| 摘要 |
<p>A drive unit (A1, A2) for a movable member (29, 30) includes the movable member adjusting aerodynamic characteristics of a vehicle, an electric motor (M1, M2), preventing means (31) preventing the movable member (29, 30) from operating beyond a specified operating range, controlling means (B) supplying an electric power to the electric motor for a predetermined time and operating the movable member (29, 30) from a first end to a second end of the specified operating range, and abnormality determining means (34) measuring a time period from a start of a power supply to the electric motor (M1, M2) to a detection of a lock current generated at the electric motor (M1, M2) by a prevention of an operation of the movable member (29, 30) and determining that an abnormality is present at the movable member in a case where the measured time period deviates from a reference time range.</p> |
