VERFAHREN ZUM BETREIBEN EINER ELEKTRISCHEN ANTRIEBSEINHEIT

摘要

An electric motor drive is provided with an anti-jamming protection. an excess force, which is the difference between a driving force and a friction force, is compared with a trigger threshold. To this end, the curve of the friction force of a present actuation of the drive, which actuation depends on the actuation path of the electrical drive unit is compared with the curve of the friction force of at least one previous actuation operation. Then a trigger threshold value is modified according to how the friction force curves of a present and at least one past actuation correspond to each other. These steps provide anti-jamming protection particularly for an electrical drive unit for window lifting drives.