Title: Analysis on temperature field of electromagnetic clutch of in-wheel motor for micro-electric vehicle

Authors: Qiping Chen; Hongyu Shu; Limin Chen; Wenbing Tu; Chuanjie Liao

Addresses: School of Mechanical and Electrical Engineering, East China Jiaotong University, Nanchang, 330013, China ' State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, 400044, China ' State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, 400044, China ' School of Mechanical and Electrical Engineering, East China Jiaotong University, Nanchang, 330013, China ' School of Mechanical and Electrical Engineering, East China Jiaotong University, Nanchang, 330013, China

Abstract: To improve the working performance and working life of electromagnetic clutch of in-wheel motor in micro-electric vehicle, an electromagnetic heat coupling analysis method is proposed. Mathematical model of electromagnetic clutch was established, all the losses were calculated, which were coupled to the temperature field as a heat source. Heat transfer parameters were analysed to determine the coefficient of thermal conductivity, convective heat transfer, equivalent radiation under the natural heat dissipation and fan heat dissipation. Joint calculation model of electromagnetic clutch was established, the temperature fields of the electromagnetic clutch were jointly simulated and analysed. The research results show that the development electromagnetic clutch can satisfy the brake system reliability requirement, only in the case of fan heat dissipation. The conformity of the test results with the final simulation results indicates that this method can be used to accurately and feasibly calculate and analyse the temperature field of electromagnetic clutch.

Keywords: micro-electric vehicles; electromagnetic clutch; in-wheel motors; temperature field; electric vehicles; electromagnetic heat coupling; mathematical modelling; thermal conductivity; convective heat transfer; equivalent radiation; natural heat dissipation; fan heat dissipation; simulation; brake system reliability.

DOI: 10.1504/IJEHV.2016.078351

International Journal of Electric and Hybrid Vehicles, 2016 Vol.8 No.2, pp.109 - 121

Received: 19 Dec 2015
Accepted: 14 Feb 2016
Published online: 15 Aug 2016 *

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