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Calibration method for tyre uniformity test

A calibration method and uniformity technology, applied in the level field, can solve problems such as geometric deformation, uneven density, uneven tires, etc.

Active Publication Date: 2010-04-14
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] Example 1, such as Figure 2 to Figure 6 As shown, the calibration method of the present invention applied to tire uniformity test is used such as figure 1 Before the test device shown performs the uniformity test on the tire, the linear relationship existing between the measured voltage value of the load cell and the radial force and lateral force of the tire is calibrated.

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

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

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

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PUM

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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 testingand 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 bythe 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 actual measured value of a load cell and the calibration force, and is specifically applied to a tire uniformity test to realize a method for measuring and judging the uniformity level of the tire by 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 ring-shaped rotatable body with a cylindrical section, which is formed by laminating, forming, vulcanizing and shaping multiple layers of rubber prefabricated materials with steel cords and composite rubber prefabricated materials. The tires with the structure described inevitably have problems such as uneven density and geometric deformation in their constituent materials, that is, th...

Claims

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Application Information

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