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ID:31951035
大小:10.32 MB
页数:98页
时间:2019-01-29
《车用微控制器的模糊逻辑与bdm部件-.研究与设计》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、AbstractThewideapplicationofmicrocontrollerinautomotiveelectronicfieldmakesmodernautomotivetobemoreintelligentandnetworked.Researchesonmicrocontrolleranditsapplicationinautomotivestartedinthelate1970sinforeigncountries.Nowadaysmatureautomotivemicrocontrollerproductsandsolutio
2、nshavebeenformedabroad.However,thistechnologystartsquitelatelyinourcountryandthedevelopmentisprettyslow.Thereisrarelymatureproductsforwhichweowntheproprietaryintellectualpropertyrightsourselves.Sothetechnicalcraftworkersinourcountryareconfrontingachallengetoresearchanddevelop
3、automotivemicrocontrollerswithproprietaryintellectualpropertyrightsourselves.Withthecomplexityandinterferencediverisityoftheapplicationenvironmentwhereembeddedautomotiveelectroniccontrolsystemworks,fuzzylogicwithgoodadaptabilityhasbeenintroducedonthevehiclemicrocontrollerinst
4、ructions.FreescaleHCS12isthefirstmicrocontrollerinwhichfuzzylogicinstructionsarefullvsupported.Basedonanalysisofcharacteristicsandapplicationscenariosofautomotivemicrocontroller,theobjectiveofresearchistodesigntheENSL一16.aFreescaleHCS12instructionsetcompatible16一bitautomotive
5、microcontr011er.ThisthesisismainlyresponsiblefortheresearchanddesignofthefuzzylogicandBDMunitsoftheautomotivemicrocontroller,andtheanalysisofsystem’Ssecuritv.ThemainworkofthisthesisiSasfollows:Throughthestudyofcharacteristicsandtheautomotivemicrocontr011erinstructionset,thest
6、ructureofdatapathisproposed.Onthebasisof“Top—Down’’hierarchicaldesignmethod,thesystemmodulesaredividedandtheinterfacesignalsaredefined.ThenthesystemsecurityiSanalyzed.Basedonanalysisoffuzzylogicinstructionset,thethesisproposes16一bitunifieddatapathandstructureoftwofastcomputin
7、gunit.TheproposeddataDathandstructureoffastcomputingunit,canexecute8bit,16bit,unsignedandsignedoperationsoffuzzylogicinstructionsusingonecomputingmodule,whichavoidstherepetitionofcomputingmoduleanddecreasestheareaoffuzzylogicunit.Thestructureoftwofastcomputingunitcanrealizeth
8、eparallelcomputing,SOastoimprovethefuzzylogicinstructionexecutionspe
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