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Adaptive vehicle traction control system

  • US 5,090,511 A
  • Filed: 06/18/1990
  • Issued: 02/25/1992
  • Est. Priority Date: 08/14/1989
  • Status: Expired due to Fees
First Claim
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1. A method of adaptively controlling spin of a driven wheel of a vehicle having an engine for applying driving torque to the driven wheel, the method comprising the steps of:

  • determining wheel spin;

    determining a time lapse from a time the determined wheel spin first exceeds a low spin threshold to a time the determined wheel spin first exceeds a high spin threshold;

    reducing the driving torque applied to the wheel while the determined wheel spin is between the low and high spin thresholds at a rate having a predetermined direct relationships to the determined wheel spin; and

    reducing the driving torque applied to the wheel while the determined wheel spin is greater than the second spin threshold at a rate having (a) a predetermined inverse relationship to the time lapse and (b) the predetermined direct relationship to the determined wheel spin.

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