Vehicle occupant protection system and method utilizing Z-axis central safing
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jun 19, 2001
Grant Date -
N/A
app pub date -
May 19, 2000
filing date -
May 19, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A vehicle occupant protection system (10) includes an actuatable device (e.g., 20) for protecting a vehicle occupant (12). An accelerometer (e.g., 50) and a crash determination portion (66) of a controller (56) derive a first metric indicative of a vehicle crash condition. A Z-axis accelerometer (54) and a safing portion (50) of the controller (38) derive a second metric indicative of a vehicle vertical acceleration characteristic. The controller (66) actuates the device (e.g., 16) to protect the occupant (12) in response to the first metric indicating a vehicle crash condition and the second metric exceeding a predetermined threshold. Preferably, the system (10) includes a second device (e.g., 18) and another accelerometer (e.g., 58) and another crash determination portion (72) of the controller (56) to derive a third metric indicative of a vehicle crash condition. The controller (66) actuates the device (e.g., 18) to protect the occupant (12) in response to the third metric indicating a vehicle crash condition and the second metric exceeding a predetermined threshold. Thus, the second metric is utilized twice.
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Cited Art Landscape
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