Patents by Inventor DONALD G. WIRKNER

DONALD G. WIRKNER 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: 10988135
    Abstract: An exemplary method for detecting a lateral oscillation of a vehicle includes monitoring yaw rate data and lateral acceleration data of the vehicle, analyzing the yaw rate and lateral acceleration data to generate a yaw rate signal energy distribution and a lateral acceleration signal energy distribution, determining whether a series of conditions are satisfied; and if the conditions are satisfied, automatically controlling the actuator to reduce the lateral oscillation of the vehicle. In some examples, the series of conditions includes the detection of spikes in the yaw rate and lateral acceleration data at approximately the same frequency, a magnitude of the spikes exceeding a first threshold, and a phase shift between the yaw rate and lateral acceleration data exceeding a second threshold.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: April 27, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Bo Yu, Donald G. Wirkner, Heng Zhou
  • Publication number: 20200164867
    Abstract: An exemplary method for detecting a lateral oscillation of a vehicle includes monitoring yaw rate data and lateral acceleration data of the vehicle, analyzing the yaw rate and lateral acceleration data to generate a yaw rate signal energy distribution and a lateral acceleration signal energy distribution, determining whether a series of conditions are satisfied; and if the conditions are satisfied, automatically controlling the actuator to reduce the lateral oscillation of the vehicle. In some examples, the series of conditions includes the detection of spikes in the yaw rate and lateral acceleration data at approximately the same frequency, a magnitude of the spikes exceeding a first threshold, and a phase shift between the yaw rate and lateral acceleration data exceeding a second threshold.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 28, 2020
    Inventors: Bo Yu, Donald G. Wirkner, Heng Zhou
  • Patent number: 9193241
    Abstract: Methods and apparatus are provided for a damper having a jounce shock. The damper includes a top mounting portion adapted to couple the damper to a vehicular frame and a bottom mounting portion adapted to couple the damper to a vehicular suspension system. The damper further includes a damper tube assembly disposed between the top mounting portion and the bottom mounting portion. The damper tube assembly includes a jounce shock system and a rod having a first piston and a second piston. The rod is movable within the damper tube assembly from a first position to a second position, and the second piston engages the jounce shock system as the rod approaches the second position.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: November 24, 2015
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Wojciech E. Suchta, Donald G. Wirkner, Andrew Roby, Dennis Baker
  • Publication number: 20140239567
    Abstract: Methods and apparatus are provided for a damper having a jounce shock. The damper includes a top mounting portion adapted to couple the damper to a vehicular frame and a bottom mounting portion adapted to couple the damper to a vehicular suspension system. The damper further includes a damper tube assembly disposed between the top mounting portion and the bottom mounting portion. The damper tube assembly includes a jounce shock system and a rod having a first piston and a second piston. The rod is movable within the damper tube assembly from a first position to a second position, and the second piston engages the jounce shock system as the rod approaches the second position.
    Type: Application
    Filed: January 13, 2014
    Publication date: August 28, 2014
    Applicants: THYSSENKRUPP BILSTEIN OF AMERICA, INC., GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: WOJCIECH E. SUCHTA, DONALD G. WIRKNER, ANDREW ROBY, DENNIS BAKER