Patents by Inventor Robert M. Merrion

Robert M. Merrion 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).

  • Up-shift control in an automatic transmission with negative input torque
    Patent number: 8489295
    Abstract: A transmission control module including a shift control module that generates an enable signal when an up-shift is requested and the engine torque is below a threshold torque value. A turbine speed profile determination module that selectively generates a desired turbine speed profile. The shift control module controls a clutch pressure of an off-going clutch based on a measured turbine speed and the desired turbine speed profile when the enable signal is generated.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: July 16, 2013
    Inventors: Kevin L. Kluemper, Brett R. Caldwell, Jeffrey K. Runde, Robert M. Merrion
  • Torque converter clutch control
    Patent number: 8060286
    Abstract: A clutch control system comprises a clutch torque determination module and a clutch pressure control module. The clutch torque determination module determines a desired torque value for a torque converter clutch (TCC) based on a torque output of an engine, a pump torque value for a pump integrated with a torque converter, a desired engine acceleration, and an inertia value of the engine. The clutch pressure control module selectively controls pressure applied to the TCC based on the desired torque value.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: November 15, 2011
    Inventors: Kevin L. Kluemper, Jeffrey K. Runde, Robert M. Merrion
  • TORQUE CONVERTER CLUTCH CONTROL
    Publication number: 20100036572
    Abstract: A clutch control system comprises a clutch torque determination module and a clutch pressure control module. The clutch torque determination module determines a desired torque value for a torque converter clutch (TCC) based on a torque output of an engine, a pump torque value for a pump integrated with a torque converter, a desired engine acceleration, and an inertia value of the engine. The clutch pressure control module selectively controls pressure applied to the TCC based on the desired torque value.
    Type: Application
    Filed: January 5, 2009
    Publication date: February 11, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Kevin L. Kluemper, Jeffrey K. Runde, Robert M. Merrion
  • UP-SHIFT CONTROL IN AN AUTOMATIC TRANSMISSION WITH NEGATIVE INPUT TORQUE
    Publication number: 20090319143
    Abstract: A transmission control module including a shift control module that generates an enable signal when an up-shift is requested and the engine torque is below a threshold torque value. A turbine speed profile determination module that selectively generates a desired turbine speed profile. The shift control module controls a clutch pressure of an off-going clutch based on a measured turbine speed and the desired turbine speed profile when the enable signal is generated.
    Type: Application
    Filed: December 16, 2008
    Publication date: December 24, 2009
    Applicant: GENERAL MOTORS CORPORATION
    Inventors: Kevin L. Kluemper, Brett R. Caldwell, Jeffrey K. Runde, Robert M. Merrion