Magnetic Carrier Coupling for Heavy-Load Rail Transport

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Solution Overview

Problem

Existing rail-based transport systems are limited by the size and drive forces of individual carriers, restricting the size and mass of goods that can be transported.

Innovation Solution

The development of a rail-based transport system with carriers that can magnetically couple and decouple, allowing for increased platform size and drive force through magnetic couplings and a control unit that manages these interactions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If carriers are used with limited size and drive forces, then the system maintains simple carrier design and operation, but the size and mass of goods that can be transported are restricted

Engineering Contradiction:
Improvesize and mass of goodsVSAvoidcarrier coupling mechanism
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The transport system divides the cargo carrying capacity into multiple independent carriers that can operate separately or combine together. Each carrier maintains independent drive capability, allowing the system to transport larger goods by coupling multiple carriers while preserving the simplicity of individual carrier design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple carriers can magnetically couple together to form a combined transport unit with increased platform size and drive force. The magnetic coupling mechanism allows carriers to merge when larger cargo capacity is needed while maintaining the option to separate into individual units, effectively scaling the transport capability without redesigning the entire system.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If carriers are independently controllable, then the system maintains simple control architecture, but mechanisms such as collision avoidance require secondary dependency among carriers

Engineering Contradiction:
Improvecarrier interaction capabilityVSAvoidcontrol system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control system dynamically adjusts the level of carrier interdependence based on operational requirements. When carriers operate independently, control remains simple and decentralized. When coupling is required, the control system automatically establishes coordinated control between coupled carriers, enabling adaptive interaction capability without permanently increasing system complexity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The control system uses feedback from carrier position, speed, and coupling status to automatically manage carrier interactions. Collision avoidance and coordinated control are achieved through real-time feedback mechanisms that adjust carrier behavior based on the current operational state, maintaining simplicity while enabling versatile carrier interactions.

Inventive Principle:
Principle #23Feedback

3Quantity of substance

If magnetic coupling strength is increased to handle heavier loads, then the coupling can support larger goods, but the energy required to break the magnetic coupling increases

Engineering Contradiction:
Improvecargo mass capacityVSAvoidenergy to break magnetic coupling
Core Design Contradiction:
Quantity of substanceVSUse of energy by moving object

Solution Approach 1:

The magnetic coupling mechanism uses periodic or pulsed electromagnetic fields to control coupling and decoupling. By applying electromagnetic forces in pulses rather than continuously, the system can maintain strong magnetic coupling for heavy loads during transport while requiring energy only during the decoupling event, rather than continuously overcoming the magnetic force.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system changes the magnetic field parameters (strength, polarity, duration) dynamically to optimize coupling performance. Stronger magnetic fields are applied only when coupling is needed, while during transport the magnetic parameters are adjusted to maintain coupling with minimal energy consumption. The electromagnetic actuation allows precise control of the coupling state without requiring continuous high energy input.

Inventive Principle:
Principle #35Parameter changes

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 the transport of larger and heavier goods by allowing carriers to couple and couple, with a control system that manages the magnetic couplings and decoupling process, enhancing the transport capacity and efficiency.

Implementation Method 1

A first magnet coupling is attached to the first end of the carrier for magnetically coupling the carrier to another such carrier

Methodology Applied
Scientific EffectMagnetic coupling: Magnetism

Implementation Method 2

The rail 30 may comprise an arrangement of plural electromagnets 34... They generate magnetic forces cooperating with the magnetic structure in carrier 20 for generating driving, accelerating or decelerating forces

Methodology Applied
Scientific EffectElectromagnetism: Electromagnet

Data Source

PatentUS20250388242A1Carrier of a rail-based transport system, rail-based transport system, controller thereof, control method therein and data carrier
Publication Date: 2025.12.25 SCHNEIDER ELECTRIC IND SAS
  • US20250388242A1 patent drawing
  • US20250388242A1 patent drawing
  • US20250388242A1 patent drawing

AI summary

A carrier of a rail-based transport system has a frame with a first end seen in rail direction and a second end seen in the opposite rail direction, a guiding and holding mechanism attached to the frame to movably guide and hold the carrier along and at the rail, a carrier drive mechanism for driving and braking the carrier, and a first magnet coupling attached to the first end of the carrier for magnetically coupling the carrier to another carrier.