Patent ID: 7466906

Claim:
A motor control apparatus comprising: a target value computation device for computing a target value of a current passed through a motor; a current detection device for detecting a current passed through the motor, to output a current value thereof; a command value computation device for computing a command value to the motor based on a deviation between the current target value computed by the target value computation device and the current value detected by the current detection device; a motor drive device for driving the motor based on the command value computed by the command value computation device; a boosting circuit which boosts a voltage supplied to the motor; a judgment device for judging whether or not the command value computed by the command value computation device exceeds a predetermined threshold; a rate-of-change computation device for computing a rate of change of the command value to time; and a boosting control device for controlling a boosting operation of the boosting circuit based on a judgment result by the judgment device and the rate of change of the command value computed by the rate-of-change computation device.