Method for detecting fault of vehicle motion sensors
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United States of America Patent
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Mar 13, 2001
Grant Date -
N/A
app pub date -
Dec 22, 1998
filing date -
Dec 22, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A method for detecting fault in vehicle motion sensors for a motor vehicle includes providing a measured lateral acceleration signal and yaw rate signal. The method further includes calculating, respectively, a first and second road bank angle estimate based on these signals. Also included is determining a first and second maximum road bank angle based on the first and second road bank angle, respectively, and calculating a first and second threshold based on these values. The method further includes comparing whether the first and second road bank angles exceeds the second and first thresholds, respectively, and if so, indicating either one or both a lateral acceleration signal fault or yaw rate signal fault.
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