Road spectrum based method for extracting quantified road characteristic parameters

A technology of characteristic parameters and extraction methods, applied in the direction of measuring devices, instruments, etc., can solve the problems of inaccurate qualitative description, low efficiency, and cumbersome, etc., and achieve the effect of easy reference and evaluation

Active Publication Date: 2011-06-15
CHINA AUTOMOTIVE ENG RES INST
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Problems solved by technology

[0004] The disadvantage of the above method is that the quality of a pavement can only be de-qualified individually through the pavement spectrum curve
This is particularly cumbersome and inefficient when the test simulation needs to conduct statistical analysis and comparative research on a large amount of road surface data to determine the road surface to be selected.
At the same time, the qualitative description is not precise enough

Method used

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  • Road spectrum based method for extracting quantified road characteristic parameters
  • Road spectrum based method for extracting quantified road characteristic parameters
  • Road spectrum based method for extracting quantified road characteristic parameters

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Embodiment Construction

[0019] The following detailed description will be given with reference to the accompanying drawings in conjunction with the embodiments, so as to have a deeper understanding of the purpose, features and advantages of the present invention. For the convenience of calculation and elaboration, a small part of road surface data in the measured road surface is randomly selected as an example for introduction.

[0020] Such as figure 1 Shown:

[0021] A specific embodiment of a method for extracting quantitative road surface characteristic parameters based on road spectrum has the following steps:

[0022] S101: Pavement data collection: collecting and testing the simulated road profile space domain data through the road surface data collection instrument and constructing the road surface profile space domain curve;

[0023] S102: road spectrum extraction: performing fast Fourier transform on the profile space domain curve in S101 to generate a power spectral density curve, that i...

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Abstract

The invention provides a road spectrum based method for extracting quantified road characteristic parameters. The method comprises the steps of road data acquisition, road spectrum extraction, bandpass filtering and quantified road characteristic parameter extraction. The method has the following beneficial effects: extraction of the road characteristic parameters is realized; the quantified characteristic parameters accurately representing the quality of the roads are generated; and the characteristic parameters can accurately reflect the grade and quality of the roads, are convenient for the users to use for reference and evaluation when using the road data in experimental simulation and especially have very obvious advantages during statistical analysis and contrast studies of vast road data.

Description

technical field [0001] The invention belongs to the field of road engineering and vehicle engineering, and in particular relates to a method for extracting quantified road surface evaluation parameters based on road spectrum for vehicle engineering. Background technique [0002] With the rapid development of the automobile industry, my country has become a major producer of the world's automobile industry. It has gone through the stages of imitation, technology introduction and processing and production, and has entered a new stage of independent research and development and independent innovation. In the field of automotive engineering in the independent research and development stage, road data is the main external excitation source for vehicles. Whether it is various indoor test bench performance tests or virtual simulation analysis in the computer, it is inseparable from the support of basic road data. Therefore, it is very important to evaluate the quality and grade of ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/30
Inventor 段虎明马颖石锋张开斌谢飞
Owner CHINA AUTOMOTIVE ENG RES INST
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