Title: Simulation and analysis of the surface current from automotive ignition system radiation

Authors: Yali Zheng; Shuli Zheng; Quandi Wang

Addresses: State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Room 423, University A Campus, No. 174, Shazhengjie Street, Shapingba District, Chongqing 400044, China ' State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Room 423, University A Campus, No. 174, Shazhengjie Street, Shapingba District, Chongqing 400044, China ' State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Room 423, University A Campus, No. 174, Shazhengjie Street, Shapingba District, Chongqing 400044, China

Abstract: To research the electromagnetic interference (EMI) generated by the car shell surface current, a simulation method is proposed in this paper, taking the surface current from the automotive ignition system electromagnetic radiation (EMR) for example. The method is based on the interface condition theory and skin effect. In high-frequency, the shell current is mainly distributed on the body surface, and body surface magnetic field is approximated as the same value as the surface current density. Then, an automotive ignition system EMR emission model is established in HFSS software. Finally, the surface current density distribution and its effect on the radiation field are simulated and analysed. By analysing the characteristics of the surface current density distribution, some proposals can be obtained for electromagnetic compatibility (EMC) design.

Keywords: automotive shell surface; EMI; electromagnetic interference; EMR; electromagnetic radiation; EMC; electromagnetic compatibility; vehicle ignition systems; surface current; simulation; interface condition theory; skin effect.

DOI: 10.1504/IJEHV.2013.059366

International Journal of Electric and Hybrid Vehicles, 2013 Vol.5 No.4, pp.317 - 326

Received: 14 Jun 2013
Accepted: 22 Jul 2013
Published online: 18 Feb 2014 *

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