The invention discloses an expected function safety demand analysis method for an automatic emergency braking (AEB) system based on a system theory process analysis (STPA) method, which comprises the following steps of: establishing an AEB system control structure, defining system level loss, and carrying out hazard identification and risk assessment; based on a system operation scene, an AEB system STPA control architecture of a subdivision scene is established, according to unsafe control behaviors possibly caused by a hierarchical control architecture in the subdivision scene, recognition is carried out, triggering conditions of the unsafe control behaviors are analyzed, and an AEB system control strategy is improved in combination with the analysis. According to the expected function security demand analysis method provided by the invention, the security of the AEB system control strategy is improved.

    本发明公开了一种基于系统理论过程分析(System‑Thertic Process Analysis,STPA)方法的自动紧急制动系统(Autonomous Emergency Braking,AEB)预期功能安全需求分析方法,包括建立AEB系统控制结构、定义系统层级损失、进行危害识别和风险评估;基于系统运行场景建立细分场景的AEB系统STPA控制架构,根据细分场景下的分层控制架构可能导致的不安全控制行为进行识别,并且分析不安全控制行为的触发条件,结合上述分析改进AEB系统控制策略。本发明提供的预期功能安全需求分析方法提高了AEB系统控制策略的安全性。


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    Title :

    STPA-based automatic emergency braking system expected function safety demand analysis method


    Additional title:

    基于STPA的自动紧急制动系统预期功能安全需求分析方法


    Contributors:
    LIU ZHENG (author) / LI YUFANG (author)

    Publication date :

    2024-03-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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