Eco-driving strategy for mixed traffic flow of connected automated vehicles considering intersection start-stop wave
An ecological driving strategy for connected automated vehicles based on intersection start-stop wave analysis was proposed to avoid frequent stop-start of vehicles at intersections and reduce the fuel consumption and pollution emission of vehicles.Firstly,the intersection start-stop wave influence range was analyzed,and the passage mode of vehicles through the intersection was classified;then,the saturation speed was calculated with the basic graph model of mixed traffic flow,and the vehicle passing time point was created and selected according to the saturation speed,and the end moment and location of the intelligent networked vehicle trajectory optimization were calculated in combination with the intersection start-stop wave;finally,the intelligent networked vehicle trajectory was optimized according to the three-stage speed planning curve model.The results show that the average fuel consumption,pollutant emissions and delays incurred by vehicles with eco-driving strategies gradually decrease with penetration increasing;and the magnitude of fuel consumption gain for low traffic flow is always greater than that for high traffic flow under the same penetration.In the case of 600 pcu/h traffic flow and 100%penetration,the eco-driving strategy reduces fuel consumption by 15.57%and delays by 23.57%.
traffic engineeringmixed trafficeco-drivingintersection start-stop wavetrajectory optimizationenergy saving and emission reduction
NETL
NSTL
万方数据
