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Method and apparatus for controlling an actuatable restraining device using XY crush-zone satellite accelerometers

  • US 8,118,130 B2
  • Filed: 05/03/2006
  • Issued: 02/21/2012
  • Est. Priority Date: 05/10/2005
  • Status: Active Grant
First Claim
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1. An apparatus for controlling a vehicle actuatable occupant restraining system in a vehicle comprising:

  • a central crash accelerometer at a central vehicle location sensing crash acceleration in a direction of a front-to-rear axis of the vehicle and providing a central crash acceleration signal indicative thereof;

    a crush zone crash accelerometer at a forward location of the vehicle sensing transverse crash acceleration in a direction transverse to the front-to-rear axis of the vehicle and providing a transverse crash acceleration signal indicative thereof; and

    a controller actuating the actuatable occupant restraining system in response to the central crash acceleration signal and the transverse crash acceleration signal, said controller determining a crash velocity value from said central crash acceleration signal and actuating said actuatable occupant restraining system by comparing said crash velocity value against a first velocity threshold function when said transverse crash acceleration signal from said crush zone crash accelerometer is at a first value and actuating said actuatable occupant restraining system by comparing said crash velocity value against a second velocity threshold function when said transverse crash acceleration signal from said crush zone crash accelerometer is at a second value.

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