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 61
- Downloads 0
Research on Traction Power Supply System for Shanghai Rail Transit Chongming Line
[Objective] It is to address issues such as stray current corrosion and limited distance for DC traction power supply systems conventionally using rail return in urban rail transit. [Method] After conducting a comparativ...
Contactless Traction Power Supply System Design and Efficiency Optimization of Battery Energy Storage Rail Trains
Objective Contactless power supply method, leveraging the advantages of no direct electrical contact between the primary and secondary side coils, is currently being explored in the rail transit industry. The high-power,...
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...
Impact of Wheel Wear on Dynamics Performance of CR200J EMU Trailer and Control Cars
Objective In response to stability alarm faults occurring in CR200J EMU trailer and control cars in certain sections, it is necessary to analyze the factors affecting the dynamics performance to analyze the causes and ad...
Railway Track Identification and Extraction Based on Improved Convolutional Neural Network
Objective Prevention and protection of foreign objects intrusion into railway becomes a hot research topic, and the division of intrusion areas requires detection of the track location. In order to determine the track lo...