Automated measurement system without prior reference of tread profiles

An automated method aligns tire profiles using geometric transformation and neural networks to improve tire manufacturing efficiency and quality control by eliminating the need for a flat reference, enabling precise and universal tire layer measurements.

FR3168957A1Pending Publication Date: 2026-05-29MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
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Patent Information

Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
Filing Date
2024-11-27
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Current tire manufacturing processes rely on manual, time-consuming visual inspections and require mechanical or computer-assisted flattening of tire cross-sections for measurement, leading to inefficiencies and potential waste due to non-conforming products being manufactured.

Method used

An automated method using a geometric transformation to align a reference profile with the actual tire profile, allowing for precise measurement of tire layers without the need for a flat reference, utilizing a neural network for interface recognition and plastic deformation to reposition measurement points accurately.

Benefits of technology

Enables fast, reliable, and universal quality control of tire manufacturing by automating the measurement process, reducing time and resource waste, and ensuring conformity across different production lines.

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Abstract

The automatic measurement method (200) in layers of a tire product (210) comprises: - obtaining (230) an actual profile of the layers in a tire product; - obtaining (240) a reference profile having at least one measurement dimension; - a geometric transformation (250) of the reference profile by plastic deformation making the reference profile coincide with the actual profile; - a determination (260) of the size of said at least one measurement dimension after said geometric transformation. Figure for the abbreviation: Fig 2
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