Rail Vehicle Coupling Assembly Monitoring System

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Solution Overview

Problem

Existing coupling assemblies for rail-guided vehicles face challenges in ensuring that individual components function properly over time, leading to potential wear and reliability issues, which are difficult to detect through conventional inspections.

Innovation Solution

A monitoring system is integrated into the coupling assembly to record and evaluate load data from its components based on their coupling state and state transitions, allowing for early detection of potential malfunctions and automatic countermeasures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional inspections are performed to verify component functionality, then reliability can be maintained, but device complexity and maintenance time increase significantly

Engineering Contradiction:
Improvecomponent functionalityVSAvoidinspection complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The coupling assembly performs self-monitoring through integrated sensors that automatically detect component conditions and transmission errors during operation, eliminating the need for complex external inspections while maintaining reliability

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Manual visual inspections are replaced with automated sensor-based monitoring systems that use electronic detection devices to monitor component conditions, transmission forces, and operational parameters, significantly reducing inspection complexity

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

2Reliability

If damping device absorbs all tensile and impact forces, then component wear is reduced, but the damping device cannot protect clutch assembly components from force transmission

Engineering Contradiction:
Improvecomponent wear protectionVSAvoidforce transmission to clutch components
Core Design Contradiction:
ReliabilityVSForce

Solution Approach 1:

Sensors monitor transmission forces and component conditions in real-time, providing feedback that allows the system to detect when forces exceed damping device capacity, enabling early warning before damage occurs to clutch assembly components

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The monitoring system detects potential damage conditions before they manifest as actual component failure, allowing preventive maintenance actions to be taken before the damping device fails to protect the clutch assembly

Inventive Principle:
Principle #10Preliminary action

3Volume of moving object

If coupling assembly components are designed for compactness, then space efficiency is improved, but verification of individual component functionality becomes difficult

Engineering Contradiction:
Improvecoupling assembly sizeVSAvoidcomponent inspection accessibility
Core Design Contradiction:
Volume of moving objectVSDifficulty of detecting and measuring

Solution Approach 1:

Physical access to components for visual inspection is replaced with integrated sensors and electronic monitoring systems that can detect component conditions through the compact structure, eliminating the need to disassemble or access components physically

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

Solution Approach 2:

Sensors act as intermediaries between the compactly housed components and the inspection system, transmitting information about component conditions to external monitoring systems without requiring physical access to the components themselves

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4188770B1Coupling assembly comprising a monitoring system and method for monitoring a coupling assembly
Publication Date: 2025.06.11 VOITH PATENT GMBH
  • EP4188770B1 patent drawingFigure 1~2

AI summary

The invention relates to a coupling assembly for railbound vehicles comprising a coupling head, which can be coupled or decoupled to/from a coupling head of a counter coupling in order to change the coupling status. The coupling assembly is assigned a monitoring system for monitoring the status of components of the coupling assembly based on load data of components of the coupling assembly. The monitoring system is designed to receive different load data and/or load data of different components of the coupling assembly according to both a coupling status of the coupling head and a coupling status change of the coupling head.