Scalable High-Speed Train Configuration with Modular Carriages

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Solution Overview

Problem

Current high-speed trains designed for speeds of at least 280 km/h are inflexible in terms of length and cannot easily have cars removed or additional cars added, limiting variability and scalability.

Innovation Solution

A high-speed train configuration with a maximum of six cars, featuring two end cars and up to four middle cars, where two middle cars form a pair with one railcar and another car equipped with a transformer for power supply, allowing for scalable configurations and double traction capabilities without requiring adaptations to existing carriages.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If high-speed trains are designed as complete trains with fixed configurations, then structural stability and reliability are improved, but adaptability and scalability deteriorate

Engineering Contradiction:
Improvestructural stabilityVSAvoidscalability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The train is divided into standardized modules: end cars (with or without driver's cabs), intermediate cars (power cars and non-power cars), and transformer cars. These modules can be combined in different configurations (4, 5, 6, or 8 cars) to create complete trains, enabling scalability while maintaining structural integrity through standardized coupling mechanisms and interfaces.

Inventive Principle:
Principle #1Segmentation

2Quantity of substance

If more intermediate cars are added to increase train length, then transport capacity is improved, but device complexity and power supply requirements worsen

Engineering Contradiction:
Improvetransport capacityVSAvoidpower supply system complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

Transformer cars serve as intermediary units that convert overhead line voltage to suitable levels for power cars. By placing transformer cars at specific positions (e.g., every 4th car in an 8-car train), the power supply system can serve multiple power cars without requiring each to have its own transformer, thus reducing overall complexity while supporting longer train configurations.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Force

If powered bogies are added to intermediate cars to provide sufficient traction, then traction capability is improved, but weight and manufacturing cost worsen

Engineering Contradiction:
Improvetraction capabilityVSAvoidtrain weight
Core Design Contradiction:
ForceVSWeight of moving object

Solution Approach 1:

Powered bogies are selectively installed only in intermediate cars that require additional traction, rather than in all cars. The patent specifies that powered bogies should be installed in at least some intermediate cars to provide sufficient traction for the complete train, while other intermediate cars can remain unpowered, optimizing the weight-traction trade-off.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP3938264B1High-speed train, double-header train, and use of the high-speed train
Publication Date: 2023.05.31 SIEMENS MOBILITY GMBH
  • EP3938264B1 patent drawingFigure 1~2
  • EP3938264B1 patent drawingFigure 3~4
  • EP3938264B1 patent drawingFigure 5

AI summary

The invention relates to a high-speed train (56, 8, 68) with a structure gauge in accordance with TSI standards, suitable for speeds of at least 280 km/h. According to the invention, to provide a high-speed train (56, 58, 68) which can be used as the basis for a scalable high-speed train (2, 60) or as the basis for a scalable double-header train (62, 66) with two half trains (64), the high-speed train (56, 58, 68) with a structure gauge in accordance with TSI standards, suitable for speeds of at least 280 km/h, has two end coaches (4) and a maximum of four centre coaches (6) arranged between the end coaches (4).