基于驾驶员状态的高速公路安全车距模型

Safe Interval Model on Expressway Based on Driver State

为进一步完善高速公路环境下的安全车距模型,通过道路模拟驾驶试验,确定不同车速、驾驶员不同疲劳状态下的制动反应时间域,同时根据驾驶员的眼睛状态确定驾驶员的疲劳度,基于模糊隶属函数建立驾驶员的制动反应时间与疲劳状态、车速之间的对应关系,并对高速公路环境下的安全车距模型进行实时修正。通过MATLAB仿真验证了不同驾驶员状态下车距模型的可靠性。

In order to improve the accuracy of safe interval model on expressways,driver＇ s reaction time in different driving speeds and fatigue status is researched through experiments on vehicle driving simulator. And driver＇s fatigue status is determined based on driver＇s eye characteristics. Then the relationship of the driver＇ s reaction time,fatigue status and driving speed can be determined by the theory of membership function and correct safe interval model in real time. Simulations have been carried out in different driving conditions to demonstrate the reliability of vehicle safe interval.