Patents by Inventor Chad E. Griffin

Chad E. Griffin 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).

  • Dynamometer vehicle operating mode control
    Patent number: 9020659
    Abstract: A vehicle and a method of controlling a dynamometer mode operation of a vehicle that includes requesting the dynamometer mode; monitoring for at least one non-dynamometer vehicle operating condition; if at least one of the non-dynamometer vehicle operating conditions is detected, prohibiting dynamometer mode; and if none of the non-dynamometer vehicle operating conditions is detected, operating the vehicle in dynamometer mode.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: April 28, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: John W. Harris, Mark D. Malone, Marian S. Chupa, Chad E. Griffin, William N. Mansur, Mark R. Laleman
  • Controlled vehicle launch using a stepped ratio transmission
    Patent number: 8690728
    Abstract: A method for controlling a vehicle powertrain during launch includes controlling slip across a first clutch that transmits engine torque through the first clutch and the current gear while a transmission operates in a current gear other than a launch gear, disengaging the first clutch, engaging the launch gear, and controlling slip across a second clutch that transmits engine torque through the second clutch and the launch gear.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: April 8, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Chad E. Griffin, Bradley D. Riedle, Jeffrey M. Jarvi, James B. Keyse, Daniel T. Lin
  • DYNAMOMETER VEHICLE OPERATING MODE CONTROL
    Publication number: 20130338849
    Abstract: A vehicle and a method of controlling a dynamometer mode operation of a vehicle that includes requesting the dynamometer mode; monitoring for at least one non-dynamometer vehicle operating condition; if at least one of the non-dynamometer vehicle operating conditions is detected, prohibiting dynamometer mode; and if none of the non-dynamometer vehicle operating conditions is detected, operating the vehicle in dynamometer mode.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 19, 2013
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: John W. Harris, Mark D. Malone, Marian S. Chupa, Chad E. Griffin, William N. Mansur, Mark R. Laleman
  • CONTROLLED VEHICLE LAUNCH USING A STEPPED RATIO TRANSMISSION
    Publication number: 20130109532
    Abstract: A method for controlling a vehicle powertrain during launch includes controlling slip across a first clutch that transmits engine torque through the first clutch and the current gear while a transmission operates in a current gear other than a launch gear, disengaging the first clutch, engaging the launch gear, and controlling slip across a second clutch that transmits engine torque through the second clutch and the launch gear.
    Type: Application
    Filed: November 1, 2011
    Publication date: May 2, 2013
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Chad E. Griffin, Bradley D. Riedle, Jeffrey M. Jarvi, James B. Keyse, Daniel T. Lin