Actuator, especially for operating coupling and/or gearbox, has D.C. motor with field magnets of magnetic material with at least one component from rare earth metal group

摘要

The device has at least one actuator drive (11), a driven element (13), a movement converter (12) for converting a drive force into an actuating force and a controller (14) for driving at least one actuator drive. The actuator drive is a D.C. motor with field magnets of magnetic material with at least one component of the material being from the rare earth metal group. . Independent claims are also included for the following: the use of a brushless D.C. motor and a method of controlling an actuator drive.