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

Instrumented wheelset continuous measurement method and decoupling algorithm

A force measuring wheelset and measuring method technology, applied in the direction of measuring force, measuring device, instrument, etc., can solve the problems of large error in measurement results, not considering the change of contact point position, etc., and achieve the effect of simple decoupling calculation

Pending Publication Date: 2017-02-22
CHENGDU ANKE TAIFENG TECH CO LTD
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing force-measuring wheel sets in China basically do not consider the position change of the contact point. Calibration experiments and data processing all assume that the contact point is on the rolling circle, and the error of the measurement result is relatively large.

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
  • Instrumented wheelset continuous measurement method and decoupling algorithm
  • Instrumented wheelset continuous measurement method and decoupling algorithm
  • Instrumented wheelset continuous measurement method and decoupling algorithm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The present invention will be described in further detail below in conjunction with specific embodiments and accompanying drawings. The technical solutions and decoupling algorithms in the embodiments of the present invention are clearly and completely described. Apparently, the described embodiments are only some specific embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] The measurement method of the embodiment of the present invention includes a first group of measuring bridges 1 connected to the shaft of the force-measuring wheel set for measuring the rotation angle of the wheel set of the force-measuring wheel set;

[0041] The second group of measuring bridges 6 is connected with the spoke plates of the force measuring wheel set, and is used f...

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 relates to the field of rail vehicle wheel track force measurement and provides a novel instrumented wheelset continuous measurement method and a decoupling algorithm, for solving the problems of not high instrumented wheelset measurement precision, complicated bridge scheme, complex decoupling algorithm and the like. The method comprises the following steps: a rotation angle of an instrumented wheelset is measured by use of a first group of electric bridges composed of one axisymmetric measurement electric bridge which is arranged on an axis and outputs sine waves and another axisymmetric measurement electric bridge which is arranged on the axis and outputs cosine waves; a transverse force and a vertical force of wheel track effects and application point positions are measured by use of another three groups of measurement electric bridges which are arranged at the inner side of a web and only output odd harmonics; and decoupling calculation is performed by use of a kalman filtering method. The bridge scheme and the decoupling algorithm are simple, the measurement cost is low, and the accuracy is higher.

Description

technical field [0001] The invention relates to the field of wheel-rail force measurement of rail vehicles, in particular to a continuous measurement method and a decoupling algorithm for force-measuring wheel-to-wheel-rail force and contact point position. Background technique [0002] The measurement of wheel-rail force is of great significance to dynamics, derailment mechanism, wheel-rail contact theory research and train safety detection. Railway transportation continues to develop in the direction of high speed, heavy load, large volume and high precision, which puts forward higher requirements for the measurement accuracy of wheel-rail force. The dynamometric wheel set method is currently the most direct and accurate wheel-rail force measurement technology. It uses the wheel as the wheel-rail force detection sensor, and realizes the continuous detection of the wheel-rail contact force by measuring the strain at the finite point of the wheel web. During the operation o...

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
IPC IPC(8): G01L1/22
CPCG01L1/2262
Inventor 冯艳波
Owner CHENGDU ANKE TAIFENG TECH CO LTD
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