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Title:
ELECTRIC VEHICLE AND DUAL-MOTOR PLANET GEAR POWER TRANSMISSION SYSTEM THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/161738
Kind Code:
A1
Abstract:
Disclosed are an electric vehicle and a dual-motor planet gear power transmission system thereof. The dual-motor planet gear power transmission system mainly comprises two identical power transmission subsystems. Each power transmission subsystem includes an electric motor (210, 220) and a reducer (120, 130) arranged on an auxiliary frame, and the electric motor is connected to an axle shaft (300, 400) of the electric vehicle via the reducer such that wheels can be driven to rotate. The reducer mainly includes a single-stage cylindrical gear reduction mechanism and a planet gear reduction mechanism in driving connection with each other, the two reduction mechanisms enable the reducer to gain a high reduction ratio as well as a compact layout space, and therefore, the electric vehicle can gain a better low-speed performance.

Inventors:
KE, Feng (Building 20, No. 56 AnTuo Road AnTing Town, Jiading District, Shanghai 4, 201804, CN)
SHI, Kai (Building 20, No. 56 AnTuo Road AnTing Town, Jiading District, Shanghai 4, 201804, CN)
CHAI, Shaobiao (Building 20, No. 56 AnTuo Road AnTing Town, Jiading District, Shanghai 4, 201804, CN)
LIU, Shunlong (Building 20, No. 56 AnTuo Road AnTing Town, Jiading District, Shanghai 4, 201804, CN)
Application Number:
CN2019/074415
Publication Date:
August 29, 2019
Filing Date:
February 01, 2019
Export Citation:
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Assignee:
NIO NEXTEV LIMITED (30th Floor Jardine House One Connaught Place Central, Hong Kong, Kong, CN)
International Classes:
B60K1/02; B60K17/04; F16H37/04; F16H57/10
Foreign References:
CN101519040A2009-09-02
CN108528186A2018-09-14
CN102848908A2013-01-02
CN206600423U2017-10-31
CN1603153A2005-04-06
CN206889591U2018-01-16
US7866432B22011-01-11
Attorney, Agent or Firm:
HANRAY LAW FIRM (712A, Century Square99 Wangfujing Street, Dongcheng, District, Beijing 6, 100006, CN)
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