Vehicle rollover sensing using angular rate sensors
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United States of America Patent
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Mar 18, 2003
Grant Date -
Dec 5, 2002
app pub date -
May 29, 2001
filing date -
May 29, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A vehicle rollover sensor is provided for detecting an anticipated overturn condition of a vehicle. The rollover sensor includes a first angular rate sensor sensing attitude rate of change of a vehicle about a first axis and producing a first attitude rate of change signal. Also included is a second angular rate sensor sensing attitude rate of change of the vehicle about a second axis and producing a second attitude rate of change signal. The first and second angular rate sensors are located on a vehicle and arranged so that the first axis is different from the second axis. The rollover sensor further includes a rollover discrimination controller for determining a vehicle overturn condition based on the first and second sensed attitude rate of change signals. In addition, roll arming logic generates a roll arming signal based on the first and second sensed attitude rate of change signals.
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