Boots – shoes – and leggings
Patent
1994-10-25
1996-10-08
Teska, Kevin J.
Boots, shoes, and leggings
340669, 307 101, 280734, 180282, B60R 2102, B60R 2132
Patent
active
055637914
ABSTRACT:
A system (10) and method for detecting an envelope of received vehicle acceleration information (a(t)) useful in controlling actuation of a vehicle passenger safety device, wherein consecutive values for received vehicle acceleration information (a(t)) are stored and rank-ordered in a pair of rank-order filters (14, 16) to provide a highest-ranked value (a.sub.H) from among the most-recent half of the stored values, and a highest-ranked value (a.sub.H ') from among the least-recent half of the stored values. The absolute value of the highest-ranked least-current value is taken and subtracted from the highest-ranked most-recent value to obtain a modified jerk measure (j.sub.H *). The absolute value of the thus-generated modified jerk value is taken to obtain a measure (m.sub.1) which tracks the envelope of the received acceleration information and, hence, is useful as an envelope detector when evaluating a crash waveform for purposes of controlling actuation of the safety device.
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Gillis Edward J.
Gioutsos Tony
Tabar Daniel N.
Automotive Systems Laboratory Inc.
Lyon Lyman R.
Teska Kevin J.
Walker Tyrone V.
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