Intersection vehicle guidance method under mixed traffic condition

A technology of mixed traffic and vehicle guidance, applied in traffic control systems, road vehicle traffic control systems, instruments, etc., can solve problems such as large energy consumption and traffic congestion, achieve low computational complexity, reduce exhaust emissions, and meet Delay Sensitivity Effects

Active Publication Date: 2018-12-11
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for guiding vehicles at intersections under mixed traffic conditions, so as to solve the problems of large energy consumption and traffic congestion of vehicles at intersections under mixed traffic conditions in the prior art

Method used

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  • Intersection vehicle guidance method under mixed traffic condition
  • Intersection vehicle guidance method under mixed traffic condition
  • Intersection vehicle guidance method under mixed traffic condition

Examples

Experimental program
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Effect test

Embodiment 1

[0048] The invention discloses a method for guiding vehicles at an intersection under mixed traffic conditions, which is used for guiding the speed of networked vehicles and ordinary vehicles at the intersection, and a control road section is set in the upstream area of ​​the intersection.

[0049] In this embodiment, the vehicles mentioned include networked vehicles and ordinary vehicles, and intersections such as figure 1 As shown, DSRC roadside equipment is arranged on the control road section to send communication signals to the networked vehicles entering the control road section, and an intelligent terminal for receiving the communication signals is installed on the networked vehicles. A loop coil type detector is arranged on the control road section to detect the speed of ordinary vehicles entering the control road section, and a speed prompt board is also arranged on the control road section.

[0050] In the prior art, the guidance of vehicles at intersections is gener...

Embodiment 2

[0143] In this embodiment, set as figure 1 In the intersection shown, the length of the control section is 100m, and the remaining time of the current green light is 7s. At this time, the vehicle can accelerate through the intersection. The instantaneous speed v when the vehicle enters the control section c Three cars A, B, and C are respectively 21.6km / h, 28.8km / h, and 36km / h, and their speed images are as follows figure 2 As shown, the fuel consumption of car A is 18.5871ml, the fuel consumption of car B is 16.9897ml, and the fuel consumption of car C is 15.3518ml.

[0144] The length of the control road section is 100m, and the remaining time of the current green light is 3s. It is necessary to slow down and wait for the next green light to pass. The instantaneous speed of car A is v c is 36km / h, the instantaneous speed v of car B c is 39.6km / h, the instantaneous speed v of car C c is 43.2km / h, and their speed images are as follows image 3 As shown, the fuel consumpt...

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Abstract

The invention discloses an intersection vehicle guidance method under a mixed traffic condition. At an intersection containing network-connected vehicles and ordinary vehicles, a trigonometric function speed guiding method is used to carry out speed guiding for the network-connected vehicles. The speed guiding of the ordinary vehicles is to guide the driving speed of the ordinary vehicles indirectly through the guiding speed of the network-connected vehicles according to a car-following model. In the method provided in the invention, a mixed motorcade condition is considered, the network-connected vehicles are used as head vehicles and the vehicle speeds of the ordinary vehicles are indirectly guided so that the passing efficiency of the intersection is increased and the tail gas dischargeof motor vehicles in an intersection area is reduced. In the method, an algorithm is simple, operation complexity is low and the sensitivity of the speed guiding method to time delay is satisfied.

Description

technical field [0001] The invention relates to a vehicle guidance method at an intersection, in particular to a vehicle guidance method at an intersection under mixed traffic conditions. Background technique [0002] With the increasingly serious problem of environmental pollution, research on economical driving behavior and control systems based on vehicle-road coordination technology has become a research hotspot in modern intelligent transportation systems. Intersections serve as gathering and distributing intersections for traffic flow, frequent vehicle acceleration and deceleration changes and start-stop behaviors, resulting in unnecessary energy consumption and pollutant emissions of motor vehicles, so the current vehicle guidance method is mainly to guide vehicles how to pass through the intersection Pass without stopping. [0003] Vehicle network technology has broad application prospects in the field of intelligent transportation. It is more urgent to use network...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/015G08G1/052G08G1/0967
CPCG08G1/015G08G1/052G08G1/0967
Inventor 赵祥模杨澜景首才杨楠李腾龙房山魏诚时恒心
Owner CHANGAN UNIV
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