车用微控制器的模糊逻辑与bdm部件分析与设计

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1、AbstractThewideapplicationofmicrocontrollerinautomotiveelectronicfieldmakesmodernautomotivetobemoreintelligentandnetworked．Researchesonmicrocontrolleranditsapplicationinautomotivestartedinthelate1970sinforeigncountries．Nowadaysmatureautomotivemicrocontrollerproductsandsolutionsha

2、vebeenformedabroad．However，thistechnologystartsquitelatelyinourcountryandthedevelopmentisprettyslow．Thereisrarelymatureproductsforwhichweowntheproprietaryintellectualpropertyrightsourselves．Sothetechnicalcraftworkersinourcountryareconfrontingachallengetoresearchanddevelopautomoti

3、vemicrocontrollerswithproprietaryintellectualpropertyrightsourselves．Withthecomplexityandinterferencediverisityoftheapplicationenvironmentwhereembeddedautomotiveelectroniccontrolsystemworks，fuzzylogicwithgoodadaptabilityhasbeenintroducedonthevehiclemicrocontrollerinstructions．Fre

4、escaleHCS12isthefirstmicrocontrollerinwhichfuzzylogicinstructionsarefullvsupported．Basedonanalysisofcharacteristicsandapplicationscenariosofautomotivemicrocontroller，theobjectiveofresearchistodesigntheENSL一16．aFreescaleHCS12instructionsetcompatible16一bitautomotivemicrocontr011er．

5、ThisthesisismainlyresponsiblefortheresearchanddesignofthefuzzylogicandBDMunitsoftheautomotivemicrocontroller，andtheanalysisofsystem’Ssecuritv．ThemainworkofthisthesisiSasfollows：Throughthestudyofcharacteristicsandtheautomotivemicrocontr011erinstructionset，thestructureofdatapathisp

6、roposed．Onthebasisof“Top—Down’’hierarchicaldesignmethod，thesystemmodulesaredividedandtheinterfacesignalsaredefined．ThenthesystemsecurityiSanalyzed．Basedonanalysisoffuzzylogicinstructionset，thethesisproposes16一bitunifieddatapathandstructureoftwofastcomputingunit．TheproposeddataDat

7、handstructureoffastcomputingunit，canexecute8bit，16bit，unsignedandsignedoperationsoffuzzylogicinstructionsusingonecomputingmodule，whichavoidstherepetitionofcomputingmoduleanddecreasestheareaoffuzzylogicunit．Thestructureoftwofastcomputingunitcanrealizetheparallelcomputing，SOastoimp

8、rovethefuzzylogicinstructionexecutionspe