Apparatus and method responsive to vehicle jerk for actuating a

Details Apparatus and method responsive to vehicle jerk for actuating a Apparatus and method responsive to vehicle jerk for actuating a

1989-11-03

1990-12-04

Chin, Gary

Boots, shoes, and leggings

180274, 280735, 307 101, 340436, 340438, B60R 2132

Patent

active

049758500

ABSTRACT:
Apparatus and method are provided for actuating a passenger restraint system in a passenger vehicle. Vehicle deceleration is sensed and a vehicle condition signal is provided which varies in value with that of vehicle deceleration. The condition signal is differentiated to provide a jerk signal having a value which varies with the rate of change of the vehicle deceleration. A predetermined time period is timed only so long as the value of the condition signal exceeds that of a first threshold level. A second signal is provided so long as the value of the jerk signal exceeds that of a jerk threshold level. A trigger signal is provided for actuating the restraint system only when the second signal occurs during the predetermined time period.

REFERENCES:
patent: 3750100 (1973-07-01), Ueda
patent: 3762495 (1973-10-01), Usui et al.
patent: 3870894 (1975-03-01), Brede et al.
patent: 3911391 (1975-10-01), Held et al.
patent: 4638179 (1987-01-01), Mattes et al.
patent: 4842301 (1989-06-01), Feldmaier

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