State of health monitoring and fault diagnosis for integrated vehicle stability system

  • US 7,133,755 B2
  • Filed: 07/26/2004
  • Issued: 11/07/2006
  • Est. Priority Date: 07/26/2004
  • Status: Active Grant
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First Claim
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1. A method for determining a state of health of an integrated vehicle stability system, said method comprising:

  • providing at least one primary sensor and at least one secondary sensor for sensing the operation of at least one vehicle characteristic;

    calculating an estimated output of the at least one primary sensor using at least one estimate model;

    generating at least one residual as the difference between a measured output of the primary sensor and the estimated output of the at least one estimate model; and

    using the residual to determine if the primary sensor is faulty.

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