Method and apparatus for determining a vehicle pitch-over condition
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United States of America Patent
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Sep 23, 2014
Grant Date -
Apr 7, 2011
app pub date -
Jun 17, 2009
filing date -
Jun 18, 2008
priority date (Note) -
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Abstract
An apparatus for determining a pitch-over condition of a vehicle comprises a first accelerometer for sensing acceleration in a Z-axis direction substantially perpendicular to both a front-to-rear axis of the vehicle and a side-to-side axis of the vehicle and for providing a first acceleration signal indicative thereof. A second accelerometer for senses acceleration in an X-axis direction substantially parallel to said front-to-rear axis of the vehicle and provides a second acceleration signal indicative thereof. A controller determines a Z-axis velocity value from the first acceleration signal and a pitch-over condition of the vehicle in response to both the determined Z-axis velocity value and the second acceleration signal.
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