| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of times for making an initial setting by reducing an overrun angle of an electric motor during the timing from the stopping to the restarting of a motor control unit. SOLUTION: When the motor control unit 220 is stopped by a resetting signal transmitted from a reset determination circuit 240, a motor stopping circuit 212 is operated. As a result, the overrun angle can be decreased, therefore a difference between a rotational angle when the motor control unit 220 stops and that when it restarts can be reduced, and the number of times of setting the initial position can be reduced. Thus, increases in the sizes of a stopper 5a and an actuator 100 and in manufacturing cost can be restrained. COPYRIGHT: (C)2004,JPO
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