Vehicle Tire Transponder Bead Integration
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Solution Overview
Problem
Existing vehicle tire transponders are prone to damage from material stresses during the manufacturing and operational phases, leading to inefficiencies in integration and signal quality.
Innovation Solution
The transponder is strategically placed in the tire bead, specifically between the second carcass ply and a flap or bead reinforcement, with a rubberized textile or steel cord layer for protection, and a foil-shaped RFID design with flexible plastic and spiral antennas for enhanced durability and signal alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transponder is placed in conventional locations in the tire, then it can be integrated into the tire structure, but it is exposed to high material stresses during manufacturing and operation
Solution Approach 1:
The patent divides the tire structure into distinct zones based on stress levels, placing the transponder in a specific low-stress segment of the tire bead. This segmentation allows the transponder to be isolated from high-stress areas while remaining integrated into the tire structure.
Solution Approach 2:
The patent introduces a protective layer or intermediate structure between the transponder and the high-stress tire components. This intermediary element shields the transponder from material stresses while allowing the transponder to remain functional and integrated.
2Reliability
If the transponder is placed deeper in the tire bead for protection, then it is shielded from material stresses, but signal quality for radio communication deteriorates
Solution Approach 1:
The patent optimizes the transponder's position in multiple spatial dimensions simultaneously - placing it at a specific radial distance from the apex while maintaining appropriate circumferential and axial positioning. This multi-dimensional placement achieves both protection and signal quality.
Solution Approach 2:
The patent specifies precise parameter ranges for transponder placement, including the distance of at least 5mm from the apex and positioning within the height range of 10-20mm. These parameter optimizations balance protection and signal transmission requirements.
3Reliability
If a rigid protective structure is used to shield the transponder, then material stress protection is improved, but the integration complexity and manufacturing difficulty increase
Solution Approach 1:
The patent employs flexible protective layers or thin film structures rather than rigid enclosures. These flexible elements provide adequate protection from material stresses while maintaining compatibility with the tire's manufacturing processes and overall flexibility.
Solution Approach 2:
The patent integrates the transponder protection function into existing tire structural components rather than adding separate protective structures. The protective function is merged with the tire bead structure or existing reinforcement layers, simplifying manufacturing.
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 permanently shields the transponder from material stresses, ensures high signal quality, and facilitates easy integration, improving the transponder's durability and operational reliability.
Implementation Method 1
a simple radio connection with a high signal quality to the transponder can be implemented
Data Source
Figure 1~2
Figure 3~4
AI summary
The aim of the invention is to provide a vehicle tire having a transponder, in the case of which the transponder can be integrated into the vehicle tire in a simple manner. This aim is achieved, according to the invention, in that the transponder (1) is arranged in the tire bead (8) between a second carcass layer (21) and the outside (24) of the tire, the height dimension (18) in the radial direction of the vehicle tire between the transponder (1) and the lower side of the bead filler (5) being at least 3 mm.