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METHOD AND SYSTEM FOR ADAPTIVELY COMPENSATING CLOSED-LOOP FRONT-WHEEL STEERING CONTROL

  • US 20090319130A1
  • Filed: 08/25/2009
  • Published: 12/24/2009
  • Est. Priority Date: 03/10/2006
  • Status: Active Grant
First Claim
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1. A method for active front wheel steering control for a vehicle having steerable front wheels and fixed rear wheels, comprising:

  • generating a steering wheel angle signal corresponding to a steering wheel angle;

    controlling the steerable front wheels based upon a steering control signal comprising a combination of an open-loop steering control signal and a closed-loop steering control signal;

    estimating vehicle dynamics parameters based upon signal inputs from vehicle sensors;

    providing the open-loop steering control signal corresponding to the steering wheel angle signal;

    providing the closed-loop steering control signal based upon the estimated vehicle dynamics parameters;

    providing an original yaw rate feedback angle signal; and

    providing a corrected yaw rate feedback angle signal based on the estimated vehicle dynamics parameters;

    wherein the corrected yaw rate feedback angle signal is provided in accordance with the relationship;

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