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1. (WO2018144525) MULTI-SPEED ELECTRIC TRANSAXLE UNIT WITH CO-AXIAL SHAFTS

Pub. No.:    WO/2018/144525    International Application No.:    PCT/US2018/016121
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Thu Feb 01 00:59:59 CET 2018
IPC: B60K 1/00
B60K 17/08
B60K 17/16
B60K 17/02
F16H 3/00
Applicants: DANA HEAVY VEHICLE SYSTEMS GROUP, LLC
Inventors: LAFORCE, Nicholas W.
Title: MULTI-SPEED ELECTRIC TRANSAXLE UNIT WITH CO-AXIAL SHAFTS
Abstract:
A multi-speed transmission including an electric motor having a hollow rotor shaft disposed in an axle housing, a first planetary gear set, a second a planetary gear set, a third planetary gear set. The first planetary gear set is drivingly connected to the rotor shaft and a first transfer shaft. The second planetary gear set is drivingly connected to the first transfer shaft and a second transfer shaft and has ring gear selectively fixed to the axle housing. The third planetary gear set is drivingly connected to the first transfer shaft and an output gear and has a ring gear selectively fixed to the axle housing. Clutches are selectively engaged to rotationally fix the ring gears to the axle housing. The rotor shaft and first transfer shaft are coaxially with respect to each other and axle half shafts of a transaxle.