SouthwestJiaotongUniversityYawanhigh-speedrailoperationandmaintenancepersonneltraining2022年3月2、ExpertiseEMUbodystructure,end-of-carconnectionandin-vehicleequipment(2.EquipmentandfacilitiesintheEMUvehicle)Instructor:LiuLihuaTwoThreeIntroductiontoEMUdoorsInteriordoorsofEMUsFourEMUexteriordoorFiveEMUexteriordoorinspectionSixAnalysisofcommonfailuresoftheouterdooroftheEMUOneEMUpassengerroomfacilitiesSevenFirealarmsystemforEMUOneEMUpassengerroomfacilitiesEMUpassengerroomfacilitiesTheentireEMUformsacompletepassagebysettingupthepassengerroomcorridor,theaisle,theinnerandouterenddoorsandthewindshieldofadjacentvehicles,sothatallthepassengerroomsofthewholetrainareconnected.TheEMUisequippedwithboilingwaterstoves,electricalcabinets,fireextinguishers,garbagebinsandotherin-vehicleequipment.EMUrestaurantbarcarfacilitiesThereareescapeequipment,storagecabinets,kitchenlockers,andmonitoringroomsinthecorridorofthefirstendofthecarbody.Thetwoendsofthevehicleareequippedwithfireextinguishers,garbagebinsandelectricalcontrolcabinets,andfixedseatsareprovidedinthediningarea.EMUdiningcarfacilitiesThekitchenoftherestaurantbarcarisequippedwithwaterheater,sink,microwaveoven,oven,displaycabinet,refrigerator,waterboilerandelectriccontrolcabinet.EMUdiningcarfacilitiesDisplaycabinetsandrefrigeratedcabinets:theprincipleofevaporativerefrigeration.EmergencysparepartsforEMUsWheelstops,ironshoes,emergencyhammers,signallights,firemoments,transitionhooks,windpipes,groundingrods,electricpens,insulatingboots,insulatinggloves,seatbelts,emergencycrossingplates,emergencyladders,protectivenets,fourthtypesofcheckersandothertools.EmergencyladderEmergencyuseofferryboardsSafetyhammerTwoIntroductiontoEMUdoorsOne.IntroductiontoEMUdoorsInternaldepartmentsGuestroomisolationdoorDriver'sroomwalldoorCrewroomdoor(mechanicaldoor)Toiletdoor(mechanicaldoor)Externalsectors：Sidedoorofthedriver'scab,sidedooroftheEMUOne.IntroductiontoEMUdoorsOuterdoor:alsoknownasthesidedoor,theattendantandpassengersenterthepassageinsidethecar,eachcarriagehasoneortwoouterdoorsontheleftandright,distributedatbothendsorinthemiddle(carNo.1andNo.8),02,03,04,06and07carshaveatotalof4sidedoors,andthediningcar05hasonlytwosidedoors.One.IntroductiontoEMUdoorsInnerdoor:Apassagebetweenthevariouspartsofthecarriage.1.Innerenddoor:eachcarpassesbetweenthedeskandtheguestroom,whichisasingleelectricslidingdoor.2.Driver'sroomwalldoor:locatedintheheadcarpassage,whichisthepassagebetweenthedriver'scabandthepassengerroom.3.Flightattendantroomdoor:thedoorbetweentheattendant'sroomandtheguestroom.4.Toiletdoor:thedoorbetweenthetoiletandtheguestroom.One.EMUdoorintroduction:innerdoorfloorplanTheinnerdoorislocatedinthemiddleoftheEC01/08,atbothendsoftheTC02/07andIC03/06cars,andatoneendoftheEC04car.ThreeInteriordoorsofEMUs

SeparatedoorfortheguestroomUsedfortheseparationbetweenguestrooms,alsoknownastheinnerenddoor.Mostoftheguestroomseparationdoorsareelectricseparationslidingdoors,usingtheautomaticswitchdetectedbythephotoelectricswitchtocontrol,theupperpartofthedoorhasaninformationdisplay,andtheguestroomseparationdooroftheYawanhigh-speedrailhastwocontrolmethods:manual/electric,whichcanbeconvertedbyswitching.PartitiondoorsfordiningcarsPhotoelectricsensorontheupperpartofthedoorSeparatedoorfortheguestroom

SeparatedoorfortheguestroomElectronicallycontrolledmotorizedsingle-openmobiledoors,distributedbetweenone-bitandtwo-positionterminals.DividerdoorstructureMaincomponents:(1)Doormechanism:Themobilebearingmechanismofthedoorhastheadvantagesofsimplestructure,smallmovementresistance,convenientinstallationandhighreliability.Thedoorisdrivenbyamotor,controlledbytheelectricdoorunitdoorcontrollerDCD,themotortransmitstheforcetotheloadpulleythroughthetoothedbeltmechanism,andthedrivenutassemblycompletestheopeningandclosingofthedoor.

SeparatedoorfortheguestroomMaincomponents：（2）Doorleaf:madeofsafetyglass,thisdoorleafhasasimplestructureandalargedoor.Glassspacing:Madeofalargepieceofsafetyglasstoincreasethepermeabilityoftheguestroom.Woodenspacing:Madeofplywoodtoprotectandshadetoiletequipment.Doorbeams:Transitionsbetweenthemiddleandflatroofpanels,withinternaldisplays,toiletdisplays,firealarmdisplays,andin-carbrakehandlesandbuzzersallintegratedonthem.

SeparatedoorfortheguestroomFunction:1.Start:Poweronthedigitalcontrolunittostartthesystem.2.Switchingaction:Theinfraredremotecontrolsensorlocatedonbothsidesofthedoorisusedtostartthedooropeningprogram,thesensorisinstalledabovethedoor,onlyifsomeoneisintheinfraredbeam,thedoorwillremainopen,thedooropeningtimeisabout5S,whenthedoorarrivesattheopenpositionandtheremotecontrolsensorisactivated,thedoorwillremainintheopenposition10S.3.Closingaction:Whentheremotecontrolsensorsignalisnolongereffective,thedoorwillautomaticallycloseafterthewaitingtimeforopeningthedoorfor10S.Whentheclosingactionbegins,theopeningholdironwillbedisconnected.Theclosingtimeisabout6S,andwhenaremotecontrolsensorisactivatedduringtheclosingmovement,thedoorwillremainclosedandthenopenthedoor.

SeparatedoorfortheguestroomFunction:4.Remotecontrolsensor:Onbothsidesofthedoor,aremotecontrolsensorisinstalledtodetectthepassageofpassengers.5.Emergencybuttonfunction:onbothsidesofthedoor,eachinstalledinanemergencybutton,anyemergencybuttonispressed,thedigitalcontrolunitwillnotwork,nolongerissueanyactioninstructionstothedoor,thedoorcanbemanuallypushed.6.Safetyfunctionwhenthedoorisblocked:Ifthedoorisblockedduringtheopeningprocess,thesafetyfunctionwillmakethedoorstoptheactionfor3Stime,andthenthedoorwillopenagain,iftheobstaclestillpreventsthedoorfromopening,thesafetyprogramwillberepeated4times,afterwhichthedoorwillstopinthecurrentposition,thesystemwillissueafaultindicationandrestartafter1min.

Separatedoorfortheguestroomfunction：Yawanhigh-speedrailcarhasnowindshielddoor,andthepassengerroomseparationdoorandwindshielddoorareintegrated.Theguestroompartitiondoorismanuallyclosedwhenafirebreaksouttopreventthefirefromspreadingtoothercarriages.Whenthedoorisclosedoropened,itcanbekeptinitspositionedstate,andapressingdeviceisset.

FlightattendantroomdoorThedoorofthecrewroomisamanualslidingdoor,asingledoorleaf,usingmulti-layeraluminumprofiles,thedoorisequippedwithautomaticlocking,thedoorisautomaticallylockedwhenitismanuallyclosed,andthedoorisclosedwithoutmechanicalspringdevice.Fromtheoutsideitisnecessarytoopenthedoorwithakeyandhandle.Butonlyahandleisrequiredtoopenthedoorfromtheinside,andthedoorleafusesanaluminumsillasaguiderail.

ToiletdoorsTheinsidedoorpageofthebathroomdoorisprovidedwithamanualdoorlockandahandletoopenandclosethedoor,theouterdoorpageisprovidedwithakeyandadoorhandle,whenthedoorclosesfromtheinsideandlocksthedoorhandledoorlock,thedisplayscreenoutsidethedoorpagedisplaysthe"Someone"signal,andtheNo.1andNo.8carssimultaneouslydisplay"toiletperson"onthedisplayscreenonthewallattheendofthepassengerroomthroughtheEMUpassengerinformationsystem.FourEMUexteriordoor

EMUouterdoor:sidedoor,alsoknownastheSierraGateSystemoverview01Mechanicalcomposition02Airwaycontrol03Circuitcontrol04

SystemoverviewYawanhigh-speedraildooradoptsaselardoor,thefullnameofasingleelectronicallycontrolledelectricexternalopenslidingdoor:electroniccontrol(doorcontrollercontrol),electric(motordrivedoorleafmovement),electronicallycontrolledpneumaticpressuretightsealing.

SystemoverviewControlinstructionsaretransmittedwithhardwire,andtheopeningandclosingdoorsaredividedintocentralizedcontrolorlocaloperation,withanti-squeezefunction;Thelockingdeviceadoptsmulti-pointpressingandlocking,whichissafeandreliable.SideviewoutsidethecardoorInteriordrawingofthecardoor

SystemoverviewPasswidth:800mm/900mm,passheight:1900mmWhenopeningthedoor,theswingsize:70mm,pneumaticload:±6kPa+800NSoundinsulationperformance:≥32dB,thermalinsulationperformance:≤3.9W/m2·KBasicparametersAtotalof26setsofSierradoorswereinstalledinthe8groupofYawanhigh-speedrailwayEMU.Accordingtotheinstallationlocation,itisdividedinto:1-1door,1-2door,2-1door,2-2door.Serradoorsaredividedintowidesidedoors(900mm)andnarrowsidedoors(800mm)accordingtothewidthofthedoorleaf.CarNo.4hastwosetsofwidesidedoorsandtwosetsofnarrowsidedoors,carNo.1,5and8havetwosetsofnarrowsidedoorseach,andcars2,3,6and7havefoursetsofnarrowsidedoors.Serradoorlayoutandclassification1.Closingthedoor2.OpenthedoorThecourseofactionStopuppullSerradoorlayoutDoormaster-slavedoorcontroldistributionmapThesellagdoorisdividedintoleftandrightdoorsaccordingtotheinstallationposition.SerradoorsaredividedintoMDCUsandLDCUsaccordingtotheclassificationofdoorcontrols.SerraGateActionProcess1.ClosingthedoorWhenthedoorsystem(doorcontroller)receivesthedriver'scentralizedcontroltoclosethedoororthelocalclosingcommand,thedoorcontrolleroutputsthecorrespondingcurrenttodrivethemotortorotate,thedrivemotordrivesthescrewrotationthroughthesynchronoustoothedbelt,thedoorleafisfixedbycarryingthemasttothenut,andtheleadscrewismoved,thedoorleaffirstmovesalongtheguiderailandthenentersthecurvemovementandfinallyreachestheclosingposition,thatis,themainlocklockisinplace(firstlevel),andfinallytheauxiliarylockpressestodrivethemainlockintothesecondaryposition(auxiliarylockpressingispressedtightlybytheairtopromotethehookandtonguelocking),Byestablishingasafetyinterlockloopfeedbacktothedriver'smonitoringscreen,thedoorisclosednormallyandthedrivingconditionsareavailable,whichistheclosingprocess.

SerraGateActionProcess

2.OpenthedoorWhenthedoorsystem(doorcontroller)receivesthedriver'scentralizedcontroltoopenthedoororthelocaldooropeningcommand,thedoorcontrollercontrolstheoutputauxiliarylockunlocking,themainlockunlock,andthenoutputsthecorrespondingcurrenttodrivethemotortorotate,drivethedoorleaftoopen,andjudgethedooropeninginplacethroughthedoorpositioncode,whichistheopeningprocess.MechanicalcompositionPART02Serradoorismainlycomposedofdriveguidedevice,lockingdevice,doorleaf,doorframe,emergencydooropeningdevice,isolationdeviceandsoon.DrivetheguideAuxiliarylockmechanism:auxiliarylocktransmissionparts,cylinders,auxiliarylockinplacelimitswitch,auxiliarylocksolenoidvalveAfterthedoorclosesthevalve,theauxiliarylockcylinderprotrudesandpressesthelockingtongueagainstthedoorleaflockthroughthetransmissionpart.Mainlockingmechanism:cylinder,limitswitch,lockbodyandlockingtongue,lockbuckleThelimitswitchsymbolnamecorrespondstothetableserialnumbernameserialnumbername1Locktolimitswitch11Exteriordoorbutton2Isolationlocklimitswitch12Emergencyactionrequestbutton3Emergencyunlocklimitswitch13Emergencyactionrequestswitch498%offinplacelimitswitch14buzzer5Auxiliarylocklockinplaceswitch15Pressureswitch6Externalsensitiveedges16Emergencyunlockingoftheelectromagnet7Sensitiveedgesinside17Auxiliarylockingsolenoidvalve9Insidetheclosingbutton18Themainlockunlocksthesolenoidvalve10Insidedoorbutton

Lockinplacelimitswitchfunction1.IndicatesthattheSierradoorisclosedinplace,andthe98%limitswitchisusedforHMIscreendoorstatusdisplay.2.Thedoorsafetycircuitisestablished.3.Mechanicallockingofthecardoor.IsolatedlimitswitchfunctionNon-driver'sseatendisolationlock01Driver'scompartmentendisolationlock02Isolatetheoutsideofthelock03Isolationlimitswitch04Function:Signalwhenemergencyinsideandoutsideunlocking.國外現(xiàn)狀EmergencyunlocklimitswitchEmergencyunlocking:Thespeedofthecarislessthan10km/hcanopenthedoorurgentlyandevacuatepassengers.Finetuningsizerequirements:C2-C1=18±2mm.(1)Manuallyclosethedoorleaftothecriticaltriggerpositionofthe98-positionswitch(theswitchhasaslight"clicking"sound),andmeasurethedistancebetweenthebackedgeofthedoorleafandthebackdoorframeC1;(2)Manuallyclosethedoortothesecondarypositionofthemainlock,andmeasurethedistancebetweenthebackedgeofthedoorleafandthebackdoorframeC2.

98%CloseinPlaceLimitSwitch:Detectsthatthedoorisclosedto98%oftheposition,atwhichpointthedoorlosesitsanti-crushfunction.LeftandrightthresholdsIllustrationoftheswitchPosition:NexttothelowerauxiliarylockAuxiliarylock-inpositionlimitswitchFunction:DetectstheauxiliarylockinplaceSensitivestripsontheoutsideandinsideSensitivestripsontheoutside:ontheoutsideofthedoorleafSensitivestripontheinside:ontheinsideofthedoorleaf外側(cè)敏感膠條內(nèi)側(cè)敏感膠條Accordingtotheincreaseofresistance,theresistanceofthesensitiverubberstripbecomessmaller,andthegatingcontrollerdetectsthechangeandoutputsthecorrespondinginstructions.InsidetheclosingbuttonInsidedoorbuttonExteriordoorbuttonEmergencyactionrequestbuttonEmergencyactionrequestswitchSwitchesandemergencyhandlesEmergencyunlockingoftheelectromagnetAuxiliarylockingsolenoidvalveThemainlockunlocksthesolenoidvalveSolenoidsandvalvesEmergencyunlockElectromagnetsAuxiliarylock-upSolenoidvalvesThemasterlockisunlockedSolenoidvalvesBuzzerandpressureswitchbuzzerpressureswitchPressureswitchPressureswitchdetectionrange:4.5+/-0.5bar.Whentheairsupplypressurereachesthesetvalue,thepressureswitchcontactclosestothegatecontrollertoinputhighlevel,whenitisbelow4.0bar,thepressureswitchisdisconnected,andthedoorcontrolinputlowlevelreportsthecompressedairsupplylossfailure.AirwaycontrolPART03

Serradoorgaspathcontrolismainlycomposedofairsourceswitch,filterpressurereducingvalve,pressureswitch,fastexhaustvalve,Y2solenoidvalve,Y3solenoidvalve,auxiliarylockcylinder,mainlockunlockcylinderandsoon.SerramenairwaycontrolActualdiagramoftheairpathcontrolThesolenoidvalveisenergizedtocontroltheauxiliarylockingandcompression(Fillingandpressingoftheauxiliarylockcylinder,exhaustunlocking)Thesolenoidvalveisenergizedtocontroltheunlockingofthemainlock(Forthemainlockcylinderinflationunlocking,thesolenoidvalveisnotalwayselectrified,andtheinstantaneouspoweriscompletedtounlock)SerramenairwaycontrolAirwaycontrolTurnontheairsupplyswitchTheY2solenoidvalveiselectrifiedTheY3solenoidvalveiselectrifiedCircuitcontrolPART04

ThemainfunctionoftheSerraGatebarrierdetectfunctionlocalswitchfunctionfaultisolationfunctionInternetcommunicationfunctiontractionchainfunctionurgentOpenthedoorfunctionZerospeedprotectionfunctionTheentirecolumnLockthecarfunctionSerraGateActionProcess1.ClosingthedoorWhenthedoorsystem(doorcontroller)receivesthedriver'scentralizedcontroltoclosethedoororthelocalclosingcommand,thedoorcontrolleroutputsthecorrespondingcurrenttodrivethemotortorotate,thedrivemotordrivesthescrewrotationthroughthesynchronoustoothedbelt,thedoorleafisfixedbycarryingthemasttothenut,andtheleadscrewismoved,thedoorleaffirstmovesalongtheguiderailandthenentersthecurvemovementandfinallyreachestheclosingposition,thatis,themainlocklockisinplace(firstlevel),andfinallytheauxiliarylockpressestodrivethemainlockintothesecondaryposition(auxiliarylockpressingispressedtightlybytheairtopromotethehookandtonguelocking),Byestablishingasafetyinterlockloopfeedbacktothedriver'smonitoringscreen,thedoorisclosednormallyandthedrivingconditionsareavailable,whichistheclosingprocess.

SerraGateActionProcess

2、OpenthedooractionWhenthedoorsystem(doorcontroller)receivesthedriver'scentralizedcontroltoopenthedoororthelocaldooropeningcommand,thedoorcontrollercontrolstheoutputauxiliarylockunlocking,themainlockunlock,andthenoutputsthecorrespondingcurrenttodrivethemotortorotate,drivethedoorleaftoopen,andjudgethedooropeninginplacethroughthedoorpositioncode,whichistheopeningprocess.TheHMIscreendisplaysthestatus1.DooropeningandclosingfunctionReleasesidedoorconditions:1.Themaincontrolkeyisactivatedandplacedinthe"1"position2.Thespeedofthevehiclegroup≤5km/hCutoffthereleasesignal:1.Presstheclosebutton2.Thespeedofthevehiclegroupis5km/h1.DooropeningandclosingfunctionCutoffthereleasesignal:1.Presstheclosebutton2.Thespeedofthevehiclegroupis5km/hCentralizedcontrolopenstherightdoorWhentherightdoorisreleased,presstheB1-S0button,B1-K01isenergized,andthenormallyopencontactclosestoenterthedooropeningcommandintothedoorcontroller.Thegatedcontrolleroutputstherelevantdooropeningactioncommands.1.DooropeningandclosingfunctionCentrallycontrolclosestherightdoorWhentherightdoorisreleased,afterpressingtheB1-S02button,B1-K02isenergized,thenormallyclosedcontactdisconnectsthereleasecommandofthedoor,andthenormallyopencontactclosestoenterthedoorclosingcommandtothedoorcontroller.Thegatecontrolleroutputstheclosingactioncommand.1.DooropeningandclosingfunctionLocalclosuresWhenthedoorsidecolumnclosesthedoorbutton,thedoorpressreceivestheclosingcommandinputandmakesthecorrespondingclosingactioncommand.1.Dooropeningandclosingfunction2.Barrierdetectionfunction

1.Thedoorsystemadoptsthreeways:sensitiveedgedetection,motorcurrentdetectionandtimedisplacementdetectionofthedoortodeterminetheexistenceofobstacles.

2.Whenthedoorislockedinplace,theanti-squeezedetectionisautomaticallydeactivated.2.Barrierdetectionfunction

DoorClosureDetection:Whenanobstacleisdetected,thedoorstopsclosingandreopenstotheopeningposition,afteradelayof1s,thedoorwillautomaticallycloseagain,andthecyclewillberepeated.Afterthedoorisreturned3times,thedoorsareallopenedandthemonitoringsystemreportsthedoorfailure(Thedoorisred）。

Opendoorinspection：Whenthedoorisblockedduringtheopeningprocessandcannotbeopened,stayattheresistancelevelfor3sandtrytoopenthedooragain,stayattheresistancelevelafter3timesandwaitforprocessingtoprotectthedoorsystemfromdamage,andtheSerradoorreportsanobstacletodetectthefault（Thedoorisred）。3.故障隔離功能

Intheeventofadoorfailure：Canlocktheisolationlock,themechanicallockthedoorandsetthedoortoanon-usedstate,theEMUcancontinuetorun

Afterthedoorsarequarantined：Thedooriswithdrawnfromuseandcontrolinstructionsarenolongerexecuted;Isolateddoorscannotbeopenedbymeansofemergencydooropenings.3.Faultisolationfunction

Thespecificoperationisasfollows:aftermanualclosuretocompletelocking,theisolationlockonthedoorleafisoperatedwithafour-cornerkeyfromtheinsideofthecartoreliablylockandisolatethedoor.Isolationinplaceornotcannotbeisolatedlockscrewedasthecriterionforjudgment,theisolationlocktonguereliableinsertionofthelockplateshallprevail,andwhentheisolationisinplace,theindicationoftheisolationlock(reddot)canappearinthecorrespondingobservationwindow.Theisolationcontactswitchistriggeredatthesametime,whichistransmittedtotheTCMS,andtheHMImonitorscreenshowsthisdoorisolation.4.EmergencydooropeningfunctionInneremergencyunlockcontrolprinciple

Operationemergencyoperationrequestswitch(emergencyoperationbuttonswitch):thedoorcontrollerenterstheemergencyunlockmode(thedoorcontrollerdetectstheinputhighlevel),thebuzzersounds,thefrequencyis5Hz,theHMIscreenreports"doorX-Xemergencyunlocking",thedoorcontrolportoutput0,theelectromagnetintheemergencyunlockelectromagnetcoillosespower,thelatchpopsoutbyspringreboundforce,thegatecontrolleroutputhighlevelremainsunchanged,andtheauxiliarylockisnotunlocked.Theemergencyhandletriggerswitchinthepullcarlastsfor100ms,anditsnormalclosingpointisdisconnectedtocutofftheauxiliarylocksolenoidvalvepowersupplyatthesametime,thedoorcontrollerdetectstheemergencyswitchtrigger,thecontroloutputlowlevelcutsofftheauxiliarylocksolenoidvalvepowersupply,theauxiliarylockexhaustunlocks,andtheswingbardrivesthemainlockmechanicalstructuretounlock.

(1)Atthistime,ifthereisnopulltooperatetheemergencyhandletomanuallyopenthedoor,thatis,theclosingpositionswitch,lockthepositionswitch,theauxiliarylocklimitswitcharealltriggerstates,aftertheemergencyunlockrequestbuttonorkeyswitchisreset,thebuzzerstopsringing,theHMIscreenreports"doorX-Xemergencyunlock"disappears,thedoorremainsinanormalstate,andthefollow-upcanrespondtothecentralizedcontrolswitchdoor.4.Emergencydooropeningfunction

Threestateswithinemergencyunlock

(2)Atthistime,ifyoupulltheoperationemergencyhandletounlockthedoor,theemergencyunlockswitchistriggered,theopeningpositionisnotbeyondtheclosingpositiontoopenthetriggerposition,theemergencyrequestbuttonorkeyswitchisreset,thebuzzerstopsringing,thedoorwillautomaticallyperformthepressureauxiliarylock,theHMIscreenreports"doorX-Xemergencyunlock"hasnotdisappeared,thelocaldoorclosinglightislit,andthenoperatethelocalclosingbutton,thedriverscreennolongerreports"cardoorX-Xemergencyunlock",exittheemergencyunlockmode,andthefollow-upcanrespondtothecentralizedcontrolswitchdoor,Ifthelocalclosebuttonisnotpressed,thedoordoesnotexitemergencyunlockmode,andthedoordoesnotrespondtothecentralizedcontroltoopenandclosethedoor.4.Emergencydooropeningfunction

Threestateswithinemergencyunlock

(3)Atthistime,ifyoupulltheoperationemergencyhandletounlockthedoor,theopeningpositionexceedsthetriggerpositionoftheswitchinplace,theemergencyunlockrequestbuttonorkeyswitchisreset,thebuzzerstopsringing,theHMIscreenstillreports"doorX-Xemergencyunlock",thelocalclosinglightislit,thedoordoesnotactbyoperatingthelocalclosingbutton,thedoorperformstheclosingaction,theHMIscreennolongerreports"cardoorX-Xemergencyunlock",exitstheemergencyunlockmode,andthefollow-upcanrespondtothecentralizedcontrolswitchdoor.4.Emergencydooropeningfunction

Threestateswithinemergencyunlock

Inthecaseofwhetherthevehiclehaselectricityornot,directlypulltheemergencyhandleoutsidethecarforemergencyunlocking,whenthereiselectricity,theemergencyhandleoutsidethecarcandirectlytriggertheswitch,thetriggerswitchlastsfor100ms,thenormallyclosedcontactisdisconnectedtocutofftheauxiliarylocksolenoidvalvepowersupplyatthesametimethefeedbackgatecontrollerinputswitchtriggers,thedoorcontrollerenterstheemergencyunlockmode,thecontroloutputoutputlowlevelcutsofftheauxiliarylocklocksolenoidvalvepowersupply,theauxiliarylockexhaustunlock,theswingbardrivesthemainlockmechanicalstructuretounlock,onlythelocalclosingdoorcanexittheemergencyunlockmode,Otherwise,thecentralizedcontrolswitchdoordoordoesnotrespond,doesnotreportthefault,andonlyrecordsinsidethedoorcontroller.4.EmergencydooropeningfunctionExternalemergencyunlockExterioremergencyhandlewireropeInsidethecaremergencyhandlewirerope

MVB+CANnetworkisusedforstatusmonitoringandfaultdiagnosisinformationtransmissionoftheSierraGate,whichimmediatelytransmitsfaultinformationandpromptsthedrivertoperformcorrespondingoperations;Dooropeningandclosinginstructions,releaseinstructions,safetyloops,speedsignals,etc.aretransmittedbyhardwire.5.NetworkcommunicationfunctionNetworkstructurediagramTheclosedstateofthedoorisinterlockedwiththetractionoftheEMU,andallthedoorsareclosedinplacetobetractionnormally.

6.Tractionblockingfunction(safetyloop)Undernormalcircumstances,thestatecontactsofthedooraredisconnected,thetrunklinesarehigh,andtherelaysinthesafetyloopofthelocomotivecabareelectrified;Whenthesafetyloopistriggered,thestatecontactofthetriggereddeviceisclosed,causingthetrunklinetoformaloopattheclosedcontact,thesafetylooprelaylosespower,andthetraincannotbepulled.7.Zero-speedprotectionfunctionThespeedislessthan5km/htoreleasethesignaltobeeffective,allowingthedoortoopen;Automaticallyclosethedoorcommandgreaterthan5km/h.Theintermediatecarisolationlockcanonlybeoperatedfromtheinsideofthecar,andtheoutsideofthecarisblockedwitha