Method and apparatus for sensing a vehicle crash using a displac

Details Method and apparatus for sensing a vehicle crash using a displac Method and apparatus for sensing a vehicle crash using a displac

1996-04-22

1997-12-30

Rice, Kenneth R.

Land vehicles

Wheeled

Attachment

307 101, 36442405, B60R 2132

Patent

active

057021244

ABSTRACT:
A vehicle crash sensing arrangement includes an accelerometer (12). A crash velocity value (26) is determined in response to sensed crash acceleration. A crash displacement value (32) is determined from the sensed crash acceleration. A velocity varying displacement threshold value (36) determined. The crash displacement value (32) is compared (38) against the variable displacement threshold value (36). The comparator (38) provides a signal indicative of a vehicle crash condition when the crash displacement value is greater than the displacement threshold value.

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