Method and apparatus for discriminating a vehicle crash using virtual sensing
First Claim
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1. An apparatus for controlling an actuatable restraining device, said apparatus comprising:
- sensing means securable to a vehicle for sensing crash acceleration and for providing a crash acceleration signal indicative thereof;
processing means for processing said crash acceleration signal with an occupant spring-mass model so as to provide an adjusted crash acceleration signal; and
discriminating means for controlling said actuatable restraining device in response to said adjusted crash acceleration signal.
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Abstract
A sensor (22) senses crash acceleration and provides a crash acceleration signal indicative thereof. A processor (54) sums the crash acceleration signal with an occupant spring-mass model (56, 60) so as to provide an adjusted or "virtual" crash acceleration signal (64) more nearly representative of the actual acceleration of the vehicle occupant during a crash event. A discriminating circuit (70, 76, 80, 82, 90, 92, 84, 100, 104, 108, and 96) controls the actuatable restraining device (28) in response to the adjusted crash acceleration signal (64).
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Citations
16 Claims
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1. An apparatus for controlling an actuatable restraining device, said apparatus comprising:
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sensing means securable to a vehicle for sensing crash acceleration and for providing a crash acceleration signal indicative thereof; processing means for processing said crash acceleration signal with an occupant spring-mass model so as to provide an adjusted crash acceleration signal; and discriminating means for controlling said actuatable restraining device in response to said adjusted crash acceleration signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for controlling an actuatable restraining device, said method comprising the steps of:
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sensing crash acceleration and providing a crash acceleration signal indicative thereof; processing said crash acceleration signal with an occupant spring-mass model so as to provide an adjusted crash acceleration signal; and controlling said actuatable restraining device in response to said adjusted crash acceleration signal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification