Multi-mode hybrid electric transfer case for four-wheel drive vehicle

摘要

A hybrid transfer case can include first and second output shafts adapted for connection to respective rear and front drivelines, a first input shaft adapted for connection to a transmission and for selective connection to the first output shaft, and a second input shaft that can be rotatably supported on the first input shaft and selectively connected to the first output shaft. The transfer case can further include a planetary gearset, a transfer system and an electric motor/generator. The planetary gearset can include a first member fixed for rotation with the first input shaft, a second member fixed for rotation with the second input shaft, and a third member. The transfer system can couple the second input shaft to the second output shaft, and the electric motor can selectively drive the third member.

主权项

1. A transfer case for a vehicle having an engine, a transmission, and front and rear drivelines, comprising:
a first output shaft adapted for connection to the rear driveline; a second output shaft adapted for connection to the front driveline; a first input shaft adapted for connection at a first end to the transmission, and for selective connection at a second end to the first output shaft; a second input shaft rotatably supported on the first input shaft for rotation relative hereto, the second input shaft adapted for selective connection to the first output shaft; a planetary gear set having a first member fixed for rotation with the first input shaft, a second member fixed for rotation with the second input shaft, and a third member; a transfer system rotatably coupling the second input shaft to the second output shaft; and an electric motor for selectively driving the third member.