Controller for electric power steering device
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United States of America Patent
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Jul 14, 2009
Grant Date -
Jan 4, 2007
app pub date -
Aug 26, 2004
filing date -
Aug 28, 2003
priority date (Note) -
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Abstract
The present invention provides a controller of an electric power steering device which does not apply an uncomfortable feeling to a operation of steering wheel while securing a fault determination confirming period enough long to prevent an erroneous detection of a torque sensor fault, and can secure a safety operation of steering wheel, even in the case that an output value of a torque sensor detecting a steering torque of a steering wheel becomes abnormal.
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