US Pat. No. 9,988,071

ANGULARLY MOVABLE BEARING ARRANGEMENT FOR PINIONS IN REDUCTION GEARS OF ELECTROMECHANICAL STEERING SYSTEMS

THYSSENKRUPP PRESTA AG, ...

1. A helical gear mechanism for a steering system of a motor vehicle, comprising:a bearing housing having a seat surface defined therein;
a sleeve disposed in said bearing housing and having an inner contact surface, and an outer contact surface in contact with said seat surface of said bearing housing;
a fixed bearing having a bearing inner ring, and a bearing outer ring defining an outer circumferential surface, said fixed bearing being disposed in said sleeve within said bearing housing and said inner contact surface of said sleeve being in contact with said outer circumferential surface of said bearing outer ring;
a helical pinion having a longitudinal axis, and a bearing seat defined at a drive input side of said pinion that is fixedly disposed within said inner ring of said fixed bearing so as to mount said pinion to said fixed bearing such that said pinion is rotatable about said longitudinal axis, said helical pinion together with said fixed bearing being pivotable relative to said housing about a pivot axis oriented perpendicular to said longitudinal axis; and
a helical gear having a helical gear toothing operatively engaged with said helical pinion,
wherein one of said inner or outer contact surfaces of said sleeve is convex shaped and configured to make circumferential contact, on a central plane of said fixed bearing, with said respective outer circumferential surface of said bearing outer ring or said seat surface of said bearing housing, and wherein the other of said inner or outer contact surfaces of said sleeve is cylindrical, said cylindrical surface having a central circumferential recess defined therein.

US Pat. No. 9,944,308

STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle comprising:a guide box that accommodates a steering spindle;
a bracket for holding the guide box in adjustable fashion on a chassis of the motor vehicle; and
a thrust piece through which a clamping shaft extends, serving to fix the guide box relative to the bracket, wherein the thrust piece is disposed on an outer side of a first side web of the bracket, wherein the thrust piece comprises a dome that extends through a slot of the first side web of the bracket and generates a force-fitting connection to the guide box.

US Pat. No. 9,051,997

ROLLER-MOUNTED RACK AND PINION DRIVE

ThyssenKrupp Presta AG, ...

1. A rack and pinion drive for a motor vehicle, including:
a steering housing having a steering pinion rotatably mounted and in engagement with a tooth segment of a toothed rack displaceably
mounted in the steering housing in the direction of a longitudinal axis of the steering housing,

wherein the tooth segment forms an even surface with an upper face thereof facing the steering pinion,
wherein the toothed rack has two guide surfaces, which are even and are oriented at an acute angle to a surface normal of
the tooth segment,

wherein at least one guide roller is provided on each side of the toothed rack, said guide rollers being in contact with the
guide surfaces,

wherein the two guide rollers are provided respectively on a left and a right side of the steering pinion when viewed from
a toothing engagement point with the toothed rack, and

wherein rotational axes of the guide rollers are oriented at an angle of between 0° and 20° in relation to the surface normal.

US Pat. No. 9,919,727

SHAFT FOR STEERING A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A shaft for a steering system of a motor vehicle, the shaft comprising:
an outer tube;
an inner tube being guided fixedly in the outer tube such that the inner tube can telescope relative to the outer tube, the
inner tube rotating with the outer tube such that torque is transmitted between the inner and outer tubes, wherein an inner
end of the inner tube is received in the outer tube; and

a pull-out protection mechanism that is disposed at the inner end of the inner tube and helps secure the inner tube within
the outer tube, the pull-out protection mechanism including a sprung blocking element that impedes the inner tube from being
pulled out of the outer tube,

wherein the outer tube comprises an undercut on which the sprung blocking element can be supported,
wherein the sprung blocking element springs open behind the undercut as the inner tube is pushed into the outer tube, wherein
the sprung blocking element forms a barb that impedes the inner tube from being pulled out of the outer tube.

US Pat. No. 10,137,926

STEERING SHAFT FOR A MOTOR VEHICLE STEERING SYSTEM

THYSSENKRUPP PRESTA AG, ...

1. A steering shaft for a motor vehicle steering system, the steering shaft comprising:a torsion bar;
a first shaft part with a bore that receives the torsion bar, wherein the torsion bar is mounted in the bore such that the torsion bar is rotatable relative to the first shaft part via a bearing element that comprises a prestressing element, wherein the prestressing element includes a first circular portion that is adjacent and biased against one of the first shaft and the torsion bar and a second circular portion that is adjacent and biased against the other of the first shaft and the torsion bar, wherein the first and second circular portions are axially spaced apart; and
a second shaft part rotationally-elastically coupled to the first shaft part by the torsion bar such that torque is transmitted between the first and second shaft parts.

US Pat. No. 10,000,231

DEVICE FOR APPLYING AN AUXILIARY FORCE IN A MOTOR VEHICLE STEERING SYSTEM

THYSSENKRUPP PRESTA AG, ...

1. An apparatus for exerting an auxiliary force in a motor vehicle steering unit, the apparatus comprising:an outer sleeve having two bearing noses positioned opposite one another and extending one of radially inwards towards, or outwards away from, each other, and which bearing noses form a pivot element defining a pivoting axis;
an inner sleeve disposed concentrically within and pivotable relative to said outer sleeve, said inner sleeve further being supported by said pivot element;
a roller bearing disposed concentrically within said inner sleeve and defining a bearing axis, said roller bearing being pivotable about the pivoting axis of the pivot element, which pivot element is disposed outside of the roller bearing;
a driving worm supported in said roller bearing and rotatable about the bearing axis, said driving worm being connectable to an electric motor; and
a worm wheel in operative communication with said driving worm, said driving worm and worm wheel being configured to permit an auxiliary force to be applied from the electric motor to a motor vehicle steering unit through said driving worm and worm wheel.

US Pat. No. 9,316,295

TOOTHED-RACK STEERING GEAR

ThyssenKrupp Presta AG, ...

1. A rack and pinion steering gear for a motor vehicle, including:
a steering pinion connected to a steering shaft;
a gear rack, that is movably mounted in a housing, wherein the steering pinion is engaged with the gear rack, the gear rack
including a pressure piece, which is arranged in the housing in a pressure piece bore, and which is configured to keep the
gear rack engaged free from play with the steering pinion,

wherein the pressure piece has an outer metallic casing inserted with a press fit into the pressure piece bore, wherein at
least one elastomer damping element is arranged in the metallic casing, that wherein a metallic pressure piece core is enclosed
by the at least one elastomer damping element, and wherein an outside of the elastomer damping element is permanently joined
to the metallic casing and an inside of the elastomer damping element is permanently joined to the pressure piece core.

US Pat. No. 9,421,994

STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle, comprising: a steering spindle bearing unit and a steering spindle, which is mounted
in the steering spindle bearing unit so as to be rotatable about a steering spindle longitudinal axis, and a supporting unit
which is provided for the fastening of the steering column in the motor vehicle and on which the steering spindle bearing
unit is held, and the steering spindle bearing unit has a thread and can be adjusted along the steering spindle longitudinal
axis relative to the supporting unit by way of a motor, characterized in that the steering spindle bearing unit, for its adjustment
along the steering spindle longitudinal axis relative to the supporting unit, is connected by means of at least one drive
belt or at least one drive chain to the motor, wherein a nut engages into the thread, and said nut can be rotated by means
of the drive belt or the drive chain, wherein the nut has an internal thread and engages by way of said internal thread into
the thread of the steering spindle bearing unit, and/or in that the steering spindle bearing unit is guided through the nut.

US Pat. No. 9,366,288

BEARING ARRANGEMENT WITH TWO AXIALLY ACTING SPRING SYSTEMS

THYSSENKRUPP PRESTA AG, ...

1. A bearing arrangement for a ball screw mechanism, the bearing arrangement comprising:
a bearing housing;
a bearing supported within said bearing housing;
a plurality of spring elements disposed between said housing and said bearing and configured to support said bearing within
said bearing housing;

an abutment moveable in an axial direction of the bearing; and
wherein said abutment at least partially surrounds said bearing, and wherein said bearing comprises a bearing outer ring and
a bearing inner ring disposed within said abutment.

US Pat. No. 9,669,865

DOUBLE PINION STEERING GEAR WITH AN ELECTRIC MOTOR

THYSSENKRUPP PRESTA AG, ...

1. A steering gear mechanism for motor vehicles, the steering gear mechanism comprising:
a steering system housing;
a toothed rack that is mounted in the steering system housing and is displaceable along a longitudinal axis, the toothed rack
being connected to steerable wheels of the motor vehicle and configured to pivot the steerable wheels, wherein the toothed
rack comprises a first toothed segment that meshes with a first pinion of a pinion shaft, wherein the pinion shaft is connectable
indirectly to a steering wheel via an input shaft, wherein the toothed rack comprises a second toothed segment that is positioned
opposite the first toothed segment with respect to the longitudinal axis, wherein a second pinion engages with the second
toothed segment; and

an electric motor that indirectly drives the first pinion in a first direction and that indirectly drives the second pinion
in a second direction opposite the first direction, wherein the electric motor drives a gear mechanism shaft that surrounds
the pinion shaft and that is connected to the pinion shaft by a gear mechanism.

US Pat. No. 9,102,349

ELECTRICALLY SUPPORTED POWER STEERING HAVING AN IMMBOLIZER

ThyssenKrupp Presta AG, ...

1. A steering system including:
an uninterruptible mechanical positive coupling between a steering wheel and a pinion in the form of a steering shaft;
an auxiliary shaft, which is coupled in a torque-resistant manner via a reduction gear mechanism to the steering shaft; and
a switchable magnetic brake, which in an open switching state is configured to release the auxiliary shaft so that the auxiliary
shaft can rotate in a fixed transmission ratio with the steering shaft, and which in a closed switching state is configured
to lock the auxiliary shaft frictionally with respect to a holder fastened to the vehicle body, wherein the magnetic brake
comprises a yoke fixed to the vehicle body and an anchor configured to be able to rotate with the auxiliary shaft, wherein
a frictional grip between the anchor and the yoke can be produced by means of a magnetic force.

US Pat. No. 9,809,245

BEARING FOR A BALL SCREW DRIVE

THYSSENKRUPP PRESTA AG, ...

1. A bearing for a ball screw drive comprising:
a ball nut that is rotatable about a longitudinal axis and configured to receive a threaded spindle in a concentric manner;
an inner ring in which the ball nut is disposed, wherein an outer circumferential surface of the inner ring is convex at least
in some regions, wherein the inner ring is connected to and rotatable with the ball nut and is immovable in an axial direction;

an intermediate ring in which the ball nut is at least partially disposed, wherein an inner circumferential surface of the
intermediate ring is concave at least in some regions, wherein the intermediate ring is connected to the inner ring via spring
elements for rotation with the inner ring;

an outer ring in which the ball nut is at least partially disposed; and
a belt pulley connected to and rotatable with the intermediate ring, wherein the ball nut is tiltable with respect to the
belt pulley.

US Pat. No. 9,221,489

STEERING SYSTEM WITH OVERLOAD PROTECTION

ThyssenKrupp Presta AG, ...

1. A method for operating an electromechanical steering system for a motor vehicle with variable chassis height, the electromechanical
steering system including a steering shaft having a steering wheel at an upper end of the steering shaft and a steering pinion
at a lower end of the steering shaft, a toothed steering rack, which is configured to be driven by a servo motor through a
re-circulating ball screw drive, wherein the steering pinion meshes with teeth of the toothed steering rack, and a control
unit configured to receive input signals and to generate output signals for driving the servo motor, the output signals being
representative of an assist torque to be provided by the steering system, the method including:
receiving or generating, by the control unit, a chassis height signal indicative of a current chassis height of the vehicle,
and

limiting the assist torque, on the basis of the chassis height signal, to an upper limit, wherein the upper limit is decreased
with an increase of a difference between the current chassis height and a mean chassis height.

US Pat. No. 9,376,139

BALL SCREW HAVING BEARING COMPENSATION

ThyssenKrupp Presta AG, ...

1. A ball screw comprising:
a ball nut rotatable about an axis and configured for receiving a threaded spindle arranged concentrically within the ball
nut,

a roller bearing having an outer bearing ring and an inner bearing ring, wherein the ball nut is arranged at least partially
in the roller bearing,

a sliding ring arranged between the ball nut and the inner bearing ring, wherein the sliding ring includes one or more recesses
configured as through-openings in the sliding ring, and

a belt pulley to which the inner bearing ring is connected in a rotatably fixed manner,
wherein the ball nut is enabled to be moved in an axial or radial direction relative to the belt pulley.

US Pat. No. 9,365,233

STEERING COLUMN WITH COMPOSITE FIBRE ELEMENTS PRODUCED IN A BRAIDING METHOD

THYSSENKRUPP PRESTA AG, ...

1. A method of producing a steering column for a motor vehicle, comprising:
forming a braided core from at least one of a thermoplastic or thermosettable polymer by an injection molding method, the
braided core having substantially a geometry corresponding to a component of the steering column;

coupling the braided core to an auxiliary core configured to improve ease of handling the braided core;
braiding a second set of fibers around the braided core after the coupling of the braided core to the auxiliary core, the
second set of fibers being suitable for use as a composite fiber material;

curing at least one of a synthetic resin or a thermoplastic material at least between the braided core and the braided second
set of fibers so as to materially integrally connect the braided core and the second set of fibers; and

removing the auxiliary core after said curing the at least one of the synthetic resin or the thermoplastic material.

US Pat. No. 9,150,237

LIGHTWEIGHT STEERING COLUMN OF FIBRE COMPOSITE MATERIAL

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle, comprising:
a steering spindle bearing unit;
a steering spindle having a longitudinal axis, said steering spindle being rotatably mounted in said steering spindle bearing
unit about said longitudinal axis;

a holding part configured to couple said steering spindle bearing unit to a body of the motor vehicle; and
a reinforcing element disposed integrally within an interior structure of a material from which at least one component of
the steering column is made, said reinforcing element comprising,

a backing having a plurality of backing fibres woven together,
a plurality of reinforcing fibres disposed on said backing in a plane in at least one predefined path,
a plurality of holding fibres oriented at an angle to said predefined paths of said reinforcing fibres and configured to affix
said reinforcing fibres to said backing, and which holding fibres enclose said reinforcing fibres.

US Pat. No. 10,137,924

ADJUSTABLE STEERING COLUMN HAVING IMPROVED RIGIDITY

THYSSENKRUPP PRESTA AG, ...

1. A steering column arrangement for a motor vehicle comprising:a guide part for rotatably mounting a steering shaft about a longitudinal axis;
a guide box that is mountable on the motor vehicle, the guide part being positioned displaceably in the guide box along the longitudinal axis;
a clamping system for locking the guide part in the guide box, the clamping system switchable between a locked state in which the guide part is secured relative to the guide box and a released state in which the guide part is displaceable relative to the guide box in a direction of the longitudinal axis; and
a first contact surface and a second contact surface disposed between the guide box and the guide part, wherein in the released state the first contact surface is in first frictional contact with a surface of the guide part that opposes a displacement of the guide part along the longitudinal axis relative to the guide box, wherein in the locked state the second contact surface is in second frictional contact with a surface of the guide part such that a frictional force that operates as a holding force acts between the guide box and the guide part, wherein a first coefficient of sliding friction of the first frictional contact of the first contact surface is smaller than a second coefficient of sliding friction of the second frictional contact of the second contact surface.

US Pat. No. 9,409,594

POWER STEERING SYSTEM INCORPORATING DOUBLE WAVE SPRING WITH INSULATING INTERMEDIATE LAYER

THYSSENKRUPP PRESTA AG, ...

1. A power steering system for a motor vehicle, comprising:
a frame;
a bearing disposed in said frame;
a nut rotatably mounted in said bearing and axially supported thereby, and radially supported in said frame along a narrow
circumferential contact surface;

a first and a second wave spring assembly respectively disposed adjacent opposing axial sides of said bearing and configured
to elastically support said mounted nut and bearing relative to said frame, each of said first and second wave spring assemblies
having at least a first wave spring, a second element, and a an elastic intermediate layer disposed between said first wave
spring and said second element;

an axially moveable component disposed in said frame;
a threaded spindle coupled to said moveable component and engaged with said nut; and
a servomotor configured to axially drive said axially moveable component by rotation of said nut.

US Pat. No. 9,738,303

ASSEMBLY HAVING AT LEAST ONE SPRING BODY AND AT LEAST ONE SEPARATELY FORMED LOCKING PART

THYSSENKRUPP PRESTA AG, ...

1. A mechanism for a steering column of a vehicle, the mechanism comprising:
a spring body pivotably mounted or pivotably mountable about a common pivoting axis, wherein the spring body comprises a spring
tongue, a latching device, and a fastening part configured to fasten the spring body to a bolt of the steering column; and

a locking part for engagement in an engagement element of the steering column, the locking part being formed separately from
the spring body, wherein the locking part is pivotably mounted or pivotably mountable about the common pivoting axis,

wherein the spring tongue of the spring body is configured to spring load the locking part,
wherein the latching device of the spring body is configured to latch the spring body into a mating latching device of the
locking part and unlatch the spring body from the mating latching device of the locking part.

US Pat. No. 9,969,421

ENERGY ABSORPTION DEVICE FOR A STEERING COLUMN

THYSSENKRUPP PRESTA AG, ...

1. An energy absorption device for a steering column for a motor vehicle, the energy absorption device comprising:a rail having a guide track with a start and an end, the rail securable to and disposable alongside a steering spindle bearing unit of the steering column;
at least one bending bracket for absorbing energy in a crash event, the bending bracket having a first fastening element for securing the bending bracket to a retaining part capable of being coupled to a support unit and a second fastening element for securing a different portion of the bending bracket to the rail, wherein the first fastening element and the retaining part are displaced relative to the second fastening element and the rail when the at least one bending bracket is deformed, wherein deformation of the at least one bending bracket occurs along the guide track of the rail; and
at least one collision element arranged on the guide track and configured to interact with at least one of the first fastening element or the retaining part, wherein such interaction causes one or more of the at least one collision element, the first fastening element, or the retaining part to deform and absorb energy in a crash event.

US Pat. No. 9,926,001

STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle, the steering column comprising:a support element;
an adjusting element that is displaceable relative to the support element for the rotatable mounting of a steering spindle;
a locking device for locking the adjusting element relative to the support element in a crash event, wherein the locking device comprises a blocking element that is disposed on the support element and is engageable with an engagement part of the adjusting element, wherein the blocking element is configured as a blocking block that is movably disposed in a vehicle movement direction in a blocking element receptacle on the support element; and
a switching element for causing engagement of the blocking element in the engagement part in a crash event, wherein the switching element causes the engagement by way of its mass inertia, wherein a movement direction of the switching element is different than a movement direction of the blocking element.

US Pat. No. 9,802,367

COMPONENT MADE OF A FIBER COMPOSITE MATERIAL AND PROCESS FOR PRODUCING SAME

THYSSENKRUPP PRESTA AG, ...

1. A method of manufacturing a fiber composite component, the method comprising:
winding fibers along predetermined tracks about at least one winding spool of a winding core;
introducing a curable resin into the fibers or a mold that receives the fibers wound about the at least one winding spool;
curing the curable resin to form the fiber composite component;
removing the at least one winding spool from the fiber composite component by moving the at least one winding spool inwardly
into the winding core; and

removing the winding core and releasing the fiber composite component.

US Pat. No. 9,254,864

SAFETY CIRCUIT FOR AN ELECTRIC MOTOR OF AN ELECTROMECHANICAL STEERING SYSTEM

ThyssenKrupp Presta AG, ...

1. An electromechanical motor vehicle power steering mechanism, comprising:
a three-phase, permanently excited electric motor including three phase windings connected to each other in a Y connection;
an electronic controller electronically coupled to the electric motor;
positive and negative feed lines from a direct current voltage motor vehicle electrical system and electronically coupled
to the electronic controller;

a driver circuit coupled via respective connecting lines to the three phase windings of the electric motor, wherein the driver
circuit is configured to connect each of the connecting lines via a respective first MOSFET of a first group to the positive
feed line and via a respective second MOSFET of a second group to the negative feed line as a function of the controller;
and

safety switches comprising six further MOSFETs disposed in a third group and a fourth group, wherein one respective MOSFET
of the first group is located in series with one respective MOSFET of the third group between the positive feed line and one
of the connecting lines to the phase windings, and one respective MOSFET of the second group is located in series with one
respective MOSFET of the third group between the negative feed line and one of the connecting lines to the phase windings,
so that two respective MOSFETs are arranged between each respective feed line and each of the respective connecting lines
leading to the phase windings,

wherein, in each case, at least one MOSFET of the four MOSFETs connected to a respective connecting line is arranged with
a parasitic diode of the at least one MOSFET in the forward direction with respect to the direct current voltage vehicle electrical
system, and wherein at least one diode of the groups of MOSFETs is connected in a reverse direction.

US Pat. No. 9,487,227

STEERING COLUMN PRODUCED FROM FIBRE-COMPOSITE AND ON THE BASIS OF PULTRUSION, BRAIDING AND/OR WINDING TECHNOLOGY

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle with a steering spindle mounted rotatably about a longitudinal axis in a steering
spindle bearing unit and with a supporting unit that is designed to form the connection of the steering spindle bearing unit
to a body of the motor vehicle, at least one component of the steering column being at least partially formed from a fiber-reinforced
composite material, characterized in that the component lies in the flux of force of the steering column between the steering
spindle and the body and in that at least one pultrusion layer is provided, comprising as reinforcing fibers multiple pultrusion
fibers oriented in the direction of the longitudinal axis and parallel to one another.

US Pat. No. 9,051,003

ELECTROMECHANICAL POWER STEERING SYSTEM WITH PLAY COMPENSATION FOR THE WORM GEAR MECHANISM

ThyssenKrupp Presta AG, ...

1. An electromechanical power steering system including:
an electric servomotor;
a worm shaft configured to be driven by the electric servomotor, wherein the worm shaft has a free end that is remote from
the electric servomotor;

a rolling bearing in which the free end of the worm shaft is configured to be mounted, the rolling bearing including an inner
ring, inner rolling bodies, and an intermediate ring, wherein the intermediate ring includes an inner running surface for
the inner rolling bodies and an outer running surface for outer rolling bodies, wherein the inner running surface and the
outer running surface of the intermediate ring are arranged eccentrically with respect to one another;

a steering shaft; and
a worm gear coupled to the steering shaft, wherein the worm shaft meshes with the worm gear,
wherein the worm shaft and the steering shaft are mounted rotatably in a common gearbox casing.

US Pat. No. 10,252,742

ELECTROMECHANICAL POWER STEERING SYSTEM

THYSSENKRUPP PRESTA AG, ...

1. An electromechanical power steering system for a motor vehicle comprising:an electric motor;
a driving worm that is driven by the electric motor and is rotatable about a worm axis;
a worm gear that is coupled to a steering shaft, wherein the driving worm interacts with the worm gear;
a mount that holds a bearing in which the driving worm is mounted, the mount having a region defining a material cutout that comprises a circumferential material reduction, wherein the mount prestresses the driving worm in a direction of the worm gear, wherein the material cutout causes the mount to be torsionally weak about a torsion axis that is disposed perpendicularly with respect to the worm axis, and
a pivoting axis about which the mount is pivotable, wherein the pivoting axis is essentially parallel to the worm axis.

US Pat. No. 10,005,485

STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle, the steering column comprising:a holding element that is securable to a chassis of the motor vehicle;
an adjustment element that is adjustable relative to the holding element, the adjustment element for receiving a steering shaft;
a locking device that locks the adjustment element relative to the holding element, the locking device comprising a clamping lever that is movable between a locking position in which the adjustment element is locked with respect to the holding element and an open position in which the adjustment element is adjustable with respect to the holding element; and
a retaining element that provides a form-fitting connection between the holding element and the adjustment element in the locking position of the clamping lever, the retaining element comprising a slotted guide contour, which in the locking position of the clamping lever is supported against a stroke of the locking device on a contact section of the clamping lever or on a contact section connected for conjoint rotation to the clamping lever.

US Pat. No. 10,005,486

STEERING SHAFT FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering shaft for a motor vehicle, the steering shaft comprising:a first shaft; and
a second shaft part that is telescopable with respect to the first shaft part, wherein the first shaft part comprises a spline region that is at least partially overmolded with a plastic, the spline region including
a guide element that is formed in the overmolding and is in form-fit engagement with the second shaft for guiding the first shaft part relative to the second shaft part during telescoping, wherein the guide element in a spline head region comprises a recess that extends in a direction of a shaft axis of the first shaft part for forming resilient flanks for the guide element elastically lying against a complementary structure of the second shaft part, and
a transmission element that is in engagement with the second shaft part via a loose form-fit for transmitting a torque.

US Pat. No. 9,789,898

ANGLE SUPERIMPOSITION APPARATUS FOR A VEHICLE STEERING DEVICE

THYSSENKRUPP PRESTA AG, ...

1. An angle superposition device for a vehicle steering apparatus, the angle superposition device comprising:
a first shaft that rotates about a first axis;
a second shaft that rotates about a second axis, the first and second axes defining a common longitudinal axis;
a servo drive collectively comprising a rotor and a stator, the rotor having a rotor shaft that is configured for rotation
about the longitudinal axis;

a carrier arrangement that at least partially supports the first shaft, the second shaft and the rotor shaft;
a planetary gear set having:
a planet carrier;
an internal gear; and
at least two planet gears arranged for rotation on the planet carrier and meshed for rotation to the internal gear and a worm
gear, wherein one of the planet carrier and internal gear is rotatably coupled to the first shaft and the other of the planet
carrier and internal gear is rotatably coupled to the second shaft; and

wherein the servo drive superimposes a rotational movement transmitted between the first and second shafts.

US Pat. No. 9,908,556

RECEPTACLE FOR A CONTROL CIRCUIT THAT CONTROLS AN ELECTRIC MOTOR FOR POWER ASSISTANCE IN A VEHICLE STEERING SYSTEM

THYSSENKRUPP PRESTA AG, ...

1. A receptacle for a control circuit that controls an electric motor for power assistance in a vehicle system, comprising:
a housing configured to hold the control circuit therein and having an opening defined therein for receiving the control circuit;
and

a baseplate removeably coupled to said housing at said opening and moveable with respect to said housing between an end position
and a delivery position that is different than said end position, said baseplate being configured to provide a dust tight
closure of said opening when positioned in either of said end position or said delivery position, wherein said baseplate comprises
at least one mounting opening defined therein through which at least one contact of the control circuit is freely accessible
when said baseplate is positioned in the delivery position.

US Pat. No. 9,487,229

STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle, the steering column comprising:
a clamping device, in the open state of which the position of the steering column is adjustable and in the closed state of
which the position of the steering column is fixed and which comprises a clamping bolt, which clamping bolt has a longitudinal
axis, first and second ends which delimit the clamping bolt in an axial direction, and an outer wall which delimits the clamping
bolt in a radial direction, wherein the clamping bolt is rotatable about its longitudinal axis for the opening and closing
of the clamping device by means of an actuation lever, through an opening of which the clamping bolt extends, and wherein
the clamping bolt has an end section adjoining its first end and has a connecting section which adjoins the end section in
the direction of the second end of the clamping bolt and which is situated in the region of the opening of the actuation lever
and in the axial extent of which the clamping bolt is connected to the actuation lever by way of a press fit, wherein the
outer wall of the clamping bolt has, in the connecting section of the clamping bolt, at least two pressing regions which are
spaced apart in the circumferential direction about the longitudinal axis and by way of which the actuation lever is pressed
against the outer wall, and in that, as viewed in a longitudinal central section running through the pressing region, the
outer wall of the clamping bolt has a smaller spacing from the longitudinal axis of the clamping bolt in each pressing region
than at least over a part of that end section of the clamping bolt which adjoins the connecting section.

US Pat. No. 10,046,788

STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle, the steering column comprising:a body-side holder that includes two fastening elements, each fastening element comprising:
a fastening portion for fastening the fastening element to a chassis of the motor vehicle,
a holding portion for holding a casing unit supporting a steering spindle rotatably about an axis of rotation, wherein the holding portion is integral with the fastening portion, wherein the axis of rotation is positioned between the two holding portions of the two fastening elements, and
a connecting portion positioned between the fastening portion and the holding portion, with the connecting portion being integral to the fastening portion and the holding portion,
wherein the connecting portion is connected to the fastening portion via a first line of intersection, wherein the connecting portion is connected to the holding portion via a second line of intersection, wherein the first line of intersection and the second line of intersection define an intermediate plane with a surface normal,
wherein the second line of intersection together with a fastening point of the holding portion to the casing unit defines a holding plane with a surface normal,
wherein the first line of intersection together with a fastening point of the fastening portion to the chassis defines a fastening plane with a surface normal,
wherein the three surface normals are disposed at an angle to one another,
wherein at least one of the two fastening elements, the first line of intersection, and the second line of intersection meet in a region of intersection that serves as an intersecting point or is arranged in a defined spherical region having a diameter, wherein the diameter is smaller than three times a material thickness of a material used for the fastening element.

US Pat. No. 9,909,653

MANUAL TORQUE ADJUSTER

ThyssenKrupp Presta AG, ...

1. A manual torque adjuster in a motor vehicle steering system, including:
an electric motor having a pinion arranged on a motor shaft on an output side of said electric motor,
a belt pulley coupled to transmit torque to a steering shaft physically coupled to a steering wheel of the steering system,
a toothed belt, wherein the pinion is configured to drive the belt pulley via the toothed belt,
a mounting block attached to an output-side bearing bracket of the electric motor which extends beyond a free end of the motor
shaft,

a sensor unit placed on, and attached to, the mounting block and configured to sense a position of the motor, the sensing
unit being connected to an electronic controller that controls the electric motor, and at least one magnet attached to the
output-side end of the motor shaft, wherein the at least one magnet is arranged so that a magnetic field of the at least one
magnet is detectable by the sensor unit.

US Pat. No. 9,193,382

YAW RATE SIGNAL OFFSET CALCULATION

ThyssenKrupp Presta AG, ...

1. A method for calculating the offset of a yaw rate signal, which is provided by a yaw rate sensor in a motor vehicle, the
method being implemented in an electronic system of an automobile which comprises a control unit, an electrically powered
or assisted rack and pinion steering with a steering or pinion angle sensor which generates a pinion angle speed signal, wheel
speed sensors associated with at least one road wheel which generate at least one wheel speed signal, and a yaw rate sensor
which generates the yaw rate signal, the method comprising:
a. observing the pinion angle speed signal, the at least one wheel speed signal, and the yaw rate signal, for a time;
b. starting a waiting time if the pinion angle speed signal is below a pinion angle speed signal threshold, the wheel speed
signal is below a wheel speed signal threshold, and the yaw rate signal is below a yaw rate signal threshold;

c. starting a calculation for a time of a yaw rate offset if, after the waiting time, the pinion angle speed, wheel speed,
and yaw rate signals are still below their respective thresholds, wherein the starting the calculation of the time of the
yaw rate offset includes acquiring an average yaw rate for a predetermined time period; and

d. storing the average yaw rate as the yaw rate offset in the control unit if, during the predetermined time period, the pinion
angle speed, wheel speed, and yaw rate signals remain below their respective thresholds;

e. determining if the pinion angle speed, wheel speed, and yaw rate signals still remain below their thresholds, and if so,
then proceeding to c, or if at least one of the pinion angle speed, wheel speed, or yaw rate signals exceeded its respective
threshold, then proceeding to a.

US Pat. No. 9,802,636

DEVICE FOR GUIDING A BODY AND STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. An apparatus for guiding a body, comprising:
a first guide wall;
a second guide wall which is arranged parallel to and at a distance from the first guide wall, wherein the first guide wall
and the second guide wall are connected to one another by means of a first head piece at one end in such a way that the guide
walls and the first head piece delimit a guide opening, wherein the guide opening is bordered by a substantially planar front
end on one side and by a rear end on another side thereof, and wherein the guide walls have surfaces which face one another,
surround a circumference of the guide opening and are directed inward with respect to the guide opening;

at least one lug with a material thickness (f) which supports a latching hook, wherein the latching hook is at a distance
(d) measured from the lug, and therefore the distance of the latching hook from the front end corresponds to a sum of the
distance (d) and the material thickness (f) which is designed to secure the apparatus to a supporting part by holding a wall
of the supporting part, wherein the inwardly directed surfaces of the guide walls each have a sliding area, wherein the distance
of the sliding areas from one another determines the clear width of the guide opening, and in that a distance (e) of the sliding
areas from the front end is at least 75% of the distance of the latching hook from the front end; and

wherein a first width of the guide opening at the front end of the apparatus is greater than a second width at the rear end,
wherein the second width of the rear end of the apparatus is selected such that the surfaces of the guide walls, which surfaces
are directed inward from the rear end, form the sliding areas, and wherein a transition region is provided between the first
width at the front end and an intermediate width in a region of the sliding areas.

US Pat. No. 10,507,866

ELECTRIC POWER STEERING SYSTEM WITH RIPPLE COMPENSATION

THYSSENKRUPP PRESTA AG, ...

1. An electric power steering apparatus for assisting steering of a motor vehicle by conferring torque generated by an electric motor to a steering mechanism by a rotation of a rotor of the electric motor relative to a stator, the electric power steering apparatus comprising:a steering controller that receives signals representative of torque applied to a steering wheel and determines a target motor torque;
a motor controller comprising a first control portion that receives the target motor torque from the steering controller and an electrical angular frequency of the rotor and transfers the target motor torque into target currents expressed in a coordinate system fixed to the electrical angular frequency of the rotating rotor, wherein the motor controller comprises a coordinate transformation portion to transfer the target currents into target voltages expressed in a coordinate system fixed to the stator;
a ripple compensation unit that determines compensation voltages, the ripple compensation unit comprising
a first ripple control portion that receives the target motor torque from the steering controller and the electrical angular frequency of the rotor to transfer the target motor torque into compensation currents expressed in a coordinate system fixed to a rotating part that rotates n-times faster than the electrical angular frequency of the rotating rotor, and
a ripple coordinate transfer portion to transfer the compensation currents into the compensation voltages, which are expressed in the coordinate system fixed to the stator;
an adder to add to the target voltages the compensation voltages output from the ripple coordinate transfer portion of the ripple compensation unit; and
an inverter that transforms the target voltages into motor currents.

US Pat. No. 10,053,139

DAMPING ECCENTRIC MOTION LINK IN CEPS USAGE

THYSSENKRUPP PRESTA AG, ...

1. An electromechanical servo steering system comprising:a worm wheel arranged on a steering shaft, with the worm wheel being operatively connected to an input shaft of a steering gear mechanism;
a worm shaft that meshes with the worm wheel, the worm shaft and the steering shaft being rotatably mounted in a common gear mechanism housing;
an electric servomotor for driving the worm shaft, wherein the worm shaft includes a first end and a second end, the first end being distal from the electric servomotor and mounted in a first rolling bearing, the second end being proximate to the electric servomotor and having a second rolling bearing that is received in an eccentric lever; and
a bearing that pivotably fastens the eccentric lever to the common gear mechanism housing, wherein the bearing comprises a pin surrounded by a helical spring having a hook, the pin serving to mount the eccentric lever pivotably to the common gear mechanism housing, wherein the hook of the helical spring engages a notch of the eccentric lever and torques the eccentric lever.

US Pat. No. 10,035,534

STEERING SHAFT FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering shaft for a motor vehicle, the steering shaft comprising:a first shaft; and
a second shaft part that is telescopable with respect to the first shaft part, wherein the first shaft part comprises a spline region that is at least partially overmolded with a plastic, the spline region including
a guide element that is formed in the overmolding and is in form-fit engagement with the second shaft for guiding the first shaft part relative to the second shaft part during telescoping, wherein the guide element in a spline head region comprises a recess that extends in a direction of a shaft axis of the first shaft part for forming resilient flanks for the guide element elastically lying against a complementary structure of the second shaft part, and
a transmission element that is in engagement with the second shaft part via a loose form-fit for transmitting a torque.

US Pat. No. 9,998,051

METHOD FOR THE REDUCTION AND MODULATION OF NOISE OF AN ELECTRIC MOTOR

ThyssenKrupp Presta AG, ...

1. A method for noise modulation of an electric motor, wherein the electric motor is a multiphase synchronous motor driven by means of a motor control unit using a vector regulation, the method including:obtaining actual values for rotated current components id and iq in an open-loop control system, wherein id corresponds to a magnetisation current and iq corresponds to a torque-forming current of the synchronous motor;
comparing the actual values with predetermined reference variables;
converting, in a duty cycle for a pulse-width modulation (PWM) generator, via a first controller and a first transformation stage, differences between the actual values and the reference variables into control variables in order to regulate the actual values (iq, id) to the reference,
wherein the magnetisation current-forming current component (id) is adapted by means of an acoustic controller to a desired acoustic state depending on an acoustic state that was measured by a measuring device and was transmitted by means of a signal output to the motor control unit, wherein, in the acoustic controller, a reference acoustic variable is compared with the acoustic state corresponding to a default function, and a resulting deviation is translated into electrical variables and is converted in a model/characteristic field into dq-current target variables.

US Pat. No. 10,040,472

STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle, the steering column comprising a steering column jacket with a jacket surface having a retaining segment, wherein the retaining segment at least partially surrounds a bearing for rotatably mounting a steering spindle about an axis of rotation, wherein the retaining segment includes a tab that secures the bearing in the steering column jacket in a direction of the axis of rotation, the tab being connected to the retaining segment of the steering column jacket along a bending edge and having a bevel disposed on a side of the tab that faces the bearing, wherein a projection angle between the bending edge and a projected axis of rotation is at most 45°, wherein a free end of the tab is bent around the bending edge toward the axis of rotation.

US Pat. No. 10,343,708

STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle comprising:an adjusting unit in which a steering spindle is mounted so as to be rotatable about a longitudinal axis of the steering spindle;
a holding unit configured to be connected to a body of the motor vehicle, wherein the holding unit supports the adjusting unit;
a clamping device, wherein in a fixing position the clamping device locks the adjusting unit in a normal relative mode to the holding unit, wherein in an unlocked position the clamping device enables adjustment of the adjusting unit relative to the holding unit at least in a longitudinal direction, wherein the adjusting unit is movable in the longitudinal direction in the normal relative mode when a predefined force is exceeded;
an energy absorption element that extends into an opening of a wedging housing parallel to the longitudinal direction, the opening including a wedging section with inner wall regions converging toward one another in a wedge shape in the longitudinal direction, wherein the wedging housing is supported on the holding unit in the longitudinal direction in the normal relative mode, wherein an actuating element of the clamping device interacts with the wedging housing, wherein in the unlocked position the energy absorption element is movable in the longitudinal direction in the opening of the wedging housing and in the fixing position the energy absorption element is lockable in the opening of the wedging housing; and
a wedging element that is movable into the wedging section of the opening, the wedging element being disposed between the energy absorption element and at least one of the inner wall regions of the opening,
wherein a sum of dimensions of the wedging element and the energy absorption element, as measured between the inner wall regions of the wedging section of the opening that oppose one another, is greater than a shortest distance between the inner wall regions that are converging.

US Pat. No. 10,293,846

LOCKING DEVICE FOR AN ADJUSTABLE STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A locking device for an adjustable steering column for a motor vehicle comprising:an actuating shaft that is mounted so as to be rotatable about a rotational axis;
an operative element of a clamping device, wherein the actuating shaft is connected to the operative element; and
a rotor of a dry rotational damper, with the actuating shaft being coupled to the rotor, wherein the rotor is mounted rotatably in a housing and is configured to be driven rotationally about a rotor axis by the actuating shaft, wherein the rotor comprises a blade that projects radially with respect to the rotor axis and that has a contact face that makes frictional contact with a contact track on an inner face of the housing, wherein a rotational movement of the rotor is damped in a rotational direction, wherein a damping action is based on dry friction of the contact face on the contact track.

US Pat. No. 10,236,812

STRAY MAGNETIC FIELD COMPENSATION FOR A ROTOR POSITION SENSOR

THYSSENKRUPP PRESTA AG, ...

1. A method for error compensating a measurement of a position of a rotor of an electric motor in a power steering system of a motor vehicle, wherein the electric motor generates torque for assisting steering of the motor vehicle, wherein stray magnetic fields of electric motor currents affect the measurement of the rotor position by a rotor position sensor, the method comprising:measuring the rotor position with the rotor position sensor;
determining a target motor torque based on signals representative of at least a vehicle velocity and a torque applied to a steering wheel;
transferring the target motor torque into target voltages;
transforming the target voltages into a current vector in a rotating reference frame fixed to the rotor of the electric motor;
transforming the current vector into motor currents expressed in a coordinate system fixed to a stator of the electric motor;
calculating at least two compensation values based on the current vector or a current vector transformed from the motor currents into a coordinate system fixed to the rotor, based on the rotor position, and based on hardware dependent parameters, wherein the at least two compensation values account for errors in the measured rotor position due to the stray magnetic fields of electric motor currents;
calculating a compensated rotor position signal by subtracting the at least two compensation values of the measured rotor position; and
transferring the compensated rotor position signal as part of a feedback loop to the determination of the target motor torque.

US Pat. No. 10,421,477

ENERGY-ABSORBING STEERING COLUMN ASSEMBLY

THYSSENKRUPP PRESTA AG, ...

1. A steering column assembly for use with a vehicle, the steering column assembly comprising:a bracket connectable to the vehicle;
a jacket having an aperture, the jacket having a wall thickness at the aperture;
a steering shaft supported by the jacket, the steering shaft being rotatable relative to the jacket about a longitudinal axis of the steering shaft;
a bending strap having a jacket portion and a rack portion, the rack portion overlying and being separated from the jacket portion;
a locking assembly configured to selectively restrict the rack portion from moving relative to the bracket; and
an engaging body irrotatably positioned at least partially inside the jacket aperture, the engaging body being coupled to the bending strap jacket portion and thereby coupling the bending strap rack portion to the jacket, the engaging body having a thickness that extends toward the longitudinal axis of the steering shaft past the jacket wall thickness at the aperture.

US Pat. No. 10,286,945

ADJUSTABLE STEERING COLUMN ASSEMBLY

thyssenkrupp AG, Essen (...

1. A steering column assembly for use with a vehicle, comprising:a steering shaft;
a bracket comprising a base and a first arm extending from the base; the base being configured to be anchored to a chassis of the vehicle; the first arm having an adjustment slot; the first arm having upper and lower brakes separated from one another by empty space;
a jacket rotatably supporting the steering shaft; the jacket having an inner portion, an outer portion, and a locking assembly for maintaining the jacket in various respective positions relative to the bracket; the outer portion having an axle passage positioned between the inner portion and the bracket base; the locking assembly having a shaft passing through the axle passage and the adjustment slot of the first arm; and
a stop located along the jacket adjacent the first arm in the empty space between the upper and lower brakes; the stop being located away from the adjustment slot of the first arm; the stop having a main body, an upper leaf spring extending above the main body, and a lower leaf spring extending below the main body.

US Pat. No. 10,363,953

STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle comprising:a supporting unit that is connectable to a chassis of the motor vehicle;
a displacement unit that is displaceable relative to the supporting unit along a displacement path in a crash event; and
an energy absorption element disposed between the supporting unit and the displacement unit, the energy absorption element comprising a local laser solidification on or adjacent local areas of the energy absorption element that are configured to preferentially deform and/or tear relative to other areas of the energy absorption element, wherein the energy absorption element is configured to absorb energy over the displacement path in the crash event and wherein the other areas are free of local laser solidification.

US Pat. No. 10,589,775

FEEDBACK ACTUATOR FOR A STEERING MECHANISM

THYSSENKRUPP PRESTA AG, ...

1. A feedback actuator for a steering mechanism for a motor vehicle, the feedback actuator comprising:a steering adjuster that acts on steered wheels and is controlled electronically based on steering commands of a driver of the motor vehicle;
a steering shaft via which feedback from a road is transmitted to a steering wheel; and
a preloaded belt drive and an electric motor configured as torque-generating means,
wherein the preloaded belt drive comprises a spring-loaded cable pull.

US Pat. No. 10,370,023

PRODUCTION METHOD FOR A MODULAR STEERING COLUMN HAVING EXTRUDED PROFILED ELEMENTS

THYSSENKRUPP PRESTA AG, ...

1. A method for producing a steering column for a motor vehicle, the steering column comprising an inner steering column tube for receiving a steering shaft such that the steering shaft is rotatable about a longitudinal axis of the steering shaft; an outer steering column tube that receives the inner steering column tube and includes a longitudinal slot that extends in a direction of the longitudinal axis; a clamping apparatus that is switchable between a release position in which the inner steering column tube is adjustable with respect to the outer steering column tube and a fixing position in which the inner steering column tube is fixed with respect to the outer steering column tube, wherein the clamping apparatus comprises a clamping axle that is guided through a recess in the outer steering column tube transversely with respect to the longitudinal axis, wherein the longitudinal slot has a greater width in the release position than in the fixing position, the method comprising:manufacturing a single blank of the outer steering column tube using an extrusion process;
cutting the single blank to a required length;
producing a predefined number of recesses at a predefined spacing from an end side of the single blank of the outer steering column by way of a metal cutting operation for configuring functional elements in the outer steering column tube;
manufacturing a single blank of the inner steering column tube using an extrusion process;
cutting the single blank of the inner steering column tube to a required length and reducing a cross-sectional area of the single blank of the inner steering column tube by up to 30% in each length region of the inner steering column tube; and
attaching components to the steering column.

US Pat. No. 10,589,714

DETENT STAR WHEEL FOR A STEERING COLUMN OF A MOTOR VEHICLE AND METHOD FOR PRODUCING THE SAME

THYSSENKRUPP PRESTA AG, ...

1. A latching star wheel for a steering lock of a motor vehicle, comprising:a hollow profile with a longitudinal axis,
a plurality of projections formed about the hollow profile,
latching recesses formed between adjacent pairs of the plurality of projections and disposed coincident with a circular envelope with a center, the latching recesses extending parallel to the longitudinal axis across a full length of the latching star wheel and configured to engage with a locking bar of the steering lock that is movable between a locking position and an unlocking position, and
a plurality of contact surfaces formed on an inner surface of the latching star wheel forming an interrupted surface, each respective one of the plurality of contact surfaces corresponding in circumferential position to a respective one of the latching recesses, each of the plurality of contact surfaces having an arc parallel to the circular envelope.

US Pat. No. 10,427,706

STEERING COLUMN WITH A BEARING SEAT WHICH CAN BE MOUNTED IN A FLEXIBLE MANNER

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle, the steering column comprising:a casing tube that extends along a longitudinal axis and has an at least partially non-circular inner cross section;
a steering spindle that is mounted in at least one bearing in the casing tube so as to be rotatable about the longitudinal axis, wherein the at least one bearing comprises an outer ring that for purposes of mounting interacts with an inner bearing surface disposed on the steering spindle, wherein the outer ring fits in an adapter comprising an outer circumferential configuration that is compatible with the at least partially non-circular inner cross section of the casing tube and an interior annular bearing seat, wherein the at least partially non-circular inner cross section of the casing tube that is compatible with the adapter extends over a length of at least three times a bearing width of the at least one bearing; and
fastening elements for fastening the steering column to the motor vehicle,
wherein the inner cross section of the casing tube is bounded by an inner circumferential surface, the inner cross section comprising at least two partially cylindrical surfaces between which rectangular grooves are disposed, and
wherein the at least two partially cylindrical surfaces bound a tubular guide into which an inner casing tube is inserted for rotation therewith and in an axially displaceable manner.

US Pat. No. 10,336,365

ELECTROMECHANICAL POWER STEERING SYSTEM

THYSSENKRUPP PRESTA AG, ...

1. An electromechanical power steering system for a motor vehicle comprising:an electric motor having a stator that is fitted with at least two electrical winding sets, the electric motor having a rotor that is fitted with permanent magnets, wherein the electric motor assists with steering by exerting a steering movement, which is introduced into an input means by a driver, on the motor vehicle;
a main control unit that comprises a basic controller and that determines a motor current prespecification, which is configured to be output to the at least two electrical winding sets, from a prespecified steering value based on the steering movement that is introduced by the driver;
a power control unit that provides and feeds the motor current prespecification, which the main control unit determines, to the at least two electrical winding sets;
a driver control system for each of the at least two electrical winding sets, wherein the driver control systems and the basic controller of the main control unit each include a microcontroller and are combined to form an assembly; and
a power driver for each of the at least two electrical winding sets, wherein each power driver is connected to one of the driver control systems, wherein at least two of the power drivers are disposed in the power control unit and are configured as half-bridges with power semiconductor switches,
wherein the microcontrollers of the basic controller and the driver control systems form a redundant system with respect to a failure of at least one of the microcontrollers.

US Pat. No. 10,654,516

STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle comprising:an inner casing tube in which a steering spindle is rotatably mounted about a longitudinal axis of the steering spindle;
an outer casing unit in which the inner casing tube is retained, the outer casing tube being connectable directly or indirectly to a body of the motor vehicle;
a clamping device that secures the outer casing unit relative to the inner casing tube in a fixing position, wherein in an enabling position the clamping device enables adjustment of the inner casing tube relative to the outer casing unit at least in a longitudinal direction, wherein the clamping device comprises an arresting element that is supported in the longitudinal direction on the outer casing unit, wherein in the fixing position the arresting element is connected in a longitudinally non-displaceable manner to an engagement element connected to the inner casing tube, wherein in the enabling position the arresting element is released from the engagement element and enables movement of the inner casing tube relative to the outer casing unit in the longitudinal direction; and
an energy absorption device that couples the inner casing tube and the outer casing unit, the energy absorption device comprising at least two energy-absorption elements and a coupling means, with the coupling means being connected to the outer casing unit and the at least two energy-absorption elements being disposed between the coupling means and the engagement element, wherein the coupling means is configured to couple in a coupled-in state or decouple in a decoupled state at least one of the at least two energy-absorption elements between the inner casing tube and the outer casing unit, wherein in the coupled-in state in the fixing position of the clamping device the at least one of the at least two energy-absorption elements is plastically deformable during displacement of the inner casing tube relative to the outer casing unit.

US Pat. No. 10,597,062

STEERING COLUMN ASSEMBLY WITH CRASH BRACKET ROTATION DAMPENING MECHANISM AND METHODS OF MAKING AND USING SAME

THYSSENKRUPP PRESTA AG, ...

1. A steering column assembly for a vehicle, comprising:a motorized length adjustment drive unit;
a box rocker having a control surface;
a column jacket;
a crash bracket releasably coupled to said column jacket; and
an energy absorbing member having a proximal end and a distal end; said proximal end being coupled to said crash bracket; said distal end being coupled to said column jacket;
a plate coupled to said box rocker such that a channel is formed between said plate and said control surface; and
at least one anti-rotation member coupled to said crash bracket and extending through said channel;
wherein, said at least one anti-rotation member is adapted to inhibit rotation of said crash bracket during a frontal collision of said vehicle.

US Pat. No. 10,532,762

ENERGY-ABSORBING STEERING COLUMN

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle, the steering column comprising:a steering column tube in which a steering spindle is mounted rotatably about a longitudinal axis, the steering column tube being fastened to a carrier that is connected to a vehicle chassis such that in normal operation of the motor vehicle the steering column tube is retained non-displaceably on the carrier by at least one of friction forces or elastic forces, wherein the steering column tube is displaceable in a direction of the longitudinal axis in a crash event where a force that acts on the steering spindle in a direction of a front of the motor vehicle exceeds a threshold value;
an energy-absorption device that comprises a bending element that is connected to the carrier and to the steering column tube, wherein the energy-absorption device is deformed in a crash event as a result of the longitudinal displacement of the steering column tube and thereby absorbs at least part of a kinetic energy of the steering column tube; and
an insertion body that surrounds outer surfaces of the bending element and prevents the bending element from directly contacting adjacent structural elements, wherein in a crash event the insertion body deforms together with the bending element,
wherein the bending element is a bending wire that is bent in a U-shape and comprises:
a shorter limb that is oriented substantially parallel to the longitudinal axis;
a bent end or an end with an eye; and
a longer limb that is oriented substantially parallel to the longitudinal axis,
wherein in a crash event the shorter limb is lengthened and the longer limb is shortened by deformation of the bending wire, wherein the insertion body comprises:
a shorter portion that covers part of the shorter limb;
a central portion bent in a U-shape; and
a longer portion that engages from an outside around a portion of the longer limb that is configured to be deformed; and
comprising lugs disposed on the central portion of the insertion body, wherein the lugs are disposed laterally opposite one another in pairs that are integral with the insertion body and are bent inwards to laterally engage around the bending element.

US Pat. No. 10,315,683

ADJUSTABLE STEERING COLUMN ASSEMBLY

THYSSENKRUPP PRESTA AG, ...

1. A steering column assembly for use with a vehicle, comprising:a steering shaft having a longitudinal axis;
an inner jacket supporting the steering shaft with the steering shaft being rotatable about the longitudinal axis; and
an outer jacket comprising:
a first end that is passenger facing and an opposite second end;
a cavity defined by an inner surface extending from the first end toward the second end; and
at least two protrusions extending from the inner surface into the cavity, each protrusion comprising:
a curved contact surface;
a front end at or adjacent the outer jacket first end, the front end having first and second endpoints with a front arc length therebetween;
a rear end extending toward the outer jacket second end, the rear end having third and fourth endpoints with a rear arc length therebetween; and
two sides respectively connecting the first and second endpoints of the front end with the third and fourth endpoints of the rear end, such that a first of the sides is associated with the first and third endpoints and a second of the sides is associated with the second and fourth endpoints;
wherein each of the at least two protrusions is configured such that:
(a) projecting the front end, the rear end, and the two sides onto a flat surface; and
(b) measuring an angle between one straight line passing through the first and third endpoints and another straight line passing through the second and fourth endpoints
 results in an angular measurement of at least one degree and no more than fifteen degrees; and
wherein the curved contact surface of each of the at least two protrusions supports the inner jacket with the inner jacket being telescopic along the longitudinal axis.

US Pat. No. 10,137,649

STEERING COLUMN PRODUCED FROM FIBRE-COMPOSITE AND ON THE BASIS OF PULTRUSION, BRAIDING AND/OR WINDING TECHNOLOGY

THYSSENKRUPP PRESTA AG, ...

1. A process of forming a fiber composite component, the process comprising:pulling a first set of rovings through a template;
braiding a second set of rovings onto the first set of rovings in a braiding head so as to form a braid;
impregnating the braid with a curable resin;
curing the impregnated braid in a heated mold so as to form a blank, wherein the heated mold gives the blank a profiled shape;
cutting the blank to size by a cutting device; and
introducing a milled relief with an opening into a guiding ridge of the blank.

US Pat. No. 10,532,761

SPINDLE AND STEERING COLUMN ASSEMBLY HAVING SAME

THYSSENKRUPP PRESTA AG, ...

1. A steering spindle, comprising:a hollow outer tube having a lengthening section and an attachment section, the attachment section having a transition portion and a connection portion, the lengthening section adjoining the attachment section at an end of the transition portion, the transition portion being between the lengthening section and the connection portion, an outer diameter of the connection portion being smaller than an outer diameter of the lengthening section, the lengthening section having first and second portions, the second portion being between the first portion and the transition portion, the outer tube terminating at an end of the connection portion; and
a hollow inner tube press-fit into the outer tube, an end of the inner tube being adjacent the end of the transition portion, the inner tube not extending into the attachment section, the inner tube not extending into the first portion, a length of the second portion being at least equal to a length of the inner tube.

US Pat. No. 10,486,732

STEERING COLUMN FOR A MOTOR VEHICLE, AND ENERGY ABSORPTION DEVICE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle comprising:a supporting unit configured to be connected to a body of the motor vehicle;
a sleeve unit in which a steering spindle is rotatably mounted about a longitudinal axis of the steering spindle, the sleeve unit being accommodated in the supporting unit so as to be displaceable relative to the supporting unit in a longitudinal direction parallel to the longitudinal axis of the steering spindle; and
an energy absorption device disposed between the supporting unit and the sleeve unit, the energy absorption device comprising first and second bending elements that each comprise an elongate input limb that is parallel to the longitudinal direction and a free end and another end that merges into a bend to which a fixed limb is connected, wherein either the free end is connected to the supporting unit and the fixed limb is connected to the sleeve unit, or the free end is connected to the sleeve unit and the fixed limb is connected to the supporting unit,
wherein the second bending element mirrors the first bending element and is disposed adjacent to the first bending element,
wherein the second bending element is formed in a mirror-inverted manner with respect to the first bending element and is positioned mirror-symmetrically adjacent to the first bending element, and
wherein outer sides of the elongate input limbs of the first and second bending elements face away from the bends and lie parallel against one another.

US Pat. No. 10,458,462

STEERING COLUMN ENGINEERED TAPE

ThyssenKrupp Presta AG, ...

1. A steering column assembly for a motor vehicle, the steering column assembly comprising:a box rocker having a rocker body including a box rocker inner surface that defines a box rocker bore, the box rocker configured to be fixed relative to the motor vehicle in an assembled position;
a column jacket configured to be slidably received into the box rocker bore, the column jacket having a column jacket outer diameter including an outer surface that opposes the box rocker inner surface the column jacket being translatable within the box rocker bore between first and second positions; and
a first section of tape disposed between the box rocker inner surface and the column jacket outer surface wherein the first section of tape mitigates wear between the column jacket and the box rocker during translation of the column jacket within the box rocker bore.

US Pat. No. 10,308,275

STEERING COLUMN WITH LONGITUDINAL STOP HAVING AN ADJUSTABLE RELEASE FUNCTION IN THE EVENT OF A CRASH

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle comprising:a casing unit in which a steering spindle is mounted such that the steering spindle is rotatable about a steering spindle longitudinal axis;
a bracket unit that is fixed or fixable on the motor vehicle, wherein the casing unit is held in or on the bracket unit such that the casing unit is adjustable in at least one direction of parallel or transverse with respect to the steering spindle longitudinal axis;
a fixing mechanism including a fixing element that is rotatably mounted about a fixing element pivot axis, with the casing unit being fixable in different positions by the fixing mechanism, wherein in a locked position of the fixing element the casing unit is fixed in position in or on the bracket unit, wherein in a released position of the fixing element the casing unit is adjustable relative to the bracket unit in the at least one direction of parallel or transverse with respect to the steering spindle longitudinal axis; and
a movably mounted stop body that interacts directly or indirectly with the fixing element, with the movably mounted stop body comprising a stop face, wherein in the released position of the fixing element the movably mounted stop body is disposed in a first position in which the movably mounted stop body limits an adjustability of the casing unit relative to the bracket unit in the at least one direction of parallel or transverse with respect to the steering spindle longitudinal axis, wherein in the locked position of the fixing element the movably mounted stop body is disposed in a second position in which the movably mounted stop body is disengaged with the casing unit, wherein a spacing of the stop face from the fixing element pivot axis is greater in the released position of the fixing element than in the locked position of the fixing element.

US Pat. No. 10,197,159

MULTI-PIECE CLEVIS FOR A GEAR SHIFT ASSEMBLY

THYSSENKRUPP PRESTA AG, ...

1. A clevis assembly for use in a gear shift assembly of a vehicle, the clevis assembly comprising:a clevis bracket having a first end and a second end, the clevis bracket configured to be linked to a gear shift lever at the first end thereof; and
at least one additional member rigidly coupled to the second end of the clevis bracket between first and second plates of the clevis bracket, wherein the at least one additional member comprises one or more contact surfaces configured to interact with one or more components of the gear shift assembly.

US Pat. No. 10,654,509

ADJUSTMENT DRIVE FOR A STEERING COLUMN, STEERING COLUMN THAT IS ADJUSTABLE BY MOTOR FOR A MOTOR VEHICLE AND METHOD FOR SETTING A BEARING ARRANGEMENT OF AN ADJUSTMENT DRIVE

ThyssenKrupp Presta AG, ...

1. An adjustment drive for a steering column that is adjustable by motor for a motor vehicle, comprising:a threaded spindle with an axis, said threaded spindle engaging in a spindle nut, a drive unit and a gear wheel which is connected to the spindle nut or the threaded spindle for rotation therewith, which is driveable to rotate about the axis by the drive unit and which is rotatably mounted about the axis in a bearing housing in a bearing arrangement between two outer bearing rings that are axially supported at the bearing housing,
wherein the outer bearing rings each have, on their sides facing one another, a circumferential outer bearing face that is coaxial to the axis, said outer bearing face in each case lying opposite a bearing face embodied on the end side at the gear wheel, and
at least one of the outer bearing rings supported in an axially resilient manner at the bearing housing by way of an elastic preloading element, which exerts a preloading force that axially braces the two outer bearing rings against one another.

US Pat. No. 10,654,515

PIVOT BEARINGS FOR A HEIGHT-ADJUSTABLE STEERING COLUMN

THYSSENKRUPP PRESTA AG, ...

1. A height-adjustable steering column for a motor vehicle, the height-adjustable steering column comprising:a retaining unit that is fixedly connectable to a chassis of the motor vehicle; and
an actuating unit in which a steering spindle is rotatably mounted, wherein the actuating unit is mounted pivotably on the retaining unit by way of two pivot bearings disposed at a horizontal distance to one another on a pivot axis, wherein each of the pivot bearings comprises an axial protruding dihedron projection and a recess that is engaged with the axial protruding dihedron projection, the recess comprising an introduction region for introduction of the axial protruding dihedron projection in a radial direction with respect to the pivot axis, wherein the introduction region comprises an inner span that is adapted to a width of the axial protruding dihedron projection, the introduction region forming a transition into a partially circular bearing region, wherein an inner diameter of the partially circular bearing region is adapted to an outer diameter of the axial protruding dihedron projection so that the axial protruding dihedron projection is mounted pivotably in the partially circular bearing region after a rotation about the pivot axis by at least 5°.

US Pat. No. 10,377,419

STEERING SHAFT FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering shaft for a motor vehicle comprising:a first shaft part connected to a second shaft part for transferring torques between the first and second shaft parts; and
a damping element disposed between the first shaft part and the second shaft part, the damping element for damping at least one of oscillations or vibrations, wherein the damping element contacts a carrier along a contact area and is adhesively bonded to the carrier only at a fixing region, wherein the fixing region occupies only a portion of an axial length of the contact area, wherein the carrier is a sleeve disposed between the first shaft part and the second shaft part.

US Pat. No. 10,343,707

STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle comprising:an adjustment unit with a steering spindle that is mounted rotatably in a casing tube so as to be rotatable about a longitudinal axis of the steering spindle;
a supporting unit that is connectable to a body of the motor vehicle, wherein the adjustment unit is configured to be accommodated in the supporting unit;
a clamping device, wherein in a securing position the clamping device secures the adjustment unit relative to the supporting unit in normal operation, wherein in a release position the clamping device permits movement of the adjustment unit relative to the supporting unit at least in a longitudinal direction, the clamping device comprising:
an actuating element that interacts with a clamping mechanism that converts an actuation of the actuating element into a clamping stroke directed transversely to the longitudinal axis for clamping the supporting unit to the adjustment unit, and
a locking part that is supported in the longitudinal direction on the supporting unit, wherein in the securing position a form-fitting element of the locking part engages non-displaceably in the longitudinal direction with a form-fitting element of an engagement part connected to the adjustment unit, wherein in the release position the form-fitting element of the locking part is spaced apart from the form-fitting element of the engagement part, thereby permitting movement of the adjustment unit relative to the supporting unit in the longitudinal direction;
an energy absorption device that connects the engagement part to the adjustment unit; and
a lifting mechanism that is connected to the actuating element and is separate from the clamping mechanism, wherein the lifting mechanism is connected to the locking part and converts the actuation of the actuating element into a working stroke of the locking part relative to the engagement part, wherein the working stroke of the lifting mechanism is assignable independently of the clamping stroke of the clamping mechanism.

US Pat. No. 10,641,369

BALL RETURN MEANS WITH A FASTENING SLEEVE WHICH CAN BE MOUNTED AXIALLY

THYSSENKRUPP PRESTA AG, ...

1. A power steering system comprising:an axially-movable rack having a threaded spindle formed thereon;
a ball nut that is mounted in a bearing so as to be rotatable in a housing, wherein the ball nut is engaged with the threaded spindle formed on the axially-movable rack, wherein an inside of the ball nut comprises a ball screw thread on which balls are configured to roll;
a servomotor that drives the axially-movable rack via the ball nut; and
an external ball return comprising a deflector and sleeve separate from the ball nut, the external ball return configured to form a return channel external to the ball nut and connect a beginning of the ball screw thread to an end of the ball screw thread to allow endless circulation of the balls.

US Pat. No. 10,633,013

STEERING COLUMN FOR A STEER-BY-WIRE STEERING DEVICE

THYSSENKRUPP PRESTA AG, ...

1. An adjustable steering column for a steer-by-wire steering device of a motor vehicle, the adjustable steering column comprising:an actuating unit that is mounted rotatably about a longitudinal axis;
a first casing tube in which a second casing tube is disposed in a rotationally fixed manner with respect to the longitudinal axis and is mounted so as to be movable axially in a telescopic manner; and
a steering spindle that is disposed within and rotatable relative to the second casing tube; and
an actuating drive configured to move the second casing tube axially in and out relative to the first casing tube, the actuating drive comprising a spindle drive with a threaded spindle that
is disposed parallel to the longitudinal axis,
is configured to be driven rotatably by an electric servomotor,
is supported on the first casing tube and extends within the first casing tube, and
is screwed into a spindle nut that is attached in a rotationally fixed manner to the second casing tube.

US Pat. No. 10,597,063

STEERING COLUMN FOR A STEER-BY-WIRE STEERING DEVICE

THYSSENKRUPP PRESTA AG, ...

1. An adjustable steering column for a steer-by-wire steering device of a motor vehicle, the adjustable steering column comprising:an actuating unit that is mounted rotatably about a longitudinal axis;
a first casing tube in which a second casing tube is disposed in a rotationally fixed manner with respect to the longitudinal axis and is mounted so as to be movable axially in a telescopic manner; and
a steering spindle that is disposed within and rotatable relative to the second casing tube; and
an actuating drive configured to move the second casing tube axially in and out relative to the first casing tube, the actuating drive comprising a spindle drive with a threaded spindle that
is disposed parallel to the longitudinal axis,
is configured to be driven rotatably by an electric servomotor,
is supported on the first casing tube and extends within the first casing tube, and
is screwed into a spindle nut that is attached in a rotationally fixed manner to the second casing tube.

US Pat. No. 10,597,066

ENERGY ABSORPTION ELEMENT FOR A STEERING COLUMN OF A MOTOR VEHICLE AND STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. An energy absorption element for a steering column of a motor vehicle, the energy absorption element comprising:a first fastening element;
a second fastening element;
a deformation element that is connected to the first fastening element and to the second fastening element, wherein the deformation element is disposed in a force flux with respect to a force that is configured to be exerted on the first fastening element relative to the second fastening element; and
a predetermined breaking element connected to the first and second fastening elements parallel to the deformation element in the force flux;
wherein the deformation element comprises at least one of a bending element, a tearing tab, or a bending and tearing tab; and
wherein the deformation element comprises:
a basic body that is attached to the first fastening element; and
a bending strip formed on the basic body, wherein the bending strip is connected to the second fastening element.

US Pat. No. 10,328,968

STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle comprising:a supporting unit that is connectable to a chassis of the motor vehicle;
an adjusting unit that is held at the supporting unit and is shiftable relative to the supporting unit in a crash event;
a steering spindle supported by the supporting unit, the steering spindle for introducing a steering motion from a steering wheel into a steering system for transferring the steering motion to a steerable wheel; and
an energy absorption device disposed between the supporting unit and the adjusting unit for absorbing energy over a displacement path, wherein the energy absorption device comprises:
a first sliding rail that includes a base that is fixed to the adjusting unit, and a pair of spaced sidewalls extending away from the base, and
a second sliding rail that includes a base that is fixed to the supporting unit, and a pair of spaced sidewalls extending away from the base, wherein the first and second sliding rails are guided next to one another and are shiftable against one another,
wherein the pair of sidewalls of one of the first and second sliding rails converge in a direction away from the base thereof, and the pair of spaced sidewalls of the other of the first and second sliding rail are nonparallel so as to engage complementarily with the pair of spaced sidewalls of the one of the first and second sliding rails, and
wherein the first and second sliding rails are configured to interact directly with each other to absorb energy by one or both of frictional interaction of the first and second sliding rails and deformation of the first and second sliding rails.

US Pat. No. 10,315,682

STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle comprising:an inner casing tube;
a steering spindle mounted rotatably in the inner casing tube about a longitudinal axis of the steering spindle;
an outer casing unit in which the inner casing tube is held, the outer casing unit being directly or indirectly connectable to a body of the motor vehicle;
a clamping device, wherein in a fixing position the clamping device affixes the outer casing unit relative to the inner casing tube, wherein in a release position the clamping device permits adjustment of the inner casing tube relative to the outer casing unit at least in a longitudinal direction, the clamping device comprising a locking part that is supported in the longitudinal direction on the outer casing unit, wherein in the fixing position the locking part is connected non-displaceably in the longitudinal direction to an engagement part connected to the inner casing tube, wherein in the release position the locking part is released from the engagement part and permits movement of the inner casing tube relative to the outer casing unit in the longitudinal direction; and
an energy absorption device coupling the inner casing tube and the outer casing unit, the energy absorption device including a first energy absorption element and a second energy absorption element that are positioned in a radial direction with respect to the longitudinal axis of the steering spindle on a same side of the inner casing tube, at least one of which is configured to be coupled-in between the inner casing tube and the engagement part, wherein in the fixing position of the clamping device the at least one of the first or second energy absorption elements is coupled-in between the inner casing tube and the engagement part and is plastically deformable during a displacement of the inner casing tube relative to the outer casing unit,
wherein the energy absorption device further comprises an adjustment device with a movable coupling element that couples or decouples the at least one of the first or second energy absorption elements between the inner casing tube and the engagement part when the adjustment device is activated.

US Pat. No. 10,710,627

STEERING WHEEL FOR A MOTOR VEHICLE STEERING SYSTEM AND STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering wheel for a motor vehicle steering system, comprising:a rotatably mounted steering spindle;
a steering wheel hub defining a longitudinal axis and attached coaxially to the rotatably mounted steering spindle;
a steering wheel rim attached to the steering wheel hub and radially spaced apart from the longitudinal axis and extending in a planar manner transversely with respect to the longitudinal axis;
a bearing configured to mount the steering wheel rim on the steering wheel hub such that the steering wheel rim is permitted to incline with respect to the longitudinal axis between an operating position and a stowed position about an inclination axis which lies transversely with respect to the longitudinal axis, wherein the steering wheel rim is inclined at a flatter angle with respect to the longitudinal axis in the stowed position than in the operating position; and
a torque generating device configured to exert a torque on the steering wheel rim about the inclination axis, wherein the torque generating device has an energy store or a force accumulator that is configured to move the steering wheel rim from the stowed position into the operating position.

US Pat. No. 10,661,819

MOTOR-ADJUSTABLE STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A motor-adjustable steering column for a motor vehicle, the motor-adjustable steering column comprising:a casing unit comprising an outer casing tube in which an inner casing tube is received so as to be axially displaceable in telescopic fashion, wherein an intermediate casing tube is disposed coaxially between the outer casing tube and the inner casing tube, wherein the intermediate casing tube is received in the outer casing tube so as to be axially displaceable in telescopic fashion, wherein the inner casing tube is received in the intermediate casing tube so as to be axially displaceable in telescopic fashion;
an adjustment unit that comprises a steering spindle, wherein the steering spindle is mounted in the casing unit so as to be rotatable about a longitudinal axis;
a support unit that is connectable to a vehicle body and holds the adjustment unit; and
an adjustment drive that is connected to the inner casing tube and the outer casing tube, wherein by way of the adjustment drive the inner casing tube is retractable and deployable axially relative to the outer casing tube.

US Pat. No. 10,661,823

FEEDBACK ACTUATOR FOR A STEER-BY-WIRE STEERING MECHANISM

THYSSENKRUPP PRESTA AG, ...

1. A feedback actuator for a steering mechanism for a motor vehicle, the feedback actuator comprising:a steering adjuster that acts on steered wheels and is controlled electronically based on steering commands of a driver of the motor vehicle;
a steering shaft via which feedback from a road is transmitted to a steering wheel; and
a preloaded crank drive and an electric motor configured as torque-generating means,
wherein the preloaded crank drive includes a toggle-lever linkage with a pressure piece that acts on a spring element, and
wherein the toggle-lever linkage includes two lever arms and is symmetrical to a crankshaft of the preloaded crank drive with at least two pin joints,
wherein the pressure piece acting on the spring element is disposed on an end of each lever arm spaced apart from the crankshaft.

US Pat. No. 10,611,395

MOTOR-ADJUSTABLE STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A motor-adjustable steering column for a motor vehicle, comprising:a supporting unit which is configured to connect to a vehicle body;
an actuating unit held by the supporting unit, the actuating unit comprising
a steering spindle;
a casing unit in which the steering spindle is mounted so as to be rotatable about a longitudinal axis, the casing unit comprising:
an outer casing tube, in which an inner casing tube is accommodated so as to be axially displaceable telescopically in the direction of the longitudinal axis, and
an actuating drive, which is connected with the inner casing tube and the outer casing tube and by which the inner casing tube is axially displaceable in and out relative to the outer casing tube, and
a clamp arranged between the outer casing tube and the inner casing tube, the clamp configured to apply a frictional force between the outer casing tube and the inner casing tube with regard to relative displacement, which is adjustable between a release position and a friction position, wherein the frictional force is higher in the friction position than in the release position and wherein the frictional force is lower in the release position and in the friction position than an axial adjusting force which is exertable by the actuating drive between the outer casing tube and the inner casing tube.

US Pat. No. 10,597,068

VEHICLE STEERING SYSTEM WITH STEER-BY-WIRE SYSTEM AND MECHANICAL FALLBACK SYSTEM

THYSSENKRUPP PRESTA AG, ...

1. A motor vehicle steering system with steer-by-wire functionality, the motor vehicle steering system comprising:an upper steering shaft that is mounted in a steering column and is connectable to a steering wheel in a rotationally fixed manner;
a lower steering shaft that is connected to a steering gear for pivoting a steerable wheel;
a manual torque adjuster connected to the upper steering shaft;
an actuating drive disposed on the steering column and connected to the lower steering shaft; and
a coupling, wherein in a closed state the coupling couples the steering wheel and the steering gear in a rotationally fixed manner,
wherein the manual torque adjuster comprises an electric motor with a first output shaft and an upper output wheel that is in engagement with the first output shaft, said first output shaft is connected to the upper steering shaft in a rotationally fixed manner, wherein the actuating drive comprises an electric motor with a second output shaft and a lower output wheel that is in engagement with the second output shaft, said second output shaft is connected to the lower steering shaft in a rotationally fixed manner, and
wherein the coupling comprises an electromagnet with a stator and an armature that is connected to the lower output wheel in a rotationally fixed manner, wherein the armature is preloaded by way of a spring element away from the electromagnet into the closed state of the coupling, wherein the armature is operationally connected to an engagement pin, which in a closed position is in positive engagement with an engagement element that is connected to the upper output wheel in a rotationally fixed manner.

US Pat. No. 10,509,431

REVERSIBLE CURRENT MIRROR AND ITS USE IN BIDIRECTIONAL COMMUNICATION

THYSSENKRUPP PRESTA AG, ...

8. An electromechanical motor vehicle power steering mechanism comprising:an electric motor including at least three phase windings connected to each other in a Y connection and a motor control unit;
an electronic controller electronically connected to the motor control unit of the electric motor, wherein a connection between the electronic controller and the motor control unit of the electric motor comprises a current mirror arrangement for duplex bidirectional communication between the electronic controller and the motor control unit of the electric motor, which current mirror arrangement is reversible and comprises in each of two circuit units connected by a single communication line
a pair of first identical transistors, wherein bases of the pair of first identical transistors are connected, and
a pair of second transistors, wherein the base and a collector of each transistor of the pair of first identical transistors are connected via one of the pair of second transistors,
 wherein the pair of second transistors of each of the two circuit units are connected, wherein parasitic diodes of the pair of second transistors of each of the two circuit units are disposed in opposite directions;
a positive feed line and a negative feed line from a direct current voltage motor vehicle electrical system and electronically coupled to the electronic controller; and
a driver circuit coupled via respective connecting lines to the at least three phase windings of the electric motor, wherein the driver circuit is configured to connect each of the connecting lines via a respective first MOSFET of a first group of MOSFETs to the positive feed line and via a respective second MOSFET of a second group of MOSFETs to the negative feed line, wherein with respect to the direct current voltage motor vehicle electrical system parasitic diodes of the MOSFETs of the first and second groups of MOSFETs are arranged in a reverse direction.

US Pat. No. 10,449,992

STEERING COLUMN HAVING AN ELECTRO-MECHANICAL FIXING DEVICE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle that is adjustable in at least one of a longitudinal direction or a vertical direction of the steering column, the steering column comprising:a casing tube that rotatably supports a steering spindle;
a holding part that is connectable to a body of the motor vehicle and includes two lateral cheeks between which the casing tube is disposed;
an electromechanical fixing device, wherein in a release position of the electromechanical fixing device the casing tube is adjustable relative to the holding part in the at least one of the longitudinal direction or the vertical direction of the steering column, wherein in a fixing position of the electromechanical device a set position of the casing tube is fixed relative to the holding part, the electromechanical fixing device comprising
a clamping bolt that passes through the two lateral cheeks of the holding part and is rotatable about an axis of the clamping bolt by way of an electric motor disposed in a housing as the electromechanical fixing device is opened and closed; and
a stroke-generating mechanism and a support bearing, wherein the two lateral cheeks of the holding part and the casing tube are disposed between the stroke-generating mechanism and the support bearing, wherein the stroke-generating mechanism comprises a first stroke-generating disk and a second stroke-generating disk, with the first stroke-generating disk being connected for conjoint rotation to the clamping bolt and the second stroke-generating disk being guided on the clamping bolt such that the second stroke-generating disk is axially movable in the housing, wherein the housing is mounted in a floating manner on the second stroke-generating disk.

US Pat. No. 10,315,684

STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle, the steering column comprising:a holding device that is connectable to a chassis of the motor vehicle;
a shifting device configured to receive a steering spindle, wherein in a crash event the shifting device is displaceable relative to the holding device along a displacement axis; and
a deformation element connected via respective fastening means to the holding device via a first connection portion and to the shifting device via a second connection portion, the deformation element comprising a deformation portion that is deformed about a deformation axis during displacement of the shifting device relative to the holding device, wherein the deformation axis is oriented substantially parallel to a surface normal of at least one of the first connection portion or the second connection portion in a center of the associated fastening means,
wherein the deformation portion is a first deformation portion and the deformation element comprises a second deformation portion, wherein both the first and second deformation portions are connected to the second connection portion, and
wherein the first connection portion includes a first part and a second part, wherein the first part of the first connection portion is in communication with the first deformation portion and the second part of the first connection portion is in communication with the second deformation portion.

US Pat. No. 10,696,213

STEERING COLUMN FOR A MOTOR VEHICLE AND METHOD FOR PRODUCING A STEERING COLUMN

THYSSENKRUPP PRESTA AG, ...

1. A steering column comprising:a steering shaft that is rotatably supported in a cover unit;
an interface for fitting a steering column switch that is fixed relative to the cover unit; and
a transmission element that is securely connected to the steering shaft by way of securing means so as to conduct torque and rotate with the steering shaft, wherein the transmission element is formed as an integral piece with the securing means, the transmission element comprising actuation means that is movable into operational engagement with the steering column switch fitted to the interface.

US Pat. No. 10,647,353

ELECTROMECHANICAL POWER STEERING SYSTEM, METHOD FOR DETERMINING AN ABSOLUTE ANGLE OF ROTATION, AND METHOD FOR CALIBRATING A MEASURING DEVICE FOR MEASURING AN ABSOLUTE ANGLE OF ROTATION

THYSSENKRUPP PRESTA AG, ...

1. An electromechanical power steering system comprising:a steering shaft that is pivot-mounted around a steering shaft axis of rotation and is movable between a plurality of rotational positions;
an electric motor that includes
a rotor, wherein rotation of the rotor is coupled into the electromechanical power steering system, and
a rotor position sensor for measuring a rotor angle Yt of the rotor;
a steering angle sensor unit for measurement of a first absolute angle of rotation Xt1 of a rotational position of the steering shaft relative to a predefined output rotational position; and
an evaluation unit for combining the rotor angle Yt with the first absolute angle of rotation Xt1 to determine a second absolute angle of rotation Xt of the rotational position of the steering shaft, the evaluation unit comprising
means for storing at least two measurement tuples, wherein each of the at least two measurement tuples comprises an angle value of a rotor angle Yk and an angle value of a related absolute angle of rotation Xk of the rotational position of the steering shaft, and
an adder for determining the second absolute angle of rotation Xt of the rotational position of the steering shaft based on one of the at least two measurement tuples that have been stored by adding or subtracting the rotor angle Yt.

US Pat. No. 10,464,591

AUTOMATICALLY-STOWED STEERING COLUMN ASSEMBLY

THYSSENKRUPP PRESTA AG, ...

1. A steering column assembly for use with a vehicle, comprising:a jacket;
explosive material;
a steering shaft rotatably supported by the jacket, the steering shaft being movable from an extended position to a stowed position upon detonation of the explosive material;
a detonation device in communication with the explosive material for detonating the explosive material when an impact event is sensed or predicted; and
a push plate extending from the steering shaft for receiving a force sufficient to move the steering shaft from the extended position to the stowed position;
wherein the steering shaft has an end for receiving a steering wheel; and
wherein the push plate is positioned between the explosive material and the steering shaft end.

US Pat. No. 10,457,323

HANDS-ON/-OFF DETECTION IN A STEER-BY-WIRE SYSTEM

THYSSENKRUPP PRESTA AG, ...

5. A method for determining a contact state between a driver of a motor vehicle with a steer-by-wire steering system and a steering wheel of the steer-by-wire steering system, wherein the steer-by-wire steering system comprises a steering adjuster that is electronically controlled based on a driver's steering demands, a feedback actuator that transmits feedback effects of a road to the steering wheel, and a control unit that actuates the feedback actuator and the steering adjuster, the method comprising:determining a frequency spectrum of movement signals detected by sensors of the feedback actuator;
analyzing the frequency spectrum by determining damping of amplitudes of predetermined frequency ranges; and
estimating a driver's steering torque with a monitor of the feedback actuator, a model of the feedback actuator, and the movement signals.

US Pat. No. 10,458,542

BRAKE TRANSMISSION SHIFT INTERFACE PIN ASSEMBLY

ThyssenKrupp Presta AG, ...

1. A shifter system assembly for a steering column, the shifter system assembly comprising:a shifter mechanism that receives a shift lever, the shifter mechanism selectively movable between a “Park” position and an out of “Park” position;
a brake transmission shift interface (BTSI) assembly comprising:
a BTSI pin assembly comprising:
a blocking pin;
a solenoid pin that is separate and distinct from the blocking pin; and
a coupler that couples the blocking pin and the solenoid pin wherein the coupler includes a coupler body having an outer diameter greater than corresponding diameters of the blocking pin and the solenoid pin; and
a solenoid coil, wherein the BTSI pin assembly moves between an extended position and a retracted position, wherein (i) in the extended position, the blocking pin inhibits movement of the shifter mechanism out of the “Park” position and (ii) in the retracted position, the blocking pin allows movement of the shifter mechanism to the out of “Park” position.

US Pat. No. 10,449,998

APPARATUS FOR INTRODUCING AN AUXILIARY TORQUE INTO A STEERING SHAFT OF AN ELECTROMECHANICAL POWER STEERING SYSTEM

THYSSENKRUPP PRESTA AG, ...

12. A method for producing an apparatus for introducing at least one of an auxiliary torque or a steering angle into a steering shaft of an electromechanical power steering system, the method comprising:providing a gearwheel for the electromechanical power steering system by molding the gearwheel as a plastic injection-molded part onto the steering shaft in a positive locking manner at least in part by filling ribs or grooves on the steering shaft with plastic of the gearwheel;
providing a sensor for a sensor arrangement;
positioning the sensor at or on the gearwheel in a predefined arrangement position; and
producing a non-releasable connection between the sensor and the gearwheel.

US Pat. No. 10,442,457

STEERING COLUMN HAVING AN ADAPTABLE PIVOT SUPPORT

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle comprising:a casing tube;
a steering spindle that is mounted in the casing tube so as to be rotatable about a longitudinal axis;
a supporting element that is configured as a separate component and is fastened non-releasably on the casing tube; and
a pivot bearing configured to enable height adjustment of the steering column, the pivot bearing defining a pivot axis about which the casing tube pivots to adjust the height of the steering spindle, the pivot bearing being disposed on a region of the steering column that is remote from a driver-side end of the steering spindle, wherein the pivot bearing is either disposed or formed in the supporting element;
wherein the casing tube comprises a fastening structure that extends in a direction of the longitudinal axis, wherein the supporting element is fastenable to the fastening structure, and
wherein the fastening structure comprises longitudinal grooves that face away from each other, wherein the supporting element engages in the longitudinal grooves.

US Pat. No. 10,421,480

DUAL USAGE OF INDUCTOR CORE IN POWER SUPPLIES

THYSSENKRUPP PRESTA AG, ...

1. An electromechanical motor vehicle power steering mechanism comprising:an electric motor that provides a steering assist force; and
a control unit that controls a current to the electric motor, the control unit including two redundant power supply units, wherein each of the two redundant power supply units is connected to a vehicle battery, wherein each of the two redundant power supply units comprises a primary winding and a secondary winding as part of a flyback transformer with a shared magnetic core.

US Pat. No. 10,260,620

METHOD FOR THE RUNNING IN OF A WORM-WHEEL GEAR

THYSSENKRUPP PRESTA AG, ...

1. A method for running in a worm gear of an electromechanical steering system comprising an electric motor, a worm shaft that is operatively connected to the electric motor and includes a first end proximate the electric motor and a second end distal the electric motor, a worm wheel disposed on an output shaft or an input shaft and engaged with the worm shaft, and a gear housing, the method comprising:preparing a preassembled state of the electromechanical steering system wherein the first end of the worm shaft is rotatably mounted in a bearing in the gear housing and the second end of the worm shaft is movable in a radial direction as a free end;
rotatably mounting the second end of the worm shaft in an adjustable pretensioning device that is configured to pretension the worm shaft in a direction of the engaged worm wheel;
adjusting the adjustable pretensioning device by way of a control device so as to generate a defined amount of pretension between the worm wheel engaged with the worm shaft;
rotationally driving the worm shaft as a function of the control device at a defined rotational speed for a determined period of time; and
after rotatably mounting the second end of the worm shaft but before adjusting the adjustable pretensioning device:
measuring a high point of the worm wheel with the pretensioning device by rotating the worm shaft; and
adjusting a toothing engagement of the worm wheel and the worm shaft to the high point of the worm wheel.

US Pat. No. 10,611,398

STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle comprising:an adjustment unit with a steering spindle mounted rotatably about a longitudinal axis of the steering spindle in a casing tube;
a support unit that is connectable to a body of the motor vehicle, the adjustment unit being mountable in the support unit so as to be adjustable in a direction of the longitudinal axis; and
a stop device with a movably mounted stop element that is positionable in a blocking position and in a release position, wherein in the blocking position the stop element limits adjustment travel of the adjustment unit relative to the support unit, wherein in the release position the stop element permits adjustability in the direction of the longitudinal axis beyond the adjustment travel that is limited in the blocking position, wherein the stop device includes an actuation body that has an inert mass, that is actively connected to the stop element, and that is mounted movably relative to the support unit,
wherein in a crash event the mass inertia of the actuation body causes the actuation body to interact with the stop element to move the stop element from the blocking position into the release position.

US Pat. No. 10,633,014

LOCKING DEVICE FOR AN ADJUSTABLE STEERING COLUMN OF A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A locking device for a steering column of a motor vehicle, the locking device comprising:a clamping bolt;
a pressure plate that includes an abutment finger; and
an activating lever attached at an end region of the clamping bolt, wherein the activating lever interacts with the pressure plate such that rotation of the activating lever about an axis of the clamping bolt in a closing direction generates a clamping force directed along the axis of the clamping bolt that clamps the steering column in the locking device, and such that rotation of the activating lever about the axis of the clamping bolt in an opening direction reduces the clamping force so that the steering column is adjustable,
wherein the abutment finger of the pressure plate is spaced radially apart from the clamping bolt and projects in a direction of the axis of the clamping bolt, the abutment finger engaging in a window-like slot having the form of a closed-sided opening formed through the activating lever such that the activating lever is rotatable but such that rotation of the activating lever in the opening direction and in the closing direction is limited by abutment of the abutment finger against opposite abutment surfaces of the window-like slot, at least one of which opposite abutment surfaces includes a separate damping cover which is configured to be removably affixable to the window-like slot.

US Pat. No. 10,633,018

EXTERNAL WATCHDOG WITH INTEGRATED BACKWARD REGENERATION SUPPORT

THYSSENKRUPP PRESTA AG, ...

1. An electric power steering apparatus for assisting steering of a motor vehicle by conferring torque generated by an electric motor to a steering mechanism, the apparatus comprising:a steering controller, which is configured to receive signals representative of at least the torque (TTS) applied to a steering wheel and determine a target motor torque (Td), with a microcontroller unit (MCU) and a watchdog (WD);
a motor controller comprising an inverter which transforms from target motor torque (Td) generated target voltages (U1) into motor currents (I1),
wherein the WD comprises a memory in which state variables of the MCU are stored and a timer which monitors a blackout time of the MCU, wherein the MCU and WD are linked via a communication bus and a reset line.

US Pat. No. 10,759,465

STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle comprising:an inner casing tube in which a steering spindle is mounted rotatably about a longitudinal axis;
an outer casing unit in which the inner casing tube is held, the outer casing unit being connectable to a body of the motor vehicle;
a clamping device, wherein in a fixing position the clamping device secures the outer casing unit relative to the inner casing tube, wherein in a release position the clamping device permits adjustment of the inner casing tube relative to the outer casing unit at least in a longitudinal direction, wherein the clamping device comprises a locking element that is supported in the longitudinal direction on the outer casing unit, wherein in the fixing position the locking element is non-displaceably connected in the longitudinal direction to an engagement part connected to the inner casing tube, wherein in the release position the locking element is released from the engagement part and permits relative movement between the inner casing tube and the outer casing unit in the longitudinal direction;
an energy absorption device that couples the inner casing tube and the outer casing unit, the energy absorption device comprising at least two energy absorption elements and a coupling device, wherein a first energy absorption element of the at least two energy absorption elements is configured to be coupled-in or coupled-out between the inner casing tube and the outer casing unit via the coupling device, wherein in a coupled-in state and in the fixing position of the clamping device the first energy absorption element is plastically deformable in an event of a relative displacement in the longitudinal direction between the inner casing tube and the outer casing unit,
wherein the engagement part comprises
a first driver element that is configured to be brought into operative engagement with the first energy absorption element, and
a connecting part that includes a second driver element that is configured to be brought into operative engagement with a second energy absorption element of the at least two energy absorption elements, wherein the coupling device connects in the longitudinal direction in a releasable manner the connecting part and a remainder of the engagement part.

US Pat. No. 10,759,463

CLAMPING DEVICE OF AN ADJUSTABLE STEERING COLUMN FOR MOTOR VEHICLES

THYSSENKRUPP PRESTA AG, ...

1. A clamping device of an adjustable steering column for a motor vehicle, the clamping device comprising:a carrier configured to be connected to a vehicle chassis of the motor vehicle;
two clamping jaws coupled to the carrier, the two clamping jaws being configured to clamp a steering column tube that has a fixed longitudinal stop disposed thereon, that rotatably supports a steering spindle, and that is at least one of longitudinally or vertically adjustable;
a clamping pin that connects the two clamping jaws;
a clamping retention device disposed on and cooperating with at least one of the two clamping jaws such that,
rotation of the clamping pin about a pin axis in a closure direction causes the clamping retention device to clamp the steering column tube between the two clamping jaws, and
rotation of the clamping pin about the pin axis in an opening direction releases the clamping retention device and the two clamping jaws and permits adjustment of the steering column tube; and
a damping member disposed on the clamping pin and connected to the clamping pin in a frictionally engaging or resilient manner, and having a stop tongue radially protruding away from the clamping pin,
wherein the damping member is configured such that the rotation of the clamping pin in the opening direction moves the stop tongue into abutment with the steering column tube or another part of the adjustable steering column and prevents the rotation of the damping member so that the rotation of the clamping pin in the opening direction occurs counter to a friction force or a resilient force and is damped,
wherein the damping member further has a stop face defined at an end of the stop tongue that is configured to be positioned at least one of,
opposite the fixed longitudinal stop of the steering column tube when the clamping retention device is in an open position, so that a longitudinal displacement of the steering column tube toward a front of the motor vehicle is limited by the stop face stopping against the fixed longitudinal stop, and
above the fixed longitudinal stop of the steering column tube when the clamping retention device is in a closed position, so that during a crash event, when a force acting on the steering column tube overcomes an opposing friction force of the two clamping jaws and the steering column tube is displaced toward the front of the motor vehicle, the fixed longitudinal stop can be longitudinally displaced past the stop face.

US Pat. No. 10,811,815

PRODUCTION OF A SEALED PLUG BY INJECTING ADHESIVE DURING THE JOINING OF PLUG CONTACTS AND PLUG HOUSING

THYSSENKRUPP PRESTA AG, ...

1. A plug for an electrical connector arrangement, comprising a plug contact that is disposed in a socket on a first side and in a plug housing on a second side, wherein the plug housing is cup-shaped and includes a base having a region that projects downward as a connecting part, wherein in the region of the connecting part a cut-out passes through the base via which the plug contact is guidable, wherein the plug contact is disposed in the socket with a recess, wherein the plug contact is connected to the socket in the recess, wherein adhesive adhesively bonds the connecting part of the plug housing only within the recess of the socket such that the plug contact is sealed against dirt and moisture in the region of the cut-out relative to the plug housing, wherein the adhesive is limited to the recess and spaced apart from the base aside from the connecting part.

US Pat. No. 10,793,180

METHOD FOR PRODUCING A LENGTH-ADJUSTABLE STEERING SHAFT, AND LENGTH-ADJUSTABLE STEERING SHAFT

THYSSENKRUPP PRESTA AG, ...

1. A method for producing a length-adjustable steering shaft having a hollow shaft in which a toothed shaft is received so as to be telescopic in an axial direction, the toothed shaft having a toothing which has teeth on the external circumference that extend in the axial direction and which engages in a form-fitting manner in an inner toothing of the hollow shaft, wherein a sliding layer of thermoplastic plastics material is at least in portions attached between the inner toothing and the toothing, the method comprising:forming, in the region of the toothing of the toothed shaft or the inner toothing of the hollow shaft, form-fitting elements configured to provide a form-fitting connection effective in the axial direction, wherein the form-fitting elements are plastically formed in a surface of the toothing or of the inner toothing, wherein the form-fitting elements are rolled into the surface by means of rotating profiled rollers which roll in the axial direction on the surface of the toothing;
bringing the form-fitting elements into engagement with the sliding layer; and
attaching the sliding layer.

US Pat. No. 10,756,619

MOSFET DEAD TIME OPTIMIZATION FOR AN ELECTRIC MOTOR OF A STEERING MECHANISM OF A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A method for dead time optimization of MOSFETs in an inverter of a motor controller of an electric motor in an electromechanical motor vehicle power steering mechanism or a steer-by-wire system of a motor vehicle, wherein the inverter comprises:at least two MOSFETs comprising a high side MOSFET and a low side MOSFET, and wherein the motor controller is configured to control the at least two MOSFETs with gate driver signals with a dead time, the dead time representing a time of the MOSFETs for switching over from one of the at least two MOSFETs to another of the at least two MOSFETs connected in series, the method comprising:
measuring a cross conduction between the high side MOSFET and the low side MOSFET in a current measurement unit,
when a cross conduction occurs, increasing the dead time; otherwise decreasing the dead time,
providing a pulse width modulation (PWM) reference signal, being a PWM gate driver signal of the MOSFETs without dead time; and
detecting a cross conduction with the current measurement unit triggered by the PWM reference signal, wherein the detection takes place after a predefined time interval following change in the PWM reference signal.

US Pat. No. 10,953,913

ELECTROMECHANICAL POWER STEERING SYSTEM HAVING A PIVOTABLE BEARING FOR A HELICAL GEARING

thyssenkrupp Presta AG, ...

1. An electromechanical power steering system, comprising:an electric servo motor including a motor shaft,
a shaft driven by the motor shaft, the shaft meshing with a helical wheel,
a gear mechanism housing in which the shaft is arranged, the shaft supported at one end thereof adjacent the motor in a bearing so as to be able to be rotated about a rotation axis, wherein the bearing is a roller bearing arranged in a carrier that retains the bearing, wherein the motor shaft is coupled to the shaft in a rotationally secure manner by means of a coupling which is configured to compensate for an axial offset,
wherein the shaft is further pivotably supported about a pivot axis which is perpendicular to the rotation axis, and
wherein the pivot axis is arranged in a region of the coupling and extends through the coupling.

US Pat. No. 10,953,454

METHOD FOR PRODUCING A STEERING SHAFT PART AND STEERING SHAFT FOR A MOTOR VEHICLE

thyssenkrupp Presta AG, ...

1. A method for producing a steering spindle part that forms a portion of a steering spindle for a motor vehicle, wherein the steering spindle part is configured as a hollow shaft with a connecting portion at least at one end of the hollow shaft, wherein at least a portion of a length of the connecting portion has an increased wall thickness relative to a portion of the steering spindle part that adjoins the connecting portion, the method comprising:providing a hollow cylindrical tube with an inner surface that is smooth in a circumferential direction and that comprises a circular cross section;
providing a hollow cylindrical sleeve that includes an outer surface that is smooth in a circumferential direction and that comprises a circular cross section;
inserting the hollow cylindrical sleeve into an end portion of the hollow cylindrical tube; and
jointly deforming the end portion of the hollow cylindrical tube and the hollow cylindrical sleeve, wherein a flow of material of the hollow cylindrical tube and the hollow cylindrical sleeve occurs, the flow forming positively locking elements on the hollow cylindrical tube and the hollow cylindrical sleeve, which positively locking elements engage into one another in the circumferential direction to generate positive locking that acts in the circumferential direction, wherein the joint deformation comprises:
introducing a mandrel with a non-circular cross section into the hollow cylindrical sleeve, and
exerting an external deformation pressure on the hollow cylindrical tube with a deformation tool that physically contacts the hollow cylindrical tube to mold the hollow cylindrical tube and the hollow cylindrical sleeve jointly on the mandrel.

US Pat. No. 10,919,563

STEERING COLUMN FOR A MOTOR VEHICLE

thyssenkrupp Presta AG, ...

1. A steering column for a motor vehicle, comprising:a shell part,
a steering shaft including a longitudinal axis and is mounted rotatably in the shell part,
a guide part configured to hold the shell part,
an energy absorption device operatively disposed between the guide part and the shell part, the energy absorption device including:
a bending wire with a first end section and a second end section, the bending wire coupled to the shell part by the first end section and to the guide part by the second end section,
a rail attached by a side wall to the shell part, and
a pin coupled to the guide part,
wherein the second end section of the bending wire has a coupling section that engages behind the pin and is braced at least at a support point on the side wall in response to a crash, wherein the support point is arranged on the side of the pin that is gripped by the coupling section, and
wherein the pin has a first spacing from the side wall, while a second spacing between the pin and the support point measuring in the axial direction is at least 1.1 times the first spacing.

US Pat. No. 10,960,917

STEERING COLUMN FOR A MOTOR VEHICLE

thyssenkrupp Presta AG, ...

1. A steering column for a motor vehicle, comprising:a shell part,
a steering shaft including a longitudinal axis and is mounted rotatably in the shell part,
a guide part configured to hold the shell part,
an energy absorption device operatively disposed between the guide part and the shell part, the energy absorption device including:
a bending wire with a first end section and a second end section, the bending wire coupled to the shell part by the first end section and to the guide part by the second end section,
a rail attached by a side wall to the shell part, and
a pin coupled to the guide part,
wherein the second end section of the bending wire has a coupling section that engages behind the pin and is braced at least at a support point on the side wall in response to a crash, wherein the support point is arranged on the side of the pin that is gripped by the coupling section, and
wherein the pin has a first spacing from the side wall, while a second spacing between the pin and the support point measuring in the axial direction is at least 1.1 times the first spacing.

US Pat. No. 10,953,916

STEER-BY-WIRE STEERING SYSTEM HAVING DIFFERENT DAMPING AS A TURN IS ENTERED AND EXITED

thyssenkrupp Presta AG, ...

1. A steer-by-wire steering system for motor vehicles, comprisinga steering actuator configured to act on steered wheels of the motor vehicle through a toothed-rack steering gear, the steering actuator electronically closed-loop controlled as a function of a steering request,
a feedback actuator, which transmits feedback effects from the road to a steering wheel,
an evaluation unit configured to detect a cornering driving state and generate signals indicative thereof, and
a damping device configured to receive the signals from the evaluation unit and to generate based thereon, as a function of whether a bend is being entered or exited, a damping signal which damps a torque which is present at a steering wheel of the motor vehicle,
wherein the feedback actuator includes an electric motor configured to receive the damping signal and correspondingly actuate,
and the feedback actuator includes a damping element configured to be actuated by the damping device as a function of the damping signal,
wherein the damping element generates friction in order to damp the torque at the steering wheel, which is determined in accordance with the vehicle speed and/or the steering angle speed and/or the steering angle and/or the torque which is present at the steering wheel.

US Pat. No. 10,948,008

STEERING SHAFT AND METHOD FOR PRODUCING A PROFILED HOLLOW SHAFT FOR A TELESCOPIC STEERING SHAFT OF A MOTOR VEHICLE

thyssenkrupp Presta AG, ...

1. A method for producing a telescopic steering shaft of a motor vehicle, the method comprising:providing an outer hollow shaft to be calibrated, an inner hollow shaft, a profile mandrel, and a roller head, the roller head having a plurality of rollers fixed in position thereon, each of the plurality of rollers disposed between a pair of bearing cheeks, wherein each of the plurality of rollers includes a roller edge profile configured to contact and shape the outer hollow shaft;
introducing the profile mandrel into the inner hollow shaft; and
telescoping or oscillating the inner and outer hollow shafts relative to one another as the roller head is calibrating grooves of the outer hollow shaft, wherein all of the plurality of rollers share a common axial position on a longitudinal axis of the inner and outer hollow shafts to calibrate with the roller edge profiles the grooves simultaneously in the outer hollow shaft.

US Pat. No. 10,913,484

BALL SCREW DRIVE OF AN ELECTROMECHANICAL POWER STEERING DEVICE WITH DEFLECTING BODIES FOR A BALL RETURN

THYSSENKRUPP PRESTA AG, ...

1. An electromechanical power steering device for a motor vehicle comprising:a servomotor that drives an axially movable component via a ball nut that is mounted in a bearing such that the ball nut is rotatable about a longitudinal axis in a housing, wherein the ball nut is engaged with a threaded spindle configured on the axially movable component, wherein an inner side of the ball nut includes a ball screw for balls to roll on, wherein an external ball return means of the ball nut connects a start of the ball screw to an end of the ball screw to enable endless circulation of the balls;
a pulley wheel; and
a deflecting body, wherein a return channel of the external ball return means is formed by way of the deflecting body and the pulley wheel;
wherein an outer side of the deflecting body includes at least two outer webs that engage into the pulley wheel such that torque can be transmitted from the pulley wheel to the ball nut.

US Pat. No. 10,676,120

ADJUSTABLE STEERING COLUMN FOR MOTOR VEHICLES WITH ENERGY ABSORBER FOR VEHICLE CRASHES

THYSSENKRUPP PRESTA AG, ...

1. An adjustable motor vehicle steering column comprising:a casing tube;
a guide tube that is movable axially in the casing tube;
a steering spindle that is received by the guide tube and is rotatably mounted about a rotational axis;
an energy absorption element that deforms and absorbs impact energy during a vehicle crash, wherein the energy absorption element is disposed between the guide tube and the casing tube, wherein the energy absorption element includes a slot disposed with a long side parallel to the rotational axis;
a deformation means configured to deform the energy absorption element during the vehicle crash, wherein the deformation means is configured as a peg that is disposed in the slot of the energy absorption element in a starting position; and
an adjustment device configured to move the guide tube axially into an adjustment position and configured to fix the guide tube in the adjustment position,
wherein upon a collision-induced shift of the guide tube caused by the vehicle crash a relative movement occurs between the peg and the slot whereby the slot is widened during the relative movement while absorbing energy.

US Pat. No. 10,988,164

ELECTROMECHANICAL SERVO STEERING SYSTEM HAVING A SPRING-LOADED BEARING ARRANGEMENT

thyssenkrupp Presta AG, ...

1. An electromechanical servo steering system, comprising:an electric servomotor;
a shaft configured to be driven by the servomotor and engaged with a helical gear;
wherein the helical gear defines a worm gear axis;
wherein the shaft is arranged in a transmission housing, the shaft mounted rotatably about an axis of rotation at an end adjacent the servomotor in a bearing arrangement and mounted pivotably in the transmission housing about a pivot axis which lies transverse to the axis of rotation and at an angle of about 20 degrees to about 30 degrees relative to the worm gear axis; and
only two spring elements configured to axially pretension a first bearing element of the bearing arrangement, the first bearing element pivotably movable with the worm shaft about the pivot axis of the bearing arrangement in a spring-elastic manner against a second bearing element of the bearing arrangement, the second bearing element arranged in a stationary manner in the transmission housing, wherein the spring elements are arranged oppositely in the circumferential direction of the bearing arrangement, wherein the pivot axis centrally extends through the two spring elements.

US Pat. No. 10,974,757

ELECTRICALLY ADJUSTABLE STEERING COLUMN FOR A MOTOR VEHICLE

thyssenkrupp Presta AG, ...

1. A steering column for a motor vehicle, comprising:a steering shaft defining a longitudinal axis;
a motorized longitudinal adjustment drive;
a column jacket configured to rotatably mount the steering shaft and having an outer lateral surface;
a guide part that engages around the column jacket and having a bearing surface and a slot, wherein the column jacket is mounted by way of the outer lateral surface in the bearing surface of the guide part such that the column jacket is telescopically displaceable along the longitudinal axis by the motorized longitudinal adjustment drive;
a clamping bolt configured to adjustably set a width of the slot of the guide part to a selectable slot width, such that a play or a predefined prestressing force between the lateral surface and the mounting bearing surface of the guide part is set; and
a motorized height adjustment drive with a pivoting lever which is articulated on the guide part by a lever axle, and wherein the lever axle is formed by the clamping bolt.

US Pat. No. 10,967,898

MOTOR-ADJUSTABLE STEERING COLUMN FOR A MOTOR VEHICLE

thyssenkrupp Presta AG, ...

1. A motor-adjustable steering column for a motor vehicle, comprising:a support unit, which is configured to mount on a vehicle body,
an actuator unit held by the support unit,
a steering spindle rotatably mounted in the actuator unit about a longitudinal axis,
an adjusting drive connected to the support unit and to the actuator unit, and configured such that the actuator unit is adjustable relative to the support unit,
wherein the adjusting drive comprises a drive unit and a threaded spindle engaging in a spindle nut and having a threaded spindle axis, wherein the threaded spindle is driven in rotation or in translation by the drive unit, and
wherein the drive unit is connected to a component of the steering column which is formed by the support unit, the actuator unit or a casing unit holding the actuator unit and connected to the support unit, such that the drive unit is movable in a direction transverse to the threaded spindle axis.

US Pat. No. 10,967,900

COMPOUND ENERGY ABSORPTION SYSTEMS FOR STEERING COLUMNS

thyssenkrupp Presta AG, ...

1. A compound energy absorption system comprising:a first energy absorption mechanism;
a second energy absorption mechanism that is different than the first energy absorption mechanism, the second energy absorption mechanism comprising
an energy absorbing strap that is configured to at least one of bend or tear in a crash event, and
a carrier having catches that extend through slots of the energy absorbing strap; and
means for selectively coupling/decoupling the second energy absorption mechanism.

US Pat. No. 10,926,788

METHOD FOR PRODUCING A TOOTHED RACK FOR A MOTOR VEHICLE

thyssenkrupp Presta AG, ...

1. A method for producing a rack for a steering gear of a motor vehicle, the method comprising:providing a shaft raw material piece having a piece length that is a multiple of a shaft segment length;
generating a coaxial thread on the shaft raw material piece, the coaxial thread being continuous in a longitudinal direction, to produce a threaded semi-finished product;
cutting a threaded shaft segment from the threaded semi-finished product, wherein the threaded shaft segment is bar-shaped and of the shaft segment length;
providing a toothed segment that is bar-shaped;
aligning the toothed segment and the threaded shaft segment on the longitudinal axis; and
joining the threaded shaft segment to the toothed segment at a joint.

US Pat. No. 10,926,793

COIL TEMPERATURE ESTIMATION

thyssenkrupp Presta AG, ...

1. A method for estimation of lost temperature increment (TLostIncrement) after system restart for motor coil temperature estimation in an electric power steering apparatus of a motor vehicle with a power pack comprising an ECU with a temperature sensor and an electric motor, said method comprising the steps of:a) storing a given resistance curve of the motor coils;
b) storing a measured resistance curve of the ECU;
c) measuring a demand voltage vector (Ud,d), a current feedback value Id,fb based on a demand current vector (Id,d) and a battery voltage (Ubat) during a special measurement pulse;
d) determining the power pack resistance (Rpowerpack) based on the parameters measured in step c);
e) measuring the temperature of the ECU (TECU) with the temperature sensor;
f) determining the resistance of the ECU (RECU) on basis of the measured temperature in step e) and the stored resistance curve of the ECU;
g) subtracting the resistance of the ECU (RECU) from the determined power pack resistance (Rpowerpack);
h) determining the temperature of the motor coils (Tmotorcoil) based on the value obtained in step g) and the stored resistance curve of the motor coils; and
i) obtaining the lost temperature increment (TLostIncrement) by subtracting the measured temperature of the ECU (TECU) from the determined temperature of the motor coils (Tmotorcoil).

US Pat. No. 10,919,107

RACK AND METHOD FOR PRODUCING A RACK FOR A STEERING GEAR OF A MOTOR VEHICLE

thyssenkrupp Presta AG, ...

1. A method for producing a rack for a steering gear of a motor vehicle, the method comprising:providing a toothed segment and a shaft segment;
aligning the toothed segment and the shaft segment on a longitudinal axis; and
connecting axial joining faces of the toothed segment and the shaft segment that are directed towards one another by friction welding at a welding joint, wherein for friction welding the method comprises
bringing the axial joining faces into frictional contact by way of a contact pressure force at a level of an initial friction force,
rotating the toothed segment and the shaft segment for friction relative to one another about the longitudinal axis,
performing thermal input friction by way of an input force that is 5 to 12 times the initial friction force,
mutually compressing the axial joining faces by way of a contact pressure force,
moving the toothed segment and the shaft segment toward one another in an axial direction by a predefined joining path, wherein the axial joining faces are mutually compressed until the predefined joining path has been reached by way of a welding force that is 10 to 20 times the initial friction force, and
holding the toothed segment and the shaft segment in position without friction,
wherein a heat-affected zone, as measured from the welding joint, has an axial width of at most 0.5 times a segment diameter of the toothed segment or the shaft segment, the method comprising heating the heat-affected zone to at most 250° C.

US Pat. No. 10,919,560

METHOD FOR PRODUCING A VARIABLE-LENGTH STEERING SHAFT

thyssenkrupp Presta AG, ...

1. A method for producing a variable-length steering shaft that includes a hollow shaft with an internal toothing in which a toothed shaft that engages in a positively locking fashion is disposed so as to be telescopic in an axial direction, with the toothed shaft including a toothing region with teeth disposed on an outer circumference and extending in the axial direction, wherein in the toothing region a shaft core is by way of an injection molding process overmolded with a sliding coating comprising thermoplastic material, the method comprising:positioning the shaft core within a mold cavity of an injection molding tool coaxially with respect to a mold surface that delimits the toothing region;
injecting molten plastic through a gate point in an axial end wall of the mold cavity into the mold cavity between the shaft core and the mold surface of the mold cavity;
removing the toothed shaft from the injection molding tool after the molten plastic has solidified; and
providing the hollow shaft and axially inserting the toothing region into the internal toothing.

US Pat. No. 10,889,317

BALL SCREW DRIVE OF AN ELECTROMECHANICAL POWER STEERING DEVICE WITH DEFLECTING BODIES FOR A BALL RETURN

THYSSENKRUPP PRESTA AG, ...

1. An electromechanical power steering device for a motor vehicle comprising:a servomotor that drives an axially movable component via a ball nut that is mounted in a bearing such that the ball nut is rotatable about a longitudinal axis in a housing, wherein the ball nut is engaged with a threaded spindle configured on the axially movable component, wherein an inner side of the ball nut includes a ball screw for balls to roll on, wherein an external ball return means of the ball nut connects a start of the ball screw to an end of the ball screw to enable endless circulation of the balls;
a pulley wheel; and
a deflecting body, wherein a return channel of the external ball return means is formed by way of the deflecting body and the pulley wheel;
wherein an outer side of the deflecting body includes at least two outer webs that engage into the pulley wheel such that torque can be transmitted from the pulley wheel to the ball nut.

US Pat. No. 10,888,952

RACK AND METHOD FOR PRODUCING A RACK FOR A STEERING GEAR OF A MOTOR VEHICLE

thyssenkrupp Presta AG, ...

1. A method for producing a rack for a steering gear of a motor vehicle, the method comprising:providing a toothed segment and a shaft segment;
aligning the toothed segment and the shaft segment on a longitudinal axis; and
connecting axial joining faces of the toothed segment and the shaft segment that are directed towards one another by friction welding at a welding joint, wherein for friction welding the method comprises
bringing the axial joining faces into frictional contact by way of a contact pressure force at a level of an initial friction force,
rotating the toothed segment and the shaft segment for friction relative to one another about the longitudinal axis,
performing thermal input friction by way of an input force that is 5 to 12 times the initial friction force,
mutually compressing the axial joining faces by way of a contact pressure force,
moving the toothed segment and the shaft segment toward one another in an axial direction by a predefined joining path, wherein the axial joining faces are mutually compressed until the predefined joining path has been reached by way of a welding force that is 10 to 20 times the initial friction force, and
holding the toothed segment and the shaft segment in position without friction,
wherein a heat-affected zone, as measured from the welding joint, has an axial width of at most 0.5 times a segment diameter of the toothed segment or the shaft segment, the method comprising heating the heat-affected zone to at most 250° C.

US Pat. No. 10,829,144

STEERING COLUMN COMPRISING AN ADAPTIVE ENERGY ABSORPTION DEVICE FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. A steering column for a motor vehicle, comprising:a steering shaft;
an inner casing tube that rotatably mounts the steering shaft;
an outer casing unit configured to connect to a vehicle chassis and configured to displaceably receive the casing tube and fix the casing tube in an axial direction; and
an energy absorption device which is operatively disposed between the casing tube and the casing unit and in which part of the energy generated in a crash is absorbed when the casing tube is telescopically displaced in relation to the casing unit,
wherein the energy absorption device comprises:
a first deformation strip and a second deformation strip fastened to the casing tube, and
a first deformation slide and a second deformation slide disposed respectively on the first and second deformation strips, the first and second deformation slides connected to the casing unit and respectively configured to encompass and jam external narrow sides of the first and second deformation strips, and
wherein the first and second deformation slides deform respective first and second deformation strips when the first and second deformation strips are displaced in the axial direction relative to the first and second deformation slides, and
a switching device configured to connect the first deformation slide and the casing unit or couple or decouple the first deformation strip and the second deformation strip.

US Pat. No. 10,822,022

TRANSPORT KEY FOR A STEER-BY-WIRE STEERING SYSTEM FOR MOTOR VEHICLES

THYSSENKRUPP PRESTA AG, ...

1. A steer-by-wire steering system for a motor vehicle comprising:a primary steering level with a steering transmission device, which is arranged to subject wheels to be steered of the motor vehicle with a desired setpoint steering effect;
a secondary steering level with a safety device that provides predefined functions so that if the primary steering level malfunctions, steering the wheels remains possible in an emergency mode until the motor vehicle is turned off; and
an authentication system with a communications interface for communications with the safety device, wherein the authentication system is arranged such that after a successful authorization the secondary steering level is available also after the motor vehicle is turned off following the emergency mode.

US Pat. No. 10,800,452

RIPPLE MINIMIZATION BY PROPER AS/TS MAGNET ARRANGEMENT IN ELECTRIC POWER ASSISTED STEERING APPARATUS

THYSSENKRUPP AG, Essen (...

1. An electric power steering apparatus for assisting steering of a motor vehicle by conferring a support torque generated by an electric motor to a steering mechanism, the electric power steering apparatus comprising:a steering column including an upper steering shaft,
a lower steering shaft, and
a torsion bar linking the upper steering shaft and the lower steering shaft, and
an angle sensor (AS), which comprises:
a gear with a magnet, which is configured to measure the steering shaft angle, and
a torque sensor (TS), which is configured to measure the relative shift angle between the upper steering shaft and the lower steering shaft, and wherein the TS comprises:
a multi-pole ring magnet, and
a magnetic flux conductor,
wherein the TS and AS are arranged in such a way, that the AS magnet influences the TS measurement creating a steering shaft angle depending error signal of the TS,
wherein the steering mechanism is arranged in the steering apparatus in such a way, that a zero crossing of an envelope curve of the steering shaft angle depending error signal is given for a neutral position of the steering apparatus or a range of the steering position in which the steering angle is less than a threshold angle limit.

US Pat. No. 10,787,191

ELECTRICALLY LENGTH-ADJUSTABLE STEERING COLUMN FOR A MOTOR VEHICLE

THYSSENKRUPP PRESTA AG, ...

1. An adjustable steering column for a motor vehicle, the adjustable steering column comprising:an electric motor;
a guide box held on a retaining part fixed to a body of the motor vehicle, wherein the electric motor is fastened to the guide box;
a jacket tube that is mounted in an axially sliding manner in the guide box, the jacket tube being displaceable by way of the electric motor;
a gear rack attached to an outer face of the jacket tube, wherein the electric motor drives a worm gear that protrudes through an opening in the guide box towards the jacket tube and meshes with the gear rack, wherein a length of the worm gear is adapted to forces transmitted in a crash event; and
a rotatable steering shaft that has a shaft part that is axially displaceable along its axis of rotation, the shaft part being rotatably mounted in the jacket tube.

US Pat. No. 10,780,911

STEERING COLUMN FOR A MOTOR VEHICLE AND METHOD FOR PRODUCING A STEERING COLUMN

THYSSENKRUPP PRESTA AG, ...

15. A steering column for a motor vehicle, comprising:a jacket unit with a jacket tube, which comprises at least one clamping section with a slot which extends in the direction of a longitudinal axis,
a clamping collar, with two legs which lie opposite each other transversely to the longitudinal axis and are interconnected via an arcuate section, and between which the clamping section of the jacket tube is at least partially accommodated,
an actuating unit arranged in the jacket tube, with a steering spindle which is rotatably mounted therein around the longitudinal axis,
a clamping device, which in a fixing position clamps the clamping collar on the jacket tube, wherein the clamping section is clamped on the actuating unit and fixes the actuating unit in the direction of the longitudinal axis relative to the jacket tube and in a release position unclamps the clamping collar and frees an adjustment of the actuating unit relative to the jacket tube in the direction of the longitudinal axis,
wherein the clamping device presses the legs toward each other transversely to the longitudinal axis in the fixing position,
wherein driver elements are arranged on the jacket tube in the oppositely disposed edge regions of the slot, and the legs, on their sides facing each other, comprise contact elements which are configured to, in the fixing position, be pressed against the outer sides of the driver elements, facing away from each other, transversely to the longitudinal axis,
wherein in the fixing position the contact elements exert a force on the driver elements that is primarily tangential to a circumference of the clamping section of the jacket tube.

US Pat. No. 10,773,746

ADJUSTABLE STEERING COLUMN ASSEMBLY

THYSSENKRUPP PRESTA AG, ...

1. An adjustable steering column assembly, comprising:a lower jacket having an attachment portion with an end, a passage extending from the attachment portion end at least partially through the attachment portion, the attachment portion end having upper and lower seating faces extending into the passage;
a rake bracket having a base portion with an arm extending therefrom, the arm having an aperture;
a rake guide having upper and lower ends and a hole, the upper end having a configuration complementary to a configuration of the upper seating face, the lower end having a configuration complementary to a configuration of the lower seating face, the rake guide being positioned in the end of the lower jacket attachment portion such that the rake guide upper end mates with the upper seating face, such that the rake guide lower end mates with the lower seating face, and such that the lower jacket attachment portion prevents rotation of the rake guide, wherein the rake guide upper end has a central curved area between rounded edge areas, wherein the rake guide lower end has a central curved area between rounded edge areas, wherein the central curved area of the rake guide lower end includes at least one item selected from the group consisting of the following:
a low friction coating;
a lubricant pocket containing lubricant; and
a first guide rail; and
a fastener coupling the lower jacket, the rake bracket, and the rake guide, wherein the fastener passes through the aperture of the rake bracket, the hole of the rake guide, and past the rake guide in the passage.