The invention discloses a vehicle driving controllability assessment method and a vehicle function safety risk assessment method, and the risk assessment method comprises the steps: determining a to-be-assessed vehicle function and function parameters, and generating a plurality of test cases, each test case comprising a target fault type; determining a target operation part, and correspondingly setting a driver response time interval range, a post-response operation time interval range and a part response time limit value; according to a preset controllability grade standard, dividing the sum of the controllability grades into a plurality of intervals, and taking the intervals as driver operation time interval ranges corresponding to the controllability grades; adding on the basis of each driver operation time interval range to obtain an FTTI interval corresponding to each controllability level; and determining a fault tolerance time interval of each test case based on the function parameters, and searching a controllability level associated with the FTTI interval where the fault tolerance time interval is located. According to the invention, a reliable and accurate controllability grade evaluation result is provided for automobile safety integrity grade evaluation.
本发明公开了一种汽车驾驶可控度评估方法及车辆功能安全风险评估方法,风险评估方法包括确定待评估的车辆功能及功能参数并生成多条测试例,每条测试例包含一目标故障类型;确定目标操作部件,并对应设置驾驶员反应时间区间范围、反应后操作时间区间范围和部件响应时间限值;按照预设的可控度等级标准,将与之和划分为多个区间,作为各个可控度等级对应的驾驶员操作时间区间范围;在各个驾驶员操作时间区间范围基础上加上,得到各个可控度等级对应的FTTI区间;基于功能参数确定各测试例的故障容错时间间隔并查找其所在的FTTI区间所关联的可控度等级。本发明为汽车安全完整性等级评估提供可靠的准确的可控度等级评估结果。
Automobile driving controllability assessment method and vehicle function safety risk assessment method
汽车驾驶可控度评估方法及车辆功能安全风险评估方法
2023-04-07
Patent
Elektronische Ressource
Chinesisch
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 |
Self-driving automobile road test safety risk assessment method and device
Europäisches Patentamt | 2023
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