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1. (WO2018108053) VEHICLE, SERIES-PARALLEL HYBRID POWER SYSTEM, AND METHOD FOR CONTROLLING HYBRID POWER SYSTEM

Pub. No.:    WO/2018/108053    International Application No.:    PCT/CN2017/115499
Publication Date: Fri Jun 22 01:59:59 CEST 2018 International Filing Date: Tue Dec 12 00:59:59 CET 2017
IPC: B60K 6/365
B60K 6/50
B60K 6/44
B60K 6/24
B60K 6/26
Applicants: ZHENGZHOU YUTONG BUS CO., LTD.
郑州宇通客车股份有限公司
Inventors: WANG, Yinshu
王印束
LIU, Xiaowei
刘小伟
WANG, Xing
王兴
WANG, Fusheng
王富生
Title: VEHICLE, SERIES-PARALLEL HYBRID POWER SYSTEM, AND METHOD FOR CONTROLLING HYBRID POWER SYSTEM
Abstract:
Disclosed are a series-parallel hybrid power system, a control method therefor, and a vehicle comprising the series-parallel hybrid power system. The series-parallel hybrid power system comprises a second electric motor (11), a speed change mechanism (9) connected to the second electric motor (11), and an engine (1), a first electric motor (4) and a system output shaft (12) coupled by means of a planetary gear mechanism (8). A gear shift device (10) is arranged between the system output shaft (12) and the second electric motor (11). The gear shift device (10) can realise a gear shift in the speed change mechanism (9) during the course of action. The series-parallel hybrid power system solves the technical problem in the prior art of a single mode of pure electric operation.