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Vehicle slip detection device

  • US 5,629,850 A
  • Filed: 03/08/1995
  • Issued: 05/13/1997
  • Est. Priority Date: 09/08/1992
  • Status: Expired due to Fees
First Claim
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1. A vehicle slip detection device comprising:

  • a vehicle speed sensor provided in a vehicle, for detecting a speed of the vehicle;

    a steering angle sensor provided in the vehicle, for detecting a steering angle of the vehicle;

    a heading angle sensor provided in the vehicle, for detecting a heading angle of the vehicle;

    theoretical turning angular velocity computing means for computing a theoretical turning angular velocity of the vehicle based on outputs of the vehicle speed sensor and the steering angle sensor;

    correcting means for correcting the theoretical turning angular velocity based on the theoretical turning angular velocity computed by the theoretical turning angular velocity computing means and on a lag time from operation of steering of the vehicle to a start of turning of the vehicle resulting from the operation;

    current turning angular velocity computing means for computing a current turning angular velocity of the vehicle based on an output of the heading angle sensor; and

    detection means for detecting a slip of the vehicle based on a difference between the computed current turning angular velocity and the corrected theoretical turning angular velocity.

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