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1、INTERNATIONA1.STANDARDISO4138editionFifth202109Passengercars-Steady-statecircu1.ardrivingbehaviourOpen-1.ooptestmethodsVoituresPQrtiCUIiereSTenuederouteenregimepermanentsurIrajectoireCircu1.aireMethodesdessaienbouc1.eoverteO1.SO2021COPYRIGHTPROTECTEDDOCUMENTISO2021岫rkdea/山thUcdOthcnviscjftc三orrtmceh
2、DVBiwixuioiti08phnn11UatiocBhrhotocp)Mng,ptbcatonpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanherequestedfromeitherISOattheaddressbe1.oworISniK盟RAucekdHpfff1.QbbGgbodyIcommitteehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,gov
3、ernmenta1.andnon-governmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththee1.ectrotechnica1.standardization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenanceare狐陶岫1搬of1.SOIEC(M
4、1.糖n。慨做恪亦前嘛%M&琪M拓ifer%cordancetheeditoria1.ru1.esoftheISO/IECDirectives.Part2(seewww.iso.org/direc1.ives).时歌ionrightsd般掂出1n隔嗯琳娜ns仲(f神出飘冲做用州出doc1.三r强心创1.subjectofanypatentrightsidentifiedduringthedeve1.opmentofthedocumentwi1.1.beintheIntroductionand/orontheISO1.istofpatentdec1.arationsreceived(seewww
5、.iso.org/pa1.ents).Anytradeusedinthisconstitutenameendorsement,documentisinformationgivenfortheconvenienceofusersanddoesnotForanexp1.anationofthevo1.untarynatureofstandards,themeaningofISOspecifictermsand黑盛显眼e(用辅tionc。的福P奥爽融Mthe可舐部潴陶温福ticn1盘件器厚吗糕?盘?iso/foreword.hun1.ThisdynamicsandchassisbyTechnica1
6、.IZehfcZedocumentwaspreparedcomponenfs.CommitteeISO/TC22,Roadvehic1.es,SubcommitteeSC33.Thisfiftheditioncance1.sandrep1.acesthefourthedition(ISO4138:2012),whichhasbeentechnica1.1.yrevised.Themainchangescomparedtothepreriouseditionareasfo1.1.ows:editoria1.changes,athirdvariationoftheconstantspeedtest
7、methodwasadded.Thisvariationinvo1.vess1.ow1.yincreasingthesteering-whee1.ang1.e.ISO2021-A1.1.rightsreservedIntroductionvehic1.e,dynamicbehaviourofdriverVehideprevai1.ingenvironment,aspectconstitutesac1.osed-1.oopsystemgivennumberaccuratedescriptionofthebehaviouroftheroadvehic1.einvo1.vesinformationo
8、btainedfromaovera1.1.dynamicbehaviour.canon1.ybeconsideredsignificantforacorresponding1.ysma1.1.partofthesufficientpropertiesandaccidentCorrc1.ationsubstantia1.accidentavoidancenecessarytodynamicstatistics.021-AHrightsresenedThemainPUrPOSeofthisdocumentistoproviderepeatab1.eanddiscriminatorytestresu
9、1.ts.Thetogetherwithitsaroadandtheisverrimportantofactivevehic1.esafety.Anythatisunique.Thetaskofeva1.uatingthedynamicbehaviouris,therefore,verydifficu1.tsincethesignificantinteractionsofthesedriver-vehic1.e-environmente1.ementsareeachcomp1.exinthemse1.ves.Acomp1.eteandofdifferenttests.Sincethistest
10、methodquantifieson1.yonesma1.1.partofthecomp1.etevehic1.ehand1.ingcharacteristics,theresu1.tsofthesetestsMoreover,insuf11cientknow1.edgeisavai1.ab1.econcerningthere1.ationshipbetweenovera1.1.vehic1.edynamicandre1.iab1.eontheavoidance.Abetweenamountofworkisandvehic1.eacquirepropertiesingenera1.andtheresu1.tsofthesetestsinparticu1.ar.Consequent1.y,anyapp1.icationofthistestmethodforregu1.ationpurposeswi1.1.needprove
