Tunnel test system and method based on V2X

A test method and tunnel technology, applied in the field of V2X-based tunnel test system, can solve problems such as errors in vehicle test results, and achieve the effect of improving accuracy

Active Publication Date: 2020-07-03
CHINA AUTOMOTIVE ENG RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of errors in vehicle test results caused by environmental influences in the prior art in closed environments such as tunnels, the present invention provides a tunnel test system and method based on V2X, which can test vehicles in a closed environment, and Improve the accuracy of test results

Method used

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  • Tunnel test system and method based on V2X
  • Tunnel test system and method based on V2X
  • Tunnel test system and method based on V2X

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0030] The tunnel test method based on V2X, as attached figure 1 shown, including the following steps:

[0031] The test preparation steps include the following steps:

[0032]S101: Select a test site. In this embodiment, a tunnel is used as a test site as an example. UWB fixed base stations and roadside equipment (RSU) are arranged at both ends of the tunnel entrance, and several UWB fixed base stations are arranged at intervals in the tunnel. In this embodiment, the test vehicle is defined as HV, as attached figure 2 shown. The distance between UWB fixed base stations is 50 meters. The distance between UWB fixed base stations is related to the positioning accuracy of the test vehicle. The distance between UWB fixed base stations can be adjusted according to the needs, so as to adjust the positioning accuracy of the test vehicle.

[0033] S102: Select a test vehicle. The test vehicle includes a test vehicle. The test vehicle is equipped with a V2X communication module and...

Embodiment 2

[0040] The difference between this embodiment and the first embodiment is that the reaction performance of the test vehicle in a closed environment such as a tunnel is also tested.

[0041] The V2X-based tunnel test method also includes an emergency test step.

[0042] The test preparation step also includes the following steps:

[0043] S103: The test vehicle is also equipped with a data acquisition system. image 3 As shown, the UWB mobile base station is integrated in the data acquisition system. In this embodiment, the data acquisition system is also integrated with a UDP-CAN conversion module, an IMU, a wheel speed sensor and a camera, and the data acquisition system is used to collect the driving state information of the test vehicle. The test vehicle also includes a background car. The background car is equipped with a V2X communication module and a driving control module. The test vehicle and the background car communicate through the V2X communication module. The dr...

Embodiment 3

[0054] The difference between the present embodiment and the second embodiment is that, in addition to conventional emergencies during the driving process of a V2X-based vehicle, due to the special structure of the tunnel and changes in the external environment, there will also be other situations, such as Some people use WIFI, the changes and flickering of lights in the tunnel, the exhaust emission of large trucks, etc. The use of WIFI will occupy the frequency band used by V2X, causing communication problems, and the changes and flickering of lights and the emission of exhaust will cause changes in light and shade. For vehicles using VX technology, the light and shade changes will cause errors in the vehicle's recognition of the external environment.

[0055] In this embodiment, the test preparation step of the V2X-based tunnel test method further includes the following steps:

[0056] S104: The test car is also equipped with WIFI communication equipment, and the rear of the...

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Abstract

The invention relates to the technical field of vehicle performance testing, in particular to a tunnel testing system and method based on V2X, and the method comprises the following steps: a testing preparation step: setting UWB fixed base stations at intervals in a tunnel; a test vehicle is selected, the test vehicle comprises a test vehicle body, and the test vehicle body is provided with a V2Xcommunication module and a UWB mobile base station; a driving test step: enabling the test vehicle to drive in the tunnel at a set speed, communicating with the roadside equipment, and recording a feedback result of the UWB mobile base station and a driving result of the test vehicle; and a test analysis step: judging whether the communication between the test vehicle and the roadside equipment isnormal or not according to the feedback result, and determining that the test succeeds when the communication is normal and the driving result is successful driving. By the adoption of the scheme, the problem that in the prior art, in a closed environment such as a tunnel, errors exist in a vehicle test result due to environmental influences is solved, so that the vehicle is tested in the closedenvironment, and the accuracy of the test result is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle performance testing, in particular to a V2X-based tunnel testing system and method. Background technique [0002] With the development of automobile technology, people's functional requirements for automobiles are no longer limited to the ability to drive, but they hope to obtain more functions to ensure the safety of drivers or vehicles. It is in this environment that V2X technology emerged. V2X technology is a special embodiment of the Internet of Things, that is, the information interaction between the vehicle and the outside world, and the information of the outside world can be obtained through information interaction. In the event of an emergency, the vehicle can be controlled. Quickly make adjustments to avoid traffic accidents and ensure the safety of drivers and vehicles. At present, V2X technology is a hotspot of intelligent vehicle networking. When people have higher requirements for i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/08H04W4/44G01M17/007
CPCG01M17/007H04W24/08H04W4/44
Inventor 郑雪松陈涛张强杨良义黄俊富罗浩轩任全森韩中海李树胡瑞陈军
Owner CHINA AUTOMOTIVE ENG RES INST
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