Train Reclosing Device for Automatic Reactivation
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Solution Overview
Problem
Current train restart processes require manual intervention and can be time-consuming, especially during service breaks, and existing automatic train control systems consume significant power, necessitating large battery capacities to maintain functionality during breaks in traction voltage.
Innovation Solution
A device that independently reactivates train subsystems using an event-triggered mechanism, reducing the need for manual intervention and allowing for automatic startup, with a train reclosing device that generates a self-locking pulse to switch on the automatic train control, followed by other subsystems, minimizing power consumption and battery requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the automatic train control system keeps all consumers switched off during breaks to reduce power consumption, then battery capacity requirements are reduced, but the train cannot be automatically reactivated when needed
Solution Approach 1:
The system is divided into two independent parts: a low-power train reclosing device that remains active and a high-power automatic train control system that switches off. The reclosing device handles only the essential function of generating restart impulses, while the main control system consumes minimal power during breaks.
Solution Approach 2:
The train reclosing device acts as an intermediary between the battery and the automatic train control system. It receives activation commands and generates the necessary impulses to restart the main control system, thereby enabling automatic reactivation without keeping the entire system powered on.
2Reliability
If manual switching on is used to ensure complete power shutdown during breaks, then battery discharge is prevented, but operational flexibility and response time are reduced
Solution Approach 1:
The train reclosing device enables the system to reactivate itself automatically without manual intervention. It monitors activation conditions and autonomously generates restart impulses, allowing the train to service itself and eliminating the need for driver intervention.
Solution Approach 2:
The train reclosing device is prepared in advance by switching it on before the break period begins. It remains in a ready state during the break, monitoring for activation commands, so that when reactivation is needed, the system can respond immediately without manual intervention.
3Ease of operation
If the train is switched on early to allow manual startup procedures, then all subsystems can be initialized, but driver work time and operational efficiency are reduced
Solution Approach 1:
The manual mechanical switching process is replaced by an electronic automated system. The train reclosing device electronically generates restart impulses that automatically initialize all subsystems, replacing the manual switching operations that previously required driver intervention and time.
4Duration of action of stationary object
If large battery capacity is used to maintain automatic train control during breaks, then uninterrupted operation is possible, but vehicle weight and cost increase
Solution Approach 1:
The essential reactivation function is extracted from the main automatic train control system and placed in the separate train reclosing device. This allows the main system to be completely powered down during breaks, eliminating the need for large batteries to maintain control system operation throughout the break period.
Data Source
AI summary
The invention relates to a method and a device for reactivating a train (13) which has an automatic train control (3). In order to save energy and manual effort, a train reactivation device (1), supplied independently of the train-side sub-systems (14), is provided for an event-triggered reactivation of the subsystems (14) of the train (13).