Tire Uniformity Transient Effect Identification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current techniques fail to adequately identify and address transient uniformity effects in tire manufacturing, which evolve over time and contribute to tire non-uniformity, making it difficult to measure and analyze these effects during the manufacturing process.
Innovation Solution
A method and system that utilize uniformity measurements from a set of tires to identify transient uniformity effects, such as those caused by a curing membrane, by analyzing the measurements with processing devices to modify the manufacturing process and improve tire uniformity, including modeling and regression analysis to isolate transient terms from non-transient effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current measurement techniques are used to identify uniformity effects, then tire harmonic uniformity effects and process harmonic uniformity effects can be detected, but transient uniformity effects that evolve over time cannot be adequately identified or addressed
Solution Approach 1:
The patent segments uniformity effects into three distinct categories: tire harmonic effects, process harmonic effects, and transient effects. By separating transient effects from other uniformity effects, the system can specifically target and analyze time-evolving components using regression analysis that isolates transient terms, thereby improving measurement precision for transient effects without losing this critical information category.
Solution Approach 2:
The patent applies dynamic analysis by modeling transient uniformity effects as time-evolving components that change from tire to tire. The system uses dynamic regression techniques that account for the evolving nature of transient effects, allowing the measurement system to capture and analyze these dynamic characteristics rather than treating all uniformity effects as static.
2Productivity
If conventional tire building methods are used, then tire manufacturing can be completed, but non-uniformities in tire structure produce vibrations that reduce ride comfort
Solution Approach 1:
The patent implements feedback by measuring uniformity characteristics of manufactured tires and using this information to identify and correct sources of non-uniformity. The system provides feedback loops that allow continuous improvement of tire uniformity by detecting transient effects and adjusting manufacturing processes, thereby reducing vibrations while maintaining productivity.
Solution Approach 2:
The patent applies parameter changes by modifying manufacturing parameters based on identified transient uniformity effects. The system analyzes uniformity measurements to determine optimal parameter adjustments in the manufacturing process, enabling correction of non-uniformities that cause vibrations without significantly impacting manufacturing efficiency.
3Reliability
If transient effects are analyzed as process harmonics, then some characteristics can be captured, but the evolving nature of transient effects over time is not adequately addressed
Solution Approach 1:
The patent resolves this contradiction by implementing dynamic regression analysis that specifically models the time-evolving nature of transient effects. This dynamic approach improves reliability of transient effect identification by capturing their evolving characteristics, while the systematic regression framework manages analysis complexity through structured mathematical modeling rather than requiring overly complex measurement systems.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Systems and methods for improving tire uniformity through identification of transient effects contributing to the non-uniformity of a tire are provided. More particularly, uniformity measurements can be obtained for a set of a plurality of tires. The uniformity measurements can include contributions from tire harmonic uniformity effects (e.g. effects attributable to tooling elements used during tire manufacture) as well as process harmonic uniformity effects (e.g. effects attributable to process elements used during tire manufacture). Certain of the tire harmonic uniformity effects can be transient effects that change from tire to tire. For instance, the effect attributable to a curing membrane used during the curing process can transiently change from tire to tire. Aspects of the present disclosure are directed to identifying transient effect contributions to uniformity measurements and improving the uniformity of the tire using the identified transient effect contributions.