Vehicle Tyre Transponder Nesting for Stress Protection
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Solution Overview
Problem
Conventional methods for integrating transponders into vehicle tires are prone to mechanical stress and damage, affecting their reliability and signal quality, and require complex integration processes that do not efficiently protect the transponder from material stress during tire operation.
Innovation Solution
The transponder is strategically placed between the outer ply turn-up of the carcass ply and the rim strip component, with a radial height of at least 3 mm, and optionally embedded in a flexible foil-shaped RFID form with spiral antennas, protected by a rubber layer and adhesion promoter system, allowing for easy integration and high signal quality connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transponder is integrated into the tire using conventional methods, then the transponder can be installed in the tire, but the transponder is exposed to high material stresses and mechanical damage during tire operation
Solution Approach 1:
The transponder is nested within multiple protective layers of the tire structure. Specifically, it is positioned between the carcass ply and the bead, with the carcass ply forming an outer layer that encloses the transponder. This nested arrangement places the transponder in a protected zone surrounded by robust tire components that shield it from external mechanical stresses and damage during tire operation
Solution Approach 2:
The transponder is positioned at a specific radial height dimension within the tire bead structure, at least 3 mm from the underside of the bead. This dimensional placement in the radial direction creates a protected spatial zone that reduces exposure to harmful mechanical stresses while maintaining the transponder's functionality for radio communication and identification purposes
2Reliability
If the transponder is positioned deeper in the tire bead for protection, then mechanical stress protection is improved, but radio signal transmission quality deteriorates
Solution Approach 1:
The transponder is positioned at an optimized radial height of at least 3 mm from the underside of the bead, creating an ideal spatial zone that balances protection and signal transmission. This dimensional placement ensures the transponder is sufficiently shielded by the tire structure while remaining close enough to the outer surface to maintain high-quality radio signal transmission for identification and monitoring functions
3Adaptability or versatility
If the transponder is integrated into the tire structure, then tire identification and monitoring functions are enabled, but the integration process becomes complex and affects production cycle time
Solution Approach 1:
The transponder is integrated into the tire structure during the pre-assembly phase, specifically between the carcass ply and the bead before the final vulcanization process. This preliminary integration allows the transponder to be positioned correctly and secured within the tire structure without requiring additional post-manufacturing steps, thereby enabling tire identification functions while maintaining efficient production cycle times
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 effectively shields the transponder from mechanical stress, ensures reliable signal transmission, and simplifies integration without affecting production cycles, enhancing durability and signal quality while enabling automatic tire identification and pressure monitoring systems.
Implementation Method 1
The transponder can be read very effectively with an external reader. This allows for a simple radio connection to the transponder with high signal quality.
Data Source
Figure 1
Figure 2~3
AI summary
In order to provide a vehicle tire with a transponder in which the transponder can be easily integrated into the vehicle tire, it is proposed that the transponder (1) be arranged between the outer ply (17) of the carcass ply (6) and a rim strip component (30), wherein the height dimension (18) in the radial direction of the vehicle tire between the transponder (1) and the underside of the core rider (5) is at least 3 mm.