APPARATUS AND METHOD FOR DETECTING VEHICLE ROLLOVER HAVING ROLL-RATE SWITCHED THRESHOLD
A vehicle rollover event detector ( 10 ) includes an accelerometer ( 80 ) that senses vehicle acceleration in a direction offset from a front-to-rear axis of the vehicle ( 12 ) and provides an acceleration signal ( 101 ) indicative thereof. A rollover sensor ( 14 ) senses vehicle roll and provides a...
Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Format: | Patent |
| Sprache: | eng |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | A vehicle rollover event detector (
10
) includes an accelerometer (
80
) that senses vehicle acceleration in a direction offset from a front-to-rear axis of the vehicle (
12
) and provides an acceleration signal (
101
) indicative thereof. A rollover sensor (
14
) senses vehicle roll and provides a roll signal (
32
) indicative of vehicle roll about the front-to-rear axis of the vehicle. A controller (
26
) compares the roll signal (
32
) against a first rollover threshold (
42
) when the acceleration signal (
101
) is less than an acceleration threshold (
113
) and compares the roll signal (
32
) against a second rollover threshold (
116
) when the acceleration signal (
101
) is equal to or greater than the acceleration threshold (
113
) and for indicating a vehicle rollover condition when the roll signal is greater than the threshold (
42, 116
) it is compared against. |
|---|