RFID Tire Cover Layer for Static-Resistant Signal Transmission
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Solution Overview
Problem
Existing tires face challenges in managing tire-related information efficiently, particularly in hybrid or electric vehicles, where static electricity generation affects driving stability and precise control, and there are limitations in mass production, usage, and information management.
Innovation Solution
Incorporating an electronic element unit with an IC chip and a radio wave control cover layer, which includes a rubber-based base material and resistance control materials like silica, to enhance signal transmission and reception, improving signal recognition distance and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If an RFID module is embedded in the tire to manage tire information, then information management capability is improved, but signal transmission quality deteriorates due to static electricity interference and corrosion
Solution Approach 1:
A coating layer is introduced as an intermediary between the antenna and the tire body. This coating layer serves multiple functions: it protects the antenna from corrosion by rubber compounds, provides electrical insulation to prevent static electricity interference, and maintains RFID signal transmission quality. The coating layer acts as a mediator that resolves the conflict between information management capability and signal transmission reliability.
Solution Approach 2:
The coating layer is formed as a composite material structure with specific properties: it has high electrical resistance (10^7 Ωm or more) to block static electricity, good adhesion to the antenna plating layer, and compatibility with rubber compounds. This composite coating structure enables simultaneous achievement of corrosion protection, electrical insulation, and signal transmission.
2Ease of manufacture
If the antenna is placed in direct contact with the rubber compound to improve adhesion, then manufacturing simplicity is improved, but corrosion resistance deteriorates
Solution Approach 1:
The coating layer serves as an intermediary between the antenna plating layer and the rubber compound. It provides good adhesion to both surfaces while protecting the antenna from corrosion. The coating layer enables the antenna to be integrated into the tire structure without direct contact corrosion, maintaining both ease of manufacture and corrosion resistance.
3Reliability
If topping rubber with different permittivity is used to enhance RFID external directivity, then communication capability is improved, but device complexity increases
Solution Approach 1:
The coating layer performs multiple functions simultaneously: it provides electrical insulation, protects from corrosion, maintains adhesion, and enhances RFID communication capability through its dielectric properties. By making the coating layer multi-functional, the patent avoids the need for separate structures for each function, thereby improving communication capability without significantly increasing device complexity.
4Reliability
If more electronic parts are added to vehicles to improve driving control, then driving stability is improved, but static electricity generation increases
Solution Approach 1:
The patent converts the harmful effect of static electricity into a beneficial outcome. The coating layer is designed with high electrical resistance specifically to block static electricity pathways. By introducing this resistant coating, the harmful static electricity generated by electronic parts is prevented from interfering with the RFID system, thereby protecting driving stability while allowing continued use of electronic control systems.
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
Facilitates easy management of tire information, enhances driving stability by reducing signal interference, and improves signal recognition distance while maintaining durability.
Implementation Method 1
the radio wave control cover layer may include a resistance control material so that electrical resistance thereof is controlled to be high
Implementation Method 2
the radio wave control cover layer may include a rubber-based base material and a resistance control material
Data Source
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AI summary
Provided is a tire mounted on a moving means, and the tire includes a tire body including a tread region that faces a road surface during at least the driving of the moving means, and an electronic element unit disposed in the tire body and configured to transmit or receive one or more signals, wherein the electronic element unit includes a radio wave control cover layer that is separate from the tire body and disposed in the tire body.