Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,8/21/2012,#,Click to Edit Title,1,AVL Indicom SetUp,(,AVL,燃烧分析设置),Equipment&set-up of AVL Indicom system for combustion measurement,(,AVL,燃烧分析的基本设置),Angle encoder connection,(校标仪安装),Cylinder Pressure transducer mounting and set-up(,压力传感器及设置,),Ignition signal set-up,(点火信号设置),IndiCom Measurements,(采样),IndiCom Results,(采样结果),IndiCom use for engine calibration,(在台架标定的应用),1AVL Indicom SetUp(AVL燃烧分析设置)E,2,Engine Geometry Data,(发动机机械参数),Type(,类型,)strokes/cycle(,冲程,)stroke,(缸径),conrod(,活塞连杆中心距,)bore(,行程,)compression,(压缩比),polytropic coefficient(,汽油,1.32,,柴油,1.37,,直喷,1.35),。,点火顺序及转角。,2Engine Geometry Data(发动机机械参数),3,Angle Encoder,(较标仪),安装要求:和皮带轮的同心度不大于,0.02mm,3Angle Encoder(较标仪)安装要求:和皮带轮的同,4,Angle Encoder,(较标仪),设置或者选择较标仪类型,Type,。,设置发动机压缩上止点(通常设置,1,缸压缩上止点),4Angle Encoder(较标仪)设置或者选择较标仪类,5,Angle Encoder TDC Determination,(较标仪压缩上止点测定),Conduct TDC Determination at:,2000rpm WOT,(,Motored,),(,油门全开倒拖,),Coolant Temp,(水温),=90C,Oil Temp,(油温),=90C,Use Loss Angle=0.7CA for,Motored Pressure.,AVL TDC Sensor is a more,Accurate Method!,(使用,AVL,压缩,上止点传感器将更精确。),5Angle Encoder TDC Determinati,6,IndiCom Signal Set-Up,(信号设置),6IndiCom Signal Set-Up(信号设置),7,Charge Amplifier,(信号放大器),7Charge Amplifier(信号放大器),8,Pressure Transducers,(压力传感器),Use sensitivity according to pressure range,(压力变化敏感度),20.70 for 100Bar range(Gasoline),(汽油机),20.55 for 250Bar range(Diesel),(柴油机),Pressure Transducer mounted in the cylinder head are more,reliable than spark plug transducers(but more difficult to fit).,8Pressure Transducers(压力传感器)Us,9,Charge Amplifier Set-up,(放大器设置),9Charge Amplifier Set-up(放大器设置,10,Cylinder Pressure Set-up,(绝对压力设置),由于此类型压力传感器只能测量压力的变化值,而不能直接测量出压力的绝对值,因此按图示设置零位修正(,zero level correction,)以便能计算出压力的绝对值。,10Cylinder Pressure Set-up(绝对压,11,Cylinder Pressure Set-up,(绝对压力设置),观察窗口的设置,11Cylinder Pressure Set-up(绝对,12,Cylinder Pressure Set-up,(绝对压力设置),12Cylinder Pressure Set-up(绝对,13,Ignition Signal Set-up,(点火信号设置),直接从点火线圈和,ECU,连接线上取点火信号。,设置当电压下降到多少,V,时火花塞点火。(如,1V,,这和点火线圈的特性有关),13Ignition Signal Set-up(点火信号设,14,Ignition Signal Set-up,(点火信号设置),设置点火信号的工作范围及观察窗口。,14Ignition Signal Set-up(点火信号,15,Ignition Signal Set-up,(点火信号设置),15Ignition Signal Set-up(点火信号,16,IndiCom Results,(采样结果),选择要测量和计算的参数,16IndiCom Results(采样结果)选择要测量和计,17,Pmax,(最大燃烧压力),17Pmax(最大燃烧压力),18,PMax,(最大燃烧压力),18PMax(最大燃烧压力),19,Indicated Mean Effective Pressure,(平均有效燃烧压力),平均有效燃烧压力,IMEP=pdv,,反应发动机的做工能力,,IMEP,越大,发动机做工越多。,19Indicated Mean Effective Pre,20,Indicated Mean Effective Pressure,(平均有效燃烧压力),20Indicated Mean Effective Pre,21,Heat Release,(热量释放),热量释放(燃油燃烧)一般测量,AI10%,,,AI50%,AI75%,AI90%,时的曲轴转角。,21Heat Release(热量释放)热量释放(燃油燃烧),22,Heat Release,(热量释放),22Heat Release(热量释放),23,Heat Release,23Heat Release,24,Knock,(爆震),爆震采样时间,0.1DC,才能有效观测到爆震。,24Knock(爆震)爆震采样时间 0.1DC才能有效观测,25,Knock,设置爆震定义,即什么情况下为一次爆震。,25Knock设置爆震定义,即什么情况下为一次爆震。,26,Knock,26Knock,27,Ignition Results,(点火角采样结果),27Ignition Results(点火角采样结果),28,Ignition Results,28Ignition Results,29,LogP LogV Diagram,(,PV,图),29LogP LogV Diagram(PV图),发动机标定常用参数:,1,、,MBF50,(也可用,AI50,),发动机在最佳点火角时(,MBT,),MBF50=81 ATDC,(受爆震影响除外)。,2,、,COV IMEP,反应发动机的燃烧稳定性,一般要求,COV IMEP3%,,放宽条件,COV IMEP Pmax_2sigma(Pmax_2sigma=Pmax.av+2Pmax.st,(,Pmax.av,为,Pmax N(N=300),个循环的平均值,,Pmax.st,为,Pmax N,个循环的标准差),5,、,KP_PK,爆震压力,爆震标定时用来判断爆震的强弱。,6,、,KP_EFRQ,爆震频率,爆震标定时用来判断爆震的频度。,8/21/2012,30,IndiCom use for engine calibration,(在台架标定的应用),发动机标定常用参数:8/21/201230IndiCom u,31,Thermodynamic Correction,Ref:AVL IndiCom User Manual,31Thermodynamic CorrectionRef:,32,Thermodynamic Correction,32Thermodynamic Correction,安全生产日日好,员工生活步步高。,11月-24,11月-24,Saturday,November 16,2024,文明施工,安全生产。,01:15:33,01:15:33,01:15,11/16/2024 1:15:33 AM,质量不光由生产者决定,更应由顾客决定。,11月-24,01:15:33,01:15,Nov-24,16-Nov-24,抓好安全生产促进经济发展。,01:15:33,01:15:33,01:15,Saturday,November 16,2024,善待别人就是善待自已。,11月-24,11月-24,01:15:33,01:15:33,November 16,2024,疏忽一时,痛苦一世。,2024年11月16日,1:15 上午,11月-24,11月-24,安全生产你管我管,大家管才平安,事故隐患你查我查,人人查方安全。,16 十一月 2024,1:15:33 上午,01:15:33,11月-24,持续的质量改进是企业永恒的目标。,十一月 24,1:15 上午,11月-24,01:15,November 16,2024,精打细算降成本,千方百计提效益。,2024/11/16 1:15:33,01:15:33,16 November 2024,全力生产,注意安全。,1:15:33 上午,1:15 上午,01:15:33,11月-24,树立安全观念,坚持安全生产。,11月-24,11月-24,01:15,01:15:33,01:15:33,Nov-24,制造精良产品,培育优秀人才。,2024/11/16 1:15:33,Saturday,November 16,2024,强化服务意识,倡导奉献精神。,11月-24,2024/11/16 1:15:33,11月-24,谢谢大家!,安全生产日日好,员工生活步步高。9月-239月-23Frid,