Vehicle Tire Foam and Membrane Noise Damping
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Solution Overview
Problem
Conventional vehicle tires experience noise issues due to sound waves generated by tire vibrations, which can be perceived in the passenger compartment, and the integration of electronic modules can lead to weight concentration and imbalance, exacerbating noise and imbalance behavior.
Innovation Solution
A vehicle tire design featuring a foam layer on the inner side with a sound-attenuating membrane connected to an electronic module, where the membrane is coupled to the module to reduce noise and weight, and the foam is used to absorb vibrations, providing mechanical and electrical connections, thus minimizing noise and imbalance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a sound absorber and energy generator are integrated into a tire module with housing, then electronic functionality is provided, but the device complexity and weight increase
Solution Approach 1:
The patent combines the sound absorber and energy generator directly into the tire structure without a separate housing. The sound absorber is attached directly to the tire inner liner, and the energy generator is positioned against the sound absorber, eliminating the need for a protective housing and reducing overall device complexity while maintaining electronic functionality.
Solution Approach 2:
The tire structure itself serves multiple functions: it provides the structural framework, contains the sound absorber for acoustic attenuation, and houses the energy generator for electrical power generation. This multi-functional integration eliminates the need for separate protective housings and reduces device complexity.
2Adaptability or versatility
If electronic modules are mounted on the tire inner side, then electronic functionality is achieved, but weight concentration and imbalance occur
Solution Approach 1:
The patent distributes the weight of electronic components (sound absorber and energy generator) across different locations within the tire structure. The sound absorber is attached to the inner liner at one location while the energy generator is positioned against it, creating a balanced weight distribution that minimizes imbalance during tire rotation.
3Ease of manufacture
If conventional mounting methods are used for electronic modules, then ease of manufacture is maintained, but noise levels remain high
Solution Approach 1:
The sound absorber is integrated directly into the tire structure by attaching it to the inner liner, and the energy generator is positioned against the sound absorber. This merged configuration maximizes acoustic attenuation effectiveness while maintaining simple manufacturing processes that attach components directly to existing tire structures.
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
The solution effectively reduces noise levels by damping sound waves and addresses weight-related imbalance issues, ensuring a quieter and more stable tire performance.
Implementation Method 1
The foam is arranged on the inner side, wherein a membrane formed for attenuating sound waves is connected to the foam
Implementation Method 2
a membrane formed for attenuating sound waves is connected to the foam
Data Source
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AI summary
The invention relates to a vehicle tire (2) with a tread (4), sidewalls (6, 8) and an inner tire (10), wherein foam (12) is arranged on the inner tire (10), wherein a membrane (14) designed to dampen sound waves is connected to the foam (12), wherein an electronic module (16) is arranged directly or indirectly on the inner tire (10), and wherein the membrane (14) is coupled to the electronic module (16).