Patent ID: 7544143
Filing Date: 2009-06-09
Classification: B60N,F16H,H02K

Abstract:
1. A drive unit of an adjuster for a vehicle, the drive unit comprising: an electronically commutated motor including at least a switchable planetary differential gear, wherein the rotor is borne by the switchable planetary differential gear, the switchable planetary differential gear is a friction-wheel type of gear stage that includes rollers, and each of the rollers is independently selected from the group consisting of solid rollers and hollow rollers, the switchable planetary differential gear and the motor are cooperatively associated with one another at least for making use of at least one difference to provide rotation of an output component of the switchable planetary differential gear about an axis, the at least one difference is selected from the group consisting of a difference in speed of rotation and a difference in direction of rotation, the switchable planetary differential gear is operative at least so that at least two different features of the switchable planetary differential gear can be switchably locked, and each of the at least two different features is independently selected from the group consisting of outer rings of the switchable planetary differential gear and sun wheels of the switchable planetary differential gear.