Automatic Rail Coupling Assembly for Moving Freight Wagons

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Solution Overview

Problem

Current railway wagon coupling systems require human operators, are not suitable for moving wagons, lack remote verification, and do not support frequent coupling and release operations, especially for freight transport with high tensile stresses, and do not facilitate the exchange of information between computerized systems.

Innovation Solution

A system with automatic hooking groups featuring complementary protrusions, vertical and horizontal alignment apparatuses, and actuators for screwing and unscrewing, enabling automatic coupling and release of vehicles with high towing resistance and compatibility with both traditional and intelligent wagons.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If automatic coupling systems similar to Scharfenberg are used, then coupling operation is automated, but they cannot couple moving wagons and require extremely low approach speed

Engineering Contradiction:
Improvecoupling operation automationVSAvoidapproach speed
Core Design Contradiction:
Extent of automationVSSpeed

Solution Approach 1:

The system performs preliminary verification of coupling conditions using sensors and computerized systems before the actual coupling occurs. This includes checking wagon identification, position, and compatibility, allowing the coupling to proceed automatically even at higher speeds by ensuring all prerequisites are met in advance

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system incorporates sensor components that provide real-time feedback during the coupling maneuver to guide the phases and verify correctness. This feedback mechanism allows the system to monitor and adjust the coupling process dynamically, enabling automation while accommodating higher approach speeds

Inventive Principle:
Principle #23Feedback

2Extent of automation

If current automatic coupling systems are used, then coupling is automated, but they are not suitable for freight transport with high tensile stresses

Engineering Contradiction:
Improvecoupling operation automationVSAvoidtowing resistance
Core Design Contradiction:
Extent of automationVSStrength

Solution Approach 1:

The coupling system is divided into separate functional components: a first coupling group for mechanical connection and a second coupling group for electrical and pneumatic connections. This segmentation allows each component to be optimized independently, with the mechanical coupling designed specifically to withstand high tensile stresses required for freight transport

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If current coupling systems are used, then basic coupling function is provided, but remote verification and certification must be performed by operators

Engineering Contradiction:
Improvecoupling operation simplicityVSAvoidremote verification automation
Core Design Contradiction:
Ease of operationVSExtent of automation

Solution Approach 1:

The system performs self-verification through sensor components and computerized systems that automatically monitor and certify the coupling operation. The sensors detect coupling status, alignment, and connection integrity, eliminating the need for operator certification and enabling complete remote verification

Inventive Principle:
Principle #25Self-service

4Strength

If current coupling systems are used, then basic mechanical connection is achieved, but information exchange between computerized systems is not possible

Engineering Contradiction:
Improvemechanical connection strengthVSAvoidinformation exchange capability
Core Design Contradiction:
StrengthVSLoss of information

Solution Approach 1:

The system merges mechanical coupling functions with electrical and electronic connection systems into an integrated coupling assembly. The second coupling group includes electrical contacts and communication interfaces that enable information exchange between computerized systems while the mechanical components provide the required strength for freight transport

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12528522B2System for automatic coupling and release of vehicles travelling on the rail network
Publication Date: 2026.01.20 CO EL DA SOFTWARE SRL
  • US12528522B2 patent drawing
  • US12528522B2 patent drawing
  • US12528522B2 patent drawing

AI summary

A system for automatic coupling and release of at least a first vehicle having a cushioning system and of a second vehicle travelling on the railway network, at least a first hooking group of the first vehicle; a retractable screw body; and a horizontal shaft. At least a second hooking group of the second vehicle, includes an automatic head including a first and a second terminal element configured to be coupled to each other with complementary interlocking. The frontal structure of the first hooking group includes the retractable screw body, the first hooking group includes a tubular cavity; and the second hooking group comprises a thread.