Rail Mobility Control With Onboard Switching and Shorter Headways

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Solution Overview

Problem

Traditional railway infrastructure is underutilized due to limitations in signaling and switching systems, which result in long stopping distances and large headway distances, leading to inefficiencies and potential collisions.

Innovation Solution

A system of independently operating rail vehicles with on-demand, self-actuating mobility, including modified roadway vehicles that can drive on railway tracks, infrastructure-to-vehicle power supply systems, and simplified track installations, allowing for continuous, high-speed vehicle flow without centralized control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional signaling and switching systems are used, then centralized control is maintained, but stopping distances are long and headway distances are large

Engineering Contradiction:

Improvecollision preventionVSAvoidheadway distance

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent divides the centralized control system into distributed onboard control units in each vehicle. Each vehicle independently determines its own stopping distance and switching actions, eliminating the need for centralized signal processing and reducing headway distances while maintaining collision prevention through individual vehicle autonomy.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Each rail vehicle is equipped with onboard control systems that autonomously determine stopping distances, execute switching actions, and navigate track junctions without external signaling. This self-service capability reduces dependency on centralized control infrastructure and enables shorter headway distances while maintaining safety.

Inventive Principle:

Principle #25Self-service

2Reliability

If conventional wayside switching actuation is used, then centralized control is maintained, but switching speed is slow

Engineering Contradiction:

Improveswitching controlVSAvoidswitching actuation speed

Core Design Contradiction:

ReliabilityVSSpeed

Solution Approach 1:

The patent inverts the conventional approach by moving switching control from wayside infrastructure to onboard vehicle systems. Instead of infrastructure actuating switches based on centralized signals, each vehicle's onboard control unit directly actuates switches at track junctions, dramatically increasing switching speed while maintaining reliable control through distributed autonomy.

Inventive Principle:

Principle #13The other way round (Inversion)

3Reliability

If traditional railway infrastructure is used, then signaling systems are in place, but infrastructure complexity and cost are high

Engineering Contradiction:

Improvevehicle flow controlVSAvoidsignaling and switching infrastructure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts signaling and control functions from centralized infrastructure and relocates them to onboard vehicle systems. This eliminates the need for complex wayside signaling infrastructure while maintaining reliable vehicle flow control through distributed onboard control units that independently manage navigation and switching decisions.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces mechanical and electrical signaling infrastructure with electronic communication and onboard processing systems. Instead of physical signals and mechanical switch actuation, vehicles use electronic sensors, processors, and direct electronic control of switching mechanisms, reducing infrastructure complexity while maintaining control reliability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS20250137205A1Rail based mobility systems and methods of installation and use

Publication Date: 2025.05.01 GEARHART JACOB KELLER

AI summary

A rail based mobility system includes various vehicles and railway infrastructure, and related methods of operation, that are able to operate efficiently in an on-demand fashion. The system can include a plurality of transportation vehicles, rail tracks with one or multiple junctions, and systems and methods of modifying and enabling road vehicles to use the rail tracks and mobility system.