Patents by Inventor Peter Francis Worrel

Peter Francis Worrel 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).

  • Patent number: 6378636
    Abstract: The invention is a method and system to provide negative torque to an electric vehicle (EV, FCEV, hybrid electric powertrain (HEV)) powertrain when only the electric motor is engaged and the accelerator pedal is released with the ultimate objective to provide consistent vehicle performance under varying operating conditions. This deceleration is at a calibratable amount for a calibratable time period using a hierarchical strategy employing a variety of means including dissipating the vehicle's kinetic energy as heat in the motor; regenerative braking; and activating a mechanical braking system. This negative torque on the powertrain is provided only briefly thereby reducing the total kinetic energy dissipation. The invention provides the driver a vehicle deceleration response similar in “feel” to releasing the accelerator of a conventional ICE vehicle under all operating modes, while maintaining optimal energy recovery.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: April 30, 2002
    Assignee: Ford Global Technologies, Inc.
    Inventor: Peter Francis Worrel