Boots – shoes – and leggings
Patent
1992-06-12
1993-02-09
Lall, Parshotam S.
Boots, shoes, and leggings
364485, 364576, 73 1201, 307 101, 280735, G01R 2300, G06K 962
Patent
active
051857014
ABSTRACT:
A method for determining frequency components present in a particular type of vehicle crash for which it is desirable to actuate a passenger restraint system in a vehicle of a predetermined class of vehicles is disclosed. The method comprises the steps of providing a time domain vibratory electric signal that is responsive to and that includes frequency component values indicative of a vehicle crash, crashing a vehicle of the predetermined class under at least one condition in which it is not desirable to actuate the vehicle passenger restaint system and recording an associated vibratory electric signal, crashing a vehicle of the predetermined class under at least one condition in which it is desirable to actuate the vehicle passenger restraint system, recording an associated vibratory electric signal, and performing a frequency domain transform function on the time domain recorded signals so as to identify frequency components for the electric signals recorded both crash conditions. The method further comprises the steps of comparing the frequency components for the crash conditions for which it is not desirable to actuate the passenger restraint system against the frequency components for the crash conditions for which it is desirable to actaute the passenger restraint system, and identifying frequency components present in crash conditions in which it is desirable to actuate the passenger restraint system and not present in the crash conditions in which it is not desirable to actuate the passenger restraint system.
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Blackburn Brian K.
Gentry Scott B.
Auchterlonie Thomas S.
Lall Parshotam S.
TRW Vehicle Safety Systems Inc.
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