| 摘要 |
<p>In the present invention, a grill shutter device is provided with the following: a shutter mechanism that opens and closes; a motor that is the shutter mechanism drive source; and a control unit that controls the operation of the shutter mechanism. The control unit measures an operation time during which operation control of the shutter mechanism is executed and a suspension time during which operation control of the shutter mechanism is not executed, and maintains a preceding operation time and a preceding suspension time. Further, on the basis of the preceding operation time and the preceding suspension time, the control unit sets a necessary suspension time that follows operation control completion. Also, the control unit is configured so that until the necessary suspension time has elapsed, no operation control is newly started.</p> |
