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Process and circuit for controlling the control unit of a system for protecting vehicle occupants

  • US 5,742,916 A
  • Filed: 01/17/1997
  • Issued: 04/21/1998
  • Est. Priority Date: 12/23/1992
  • Status: Expired due to Term
First Claim
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1. A process for controlling and adjusting a control unit of a vehicle-occupant protection system by triggering the protection system if an accident is sufficiently serious, wherein the control unit includes:

  • at least one sensor for supplying at least one sensor signal during the accident, and a computing unit for computing ACTUAL values characterizing a course of the accident on the basis of the sensor signal, for independently and continuously redefining a time-variable triggering threshold value, the triggering threshold value being at least indirectly dependent on the momentary sensor signal value of the sensor signal during the course of the accident, the process comprising the steps of;

    a) computing with the computing unit the triggering threshold value on the basis of the progression of at least one ACTUAL value, which is determined by means of an average deceleration value,b) increasing the triggering threshold value with an increasing amount of the average deceleration;

    c) comparing with the computing unit the triggering threshold value with another ACTUAL value; and

    d) triggering the protection system if the other ACTUAL value exceeds the triggering threshold value.

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