Patents by Inventor Mark A. Boardman

Mark A. Boardman 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).

  • Torque modulation shift control system and method
    Patent number: 6352492
    Abstract: A shift control system is provided that is suitable for semi-automatic transmissions in heavy duty vehicles. The torque modulation system includes logic circuitry that employs a ramping torque function or algorithm to control the acceleration of torque, both positive and negative, and/or provides a longer dwell time in the torque clutch disengagement range. Moreover, dwell time at peak is not required. A method for improving gear disengagement and shift control in accordance with the principles of the invention is also disclosed.
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: March 5, 2002
    Assignee: Eaton Corporation
    Inventors: Jon A. Steeby, Warren R. Dedow, Mark A. Boardman