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Rear wheel steering device for a vehicle

  • US 5,020,619 A
  • Filed: 01/17/1990
  • Issued: 06/04/1991
  • Est. Priority Date: 01/18/1989
  • Status: Expired due to Fees
First Claim
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1. A rear wheel steering device for a vehicle having steering control means for steering rear wheels in accordance with the formula,


  • space="preserve" listing-type="equation">TGθ

    .sub.R =-K.sub.F ·

    θ

    .sub.F +K.sub.R ·



    ψ

whereTGθ

R ;

a target steering angle of the rear wheelsθ

F ;

a steering angle of the front wheelsV;

a vehicle speedψ

;

a yaw rateKF, KR ;

coefficients determined by the properties of the vehicle, comprising;

vehicle condition detecting means for detecting various conditions of the vehicle; and

changing means connected with said steering control means and said vehicle condition detecting means for changing at least one of the coefficients KF, KR depending on the conditions of the vehicle.

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