纯电动汽车车内中低频噪声优化研究  

Study on Optimization of Low Frequency Noise in Pure Electric Vehicles

作　　者：贾艳宾[1] 闫硕[1] JIA Yanbin;YAN Shuo

机构地区：[1]长城汽车股份有限公司技术中心/河北省汽车技术创新中心,保定071066

出　　处：《上海汽车》2021年第10期4-7,13,共5页Shanghai Auto

摘　　要：针对纯电动汽车车内中低频啸叫噪声问题,文章首先对电机激励源进行了分析,其次通过实车验证结构路径和空气路径对车内噪声的贡献,最终通过消除激励源的方法改善了车内噪声。研究结果表明:纯电动汽车车内中低频噪声既有结构路径贡献,也有空气路径贡献。Aiming at the problem of low frequency howling noise in the car of pure electric vehicles,firstly,the motor excitation source is analyzed,and secondly,the contribution of structure and air to the noise in car is verified through the real car,finally,the noise in car is solved by eliminating the excitation source.The results show that the low frequency noise in the pure electric vehicle has both structural path contribution and air path contribution.

关 键 词：中低频噪声 结构路径 空气路径 电动汽车 

分 类 号：U469.72[机械工程—车辆工程]