Tire Stress Measurement Synchronization via Time Reference

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Solution Overview

Problem

Current methods for measuring stresses on large tires used in heavy-duty vehicles, such as those in mining, face challenges in synchronizing data from multiple independent measurement acquisition means while minimizing weight, bulk, and energy consumption, which hinders efficient analysis and adaptation of tire design.

Innovation Solution

A method involving a single time-measuring reference means that creates an index for each measurement signal, allowing for synchronization of data from multiple independent acquisition means, with the option for periodic indexings and drift correction to ensure accurate synchronization over extended periods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If multiple independent measurement acquisition means are used to measure tire stresses, then measurement comprehensiveness is improved, but synchronization accuracy deteriorates

Engineering Contradiction:
Improvenumber of measurement acquisition meansVSAvoidsynchronization accuracy
Core Design Contradiction:
Quantity of substanceVSMeasurement precision

Solution Approach 1:

The patent combines multiple independent measurement acquisition means into a unified measurement system by introducing a common time reference signal that all devices synchronize to. This merging approach maintains the comprehensiveness of multiple sensors while achieving precise synchronization through shared temporal reference, thereby resolving the contradiction between quantity of measurement devices and synchronization accuracy.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If measurement means are linked together or to energy sources by wired links, then energy supply reliability is improved, but ease of operation deteriorates

Engineering Contradiction:
Improveenergy supply reliabilityVSAvoidtransportation and installation ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces mechanical wired connections with wireless communication technology. Measurement acquisition means transmit data and receive time reference signals wirelessly, eliminating the need for physical cables. This substitution maintains energy supply reliability through wireless power transmission or energy harvesting while dramatically improving ease of operation during transportation and installation of measurement devices.

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

3Ease of operation

If wireless communication is used for data transmission, then ease of operation is improved, but energy consumption increases

Engineering Contradiction:
Improvetransportation and installation easeVSAvoidenergy consumption
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

The patent implements periodic measurement and transmission cycles where measurement acquisition means collect data over a period and transmit batches of measurements rather than continuous transmission. This periodic action reduces overall energy consumption while maintaining ease of operation, as devices can enter low-power states between transmission cycles. The system optimizes the balance between communication frequency and energy usage.

Inventive Principle:
Principle #19Periodic action

4Weight of moving object

If measurement means are made compact and lightweight, then ease of operation is improved, but measurement precision deteriorates

Engineering Contradiction:
Improvemeasurement means weightVSAvoidmeasurement accuracy
Core Design Contradiction:
Weight of moving objectVSMeasurement precision

Solution Approach 1:

The patent segments the measurement system into multiple lightweight, compact acquisition means distributed across different measurement points on the tire. Each individual device remains small and light for easy operation, but the collective network of segmented devices provides comprehensive and precise measurement coverage through multiple independent measurement points, thereby resolving the contradiction between individual device compactness and overall measurement precision.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS8997560B2Method for synchronising measurements
Publication Date: 2015.04.07 MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
  • US8997560B2 patent drawing
  • US8997560B2 patent drawing
  • US8997560B2 patent drawing

AI summary

A method for synchronizing the measurements obtained, over a given period, from a number of measurement acquisition means for acquiring measurements of characteristics associated with the stresses withstood by a tire fitted on a running vehicle. The measurement acquisition means are brought into operation independently of one another and at least one indexing at a given instant of the measurements from each of said means is created relative to a time-measuring reference means.