Vehicle Tyre Transponder Integration in Bead Structure
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Solution Overview
Problem
Existing vehicle tire transponders are prone to damage from material stress during the manufacturing and operational phases, and conventional integration methods are inefficient, leading to potential signal quality issues and increased cycle times in tire production.
Innovation Solution
The transponder is integrated into the tire bead, specifically positioned between the tire core and apex, where material stress is minimal, using a foil-shaped RFID transponder with flexible plastic carrier film and spiral antennas, embedded between rubber layers, and an adhesion promoter system for enhanced durability and signal quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transponder is integrated into the tire bead between the tire core and apex, then the transponder is protected from material stress, but the integration complexity increases
Solution Approach 1:
The transponder is integrated into the tire bead during the pre-assembly phase, before the tire undergoes vulcanization and operational stress. This preliminary integration ensures the transponder is positioned in a protected location between the tire core and apex before material stresses occur during manufacturing and operation.
Solution Approach 2:
The transponder is nested within the tire bead structure, specifically positioned between the tire core and apex layers. This nesting approach integrates the transponder into the existing tire construction without requiring separate installation steps, thereby protecting it from material stress while maintaining manufacturing efficiency.
2Measurement precision
If the transponder is placed in the upper area of the outside of the apex, then radio connection signal quality improves, but the transponder becomes more exposed to material stress
Solution Approach 1:
The transponder is positioned in a specific location on the upper area of the outside of the apex where the material stress characteristics are favorable. This local positioning optimizes both the radio connection signal quality by being accessible from the outside and provides adequate protection from excessive material stress during tire operation.
3Ease of manufacture
If conventional transponder integration methods are used, then manufacturing simplicity is maintained, but production cycle time increases
Solution Approach 1:
The transponder integration process is merged with the existing tire bead pre-assembly operation. By combining these steps, the transponder is integrated during the normal manufacturing flow without requiring separate installation procedures, thereby maintaining manufacturing simplicity while reducing overall production cycle time.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This arrangement protects the transponder from material stress, ensures high signal quality, and simplifies integration without affecting production cycle times, enabling reliable tire identification and indirect tire pressure monitoring with improved accuracy.
Implementation Method 1
Modern transponders consist of an electronic component or chip, in which sensor elements can be arranged, and an antenna connected to this electronic component
Data Source
Figure 1
Figure 2~3
AI summary
The aim of the invention is to provide a vehicle tyre with a transponder, in which the transponder can be integrated into the vehicle tyre in a simple manner. To this end, the transponder (1) is arranged between the bead filler (5) and an outer ply turnup (17) of the carcass ply, the height dimension (18) in the radial direction of the vehicle tyre between the transponder (1) and the lower side of the bead filler (5) being at least 3 mm.