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1. (WO2018077269) POWER TRAIN AND VEHICLE HAVING SAME

Pub. No.:    WO/2018/077269    International Application No.:    PCT/CN2017/108362
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Tue Oct 31 00:59:59 CET 2017
IPC: B60W 20/00
Applicants: BYD COMPANY LIMITED
比亚迪股份有限公司
Inventors: LING, Heping
凌和平
ZHAI, Zhen
翟震
HUANG, Wei
黄威
XU, Youbin
徐友彬
Title: POWER TRAIN AND VEHICLE HAVING SAME
Abstract:
Disclosed are a power train and a vehicle having same. The power train (1000) comprises: a power source (100); a first motor-generator unit (300); a system power output portion (401); and a mode switching device (402), the mode switching device (402) comprising: an input portion (4020), a first switching portion (4021a), a second switching portion (4021b) and an output portion (4022). The output portion (4022) is connected to an input end of the system power output portion (401). The input portion (4020) is adapted to output the power from at least one of the power source (100) and the first motor-generator unit (300). The input portion (4020) selectively engages with one of the first switching portion (4021a) and the second switching portion (4021b). The first switching portion (4021a) and the second switching portion (4021b) are both in cooperative transmission with the output portion (4022). The input portion (4020) engages with the second switching portion (4021b), such that the rotation speed output by the input portion (4020) is reduced before being output to the input end of the system power output portion (401). In this way, driving modes of a vehicle can be enriched, and the vehicle can be adapted to different road conditions.