The invention discloses an expected function safety risk assessment method, and relates to the technical field of automatic driving. The method is based on an SOTIF scene architecture, collision severity S is calculated through collision object types and relative speed, corresponding information is acquired from external environment by using a current mainstream BEV + Occupancy Network perception algorithm, collision risk and detection capability of the BEV + Occupancy Network perception algorithm are calculated, and the collision severity S is calculated according to the detection capability of the BEV + Occupancy Network perception algorithm and the detection capability of the BEV + Occupancy Network perception algorithm and the detection capability of the BEV + Occupancy Network perception algorithm and the detection capability of the BEV + Occupancy Network perception algorithm. Finally, the risk priority number of the vehicle in the current environment is output in real time according to the three indexes, whether a takeover signal is sent out or not is judged according to the total risk priority number obtained after normalization, and improvement measures are made. According to the method, the accuracy of a sensing system is improved, and the unsafe risk that expected function safety is known and unknown is reduced.
本发明公开了一种预期功能安全风险评估方法,涉及自动驾驶技术领域。该方法基于SOTIF场景架构,首先通过碰撞对象类型和相对速度计算碰撞严重性S,然后利用目前自动驾驶汽车主流的BEV+Occupancy Network感知算法对外界环境获取对应信息,计算碰撞风险和BEV+Occupancy Network感知算法的检测能力,最后根据这三个指标实时输出车辆处于当前环境的风险优先数,最后根据归一化后的总的风险优先数的大小来判断是否发出接管信号,制定改进措施;该方法提高了感知系统的准确度,降低了预期功能安全已知和未知的不安全风险。
Expected function safety risk assessment method
一种预期功能安全风险评估方法
2024-12-17
Patent
Electronic Resource
Chinese
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 |
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