The invention relates to a construction method of an automatic driving takeover risk assessment model considering a driving risk field, and the method comprises the following steps: 1, calculating a vehicle performance probability factor according to the response speed and response degree of a vehicle to a risk; 2, constructing a distance-based static risk distribution function; 3, constructing a dynamic risk distribution function based on a motion state; 4, considering the influence of the take-over reaction time, and calculating the field intensity of the driving risk field; extracting data information of the own vehicle and the interactive vehicle; 5, preprocessing the speed and acceleration data of the vehicle based on a Kalman filtering method; and step 6, substituting the calibrated equivalent mass and each unsteady coefficient into the automatic driving takeover risk assessment model to obtain the automatic driving takeover risk assessment model based on the driving risk field. According to the invention, the safety of the whole road network system can be improved, and the accident rate and the casualty rate caused by automatic driving of vehicles can be reduced.
本发明涉及一种考虑行车风险场的自动驾驶接管风险评估模型的构建方法,包括如下步骤:步骤一、根据车辆对风险的响应速度和响应程度,计算车辆性能概率因子;步骤二、构建基于距离的静态风险分布函数;步骤三、构建基于运动状态的动态风险分布函数;步骤四、考虑接管反应时间的影响,计算行车风险场场强;并提取自车辆和交互车辆的数据信息;步骤五、基于卡尔曼滤波法对车辆的速度和加速度数据进行预处理;步骤六、将标定完成的等效质量和各项待定常系数代入自动驾驶接管风险评估模型,即得到基于行车风险场的自动驾驶接管风险评估模型。本发明可提高整个路网系统的安全性,降低自动驾驶车辆所造成的事故发生率和人员伤亡率。
Automatic driving takeover risk assessment model considering driving risk field and construction method thereof
考虑行车风险场的自动驾驶接管风险评估模型及其构建方法
2023-01-17
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES |
Europäisches Patentamt | 2020
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