中英文文献翻译—汽车ABS技术及其发展趋势.docx
- 文档编号:54490
- 上传时间:2022-10-01
- 格式:DOCX
- 页数:10
- 大小:21.71KB
中英文文献翻译—汽车ABS技术及其发展趋势.docx
《中英文文献翻译—汽车ABS技术及其发展趋势.docx》由会员分享,可在线阅读,更多相关《中英文文献翻译—汽车ABS技术及其发展趋势.docx(10页珍藏版)》请在冰豆网上搜索。
附 录
附录A.
CarABSTechnologyandDevelopmentTrend
Inthecarbeforetheemergenceofabs,usedcaristheopenloopbrakesystem.Itscharacteristic isthebraketorqueonlyanddriversofthesizeofthemanipulationoftheforce,brakingforcedistributionregulationandthesizeofthebrakesonandtype.Withnowheelthemotionoffeedbacksignalmeasurement,can'tknowduringwheelbrakespeedandholdingindeath,caryoumayadjustaccordinglywheelcylinderorthegaschamberofthesizeofthebrakepressure.Soinanemergencybrake,inevitablyappearwheelontheground,holdingindeathdraggedthephenomenonofsliding.
Whenthewheellock,thegroundoftheperformancewaspoor,thelateralattachedcanprovidethelateraladhesionissmall,carbyexternalforceinanyminuteundertheactionofwillappeardirection,easilyhappenedinstabilityproblemsoftrafficaccidents.Inthewetpavementorsnowandiceontheroad,thedirectionofbraketheinstabilityofthephenomenoncanmoreserious.towingItisthroughthebasicfunctionofsensors'wheeleachtransientstateofmotion,andaccordingtothemotioncorrespondinglyadjustthesizeofthebraketorqueintoavoidthewheelsholdingindeath,itisaphenomenonofclosed-loopbrakesystem.
Itistheelectroniccontroltechnologyincarsofthemostsuccessfulapplicationproject,oneofautobrakeantilockbrakesystemscanmakethecarinthebrakingmaintainstabilityandshortenthedirectionbrakingdistance,effectivelyimprovethedrivingsafety.
CarABScansayisthemostimportantcarsafetyhistoryofthethreegreatinventions(theothertwoareairbagwithseatbelt),
ABSisalsoothersafetydevice(suchasESPdrivingdynamicstabilitysystemandEBDbrakingforcesbaseddistributionsystem)Becausemoneyspenttoobig,ABSthepracticaluseoftheearlyrailwayvehicleoraircraft.70s,digitalelectronictechnologyandlargescaleintegratedcircuit,fortherapiddevelopmentofABSsystemlaysafoundationtopracticalapplication.Boschcompanyin1978firstlaunchedthedigitalelectroniccontrolunitofthebrakesystem,andABS2Boschholdingdevicein theMercedesBenz,whichopenedonthemodernABSsystemdevelopmentsequence
AlthoughtheBoschABS2ofelectroniccontroldeviceisaseparationofthecomponents,butduetothedigitalelectroniccontroldeviceandanalogelectroniccontroldevice,thereactionspeed,comparedtothecontrolaccuracyandreliabilityaresignificantlyimproved,therefore,BoschABS2controleffectalreadyisquitegood.Fromthenon,Europe,AmericaandJapan,manyprofessionalcompanyandbrakecarcompanieshavedevelopedavarietyofABSsystem.Accordingtostatistics,thewholeworldhasmorethan60%ofnewcarsequippedwithABSdevice.
Whenthecarbrakewheelspeedandthedifferencesbetweenbodyspeed,canleadtothewheelandtheroad,whenthewheelslippagebetweenproducepurerollingwayandthepavementatcontact,thesliprateiszero,andwheellockthesliprateis100%.Whentheslipratebetween10%~30%,thelargesttransferofpower.Thebasicprincipleofbrakingantilockbrakesystem(2,3]isbasedontheaboveresearch,throughthecontrolregulationsysteminpower,brakingprocess,tothewheelintheslipratecontrol,withinthescopeoftherighttoobtainthebestbrakingeffect.ABSsystemhardwaremainlybythewheelsensor,electroniccontroldevices,brakepressureregulatorthreemajorcomponents,constituteatothesliprateisthecontrolofthetargetoftheclosed-loopcontrolsystem.Thewheelspeedsensorandthedatatransfertotheelectroniccontroldevice.Controldeviceisamicroprocessor,accordingtothewheelspeedsensorsignaltocalculatethespeedofthecar.Inthebrakingprocess,reducingspeedandcontroldeviceofprogrammedidealreducingthespeedofcharacteristiccurveincomparison.Ifcontroldevicejudgethewheelreducingspeedtoolargeandthewheelwillembracedied,signaltohydraulicregulator,hydraulicregulatorisaccordingtothecontroldeviceofthesignaltothebrakewheelcylinderofhydrauliccontrol(theboost,thepressureorbloodpressure).Brakepressuretoadjustthefrequencyofthecycleupto6~20Hz.ABStechnologyatthecoreoftheproblemisthecontrolalgorithmofresearch.ThecontrolcarABSisacomplex,essentialnonlinearcontrolproblem.Inrecent years,domesticandforeignscholarsinthecontrolofABScalculate
Methodonthemanytheoreticalresearch,mainlyinthefollowingseveralcontrol
methods.NowautomotiveABSsystemmostoftheproductsaretheaddition,subtractionspeedcontrol,andadditionalthresholdsomeauxiliarythreshold,notinvolvespecificmathematicalmodel.Thresholdcontrolfornonlinearsystemsisaneffectivecontrolmethod.Inthebrakingprocess,canbeaprimaryangularvelocitythreshold,whenactual
a
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 中英文 文献 翻译 汽车 ABS 技术 及其 发展趋势