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Advanced wheel slip detection using suspension system information

  • US 6,766,239 B2
  • Filed: 03/07/2003
  • Issued: 07/20/2004
  • Est. Priority Date: 09/07/2001
  • Status: Expired due to Term
First Claim
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1. A method for determining longitudinal speed of a vehicle wheel for use in a vehicle slip control system comprising:

  • measuring an instantaneous angular rate of a vehicle wheel via an individual wheel speed sensor;

    measuring at least one operating characteristic of a portion of a vehicle suspension system associated with said vehicle wheel, said suspension operating characteristic at least in part representative of an instantaneous rolling radius of said vehicle wheel;

    determining an instantaneous rolling radius deviation corresponding to said vehicle wheel in response to said suspension operating characteristic; and

    generating a longitudinal wheel speed signal in response to said instantaneous angular rate and said instantaneous rolling radius deviation.

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