METHOD FOR MONITORING AND CONTROLLING THE OPENING AND CLOSING PROCESS OF ELECTRICALLY POWERED UNITS

摘要

PCT No. PCT/EP96/00738 Sec. 371 Date Mar. 10, 1997 Sec. 102(e) Date Mar. 10, 1997 PCT Filed Feb. 22, 1996 PCT Pub. No. WO96/27229 PCT Pub. Date Sep. 6, 1996A system for monitoring and controlling the opening and closing of an electrically driven device, such as a window or a sliding roof of an automobile, contains various mechanical components and is equipped with an electrical servo motor which can be controlled by operating elements and a sensor device which are connected to an electronic control unit that processes signals under safety aspects and to which a power semiconductor is connected. To minimize the forces exercised on any trapped object, the rating of the servo motor is controlled by the power semiconductor so that the regulating speed of a servotransmission of the device can be adjusted during its adjustment range in dependence on specified positions of the device.