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In order to facilitate a comprehensive understanding of the Autonomous Valet Parking (AVP) system including its behavioral limitations, and to ensure its Safety Of The Intended Function (SOTIF), the paper proposes the SOTIF analysis process for AVP systems. This procedure synthesizes the ISO 21448 and the System Theory Process Analysis (STPA) method, and elaborates on system safety and triggering conditions, layers triggering conditions and combines with fuzzy comprehensive evaluation to build SOTIF scenarios. The evaluation employs collision distance risk, collision time risk and braking deceleration risk as key performance indicators. The Criteria Importance Through Intercriteria Correlation (CRITIC) and Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) methods are utilized for index weighting and evaluation. Finally, SOTIF scores of AVP systems under different scenarios are obtained through real vehicle testing, clarifying unsafe scenarios and providing targeted guidance for product optimization.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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