外文翻译-汽车防抱死系统设计

中南大学译文原文题目：Automobileanti-lockbrakingsystemdesign译文题目：汽车防抱死系统设计学院：机电工程学院专业班级：车辆1002学生姓名：董镇山学号：0806100714中南大学毕业设计英文译文-1-Automobileanti-lockbrakingsystem(ABS)AbstractThisarticleintroducedbrieflytheautomobileanti-lockbrakingsystem(Anti-lockBrakingSystem,iscalledABS)thecontrolprinciple,thecontroltechnologywhichusedinthepresentautomobileanti-lockbrakingsystemhascarriedonthesummaymandhascarriedontheforecasttoitstrendofdevelopment.Keyword:Automobileanti-lockbrakingsystemcontroltechnology1.outlineAlongwithautomobileindustry'srapiddevelopmentandhighway'unceasingconstruction,automobile'travelsecuritymoreandmoretakesseriouslyforpeople.Tosatisfyincomprehensivelythebrakeprocesstheautomobiletothebrakerequest,causethebrakebrakingforceassignmenttohastenreasonably.Theautomobileanti-lockbrakingsystem(i.e.ABS)moreandmorehasappliedontheautomobile.ABSChinesetranslatesisagainstdeadlocksthebrakesystem.Itisonekindhastheskidprevention,againsttodeadlockandsoonmeritautosafetycontrolsystems.ABSisintheconventionbrakesystemfoundationadvancedversiontechnology,separablemechanicalandelectronicformulatwokinds.Onthemodernautomobileinstallstheanti-lockbrakingsystem中南大学毕业设计英文译文-2-massively,ABSbothhastheautomobilesilltochangeunderthestopping,guaranteedthatautomobile'sbrakeyawingstability,preventedtohavetheside-slippingandtorun,wasonthepresentautomobileismostadvanced,thebrakeeffectbestarrestinggear.Theordinarybrakingsystemappliesthebrakeintheslipperyroadsurface,orinemergencybrake,becausethewheeliseasythebrakingforcetosurpassthetireandthegroundfrictionforcehugssafelydies.Theautomobileanti-lockbrakingsystemisreferstotheautomobileinthebrakeprocesstobeablethereal-timedeterminationwheel'sgliderate,theautomaticcontrolfunctiononwheel'sbrakingmoment,preventsthewheeltohugdies.Thusobtainsthebestbrakepotencytheelectronicinstallation.Itcanwheel'sglideratecontrolincertainscope,usefullybetweenthetireandtheroadsurfaceadhesion,reducesthestoppingdistanceeffectively,obviouslyenhanceswhenthecarbrakingcontrollabilityandstability,wheneachkindoftrafficaccidentwhichhasavoidedthewheelhugsdieseasytoappear.Alongwithbrakeintensity'sincrease,thewheelrollingingredientaregettingfewerandfewer,butskidstheingredienttobegettingmoreandmore,generallyexpainsinthebrakeprocesswithgliderateStoskidingredienthowmany.Thegliderateisbigger,the中南大学毕业设计英文译文-3-glideingredientareless.And:u--wheelcenterspeed;r--doesnothavetimethegroundbrakingforcewheelrollingradius;w--wheel'sangularspeed.LongitudinalandthelateraladhesioncoefficientmayexpressforthewheelsliprateiscalledcriticalpointoffixitySK.GripsfastthepaceaccordingtothecontroltheoryissmallerthantheSKregioniscalledthestablebrakearea,whaSKlaterhascustom-madeunstablemovesthearea.ABSispreciselyusesbetweenthepathandtire'srelations,compulsorywheelslidpatecontrolnearbycriticalpointofficitySK,enablesthetoadsurfaceadhesionpropertytobotainthefullestdisplay,thusachievesthebestbrakeeffect.Figure1coeffientofadhesion-glideratecurveAtpresentusesABSmainlybyaroundfastsensor,theelectronic中南大学毕业设计英文译文-4-controlunit,appendicesandsoonpressurecontrolvalveandgroupoflines,pipelineiscomposed.TheABSdevelopmentismainlystudiesthedesignoptimizationoperationandthecontrolproceduresoftware,realizesthereal-timepresisebrakeadjustmenttechnology,simultaneouslyraiseshardware'slevel.2.ConrtoltechnologyusedbyABSnowTheABScontroleffectisdecidedcontroltechnology[4]whichtoagreatextentusesinthesystem.Atpresentusesismainlythelogicalthresholdvaluecontroltechnology.TofurtherenhanceABStheperformance,butalsoproposedsomebasedontheglidetatecontroltechnology,likethePIDcontrol,theglidemodalitychangethesrtucturecontrols,fuzzycontrolandsoon.Eachkindofcontrolapproachestheexpectationbythedifferentcontrolrulethespot.2.1PIDcontrolsThedefinitionexpectsgliderateS0anddifferenceoftheactualgliderateSfore=S-S0,thenthePIDcontrolrulemayberepresentedas:Therefore,theABScontroller'sdesignsumsupfinally中南大学毕业设计英文译文-5-as,accordingtotheABSdynamicsystem,determinedgroupofbestarameterKp,KiandKd,enablewheel'sglideratetoapproachhypothesisgoalS0bythequickestway.2.2TheglidemodalitychangesthestructurecontrolAgainstholdsthedeadbrakebytheautomobilebasicprincipletobepossibletoknow,itsbrakeprocess'sessentialquestioniswheel'sglidetatecontrolincoefficientofadhesionpeakpointSK,thentheglidemodalitychangedstructurebasissystemcondition,thedeviationandthederivativevaluethen,inthedifferentcontrolledarea,byperfectswitch'wayhand-offcontrolquantity'ssizeandthemark,theguaranteesystemintheglideregionverysmallscope,thestatepointlocus(S,*S)alongmovedthefestivalcurvetoslideslipperytothecontrolobjective(SK,0).UsuallytakesthebrakingmomentforcontrolledvariableU,thecutconditionis:AndMb-,Mb+representthebrakingmomentwhichdecidedbythegoverningsystemtoreduce,toincreasetwodifferentconditionsseparately.中南大学毕业设计英文译文-6-Forthecutfunction,e=S-Skistheactualglideratetelativetargetpointdevivation.2.3FuzzycontrolRegardingtaketheglidetareascontrolledmember'santi-lockbrakingsystem,itsinputvaluetakestheexpecatationgliderateandwheelactualglidetatedeviationEaswellas