Hydrodynamic Clutch Fill Level Detection Using Image Recognition

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Solution Overview

Problem

Current methods for determining the filling level of hydrodynamic couplings are cumbersome and lack precision, particularly in accessing the viewing window, which complicates the filling and maintenance of these couplings.

Innovation Solution

A mobile device with a camera and image recognition is used to capture the viewing window of the hydrodynamic coupling, allowing for precise determination of the fill level without requiring manual alignment, utilizing a gravitational sensor to orient the image and a data memory for storing target filling quantities and positions, with optional acoustic signals for user guidance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual alignment and counting of flange bolts is used to determine fill level, then the fill level can be determined, but the process becomes cumbersome and time-consuming

Engineering Contradiction:
Improvefill level determinationVSAvoidfilling and maintenance time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces the manual mechanical method of aligning and counting flange bolts with an optical system using a camera to capture images of the viewing window. The image processing algorithm automatically determines the fill level by analyzing the image data, eliminating the need for manual alignment and counting operations.

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

Solution Approach 2:

The patent creates a digital copy (image) of the viewing window and its contents using a camera. This optical copy is then processed through image recognition algorithms to extract fill level information, replacing the need for direct manual measurement and alignment procedures.

Inventive Principle:
Principle #26Copying

2Measurement precision

If the viewing window is accessed manually for fill level checking, then the fill level can be determined, but accessibility becomes difficult for hard-to-reach couplings

Engineering Contradiction:
Improvefill level determinationVSAvoidaccessibility to viewing window
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent introduces a camera as an intermediary device that can capture images of the viewing window from a distance. This intermediary allows the fill level to be determined without requiring direct physical access to the viewing window, making it easier to inspect hard-to-reach hydrodynamic couplings.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical requirement of physically accessing and aligning with the viewing window using a camera-based optical system. The camera captures the view through the window remotely, and image processing algorithms extract the fill level information, eliminating the need for manual alignment and direct access.

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

3Measurement precision

If precise alignment with the viewing window is required, then accurate fill level measurement is possible, but the complexity of the procedure increases

Engineering Contradiction:
Improvefill level measurementVSAvoidalignment procedure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements a self-aligning system where the camera captures an image of the viewing window and the image processing algorithm automatically identifies the window's position and orientation. The system self-corrects for misalignment and automatically determines the fill level without requiring the operator to manually align the camera or understand complex alignment procedures.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the mechanical alignment procedure with an optical and computational system. The camera captures the viewing window at any angle, and image processing algorithms automatically analyze the image to determine the fill level, eliminating the need for precise manual alignment and reducing procedural complexity.

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

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 method simplifies the filling and maintenance of hydrodynamic couplings by enabling precise and convenient determination of the fill level, reducing the need for manual adjustments and improving accessibility for hard-to-reach couplings.

Implementation Method 1

A mobile device with a camera and image recognition is used to capture the viewing window of the hydrodynamic coupling

Methodology Applied
Scientific EffectLight reflection: Reflection

Implementation Method 2

utilizing a gravitational sensor to orient the image

Methodology Applied
Scientific EffectGravitation: Gravitation

Data Source

PatentEP3465105B1Determination of a filling level of a hydrodynamic clutch
Publication Date: 2021.04.14 VOITH PATENT GMBH
  • EP3465105B1 patent drawingFigure 1

AI summary

The invention relates to a device for filling a hydrodynamic clutch (1) with service fluid (2) and to a method for filling a constantly filled hydrodynamic clutch (1) at start-up and/or for checking or setting a fill level (15) with service fluid. The device and the method provide for the use of image recognition, by means of which a viewing window (9) can be recognized and by means of which a position of the viewing window (9) can be set.