Patent ID: 8469855
Filing Date: 2013-06-25
Classification: F16H

Abstract:
1. A multi-speed transmission module comprising: an input member; an output member; a planetary gear set having a first member, a second member, and a third member; wherein the input member is operatively connected for common rotation with the first member and the output member is operatively connected for common rotation with the second member; a torque-transmitting mechanism engageable to connect the first member for common rotation with the second member; a centripetal member configured to apply a first axial force urging engagement of the torque-transmitting mechanism, the first axial force increasing as the speed of the output member increases; an actuator connected for rotation with the input member and operable to move axially when torque is applied at the input member; wherein the actuator is configured to apply a second axial force opposing engagement of the torque-transmitting mechanism; and wherein the second axial force is proportional to torque at the input member and is applied whether the torque-transmitting mechanism is engaged or disengaged; the transmission module thereby providing a first speed ratio between the input member and the output member determined by the planetary gear set when the torque-transmitting mechanism is disengaged and providing a direct drive speed ratio when the torque-transmitting mechanism is engaged.