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Traction vehicle/wheel slip and slide control

  • US 6,152,546 A
  • Filed: 02/12/1997
  • Issued: 11/28/2000
  • Est. Priority Date: 02/12/1997
  • Status: Expired due to Term
First Claim
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1. A wheel slip/slide correction system for a vehicle having at least one driven wheel, the system comprising:

  • means for providing a first signal and a second signal representative, respectively, of actual vehicle velocity and vehicle acceleration;

    means for providing a third and a fourth signal representative, respectively, of measured wheel velocity and wheel acceleration of the at least one driven wheel;

    means for converting said first and second signals to equivalent wheel velocity and acceleration;

    means for comparing said equivalent wheel velocity to said measured wheel velocity and for obtaining at least one velocity error signal representative of the difference therebetween;

    means for comparing said at least one velocity error signal to at least one velocity threshold value and for generating a slip/slide signal when said at least one velocity error signal exceeds said threshold value;

    means responsive to said slip/slide signal for developing an acceleration error signal representative of any difference between said equivalent wheel acceleration and said measured wheel acceleration; and

    means for applying said acceleration error signal to adjust power to the driven wheel in a manner to reduce said velocity error signal below said threshold value.

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