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Calibration method for tyre uniformity test

A calibration method and uniformity technology, applied in the field of grades, can solve problems such as tire unevenness, uneven density, geometric deformation, etc.

Active Publication Date: 2008-03-19
MESNAC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tires with the above-mentioned structure inevitably have problems such as uneven density and geometric deformation in the constituent materials, which are often called uneven tires.

Method used

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  • Calibration method for tyre uniformity test
  • Calibration method for tyre uniformity test
  • Calibration method for tyre uniformity test

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1, as shown in Figures 2 to 6, the calibration method applied to the tire uniformity test according to the present invention is to use the test device shown in Figure 1 to carry out the uniformity test on the tire before the load cell The linear relationship between the measured voltage value and the radial force and lateral force of the tire is used for calibration.

[0029] Taking any measurement of radial force or lateral force as an example, as shown in Figure 2, the abscissa in the figure represents the force value of the tire under test conditions, and the ordinate represents the value measured and output by the sensor. voltage value.

[0030] Through the actual measured data, it can be observed that in the coordinate system, the voltage signal output by the sensor is linearly related to the pressure value of the actual tire, and a linear curve can be obtained through fitting.

[0031] The calibration method of the uniformity test is to determine the s...

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Abstract

The invention relates to a calibrating method which is applied on a tire uniformity test. The calibration is performed according to the linear relationship existing between the actual measured magnitude of voltage and the tire stress, and through a defined radial force calibrating coefficient and a lateral force calibrating coefficient, the scale conversion is realized, the size of the radial direction and the lateral stress force are derived through the actual measured force sensing value, the testing for a normal size tire and a decision basis, and the wave motion produced in a tire testing and the productive reason is contraposed and analyzed. Before the uniformity test of the tire by utilizing the testing unit is started, the slope of the linear curve is calibrated, the slope of the linear curve includes the radial force calibrating coefficient (set as Kr) and the lateral force calibrating coefficient (set as Kl), the coincidence relation between an electric voltage signal output by the sensor and the actual tire stress force, and the actual radial force and the lateral force stressed by the tire can be measured and calculated through the electric voltage signal.

Description

technical field [0001] The invention relates to a method for calibrating the linear relationship between the measured value of a force measuring sensor and the calibration force, and is specifically applied to the tire uniformity test to realize the method of measuring and judging the tire uniformity level by using a force measuring instrument. Background technique [0002] Tires are the main action-executing components of motor vehicles. The stability of tire performance and compliance with safety design standards will directly determine the safety of personnel using motor vehicles. The tire is a circular rotatable body with a cylindrical section, which is made of multi-layer rubber prefabricated materials with steel cords and composite rubber prefabricated materials through lamination, molding, vulcanization and setting. The tire with the above structure inevitably has problems such as uneven density and geometric deformation in its constituent materials, which is often re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/02G01B21/00
Inventor 高彦臣都强孟鹏李石磊
Owner MESNAC
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