預(yù)混點(diǎn)燃式氣體燃料發(fā)動(dòng)機(jī)建模及仿真研究.pdf

1、Y870399預(yù)混點(diǎn)燃式氣體燃料發(fā)動(dòng)機(jī)建模及仿真研究AStudyforModelingandSimulationonPremixedSparkIgnitionGasEngine作者姓名揚(yáng)逾學(xué)位類(lèi)型堂迓亟學(xué)科、專(zhuān)業(yè)動(dòng)左扭越皇王猩研究方向凼燃扭電控蘧苤導(dǎo)師及職稱(chēng)塍勤副麴援2006年6月AStudyforModelingandSimulationonPre—mixedSparkIgnitionGasEngineAbstractItisvery

2、significanttodeveloptheelectroniccontrolsystemforgasengineAsitcanuseenergysourcesefficiently，andimprovethestructureofenergy，thenprotecttheglobalenvironmentDevelopingtheelectroniccontrolsimulationsystemforpre—mixedsparkig

3、nitiongasenginecanprovideaworktableforthestudiesofcontrolstrategybasedonmodelandthedevelopmentoftheelectroniccontrolsystemThispaperstudiedthemodelsofpre—mixedsparkignitiongasengineparticularly，whichadoptedthemethodofmech

4、anismanalysisandsystemidentificationFirstly，forthecollectionofenginecharacteristicparameterscorrectly，thestaticanddynamiccalibrationexperimentofthehottypeofmassairflowsensorswasbroughttoSuccessonthecalibrationexperiments

5、tagewhichwasdesignedbyUSThestaticassembledpolynomialmodelbasedonsubsectionfittingofthehotfilmandwiretypeofMAFsensorsanddynamicnonlinearmodelofthehotfilmtypeofMAFsensorbasedonassembledHammersteinmodelsandlinearneuralnetwo

6、rkmodelwereidentifiedcorrectIySecondly，theflowcharacteristicoftheintakesystemofpremixedsparkignitiongasenginewasstudiedonthevacuumpump。Thedischargecoefficientmodelsoftheairvalve，thegasvalveandthesubsystemofthemixerandthr

7、ottleweremodeledTheirworkingflowcharacteristicswereanalyzedAndthedynamicmodeloftheintakesystemwasidentified。Thirdly，amassofengineexperimentsweredoneontheengineexperimentbench，whichwereunderthesteadyconditionusingcompress

8、ednaturalgasandLPGandthedynamicconditionusingLPGThemanifoldpressuremodel，crankdynamicsmodeI，volumetricefficiencymodel，manif。ldpressureandspeedandexhaustemissionpredictedmodel，indicatedthermalefficiencymodelandspeedgovern

9、orsystemmodelwereidentifiedrespectivelyTheexhaustemissioncharacteristicoftheengineusingcompressednaturalgaswasanalyzedbysimulatingbasedontheexhaustemissionpredictingmodelLastly，thewholeenginesystemsimulationmodelbasedonM