Tyre Electronic Unit Anchoring Body for Stress Uncoupling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing tire monitoring systems face challenges in manufacturing simplicity, mechanical uncoupling from tire stresses, and ease of integration with existing tires, especially for run-flat tires that require monitoring of operating parameters like pressure and distance traveled.
Innovation Solution
An anchoring body with two portions is used to secure an electronic unit and antenna within the tire, featuring a groove for the antenna's inner edge, allowing for simplified manufacturing, improved engagement reliability, and operation under varying conditions, including low pressure, without affecting the tire's operational features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the electronic unit is directly mounted on the tyre internal surface, then the device complexity is reduced, but the reliability of engagement deteriorates due to lack of mechanical uncoupling from tyre stresses
Solution Approach 1:
The anchoring body is divided into two separate portions that are positioned on opposite sides of the electronic unit. This segmentation allows each portion to independently engage with the tyre internal surface, providing distributed mechanical support and uncoupling the electronic unit from direct tyre stresses while maintaining a relatively simple overall structure.
2Manufacturing precision
If the electronic unit is integrated during tyre assembling, then the manufacturing precision is improved, but the ease of manufacture deteriorates due to increased process complexity
Solution Approach 1:
The anchoring body portions are pre-positioned on the tyre internal surface during the tyre assembling process, before the electronic unit is installed. This preliminary action ensures that the anchoring structure is already in place to provide precise positioning and mechanical uncoupling, while the electronic unit itself can be manufactured separately using standard processes.
3Ease of operation
If the antenna is exposed without protection, then the ease of operation is improved for signal exchange, but the reliability deteriorates due to mechanical stresses and deformation effects
Solution Approach 1:
The antenna is enclosed within a protective housing that forms a flexible shell structure. This housing protects the antenna from mechanical stresses and deformation effects while maintaining the antenna's ability to exchange radio-frequency signals with vehicles through the tyre material, balancing protection with operational effectiveness.
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 solution enhances manufacturing simplicity, reliability, and operational efficiency of the electronic unit by minimizing deformation effects from tire operation and allowing power supply through electromagnetic induction, enabling effective monitoring of tire parameters without additional powering units.
Implementation Method 1
the antenna has the task of enabling radio-frequency signal exchange with the vehicles and/or to power the electronic unit and/or the sensor without using independent powering units
Data Source
Figure 1a
Figure 1b
Figure 2a
AI summary
A tyre having a internal surface of substantially toroidal conformation, comprises an electronic device (10) comprising an electronic unit (20) and an antenna (30), the latter being connected with said electronic unit (20) and having an inner perimetral edge (31); an anchoring body (40) mounted on said internal surface (2) for engagement between said electronic device (10) and said tyre (1), said anchoring body (40) comprising at least two portions (41), said electronic unit (20) being arranged between said portions (41). Each of said portions (41) has: a fastening surface (42) secured to the internal surface (2) of said tyre (1), and a groove (43) in which the inner perimetral edge (31) of said antenna (30) is fitted to maintain a constraint between the electronic unit (20) and the anchoring body (40). Also disclosed is a method of installing an electronic unit into a tyre.