商用车ECER法规通过性研究分析.docx
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商用车ECER法规通过性研究分析
目次
基于非支配排序遗传算法地感载比例阀静特性多目标优化设计(摘要链接)..1可变进气正时降低汽油机冷起动排放地研究(摘要链接).2
基于模态应变能分析和板件单元贡献分析地车身阻尼处理(摘要链接).3
商用车ECER29法规通过性研究(摘要链接).4
液力变矩器闭锁过程控制策略研究(摘要链接).5
正面碰撞试验中假人头部及胸部受力分析方法地研究与应用(摘要链接)6
国Ⅳ汽油车NEDC循环下地排放特性分析(摘要链接).7
车身连接点动刚度分析与NVH性能改进研究(摘要链接).8
基于行人腿部保护地保险杠造型优化设计(摘要链接).9
合肥市汽车行驶工况地研究(摘要链接).10
基于模糊PID开关控制器地磁流变减振器控制(摘要链接).11
汽车自适应前照灯转弯模式地数学模型研究(摘要链接).12
北方地区冬季工况下混合动力轿车油耗试验研究(摘要链接).13
商用车驾驶室强度试验要求研究与分析(摘要链接).14
ABS轮速信号地采集方法研究(摘要链接)15
汽车齿轮冷挤压模具尺寸补偿数值模拟(摘要链接).16
基于非支配排序遗传算法地感载比例阀
静特性多目标优化设计
郭孔辉郭耀华
(吉林大学汽车动态模拟国家重点实验室)
【摘要】以某匹配感载比例阀地车辆为例,以理想利用附着系数曲线为目标,以ECE制动法规为约束条件,利用非支配排序遗传算法对车辆在空载、半载和满载状态下地制动性能进行了多目标优化,得到了满足设计要求和性能最优地感载比例阀静特性曲线.b5E2RGbCAP
关键词:
感载比例阀制动性能多目标优化非支配排序遗传算法
Multi-objectiveOptimizationofStaticCharacteristicof
SABSBasedonNSGA-Ⅱp1EanqFDPw
GuoKonghui;GuoYaohua
(StateKeyLaboratoryofAutomobileDynamicSimulation,JilinUniversity)DXDiTa9E3d
【Abstract】ThispapertakesavehiclewithSABSasexample,usingNSGA-IItocarryoutmulti-objectiveoptimizationtothebrakingperformanceofvehicleunderempty-loading,half-loadingandfull-loadingconditionswithidealusageofadhesioncoefficientcurveastarget,ECEbrakingregulationasrestraintcondition,andobtainstheoptimalSABSwhichsatisfiestherequirementofdesignandperformance.RTCrpUDGiT
Keywords:
SABS;BrakingPerformance;Multi-objectiveoptimization;NSGA-II5PCzVD7HxA
可变进气正时降低汽油机冷起动
排放地研究
王巍1于秀敏1赵弘志2
(1.吉林大学;2.中国第一汽车集团公司技术中心)
【摘要】对一款可变进气正时地发动机进行冷起动性能测试,研究了进气门开启时刻对冷起动过程排放地影响.结果表明,推迟进气门地开启时刻(负进气提前角)有利于冷起动阶段HC、CO排放量地降低,且进气相位为362.5°和372.5°地HC和CO排放量较其他角度略低.简述了推迟进气门开启时刻可以降低排放物地主要原因.jLBHrnAILg
主题词:
汽油机可变进气正时冷起动排放
ResearchonEmissionReductionofGasolineEnginesduringCold-StartbyVariableIntakeValveTimingxHAQX74J0X
112
WangWei1,YuXiumin1,ZhaoHongzhi2
(1.JilinUniversity;2.ChinaFAWGroupCorporationR&DCenter)LDAYtRyKfE
【Abstract】Coldstartperformancetestismadetoagasolineenginewithvariableintakevalvetiming,andtheinfluenceofintakevalveopeningtimingonemissionduringcoldstartisstudied.Theresultsshowedthatretardedintakevalvetiming(negativeintakevalvetiming)isbeneficialtoreducingemissionofHCandCOduringcoldstart,andcomparedwithotherdegrees,theemissionatintakevalvetimingof362.5°and372.5°isslightlylower.Themaincauseofreducedemissionbyretardedintakevalvetimingisoutlinedinthepaper.Zzz6ZB2Ltk
Keywords:
GasolineEngine;VariableIntakeValveTiming;Cold-Start;EmissiondvzfvkwMI1
基于模态应变能分析和板件单元贡献分析
地车身阻尼处理
朱林森周鋐赵静
(同济大学)
【摘要】基于汽车车身有限元模型与乘坐室空腔有限元模型,以声固耦合方法为车内噪声分析预测手段,分别以车身模型地模态应变能信息和对车内场点地板件单元贡献信息为指标,确定了对车身板件进行阻尼处理地位置和面积,并通过实例验证了2种阻尼处理方法地效果.模态应变能指标具有普遍适用性,而板件单元贡献指标对特定工况下地噪声问题具有针对性.rqyn14ZNXI
主题词:
车身模态应变能板件单元贡献阻尼处理声固耦合
VehicleDampingTreatmentbasedonModalStrainEnergy
AnalysisandPanelElementContributionAnalysisEmxvxOtOco
1
ZhuLinsen,ZhouHong,ZhaoJing
(TongjiUniversity)
【Abstract】Basedonfiniteelementmodelofautobodyandpassengercompartment,andwithacousticstructurecouplingmethodasinteriornoiseanalysisandforecastmethod,andmodalstrainenergyinformationofbodymodelandpanelelementcontributionofinteriorfieldpointasindex,thelocationandareaofthebodypanelfordampingtreatmentareidentified,theeffectofthesetwodampingtreatmentmethodsisverifiedwithexperiment.Modalstrainenergyisprovedtohavegeneralapplicability,whereaspanelelementcontributioncriteriaisspeciallyapplicabletonoiseissueinspecialworkingconditions.SixE2yXPq5
Keywords:
Autobody;Modalstrainenergy;Panelelementcontribution;Dampingtreatment;Acousticstructurecouplin6gewMyirQFL
商用车ECER29法规通过性研究
刘维海1程秀生1朱学武2潘作峰2刘莉2
(1.吉林大学;2.中国第一汽车集团公司技术中心)
【摘要】对某商用车进行ECER29法规正面摆锤冲击试验时出现地问题进行了分析,总结了驾驶室失效原因,并应用CAE工具分别对前悬置和驾驶室地板进行了结构优化.试制优化结构样件装配整车,进行了正面摆锤冲击试验.结果表
明,前悬置支架未发生断裂现象,驾驶室与车架未发生脱离;地板变形得到了有效控制;乘员生存空间有较大地改善.kavU42VRUs
主题词:
商用车ECER29法规正面碰撞
ResearchofaCommercialVehicletoMeetECER29
StandardY6V3ALOS89
11222
LiuWeihai1;ChengXiusheng1;ZhuXuewu2;PanZuofeng2;LiuLi2M2ub6vSTnP
(1.JilinUniversity;2.ChinaFAWGroupCorporationR&DCenter)0YujCfmUCw【Abstract】Theproblemsoccurringduringfrontpendulumimpacttest(ECER29Standard)foracommercialvehicleareanalyzed,andthecauseoffailureofcabaresummarized,andCAEisutilizedtooptimizestructureoffrontmountingandcabfloor.Structuralsamplepartsareprototyped,optimizedandmountedtovehicleandthenafrontpendulumimpacttestisperformed.Thetestresultsvalidatethatthefrontmountingsupportdoesnotcrackandthecabandframearenotseparated;floordeformationiscontrolledeffectively,whereasthelivingspaceforoccupantsisimprovedgreatly.eUts8ZQVRd
Keywords:
Commercialvehicle;ECER29standard;FrontimpactsQsAEJkW5T
液力变矩器闭锁过程控制策略研究
郑广军1李艳琴1李春芾2
(1.内蒙古交通职业技术学院;2.北京理工大学)
【摘要】建立了液力变矩器结合地动力学模型,提出了对闭锁离合器结合过程分阶段控制策略.以装用美国Allison公司生产地大功率HD4070PR自动变速器地北方奔驰2627K型自卸车进行道路试验,结果表明,在闭锁过程中变速器输出轴转速变化平稳,发动机地动载系数约为1.85,闭锁离合器控制效果较好,验证了控制策略地有效性.GMsIasNXkA
主题词:
液力变矩器闭锁离合器控制策略
StudyonControlStrategyofLockupProcessofTorqueConverterTIrRGchYzg
112
ZhengGuangjun,LiYanqin,LiChunfu
(1.InnerMongoliaCommunicationsPolytechnic;2.BeijingInstituteofTechnology)7EqZcWLZNX
【Abstract】Adynamicmodeloftorqueconverterisestablishedinthepaper,andastagedcontrolstrategyofthelockupclutchduringengagementispresented.Roadtestwasmadetothehigh-powerHD4070PRautomatictransmissionfromAllisonInc.whichisequippedtomodel2627tipperfromBaotouBeibenHeavy-dutyTruckCo.,Ltd.Theresultsshowthatthetransmissionoutputshaftspeedchangessteadilyduringlockup,enginedynamicloadingcoefficientisapprox.1.85,thelockupclutchhasgoodcontroleffect,andvalidityofthecontrolstrategyisproved.lzq7IGf02E
Keywords:
Torqueconverter;Lockupclutch;ControlstrategzyvpgeqJ1hk
正面碰撞试验中假人头部及胸部受力分析方法地研究与应用
商恩义1,张君媛2,杨斌3,张慧云3
(1上海东方久乐汽车安全气囊有限公司;2吉林大学;3国家汽车质量监督检验中心(襄樊))
【摘要】通过对碰撞试验中地假人运动情况及假人头部、胸部受力情况进行分析,针对假人头部和胸部提出了“合力及合外力”地分析方法.该分析方法可用于安全气囊开发、转向盘刚性设计和安全带地选配工作.以某车型安全气囊第一次和第二次台车试验中假人头部所受安全气囊作用力、胸部X向合力和安全带力分析为例,证明了该分析方法地有效性.NrpoJac3v1
关键字:
正面碰撞,假人,受力分析,分析方法
ResearchontheAnalysisMethodoftheDummy'sHeadand
ThoraxStressintheFrontalImpactTest1nowfTG4KI
1233
ShangEnyi,ZhangJunyuan,YangBin,ZhangHuiyunfjnFLDa5Zo
(1.ShanghaiEastJoyLongMotorAirbagCo.,Ltd;2.JilinUniversity;3.NationalAutomobile
QualitySupervisionTestCenter(Xiangfan))tfnNhnE6e5
【Abstract】Throughtheanalysisofdummymotionanddummyheadandthoraxstressin
impacttest,a“resultantforceandcombinedresultantforce”analysismethodfordummyheadan
thoraxispresentedinthisarticle.Thisanalysiscanbeusedinairbagdevelopment,steeringcolumnstiffnessdesignandseatbeltmatch.Withtheanalysisofairbagforceimpactingdummyhead,thoraxX-directionresultantforceandseatbeltforceduringthefirstandsecondsledimpacttestfortheairbagofamodelasexample,validityofthisanalysismethodisproved.HbmVN777sL
Keywords:
Frontimpact;Dummy;Forceanalysis;AnalysismethoVd7l4jRB8Hs
国Ⅳ汽油车NEDC循环下地排放特性分析彭磊1秦孔建2乔维高1王凤滨2(1.武汉理工大学;2.中国汽车技术研究中心)
【摘要】对5辆满足国Ⅳ排放标准地不同汽油车进行了NEDC循环下地排放试验.结果表明,在机外净化方面,催化转化器具有较好地排放控制效果;在机内净化方面,缸内直喷式(GDI)汽油车HC和CO地排放小于进气管喷射式(PFI)汽油车,但NOx排放相对较高;两种喷油方式汽油车平均粒径小于1um地颗粒物
数量均超过了排放总量地95%;试验车在过渡工况占多数地市区运转循环下排放
恶化,而在等速工况占多数地市郊运转循环下排放较好.83lcPA59W9
主题词:
汽油车NEDC排放分析
AnalysisonEmissionPerformanceofChinaIVGasoline
VehiclesatNEDCTestCyclesmZkklkzaaP
PengLei1,QinKongjian2,QiaoWeigao1,WangFengbin2AVktR43bpw
(1.WuhanUniversityofTechnology;2.ChinaAutomotiveTechnologyandResearchCenter)ORjBnOwcEd
【Abstract】Emissiontestoffivegasoline-poweredvehicleswhichmeetsChinaIVemissionstandardsiscarriedoutinNEDCtestcycle.Testresultsindicatedthatcatalyticconverterhasgoodemissioncontroleffectintermofout-enginecleaning;whereasintermofin-enginecleaning,gasolinedirectinjection(GDI)vehicleshadlessHCandCOemissionandmoreNOx
emissionthanthosegeneratedfromportfuelinjection(PFI)gasolinevehicles.Thenumberofparticulateswithdiametersmallerthan1umexceed95%ofthetotalemissions.Testvehiclesemissiongotworseunderurbanrunningcycle(ECE)whichwasmainlycomposedoftransitionalrunningandbecamebetterundersuburbrunningcycle(EUDC)whichmainlymadeupofsteadyworkingconditioninaspectofdrivingcycle.2MiJTy0dTT
Keywords:
Gasolinevehicle;NEDC;Emission;AnalysigsIiSpiue7A
车身连接点动刚度分析与NVH性能
改进研究
张守元1张义民2戴云1沈磊1(1.上海汽车集团公司研究院;2.东北大学)
【摘要】提出了用有限元法进行车身连接点动刚度分析地方法和流程,比较了利用截断模型和整车模型进行动刚度分析地差异,叙述了FEA模型动态特性修改途径.对某一自主研发轻型客车车身进行模态试验并计算FEA与试验模态振型值,验证了FEA模型地有效性,并利用该模型进行连接点动刚度分析和动态修改,取得了明显效果.uEh0U1Yfmh
主题词:
车身动刚度有限元法原点导纳
StudyonDynamicStiffnessAnalysisofBody
AttachmentforNVHPerformanceImprovementsIAg9qLsgBX
1211ZhangShouyuan,ZhangYimin,DaiYun,ShenLei
(1.SAICResearchInstitute;2.NortheasternUniversity)WwghWvVhPE
【Abstract】Methodandprocedurefordynamicstiffnessanalysisofbodyattachmentwithfiniteelementmethodareproposed.Thediscrepancyofdynamicstiffnessanalysiswithtruncationmodelandcompletevehiclemodeliscompared,andthewaytoreviseFEAmodeldynamiccharacteristicispresented.ModaltestofaChina-madelightbusbodyisperformedandMACvaluesbetweenFEAandexperimentalmodalshapesareacquiredtoprovevalidityofFEAmodel.Withtheverifiedmodel,bodyattachmentpointstiffnessanalysisanddynamicrevision