Embedded Tire Temperature Sensing for Rolling Mining Vehicles

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Solution Overview

Problem

Current methods for monitoring tire temperature inside a rubber mixture in heavy civil engineering vehicles are complex, costly, and disrupt mining operations, as they require manual installation of sensors and frequent vehicle stops, making them unsuitable for real-time, non-destructive, and automatic temperature measurement.

Innovation Solution

A method involving the identification of specific zones on the tire for sensor insertion, drilling with a cylindrical drill bit, and securing temperature sensors with a microprocessor and radio transmission capabilities within the tire, using a device to evacuate air and seal the cavity, allowing for real-time temperature monitoring without stopping the vehicle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual sensor installation and frequent vehicle stops are used for temperature monitoring, then temperature measurement accuracy is improved, but mining operation productivity deteriorates

Engineering Contradiction:
Improvetemperature measurement accuracyVSAvoidmining operation productivity
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

Temperature sensors are pre-installed in the tire during manufacturing before the tire is put into service. This preliminary action eliminates the need for manual installation and vehicle stops during operation, allowing continuous temperature monitoring without disrupting mining productivity while maintaining measurement accuracy

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The tire incorporates integrated temperature sensors and a processing unit that automatically monitor and analyze temperature data during normal operation. The system serves itself by continuously collecting thermal data without requiring external intervention, vehicle stops, or manual sensor installation, thus maintaining both measurement precision and operational productivity

Inventive Principle:
Principle #25Self-service

2Reliability

If complex manual sensor installation methods are used, then temperature measurement capability is improved, but device complexity and installation cost increase

Engineering Contradiction:
Improvetemperature monitoring capabilityVSAvoidsensor installation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The temperature monitoring system merges multiple functions into an integrated unit: temperature sensors are embedded within the tire structure, connected to a processing unit that handles data collection, analysis, and transmission. This consolidation eliminates complex separate installation procedures while maintaining reliable temperature monitoring capability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated processing unit performs multiple functions: it collects data from multiple temperature sensors, processes the thermal information, determines temperature evolution, and transmits alerts. This multi-functional design simplifies the overall system while ensuring reliable temperature monitoring without requiring complex specialized components

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 simple, automatic, and non-destructive real-time temperature measurement within the tire, reducing downtime and increasing mining productivity by providing accurate temperature data for predictive maintenance.

Implementation Method 1

measuring the temperature inside a rubber compound of said tire

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP4297962B1Tire instrumentation method for measuring the internal temperature during rolling
Publication Date: 2024.12.18 MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
  • EP4297962B1 patent drawingFigure 1A~2
  • EP4297962B1 patent drawingFigure 3-A~5

AI summary

The invention relates to an instrumentation method for a civil engineering tire (20) in order to measure the temperature inside a rubber mixture of said tire. The method includes a step of locating the implementation areas of the sensors (10), each of which comprises a microprocessor, radio transmission means, a temperature measurement probe, and power supply means. The sensors (10) are then inserted into cavities (205, 206, 207) in rubber mixtures, and the sensors are held in a fixed position during the rolling movement of the tire (20) to communicate the measurement results to a remote receiver located in a vehicle.