Crash discriminator responsive to early-crush and multiple-hit s

Details Crash discriminator responsive to early-crush and multiple-hit s Crash discriminator responsive to early-crush and multiple-hit s

1994-10-25

1996-04-16

Trans, Vincent N.

Boots, shoes, and leggings

340436, 307 101, 280735, 180282, B60R 2132

Patent

active

055089208

ABSTRACT:
In a system and method for controlling actuation of a vehicle passenger safety device in response to an event possibly requiring actuation of the safety device, stored and rank-ordered values for received vehicle acceleration are used to generate a high-rank jerk measure (j.sub.H), a median-ranked acceleration value (a.sub.M) and a median-rank velocity measure (v.sub.M), while raw acceleration information is further used to generate an "event-based timer" or event-progress measure (t') . These measures (j.sub.H, a.sub.M, v.sub.M, t') are then used to generate a pair of event-identification measures (m.sub.1, m.sub.2) useful in identifying two specific crash types for which specialized acceleration-based event-severity measures other than the default event-severity measure (m.sub.0) are best suited, specifically, where a series of negative jerks occurring relatively early in an event from a high transitory acceleration identify the occurrence of a sizable vehicle crush, or where a series of small jerks occurring relatively late in an event above a minimum velocity identifies a "multiple hit" event.

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