Vehicle rollover detection method based on differential Z-axis acceleration

Vehicle rollover detection method based on differential Z-axis acceleration

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 (10) are filtered (34, 36) and differenced (72/88/92), and the differential acceleration is processed and compared to...

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Hauptverfasser: BROGOITTI, JAMES H, RICH, DAVID B, SCHUBERT, PETER J, ROBERTSON, JOHN W, CLUFF, CHARLES A, MANLOVE, GREGORY J
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
PERFORMING OPERATIONS
TRANSPORTING
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Zusammenfassung: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 (10) are filtered (34, 36) and differenced (72/88/92), and the differential acceleration is processed and compared to a calibrated threshold (78/90/96) to detect impending rollover. Separate algorithms (38, 40, 42) are employed to detect different categories of rollover events, and a sum of the z-axis acceleration measurements is used as a safing signal (44, 50).