汽油機(jī)電子調(diào)速器動(dòng)態(tài)特性的研究.pdf

1、西南農(nóng)業(yè)大學(xué)碩士學(xué)位論文汽油機(jī)電子調(diào)速器動(dòng)態(tài)特性的研究姓名：陳燕慧申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：農(nóng)業(yè)機(jī)械化工程指導(dǎo)教師：劉峰20050501西南農(nóng)業(yè)人學(xué)碩上學(xué)位論文英文摘要ABSTRACTThesedays，theinternal‘combustionengineappliedintheagriculturalmachinerysuchasplantprotectingmachine，horticulturalmachine，aremainl

2、ysmallscalegasolineInthecourseofwork，thegasolineoftenworkswithitsloadchangingconstantlywhichleadslargefluctuationofratiospeed，theratiospeedcanbestabilizedbychangetheopeningdegreeofthebutterflyvalveTherefore，speedgovernor

3、mustbeadoptedonthegasolineengineAndnowthemostappliedspeedgovernorisofmechanicalwithloweradjustmentabilityandlongertimeoftransmissionWiththefurtherapplicationofthesmall—scalegasoline，thedemandtotheenginealsoincreasesTomee

4、tthedemandsofmarketandimprovetheperformanceoftheengine，theexperimentsofdigitalelectronicgovernoronsmallgasolineengifieshavebeencarriedouttoobtaindataAnalyzingthesituationoftheelectricgovernorsystematicallythispaperresear

5、chintothemeasurestoimprovethedynamiccharacteristicsinthemiddleoftransmissionoftheelectronicgovernorTherelationbetweenthechangeofthespeedandthechangeofthebutterflyvalvehasbeenaddressed，andtheimpacttheadjustmentamountonthe

6、dynamiccharacteristicshasbeendiscussedThecontroloffiagmentaldigitalPIDisadoptedtoimprovethedynamiccharacteristicsofelectronicgovernorbasedOUthefeatureoftheUansmissionperiod，suchasimprovingdynamicstateresponsespeedofelect

7、ronicgovernoramelioratingratioofinstantaneousmodulationeliminatingoverspeedintimeandshorteningstabletimeTheelectronicgovernordependsoncontrollingsoftwaretealizethefunctionofregulationandcontrol，keepingtherotationalspeedo

8、fthepetrolenginewithintherangegivenwhiletheloadbeingchangingTheshoflcomingsofmechanicgovernoraleovercomeCharacteristicssuchasratioofstableandinstantaneousmodula娃0n’thetimelasting，mbecontrolledbyprogramTheelectronicgovern

9、orisversatileandpossessesextensionalabilityTheexecutivemechanicisafourphrasemotorwhichtransformtheelectricpulsesintoangularsignalsIfthesoftwareisappropriate，thethrottlecnbedrivendirectlyTheelectronicgovernorhashighprecis

10、eofcontrol，andthecontrolsystemissimplewithfewercomponentsandhigherreliabilityTheresultofanumberofexperimentsshowsthatwhenthespeedofthegasolineengineis3000rpmRatioofinstantaneousmodulationoftheelectronicspeedgovernorcanre

11、ach58％anditsstabilizationtimecallreach31sAndthetestresultsansuperiortothenationalsec—torstandardThewholeelectronicgovernorisworthawidepopularizationforitssimplestructureandlowerpriceKeyword：ElectronicgovernorPetrolmachin