Vehicle rollover detection method based on differential z-axis acceleration
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United States of America Patent
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Issued Date -
Aug 17, 2006
app pub date -
Feb 11, 2005
filing date -
Feb 11, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Impending rollover events are detected based on differential z-axis (i.e., vertical) acceleration. Vertical or z-axis acceleration measured at laterally opposite sides of the vehicle are filtered and differenced, and the differential acceleration is processed and compared to a calibrated threshold to detect impending rollover. Separate algorithms are employed to detect different categories of rollover events, and a sum of the z-axis acceleration measurements is used as a safing signal.
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