Patent ID: 8708854

Claim:
A transmission assembly comprising: an input member; an output member; a stationary member; gearing operatively connected to the input member and the output member and configured to selectively provide a plurality of speed ratios between the input member and the output member, wherein the gearing includes a planetary gearset having first, second, and third members; and a torque transmitting system configured to rotate relative to the stationary member, the system including: a clutch housing rotatably mounted with respect to the stationary member; a first plurality of clutch plates operatively connected to the clutch housing; a second plurality of clutch plates operatively connected to the first member of the planetary gearset; a ramp member being selectively rotatable about an axis and defining a ramp surface, a drive member that is operatively connected to the ramp member for rotation therewith about the axis; an electric motor having a motor housing fixed to the stationary member and a stator that is configured to rotate relative to the motor housing, wherein the clutch housing is rotatable relative to the motor housing about the axis and is fixed to the stator for concurrent rotation therewith, and the motor is operatively connected to the drive member and configured to selectively apply torque thereto; and a roller element mounted with respect to the clutch housing and contacting the ramp surface; wherein the ramp surface is configured such that, when the ramp member is rotated about the axis, the roller element exerts a reaction force on the ramp surface that urges the ramp member to move in a first axial direction and thereby transmit the reaction force to the clutch plates.