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Slippage preventing apparatus for a vehicle

  • US 5,024,285 A
  • Filed: 07/26/1988
  • Issued: 06/18/1991
  • Est. Priority Date: 07/30/1987
  • Status: Expired due to Fees
First Claim
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1. A slippage preventing apparatus for a vehicle with one pair of either front or rear wheels being driven and the other pair being undriven, comprising:

  • driven wheel rotational speed detecting means for detecting a rotational speed of the driven wheel;

    undriven wheel rotational speed detecting means for detecting a rotational speed of the undriven wheel;

    cornering radius difference detecting means for detecting a difference in cornering radius between the driven wheel and the undriven wheel;

    torque adjusting means for adjusting a torque to be applied to the driven wheel by increasing or decreasing the torque;

    slip amount detecting means for detecting a slip amount or an amount of slippage of the driven wheel on a surface on the basis of the difference between the rotational speed of the driven wheel detected by said driven wheel rotational speed detecting means and the rotational speed of the undriven wheel detected by said undriven wheel rotational speed detecting means;

    slip amount controlling means for controlling the amount of slippage by increasing or decreasing the torque applied to the driven wheel by said torque adjusting means so as to reach a target slip amount; and

    correction means for correcting a control amount to be provided to said slip amount controlling means so as to compensate for deviations in detected slip amount resulting from the difference in cornering radius between the front and rear wheels detected by said cornering radius difference detecting means.

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