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Slip control system for vehicle

  • US 5,351,779 A
  • Filed: 01/26/1994
  • Issued: 10/04/1994
  • Est. Priority Date: 01/27/1993
  • Status: Expired due to Fees
First Claim
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1. A slip control system for a vehicle comprising a traction control means for effecting traction control in which the amount of slip of the driving wheels of the vehicle relative to the road surface is detected and the engine output is controlled with a predetermined control variable so that the amount of slip of the driving wheels converges on a target value wherein the improvement comprisesa first determining means which determines that the friction coefficient μ

  • of the road surface is high,a limiting means which limits the control variable for said traction control when the first determining means determines that the friction coefficient μ

    of the road surface is high and the engine speed is not higher than a predetermined value while the traction control is being effected, anda limitation releasing means which releases the limitation of the control variable when the engine speed increases by a predetermined value from a minimum engine speed to which the engine speed fell as a result of the traction control before limitation of the control variable.

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