卡特彼勒电控柴油

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1、CaterpillarElectronicEngine卡特彼勒电控柴油机1发动机控制模块(ECM)各种传感器(Sensors)喷油器监视系统主要构成部件21.电控柴油机的大脑发动机控制模块（ECM）全权的发动机电子控制记录发动机故障改进的发动机故障诊断方式发动机的监视和保护更多的程序定制功能3基于两个32位微处理器体系的ECM监视发动机运行参数，由此提供精确的燃油计量和喷射正时控制。出色的燃油消耗、性能、耐久性、可靠性。燃油进口燃油出口E.C.M.J240针接口E.C.M.J140针接口5Electronic电子Control控制Module模块Ad

2、vanced高级Diesel柴油Engine发动机Management管理系统燃油冷却管道40针接口橡胶隔离加强的铝合金密封盒体7ECM的主要功能PowerscomponentsControlstheengineMonitorssensorinput8电子调速器发动机逻辑控制空燃比图扭矩图关机油门速度正时齿轮理想转速rpm扭矩校正空燃比校正实际转速rpm到各喷油器的信号燃油喷射控制信号转换传感器大气压力、进气歧管压力机油、燃油压力排气温度、冷却水温命令转速rpm9正时发动机转速供油量中冷器温度30-25-20-15-10-5--25-20-15-10-

3、52000-1750-1500-1250-1000-750--120-100-80-60-40-2010传感器的输入信息可以控制发动机的运行并显示给操作者。压力传感器温度传感器位置传感器速度传感器2.ECM的输入—传感器11ThissensorprovidesenginespeedandcrankshaftpositioninformationtotheECM.Heavyhex-shapedaluminumbodyfordurabilityStraightthreado-ringmountforaleak-freeengineDeutschconnec

4、torfortrouble-freeoperationSpeedTimingSensor12Incriticalapplications,backupsensorinsuresengineup-timeECMswitchestobackupwithoutinterruptioninengineoperationDualSpeedTimingSensors13SpeedTimingSensor(ActiveSensor)Theactivesensorincorporatesapoweredcircuitinthesensor.Thissensorhast

5、hreewires.Thefirstwiresupplies13.2voltsfromtheECMtopowerthesensorboard.Thissupplyvoltageispreciselycontrolledto±0.5volts.ThesecondwireisagroundwirefromtheECMthatsuppliesazerovoltreference.ThethirdwireisthesignalvoltagetotheECM.14SensorreadsspecialtoothpatternoncamshaftgearSensor

6、sendsasignaltotheECMaseachtoothpassesUniquepatternofteethindicateenginepositiontotheECMSpeedTimingSensorMounting15Simple,effectivedesignAllapplicationsutilizedualsensorsforreliabilitySpeedTimingSensor(PassiveSensor)Thepassivesensordoesnotincorporateactiveelectroniccircuitry.This

7、sensorisusedonthe3126Bengine.Thesensorhasapermanentmagnetandacoilofwireinside.Achangeinthemagneticfieldinducesavoltageintothesensor.TheECMreadstheincreasesanddecreasesinvoltagefromthesensorasasignal.16TemperaturesensorscontinuouslymonitorsystemtemperaturesandsendinformationtoECM

8、Heavybrassbodyfortrouble-freeserviceLargehexonb