Title: A hybrid electromechanical coupling system optimisation

Authors: Xuewu Liu; Jiangling Zhao; Zhuochao Liu; Xiangyang Xu; Hongzhong Qi; Yongming Zhu; Peng Dong; Shuhan Wang

Addresses: Department of Automotive Engineering, School of Transportation Science and Engineering, Beihang University, Beijing 100191, China; GAC Automotive Research and Development Center, Guangzhou 511434, China ' Department of Automotive Engineering, School of Transportation Science and Engineering, Beihang University, Beijing 100191, China; GAC Automotive Research and Development Center, Guangzhou 511434, China ' Department of Automotive Engineering, School of Transportation Science and Engineering, Beihang University, Beijing 100191, China ' Department of Automotive Engineering, School of Transportation Science and Engineering, Beihang University, Beijing 100191, China ' GAC Automotive Research and Development Center, Guangzhou 511434, China ' GAC Automotive Research and Development Center, Guangzhou 511434, China ' Department of Automotive Engineering, School of Transportation Science and Engineering, Beihang University, Beijing 100191, China ' Department of Automotive Engineering, School of Transportation Science and Engineering, Beihang University, Beijing 100191, China

Abstract: Hybrid electric vehicles cannot only save energy and reduce emissions, but also solve the range anxiety problem of electric vehicles, therefore becoming an important breakthrough direction of low-carbon vehicles. The electromechanical coupling system is an important part of hybrid electric vehicles, including the single-motor hybrid system, the series-parallel hybrid system, the power-split hybrid system, and other different routes. First, three basic configurations are established for the three technical routes respectively. Then, the optimal configuration of each basic configuration is obtained through optimisation analysis. Finally, the series-parallel technical routes are confirmed by comprehensive comparison, and the configuration design is carried out. This paper systematically describes the whole process of scheme design, which can provide reference for other automobile companies that develop electromechanical coupling systems for hybrid electric vehicles.

Keywords: hybrid electric vehicles; HEVs; electromechanical coupling system; basic configuration; optimal configuration; scheme optimisation.

DOI: 10.1504/IJPT.2023.134756

International Journal of Powertrains, 2023 Vol.12 No.3, pp.240 - 261

Received: 06 Nov 2021
Received in revised form: 27 Nov 2022
Accepted: 28 Nov 2022
Published online: 09 Nov 2023 *

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