| 摘要 |
PROBLEM TO BE SOLVED: To provide a position control device capable of appropriately controlling an operation position of an actuator. SOLUTION: The device includes a relative position sensor detecting a relative movement position from a reference movement position of a control shaft of an operation angle change mechanism, and an electronic control unit including RAM storing the relative movement position detected by the sensor. Drive control of the motor is executed based on operation angle of an intake valve determined based on the relative movement position and the reference movement position. The electronic control unit includes SRAM storing operation conditions of the check flag. The check flag is a flag which is turned off when electric power supply to the SRAM is stopped (before t22, after t26). When the operation condition of the checker flag is changed from off to on (t22), learning of operation angle learning operation angle of the intake valve is executed. COPYRIGHT: (C)2009,JPO&INPIT
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