安全高效跟驰状态下的后车行为控制

发布时间：2018-03-17 18:27

本文选题：交通工程　切入点：车辆行为调整　出处：《铁道学报》2015年11期 　论文类型：期刊论文

【摘要】：安全高效跟驰状态下,后车应当根据前车的行为变化科学调整自身行为,才不至于失去安全高效跟驰状态。首先,建立安全跟驰车距随速度变化的拟合函数,作为后车行为调整的依据,并与目标距离速度控制方式相比较,讨论了全速域范围内一般跟驰情形任意速度条件下绝对安全车距计算对于列车运行控制的重要性。然后,基于后车行为调整单元的始末时间,提出安全车距实时跟踪条件下的两种速差控制律的计算方法,处于安全高效跟驰状态下的后车可根据前车行为变化做适应性调整。仿真实验显示,实际车距能够通过后车行为的科学调整得到很好的控制,而且车辆跟驰时隙可以减小至0,这为安全行车条件下进一步提高行车组织效率提供了工程实现方法。
[Abstract]:In the safe and efficient car-following state, the rear car should adjust its behavior scientifically according to the behavior change of the front car, so as not to lose the safe and efficient car-following state. First, establish the fitting function of the change of the safety car-following distance with the speed. As the basis for the adjustment of rear vehicle behavior, and compared with the target range speed control mode, the importance of absolute safe vehicle distance calculation for train operation control under the condition of arbitrary speed in general car-following condition in full speed range is discussed. Based on the initial and final time of the rear-vehicle behavior adjustment unit, two speed difference control laws are proposed under the condition of real-time tracking of the safety vehicle distance. The rear car in the state of safety and high efficiency can be adjusted adaptively according to the change of the behavior of the front car. The simulation results show that the actual vehicle distance can be well controlled through the scientific adjustment of the behavior of the rear car. Moreover, the time slot of car-following can be reduced to 0, which provides an engineering implementation method for further improving the efficiency of driving organization under safe driving conditions.
【作者单位】：同济大学电子与信息工程学院;
【基金】：国家自然科学基金(61174183)
【分类号】：U492.8

【共引文献】