Patents by Inventor Christian Wiehen

Christian Wiehen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11479221
    Abstract: A method for estimating achievable total braking force for an automated deceleration of a vehicle or vehicle combination includes performing, for each respective one of a plurality of brake units, at least partially applying, in an estimation braking operation by the respective brake unit, an estimation braking force configured to cause deceleration and determining, from measured values, a current deceleration caused by the estimation braking force. The method further includes, for each respective brake unit, determining, a respective braking characteristic value of the respective brake unit, the braking characteristic value representing a ratio between a partial braking force of the respective brake unit and a manipulated variable which is set for the partial braking force of the respective brake unit, and determining a respective achievable partial braking force. The method further includes estimating, as a sum of the respective achievable partial braking forces, the achievable total braking force.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: October 25, 2022
    Assignee: ZF CV SYSTEMS EUROPE BV
    Inventor: Christian Wiehen
  • Patent number: 11364886
    Abstract: A method for determining the overall-deceleration values is attainable by actuation of wheel brakes, of a utility vehicle or of a vehicle combination with several axles. For the purpose of implementing a deceleration request in the course of partial brake applications, a braking-force distribution with braking forces distributed unequally to brake units with the wheel brakes of one or more axles is undertaken. In each instance one of the brake units is selected and a larger braking force is imposed via this selected brake unit than via the other brake units. A current deceleration of the utility vehicle or of the vehicle combination is measured or ascertained and is assigned as partial-deceleration value to the respectively selected brake unit and stored and the attainable overall-deceleration values are determined as the sum of the partial-deceleration values of all the brake units.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: June 21, 2022
    Assignee: ZF CV SYSTEMS EUROPE BV
    Inventors: Thomas Dieckmann, Stephan Kallenbach, Torsten Wallbaum, Christian Wiehen
  • Publication number: 20200172063
    Abstract: A method for determining the overall-deceleration values is attainable by actuation of wheel brakes, of a utility vehicle or of a vehicle combination with several axles. For the purpose of implementing a deceleration request in the course of partial brake applications, a braking-force distribution with braking forces distributed unequally to brake units with the wheel brakes of one or more axles is undertaken. In each instance one of the brake units is selected and a larger braking force is imposed via this selected brake unit than via the other brake units. A current deceleration of the utility vehicle or of the vehicle combination is measured or ascertained and is assigned as partial-deceleration value to the respectively selected brake unit and stored and the attainable overall-deceleration values are determined as the sum of the partial-deceleration values of all the brake units.
    Type: Application
    Filed: April 24, 2018
    Publication date: June 4, 2020
    Inventors: Thomas Dieckmann, Stephan Kallenbach, Torsten Wallbaum, Christian Wiehen
  • Publication number: 20200156602
    Abstract: A method for estimating achievable total braking force for an automated deceleration of a vehicle or vehicle combination includes performing, for each respective one of a plurality of brake units, at least partially applying, in an estimation braking operation by the respective brake unit, an estimation braking force configured to cause deceleration and determining, from measured values, a current deceleration caused by the estimation braking force. The method further includes, for each respective brake unit, determining, a respective braking characteristic value of the respective brake unit, the braking characteristic value representing a ratio between a partial braking force of the respective brake unit and a manipulated variable which is set for the partial braking force of the respective brake unit, and determining a respective achievable partial braking force. The method further includes estimating, as a sum of the respective achievable partial braking forces, the achievable total braking force.
    Type: Application
    Filed: April 13, 2018
    Publication date: May 21, 2020
    Inventor: Christian Wiehen
  • Patent number: 9555672
    Abstract: A pressure control device for a vehicle tire inflating system is configured to receive compressed air via a ventilating inlet, activate at least one seal for sealing an air chamber between a stator and a rotor of a rotary feedthrough via a seal actuating outlet, and ventilate a tire at a ventilating outlet pressure via a ventilating outlet and the feedthrough. A control valve is pneumatically controllable by a control pressure, the ventilating outlet being ventilated at the outlet pressure by the control valve only when the control pressure is at least a defined minimum pressure. In response to pressure build-up at the ventilating inlet at least to the minimum pressure, the control pressure and the seal actuating pressure are built up for ventilating, but build-up of the control pressure is delayed with respect to the seal actuating pressure. Activation of a seal prior to ventilation of the ventilating outlet is possible without additional actuating channels.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: January 31, 2017
    Assignee: WABCO GmbH
    Inventors: Dirk Bernhardt, Thomas Dieckmann, Christian Wiehen, Frank Zielke
  • Patent number: 9079623
    Abstract: A rear spoiler device for a vehicle that has a rear door includes an air guiding element configured to attach to a lateral rear zone of the vehicle. The air guiding element can be pivoted between a travel position for contour extension and aerodynamic air guidance with the rear door of the vehicle closed, and a position in which it is hinged inwards with the rear door open. To this end, the air guiding element can be received in a hinge of the rear door, and the rear spoiler device has a spring device that presses the air guiding element in the travel position against a counter-stop formed on the hinge, preferably, on a hinge plate fastened to the rear door.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: July 14, 2015
    Assignee: WABCO GmbH
    Inventors: Dirk Bernhardt, Thomas Dieckmann, Werner Dreyer, Ingo Stumberg, Christian Wiehen, Frank Zielke
  • Patent number: 8991536
    Abstract: To lower the fuel consumption of a vehicle having a pneumatic brake system during operation of the vehicle by utilizing existing components to their full capacity, thus contributing to energy conservation, a method and device for controlling pressure is provided, wherein modes of compressed air expansion are provided. In a second compressed-air expansion mode, compressed air is channeled from a second compressed-air storage container to the compression chamber of the air compressor during expansion phases of the air compressor. In a third compressed-air expansion mode, compressed air is channeled from a third compressed-air storage container to the compression chamber of the air compressor during expansion phases of the air compressor.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: March 31, 2015
    Assignee: WABCO GmbH
    Inventors: Thomas Dieckmann, Ingo Stumberg, Christian Wiehen
  • Patent number: 8910739
    Abstract: A pressure control device for a vehicle comprises an electronic control unit and a valve device for controllably connecting a compression chamber of the vehicle's air compressor to the vehicle's compressed-air supply and storage system. The pressure control device is configured to (i) connect the compression chamber to the compressed-air supply and storage system in a compressed-air production mode to convey compressed air from the compression chamber into the compressed-air supply and storage system, (ii) connect the compression chamber to the compressed-air supply and storage system in a compressed-air expansion mode to convey compressed air from the compressed-air supply and storage system into the compression chamber, and (iii) switch from the compressed-air production mode to the compressed-air expansion mode and vice-versa by electrically actuating one or more electrically operable valves of the valve device.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: December 16, 2014
    Assignee: WABCO GmbH
    Inventors: Stefan Eisfelder, Ingo Stumberg, Christian Wiehen, Christoph Wilken
  • Publication number: 20140346808
    Abstract: A rear spoiler device for a vehicle that has a rear door includes an air guiding element configured to attach to a lateral rear zone of the vehicle. The air guiding element can be pivoted between a travel position for contour extension and aerodynamic air guidance with the rear door of the vehicle closed, and a position in which it is hinged inwards with the rear door open. To this end, the air guiding element can be received in a hinge of the rear door, and the rear spoiler device has a spring device that presses the air guiding element in the travel position against a counter-stop formed on the hinge, preferably, on a hinge plate fastened to the rear door.
    Type: Application
    Filed: July 18, 2012
    Publication date: November 27, 2014
    Applicant: WABCO GmbH
    Inventors: Dirk Bernhardt, Thomas Dieckmann, Werner Dreyer, Ingo Stumberg, Christian Wiehen, Frank Zielke
  • Publication number: 20140076409
    Abstract: A pressure control device for a vehicle tire inflating system is configured to receive compressed air via a ventilating inlet, activate at least one seal for sealing an air chamber between a stator and a rotor of a rotary feedthrough via a seal actuating outlet, and ventilate a tire at a ventilating outlet pressure via a ventilating outlet and the feedthrough. A control valve is pneumatically controllable by a control pressure, the ventilating outlet being ventilated at the outlet pressure by the control valve only when the control pressure is at least a defined minimum pressure. In response to pressure build-up at the ventilating inlet at least to the minimum pressure, the control pressure and the seal actuating pressure are built up for ventilating, but build-up of the control pressure is with respect to the seal actuating pressure. Activation of a seal prior to ventilation of the ventilating outlet is possible without additional actuating channels.
    Type: Application
    Filed: March 15, 2012
    Publication date: March 20, 2014
    Inventors: Dirk Bernhardt, Thomas Dieckmann, Christian Wiehen, Frank Zielke
  • Publication number: 20130333969
    Abstract: The aim of the invention is to lower the fuel consumption of a vehicle having a pneumatic brake system during operation of the vehicle by utilizing existing components to their full capacity, thus contributing to energy conservation. The invention relates to a method for controlling pressure, wherein modes of compressed air expansion are provided: in a second compressed-air expansion mode, compressed air is channeled from a second compressed-air storage container to the compression chamber of the air compressor during expansion phases of the air compressor. In a third compressed-air expansion mode, compressed air is channeled from a third compressed-air storage container to the compression chamber of the air compressor during expansion phases of the air compressor. The invention further relates to a pressure control device.
    Type: Application
    Filed: March 5, 2012
    Publication date: December 19, 2013
    Applicant: WABCO GmbH
    Inventors: Thomas Dieckmann, Ingo Stumberg, Christian Wiehen
  • Publication number: 20130004339
    Abstract: The invention relates to a pressure control device (7, 8, 9, 18, 22, 23, 24, 57, 58, 60, 70, 71, 80, 81, 82, 90) for a vehicle (100), wherein the vehicle (100) comprises at least one drive motor (101) for producing a driving force of the vehicle, a compressed-air supply and storage system (12), and an air compressor (1) that is or can be coupled to the drive motor (101) of the vehicle, and the pressure control device (7, 8, 9, 18, 22, 23, 24, 57, 58, 60, 70, 71, 80, 81, 82, 90) comprises at least one electronic control unit (18) and at least one valve device (7, 8, 9, 23, 24, 57, 58, 60, 70, 71, 80, 81, 82, 90) for controllably connecting a compression chamber (4) of the air compressor (1) to the compressed-air supply and storage system (12), wherein the pressure control device has the following characteristics: a) the pressure control device (7, 8, 9, 18, 22, 23, 24, 57, 58, 60, 70, 71, 80, 81, 82, 90) is designed to connect the compression chamber (4) to the compressed-air supply and storage system (12) in
    Type: Application
    Filed: March 7, 2011
    Publication date: January 3, 2013
    Inventors: Stephan Eisfelder, Ingo Stumberg, Christian Wiehen, Christoph Wilken
  • Patent number: 6719376
    Abstract: A process for braking a vehicle having at least first and second brakes, comprises supplying energy to the first and second brakes so as to actuate them, the energy being distributed between the first and second brakes in accordance with the brakes' response energies. Preferably, the momentary values of the response energies are used so that the first and second brakes are actuated simultaneously.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: April 13, 2004
    Assignee: Wabco GmbH
    Inventors: Bodo Klein, Axel Stender, Christian Wiehen, Norbert Witte
  • Patent number: 6264289
    Abstract: Implementation of a travel dynamics control system in a vehicle is facilitated by integration of same with other operational components of an electrically controlled vehicle braking system. In an embodiment of the invention, travel dynamics electronics are integrated with the braking system electronics. In another embodiment, a yawing speed sensor and a transverse acceleration sensor are integrated with the travel dynamics electronics.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: July 24, 2001
    Assignee: Wabco GmbH
    Inventors: Torsten Franke, Klaus Gläbe, Bodo Klein, Ralf Koschorek, Erwin Petersen, Thomas Reich, Christian Wiehen
  • Patent number: 6203115
    Abstract: A control system for a vehicle braking systems includes an electronic control system and a brake signal transmitter having at least one circuit actuatable by a driver of the vehicle. Each circuit of the brake signal transmitter transmits an electrical brake signal having a value which is dependent upon an actuating force and/or an actuating stroke supplied to the brake signal transmitter. The electronic control system emits at least one electrical brake actuating signal which is dependent upon the electrical brake signal transmitted by the brake signal transmitter. An electronics block which includes at least a portion of the electronic control system is provided. The brake signal transmitter and the electronics block are integrated into a combined component.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: March 20, 2001
    Assignee: WABCO GmbH
    Inventors: Hartmut Rosendahl, Bodo Klein, Wolfgang Stehr, Christian Wiehen, Stefan Klik, Ingo Stumberg, Detlef Neuhaus, Wolfgang Lichtenberg, Jens Gröger, Manfred Schult
  • Patent number: 5681992
    Abstract: A process to determine the response pressure of a brake in a braking system of a vehicle comprises: measuring the existing vehicle deceleration of the vehicle to determine a value of ground-vehicle deceleration, supplying a test pressure to the brake, measuring the deceleration of the vehicle after the test pressure has been supplied to the brake to determine a value of vehicle test deceleration, and comparing the value of ground-vehicle deceleration and the value of vehicle test deceleration. If the value of vehicle test deceleration is greater than the value of ground-vehicle deceleration by more than a predetermined tolerance value, the steps of the process are repeated with a reduced test pressure until the difference between the values of ground-vehicle deceleration and vehicle test deceleration is no more than the predetermined tolerance value.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: October 28, 1997
    Assignee: Wabco GmbH
    Inventors: Bodo Klein, Axel Stender, Christian Wiehen, Norbert Witte