Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Examples

Experimental program
Comparison scheme
Effect test

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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 ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com