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).
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Patent number: 11479221Abstract: 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: GrantFiled: April 13, 2018Date of Patent: October 25, 2022Assignee: ZF CV SYSTEMS EUROPE BVInventor: Christian Wiehen
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Patent number: 11364886Abstract: 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: GrantFiled: April 24, 2018Date of Patent: June 21, 2022Assignee: ZF CV SYSTEMS EUROPE BVInventors: Thomas Dieckmann, Stephan Kallenbach, Torsten Wallbaum, Christian Wiehen
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Publication number: 20200172063Abstract: 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: ApplicationFiled: April 24, 2018Publication date: June 4, 2020Inventors: Thomas Dieckmann, Stephan Kallenbach, Torsten Wallbaum, Christian Wiehen
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Publication number: 20200156602Abstract: 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: ApplicationFiled: April 13, 2018Publication date: May 21, 2020Inventor: Christian Wiehen
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Patent number: 9555672Abstract: 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: GrantFiled: March 15, 2012Date of Patent: January 31, 2017Assignee: WABCO GmbHInventors: Dirk Bernhardt, Thomas Dieckmann, Christian Wiehen, Frank Zielke
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Patent number: 9079623Abstract: 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: GrantFiled: July 18, 2012Date of Patent: July 14, 2015Assignee: WABCO GmbHInventors: Dirk Bernhardt, Thomas Dieckmann, Werner Dreyer, Ingo Stumberg, Christian Wiehen, Frank Zielke
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Patent number: 8991536Abstract: 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: GrantFiled: March 5, 2012Date of Patent: March 31, 2015Assignee: WABCO GmbHInventors: Thomas Dieckmann, Ingo Stumberg, Christian Wiehen
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Patent number: 8910739Abstract: 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: GrantFiled: March 7, 2011Date of Patent: December 16, 2014Assignee: WABCO GmbHInventors: Stefan Eisfelder, Ingo Stumberg, Christian Wiehen, Christoph Wilken
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Publication number: 20140346808Abstract: 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: ApplicationFiled: July 18, 2012Publication date: November 27, 2014Applicant: WABCO GmbHInventors: Dirk Bernhardt, Thomas Dieckmann, Werner Dreyer, Ingo Stumberg, Christian Wiehen, Frank Zielke
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Publication number: 20140076409Abstract: 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: ApplicationFiled: March 15, 2012Publication date: March 20, 2014Inventors: Dirk Bernhardt, Thomas Dieckmann, Christian Wiehen, Frank Zielke
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Publication number: 20130333969Abstract: 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: ApplicationFiled: March 5, 2012Publication date: December 19, 2013Applicant: WABCO GmbHInventors: Thomas Dieckmann, Ingo Stumberg, Christian Wiehen
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Publication number: 20130004339Abstract: 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) inType: ApplicationFiled: March 7, 2011Publication date: January 3, 2013Inventors: Stephan Eisfelder, Ingo Stumberg, Christian Wiehen, Christoph Wilken
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Patent number: 6719376Abstract: 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: GrantFiled: March 20, 1996Date of Patent: April 13, 2004Assignee: Wabco GmbHInventors: Bodo Klein, Axel Stender, Christian Wiehen, Norbert Witte
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Patent number: 6264289Abstract: 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: GrantFiled: December 9, 1998Date of Patent: July 24, 2001Assignee: Wabco GmbHInventors: Torsten Franke, Klaus Gläbe, Bodo Klein, Ralf Koschorek, Erwin Petersen, Thomas Reich, Christian Wiehen
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Patent number: 6203115Abstract: 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: GrantFiled: March 30, 1999Date of Patent: March 20, 2001Assignee: WABCO GmbHInventors: Hartmut Rosendahl, Bodo Klein, Wolfgang Stehr, Christian Wiehen, Stefan Klik, Ingo Stumberg, Detlef Neuhaus, Wolfgang Lichtenberg, Jens Gröger, Manfred Schult
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Patent number: 5681992Abstract: 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: GrantFiled: March 20, 1996Date of Patent: October 28, 1997Assignee: Wabco GmbHInventors: Bodo Klein, Axel Stender, Christian Wiehen, Norbert Witte