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1、CaterpillarElectronicEngine卡特彼勒電控柴油機1發(fā)動機控制模塊(ECM)各種傳感器(Sensors)噴油器監(jiān)視系統(tǒng)主要構(gòu)成部件21.電控柴油機的大腦 發(fā)動機控制模塊（ECM）全權(quán)的發(fā)動機電子控制記錄發(fā)動機故障改進的發(fā)動機故障診斷方式發(fā)動機的監(jiān)視和保護更多的程序定制功能3基于兩個32位微處理器體系的ECM監(jiān)視發(fā)動機運行參數(shù)，由此提供精確的燃油計量和噴射正時控制。出色的燃油消耗、性能、耐久性、可靠性。燃油進口燃油出口E.C.M.J240針接口E.C.M.J140針接口5Electronic電子Control控制Module模塊Ad
2、vanced高級Diesel柴油Engine發(fā)動機Management管理系統(tǒng)燃油冷卻管道40針接口橡膠隔離加強的鋁合金密封盒體7ECM的主要功能PowerscomponentsControlstheengineMonitorssensorinput8電子調(diào)速器發(fā)動機邏輯控制空燃比圖扭矩圖關(guān)機油門速度正時齒輪理想轉(zhuǎn)速rpm扭矩校正空燃比校正實際轉(zhuǎn)速rpm到各噴油器的信號燃油噴射控制信號轉(zhuǎn)換傳感器大氣壓力、進氣歧管壓力機油、燃油壓力排氣溫度、冷卻水溫命令轉(zhuǎn)速rpm9正時發(fā)動機轉(zhuǎn)速供油量中冷器溫度30-25-20-15-10-5--25-20-15-10-
3、52000-1750-1500-1250-1000-750--120-100-80-60-40-2010傳感器的輸入信息可以控制發(fā)動機的運行并顯示給操作者。壓力傳感器溫度傳感器位置傳感器速度傳感器2.ECM的輸入—傳感器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
