汽车电磁兼容中的建模挑战  

Modeling Challenges in Automotive EMC

作　　者：范峻 Hongseok Kim 蒲菠(译) Fan Jun;Hongseok Kim;Pu Bo

机构地区：[1]密苏里科技大学电磁兼容中心 [2]宁波德图科技有限公司

出　　处：《安全与电磁兼容》2021年第6期9-14,共6页Safety & EMC

摘　　要：随着汽车向智能化和互联化发展,汽车电磁兼容性(EMC)变得越来越重要。相较于传统的在最后阶段解决电磁兼容问题,将EMC设计和风险控制纳入早期设计阶段至关重要,可以有效实现这一目标的仿真技术也变得愈发关键。通过仿真还可以研究许多电磁兼容问题,如模块级和系统级的电磁干扰(EMI)测试的不一致问题。但由于计算资源、计算机算法的限制以及关键信息的缺乏,汽车电磁兼容的仿真往往具有很大的挑战性。本文以电机驱动系统对安装在混合动力电动汽车(HEV)上的射频天线的射频干扰为例,说明了混合动力车辆级仿真面临的挑战,提出了一种分而治之的解决方案,并验证了其有效性。Automotive electromagnetic compatibility(EMC)becomes increasingly important with the trend of vehicles moving toward intelligent and connected.It is critical to incorporate EMC design and control risks at the early design stages,instead of conventionally addressing EMC issues at the last stage.Simulations become more import as they can be used to effectively achieve this goal.In addition,many EMC issues,such as the inconsistency between the module-and system-level electromagnetic interference(EMI)tests,may be well studied using simulation.However,it is usually very challenging to perform automotive EMC simulations,due to the limitations in computational resources,limitations of computational methods and algorithms,and lack of availability of critical information.In this paper,the radio-frequency(RF)interference from the motor drive system to the RF antennas installed in a hybrid electric vehicle(HEV)was used as an example to demonstrate the challenges in vehicle-level simulation,and a divide and conquer approach was presented as a possible solution,and verified as well.

关 键 词：汽车电磁兼容 车辆级建模 射频干扰 电机驱动系统 共模电流束 分而治之仿真法 

分 类 号：TN03[电子电信—物理电子学] U463.6[机械工程—车辆工程]