纯电动汽车减速器噪声优化研究

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英文篇名：Study on Noise Optimization of Reducer of Pure Electric Vehicle 作者：闫硕 ; 王宏伟 英文作者：Yan Shuo;Wang Hongwei;School of Mechanical and Electrical Engineering,Hebei University of Engineering;Great Wall Motors Corporation R&D Center,Hebei Automobile Engineering Technology Research Center; 关键词：电动汽车 ; 啸叫噪声 ; 传递路径分析 英文关键词：electric vehicle;;whine noise;;transfer path anslysis 中文刊名：CQGZ 英文刊名：China Auto 机构：河北工程大学机械与装备工程学院;长城汽车股份有限公司技术中心河北省汽车工程技术研究中心; 出版日期：2019-07-15 出版单位：中国汽车 年：2019 期：No.328 语种：中文; 页：CQGZ201907015 页数：5 CN：07 ISSN：12-1184/U 分类号：51-55

摘要

针对纯电动汽车减速器噪声突出问题,对减速器啸叫产生机理进行了分析,以传递路径分析的思路对噪声进行了分析;对减速器高阶次啸叫从降低激励源方向进行了优化,对减速器低阶次啸叫通过优化路径上的共振解决;最后将优化方案进行实车验证,结果表明,车内22阶噪声在车速50-20Km/h平均降低7.2 dB (A),车内8.58阶噪声在车速80-90Km/h峰值降低5.1 dB(A),达到上市要求。
        Aiming at the prominent problem of gear reducer noise in pure electric vehicles, the mechanism of gear reducer screaming is analyzed, and the noise is analyzed with the train of thought of transmission path analysis. The high-order noise of the reducer was optimized from the direction of reducing the excitation source, and the low-order noise of the reducer was solved by resonance in the optimized path. At last, the optimized scheme is verified by real cars. The results show that the average reduction of 22 th order noise in the car is 7.2 db(A) at the speed of 50-20 km/h, and the peak reduction of 8.58 th order noise at the speed of 80-90 km/h is 5.1 db(A), which meets the requirements of the market.

引文

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