Patents by Inventor Mark A. Yacoub

Mark A. Yacoub 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).

  • Negative torque upshift offgoing clutch control systems and methods
    Patent number: 8579762
    Abstract: A clutch control system for a vehicle includes a shift command module and an offgoing clutch control module. The shift command module commands an upshift of a clutch-to-clutch transmission when an engine torque is less than a predetermined negative torque. The offgoing clutch control module increases an offgoing clutch pressure above a predetermined apply pressure in response to the command. An offgoing clutch is fully engaged when the offgoing clutch pressure is greater than the predetermined apply pressure.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: November 12, 2013
    Inventors: Mark A Yacoub, Matthew D. Whitton, Craig J. Hawkins, Mark A. Schang, Robert L. Williams, Christopher Jay Weingartz
  • NEGATIVE TORQUE UPSHIFT OFFGOING CLUTCH CONTROL SYSTEMS AND METHODS
    Publication number: 20120010046
    Abstract: A clutch control system for a vehicle includes a shift command module and an offgoing clutch control module. The shift command module commands an upshift of a clutch-to-clutch transmission when an engine torque is less than a predetermined negative torque. The offgoing clutch control module increases an offgoing clutch pressure above a predetermined apply pressure in response to the command. An offgoing clutch is fully engaged when the offgoing clutch pressure is greater than the predetermined apply pressure.
    Type: Application
    Filed: July 9, 2010
    Publication date: January 12, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Mark A. Yacoub, Matthew D. Whitton, Craig J. Hawkins, Mark A. Schang, Robert L. Williams, Christopher Jay Weingartz