Embedded Split-Ring Resonators for Tire Wear and Deformation Sensing

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Solution Overview

Problem

Current vehicle sensors, such as tire pressure monitoring systems, fail to provide the necessary fidelity for high-performance or fully autonomous driving applications, particularly in detecting rapid component wear and environmental changes without human intervention.

Innovation Solution

Incorporating split-ring resonators made from 3D monolithic carbonaceous growth within vehicle components to detect physical changes through electromagnetic stimulus signals, which resonate at specific frequencies based on material properties, allowing for real-time monitoring of deformation, wear, and environmental conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional sensors are used for vehicle component monitoring, then device complexity is reduced, but measurement precision and reliability are insufficient for high-performance applications

Engineering Contradiction:
Improvedetection fidelityVSAvoidsensor system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces traditional mechanical/electronic sensors with electromagnetic resonance-based sensing. Split-ring resonators and carbonaceous materials respond to physical changes (stress, strain, temperature) through shifts in their electromagnetic resonance frequency, eliminating the need for complex mechanical sensor assemblies and enabling high-precision measurements through frequency detection

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The invention utilizes changes in electromagnetic resonance frequency as a parameter to detect physical characteristic changes in vehicle components. By monitoring frequency shifts of resonators embedded in tires or structural members, the system achieves high measurement precision for stress, strain, and environmental conditions without requiring complex sensor electronics

Inventive Principle:
Principle #35Parameter changes

2Reliability

If traditional tire pressure monitoring systems are used, then ease of operation is maintained, but reliability for detecting rapid component wear and environmental changes is insufficient

Engineering Contradiction:
Improvecomponent wear detection reliabilityVSAvoidmonitoring system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the sensing function directly into the vehicle component structure itself. Split-ring resonators are embedded within tire plies or structural members, and carbonaceous materials are integrated into the component material matrix. This integration ensures the sensor moves with the component, providing reliable real-time data on component condition and environmental changes without requiring separate monitoring systems

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The electromagnetic resonance-based sensor system provides multiple detection capabilities simultaneously. A single resonator can detect stress, strain, temperature, and component wear through frequency analysis, eliminating the need for multiple specialized sensors and improving reliability through multi-parameter monitoring from a unified system

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Enables precise and continuous monitoring of tire conditions and environmental changes, enhancing vehicle safety and performance by providing accurate data for autonomous systems without the need for human intervention.

Implementation Method 1

Each split ring resonator may be formed from a three-dimensional (3D) monolithic carbonaceous growth and respond to an electromagnetic stimulus signal emitted from a user device to generate an electromagnetic return signal

Methodology Applied
Scientific EffectElectromagnetic resonance: Resonance

Implementation Method 2

The split ring resonator may resonate at a first frequency in response to the electromagnetic stimulus signal when the material is in a first state and may resonate at a second frequency in response to the electromagnetic stimulus signal when the material is in a second state

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS11892372B2Sensors incorporated into semi-rigid structural members to detect physical characteristic changes
Publication Date: 2024.02.06 LYTEN INC
  • US11892372B2 patent drawing
  • US11892372B2 patent drawing
  • US11892372B2 patent drawing

AI summary

A disclosed component may include at least one split-ring resonator, which may be embedded within a material. The split ring resonator may be formed from a three-dimensional (3D) monolithic carbonaceous growth and may detect an electromagnetic ping emitted from a user device. The split ring resonator may generate an electromagnetic return signal in response to the electromagnetic ping. The electromagnetic return signal may indicate a state of the material in a position proximate to a respective split ring resonator. In some aspects, the split-ring resonator may resonate at a first frequency in response to the electromagnetic ping when the material is in a first state, and may resonate at a second frequency in response to the electromagnetic ping when the material is in a second state. A resonant frequency of the 3D monolithic carbonaceous growth may be based on physical characteristics of the material.