Patents by Inventor John A. Cushing

John A. Cushing 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: 5547435
    Abstract: A method and system for controlling gear ratio changes of a transmission operating in a powertrain with an internal combustion engine controlled by an engine throttle and having a device, such as traction assist system, that alters engine torque from that corresponding to the position of the throttle. The control substitutes a synthetic throttle position for actual throttle position during a traction assist event. Gearshifts occur with reference to a schedule relating the desired gear, vehicle speed, and synthetic throttle position.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: August 20, 1996
    Assignee: Ford Motor Company
    Inventors: Peter J. Grutter, Matthew J. Gerhart, Matthew J. Gladd, John A. Cushing
  • Patent number: 5159810
    Abstract: An exhaust gas oxygen sensor downstream of a catalytic converter is used to control a closed loop air/fuel ratio control system. A measured limit cycle frequency at various engine speed/load conditions is compared to stored benchmark limit cycle frequencies as functions of engine speed/load conditions. If the measured frequency is higher, the catalytic converter is considered to be degraded.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: November 3, 1992
    Assignee: Ford Motor Company
    Inventors: Peter J. Grutter, Gerald G. Stock, John A. Cushing, Alexander Y. Gopp