Torque Split Dual-Clutch Transmission

摘要

A torque split dual-clutch transmission assembly is disclosed that splits the torque generated by an engine between at least two sets of transfer gears that are selectively coupled to first and second layshafts or intermediate shafts. A first input hub is connected to the first layshaft by a first clutch and a second input hub is connected to the second layshaft by a second clutch. A first gearset is carried on the first layshaft and a second gearset is carried on the second layshaft. Each set of transfer gears receives torque from either the transmission input shaft or the first and second layshafts in response to contemporaneous engagement of the first clutch and the second clutch, which can be used during vehicle launch to split the torque applied to the first and second clutches.

主权项

1. A torque split dual-clutch transmission assembly that splits torque generated by an engine of a vehicle, the dual-clutch transmission assembly comprising:
a transmission input shaft that receives torque from the engine of the vehicle; a transmission output shaft that supplies torque to drivetrain components of the vehicle; a first layshaft; a first input hub disposed adjacent said first layshaft; a second layshaft spaced from said first layshaft; a second input hub disposed adjacent said second layshaft; a first clutch disposed between and interconnecting said first input hub and said first layshaft, said first clutch selectively coupling rotation of said first input hub with rotation of said first layshaft; a second clutch disposed between and interconnecting said second input hub and said second layshaft, said second clutch selectively coupling rotation of said second input hub with rotation of said second layshaft; a first gearset rotatably coupled to and carried on said first layshaft that transfers torque between said first layshaft and said transmission output shaft; a second gearset rotatably coupled to and carried on said second layshaft that transfers torque between said second layshaft and said transmission output shaft; and at least two sets of transfer gears selectively coupled to and carried on said first and second input hubs respectively, each set of transfer gears receiving torque from said transmission input shaft in response to contemporaneous engagement of said first clutch and said second clutch to split the torque applied to said first and second clutches.