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拥堵控制中,通过车辆运行状态感知与控制的交互融合,实现对车辆有效控制的过程,具有信息物理融合系统的典型特征.本文基于Konishi等的研究工作,从交通信息系统与交通物理系统融合的角度,进一步考虑优化速度差和安全间距对车流的影响,在耦合映射跟驰模型中,提出了一种考虑最邻近前车综合信息的交通拥堵反馈控制方案.运用反馈控制理论,给出了头车速度发生变化时交通流保持稳定的条件,并与前人工作进行了比较.理论分析与数值模拟结果一致表明,耦合映射跟驰模型在本文提出的控制方案下能更有效地抑制交通拥堵.
In congestion control, the process of effective control of vehicles is realized through the interaction and fusion of vehicle operating status perception and control, and the typical characteristics of information-physical integration system.Based on the research work of Konishi et al., From the integration of traffic information system and traffic physics system Angle and further consider the influence of speed difference and safety distance on traffic flow, a traffic congestion feedback control scheme considering the comprehensive information of the nearest front vehicle is proposed in the coupled map-following model. The feedback control theory is used to give the head The traffic flow is stable when the vehicle speed changes and compared with previous work.The theoretical analysis and numerical simulation results show that the coupled map-following model can restrain traffic congestion more effectively under the control scheme proposed in this paper.