US Pat. No. 9,835,215

DISC BRAKE, IN PARTICULAR FOR COMMERCIAL VEHICLES

WABCO Europe BVBA, Bruss...

1. A disc brake for commercial vehicles, comprising:
a brake disc (29),

a brake caliper (10),

an application device (12) arranged in the brake caliper,

at least one brake lining (28) on each side of the brake disc,

an adjustment device for compensating for brake lining/brake disc wear arranged at least partially inside an interior space
of the brake caliper and including an adjustment gear having an adjustment nut (18), which has an internal thread (26), and an adjustment spindle (22) screwed therein with an external thread (24), the adjustment nut (18) being rotatable during normal operation of the brake in relation to the adjustment spindle (22), which is fixed against rotation, and

a first sealing device (44) consisting of elastomeric material with an embedded supporting ring (46) for at least partially sealing off an annular space on the brake disc side, said annular space being delimited on one side
by the inner wall (34) of a through-opening (32) in the brake caliper (10) and on the other side by the axially adjustable adjustment spindle (22), which extends through the through-opening and toward one of the brake linings (28),

wherein the first sealing device (44) is held on the caliper (10) at one of two ends of the first sealing device (44),

wherein the first sealing device (44) bears in a sliding manner against the adjustment spindle (22) at the other one of the two ends of the first sealing device (44),

wherein the first sealing device (44) has a projection (52) on the side facing away from the brake disc, the projection being in preloaded contact with an end of the adjustment nut
(18) which faces the brake disc.

US Pat. No. 9,067,573

METHOD, SYSTEM AND DEVICE FOR CONTROLLING A VEHICLE BRAKE SYSTEM

WABCO Europe BVBA, Bruss...

1. A method for operating an electrically controlled pressurized-fluid brake system of a vehicle on a vehicle track, the vehicle
having wheel brakes, the method comprising the steps of:
receiving, at a brake control unit of the vehicle, an external brake request signal;
using the brake control unit to:
one of determine and receive a radius of curvature of the vehicle track of the vehicle;
determine at least one limit value based on the determined radius of curvature;
compare at least one variable representing a brake pressure to be supplied to the wheel brakes of the vehicle with the at
least one limit value; and

limit the at least one variable based on the comparison; and
supplying brake pressure to the wheel brakes based on the limited at least one variable.

US Pat. No. 9,222,534

CALIPER DISK BRAKE AND WEAR INDICATING DEVICE OF SUCH A BRAKE

WABCO Europe BVBA, Bruss...

1. A caliper disk brake, comprising:
a carrier,
a caliper coupled to said carrier,
at least one brake pad coupled to one of said carrier and said caliper, and
an indicating device coupled to both said carrier and said caliper and being adapted to convert a linear movement of said
at least one brake pad with respect to said carrier into a rotational movement indicating extent of wear of said at least
one brake pad.

US Pat. No. 10,089,882

METHOD FOR CONTROLLING AN OWN VEHICLE TO PARTICIPATE IN A PLATOON

WABCO Europe BVBA, Bruss...

1. A method for controlling an own vehicle to participate in platoon with at least one other vehicle, wherein the own vehicle and the at least one other vehicle each having communication devices configured to wirelessly transmit DSRC-signals over a vehicle-to-vehicle communication link between each other, the method comprising:checking initiation-conditions to determine if the own vehicle is ready for platooning, wherein the checking of the initiation-conditions comprises monitoring on-board messages transmitted over an on-board-communication system of the own vehicle;
identifying at least one other vehicle in signal-transmittal-range to determine if the at least one other vehicle is ready for platooning and the at least one other vehicle is a valid platooning partner, wherein the identification of the at least one other vehicle comprises monitoring DSRC-messages wirelessly transmitted over the vehicle-to-vehicle-communication between the at least one other vehicle and the own vehicle by the DSRC-signal;
requesting to an adaptive cruise control system to hold a following-distance between the own vehicle and the at least one other vehicle to form a platoon if the at least other vehicle is ready for platooning and is a valid platooning partner and if the own vehicle is assigned as a following vehicle, wherein an assignment as a following vehicle is made if a brake-performance-value of the own vehicle transmitted as an on-board message over the on-board-communication system contains a higher stopping distance performance rank as the brake-performance-value of the at least other vehicle transmitted as an DSRC-message over the vehicle-to-vehicle-communication.

US Pat. No. 9,981,646

BRAKE CYLINDER

WABCO Europe BVBA, Bruss...

1. A brake cylinder, comprising:a compression spring;
a pressure chamber having a wall with an opening therein;
a dividing wall disposed between the compression spring and the pressure chamber;
a piston having an inner wall and a bottom, the piston being disposed in the pressure chamber and operable to extend through the opening in the wall of the pressure chamber; and
a nut disposed inside the piston and configured to be held on a release bolt,
wherein the piston includes a guide configured to guide the nut such that the nut cannot be rotated in the piston and such that the nut is moveable along a longitudinal direction of the piston,
wherein a support structure is disposed inside the piston and configured to abut against the nut while the release bolt is screwed into the nut,
wherein the piston comprises a first retaining structure and a second retaining structure, the first retaining structure configured to hold the support structure in an assembly position and the second retaining structure configured to hold the support structure in a drive position,
wherein, from the assembly position, the drive position is located in a direction of the bottom of the piston, and
wherein the support structure is moveable from the assembly position to the drive position by a movement of the nut relative to the piston.

US Pat. No. 9,624,922

PRESSURE MONITORING DEVICE FOR CONTROLLING A COMPRESSOR

WABCO EUROPE BVBA, Bruss...

1. A pressure monitoring device for controlling a compressor having a first signal port and a second signal port, the device
comprising:
an input air connector connectable to an air reservoir and configured to receive an input pressure from the air reservoir;
a first signal air connector configured to output a pneumatic ON-load signal to the first signal port of the compressor to
adjust the compressor to an operation mode;

a second signal air connector configured to output a pneumatic OFF-load signal to the second signal port of the compressor
for adjusting the compressor to a non-operation mode;

a governor body;
a slidable piston disposed in the governor body, the piston being preloadable in a first direction by a spring, the piston
being connectable to the input air connector, the piston being chargeable by the input pressure supplied to the input air
connector to exert a pressure force onto the piston in a second direction opposite to the first direction;

a pressure plunger chargeable by the input pressure for movement in the second direction;
a first connection between the input air connector and the first signal air connector, the first connection being separable;
and

a second connection between the input air connector and the second signal air connector, the second connection being separable;
wherein, when the input pressure exceeds a predefined pressure limit, the pressure plunger is pushed by the input pressure
in the second direction to separate the first connection and further open the second connection for outputting the input pressure
as the pneumatic OFF-load signal out of the second signal air connector; and

wherein, when the input pressure does not exceed the predefined pressure limit, the pressure plunger is not pushed in the
second direction, the first connection is not separated, and the input pressure is outputted as the pneumatic ON-load signal
out of the first signal air connector.

US Pat. No. 9,803,707

DISK BRAKE, IN PARTICULAR FOR UTILITY VEHICLES, AND BRAKE PAD OF A DISK BRAKE OF SAID TYPE

WABCO Europe BVBA, Bruss...

1. A disk brake comprising:
a brake disk (10) defining a brake axis,

a brake caliper (12), which fits over the brake disk,

a brake support (14),

a brake pad (16, 16a and 18) defining a center plane that passes through the brake axis; and

an application device (20), which presses the brake pad against the brake disk when braking, wherein

the brake pad rests in a well of the brake caliper having a U-shape with two legs and a base, and the two legs (28, 30) of the U-shape forming support surfaces configured to contact lateral sides of a brake pad to support the brake pad in a
circumferential direction of the brake disk and the base (32, 34, 36) of the U-shape serves to support the brake pad radially toward the inside,

wherein the two legs of the U-shape are oriented at an angle relative to each other so that the a distance (B1) between the support surfaces forming the two legs of the U-shape is shorter at radially outer ends of the two support surfaces
than a distance (B2) at radially inner ends of the two support surfaces, and the base has two base sections forming further support surfaces,
each of which is rectilinear adjacent one of the two legs and encloses an angle of at least 2° with a tangential plane that
is perpendicular to the center plane of the brake pad,

wherein each of the further supporting surfaces forming the base of the “U” extends in a straight line and encloses an angle
(a) in a range of from 75° to 105° with an adjacent one of the support surfaces of the two legs of the “U”.

US Pat. No. 9,834,261

REAR SPOILER DEVICE FOR A VEHICLE

WABCO Europe BVBA, Bruss...

1. A rear spoiler device (14) for a vehicle (1) having at least one pivoted rear door (6, 8), the rear spoiler device (14) comprising:
at least one air deflector element (15, 25, 35, 45), which is adjustable between a basic position and a drive position for extending the contour and aerodynamic air deflection,
and

at least one support device (18, 28, 38, 48) for supporting the air deflector element (15, 25, 35, 45) in the drive position,

wherein the at least one support device includes a four-bar linkage (18, 28, 38, 48) having at least four joint axes (A, B, C, D) for adjusting the air deflector element (15, 25, 35, 45) between the basic position and the drive position, the four-bar linkage (18, 28, 38, 48) including:

at least one main oscillating link (16, 26, 36, 46) of greater length (L1, L3) and at least one secondary oscillating link (17, 27, 37, 47) of a smaller length (L2, L4),

wherein the main oscillating link (16, 26, 36, 46) and the secondary oscillating link (17, 27, 37, 47) each include a front joint (16a, 17a, 26a, 27a, 36a, 37a, 46a, 47a) for attachment to the rear door (6, 8) and a rear joint (16b, 17b, 26b, 27b, 36b, 37b, 46b, 47b), which serves for pivotally connecting the main oscillating link (16) and the secondary oscillating link (17) respectively to the air deflector element (15, 25, 35, 45),

wherein the rear spoiler device is configured to be mounted exclusively to the at least one rear door (6, 8).

US Pat. No. 9,616,726

LEVELING VALVE FOR DISCHARGING AND SUPPLYING FLUID

WABCO EUROPE BVBA, Bruss...

1. A leveling valve for discharging air from and supplying air to utilization elements, the leveling valve comprising:
a valve disc arrangement configured to direct air between a source of pressurized air, an exhaust port, and the utilization
elements, the valve disc arrangement including:

a first valve disc having a contact surface and at least one flow portion being a recess in the contact surface of the first
valve disc; and

a second valve discs having a contact surface and at least one inlet/outlet flow portion being a recess in the contact surface
of the second valve disc,

wherein the contact surface of the first valve disc contacts the contact surface of the second valve disc,
wherein the first valve disc and the second valve disc are rotatable relative to one another such that the valve disc arrangement
is switchable between multiple switching positions,

wherein the multiple switching positions include a neutral position in which fluid communication between the utilization elements
and both the source of pressurized air and the exhaust port is blocked, a discharge position in which a discharge flow path
is provided allowing fluid communication between the utilization elements and the exhaust port, and a supply position in which
a supply flow path is provided allowing fluid communication between the utilization elements and the source of pressurized
air is provided, and

wherein the first and second valve discs, when rotated relative to one another to switch the valve disc arrangement from the
neutral position to one of the discharge position or the supply position, are configured to provide, respectively, the discharge
flow path and the supply flow path,

wherein rotation of the first and second valve disc relative to one another provides, between the neutral position and one
of full opening of the discharge flow path and full opening of the supply flow path, a flow path cross-section that increases
by varying rates of increase, the varying rates of increase being dependent on an angle of rotation between the valve discs.

US Pat. No. 9,845,118

REAR SPOILER DEVICE FOR A VEHICLE

WABCO Europe BVBA, Bruss...

1. A rear spoiler device (14) for a vehicle (1), wherein the rear spoiler device (14) at least comprises:
an air-guiding element (15, 25, 35, 45) for lengthening a contour of an outer surface (3, 4) of the vehicle (1) in a travel position, a displacement device (18, 28, 38, 48) for displacing the air-guiding element (15, 25, 35, 45) between the travel position and a home position,

wherein a front end (54) of the air-guiding element (15, 25, 35, 45) is arranged so as to bear against the outer surface (3, 4) of the vehicle (1) in the travel position, wherein at least one sealing element (61) for sealingly bearing against the outer surface (3, 4) of the vehicle is arranged at the front end (54) of the air-guiding element (15, 25, 35, 45), and

the displacement device (18, 28, 38, 48) is configured for pressing the sealing element (61) against the outer surface (3, 4) in the travel position

wherein the displacement device (18, 28, 38, 48) is designed as a forced guidance device having only one degree of freedom for displacing the air-guiding element (15, 25, 35, 45) between the home position and the travel position and is a four-link mechanism having four joints or joint axes (A, B, C,
D), at least one main rocker arm (16, 26, 36, 46) having a longer length (L1, L3) and at least one secondary rocker arm (17, 27, 37, 47) having a shorter length (L2, L4) than the main rocker arm (16, 26, 36, 46),
wherein the main rocker arm (16, 26, 36, 46) and the secondary rocker arm (17, 27, 37, 47) each have a front joint (16a, 17a, 26a, 27a, 36a, 37a) for connection to a rear door (6, 8) of the vehicle (1).

US Pat. No. 9,803,642

VACUUM PUMP WITH ECCENTRICALLY DRIVEN VANE (ECCENTRIC PUMP DESIGN)

WABCO EUROPE BVBA, Bruss...

1. A rotating vane vacuum pump, comprising
a housing defining a cavity having an inlet and an outlet;
a drivable vane member for a rotary driven movement inside the cavity;
a rotor inside the cavity; and
a rotatable central shaft extending into the cavity;
wherein the vane member is coupled to the central shaft by an eccentric element on the central shaft and movably arranged
in the rotor, the rotor being rotatable together with said vane member upon rotation of the vane member,

wherein a rotational axis of the central shaft is offset from a rotational axis of the rotor and a point of action of the
vane member is offset from the rotational axis of the central shaft by the eccentric element on the central shaft, and

wherein the rotor encloses radially the eccentric element of the central shaft.

US Pat. No. 9,896,138

DRAG REDUCING DEVICE

WABCO Europe BVBA, Bruss...

1. A drag reducing device (1) for reducing aerodynamic drag at a trailing (12) end of a moving bluff body (10), the device (1) comprising:
a first panel structure (2) including at least a first and a second panel (36, 28) which are at a lateral region movably connected to each other to move together from a collapsed configuration wherein the
panels (36, 28) are positioned close to the bluff body (10) to an extended configuration wherein the panels (36, 28) are rotated away from the trailing (12) end of the bluff body (10),

wherein the first panel (36) is rotatable about a first pivot axis (360) to move the first panel (36) from the collapsed configuration to the extended configuration and wherein the second panel (28) is rotatable about a second pivot axis (280) to move the second panel (28) from the collapsed configuration to the extended configuration, the first pivot axis (360) extending substantially perpendicular to the second pivot axis (280),

wherein at least one of the first or second panel (36,28) comprises at least a first and second panel section (36A, 36B) which are pivotally connected to each other about a section pivot axis (164), wherein the section pivot axis (164) originates from a point of intersection of the first pivot axis (280) and the second pivot axis (360) the section pivot axis (164) extending under an inclined angle away (44) from the first or second pivot axis (280,360), respectively, in a plane defined by the first panel (28) or the second panel (36),

wherein at least one bias element is provided for exerting a spring force to the first panel structure (2) to support a movement of the panels (28,36) from the collapsed configuration to the extended configuration,

wherein the at least one bias element comprises a first elongated bendable spring element (200) which first spring element (200) includes a longitudinal spring rod (210) having a first end (211) and a second end (212), wherein the spring rod (210) extends along a curvature in a pre-tensioned condition in between the first and second panel (28, 36) from a back region B of the drag reducing device to a front region F of the drag reducing device (1), such that the first spring element (210) exerts a spring force to the first or second panel (28, 36).

US Pat. No. 10,422,394

DISC BRAKE

WABCO EUROPE BVBA, Bruss...

1. A disc brake comprising:a brake pad;
a retaining spring; and
a retaining bracket configured to pretension the retaining spring radially inwardly relative to a rotation axis of a brake against the brake pad,
wherein a smallest radial distance (D) of the retaining spring from the brake pad in a region in which the retaining bracket overlaps the retaining spring in a radial direction is greater than a smallest radial distance (d) of the retaining bracket from the brake pad in a region in which the retaining bracket overlaps the brake pad in the radial direction.

US Pat. No. 9,933,028

CALIPER DISC BRAKE OF A VEHICLE, IN PARTICULAR A COMMERCIAL VEHICLE, AND HOLDING-DOWN DEVICE OF SUCH A BRAKE

WABCO Europe BVBA, Bruss...

1. A caliper disc brake of a vehicle, witha brake disc having an axis of rotation (A),
a brake caliper (20), wherein the brake disc is configured to rotate from a disc run-in side of the brake caliper toward a disc run-out side of the brake caliper,
a back plate assembly (22),
a force transmission element, which is guided and supported in a channel of one of the brake caliper and the back plate assembly,
a hold-down spring (30, 32, 34) for holding down the force transmission element and
a hold-down device (36) held and supported on the caliper by a holding device (38, 40), the hold-down device pretensioning the hold-down spring radially against the force transmission element with a first portion (74) and pretensions the hold-down spring against the force transmission device tangentially in the direction of rotation (D) in forwards travel with a second portion (82) radially outward from the first portion with respect to the axis of rotation, wherein the holding device (38, 40) has a centerline (M) lying parallel to the axis of rotation,
wherein the tangential pretensioning is at least partially attributable to the fact that the dimensions (V1, V2) of the hold-down device (36), measured in a tangential direction from the centerline (M), are at least in parts greater on the disc run-out side than on the disc run-in side.

US Pat. No. 9,816,575

CALIPER DISK BRAKE OF A VEHICLE

WABCO EUROPE BVBA, Bruss...

1. A caliper disk brake of a vehicle, comprising:
a brake disk having an axis of rotation;
a brake caliper;
a back plate assembly;
a force transmission element guided and supported in a channel of the brake caliper or the back plate assembly;
a hold-down spring configured to hold down the at least one force transmission elements;
a hold-down yoke configured to pre-stress the hold-down spring radially against the force transmission element and to pre-stress
the hold-down spring against the force transmission element tangentially in a direction of rotation during forward travel
of the vehicle; and

a holding device configured to hold and support the hold-down yoke on the brake caliper, the holding device having a centerline
parallel to the axis of rotation of the brake disk,

wherein a width of the hold-down yoke in the direction of rotation from a first point on a radial plane to an edge of the
hold down yoke on a disk run-out side of the brake disk, the radial plane extending through the centerline and the axis of
rotation of the brake disk, is greater than a width of the hold-down yoke in the direction of rotation from an edge of the
hold down yoke on a disk run-in side of the brake disk to the first point on the radial plane.

US Pat. No. 9,994,205

AXIS OF A LAND VEHICLE, LAND VEHICLE WITH SUCH A SUSPENSION AND DISK BRAKE AND BRAKE SUPPORT OF SUCH LAND VEHICLE

WABCO Europe BVBA, Bruss...

1. An axle of a land vehicle having a disk brake (12), the axle comprisinga first flange surface (32) and a second flange surface (34), for flanging a brake carrier (16) of the disk brake,
a first through-opening (28) which opens into the first flange surface and
a second through-opening (30) which opens into the second flange surface,
wherein the first through-opening (28) in a first region (56) has a smaller first clearance width (W1) than a second clearance width (W2) in a second region (58), wherein the first region is located closer to the first flange surface (32) than the second region.

US Pat. No. 9,695,894

CALIPER DISC BRAKE OF A VEHICLE, IN PARTICULAR A COMMERCIAL VEHICLE, AND HOLDING-DOWN SPRING OF SUCH A BRAKE

WABCO Europe BVBA, Bruss...

1. A caliper disc brake of a vehicle, with
a brake disc having an axis of rotation (A),
a brake caliper (20),

a brake support plate (22),

a force transmission element, which is guided and supported in a well of the brake caliper or of the brake support plate,
a holding-down spring (30, 32, 34) for holding down the force transmission element, and

a holding-down device (36), which

is held and supported on the caliper by a holding device (38, 40),

preloads the holding-down spring radially against the force transmission device, and
preloads the holding-down spring tangentially in the direction of rotation (D) against the force transmission device during
forward travel,

wherein the holding-down device has a center line (M) parallel to the axis of rotation,
wherein the holding-down spring (30, 32, 34) has two identical spring legs (76, 78) and a trapezoidal central region (80),

wherein the holding-down device (36) rests on the holding-down spring (30, 32, 34) in a bead-shaped first region (74) that produces the radial preload and rests on the holding-down spring in a second region (82) that produces the tangential preload, and the distance between a central point (M74) of the first region and a central point (M82) of the second region is smaller in a radial direction than in a tangential direction (H

US Pat. No. 10,713,505

METHOD FOR MONITORING THE VEHICLE SURROUNDINGS OF A VEHICLE COMBINATION AND MONITORING SYSTEM

WABCO EUROPE BVBA, Bruss...

1. A method for monitoring, using a monitoring system having a camera, a vehicle environment of a vehicle combination including a towing vehicle and a trailer, the method comprising:specifying a monitoring area within a detection region of the camera, wherein the monitoring system only monitors the monitoring area for critical objects that may create a probability of collision, wherein the monitoring area is specified and oriented in such a manner that the vehicle environment is at least in regions in the monitoring area and simultaneously the vehicle combination is not in the monitoring area;
determining a variable that characterizes an orientation between the towing vehicle and the trailer;
determining an adjustment variable in dependence upon the variable that characterizes the orientation between the towing vehicle and the trailer;
displacing and therefore dynamically adjusting the monitoring area within the detection region using the adjustment variable; and
specifying whether critical objects are in the monitoring area so as to avoid a collision between a hazardous object that is in the vehicle environment that is being monitored and the associated vehicle combination.

US Pat. No. 10,634,201

DISC BRAKE, MORE PARTICULARLY FOR COMMERCIAL VEHICLES

WABCO EUROPE BVBA, Bruss...

1. A disc brake, comprising:a brake disc,
a brake caliper,
a brake shaft having a rotation axis that lies parallel to a main plane of the brake disc,
a sliding block configured to support the brake shaft on the brake caliper during actuation,
a brake pad lying on a same side as the brake shaft relative to the brake disc,
a pressure piece disposed between the brake shaft and the brake pad,
a first limiting device configured to limit, to a predefined first extent, the displaceability of the pressure piece relative to the brake disc in a direction parallel to the rotation axis of the brake shaft,
a second limiting device configured to limit, to a predefined second extent, the displaceability of the brake shaft relative to the brake disc in a direction parallel to the rotation axis of the brake shaft, the second limiting device comprising a first stop on the pressure piece and a second stop on the brake shaft that cooperates with the first stop in the sense of limiting the displaceability, and
a third limiting device configured to limit, to a predefined third extent, a displaceability of the sliding block relative to the brake disc in at least one direction parallel to the main plane of the brake disc,
wherein on actuation, the brake shaft presses the pressure piece and hence the brake pad against the brake disc,
wherein the third limiting device has a protrusion which, in a mounted state, protrudes into a recess, and
wherein the recess is a blind hole.

US Pat. No. 10,471,942

VALVE UNIT FOR MODULATING PRESSURE IN A COMPRESSED-AIR BRAKE SYSTEM

WABCO Europe BVBA, Bruss...

1. A valve unit for modulating pressure in a compressed-air brake system, the valve unit comprising:an inlet valve (6) and an outlet valve (7), the inlet valve and the outlet valve being configured as diaphragm valves, each of the diaphragm valves having a diaphragm (17, 18),
a brake pressure output (4) configured to be connected to or shut off from a brake pressure input (3) or a vent output (5),
two pilot valves (8, 9) configured as 3/2-way solenoid valves,
a respective control chamber (31, 32) adjacent to the diaphragm (17, 18) of each of the diaphragm valves (6, 7), the control chamber (31, 32) being configured to be pressurized with a control pressure via a control pressure line (33, 34),
wherein the diaphragm valves (6, 7) are arranged with parallel actuation axes (15, 16) and radially adjacent to each other in a valve housing (2), and the diaphragms (17, 18) of the diaphragm valves (6, 7) are each clamped between two housing parts (11, 14; 11?, 14?) via a respective ring bead (22, 23) placed in a housing-side ring groove (20, 21; 20?, 21?) and oriented axially on a pilot valve side,
wherein an annular continuous recess (54, 60, 64, 67, 71, 71?) or a partially interrupted recess is arranged in the ring groove (20, 21; 20?, 21) or immediately adjacent to the ring groove (20, 21; 20?, 21?) of at least one of the diaphragm valves (6, 7) to receive displaced bead material from the diaphragm (17, 18),
wherein at least one of a radially outer side wall (43?) and a radially inner side wall (45?) of the ring groove (20?) is configured with an oversize or undersize and with axial webs (55, 56) evenly distributed circumferentially and protruding radially into the ring groove (20?) to form the partially interrupted recess (57, 58).

US Pat. No. 9,988,105

REAR SPOILER DEVICE FOR A VEHICLE

WABCO Europe BVBA, Bruss...

1. A rear spoiler device for a vehicle having at least one rear door, the rear spoiler device having a basic position and a travel position, the rear spoiler device comprising:a side air guiding element configured for a first adjustment movement between the basic position and the travel position for contour extension and aerodynamic air guiding,
a roof air guiding element configured for a second adjustment movement between the basic position and the travel position for contour extension and aerodynamic air guiding, and
a coupling device for coupling the adjustment movements of the side air guiding element and the roof air guiding element,
wherein the coupling device is disposed between a lower side of the roof air guiding element and an upper end of the side air guiding element, wherein the upper end of the side air guiding element is configured to be adjusted along the lower side of the roof air guiding element during the first and second adjustment movements,
wherein the coupling device has a coupling element disposed on the upper end of the side air guiding element and a coupling receiving member constructed on the lower side of the roof air guiding element, wherein the coupling element is received and guided for the first and second adjustment movements.

US Pat. No. 10,703,164

COMPRESSED AIR SUPPLY SYSTEM

WABCO EUROPE BVBA, Bruss...

1. A compressed-air feed system for operating a pneumatic system, the compressed-air feed system comprising:a compressed-air supply;
a compressed-air connection to the pneumatic system;
a ventilation connection to surroundings;
a pneumatic main line between the compressed-air supply and the compressed-air connection, the pneumatic main line having an air dryer and a regeneration throttle;
a ventilation line between the pneumatic main line and the ventilation connection, the ventilation line having a ventilation valve and a ventilation throttle;
a bypass line between the compressed-air connection and the air dryer, the bypass line having a bypass valve formed as a 2/2 directional valve configured to permit an air flow conducted via the air dryer, and bypassing the regeneration throttle, for filling and ventilating the pneumatic system.

US Pat. No. 10,391,993

COMPRESSED AIR-SUPPLY-SYSTEM FOR A PNEUMATIC SYSTEM, HOUSING FOR THE COMPRESSED AIR-SUPPLY-SYSTEM, METHOD FOR MANUFACTURING A HOUSING, METHOD FOR OPERATING A COMPRESSED AIR SUPPLY, CONTROL-UNIT AND VEHICLE

WABCO Europe BVBA, Bruss...

1. A compressed air supply system for supplying compressed air to an air supply system of a commercial vehicle, said compressed air supply system comprising:a compressed air input port, a compressed air output port and a vent port,
a pneumatic main pipe arranged between the compressed air input port and the compressed air output port,
a pneumatic vent pipe connected to the pneumatic main pipe between the compressed air output port and the vent port,
a purge valve arranged in the pneumatic vent pipe for venting the compressed air supply system, said purge valve comprising a first and a second purge valve port and a control port,
a regeneration valve for controlling a regeneration flow of compressed air through an air dryer arranged in the main pipe, said regeneration valve comprising at least a first and a second regeneration valve port, the first regeneration valve port being connected to the pneumatic main pipe, the second regeneration valve port being connected to the purge valve control port,
a governor valve for generating a pressure signal, said governor valve comprising at least a first and a second governor valve port, the first governor valve port being connected to the pneumatic main pipe, the second governor valve port being connected to the purge valve control port, and
a first and a second pneumatic control pipe, wherein the first pneumatic control pipe connects the second regeneration valve port of the regeneration valve to the control port of the purge valve and wherein the second pneumatic control pipe connects the second governor valve port of the governor valve with the control port of the purge valve, wherein either the first or the second pneumatic control pipe is open by selectively connecting the pneumatic main pipe to the purge valve control port through the regeneration valve or the governor valve for actuating the purge valve.

US Pat. No. 10,688,842

LEVELING VALVE FOR DISCHARGING AND SUPPLYING FLUID

WABCO Europe BVBA, Bruss...

1. A leveling valve (101) for discharging and supplying air from and to a plurality of utilization elements (205a, b), the leveling valve (101) comprising:a valve arrangement (103) for directing air between a source (207) of pressurized air, an exhaust port (3) and the utilization elements;
a supply port (1) connecting the valve arrangement (103) to the source (207) of pressurized air; and
a check valve (5) mounted upstream of the valve arrangement (103), the check valve (5) being configured to allow fluid flow from the supply port (1) towards the valve arrangement (103) and to block fluid flow from the valve arrangement (103) through the supply port (1), the check valve comprising a base body (15) having
an inlet side (4),
an outlet side (6),
an outer periphery (20),
a flow path (8) extending through the base body (15) from the inlet side (4) to the outlet side (6); and
a lip seal (7) with a sealing lip (17) configured to abut against a wall (13) of the supply port (1) when mounted, to flex away from the wall (13) in response to air flowing from the inlet side (4) towards the sealing lip (17), and to sealingly lie against the wall (13) in response to air flowing from the outlet side (6) towards the sealing lip (17).

US Pat. No. 10,683,864

TWIN VANE ROTARY VACUUM PUMP

WABCO EUROPE BVBA, Bruss...

1. A vacuum pump, comprising:a housing having an inlet and an outlet;
a chamber within the housing;
a rotor configured to undergo rotational movement about a rotational axis within the chamber, and
at least a first vane and a second vane, the first vane and the second vane being received, respectively, in a first slot and a second slot, the first slot and the second slot being formed in the rotor,
wherein the first slot and the second slot are substantially parallel to each other,
wherein a length of the first vane is greater than a length of the first slot,
wherein a length of the second vane is greater than a length of the second slot, and
wherein the first slot and the second slot are formed as secants and are symmetrical to each other about the rotational axis of the rotor.

US Pat. No. 10,670,097

DISC BRAKE WITH ADJUSTMENT MECHANISM HAVING A THREAD DEVICE

WABCO EUROPE BVBA, Bruss...

1. A disk brake, comprising:a brake disk having a rotation axis,
a brake caliper,
at least one application device lying within the brake caliper on one side of the brake disk,
an axially movable device configured to move a brake pad axially toward the brake disk by way of an actuating spindle when the brake is actuated, wherein the actuating spindle has an external thread configured to engage a threaded bore in the movable device, and
an adjustment mechanism having a first thread device, the adjustment mechanism being configured to rotate, in each of an adjusting direction and a release direction opposite the adjusting direction, about a rotation axis parallel to the rotation axis of the brake disk,
wherein the adjustment mechanism is further configured to, during rotation in the adjusting direction, rotate the actuating spindle in the adjusting direction thereby axially moving the actuating spindle relative to the movable device by forming, with the actuating spindle, a rotational coupling acting in the adjusting direction,
wherein the adjustment mechanism is even further configured to, during rotation in the release direction, rotate relative to the actuating spindle, and
wherein, during rotation in the release direction, the first thread device of the adjustment mechanism is configured to mesh with the external thread of the actuating spindle that is configured to engage the threaded bore in the movable device,
wherein the first thread device of the adjustment mechanism is a wrap spring having a same pitch as the external thread of the actuating spindle,
wherein the wrap spring is configured to rest in a spiral groove of a guide sleeve of the adjustment mechanism, and
wherein the adjustment mechanism includes a grooved ring mounted rotatably on the guide sleeve.

US Pat. No. 10,502,273

PNEUMATICALLY OR ELECTROMECHANICALLY ACTUATED DISK BRAKE FOR UTILITY VEHICLES

WABCO EUROPE BVBA, Bruss...

1. A pneumatically or electromechanically actuated disc brake for utility vehicles, comprising:a brake disc having a preferred direction of rotation in forward travel;
a brake carrier extending around the brake disc;
a brake caliper extending around the brake disc;
a fastening-side brake pad comprising a fastening-side back plate and a fastening-side friction material, wherein the fastening-side brake pad is configured to be supported, during braking, in a circumferential direction against a fastening-side region of the brake carrier on a brake disc exit side, and wherein a fastening-side line of gravity passes through a center of gravity of the friction material of the fastening-side brake pad in an axial direction of the brake;
a rim-side brake pad comprising a rim-side back plate and a rim-side friction material, wherein the rim-side brake pad is configured to be supported, during braking, in the circumferential direction against a rim-side region of the brake carrier on the brake disc exit side, and wherein a rim-side line of gravity passes through a center of gravity of the friction material of the rim-side brake pad in the axial direction of the brake;
a first support device formed on the rim-side region of the brake carrier and configured to support the rim-side brake pad on the brake disc exit side;
a second support device formed on an fastening-side region of the brake carrier and configured to support the fastening-side brake pad on the disc exit side during braking; and
an application device having a pressure-exerting device on one side of the brake disc, wherein the application device is configured to press the fastening-side brake pad against the brake disc during braking, and wherein the pressure-exerting device has a central axis lying in the axial direction of the brake,
wherein the fastening-side line of gravity, in the rest state of the brake, is arranged with a predetermined first transverse offset with respect to the central axis, the transverse direction being defined to extend perpendicular to the axial direction and parallel to the preferred direction of rotation,
wherein the rim-side line of gravity is arranged either with a predetermined second transverse offset with respect to the central axis, the second offset being unequal to the first offset, or with a third transverse offset with respect to the central axis,
wherein the fastening-side back plate is transversely offset with respect to the rim-side back plate, and
wherein the first support device is offset by a fourth offset with respect to the second support device.

US Pat. No. 10,501,062

ELECTRONICALLY CONTROLLABLE PNEUMATIC BRAKE SYSTEM IN A UTILITY VEHICLE AND METHOD FOR ELECTRONICALLY CONTROLLING A PNEUMATIC BRAKE SYSTEM IN A UTILITY VEHICLE

WABCO EUROPE BVBA, Bruss...

1. An electronically controllable pneumatic brake system in a vehicle, the brake system comprising:wheel brakes for braking respective wheels of the vehicle, wherein wheel brakes of at least one vehicle axle include spring-loaded cylinders for implementing a pneumatic parking brake in a parking brake braking circuit of the vehicle,
an electronically controllable monostable bypass valve, wherein the monostable bypass valve is disposed between a manually operated parking brake valve and the spring-loaded cylinders such that the monostable bypass valve:
controls, in a first switching position, a bypass control pressure based on an actuation pressure produced by the parking brake valve to implement a manually specified parking brake force, wherein a maximum actuation pressure corresponds to a reservoir pressure of a reservoir pressure medium in a parking brake pressure medium reservoir supplying the parking brake braking circuit, and
controls, in a second switching position, a bypass control pressure depending on a venting pressure prevailing in a bypass vent connection to implement an electrically specified parking brake force,
wherein a parking brake braking pressure controlled at the spring-loaded cylinder can be set depending on the respective bypass control pressure, and
wherein the monostable bypass valve automatically changes over to the first switching position without electrical actuation.

US Pat. No. 10,480,465

VACUUM PUMP AND SYSTEM OF A VACUUM PUMP AND AN ENGINE

WABCO EUROPE BVBA, Bruss...

1. A vacuum pump suitable for mounting to an engine, comprising:a casing;
a cavity in the casing, the cavity having an inlet and an outlet;
a vane configured to be rotated inside the cavity so as to draw fluid into the cavity through the inlet and to expel fluid out of the cavity through the outlet thereby causing a reduction in pressure at the inlet;
an oil supply conduit configured to supply oil from a reservoir to the cavity; and
a check valve arranged in the oil supply conduit between the reservoir and the cavity, the check valve having a check valve body,
wherein the check valve is configured to meter a flow of the oil from the reservoir to the cavity, and
wherein the check valve body is configured to be located, when a pressure in the oil supply conduit on a reservoir side of the check valve exceeds, by at least a first threshold, a pressure in the oil supply conduit on a cavity side of the check valve, in a closed position thereby preventing the flow of oil from the reservoir to the cavity.

US Pat. No. 10,280,996

DISC BRAKE

WABCO EUROPE BVBA, Bruss...

1. A disc brake comprising:a brake caliper,
a brake pad,
a retaining spring holding the brake pad in a radial direction relative to a brake axis,
a retaining bracket pretensioning the retaining spring in the radial direction,
a first holder on the brake caliper at least partially disposed on a radial inside of the retaining bracket and configured to limit displacement of the retaining bracket in a radial inside direction, and
a second holder on the brake caliper at least partially disposed on a radial inside of the retaining bracket and configured to limit displacement of the retaining bracket in the radial inside direction but not to limit displacement of the retaining bracket in an axial direction,
wherein at least one of the first holder or the second holder has a stop configured to limit displacement of the retaining bracket in a first axial direction,
wherein the retaining bracket includes:
a first protrusion configured to hit against the retaining spring so as to limit displacement of the retaining bracket in a second axial direction opposite the first axial direction, and/or
a second protrusion configured to hit against the brake caliper so as to limit displacement of the retaining bracket in the second axial direction but not towards the radial outside.

US Pat. No. 10,107,345

ADJUSTING UNIT FOR AN AUTOMATIC SLACK ADJUSTER

WABCO Europe BVBA, Bruss...

1. An adjusting unit (1) for an automatic slack adjuster (100) of a brake (200), in particular of a commercial vehicle drum brake, the adjusting unit comprising:a housing (19),
a worm shaft (2), which is mounted in the housing (19) so as to be movable between two end positions along an axial travel (A),
a control pinion (9) arranged on the worm shaft,
only one axial spring (11),
a worm (7) arranged on the worm shaft, and
a freewheel (13), which is designed for power transmission between the control pinion (9) and the worm (7) in a first direction of rotation and for slip between the control pinion (9) and the worm (7) in an opposite, second direction of rotation,
wherein the worm shaft (2) has a first stop surface (3) and a second stop surface (5), the first stop surface (3) being spaced apart from a corresponding first stop (25) at one of the two end positions of the housing (19), the first stop surface and the second stop surface each configured to be brought into contact with the corresponding first stop (25) or a corresponding second stop (21) of the housing (19) when the worm shaft (2) is moved to one of the two end positions,
wherein the worm shaft (2) has a sliding bearing section (6) inserted into a guide recess (23) of the housing (19), the sliding bearing section (6) extending from the second stop surface (5) to the corresponding second stop (21) and being in direct contact with the guide recess (23),
wherein the axial spring (11) is operatively connected to the housing (19) and the worm shaft (2) and is designed to preload the worm shaft (2) in the direction of the corresponding second stop (21).

US Pat. No. 10,699,835

BISTABLE SOLENOID VALVE DEVICE AND METHOD FOR DETERMINING AN ARMATURE POSITION OF A BISTABLE SOLENOID VALVE

WABCO EUROPE BVBA, Bruss...

1. A bistable solenoid valve device for a fluid system, the bistable solenoid valve device comprising:a bistable solenoid valve having:
a permanent magnet yoke with a first pole base and a second pole base for the formation of a first ferromagnetic circuit and a second ferromagnetic circuit,
an armature consisting of a magnetically conductive material, configured to be displaced between a first armature position for contact against the first core to form an air gap with the second core and a second armature position for contact against the second core to form an air gap with the first core,
a first armature coil for supplying current for a displacement into the first armature position,
a second armature coil for supplying current for a displacement into the second armature position, and
a final stage for supplying current to in each case one of the armature coils for a displacement of the armature; and
a detection device configured to:
evaluate and/or measure a first inductance of the first armature coil, and evaluate and/or measure a second inductance of the second armature coil without displacement of the armature,
to compare the inductances of the first armature coil and the inductance of the second armature coil, and
to output a state signal that indicates the armature position.

US Pat. No. 10,696,120

LEVELING VALVE FOR DISCHARGING AND SUPPLYING FLUID

WABCO Europe BVBA, Bruss...

1. A leveling valve (101) for discharging and supplying air from and to a plurality of utilization elements (205a, b), the leveling valve comprising:a valve arrangement (103) for directing air between a source (207) of pressurized air, an exhaust port (3) and the utilization elements,
a supply port (1) in fluid communication with the valve arrangement (103) and the source (207) of pressurized air, and
an exhaust port (3) having an exhaust air channel (a) for discharging exhaust air,
wherein the exhaust port (3) includes at least one air-permeable damping element (b), which is at least partly positioned within the exhaust air channel (a) upstream of an air flap (158).

US Pat. No. 10,670,098

MONITORING DEVICE FOR A DISK BRAKE OF A MOTOR VEHICLE

WABCO EUROPE BVBA, Bruss...

1. A disk brake for a motor vehicle, comprising:a brake disk;
a brake caliper encompassing the brake disk;
a brake pad configured to be repositionable, in a manner depending on an actuation of a brake actuator, relative to the brake caliper for the purpose of bringing about a deceleration of the brake disk, wherein the brake pad is fastened to a pressure spindle of an adjusting device for the purpose of additional repositioning of the brake pad in a manner depending on a wear of the brake pad; and
a monitoring device, integrated within the adjusting device, configured to register a relative position between the pressure spindle and the brake caliper, the monitoring device including:
a sensor assembly configured to be attached to a brake caliper of the disk brake, and
a measuring assembly configured to be moved relative to the sensor assembly,
wherein the measuring assembly of the monitoring device is preloaded against the pressure spindle for the purpose of transmitting a movement of the pressure spindle to the measuring assembly,
wherein the pressure spindle is constructed in the form of a hollow cylinder,
wherein the measuring assembly is preloaded against a substantially annular front side of the pressure spindle, wherein the sensor assembly protrudes, in a manner depending on the relative position between the brake caliper and the pressure spindle, into an interior space in the hollow cylindrical pressure spindle, and
wherein the pressure spindle has been rotatably screwed into a pressure piece, and in the course of a rotation against the pressure piece the pressure spindle is repositionable by an adjustment distance (N) from a starting position into a wear position for the purpose of compensating for the wear of the brake pad.

US Pat. No. 10,576,949

TRACTOR PROTECTION VALVE ASSEMBLY AND ELECTRO-PNEUMATIC BRAKE SYSTEM OF A TRACTOR VEHICLE

WABCO Europe BVBA, Bruss...

1. An electro-pneumatic tractor protection valve assembly (8) to be used in a tractor vehicle (1), for supplying a trailing vehicle (3) with a trailer supply pressure and with a trailer brake control pressure for enabling trailer brake processes of a trailer pneumatic brake system (4) of the trailing vehicle (3), the tractor protection valve assembly (8) comprising:a trailer supply input (84) for receiving at least one supply pressure,
a trailer service output (87) for delivering the trailer supply pressure to a trailer supply line (120),
a first supply input (81) for receiving a primary driver brake pressure and a second supply input (82) for receiving a secondary driver brake pressure, both the primary driver brake pressure and the secondary driver brake pressure to be supplied from a dual brake valve (14) actuated by a driver brake pedal (10),
a vent (86) for venting at least one internal conduit (33) of the electro-pneumatic tractor protection valve assembly (8),
a first electrically controlled pneumatic valve (92, 92) to receive a first electric control signal (S1) to start a trailer assistance brake process without actuation of the driver brake pedal (10), and
a trailer control output (85) for delivering the trailer brake control pressure to a connected trailer control line (121) for starting a trailer brake process, the trailer control output (85) delivering the trailer brake control pressure in case of at least one of the following situations: the primary brake control pressure being supplied to the first supply input (81), the secondary brake control pressure being supplied to the second supply input (82), or the first electric control signal (S1) signaling an assistance brake process,
wherein the electro-pneumatic tractor protection valve assembly (8) further comprises one single casing (8a), in which the first supply input (81), the second supply input (82), the trailer supply input (84), the trailer control output (85), the vent opening (86) and the trailer service output (87) are accommodated,
wherein the first electrically controlled pneumatic solenoid valve (92) is a 2/2-solenoid valve configured for receiving the first electric control signal (S1),
further comprising a second electrically controlled pneumatic solenoid valve (93) configured for receiving a second electric control signal (S2),
wherein the first and second electrically controlled pneumatic solenoid valves (92, 93) are configured for enabling phases of pressure increase, pressure holding and pressure release at the trailer control output (85).

US Pat. No. 10,221,908

DISC BRAKE WITH ADJUSTMENT MECHANISM HAVING A THREAD DEVICE

WABCO EUROPE BVBA, Bruss...

1. A disk brake, comprising:a brake disk,
a brake caliper,
at least one application device lying within the brake caliper on one side of the brake disk,
an axially movable device configured to move a brake pad axially toward the brake disk by way of at least one actuating spindle when the brake is actuated, wherein the actuating spindle can be rotated, has an external thread, and is configured to be screwed into a threaded bore in the movable device, and
an adjustment mechanism configured to be rotated about a rotation axis lying parallel to a rotation axis of the brake disk and which, in the case of rotation in a first direction of rotation bringing about adjustment, is configured to rotate the actuating spindle because of a rotational coupling acting in the direction of rotation,
wherein the adjustment mechanism comprises a thread device which, at least in a rotation in a second direction of rotation opposite the first direction of rotation, is configured to mesh with the external thread of the actuating spindle and to screw the adjustment mechanism in relation to the actuating spindle.

US Pat. No. 10,886,645

CONTACT ELEMENT FOR ELECTRICAL PLUG-IN CONNECTIONS

WABCO EUROPE BVBA, Bruss...

1. A contact element for electrical connection of an electrical plug-in connector of an electrical or electronic system component to an electronic printed board assembly, the contact element comprising:two arms including a first arm and a second arm, wherein the two arms each have a circular free end, wherein the two arms are connected to one another via a contact portion, wherein, at one end, the contact element has an extension piece for the electrical connection to the printed board assembly, wherein the contact element has a cutout over its entire length, wherein the cutout is narrowed in the contact portion by contact projections projecting into the cutout;
wherein a clamping region for a force-fitting and electrically conductive clamping of the plug-in connector of the electrical or electronic system component is formed; and
wherein the two arms are angled relative to the contact portion in such a way that the two arms extend in two different planes.

US Pat. No. 10,641,257

RECIPROCATING-PISTON MACHINE, COMPRESSED-AIR SUPPLY INSTALLATION, COMPRESSED-AIR SUPPLY SYSTEM, AND VEHICLE HAVING A COMPRESSED-AIR SUPPLY INSTALLATION

WABCO EUROPE BVBA, Bruss...

1. A reciprocating-piston machine comprising:a first cylinder and a first piston assigned to the first cylinder and a second piston assigned to the first cylinder or a second cylinder, wherein the first piston and the second piston are configured, during operation, to be deflected in a respective cylinder displacement chamber;
a crankshaft configured, during operation, to be driven, the crankshaft having an eccentric crankshaft journal and a drive shaft coupling configured for coupling a drive shaft of a drive motor for driving the crankshaft;
a first connecting rod configured to deflect the first piston and configured to be moved by the eccentric crankshaft journal;
a second connecting rod configured to deflect the second piston configured to be moved by a bearing pin about which the first connecting rod and the second connecting rod are rotationally movable; and
at least one of:
a first elastomer element arranged between the bearing pin and the first connecting rod, the first elastomer element mounting the bearing pin and the first connecting rod elastically with respect to one another, and
a second elastomer element arranged between the bearing pin and the second connecting rod, the second elastomer element mounting the bearing pin and the second connecting rod elastically with respect to one another.

US Pat. No. 10,197,118

BRAKE CYLINDER

WABCO Europe BVBA, Bruss...

1. A brake cylinder for an air-operated brake, comprising a housing including a front cover (11) having a generally cylindrical lateral surface (16) and a base wall (18) adjoining the lateral surface (16), the base wall (18) having an elevated portion (19) extending diametrically across the base wall with a central bore or middle opening (23) for a cylinder plunger extending in an axial direction and two outer openings (21, 22) on opposite sides of the central bore or middle opening (23), the two outer openings (21, 22) extending parallel to the axial direction, wherein no more than one rib (46) is formed on the front cover (11), the rib (46) extending on the base wall (18) in addition to the elevated portion (19), wherein the elevated portion and the rib are hollow structures that are open on one side of the base wall.

US Pat. No. 10,837,283

VACUUM PUMP WITH ECCENTRICALLY DRIVEN VANE (ECCENTRIC PUMP DESIGN WITH CRANK PIN)

WABCO EUROPE BVBA, Bruss...

1. A rotating vane vacuum pump comprising:a housing defining a cavity having an inlet and an outlet;
a vane member inside the cavity;
a drivable rotor inside the cavity, the drivable rotor having a guiding recess; and
a rotatable central shaft extending through the cavity, the rotatable central shaft having a crank pin;
wherein the vane member is slidably arranged in the rotor,
wherein the vane member and the rotor are rotationally coupled together and configured to undergo a 360° rotation,
wherein, over a first predetermined angular range of the 360° rotation, the crank pin is configured to engage the guiding recess in order to directly drive the rotor through the first predetermined angular range, and
wherein, over a second predetermined angular range of the 360° rotation, the crank pin is configured to be disengaged from the guiding recess such that the crank pin does not directly drive the rotor through the second predetermined angular range.

US Pat. No. 10,973,061

METHOD FOR ESTABLISHING A WIRELESS VEHICLE NETWORK

WABCO Europe BVBA, Bruss...

1. A method for establishing a wireless network for a vehicle, the vehicle comprising a tractor unit and a trailer, the tractor unit comprising at least one first station and a first control unit with the first control unit assigned to and in communication with the first station, and the trailer comprising a second station and a second control unit with the second control unit assigned to and in communication with the second station, the method comprising:supplying electrical energy to the second control unit;
interconnecting the first control unit and the second control unit via a physical interface between the tractor unit and the trailer;
in response to the electrical energy being received at the second control unit, generating a defined message by the second control unit for transmission via the physical interface;
receiving the defined message by the first control unit via the physical interface;
transmitting a wireless signal containing information required to establish the wireless network via the first station only after the defined message is received by the first control unit and is present in the first station; and
establishing the wireless network between the first station and the second station for connection to an external device,
wherein the second control unit is a brake control unit, and wherein the first station transmits the information required to establish the wireless network only when a CAN message with the designation EBC1 is present in the first station and a first bit of the “Trailer ABS Status” contained in the message has the value “0”.

US Pat. No. 10,967,696

ELECTRONIC LEVEL CONTROL DEVICE FOR AIR-SUSPENDED VEHICLES, METHOD AND CONTROL DEVICE FOR ELECTRONIC LEVEL CONTROL

Wabco Europe BVBA, Bruss...

1. An electronic level control device for a vehicle having an air suspension system, said vehicle comprising a chassis having at least one axle, at least two wheels arranged on the at least one axle, and an air spring arranged between the at least one axle and the chassis for at least one of the at least two wheels, the electronic level control device comprising:an electronic control unit configured to initiate a level controlling procedure by actuating a solenoid valve of the air spring to supply compressed air to the air spring from a compressed air storage device and/or discharge compressed air from the air spring into the atmosphere so as to perform the level controlling procedure; and
at least one capacitive level sensor comprising a variable capacitance, wherein said capacitive level sensor is configured to determine a distance between the chassis and the at least one axle based on the variable capacitance, the at least one capacitive level sensor further comprising a capacitor formed by the chassis and the at least one axle, wherein the variable capacitance varies depending upon the distance between the chassis and the at least one axle; andthe electronic control unit including an electric circuit comprising a DC voltage source, a charging resistor, and a time-voltage measuring unit,wherein the electric circuit is configured to: generate a square wave voltage: determine a time period that elapses between applying the square wave voltage and achieving a predetermined charging voltage value at the capacitor, and calculate a current capacitance of the capacitor by the formula: C2=(R1/?t?1/C1)?1 wherein C2 is the current capacitance of the capacitor, R1 is a previously known electrical resistance of the charging resistor, ?t is the determined time period, and C1 is a constant capacitance of other capacitive elements connected in series to the capacitor, and wherein the electronic control unit is configured to generate a control signal for actuating the solenoid valve based on a value of the variable capacitance and wherein variable capacitance is the calculated current capacitance of the capacitor (C2).

US Pat. No. 10,967,843

CONTROL VALVE, ELECTRONICALLY CONTROLLABLE BRAKE SYSTEM AND METHOD FOR CONTROLLING THE ELECTRONICALLY CONTROLLABLE BRAKE SYSTEM

WABCO Europe BVBA, Bruss...

1. A control valve (12) for applying a spring-loaded brake pressure (p3b) to spring-loaded parts (3b) of a rear-axle wheel brake (3), the control valve comprising a first control input and a second control input, a first control input and a second control input and a first control chamber, a second control chamber, and a third control chamber,wherein the control valve (12) is configured to be pneumatically actuated via the second control input (12b) with a parking-brake control pressure (p5), wherein the parking-brake control pressure (p5) is configured to act in such a manner on control arrangement (14b, 15b, 17c, 22, 23, 24) arranged in a valve housing (12f) of the control valve (12) that a spring-loaded brake pressure (p3b) arises at a working output (12c) of the control valve (12) as a function of the parking-brake control pressure (p5) for implementing a parking-brake braking demand (VP) with the spring-loaded parts (3b) of the rear-axle wheel brakes (3),
wherein the control valve (12) is further configured to receive, via the first control input (12a), a service-brake control pressure (pV; pR) which depends on a service-brake braking demand (VB), wherein the first control input (12a) is connectable to an adjustable first control chamber (14a), wherein the first control chamber (14a) is operatively connected, via a first control piston (15a), to the control arrangement (14b, 15b, 17c, 22, 23, 24) in the control valve (12) and, during an adjustment of the first control chamber (14a) as a result of pressurization with the service-brake control pressure (pV; pR), the spring-loaded brake pressure (p3b) at the working output (12c) is configured to be set as a function of the service-brake control pressure (pV; pR) and/or of the parking-brake control pressure (p5), wherein the first control piston (15a) is furthermore operatively connected to a third control chamber (14c),
wherein a first compressive force (X1) acts on the first control piston (15a) in a first direction (R1) when the first control chamber (14a) is pressurized with the service-brake control pressure (pV; pR), and a second compressive force (X2) in a second direction (R2) opposite to the first direction (R1) acts on the first control piston (15a) when the third control chamber (14c) is pressurized with the same service-brake control pressure (pV; pR),
wherein the control valve further comprises a switchable bypass valve (27) and the first control chamber (14a) is selectively connectable to the third control chamber (14c) for selectively charging the first and third control chambers (14a, 14c) with the same service-brake control pressure (pV; pR), the switchable bypass valve (27) comprising a bypass control piston (27d) controllable with two functionally independent control pressure sources (pU, p27).

US Pat. No. 10,899,189

COMPRESSED AIR SUPPLY SYSTEM

WABCO EUROPE BVBA, Bruss...

1. A compressed-air feed system for operating a pneumatic system, comprising:a compressed-air supply;
a compressed-air connection to the pneumatic system;
at least one ventilation connection to surroundings;
a pneumatic main line between the compressed-air supply and the compressed-air connection, the pneumatic main line having an air dryer and a regeneration throttle;
a first ventilation line between the pneumatic main line and the at least one ventilation connection, the first ventilation line having a first ventilation valve and a ventilation throttle, the first ventilation valve being a 4/2 directional valve; and
a second ventilation line between the compressed-air connection and the at least one ventilation connection, the second ventilation line having a second ventilation valve formed as a 2/2 directional valve, the 2/2 directional valve being configured, in a first position, as a check valve,
wherein the second ventilation line permits a larger minimum flow cross section of a throughflowing compressed-air flow than the first ventilation line, and
wherein the compressed-air feed system is designed to provide at least one operating mode in which the second ventilation valve is open over a predetermined time period of a ventilation process.

US Pat. No. 10,876,586

DISK BRAKE, IN PARTICULAR FOR COMMERCIAL VEHICLES

WABCO EUROPE BVBA, Bruss...

1. A disk brake, comprising:a wear sensor; and
an adjusting device having an adjusting element in the form of a pressure screw and/or a pressure sleeve,
wherein the adjusting element has a recess in which a reset device extends,
wherein the reset device is rotationally coupled to the adjusting element for resetting the adjusting device,
wherein the reset device is coaxial with the adjusting element, and
wherein at least a portion of the wear sensor lies in the recess and between the reset device and the adjusting element.

US Pat. No. 10,876,643

DIAPHRAGM NON-RETURN VALVE FOR A COMPRESSED AIR SYSTEM

WABCO EUROPE BVBA, Bruss...

1. A diaphragm non-return valve for a compressed air system, the diaphragm non-return valve comprising a housing, a purge output disposed on the housing, a valve seat disposed on the purge output, and a diaphragm disc attached to the housing and which lies on the valve seat in a closed state of the non-return valve and is lifted off the valve seat in an open state of the non-return valve, wherein the diaphragm disc is attached to the housing by a clamping bracket, wherein the clamping bracket has a holding component via which the clamping bracket is attached to an outlet-side end of the purge output, and wherein the holding component of the clamping bracket is formed as a latching clip which can be connected to a catch on an outlet pipe arranged on the housing, or that mechanically conversely, the outlet pipe comprises a latching clip and the clamping bracket has a catch, wherein the latching clip and the catch can be connected together.

US Pat. No. 10,837,506

DISC BRAKE, IN PARTICULAR FOR UTILITY VEHICLES

WABCO EUROPE BVBA, (BE)

1. A disc brake for commercial vehicles, comprising:a brake disc (13);
a first brake lining (14) on a first side of the brake disc (13);
a second brake lining (16) on a second side of the brake disc (13) opposite the first side;
a brake carrier (10);
a brake caliper (12) mounted in a floating manner; and
a restoring device (52), wherein the restoring device (52) is configured to generate a force to move the brake caliper (12) in relation to the brake carrier (10) in the direction opposite to a direction of movement of the brake caliper (12),
wherein the brake caliper (12) is mounted on a bolt (54) displaceably in relation to the brake carrier (10), and the restoring device (52) includes a spring arranged entirely inside the bolt.

US Pat. No. 10,807,581

DRIVER BRAKE VALVE, COMPRESSED-AIR BRAKE SYSTEM HAVING THE DRIVER BRAKE VALVE, AND METHOD FOR PRODUCING THE DRIVER BRAKE VALVE

WABCO EUROPE BVBA, Bruss...

1. A driver brake valve for a compressed air brake system of a commercial vehicle, wherein the driver brake valve is configured to be controlled by a brake pedal and is further configured to output an analog driver braking pressure and an electrical sensor desired signal in dependence upon the actuation of the brake pedal, the driver brake valve comprising:a compressed air input configured to connect to a system pressure;
a compressed air output configured to connect to a brake control line;
a sensor configured to determine an actuation of the brake pedal;
a characteristic curve storage device configured to store characteristic curve data; and
a determining device;
wherein the sensor is configured to generate an actuating signal in dependence upon the actuation of the brake pedal,
wherein the determining device is configured to generate a sensor desired signal from the actuating signal in dependence upon the characteristic curve data, and
wherein the characteristic curve data are formed by calibrating the brake valve and measuring the driver braking pressure that is output.

US Pat. No. 10,744,993

METHOD FOR MONITORING A BRAKE FOR MOTOR VEHICLES, BRAKE SYSTEM FOR IMPLEMENTING THE METHOD, AND MOTOR VEHICLE COMPRISING SAME

WABCO EUROPE BVBA, Bruss...

1. A method for determining a width of an air gap between a brake pad and a friction partner of a pneumatically actuatable brake, the method comprising:determining, by a brake wear sensor, a reference position value of the brake pad during unbraked travel of the vehicle;
determining multiple value pairs, each value pair comprising a respective brake pressure and a corresponding position value of the brake pad measured by the brake wear sensor under the presence of the respective brake pressure;
determining a characteristic function that defines characteristic position values of the brake pad for particular pressure values;
determining a contact position value of the brake pad defined by the characteristic function for a predetermined application pressure; and
determining the width of the air gap by subtracting the reference position value of the brake pad from the contact position value of the brake pad,
wherein determining the characteristic function comprises:
excluding, from the multiple value pairs, each value pair comprising a respective brake pressure that is less than a minimum threshold pressure so as to provide multiple remaining value pairs, and
performing interpolation on the multiple remaining value pairs to provide the characteristic function, and
wherein the threshold pressure is greater than the predetermined application pressure.

US Pat. No. 10,723,338

CONTROL VALVE OF A COMPRESSED AIR SYSTEM

WABCO Europe BVBA, Bruss...

1. A control valve (3) of a compressed air system of a vehicle, comprising:a housing forming a cylinder (25);
a control piston (22) guided in an axially movable manner in the cylinder (25),
two pressure chambers (32, 34) being separated from one another by the control piston (22),
a sealing ring (37, 37?) arranged on the outer circumference of the control piston (22, 36) and sealingly engaging an inner wall of the cylinder,
wherein the sealing ring (37, 37?) is a radial sealing ring having an axial length which substantially corresponds to the axial thickness of the control piston (22, 36), wherein the sealing ring (37, 37?) has two axial edges, each of which includes one respective radially obliquely outwardly directed sealing lip (39, 40) in contact with the inner wall (38) of the cylinder (25), and wherein a plurality of guide members (50, 51) distributed over the circumference of the sealing ring (37, 37?) are formed between the two sealing lips (39, 40) on the sealing ring (37, 37?).