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Device and method to monitor sensors in vehicles

  • US 6,122,577 A
  • Filed: 08/05/1998
  • Issued: 09/19/2000
  • Est. Priority Date: 09/07/1996
  • Status: Expired due to Term
First Claim
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1. An apparatus for monitoring sensors in a vehicle, the sensors generating signals representing different physical variables, the apparatus comprising:

  • a first arrangement determining at least a first comparison variable for a first unit of the sensors and a second comparison variable for a second unit of the sensors, the first and second comparison variables being identically defined and being determined as a function of the signals generated by the first and second units;

    a second arrangement determining a reference variable as a function of the first and second comparison variables; and

    a third arrangement performing the following functions;

    monitoring at least one of the sensors as a function of the reference variable, andcorrecting the signal generated by at least one of the sensors as a function of the reference variable.

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