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Filtering method for improving data quality of tire geometry measurements

A technique for geometric measurement, tires, applied in the direction of automobile tire testing, measuring devices, measuring arrangements of variables, etc.

Active Publication Date: 2015-08-19
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While known techniques for data filtering have been developed, no design has emerged that generally contains all of the desired properties, as proposed below in light of the subject technology

Method used

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  • Filtering method for improving data quality of tire geometry measurements
  • Filtering method for improving data quality of tire geometry measurements
  • Filtering method for improving data quality of tire geometry measurements

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Embodiment Construction

[0044] As discussed in the Summary section, the present subject matter generally relates to systems and methods for improving the quality of data measurements obtained when measuring the surface of a rotating object such as a tire of. Specifically, data quality can be improved by filtering tire-related geometric features or other data outliers. Some embodiments disclosed herein discuss such steps and features in the context of specific tire geometric measurements such as runout, although it should be appreciated that the presently disclosed techniques can generally be applied to improve the performance of any set of geometric measurements. data quality.

[0045] Selected combinations of aspects of the disclosed technology correspond to many different embodiments of the invention. It should be noted that each exemplary embodiment presented and discussed herein does not imply limitations on the subject matter. Features or steps illustrated or described as part of one embodime...

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Abstract

A tire measurement system includes a computer with various memory / media elements for storing raw and transformed tire measurement data (e.g., a data set of measured radial run-out values) as well as software in the form of computer-executable instructions, which are executed by a processor to implement a variety of functions, including filtering selected run-out values within the obtained data set that spike above adjacent measurements, transforming the run-out values into two-dimensional form representative of tire curvature, identifying selected ones of the two-dimensional values that lie on a convex hull surrounding the entire set of values, performing one-dimensional interpolation of the identified selected ones of the two-dimensional values that lie on the convex hull to obtain a final data set of filtered run-out measurements, and decomposing the final data set of filtered run-out measurements into a plurality of harmonic components.

Description

technical field [0001] In general, the subject matter of the invention relates to a filtering method for improving the data quality of tire geometric measurements. Specifically, the disclosed technology is used for automatic filtering of tire parameter data to eliminate geometric features in the tire or related installation environment, such as tread grooves, tread ridges, tread bead, and the like. Background technique [0002] During tire manufacturing and testing, it is often necessary to measure various geometric characteristics and performance parameters related to tires. Measurements of geometric properties of the tire during rotation, including but not limited to parameters such as runout, mass imbalance, and uniformity measurements, can often be used to help identify potential causes of vehicle vibration at high and low speeds. Geometric measurements associated with the tire can also help characterize phenomena such as tread wear and the like throughout the life of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/02G01B11/02
CPCG01B11/026G01M17/027G01D1/02
Inventor V·S·尼克尔森A·F·托马斯
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN