Simulation and analysis of heat losses of in-wheel motor for micro-electric vehicles
by Qiping Chen; Qiang Xiao; Sheng Kang; Liping Zeng; Chuanjie Liao; Xiangqin Li
International Journal of Electric and Hybrid Vehicles (IJEHV), Vol. 10, No. 1, 2018

Abstract: Heat losses of in-wheel motor for micro-electric vehicles are computed and analysed, which can enhance the dependability, efficiency, safety and lifetime for in-wheel motor. The theory-practice combination method is adopted. The computational mathematics model of heat losses is set up, which is regarded as the study goal. The field-circuit coupling and the electromagnetic-thermal coupling model are regarded as the breakthrough point, and electromagnetic structures of in-wheel motor are systematically optimised. The control equations of incremental steps alternating solving multiple fields are calculated and analysed. An electromagnetic-thermal coupling calculation model is established. Calculation results are verified to illustrate heat losses principle and uncover the internal mechanism of electromagnetic-thermal coupling field for in-wheel motor. This paper will propose a complete set of integrated modelling method and coupling algorithm of electromagnetic-thermal coupling field, which can provide theoretical and technical support for improving in-wheel motor quality and property of micro-electric vehicles.

Online publication date: Fri, 06-Jul-2018

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