Braking Process Modeling of CRH2 Electric Multiple Unit

摘要

Train brake has great influence on the safe operation and is the important guarantee of safe operati-on.Train braking process was greatly affected by factors such as environment,line condition and train driver operation proficiency.How to determine the effective braking control strategy is the foundation of achieving the safe and reliable operation of the train,and train brake model plays an important role in realizing effective braking control.This paper taking the CRH2-300 Electric Multiple Unit(EMU) as an example,based on the analysis of the braking process operation characteristics and brake deceleration mode curve,to establish the mathematical model of braking process.Afterwards,according to EMU operation data and model character uaing the recursive least square algorithm method to identification model parameters.Simulation results show the established braking process model has the important practical significance to realize the safety,reliability and accurability braking process.