A Topology-Based Approach to Improve Vehicle-Level Electromagnetic Radiation

Author:

Wu Cunxue,Gao FengORCID,Dai Hanzhe,Wang Zilong

Abstract

The popularity of the electric vehicle (EV) brings us many challenges of electromagnetic compatibility (EMC). Automotive manufacturers are obliged to keep their products in compliance with EMC regulations. However, the EV is a complex system composed of various electromagnetic interferences (EMI), sensitive equipment and complicated coupling paths, which pose great challenges to the efficient troubleshooting of EMC problems. This paper presents an electromagnetic topology (EMT) based model and analysis method for vehicle-level EMI prediction, which decomposes an EV into multi-subsystems and transforms electromagnetic coupling paths into network parameters. This way, each part could be modelled separately with different technologies and vehicle-level EMI was able to be predicted by algebra calculations. The effectiveness of the proposed method was validated by comparing predicted vehicle-radiated emissions at low frequency with experimental results, and application to the troubleshooting of emission problems.

Funder

Scientific Technological Plans of Chongqing

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Computer Networks and Communications,Hardware and Architecture,Signal Processing,Control and Systems Engineering

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1. Reduction of Electric Vehicle Electromagnetic Radiations Using a Global Network Model;Journal of Electromagnetic Engineering and Science;2023-07-31

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3. A Simulation for Parameters Extraction of Double-Layer Shielded Power Cable using FEA;2021 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC);2021-09-27

4. Model-Based Analysis and Improvement of Vehicle Radiation Emissions at Low Frequency;Applied Sciences;2021-09-06

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