Traffic signal in crossroad and vehicle coordinated control method, device and vehicle

Abstract

The invention discloses a traffic signal in crossroad and vehicle coordinated control method, device and vehicle. The method comprises the following steps: 1, based on the average traffic flow calculating the cycle of traffic signal lights, step 2, based on the positioning information of vehicles and the crossroad stop-line information calculating the signal split and the time used for various vehicles to arrive at the crossroad stop-line, step 3, based on the traffic signal cycle and signal split, controlling the switching of traffic signal lights of the crossroad, step 4, judging if all vehicles pass the crossroad, if the answer is negative, then entering step 5, if the answer is affirmative, entering step 6, step 5, sending the crossroad stop-line arrival time of all vehicles and the traffic signal light cycle to the corresponding vehicles for the calculation of the anticipated speeds of corresponding vehicles, step 6, checking whether the traffic signal light cycle is ended, if the answer is affirmative, returning to step 2, if the answer is negative, returning to step 4. The method can optimize the time distribution of crossroads and the speed and acceleration trajectory of the vehicles passing the crossroads, and control the traffic signals of the crossroads and the acceleration of the vehicles heading toward the crossroads.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a traffic signal and vehicle cooperative control method and device at an intersection, and a vehicle. Background technique [0002] The number of cars in our country continues to rise, and the resulting problems of traffic congestion and energy consumption are becoming more and more serious. The reason is that the growth rate of car ownership far exceeds the speed of road construction. Therefore, the key to solving the problem of traffic congestion and the resulting energy consumption lies in improving the traffic efficiency of existing roads. In urban areas, an important factor that restricts traffic efficiency is signalized intersections. Signal timing at intersections and the speed of vehicles passing through intersections will affect the efficiency of traffic flow at intersections, and then affect the rest of the traffic on the road through traffic fluctua...

AI Technical Summary

Problems solved by technology

Traffic signal adaptive control and vehicle speed guidance control are not implemented in the same system, so it is impossible to simultaneously improve traffic efficiency and improve vehicle fuel economy from both ends of the road

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