汽车工程师2025，Issue(1) ：32-36.DOI:10.20104/j.cnki.1674-6546.20240331

新能源汽车用动力电池继电器噪声分析与优化研究

Research on Noise Analysis and Optimization of Power Battery Relays for New Energy Vehicles

李基芳 季祥 孙守富
汽车工程师2025，Issue(1) ：32-36.DOI:10.20104/j.cnki.1674-6546.20240331
✕
  • 维普
  • 万方数据

新能源汽车用动力电池继电器噪声分析与优化研究

Research on Noise Analysis and Optimization of Power Battery Relays for New Energy Vehicles

李基芳 1季祥 1孙守富1
扫码查看

作者信息

  • 1. 中汽研新能源汽车检验中心(天津)有限公司,天津 300300
  • 折叠

摘要

针对某新能源汽车动力电池继电器吸合、断开过程中噪声较大的问题,在半消声室内对继电器噪声的传递路径进行贡献量测试分析,结果显示,结构传递路径贡献量高于70%,并提出降低电池配电单元(BDU)安装点橡胶隔振垫硬度和在动力电池上盖板粘贴阻尼材料的优化方案,实车验证结果表明,优化后继电器吸合、断开噪声声压级分别降低3.9 dB(A)、4.1 dB(A),车内继电器噪声问题明显改善.

Abstract

The noise generated during the relays pick-up and disconnection of the power battery for a new energy vehicle is significant.To address the issue,the contribution of the relay noise transfer path is tested and analyzed in a semi anechoic chamber,and the results show that the contribution of the structural transfer path is higher than 70%.The paper proposes to reduce the hardness of the rubber vibration isolation pad at the Battery Distribution Unit(BDU)mounting point and past the damping material on the cover plate of the power battery.Vehicle verification results show that the sound pressure level of the optimized relay pick-up and disconnection noise is reduced by 3.9 dB(A)and 4.1 dB(A)respectively,and the noise of relays in the vehicle is improved significantly.

关键词

动力电池/继电器/噪声/传递路径/隔振/阻尼材料

Key words

Power battery/Relay/Noise/Transfer path/Vibration isolation/Damping material

引用本文复制引用

出版年

2025
汽车工程师
天津市汽车工程学会 天津市汽车研究所

汽车工程师

影响因子：0.226
ISSN：1674-6546
段落导航相关论文