ongguaranteeforthesafeandefficientoperationoftherailwaytransportationmakebrakesystem.focusonanalyzingandarrangingthebrakingsystembreakdown,tostudyasetofeffectivefaulthandlingmethods,improvetheefficiencyoffaulthandling,andputsforwardsuggestionsforimprovement,brakesystemfailuretoradicallyreduce.uratejudgment,eliminatethefaultintime,canreduceparkingEMUontheway,toavoidinterferencetotrafficorder.Inthispaper,thefaultofCRH5EMUbrakesystemisdividedintotheemergencybrakeisalleviated,monbrakenotrelievedthebicyclebrakenoteaseandairsupplyandairsupplypipelinefailureofseveralparts,withfinishingprocessingmethodofthecorresponding,andforpartofthetechnologyontheirownpointofview.Keywords:CRH5EMU,Brake,Brakefault,Faultanalysisandtreatment目录第一章概论……………………………………………………………………………11.1制动系统概述………………………………………………………………………1