1.广汽埃安新能源汽车股份有限公司;2.华南理工大学机械与汽车工程学院
1.GAC AION new energy automobile COLTD,Guangzhou;2.School of Mechanical Automotive Engineering,South China University of Technology
电动汽车的普及与发展给人们出行带来了极大的便利,与此同时,电磁兼容性问题也愈发被公众重视。电磁兼容性对于车辆可靠性具有重要作用,一旦出现故障极易引发安全问题。本文通过对不同工况下电驱系统的电磁兼容性能—辐射发射、传导电流及传导电压进行测试与优化,并对电磁干扰噪声耦合方式进行详尽的分析,通过优化滤波、屏蔽、接地和回路设计,最终实现对电驱系统电磁兼容性能的优化。研究结果表明,优化后的电驱系统在辐射发射、传导电流和传导电压等方面的电磁兼容性能得到了显著提升。该研究对于改善电驱的电磁兼容性能提供有力数据支撑,具有重要的指导意义。
The popularity and development of electric vehicles have greatly facilitated people’s transportation needs. However, the electromagnetic compatibility (EMC) issues in electric vehicles have also received increasing attention from the public. The EMC plays a vital role in ensuring the stability of vehicle control, as any faults in EMC can potentially lead to safety hazards. This paper aims to test and optimize the EMC performance of the electric E-axle drive under different operating conditions, including radiated emission, conducted current, and conducted voltage, while also analyzing the coupling of electromagnetic interference (EMI) noise. The ultimate goal is to achieve the optimization of the EMC performance of the electric E-axle drive. The research results demonstrate significant improvements in the EMC performance of the optimized electric E-axle drive in radiated emission, conducted current, and conducted voltage. This study provides strong support for improving the electromagnetic compatibility performance of E-axle drives and has important reference and guidance significance.
