Signalized intersection traffic signal lamp and vehicle track control method

A technology of traffic signal lights and vehicle trajectories, applied in the field of intelligent networked vehicles, can solve the problem of less research on simultaneous optimization of vehicle trajectories and signal lights

Active Publication Date: 2020-10-13
TONGJI UNIV
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  • Application Information

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Problems solved by technology

The current traffic control methods focus on the control of signal lights, and there are fe

Method used

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  • Signalized intersection traffic signal lamp and vehicle track control method
  • Signalized intersection traffic signal lamp and vehicle track control method
  • Signalized intersection traffic signal lamp and vehicle track control method

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Embodiment

[0154] This embodiment provides a traffic signal light at a signalized intersection and a vehicle trajectory control method, such as figure 1 shown, including the following steps:

[0155] Step S1: Obtain vehicle information in the target area;

[0156] Step S2: Construct a mixed integer linear programming model with the goal of minimizing the intersection delay, use the vehicle information in the target area to solve the mixed integer linear programming model, and obtain the signal light status and the time when the vehicle arrives at the intersection

[0157] Step S3: Construct the optimal control model of the trajectory of the leading vehicle in the convoy, and use the time when the vehicle arrives at the intersection Solve the optimal control model of the trajectory of the leading vehicle in the fleet to obtain the trajectory of the leading vehicle in the fleet; construct the optimal control model of the following vehicle in the fleet, and use the time when the vehicle...

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Abstract

The invention relates to the field of intelligent networked automobiles, in particular to a rolling optimization method for signal intersection traffic signal lamp and vehicle trajectory control, andeach time interval comprises the following optimization steps: acquiring vehicle information in a target area; solving the mixed integer linear programming model by using the vehicle information in the target area to obtain the signal lamp state and the intersection arrival time of the vehicle; solving the motorcade head vehicle trajectory optimal control model by using the moment when the vehiclearrives at the intersection to obtain a motorcade head vehicle trajectory, and solving the motorcade following vehicle optimal control model by using the moment when the vehicle arrives at the intersection to obtain a motorcade following vehicle trajectory; achieving vehicle track control through the head vehicle track and the following vehicle track of the motorcade, and achieving traffic signallamp control through the signal lamp state. Compared with the prior art, the vehicle track and the traffic signal lamp at the signalized intersection are optimized at the same time, so that the signal lamp and the vehicle track are controlled more accurately.

Description

technical field [0001] The invention relates to the field of intelligent networked vehicles, in particular to a traffic signal light at a signalized intersection and a vehicle trajectory control method. Background technique [0002] With the increase of traffic demand, traffic congestion has gradually developed into a world-class problem in recent years, causing serious environmental problems and economic losses. In urban transportation networks, intersections are generally considered to be bottlenecks in traffic flow. So improving traffic signals at intersections can have a significant impact on the efficiency of urban transport systems. [0003] In recent years, with the development of intelligent network technology, vehicle-to-vehicle communication (V2V) and vehicle-to-road communication (V2I) have provided new data sources for traffic control. Governance offers new solutions. The current traffic control methods focus on signal light control, and there are few studies ...

Claims

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Application Information

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IPC IPC(8): G08G1/081G08G1/082G08G1/095G08G1/00G06N7/00
CPCG08G1/081G08G1/082G08G1/095G08G1/20G06N7/00Y02T10/40
Inventor 俞春辉陈子轩马万经王玲
Owner TONGJI UNIV
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