Predictor/check crash discriminator
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United States of America Patent
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-
Apr 16, 1996
Issued Date -
N/A
app pub date -
Oct 8, 1991
filing date -
Jun 4, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system and method for triggering deployment of a vehicle air bag in response to a crash or sudden vehicle deceleration wherein a modified acceleration value is obtained by subtracting a correction term from data representative of sensed instantaneous vehicle acceleration; integrating the modified acceleration value to obtain a modified velocity value; estimating the transitory jerk of the acceleration data using a rank filter; obtaining the product of the estimated transitory jerk and the modified velocity; comparing the resulting velocity-jerk product to a threshold value therefor; and triggering deployment of the air bag when the velocity-jerk product exceeds the threshold value therefor.
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