Study On Vehicle Speed Guidance Method In The Adjacent Area Of Traffic Signal Control Considering Driver Operating Behavior

Because of the cyclical changes in signal timing,the phenomenon of “start-stop” and changes in acceleration and deceleration during the driving of the vehicle in the adjacent area of signal control,which in turn leads to problems such as energy consumption and traffic efficiency.Research shows that the vehicle speed guidance method can effectively improve the fuel economy and traffic efficiency of vehicles in the near-signal control area.However,most existing vehicle speed guidance methods ignore the influence of the driver operating behavior.They mainly guide the autonomous driving vehicle,assuming that the vehicle can travel at the full guidance speed.At present,the technology of autopilot is a little popular in our country,and it is difficult for drivers to follow the guidance speed completely,and thus affect the adaptability of the speed guiding method.Therefore,study the response characteristics of the driver and the vehicle to the guidance speed,and establish the speed guidance method that takes into account the driver's operating characteristics.It is of great practical significance to improve the adaptability of the method to improve the fuel economy and traffic efficiency of vehicles,to ease existing traffic problemsThis paper uses Backstepping method to design an adaptive fault-tolerant controller to describe the driver and vehicle response model.Based on the simulation platform of driving simulator,the model parameters are calibrated and the validity of the model is verified.On this basis,the vehicle speed guiding method that considers the driver's operating characteristics is studied to improve the adaptability of the speed guiding method.In view of the impact of the preceding vehicle on the rear vehicle,based on the full speed difference model,a vehicle speed guiding method considering the rear vehicle is proposed to improve the efficiency of the rear vehicle.Research work of this paper includes the following three aspects:Firstly,the driver's observation of the optimal guidance speed to the change of the vehicle operating status,the response characteristics of the vehicle and the person are affected,resulting in the vehicle unable to accurately follow the guidance speed.Therefore,an adaptive fault-tolerant controller is designed to describe people based on the Backstepping method.The vehicle response model ca librates the model parameters through a driving simulator simulation platform and verifies the validity of the model.Secondly,Based on the characteristics of vehicles in the adjacent area of signal control,a pre-determination model for vehicles is estab lished,and on this basis,the acceleration and deceleration changes are optimized.Considering the influence of driver-vehicle response characteristics on the vehicle speed guidance method,a closed-loop feedback speed update algorithm is proposed,which compensates for the delay caused by the response characteristics of human and vehicles to ensure that vehicles can pass within a given time.Finally,through simulation and comparison,the proposed algorithm can improve vehicle fuel economy and vehicle traffic efficiency.Thirdly,Based on the full speed difference model,the vehicle speed guidance method considering the rear vehicle coordination is studied.The closed-loop feedback speed updating algorithm is improved,especially when the car can't pass after the car can pass.Considering the speed guidance method of the rear vehicle cooperative vehicle to effectively improve the traffic efficiency of the vehicle rear vehicle.In summary,this paper is based on the model of driver and vehicle response,the speed guidance method considering the driver's operation characteristics and the speed guidance method considering the rear vehicle coordination are put forward.The effectiveness of the simulation method has been verified to improve the fuel economy and traffic efficiency of vehicles,thus al eviating the existing traffic problems.