10.16638/jki.1671-7988.2020.02.005
分析及优化
朱建，吕运川，郑涛，刘超
（众泰汽车工程研究院，浙江杭州310000）
摘要：纯电动汽车永磁同步电机是影响整车的NVH性能主要激励源之一，通过对驱动电机定子的分析与优化，能有效降低电机谐频激励，减小电机振动，从而提高整车NVH舒适性。文章以一款纯电动车型为例，重点讲述通过测试排查减速能量回收车内啸叫问题，确认驱动电机24阶、48阶激励通过结构和空气传递到车内，引起车内中高频啸叫声，最终优化驱动电机定子绕组得以改善，达到优化车内噪声的目的，为纯电动汽车NVH性能开发和优化提供参考与借鉴。
关键词：纯电动汽车；驱动电机；能量回收；啸叫
中图分类号：U469.7 文献标识码：B 文章编号：1671-7988(2020)02-13-03
Analysis and Optimization of Whine Noise Caused by PMSM Motor of Electric Vehicle
Zhu Jian, Lv Yunchuan, Zheng Tao, Liu Chao
( Zotye Automotive Engineering Research Institute, Zhejiang Hangzhou 310000 )
Abstract:The PMSM motor of a electric vehicle is one of the most important incentive source to affect the NVH performance. By the analysis and optimization of the driving motor stator, the harmonic frequency excitation of the motor can be effectively reduced, and the motor vibration became lower, so as to improve the NVH performance of the vehicle This article takes a electric vehicle as an example, it focus on describing the troubleshooting process of a interior whine issue at deceleration energy recovery condition. It is confirmed that the 24th and 48th order excitations of the driving motor are transmitted to the interior vehicle by the structure and air transfer path, and it caused a high-frequency whine noise interior of vehicle. Finally, the stator windings of the drive motor were designed to improved and optimize the interior whine noise. It provides a reference for NVH performance development and optimization of electric vehicle.
Keywords: Electric vehicle; Driving motor; Energy recovery; Whine
CLC NO.: U469.7 Document Code: B Article ID: 1671-7988(2020)02-13-03
杭州电动汽车租赁前言
随着世界环境问题严峻化、国内汽车排放标准严格化，新能源电动汽车作为一种使用电能作为驱动能源的现代交通工具，将作为全球汽车工业当前和未来发展的重点。纯电动汽车使用电机作为动力源，是驱动整车行驶的核心部件。而永磁同步电机[1]（PMSM）因具有高功率密度、高效率、良好的转矩特性，以及结构简单、体积小、噪声振动低等特点，是目前纯电动汽车的主流选择。驱动电机转矩波动[2-3]将直接影响到车内噪声振动舒适性。本文以某纯电动汽车开发过程
作者简介：朱建，主管工程师，就职于众泰汽车工程研究院，研究
方向：汽车噪声振动。
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