The invention provides a network-connected automobile curve collision early warning method and system based on driver steady-state preview, and the method comprises the steps: obtaining the state information of a remote automobile and a local automobile, and building a system coordinate system according to the state information; calculating the transverse distance between the far vehicle and the vehicle according to the system coordinates of the far vehicle and the vehicle in the system coordinate system, judging whether the far vehicle is an early warning target vehicle or not according to the transverse distance, and when the far vehicle is the early warning target vehicle, calculating the vehicle states of the vehicle and the early warning target vehicle after the preview time, calculating a safe distance between the vehicle and the early warning target vehicle according to the vehicle state; and comparing the longitudinal distance between the vehicle and the early warning target vehicle after the preview time with the safety distance, and performing early warning when the longitudinal distance is smaller than the safety distance. Compared with a traditional straightway forward collision early warning method, the method has the advantages that effective early warning targets in front are considered, and invalid early warning is greatly reduced.
本发明提供了一种基于驾驶员稳态预瞄的网联汽车弯道碰撞预警方法及系统,包括:获取远车与本车的状态信息,根据所述状态信息建立系统坐标系;根据所述系统坐标系中远车与本车的系统坐标计算所述远车与本车之间的横向距离,根据所述横向距离判断远车是否为预警目标车辆,且在所述远车为预警目标车辆时,计算本车和所述预警目标车辆在预瞄时间后的车辆状态,根据车辆状态计算本车和所述预警目标车辆之间的安全距离;将预瞄时间后所述本车和所述预警目标车辆之间的纵向距离与所述安全距离进行比较,且当所述纵向距离小于安全距离时进行预警。本发明相比传统直道前向碰撞预警方法,考虑前方有效预警目标,大大减小了无效预警。
Network connection automobile curve collision early warning method and system based on driver steady state preview
基于驾驶员稳态预瞄的网联汽车弯道碰撞预警方法及系统
2022-05-27
Patent
Elektronische Ressource
Chinesisch
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