Patents by Inventor Eileen A. Davidson

Eileen A. Davidson 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).

  • Gear shift control of a dual clutch transmission
    Patent number: 8079936
    Abstract: A method for controlling a gear shift of a dual clutch transmission having an offgoing clutch and an oncoming clutch, includes using torque transmitted by the oncoming clutch to control torque at a transmission output, using a speed of a power source to control a transfer of torque between the offgoing clutch and the oncoming clutch, and varying said torque capacity to produce a target slip across the oncoming clutch when the shift is completed.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: December 20, 2011
    Assignee: Ford Global Technologies, LLC
    Inventors: Kevin MacFarlane, Brian Keyse, Eileen A. Davidson, David Orton, Thomas R. Langeland
  • Vehicle Launch Startup Clutch Protection on a Grade
    Publication number: 20110169323
    Abstract: A method for controlling a vehicle powertrain includes holding the vehicle stopped on a grade by automatically producing wheel brake torque while driver demand torque is less than wheel brake torque, automatically releasing wheel brake torque when driver demand torque equals or exceeds wheel brake torque, and launching the vehicle using engine torque.
    Type: Application
    Filed: January 13, 2010
    Publication date: July 14, 2011
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Hongtei E. Tseng, Michael G. Fodor, Christopher J. Teslak, Bradley D. Riedle, Eileen A. Davidson
  • Gear Shift Control of a Dual Clutch Transmission
    Publication number: 20100261577
    Abstract: A method for controlling a gear shift of a dual clutch transmission having an offgoing clutch and an oncoming clutch, includes using torque transmitted by the oncoming clutch to control torque at a transmission output, using a speed of a power source to control a transfer of torque between the offgoing clutch and the oncoming clutch, and varying said torque capacity to produce a target slip across the oncoming clutch when the shift is completed.
    Type: Application
    Filed: April 9, 2009
    Publication date: October 14, 2010
    Inventors: Kevin MacFarlane, Brian Keyse, Eileen A. Davidson, David Orton, Thomas R. Langeland