Patents by Inventor Jeffrey M. Jarvi

Jeffrey M. Jarvi 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).

  • 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
  • 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