This article presents measured results carried out inside an automotive EMC semianechoic chamber of test methodologies that assess the radiated emissions of a plug-in hybrid vehicle (PHEV) under dynamic drive conditions including acceleration, deceleration and different constant speeds. On the contrary, existing automotive EMC test methods applied as per UNECE Regulation 10 and CISPR 12, concerning the radiated emissions of vehicles, consider fixed laboratory setups and vehicle drive conditions. Test parameters, such as 360° azimuth scan around the vehicle, antenna height scan and broadband versus fixed-frequency measurement techniques based on a single vehicle demonstrate that actual radiated emissions can be higher than those in fixed laboratory configurations prescribed on existing standards. Next to this, measurements that associate the time-dependence of the electromagnetic emissions with vehicle's parameters such as velocity and power from the (electric) traction battery are analyzed and discussed. Furthermore, results of radiated emissions below 30 MHz and above 1 GHz, which are not obligatory during vehicle EMC testing, are outlined. The EMC test methodologies discussed in this work can assist the EMC troubleshooting of vehicles and help to quickly identify the critical area(s) around the vehicle that contribute to the generated electromagnetic interference.

中文翻译：

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在动态驾驶条件下评估车辆的电磁辐射

本文介绍了在汽车 EMC 半消声室内进行的测试方法的测量结果，这些测试方法评估了插电式混合动力汽车 (PHEV) 在动态驱动条件下的辐射发射，包括加速、减速和不同的恒定速度。相反，根据 UNECE 第 10 条和 CISPR 12 应用的现有汽车 EMC 测试方法，关于车辆的辐射排放，考虑固定的实验室设置和车辆驱动条件。测试参数，例如车辆周围的 360° 方位角扫描、天线高度扫描和基于单个车辆的宽带与固定频率测量技术，表明实际辐射发射可能高于现有标准规定的固定实验室配置中的辐射发射。在这旁边，分析和讨论了将电磁辐射的时间依赖性与车辆参数（例如速度和（电动）牵引电池的功率）相关联的测量。此外，还概述了低于 30 MHz 和高于 1 GHz 的辐射发射结果，这些结果在车辆 EMC 测试期间不是强制性的。本工作中讨论的 EMC 测试方法可以帮助对车辆进行 EMC 故障排除，并有助于快速识别车辆周围导致产生电磁干扰的关键区域。概述了在车辆 EMC 测试期间不是强制性的。本工作中讨论的 EMC 测试方法可以帮助对车辆进行 EMC 故障排除，并有助于快速识别车辆周围导致产生电磁干扰的关键区域。概述了在车辆 EMC 测试期间不是强制性的。本工作中讨论的 EMC 测试方法可以帮助对车辆进行 EMC 故障排除，并有助于快速识别车辆周围导致产生电磁干扰的关键区域。