基于ccp协议的电控柴油机数据采集系统设计

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1、万方数据AB汀RACTDesignofElectronicallyControlledDieselDataAcquisitionSystemBasedonCCPProtocolByYuBinb·inSupervisedbyPmfXUFeiyunSoutheastUniversityElectroniccon仃Dlofdieselisregardedasoneofthemostimportantmethodtored眦etheexhaustemissions，improveenginepowerandeconomyperformance．Thecontro

2、lstrategyofECUwhichistheCOreofelectronicallycontrolieddiesel,directlyaffectstheengineperformance．WiththedevelopmentofECUdesignpatterns，inordertoprovideexperimentaldataforcommlstrategyoptimization,itisimportanttorecordinternalparametersofECUinitsdevelopmentprocess．Soinordertorecor

3、dtheECUinternalparametersconvenient堍adataacquisitionsystemofelectronicallycontrolleddieselbasedonCCPprotocolisestablished．Afterthesurveyofenginedataacquisitionsystemathomeandabroad，accordingtothesystemgeneralrequirementsandtheoverseasauthoritativeASAPcriterion,thesystemisrminlyco

4、mposedofdataacquisitionterminalandPCsoRware．CCPprotocoloftheASAP1standardisusedasthecommunicationprotocolofECUanddataacquisitionterminal．Atthesametime，TCP／IPprotocolisselectedtoco锄ectdataacquisitionterminalandPCsoRware，whichisusedtoreceiveconfigurationfileandsendcollectingdataind

5、ataacquisitionterminal．TheCCPcommandofacquisitionpararnetersisconfiguredonPCsottwarebasedonASAP2standarddatadescriptionfile，anddataofCCPacquisitionconvertedtophysicalvaluesdisplayandsavebasedonASAP3standard．Accordingtothedemandofthesystem,terminalhardwarecircuitisdesigned．Andamul

6、ti-threadedCANdriverisdesignedbasedonWindowsCEoperatingsystemofdataacquisitionterminal,whichcanrealizedatareliableandrapidcommunication．SoftwareinthePCisdevebpedby呦ⅥEW，modularprogrammingisadoptedtodevelopthesoRwarefunctionssuchasA2Lfileinterpretationmodule，systemparameterconfigur

7、ationmodub，CCPdatadisplayandsaVemodule．Thesystemhasanicerman-machineconversationkSerface，fiLcilitatingtheconlrolofmanipulator．Finally,inordertoverifythesystemfunction,thedataacquisitionsystemistestedonenginesimulator．Theresultsoftestindicatethesystemcanmeetsthesystemrequirements．

8、Atthesametime，EGReontrolstrategyandimpro