VERFAHREN ZUR STEUERUNG EINER MOTORISCH ANGETRIEBENEN VERSTELLEINRICHTUNG

摘要

A method for controlling a synchronous motor driven adjustment device is used in motor vehicles by means of an electronic control, especially for controlling adjustment devices with an anti-trap protection and/or with an excess force limitation. The method includes evaluating variables correlating to the dynamics of the adjusting device or the position of the adjustment member and generating control signals based on the variables, controlling the adjustment rate of the adjustment member to a constant value, and setting a phase displacement between an exciting field and a rotating field of the motor to provide torque to the drive unit based on the load angle at which the torque reaches a maximum.