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Behavior control device of vehicle based upon monitoring movement of rear wheels

  • US 5,839,799 A
  • Filed: 10/02/1996
  • Issued: 11/24/1998
  • Est. Priority Date: 10/06/1995
  • Status: Expired due to Term
First Claim
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1. A behavior control device for a vehicle including a vehicle body, front left, front right, rear left and rear right wheels, steering means for steering said front left and front right wheels, and brake means for selectively variably braking each of said front left, front right, rear left and rear right wheels, comprising:

  • means for detecting vehicle speed;

    means for detecting steering angle of said front left and front right wheels;

    means for detecting slip angle of at least one of said rear left and rear right wheels;

    means for calculating a target value of said slip angle based upon parameters related with turn behavior of the vehicle including at least the vehicle speed detected by said vehicle speed detecting means and the steering angle detected by said steering angle detecting means; and

    control means for calculating a value of yaw moment to be applied to the vehicle body such that, when the calculated value of the yaw moment is applied to the vehicle body, the slip angle detected by said slip angle detecting means conforms to said target value thereof calculated by said target slip angle calculation means, said control means operating said brake means so as to variably brake a selected one or ones of said wheels in order to apply the calculated value of the yaw moment to the vehicle body.

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