×

Apparatus and method for actuating a passenger restraint system in a passenger vehicle

  • US 5,021,678 A
  • Filed: 11/03/1989
  • Issued: 06/04/1991
  • Est. Priority Date: 11/03/1989
  • Status: Expired due to Fees
First Claim
Patent Images

1. Apparatus for actuating a passenger restraint system in a passenger vehicle, comprising:

  • sensor means for providing a vehicle condition signal indicative of a potential deployment condition suitable for actuating said restraint system;

    means for providing a first signal so long as the value of said condition signal exceeds that of a first threshold level;

    integrating means operative in response to said first signal for integrating said condition signal and providing an integrated signal and normally operative to be reset upon termination of said first signal;

    means for providing a trigger signal for actuating said restraint system when the value of said integrated signal exceeds that of a second threshold level;

    means for preventing said integrating means from being reset upon termination of said first signal once said first signal has had a time duration of at least time period T1;

    means for resetting said integrating means after a time period T2 has taken place, wherein T2 has a duration greater than that of time period T1, so that said integrating means continues to integrate said condition signal during the interval between termination of time period T1 and termination of time period T2, even though the value of the condition signal drops below that of the first threshold level during said interval.

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