US Pat. No. 9,181,822

VARIABLY OPERATED VALVE SYSTEM FOR MULTI-CYLINDER INTERNAL COMBUSTION ENGINE AND CONTROL APPARATUS FOR VARIABLY OPERATED VALVE SYSTEM

HITACHI AUTOMOTIVE SYSTEM...

1. A variably operated valve system for a multi-cylinder internal combustion engine, the internal combustion engine having
a plurality of cylinders, comprising:
a pair of intake valves and a pair of or a single exhaust valve disposed for each of the cylinders;
a first valve stop mechanism configured to switch between a valve operation state in which one of the pair of intake valves
from among the pair of intake valves of a part of the cylinders is operated to be open or closed and a valve stopped state
in which a valve open-or-closure operation of the one of the pair of intake valves is stopped; and

a second valve stop mechanism configured to switch between a valve operation state in which the other of the pair of intake
valves from among the pair of intake valves of the part of the cylinders is operated to be open or closed and the valve stopped
state in which the valve open-or-closure operation is stopped,

wherein the first valve stop mechanism is configured to be in the valve operation state when a switching energy is supplied
and to be in the valve stopped state when a supply of the switching energy is stopped and the second valve stop mechanism
is configured to be in the valve stopped state when the switching energy is supplied and to be in the valve operation state
when the supply of the switching energy is stopped,

wherein, during a start of the engine, the supply of the switching energy to the first valve stop mechanism and the second
valve stop mechanism is stopped.

US Pat. No. 9,175,593

PISTON FOR INTERNAL COMBUSTION ENGINE

Hitachi Automotive System...

1. A piston for an internal combustion engine, comprising:
a crown portion that defines a combustion chamber;
a ring-shaped cooling channel formed in the crown portion, through which a cooling oil flows; and
a plurality of concave portions formed on at least one side of the cooling channel in an axial direction of the piston, each
of the plurality of concave portions having a curved surface;

wherein each of the plurality of concave portions has a radial width smaller than a width of the cooling channel; and
wherein each of the plurality of concave portions is positioned at a position apart from a radial center of the cooling channel
in a radial direction.

US Pat. No. 9,433,134

POWER SEMICONDUCTOR MODULE AND POWER CONVERTER USING THE SAME

Hitachi Automotive System...

1. A power semiconductor module comprising:
a first package having an upper arm circuit section constituting an inverter circuit;
a second package having a lower arm circuit section constituting an inverter circuit;
a metal case having a storage space to store the first package and the second package and an opening connecting with the storage
space; and

an intermediate connecting conductor to couple the upper arm circuit section with the lower arm circuit section, wherein:
the metal case includes a first radiating section and a second radiating section facing the first radiating section through
the storage space,

the first package includes a first semiconductor chip, a first conductor plate and a second conductor plate to interpose the
first semiconductor chip, a first collector-side terminal coupled with the first conductor plate, a first emitter-side terminal
coupled with the second conductor plate, and a first sealant to seal parts of the first conductor plate and the second conductor
plate and the first semiconductor chip,

the second package includes a second semiconductor chip, a third conductor plate and a fourth conductor plate to interpose
the second semiconductor chip, a second collector-side terminal coupled with the third conductor plate, a second emitter-side
terminal coupled with the fourth conductor plate, and a second sealant to seal parts of the third conductor plate and the
fourth conductor plate and the second semiconductor chip,

further, the first package is arranged so that the arrangement direction of the first package and the second package are parallel
to the respective surfaces facing the first radiating section and the second radiating section,

the first collector-side terminal and the second emitter-side terminal protrude outside the metal case from the opening of
the metal case,

the intermediate connecting conductor couples the first emitter-side terminal with the second collector-side terminal in the
storage space of the metal case, and

the first sealant and the second sealant are provided separately from each other.

US Pat. No. 9,295,175

SEAL STRUCTURE FOR ELECTRONIC CONTROL DEVICE

Hitachi Automotive System...

1. A seal structure for an electronic control device, the electronic control device comprising: a housing having a base member
and a cover member fitted on an upper side of the base member; a circuit board accommodated in an inner space of the housing;
and a connector attached to a front end of the circuit board and exposed through a front opening window between front end
portions of the base and cover members of the housing, the seal structure comprising:
a connector seal surface formed on an upper surface of the front end portion of the base member;
a connector seal material arranged between the connector seal surface of the base member and a lower surface of the front
end portion of the connector;

a seal groove formed in an upper surface of an outer peripheral portion other than the front end portion of the base member;
a seal protrusion formed on a lower surface of an outer peripheral portion of the cover member and engaged in the seal groove;
and

a sealant filled in a clearance between the seal groove and the seal protrusion,
wherein longitudinal end regions of the connector seal surface are extended in a width direction of the connector and formed
as extended surface regions; and

wherein longitudinal end regions of the seal groove extend perpendicular to the respective extended surface regions of the
connector seal surface.

US Pat. No. 9,242,626

BRAKE DEVICE

HITACHI AUTOMOTIVE SYSTEM...

17. A brake device in which a master cylinder generating a brake liquid pressure in response to an operation of a brake operation
member by a driver is equipped, the master cylinder comprising:
a bottomed cylindrical cylinder main body having a first liquid chamber, in which a drain port connected to a wheel cylinder
is equipped, generating a liquid pressure in response to the brake operation by the driver, and a second liquid chamber in
which a suction port connected to a suction section of the pump and an auxiliary supply port communicated with a reservoir
are equipped;

a piston slidably inserted through an inner peripheral surface of the cylinder main body and interlinked with the brake operation
member;

a first piston seal sealing between an inner peripheral surface of the cylinder main body and an outer peripheral surface
of the piston to define the first liquid chamber;

a second piston seal to define the second liquid chamber together with the first piston seal; and
a third piston seal interposed between the first piston seal and the second piston seal, sealing between the inner peripheral
surface of the cylinder main body and the outer peripheral surface of the piston, interrupting the auxiliary supply port and
the suction port when the piston strokes by a distance equal to or longer than a predetermined stroke, and communicating the
auxiliary supply port and the suction port when the piston strokes by a distance shorter than the predetermined stroke.

US Pat. No. 9,058,746

INFORMATION PROCESSING DEVICE ASSOCIATED WITH VEHICLE TRAVELING

Hitachi Automotive System...

5. The information processing device according to claim 4, wherein the obstacle detected by the first version includes a pedestrian.

US Pat. No. 9,284,929

ELECTROMAGNETIC FUEL INJECTION VALVE

Hitachi Automotive System...

1. An electromagnetic fuel injection valve comprising:
a valve element which closes a fuel passage by coming into contact with a valve seat and opens the fuel passage by going away
from the valve seat;

an electromagnet which includes a coil and a magnetic core formed as a drive portion for driving the valve element;
a movable element which is held by the valve element in a state where the movable element is displaceable in the direction
of a drive force of the valve element relative to the valve element;

a first biasing portion for biasing the valve element in the direction opposite to the direction of a drive force generated
by the drive portion;

a second biasing portion for biasing the movable element in the direction of the drive force with a biasing force smaller
than the biasing force generated by the first biasing portion; and

a restricting portion for restricting the displacement of the movable element in the direction of the drive force relative
to the valve element,

wherein the biasing force (N) of the second biasing portion is set smaller than a sum of: i) a value which is obtained by
multiplying a product of a valve closing speed (m/s) of the valve element and a mass (kg) of the movable element by ?7.5×103 (l/s), and ii) a value which is obtained by multiplying a sum of the mass of the movable element and a mass of the valve element
by 2.6×103 (m/s2).

US Pat. No. 9,297,347

ENGINE STARTING APPARATUS

Hitachi Automotive System...

1. An engine starting apparatus comprising:
a pinion configured to be brought into meshing engagement with a ring gear linked to an engine;
a starter motor supplied with current from a battery to rotate the pinion;
a solenoid coil supplied with current from the battery to move the pinion in a direction of the ring gear;
a control module configured to control the starter motor; and
a first housing storing the starter motor and the solenoid coil, wherein
the control module comprises a first semiconductor switch configured to control current supply to the starter motor and a
second semiconductor switch configured to control current supply to the solenoid coil,

the control module is stored in a second housing, and
the first housing and the second housing are connected to each other by way of a bus bar.

US Pat. No. 9,247,675

POWER CONVERTER

Hitachi Automotive System...

1. A power conveter comprising:
an inverter housed in an inverter case and provided with a plurality of power semiconductor modules configured to output alternate
current; and

a DC/DC converter housed in a converter case detachably fixed to the inverter case, and provided with a down converter circuit
and/or a boost converter circuit,

wherein the inverter case includes:
a first path forming member in which a first coolant path is formed, the power semiconductor module being inserted into the
first coolant path, and the first path forming member thermally contacting the converter case; and

a second path forming member in which a second coolant path is formed parallel to the first coolant path, the power semiconductor
module being inserted into the second coolant path, and the second path forming member thermally contacting the converter
case,

the DC/DC converter includes:
an inductance device for voltage conversion; and
a switching device board on which a switching device that controls current flowing in the inductance device is mounted, and
the inductance device and the switching device board are arranged in an area of the converter case thermally contacting the
first path forming member and the second path forming member.

US Pat. No. 9,239,014

AUTOMOTIVE CONTROL DEVICE AND PERIOD MEASUREMENT METHOD FOR THE SAME

Hitachi Automotive System...

1. An automotive control device comprising:
a digital filter which processes a pulse signal output in synchronization with rotation of a rotating body which is rotated
by an engine of a vehicle;

an analog filter which processes the pulse signal;
a period measurement unit which receives an output signal of the digital filter and an output signal of the analog filter,
and outputs a measured value of a period of the pulse signal,

a conversion unit which converts a predetermined angle of the rotating body to time on the basis of the measured value of
the period output by the period measurement unit;

a correction unit which corrects the time on the basis of a phase difference between the output signal of the analog filter
and the output signal of the digital filter;

an angle detection unit which measures the time corrected by the correction unit based on the output signal of the digital
filter serving as a reference, and outputs a detection signal of an angle of the rotating body; and

a control unit which performs a control process in the vehicle on the basis of the angle detected by the angle detection unit.

US Pat. No. 9,180,852

ELECTRIC BOOSTER

HITACHI AUTOMOTIVE SYSTEM...

1. An electric booster configured to control an electric motor by a controller based on an operation of a brake pedal of a
vehicle to thrust a piston of a master cylinder, the electric booster comprising:
the electric motor;
a conversion mechanism configured to convert a driving force of the electric motor into a thrust force of the piston;
the controller; and
a housing having one end including a coupling surface where the housing is coupled to the master cylinder, and the other end
including an attachment surface where the housing is attached to the vehicle,

wherein the controller includes a flat plate-like control board, and the control board is disposed so as to be positioned
between a first plane including the attachment surface of the housing where the housing is attached to the vehicle, and a
second plane including the coupling surface of the housing where the housing is coupled to the master cylinder, and

wherein the control board is disposed in parallel with the first plane or the second plane.

US Pat. No. 9,258,934

IN-VEHICLE ELECTRONIC DEVICE AND VEHICLE HAVING THE ELECTRONIC DEVICE

Hitachi Automotive System...

1. An in-vehicle electronic device comprising: a resin housing; a control board that is covered with the housing, and accommodated
within the housing; a power wiring that supplies power to the control board; an input/output signal wiring that transmits
an input/output signal to the control board; and a metal bracket which fixes the resin housing to a vehicle main body,
wherein a distance between the metal bracket and the power wiring is set to be shorter than a distance between the metal bracket
and the input/output signal wiring to form a discharge gap.

US Pat. No. 9,074,866

ROTATIONAL ANGLE MEASUREMENT APPARATUS, CONTROL APPARATUS, AND ROTATION-MACHINE SYSTEM

Hitachi Automotive System...

1. A rotational angle measurement apparatus comprising:
a magnetic sensor operable to respond to a magnetic-field angle; and
a detection unit operable to input an output of the magnetic sensor,
wherein the rotational angle measurement apparatus is employed with a rotatable body provided with a magnetic flux generator,
wherein the output of the magnetic sensor is a raw-angle signal set corresponding to the magnetic-field angle, and
wherein the detection unit outputs a corrected angle after the influence of a non-magnetic conductor arranged in the vicinity
of the magnetic sensor is corrected, with the use of a correction value outputted by a correction function with rotational
velocity of the rotatable body as an argument.

US Pat. No. 9,301,434

POWER CONVERSION APPARATUS

Hitachi Automotive System...

1. A power conversion apparatus, comprising:
a power semiconductor module that has a power semiconductor element to convert a direct current into an alternating current;
a smoothing capacitor module that smoothes the direct current;
an alternating-current bus bar that transmits an alternating-current output of the power semiconductor element;
a control circuit unit that controls the power semiconductor element; and
a flow channel formation body that forms a flow channel through which a cooling medium flows,
wherein the power semiconductor module has a first heat dissipation portion and a second heat dissipation portion facing the
first heat dissipation portion with the power semiconductor element therebetween,

a flow channel formation body external portion of the flow channel formation body has a first surface wall that faces the
first heat dissipation portion of the power semiconductor module with the flow channel therebetween, a second surface wall
that faces the second heat dissipation portion of the power semiconductor module with the flow channel therebetween, at the
opposite side of the first surface wall with the power semiconductor module therebetween, and a sidewall that connects the
first surface wall and the second surface wall,

the sidewall has an opening to insert the power semiconductor module into the flow channel,
the smoothing capacitor module is arranged at a position facing the second surface wall of the flow channel formation body
external portion,

the alternating-current bus bar is arranged at a position facing the first surface wall of the flow channel formation body
external portion, and

the control circuit unit is arranged at a position facing the alternating-current bus bar, at the opposite side of the first
surface wall of the flow channel formation body external portion with the alternating-current bus bar therebetween.

US Pat. No. 9,241,429

POWER MODULE AND POWER CONVERSION APPARATUS USING SAME

Hitachi Automotive System...

1. A power module comprising:
a plurality of semiconductor devices constituting upper/lower arms of an inverter circuit;
a plurality of conductive plates arranged to face electrode surfaces of the semiconductor devices; and
a module case configured to accommodate the semiconductor devices and the conductive plates,
wherein the module case includes,
a heat radiation member made of plate-like metal and facing a surface of the conductive plate, and
a metallic frame body having an opening portion that is closed by the heat radiation member,
wherein a heat radiation fin unit having a plurality of heat radiation fins vertically arranged thereon is provided at a center
of the heat radiation member, and a joint portion with the frame body is provided at an external peripheral edge of the heat
radiation member, and

the heat radiation member has a thermal conductivity higher than that of the frame body, and the frame body is of a higher
rigidity than that of the heat radiation member.

US Pat. No. 9,293,937

ELECTRIC STORAGE DEVICE

HITACHI AUTOMOTIVE SYSTEM...

1. An electric storage device, comprising:
an assembled battery having a plurality of electric cells connected in series;
a battery state quantity estimator estimating battery state quantities of the plurality of electric cells;
a discharge quantity calculator calculating such a discharge quantity that state of charges (SOCs) of the respective electric
cells that have been discharged have a given magnitude relationship corresponding to the battery state quantities, for each
of the electric cells; and

a discharging circuit that discharges the plurality of electric cells on the basis of the discharge quantity calculated by
the discharge quantity calculator;

wherein the battery state quantity estimator estimates a magnitude relationship of internal resistances of the plurality of
electric cells, and

wherein the discharge quantity calculator calculates such a discharge quantity that SOCs of the electric cells which are estimated
to be larger in the magnitude relationship of internal resistances by the battery state quantity estimator become low.

US Pat. No. 9,243,632

VARIABLE DISPLACEMENT OIL PUMP

Hitachi Automotive System...

1. A variable displacement oil pump comprising:
a rotor configured to be rotationally driven;
a plurality of vanes movable out from and into an outer circumferential portion of the rotor;
a cam ring separately forming a plurality of working-oil rooms by receiving the rotor and the plurality of vanes in an inner
circumferential space of the cam ring, wherein the cam ring is configured to move to vary an eccentricity between a rotation
center of the rotor and a center of an inner circumferential surface of the cam ring and thereby to vary a variation rate
of volume of each of the plurality of working-oil rooms which is produced when the rotor rotates;

a lateral wall provided on at least one of lateral portions of the cam ring, wherein the lateral wall includes a suction portion
open to the working-oil room whose volume is increasing when the rotor is rotating under a state where the cam ring is eccentric,
and a discharge portion open to the working-oil room whose volume is decreasing when the rotor is rotating under the state
where the cam ring is eccentric;

a first control oil chamber configured to apply a first biasing force to the cam ring in a direction that reduces the eccentricity
between the rotation center of the rotor and the center of the inner circumferential surface of the cam ring, by oil discharged
and introduced from the discharge portion into the first control oil chamber;

a second control oil chamber configured to apply a second biasing force to the cam ring in a direction that enlarges the eccentricity
between the rotation center of the rotor and the center of the inner circumferential surface of the cam ring, by oil discharged
and introduced from the discharge portion into the second control oil chamber, wherein the second biasing force is smaller
than the first biasing force;

a biasing mechanism configured to apply a third biasing force to the cam ring in the direction that enlarges the eccentricity
between the rotation center of the rotor and the center of the inner circumferential surface of the cam ring under a state
where the biasing mechanism is given a set load, wherein the biasing mechanism is configured to increase the third biasing
force discontinuously in a stepwise manner when the eccentricity between the rotation center of the rotor and the center of
the inner circumferential surface of the cam ring becomes lower than or equal to a predetermined amount; and

a changeover mechanism
including a valving element receiving a fourth biasing force in a direction toward a first position of the valving element
and configured to move against the fourth biasing force by a discharge pressure discharged from the discharge portion,

configured to connect the first control oil chamber with a drain portion when the valving element is in the first position,
configured to introduce the discharge pressure into the first control oil chamber and the second control oil chamber when
the valving element moves and reaches a second position thereof against the fourth biasing force, and

configured to drain a part of oil of the second control oil chamber to the drain portion and to continue to introduce the
discharge pressure into the first control oil chamber when the valving element moves from the second position and reaches
a third position thereof against the fourth biasing force,

wherein the changeover mechanism changes from the first position of the valving element to the second position of the valving
element, when the discharge pressure becomes higher than or equal to a pressure level at which the cam ring can move against
the set load of the biasing mechanism, and is lower than or equal to a pressure level at which the third biasing force of
the biasing mechanism is increased in the stepwise manner.

US Pat. No. 9,178,294

PRINTED CIRCUIT BOARD AND ELECTRONIC DEVICE USING PRINTED CIRCUIT BOARD

Hitachi Automotive System...

1. A printed circuit board in which three or more layers of circuit boards are laminated and a large number of through holes
for insertion of terminal pins of electronic parts are formed,
wherein lands of a conductor material are formed around a first through hole and a second through hole of the large number
of through holes on surfaces of a top layer circuit board and a bottom circuit board, and the first land around the first
through hole and the second land around the second through hole formed on the side of the top layer circuit board are electrically
connected to the land around the first through hole and the land around the second through hole formed on the side of the
bottom layer circuit board via a conductor member formed on an inner wall surface of the first through hole or a conductor
member formed on an inner wall surface of the second through hole,

wherein, in a circuit board held between the top layer circuit board and the bottom layer circuit board, a first conductor
film connected to the conductor member formed on the inner wall surface of the first through hole and a second conductor film
connected to the conductor member formed on the inner wall surface of the second through hole, and a third conductor film,
held between the first conductor film and the second conductor film, not electrically connected to the first conductor film
and the second conductor film, are formed, and

wherein, when the printed circuit board is viewed from an upper surface, in a region from the first through hole to the second
through hole, any one of the first land and the second land, the first conductor film and the second conductor film, and the
third conductor film, exists in a width equal to or wider than a diameter of the first through hole and the second through
hole.

US Pat. No. 9,086,269

STEERING ANGLE SENSOR AND ELECTRIC POWER STEERING DEVICE EMPLOYING THE SAME

HITACHI AUTOMOTIVE SYSTEM...

1. A steering angle sensor comprising:
a steering shaft rotating together with a steering wheel;
a sensor housing arranged to enclose the steering shaft;
a first gear rotatably received in the sensor housing, the first gear including an annular body portion, disposed about a
given part of the steering shaft leaving a given annular clearance therebetween, and an annular toothed portion formed on
an outer periphery of the annular body portion;

a second gear rotatably received in the sensor housing, the second gear having a magnetic member at a center portion thereof
and an annular toothed portion meshed with the annular toothed portion of the first gear;

a third gear rotatably received in the sensor housing, the third gear having another magnetic member at a center portion thereof
and an annular toothed portion meshed with the annular toothed portion of the second gear, the second gear and the third gear
being meshed to each other to form a speed reduction unit of the second and third gears that has a predetermined speed reduction
rate;

a first magnetoresistive element detecting a change of a magnetic field produced by the magnetic member of the second gear
for obtaining a first rotation angle of the second gear;

a second magnetoresistive element detecting a change of a magnetic field produced by the magnetic member of the third gear
for obtaining a second rotation angle of the third gear;

an elastic member compressed in the given annular clearance between the steering shaft and the first gear, a thickness of
the elastic member in a non-compressed condition being larger than a thickness of the given annular clearance; and

a control unit that obtains an absolute steering angle of the steering wheel based on the first and second rotation angles
of the second and third gears.

US Pat. No. 9,291,310

TANK-INTEGRATED PUMP UNIT AND RESERVOIR TANK

HITACHI AUTOMOTIVE SYSTEM...

1. A tank-integrated pump unit comprising:
a pump body including:
a portion defining an accommodating space;
a portion defining a suction passage;
an outside portion defining a suction hole hydraulically connected to the suction passage; and
a portion defining a discharge passage;
a pumping part arranged in the accommodating space, and configured to perform a pumping action by being driven by rotation
of a drive shaft, and discharge working fluid to an external hydraulic device through the discharge passage; and

a reservoir tank fixed to the pump body, and configured to store working fluid, wherein the reservoir tank includes:
a body configured to store working fluid, wherein the body includes a wall including a portion defining an introduction opening
configured to introduce working fluid from the external hydraulic device into the body;

a fixing device configured to fix the body to the pump body;
a filter member arranged in the body, and configured to filter working fluid introduced through the introduction opening;
a suction passage connection portion connected to the suction hole of the pump body, wherein the suction passage connection
portion includes a body-side opening through the wall of the body, wherein the body-side opening is located below a predetermined
level of working fluid and above a lowermost position in the body in a vertical direction; and

a pressure chamber defined in the body, and located below the body-side opening of the suction passage connection portion
in the vertical direction, wherein the introduction opening faces the pressure chamber, and wherein the filter member is arranged
at an upper side of the pressure chamber,

wherein an entire part of the pressure chamber is located below the body-side opening of the suction passage connection portion
in the vertical direction.

US Pat. No. 9,267,400

VARIABLE VALVE DEVICE FOR INTERNAL COMBUSTION ENGINE

HITACHI AUTOMOTIVE SYSTEM...

1. A variable valve device for an internal combustion engine, comprising:
a drive rotating member configured to receive a rotational force from a crankshaft, the drive rotating member including an
annular internal-teeth constituting portion having an inner circumferential portion formed with internal teeth;

an electric motor including a motor output shaft configured to rotate relative to the drive rotating member on request;
an eccentric shaft portion provided on the motor output shaft and formed in a cylindrical shape such that an outer circumferential
surface of the eccentric shaft portion is eccentric relative to a rotational center of the eccentric shaft portion;

a plurality of rollers provided between the internal teeth and the eccentric shaft portion and having total number smaller
than total number of the internal teeth; and

a driven rotating member configured to
rotate integrally with a cam shaft,
permit the rollers to move in a radial direction of the driven rotating member according to the eccentric shaft portion, and
restrict a movement of the rollers in a circumferential direction of the driven rotating member,
wherein a hardness of a tooth bottom surface of the internal teeth of the internal-teeth constituting portion is lower than
a hardness of a tooth top and a tooth surface of the internal teeth.

US Pat. No. 9,197,145

MOTOR CONTROL APPARATUS AND POWER STEERING APPARATUS

HITACHI AUTOMOTIVE SYSTEM...

1. A motor control apparatus configured to drive and control a three-phase brushless motor configured to rotationally drive
a driving shaft of an apparatus installed on a vehicle, the motor control apparatus comprising:
an instruction current calculator configured to calculate an instruction current value to the three-phase brushless motor
based on a driving state of the vehicle;

a PWM controller configured to output a PWM duty signal to each phase of the three-phase brushless motor according to the
instruction current value;

a bridge circuit including a switching circuit configured to be driven and controlled by the PWM duty signal, and configured
to drive and control the three-phase brushless motor;

a current sensor provided at a direct-current bus connected to the bridge circuit, and configured to detect a direct-current
bus current passing through the direct-current bus;

a phase current calculator configured to estimate current values of respective phases based on the direct-current bus current
when the PWM duty signal of a maximum phase corresponding to a longest power supply time is turned on and the duty signals
of a minimum phase corresponding to a shortest power supply time and a middle phase are turned off among the PWM duty signals
to the respective phases of the three-phase brushless motor, and the direct-current bus current when the PWM duty signal of
the maximum phase is turned on and the PWM duty signal of the middle phase is turned on;

a current feedback circuit configured to perform a feedback correction on the instruction current value based on the current
values of the respective phases estimated by the phase current calculator;

a pulse shift control circuit that estimates current values of respective phases based on the direct-current bus current and
is configured to perform pulse shift control of correcting a phase of the PWM duty signal of the maximum or the middle phase
corresponding to a timing when the PWM duty signal of the maximum or the middle phase is turned on in such a manner that a
difference between the timing when the PWM duty signal of the maximum phase is turned on and the timing when the PWM duty
signal of the middle phase is turned on can reach or exceed a second predetermined value larger than a first predetermined
value when the difference between the timing when the PWM duty signal of the maximum phase is turned on and the timing when
the PWM duty signal of the middle phase is turned on falls below the first predetermined value, and correcting a phase of
the PWM duty signal of the middle or minimum phase in such a manner that a difference between the timing when the PWM duty
signal of the middle phase is turned on and a timing when the PWM duty signal of the minimum phase is turned on can reach
or exceed the second predetermined value when the difference between the timing when the PWM duty signal of the middle phase
is turned on and the timing when the PWM duty signal of the minimum phase is turned on falls below the first predetermined
value;

a pulse shift phase switching controller provided at the pulse shift control circuit, and configured to perform pulse shift
phase switching control of switching a control target phase on which the pulse shift control is performed, when the middle
phase or the minimum phase is changed into the maximum phase, or the maximum phase or the middle phase is changed into the
minimum phase according to a change in the instruction current value; and

a phase switching subsequent correction amount calculator provided at the pulse shift control circuit, and configured to perform
phase switching subsequent correction amount adjustment control of determining a correction amount for the phase by the pulse
shift control in such a manner that a correction amount after the switching becomes smaller than a correction amount before
the switching of the phase for which the pulse shift control is performed in the pulse shift switching control.

US Pat. No. 9,268,740

EXTERNAL ENVIRONMENT RECOGNIZING DEVICE FOR VEHICLE AND LIGHT DISTRIBUTION CONTROL SYSTEM USING THE SAME

Hitachi Automotive System...

1. An external environment recognizing device for vehicle comprising:
an image acquiring unit comprising a camera configured to acquire an image obtained by picking up an image of an area ahead
of an own vehicle;

one or more computers configured with:
a light-source extracting unit configured to extract a light source from the acquired image to determine a position of the
light source;

an own-vehicle-speed acquiring unit configured to acquire own vehicle speed;
an oncoming-vehicle-presence-possible-region setting unit configured to estimate an oncoming vehicle presence possible region
on the basis of the own vehicle speed; and

an oncoming-vehicle detecting unit configured to detect an oncoming vehicle on the basis of the oncoming vehicle presence
possible region estimated by the oncoming-vehicle-presence-possible-region setting unit and the light source extracted by
the light-source extracting unit, wherein

the oncoming-vehicle-presence-possible-region setting unit is configured to estimate a minimum turning radius of a traveling
road on the basis of the own vehicle speed, a minimum curvature radius of the traveling road corresponding to a speed limit
determined in advance, and traffic information indicating whether driving on the traveling road is driving on a right side
or driving on a left side and estimate the oncoming vehicle presence possible region on the basis of the estimated minimum
turning radius such that certain areas are excluded from the presence possible region based upon whether driving on the traveling
road is driving on a right side or driving on a left side and which direction the vehicle is turning.

US Pat. No. 9,180,841

DISK BRAKE

HITACHI AUTOMOTIVE SYSTEM...

1. A disk brake comprising:
a mount member configured to be attached to a non-rotational portion of a vehicle over a disk, the mount member including
a pair of pin insertion portions extending in a disk axial direction of the disk;

a caliper supported by the mount member via slide pins so as to be slidably movable in the disk axial direction, the slide
pins being fitted in the pair of pin insertion portions of the mount member; and

at least a pair of frictional pads positioned at respective surface sides of the disk and attached so as to be movable relative
to the mount member in the disk axial direction, the at least pair of frictional pads being configured to be pressed against
the respective surfaces of the disk by the caliper,

the mount member including:
an inner-side torque receiving portion configured to receive a braking torque of the inner-side frictional pad, which is one
of the pair of frictional pads at an inner side corresponding to a non-rotational portion side of the vehicle;

an outer-side torque receiving portion configured to receive a braking torque of the outer-side frictional pad, which is the
other of the pair of frictional pads at an outer side corresponding to an opposite side of the disk from the inner side; and

a connection portion arranged to connect the outer-side torque receiving portion and the inner-side torque receiving portion,
wherein the pin insertion portions are provided so as to outwardly protrude from an outer surface of the connection portion
in a disk radial direction of the disk, wherein each of the pair of pin insertion portions includes a pin insertion hole and
each of the pin insertion holes has a bottom of the pin insertion hole, which is internally formed as a bottomed hole,

wherein the bottom of each of the pin insertion holes is positioned closer to the inner-side torque receiving portion than
the outer-side torque receiving portion is to the inner-side torque receiving portion, and

wherein each of the pin insertion portions is disposed on the mount member such that a line connecting the axes of the pin
insertion portions is located outwardly of the periphery of the disk in the radial direction of the disk.

US Pat. No. 9,516,769

ELECTRONIC CONTROL DEVICE

Hitachi Automotive System...

1. An electronic control device, comprising:
a circuit board on which an electronic component having a heat generating characteristic is mounted;
a resin made cabinet housing the circuit board; and
a ventilation passage whose one end is opened to an inside of the cabinet and whose other end is opened to an outside of the
cabinet to communicate between the inside of the cabinet and the outside of the cabinet, wherein the one end of the ventilation
passage is opened to the electronic component having the heat generating characteristic, a standing wall stands up from a
bottom wall having a one end opening along an outer peripheral edge of the one end opening, and a tip of the standing wall
is closer to the circuit board than the one end opening.

US Pat. No. 9,188,078

CONTROL APPARATUS OF INTERNAL COMBUSTION ENGINE

Hitachi Automotive System...

1. A control apparatus of an internal combustion engine operable upon switching a combustion mode, comprising:
a detection timing setting means for setting a detection time and a detection duration to detect a sensor signal of a crank
angle sensor in accordance with the combustion mode;

a combustion change determination means for determining whether or not there is a combustion change based on the sensor signal
detected by the crank angle sensor at the detection time and for the detection duration set by the detection timing setting
means; and

a combustion change suppression control means for controlling to suppress the combustion change of the internal combustion
engine in a case where the combustion change determination means determines that there is the combustion change, wherein

the combustion mode includes compression ignited combustion and spark ignited combustion,
the detection timing setting means, in a case where the combustion mode is the compression ignited combustion, shortens the
detection duration and advances the detection time in comparison to the spark ignited combustion,

the combustion change suppression control means, in a case where determination of the combustion change determination means
is altered from the combustion change to non-combustion change as a result of suppression control of the combustion change,
maintains a combustion change suppression control state at a time point when the determination is altered, and

the combustion change suppression control means controls to suppress the combustion change of the internal combustion engine
based on a rotation angle and an angular velocity of a crankshaft obtained from the sensor signal of the crank angle sensor.

US Pat. No. 9,296,374

MOTION CONTROLLING APPARATUS FOR A VEHICLE

Hitachi Automotive System...

1. A motion controlling apparatus for a vehicle, comprising:
a control unit for controlling independently driving forces or a driving torques and/or braking forces or braking torques
of wheels of a vehicle;

a vehicle acceleration/deceleration instruction calculator for calculating a vehicle acceleration/deceleration instruction
value on the basis of a lateral jerk of the vehicle;

a first vehicle yaw moment instruction calculator for calculating a first vehicle yaw moment instruction value on the basis
of the lateral jerk of the vehicle; and

a second vehicle yaw moment instruction calculator for calculating a second vehicle yaw moment instruction value on the basis
of lateral slip information of the vehicle,

wherein the motion controlling apparatus further includes:
a first mode under which acceleration/deceleration of the vehicle is controlled on the basis of the vehicle acceleration/deceleration
instruction value that generates driving forces or driving torques and/or braking forces or braking torques of four wheels
of the vehicle, the driving forces or driving torques for left wheels and that for right wheels being substantially equal
to each other;

a second mode under which yaw moment of the vehicle is controlled on the basis of the first vehicle yaw moment instruction
value that generates driving forces or driving torques and/or braking forces or braking torques of four wheels of the vehicle,
the driving forces or driving torques for left wheels and that for right wheels being different from each other; and

a third mode under which yaw moment of the vehicle is controlled on the basis of the second vehicle yaw moment instruction
value that generates driving forces or driving torques and/or braking forces or braking torques of four wheels of the vehicle,
the driving forces or driving torques for left wheels and that for right wheels being different from each other.

US Pat. No. 9,297,677

GAS FLOW RATE MEASURING APPARATUS FOR MINIMIZING TEMPERATURE DEPENDENT ERRORS

Hitachi Automotive System...

1. A gas flow rate measuring apparatus including
a gas flow rate detection circuit configured to output a first analog signal of a gas flow rate of a gas flowing in a gas
flow path;

a gas temperature detection element configured to output a second analog signal of a temperature of the gas in the gas flow
path or a temperature of an integrated circuit;

a first analog-to-digital (AD) converter for converting the first analog signal from the gas flow rate detection circuit into
a first digital signal;

a second AD converter for converting the second analog signal from the gas temperature detection element into a second digital
signal;

a digital signal correction device comprising a map table and configured to correct a characteristic bend of the first digital
signal based on the map table and the second digital signal, resulting in a gas flow rate measurement,

wherein the map table comprises correction constants arranged in a lattice pattern of lattice points;
a first number of lattice points in a first region of the characteristic bend of the gas flow rate signal is larger than a
second number of lattice points of a second region outside the first region of the characteristic bend, wherein the first
region and the second region are equal in size;

the gas flow rate is represented by Q and a value obtained by zero-span operation of an output characteristic of the gas flow
rate detection signal which is a target after correction and an output of the gas flow rate detection signal is represented
by ?Y;

a minimum value of a search region for the characteristic bend is represented by a, a maximum value of the search region for
the characteristic bend is represented by b, and a division number between a and b is represented by n; and

a product of a value obtained by dividing a sum of ?Y and a gradient of Q for individual intervals obtained by the division
between a and b and a value ?Ymax when ?Y is highest between a and b or a value ?Ymin when ?Y is lowest between a and b is
represented by S,

the digital signal correction device configured to search for a location of the characteristic bend in accordance with a and
b, calculate a magnitude of the characteristic bend on the basis of the magnitude of S, and correct, when the value of an
absolute value |S| of S is equal to or higher than 0.005, the gas flow rate detection signal such that the value of |S| is
equal to or lower than 0.055 in accordance with the values of a, b, and S.

US Pat. No. 9,182,452

POWER SUPPLY VOLTAGE MONITORING CIRCUIT, SENSOR CIRCUIT FOR VEHICLE, AND POWER STEERING APPARATUS

HITACHI AUTOMOTIVE SYSTEM...

17. A power steering apparatus comprising:
a steering mechanism configured to steer a steered wheel in accordance with steering operation of a steering wheel;
an electric motor configured to apply a steering force to the steering mechanism;
a sensor configured to sense a state of steering of the steering mechanism;
a motor control circuit configured to control drive of the electric motor based on the sensed state of steering of the steering
mechanism;

a first microcomputer including a first microprocessor and a first interface, wherein the first microcomputer is connected
to a ground, and configured to control the sensor;

a second microcomputer including a second microprocessor and a second interface, wherein the second microcomputer is connected
to the ground, and configured to control the sensor;

a first power supply configured to supply electric power to the first microcomputer;
a second power supply configured to supply electric power to the second microcomputer;
a first reference voltage generation circuit connected between the first power supply and the first microcomputer, and configured
to supply a first reference voltage to the first microcomputer in response to a condition that voltage of the first power
supply is higher than the first reference voltage; and

a first monitoring circuit connected between the second power supply and the first microcomputer, and configured to supply
a first monitoring voltage to the first microcomputer, wherein the first microcomputer is configured to monitor voltage of
the second power supply based on the supplied first monitoring voltage;

wherein the first microcomputer includes a first voltage abnormality determination part configured to perform a first operation
based on the supplied first reference voltage and the supplied first monitoring voltage, wherein the first operation includes
detecting abnormality in the voltage of the first power supply and the voltage of the second power supply, and determining
which one of the voltage of the first power supply and the voltage of the second power supply is abnormal.

US Pat. No. 9,510,438

ELECTRONIC CONTROL DEVICE

Hitachi Automotive System...

1. An electronic control device housing a circuit board having an electronic component thereon in a housing of the device,
wherein a wall surface of the housing facing a mounting position of the electronic component on the circuit board is partially
open and a convex-shaped heat dissipating metal part having a flange on its bottom side is attached to the opening from outside,
and

wherein a top section of the metal part comes into contact with a position on the circuit board corresponding to the mounting
position of the electronic component with a heat dissipating filler material placed therebetween when the metal part is attached
from the opening of the housing and the flange and a wall section near the opening are brought into contact with each other
with a sealing filler material placed therebetween.

US Pat. No. 9,291,229

SHOCK ABSORBER

HITACHI AUTOMOTIVE SYSTEM...

1. A shock absorber comprising:
an outer tube;
an annular cylinder in which hydraulic fluid is sealingly contained and that is disposed in the outer tube;
a reservoir chamber in which hydraulic fluid and gas are sealingly contained;
a piston slidably and fittedly inserted in the cylinder and dividing an interior of the cylinder into a rod-side chamber and
an opposite rod-side chamber;

a piston rod extending from one end of the cylinder to an outside; and
a rod guide disposed at one end side of the cylinder and configured to slidably support the piston rod,
wherein the cylinder includes a piston sliding portion on which the piston slides, and a large-diameter portion provided integrally
with the piston sliding portion at one end side of the piston sliding portion so as to have a diameter increased radially
outwardly,

the piston sliding portion has an inner diameter and an outer diameter,
the large-diameter portion has an inner diameter and an outer diameter,
the inner diameter of the large-diameter portion is larger than the inner diameter of the piston sliding portion,
the outer diameter of the large-diameter portion is larger than the outer diameter of the piston sliding portion,
the large-diameter portion being supported by the rod guide by being fitted to the rod guide so that the one end side of the
cylinder is positioned relative to the outer tube,

a passage is provided at the rod guide so as to establish communication between the rod-side chamber and the reservoir chamber,
and

a valve mechanism is disposed at the passage.

US Pat. No. 9,239,306

ABNORMALITY DIAGNOSIS APPARATUS FOR ELECTRIC PUMP

Hitachi Automotive System...

1. An abnormality diagnosis apparatus for an electric pump which supplies a working fluid based on a command from an external
device, the abnormality diagnosis apparatus comprising:
a rotation count detecting unit that detects a number of rotations of a motor which drives the electric pump; and
a processing unit which decides in a first series of steps that there is a probability of occurrence of an abnormality in
the electric pump when detecting a state in which the motor is driven by a current equal to or greater than an upper limit
current used upon a normal operation and the number of rotations of the motor is less than a lower limit number of rotations
which is set based on a working fluid temperature condition, and which decides in a second series of steps that there is the
probability of occurrence of the abnormality when detecting a state in which the motor is driven with a current limited by
a current limit value less than the upper limit current and the number of rotations of the motor is less than a predetermined
number of rotations which is set lower than the lower limit number of rotations according to limitation of the current limit
value indicating that the motor is stopped or close to being stopped,

wherein the motor is stopped by the external device when it is decided that there is the probability of occurrence of the
abnormality in the electric pump.

US Pat. No. 9,184,690

ELECTRICALLY DRIVEN POWER STEERING SYSTEM AND CONTROL APPARATUS FOR THE SAME

Hitachi Automotive System...

1. An electrically driven power steering system comprising:
a steering mechanism that steers steerable wheels of a vehicle along with a steering operation of a steering wheel;
a three-phase brushless motor that provides a steering assistance force for the steering mechanism;
a control apparatus that drivingly controls the three-phase brushless motor on a basis of a driving situation of the vehicle;
a current control section disposed in the control apparatus to calculate control command values for the three-phase brushless
motor in accordance with the driving situation of the vehicle;

a PWM control section disposed in the control apparatus to output a PWM duty signal for each phase of u, v, and w of the three-phase
brushless motor in accordance with the control command values;

a bridge circuit disposed in the control apparatus to drivingly control the three phase brushless motor and constituted by
a switching circuit drivingly controlled by the PWM duty signal;

a current sensor disposed in a direct current bus bar connected to the bridge circuit and that detects a direct current bus
bar current flowing through the direct current bus bar;

a phase current calculation section disposed in the control apparatus to estimate a current value of each phase of u, v, and
w of the three phase brushless motor on a basis of the direct current bus bar current when one of the PWM duty signals of
a maximum phase whose power supply turning-on time duration is longest is on and the remaining two PWM duty signals of a minimum
phase whose power supply turning-on time duration is shortest and of a middle phase whose power supply turning-on time duration
is intermediate between the maximum phase and the minimum phase are off, and on a basis of the direct current bus bar current
when the PWM duty signal of the maximum phase is on and the PWM duty signal of the middle phase is on, from among the PWM
duty signals to respective phases u, v, and w of the three-phase brushless motor;

a pulse shift control circuit disposed in the control apparatus to perform a pulse shift control such that a phase of an on
timing of the PWM duty signal of the maximum phase or the middle phase is corrected such that a difference in the on timings
between the PWM duty signals of the maximum phase and of the middle phase becomes equal to or larger than a second predetermined
value which is larger than a first predetermined value, when the difference in the on timing of the PWM duty signal of the
maximum phase and the on timing of the PWM duty signal of the middle phase is smaller than the first predetermined value,
and the phase of the on timing of the PWM duty signal of the middle phase or the minimum phase is corrected such that the
difference in the on timings of the PWM duty signals of the middle phase and of the minimum phase becomes equal to or larger
than the second predetermined value, when the difference in the on timings of the PWM duty signals of the middle phase and
of the minimum phase is smaller than the first predetermined value; and

a phase switching control circuit disposed in the pulse shift control circuit to stop a phase correction by means of the pulse
shift control circuit, when a pre-correction on interval which is a power supply turning-on duration time of the PWM duty
signal of the maximum phase before the correction by means of the pulse shift control is shorter than the pre-correction on
interval of the middle phase and a difference between the pre-correction on intervals of the maximum phase and of the middle
phase becomes equal to or larger than a third predetermined value, to switch one of the u, v, w phases that has been the maximum
phase to the middle phase and to switch one of the remaining two phases that has been the middle phase to the maximum phase
and to stop the phase correction by means of the pulse shift control, when the pre-correction on interval of the middle phase
is shorter than the pre-correction on interval of the minimum phase and the difference between the pre-correction on intervals
of the middle phase and of the minimum phase is equal to or larger than the third predetermined value, to switch one of the
u, v, w phases that has been the middle phase to the minimum phase and to switch one of the remaining two phases that has
been the minimum phase to the middle phase.

US Pat. No. 9,132,819

VEHICLE CONTROL APPARATUS

HITACHI AUTOMOTIVE SYSTEM...

1. A vehicle control apparatus comprising:
a first braking force generating section configured to actuate, by hydraulic pressure, wheel cylinders which are mounted on
a vehicle, which are connected through hydraulic pipes with a master cylinder, and which are provided, respectively, to a
plurality of wheels, and thereby to generate a braking force to the wheels;

a second braking force generating section which is provided to one of the plurality of the wheels, and which is configured
to be mechanically regulated to provide the braking force to the one of the plurality of wheels;

a braking force control switching section configured to automatically switch the second braking force generating section from
a non-actuation state to an actuation state when a predetermined condition is satisfied in an actuation state of the first
braking force generating section and in the non-actuation state of the second braking force generating section, to decrease
the hydraulic pressure of the first braking force generating section, and thereby to switch the first braking force generating
section to the non-actuation state; and

a braking force characteristic control section configured to control a braking force characteristic which is generated by
the first braking force generating section, and is associated with switching of the braking force control switching section,

wherein the braking force characteristic control section is configured to limit decrease gradients of hydraulic pressures
of wheel cylinders provided to others of the plurality of the wheels to a value equal to or smaller than a predetermined gradient.

US Pat. No. 9,121,524

SHOCK ABSORBER

HITACHI AUTOMOTIVE SYSTEM...

1. A shock absorber comprising:
a cylinder in which a working fluid is sealed;
a piston slidably inserted into the cylinder and configured to partition the inside of the cylinder into two chambers;
a piston rod connected to the piston and extending to the outside of the cylinder;
a plurality of paths through which the working fluid flows due to sliding movement of the piston; and
a damping force generating mechanism installed at a portion of the path and configured to suppress a flow of the working fluid
to generate a damping force,

wherein the damping force generating mechanism comprises:
a valve main body through which the path passes;
an annular outer seat protruding to the valve main body;
an inner seat protruding into the outer seat of the valve main body;
an annular intermediate seat protruding to surround an opening section of the path between the outer seat and the inner seat
of the valve main body;

a disk support section protruding between the intermediate seat and the inner seat, having a tip height position in a protruding
direction higher than that of the inner seat and lower than that of the intermediate seat, and continuously or discontinuously
disposed in an annular shape; and

a first disk placed to be capable of sitting on the outer seat, the inner seat, the intermediate seat and the disk support
section, and

wherein, in a state in which the first disk is pressed against the inner seat and placed on the outer seat, the intermediate
seat and the disk support section, in the first disk, a first bending section bent in a convex shape toward the valve main
body side is formed between the inner seat and the disk support section, a second bending section bent in a convex shape toward
a side spaced apart from the valve main body is formed between the disk support section and the outer seat, and the shock
absorber sits on the intermediate seat and the outer seat.

US Pat. No. 9,199,639

MOTION CONTROL SYSTEM OF VEHICLE

Hitachi Automotive System...

1. A motion control system of a vehicle, comprising:
a controller that independently controls driving force and/or braking force of each of four wheels; and
a turning direction sensor that senses a turning direction, wherein:
the controller is provided with an acceleration/deceleration command generator that generates an acceleration/deceleration
command based upon a sensed steering angle and sensed vehicle speed and a driving force/braking force distributor that determines
the distribution of the driving force or more driving torque and/or the braking force or braking torque of each wheel;

the driving force/braking force distributor is configured to determine that it distributes more driving force or more driving
torque and/or more braking force or more braking torque to the inside wheel in turning than the outside wheel in turning as
to the front wheels and distributes more driving force or more driving torque and/or more braking force or more braking torque
to the outside wheel in turning than the inside wheel in turning as to the rear wheels respectively based upon the acceleration/deceleration
command and the turning direction; and

the acceleration/deceleration command generator is configured to turn the acceleration/deceleration command to zero based
on external information including any of obstacle information, preceding vehicle information and following vehicle information
sensed by an external information sensor.

US Pat. No. 9,413,201

ROTATING ELECTRICAL MACHINE AND VEHICLE EQUIPPED WITH ROTATING ELECTRICAL MACHINE

Hitachi Automotive System...

1. A rotating electrical machine, comprising:
a stator core having a plurality of slots formed therein;
a stator winding assuming a plurality of phases, which includes a plurality of round windings wound with a wave winding pattern,
each having slot conductors each inserted at one of the slots at the stator core to form one of a plurality of layers and
cross conductors each connecting same-side ends of slot conductors inserted at different slots so as to form a coil end; and

a rotor rotatably supported with an air gap so as to be allowed to rotate relative to the stator core, wherein:
the cross conductors connect the slot conductors so as to run astride slots with the slot pitch Np set to N+1 at coil ends
on one side and run astride slots with the slot pitch Np set to N?1 at coil ends on another side, with N representing a number
of slots per pole;

the stator winding includes a plurality of stator winding groups, wherein no phase difference manifests between voltages induced
at each of the stator winding groups of the same phase,

wherein each of the stator winding groups includes a plurality of the round windings of the same phase, and
the stator winding includes a plurality of slot conductor groups each having a plurality of slot conductors corresponding
to a single phase;

the plurality of slot conductors in each slot conductor group are inserted at a predetermined number Ns of successive slots
forming a continuous range along a circumference of the stator core so that the slot conductors in the slot conductor group
take successive slot positions and successive layer positions; and

the predetermined number Ns is set so that Ns=NSPP+NL when NSPP represents a number of slots per phase per pole and NL represents
a number that is equal to a number of layers divided by 2.

US Pat. No. 9,252,453

RECHARGEABLE BATTERY

Hitachi Automotive System...

1. A rechargeable battery comprising:
a lump of flat electrodes formed by winding an electrode;
a battery pack configured to accommodate the lump of the flat electrodes;
a battery lid configured to seal the battery pack;
an external terminal provided on the battery lid;
an electricity collector configured to connect the electrode and the external terminal; and
laminated portions of the electrode at both end portions of the lump of the flat electrodes in a direction of a wound center
axis are separated into two bundle electrode connecting portions from a center side of the thickness direction of the lump
of the flat electrodes outward of the battery pack,

the electricity collector includes:
a pair of joint plates each including a main plate having an electricity collector joint surface to be joined to each of electrode
joint surfaces provided on the separated two bundle electrode connecting portions and a rib plate bent from the main plate
and extending outward of the battery pack;

a mounting plate extending along an inner surface of the battery lid;
a pair of connecting plates bent from side portions of the mounting plate and extending toward a bottom surface of the battery
pack; and

a pair of coupling plates configured to couple the pair of connecting plates and the pair of joint plates, respectively, wherein
the each one of the pair of coupling plates inclines from one end of the each of the connecting plates toward a center of
the lump of the flat electrodes in the thickness direction, simultaneously extends toward the bottom surface of the battery
pack, and is coupled to the one end of each of the pair of joint plates.

US Pat. No. 9,302,700

TORQUE SENSOR AND POWER STEERING SYSTEM USING THE TORQUE SENSOR

HITACHI AUTOMOTIVE SYSTEM...

13. A power steering system comprising:
a steering mechanism having;
a steering shaft formed by an input shaft which rotates according to a steering operation of a steering wheel and an output
shaft to which a rotation of the input shaft is transmitted by being connected to the input shaft through a torsion bar; and

a conversion mechanism which converts a rotation of the output shaft to a steering motion of steered road wheels,
a torque sensor that detects a steering torque generated in the steering shaft; and
an electric motor that provides a steering force to the steering mechanism on the basis of an output signal of the torque
sensor, and

the torque sensor having;
a magnetic member provided at the first shaft member so as to rotate integrally with the first shaft member and having different
magnetic poles that are alternately arranged in a circumferential direction concentrically with a rotation axis of the rotation
member;

a first yoke member formed by magnetic material and provided at the second shaft member so as to rotate integrally with the
second shaft member, the first yoke member having;

(a) a plurality of first nail portions that are arranged concentrically with the rotation axis so as to face the magnetic
member in a radial direction of the rotation axis; and

(b) a first ring portion that connects the first nail portions together,
a second yoke member formed by magnetic material and provided at the second shaft member so as to rotate integrally with the
second shaft member, the second yoke member having;

(c) a plurality of second nail portions that are arranged concentrically with the rotation axis in such a way that the first
nail portions and the second nail portions are alternately arranged in the circumferential direction and the second nail portions
face the magnetic member in the radial direction of the rotation axis; and

(d) a second ring portion that is arranged at an outer circumferential side of the first ring portion so as to be separated
from and face the first ring portion and connects the second nail portions together,

a first magnetic flux concentration ring formed by magnetic material and having a substantially arc-shape in a horizontally-cut
cross section, the first magnetic flux concentration ring provided between the first ring portion and the second ring portion
so that the first magnetic flux concentration ring and the first ring portion are arranged in layers each other in the radial
direction and generating thereinside magnetic field by magnetic field generated in the first ring portion;

a second magnetic flux concentration ring formed by magnetic material and having a substantially arc-shape in a horizontally-cut
cross section, the second magnetic flux concentration ring provided between the second ring portion and the first magnetic
flux concentration ring so that the second magnetic flux concentration ring and the second ring portion are arranged in layers
each other in the radial direction and generating thereinside magnetic field by magnetic field generated in the second ring
portion; and

a magnetic sensor arranged between the first and second magnetic flux concentration rings and having a Hall device that detects
a change of internal magnetic field between the first and second magnetic flux concentration rings which occurs by receiving
the magnetic field between the first and second ring portions which changes according to a change of a relative angle between
the first and second nail portions and the magnetic member in response to torsion deformation of the torsion bar.

US Pat. No. 9,274,511

FAILSAFE OPERATION OF VEHICLE ELECTRONIC CONTROL UNIT

HITACHI AUTOMOTIVE SYSTEM...

1. A vehicle control device that executes a function to control a motor vehicle, comprising:
a failure detection unit that receives operational state information indicating operational states of a plurality of hardware
components in the motor vehicle and determines whether one or more of the plurality of hardware components includes a failure
based on the received operational state information, the plurality of hardware components being in communication with and
separate from the vehicle control device;

a functional failure determination unit that receives failure information indicating the determined failure of the one or
more hardware components and determines, based on the received failure information, a functional failure level from a plurality
of functional failure levels, each indicating a degree of an impact on a behavior of a system comprising the plurality of
hardware components; and

a failsafe control unit that performs a failsafe operation corresponding to the determined functional failure level;
wherein the functional failure determination unit determines, without depending on a hardware component type and a number
of the plurality of hardware components, the functional failure level according to a combination of any number of hardware
components determined to include a failure and any number of hardware components determined to not include a failure, and

wherein the failsafe control unit specifies the failsafe operation corresponding to the functional failure level determined
by the functional failure determination unit, and performs the specified failsafe operation.

US Pat. No. 9,139,221

METHOD OF PRODUCING RACK OF ELECTRIC POWER STEERING DEVICE

HITACHI AUTOMOTIVE SYSTEM...

1. A method of producing a rack for use in an electric power steering device of a vehicle, comprising:
preparing a first bar piece that has first rack teeth adapted to be meshed with a first pinion directly driven by a steering
wheel, a second bar piece that has second rack teeth adapted to be meshed with a second pinion driven by a steering assist
electric motor and an intermediate piece that has one end to be welded to the first bar piece and the other end to be welded
to the second bar piece;

aligning the first bar piece, the intermediate piece and the second bar piece in order along a common axis;
carrying out a first process in which the first and second bar pieces are stationarily held while having a predetermined intersection
angle between the first rack teeth on the first bar piece and the second rack teeth on the second bar piece; and

carrying out a second process in which each of the first and second bar pieces and the intermediate piece are brought into
contact with each other at mutually facing ends and subjected to a relative rotation therebetween for friction welding, to
thereby join the first bar piece, the intermediate piece and the second bar piece together by the friction welding,

wherein the first process includes a step for fixing the first and second bar pieces to first and second pressing devices
in such a manner as to have a relative angular displacement therebetween, and

wherein the second process includes a step for rotating the intermediate piece at a given high speed about the common axis
relative to the fixed first and second bar pieces.

US Pat. No. 9,278,503

FRICTION STIR WELDING STRUCTURE AND POWER SEMICONDUCTOR DEVICE

Hitachi Automotive System...

1. A friction stir welding structure comprising:
first and second members formed into one piece by friction stir welding, wherein
a given section is formed along the friction stir weld section on at least one of the first and second members,
the first member and the second member are abutted together as a lap joint, and the abutted surface is friction stir welded,
the tensile strength S1 of the first member is set smaller than the tensile strength S2 of the second member, and

the relation between the thickness L1 of the given section of the first member and the weld depth D1 of the friction stir weld section is defined as: (2×S1)/(S1+S2)×L1

US Pat. No. 9,452,777

POWER-STEERING DEVICE

HITACHI AUTOMOTIVE SYSTEM...

1. A power steering device, comprising:
an input shaft rotated in response to a steering operation of a steering wheel;
an output shaft coupled to the input shaft through a torsion bar;
a power cylinder having a pair of hydraulic pressure chambers defined by a piston to generate a steering assist force based
on hydraulic pressures in the hydraulic pressure chambers;

a rotary valve that selectively supplies hydraulic fluid from an external hydraulic pressure source to the pair of hydraulic
pressure chambers in accordance with relative rotation of the input shaft and the output shaft;

a hollow motor arranged to surround at least an axial portion of the input shaft and control rotation of the input shaft based
on vehicle driving conditions; and

input-shaft-side and rotor-side engagement parts arranged between an outer circumference of the input shaft and an inner circumference
of the hollow motor so as to allow relative movement of the input shaft and a rotor of the hollow motor in an axis direction
but to restrict relative movement of the input shaft and the rotor of the hollow motor in a rotation direction.

US Pat. No. 9,285,000

DISC BRAKE

HITACHI AUTOMOTIVE SYSTEM...

1. A disc brake comprising:
a caliper main body configured to have a pad assembling space that is disposed across over a disc rotor and opens toward an
approximate middle thereof in a rotor radial direction and a connector part that is disposed to cross the pad assembling space
in a rotor axial direction;

a pair of brake pads configured to be disposed to be opposite to the disc rotor; and
a pad spring configured to be engaged with the connector part by a pair of claw portions facing each other, to be installed
on the caliper main body, and to bias the brake pads in a rotor rotational outlet direction and inward in the rotor radial
direction,

wherein the connector part is installed at a middle position of the pad assembling space in a rotor rotational direction,
and is provided with a hole portion formed to be offset in the rotor rotational direction with respect to a middle position
of the brake pads in the rotor rotational direction,

wherein the pad spring has a symmetrical shape with respect to the center in a longitudinal direction thereof, and
wherein the pad spring is configured such that at least one of the pair of claw portions is disposed in the hole portion,
the pair of claw portions are engaged with the connector part, and a position of the pad spring is defined relative to the
brake pads in a state in which the center of the pad spring in the longitudinal direction is offset in a rotor rotational
direction with respect to the center of the brake pads in the rotor rotational direction.

US Pat. No. 9,182,421

INERTIA SENSOR

Hitachi Automotive System...

1. A vibration type inertial sensor comprising:
two dead weights;
two sets of driving electrodes applying driving signals to the two dead weights, the signals for displacing the two dead weights
in anti-phase with each other along a first direction;

two sets of first electrodes detecting displacements of the respective two dead weights as electrostatic capacitance changes;
and

a first C/V converting unit converting the capacitance changes of the first electrodes into electrical signals, wherein
the first electrodes in a set whose electrostatic capacitance changes in a third direction when the two dead weights are displaced
in anti-phase in the first direction are electrically connected with each other, the first electrodes of the other set whose
electrostatic capacitance changes in a fourth direction opposite to the third direction when the two dead weights are displaced
in anti-phase in the first direction are electrically connected with each other, and the respective sets of the first electrodes
are connected with the first C/V converting unit.

US Pat. No. 9,168,947

POWER STEERING SYSTEM

Hitachi Automotive System...

1. A power steering system mounted in an engine room in a vehicle and providing a steering assist force to steered road wheels,
comprising:
a steering shaft to which a turning force from a steering wheel is transmitted;
a pinion shaft which is provided at the steering shaft and housed in a pinion shaft housing portion, the pinion shaft supported
by a pair of bearings in the pinion shaft housing portion;

a torque sensor which is provided at the steering shaft, has a coil in a sensor housing, and detects a steering torque generated
at the steering shaft;

a rack housing whose inside space communicates with an inside space of the sensor housing the rack housing forming a gear
housing part along with the pinion shaft housing portion;

a rack shaft which is provided movably in a shaft direction thereof in the rack housing and converts a turning motion of the
steering shaft to a shaft direction movement of the steered road wheels by engaging with the pinion shaft;

a motor housing whose inside space communicates with the inside space of the rack housing;
an electric motor which is provided in the motor housing, has a stator and a rotor and provides the steering assist force
to the pinion shaft or the rack shaft through a speed reducer;

an ECU housing which is formed integrally with the motor housing and whose inside space communicates with the inside space
of the motor housing, an inside space of the pinion shaft housing portion communicating with the sensor housing, the rack
housing, the motor housing, and the ECU housing;

a motor control unit which is housed in the ECU housing and has electronic elements that control drive of the electric motor
on the basis of the steering torque; and

a respiration valve which is provided at any of the sensor housing, the rack housing, and the motor housing and is located
at an upper side with respect to an upper end, in a vertical direction, of the ECU housing so as to open to space located
at an upper side with respect to the bearing that is the bearing positioned at an upper side, in the vertical direction, of
the pair of bearings in a state in which the power steering system is mounted in a vehicle body, the respiration valve having
a function by which air can pass through the housing at which it is provided and between an inside and an outside of the ECU
housing in a bidirectional direction so as to absorb change of expansion/contraction of the air in the ECU housing while suppressing
entry of water from the outside.

US Pat. No. 9,448,129

TORQUE SENSOR UNIT

HITACHI AUTOMOTIVE SYSTEM...

1. A torque sensor unit for detecting a torque applied to a rotating element, the rotating element having first and second
shaft members formed of a metal material and connected to each other through a torsion bar, the torque sensor unit comprising:
a sleeve formed of a metal material and including: an annular or arc-shaped sleeve body surrounding the first shaft member;
a fixing part provided on the sleeve body and fixing the sleeve body to the first shaft member; an axial position restricting
part provided on the sleeve body and having a flanged portion extending radially inwardly from the sleeve body, the flanged
portion having a support surface directed vertically upward during use of the torque sensor unit; and a radial position restricting
part provided on the sleeve body and extending in a direction of a rotation axis of the rotating element;

an annular magnet formed of a composite material of resin and magnetic materials, with different magnetic poles alternately
arranged in a circumferential direction, and surrounding the first shaft member, the magnet being placed on the support surface
and thereby restricted in position in the direction of the rotation axis of the rotating element while being restricted in
position in a radial direction by the radial position restricting part;

a filling material formed from a resin material having a smaller Young's modulus than that of the magnet and held in contact
with the magnet and the radial position restricting part;

a first yoke member formed of a magnetic material, fixed to the second shaft member so as to rotate together with the second
shaft member and including: a plurality of first claw portions facing the magnet; and a first annular portion connecting the
first claw portions;

a second yoke member formed of a magnetic material, fixed to the second shaft member so as to rotate together with the second
shaft member and including: a plurality of second claw portions circumferentially alternated with the first claw portions
and facing the magnet; and a second annular portion connecting the second claw portions; and

a magnetic sensor having a hall element to detect a change in magnetic field between the first and second yoke members and
generate an output signal such that the torque applied to the rotating element is detected based on the output signal from
the magnetic sensor.

US Pat. No. 9,281,732

SQUIRREL-CAGE ROTOR AND ROTATING ELECTRICAL MACHINE

Hitachi Automotive System...

1. A squirrel-cage rotor comprising:
a rotor core including in its circumferential direction a plurality of slots extending in an axial direction;
a plurality of conductor bars which is stored in each slot of the rotor core and whose both ends are projected from an axial
direction end surface of the rotor core; and

a pair of end rings arranged at the both ends of the rotor core and each having a plurality of fitting portions into which
the respective both ends of the conductor bars projecting from the axial direction end surface of the rotor core are fitted,

wherein in the conductor bar, among the cross-sectional shape in a plane perpendicular to the axial direction, the shape on
the rotor central axis side is a circular arc shape,

in the plane perpendicular to the axial direction, a gap is provided on the rotor central axis side of the fitting portion
fitted with the conductor bar, a curved portion is provided on the rotor central axis side of the gap, and

the curved portion of the gap includes a circular arc having a radius larger than a radius of the circular arc on the rotor
central axis side of the conductor bar.

US Pat. No. 9,215,823

ELECTRONIC CONTROL APPARATUS

HITACHI AUTOMOTIVE SYSTEM...

1. An electronic control apparatus comprising:
a busbar member to be connected with a hydraulic unit, the busbar member including
a base portion,
a surrounding wall which defines a receiving portion formed between the hydraulic unit and the base portion and which is arranged
to receive a control section to control the hydraulic unit,

a connector supporting portion which is formed integrally with the base portion, which projects from the base portion in a
form of a cantilever and which is arranged to support a connector, and

a bulging portion which is arranged to receive a component of the control section, which projects from the connector supporting
portion and which is connected with the surrounding wall,

wherein, in an installed state in which the electronic control apparatus is installed in a vehicle, a positive connection
terminal is disposed in an upper portion of the connector, a noise reducing component is provided in the bulging portion,
and the bulging portion is located above the connector.

US Pat. No. 9,123,188

ACCELERATION SENSOR FAULT DETECTION APPARATUS

Hitachi Automotive System...

1. An acceleration detection apparatus installed in a vehicle comprising:
a plurality of acceleration sensors;
a stoppage-time diagnosis unit; and
a running-time fault diagnosis unit, wherein
the stoppage-time diagnosis unit is configured to detect faults in the acceleration sensors when the vehicle is stopped, and
the running-time diagnosis unit is configured to detect faults in the acceleration sensors when the vehicle is running,
the stoppage-time diagnosis unit is also configured to detect faults in the running-time diagnosis unit when the vehicle is
running.

US Pat. No. 9,281,549

ELECTRICITY STORAGE MODULE

HITACHI AUTOMOTIVE SYSTEM...

1. An electricity storage module, comprising:
an electric storage unit block that is constituted by arraying a plurality of prismatic electric storage units through a holding
member; and

a cooling channel that is formed between the electric storage unit and the holding member, through which a cooling medium
for cooling the electric storage unit flows, wherein:

a central part of a cooling medium inlet opening of the cooling channel is covered so that a flow speed of a cooling medium
after flowing into the cooling channel is higher than a flow speed of a cooling medium before flowing into the cooling channel,
and

a pair of guiding members that deflects a flow of the cooling medium to a direction to a center of the electric storage unit
is provided on a most upstream side of the cooling channel, the pair of guiding members being configured to slope toward a
center of the cooling channel and to concentrate the flow of the cooling medium to the center of the cooling channel.

US Pat. No. 9,284,891

CONTROL APPARATUS AND CONTROL METHOD FOR VARIABLE VALVE MECHANISM

Hitachi Automotive System...

1. A control apparatus for a variable valve mechanism that varies a valve characteristic of an engine valve, comprising:
a feedforward manipulated variable calculating unit that calculates a feedforward manipulated variable according to a dynamic
characteristic of the variable valve mechanism;

an actual manipulated variable calculating unit that calculates an actual manipulated variable that can be output by the variable
valve mechanism;

a corrective manipulated variable calculating unit that calculates a corrective manipulated variable for correcting a difference
between the calculated feedforward manipulated variable and the actual manipulated variable while changing the valve characteristic
of the engine valve by controlling the variable valve mechanism; and

a feedforward manipulated variable correcting unit that corrects the feedforward manipulated variable according to the corrective
manipulated variable after the corrective manipulated variable is calculated;

wherein the corrective manipulated variable calculating unit calculates, as the corrective manipulated variable, an integrated
value of saturating amount obtained from the actual and feedforward manipulated variables when the feedforward manipulated
variable differs in a particular way from the actual manipulated variable.

US Pat. No. 9,281,724

ROTATING ELECTRICAL MACHINE INCLUDING CONCENTRATED SINGLE-LAYER WINDING COIL

Hitachi Automotive System...

1. A rotating electrical machine, comprising:
a stator that includes a plurality of core segments disposed in a circular formation, an insulating bobbin mounted at each
of the core segments and a concentrated winding coil formed by winding wire with a rectangular cross section at the insulating
bobbin; and

a rotor, rotatably disposed so as to rotate freely relative to the stator, wherein:
each core segment includes a yoke and a tooth, formed so as to project out from the yoke, at which the insulating bobbin is
mounted;

the concentrated winding coil includes a single-layer coil, corresponding to one layer, wound in a first turn advancing mode
with the wire forming sequential coil turns starting from one end of the insulating bobbin toward another end of the insulating
bobbin and another single-layer coil, corresponding to one layer, wound in a second turn advancing mode with the wire forming
turns starting from the other end of the insulating bobbin toward the one end of the insulating bobbin, with the single-layer
coil and the other single-layer coil layered alternately to each other;

the insulating bobbin includes a winding portion where the concentrated winding coil is formed, collars each formed at one
of two ends of the winding portion and at least one projecting portion configured to disallow misalignment at a turn changeover
start area in the first turn advancing mode and the second turn advancing mode;

the projecting portion is formed so that a front end of the projecting portion takes a position between an outer side surface
position of the single-layer coil constituting an outermost layer in the concentrated winding coil made up with a plurality
of layers and an inner side surface position of the single-layer coil constituting the outermost layer; and

the projecting portion is formed at a plurality of locations so that a plurality of projecting portions are present side-by-side
between the collars, and a stage with a height thereof smaller than a thickness of the wire measured along a layering direction
is formed between each collar and the projecting portion next to the collar and between the projecting portions present side-by-side.


US Pat. No. 9,212,892

STEERING ANGLE SENSOR

HITACHI AUTOMOTIVE SYSTEM...

1. A steering angle sensor for a vehicle, the steering angle sensor comprising:
a steering angle sensor housing disposed on a steering shaft that is rotated in accordance with an operation of a steering
wheel;

a first gear rotatably disposed in the steering angle sensor housing, the first gear including an annular body portion formed
to surround the steering shaft, a plurality of teeth formed on an outer peripheral side of the body portion, and an engaging
portion formed in the body portion, the first gear having an inner peripheral surface configured to be spaced from the steering
shaft at a predetermined distance in a radial direction of the steering shaft;

a rotation transmitting portion disposed on the steering shaft so as to make a unitary rotation with the steering shaft, the
rotation transmitting portion having a counterpart engaging portion engaged with the engaging portion of the first gear to
rotationally drive the first gear in accordance with rotation of the steering shaft;

a second gear rotatably disposed in the steering angle sensor housing, the second gear including a magnetic member having
N pole and S pole disposed in a circumferential direction of the magnetic member at predetermined intervals, and a plurality
of teeth formed on an outer peripheral side of the second gear to mesh with the plurality of teeth of the first gear;

a third gear rotatably disposed in the steering angle sensor housing, the third gear including a magnetic member having N
pole and S pole disposed in a circumferential direction of the magnetic member at predetermined intervals, and a plurality
of teeth formed on an outer peripheral side of the third gear to mesh with the plurality of teeth of the first gear or the
plurality of teeth of the second gear in which a number of the plurality of teeth of the third gear is set to be indivisible
by a number of the plurality of teeth of the second gear to provide a desired speed reducing ratio between the second gear
and the third gear;

a first magnetoresistance effect element that detects a first rotation angle as a rotation angle of the second gear by detecting
a change of magnetic field generated by the magnetic member of the second gear to determine a change of resistance value of
a resistance element of the first magnetoresistance effect element;

a second magnetoresistance effect element that detects a second rotation angle as a rotation angle of the third gear by detecting
a change of magnetic field generated by the magnetic member of the third gear to determine a change of resistance value of
a resistance element of the second magnetoresistance effect element; and

a biasing member disposed in the steering angle sensor housing to bias the first gear toward the second gear so as to reduce
a backlash between the first gear and the second gear,

wherein the first rotation angle and the second rotation angle are combined to determine an absolute steering angle indicative
of an amount of rotation of the steering wheel when the steering wheel is rotated from a neutral position in which a steerable
road wheel is oriented to a straight ahead direction of the vehicle.

US Pat. No. 9,510,487

POWER CONVERSION APPARATUS

Hitachi Automotive System...

1. A power conversion apparatus, comprising:
a power semiconductor module for converting direct-current power into alternating-current power;
a first flow channel forming body for housing the power semiconductor module; and
a cover for fixing the power semiconductor module to the first flow channel forming body, wherein:
the power semiconductor module includes a power semiconductor element, main terminals electrically connected to the power
semiconductor element, and a case for housing the power semiconductor element;

the cover has a recessed portion and an opening provided in a bottom surface portion of the recessed portion;
the power semiconductor module is placed to be fitted into the recessed portion;
the power semiconductor module is fixed to the cover so that the main terminals pass through the opening; and
the case and an inner wall of the recessed portion have an airtight structure.

US Pat. No. 9,314,835

POWER STEERING APPARATUS AND METHOD OF MANUFACTURING POWER STEERING APPARATUS

HITACHI AUTOMOTIVE SYSTEM...

1. A power steering apparatus comprising:
a wheel turning shaft arranged to move in an axial direction in response to rotation of a steering wheel to steer a steered
wheel;

a housing including a wheel turning shaft housing portion accommodating the wheel turning shaft movably in the axial direction,
and a reduction mechanism housing portion disposed at an intermediate position in the axial direction of the wheel turning
shaft housing portion so as to surround the wheel turning shaft;

a wheel turning shaft-side ball screw groove provided on an outer periphery of the wheel turning shaft in a spiral groove
configuration;

a nut which is a rotary element provided in the reduction mechanism housing portion, the rotary element being formed annularly
so as to surround the wheel turning shaft by a die forging process in which, when an axis of rotation of the rotary element
is defined as a first reference axis, a die used for the die forging process is released in a direction along a direction
of the first reference axis;

a bearing provided between an inner wall of the reduction mechanism housing portion and the nut in a radial direction radial
to a central axis defined by the axis of rotation of the nut, the bearing configured to surround the nut to rotatably support
the nut relative to the housing;

a nut-side ball screw groove provided on an inner periphery of the nut in a spiral groove configuration to configure a ball
recirculation groove in combination with the wheel turning shaft-side ball screw groove;

a plurality of balls provided in the ball recirculation groove;
an output pulley abutting surface provided on the nut at a position closer to the ball recirculation groove than the bearing
in the direction of the first reference axis, the output pulley abutting surface being formed by a surface substantially perpendicular
to the first reference axis;

a circular cylindrical output pulley secured to the nut in a state where the output pulley is positioned relative to the nut
in the direction of the first reference axis by abutting against the output pulley abutting surface, the output pulley overlapping
a region of the ball recirculation groove where the plurality of balls recirculate but not overlapping the bearing in the
direction of the first reference axis;

a circular cylindrical input pulley disposed such that a second reference axis defined by an axis of rotation of the input
pulley is offset from the first reference axis in the radial direction;

a transmitting member provided to extend over the output pulley and the input pulley to transmit rotation of the input pulley
to the output pulley;

an electric motor arranged to rotationally drive the input pulley to rotationally drive the nut through the transmitting member
and the output pulley, so that rotation of the nut is converted into axial motion of the wheel turning shaft, thereby applying
steering force to the wheel turning shaft; and

a recirculation member provided to connect one end and other end of the ball recirculation groove so that the plurality of
balls are recirculatable in either direction between the one end and other end of the ball recirculation groove.

US Pat. No. 9,279,827

SENSOR MODULE AND SENSOR SYSTEM

Hitachi Automotive System...

1. A sensor module characterized by comprising:
a first detection element that detects acceleration from outside;
an acceleration signal processing unit that processes an acceleration signal detected by the first detection element;
a first filter that removes a noise from the signal processed by the acceleration signal processing unit;
a second detection element that detects another physical quantity than acceleration;
a first physical quantity signal processing unit that processes a physical quantity signal detected by the second detection
element;

a second filter that removes a noise from the signal processed by the first physical quantity signal processing unit;
a signal component analysis unit that analyzes a frequency component of the signal processed by the acceleration signal processing
unit, determines whether or not a physical quantity corresponding to a frequency split component representing a difference
between a frequency in a drive direction of the second detection element and a frequency in a detection direction of the second
detection element is applied, and, if determining that the physical quantity corresponding to the frequency split component
is applied, outputs an output stop signal;

a first output control unit that stops output of the signal output from the first filter when the output stop signal is output
from the signal component analysis unit; and

a second output control unit that stops output of the signal output from the second filter when the output stop signal is
output from the signal component analysis unit.

US Pat. No. 9,526,194

POWER CONVERSION DEVICE WITH FLOW CONDUITS FOR COOLANT

Hitachi Automotive System...

1. A power conversion device, comprising:
a power semiconductor module that converts DC current to AC current;
a capacitor that smooths DC power;
a first flow conduit defining member that defines a first flow conduit in which coolant flows, and that also defines a first
storage space in which the power semiconductor module is housed;

a second flow conduit defining member that defines a second flow conduit in which coolant flows, and that also defines a second
storage space in which the capacitor is housed;

a flow conduit connection portion that connects the first flow conduit and the second flow conduit; and
a circuit board comprising a drive circuit portion that drives the power semiconductor module, wherein:
a first space, in which a vehicle component that is different from the power conversion device is disposed, is defined in
a space to a side of the first flow conduit defining member and below the second flow conduit defining member,

the circuit board is defined up to a second space, that is a space above the first flow conduit defining member, and
the flow conduit connection portion connects from the lower surface of the second flow conduit defining member to the first
flow conduit defining member via the first space.

US Pat. No. 9,596,782

POWER CONVERTER WITH COOLING BOARD

Hitachi Automotive System...

1. A power converter comprising:
a housing having a storage space formed in an interior thereof;
a capacitor module placed in the storage space;
a DC terminal provided in the housing connected to the capacitor module;
a power module electrically connected to the capacitor module;
an AC terminal connected to the power module and provided in the housing;
an AC connection bus bar configured to connect the AC terminal and the power module; and
a cooling board which includes a cooling panel formed of a metal and embedded in a synthetic resin, wherein the cooling panel
thermally connects capacitor terminals of the capacitor module and the housing and/or the AC connection bus bar and the housing.

US Pat. No. 9,505,431

ROTATION DETECTION DEVICE AND POWER STEERING DEVICE

HITACHI AUTOMOTIVE SYSTEM...

1. A rotation detecting device, comprising:
first and second members that are rotatable relative to each other around a rotation axis;
a magnetic member fixed to the first member, the magnetic member having N-poles and S-poles alternately arranged around the
rotation axis;

at least one detecting member arranged to face the magnetic member, the at least one detecting member being constructed of
a magnetic material;

first and second holding members fixed to the second member for holding the at least one detecting member, the holding members
being constructed of thermoplastic resin and are welded and fixed to each other, wherein the at least one detecting member
is disposed between the first and second holding members to prevent relative contact between the at least one detecting member
and the second member; and

a magnetic sensor that detects a relative rotation between the first and second members by sensing a change of magnetic field
in the at least one detecting member, wherein the change of magnetic field is caused by a relative rotation between the magnetic
member and the at least one detecting member due to the relative rotation between the first and second members.

US Pat. No. 9,051,001

POWER STEERING APPARATUS AND SPEED REDUCER FOR POWER STEERING

HITACHI AUTOMOTIVE SYSTEM...

1. An apparatus for power steering of a vehicle, comprising:
a worm gear arrangement including a worm shaft extending axially from a first shaft end to a second shaft end, and a worm
wheel engaged with the worm shaft;

a bearing to support the worm shaft rotatably at the second shaft end;
a gear housing structure enclosing the worm gear arrangement, and defining a holder receiving portion;
a holder member arranged to hold the bearing, and fit movably radially in the holder receiving portion to move the worm shaft
through the bearing to adjust a backlash between the worm shaft and the worm wheel;

a biasing mechanism to urge at least one of the holder member and the bearing in a nearing direction to reduce the backlash
with a biasing elastic force; and

a buffer member which is arranged to be compressed by the holder member when the holder member is moved in the nearing direction
and a receding direction opposite to the nearing direction, to buffer collision of the holder member against an inside wall
surface defining the holder receiving portion, the buffer member being set to have an elastic force smaller than the biasing
elastic force,

wherein the gear housing structure includes a gear housing enclosing the worm gear arrangement, and an outer holder defining
the holder receiving portion, and wherein the outer holder includes a cylindrical wall portion and a bottom portion which
closes one end of the cylindrical portion and which is formed with a fulcrum; and the holder member includes a fulcrum engaging
portion engaging with the fulcrum of the outer holder and enabling the holder member to swing in the outer holder about the
fulcrum.

US Pat. No. 9,750,147

POWER CONVERTER

Hitachi Automotive System...

1. A power converter comprising:
a power semiconductor module that converts DC current into AC current;
a casing that forms a housing space for housing the power semiconductor module;
an AC relay bus bar that is connected to an AC terminal of the power semiconductor module by weld connection; and
an AC terminal block that is connected to an AC terminal of a motor,
wherein the AC relay bus bar is supported by the casing through an insulating member,
wherein the AC terminal block is connected to the AC relay bus bar and supported by the casing,
wherein the AC relay bus bar forms a first through hole, and
wherein the AC terminal block is connected to the AC relay bus bar by a first fastening member passing through the first through
hole.

US Pat. No. 9,511,797

INTEGRAL POWER STEERING DEVICE

HITACHI AUTOMOTIVE SYSTEM...

1. An integral power steering device comprising:
a housing constructed by a gear housing formed of a metallic material and configured to be closed at one axial end and to
have an opening at the other axial end, and a valve housing formed of a metallic material and configured to close the opening
end of the gear housing and to have a shaft insertion hole axially formed through the valve housing;

a steering shaft adapted to be linked at one end to a steering wheel, the other end of the steering shaft being configured
to be inserted into the valve housing so as to face an internal space of the gear housing;

a piston linked to the other end of the steering shaft and configured to partition the internal space of the gear housing
into a first pressure chamber and a second pressure chamber;

a first motion converter interposed between the steering shaft and the piston for converting rotary motion of the steering
shaft into axial movement of the piston;

a second motion converter configured to be meshed-engagement with a toothed portion formed on an outer periphery of the piston
for converting the axial movement of the piston into rotary motion for turning;

a rotary valve provided to be linked to the steering shaft in the shaft insertion hole and adapted to selectively introduce
working oil supplied from an external hydraulic pressure source to either of the first pressure chamber and the second pressure
chamber depending on a rotation direction of the steering shaft;

a first valve disposed in the valve housing and configured to discharge hydraulic pressure in the second pressure chamber
into the first pressure chamber when the piston has reached a first predetermined stroke position at which a volume of the
first pressure chamber becomes a minimum permissible capacity by a movement of the piston; and

a second valve disposed in the gear housing and configured to discharge hydraulic pressure in the first pressure chamber into
the second pressure chamber when the piston has reached a second predetermined stroke position at which a volume of the second
pressure chamber becomes a minimum permissible capacity by a movement of the piston,

wherein at least the first valve comprises:
a first valve accommodation hole formed by machining the valve housing itself;
a first valve seat portion disposed in the first valve accommodation hole and arranged on a side of the first pressure chamber
and having a first pin insertion hole axially formed through the first valve seat portion;

a first valve element arranged to be opposed to the first valve seat portion and installed to axially slide in the first valve
accommodation hole and configured to cut off a movement of working oil from the second pressure chamber to the first pressure
chamber with the first valve element seated on the first valve seat portion;

a first pin portion integrally connected to the first valve element and configured to face an internal space of the first
pressure chamber through the first pin insertion hole and to apply a moving force to the first valve element by pushing the
first pin portion by the piston immediately when the first predetermined stroke position of the piston has been reached; and

a first biasing member configured to bias the first valve element toward the first valve seat portion.

US Pat. No. 9,736,952

VEHICLE-MOUNTED ELECTRONIC MODULE

Hitachi Automotive System...

1. An on-vehicle electronic module comprising:
a circuit board including a mounting region and a terminal forming region, an electronic component being mounted in the mounting
region, a board terminal being formed in the terminal forming region; and

a case housing the mounting region of the circuit board,
wherein the case includes a case member integrally formed with a wall surface and a male connector housing, the wall surface
forming a case internal space that houses the mounting region, a female connector being mounted to the male connector housing,

the circuit board penetrates the case member such that the terminal forming region is exposed to a housing space side of the
male connector housing,

the circuit board integrally includes, between the mounting region and the terminal forming region, an insulating resin member
that is integrally fixed to the circuit board and fixes the circuit board to the case member,

the case member is integrally formed with the wall surface and the male connector housing, the wall surface forming the case
internal space that houses the mounting region, the female connector being mounted to the male connector housing,

the case member includes a partition wall that separates the case internal space and a housing space of the male connector
housing from each other, and the insulating resin member is fixed to the partition wall;

wherein a slit is formed between board terminals in the terminal forming region from an end surface of the circuit board,
and

a rivet-shaped insulating resin is disposed while filling the slit, the rivet-shaped insulating resin including a head portion
wider than a slit width on each of both surfaces of the circuit board.

US Pat. No. 9,457,836

POWER STEERING APPARATUS

HITACHI AUTOMOTIVE SYSTEM...

1. A power steering apparatus comprising:
a steering mechanism transmitting a steering operation of a steering wheel to a steered wheel;
an electric motor applying steering force to the steering mechanism;
a torque sensor provided in the steering mechanism and detecting steering torque of the steering mechanism;
a controller configured to
calculate and output a command signal to the electric motor in accordance with the steering torque, in response to a selected
one of a first characteristic which is a characteristic of the command signal with respect to the steering torque and a second
characteristic which is a characteristic differing from the first characteristic;

store the first characteristic and the second characteristic;
switch between the first characteristic and the second characteristic;
calculate, when switching between the first characteristic and the second characteristic is to be performed, an interpolation
characteristic intermediate between the first characteristic and the second characteristic so that one of the first and second
characteristics that is used before switching gradually approaches another of the first and second characteristics that is
to be used after the switching;

variably control a transition duration for transitioning from the one of the first characteristic and the second characteristic
to the other when switching between the first characteristic and the second characteristic in accordance with the steering
torque;

calculate the command signal on a basis of the one of the first or second characteristic to which switching has been made,
and

calculate and output the command signal to the electric motor, based on the interpolation characteristic, during the transition
duration,

wherein the electric motor applies the steering force in response to the command signal received from the controller.

US Pat. No. 9,345,168

POWER CONVERSION APPARATUS

Hitachi Automotive System...

1. A power conversion apparatus comprising:
a first power semiconductor module including a power semiconductor element for converting a direct current to an alternating
current;

a capacitor module including a capacitor element for smoothing the direct current; and
a flow path forming body for forming a flow path through which a cooling refrigerant flows,
wherein the flow path forming body has a first flow path forming body that forms a first flow path part for cooling the first
power semiconductor module, and a second flow path forming body that forms a second flow path part for cooling the capacitor
module,

wherein the first flow path forming body is provided on a side portion of the second flow path forming body and is integrally
formed with the second flow path forming body,

wherein the second flow path forming body forms a housing space for housing the capacitor module above the second flow path
part,

wherein the first flow path part is formed at a position facing the side wall that forms the housing space, and
wherein the first power semiconductor module is inserted into the first flow path part.

US Pat. No. 9,717,167

POWER CONVERTER INCLUDING CONTROL CIRCUIT SUBSTRATE ON SIDE SURFACE PART

Hitachi Automotive System...

1. A power converter comprising:
a power semiconductor module having a power semiconductor element configured to convert a DC current to an AC current;
a passage forming body configured to form a passage space;
a driver circuit substrate configured to drive the power semiconductor element; and
a control circuit substrate configured to control the driver circuit substrate, wherein
the passage forming body has a first surface and a side surface part formed in parallel to a direction perpendicular to the
first surface,

the driver circuit substrate is disposed at a position opposite to the first surface, and
the control circuit substrate is disposed on the side surface part such that a projection of the control circuit substrate
matches a projection of the passage space when a projection is made from a direction perpendicular to the side surface part
of the passage forming body.

US Pat. No. 9,346,485

POWER STEERING APPARATUS AND REDUCTION MECHANISM FOR POWER STEERING

HITACHI AUTOMOTIVE SYSTEM...

1. A power steering apparatus comprising:
a wheel turning shaft configured to turn a wheel to be steered by being moved in an axial direction of the wheel turning shaft
according to a rotation of a steering wheel;

a ball screw mechanism configured to cause the wheel turning shaft to move in the axial direction of the wheel turning shaft;
and

an electric motor configured to provide a rotational force to the wheel turning shaft via the ball screw mechanism,
wherein the ball screw mechanism includes
a wheel turning shaft ball screw groove formed on an outer circumferential surface of the wheel turning shaft and shaped into
a spiral groove,

a nut disposed to surround the wheel turning shaft and to be rotatable relative to the wheel turning shaft, the nut having
a rotational axis, the nut including one end and an opposite end in a direction of the rotational axis of the nut,

a nut ball screw groove formed on an inner circumferential surface of the nut and shaped into a spiral groove, the nut ball
screw groove being configured to define a ball circulation groove together with the wheel turning shaft ball screw groove,

a plurality of balls disposed in the ball circulation groove,
a circulation member disposed on an outer side of the nut in a radial direction relative to the rotational axis of the nut,
the circulation member being configured to connect one end and an opposite end of the ball circulation groove so that the
plurality of balls can circulate from the one end to the opposite end of the ball circulation groove,

a housing formed to contain at least one of the ends of the nut which is spaced apart from the circulation member in an axial
direction of the nut,

a bearing disposed on the one end of the nut which is spaced apart from the circulation member in the axial direction of the
nut between the nut and the housing and formed to surround the nut, the bearing being configured to rotatably support the
nut in the housing, and

a circular fixation member formed to surround the wheel turning shaft and provided with an abutment surface in abutment with
an end surface of the bearing in the axial direction of the nut, the fixation member being configured to fix the bearing to
the housing by being fixed in the housing with the abutment surface of the circular fixation member being in abutment with
the end surface of the bearing in the axial direction of the nut, the fixation member configured to be provided around the
nut by being moved from the opposite end of the nut to the one end of the nut in the axial direction of the nut at a time
of assembling the power steering apparatus,

wherein the plurality of balls move in the ball circulation groove according to a rotation of the nut relative to the wheel
turning shaft, thereby causing the wheel turning shaft to move relative to the nut in the axial direction of the wheel turning
shaft,

wherein the electric motor is arranged to provide a rotational force to the nut so that the nut rotates relative to the wheel
turning shaft,

wherein the abutment surface of the fixation member is formed on at least an inner side of the fixation member in a radial
direction of the fixation member,

wherein the fixation member includes a cutout portion provided on the inner side of the fixation member in the radial direction
of the fixation member, and formed to prevent the fixation member from interfering with the circulation member when the fixation
member is inserted in the housing, and

wherein the cutout portion is formed in such a manner that a distance from the rotational axis of the nut to the cutout portion
in the radial direction of the fixation member is longer than a distance from the rotational axis of the nut to the abutment
surface in the radial direction of the fixation member.

US Pat. No. 9,505,433

POWER STEERING APPARATUS AND BACKLASH ADJUSTMENT MECHANISM THEREFOR

HITACHI AUTOMOTIVE SYSTEM...

1. A power steering apparatus, comprising:
a steering mechanism that has a steering shaft connected to a steering wheel and transmits a steering force of the steering
wheel to steerable wheels;

an electric motor that applies a rotational force as a steering assist force to the steering mechanism;
a reduction gear mechanism arranged between the steering mechanism and the electric motor and including: a worm gear that
has a worm shaft coupled at one end portion thereof to the electric motor and a worm wheel engaged with the worm shaft and
coupled to the steering mechanism and transmits the rotational force of the electric motor to the steering mechanism; and
a gear housing that has a shaft accommodation part in which the worm shaft is accommodated and a wheel accommodation part
in which the worm wheel is accommodated:

a ball bearing mounted to the other end portion of the worm shaft within the shaft accommodation part of the gear housing
and having an inner race, an outer race and a plurality of balls to rotatably support the worm shaft;

a slider movable in a movement direction substantially perpendicular to a rotation axis of the worm shaft;
a holder member arranged in the gear housing and having a bearing accommodation part in which the ball bearing is accommodated;
a first sliding surface provided on an outer circumferential side of the holder member; and
a second sliding surface provided on the slider in an inclined shape with respect to the movement direction of the slider
and brought in sliding contact with the first sliding surface such that forward movement of the slider in the movement direction
causes relative sliding of the first and second sliding surfaces to bias the worm shaft in an engagement direction that brings
the rotation axis of the worm shaft closer to a rotation axis of the worm wheel,

wherein the slider is arranged to move circumferentially about the rotation axis of the worm shaft.

US Pat. No. 9,487,230

POWER STEERING DEVICE, AND CONTROL DEVICE USED FOR SAME

HITACHI AUTOMOTIVE SYSTEM...

1. A power steering device comprising:
a steering mechanism formed by an input shaft that rotates according to a steering operation of a steering wheel, an output
shaft that is connected to the input shaft through a torsion bar and a conversion mechanism that converts a rotation of the
output shaft to a steered movement of a steered road wheel;

a first rotation angle sensor detecting a rotation angle of the input shaft or an input shaft rotation angle that is a relative
rotation angle of the input shaft to the output shaft and outputting the rotation angle or the input shaft rotation angle
as an input shaft rotation angle signal;

a second rotation angle sensor detecting a rotation angle of the output shaft and outputting the rotation angle as an output
shaft rotation angle signal;

an electric motor providing a steering assist force to the steering mechanism; and
an electronic control unit controlling drive of the electric motor according to a vehicle operating condition, and
the electronic control unit having;
a command current calculating section calculating a motor command current that is a command current to the electric motor;
a static friction correction value calculating section calculating a static friction correction value that, when the input
shaft rotation angle signal changes so as to increase toward one direction of right and left steering directions, increases
according to a change amount of the input shaft rotation angle signal, and when the input shaft rotation angle signal changes
so as to increase toward the other direction of the right and left steering directions, decreases according to a change amount
of the input shaft rotation angle signal;

a kinetic friction correction value calculating section calculating a kinetic friction correction value that, when the output
shaft rotation angle signal changes so as to increase toward the one direction, increases according to a change amount of
the output shaft rotation angle signal, and when the output shaft rotation angle signal changes so as to increase toward the
other direction, decreases according to a change amount of the output shaft rotation angle signal, and the kinetic friction
correction value being set to a smaller value than the static friction correction value;

a current correction value calculating section calculating a command current correction value that is a difference between
the static friction correction value and the kinetic friction correction value and has a maximum value and a minimum value;
and

a command current correcting section correcting the motor command current so that when the command current correction value
is greater than a medium value between the maximum value and the minimum value, the steering assist force to the one direction
is increased, and so that when the command current correction value is smaller than the medium value, the steering assist
force to the other direction is increased.

US Pat. No. 9,781,849

ELECTRONIC CONTROL DEVICE

Hitachi Automotive System...

1. An electronic control device, comprising:
a housing having a plurality of housing members joined together to define therein an inner space;
a circuit board accommodated in the inner space of the housing and mounting thereon various electronic components; and
a connector attached to one end of the circuit board,
wherein at least one of the housing members includes an upper step portion covering the connector, a lower step portion covering
the circuit board and an inclined wall portion connecting the upper and lower step portions, the inclined wall portion having
a housing vent hole formed therethrough in a thickness direction of the inclined wall portion, the housing vent hole being
inclined relative to the upper and lower step portions and the circuit board;

wherein the electronic control device comprises a protection wall arranged on the inclined wall portion and having a wall
surface covering an outer opening of the housing vent hole, with a gap left between the wall surface of the protection wall
and the outer opening of the housing vent hole and communicating with the housing vent hole, the protection wall having a
closed connection at upper and lower sides thereof to the inclined wall portion and defining protection-wall vent holes at
both sides in a horizontal direction thereof, each of the protection-wall vent holes extending along the wall surface of the
protection wall from the gap to the outside in a radial direction of the housing vent hole and being open to the outside;

wherein the electronic control device further comprises an air-permeable waterproof membrane fixed to an inner opening of
the housing vent hole, whereby there is a vent passage defined between the air-permeable waterproof membrane and each of the
protection-wall vent holes such that the vent passage has a bent part from the housing vent hole to the gap so as to be in
communication with the protection-wall vent holes; and

wherein a relational expression of tan ?2>tan ?1 is satisfied where ?1 is an angle between an entering water S flowing in the vent passage through the protection-wall vent hole to the inside of
the housing vent hole and the inner opening of the housing vent hole; W is an opening width of the inner opening in a direction
perpendicular to two vertical lines intersecting the inner opening of the housing vent hole at right angles from the entering
water S; D is an axial length of the housing vent hole; and tan ?2 is a ratio of D/W.

US Pat. No. 9,591,789

POWER SEMICONDUCTOR MODULE AND POWER MODULE

Hitachi Automotive System...

1. A power semiconductor module comprising: a semiconductor device;
a conductor plate having a first surface on which the semiconductor device is mounted;
a resin sealer that covers a side portion of the conductor plate and exposes at least part of the a second surface of the
conductor plate that faces away from the first surface; and

a spray coated film provided on an outer surface of the resin sealer and the at least part of the second surface of the conductor
plate that is exposed through the resin sealer, and

a recess is formed in the outer surface of the resin sealer, and the planar size of the recess is greater than the planar
size of each flat portion that forms the spray coated film;

wherein the spray coated film is continuously disposed on the outer surface of the resin sealer, in the recess, and on the
at least part of the second surface of the conductor plate that is exposed through the resin sealer, without interruption.

US Pat. No. 9,540,041

POWER STEERING APPARATUS AND METHOD FOR ASSEMBLING POWER STEERING APPARATUS

HITACHI AUTOMOTIVE SYSTEM...

12. A method for assembling a power steering apparatus, the power steering apparatus comprising:
a steering mechanism including
a steering shaft including an input shaft configured to rotate according to a steering operation performed on a steering wheel,
and an output shaft connected to the input shaft via a torsion bar and configured in such a manner that a rotation of the
input shaft is transmitted to the output shaft, and

a conversion mechanism configured to convert a rotation of the output shaft into a turning operation of a steering target
wheel;

a housing including
a first housing including a first opening portion that is open to an opposite side in an axial direction assuming that the
axial direction is a direction along a rotational axis of the steering shaft, and one side in the axial direction is an input
shaft side corresponding to the input shaft of the steering shaft while the opposite side in the axial direction is an output
shaft side corresponding to the output shaft of the steering shaft, and

a second housing including a second opening portion that is open to the one side in the axial direction so as to close the
first opening portion,

the housing being configured to rotatably support the steering shaft;
a torque sensor container portion provided in the first housing;
a connector insertion hole provided in the first housing in a radial direction of the rotational axis, and formed in such
a manner that one side in the radial direction is open to the torque sensor container portion while an opposite side in the
radial direction is open to an outer circumferential side of the first housing;

a magnetic member disposed on one of the input shaft side and the output shaft side concentrically with the rotational axis
of the steering shaft, and including an N pole and an S pole alternatively arranged in a circumferential direction, assuming
that the circumferential direction is a direction around the rotational axis of the steering shaft;

a first yoke member disposed on the other of the input shaft side and the output shaft side, formed from a magnetic material,
located concentrically with the rotational axis of the steering shaft, and including first claw portions that are a plurality
of plate members disposed so as to face the magnetic member and a cylindrically formed first cylindrical portion connecting
the first claw portions to one another;

a second yoke disposed on the other of the input shaft side and the output shaft side, formed from a magnetic material, located
concentrically with the rotational axis of the steering shaft, including second claw portions that are a plurality of plate
members disposed so as to face the magnetic member and a cylindrically formed second cylindrical portion connecting the second
claw portions to one another, and arranged in such a manner that the respective second claw portions are alternatively placed
between respective claw portions of the first claw portions and the second cylindrical portion is located on an inner circumferential
side of the first cylindrical portion while the second cylindrical portion and the first cylindrical portion are spaced apart
from each other in the radial direction;

a first magnetism collection ring overlapping the first cylindrical portion in the axial direction, disposed between the first
cylindrical portion and the second cylindrical portion in the radial direction, formed into a circular arc shape from a magnetic
material, and configured to generate a magnetic field therein by receiving a magnetic field generated at the first cylindrical
portion;

a second magnetism collection ring overlapping the second cylindrical portion in the axial direction, disposed between the
second cylindrical portion and the first magnetism collection ring in the radial direction, formed into a circular arc shape
from a magnetic material, and configured to generate a magnetic field therein by receiving a magnetic field generated at the
second cylindrical portion;

a connector;
a harness provided at the connector and configured to transmit an electric signal to a controller;
a magnetic sensor serving as a sensor member, disposed in the connector so as to protrude within the torque sensor container
portion toward a first opening portion side, including a Hall element configured to detect a change in a magnetic field between
the first and second magnetism collection rings that change their respective internal magnetic fields by being affected by
magnetic fields of the first and second cylindrical portions that change according to a change in a relative angle between
the magnetic member and the first and second claw portions that is caused by a torsion of the torsion bar, and configured
to output the change in the magnetic field to the controller as the electric signal; and

an electric motor configured to be driven and controlled based on a motor control signal calculated by the controller based
on the change in the magnetic field to provide an operation force to the steering mechanism,

the method for assembling the power steering apparatus comprising:
a first step of setting the magnetic sensor into the connector in such a manner that the magnetic sensor and the harness are
electrically connected to each other;

a second step of inserting the connector and the magnetic sensor from an opposite side of the connector insertion hole in
the radial direction toward one side of the connector insertion hole in the radial direction, the second step being performed
subsequently to the first step; and

a third step of inserting the first magnetism collection ring and the second magnetism collection ring into the torque sensor
container portion from the first opening portion in such a manner that the magnetic sensor is situated between the first magnetism
collection ring and the second magnetism collection ring in the radial direction, the third step being performed subsequently
to the second step.

US Pat. No. 9,474,191

POWER SEMICONDUCTOR MODULE

Hitachi Automotive System...

1. A power semiconductor module comprising:
a semiconductor device configured to perform conversion into DC power and AC power; conductor plates placed on both sides
of the semiconductor device, the conductor plates being connected to electrode surfaces of the semiconductor device with solder;
a sealed unit having the semiconductor device and the conductor plates sealed therein with resin; a case for housing the sealed
unit; and an insulating member placed between the sealed unit and the case, wherein the case comprises:

a first heat releasing member facing one surface of the sealed unit;
a second heat releasing member facing another surface of the sealed unit on the opposite side from the one surface;
a first joining member connected to the first heat releasing member while surrounding the first heat releasing member;
a second joining member connected to the second heat releasing member while surrounding the second heat releasing member;
and

a sidewall portion connected to the first joining member and the second joining member,
the second joining member has a larger amount of springback than an amount of springback of the first joining member,
and
the sealed unit is subjected to compressive stress generated from a difference in the amounts of springback between the first
joining member and the second joining member,

wherein a length of the second joining member is greater than a length of the first joining member.

US Pat. No. 9,216,739

VEHICLE TRAVEL CONTROL APPARATUS

Hitachi Automotive System...

1. A vehicle travel control apparatus that travels on the basis of a predetermined set speed, and controls a travel of a subject
vehicle according to a situation around the subject vehicle, the travel control apparatus comprising:
a road width detection unit that detects a road width of a subject vehicle travel road in front of the subject vehicle;
an obstacle detection unit that detects a position of an obstacle on the subject vehicle travel road;
an oncoming vehicle detection unit that detects a position of an oncoming vehicle on the subject vehicle travel road;
a width detection unit that detects widths of the detected obstacle and the detected oncoming vehicle in a direction of the
road width;

a subject vehicle travel side virtual lane calculation unit that calculates a subject vehicle travel side virtual lane on
which the subject vehicle can travel on the subject vehicle travel side, on the basis of the road width, the position and
the width of the obstacle, and the subject vehicle speed;

an oncoming vehicle travel side virtual lane calculation unit that calculates an oncoming vehicle travel side virtual lane
on which the subject vehicle can travel on the oncoming vehicle travel side, on the basis of the road width, the position
and the width of the obstacle, the subject vehicle speed, and the position and the width of the oncoming vehicle, and the
speed of the oncoming vehicle; and

a residual road width calculation unit that calculates the residual road width of the subject vehicle travel road on the basis
of the road width, the subject vehicle travel side virtual lane, and the oncoming vehicle travel side virtual lane,

wherein when a point at which the calculated residual road width is smaller than a given value is present, a travel of the
subject vehicle stops at a position in front of the point.

US Pat. No. 9,277,682

POWER MODULE AND POWER CONVERSION DEVICE USING POWER MODULE

Hitachi Automotive System...

3. A power module, comprising:
a sealed body including a semiconductor device, a first lead frame coupled to one of electrode surfaces of the semiconductor
device with a first metal joining material between the first lead frame and the one of the electrode surfaces, a second lead
frame coupled to another of the electrode surfaces of the semiconductor device with a second metal joining material between
the second lead frame and the another of the electrode surfaces, and a sealing material with which the semiconductor device,
the first lead frame, and the second lead frame are sealed;

a case that accommodates the sealed body and has an opening formed therein;
a cover shaped to be larger than an opening area of the opening of the case;
a first insulating member disposed between the sealed body and an internal wall of the case; and
a second insulating member disposed between the sealed body and the cover, wherein
the first lead frame has a first barded surface that is bared out of the sealing material, and the first bared surface of
the first lead frame is brought into contact with the first insulating member;

the second lead frame has a second bared surface that is bared out of the sealing material, and the second bared surface of
the second lead frame is brought into contact with the second insulating member;

the case has a cover receiving part formed on a perimeter of the opening of the case;
the cover has a part thereof, which is opposed to the second insulating member, formed as a cover projection that juts out
toward the sealed body, and the cover is fixed to the cover receiving part;

at least one of the first insulating member or the second insulating member is formed so that a thickness thereof varies depending
on a predetermined pressing force, and the at least one of the first insulating member or the second insulating member is
pressed against the sealed body with the thickness thereof varied with the predetermined pressing force from the cover projection
of the cover.

US Pat. No. 9,283,943

BRAKE APPARATUS

HITACHI AUTOMOTIVE SYSTEM...

1. A brake apparatus comprising:
a reservoir configured to reserve brake fluid;
a master cylinder in communication with the reservoir, the master cylinder being configured to generate a hydraulic pressure
in a pressure chamber by cutting off communication between the pressure chamber and the reservoir according to a forward movement
of a piston of the master cylinder;

a booster configured to operate the piston;
a hydraulic pressure detector configured to detect the hydraulic pressure generated in the pressure chamber; and
a controller configured to control the booster,
wherein the booster includes an input member configured to be moved according to an operation of a brake pedal, an electric
actuator configured to drive the piston, and a position detector configured to detect a position of the piston,

wherein the controller is configured to set at least two holding positions of the piston such that the piston is held at a
first control original position and a second control original position based on a reference position by the electric actuator,

wherein the controller is configured to set the reference position from a position of the piston detected by the position
detector in a state in which the controller causes the electric actuator to move the piston in a hydraulic pressure generation
direction until the hydraulic pressure generated in the pressure chamber detected by the hydraulic pressure detector reaches
a predetermined threshold value,

wherein the controller is configured to set the second control original position corresponding to a position of the piston
in a state in which the piston is moved back from the reference position in a hydraulic pressure release direction by a first
predetermined amount so as to establish the communication between the pressure chamber and the reservoir,

wherein the controller is configured to set the first control original position corresponding to a position of the piston
in a state in which the piston is moved forward from the second control original position in the hydraulic pressure generation
direction by a second predetermined amount, the second predetermined amount being different from the first predetermined amount,
and

wherein the controller is configured to set the first control original position and the second control original position in
a state in which the brake pedal is not operated.

US Pat. No. 9,877,419

POWER CONVERSION APPARATUS

Hitachi Automotive System...

1. A power conversion apparatus comprising:
a power semiconductor module converting DC power to AC power;
a capacitor module for smoothing the DC power;
a conductor plate connecting the power semiconductor module with the capacitor module;
a flow path forming body forming a flow path through which a cooling refrigerant flows; and
a wall defining a first housing space for housing the power semiconductor module and a second housing space for housing the
capacitor module,

wherein the wall is connected with the flow path forming body, and
the conductor plate is thermally connected to the wall through an insulating member.

US Pat. No. 9,863,417

VARIABLE DISPLACEMENT VANE PUMP

HITACHI AUTOMOTIVE SYSTEM...

13. A variable displacement vane pump comprising:
a pump housing;
a driving shaft rotatably supported by the pump housing;
a rotor disposed in the pump housing and configured to be rotatably driven by the driving shaft, the rotor including a plurality
of slits in a circumferential direction;

a plurality of vanes disposed so as to be configured to be projected from and inserted into the slits;
a cam ring disposed swingably in the pump housing, the cam ring being annularly formed and defining a plurality of pump chambers
on an inner circumferential side thereof together with the rotor and the vanes;

a limiting surface formed so as to surround the cam ring and configured to limit a swinging range of the cam ring, the limiting
surface having a cam support surface providing a support surface for swinging movement of the cam ring;

an intake port formed at the pump housing so as to be opened in an intake region of the plurality of pump chambers, the intake
region being a region where a volume thereof increases as the rotor rotates, the intake port being disposed opposite of the
driving shaft from the cam support surface;

a discharge port formed at the pump housing so as to be opened in a discharge region of the plurality of pump chambers, the
discharge region being a region where a volume thereof decreases as the rotor rotates, the discharge port being disposed closer
to the cam support surface with respect to the driving shaft; and

a control valve disposed at the pump housing and configured to control an eccentric amount of the cam ring with respect to
the rotor, wherein

the cam support surface is formed in such a manner that a shortest distance between the cam support surface and a reference
line decreases from a second confining region side toward a first confining region side,

an inner diameter of the cam ring varies along a circumferential direction,
the cam ring has the inner diameter set in such a manner that a volume change rate, which is a change rate in which a volume
of each of the plurality of pump chambers changes according to rotation of the driving shaft, decreases and then, in the second
confining region, increases when the eccentric amount of the cam ring is maximized,

the first confining region is a region between a terminal end of the discharge port, which is an end point of the discharge
port where one of the plurality of vanes in the discharge region reaches for a last time as the rotor rotates, and a start
end of the intake port, which is an end point of the intake port where one of the plurality of vanes reaches for a first time
after moving away from the discharge region as the rotor rotates,

the second confining region is a region between a terminal end of the intake port, which is an end point of the intake port
where one of the plurality of vanes in the intake region reaches for a last time as the rotor rotates, and a start end of
the discharge port, which is an end point of the discharge port where one of the plurality of vanes reaches for a first time
after moving away from the intake region as the rotor rotates, and

the reference line is a line perpendicularly intersecting with the driving shaft and passing through a reference point which
is a middle point between the start end of the intake port and the terminal end of the discharge port in a rotational direction
of the driving shaft.

US Pat. No. 9,694,847

TORQUE DETECTION STRUCTURE FOR POWER STEERING DEVICE, AND POWER STEERING DEVICE USING SAME

HITACHI AUTOMOTIVE SYSTEM...

1. A torque detection structure for a power steering device mounted on an automotive vehicle for detecting a steering torque
by a driver, comprising:
a steering shaft having an input shaft configured to rotate in synchronism with rotation of a steering wheel and an output
shaft connected via a torsion bar to the input shaft for transmitting rotation from the input shaft to steered road wheels;

a housing having one axial opening formed on one axial side of opposite axial directions of a rotation axis of the steering
shaft and configured to accommodate the output shaft in the housing;

a ball bearing having an inner race, balls, and an outer race and inserted from the one axial opening and accommodated and
disposed in the housing for rotatably supporting the output shaft in the housing;

a fixing member formed into a circular-arc shape or an annular shape and inserted and disposed from the one axial opening
into the housing and configured to fix the outer race to the housing with the fixing member fixed to the housing in a state
where one end of the fixing member has been brought into abutted-engagement with the outer race; and

a torque sensor having an outside diameter set less than an inside diameter of the fixing member and configured to generate
an electrical signal that changes in accordance with an amount of torsional deformation of the torsion bar,

wherein the torque sensor comprises
a magnetic member configured to be rotatable together with the output shaft and arranged coaxially with the rotation axis
such that two different poles alternate with each other in a circumferential direction;

a first yoke member having a first toothed portion with a plurality of claw-shaped teeth arranged coaxially with the rotation
axis so as to oppose the magnetic member in a radial direction of the rotation axis, and a first annular portion configured
to integrally connect the claw-shaped teeth of the first toothed portion with each other and formed of a magnetic material
and provided to be rotatable together with the input shaft;

a second yoke member having a second toothed portion with a plurality of claw-shaped teeth arranged coaxially with the rotation
axis so as to oppose the magnetic member in the radial direction of the rotation axis such that the claw-shaped teeth of the
first toothed portion and the claw-shaped teeth of the second toothed portion circumferentially alternate with each other,
and a second annular portion arranged to be opposed to and spaced apart from the first annular portion and configured to integrally
connect the claw-shaped teeth of the second toothed portion with each other and formed of a magnetic material and provided
to be rotatable together with the input shaft; and

a magnetic sensor having a Hall element detecting a change in magnetic field between the first annular portion and the second
annular portion caused by a change in relative angle of the first and second toothed portions and the magnetic member, arising
from torsional deformation of the torsion bar.

US Pat. No. 9,796,409

POWER STEERING DEVICE AND CONTROL DEVICE FOR VEHICLE-MOUNTED INSTRUMENT

HITACHI AUTOMOTIVE SYSTEM...

1. A power steering device comprising:
a steering mechanism that steers steered road wheels in response to a steering operation of a steering wheel;
an electric motor that provides the steering mechanism with a steering force;
an ECU that drives and controls the electric motor;
a motor control circuit that is installed in the ECU and outputs a motor command signal for driving and controlling the electric
motor in accordance with an operation condition of a vehicle;

a steering torque sensor that is installed in the steering mechanism and detects a steering torque produced in the steering
mechanism;

a steering angle sensor that is installed in the steering mechanism and detects a steering angle that represents a steering
angle amount of the steering wheel;

a motor rotation angle sensor that is provided by the electric motor and detects a rotation angle of a rotor of the electric
motor;

a torque signal receiving section that is installed in the ECU and receives two steering torque detection signals outputted
from the steering torque sensor, the two steering torque detection signals being first and second steering torque detection
signals that are issued from different detecting elements or those that are issued from a same detecting element and then
treated by different electronic circuits;

a steering angle signal receiving section that is installed in the ECU and receives two steering angle detection signals outputted
from the steering angle sensor, the two steering angle detection signals being first and second steering angle detection signals
that are issued from different detecting elements or those that are issued from a same detecting element and then treated
by different electronic circuits;

a motor rotation angle signal receiving section that is installed in the ECU and receives two motor rotation angle detection
signal issued from the motor rotation angle sensor, the two motor rotation angle detection signals being first and second
motor rotation angle detection signals that are issued from different detecting elements or those that are issued from a same
detecting element and then treated by different electronic circuits;

a first abnormality detection circuit that is installed in the ECU and detects an abnormality of one of the steering torque
sensor, the steering angle sensor and the motor rotation angle sensor by carrying out either one of a first comparison between
the first steering torque detection signal and the second steering torque detection signal, a second comparison between the
first steering angle detection signal and the second steering angle detection signal and a third comparison between the first
motor rotation angle detection signal and the second motor rotation angle detection signal;

an abnormality determination circuit that is installed in the first abnormality detection circuit and determines the abnormality
of the one of the sensors when the abnormality of the sensor is detected by the first abnormality detection circuit and the
abnormal condition of the sensor is continued for a predetermined time;

a comparison signal production circuit that is installed in the ECU and produces or selects a comparison signal by using a
signal other than already compared comparison signals that have been subjected to the first, second and third comparisons
in the first abnormality detection circuit, the comparison signal having the same unit of measure as the already compared
comparison signals;

a second abnormality detection circuit that is installed in the ECU and compares the comparison signal produced or selected
by the comparison signal production circuit with the already compared comparison signal such that a value of the signals which
are the same or approximate in value to each other and which a largest number of the signals have is determined as a normal
value, and another value is determined as an abnormal value; and

a control continuation judgment circuit that is installed in the ECU and continues the driving and controlling of the electric
motor by the motor control circuit by using the normal value when the normal value is calculated by the second abnormality
detection circuit before the abnormality is determined by the abnormality determination circuit, and stops or limits the driving
and controlling of the electric motor when the abnormality is determined by the abnormality determination circuit before the
normal value is calculated by the second abnormality detection circuit.

US Pat. No. 9,707,994

POWER STEERING DEVICE

HITACHI AUTOMOTIVE SYSTEM...

1. A power steering apparatus comprising:
a steering mechanism formed of an iron-series metallic material and which steers steerable wheels in accordance with a steering
operation of a steering wheel;

an electrically driven motor which provides a steering force for the steering mechanism;
a speed reduction mechanism formed of the iron-series metallic material, interposed between the steering mechanism and the
electrically driven motor, and which transmits a revolution force of the electrically driven motor to the steering mechanism;

a torque sensor which detects a steering torque generated in the steering mechanism;
a control unit which calculates a motor command current drivingly controlling the electrically driven motor on a basis of
the steering torque and outputs the motor command current to the electrically driven motor;

a steering load average value calculating circuit installed in the control unit and which calculates an average value of a
steering load corresponding value, the steering load corresponding value corresponding to any one of the steering torque within
a predetermined interval of time, the motor command current, and a motor actual current actually flowing through the electrically
driven motor; and

an abnormality detection circuit installed in the control unit, which compares the average value of the steering load corresponding
value with a specified value stored in the control unit, and detects an abnormality of the apparatus when the average value
is larger than the specified value,

wherein the steering load average value calculating circuit stores a newest value of the average value of the steering load
corresponding value into a non-volatile memory, when an ignition switch of a vehicle is turned off,

wherein the steering load average value calculating circuit calculates the average value of the steering load corresponding
value on a basis of an information of the average value of the steering load corresponding value stored in the non-volatile
memory and the steering load corresponding value after the ignition switch is turned on, when the ignition switch of the vehicle
is turned on, and

wherein the steering load average value calculating circuit calculates the average value of the steering load corresponding
value by making a weight of the average value of the steering load corresponding value stored in the non-volatile memory larger
than the steering load corresponding value after the ignition switch is turned on.

US Pat. No. 9,285,006

SHOCK ABSORBER

HITACHI AUTOMOTIVE SYSTEM...

1. A tube-type shock absorber comprising:
a circular cylindrical cylinder part having a working fluid sealed therein;
a piston movable in the cylinder part;
a piston rod connected to the piston and extended to an outside of the cylinder part;
a circular cylindrical casing joined to a side surface portion of the cylinder part; and
a damping force generating device housed in the casing to generate a damping force by controlling a flow of hydraulic fluid
induced by movement of the piston,

wherein the casing is in a shape of a circular cylinder with a bottom, the bottom having an opening and an inner surface including
a planar portion around the opening, the bottom having a joint surface that is joined to the cylinder part, the joint surface
being curved along an outer peripheral surface of the cylinder part,

wherein the bottom of the casing has the inner surface and the joint surface integrally formed by forging,
wherein the damping force generating device is provided on the inner surface of the bottom of the casing,
wherein a recess is formed on the inner surface of the bottom of the casing, the recess being concaved from the inner surface
and extending to the opening in a radial direction, the recess being integrally formed with the bottom by forging, and

wherein a flow path of the hydraulic fluid communicates between the damping force generating device and the opening by the
recess.

US Pat. No. 9,246,408

POWER CONVERSION APPARATUS

Hitachi Automotive System...

1. A power conversion apparatus comprising:
a U-phase power semiconductor module including a high side U-phase circuit and a low side U-phase circuit of an inverter circuit
which converts a DC current into an AC current;

a V-phase power semiconductor module including a high side V-phase circuit and a low side V-phase circuit of the inverter
circuit;

a W-phase power semiconductor module including a high side W-phase circuit and a low side W-phase circuit of the inverter
circuit; and

a capacitor module including a capacitor cell which smoothes the DC current, wherein:
a first bus bar which is connected to the U-phase, V-phase, and W-phase power semiconductor modules, and the U-phase, V-phase,
and W-phase power semiconductor modules are configured separately;

the capacitor module includes a case for containing the capacitor cell, a sealing material for sealing the capacitor cell,
and a second bus bar which is connected to the capacitor cell in the sealing material, a terminal portion of the second bus
bar protruding from a surface of the sealing material;

the first bus bar is configured with a first positive side bus bar, a first negative side bus bar, and a first insulation
member arranged between the first positive side bus bar and the first negative side bus bar; and

the first bus bar further includes a first terminal connected to a terminal extending from the U-phase power semiconductor
module, a second terminal connected to a terminal extending from the V-phase power semiconductor module, a third terminal
connected to a terminal extending from the W-phase power semiconductor module, and a fourth terminal connected in direct contact
with an end portion of the terminal portion of the second bus bar protruding from the surface of the sealing material.

US Pat. No. 9,796,414

ELECTRIC POWER STEERING DEVICE AND CONTROL DEVICE OF ELECTRIC POWER STEERING DEVICE

HITACHI AUTOMOTIVE SYSTEM...

1. An electric power steering device comprising:
a steering mechanism including a first shaft connected to a steering wheel, a second shaft connected to the first shaft through
a torsion bar and a rack bar connected to the second shaft through a rack-and-pinion mechanism;

a mechanical stopper including first and second stopper parts respectively provided by the first and second shafts, the first
and second stopper parts being brought into contact to each other to suppress a further relative rotation between the first
and second shafts when the first and second shafts make a given amount of relative rotation therebetween while twisting the
torsion bar;

an electric motor that provides the steering mechanism with a steering power for assisting a steering operation applied to
the steering wheel; and

a control unit for controlling the electric motor, the control unit including:
a steering torque signal receiving part into which a steering torque signal produced in the steering mechanism is received;
a steering angle signal receiving part into which a steering angle signal representing a steered angle of a steered road wheel
is received;

a torsion bar twist amount signal receiving part into which a torsion bar twist amount signal, which represents a twisted
amount of the torsion bar, is received;

a basic assist command signal calculation part by which a basic assist command signal for the electric motor is calculated
based on the steering torque signal;

a first damping signal calculation part that calculates a first damping signal when the steering angle signal represents that
the steered angle is equal to or greater than a first given angle and the steering wheel is being turned further in the same
direction, the first damping signal representing a damping force against a steering force produced by the electric motor when
the steering wheel is turned further in the same direction;

a second damping signal calculation part that calculates a second damping signal when the torsion bar twist amount signal
represents that the torsion bar twist amount is equal to or greater than a second given angle and the steering wheel is being
turned further in the same direction, the second damping signal representing a damping force against a steering force produced
by the electric motor when the steering wheel is turned further in the same direction;

a damping correction amount calculation part that calculates a damping correction amount, which is a correction amount of
the basic assist command signal effected by the first and second damping signals, based on either one of the steering angle
signal, a first control amount calculated based on the steering angle signal, the torsion bar twist amount signal and a second
control amount calculated based on the torsion bar twist amount signal; and

a motor command signal output part that outputs to the electric motor a command signal based on the basic assist command signal
and the damping correction amount.

US Pat. No. 9,497,873

POWER MODULE INCLUDING FIRST AND SECOND SEALING RESINS

Hitachi Automotive System...

1. A power module, which is used in a power converter and mutually converts DC and AC, comprising:
a power semiconductor module comprising a pair of conductor plates, a semiconductor device disposed between the conductor
plates, and a first sealing resin covering side surfaces of the pair of conductor plates, the power semiconductor module being
integrated by the first sealing resin;

a metal case comprising a heat dissipation unit on an outer surface thereof and a storage unit storing the power semiconductor
module; and

a second sealing resin provided on an outer peripheral side of the first sealing resin of the power semiconductor module stored
in the metal case, a side surface of the second sealing resin adhering to an inner surface of the metal case,

wherein a rough surface layer for improving adhesiveness with the second sealing resin is provided at least on a region opposing
the side surface of the second sealing resin on the inner surface of the metal case, and the second sealing resin fills dents
of the rough surface layer,

wherein an oxide layer is formed on an outer side surface of the metal case, and
wherein the metal case comprises:
a frame including an opening; and
a heat dissipation fin plate formed of a material different from that of the frame and including a heat dissipation fin bonded
to a periphery of the opening of the frame,

the oxide layer is formed on outer side surfaces of the frame and the heat dissipation fin plate, and
the thickness of the oxide layer formed on the outer side surface of the frame and the thickness of the oxide layer formed
on the outer side surface of the heat dissipation fin plate are different.

US Pat. No. 9,353,822

SHOCK ABSORBER AND METHOD FOR MANUFACTURING SHOCK ABSORBER

HITACHI AUTOMOTIVE SYSTEM...

1. A method for manufacturing a shock absorber, the shock absorber comprising:
a cylinder sealingly containing hydraulic fluid;
a piston inserted in the cylinder;
an outer tube disposed outside the cylinder;
a piston rod coupled to the piston and extending outwardly from the cylinder; and
a damping force generation mechanism configured to generate a damping force by controlling a flow of the hydraulic fluid,
which is generated by a sliding movement of the piston in the cylinder,

wherein the damping force generation mechanism includes:
a tubular case protruding outwardly from a side of the outer tube, the tubular case including a case side screw portion formed
on an outer circumferential portion of the case;

a tubular threadably engageable member with a screw portion, which is threadably engaged with the case side screw portion,
formed on an inner circumferential portion thereof; and

an annular seal member provided between the outer circumferential portion of the case and the inner circumferential portion
of the threadably engageable member to seal the case side screw portion and a threadably engageable member side screw portion
from an outside of the damping force generation mechanism,

wherein an annular seal groove is formed on the outer circumferential portion of the case, and the seal member is fitted in
the seal groove,

the method comprising:
fitting the seal member in the seal groove of the case;
preparing a mask member including a tubular portion having an inner circumferential surface;
a first seal step in which the mask member is externally fitted around the case to mask the case side screw portion with the
inner circumferential surface of the tubular portion in close contact with the seal member fitted in the seal groove to prevent
a coating material from entering between the mask member and the case by providing a seal between the mask member and the
case with the seal member;

coating the outer circumferential portion of the case after the first seal step; and
a second seal step in which the threadably engageable member is threadably engaged with the case to provide a seal between
the outer circumferential surface of the case and the inner circumferential surface of the threadably engageable member with
the same seal member, after the coating step, to prevent a foreign object from entering between the case and the threadably
engageable member.

US Pat. No. 9,714,657

VARIABLE DISPLACEMENT VANE PUMP AND POWER STEERING SYSTEM

HITACHI AUTOMOTIVE SYSTEM...

1. A variable displacement vane pump for supplying a hydraulic fluid to a power steering system of a vehicle, comprising:
a pump housing having a pump element accommodating portion in an interior of the pump housing;
a drive shaft which is supported rotatably in the pump housing;
a rotor which is accommodated in the pump element accommodating portion, which has a plurality of slits which are formed to
be aligned in a circumferential direction and which is driven to rotate by the drive shaft;

vanes which are provided so as to be extendable from and retractable into the slits;
a cam ring which is provided movably in the pump element accommodating portion and which defines a plurality of pump chambers
together with the rotor and the vanes;

a suction port which is provided in the pump housing and which opens to an area where some of the plurality of pump chambers
increase gradually displacements of the pump chambers as the rotor rotates;

a discharge port which is provided in the pump housing and which opens to an area where the others of the plurality of pump
chambers decrease gradually displacements of the pump chambers as the rotor rotates;

a suction line which is provided in the pump housing and which supplies a hydraulic fluid which is reserved in a reservoir
tank to the suction port;

a discharge line which is provided in the pump housing and which supplies the hydraulic fluid which is discharged from the
discharge port to an exterior of the pump housing;

a first fluid pressure chamber and a second fluid pressure chamber which constitute a pair of spaces which are formed between
the cam ring and the pump element accommodating portion, the first fluid pressure chamber being formed on a side where a volume
of the pump chambers decreases when the cam ring moves in a direction in which an eccentricity of the cam ring relative to
the rotor increases, the second fluid pressure chamber being formed on a side where a volume of the pump chambers increases
when the cam ring moves in the direction in which the eccentricity of the cam ring relative to the rotor increases;

a metering orifice which is provided in the discharge line;
a control valve accommodating portion which is provided in the pump housing and which is formed so as to communicate with
the first fluid pressure chamber via a cam control pressure induction line;

a high pressure induction line which connects the discharge port with the control valve accommodating portion;
a valve body which is provided movably in the control valve accommodating portion;
a first land portion which is, assuming that the valve body moves in an axial direction, provided at a one side of the valve
body in the axial direction to restrict a flow of hydraulic fluid in a gap between the control valve accommodating portion
and the valve body;

a second land portion which is provided to the other side of the valve body in the axial direction with respect to the first
land portion to restrict the flow of hydraulic fluid in the gap between the control valve accommodating portion and the valve
body;

a small-diameter portion which is formed smaller in diameter than the first land portion and the second land portion so that
a space is formed between the control valve accommodating portion and the valve body in an area between the first land portion
and the second land portion in the axial direction;

three spaces which are formed in the control valve accommodating portion, the three spaces including a high pressure chamber
which is provided at the one side of the valve body in the axial direction and to which a hydraulic fluid existing upstream
of the metering orifice is supplied by way of the high pressure induction line which is provided at an axial side of the first
land portion in the axial direction, a middle pressure chamber which is provided at the other side of the valve body in the
axial direction and to which a hydraulic fluid existing downstream of the metering orifice is supplied, and a low pressure
chamber which is provided between the first land portion and the second land portion, which constitutes a space defined between
the control valve accommodating portion and the small-diameter portion and which communicates with the suction line;

a biasing member which is provided in the control valve accommodating portion and which biases the valve body in the one side
in the axial direction;

a control valve which controls variably a communication amount by which the cam control pressure induction line communicates
with the high pressure chamber and a communication amount by which the cam control pressure induction line communicates with
the low pressure chamber as the valve body moves to thereby control a pressure in the first fluid pressure chamber and an
eccentricity of the cam ring; and

a bypass line which is formed so as not only to cause a hydraulic fluid in any one of the high pressure chamber, the high
pressure induction line and the discharge line which lies in an area which is upstream of the metering orifice to flow directly
to either of the suction line side or the discharge line which lies in an area which is downstream of the metering orifice
by performing a bypass but also to increase a bypass flow rate as a pressure in the hydraulic fluid existing downstream of
the metering orifice increases as the power steering system is activated to operate and which is configured to decrease a
difference in pressure between the high pressure chamber and the middle pressure chamber by increasing the bypass flow rate,
to increase the communication amount of the cam control pressure induction line with the low pressure chamber by moving the
valve body to the one side in the axial direction as the pressure difference decreases, and to increase the eccentricity of
the cam ring by decreasing the pressure in the first fluid pressure chamber.

US Pat. No. 9,278,676

BRAKE CONTROL DEVICE

Hitachi Automotive System...

1. A brake control device comprising:
a master cylinder configured to generate hydraulic pressure, the hydraulic pressure generating a braking force;
an electric motor configured to control the hydraulic pressure in the master cylinder;
a control circuit configured to generate a current that drives the electric motor with electric power supplied from a main
power supply source; and

an auxiliary power supply source, wherein
the control circuit is configured to calculate a demanded braking force corresponding to an operation amount of a brake pedal,
the current that drives the electric motor is generated on the basis of the calculated demanded braking force,
the electric motor is configured to convert the hydraulic pressure generated in the master cylinder into the demanded braking
force,

when there is an abnormality in the main power supply source, the control circuit carries out braking control with electric
power supplied from the auxiliary power supply source in the following manner:

the control circuit determines whether or not the brake pedal operation corresponds to emergency braking, and
if the control circuit determines that the brake pedal operation does not correspond to the emergency braking, the current
that drives the electric motor is reduced in response to the brake pedal operation carried out under conditions equivalent
to the conditions for carrying out braking control with electric power supplied from the main power supply source, and

if the control circuit determines that the brake pedal operation corresponds to the emergency braking, the current that drives
the electric motor is substantially maintained at a same level in response to the brake pedal operation carried out under
conditions equivalent to the conditions for carrying out braking control with electric power supplied from the main power
supply source.

US Pat. No. 9,206,876

DAMPING FORCE CONTROL TYPE SHOCK ABSORBER

HITACHI AUTOMOTIVE SYSTEM...

1. A damping force control type shock absorber comprising:
a cylinder having a hydraulic fluid sealed therein;
a piston slidably fitted in the cylinder;
a piston rod connected to the piston and extended to an outside of the cylinder; and
a damping force generating mechanism adapted to generate a damping force by controlling a flow of hydraulic fluid caused by
sliding movement of the piston in the cylinder;

the damping force generating mechanism including:
a pilot-type main valve that opens upon receiving a pressure of the hydraulic fluid to generate a damping force, the main
valve having a pilot chamber into which the hydraulic fluid is introduced to adjust a valve-opening pressure of the main valve
by a pressure in the pilot chamber;

a pilot-type control valve adapted to control the pressure in the pilot chamber of the main valve; and
a solenoid valve adapted to control a pressure in a pilot chamber of the control valve, wherein:
the main valve generates a damping force by controlling a flow of hydraulic fluid from an upstream chamber to a downstream
chamber caused by sliding movement of the piston;

the control valve generates a damping force by controlling a flow of hydraulic fluid from the pilot chamber of the main valve
to the downstream chamber;

the solenoid valve generates a damping force by controlling a flow of hydraulic fluid from the pilot chamber of the control
valve to the downstream chamber; and

an area of a flow path through which the hydraulic fluid is introduced into the pilot chamber of the control valve is smaller
than an area of flow path through which the hydraulic fluid is introduced into the pilot chamber of the main valve.

US Pat. No. 9,181,912

CONTROL DEVICE FOR IN-CYLINDER INJECTION TYPE INTERNAL COMBUSTION ENGINE

Hitachi Automotive System...

1. A control device of an in-cylinder injection type internal combustion engine in which fuel is subjected to divided injections
into a combustion chamber a plurality of times in one burning cycle,
when fuel injection into the combustion chamber is resumed after the fuel injection into the combustion chamber is temporarily
stopped according to an operation state of a vehicle,

at least a first injection amount rate among the divided injections is controlled to decrease compared with remaining injection
amount rates of the divided injections,

wherein the decrease is greater when a fuel cut period, from when the fuel injection is stopped to when the fuel injection
is resumed, is longer,

wherein the control device comprises a CPU and a I/O LSI, the I/O LSI comprising an A/D converter and a drive circuit configured
to drive fuel injectors,

wherein the control device is configured to:
set, via the CPU, a total injection pulse width;
calculate, via the CPU, a minimum injection pulse width;
calculate, via the CPU, an injection interval between divided injections;
set, via the CPU, a number of divisions; and
while the number of divided injection is less than the number of divisions,
calculate, via the CPU, an injection pulse width;
set, via the CPU, an injection timing of each injection;
supply, via the CPU, a control signal to each fuel injector; and
drive, via the drive circuit, each fuel injector.

US Pat. No. 9,828,991

VARIABLE DISPLACEMENT VANE PUMP

HITACHI AUTOMOTIVE SYSTEM...

1. A variable displacement vane pump, comprising:
a pump housing;
a drive shaft supported rotatably on the pump housing;
a rotor provided in the pump housing, the rotor being configured to be driven to rotate by the drive shaft and including a
plurality of slots in a circumferential direction;

a plurality of vanes provided so as to appear from and disappear into the slots;
a cam ring provided movably within the pump housing, the cam ring being formed into an annular shape and defining a plurality
of pump chambers on an inner circumferential side together with the rotor and the vanes;

a suction port formed in the pump housing, the suction port opening to a suction area of the plurality of pump chambers, in
which area a displacement is increased as the rotor rotates;

a discharge port formed in the pump housing, the discharge port opening to a discharge area of the plurality of pump chambers,
in which area a displacement is reduced as the rotor rotates;

a control valve provided in the pump housing and configured to control an eccentricity of the cam ring relative to the rotor;
and

a notch portion which is a flow passageway provided to extend from an initiating end of the discharge port towards a terminating
end of the suction port, the notch portion being formed so that a sectional area of the flow passageway is smaller than a
sectional area of the discharge port at the initiating end thereof and that a length of the flow passageway in a circumferential
direction is 1.5 pitches or larger,

wherein the flow passageway is defined by at least one wall of the notch portion,
wherein the terminating end of the suction port is a point where a vane in the suction area last overlaps the suction port,
the initiating end of the discharge port is a point where a vane departed from the suction area first overlaps the discharge
port, the circumferential direction is a rotating direction of the drive shaft, and one pitch is a distance defined in the
circumferential direction between adjacent vanes of the plurality of vanes.

US Pat. No. 9,300,176

ELECTRIC MACHINE WITH Q-OFFSET GROOVED INTERIOR-MAGNET ROTOR AND VEHICLE

Hitachi Automotive System...

1. A rotating electric machine comprising:
a stator having a stator coil; and
a rotor provided rotatably around a specific rotation axis with respect to the stator, wherein
the rotor includes:
a plurality of magnets;
a plurality of holes in which the magnets are provided;
wherein the plurality of magnets are arranged in regions of alternating polarity, wherein each of said regions has at least
one magnet;

a plurality of magnetically-assisted salient pole members, each of which is provided in a core portion between the regions;
a first magnetic air gap formed with an edge of each of the magnets and the holes; and
a second magnetic air gap provided in each of the magnetically-assisted salient pole members along an axial direction of the
rotation axis at a position offset in a circumferential direction of the rotation axis from a q-axis passing through a salient
pole center of each of the magnetically-assisted salient pole members, wherein

the second magnetic air gap is formed independently from the first magnetic air gap; and
the second magnetic air gap has an amount of offset from the q-axis in a cross section perpendicular to the rotation axis,
the amount of offset varying depending on positions of the magnetically-assisted salient pole members so that torque fluctuations
in the cross section cancel each other when power is applied.

US Pat. No. 9,146,253

COMBINED SENSOR AND METHOD FOR MANUFACTURING THE SAME

Hitachi Automotive System...

1. A method for manufacturing a combined sensor that is fabricated from a sensor wafer and cap wafer, the sensor having a
plurality of sensor chips arranged thereon, each of the sensor chips being composed of an angular velocity sensor using a
vibrator to detect angular velocity and an acceleration sensor using a movable member to detect acceleration, the cap wafer
having a plurality of cap chips arranged thereon, each of the cap chips being formed with concave gaps at respective positions
corresponding to the angular velocity sensor and the acceleration sensor, each cap chip being formed with convex bumps near
the gap of the angular velocity sensor, the method comprising a process for sequentially performing:
a bonding-sealing and bonding-inhibition step in which the sensor wafer and the cap wafer are bonded to each other with the
bumps interposed therebetween in an atmospheric pressure environment, the acceleration sensor is bonded and sealed in the
atmospheric pressure environment and bonding of the angular velocity sensor is inhibited by the bumps near the gaps formed
in the angular velocity sensor in the atmospheric pressure environment;

a vacuum atmosphere creation step which under a vacuum atmosphere, saturates the angular velocity sensor with the vacuum atmosphere
through a clearance for the bonding-inhibition caused by the bumps;

a bonding-sealing step which subjects the sensor wafer and the cap wafer to heating and puts a load thereon to deform the
bumps to bond and seal the angular velocity sensor in the vacuum atmosphere; and

a singulation step in which the combined sensor wafer is cut so as to remove the bumps formed near the gap of the angular
velocity sensor.

US Pat. No. 9,270,195

POWER CONVERTER INCLUDING A POWER MODULE ALLOWING MAIN CURRENT SUPPLY AND CUTOFF

Hitachi Automotive System...

1. A power converter which includes a power module allowing supply and cutoff of main current, and a driver module controlling
supply and cutoff of the main current allowed by the power module, comprising:
a high potential side semiconductor device which allows supply and cutoff of the main current on the high potential side of
the power module;

a low potential side semiconductor device which allows supply and cutoff of the main current on the low potential side of
the power module, and is connected with the high potential side semiconductor device in series;

plural power module side wirings connected with respective electrodes contained in the high potential side semiconductor device
and the low potential side semiconductor device, and disposed adjacent to each other substantially on the same plane as the
power module in the order of applied potentials with a connection end between the plural power module side wirings and the
driver module located along the end of the power module;

plural driver module side wirings provided on the driver module as wirings connected with the plural corresponding power module
side wirings, and disposed, adjacent to each other substantially on the same plane as the driver module in the order corresponding
to the positions of the plural power module side wirings in positions along the end of the driver module;

a power source transformer as a circuit provided on the driver module to convert a signal voltage for controlling the supply
and cutoff of the main current into voltage applied to a control electrode of the high potential side semiconductor device
and a control electrode of the low potential side semiconductor device, plural terminals of the power source transformer in
correspondence with the plural driver module side wirings being provided in the order of the positions of the plural corresponding
driver module side wirings; and

conductors disposed in the vicinity of the plane on which the plural power module side wirings are provided and in the vicinity
of the plane on which the plural driver module side wirings are provided, and electrically connected in such positions as
to surround magnetic flux generated by current looping at least through the power source transformer, the driver module side
wirings, and the power module side wirings.

US Pat. No. 9,151,192

VARIABLE VALVE SYSTEM, CONTROL APPARATUS AND VARIABLE VALVE APPARATUS FOR INTERNAL COMBUSTION ENGINE

HITACHI AUTOMOTIVE SYSTEM...

1. A variable valve apparatus for an internal combustion engine, comprising:
a plurality of engine valves provided per one cylinder;
a swing arm configured to perform an opening-and-closing operation of at least one of the plurality of engine valves by swinging
about a fulcrum given by a support member;

a variable lift mechanism configured
to cause the swing arm to swing, and
to vary a lift amount of the at least one of the plurality of engine valves;
a valve stop mechanism provided for the at least one of the plurality of engine valves, and configured to stop the opening-and-closing
operation of the at least one of the plurality of engine valves by producing a lost motion of the support member; and

an engine-speed limiting section configured to variably limit a maximum rotational speed of the internal combustion engine
in accordance with a displacement amount of the lost motion produced by the valve stop mechanism, wherein the engine-speed
limiting section includes a detecting section configured to detect a current value of the displacement amount of the lost
motion and to output an information signal of the current value.

US Pat. No. 9,382,964

CYLINDER APPARATUS

HITACHI AUTOMOTIVE SYSTEM...

1. A cylinder apparatus comprising:
a cylinder in which a fluid is sealed;
a valve member fitted into the cylinder and configured to partition the inside of the cylinder into at least two chambers;
a rod having one end extending to the outside of the cylinder;
a flow path formed at the valve member and through which the fluid flows when the rod is moved;
a valve configured to open and close the flow path; and
a restriction member disposed at a side in a direction in which the flow path of the valve is opened, wherein the restriction
member is an annular plate-shaped member having an attachment hole into which a fixing rod is inserted, the restriction member
includes:

a plurality of spring sections extending in the radial direction and configured to bias the valve toward the valve member;
and

a stroke restriction section extending from between the neighboring spring sections in the radial direction and configured
to restrict a stroke of the valve installed at an outer circumferential side thereof, and

wherein the stroke restriction section has a rib and extends to form the same plane as the inner circumferential side of the
restriction member.

US Pat. No. 9,322,686

FLOW SENSOR

Hitachi Automotive System...

1. A flow sensor comprising:
a semiconductor chip; and
a resin exposing an upper surface of the semiconductor chip and covering a part of the semiconductor chip, wherein
a cavity is formed on an upper surface of the resin, and
a cross-section of the flow sensor includes a predetermined cross-section in which an upper surface of the resin closer to
the semiconductor chip than a lower end of the cavity is lower than an upper surface of the semiconductor chip.

US Pat. No. 9,438,148

MOTOR DRIVE DEVICE

HITACHI AUTOMOTIVE SYSTEM...

1. A motor drive device comprising:
an inverter circuit for supplying electric power to an electric motor;
a power supply relay provided on a power supply line for supplying electric power from a power supply to the inverter circuit;
a phase relay provided on a drive line between the inverter circuit and the electric motor, and constituted by a semiconductor
switching element;

a drive circuit connected to the phase relay and the power supply relay, for driving the phase relay and the power supply
relay;

a first control line connecting the drive circuit to the phase relay;
a first surge-protection circuit provided at a position between the first control line and a motor-side line portion of the
drive line connecting the electric motor to the phase relay, and configured to protect the phase relay from surge voltage;

a first current reducing circuit configured to reduce a sneak current flowing from the electric motor into the first control
line;

a second control line connecting the drive circuit to the power supply relay;
an electric charge accumulation element provided on an inverter-side line portion of the power supply line between the inverter
circuit and the power supply relay, and configured to have a current supply capacity of the inverter circuit;

a second surge-protection circuit connected at a position between the second control line and the inverter-side line portion;
and

a second current reducing circuit configured to reduce a sneak current flowing from the electric charge accumulation element
into the second control line.

US Pat. No. 9,300,179

ELECTRIC ROTATING MACHINE

Hitachi Automotive System...

1. An electric rotating machine, comprising:
a rotor rotating around a rotational axis; and
a stator disposed to face a circumferential surface of the rotor,
the stator including a stator core and a stator coil, the stator core having a cylindrical core back and a plurality of teeth
radially extending from the core back, the stator coil being wound around the teeth in concentrated winding via an insulation
material,

the electric rotating machine further comprising a spacer having electric insulation performance, the spacer being attached
between the stator coils each wound around the respective teeth adjacent to each other,

wherein the spacer has a coefficient of linear expansion greater than that of the stator core,
wherein the spacer has a different circumferential length depending on axial direction of the stator core, and
wherein the circumferential length of the spacer is maximum in the vicinity of a rotational-axial center of the stator core,
and the circumferential length of the spacer is less than the maximum outside of the vicinity of the rotational-axial center
of the stator core.

US Pat. No. 9,287,587

SEALED BATTERY CELL AND MANUFACTURING METHOD THEREOF

Hitachi Automotive System...

1. A sealed battery cell comprising:
an anti-explosion mechanism disposed between an electrode group and a top cover, the electrode group including a positive
electrode and a negative electrode that are laminated together; wherein

the anti-explosion mechanism comprises a diaphragm, a connection plate comprising a lower surface and an upper surface that
is welded to the diaphragm, and a connection lead welded to the lower surface of the connection plate;

the connection plate includes a thinner portion having a flat upper surface across an entirety of the thinner portion, the
flat upper surface being recessed below an upper surface of adjacent portions of the connection plate, the thinner portion
being thinner than portions of the connection plate immediately adjacent thereto;

a lower surface of the thinner portion is coplanar with the lower surface of the portions of the connection plate immediately
adjacent to the thinner portion, and comprises a welded portion where the connection lead is welded directly to the lower
surface of the thinner portion; and

a thickness ratio between the thinner portion and a thickest portion of the connection plate is from 0.5 to 0.9.

US Pat. No. 9,194,455

SHOCK ABSORBER

HITACHI AUTOMOTIVE SYSTEM...

1. A shock absorber comprising:
a cylinder in which a working fluid is sealed;
a piston slidably inserted into the cylinder and configured to partition the inside of the cylinder into two chambers;
a piston rod connected to the piston and extending toward the outside of the cylinder;
a passage through which the working fluid flows by sliding movement of the piston; and
a damping force-generating mechanism installed at a portion of the passage and configured to control a flow of the working
fluid to generate a damping force,

wherein the damping force-generating mechanism comprises:
a valve main body through which the passage passes;
an annular outer seat protruding from the valve main body;
an inner seat protruding inward of the outer seat of the valve main body;
an intermediate seat disposed between the outer seat and the inner seat of the valve main body and protruding to surround
an opening section of the passage, wherein heights of the intermediate seat and the outer seat in a protrusion direction are
larger than that of the inner seat, and wherein a gradient of a line connecting a seat surface of the inner seat and a seat
surface of the intermediate seat is larger than a gradient of a line connecting the seat surface of the intermediate seat
and a seat surface of the outer seat;

a first disk having a larger diameter than the outer seat and that sits on the intermediate seat;
a spring member configured to press the first disk toward the outer seat such that the first disk abuts the outer seat;
a second disk stacked on the first disk; and
a communication unit configured to bring the passage in communication with a space between the intermediate seat and the outer
seat.

US Pat. No. 9,497,866

ELECTRONIC CONTROL DEVICE

Hitachi Automotive System...

1. An electronic control device comprising:
a circuit board mounted with an electronic component;
a case body in which a connector mounting part is formed at one end, a lid cover mounting part serving as an opening is formed
at another end, and upper and lower guide rails forming a guide groove for inserting the circuit board are included on each
internal side surface; and

a lid cover for closing an open surface of the lid cover mounting part, the circuit board being held by the guide groove formed
in an internal space of the case body, wherein

an elastically deformable engaging part is provided at the circuit board or the case body, an engaged part for complementarily
engaging with the engaging part is provided at the circuit board or the case body,

the engaging part is deformed when the circuit board is slid and housed in the guide groove formed inside the case body, and
the engaging part is engaged with the engaged part formed at the circuit board or the case body when the circuit board reaches
a predetermined position, wherein

the engaging part is integrally formed with each side of the lid cover,
the lid cover and the circuit board are integrally configured, and
when the circuit board is inserted into the guide groove and reaches the predetermined position, the engaging part engages
with a locking part serving as the engaged part formed at the guide rail.

US Pat. No. 9,103,311

FUEL INJECTION VALVE

Hitachi Automotive System...

1. A fuel injection valve comprising:
a conical valve seat surface that abuts a valve body to seat fuel; and
a plurality of fuel injection orifices having an inlet opening formed on the valve seat surface,
wherein fuel sprays injected from the plurality of fuel injection orifices include a first fuel spray constituted by a fuel
spray injected from at least one fuel injection orifice and a second fuel spray constituted by a plurality of fuel sprays
injected at an outer periphery of the first fuel spray, and

a fuel injection orifice that injects the first fuel spray is constituted such that a plane that includes an orifice axis
connecting a center of an inlet with a center of an outlet of the fuel injection orifice and is parallel to a center axis
of the fuel injection valve intersects a plane including a straight line passing through the center of the inlet of the fuel
injection orifice and a conical apex that forms the valve seat surface as well as the center axis of the fuel injection valve
to form an inclination angle that is larger than 0°.

US Pat. No. 9,410,514

VARIABLE DISPLACEMENT OIL PUMP

HITACHI AUTOMOTIVE SYSTEM...

1. A variable displacement oil pump comprising:
a pump structural unit adapted to be driven by an internal combustion engine for varying a volume of each of a plurality of
working chambers and for discharging oil, drawn into an inlet portion, from a discharge portion;

a variable-volume mechanism configured to vary a variation of the volume of each of the working chambers, wherein the chambers
open into the discharge portion, by a displacement of a moveable member included in the pump structural unit;

a first biasing member for forcing the movable member in a biased direction that the variation of the volume of each of the
working chambers increases;

a control chamber configured to change a displaced position of the moveable member by introducing the oil, discharged from
the discharge portion, into the control chamber;

a directional control valve including a spool having a pressure-receiving section for receiving a discharge pressure from
the discharge portion and slidably installed in a close-fitting bore into which a communication passage opens and which communicates
with the control chamber, a second biasing member for forcing the spool in one sliding direction opposite to another sliding
direction of the spool corresponding to a direction of action of the discharge pressure acting on the pressure-receiving section
of the spool, a movable support slidably located at a position being axially opposite to the spool, sandwiching the second
biasing member between the spool and the movable support, the movable support being configured to be forced in a same axial
direction as the another sliding direction of the spool by the second biasing member, and a pressure-receiving chamber defined
between the movable support and a bottom of the close-fitting bore, the directional control valve being configured to selectively
switch between an oil-discharge from the control chamber and an oil-introduction from the discharge portion to the control
chamber by a sliding movement of the spool resulting from a relative pressure force between a biasing force created by the
discharge pressure and a biasing force of the second biasing member; and

a control mechanism disposed between the discharge portion and the directional control valve and configured to control the
sliding movement of the spool by electrically controlling switching between a supply mode at which the discharge pressure
is supplied from the discharge portion to the pressure-receiving chamber via the control mechanism and a drain mode at which
fluid communication between the discharge portion and the pressure-receiving chamber is blocked and an oil-discharge from
the pressure-receiving chamber via the control mechanism is permitted, thereby displacing the movable support.

US Pat. No. 9,222,814

FLOW SENSOR AND MANUFACTURING METHOD OF THE SAME AND FLOW SENSOR MODULE AND MANUFACTURING METHOD OF THE SAME

Hitachi Automotive System...

1. A flow sensor module comprising:
a flow sensor in which a semiconductor chip is sealed with a first resin, the semiconductor chip including a flow sensing
unit formed on a thin plate part, while having the flow sensing unit exposed; and

a second resin formed so as to embed the first resin, while having the flow sensing unit exposed;
wherein the second resin is formed with a groove, and
the flow sensing unit of the flow sensor is disposed in the groove.

US Pat. No. 9,134,153

FLOWMETER

Hitachi Automotive System...

1. A flowmeter comprising:
a silicon substrate having a diaphragm where a heater is disposed;
an aluminum film including an aluminum pad or an aluminum wire disposed on the silicon substrate;
an organic protective film laminated on the silicon substrate; and
a mold resin that covers the silicon substrate,
wherein the diaphragm has an exposed portion exposed from the organic protective film,
wherein an adhesion film having a high adhesion property to the mold resin is laminated on the silicon substrate,
wherein an adhesion surface of the mold resin adhering to the adhesion film is provided between the exposed portion and the
aluminum pad, and

wherein the organic protective film comprises:
a first organic protective film disposed to surround the diaphragm; and
a second organic protective film disposed to surround an edge of the diaphragm.

US Pat. No. 9,309,948

SHOCK ABSORBER

HITACHI AUTOMOTIVE SYSTEM...

1. A shock absorber comprising:
a cylinder sealingly containing hydraulic fluid;
a piston slidably and fittedly inserted in the cylinder;
a piston rod coupled to the piston, and extending out of the cylinder; and
a damping force generation mechanism configured to generate a damping force by controlling a flow of the hydraulic fluid generated
by a sliding movement of the piston,

wherein the damping force generation mechanism includes a main valve configured to generate the damping force, a back pressure
chamber configured to apply a back pressure in a direction for closing the main valve, an introduction passage configured
to guide the back pressure into the back pressure chamber, a discharge passage configured to discharge the back pressure in
the back pressure chamber, and a control valve disposed in the discharge passage,

wherein the control valve includes a valve body disposed in the discharge passage, a valve seat, an actuator configured to
generate a force for moving the valve body toward the valve seat according to a current, and a spring unit configured to bias
the valve body in a direction opposite from a direction in which the valve body is moved by the actuator,

wherein the spring unit includes one member configured to act on the valve body throughout a whole range of the movement of
the valve body, and a limiting member configured to limit a deflection of a part of the spring member by abutting a predetermined
portion of the spring member against the limiting member with a predetermined deflection of the spring member when the valve
body is moved toward the valve seat, and

wherein the spring member has a spring constant acting on the valve body due to a deflection of another part of the spring
member at which a deflection is not limited, after limitation of the deflection of the spring member by the limiting member,
which is higher than that of the spring member before limiting the deflection of the spring member.

US Pat. No. 9,188,470

THERMAL FLOW METER

Hitachi Automotive System...

1. A thermal flow meter comprising:
a subsidiary passage having an opening portion through which a fluid to be measured is to be drawn in; and
a sensor element disposed in the subsidiary passage, the sensor element for measuring a flow rate of the fluid to be measured;
wherein the sensor element includes:
a semiconductor substrate;
a cavity portion formed in the semiconductor substrate;
a heating resistor formed on the cavity portion via an electrically insulating film;
a heating temperature sensor for detecting heating temperature of the heating resistor; and
a driving circuit for controlling the heating temperature of the heating resistor using the temperature detected by the heating
temperature sensor; and

wherein the heating temperature sensor comprises temperature-sensitive resistors having resistance values varying according
to temperature and disposed upstream and downstream of the heating resistor in a direction of flow of the fluid to be measured
relative to the heating resistor and disposed on upper and lower sides of the heating resistor in a direction perpendicular
to the direction of flow of the fluid to be measured relative to the heating resistor.

US Pat. No. 9,078,376

POWER CONVERSION DEVICE

Hitachi Automotive System...

1. A power conversion device comprising:
a flow passage casing in which a flow passage through which a cooling medium flows is formed and an opening portion which
is communicated with the flow passage is formed;

a power module having a bottomed cylindrical portion in which a power semiconductor element is housed and which is inserted
into the flow passage through the opening portion, a first group of radiator fins which are mounted on an outer peripheral
surface of the cylindrical portion, and a second group of radiator fins which are mounted on the outer peripheral surface
of the cylindrical portion;

a first flow passage control member which introduces the cooling medium into the first group of radiator fins;
a second flow passage control member which is arranged opposite to the first flow passage control member with the bottomed
cylindrical portion sandwiched therebetween, and introduces the cooling medium into the second group of radiator fins; and

a seal member having a ring portion which connects the first flow passage control member and the second flow passage control
member, wherein

power is converted into AC power from DC power or into DC power from AC power by a switching operation of the power semiconductor
element, and

the seal member is mounted on the bottomed cylindrical portion.

US Pat. No. 9,236,590

ELECTRIC STORAGE MODULE AND ELECTRIC STORAGE DEVICE

Hitachi Automotive System...

1. An electric storage module, comprising:
a cooling plate with a predetermined thickness between a front surface and a rear surface, with the front surface and the
rear surface functioning as cooling surfaces by a coolant flowing in the cooling plate, the cooling plate being disposed so
that the front surface and the rear surface are substantially perpendicular to a mounting surface;

a first battery row made up with a plurality of prismatic battery cells coupled with the front surface of the cooling plate
so as to achieve thermal conduction and to be cooled by the cooling plate, wherein in the first battery row the plurality
of battery cells are disposed over a plurality of stages stacked along a direction perpendicular to the mounting surface and
arrayed along the cooling plate with battery case bottom surfaces of the battery cells facing the front surface of the cooling
plate;

a second battery row made up with a plurality of prismatic battery cells coupled with the rear surface of the cooling plate
so as to achieve thermal conduction and to be cooled by the cooling plate, wherein in the second battery row the plurality
of battery cells are disposed over a plurality of stages stacked along the direction perpendicular to the mounting surface
and arrayed along the cooling plate with battery case bottom surfaces of the battery cells facing the rear surface of the
cooling plate;

a pair of end plates that cover the first battery row and the second battery row, one of the end plates being disposed at
one side of the direction along which the battery cells are stacked and another of the end plates being disposed at another
side of the direction along which the battery cells are stacked;

a first terminal cover disposed at a side of the first battery row opposite from the cooling plate;
a second terminal cover disposed at a side of the second battery row opposite from the cooling plate;
a first locking device that locks, via the pair of end plates, the battery cells of the first battery row and the battery
cells of the second battery row with the cooling plate; and

a second locking device that presses the battery cells of the first battery row toward the front surface of the cooling plate
via the first terminal cover and presses the battery cells of the second battery row toward the rear surface of the cooling
plate via the second terminal cover.

US Pat. No. 9,145,796

CONTROL UNIT FOR VARIABLE VALVE TIMING MECHANISM AND CONTROL METHOD FOR VARIABLE VALVE TIMING MECHANISM

HITACHI AUTOMOTIVE SYSTEM...

10. A control method for a variable valve timing mechanism for changing a cam phase by an actuator, comprising:
adjusting the variable valve timing mechanism to a valve timing suitable for starting an engine when the engine is stopped,
estimating, by an electronic control unit for controlling the variable valve timing mechanism, a cam torque based on an engine
rotation angle and a cam phase angle in an engine stop state, and

correcting, by the electronic control unit, an operation amount of the actuator immediately after the engine is started so
as to cancel the estimated cam torque.

US Pat. No. 9,093,776

ELECTRONIC CONTROL DEVICE

HITACHI AUTOMOTIVE SYSTEM...

1. An electronic control device comprising:
a circuit board;
a connector disposed on one side of the circuit board, the connector being provided with connector pins having a board connecting
portion at which the connector pins are electrically connected with the circuit board;

first and second housing members accommodating the circuit board and the connector therebetween such that the connector is
opposed to a peripheral edge portion of the first housing member and a peripheral edge portion of the second housing member;

a waterproof seal portion through which connection between the connector and the first and second housing members and connection
between the first and second housing members are provided in a fluid-tight manner, the waterproof seal portion comprising
a connector-side waterproof seal portion disposed between the connector and the first housing member which is opposed to the
board connecting portion of the connector pins; and

a barrier portion disposed between the board connecting portion of the connector pins and the connector-side waterproof seal
portion.

US Pat. No. 9,505,393

BRAKE DEVICE

Hitachi Automotive System...

1. A brake device comprising:
a fluid path of a primary system equipped with a plurality of wheel cylinders, which are pressurized by a master cylinder
pressure produced by a first chamber of a master cylinder that produces a brake fluid pressure by a pedal operation by a driver;

a fluid path of a secondary system equipped with a plurality of wheel cylinders, which are pressurized by a master cylinder
pressure produced by a second chamber of the master cylinder;

a communicating fluid path configured to connect the fluid path of the primary system and the fluid path of the secondary
system;

a pump configured to discharge brake fluid into the communicating fluid path;
a first communicating valve disposed in the communicating fluid path for restricting a flow of the brake fluid from the communicating
fluid path to the fluid path of the primary system;

a second communicating valve disposed in the communicating fluid path for restricting a flow of the brake fluid from the communicating
fluid path to the fluid path of the secondary system;

a reflux fluid path provided between at least one communicating valve of the first communicating valve and the second communicating
valve and the pump for returning the brake fluid discharged into the communicating fluid path back to a suction side of the
pump; and

a controller having a pump-state check part for checking at least a state of the pump by driving the pump and by controlling
the first communicating valve and the second communicating valve in respective valve-closing directions, wherein

the controller has a one-sided system fluid pressure control part configured to control one communicating valve of the first
communicating valve and the second communicating valve in a valve-opening direction, and to control the other communicating
valve in a valve-closing direction, and to drive the pump, so as to deliver the brake fluid into the fluid path of the system
whose communicating valve has been controlled in the valve-opening direction.

US Pat. No. 9,404,975

BATTERY MONITORING SYSTEM

Hitachi, Ltd., Tokyo (JP...

1. A battery monitoring system, comprising:
an integrated circuit that includes a voltage measurement unit measuring a cell voltage value of each of a plurality of battery
cells connected in series;

a plurality of voltage measurement lines that connect positive and negative electrodes of the plurality of battery cells and
the integrated circuit; and

a control circuit that monitors state of each of the plurality of battery cells, based on the cell voltage value measured
by the voltage measurement unit, wherein:

the integrated circuit includes a pseudo voltage generation unit that generates a pseudo voltage;
the voltage measurement unit includes:
a selection circuit that selects a pair of voltage measurement lines connected to a positive and a negative electrodes of
a battery cell that is to be a subject of measurement; and

a detection circuit that detects a voltage between the pair of voltage measurement lines selected by the selection circuit;
the control circuit inputs the pseudo voltage, instead of the voltage between the pair of voltage measurement lines, to input
terminals of the selection circuit and diagnoses state of selection by the selection circuit based on a voltage value detected
by the detection circuit;

a resistor is provided to each of the plurality of voltage measurement lines:
the integrated circuit includes a discharge circuit that discharges the battery cell so that a discharge current flows in
the resistor, as the pseudo voltage generation unit; and

the control circuit diagnoses the state of selection by the selection circuit, based on a first voltage that is detected by
the detection circuit when discharge by the discharge circuit is not executed and a second voltage that is detected by the
detection circuit when discharge by the discharge circuit is executed.

US Pat. No. 9,362,261

POWER SEMICONDUCTOR MODULE

Hitachi Automotive System...

1. A power semiconductor inverter comprising:
a first power semiconductor device for forming an upper arm of an inverter circuit;
a second power semiconductor device for forming a lower arm of the inverter circuit;
a first conductor unit which is opposed to the first power semiconductor device;
a second conductor unit which is opposed to the first conductor unit across the first power semiconductor device;
a third conductor unit which is opposed to the second power semiconductor device;
a fourth conductor unit which is opposed to the third conductor unit across the second power semiconductor device;
a first intermediate conductor unit which extends from the first conductor unit;
a second intermediate conductor unit which extends from the fourth conductor unit and is formed to be opposed to the first
intermediate conductor unit;

a positive electrode side first terminal and a positive electrode side second terminal which project from the first intermediate
conductor unit; and

a negative electrode side first terminal and a negative electrode side second terminal which project from the second intermediate
conductor unit,

wherein the negative electrode side first terminal is nearer to the positive electrode side first terminal than to the negative
electrode side second terminal, and arranged in a position adjacent to the positive electrode side first terminal, and

the negative electrode side second terminal is nearer to the positive electrode side second terminal than to the negative
electrode side first terminal, and is arranged in a position adjacent to the positive electrode side second terminal.

US Pat. No. 9,255,957

EARTH FAULT DETECTION CIRCUIT AND POWER SOURCE DEVICE

HITACHI AUTOMOTIVE SYSTEM...

1. An earth fault detection circuit for detecting an earth fault between a high-voltage battery and a motor, said earth fault
detection circuit comprising:
an A.C. signal generation portion for generating an A.C. signal;
a first capacitive element provided between said A.C. signal generation portion and one end side of said high-voltage battery;
a voltage dividing circuit for dividing a voltage on said one end side of said high-voltage battery;
an earth fault detection portion for detecting the earth fault between said high-voltage battery and said motor based on an
earth fault detection signal inputted thereto; and

a second capacitive element provided between said voltage dividing circuit and said earth fault detection portion, the second
capacitive element being used for inputting to said earth fault detection portion as the earth fault detection signal an A.C.
component of the voltage, on the one end side of said high-voltage battery, which is obtained by the voltage division in said
voltage dividing circuit,

wherein said earth fault detection portion determines a level of a noise between said high-voltage battery and said motor
based on a result of measurement of the earth fault detection signal made when the A.C. signal is not generated by said A.C.
signal generation portion, and a result of measurement of the earth fault detection signal made when the A.C. signal is generated
by said A.C. signal generation portion, thereby detecting the earth fault, and

wherein said earth fault detection portion compares a result of measurement of the earth fault detection signal made when
no A.C. signal is generated by said A.C. signal generation portion, with a result of measurement of the earth fault detection
signal made when the A.C. signal is generated by said A.C. signal generation portion, and determines the level of a noise
between said high-voltage battery and said motor based on the comparison result.

US Pat. No. 9,222,813

FLOW SENSOR AND MANUFACTURING METHOD OF THE SAME AND FLOW SENSOR MODULE AND MANUFACTURING METHOD OF THE SAME

Hitachi Automotive System...

1. A flow sensor comprising:
(a) a chip mounting unit mounting a semiconductor chip; and
(b) the semiconductor chip mounted on the chip mounting unit, the semiconductor chip having a flow sensing unit formed in
a thin plate part;

wherein the semiconductor chip is a flow sensor in which at least a part of the chip mounting unit is sealed with a sealing
body containing resin in a state that the flow sensing unit is exposed, and

wherein, in an optional cross-section parallel to a travelling direction of a gas that flows above the exposed flow sensing
unit, an upper surface of the resin is lower than an upper surface of the semiconductor chip in a first region in which the
sealing body is in contact with the semiconductor chip, and, the upper surface of the resin is higher than the upper surface
of the semiconductor chip in at least a part of a second region that is more apart from the semiconductor chip than the first
region.

US Pat. No. 9,206,690

VARIABLE DISPLACEMENT PUMP

Hitachi Automotive System...

1. A variable displacement pump comprising:
a rotor driven to rotate;
a plurality of vanes which are disposed at an outer circumference portion of the rotor, and each of which is arranged to be
moved in a radially inward direction and in a radially outward direction of the rotor;

a cam ring which receives the rotor and the vanes therein, which separates a plurality of hydraulic chambers with the rotor
and the vanes, and which is arranged to be moved to vary an eccentric amount of a center of an inner circumference surface
of the cam ring with respect to a center of a rotation of the rotor, and thereby to increase or decrease volumes of the hydraulic
chambers at the rotation of the rotor;

side walls provided on both sides of the cam ring in an axial direction, one of the side walls including a suction portion
and a discharge portion,

the suction portion being opened to the hydraulic chambers whose volumes are increased when the cam ring is moved in a direction
to increase the eccentric amount of the cam ring, and

the discharge portion being separated from the suction portion, in a direction of the rotation of the rotor by separation
walls each having a circumferential width greater than a circumferential width of the hydraulic chambers, and which is opened
to the hydraulic chambers whose volumes are decreased when the cam ring is moved in the direction to increase the eccentric
amount of the cam ring;

an urging member arranged to urge the cam ring in the direction to increase the eccentric amount of the cam ring;
a control hydraulic chamber arranged to receive a discharge pressure, and generate a force with said discharge pressure to
urge the cam ring in a direction to decrease the eccentric amount of the cam ring, against the urging force of the urging
member; and

an introduction passage, wherein the introduction passage is formed in one of the separation walls across which the hydraulic
chambers pass over when the hydraulic chambers are moved from the suction portion to the discharge portion,

wherein the introduction passage is arranged such that a connection between one of the hydraulic chambers and the control
hydraulic chamber is shut off by an axial end surface of the cam ring when the cam ring is in a maximum eccentric state, and
the one of the hydraulic chambers and the control hydraulic chamber is connected through the introduction passage by movement
of the cam ring in the direction to decrease the eccentric amount of the cam ring, thereby introducing the discharge pressure
within the control hydraulic chamber into the one of the hydraulic chambers.

US Pat. No. 9,095,924

WELDED CONSTRUCTION AND RESISTANCE WELDING METHOD

Hitachi Automotive System...

1. A welded construction in which a first metallic member, on one surface of which a projecting portion is formed and on the
other surface of which a depressed portion corresponding to the projecting portion is formed, and a second metallic member
are welded together at a welded portion which includes a summit portion of the projecting portion;
wherein, on at least one of the first metallic member and the second metallic member, on its opposite surface to its surface
that faces the other one of the metallic members, a recessed portion is formed that is recessed from its peripheral region
towards a region which corresponds to the welded portion; and

wherein the first metallic member is made from copper, and the second metallic member is made from nickel.

US Pat. No. 9,506,378

VARIABLE VALVE TIMING CONTROL APPARATUS OF INTERNAL COMBUSTION ENGINE

HITACHI AUTOMOTIVE SYSTEM...

1. A variable valve timing control apparatus of an internal combustion engine, comprising:
a drive rotary member to which a turning force is transmitted from an engine crankshaft and which has therein working chambers;
a vane rotor relatively rotatably housed in the drive rotary member and defining the working chambers as a retard working
chamber and an advance working chamber, the vane rotor having

(a) a tubular portion that is formed integrally with the vane rotor and protrudes from a middle position of one end side in
an axial direction of the vane rotor to an outside of the drive rotary member; and

(b) a recessed portion that is formed on an outer peripheral surface of the tubular portion and is recessed in a radially
inward direction on the outer peripheral surface of the tubular portion, the recessed portion having side wall surfaces on
both sides in the axial direction of the recessed portion; and

a spiral spring forcing the vane rotor all the time in one rotation direction with respect to the drive rotary member, and
an engaging end of an outermost circumferential portion of the spiral spring being engaged with the drive rotary member, and
an engaging end of an innermost circumferential portion of the spiral spring being engaged with the tubular portion, and

a part of the innermost circumferential portion of the spiral spring being inserted in the recessed portion.

US Pat. No. 9,322,375

FUEL INJECTION VALVE

Hitachi Automotive System...

1. A fuel injection valve, comprising:
a slidably installed valve element;
a nozzle body having a valve seat surface formed thereon where the valve element is seated when the valve is closed and an
opening formed on a downstream side of a fuel flow from the valve seat surface;

a path for swirling communicated with the opening of the nozzle body and formed, relative to the nozzle body, on a downstream
side of the fuel flow from the opening;

a swirling chamber formed, relative to the path for swirling, on a downstream side of the fuel flow the swirling chamber having
a cylindrical inner surface and swirling fuel therein thereby providing the fuel with a swirling force; and

a fuel injection orifice cylindrically formed at a bottom of the swirling chamber to outwardly spray fuel, wherein
the path for swirling includes a curved portion formed adjacent to the opening in a valve axis direction, the curved portion
guiding a fuel flow to a radial direction from the valve axis direction.

US Pat. No. 9,480,189

ELECTRONIC CONTROL APPARATUS

Hitachi Automotive System...

1. An electronic control apparatus accommodating, in a space inside an enclosure formed by connecting a plurality of enclosure
members together, a circuit board on which a plurality of heat-generating electronic components that generate heat are mounted,
comprising:
a recessed portion formed in a position facing each heat-generating electronic component in the enclosure member that faces
each heat-generating electronic component, and

a component clearance being formed between an inner wall surface of the recessed portion and each heat-generating electronic
component,

a peripheral clearance, which is set with a distance from an opening edge of the recessed portion to the circuit board being
a reference, being formed between the circuit board and the enclosure member on at least one peripheral edge side of each
heat-generating electronic component, and

hollows disposed between the plurality of heat-generating electronic components communicating with each other through the
peripheral clearance.

US Pat. No. 9,429,207

CYLINDER APPARATUS INCLUDING PLATED COMPONENT AND MANUFACTURING METHOD THEREOF

HITACHI AUTOMOTIVE SYSTEM...

1. A cylinder apparatus comprising a cylinder having a hydraulic fluid sealed therein, a piston axially slidably fitted in
the cylinder, and a rod, a first axial end of the rod being connected to the piston and a second axial end of the rod extending
to an outside of the cylinder, the rod being a plated component obtained by plating one of a steel bar and a steel pipe, and
the plated component comprising:
a plated portion having been subjected to quenching and plating;
a non-plated portion provided at a position axially different from the plated portion, the non-plated portion having been
subjected to quenching and not subjected to plating; and

a machined portion provided between the plated portion and the non-plated portion, the machined portion having been subjected
to one of plastic working and cutting and not subjected to either of quenching and plating.

US Pat. No. 9,422,884

INTERNAL COMBUSTION ENGINE CONTROL SYSTEM WITH INJECTOR VALVE TIMING CONTROL

Hitachi Automotive System...

1. An internal combustion engine control system, comprising: an injector configured to supply fuel to an internal combustion
engine; means for calculating power distribution time for the injector; means for detecting a valve opening of the injector;
and means for calculating and storing valve opening delay time, the valve opening delay time being a difference between a
power distribution start time and a valve opening detection time,
wherein, in a case in which the power distribution time for the injector is not less than a predetermined value, the valve
opening delay time is calculated and stored, and in a case in which the power distribution time for the injector is less than
the predetermined value, the power distribution time for the injector is controlled based on the valve opening delay time
stored in the storing means.

US Pat. No. 9,253,001

PULSE SIGNAL OUTPUTTING APPARATUS

Hitachi Automotive System...

1. A pulse signal outputting apparatus which includes physical amount detecting means for detecting a physical amount, and
modulating means for performing pulse modulation on output information obtained from the physical amount detecting means,
and which outputs a pulse signal generated by the modulating means,
wherein the modulating means includes:
a calculation circuit that has a pull-up resistor which is connected to a power supply;
a general-purpose input/output terminal that is connected to the calculation circuit;
input/output selecting means for selecting whether the general-purpose input/output terminal is used as an input terminal
or an output terminal;

pull-up resistor connecting means for connecting or disconnecting the pull-up resistor and the general-purpose input/output
terminal; and

a pull-up resistor connection control circuit that performs control so that the pull-up resistor connecting means is operated
when the general-purpose input/output terminal is selected as the input terminal,

wherein the general-purpose input/output terminal is selected as the input terminal by the input/output selecting means when
a transition of an output signal level of the pulse signal starts,

wherein the pull-up resistor and the general-purpose input/output terminal are connected by the pull-up resistor connecting
means when the general-purpose input/output terminal is selected as the input terminal, and

wherein the general-purpose input/output terminal is switched to the output terminal by the input/output selecting means after
a certain period of time is passed.

US Pat. No. 9,229,025

INERTIAL SENSOR

Hitachi Automotive System...

1. An inertial sensor, comprising:
a first substrate to be installed in a vehicle;
a first cavity formed on the first substrate;
a first fixed part formed in the first cavity;
a first elastically deformed part formed in the cavity and connected to the fixed part;
a first movable part formed in the first cavity and connected to the elastically deformed part;
a first capacity sensing element which includes a first capacitative element that mutually opposes a first fixed electrode
formed in the first cavity and a first movable electrode formed in the movable part and which outputs variation of capacity
of the first capacitative element caused when the movable part is displaced by an external force;

a first physical quantity calculation terminal connected to a first physical quantity calculating device that calculates a
physical quantity of the external force based upon the variation of the capacity output from the first capacity sensing element;

a forced oscillation generating device which includes a second capacitative element that mutually opposes a second fixed electrode
formed in the first cavity and a second movable electrode formed in the movable part, which includes a terminal for applying
a diagnostic signal between the second fixed electrode and the second movable electrode and which generates electrostatic
force between the second fixed electrode and the second movable electrode by applying a diagnostic signal to the terminal
for applying the diagnostic signal and forcedly oscillates them;

an abnormality determination device which is indirectly connected to the first physical quantity calculation terminal and
which judges whether the inertial sensor is abnormal or not based upon forced oscillation generated in the forced oscillation
generating device;

a second substrate to be installed in the vehicle;
a second cavity formed on the second substrate;
a second fixed part formed in the second cavity;
a second elastically deformed part formed in the second cavity and connected to the second fixed part;
a second movable part formed in the second cavity and connected to the second elastically deformed part;
a second capacity sensing element which includes a third capacitative element that mutually opposes a third fixed electrode
formed in the second cavity and a third movable electrode formed in the second movable part and which outputs variation of
capacity of the third capacitative element caused when the second movable part is displaced by an external force; and

a second physical quantity calculation terminal connected to a second physical quantity calculating device that calculates
physical quantity of the external force based upon the variation of the capacity output from the second capacity sensing element,
wherein:

in the abnormality determination device, a result of determining abnormality is determined depending upon a value acquired
from the second physical quantity calculation terminal.

US Pat. No. 9,143,065

MOTOR DRIVE DEVICE

Hitachi Automotive System...

1. A motor drive device configured to
sample, at a first predetermined timing, a first detection signal and a second detection signal from a first rotation position
sensor of a motor to obtain a sampling value of the first detection signal and a sampling value of the second detection signal;

detect a rotation position of the motor based on the sampling values; and
apply a voltage according to the detected rotation position to the motor,
wherein the motor drive device is configured to
apply a first voltage to the motor in a first state based on the sampling value of the first detection signal and the sampling
value of the second detection signal, when a square sum of the sampling value of the first detection signal and the sampling
value of the second detection signal is a predetermined value; and

apply a second voltage to the motor in a second state based on the sampling value of the first detection signal and a sampling
value of the second detection signal at a second predetermined timing, when the square sum is not the predetermined value.

US Pat. No. 9,133,776

CONTROL APPARATUS AND CONTROL METHOD FOR INTERNAL-COMBUSTION ENGINE

HITACHI AUTOMOTIVE SYSTEM...

1. A control apparatus for an internal-combustion engine, comprising:
a forward and reverse rotation determining unit which determines whether a crankshaft of the internal-combustion engine is
rotated in a forward direction or a reverse direction;

a stop position detecting unit which detects a crank angle at a time of stopping the internal-combustion engine on the basis
of the determination of a rotating direction by the forward and reverse rotation determining unit;

a diagnosing unit which compares a crank angle estimated on the basis of the crank angle at the time of stopping the internal-combustion
engine detected by the stop position detecting unit and a crank angle detected after the internal-combustion engine is started
to thereby determine whether the forward and reverse rotation determining unit is abnormal or not;

an idle reduction control unit which automatically stops the internal-combustion engine in a case in which a preset stop condition
is established and which automatically restarts the internal-combustion engine in a case in which a preset restart condition
is established; and

a control prohibiting unit which prohibits the idle reduction control unit from automatically stopping the internal-combustion
engine on the basis of the crank angle which is estimated on the basis of the crank angle at the time of stopping the internal-combustion
engine in a case in which the diagnosing unit determines that the forward and reverse rotation determining unit is abnormal.

US Pat. No. 9,500,086

IMPELLER AND ELECTRIC-MOTOR DRIVEN WATER PUMP HAVING THE SAME

Hitachi Automotive System...

1. An impeller comprising:
a hub configured to be rotated on a central axis of a rotor;
a shroud formed to be opposed to the hub in a direction of the central axis and having a central opening serving as a fluid
inlet; and

a plurality of circumferentially-equidistant spaced blades interleaved between the hub and the shroud,
wherein, when a mating face of the shroud with each of the blades is divided into a radially inward region and a radially
outward region, and a mating face of each of the blades with the shroud is divided into a radially inward region and a radially
outward region, a given weld range is set only in the radially inward region of the mating face of the shroud with each of
the blades and the radially inward region of the mating face of each of the blades with the shroud,

wherein the radially inward region of the mating face of the shroud with each of the blades and the radially inward region
of the mating face of each of the blades with the shroud are formed as flat mating surfaces extending in a direction perpendicular
to the direction of the central axis,

wherein the radially outward region of the mating face of the shroud with each of the blades and the radially outward region
of the mating face of each of the blades with the shroud are formed as radially-outward tapered mating surfaces tapered toward
the rotor, and

wherein the given welded range is a welded area defined between a radius r1 of the central opening of the shroud and a radius
r1+(r2?r1)/2 of a boundary between the flat mating surfaces and the tapered mating surfaces, where an inside diameter of the
central opening of the shroud is denoted by 2×r1, and an outside diameter of each of the blades is denoted by 2×r2.

US Pat. No. 9,365,792

COATING FILM FORMATION METHOD

HITACHI AUTOMOTIVE SYSTEM...

1. A method for forming a multilayer solid lubricant coating film on an external surface of a skirt portion of a piston in
an internal combustion engine, by comprising the steps of:
preparing an inner solid lubricant coating film from a material containing at least graphite;
applying the inner solid lubricant coating film on the external surface of the skirt portion, followed by irradiating the
film with a laser beam to dry the film;

applying an outermost layer solid lubricant coating film, followed by conducting a baking treatment thereon; and
changing the energy density of the laser beam according to heat radiation of the skirt portion.

US Pat. No. 9,203,273

ROTATING ELECTRICAL MACHINE

Hitachi Automotive System...

1. A rotating electrical machine, comprising:
a stator that includes a stator core and a stator coil;
a rotor that rotates with respect to the stator;
a refrigerant supply port through which a cooling medium is supplied to a coil end protruding from the stator core; and
a guide member, disposed along at least a part of the coil end, for causing the cooling medium supplied through the refrigerant
supply port to flow along the coil end, wherein:

the guide member has a substantially semi-circular first guide member opening downward and a substantially semi-circular second
guide member opening upward,

the first guide member is disposed along an inner circumference of the upper half portion of the coil end,
the second guide member is disposed along an outer circumference of the lower half portion of the coil end, and
the width of the first guide member that is substantially equal to the inner circumference diameter of the stator coil is
less than the width of the second guide member that is substantially equal to the outer circumference diameter of the stator
coil.

US Pat. No. 9,157,403

FUEL INJECTION VALVE

HITACHI AUTOMOTIVE SYSTEM...

1. A fuel injection valve comprising:
a movable valve element;
a valve seat member having a valve seat on which the valve element is seated to establish a valve closing condition, the valve
seat member being formed with an opening located at a downstream side of the valve seat member;

a first section defining a swirl imparting chamber for imparting a swirl force to fuel within the swirl imparting chamber
by turning fuel;

a second section defining an injection hole opened to a bottom of the swirl imparting chamber to inject fuel to outside; and
a third section defining a communication passage connecting the swirl imparting chamber with the opening of the valve seat
member,

wherein the swirl imparting chamber and the communication passage are formed to satisfy the following equations:
0.15?W/D<0.5; and

H/D?0.15;

wherein W is a width of the communication passage, D is a diameter of the swirl imparting chamber, and H is a height of the
communication passage.

US Pat. No. 9,110,842

CONTROL DEVICE FOR VEHICLE AND ERROR PROCESSING METHOD IN CONTROL DEVICE FOR VEHICLE

HITACHI AUTOMOTIVE SYSTEM...

1. A control device for a vehicle comprising:
a nonvolatile memory which is electrically erasable and writable;
an error detection unit which detects, on start-up, whether an error has occurred in updated data in the nonvolatile memory;
a reset unit which performs a reset when an error is detected by the error detection unit; and
a rewrite unit which rewrites, when the control device is restarted by the reset, updated data in which the error has occurred
with a predetermined value that is determined prior to error detection by the error detection unit.

US Pat. No. 9,661,765

ELECTRONIC CONTROL DEVICE

Hitachi Automotive System...

1. An electronic control device comprising:
a housing having a housing base with opposed inner wall surfaces, a partition wall with an insertion hole, and a connector
inserting section used for electrical connection with an external mating connector;

a circuit board having an electronic component thereon, wherein the circuit board has an insertable side and is insertable
through the insertion hole of the partition wall so that the part of the circuit board is exposed within the connector inserting
section; and

an elastic metal part disposed in the housing, the elastic metal part has a first distal end and a second distal end, the
first distal end being connected to a first position on the insertable side of the circuit board and supports the circuit
board.

US Pat. No. 9,500,240

DISK BRAKE

HITACHI AUTOMOTIVE SYSTEM...

1. A disk brake comprising:
a caliper configured to press a pad against a disk by a piston slidably disposed in a cylinder; and
a piston driving mechanism disposed in the caliper, and configured to move the piston by a driving force of an electric motor,
wherein the piston driving mechanism includes a single housing to which the electric motor is fixed, the single housing containing
a speed reduction mechanism configured to transmit the driving force of the electric motor,

wherein a connector portion is formed at the single housing, the connector portion including a supply terminal for supplying
power to the electric motor, and a plate-like member for rotatably supporting the speed reduction mechanism is provided at
the single housing,

wherein the plate-like member divides the single housing into a first area where the speed reduction mechanism is located
and a second area where the speed reduction mechanism is not located,

wherein the supply terminal is formed so as to have one end penetrating through a wall portion between the connector portion
and the housing, and the other end extending in the second area of the housing,

wherein the electric motor has a motor terminal extending in the second area of the housing toward the plate-like member in
a same direction as a direction in which a rotational shaft of the electric motor extends,

wherein the other end of the supply terminal and the motor terminal are connected to each other via a bus bar made of a metallic
plate, and

wherein the bus bar is supported by the plate-like member, and is arranged in the second area between the electric motor and
the plate-like member.

US Pat. No. 9,494,118

FUEL DELIVERY SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

Hitachi Automotive System...

1. A fuel delivery system for an internal combustion engine comprising:
a fuel rail defining an internal fuel chamber,
at least two fuel injectors fluidly open to the fuel rail internal fuel chamber,
at least one fluid check valve fluidly positioned in the internal fuel chamber of the fuel rail between two fuel injectors
and dividing said internal fuel chamber into adjacent subchambers, said check valve movable between a closed position in which
said check valve fluidly isolates said subchambers from each other and an open position in which said subchambers fluidly
communicate with each other.

US Pat. No. 9,413,256

CONTROL DEVICE OF DC-DC CONVERTER

Hitachi Automotive System...

1. A control device of a DC-DC converter that is constituted by a primary side circuit that is electrically connected between
an input side and a transformer, and a secondary side circuit that is electrically connected between an output side and the
transformer, comprising:
a command generating unit that sets an output current limiting value of the secondary side circuit to a predetermined value
on the basis of a detected input voltage of the primary side circuit;

a duty generating unit that calculates a duty configured to turn ON/OFF a switching element that constitutes the primary side
circuit on the basis of the output current limiting value that is set by the command generating unit, and a detected output
current of the secondary side circuit; and

a switching signal generating unit that generates a switching signal of the primary side circuit on the basis of the duty
that is calculated by the duty generating unit,

wherein the duty generating unit generates the duty in such a manner that the output current of the secondary side circuit
is limited to the output current limiting value or less.

US Pat. No. 9,234,559

JOINED BODY, SHOCK ABSORBER, AND METHOD FOR MANUFACTURING SHOCK ABSORBER

HITACHI AUTOMOTIVE SYSTEM...

1. A joined body comprising:
a first member having a female portion;
a second member having a male portion inserted in the female portion at one end, an annular groove along an outer circumference
of the male portion, and a fitted portion continuous from the annular groove in the axial direction of the second member and
having a larger diameter than a groove bottom surface portion of the annular groove, the second member being fitted to the
first member,

wherein a plurality of first recess portions is formed on an outer circumferential surface of a side wall of the female portion,
and a plurality of joint portions is formed on an inner circumferential surface of the side wall of the female portion at
positions of the first recess portions, and the joint portions are received in the annular groove of the male portion, the
plurality of the first recess portions and the plurality of the joint portions being formed at a plurality of positions in
a circumferential direction of the female portion, and

wherein the female portion includes a plurality of second recess portions formed on the outer circumferential surface of the
side wall of the female portion at positions axially different from the first recess portions, and a plurality of pressing
portions protruding radially inwardly to engage the fitted portion, the plurality of the second recess portions and the plurality
of the pressing portions being formed at a plurality of positions in the circumferential direction of the female portion,

wherein the second recess portions are open to the first recess portions, and the pressing portions are formed continuously
with the joint portions.

US Pat. No. 9,228,655

CONTROL APPARATUS AND CONTROL METHOD FOR VEHICLE ELECTRIC OIL PUMP

Hitachi Automotive System...

1. A control apparatus that controls an electric oil pump of a vehicle that supplies oil to a power transmission device transmitting
a drive force to an axle, the control apparatus comprising:
a frequency setting unit that changes a PWM frequency of a motor of the electric oil pump depending on at least one of a state
of a noise in an interior of the vehicle, whether the vehicle is in a pulled state or in a self-propelled state, and an oil
discharge amount of the electric oil pump.

US Pat. No. 9,126,495

ELECTRONIC CONTROL UNIT FOR AUTOMOBILE

Hitachi Automotive System...

1. An electronic control unit for automobile comprising:
a first FET connected between a vehicle-mounted battery and a power supply control IC that lowers an output voltage from the
vehicle-mounted battery to a predetermined value;

a second FET configured to control ON and OFF of the first FET;
a first resistor connected in series between a gate of the second FET and a plus terminal of the vehicle-mounted battery;
a first surge voltage protection element connected between the gate of the second FET and ground;
a coil connected in series between a source of the first FET and the power supply control IC;
a second resistor connected between the source of the first FET and a drain of the second FET;
a capacitor connected to an input side of the power supply control IC;
a third resistor connected in series between a gate of the first FET and the second FET; and
a second surge voltage protection element connected to the input side of the power supply control IC.

US Pat. No. 9,090,258

VEHICLE MOTION CONTROL APPARATUS AND VEHICLE MOTION CONTROL SYSTEM

Hitachi Automotive System...

1. A vehicle motion control apparatus, comprising:
motional state information acquiring means configured to acquire a first longitudinal acceleration, a lateral acceleration
and a vehicle speed of a vehicle;

pedal operating amount acquiring means configured to acquire information on a pedal operation performed by a driver;
vehicle motion control command calculating means configured to:
calculate a longitudinal acceleration command value on the basis of information acquired from the motional state information
acquiring means and the pedal operating amount acquiring means, and

output a command value indicating the calculated longitudinal acceleration command value,
wherein
when a quantity of pedal operation is zero, a second longitudinal acceleration is generated based on the calculated longitudinal
acceleration command value and a first longitudinal jerk generated on the basis of a pedal opening operation performed by
the driver, such that the second longitudinal acceleration provides a second longitudinal jerk having a value comparable to
the first longitudinal jerk.

US Pat. No. 9,371,813

CONTROL DEVICE OF DIRECT INJECTION ENGINE

Hitachi Automotive System...

1. A control system of a direct injection engine, the control system comprising:
an injector directly injecting fuel into a combustion chamber; and
a control device that is configured to perform an idle stop that temporarily reduces a speed of an engine when the engine
and a vehicle equipped with the engine are in a state in which the engine and the vehicle satisfy a predetermined condition,
wherein

when a restart request is made after a decision to stop of the direct injection engine is made and before the engine stops
rotating, at least the number of fuel injections in one combustion cycle is changed for each cylinder according to a piston
position at that time.

US Pat. No. 9,252,602

ELECTRIC STORAGE CELL CONTROL CIRCUIT

HITACHI AUTOMOTIVE SYSTEM...

1. An electric storage cell control circuit comprising controller including a storage device, the controller performing state
monitoring and balancing control for a plurality of electric storage cells connected in series, wherein
the controller stores, in the storage device, information for balancing control calculated on the basis of states of the plurality
of electric storage cells and performs the balancing control on the basis of the information stored in the storage device,
and

when the balancing control is suspended, the controller stores information during the suspension concerning balancing in the
storage device and, in starting the balancing control after the suspension, acquires the latest information concerning states
of the plurality of electric storage cells, selects, on the basis of a predetermined condition, whether the balancing control
is resumed on the basis of the information during the suspension stored in the storage device or balancing is started anew
on the basis of the latest information, and, when the balancing is started anew, stores, in the storage device, information
for the balancing control calculated on the basis of the acquired latest information.

US Pat. No. 9,252,624

BATTERY CONTROL DEVICE AND BATTERY SYSTEM

HITACHI AUTOMOTIVE SYSTEM...

1. A battery control device comprising:
a control unit which controls a battery pack having a plurality of single cells connected therein;
a voltage measurement unit which measures voltage between terminals of the single cells or the battery pack;
a current measurement unit which measures a current flowing through the single cells or the battery pack;
a temperature measurement unit which measures a temperature of the single cells or the battery pack, and
a storage unit which stores internal resistance characteristic information indicative of correspondence relation between the
temperature, state of charge, and either internal resistance value of the single cells or duration time during which the single
cells are charged or discharged, wherein

the internal resistance characteristic information describes the correspondence relation regarding each of the duration time;
wherein

the control unit acquires the state of charge of the single cells by using the result of the measurement by the voltage measurement
unit and by the current measurement unit; wherein

using the duration time that differs between an operation mode in to which to supply power to an electric vehicle and an operation
mode in which to supply power to a hybrid vehicle, the control unit acquires the internal resistance value corresponding to
the temperature, state of charge, and duration time of the single cells from the internal resistance characteristic information,
and wherein

the control unit uses an upper or lower voltage, an open circuit voltage, and the internal resistance value of the single
cells to calculate a charging current or a discharging current of the single cells, the control unit further performing a
control to charge or discharge the single cells in accordance with the charging current or the discharging current.

US Pat. No. 9,211,875

SUSPENSION CONTROL APPARATUS

HITACHI AUTOMOTIVE SYSTEM...

1. A suspension control apparatus, comprising:
at least one wheel-load adjusting mechanism provided between a vehicle body and at least one wheel of a vehicle, and capable
of adjusting a wheel load of the wheel by adjusting a force generated in a direction of a distance between the vehicle body
and the wheel; and

a controller configured to control the wheel-load adjusting mechanism to perform a wheel load control,
wherein the controller controls the wheel-load adjusting mechanism in at least one of the following manners:
the wheel load of at least one front wheel is increased or is substantially prevented from being decreased relative to that
before an absolute value of a lateral acceleration of the vehicle is increasing, according to a damping-force command signal
proportional to a vertical acceleration between the vehicle body and the at least one front wheel of the vehicle, when the
absolute value of a lateral acceleration of the vehicle is increasing; and

the wheel load of at least one rear wheel is increased or is substantially prevented from being decreased relative to that
before the absolute value of the lateral acceleration of the vehicle is decreasing, according to the damping-force command
signal proportional to the vertical acceleration between the vehicle body and the at least one rear wheel of the vehicle,
when the absolute value of the lateral acceleration of the vehicle is decreasing.

US Pat. No. 9,179,581

POWER SEMICONDUCTOR DEVICE AND POWER CONVERSION DEVICE

Hitachi Automotive System...

1. A power semiconductor device, comprising:
a series circuit of a first power semiconductor element for an upper arm of an inverter and a second power semiconductor element
for a lower arm of the inverter;

a first sealing member sealing the series circuit;
an internal terminal protruding from the first sealing member, for supplying DC power to the series circuit; and
an external wiring including an inner-side external terminal connected to the internal terminal and an outer-side external
terminal, wherein:

the series circuit comprises a first positive conductor plate and a first negative conductor plate that are arranged opposite
to each other so that the first power semiconductor element is sandwiched between the first positive conductor plate and the
first negative conductor plate, and also comprises a second positive conductor plate and a second negative conductor plate
that are arranged opposite to each other so that the second power semiconductor element is sandwiched between the second positive
conductor plate and the second negative conductor plate;

the first positive conductor plate and the first negative conductor plate each have two opposite surfaces, one of which faces
toward the first power semiconductor element and the other of which is exposed from the first sealing member;

the second positive conductor plate and the second negative conductor plate each have two opposite surfaces, one of which
faces toward the second power semiconductor element and the other of which is exposed from the first sealing member;

the first negative conductor plate and the second positive conductor plate are electrically connected with each other;
the internal terminal comprises a first positive connection terminal formed on the first positive conductor plate, a first
negative connection terminal formed on the second negative conductor plate, and a first AC connection terminal formed on the
second positive conductor plate;

the external wiring comprises a positive wiring, a negative wiring and an AC wiring;
the inner-side external terminal comprises a second positive connection terminal formed on one side of the positive wiring,
a second negative connection terminal formed on one side of the negative wiring, and a second AC connection terminal formed
on one side of the AC wiring;

the outer-side external terminal comprises a third positive connection terminal formed on the other side of the positive wiring,
a third negative connection terminal formed on the other side of the negative wiring, and a third AC connection terminal formed
on the other side of the AC wiring;

each of the first positive connection terminal, the first negative connection terminal, the first AC connection terminal,
the positive wiring, the negative wiring, and the AC wiring has a main surface and a side surface, the respective side surface
being perpendicular to and smaller than the respective main surface;

the first positive connection terminal, the first negative connection terminal, and the first AC connection terminal are aligned
along one surface of the first sealing member across a direction along which the first positive conductor plate, the second
negative conductor plate and the second positive conductor plate are arranged at their portions protruding from the first
sealing member so that the side surfaces of the first positive connection terminal, the first negative connection terminal
and the first AC connection terminal are opposite to each other;

the positive wiring, the negative wiring, and the AC wiring are arranged so that the second positive connection terminal,
the second negative connection terminal and the second AC connection terminal are aligned along the first positive connection
terminal, the first negative connection terminal and the first AC connection terminal, and are also arranged so that the main
surfaces of the positive wiring and the negative wiring are at least partially opposite to each other at the third positive
connection terminal and the third negative connection terminal to form a layer structure; and

the first positive connection terminal, the first negative connection terminal, and the first AC connection terminal are connected
to the second positive connection terminal, the second negative connection terminal and the second AC connection terminal
respectively, such that magnetic fluxes are generated in directions canceling each other out by current flowing in the first
positive connection terminal and the first negative connection terminal through each layer of the layer structure of the positive
wiring and the negative wiring.

US Pat. No. 9,121,379

FUEL INJECTION VALVE

HITACHI AUTOMOTIVE SYSTEM...

1. A fuel injection valve comprising:
a valve body slidably installed within the injection valve;
a valve seat member having a valve seat on which the valve body is seated at a time of a valve closure and having an opening
section at a downstream side of the valve seat member;

a plurality of swirl generating chambers, each swirl generating chamber being configured to swirl fuel at an inner part of
a corresponding one of the swirl generating chambers to provide a swirling force for fuel;

a plurality of injection holes, each injection hole being formed on a bottom section of the corresponding one of the swirl
generating chambers and penetrated to an external; and

a communication passage configured to communicate between the corresponding one of the swirl generating chambers and the opening
section of the valve seat member,

wherein a pipe line through which fuel is uniformly caused to flow is supposed from a flow quantity of fuel flowing into each
of the communication passages and, if a diameter of the pipe line is assumed to be da and a diameter of each of the injection
holes is assumed to be d0, da/d0 is set such that a spray angle of fuel injected from each of the injection holes provides a desired spray angle and the communication
passages and the injection holes are designed such that at least one of fuel sprays injected from the respective injection
holes is contacted on any other fuel sprays at a lower position than a liquid film part without contact of the fuel sprays
injected from the respective injection holes on the liquid film parts of any other fuel sprays,

wherein
da ={square root over (4WH/?)}

 wherein W denotes a width of each of the communication passages and H denotes a height of each of the communication passages.

US Pat. No. 9,097,194

CONTROL DEVICE CONTROLLING SENSOR HEATING IN INTERNAL COMBUSTION ENGINE

Hitachi Automotive System...

1. A control device of an internal combustion engine, the control device provided with a heating controlling unit configured
to heat a sensor element of a sensor provided in an exhaust pipe, the sensor configured to detect an exhaust gas component,
the control device comprising:
a saturated water vapor pressure computing unit configured to compute a saturated water vapor pressure of exhaust gas passing
through the exhaust pipe based on an exhaust pipe temperature of the exhaust pipe;

a condensed water mass change rate computing unit configured to compute a rate of change of condensed water mass in the exhaust
pipe based at least in part on the saturated water vapor pressure and an exhaust gas mass flow rate;

a condensed water received heat amount computing unit configured to compute an amount of received heat which the condensed
water mass receives from the exhaust gas;

an evaporation latent heat computing unit configured to compute latent heat of evaporation associated with evaporation of
the condensed water mass;

an evaporation mass change rate computing unit configured to compute a rate of change of evaporation mass in the exhaust pipe
based on the amount of heat which condensed water in the exhaust pipe receives and latent heat of evaporation;

a condensed water mass computing unit configured to update the mass of condensed water in the exhaust pipe based on the rate
of change of condensed water mass and the rate of change of evaporation mass;

a heating control determining unit configured to perform heating control determination as to whether to perform heating control
by the heating controlling unit based on the updated mass of condensed water,

wherein the control device is configured to communicate electronically with the heating controlling unit by sending a signal
based on the determination;

a unit configured to change continuously the extent to which the sensor element is heated in accordance with the mass of condensed
water; and

a unit configured to preheat the sensor element by the heating controlling unit based on the mass of condensed water when
the mass of condensed water is more than or equal to a predetermined value.

US Pat. No. 9,059,607

GEAR-INTEGRATED ELECTRIC MOTOR AND ELECTRIC VEHICLE

HITACHI AUTOMOTIVE SYSTEM...

1. A gear-integrated electric motor provided with a motor generating a
driving force by input of electricity, a gear mechanism converting the driving force of the motor, and a housing containing
the motor and the gear mechanism, and used in a horizontal position, wherein a motor shaft and a gear output shaft become
substantially horizontal, comprising:

at least one heat pipe that has an evaporation portion disposed in a motor area of the housing, and a condensation portion
disposed in a gear mechanism area of the housing and higher than the evaporation portion with respect to the vertical direction
in the horizontal position,

wherein
oil such as lubricant is contained in the motor area of the housing, and
the evaporation portion is disposed within or in the vicinity of an area where the oil remains.

US Pat. No. 10,091,903

POWER CONVERSION DEVICE HAVING BUS BAR WITH IMPROVED VIBRATION RESISTANCE

Hitachi Automotive System...

1. A power conversion device, comprising:a power semiconductor module that converts a DC current into an AC current;
a plate conductor that transfers the DC current or the AC current;
a resin sealing material that seals the plate conductor; and
an electric component that is used to control the power semiconductor module,
wherein the resin sealing material includes at least one supporting member that supports the electric component,
wherein the plate conductor is buried in a portion of the resin sealing material that is disposed to face the electric component,
wherein the at least one supporting member includes a first supporting member to support a driver circuit board and a second supporting member to support a current sensor,
wherein the resin sealing material includes a first surface equipped with the first supporting member and a second surface equipped with the second supporting member, in which the first surface and the second surface are disposed to form an angle with respect to each other,
wherein the resin sealing material includes a bent portion that connects the first surface and the second surface, and
wherein the plate conductor is at least partially disposed within the bent portion of the resin sealing material.

US Pat. No. 9,382,891

ENGINE CONTROL APPARATUS

Hitachi Automotive System...

1. An engine control apparatus comprising:
an engine control unit configured to control a ring gear for transmitting torque to an engine, a starting device for starting
said engine, a pinion gear supported on an output rotation shaft of a starter motor of said starting device, and a pinion
gear driver configured to slide said output rotation shaft;

wherein the engine control unit is configured to perform an idling stop function to stop said engine during engine idling,
said engine control unit being configured to further perform control to engage said ring gear and said pinion gear with each
other in an idling stop state;

wherein, when said ring gear and said pinion gear are to be disengaged from each other, said pinion gear driver actuates said
pinion gear to disengage from said ring gear while the starter motor of said starting device is rotated simultaneously and
while said ring gear is not rotated, thereby releasing engagement of the ring gear and the pinion gear.

US Pat. No. 9,379,302

METHOD OF MANUFACTURING THE THERMAL FLUID FLOW SENSOR

Hitachi Automotive System...

1. A method of manufacturing a thermal sensor that has a detection part having a heating resistor and a circuit part having
a control circuit for controlling the heating resistor, the method comprising:
(a) forming a first layered film including a plurality of insulating films above a semiconductor substrate;
(b) forming the heating resistor on the first layered film;
(c) forming the control circuit on the semiconductor substrate;
(d) forming a second layered film including a plurality of insulating films on the heating resistor and above the control
circuit;

(e) forming an intermediate layer on the second layered film;
(f) forming a third layered film including a plurality of insulating films on the intermediate layer; and
(g) etching a portion in the third layered film located above the detection part using the intermediate layer as an etch stop
layer.

US Pat. No. 9,229,040

DISCONNECTION DETECTION CIRCUIT FOR BRIDGE CIRCUIT AND SYSTEM INCLUDING DISCONNECTION DETECTING MEANS

Hitachi Automotive System...

1. A disconnection detection circuit for a bridge circuit, comprising:
a sensor element resistor whose resistance value varies depending on a physical quantity;
a bridge circuit composed of a plurality of resistors including the sensor element resistor, the bridge circuit being supplied
with a voltage between a power terminal and a ground terminal, wherein a power terminal voltage is higher than a ground terminal
voltage;

an output terminal through which an intermediate voltage of the bridge circuit is fetched into outside; and
a bridge output detection circuit that detects the intermediate voltage fetched through the output terminal,
the disconnection detection circuit for a bridge circuit being connected to the output terminal, wherein
the disconnection detection circuit comprises:
a conducting means that causes a current to flow into the output terminal of the bridge circuit;
a potential difference detection means that detects a potential difference between the potential at the output terminal of
the bridge circuit and a predetermined potential and detects a disconnection;

a switching means that, when the disconnection detecting means detects a disconnection, fixes the output of the bridge output
detection circuit to a supply voltage or ground voltage,

the conducting means is connected to the output terminal, and that
the voltage at the power terminal of the bridge circuit is a low potential with respect to the predetermined potential.

US Pat. No. 9,160,490

ELECTRONIC CONTROL DEVICE

HITACHI AUTOMOTIVE SYSTEM...

1. An electronic control device comprising:
a first electronic circuit including a plurality of transistors for driving currents that flow through loads; and
a second electronic circuit including a pulse generating circuit for generating a plurality of pulses input into the transistors
for indicating timing at which the first electronic circuit drives the loads,

wherein the second electronic circuit transmits the pulses to the first electronic circuit using serial communication,
wherein the second electronic circuit includes an edge detection circuit for detecting the edges of the pulses for indicating
timing at which the first electronic circuit drives the loads, and

wherein the transmission of the pulses is executed when the edge detection circuit detects at least one edge out of the edges
of the pulses.

US Pat. No. 9,159,506

CAPACITOR MODULE AND POWER CONVERSION DEVICE

Hitachi Automotive System...

1. A capacitor module, comprising:
a capacitor element;
a filling material that seals the capacitor element;
a first electrode terminal-side rising portion that is electrically connected with the capacitor element and that rises from
the filling material;

a second electrode terminal-side rising portion that is electrically connected with the capacitor element and that rises from
the filling material;

a first electrode terminal-side capacitor terminal that is connected with an end portion of the first electrode terminal-side
rising portion;

a second electrode terminal-side capacitor terminal that is connected with an end portion of the second electrode terminal-side
rising portion; and

an insulation member disposed between the first electrode terminal-side rising portion and the second electrode terminal-side
rising portion, wherein:

the second electrode terminal-side capacitor terminal is formed along a direction to be separated from the first electrode
terminal-side capacitor terminal;

a connecting surface of the first electrode terminal-side capacitor terminal, facing outside of the first electrode terminal-side
capacitor terminal, is formed lower than a connecting surface of the second electrode terminal-side capacitor terminal, facing
outside of the second electrode terminal-side capacitor terminal; and

the insulation member is formed by being bent towards a side at which the first electrode terminal-side capacitor terminal
is disposed.

US Pat. No. 9,109,596

VARIABLE DISPLACEMENT PUMP

HITACHI AUTOMOTIVE SYSTEM...

1. A variable displacement pump comprising:
a rotationally driven rotor;
a plurality of vanes provided in an outer periphery of the rotor and arranged to be moved in a radially inward direction and
to be moved in a radially outward direction;

a cam ring in an inside of which the rotor and the vanes are housed, in an inner part of which a plurality of pump chambers
are formed, and configured to be moved to vary an eccentricity of the cam ring with respect to a rotary center of the rotor;

a housing including:
a suction section formed on at least one side surface of the cam ring and opened to one of the pump chambers whose volume
is increased when the cam ring is eccentrically moved toward one direction with respect to the rotary center of the rotor;
and

a discharge section opened to one of the pump chambers whose volume is decreased when the cam ring is eccentrically moved
toward another direction with respect to the rotary center of the rotor;

a biasing member configured to bias the cam ring toward the one direction toward which the eccentricity of the cam ring with
respect to the rotary center of the rotor becomes large;

a first control oil chamber configured to move the cam ring toward the other direction against a biasing force of the biasing
member when a discharge pressure is introduced into the first control oil chamber;

a second control oil chamber configured to act a hydraulic pressure upon the cam ring by cooperating with the biasing force
of the biasing member when hydraulic oil is introduced into the second control oil chamber;

a switching mechanism configured to switch between a first state in which hydraulic oil whose pressure is decreased with respect
to a discharge pressure is introduced to the second control oil chamber from the discharge section and a second state in which
hydraulic oil is discharged from the second control oil chamber; and

a control mechanism configured to discharge hydraulic oil within the second control oil chamber as the discharge pressure
becomes larger and to adjust the pressure within the second control oil chamber in a pressure decrease direction when the
switching mechanism introduces hydraulic oil whose pressure is decreased with respect to the discharge pressure to the second
control oil chamber during a high revolution of the pump.

US Pat. No. 9,992,915

POWER CONVERSION DEVICE

Hitachi Automotive System...

1. A power conversion device comprising:a first power semiconductor module;
a second power semiconductor module; and
a fixing member which fixes the first power semiconductor module, wherein
the first power semiconductor module has a first power semiconductor device, a first case which houses the first power semiconductor device, and a first flange portion fixed to and in contact with the first case,
the second power semiconductor module has a second power semiconductor device, and a second case which houses the second power semiconductor device,
the second case is fixed to and in contact with the first flange portion so as to provide a first flow path space for allowing a coolant to flow between the second case and the first case,
the first flange portion is fixed to the fixing member while supporting the first case and the second power semiconductor module,
the first case has a first fin, and a first fin base connected to the first fin,
the second case has a second fin, and a second fin base connected to the second fin,
the first fin is formed, in the first flow path space, to have a distal end portion located closer to the second fin base than a connection portion between the first fin and the first fin base, and
the second fin is formed, in the first flow path space, to have a distal end portion located closer to the first fin base than a connection portion between the second fin and the second fin base.

US Pat. No. 9,556,757

VALVE TIMING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

HITACHI AUTOMOTIVE SYSTEM...

1. A valve timing control apparatus for an internal combustion engine comprising:
a first member to which a rotational force is transmitted from a crank shaft;
a second member which is arranged to be rotated relative to the first member, and to rotate as a unit with a cam shaft;
an electric motor which includes a motor housing that is provided to the first member to rotate as a unit with the first member,
and a motor output shaft, and which is arranged to rotate the second member relative to the first member by the motor output
shaft;

a cover member which is disposed on an outer end surface of the electric motor to confront the outer end surface of the electric
motor in an axial direction;

a slip ring which has an annular shape, which is provided to one of the electric motor and the cover member, and which is
provided coaxially with the motor output shaft;

a power feeding brush which is provided to the other of the electric motor and the cover member, and which includes a tip
end portion arranged to be slidably abutted on the slip ring; and

a rotation angle sensing mechanism which is provided between one end portion of the motor output shaft, and the cover member
confronting the one end portion of the motor output shaft, and which is arranged to sense a rotation angle of the motor output
shaft,

the power feeding brush being disposed in a range in which the power feeding brush is slid on the slip ring, in a range from
a position which is deviated a predetermined angle in a rotation direction of the motor housing from an uppermost position
of the other of the electric motor and the cover member in a vertical direction, to a lowermost position.

US Pat. No. 9,394,934

FASTENING METHOD AND CYLINDER DEVICE

HITACHI AUTOMOTIVE SYSTEM...

1. A fastening method for fastening a nut to a bolt by screwing, the fastening method comprising:
preparing a nut including a tool mounting portion formed on a side of a seat surface, and an annular thin portion formed on
the tool mounting portion opposite to the seat surface,

supporting the bolt at a position of the bolt opposite to where the nut is attached using a work support base which is configured
to be movable along an axial direction of the bolt, and

swaging a plurality of places of the thin portion with punches from an outer circumferential direction in a state where the
nut is fastened to the bolt,

wherein the swaging causes a thickness of the thin portion to plastically deform so as to extend to a front end of the bolt
partially in a circumferential direction to be closely adhered to a screw portion of the bolt, and wherein the work support
base and the bolt move in a direction opposite to the front end of the bolt in accordance with a progress of the swaging.

US Pat. No. 9,397,374

SECONDARY BATTERY MODULE, BATTERY INFORMATION MANAGEMENT DEVICE, BATTERY INFORMATION MANAGEMENT SYSTEM, SECONDARY BATTERY REUSE SYSTEM, SECONDARY BATTERY RECOVERY AND SALES SYSTEM, SECONDARY BATTERY REUSE METHOD, AND SECONDARY BATT

HITACHI AUTOMOTIVE SYSTEM...

1. A battery information management device connected to a secondary battery module including battery information storage means
for storing at least one of electrical characteristic information and usage history information of the secondary battery module
as battery information, the battery information management device comprising:
information processing means including at least a central processing unit and a memory;
output means for outputting a result of information processing by the information processing means; and
interface means for connecting the secondary battery module to the information processing means, wherein
the information processing means reads the battery information stored in the battery information storage means of the secondary
battery module by use of the interface means,

the information processing means grades the secondary battery module for reuse based on at least one threshold predetermined
with respect to the battery information and the battery information which is read out,

the information processing means outputs grading information obtained as a result of the grading to the output means, and
the battery information comprises history information including at least one of rated or initial capacity, resistance, range
of voltage, range of current, available power, or open circuit voltage.

US Pat. No. 9,287,771

SERIES REGULATOR ON ELECTRONIC CONTROL UNIT FOR AUTOMOTIVE VEHICLE

Hitachi Automotive System...

1. A series regulator on an electronic control unit for an automotive vehicle which is connected to an in-vehicle power supply
for supplying a voltage to a microcomputer, the series regulator comprising:
a first capacitor that has one end connected to a positive electrode of the in-vehicle power supply and the other end connected
to a negative electrode of the in-vehicle power supply;

a second capacitor that has one end connected to an input terminal of the microcomputer and the other end connected to the
negative electrode of the in-vehicle power supply;

a transistor that has an input terminal connected to the one end of the first capacitor and an output terminal connected to
the input terminal of the microcomputer;

a resistive element that has one end connected to an output control terminal of the transistor;
a third capacitor that has one end connected to the other end of the resistive element and the other end connected to the
negative electrode of the in-vehicle power supply; and

an output control circuit that has an output connected between the output control terminal of the transistor and the resistive
element, and controls driving of the transistor, wherein:

the microcomputer includes a stop processor that stores information required for a subsequent start when a voltage applied
between both ends of the first capacitor falls below a given voltage,

wherein the transistor is a field-effect transistor (FET), and
the third capacitor is connected in series to agate of the transistor.

US Pat. No. 9,086,427

INERTIAL SENSOR

Hitachi Automotive System...

1. An inertial sensor comprising:
an acceleration detecting element that detects a longitudinal acceleration of a vehicle and a lateral acceleration of the
vehicle;

a first filter that limits a detection signal of the longitudinal acceleration and a detection signal of the lateral acceleration
to a first band;

a second filter that limits the detection signal of the lateral acceleration to a second band that has a higher cut-off frequency
than the first band;

a vehicle control variable calculation section that calculates a vehicle control variable of the vehicle on the basis of the
detection signal of the lateral acceleration limited to the second band by the second filter and a lateral jerk that is a
differential value of the lateral acceleration; and

a sensor signal output section that outputs the detection signal of the longitudinal acceleration and the detection signal
of the lateral acceleration to an electronic control unit, both outputted detection signals being limited to the first band
by the first filter, and outputs the vehicle control variable calculated by the vehicle control variable calculation section
to the electronic control unit.

US Pat. No. 9,169,816

HIGH-PRESSURE FUEL SUPPLY PUMP HAVING ELECTROMAGNETICALLY-DRIVEN INTAKE VALVE

Hitachi Automotive System...

1. A high-pressure fuel supply pump comprising:
a pump housing in which a pressurizing chamber is provided;
a piston plunger supported by the pump housing, the piston plunger repetitively performing a reciprocating motion within the
pressurizing chamber to suck fluid into the pressurizing chamber, pressurize the fluid therein and discharge the fluid out
of the pressurizing chamber;

an electromagnetically-driven intake valve unit including an intake valve provided on the side of the pressurizing chamber
adjacent to a valve seat provided at a valve housing and a valve biasing spring configured to bias the intake valve against
the valve seat;

an electromagnetic driving mechanism for controlling an opening or closing for the electromagnetically-driven intake valve
unit; and

a guide portion guiding the intake valve, the guide portion being arranged on a pressurizing chamber side with respect to
the intake valve, wherein

the intake valve includes an abutting surface that abuts the valve seat to shut off a fuel intake passage and a bottomed part
provided at an inner peripheral part of the abutting surface, and

the guide portion has an outer surface part which is inserted into an empty volume of space defined by an inner surface of
the intake valve and supports a reciprocating motion of the intake valve relative to the guide portion.

US Pat. No. 9,169,888

TUBE PROVIDED WITH BRANCH TUBE, SHOCK ABSORBER, AND METHOD FOR MAKING THEM

HITACHI AUTOMOTIVE SYSTEM...

7. A shock absorber comprising:
a cylinder sealingly containing hydraulic fluid;
a piston inserted in the cylinder;
a piston rod coupled with the piston and extending to an exterior of the cylinder;
an outer tube externally disposed around the cylinder;
a separator tube externally disposed around the cylinder and having a cylindrical sidewall that defines an annular passage
in communication with an interior of the cylinder;

a reservoir formed between the cylinder and the outer tube outside the separator tube, the reservoir sealingly containing
the hydraulic fluid and gas; and

a substantially cylindrical branch tube integrally formed on the cylindrical sidewall of the separator tube, and protruding
radially outwardly while defining a passage in communication with the annular passage,

wherein the shock absorber is configured to be mounted between relatively movable two members, and
wherein the substantially cylindrical branch tube is formed by causing the cylindrical sidewall of the separator tube to protrude
radially outwardly, recesses are formed at both sides of a proximal portion of the substantially cylindrical branch tube in
a circumferential direction of the cylindrical sidewall of the separator tube by pressing the cylindrical sidewall of the
separator tube from an interior thereof to concave an inner circumferential surface radially outwardly, and at least a portion
of the recesses are spaced apart from the substantially cylindrical branch tube.

US Pat. No. 9,383,232

PHYSICAL QUANTITY DETECTION DEVICE

Hitachi Automotive System...

1. A physical quantity detection device that comprises:
a communication line through which communication is performed bidirectionally with a sensor for detecting a physical quantity;
a logical circuit that operates at an operating voltage higher than an operating voltage of the sensor and acquires a value
of the physical quantity detected by the sensor via the communication line;

an input/output circuit for transmitting/receiving a signal to/from the sensor;
an A/D converter for converting the signal received by the input/output circuit into a numerical value; and
a voltage reducing circuit for performing voltage reduction on a voltage of the signal that the logical circuit outputs to
the sensor through the communication line,

wherein the logical circuit includes an arithmetic unit that determines whether the signal that the A/D converter converted
into the numerical value is a Hi level signal or a Lo level signal according to predetermined first Hi level signal and first
Lo level signal,

wherein the input/output circuit and the A/D converter are connected to the sensor in a mutual parallel manner, and
wherein the arithmetic unit acquires a value of the physical quantity transmitted by the sensor by determining whether the
signal that the A/D converter converted into is a Hi level signal or a Lo level signal according to a second Hi level threshold
and a second Lo level threshold decided on arithmetic processing performed by the arithmetic unit in place of the first Hi
level threshold and the first Lo level threshold when receiving a signal describing the physical quantity from the sensor
through the communication line.

US Pat. No. 9,214,653

SECONDARY BATTERY COMPRISING TERMINAL INSULATING MEMBERS

Hitachi Automotive System...

1. A secondary battery, comprising:
a power generation body that is housed within a battery container sealed with a cover;
positive and negative external terminals that are disposed on the cover and connected to the power generation body through
the positive and negative power collection members, respectively; and

a pair of terminal insulating members that isolate the respective positive and negative external terminals from the cover,
wherein at least one of the pair of terminal insulating members is formed with a fitting portion for loading an external part
into a battery container;

a gas collection duct provided in the cover as the external part so as to cover a gas exhaust valve disposed in the cover,
in which the fitting portion is an engaging portion,

wherein the gas collection duct is provided with a locking portion that is elastically engaged with the engaging portion and
locked by a terminal insulating member,

wherein the engaging portion is provided in each of the pair of terminal insulating members,
wherein the gas collection duct is laterally disposed between the pair of terminal insulating members,
wherein the engaging portion of the terminal insulating member is a recess or protrusion provided on opposite surfaces of
the pair of terminal insulating members which face each other,

wherein the locking portion of a complementary protrusion or recess that is elastically engaged with the recess or protrusion
of the terminal insulating member is provided on both ends of the gas collection duct in a longitudinal direction thereof,
and

wherein the external part is loaded into the battery container with a use of both of the pair of terminal insulating members.

US Pat. No. 9,209,432

SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME

HITACHI AUTOMOTIVE SYSTEM...

1. A secondary battery comprising:
an electrode group including sheet-form positive and negative electrode plates each including a metallic foil having an active
material applied onto both sides of the metallic foil, and a separator disposed between the positive and negative electrode
plates, the positive and negative electrode plates and the separator being spirally wound together around a winding core into
a flattened shape, the electrode group having, at the both ends thereof as viewed in the winding core direction, respectively
formed metallic foil exposed portions of the positive and negative electrode plates onto which the active material is not
applied;

a battery container which contains the electrode group therein, the battery container having a battery casing with opposing
wide and narrow surfaces and a battery cap; and

positive and negative external terminals electrically connected to the metallic foil exposed portions of the positive and
negative electrode plates, respectively,

wherein winding end portions in the metallic foil exposed portions of the positive and negative electrode plates are arranged
opposite to the inner surface of the battery container through respective conducting members;

wherein the metallic foil exposed portions of the positive and negative electrode plates are stacked in the thickness wise
direction of the battery casing to form respective stacked structures, wherein the stacked structures of the positive and
negative electrode plates are respectively bonded to positive and negative connecting plates which electrically connect the
respective metallic foil exposed portions to the positive and negative external terminals, respectively,

wherein the positive and negative connecting plates each have a respective joint leaf provided so as to face a wide surface
of the battery casing, and respective connecting members which connect the joint leaves to the positive and negative external
terminals, respectively, each connecting member extending to the battery cap along a narrow surface of the battery casing,
and

wherein ultrasonic bonding sites are defined on each joint leaf and the joint leaves are respectively ultrasonically welded
to the winding end portions of the positive and negative electrode plates to thereby fix the winding end portions in a direction
towards the battery cap; and

wherein each connecting plate has a base portion extending along the inner surface of the battery cap, a side portion having
a broad surface which extends curved from the base portion at a substantially right angle and to a lower portion of the electrode
group such that the broad surface extends along a narrow sidewall of the battery casing toward a bottom, and the joint leaf
extends from a lower half portion of the side portion and is curved toward the electrode group curved along the wide surface
of the battery casing at a substantially right angle, the joint leaf and side portion together form a unified structure having
an L-shaped cross-section and have high strength and high rigidity.

US Pat. No. 9,130,379

INTEGRATED CIRCUIT FOR CONTROLLING BATTERY CELL AND VEHICLE POWER SUPPLY SYSTEM

Hitachi, Ltd., Tokyo (JP...

1. A vehicle power supply system, comprising:
a battery module that is constituted with a plurality of serially connected battery cell groups each including a plurality
of serially connected battery cells;

a plurality of battery cell control devices each disposed in correspondence to the plurality of battery cell groups; and
a signal transmission path through which signals that are input to or output from the plurality of battery cell control devices
are transmitted, wherein:

each of the plurality of battery cell control devices comprises a voltage measurement circuit, an abnormality diagnosis circuit,
a timing control circuit and a communication circuit, wherein each of the battery cell control devices is programmed to control
the:

voltage measurement circuit to measure terminal voltages at the individual battery cells in the corresponding battery cell
group;

abnormality diagnosis circuit to diagnose an abnormality of the voltage measurement circuit;
timing control circuit to output a signal for instructing measurement phase during which the terminal voltage is measured,
and, in synchronization with output of the measurement phase instruction signal, to output a signal for instructing diagnosis
phase during which an abnormality diagnosis of the voltage measurement circuit is executed by the abnormality diagnosis circuit;

communication circuit to output a signal indicating the terminal voltage measured by the voltage measurement circuit and a
signal based upon a diagnosis result by the abnormality diagnosis circuit, to the signal transmission path, and wherein:

based on the outputs of the timing control circuit, the abnormality diagnosis circuit diagnoses an abnormality of the voltage
measurement circuit in synchronization with the terminal voltage measurement.

US Pat. No. 9,260,983

VALVE CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

Hitachi Automotive System...

1. A valve control apparatus for an internal combustion engine, comprising:
a first engine valve biased in a closing direction of the first engine valve by a biasing force of a first valve spring;
a second engine valve biased in a closing direction of the second engine valve by a biasing force of a second valve spring;
a first drive cam provided on a drive shaft and configured to rotate integrally with the drive shaft, the drive shaft being
configured to rotate in synchronization with a crankshaft;

a second drive cam provided on the drive shaft and configured to rotate integrally with the drive shaft;
a swing cam configured to swing;
a transmission mechanism configured to convert a rotational motion of the first drive cam into a swinging force and to transmit
the swinging force to the swing cam;

a first swing arm configured to open the first engine valve by being pressed by a swing of the swing cam;
a second swing arm configured to open the second engine valve by being pressed by a rotation of the second drive cam;
a control mechanism configured to vary a swing amount of the swing cam by varying an attitude of the transmission mechanism;
and

a connection changeover mechanism configured to connect and disconnect the first swing arm with and from the second swing
arm,

wherein a lift characteristic of the second engine valve as determined by the configuration of the second swing arm for opening
the second engine valve by being pressed by the second drive cam is one fixed lift curve, and

wherein the one fixed lift curve has a lift amount and a working angle which are smaller than a minimum lift amount and a
minimum working angle within a lift characteristic of the first engine valve as determined by the configuration of the first
swing arm for opening the first engine valve by being pressed by the swing cam.

US Pat. No. 9,103,354

ELECTRIC BRAKE CONTROL APPARATUS

Hitachi Automotive System...

1. An electric brake control apparatus, comprising:
a motor that includes a housing made of a conductive member;
a control unit that performs drive control of the motor;
a hydraulic unit that comprises a housing made of a conductive member; and
a pin-shaped conductive connection member that electrically connects a ground line of the control unit, the housing of the
motor and the housing of the hydraulic unit to each other;

wherein the connection member is fixedly fitted into a hole provided in the hydraulic unit; and
wherein a distal end of the connection member that is fitted into the hole of the hydraulic unit is made of a deformable member,
and a maximum diameter of the distal end is larger than a diameter of the hole in the hydraulic unit.

US Pat. No. 9,457,783

BRAKE SYSTEM

HITACHI AUTOMOTIVE SYSTEM...

12. A brake system comprising:
a caliper configured to press brake pads against a disk, the brake pads being provided at both surfaces of the disk rotatable
together with a wheel of a vehicle, with use of a piston by a hydraulic pressure based on an operation performed on a brake
pedal;

a piston holding mechanism mounted in the caliper and configured to advance the piston by an electric motor and hold or release
the advanced piston; and

a control apparatus configured to drivingly control the electric motor by electric power supplied from a power source of the
vehicle and, when the brake system stops due to a reduction in voltage of the power source, store at least a holding state
in which the piston is held by the piston holding mechanism, or a release state in which the piston is released by the piston
holding mechanism,

wherein:
when the brake system is restarted after the brake system stops,
if a running state in which a speed of the vehicle is higher than 0 km/h is maintained for a predetermined time period and
a braking state by the piston holding mechanism is stored as another state than the release state, the control apparatus controls
actuation of the piston holding mechanism so as to release holding of the piston based on the stored braking state, and

if the braking state by the piston holding mechanism is not stored as the holding state and the vehicle is in a stopped state,
the control apparatus controls actuation of the piston holding mechanism so as to hold the braking based on the stored braking
state.

US Pat. No. 9,356,451

BATTERY CONTROL CIRCUIT HAVING MULTIPLE ADJUSTING UNITS

Hitachi Automotive System...

1. A secondary battery control system comprising:
an electric cell controller that operates using electric power provided by a battery group including two or more batteries
and that monitors and controls each of the battery included in the battery group from which the electric power is provided;
and

a battery pack controller that monitors and controls a state of a battery unit including two or more of the battery group
by controlling the electric cell controller according to information from the electric cell controller;

wherein the electric cell controller includes: a first adjust unit that adjusts, upon charging or discharging of the battery
unit, a voltage or a charge state of the battery included in the battery group; and a second adjust unit that adjusts, when
not charging or not discharging the battery unit, a voltage or a charge state of the battery group included in the battery
unit.

US Pat. No. 9,345,150

ELECTRICAL CONVERTER

Hitachi Automotive System...

1. An electrical converter comprising:
a case;
a power module mounted on the case and provided with a plurality of power semiconductor elements;
a metal plate mounted to the power module and fixed to the case;
a control circuit board disposed on the metal plate which controls the power semiconductor elements;
direct-current input terminals electrically connected to a battery;
a transmission or a motor is provided at a bottom of the electrical converter, and
a metal top cover that accommodates a connector which connects the battery and the direct-current input terminals is provided
at a top of the electrical converter, wherein

a portion of the metal plate is curved toward the metal top cover, and the portion of the curved metal plate is arranged in
a space between the control circuit board and the direct-current input terminals.

US Pat. No. 9,228,672

ELECTROMAGNETIC VALVE AND FIXING STRUCTURE

Hitachi Automotive System...

1. An electromagnetic valve comprising:
an annularly-wound coil;
a casing that encircles an outer peripheral side of the coil and has
(a) a cylinder portion, at least one end side in an axial direction of which is open; and
(b) a plurality of nail portions which are formed at the opening end of the cylinder portion,
a movable core that is housed movably in the axial direction in an inner periphery of the coil;
a fixed core that is set at the opening end side of the casing;
a valve body that has a hollow shape and is fixed to the opening end of the casing together with the fixed core by bending
inwards and deforming the nail portions; and

a spool valve body that moves in the axial direction in the valve body according to the movement in the axial direction of
the movable core, and

each of the plurality of nail portions being provided with
(c) a wide width portion formed at a root side of the nail portion;
(d) a narrow width portion formed at a top edge side of the wide width portion in a substantially central location, in a width
direction, of the wide width portion; and

(e) a stepped portion formed between the wide width portion and the narrow width portion, and
the stepped portion being positioned at a substantially same position as an outer edge of a flange portion of the valve body
which abuts on the fixed core from the axial direction, or being positioned between the outer edge of the flange portion of
the valve body and an abutting portion of the valve body on the fixed core.