Electromechanical clutch and transmission

摘要

A transmission is provided having an input member, an output member, at least four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting mechanisms. Each of the planetary gear sets includes first, second and third members. The torque transmitting mechanisms include clutches and brakes actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio. An electromechanical rotating clutch assembly is provided that includes a rotor, an armature, and an electromagnetic coil. The electromagnetic coil is operable to selectively engage the rotor with the armature.

主权项

1. An automotive transmission comprising:
an input member; an output member; a plurality of planetary gear sets, each planetary gear set of the plurality of planetary gear sets having a plurality of rotatable members; a plurality of torque transmitting mechanisms each selectively engageable to interconnect at least one of the rotatable members of the plurality of rotatable members with one of a stationary member and at least one other of the rotatable members of the plurality of rotatable members, at least one of the torque transmitting mechanisms of the plurality of torque transmitting mechanisms being an electromechanical rotating clutch assembly comprising: a rotor coupled to one of a first rotatable member of the plurality of rotatable members and a stationary member; an armature coupled to one of a stationary member and another rotatable member of the plurality of rotatable members; and an electromagnetic coil, the electromagnetic coil being operable to selectively engage the rotor with the armature, wherein the plurality of torque transmitting mechanisms are selectively enqaqeable to establish a plurality of forward speed ratios and at least one reverse speed ratio between the input member and the output member.