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Vehicle braking apparatus having understeer correction with axle selection

  • US 6,481,806 B1
  • Filed: 10/31/2000
  • Issued: 11/19/2002
  • Est. Priority Date: 10/31/2000
  • Status: Expired due to Term
First Claim
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1. Brake control apparatus for a steerable motor vehicle having a body, suspension apparatus supporting the body on a pair of front wheels and a pair of rear wheels and means for generating an understeer signal indicating an understeer condition of the vehicle, the brake control apparatus comprising:

  • anti-lock brake control apparatus for each of the pair of rear wheels and means for generating an anti-lock signal for each of the pair of rear wheels when the anti-lock brake control apparatus for that wheel is active;

    means responsive to one or more sensors to detect in a vehicle turn a likely predetermined low traction on one of the pair of rear wheels on the inside of the turn due to vehicle body roll or pitch and provide a low traction indicating signal in response thereto;

    means responsive to the understeer signal for generating an understeer correcting brake command to increase a brake pressure on a wheel on the inside of the turn relative to a brake pressure on a wheel on the outside of the turn and to apply the understeer correcting brake command to the pair of front wheels when the low traction indicating signal is provided and anti-lock braking is not active.

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