Tire Sensor Assignment via Wireless Signal Reception

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Solution Overview

Problem

Existing tire sensor assignment methods for commercial vehicles are complex and often require manual adjustments, leading to errors in monitoring tire conditions, especially when tire changes occur.

Innovation Solution

A method and device for automatically assigning a tire sensor to a wheel position using wireless communication signals, where the assignment is based on reception parameter values and tire parameter values, allowing for independent determination without pre-existing associations, and is triggered by vehicle movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If manual adjustment methods are used for tire sensor assignment, then the assignment can be performed with simple equipment, but the complexity of the adjustment process increases and error-free monitoring cannot be ensured

Engineering Contradiction:
Improvesimplicity of adjustment processVSAvoiderror-free tire monitoring
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The system automatically performs tire sensor assignment using reception parameter values from wireless communication signals. The telematics unit independently determines wheel positions and assigns sensors without requiring manual intervention or additional user devices, making the system self-configuring and eliminating human error in the assignment process.

Inventive Principle:
Principle #25Self-service

2Ease of operation

If automatic assignment methods are implemented, then the assignment process is simplified and can be performed without tools, but the device complexity increases

Engineering Contradiction:
Improveautomation of assignment processVSAvoidcomplexity of assignment system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical adjustment processes with an automated electronic system. The telematics unit uses wireless communication signals and reception parameter analysis to automatically determine wheel positions and assign tire sensors, substituting the mechanical/manual assignment process with an electronic automated system that leverages existing communication infrastructure.

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

3Stability of the object's composition

If tire sensors are permanently assigned to wheel positions, then the monitoring system is stable, but the system cannot adapt when tire changes or wheel position swaps occur

Engineering Contradiction:
Improvestability of sensor-wheel assignmentVSAvoidadaptability to tire changes
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The system transitions from a static permanent assignment to a dynamic automatic reassignment mechanism. When tire changes or wheel position swaps occur, the telematics unit automatically detects the new configuration through wireless communication signals and reception parameter values, and reassigns tire sensors to the correct wheel positions, maintaining both stability during normal operation and adaptability during changes.

Inventive Principle:
Principle #15Dynamics

4Ease of repair

If additional user devices are required for assignment, then the assignment can be performed with external assistance, but the process becomes more complex and time-consuming

Engineering Contradiction:
Improveexternal assistance for assignmentVSAvoidtime required for assignment
Core Design Contradiction:
Ease of repairVSLoss of time

Solution Approach 1:

The system eliminates the need for external user devices or assistance by performing the assignment process autonomously. The telematics unit uses its own wireless communication capabilities to receive signals from tire sensors, analyze reception parameter values, determine wheel positions, and complete the assignment without any external intervention, saving time and simplifying the process.

Inventive Principle:
Principle #25Self-service

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 accurate and error-free monitoring of tire conditions by automatically assigning tire sensors to wheel positions, simplifying the process and eliminating the need for manual adjustments during tire changes or when wheel positions are swapped.

Implementation Method 1

at least a first wireless communication signal of a first tire sensor is received by wireless communication means of a commercial vehicle

Methodology Applied
Scientific EffectWireless communication signal reception: Electromagnetic Induction

Data Source

PatentEP3375646B1Ability to associate a tyre sensor to a tyre position
Publication Date: 2024.06.26 SCHMITZ CARGOBULL AG
  • EP3375646B1 patent drawingFigure 1
  • EP3375646B1 patent drawingFigure 2a
  • EP3375646B1 patent drawingFigure 2b

AI summary

It is disclosed, among other things, a method comprising: - Receiving (301, 404) at least one first wireless communication signal of a first tire sensor (21, 23) by wireless communication means (13) of a commercial vehicle (2); - Determining (302, 405) whether the first tire sensor (21, 23) can be assigned to a wheel position of the commercial vehicle (2), at least partially based on at least one received parameter value of the first wireless communication signal and/or at least one representation of a tire parameter value contained in the first wireless communication signal.