作者：曾博, 邓俊泳, 林道祺, 林青, 刘国荣

作者单位：中国电器科学研究院有限公司, 广东 广州 510275

关键词：电动汽车;动态工况;特征频率提取;发射值测量

摘要：

针对电动汽车高度集成的电力驱动系统可能带来电磁兼容性问题，讨论国际上现行电动汽车电磁干扰（electromagnetic interference，EMI）测试标准中汽车工作状况设置，指出动态车辆工况设置及测试方法研究的必要性。并设计动态车辆工况信息直接、间接测量方案，实时获取车速V、负载扭矩TV、制动力FS参数信息；其次，提出在动态车辆工况下特征频率提取采用实时频谱分析仪，最大发射值测量采用接收机的EMI测试方法；最后，提出读写时间戳法，实现动态车辆工况信息、EMI测试数据匹配。该集成方案可实现电动汽车动态工况下的EMI测试，且测试数据时间戳无累计误差。

Technology requirement and scheme design for electric vehicle EMI measurements in transient condition

ZENG Bo, DENG Junyong, LIN Daoqi, LIN Qing, LIU Guorong

China National Electric Apparatus Research Institute Co., Ltd., Guangzhou 510275, China

Abstract: For highly integrated electric drive system of electric vehicle could lead to the electromagnetic compatibility problem, the vehicle conditions precepts of current international electric vehicle electromagnetic interference(EMI) measurements standard were discussed. It was necessary to study the transient condition of the vehicle design and test method. On this purpose, direct and indirect real-time measurement methods for transient vehicle conditions information were put forward, and the vehicle speed, load torque and braking force were acquired in real time. EMI measurements method for transient vehicle conditions was also proposed, which characteristic frequency was test by real-time spectrum analyzer and emission was measured by receiver. In order to matching transient vehicle conditions information and EMI measurement data, a read/write timestamp method was present. The discussion shows that integration scheme can realize electric vehicle EMI measurements in transient condition. There is no accumulated error from the read/write timestamp matching method.

Keywords: electric vehicle;transient condition;characteristic frequency extraction;emission measurement

2017, 43(11): 8-11  收稿日期: 2017-02-11;收到修改稿日期: 2017-03-24

基金项目: 广州市科技计划项目（201504010037）

作者简介: 曾博(1981-),男,湖北公安县人,工程师,硕士,主要从事电磁兼容检测技术研究。

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