Controlling an opening/closing member, eg a vehicle window

摘要

A drive control device for an opening/closing member is active to detect obstruction in the path of motion in one direction and control the member to move in the opposite direction for a predetermined distance if the member is in a monitoring zone. Timing functions T1 and T2 may ensure that the drive motor is not reversed if a predetermined time period has elapsed since it was stopped or is not started again in the one direction immediately after it has reversed. The operation is effective to compensate for overrun of the member caused by a lag between the initiation of a stopping signal and the instant when the actual motion of the member completely stops.