| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately control a stop position of a motor by efficiently driving the motor even when the motor is duty-controlled. <P>SOLUTION: An actuator 2 activating a transfer 1 comprises a motor 11 generating a power for switching a drive condition of a vehicle, and a rotary position sensor 21 rotated in combination with an output shaft of the power of the motor 11 and generating position sensor signals corresponding to a drive condition of the transfer 1. A CPU 33 is equipped with a current detecting circuit 36 detecting a current value supplied to the motor 11, and decelerates a rotation speed of the motor 11 by duty-controlling an electric power supplied to the motor 11 when a current value detected by the current detecting circuit 36 is lowered by a predetermined value after current supply to the motor 11 is started. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
