Transmission with substantially identical gear sets on intermediate shafts, for splitting torque loads

摘要

A transmission has an input member and an output member, first and second intermediate shafts having substantially identical gear sets with gears concentric with and selectively connectable for rotation with the first and second intermediate shafts, respectively. Output gears are concentric and rotatable with the output member and mesh with the substantially identical gear sets. First and second torque transfer devices are operable to transfer torque from the input member to the first and second intermediate shafts, respectively. Torque-transmitting mechanisms are mounted concentrically with, rotatable about a selectively engageable with the gears mounted on the intermediate shafts. A controller is operatively connected to the torque-transmitting mechanisms and to at least one of the torque-transmitting devices. The torque transmitting mechanisms and the torque transmitting devices may be engaged such that, during a gear established between the input member and the output member, torque is transported substantially equally by both intermediate shafts.