Universal Wheel Electronic Unit for Versatile Tire Sensor Integration

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Solution Overview

Problem

Existing tire pressure monitoring systems require multiple arrangements of electronic units to accommodate different integration modes, leading to increased costs and limited integration choices due to the need for specific sensor orientations.

Innovation Solution

A single arrangement of the electronic unit with a radial acceleration sensor mounted at an inclination of 30 to 60 degrees, allowing it to measure radial accelerations effectively and integrate into various wheel configurations without limitations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple arrangements of electronic units are used to accommodate different integration modes, then the system can be integrated into various wheel configurations, but the device complexity and manufacturing costs increase

Engineering Contradiction:
Improveintegration flexibilityVSAvoidnumber of arrangements
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The electronic unit is designed with a universal mounting structure that can be integrated into different wheel configurations (radial and tangential mounting) using the same arrangement. The support structure includes mounting means that accommodate both mounting orientations, eliminating the need for multiple specialized arrangements and reducing device complexity while maintaining integration flexibility

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

Solution Approach 2:

The electronic unit incorporates a movable or adjustable mounting mechanism that allows the same electronic unit arrangement to adapt to different integration modes. The support structure can be positioned or oriented differently on the wheel rim, enabling the system to handle various wheel configurations without requiring multiple fixed arrangements

Inventive Principle:
Principle #15Dynamics

2Measurement precision

If specific sensor orientations are required for different integration modes, then measurement accuracy is maintained, but the ease of manufacture and installation deteriorates

Engineering Contradiction:
Improveacceleration measurement accuracyVSAvoidmanufacturing and installation simplicity
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The radial acceleration sensor is mounted on a support structure that maintains the correct measurement orientation regardless of how the electronic unit is integrated into the wheel. The support structure includes mounting means that preserve the sensor's radial alignment with the wheel center, ensuring measurement accuracy while allowing flexible integration and simplifying manufacturing and installation processes

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

3Adaptability or versatility

If multiple electronic unit arrangements are produced, then various wheel configurations can be supported, but the manufacturing costs and time increase

Engineering Contradiction:
Improvewheel configuration compatibilityVSAvoidmanufacturing efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

A single electronic unit arrangement with a universal support structure is designed to accommodate different wheel configurations. The mounting means on the support allow the same electronic unit to be installed on various wheel types without requiring multiple specialized versions, thereby improving manufacturing efficiency and productivity while maintaining wheel configuration compatibility

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

Solution Approach 2:

The electronic unit integrates multiple functions and mounting capabilities into a single unified structure. The support structure combines radial and tangential mounting options in one design, allowing the same electronic unit to serve multiple integration purposes, thus reducing the need to produce multiple separate arrangements and improving overall manufacturing productivity

Inventive Principle:
Principle #5Merging (Combining)

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

This solution enables cost reduction by eliminating the need for multiple arrangements, allowing the electronic unit to be integrated in various ways while maintaining accurate measurement of gravitational and centrifugal accelerations, thus facilitating versatile wheel unit integration.

Implementation Method 1

This radial acceleration is the resultant of two radial components, namely a first component which corresponds to the projection of the gravitational acceleration in the direction of measurement of the radial acceleration sensor

Methodology Applied
Scientific EffectGravitation: Gravitation

Implementation Method 2

a second component which corresponds to the centrifugal acceleration in the same direction of measurement of the radial acceleration sensor

Methodology Applied
Scientific EffectCentrifugal acceleration: Centrifugal Force

Data Source

PatentUS10259277B2Wheel electronic unit and method of mounting same
Publication Date: 2019.04.16 CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH
  • US10259277B2 patent drawing
  • US10259277B2 patent drawing
  • US10259277B2 patent drawing

AI summary

An electronic unit for measuring operating parameters of a tire, the tire being mounted on a rim, the mounted assembly forming a vehicle wheel able to rotate about an axis of rolling, the electronic unit includes a support designed to be mounted on the wheel, the support forming a printed circuit on which there is mounted a radial-acceleration sensor able to measure radial accelerations of the wheel, the radial-acceleration sensor being mounted inclined in an angular range from 30 to 60 degrees with respect to a plane tangential to the rim.