Apparatus and method for detecting vehicle rollover having roll-rate switched threshold
The present invention relates to an occupant protection system and, more particularly, to an apparatus and method for detecting a vehicle rollover event for use with an actuatable occupant rollover protection device. A vehicle rollover event detector () includes an accelerometer () that senses vehic...
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Sprache: | eng |
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Zusammenfassung: | The present invention relates to an occupant protection system and, more particularly, to an apparatus and method for detecting a vehicle rollover event for use with an actuatable occupant rollover protection device.
A vehicle rollover event detector () includes an accelerometer () that senses vehicle acceleration in a direction offset from a front-to-rear axis of the vehicle () and provides an acceleration signal () indicative thereof. A rollover sensor () senses vehicle roll and provides a roll signal () indicative of vehicle roll about the front-to-rear axis of the vehicle. A controller () compares the roll signal () against a first rollover threshold () when the acceleration signal () is less than an acceleration threshold () and compares the roll signal () against a second rollover threshold () when the acceleration signal () is equal to or greater than the acceleration threshold () and for indicating a vehicle rollover condition when the roll signal is greater than the threshold () it is compared against. |
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