Title: Investigation into the structure and transmission mechanism of a novel multistage face gear transmission based on battery discharge current constant of an electric vehicle

Authors: Xingbin Chen; Qingchun Hu; Zhongyang Xu; Xiaofeng Liang; Jianying Li; Qianli Mai; Chune Zhu

Addresses: School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, 510641, China ' School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, 510641, China ' School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, 510641, China ' Guangzhou Automobile Group Co. Ltd., Automotive Engineering Institute, Guangzhou, 510641, China ' School of Mechanical and Automotive Engineering, Zhaoqing University, Zhaoqing, Guangdong 526061, China ' School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, China ' Institute for Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China

Abstract: The performance and mileage of an electric vehicle (EV) are usually affected by battery capacity and transmission efficiency. We propose a novel power transmission device, which matches the dynamic performance of a vehicle under limited conditions, such as motor peak power and battery capacity, to ensure working in the constant battery discharge current and high efficiency. Based on the constant current discharge principle of power battery, aiming at the long driving distance of EV, the optimisation design model of structural parameters is established to yield the best transmission ratio and optimal detailed design parameters. We optimised the ADVISOR simulation to verify the speed regulated performance and drive efficiency of the whole transmission system.

Keywords: Peukert equation; face gear; transmission ratio; multistage; driving distance; battery capacity; constant current; transmission efficiency; dynamic performance.

DOI: 10.1504/IJVD.2019.111582

International Journal of Vehicle Design, 2019 Vol.81 No.3/4, pp.115 - 136

Accepted: 11 May 2020
Published online: 02 Dec 2020 *

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