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Software-in-the-loop testing method for simulation-based automatic driving tracking algorithm

A test method and automatic driving technology, applied in the direction of instruments, control/adjustment systems, simulators, etc., can solve the problems of poor simulation effect, no real-time update and interaction of simulation data, and low test efficiency, so as to improve test efficiency, Effects of widening application fields and reducing energy consumption

Active Publication Date: 2021-10-08
清华大学苏州汽车研究院(吴江) +1
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AI Technical Summary

Problems solved by technology

[0003] At present, the existing unmanned vehicle simulation test methods are limited to using simulation data calculation results to evaluate and analyze the performance of unmanned driving test algorithms. Because the simulation data is not updated and interacted in real time, the test efficiency is low and the evaluation results are not enough. Accurate and comprehensive, the simulation effect is relatively poor
It uses the simulated vehicle trajectory in the vehicle motion simulator to evaluate the performance of the unmanned driving algorithm. This single trajectory evaluation cannot reflect the real speed change of the vehicle during the driving process.

Method used

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  • Software-in-the-loop testing method for simulation-based automatic driving tracking algorithm

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Embodiment

[0034] The preferred embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0035] Such as figure 1 As shown, the test simulation system includes simulation software to simulate the test scene and vehicle dynamics model, set the communication module to communicate with the tracking algorithm, and use the asynchronous communication mode to receive information such as the steering wheel, vehicle speed or brake and accelerator of the vehicle, and then control the vehicle dynamics model , and finally feed back the vehicle positioning, heading angle, and speed to the tracking algorithm software. It can test the function and performance of its tracking system in real time. Real-time test and evaluation of the tracking function, and analyze the problems and defects of its algorithm. The invention can reduce the cost required in the test process, and reflect the performance of the tracking algorithm in the real test work...

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Abstract

The invention discloses a software-in-the-loop testing method of a simulation-based automatic driving tracking algorithm, comprising: establishing a simulation scene of the tracking algorithm, generating simulation data of the simulation scene; visualizing the simulation data, and displaying the test path and the actual track The difference in; the tracking function score is given according to the degree of track coincidence. Provide a real-time simulation test environment for the automatic driving tracking algorithm, obtain real-time vehicle speed and trajectory during the simulation process, improve the testing efficiency of the automatic tracking algorithm, reduce test energy consumption, and obtain comprehensive evaluation results.

Description

technical field [0001] The invention relates to the technical field of automatic driving testing, in particular to a software-in-the-loop testing method based on a simulation-based automatic driving tracking algorithm. Background technique [0002] In recent years, unmanned driving-related technologies have received widespread attention. Since unmanned vehicles often face high risks when testing, hardware reliability, algorithm robustness, etc., the generalization ability for complex environments will have a great impact on the final effect of autonomous driving algorithms. . At the same time, since the autonomous driving algorithm contains multiple modules, the compatibility between each module will also affect the actual use of the algorithm. In addition, testing unmanned driving algorithms in some dangerous scenarios is very dangerous and will greatly increase the cost of testing. Therefore, before the actual road test, it is necessary to establish a simulator test pla...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 鲍彦莅黄晟
Owner 清华大学苏州汽车研究院(吴江)
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