Method for managing faults in a magneto-rheological hydraulic power steering system
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United States of America Patent
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Mar 5, 2013
Grant Date -
May 24, 2012
app pub date -
Jan 31, 2012
filing date -
Mar 27, 2009
priority date (Note) -
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Abstract
A system and method for managing faults occurring in a power steering system in a vehicle is disclosed that has particular application for an MRHPS system to provide reliable functioning of the power steering system. The method includes detecting a fault condition in the MRHPS system and selecting a safe mode from a plurality of predetermined safe modes based on the fault condition. The plurality of predetermined safe modes include a normal operation mode, an engine speed follow mode, a manual mode, a fixed duty cycle mode and a voltage control mode. If a fault condition is detected, the method applies the safe mode to manage the fault condition.
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