The invention relates to a dangerous scene safe driving decision obtaining method. The method comprises the following steps: acquiring environment image data and vehicle state data in real time; respectively extracting corresponding curve radius, road surface friction coefficient, vehicle visibility and surrounding vehicle motion state by utilizing a curve detection method, a friction coefficient detection method, a visibility detection method and a vehicle distance and vehicle speed detection method, and acquiring relative motion state of a target vehicle and surrounding vehicles; performing fusion calculation on the curve radius, the road surface friction coefficient, the vehicle visibility, the surrounding vehicle motion state and the relative motion state to obtain a safe speed limit value, a curve risk value, a safe parking distance value and a distance collision time value; and quantifying the driving risk, performing safety early warning according to the quantified driving risk and the safety speed limit value, and providing a final driving decision. Compared with the prior art, the method has the advantages that the sensing precision of the driving assistance system in the bad weather environment is improved, and the accuracy of driving decision making is improved.
本发明涉及一种危险场景安全驾驶决策获取方法。该方法实时获取环境图像数据以及车辆状态数据;利用弯道检测方法、摩擦系数检测方法、能见度检测方法以及车距车速检测方法,分别提取相应的弯道半径、路面摩擦系数、车辆能见度以及周围车辆运动状态,并获取目标车辆与其周围车辆的相对运动状态;对弯道半径、路面摩擦系数、车辆能见度、周围车辆运动状态和相对运动状态进行融合计算,获取安全限速值、弯道风险值、安全停车距离值和距离碰撞时间值;量化驾驶风险,根据量化后的驾驶风险和安全限速值进行安全预警,提供最终的驾驶决策。与现有技术相比,本发明具有提升驾驶辅助系统在不良天气环境下的感知精度,提高驾驶决策的准确性等优点。
Dangerous scene safe driving decision obtaining method
一种危险场景安全驾驶决策获取方法
2024-07-12
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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