System and method for detecting roll rate sensor fault
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United States of America Patent
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Sep 19, 2006
Issued Date -
N/A
app pub date -
Dec 22, 2003
filing date -
Aug 1, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A control system for an automotive vehicle having a vehicle body includes a sensor cluster having a housing oriented within the vehicle body. A roll rate sensor is positioned within the housing and generates a roll rate sensor signal corresponding to a roll angular motion of the sensor housing. A controller receives the roll rate sensor signal, the controller generates a residue signal in response to a sensor error or a measurement error. The controller sets a fault condition in response to the residue signal larger than a dynamic threshold and a magnitude of the roll rate signal above a fault condition threshold. The controller sets a fault flag in response to the fault condition indicated for a predetermined time during which no double wheel lift occurs.
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