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Limited space lane departure simulation system and alarm test method

A lane departure and simulation system technology, applied in the field of self-driving car testing, can solve the problem of high test cost, and achieve the effect of small test site, high accuracy and high contrast

Pending Publication Date: 2021-01-22
SHANDONG ACAD OF SCI INST OF AUTOMATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the test of the lane departure warning system (LDWS for short) in the advanced assisted driving system of automobiles at home and abroad is mainly carried out outdoors. The test background car and the tested vehicle are used to run in the field according to the actual traffic scene. The alarm test of the virtual channel has very strict requirements on the size and shape of the test site, and the test cost is very high

Method used

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  • Limited space lane departure simulation system and alarm test method
  • Limited space lane departure simulation system and alarm test method
  • Limited space lane departure simulation system and alarm test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1As shown, a limited-space lane departure simulation system includes a test site, a dynamometer 1, a vehicle under test 2 and a projection facility group, wherein the four-wheel output of the vehicle under test 2 is connected to the measurement device of the dynamometer 1, and the vehicle under test 2. It is located on the dynamometer 1 and at one end of the test site. The size of the test site is preferably 15m×100m; the vehicle under test 2 is fixed by a fixture fixture, and the body remains stationary relative to the ground; the projection facility group consists of several projectors. Located above the site and arranged vertically; the projection facility group can play lane line videos to simulate dynamic lane line changes and the driving distance and speed of cars. Among them, the projection facility group can use an array of projection facility combinations placed above the test field to project the lane line image onto the road in front of the veh...

Embodiment 2

[0050] Such as figure 2 As shown, a lane departure simulation system with limited space includes a test site, a dynamometer 1, a vehicle under test 2 and an LED brick screen, wherein the four-wheel output of the vehicle under test 2 is connected to the measuring device of the dynamometer 1, and the vehicle under test 2. It is located on the dynamometer 1 and at one end of the test site. The size of the test site is preferably 15m×100m; the vehicle under test 2 is fixed by a fixture fixture, and the body remains stationary relative to the ground; the LED floor tile screen 5 is located on the ground of a rectangular site for testing Lane, you can simulate the change of dynamic lane line and the driving distance and speed of the car by playing the lane line video. Among them, the LED brick screen can use many LED floor tile screens 5 to splice into 5 groups of LED floor tile screens of the size of the test field. simulation. The lane line image content displayed on the LED flo...

Embodiment 3

[0055] In the test, the tested vehicle 2 needs to send an alarm after crossing the earliest alarm line 8 and before crossing the latest alarm line 9. There is also an alarm critical line 7 and a lane between the earliest alarm line 8 and the latest alarm line 9. Boundary 6, the schematic diagram of the position of each alarm line in the test is as follows image 3 shown.

[0056] Before the test starts, the LDWS system level of the tested vehicle 2 should be classified. According to the provisions in "GB / T 26773-2011 Intelligent Transportation System Lane Departure Warning System Performance Requirements and Testing Methods", the vehicle LDWS can be divided into two categories : Class I system can alarm when the curve radius of curvature is ≥500m and the driving speed is greater than or equal to 72km / h; Type II system can alarm when the curvature radius of the curve is ≥250m and the driving speed is greater than or equal to 61.2km / h Alarm below.

[0057] A curve warning test...

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Abstract

The invention discloses a limited space lane departure simulation system, which comprises a test site, a dynamometer, a tested vehicle, a communication device, a console and a lane simulation device,wherein the four-wheel output of the tested vehicle is connected with the dynamometer, the tested vehicle is located on the dynamometer and at one end of the test site, the tested vehicle is fixed bya clamp, and the vehicle body keeps still relative to the ground; the console is in communication connection with the dynamometer, the tested vehicle and the lane simulation device through the communication equipment; the lane simulation device is provided with a lane line display part and is connected with the console through the communication equipment; and the lane line display part simulates lane lines and an automobile driving state on a road through dynamic change of light. In combination with the lane departure simulation system, the invention further discloses a curve, straight lane and imaginary lane alarm test method, a test process and an evaluation method are provided, and the disclosed test system and method enable the test of vehicle lane departure early warning to be more convenient, reasonable and effective.

Description

technical field [0001] The invention relates to the field of automatic driving vehicle testing, in particular to a limited-space lane departure simulation system and an alarm testing method. Background technique [0002] In recent years, autonomous driving has made milestone progress in the history of human transportation development. With the rapid development of artificial intelligence and the automotive industry, autonomous driving technology has gradually become the focus of the industry. Today, with the rapid development of self-driving cars, testing for self-driving cars has become particularly important. At present, 90% of the mistakes in the driving process of the car are caused by the driver's misoperation. Statistics show that the advanced driving assistance system of the car can significantly reduce the driver's misoperation. [0003] At present, the test of the lane departure warning system (LDWS for short) in the advanced assisted driving system of automobiles...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 李研强陈泓运张子辉王勇郑尚盛
Owner SHANDONG ACAD OF SCI INST OF AUTOMATION
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