Controller for electric power steering device
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United States of America Patent
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-
Mar 3, 2009
Grant Date -
Jan 11, 2007
app pub date -
May 14, 2004
filing date -
May 30, 2003
priority date (Note) -
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Abstract
A control apparatus of an electric power steering apparatus is provided in which a nonlinear element of a motor model of-the electric power steering apparatus is compensated beforehand to linearize the motor model and the back electromotive force of the motor is computed to compensate the back electromotive force for a control loop, and conduct back electromotive force compensation with no lag in order to realize a control apparatus of an electric power steering apparatus with less control error, stable controllability, small motor output torque ripple, good wheel steering feeling, and less motor noise.
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