Electrical& Computer EngineeringIn the FutureAfter GraduationMitsuhideSatoThissystemhasnocrankmechanism.Sincethecombustionenergyisconverteddirectlyintoelectricpower,themechanicallosscanbereduced.Serieshybridvehiclesusingfree-pistonenginecoupledwithlineargeneratorareexpectedforhigh-efficiencyenergyconversionsystems.Suchenginesdonothaveacrankmechanism,whichgreatlyreducesthefrictionloss.Inaddition,thepistonactioncanbecontrolledfreelybythegenerationbrakingthrustbyusinganinvertercontrol.OurLaboratoryisinterestedingeneratordesignandinverterpowergenerationcontrolforthepurposeofimprovingpowergenerationefficiency.Wearealsostudyingtheeffectofpistonmovementontheefficiencyofpowergenerationexperimentsusingsmallengines.Inrecentyears,electrificationhasgainedpopularityworldwidefortherealizationofasustainableautomotiveindustry.Thissystemwillbefundamentaltechnologiesforthefutureofautomotivesociety.Youwillworkasengineersandtechniciansinelectricalorprecisionmeasurementcompanies.AssistantprofessorPh.D.:ShinshuUniversityResearchfield:Lineargenerator/motorFree-piston Engine Linear Power Generation SystemBatteryFree-pistonInverterSpringCoilChargingSNNSNSSNSNNSNSSNSNSNSNNSSNSNSNNSLineargeneratorValveSparkplugFuelinjectorCombustionchamberSpringchamberPermanentmagnetStudentsdefinethespecificationanddesignacircuit.Tofabricateachip,acircuitdesignerdrawsalayoutwithnm-orderscalebyCADsoftware.VLSIchipandmeasurementboard.StudentsdesignandverifyaVLSIchiptoworkasrequired.KohJohguchiProgressesofelectronicsandinformationtechnologieshaveproducednewindustriesandservicesliketheInternet,amobilephone,etc.Espcially,thescalingtechnologyofVLSIrealizesawidevarietyoffunctionswithlowcost.Bythecommoditization,thematuredVLSItechnologyhasbeenusedinmanyareas.But,Japaneseelectronicsindustryisstrugglingwithcostcompetitiveness.Toovercomethis,wehavetodifferentiateproductsfromothersandcustomizeourVLSIchipwithacircuitdesigntechnology.Ourlaboratorywilldevelopanewcomputerarchitectureandsystemsbyco-designinghardware,softwareandapplication.“TrillionSensorsUniverse”iscomingupsoon.Trillionsensorscollectandcomputemanyinformationfromtherealworld.Then,VLSIcircuitdesignbecomesakeytechnologyformedicine,agriculture,husbandry,logistics,architectureandcivilengineering.Todistinguishproductsfromthecompetitorsandproduceuniqueproducts,VLSIinnovationisessential.Inourlaboratory,studentscanstudynotonlydigital/analogcircuitdesignbutessentialtechnologiesfromsensordevicestosoftware.Byresearchinginconsiderationoftheoutput,wewillplayavitalroleinthedevelopmentofInformationCommunicationTechnology(ICT).Asagraduationwork,studentsinJohguchiLab.proposeacircuitandarchitectureandusetheirinventivenesstotacklearesearchproject.Studentscanstudyawideareaincludingdevicephysics,measurementtechniqueandsoftwaredevelopment,etc.Also,successfulexperiencesofachievingsomethingbecomeusefulforthefuturejob.Associate ProfessorHe received the Ph.Ddegree from Hiroshima University in 2007.His research area is low power VLSI circuit design and computer architecture. VLSI technologies for the Innovation of New ApplicationsAfter GraduationIn the FutureElectrical& Computer Engineering24
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