车路协同环境下车辆前照灯自适应控制方法研究

Adaptive Control Approaches of Vehicle Front-lighting System Based on Cooperative Vehicle-infrastructure

针对现有自适应前照灯控制系统仅仅根据汽车行驶状态及转向盘触发车灯偏转,使得车灯偏转动作带有明显的滞后性的问题,引入车辆行驶前方道路线形信息,建立了车路协同环境下车辆前照灯自适应控制方法的系统。在不改变原有车灯控制系统执行机构的情况下,利用车路协同装置将线形曲率等道路信息提前传输给汽车,综合利用行车状态信息实时计算出车灯偏转角度,自适应调整灯光照明方向。经仿真结果表明,该方法可以更加主动精确的调整车灯偏转角度,减少视野盲区,提高行车安全性。

The current adaptive front-lighting system triggers lights deflection only by the driver＇s steering action, which makes the light deflection action with a clear lag. This paper proposes a mathematical method of adaptive front- light system based on cooperative vehicle infrastructure system. Without changing the light control system, such road in- formation as curvature curve can be transmitted to cars with the cooperative vehicle and road system. The real-time light deflection angle can be calculated by using the comprehensive traffic status information, and the adaptive lighting direction can also be achieved. The simulation results show that it can be more active to adjust light deflection angle, and reduce the blind vision to improve driving safety.