一种汽车电气系统电磁防护方法研究

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关键词：电磁防护；线束屏蔽处理；控制器模块防护处理；接地点阻抗控制；电磁兼容性中图分类号：U469 收稿日期：2025-05-14 DOI： 10.19999/j.cnki.1004-0226.2025.08.013

Research on Electromagnetic Protection Method for Automotive Electrical System

Du LangdongNan ZiyuanJing PanZhang Zhuofan Shaanxi Heavy DutyAutomobile Co.，Ltd.，Xi'an 7102o0，China

Abstract：Conventionalautomotiveelectromagneticprotectionreliesheavilyonbulkymetalenclosuresorshieldedcabins.While effectiveimetingbasicoperaionalrequirements，teseappoachessuferfromsigificantspaceieffciencyandhighmanufacturing costs.Addressingthseliitations，tispaperproposesadvalidatesacomprehensiveelectromagneticprotectionmethodtargetingthe automotiveelectricalsystem.This methodfocusesonthetreecorephysicalpathwaysforelectromagneticinterference（EM）conduction：wiringhaeses，ontrolerodulesdgoundingpoits.Iticorporatesassdingtreamentontroleroduleprot tiontreatment，andimpedancecontrolofelectricalsystemgroundingpointstosystematicallnhanceelectromagneticompatibility （EMC）andresistanetoelectromagneticdamage.Experimentalresultsdemonstratethatthisapproachensuresprotectioneffcacywhile significantlyeducingspatialfootprintandimplementatiocosts，feriganctiesoutionforthelectromageticprotctiodsig ofautomotive electrical systems，particularly for special-purpose vehicles and new energy vehicles.

Keywords：Electromagneticprotection;Harnesshelding treatment;Controlermoduleprotectiontreatment;Groundingpointimpedance control;Electromagnetic compatibility （EMC）

1背景及意义

随着新能源汽车的快速发展，高/低压设备激增，高/低压线束共存现象普遍，线束间串扰与共阻抗耦合问题加剧，导致汽车电磁兼容性（EMC）挑战日益严峻。（剩余4999字）