Method of controlling door movement.

摘要

The movement of a pair of sliding doors (2) is controlled by a drive system (9) with a control unit (11) depending on a curve that represents the door speed during the opening, closing and reversing processes. The drive system is a motor (3) with two belts (4,5). The door position sensor (8) works in conjunction with the roller (7) at the end of the horizontal belt. The curve of speed versus door position is a linear function of position cubed, position squared, position and a constant (ie four arbitrary constants in total) and there is a separate curve for opening and closing processes. A microcomputer (13) allows the algorithms to be input to the motor, the arbitrary constants being changed via a keyboard (15).