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Method and device for monitoring sensors in a vehicle

  • US 6,253,130 B1
  • Filed: 12/08/1999
  • Issued: 06/26/2001
  • Est. Priority Date: 07/02/1997
  • Status: Expired due to Term
First Claim
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1. A device for monitoring sensors in a motor vehicle, each of the sensors generating signals representing different physical variables, the system comprising:

  • a first arrangement determining identically defined comparison variables for at least two of the sensors at least as a function of the signals generated by the at least two of the sensors;

    a second arrangement monitoring at least one of the sensors at least as a function of a sensor reference variable determined for the at least one of the sensors, the signals generated by the at least one of the sensors, and a respective threshold value; and

    a third arrangement determining a first variable at least as a function of at least two of the identically defined comparison variables, the respective threshold value being formed as a function of the first variable.

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