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1. (WO2018045146) ELECTRIC AXLE TRANSMISSION WITH A BALL VARIATOR CONTINUOUSLY VARIABLE PLANETARY TRANSMISSION WITH AND WITHOUT TORQUE VECTORING FOR ELECTRIC AND HYBRID ELECTRIC VEHICLES

Pub. No.:    WO/2018/045146    International Application No.:    PCT/US2017/049567
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Fri Sep 01 01:59:59 CEST 2017
IPC: B60K 1/00
B60K 17/02
B60K 17/04
F16H 15/40
F16H 15/52
F16H 15/28
Applicants: DANA LIMITED
Inventors: KUMAR, Krishna
MCINDOE, Gordon, M.
MILLER, Travis, J.
WALTZ, William, F.
WESOLOWSKI, Steven, J.
Title: ELECTRIC AXLE TRANSMISSION WITH A BALL VARIATOR CONTINUOUSLY VARIABLE PLANETARY TRANSMISSION WITH AND WITHOUT TORQUE VECTORING FOR ELECTRIC AND HYBRID ELECTRIC VEHICLES
Abstract:
An electric axle powertrains having a continuously variable electric drivetrain comprising a motor/generator and a ball-type continuously variable planetary having a first traction ring assembly and a second traction ring assembly in contact with a plurality of balls; a drive wheel axle operably coupled to the continuously variable electric drivetrain; and a first wheel and a second wheel coupled to the drive wheel axle. In some embodiments, the continuously variable electric drivetrains include one or more gear sets to provide power paths that reduce torque through the ball-type continuously variable planetary. In some embodiments, the continuously variable electric drivetrains include gearing configurations to reduce speed through the ball-type continuously variable planetary. In some embodiments, the electric axles are provided with gearing configurations that enable torque vectoring.