Method and apparatus for monitoring parameters of vehicle electronic control units

  • US 5,815,071 A
  • Filed: 12/12/1996
  • Issued: 09/29/1998
  • Est. Priority Date: 03/03/1995
  • Status: Expired due to Term
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First Claim
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1. Method for monitoring electronic control unit (ECU) parameters to detect tampering of expected ECU parameters in a vehicle which includes an ECU, said ECU being connected to a data link within said vehicle, said ECU having a parameter stored therein for regulating a corresponding operational function of said vehicle, said vehicle being in communication with a remote base station, the method comprising the steps of:

  • storing a list of initial ECU preset expected operational function regulating parameters within a memory unit within said vehicle, separate from said ECU;

    retrieving a current ECU parameter from said ECU within said vehicle at predetermined intervals;

    comparing said current ECU parameter to said initial ECU preset expected parameters and detecting disagreement therebetween; and

    transmitting, to said remote base station, said current ECU parameter which is in disagreement with a corresponding initial ECU preset expected parameter.

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