Patents by Inventor Chao Sen (Mark) Hsu

Chao Sen (Mark) Hsu 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).

  • Input smoothing method and apparatus for an electronic throttle control system
    Patent number: 6157888
    Abstract: A method and apparatus for smoothing a throttle plate position command prior to being used by a closed loop throttle control unit. The method sequentially indexes through a lookup table storing a series of values of a smoothing function at routine time intervals. The difference between the current throttle plate command and the received throttle plate command is multiplied by the value of the smoothing function indexed from the lookup table. The product is then added to a reference throttle plate position command to generate a series of smoothed throttle plate position commands applied to the throttle control unit which provides smoother operation.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: December 5, 2000
    Assignee: Ford Global Technologies, Inc.
    Inventors: Paul Michael Suzio, Liang Tang, Chao Sen (Mark) Hsu