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ThebasicstructureofthecarCargenerallyengine,chassis,bodyandelectricalequipment,suchasthefourbasicparts.One.AutomobileEngine:Enginepowerdevicesaremotorvehicles.twolargeorganizationsbytheDepartmentoffivecomponents:cranklinkage;valve;fuelsupplysystem;coolingsystem;lubricationsystem;ignitionsystem;startingline.1.Coolingsystem:generalbythewatertanks,waterpumps,radiators,fans,temperaturesection,andtablesandwatertemperatureswitches.Usestwotypesofautomobileenginecoolingmethod,thatis,aircoolingandwatercooling.Theuseofgeneralautomotiveenginecoolingwater.2.Lubricationline:bytheenginelubricationoilpump,setthefilter,oilfilter,oilRoad,thepressurelimitingvalve,oilform,asenseoftamponade,andruler,suchasthecompositionoftheoil.3.Fuelline:gasolineenginefuelbythepetroltank,petroltable,petrolpipes,gasfilter,fuelpump,carburetor,airfilter,intotheexhaustmanifoldandothercomponents.Two.Automotivechassis:thechassisissupported,theinstallationofautomotiveengineanditscomponents,assembly,andformtheoverallshapeofthecarandtheenginepoweracceptabletohaveasportscar,toensurenormaltraffic.Chassisbythepowertrain,roadsystem,steeringsystemandbrakingsystemcomposedoffourparts.1.Powertrain:AutomobileEngineissuedbythetransmissionofpowertransmissiontothedrivewheels.Transmissionlinewithaslow,variablespeed,reversing,interruptionofpower,rotationspeeddifferencebetweentheinter-axledifferentialandfunctions,withtheenginetowork,toensureworkingconditionsinavarietyofmotorvehiclesundernormaldrivingconditions,andhasgoodpowerandeconomy.Mainlybytheclutch,transmission,universaljoints,driveshaftandthecompositionofbridges.Clutch:itsroleistoenabletheenginepowerandsmoothgearengagementortemporaryseparation,inordertostartdriverforautomotive,parking,andotheroperatingshift.Transmission:transmissionbytheshell,transmissioncover,thefirstaxis,thesecondshaft,intermediateshaft,reverseshaft,gears,bearingsandothermechanicalmanipulationofbodycomposition,forautomotivespeed,variabletorqueoutput.2.Travelingline:bytheframe,axle,suspensioncomponentsandwheels.Departmentofthefunctionoftrafficare:a.acceptthepowertransmissionsystem,throughthedrivingwheelandtheroleofroadtraction,sothatnormalcartraffic;b.bearthetotalweightofvehicleandthegroundreactionforce;c.unevenroadtoeasetheimpactofthefaceofthebody,theattenuationofvibrationinthecartomaintainthesmoothrunningof;d.meetwiththesteeringsystemtoensurethevehiclehandlingandstability.3.Steeringsystem:thecarusedtochangeorrestorethespecialdirectionofitstravelagencyknownastheautomotivesteeringsystem.Thebasiccompositionofsteeringsystema.turnmanipulatedmainlybythesteeringwheel,steeringshaft,steeringcolumnandsoon.b.rotatingthesteeringwheelsteeringwillbeturnedintoaswingingarmorarackshaftofthelinearreciprocatingmotion,andshiftpowertomanipulatethebodytoenlarge.Steeringframefixedinthecarortruckbody,powersteeringthroughthesteeringcontrolwillchangeafterthegeneraldirectionoftransmission.c.turningthesteeringtransmissionmechanismandtheoutputtotheexercisewheel(steeringknuckle),andabouttherelationshipbetweenthewheelsmustdeflectionbythebody.4.BrakeSystem:Automotiveuptotheoutsideworld(mainlyroads)insomepartsofmotorvehicles(mainlythewheel)mustexertthepower,sotheirdegreeofenforcementofaseriesofbrakingdevicesarecollectivelyreferredtoasspecializedbrakingsystem.Itsroleis:tomakeamovingvehicleinaccordancewiththemandatoryrequirementsofthedriverslowdownorevenstop;sothatthecarhadbeenstoppedatavarietyofroadconditions(includingtherampupin)stabilityinthecar;sodownhillspeedvehiclesstability.BrakeSystemClassification:a.theroleofthebrakingsysteminaccordancewithVehicularbrakingsystemscanbedividedintothebrakingsystem,brakesystem,emergencybrakingsystemsandauxiliarybrakingsystems.Tomakeamovingvehicletoreducethespeedofthebrakingsystemandevenparkingbrakingsystemknownastheroad;tohavebeensuspendedsothatthepresenceofthecartostayputwhilethebrakingsystemknownastheparkingbrakesystem;atfailureofthebrakingsystemtrafficcases,toensurethatmotorvehiclescanslowdownorstopimplementationoftheemergencybrakingsystemknownasthebrakingsystem;intheroad,theauxiliarybrakingsystemtoreducetrafficspeedormaintainspeedandstability,butemergencyvehiclescannotbesuspensionsystemknownastheauxiliarybrakingsystembrakes.Theabove-mentionedbrakesystem,brakesystemandtheroadcarbrakingsystemineachcarmusthavethe.b.bythebrakemanipulationofenergyBrakingsystemcanbedividedintohumanandbrakingsystems,brakesystemsandpowerbrakeservosystems.Tothebodyofthedriverbrakingenergyastheonlybrakingsystemknownasthehumanbrakingsystem;entirelyonpowerfromtheengineturnedintoaformofpressureorthepotentialforhydraulicbrakesystem,knownasthepowerbrakesystem;acombinationofhumanpowerandenginebrakingtothebrakingsystemorbrakingsystemknownastheservopowerbrakingsystem.c.TransferofenergybywayofbrakingBrakingsystemcanbedividedintomechanical,hydraulic,pneumatic,electromagnetic,etc..Atthesametime,twowaystouploadtothebrakingsystemknownastheCombinedBrakingSystem.Brakingsystemingeneralbythebrakecontrolandbrakethetwomainparts.a.brakecontrolagenciesHaveabrakingactiontocontrolt