Patents by Inventor Robert Zdych

Robert Zdych 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: 11260870
    Abstract: A tire (100) rolls on a surface (105). A method (600) for providing maximum traction coefficient between the tire (100) and the surface (105) include steps for detecting a momentary slip of the tire (100) on the surface (105); detecting a momentary traction coefficient; forming a tuple (410, 510) from the slip and the current traction coefficient; choosing a characteristic curve (205, 305) from a number of predetermined characteristic curves (205, 305) on the basis of the tuple (410, 510), whereby each characteristic curve (205, 305) describes a traction behavior of the tire (100) or a corresponding characteristic pitch; determining the maximum traction coefficient on the basis of the selected characteristic curves (205, 305); and thus providing the maximum traction coefficient.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: March 1, 2022
    Assignee: ZF Friedrichshafen AG
    Inventors: Robert Zdych, Heinz-Joachim Gilsdorf, Volker Wagner, Ulrich Mair, Lara Ruth Turner, Julian King
  • Patent number: 11091165
    Abstract: A method for estimating a probability distribution of the maximum coefficient of friction (?) at a current and/or future waypoint (s, s*) of a vehicle. According to the method, a first probability distribution (WV1) for the maximum coefficient of friction (?) at the waypoint (s) of the vehicle is determined by a Bayesian network from a first data set, which is, or was determined, for one, in particular current, waypoint (s) of the vehicle and which characterizes the maximum coefficient of friction (?) at the waypoint (s) of the vehicle.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: August 17, 2021
    Assignees: ZF FRIEDRICHSHAFEN AG, LUCAS AUTOMOTIVE GMBH
    Inventors: Matthias Schlegel, Jochen Abhau, Heinz-Joachim Gilsdorf, Julian King, Jochen Köhler, Horst Krimmel, Gerhard Niederbrucker, Lara Ruth Turner, Volker Wagner, Robert Zdych, Vanessa Adler, Sascha Heinrichs-Bartscher, Ralf Raffauf, Holger Simon, Walter Stein
  • Publication number: 20210129850
    Abstract: A tire (100) rolls on a surface (105). A method (600) for providing maximum traction coefficient between the tire (100) and the surface (105) include steps for detecting a momentary slip of the tire (100) on the surface (105); detecting a momentary traction coefficient; forming a tuple (410, 510) from the slip and the current traction coefficient; choosing a characteristic curve (205, 305) from a number of predetermined characteristic curves (205, 305) on the basis of the tuple (410, 510), whereby each characteristic curve (205, 305) describes a traction behavior of the tire (100) or a corresponding characteristic pitch; determining the maximum traction coefficient on the basis of the selected characteristic curves (205, 305); and thus providing the maximum traction coefficient.
    Type: Application
    Filed: January 31, 2018
    Publication date: May 6, 2021
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Robert Zdych, Heinz-Joachim Gilsdorf, Volker Wagner, Ulrich Mair, Lara Ruth Turner, Julian King
  • Publication number: 20190299997
    Abstract: A method for estimating a probability distribution of the maximum coefficient of friction (?) at a current and/or future waypoint (s, s*) of a vehicle. According to the method, a first probability distribution (WV1) for the maximum coefficient of friction (?) at the waypoint (s) of the vehicle is determined by a Bayesian network from a first data set, which is, or was determined, for one, in particular current, waypoint (s) of the vehicle and which characterizes the maximum coefficient of friction (?) at the waypoint (s) of the vehicle.
    Type: Application
    Filed: May 11, 2017
    Publication date: October 3, 2019
    Inventors: Matthias SCHLEGEL, Jochen ABHAU, Heinz-Joachim GILSDORF, Julian KING, Jochen KÖHLER, Horst KRIMMEL, Gerhard NIEDERBRUCKER, Lara Ruth TURNER, Volker WAGNER, Robert ZDYCH, Vanessa ADLER, Sascha HEINRICHS-BARTSCHER, Ralf RAFFAUF, Holger SIMON, Walter STEIN
  • Publication number: 20190263421
    Abstract: A method (100) of determining driving state variables of a motor vehicle (105) includes scanning an input vector (u) of signals, which influence the driving state of the motor vehicle (105); scanning a first output vector (y) of variables, which describe the driving state of the motor vehicle (105); determining a second output vector (?) of variables that describe the driving state of the motor vehicle (105) based on the input vector (u), a weighting vector (r) and a state vector ({circumflex over (x)}); and adapting the weighting vector based on the difference between the two output vectors (y, ?). In doing so, the observer includes a Kalman filter.
    Type: Application
    Filed: July 3, 2017
    Publication date: August 29, 2019
    Inventor: Robert ZDYCH
  • Publication number: 20190161064
    Abstract: A method for determining a maximum adhesion limit between a tire and a substrate on which the tire is running in a longitudinal direction. The method includes detecting an instantaneous slip of the tire; detecting an instantaneous longitudinal force on the tire; determining an instantaneous coefficient of adhesion; forming a tuple from the detected slip and determined instantaneous coefficient of adhesion; and determining the adhesion limit. The adhesion limit is determined on the basis of the slope of a straight line passing through the origin and the tuple, if the slip is less than a first threshold value, or on the basis of the slope of a tangent passing through the tuple, if the slip is between the first threshold value and a second threshold value, or directly on the basis of the instantaneous coefficient of adhesion, if the slip is greater than the second threshold value.
    Type: Application
    Filed: June 27, 2017
    Publication date: May 30, 2019
    Inventors: Robert ZDYCH, Heinz-Joachim GILSDORF, Volker WAGNER, Matthias SCHLEGEL, Lara Ruth TURNER, Julian KING
  • Publication number: 20190143963
    Abstract: A method for determining a safe speed (v*) at a future waypoint (s*) of a vehicle moving along a route. In this step, at least one item of route data (in particular the curvature of the curve ?) characterizing the course of the route is determined. In addition, a first probability distribution (Pges) of a coefficient of friction (?) is provided at the current waypoint (s) and/or at the future waypoint (s*) of the vehicle. Subsequently a second probability distribution (Pv) of a vehicle speed (v) at the future waypoint (s*) is determined from the at least one item of route data (?) and from the first probability distribution (Pges). The safe speed (v*) is determined by statistical analysis from the second probability distribution (Pv).
    Type: Application
    Filed: April 27, 2017
    Publication date: May 16, 2019
    Applicants: ZF Friedrichshafen AG, Lucas Automotive GmbH
    Inventors: Matthias SCHLEGEL, Jochen ABHAU, Heinz-Joachim GILSDORF, Julian KING, Jochen KÖHLER, Horst KRIMMEL, Gerhard NIEDERBRUCKER, Lara Ruth TURNER, Volker WAGNER, Robert ZDYCH, Vanessa ADLER, Sascha HEINRICHS-BARTSCHER, Ralf RAFFAUF, Holger SIMON, Walter STEIN
  • Patent number: 8251873
    Abstract: A method for actuating a continuously variable clutch such that the torque to be transmitted by the clutch is continuously adjusted either electromechanically via an electromotive drive, hydraulically via a pressure actuator, or electromagnetically via an electromagnetic actuator. The torque transmitted by the clutch is adjusted by utilizing a position-dependent clutch torque specification.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: August 28, 2012
    Assignee: ZF Friedrichshafen AG
    Inventors: Robert Zdych, Michael Gromus, Claus Granzow
  • Publication number: 20100056336
    Abstract: A method for actuating a continuously variable clutch such that the torque to be transmitted by the clutch is continuously adjusted either electromechanically via an electromotive drive, hydraulically via a pressure actuator, or electromagnetically via an electromagnetic actuator. The torque transmitted by the clutch is adjusted by utilizing a position-dependent clutch torque specification.
    Type: Application
    Filed: November 5, 2007
    Publication date: March 4, 2010
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Robert Zdych, Michael Gromus, Claus Granzow