Braking distance prediction for vehicle consist in low-speed on-sight operation:a Monte Carlo approach  

作　　者：Raphael Pfaff 

机构地区：[1]FH Aachen University of Applied Sciences,Goethestr.1,52064 Aachen,Germany

出　　处：《Railway Engineering Science》2023年第2期135-144,共10页铁道工程科学（英文版）

基　　金：funding of the SAMIRA project by the European Regional Development Fund under grant number 0801689

摘　　要：The first and last mile of a railway journey, in both freight and transit applications, constitutes a high effort and is either non-productive(e.g. in the case of depot operations) or highly inefficient(e.g. in industrial railways). These parts are typically managed on-sight, i.e. with no signalling and train protection systems ensuring the freedom of movement. This is possible due to the rather short braking distances of individual vehicles and shunting consists. The present article analyses the braking behaviour of such shunting units. For this purpose, a dedicated model is developed. It is calibrated on published results of brake tests and validated against a high-definition model for lowspeed applications. Based on this model, multiple simulations are executed to obtain a Monte Carlo simulation of the resulting braking distances. Based on the distribution properties and established safety levels, the risk of exceeding certain braking distances is evaluated and maximum braking distances are derived. Together with certain parameters of the system, these can serve in the design and safety assessment of driver assistance systems and automation of these processes.

关 键 词：Freight rail SHUNTING Braking curves Brake set-up Driver assistance system Automatic train operation 

分 类 号：U270.35[机械工程—车辆工程]