车辆工程汽车外文翻译外文文献英文文献汽车安全系统技术研究分析.docx
《车辆工程汽车外文翻译外文文献英文文献汽车安全系统技术研究分析.docx》由会员分享,可在线阅读,更多相关《车辆工程汽车外文翻译外文文献英文文献汽车安全系统技术研究分析.docx(17页珍藏版)》请在冰豆网上搜索。
车辆工程汽车外文翻译外文文献英文文献汽车安全系统技术研究分析
Automotivesafetysystemsandtechnology
researchandanalysis
Abstract:
autopartsofgoodandbadwilldirectlyaffectthesafetyofthecar,aredirectlyrelatedtothepeople'slifesafetyandsecurityinwealth.Thisarticlemainlyfromthecar'sactivesafetytechnologyandpassivesafetytechnologytwoaspectselaboratedtheimportanceofcarparts,andhowtoimprovethesafetyofthecar.
Keywords:
automobile,activesafetytechnology,passivesafetytechnology
Astraffictoolsofthemodernizationandabsolutenumberincreasesharply,trafficaccidentsarealsoincreasing.Caraccidenthasbecomesevereglobalsocialissues.Undoubtedly,advancedautosafetyfacilitiesarethedrivingsafetyindispensablesafeguard.So,weshouldstart,fromtechnologytoresearchanddevelopmentofhighperformance,highsafetycar,alsowanttostrengthentheregularinspectionincars,sotimelymaintenanceinvestigation,makecarsofteningoodtechnicalstatus,soastoimprovethesafetyperformanceofthecar.
Hereweintroducedactivesafetytechnologyandautomobilecarpassivesafetytechnology.Autosafetyisaccordingtothetrafficaccidenthappenedbeforeandaftertheclassified.Oneisinatrafficaccidenttakesafetymeasures,especiallybeforeimmediatelywillproduceriskcondition,driversmanipulatethesteeringwheelavoidoremergencybraketoavoidtrafficaccidents.Inthecar,driveinusuallytoensurethebasicmanipulationstability,driversonthesurroundingenvironmentandtoensurethevisualrecognitionsexdrivethecaritself,developedthebasicperformanceant-lockbrakingsystem(ABS),preventslipperydrivesystem(ASR),activesuspension,powersteeringandfour-wheeldrive(4WD),four-wheelsteering(4WS),lightingsystem,wiper,therearviewmirror,preventfromrear-endcollisioncaralarmsystemandlaserradar,etc.Thesesecuritydevicesandtechnology,calledactivesafetysystem,canalsobecalledpreventive
securitysystem.Ontheotherhand,inordertoreducetrafficaccidentsandcompanybypersonneldirectlysufferdegree,ensurecompanytakestaffandpedestriansafety,saysthesecurityforpassivesafety,canalsobecalledconflictsafety.Whenaftertheaccident,inordertopreventdisasters,includingpreventtheexpansionoffireandmakecrewfromtrafficaccidentcanextricatethesecuritydevicesandsystems,calledpreventdisasterexpandsecuritysystem.
One.Automobileactivesecuritytechnology
1.ABSbrakingsystem
Ant-lockBrakingSystem(BrakingSystem,lockdobyABScomputersasABS),hydraulicdevice,thewheelspeedsensors,brakehydraulicpipelineandelectricalwiringetc.Theirstructuresareshownbelow.
ABStasseledforthecarinvariousdrivingconditionsbrakingperformanceandbrakesafetyparticularlyimportant,especiallyisemergencybraking,canmakefulluseofthepeakbetweentireandroadsurfaceadhesionproperties,improveperformanceandreduceautomobilefightsideslipbrakingdistance,givefullplaytothebrakingperformance,butalsoincreasetheautomobilebrakingprocesscontrol.Soastoreducethepossibilityofcaraccidents.
NoinstallationABScar,ifthedrivingforcetramplebrakepedal,wheelwillrapidlylowerspeed,andfinallywheelsstopturning,butbodybecauseofinertiaremainsforwardsliding.Thisphenomenonwasatthewheelandpavementoccurbetweenlarger"slip",appearthiskindofsituation,thecartiresofautomobilelateralspreadsalmostdisappear,sopoorforcewillappearthefollowingphenomena:
(1)Steeringstabilityfall:
thesteeringwheelisineffective,vehicletailmanipulationofcurl,seriouswhenvehiclecirclesorappearfoldingphenomenon;
(2)Handlingfall:
manipulatethesteeringwheelandshortofsteeringrequirements;
(3)Brakingdistanceextended:
morethangeneralbrakingdistance.
So,wecanimaginetohaveinstalledABSsystemofthecarsafetyisveryimportant.
2.theASRdrivetorquecontrolsystem
ABSareusedtopreventcarbrakingprocesswheellock,willwheelslidingratecontrolinidealrange,soastoshortenthebrakingdistanee,improveautomobilebrakingdirectionstabilityandsteeringcontrol,soastoimprovethesafetyofthecar.Alongwiththeincreaseofvehicleperformancerequirements,notonlyinbrakingprocessrequiredtopreventwheellock,andaskedthedrivertopreventdriverollerskatingturnintheprocess,makingcarsinthedirectionstability,drivingprocesssteeringcontrolabilityandaccelerationperformance,soareimprovedbythecardrivetorquesteeringsystemASR(AccelerationsRegulation)Slip.ASRistheperfectcomplementandABSASR,butmostaloneissetwithABScombinedtogether,commonlyusedABS/ASRsays,calledantiskidcontrolsystem.
ASRismainlyusedtopreventcarinthebeginning,acceleratethewheels,guaranteeslipinthecaracceleratedrateandimprovethestabilityinbadpavementdriveattachedconditions.Itmakesnodifferencespeedinthecarlockiceroadsandmuddyroadstartedandtoimproveitscapacity,alsocanpreventhighinspeedbyturningcarsglidingpavementandrearlateralspreadsphenomenon.
Anyhow,preventthewheelbecauseASRslip,canmaximizetheenginedrivingmomentofcarshadenough,ensuretheIongitudinalforce,lateralforceandmanipulationofpower,makecarsinstarting,steeringandacceleratetheprocess,inglidingandmuddyroad,inamountainareadownhillprocesscansteadilydriving,guaranteesthesafety,reducingtirewearandfuelconsumption,andimprovesthecardrivingcapability.
3.VDCsystem
ABS/ASRsystemsuccessfullysolvesthebrakeandthecarwhendrivendirectionstabilityproblem,butcannotsolvethevehiclesteeringstabilityproblemdrivingdirection.Forexamplewhensteeringroad,inevitablybylateralandIongitudinalforce,onlylocalsurfacecanprovidefulllateralandIongitudinalforce,thepilotcancontrolvehicles.Ifthegroundadhesionabilitylowerlateral,willdamagecarsdrivingabilitypredetermineddirection.Rainydayscarsdriving,oftenhigh-speedsteeringlateralslidingout,itisthegroundbecauseofinsufficientlateraladhesionability.Toresolvetheissue,anddevelopedcountriesautomobileindustryrecentlyinABS/ASRsystemonthebasisofthedevelopmentofdynamicControlsystem(intocarDynamicsControl,theabbreviationVDCVehicle).Thesystemofthecarbrake,driving,suspension,steering,engineandsoonvariousmainassemblycontrolsysteminfunction,structureorganicgroundcomprehensivetogether,canmakecarsinallkindsofbadworkingconditions,suchasiceroadpavement,commuting,riverbendpavementandtookevasiveactionmovingline,brakingandaccelerationandthedownhillfordifferentconditions,suchasbearing,differenttypepressureanddifferentlevelsoftypewearallhavegooddirectionstability,toshowthebestdrivingperformanee.VDCapplications,inbraking,accelerationandsteeringaspectsofdriver'sfullyreleasedrequest,isthecarofactivesafetydrivinganewmilestone.
VDCofsteeringcontrolsystemismainlybydrivingforeachwheelbrakecontrolandenginepoweroutputcontroltorealize.Forexample,ifthecarturnleftfrontwheelforsteeringtheinadequatecapacitytendtoslipoutofthecorner,VDCsystemcanmeasureimminent,justknowlateralspreadsleftrearbrakeadoptappropriatemeasures.Ifatthesamecorner,becauserearwheeltendtoslipoutoffavoroflateralovermuch,VDCsystemisproperbrakingtofront-rightwheelfailure,maintainthestabilityofthevehicledriving.Inextremecases,VDCsystemcanalsotakereduceenginetoreducethepoweroutput,andtoreducethespeedofthedemandsideadhesionabilitytomaintainthestabilityofthevehicledriving.AdoptVDCsystem,automobileinfoliopavementorcornerofpavementbrakingdistaneestillcanfurtherreduce.
4.CCScarscruisecontrolsystem
AutocruiseControlSystem(CruiserControlSystem,abbreviationforCCS)iscanmakeautomobileworkinenginefavorablespeedrange,reducedriver'sdrivingmanipulatelaborintensity,improvethedrivingcomforttheautomaticdrivingdevice.
Carcruisingsystem(CCS)roleisrequiredbythedriver:
afteranormally-closedswitch,nospeedontheacceleratorpedalcanautomaticallykeepthespeed,makethevehiclewiththefixedspeed.Usingthisdevice,whenonthehighwayafteralongtime,thedriverdrivingnothavetocontroltheacceleratorpedal,reducefatigue,whilereducingunnecessaryspeedchange,canreducesavefuel.
Autocruisecontrolsystemistheearliestdevelopmentoftheautomotiveelectroniccontrolsystem.ThissystemUSESanotherspeedsensor,willspeedsignalinputenginecontrolmicrocomputer,bymicrocomputercontrolvacuumsystemwork.Thissystemcanmakeuseoftheserver,speedcontrolswitchleverandbrakepedalonvacuumliftswitchesetc,itsfunctionandbasicsystemthesame.
Inthissystem,electroniccontroldevicecanaccordchangeofdrivingresistanee,automaticregulationenginethrottleAngle,makethespeedconstant.Suchnotonlyreduceunnecessaryspeedchange,whichsavesfuel,alsoreducedthedriver'sburden.Theelectroniccruisecontrolsystemwhichisshowninfigure2.
Two.Automobilepassivesafetytechnology
1.Seatbelt
Carseatbeltisasafetydevice,itcanincarcollisionorsharpturn,makecrewtokeepitsoriginalpositionaspossiblewithoutmobileandrotation,avoidcollisionwithin-carhardpartscauseddamage.Seatbeltsandairbags,asmoderncarsaresafetydevices,butthelonghistoryoftheformer,popularizethescope.
Theseeminglysimpleseatbel