| 摘要 |
PROBLEM TO BE SOLVED: To prevent an increase in catching load near the fully closed position of a closer. SOLUTION: The closer is controlled such that in a normal determination area S1 it is driven at high velocity VH; in a low-velocity determination area S2 near a fully closed position, it s driven at low velocity VL; and in an inhibition area S3 just in front of the fully closed position, its velocity is reduced toward the fully closed position. A threshold Vd for the detection of anything caught in the closer is used and a determination is made as to whether or not something is caught in the closer after the time during which the speed of rotation is not more than the threshold Vd has exceeded a first determination time Td1, for the area S1, and after the time has exceeded a second determination area Td2, for the area S2. Since initial velocity is low in areas near the fully closed position, a decrease in velocity caused by the object caught in the closer can be reduced; even if the determination time during the period when the speed of rotation is not more than the threshold is extended in order to prevent errors in determination in front of the fully closed position which may be caused by an increase in friction due to secular deterioration, an increase in load can be prevented when a determination that something is caught in the closer is made. |
