电驱动NVH主观评价标准及应用  

Subjective Evaluation Criteria and Application of NVH for Electric Drives

作　　者：王卫红 邱文军 胡玉 Wang Weihong;Qiu Wenjun;Hu Yu

机构地区：[1]一汽-大众汽车有限公司,吉林长春130011

出　　处：《时代汽车》2024年第23期103-105,共3页Auto Time

摘　　要：本文介绍了新能源汽车电驱动领域NVH现状,详细阐述了一种电驱动NVH主观评价的方法,为其他需要NVH主观评价标准的机构提供方向及参考;并通过具体案例及测试分析的方法阐述了PWM谐波产生高频啸叫的机理及消除方法,介绍了傅里叶变换FFTvsTime时频图谱在NVH分析的应用。This paper introduces the current situation of NVH in the field of electric drive of new energy vehicles,and elaborates on a method for subjective evaluation of NVH of electric drive,which provides direction and reference for other institutions that need NVH subjective evaluation standards.Through specific cases and test analysis methods,the mechanism and elimination method of high-frequency acoustic noise generated by PWM harmonics are expounded,and the application of Fourier transform FFT vs Time spectrum in NVH analysis is introduced.

关 键 词：新能源汽车 电驱动 NVH 噪音 PWM 

分 类 号：U46[机械工程—车辆工程]