Method for discriminating long-period, low-velocity crashes

Details Method for discriminating long-period, low-velocity crashes Method for discriminating long-period, low-velocity crashes

1992-04-27

1996-02-06

Teska, Kevin J.

Boots, shoes, and leggings

340436, 307 101, 280735, 180282, B60R 2132

Patent

active

054900662

ABSTRACT:
A vehicle crash discrimination method and system for controlling the actuation of a vehicle passenger restraint device (e.g., an air bag or a seat belt harness) comprises determining a vehicle velocity value and comparing it to a predetermined velocity threshold value. If the predetermined velocity threshold value is exceeded, the slope of vehicle acceleration with respect to time (i.e. jerk value) is determined and compared to a predetermined slope threshold value. The passenger restraint device is actuated if the predetermined slope threshold value is exceeded. The present method accurately discriminates between low-velocity crashes in which actuation of the passenger restraint device is not desired and low-velocity, long-time -period crashes in which actuation is desired by setting the velocity threshold equal to approximately half the velocity of a maximum allowable crash in which actuation of the passenger restraint device is not desired.

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