Heavy Goods Vehicle Tyre Bead Layout for Robust RF Module Reading
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Solution Overview
Problem
Existing tire designs with integrated radio frequency communication modules face challenges in achieving robust data transmission and mechanical durability due to the proximity of the communication module to metal reinforcing wires, which affects reading reliability and tire endurance.
Innovation Solution
The radio frequency communication module is positioned within the second layer of rubber mixture at a distance greater than 2 mm from metal reinforcement wires, optimizing data transmission robustness and mechanical protection by avoiding the maximum bending zone of the bead, thus enhancing both communication performance and tire endurance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the radiofrequency communication module is positioned close to the bead wire for compact design, then device complexity is reduced, but reading reliability deteriorates due to interference from metal reinforcing wires
Solution Approach 1:
The patent applies local quality by creating a specific zone with different electromagnetic properties. A dielectric layer is positioned between the radiofrequency communication module and the metal bead wire, locally modifying the electromagnetic environment to prevent signal interference while maintaining overall device compactness.
Solution Approach 2:
The patent introduces a dielectric layer as an intermediary element between the radiofrequency communication module and the metal bead wire. This intermediary structure mediates the electromagnetic interaction, preventing harmful interference from the metal wires while allowing the module to remain in a compact position near the bead area.
2Manufacturing precision
If the communication module is positioned in high-stress areas for structural integration, then manufacturing precision is improved, but tire endurance deteriorates due to mechanical stress on the module
Solution Approach 1:
The patent applies local quality by identifying and protecting a specific high-stress zone within the bead area. The radiofrequency communication module is positioned within the second rubber layer at a location that, while precisely integrated into the tire structure, avoids the maximum bending zone near the bead wire, thus maintaining manufacturing precision while reducing mechanical stress.
Solution Approach 2:
The patent implements beforehand cushioning by embedding the communication module within the second rubber layer, which acts as a protective cushioning layer. This positioning anticipates and mitigates mechanical stresses before they reach the module, protecting it from damage while maintaining precise integration into the tire structure.
3Strength
If the communication module is embedded deep in rubber layers for protection, then mechanical protection is improved, but radiofrequency communication robustness deteriorates due to signal attenuation
Solution Approach 1:
The patent applies local quality by creating a favorable electromagnetic environment at the specific location where the module is embedded in the second rubber layer. The combination of the dielectric layer near the bead wire and the module's position within the rubber matrix creates localized zones that optimize both mechanical protection and radiofrequency signal transmission.
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 positioning improves the robustness of radio frequency communication with external readers and extends tire endurance by reducing mechanical stress on the communication module, while also simplifying the installation process and reducing manufacturing cycle time.
Implementation Method 1
a radiofrequency communication module (20) arranged in the bead inside the second layer of rubber compound
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a tyre for a heavy goods vehicle, comprising a radial carcass reinforcement formed by a single layer of metal reinforcement elements, turned up around a bead wire such as to be anchored in each of the beads. According to the invention, the turn-up of the carcass reinforcement layer and the main part of the carcass reinforcement layer are coupled to one another and a passive radio-frequency communication module is disposed facing the coupling zone and embedded in the rubber mixture layer externally adjacent to the turn-up of the carcass reinforcement layer.