关键词: 信息物理系统, 耦合映射跟驰模型, 信息响应延迟, 反馈控制, 拥堵抑制

Abstract: In view of the delay time of the car following model which leads to the traffic congestion. The paper redefines the coupled map car following model under CPS（Cyber Physical System）. In the process of the interaction between the physical end which delay causes congestion and the network terminal embedded the computation function, the concept of the equilibrium distance is proposed. On this basis, the response delay time is quantified. Thus, it can increase the vehicle distance, lengthen the operating time line indirectly, and provide a predictive function to the driving system. The feedback control of the front and rear cars is considered, and different feedback coefficients are selected. Simulation results show that the model of the coupled map car following under CPS can suppress traffic congestion significantly.

Key words: cyber physical system, coupled map car following model, response delay time, feedback control, suppress traffic congestion