Airbag suppression controller with crash state evidence

Details Airbag suppression controller with crash state evidence Airbag suppression controller with crash state evidence

1997-06-20

2000-03-28

Gaffin, Jeffrey

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

307 38, 2807281, 280735, B60R 2132

Patent

active

060435666

ABSTRACT:
A switch selectively connects an airbag inflator or a load resistor to a crash sensing module to enable or disable an airbag. A transistor circuit across the load resistor detects whether deployment current is flowing in that resistor. Another transistor activated by the first transistor passes current to a fuse to open the fuse, permanently indicating a deployment event when the airbag was disabled. A latch circuit holds the second transistor on to assure sufficient time to open the fuse by melting.

REFERENCES:
patent: 3668627 (1972-06-01), Brainerd
patent: 4695075 (1987-09-01), Kamiji et al.
patent: 4956631 (1990-09-01), Itoh
patent: 5023529 (1991-06-01), Tennant
patent: 5071038 (1991-12-01), Credle, Jr. et al.
patent: 5080395 (1992-01-01), Morota et al.
patent: 5544914 (1996-08-01), Borninski et al.

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