Patents by Inventor David Chris Webert

David Chris Webert 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).

  • Control system and method for accelerator pedal based shift point stabilization for an automatic transmission
    Patent number: 8133154
    Abstract: A control system for determining a desired gear ratio of an automatic transmission includes a pedal rate module that determines a pedal rate of an accelerator pedal, and a shift module that determines the desired gear ratio of the transmission based on a position of the accelerator pedal and the pedal rate. The shift module determines the desired gear ratio based on a comparison of the pedal rate and a predetermined rate. The predetermined rate is based on a first period since the transmission shifted into a current gear. The shift module also determines the desired gear ratio based on one of a second period the pedal rate remains less than a positive rate and a third period the pedal rate remains greater than a negative rate. A related control method is also provided.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: March 13, 2012
    Inventors: Xuefeng Tim Tao, David Chris Webert, John E. Marano, Scott R. Verna
  • CONTROL SYSTEM AND METHOD FOR ACCELERATOR PEDAL BASED SHIFT POINT STABILIZATION FOR AN AUTOMATIC TRANSMISSION
    Publication number: 20090233765
    Abstract: A control system for determining a desired gear ratio of an automatic transmission includes a pedal rate module that determines a pedal rate of an accelerator pedal, and a shift module that determines the desired gear ratio of the transmission based on a position of the accelerator pedal and the pedal rate. The shift module determines the desired gear ratio based on a comparison of the pedal rate and a predetermined rate. The predetermined rate is based on a first period since the transmission shifted into a current gear. The shift module also determines the desired gear ratio based on one of a second period the pedal rate remains less than a positive rate and a third period the pedal rate remains greater than a negative rate. A related control method is also provided.
    Type: Application
    Filed: January 26, 2009
    Publication date: September 17, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Xuefeng Tim Tao, David Chris Webert, John E. Marano, Scott R. Verna