某乘用车驱动电机加速噪声分析与优化

微特电机 ›› 2023, Vol. 51 ›› Issue (3): 19-24.

某乘用车驱动电机加速噪声分析与优化

谢旭¹, 何兴凤¹, 吕浩华², 韦玲玲²

1.柳州铠玥科技有限公司,柳州 545616;
2.上汽通用五菱汽车股份有限公司,柳州 545005

收稿日期:2022-07-12 出版日期:2023-03-28 发布日期:2023-03-27
作者简介:谢旭(1991—),男,硕士,主要研究方向为汽车噪声与振动控制。

Passenger Car Drive Motor Acceleration Noise Analysis and Optimization

XIE Xu¹, HE Xingfeng¹, LÜ Haohua², WEI Lingling²

1. Liuzhou Kaiyue Technology Co.,Ltd.,Liuzhou 545616,China;
2. SATC-GM-Wuling Automobile Co.,Ltd.,Liuzhou 545005,China

Received:2022-07-12 Online:2023-03-28 Published:2023-03-27

摘要/Abstract

摘要： 针对某混合动力乘用车起步加速阶段车内存在明显啸叫噪声问题,通过整车试验和台架试验分析确定啸叫声来源于驱动电机。采用有限元方法分析电机气隙磁场分布,通过傅里叶变换对径向电磁力波进行时空分解得到径向力阶次分布特征,适当调整气隙长度和定子槽开口宽度,有效降低电磁力波幅值。对电机壳体进行加强筋条设计,提高壳体局部模态。试验验证结果表明,优化后的车内驱动电机48阶次声压级峰值下降明显,起步加速啸叫声基本消除,有效提升加速声品质。

关键词: 永磁同步电机, 径向电磁力, 模态优化, 乘用车, 有限元法

Abstract: Aiming at the problem of obvious whistling noise in the vehicle during the acceleration stage of a hybrid passenger vehicle, vehicle test and bench test were carried out, it was confirmed that the whistling noise of drive motor was the main influencing factor.The finite element method was used to analyze the magnetic field distribution of the air gap of the motor, and the radial electromagnetic force wave was decomposed in time and space by Fourier transform to obtain the radial force order distribution characteristics. The length of air gap and width of stator slot opening were appropriately adjusted to effectively reduce the electromagnetic force volatility value.The motor shell was designed with reinforcing ribs to improve the local mode of the shell. The final test results showed that after the implementation of the optimization scheme, the peak value of the 48th order drive motor noise in vehicle dropped significantly, the acceleration whistle noise was basically eliminated, and the acceleration sound quality was effectively improved.

Key words: permanent magnet synchronous motor, radial electromagnetic force, modal optimization, vehicle car, finite element method

中图分类号:

TM351

谢旭, 何兴凤, 吕浩华, 韦玲玲. 某乘用车驱动电机加速噪声分析与优化[J]. 微特电机, 2023, 51(3): 19-24.

XIE Xu, HE Xingfeng, LÜ Haohua, WEI Lingling. Passenger Car Drive Motor Acceleration Noise Analysis and Optimization[J]. Small & Special Electrical Machines, 2023, 51(3): 19-24.

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