Land vehicles – Wheeled – Attachment
Patent
1994-01-04
1996-03-12
Tyson, Karin L.
Land vehicles
Wheeled
Attachment
B60R 2132
Patent
active
054980283
ABSTRACT:
An apparatus (30) for controlling an actuatable restraining device includes an accelerometer (60) for providing an electrical deceleration signal having a characteristic indicative of vehicle deceleration. An electronic controller (64) is connected to the accelerometer (60) and determines an average crash acceleration (AWIN) value in response to deceleration during a vehicle crash condition. The controller (64) determines a crash velocity value and a variably weighted velocity value (JMM2) equal to crash velocity times a variable weighting factor. The controller (64) provides an actuation signal to actuate the actuatable restraining device (i) when the average velocity value (AWIN) is greater than a first threshold value (WTHRESH) or (ii) when the variably weighted velocity value (JMM2) is greater than a second threshold value (JTHRESH) and the crash velocity is greater than a third threshold value (VTHRESH).
REFERENCES:
patent: 4975850 (1990-12-01), Diller
patent: 5040118 (1991-08-01), Diller
patent: 5067745 (1991-11-01), Yoshikawa
patent: 5216607 (1993-06-01), Diller et al.
patent: 5363302 (1994-11-01), Allen et al.
Carlin Mark
McCuskey James G.
Sugiyama Koichi
Toyota Jidosha & Kabushiki Kaisha
TRW Inc.
Tyson Karin L.
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