基于LTE-V2X预警类应用的功能安全分析

摘要 本研究基于LTE-V2X直连通信技术，对预警类应用的功能安全进行了系统分析。研究背景指出，传统的功能安全分析方法主要针对单车系统，近年来V2X技术逐渐发展，智能网联汽车应用不断增加，但缺乏系统性的功能安全分析方法。本研究选取前向碰撞预警（FCW）、交叉路口碰撞预警（ICW）和闯红灯预警（RLVW）三个典型应用场景，对基于LTE-V2X预警类应用的功能安全分析进行了技术探索。 在研究现状部分，本研究总结了国内外的相关研究和标准，包括5GAA的STiCAD项目、中国汽车工程学会的T/CSAE53标准、汽标委的预警类应用技术要求和试验方法，以及C-NCAP2024版测试规程中的相关场景。本研究还对V2X预警类应用进行了分类，分为安全类和效率类应用，并指出安全类应用与功能安全的相关性更大，因此本研究以安全类的三个典型应用场景为目标展开分析。 在功能安全分析方法论部分，本研究基于GB/T34590的框架，详细阐述了相关项定义、危害分析和风险评估、功能安全概念等步骤。 在第5章到第7章的三个章节，本研究针对前向碰撞预警（FCW）、交叉路口碰撞预警（ICW）、闯红灯预警（RLVW）应用，分别进行了相关项定义、潜在危害识别、ASIL分析等工作，提出了针对安全目标的功能安全要求。 在总结及展望部分，建议以本研究为开端，将GB/T34590的功能安全分析方法拓展至V2X系统。本研究的主要结论为：QM级别的功能安全设计能够满足V2X预警类应用的需求。 ExecutiveSummary ThisstudyconductsasystematicfunctionalsafetyanalysisforLTE-V2XwarningapplicationsbasedontheISO26262(GB/T34590)methodology.ThebackgroundhighlightstheneedforsystematicfunctionalsafetyanalysisforV2Xapplicationsastraditionalmethodsonlycoverego-vehiclesystems.Withtheadvancementof V2X technology,there is an increasing number of intelligent connected vehicleapplicationsrequiringsuchanalysis. ThescopeofthestudyincludesfunctionalsafetyanalysisforwarningapplicationsbasedonLTE-V2Xdirectcommunication,focusingonthreetypicalscenarios:ForwardCollisionWarning(FCW),IntersectionCollisionWarning(ICW),andRedLightViolationWarning(RLVW).Theseapplicationsprovidewarninginformationwithoutvehiclecontrolintervention,leavingthedrivertotakeappropriateactionsbasedonthewarnings. ThecurrentstatuschapterreviewsglobalanddomesticadvancementsinV2Xfunctionalsafety,includingthe5GAA's STiCADproject,standardsfrom theChinaSociety ofAutomotive Engineers,andV2XwarningapplicationscenariosintheC-NCAP2024testprocedures. ThefunctionalsafetyanalysismethodologysectiondetailsthestepsbasedonGB/T34590,includingitemdefinition,hazardanalysisandriskassessment,andfunctionalsafetyconcepts.Throughdetailedanalysisofthe three typical scenarios,potential hazards are identified,and corresponding functional safetyrequirementsareproposed. Inthefollowingthreechapters,thisstudyconductsthefollowingworkforForwardCollisionWarning(FCW),IntersectionCollisionWarning(ICW),andRedLightViolationWarning(RLVW)applicationsrespectively:itemdefinition,hazardanalysisandriskassessment,ASILanalysisandfunctionalsafetyrequirements. Thestudy concludes that V2X functional safety analysis should be integrated into the ISO 26262framework.ThepotentialhazardsintypicalV2XwarningscenarioscanbemanagedwithQM-levelsafetymeasures. 目录 ExecutiveSummary....................................................................................................................2 1背景及范围..............................................................................................................................4 1.1研究背景.......................................................................................................................................41.2研究范围.......................................................................................................................................4 2研究现状..................................................................................................................................5 2.1国内外现阶段研究概述...............................................................................................................5 3V2X预警类应用总结................................................................................................................7 4.1概述.............................................................................................................................................104.2相关项定义.................................................................................................................................104.3危害分析和风险评估.................................................................................................................114.4功能安全概念.............................................................................................................................11 5前向碰撞预警（FCW）——高速度差追尾..............................................................................12 5.1相关项定义.................................................................................................................................125.2危害分析和风险评估.................................................................................................................135.3功能安全概念.............................................................................................................................15 6交叉路口碰撞预警（ICW）....................................................................................................18 6.1相关项定义.................................................................................................................................186.2危害分析和风险评估.................................................................................................................196.3功能安全概念.............................................................................................................................21 7闯红灯预警（RLVW）................................