Patents Assigned to WABCO GmbH
  • Patent number: 10933852
    Abstract: A fluid-operated braking system (1) for a tractor-trailer vehicle includes a trailer control valve (2), a parking brake module (3), and an electronic control unit (4) electrically connected to the trailer control valve (2) and to the parking brake module (3). A pressure fluid accumulator (13) of the braking system (1) is connected to a control pressure input (P43) of the trailer control valve (2). A redundancy circuit controls the control pressure input (P43), even during a malfunction of the control unit (4). The parking brake module (3) includes a control valve (14), a redundancy valve (15) and a changeover valve (16) controlled by an electronic switch unit (20) with a holding function. When the control unit (4) malfunctions, the last error-free switching position of the control valve (14) or the redundancy valve is maintained until a operationally safe resting state is reached or the ignition system is switched off.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: March 2, 2021
    Assignee: WABCO GmbH
    Inventors: Andreas Goers, Thomas Müller, Jakob Friedrich Schmidt
  • Patent number: 10933854
    Abstract: A brake module for a hydraulically braked tractor coupled to a pneumatically braked trailer has a trailer control valve connected via hydraulic control inlet to a hydraulic pressure line leaving a master brake cylinder, and via pneumatic inlet to a compressed air reservoir. Hydraulic control pressure determines pneumatic output pressure level at a trailer control valve pneumatic outlet. The brake module has a break-off prevention module which, if the control line leaks or separates from the trailer control valve relative to the trailer brake system, closes a supply pressure coupling head supply line and causes trailer brake system venting. The break-off prevention module has a pneumatic supply pressure inlet and a pneumatic tear-off control pressure inlet connected to the air reservoir independently of trailer control valve pressure inlets. Supply pressure inlet supply pressure passes through the break-off prevention module and feeds to a trailer control valve pneumatic supply pressure inlet.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: March 2, 2021
    Assignees: WABCO GmbH, AGCO International GmbH
    Inventors: Mirko Bruett, Georg Frank, Stefan Prestel, Jan Spremberg
  • Patent number: 10926587
    Abstract: A tire pressure regulating system is disclosed for adjusting tire pressures of pneumatic tires of vehicle wheels of a plurality of vehicle axles of a motor vehicle while driving. The tire pressure regulating system comprises: at least one switchover valve, an axle valve, a wheel valve and a valve. A motor vehicle comprising the tire pressure regulating system is also disclosed.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: February 23, 2021
    Assignee: WABCO GMBH
    Inventors: Michael Haverkamp, Dennis Sabelhaus, Thomas Stellmacher
  • Patent number: 10899331
    Abstract: A hydraulic actuator for supplying a hydraulic brake pressure to service brakes of a vehicle includes an actuator cylinder including a piston. A hydraulic working pressure of a brake fluid can be set in accordance with a position of the piston. The brake fluid is supplied from a hydraulic reservoir assigned to the hydraulic cylinder, and the hydraulic working pressure prevails in a working space of the actuator cylinder and can be output via an actuator output port on the actuator cylinder in order to supply a hydraulic brake pressure in accordance with the hydraulic working pressure. The hydraulic actuator further includes an electrically controllable motor. A rotary motion brought about by the electrically controllable motor can be converted by a conversion mechanism into a translational motion of the piston parallel to a longitudinal direction thus enabling a hydraulic brake pressure to be supplied by electric control of the motor.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: January 26, 2021
    Assignee: WABCO GMBH
    Inventor: Thomas Dieckmann
  • Patent number: 10888890
    Abstract: A cleaning device for selectively bombarding a surface with a media sequence of at least a first medium and a second medium. The cleaning device includes a nozzle configured to bombard the surface with the second medium and a cleaning valve having a holding port, a pressure port, a plunger, and a pressure outlet. The cleaning device further includes a high-pressure accumulator configured to store the first medium, which is loaded with an accumulator pressure, and a changeover valve configured to selectively create a connection between a first medium supply line and a holding line connected to the holding port. The pressure outlet is configured to bombard the surface with the first medium in pulse-like fashion.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: January 12, 2021
    Assignee: WABCO GMBH
    Inventors: Jan Fiebrandt, Helge Westerkamp
  • Patent number: 10889274
    Abstract: A method for electronically controlling a vehicle deceleration of a brake slip-controlled vehicle comprising a pneumatic braking system includes detecting that at least one wheel of the vehicle has a brake slip that exceeds a setpoint brake slip; in response to detecting that at least one of the wheels of the vehicle has a brake slip that exceeds the setpoint brake slip, brake slip-controlling the at least one wheel in order to prevent a lockup of the at least one wheel; determining a braking effect caused by wheel brakes on the wheels of the vehicle; and adjusting brake pressures output at the wheel brakes of one or more non-brake slip-controlled wheels in order to adjust the induced braking effect. The brake pressures at the wheel brakes of all non-brake slip-controlled wheels are adjusted.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: January 12, 2021
    Assignee: WABCO GMBH
    Inventors: Horst Eckert, Florian Schwagmeyer
  • Patent number: 10871410
    Abstract: The present disclosure relates to a measuring device (42, 43) for measuring forces and/or torques between a motorized vehicle (1) and a trailer or attachment which is towed or pushed thereby, wherein the measuring device (42, 43) has at least three sensor elements (22, 34) which are arranged on a carrier (20, 31), transversely with respect to a virtual longitudinal axis of the motorized vehicle (1) and spaced apart from one another, wherein the measuring device (42, 43) is arranged in a coupling region between the motorized vehicle (1) and the pulled or pushed trailer or attachment, and wherein, in order to transmit their measured values, the sensor elements (22, 34) are connected to an evaluation device (40), which is configured to convert these measured values into signals for force displays and/or torque displays according to magnitude and direction.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: December 22, 2020
    Assignee: WABCO GmbH
    Inventors: Mirko Brütt, Johannes Bührke, Ludger Frerichs, Steffen Hanke, Sebastian Kemper, Lars Thielke, Frank Zielke
  • Patent number: 10866153
    Abstract: A measuring device (60) is configured for measuring forces or torques between a motorized vehicle (1) and a trailer or attachment which is towed or pushed thereby. The measuring device (60) has at least three sensor elements (79, 80) arranged on a carrier (71), transversely with respect to a virtual longitudinal axis of the motorized vehicle (1) and spaced apart from one another. The measuring device (60) is arranged in a coupling region between the motorized vehicle (1) and the pulled or pushed trailer or attachment. In order to transmit their measured values, the sensor elements (79, 80) are connected to an evaluation device (40), which is configured to convert these measured values into signals for force displays and/or torque displays according to magnitude and direction.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: December 15, 2020
    Assignee: WABCO GmbH
    Inventors: Mirko Brütt, Johannes Bührke, Ludger Frerichs, Steffen Hanke, Sebastian Kemper, Lars Thielke
  • Patent number: 10865813
    Abstract: A compressed air supply installation for operating a pneumatic installation, especially an air suspension installation of a vehicle, includes a compressed air supply unit, a compressed air port towards the pneumatic installation, a venting port towards the surroundings, a first pneumatic connection between the compressed air supply and the compressed air port, the first pneumatic connection having an air drier and a shut-off valve, and a second pneumatic connection between the compressed air port and the venting port. The shut-off valve is a pneumatically pilot-controlled check valve.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: December 15, 2020
    Assignee: WABCO GMBH
    Inventors: Dieter Frank, Frank Meissner, Uwe Stabenow
  • Patent number: 10859075
    Abstract: A double-piston compressor of a compressed air supply device includes a first pressure stage and a second pressure stage, each having a cylinder with a piston guided therein in an axially movable manner. The piston of the cylinder of the first pressure stage and the cylinder of the second pressure stage are rigidly connected to one another via a piston rod and are in driving connection with the drive shaft via a slotted guide. The slotted guide comprises a recess which is formed in the piston rod, provided with a slotted guide track and oriented perpendicularly to an axis of rotation of the drive shaft with its cross-sectional plane. The slotted guide comprises a drive roller which is engaged with the recess and fastened to the drive shaft in an axially parallel, eccentric, and also rotatable manner with respect to the axis of rotation of the drive shaft.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: December 8, 2020
    Assignee: WABCO GMBH
    Inventors: Klaus Bredbeck, Dieter Frank, Thorsten Weber
  • Patent number: 10851894
    Abstract: A compressor assembly for a compressed-air feed of a compressed-air supply system for operating a pneumatic system includes a compressor having a con-rod, a con-rod bearing, and a cylinder. The con-rod has a compressor piston. The compressor assembly further includes a drive having a drive shaft and a drive housing. The drive shaft is mounted in a drive bearing that is disposed within the drive housing. The drive bearing and the con-rod bearing partially or completely overlap one another in the axial direction, or the axial central plane of the drive bearing and the axial central plane of the con-rod bearing lie in one bearing plane. A crank disk is fixedly connected to an end portion of the drive shaft, the crank disk having a con-rod receptacle portion that is disposed so as to be eccentric to the drive shaft, the crank disk being rotatably connected to the con-rod.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: December 1, 2020
    Assignee: WABCO GMBH
    Inventors: Klaus Bredbeck, Uwe Stabenow
  • Patent number: 10843673
    Abstract: A method for controlling a compressed air brake system of a vehicle includes outputting an analog driver brake pressure via a brake pressure control line during driver braking by operating a brake pedal, a switching device set in a driver braking position to a brake circuit with at least one ABS stop valve device, a brake line, and a wheel brake. The method additionally includes, in the presence of both driver braking and the external brake demand signal, measuring the driver brake pressure and determining a driver brake pressure value. Furthermore, the method includes forming a combined brake pressure value by adding or superimposing the driver brake pressure value and an external brake pressure value contained in the external brake demand signal, and switching the switching device into the functional position and controlling the combined brake pressure value from the system pressure by actuating the ABS stop valve device.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: November 24, 2020
    Assignee: WABCO GMBH
    Inventors: Daniel Hanslik, Stephan Kallenbach, Alexander Wendlandt
  • Patent number: 10829100
    Abstract: A power-operated hydraulic brake system for a wheeled vehicle includes a main brake line; a brake valve configured to input a target brake pressure into the main brake line, the brake vale configured to be actuated via a brake pedal; a plurality of wheel brake lines branching off from the brake valve, each of which leads to an actuating unit of a wheel brake; and a valve assembly of an ABS control system. The valve assembly includes an inlet valve arranged between the main brake line and one of the wheel brake lines, and an outlet valve arranged between the relevant wheel brake line and an unpressurized return line. The inlet valve and the outlet valve are pressure-controlled 2/2-way switching valves with correspondingly large switching cross sections, and the inlet valve and the outlet valve are each assigned at least one pilot valve designed as a solenoid switching valve.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: November 10, 2020
    Assignee: WABCO GMBH
    Inventors: Mirko Bruett, Michael Haverkamp
  • Patent number: 10788151
    Abstract: A connection arrangement includes a first connection body and a second connection body for forming a pneumatic connection along a connection axis, and a sealing element configured to seal a sealing gap which surrounds the pneumatic connection and which has a longitudinal dimension which extends parallel to the connection axis. A pneumatic flow is able to travel through the first and second connection bodies along the connection axis. The first connection body has a through-hole having a cross section transverse to the connection axis. The second connection body is arranged at least partially in the through-hole. An at least partially circumferential first recess transverse to the connection axis is formed on an outer face of the first connection body extending parallel to the connection axis for receiving the sealing element.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: September 29, 2020
    Assignee: WABCO GMBH
    Inventors: Klaus Bredbeck, Dieter Frank, Frank Vogelsang
  • Patent number: 10767639
    Abstract: A compressor arrangement for operating a compressed air supply facility of a vehicle includes a compressor having an electric motor constructed as an electronically commutated, brushless DC motor with a control circuit comprising a power electronics unit, and a pneumatic compressor. The electric motor is constructed in the form of an external rotor motor.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: September 8, 2020
    Assignee: WABCO GMBH
    Inventors: Frank Meissner, Marco Seeger
  • Patent number: 10759420
    Abstract: A method for automatically activating a brake application in a vehicle includes using at least one detection device, detecting at least one object in the environment of the vehicle and, using at least one processor, determining that a vehicle is on a collision course with the at least one object, determining an S-shaped avoidance trajectory of the vehicle and at least one avoidance criterion based at least in part on the S-shaped avoidance trajectory, determining two extreme values of a transverse acceleration of the vehicle from the S-shaped avoidance trajectory, determining whether the at least one avoidance criteria is fulfilled by comparing the two extreme values with a threshold value, wherein the avoidance criteria is fulfilled when the two extreme values fall below the threshold value, and activating an automatic brake application in the vehicle when an activation criterion for the automatic brake application is fulfilled.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: September 1, 2020
    Assignee: WABCO GMBH
    Inventors: Ruediger Meyer, Dirk Sandkuehler, Christian Sulzbacher
  • Patent number: 10744982
    Abstract: A hydraulic power brake system (1) of a wheeled vehicle or for a vehicle unit has a main brake line (20, 21), in which a setpoint brake pressure can be controlled via a brake valve (4) that is operated via a brake pedal (7), and from which an axle brake line or a wheel brake line (46, 49, 50) branches off. Inlet valves and outlet valves and a pilot control valve of the ABS control system for the vehicle unit or for each vehicle axle are respectively disposed together in an ABS modulator block (69), which also includes a temperature sensor (70, 71, 72) for detecting the oil temperature (T) and a heating element (73, 74, 75) for locally heating the hydraulic oil are disposed in each ABS modulator block (69).
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: August 18, 2020
    Assignee: WABCO GmbH
    Inventors: Mirko Brütt, Michael Haverkamp
  • Patent number: 10735955
    Abstract: A method for establishing a wireless connection between a mobile communication device and a communication module (14) of a vehicle (10) with an identifier (17) is disclosed. According to the method, access rights, namely links between vehicle identifiers (17) and user identifiers, as well as data required for establishing the wireless connection, are stored in a database server (16) outside of the mobile communication device. A control unit (11, 12) for carrying out the method is also disclosed.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: August 4, 2020
    Assignee: Wabco GmbH
    Inventors: Thomas Dieckmann, Heiner Merten, Thomas Wolf
  • Patent number: 10730499
    Abstract: An electronically controllable pneumatic brake system includes a brake circuit, wherein a control valve is associated with the brake circuit for the purpose of adjusting braking pressures at service brakes independently of each other, wherein the control valve comprises an electronic control input for receiving an electrical control signal and a pneumatic control input for receiving a control pressure. The pneumatic brake system additionally includes a first control unit for outputting the electronic control signal depending on a target vehicle deceleration for the electrical actuation of the control valve, a first brake valve configured to specify a first brake valve control pressure, and a second brake valve configured to output a second brake valve control pressure. The second brake valve is disposed such that the first brake valve control pressure and/or the second brake valve control pressure is output as the control pressure to the control valve.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: August 4, 2020
    Assignee: WABCO GMBH
    Inventor: Robert Otremba
  • Patent number: 10724916
    Abstract: Disclosed is a vehicle control unit (10) comprising an electronic circuit, a circuit board (15), a housing (12) and at least one pressure sensor as a vehicle sensor (11), wherein the at least one vehicle sensor (11) is electrically connected to the electronic circuit for receiving measurement values. The vehicle sensor (11) is connected to the circuit board (15) via at least one press-fit contact (22). A vehicle comprising the vehicle control unit (10) is also disclosed.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: July 28, 2020
    Assignee: Wabco GmbH
    Inventors: Juri Harz, Tobias Kortlang