Title: Design and analysis of outer-rotor in-wheel motor driving system of electric vehicle

Authors: Qiping Chen; Qiang Xiao; Changping Qiu; Sheng Kang; Juanlin Huang; Conghui Zhou

Addresses: Key Laboratory of Conveyance and Equipment Ministry of Education, East China Jiaotong University, Nanchang 330013, China ' Key Laboratory of Conveyance and Equipment Ministry of Education, East China Jiaotong University, Nanchang 330013, China ' Key Laboratory of Conveyance and Equipment Ministry of Education, East China Jiaotong University, Nanchang 330013, China ' Key Laboratory of Conveyance and Equipment Ministry of Education, East China Jiaotong University, Nanchang 330013, China ' Key Laboratory of Conveyance and Equipment Ministry of Education, East China Jiaotong University, Nanchang 330013, China ' Key Laboratory of Conveyance and Equipment Ministry of Education, East China Jiaotong University, Nanchang 330013, China

Abstract: To improve the working reliability and service life of the outer-rotor in-wheel motor of the electric vehicle, and based on the electric vehicle parameters and motion equations, the rated torque, rated efficiency and other performance parameters are determined. The internal dimensions of the in-wheel motor are designed according to the parameters of electric vehicle, including stator winding, air gap and permanent magnet, which are used to calculate the electromagnetic circuit and the electromagnetic parameters. The model of the in-wheel motor is established by Ansoft Maxwell software and the designed motor is analysed by the finite element analysis method. The magnetic field inside the in-wheel motor at different timings is analysed. The conformity of the simulation results and the design calculation results indicate that this method can be used to provide a theoretical basis to make further optimal design of the outer-rotor in-wheel motor driving system.

Keywords: electric vehicle; in-wheel motor; finite element method; Ansoft Maxwell; design.

DOI: 10.1504/IJEHV.2019.102865

International Journal of Electric and Hybrid Vehicles, 2019 Vol.11 No.4, pp.308 - 319

Received: 13 Nov 2018
Accepted: 21 Mar 2019
Published online: 08 Oct 2019 *

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