Steering wheel torque based detection of misalignment of a vehicle steering system

  • US 6,650,980 B2
  • Filed: 06/12/2002
  • Issued: 11/18/2003
  • Est. Priority Date: 12/20/2000
  • Status: Expired due to Term
First Claim
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1. A method of detecting misalignment of a steering system of an automotive vehicle comprising the steps of:

  • determining when a vehicle is traveling in a substantially straight line;

    determining if steering wheel torque is required to maintain said vehicle in a condition of traveling in a substantially straight line;

    indicating a misalignment when said steering wheel torque is required to maintain said vehicle in a condition of traveling in a substantially straight line; and

    accumulating an error over time to obtain an accumulated alignment error and controlling said indicator in response to said accumulated alignment error.

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