Tyre Transponder Placement to Reduce Stress and RF Interference
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Solution Overview
Problem
Existing pneumatic tire designs with integrated transponders face issues of stress, deformation, and radio frequency communication interference due to their positioning, which affects their reliability and effectiveness.
Innovation Solution
A pneumatic tire with a transponder embedded within the sidewall, protected by a sleeve of green rubber, positioned close to the body ply and innerliner, minimizing stress and deformation while ensuring reliable radio frequency communication by being circumferentially arranged and radially positioned within specific distances from the tire components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transponder is integrated into the bead structure or body ply, then the transponder is securely attached to the tire, but the transponder is subjected to high stresses and deformations during tire construction and use
Solution Approach 1:
The patent applies local quality by selecting a specific location within the tire structure (between body ply and innerliner, away from bead and tread belt edges) where the transponder experiences minimal stress and deformation. This localized positioning ensures the transponder remains securely attached while avoiding high-stress zones, thereby resolving the contradiction between attachment reliability and stress reduction.
2Reliability
If the transponder is positioned close to metallic components, then the transponder is well-protected and integrated, but radio frequency communication is interfered with and disturbed
Solution Approach 1:
The patent introduces an intermediary approach by positioning the transponder within the tire structure at a location that provides adequate protection while maintaining sufficient distance from metallic components that cause RF interference. The transponder is placed between the body ply and innerliner, away from the bead filler and tread belt edges, creating an optimal zone that balances protection and communication effectiveness.
3Device complexity
If the transponder is embedded within the body ply or bead filler, then the transponder is integrated into the tire structure, but the transponder cannot minimize stresses and deformations during tire construction and use
Solution Approach 1:
The patent applies local quality by selecting a specific location within the tire structure (between body ply and innerliner, away from bead and tread belt edges) where the transponder experiences minimal stress and deformation. This localized positioning ensures the transponder remains securely attached while avoiding high-stress zones, thereby resolving the contradiction between attachment reliability and stress reduction.
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 design minimizes stress and deformation on the transponder, reduces radio frequency interference, and allows for efficient communication over distances of up to 3 meters when not on a metallic rim and 2 meters when on a metallic rim, without impacting tire performance or durability.
Implementation Method 1
a transponder (i.e., an electronic device suitable for communicating in radio frequency) which permits remote communication
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Pneumatic tyre (1) having: a toroidal carcass (2), which consists of a body ply (3) that is partially folded onto itself and therefore having two lateral flaps; two annular beads (4), each of which is surrounded by the body ply (3) and has a bead core (5) and a bead filler (6); an annular tread (7); a pair of sidewalls (11); a pair of abrasion gum strips (12); an innerliner (10) which is impermeable to air and is arranged within the body ply (3); and a transponder (13) which is arranged between the body ply (3) and the innerliner (10) at a flap of the body ply (3) and is arranged at a distance (D1, D2) of less than 7 mm from an edge (19) of the body ply (3).