Control Algorithm of Train Autonomous Control System in Turnout Safety Zones
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 1
Abstract
[Objective] Unlike the existing CBTC (communication-based train control) system control mechanism, the ATC (autonomous train control) system achieves autonomous train operation by directly controlling wayside resources. To improve the operational efficiency of turnout segments, it is necessary to study the control algorithm of ATC system in turnout segments, using smaller granularity turnout safety zones as control resources for ATC system. [Method] The control algorithm of ATC system considers the track section as a shared resource, with turnout safety zones allocated separately for train use. A comparative analysis is conducted between ATC system and CBTC system in scenarios with single-slip turnouts and crossover turnouts, and simulation calculations are performed using real train control system and turnout parameters to improve the operational efficiency. [Result & Conclusion] Compared to the conventional interlocking algorithm of CBTC system, the control algorithm of ATC system for turnout safety zones performs better. In single-slip turnout scenarios, the maximum increase in the safety interval for train operation reaches 74.5%. In crossover turnout zone scenarios, the maximum increase in train turnout-passing time reaches 33.8%. By optimizing the system architecture and control algorithm, ATC system increases flexibility and efficiency, serving as an important direction for the development of the next generation train control system.
Authors and Affiliations
Yanfeng WANG, Zehui XIE
Keywords
Related Articles
- EP ID EP727689
- DOI 10.16037/j.1007-869x.2024.01.006
- Views 62
- Downloads 0
Real Time Planning Algorithm of Automatic Train Driving Based on Global Optimization
Objective The existing target speed planning algorithm for the automatic driving of urban rail transit train cannot handle in real time the temporary change of the line speed limit in case of emergency due to the large c...
Toe Load Detection and Test Verification Based on the Natural Frequency of Fastener Elastic Rod
Objective The insufficient toe load of the fastener elastic rod will induce loosening of the surrounding fasteners, aggravate the dynamic response between wheels and rails, affecting the service life of the track compone...
Influence of Vertical Ground Motion on Seismic Response of Subway Station Co-structure System
Objective The co-structure system of subway station (hereinafter referred to as 'co-structure system') realizes the connection and conversion between the box structure and the box frame structure through thick plates. Du...
Design of Traction Calculation and Simulation Platform for Urban Rail Transit
［Objective］ At the initial stage of urban rail transit projects, it is essential to design a traction calculation simulation platform to accurately evaluate the operational indicators of the signaling system and meet e...
Design and Research of Vehicle-end Turning Hydraulic Device for Modern ART Tram
［Objective］ Modern ART (autonomous rail transit) trams often adopt multi-car articulated configurations in operation, because articulation joints possess significant degrees of freedom, relating the smooth operation of...