Patents by Inventor Stephan Kallenbach

Stephan Kallenbach 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: 11535213
    Abstract: A method for learning braking step threshold values of a sustained-action brake includes detecting a braking requirement setpoint, controlling the sustained-action brake with the braking requirement setpoint to generate a braking effect variable of the sustained-action brake, and detecting a sustained-action brake actual braking effect variable and a maximum sustained-action brake braking effect. The method additionally includes forming a braking effect variable coefficient that characterizes a ratio of the sustained-action brake actual braking effect variable and the maximum sustained-action brake braking effect variable that results from control of the sustained-action brake with the braking requirement setpoint, and assigning the braking effect variable coefficient to a braking step of the sustained-action brake such that each braking step is assigned only one braking effect variable.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: December 27, 2022
    Assignee: ZF CV SYSTEMS EUROPE BV
    Inventors: Daniel Hanslik, Stephan Kallenbach, Ahmed Ragab
  • Patent number: 11407408
    Abstract: A method for performing an evasive maneuver with a commercial vehicle-trailer combination includes ascertaining that a collision between the commercial vehicle-trailer combination and a collision object is impending. The method further includes determining an evasion trajectory by which the commercial vehicle-trailer combination can evade the collision object without coming into contact with the collision object, determining a desired steering angle based on the evasion trajectory and activating an active steering system of the commercial vehicle-trailer combination in dependence on the determined desired steering angle such that the commercial vehicle-trailer combination moves along the evasion trajectory from a starting traffic lane to a target traffic lane so as to perform the evasive maneuver.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: August 9, 2022
    Assignee: ZF CV SYSTEMS EUROPE BV
    Inventors: Christoph Barth, Thomas Dieckmann, Stephan Kallenbach, Ralph-Carsten Luelfing, Klaus Plaehn
  • 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
  • Patent number: 11148662
    Abstract: A method for controlling a hydraulic servo steering system in a vehicle includes reading out a collision warning signal to establish that a collision assistance case exists, and in response to determining that the collision assistance case exists, providing a hydraulic fluid by a hydraulic pump of the servo steering system. Serving for steering assistance has an actual volumetric flow-rate that is greater than or equal to a minimum volumetric flow-rate. The method additionally includes increasing a pump speed if the actual volumetric flow-rate is less than the minimum volumetric flow-rate, the pump speed being dependent on an engine/motor speed of a drive engine/motor interacting with the hydraulic pump.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: October 19, 2021
    Assignee: ZF CV SYSTEMS EUROPE BV
    Inventors: Daniel Hanslik, Stephan Kallenbach
  • Publication number: 20210291818
    Abstract: A method for performing an evasive maneuver with a commercial vehicle-trailer combination includes ascertaining that a collision between the commercial vehicle-trailer combination and a collision object is impending. The method further includes determining an evasion trajectory by which the commercial vehicle-trailer combination can evade the collision object without coming into contact with the collision object, determining a desired steering angle based on the evasion trajectory and activating an active steering system of the commercial vehicle-trailer combination in dependence on the determined desired steering angle such that the commercial vehicle-trailer combination moves along the evasion trajectory from a starting traffic lane to a target traffic lane so as to perform the evasive maneuver.
    Type: Application
    Filed: August 17, 2017
    Publication date: September 23, 2021
    Inventors: Christoph Barth, Thomas Dieckmann, Stephan Kallenbach, Ralph-Carsten Luelfing, Klaus Plaehn
  • Publication number: 20210232157
    Abstract: A method for setting a vehicle deceleration of a first vehicle travelling in a platoon includes setting, in the presence of a platooning mode, (i) a predetermined target distance between the first vehicle as a guide vehicle and a second vehicle following immediately behind the first vehicle and/or (ii) a predetermined target distance between the first vehicle as a following vehicle and a third vehicle travelling immediately in front of the first vehicle and at least one further vehicle following immediately behind the first vehicle. The method further includes limiting the vehicle deceleration of the first vehicle as the guide vehicle or as the following vehicle to a limit deceleration when a limitation criterion is met.
    Type: Application
    Filed: July 3, 2019
    Publication date: July 29, 2021
    Inventors: Thomas Dieckmann, Ralph-Carsten Luelfing, Stephan Kallenbach
  • Publication number: 20210197776
    Abstract: A method for emergency braking of a subject vehicle includes: detecting, using a first surroundings detection system of the subject vehicle traveling in a direction of travel, a front area in front of the subject vehicle; if an object is detected in the front area, determining that a reliable target detection situation is present if at least the following target detection situation criteria are fulfilled: the detected object is a vehicle in front traveling in the direction of travel, the vehicle in front is followed over a minimum following period, in the minimum following period, the same vehicle in front is followed, providing an autonomous emergency braking system which is in an AEBS standby mode during travel outside an emergency braking situation; and if an emergency braking situation is detected outside of a reliable target detection situation, switching the autonomous emergency braking system to an active AEBS mode.
    Type: Application
    Filed: March 15, 2021
    Publication date: July 1, 2021
    Inventors: Thomas Dieckmann, Stephan Kallenbach
  • Patent number: 11027712
    Abstract: A method for determining a coefficient-of-friction, the method including braking a first wheel of a vehicle such that a slip between the first wheel and a roadway is less than a slip between a second wheel of the vehicle and the roadway, and determining a coefficient-of-friction between the first wheel and the roadway based on the behavior of the first wheel during the braking. The method optionally including hazard braking the vehicle.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: June 8, 2021
    Assignees: ZF FRIEDRICHSHAFEN AG, WABCO EUROPE BVBA, TRW AUTOMOTIVE U.S. LLC
    Inventors: Friedrich Tenbrock, Sven Gohl, Christoph Schall, Dan Williams, Stephan Kallenbach, Klaus Plähn, Thomas Dieckmann, Ralph-Carsten Lülfing
  • Publication number: 20210163000
    Abstract: A method for distance control of a subject vehicle in relation to a front vehicle. The method includes setting, by an adaptive cruise control of the subject vehicle, an automatic distance control mode, wherein: a front object in front of the subject vehicle is detected by an environmental detection system of the subject vehicle, the front object is recognized as the front vehicle, and a distance to the front vehicle is regulated to an adaptive cruise control (ACC) target distance. The method further includes establishing that a safe following driving situation is present based on at least one criteria being met. The method additionally includes outputting, to a driver upon establishing that the safe following driving situation is present, a display signal, and setting, upon input of a confirmation signal by the driver, an automatic distance control platooning mode.
    Type: Application
    Filed: March 22, 2019
    Publication date: June 3, 2021
    Inventors: Thomas Dieckmann, Ralph-Carsten Luelfing, Oliver Wulf, Stephan Kallenbach
  • 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
  • Publication number: 20200250991
    Abstract: A method for arranging individual vehicles in a platoon includes determining a desired longitudinal offset and/or a desired transverse offset for at least one respective individual vehicle by determining at least one wind factor that characterizes how prevailing wind in a vehicle environment acts on the at least one respective individual vehicle of the platoon. The method further includes specifying the desired transverse offset and/or the desired longitudinal offset for the at least one respective individual vehicle of the platoon in dependence upon the at least one wind factor in such a manner that an air resistance acting on the at least one respective individual vehicle of the platoon reduces under the prevailing wind.
    Type: Application
    Filed: August 30, 2018
    Publication date: August 6, 2020
    Inventors: Stephan Kallenbach, Oliver Wulf
  • Publication number: 20200180609
    Abstract: A method for the predictive assessment of a current driving situation of a vehicle, in particular utility vehicle, includes determining currently present driving situation information, wherein the driving situation information characterizes the current driving situation of the vehicle. The method includes specifying the driving situation information to a neural algorithm, wherein the neural algorithm assigns, in the manner of a trained neural network, a driving situation category to the currently present driving situation information. The respective driving situation category is based on a predicted driving situation. The neural algorithm determines the predicted driving situation in accordance with the current driving situation and the predicted driving situation indicates a driving situation of the vehicle which will develop in future from the current driving situation. The method includes outputting an output value characterizing the driving situation category, as an assessment result.
    Type: Application
    Filed: May 18, 2018
    Publication date: June 11, 2020
    Inventors: Thomas Dieckmann, Stephan Kallenbach, Sebastian Kuehne, Ralph-Carsten Luelfing
  • Publication number: 20200172062
    Abstract: A method for learning braking step threshold values of a sustained-action brake includes detecting a braking requirement setpoint, controlling the sustained-action brake with the braking requirement setpoint to generate a braking effect variable of the sustained-action brake, and detecting a sustained-action brake actual braking effect variable and a maximum sustained-action brake braking effect. The method additionally includes forming a braking effect variable coefficient that characterizes a ratio of the sustained-action brake actual braking effect variable and the maximum sustained-action brake braking effect variable that results from control of the sustained-action brake with the braking requirement setpoint, and assigning the braking effect variable coefficient to a braking step of the sustained-action brake such that each braking step is assigned only one braking effect variable.
    Type: Application
    Filed: April 26, 2018
    Publication date: June 4, 2020
    Inventors: Daniel Hanslik, Stephan Kallenbach, Ahmed Ragab
  • 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: 20190359206
    Abstract: A method for controlling a hydraulic servo steering system in a vehicle includes reading out a collision warning signal to establish that a collision assistance case exists, and in response to determining that the collision assistance case exists, providing a hydraulic fluid by a hydraulic pump of the servo steering system. Serving for steering assistance has an actual volumetric flow-rate that is greater than or equal to a minimum volumetric flow-rate. The method additionally includes increasing a pump speed if the actual volumetric flow-rate is less than the minimum volumetric flow-rate, the pump speed being dependent on an engine/motor speed of a drive engine/motor interacting with the hydraulic pump.
    Type: Application
    Filed: August 17, 2017
    Publication date: November 28, 2019
    Inventors: Daniel Hanslik, Stephan Kallenbach
  • Patent number: 10399568
    Abstract: Automatically controlling the longitudinal dynamics of a vehicle includes ascertaining a state variable dependent on the state of at least one wheel brake, detecting overshoots and/or undershoots of a limiting value of the state variable, ascertaining information about a vehicle traveling ahead, setting at least one control of a feedback control system, and controlling the longitudinal dynamics of the vehicle as a function of the at least one control parameter. A sensing device used to ascertain the state of the at least one wheel brake, another sensing device is used to ascertain information about the vehicle traveling ahead, and an evaluating, setting and controlling unit is used to evaluate the state of the at least one wheel brake and the information about the vehicle traveling ahead for setting the at least one control parameter and for controlling the longitudinal dynamics of the vehicle as a function thereof.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: September 3, 2019
    Assignee: WABCO GMBH
    Inventors: Mathias Baum, Karsten Breuer, Stephan Kallenbach
  • Publication number: 20190193697
    Abstract: A method for determining a coefficient-of-friction, the method including braking a first wheel of a vehicle such that a slip between the first wheel and a roadway is less than a slip between a second wheel of the vehicle and the roadway, and determining a coefficient-of-friction between the first wheel and the roadway based on the behavior of the first wheel during the braking. The method optionally including hazard braking the vehicle.
    Type: Application
    Filed: May 16, 2017
    Publication date: June 27, 2019
    Applicants: ZF FRIEDRICHSHAFEN AG, WAB-CO EUROPE BVBA, TRW AUTOMOTIVE U.S. LLC
    Inventors: Friedrich Tenbrock, Sven Gohl, Christoph Schall, Dan Williams, Stephan Kallenbach, Klaus Plähn, Thomas Dieckmann, Ralph-Carsten Lülfing
  • Patent number: 10173681
    Abstract: Automatically regulating vehicle longitudinal dynamics in accordance with a preceding vehicle includes determining a first state variable dependent on vehicle acceleration, a second state variable dependent on engine drive torque, a third state variable dependent on the operating state of at least one permanent brake, and information about the preceding vehicle, and adjusting at least one regulating parameter of a regulation function and regulating the longitudinal dynamics depending on the at least one regulating parameter.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: January 8, 2019
    Assignee: WABCO GMBH
    Inventors: Mathias Baum, Karsten Breuer, Stephan Kallenbach
  • Publication number: 20180354483
    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: Application
    Filed: November 7, 2016
    Publication date: December 13, 2018
    Inventors: Daniel Hanslik, Stephan Kallenbach, Alexander Wendlandt
  • Publication number: 20160280225
    Abstract: Automatically regulating vehicle longitudinal dynamics in accordance with a preceding vehicle includes determining a first state variable dependent on vehicle acceleration, a second state variable dependent on engine drive torque, a third state variable dependent on the operating state of at least one permanent brake, and information about the preceding vehicle, and adjusting at least one regulating parameter of a regulation function and regulating the longitudinal dynamics depending on the at least one regulating parameter.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 29, 2016
    Inventors: Mathias Baum, Lauenau Breuer, Stephan Kallenbach