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Multi-lane lane changing method and system of automatic driving vehicle under heterogeneous traffic flow

A self-driving car and traffic flow technology, applied in the field of multi-lane lane changing methods and systems, can solve the problem of less driving data

Pending Publication Date: 2021-12-14
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, there is currently very little driving data for autonomous vehicles.

Method used

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  • Multi-lane lane changing method and system of automatic driving vehicle under heterogeneous traffic flow
  • Multi-lane lane changing method and system of automatic driving vehicle under heterogeneous traffic flow
  • Multi-lane lane changing method and system of automatic driving vehicle under heterogeneous traffic flow

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Embodiment Construction

[0088] Embodiments of the present invention will be described in detail below. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0089] It should be noted that the terms "first", "second", "left", and "right" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features . Thus, features defined as "first", "second", "left", "right" may expressly or implicitly include one or more of such features.

[0090] The present invention provides a multi-lane lane changing method for heterogeneous traffic flow of self-driving vehicles. Firstly, a multi-lane traffic flow simulation model of heterogeneous traffic flow of self-driving vehicles based on cellular automata microscopic simulation is established; and then safety is considered Based on the principle of driving time ...

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Abstract

The invention discloses a multi-lane lane changing method and system of an automatic driving vehicle under heterogeneous traffic flow. The method comprises the following steps: S1, establishing a heterogeneous traffic flow multi-lane traffic flow model of an automatic driving vehicle based on a cellular automaton; S2, formulating heterogeneous traffic flow multi-lane lane changing rules of the automatic driving vehicle under a safety principle and a driving time principle; S3, obtaining a microscopic simulation basic diagram of heterogeneous traffic flow multi-lane lane changing of the automatic driving vehicle through microscopic simulation, and analyzing relations between dynamic characteristics of the heterogeneous traffic flow multi-lane lane changing of the automatic driving vehicle; and S4, giving an analytical expression among the dynamic characteristics, and performing simulation verification. The invention can meet the requirements of analyzing a vehicle density interval of heterogeneous traffic flow multi-lane lane changing of an automatic driving vehicle and the vehicle passing efficiency of lane changing improvement, and is of great significance to the traffic characteristic research of heterogeneous traffic flow of the automatic driving vehicle and the popularization and application of the automatic driving vehicle.

Description

technical field [0001] The present invention relates to the field of heterogeneous traffic flow of self-driving vehicles, in particular to a method and system for changing lanes of multiple lanes under heterogeneous traffic flow of self-driving vehicles. Background technique [0002] Autonomous vehicles play an important role in a modern integrated transportation system. First of all, self-driving vehicles can communicate and coordinate with each other to improve traffic efficiency and reduce traffic congestion. Second, self-driving cars can reduce human interference and improve urban traffic safety. Third, self-driving cars usually use clean energy, which can promote energy conservation and emission reduction. [0003] At this stage, research on the heterogeneous traffic flow of self-driving vehicles requires the following two technologies: [0004] On the one hand, heterogeneous traffic flow models that consider the characteristics of autonomous vehicles need to be esta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G08G1/0967G06F119/02
CPCG06F30/20G08G1/096725G06F2119/02
Inventor 陈博奎王铳
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV