Electromotor drive, esp. for vehicle window

摘要

The electromotor drive is used for opening and closing of e.g. a window. The drive includes an anti-jam protection device. A sensor detects the rotation duration 1/n of the drive, esp. the electromotor axle. The anti-jam device is only switched on when the rotation duration changes irregularly. A microcontroller is used to control the opening or closing process of the drive and is also used to determine the duration of rotation, 1/n. A sensor detecting motor rpm is also included, and this sensor can be used to detect the duration of rotation.