×

Device and method for triggering passenger protection means

  • US 8,818,638 B2
  • Filed: 02/25/2008
  • Issued: 08/26/2014
  • Est. Priority Date: 04/19/2007
  • Status: Expired due to Fees
First Claim
Patent Images

1. A device for triggering a passenger protection system, comprising:

  • a sensor module including;

    first and second sensors in one housing;

    first and second separate hardware paths including respective signal conditioning circuits for the first and second sensors;

    a first monitoring circuit to monitor a first operating characteristic of the first hardware path; and

    a second monitoring circuit to monitor a second operating characteristic of the second hardware path, the monitored first and second operating characteristics being compared to each other; and

    an evaluation circuit, the evaluation circuit effecting the triggering of the passenger protection system upon receipt of signals from the sensor module;

    wherein the first operating characteristic is a first pulse count of a first pulse signal generated for the first sensor, and the second operating characteristic is a second pulse count of a second pulse signal generated for the second sensor.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×