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Throttle traction control for automotive vehicle

  • US 5,341,298 A
  • Filed: 08/25/1992
  • Issued: 08/23/1994
  • Est. Priority Date: 08/25/1992
  • Status: Expired due to Term
First Claim
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1. Method of controlling wheel slippage upon acceleration of a motor vehicle having an engine controlled by a power control, said vehicle having driven wheels driven by said engine and nondriven wheels, comprising the steps of generating wheel speed signals representing the wheel speeds of the wheels of the vehicle, determining a wheel slippage condition of at least one of said wheels from said wheel speed signals in response to slipping of a wheel of the vehicle, and calculating a control signal controlling the power control of the engine to a controlled level less than the level established by the vehicle operator in response to the wheel slippage condition, calculating a driven wheel average wheel speed variable equal to the average wheel speeds of said driven wheels, calculating a nondriven wheel average wheel speed variable equal to the average wheel speeds of the nondriven wheel, calculating an error variable equal to the difference between the driven wheel average wheel speed signal and the nondriven wheel average wheel speed signal, recalculating said error variable during each of successive time periods, calculating a difference variable equal to the difference between the error variables calculated in successive time periods, and recalculating said control signal in each of said successive time periods as a function of the error variable and the difference variable.

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