The invention provides a vehicle driving risk field modeling method in a network connection environment. The method comprises the following steps: acquiring environment information around a target vehicle through vehicle networking equipment, a millimeter wave radar, a GPS and other equipment; selecting a target networked vehicle as a reference system, and calculating the speed and distance of surrounding objects relative to the target vehicle; the distance between the two vehicles is corrected into a pseudo distance according to the speed component, and the change of the safety risk degree when the vehicles approach the target vehicle from different angles is better described; a target vehicle is used as a static reference system, moving objects and static objects are unified by using relative speeds of surrounding objects and the target vehicle, and driving risks of the objects to the target vehicle are calculated and superposed by combining information such as equivalent mass and road environment influence factors. Modeling of a driving risk field and real-time dynamic risk assessment in a network connection environment are realized, and a theoretical support is provided for an intelligent network connection vehicle active safety control and trajectory planning method.
本发明提出了一种网联环境下车辆行车风险场建模方法。通过车联网设备、毫米波雷达、GPS等设备采集目标车辆周围的环境信息;选取目标网联车辆为参考系,计算周围物体相对目标车辆的速度及距离;根据速度分量将两车距离修正为伪距离,更好地描述了车辆从不同角度接近目标车辆时安全风险程度的变化;以目标车辆为静止参考系,利用周围物体与目标车辆的相对速度对运动物体与静止物体进行统一,结合等效质量、道路环境影响因子等信息计算各物体对目标车辆的行车风险并进行叠加,实现网联环境下行车风险场建模和实时动态风险评估,为智能网联车辆主动安全控制及轨迹规划方法提供理论支撑。
Vehicle driving risk field modeling method in network connection environment
一种网联环境下车辆行车风险场建模方法
2024-05-28
Patent
Elektronische Ressource
Chinesisch
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