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Method and device for deploying a retaining system

  • US 6,487,482 B1
  • Filed: 10/04/2000
  • Issued: 11/26/2002
  • Est. Priority Date: 02/20/1998
  • Status: Expired due to Term
First Claim
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1. A method for deploying a restraint system in response to an impact of a motor vehicle against an obstacle, the motor vehicle including an acceleration sensor arrangement having two sensitivity axes, one arranged in the X-direction, and one in the Y-direction, with the X-direction describing the direction of travel, and the Y direction describing the vehicle transverse direction, the method comprising the steps of:

  • generating a trigger signal for the restraint system from measured accelerations using an evaluation circuit;

    using a measured acceleration with respect to one of the two sensitivity axes for a plausibility check of a deployment decision;

    determining the deployment decision as a function of a measured acceleration with respect to the other of the two sensitivity axes using the evaluation circuit; and

    emitting the trigger signal only if a deployment decision signal and a plausibility signal are present simultaneously at inputs of an AND logic circuit.

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