Patent ID: 7219571

Claim:
A transmission for a motor vehicle having an electro-mechanical gear actuation system for gear selection and gear engagement and disengagement, said transmission including: at least one input shaft; a counter shaft; a plurality of gear sets rotatively disposed on said at least one input shaft and said counter shaft, said gear sets adapted to be operatively engaged to and disengaged from the associated shafts; a plurality of synchronizers disposed between said gear sets, said synchronizers adapted to operatively engage and disengage said gear sets to and from the associated shafts; at least one shifter rail slidingly disposed within said transmission and including a plurality of shift forks, each said shift fork in operative engagement with at least one of said synchronizers, said shifter rail adapted to slidingly move and selectively cause one of said shift forks to move the associated synchronizer; a motor assembly supported within said transmission adjacent to said at least one shifter rail adapted to provide a first motive force to cause said at least one shifter rail to selectively engage one of said plurality of shift forks, said motor assembly further adapted to provide a second motive force to operatively drive said shifter rail to cause the associated shift fork and synchronizer to engage and disengage the associated gear set to and from the associated said shaft; and a solenoid assembly adapted to selectively control said gear actuation system so as to control when said motor assembly provides said first motive force and when said motor assembly provides said second motive force.