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Method and device for checking a sensor signal and for actuating a passenger protection means of a vehicle

  • US 9,950,684 B2
  • Filed: 03/13/2012
  • Issued: 04/24/2018
  • Est. Priority Date: 05/10/2011
  • Status: Active Grant
First Claim
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1. A method for checking a sensor signal from a sensor suitable for actuating a passenger protection arrangement of a vehicle, the method comprising:

  • comparing the sensor signal and at least two reference signals from at least two reference plausibility sensors repeatedly within a predetermined time interval after a detection of a collision or a rollover, so as to obtain a plurality of comparison results; and

    evaluating the sensor signal based on the plurality of comparison results to detect a fault in the sensor signal after the detection of the collision or the rollover;

    wherein the passenger protection arrangement is actuated based on the sensor signal, if no fault is detected when the sensor signal is checked, andwherein the sensor signal is determined to be plausible based on distances derived by comparisons of times between predetermined time intervals, and wherein each of the distances is between a value of the sensor signal and a value of one of the reference signals to which the value of the sensor signal was compared at a respective time.

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