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COLLISION DETECTING SYSTEM FOR A MOTOR VEHICLE

  • US 3,851,305 A
  • Filed: 05/22/1972
  • Issued: 11/26/1974
  • Est. Priority Date: 05/28/1971
  • Status: Expired due to Term
First Claim
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1. An electric collision detecting system for use with a safety device mounted on a motor vehicle, which comprises:

  • a collision detector for producing a collision signal when an object contacts the motor vehicle;

    a deceleration detector for producing a real deceleration signal having a magnitude proportional to the magnitude of a deceleration subjected to the motor vehicle;

    a function generator connected to said collision detector and producing a reference deceleration signal upon receiving said collision signal;

    a comparator connected to said function generator and to said deceleration detector and producing a drive signal when said real deceleration signal exceeds said reference deceleration signal; and

    an actuator connected to said comparator and actuating the safety device upon receiving said drive signal, further comprising;

    a gate signal generator producing a gate signal when said reference deceleration signal is lower than a predetermined value;

    a gate for passing therethrough said drive signal from said comparator to said actuator when receiving said gate signal, and said gate includes an AND gate having one input terminal connected to an output terminal of said csmparator and the other terminal connected to an output terminal of said gate signal generator.

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