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Tire Uniformity Improvement by Using the Weibull Distribution to Identify Composite Uniformity Parameters

A technology of Weibull distribution and uniformity, which is applied in the direction of automobile tire testing, tire application, etc., and can solve problems such as tire unevenness

Active Publication Date: 2019-02-15
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, conventional tire building methods have a high chance of producing tire unevenness

Method used

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  • Tire Uniformity Improvement by Using the Weibull Distribution to Identify Composite Uniformity Parameters
  • Tire Uniformity Improvement by Using the Weibull Distribution to Identify Composite Uniformity Parameters
  • Tire Uniformity Improvement by Using the Weibull Distribution to Identify Composite Uniformity Parameters

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Embodiment Construction

[0020] Reference will now be made in detail to embodiments, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and changes can be made in the embodiments without departing from the scope or spirit of the invention. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Accordingly, it is intended that aspects of the present invention cover such modifications and variations.

[0021] review

[0022] Example aspects of the invention are directed to methods and systems for improving tire uniformity. More specifically, one or more characteristics of the composite uniformity parameter may be determined from harmonic magnitudes associated with a plurality of harmonics having the composite uniformit...

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Abstract

Methods and systems for improving the uniformity of a tire are provided. More specifically, one or more characteristics of a composite uniformity parameter can be determined from harmonic magnitudes associated with a plurality of harmonics of the composite uniformity parameter. For instance, a range of a composite uniformity parameter and / or a distribution of amplitudes of a composite uniformity parameter for a set of tires can be determined from harmonic magnitudes associated with selected harmonics of the composite uniformity parameter. According to example aspects of the present disclosure, the one or more characteristics of the composite uniformity parameter can be determined using Weibull distributions of the harmonic magnitudes. Once identified, the one or more characteristics can be used to modify tire manufacture to improve tire uniformity.

Description

technical field [0001] The present invention relates to tire uniformity, and more particularly to improving tire uniformity by using the Weibull distribution to identify one or more characteristics of a composite uniformity parameter from harmonic magnitudes. Background technique [0002] Among certain quantifiable properties of a tire, tire non-uniformity is related to symmetry (or lack thereof) with respect to the tire's axis of rotation. Unfortunately, conventional tire building methods have a high chance of producing tire unevenness. During tire rotation, the inhomogeneities present in the tire structure generate periodically varying forces at the wheel axis. Tire non-uniformity is very important as these force variations are transmitted as significant vibrations to the vehicle and the vehicle occupants. These forces are transmitted through the vehicle's suspension and can be felt on the vehicle's seat and steering wheel, or as noise in the passenger compartment. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/02
CPCB29D30/0061B29D2030/0066B29D2030/0635B29D30/0633G01M17/02
Inventor W·D·马夫布伊
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN