汽油機點火參數測量的研究.pdf

1、重慶大學碩士學位論文汽油機點火參數測量的研究姓名：茍欣璞申請學位級別：碩士專業(yè)：電氣工程指導教師：吳言蓀20030401重慶大學碩士學位論文英文摘要ABSTRACTWiththedevelopmentoftheautomobileindustry，alowcostportableinstrumentfbrignitionparametersingasolineengineisin11ighdemandbybothdesignengine

2、ersandservicemenTheshortofsuchkindofinstrumentmakesitimportanttodevelopalowcostmethodforignitionparametersmeasurementBasedontheofthoroughinvestigationontherelatedliteraturesathomeandabroad，thisthesisisaimedtoinvestigatet

3、hetheoryandmeasureruealtmethodologyofignitionparametersingasolineengineFirstlybasedontheanalysisoftheprincipleofthecapacitordischargeignitionsysteminthegaslineeng“neandthecharacteristicsofignitionparametersinthegaslineen

4、gine，theauthorproposesthemethodsofignitionparametersmeasurement，includingthespeedofthegaslineengine，ignitionadvanceangle，ignitionvoltage，ignitioncurrentandignitonenergySecondlytheauthoraccomplishedthemeasurementofthespee

5、dofgaslineengineandignitionadvanceangleutilizingthespecialfunctionofthehi咖speedinputunit(HSI)inthemicrocontmUerof80C196KBThentheauthorhasalsoaccomplishedthehi出speeddataacquisitionofignitionvoltageandignitioncurrentbyadop

6、tingthe11ighspeedanalogtodigitalconversiondeviceandthefirstinandfirstoutmemorydevice(FIFO)Furthermore，theauthorhassuccessfullymatchedthespeedofhighspeeddataacquisitionmoduleandthelowspeedcontrolmoduleafteranalysizingofth

7、eirtimingcarefullyFinallytheauthorhastakenintofullaccounttheelectromagneticcompatiblityForthestrongelectroandmagneticinterferencebroughtbythesparkledischargeoftheignitionsysteminthegasolineengine，effectiveanti—interferen

8、cemeasureshavebeentakenbothinhardwareandsoftwaresoastoassurethattheinstrumentCanworknormallyNotonlydoesthemethodsatisfytheneedsoftheengineeringapplications，butalsofeaturesthevirtuesoflowcostandsmallvolumeSoitwillfindawid