Method and system for dynamically guiding travel speed of network-connected vehicle during green-light phase of multi-signal intersections

Abstract

The invention discloses a method and a system for dynamically guiding the travel speed of a network-connected vehicle during the green-light phase of multi-signal intersections, wherein a vehicle is guided to pass through two continuous intersections with the minimum consumed fuel oil as the target, and the speed optimization track of the vehicle is supplied to a driver in real time in a visual manner. As a result, the idle running time of the vehicle at intersections and the unnecessary operations of the vehicle, such as sudden acceleration and unnecessary sudden deceleration, can be avoided.Therefore, the extra fuel consumption and the extra tail gas emission of the vehicle are avoided. Meanwhile, the road traffic capacity is improved, and the travel requirements of people are met. Thetravel efficiency of people is improved.

Description

technical field [0001] The invention relates to a method and system for dynamically guiding the speed of a vehicle at a green light phase at a networked vehicle multi-signal intersection. Background technique [0002] Road signalized intersections are an important part of urban roads, and their traffic capacity directly affects the accessibility of urban roads. If the traffic flow density at intersections is too high, it will cause congestion at intersections and seriously affect people's travel. Therefore, reducing parking and delays at signalized intersections and increasing road capacity at intersections are the main goals for improving the traffic service level of urban arterial roads. When the driver is about to arrive at the signalized intersection, he often cannot accurately obtain the countdown information of the signal phase of the current signalized intersection due to problems such as blurred vision and obstructed vision, so he takes unreasonable accelerator and b...

AI Technical Summary

Problems solved by technology

[0003] The research on the speed guidance of signalized intersections is mainly to adjust the traffic signal status of signalized intersections at first, and use the prompts of variable information boards to guide vehicles entering the intersections, so as to avoid vehicles arriving at signalized intersections during the red light phase ; Later, the optimal speed advice was given to the driver by dynamic speed guidance methods, but these studies either optimized fuel consumption and emissions indirectly by considering speed and acceleration, or used fuel consumption and pollution emission models to evaluate various feasible speed values, However, it mainly focuses on the speed guidance of a single intersection, and has not considered the coordinated dynamic speed guidance of two signalized intersections

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