Braking Scheme for Shunting and Rescue of a City Rail Transit Vehicle
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 10
Abstract
Objective The technical requirements for using locomotives to shunt and rescue city rail transit vehicles are analyzed and a braking scheme that integrates the shunting and rescue functions into the braking control unit of city rail transit vehicles is studied. Method The shunting and rescue braking scheme for city vehicles focuses on their matching characteristics with locomotive air brake system functionality and performance, and the interface compatibility with the vehicle's own electrical system. This allows for synchronous braking and relief between city vehicles and the locomotives, ensuring braking synchronization during shunting and rescue operations, and reducing train longitudinal impulse. The pneumatic circuit design, electrical design, and braking command conversion functions of a city rail transit vehicle under locomotive shunting and rescue conditions are specifically examined. Critical considerations in matching the shunting and rescue functions with the train electrical interface are also highlighted. Result & Conclusion Research shows that when the city vehicle shunting and rescue functions are integrated into braking control unit, the continuous train pipe and automatic braking system throughout the entire train is not necessary for setting, reducing equipment procurement costs. This integration enhances product integration, increases braking sensitivity, reduces longitudinal train impact, protects bogie equipment, and improves overall train braking performance. The scheme meets the operational requirements for urban rail transit vehicle shunting and rescue.
Authors and Affiliations
Huanyang SUN, Kang HU, Feiping LUO
Keywords
Related Articles
- EP ID EP749247
- DOI 10.16037/j.1007-869x.2024.10.044
- Views 21
- Downloads 0
Research on the Matching Relationship between Backflow Device and Special Rail of Urban Rail Transit Vehicles
Objective The stray current generated during the operation of urban rail transit vehicles with rail backflow method will cause electrical corrosion to nearby metal objects, while the special rail return mode can solve su...
Stability Analysis of Deep and Large Foundation Pit Construction for Urban Rail Transit Station in Soil Rock Composite Stratum in Coastal Area
[Objective] Excavation of foundation pit will cause deformation of surrounding strata and buildings , which affects construction progress and even causes engineering accidents in some degree. In order to ensure the stabi...
Study on Flow Plasticity and Permeability of Mixture Conditioned Muck for Metro Shield Tunnel in Water-rich Sand Stratum
[Objective] When tunnel boring machine advancing in the water-rich sand layer, problems such as high cutter torque, serious wear and spout of the screw conveyer can be easily generated. In order to ensure the safety of c...
Evaluation Method of Bogie Outer Positioning Anti-rolling Torsion Bar Structural Strength
Objective In order to solve the TBS (torsion bar shaft) torsional stiffness and strength for the outer support anti-rolling device in railway vehicles, an analytical method of introducing the TBS deformation coordination...
Train Speed Measurement Approach Based on Wheel-axle Creep Rate Detection
Objective In urban rail transit systems, train velocity measuring and positioning technology offers critical information to many applications such as train autonomous driving, collision avoidance, dispatching and directi...