RFID Transponder Angular Placement in Vehicle Tyres
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Solution Overview
Problem
Existing vehicle wheel tire RFID transponders face difficulties in remote communication, particularly when the tire is mounted on a vehicle, requiring close proximity for effective reading.
Innovation Solution
Positioning the RFID transponder at an angle of 90° or greater with respect to the junction zone of the rubber on the internal face of the tire, preferably on the sidewall bearing DOT markings, enhances communication quality and allows reading at greater distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the transponder is placed in the tire sidewall, then the tire information can be read remotely, but the reading distance is limited and requires close proximity to the tire
Solution Approach 1:
The patent changes the angular parameter of transponder placement relative to the junction zone. By specifying that the transponder should form an angle of 90° or more (preferably 135°-180°) with the junction zone, the patent optimizes the electromagnetic field distribution and signal transmission characteristics, thereby extending the reading distance and improving communication quality without adding operational complexity.
2Ease of manufacture
If the transponder is placed close to the junction zone, then the manufacturing positioning is simplified, but the communication quality and reading distance deteriorate
Solution Approach 1:
The patent establishes a specific angular parameter range (90° or more, preferably 135°-180°) for transponder placement relative to the junction zone. This parameter optimization simultaneously achieves good manufacturing positioning (the junction zone remains a clear reference point) and excellent communication quality (the 90°+ angle ensures optimal electromagnetic field distribution and signal transmission).
Solution Approach 2:
The patent introduces asymmetric positioning by defining the transponder's angular relationship to the junction zone rather than using symmetric placement. This asymmetric angular specification (90° or more) creates an optimal configuration that balances manufacturing ease with communication reliability, as the junction zone provides a natural asymmetric reference point in the tire structure.
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 significantly improves the quality and distance of remote communication with the transponder, making it easier to read tire information without physical proximity to the tire.
Implementation Method 1
a radiofrequency transponder forming an angle greater than or equal to 90° with the junction zone around a main axis of the tire
Data Source
Figure 1~6
AI summary
The vehicle tyre comprises: - a mass of rubber having a region of connection (16) in the circumferential direction on an internal face of the tyre, and - a radio frequency transponder (12) making an angle (T) greater than or equal to 90° with the region of connection about a main axis (8) of the tyre.