ELECTRIC POWER STEERING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an electric power steering device giving the favorable feeling of steering to an operator without generating vibration or an abnormal sound from a motor even if a current command value in each phase for driving the motor is at a zero cross.

SOLUTION: A dead time compensation computing means does not carry out dead time compensation for compensating a dead time by the addition or subtraction of a dead time compensation amount when each phase current command value is in a prescribed range including a zero value, but increases a feedback gain used for current feed back control compared with a gain when each phase current command value is out of the prescribed range.

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