A dynamic collaborative control method for the variable speed limit of the automatic driving special lane and the general lane for the merge area on the expressway

Abstract

The invention discloses a dynamic cooperative management and control method for the variable speed limit of the special lane for automatic driving and the variable speed limit of the general lane for the merge area on the expressway: generate a traffic operation state classifier; establish three kinds of preset function curves of objective functions; determine the automatic driving The number of dedicated lanes; the dynamic collaborative control scheme is activated when the traffic operation state is congested; the roadside communication unit releases the control information of the special lane for automatic driving and the dynamic variable speed limit control information; the traffic information cloud dynamically adjusts the variable speed limit information. The traffic flow tends to be in a stable free flow state, and the dynamic collaborative control is over. The present invention is used in the dynamic collaborative control method of the variable speed limit of the automatic driving special lane and the general lane in the merge area on the expressway, which promotes the adaptability of CAVs and provides an active management mode for traffic managers by providing priority use rights for automatic driving vehicles , to impose variable speed limits on the general lane traffic flow, to achieve the purpose of improving traffic efficiency and reducing traffic conflicts.

Description

technical field [0001] The invention belongs to the technical field of intelligent transportation, and relates to a dynamic cooperative management and control method for the variable speed limit of the automatic driving special lane and the general lane in the merge area on the expressway. Background technique [0002] In recent years, China has successively proposed the "Outline for a Powerful Country in Transportation" and the national key strategic requirements for "new infrastructure", clearly pointing out that the development of smart transportation in the future needs to focus on intelligent networked autonomous vehicles and digital transportation infrastructure. In this context, breakthroughs have been made in the key technologies of autonomous driving, and road tests of autonomous vehicles have also begun to be carried out across the country. For a long time in the future, there will be a situation where autonomous vehicles and human-driven vehicles are mixed. The fl...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the specific embodiments of the present invention is to provide a dynamic collaborative control method for the variable speed limit of the automatic driving special lane and the general lane in the merge area on the expressway, and promote the adaptability and performance of CAVs by providing priority use rights for automatic driving vehicles. Provide traffic managers with an active management mode, and implement variable speed limits on general-purpose lanes based on real-time traffic flow information, so as to improve traffic efficiency, reduce traffic conflicts, and travel time; secondly, CAV vehicles use V2V, V2X and other communication technologies to make It can maintain a smaller headway, faster running speed and higher stability on the dedicated lane, thereby improving traffic safety and improving road traffic capacity, so as to solve the problems existing in the transition to a fully automatic driving environment in the future. The operating characteristics of high-quality traffic flow are not yet clear, and the management and control methods need to be improved, which leads to problems such as low traffic capacity, large safety hazards, and high operational delays.

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