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1. (WO2018056230) ELECTRIC VEHICLE DRIVE DEVICE

Pub. No.:    WO/2018/056230    International Application No.:    PCT/JP2017/033587
Publication Date: Fri Mar 30 01:59:59 CEST 2018 International Filing Date: Sat Sep 16 01:59:59 CEST 2017
IPC: B60L 15/20
B60K 7/00
B60L 9/18
F16D 41/06
F16H 3/66
F16H 3/72
F16H 59/10
F16H 61/02
F16H 63/50
H02K 7/116
B60K 17/12
Applicants: NSK LTD.
日本精工株式会社
Inventors: MORITA, Ryuho
森田 竜峰
MATSUDA, Yasuyuki
松田 靖之
GUNJI, Daisuke
郡司 大輔
OIKE, Mitsuru
大池 充
YAMAMOTO, Shin
山本 慎
Title: ELECTRIC VEHICLE DRIVE DEVICE
Abstract:
This electric vehicle drive device comprises: a first motor; a second motor; a transmission mechanism connected to the first motor and the second motor; and a control unit for controlling the operation of the first motor and the second motor. The transmission mechanism comprises: a first planetary gear mechanism, a second planetary gear mechanism, and a one-way clutch that limits the direction of rotation of the first carrier of the first planetary gear mechanism to a predetermined direction of forward rotation. If the control unit rotates the first motor in the reverse direction of rotation to the predetermined direction of forward rotation and rotates the second motor in the direction of forward rotation, the control unit determines the rotational speeds of the first motor and the second motor within the range indicated by formula (1).