Patents Represented by Attorney Allan J. Kippa

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  • Variable cam timing control system and method
    Patent number: 6101993
    Abstract: A system and method for measuring and controlling cam timing of an internal combustion engine uses a filtering method based on a number of equally spaced teeth mounted on the camshaft. The filtering method specifically removes certain oscillations caused by camshaft torsional effects. The filtering method also specifically removes oscillations due to production variations. These oscillations are removed with minimal effect on closed loop system response.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: August 15, 2000
    Assignee: Ford Global Technologies, Inc.
    Inventors: Donald J. Lewis, John David Russell