Hybrid dual configuration transmission

摘要

A hybrid dual configuration transmission for a vehicle having an electric motor, planetary gear set and a plurality of gear meshes is disclosed herein. The hybrid dual configuration transmission provides for a plurality of electrically variable transmission operating modes and a plurality of fixed gear operating modes. The hybrid dual configuration transmission may be operated utilizing exclusively the electric motor, exclusively an engine, or any combination of the electric motor and engine.

主权项

1. A hybrid transmission comprising:
a transmission input shaft; an electric motor; planetary gear set coupled to said electric motor; a first clutch mechanism coupled to said planetary gear set; a second clutch mechanism coupled to said transmission input shaft and said planetary gear set; a first input shaft coupled to said planetary gear set; a second input shaft coupled to said second clutch mechanism; an output shaft; a first plurality of gears coupled to said output shaft; a second plurality of gears coupled to said output shaft; and a one way clutch, wherein said first input shaft is coupled to said first plurality of gears to provide a first plurality of gear ratios between said transmission imut shaft and said output shaft. said second input shaft is coupled to said second plurality of gears to provide a second plurality ofgear ratios between said transmission input shaft and said output shaft, said electric motor is coupled to a sun gear of said planetary gear set, said first input shaft is coupled to a carrier of said planetary gear set, said first clutch mechanism selectively couples said sun gear to a ring gear of said planetary gear set, said transmission input shaft is coupled to said ring gear, said second clutch mechanism selectively couples said transmission input shaft to said second input shaft, and said one way clutch couples said second clutch mechanism to a transmission housing and said one way clutch permits said second input shaft to rotate in a first direction but prevents said second input shaft from rotating in a second, opposite direction of rotation.