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Intelligent networked vehicle state vector calculation method based on vehicle-road information coupling

A technology of state vector and calculation method, which is applied in the traffic control system of road vehicles, traffic flow detection, traffic signal control, etc., can solve the lack of interference factors of surrounding vehicles, it is difficult to meet the multi-vehicle goal at the same time, and does not consider multi-vehicle coordination Lane-changing factors, etc.

Active Publication Date: 2020-11-06
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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AI Technical Summary

Problems solved by technology

Compared with the single-lane space-time trajectory optimization problem, the multi-lane space-time trajectory optimization problem has higher complexity, and it is difficult to directly solve the multi-lane space-time trajectory optimization problem through the existing lane changing rules
[0013] 2. Traditional routing methods have limited information acquisition capabilities, often rely on fixed traffic detectors, and lack real-time, efficient, and accurate vehicle driving information a

Method used

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  • Intelligent networked vehicle state vector calculation method based on vehicle-road information coupling
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  • Intelligent networked vehicle state vector calculation method based on vehicle-road information coupling

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Embodiment Construction

[0101] 1. A method for calculating state vectors of intelligent connected vehicles based on vehicle-road information coupling

[0102]The multi-lane spatio-temporal trajectory optimization method based on V2X firstly redefines the state vector of the vehicle. In the state vector of the vehicle, it not only includes the state information of the vehicle itself such as the conventional position, speed and acceleration, but also includes the traffic state information such as the signal timing of the target lane, the traffic density of the adjacent lane and the average speed of the traffic. The present invention firstly introduces the V2X-based multi-lane road segment scene and process architecture establishment; then, based on the environment and process, introduces the definition of the state vector of the vehicle in detail; secondly, deduces and defines the cost function and constraint conditions of the vehicle trajectory through formulas; finally, uses The minimum principle is ...

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Abstract

The invention provides an intelligent networked vehicle state vector calculation method based on vehicle-road information coupling. According to the method, a V2X-based multi-lane road segment scene is built, and a vehicle multi-lane space-time trajectory optimization method based on the V2X-based multi-lane road segment scene is designed based on the scene. According to the method, the V2X-basedvehicle space-time trajectory is generated by combining the current state information of the vehicle, the environment information near the vehicle, the signal timing information of the downstream of the road section and the like. According to the method, the space-time track of the passing vehicles in the road section can be optimized and generated in real time according to different road environments and traffic states; the mutual cooperation capability between vehicles is improved, the safety of passing through a road section and the vehicle passing efficiency of an intersection are improved, the energy consumption level of the vehicles is reduced, and a novel solution and a theoretical basis are provided for ensuring the road traffic safety and improving the travel efficiency.

Description

technical field [0001] The invention belongs to the technical field of vehicle-road coordination / arterial traffic flow control, and specifically relates to a method for calculating state vectors of intelligent networked vehicles based on vehicle-road information coupling, which is applicable to any signalized intersection section in an urban road traffic network. Background technique [0002] For the urban traffic road network, the current urban traffic road system controls the traffic flow at the intersection, except for a small number of suburban intersections with small traffic volumes that adopt the self-organizing control method without signals. The intersection is the main node connecting each road section, and the reasonable planning of traffic flow in each road section is also an important part of improving the traffic efficiency of the intersection. The driving behavior of the vehicle during the driving process of the road section can be divided into lane keeping be...

Claims

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Application Information

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IPC IPC(8): G08G1/01G08G1/065G08G1/042G08G1/08G08G1/083
CPCG08G1/0104G08G1/0125G08G1/042G08G1/065G08G1/08G08G1/083
Inventor 王庞伟汪云峰王力张名芳
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY
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