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Directional stability controller

  • US 5,506,770 A
  • Filed: 06/15/1994
  • Issued: 04/09/1996
  • Est. Priority Date: 06/21/1993
  • Status: Expired due to Fees
First Claim
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1. Directional stability controller for a motor vehicle having an engine which produces torque and a pair of steered wheels, said controller comprisingmeans for determining the wheel speeds of the steered wheels,means for determining the actual difference between the wheel speeds of the steered wheels,means for determining the vehicle speed,means for determining the steering angle of the steered wheels,means for generating a desired difference between the wheel speeds of the steered wheels from the steering angle and the vehicle speed using a single track model,an all-pass element which shifts the phase of the desired difference to produce a phase-shifted desired difference,means for determining the deviation between the phase-shifted desired difference and the actual difference, andmeans for varying the engine torque in response to the deviation.

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