Study on Safety Analysis Method for Take-over System of Autonomous Vehicles
| Autor: | Xingyu Xing, Shan Wang, Tangrui Zhou, Lu Xiong, Junyi Chen |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Structure (mathematical logic)
050210 logistics & transportation 021110 strategic defence & security studies Computer science Process (engineering) Interface (computing) 05 social sciences Control (management) 0211 other engineering and technologies Questionnaire 02 engineering and technology Test (assessment) Risk analysis (engineering) Control system 0502 economics and business Key (cryptography) |
| Zdroj: | 2020 IEEE Intelligent Vehicles Symposium (IV). |
| Popis: | Take-over process refers to the situation where drivers are required to take over control of vehicles under certain conditions, which currently lacks safety analysis. To address this problem, Systems-Theoretic Process Analysis (STPA) is extended according to ISO 21448 for the safety analysis of a take-over system, which consists of a driver and a human-machine interface (HMI). First, system-level hazards are analyzed to develop safety constraints. Then, a control structure of the take-over process is modeled to identify unsafe control actions considering human factors. Finally, causal factors of the unsafe control actions are analyzed, and safety requirements regarding HMI are put forward to guide the design of the take-over system. This method was applied to analyze the take-over system of an autonomous vehicle operating in a closed area, and corresponding safety requirements were determined. Based on the results of a questionnaire survey and a take-over test, the analysis method is proved to be applicable to improving the safety of the take-over system. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|