DOOR DRIVE SYSTEM

摘要

A door drive system for a sliding door includes a pair of pulleys; a drive belt on the pulleys; a drive shaft engaged with the drive belt; a rotary motor for rotating the drive shaft to translate the drive belt; and a door drive arm for mounting on a sliding door and interconnected with the drive belt for driving the sliding door between open and closed positions; and a door drive control system including a position sensor for sensing the position of the sliding door, a controller responsive to the position sensor for setting the speed, torque and acceleration of the motor in the opening and closing modes, and an obstruction detecting device for enabling the controller to interrupt motion of the sliding door in the opening and closing modes upon detection of an obstruction in the path of the sliding door.