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dc.contributor.advisorManring, Noaheng
dc.contributor.authorVermillion, Sean Douglaseng
dc.date.issued2011eng
dc.date.submitted2011 Falleng
dc.descriptionTitle from PDF of title page (University of Missouri--Columbia, viewed on June 8, 2012).eng
dc.descriptionThe entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file.eng
dc.descriptionThesis advisor: Dr. Noah Manringeng
dc.descriptionIncludes bibliographical references.eng
dc.descriptionM. S. University of Missouri--Columbia 2011.eng
dc.descriptionDissertations, Academic -- University of Missouri--Columbia -- Mechanical and aerospace engineering.eng
dc.description"December 2011"eng
dc.description.abstractIncreasing petroleum prices and environmental concerns have caused a demand for more fuel efficient vehicles. Hybrid vehicles provide a solution to this demand, and hydraulic hybrid vehicles are shown to have a cheaper cost of ownership compared to electric hybrid vehicles. A hybrid drivetrain with a hydraulic continuously variable transmission (CVT) is modeled to include efficiency information of the engine and hydraulic components. Since the expressions comprising the model can be set as functions of a control input, which is related to the swashplate angle of the hydraulic motor in the CVT, an optimization algorithm can determine a control input that maximizes the overall vehicle efficiency allowing the vehicle to increase its fuel economy. Simulations are conducted using two driving schedules: one to represent city driving and the other to represent highway driving. Based on the results of these simulations, the hybrid vehicle produces a 1.28% increase in fuel economy over a similar conventional vehicle in city driving and a 22.62% increase in fuel economy for highway driving.eng
dc.format.extentxiv, 79 pageseng
dc.identifier.urihttp://hdl.handle.net/10355/14578eng
dc.languageEnglisheng
dc.publisherUniversity of Missouri--Columbiaeng
dc.relation.ispartof2011 Freely available theses (MU)eng
dc.relation.ispartofcommunityUniversity of Missouri-Columbia. Graduate School. Theses and Dissertations. Theses. 2011 Theseseng
dc.subjecthybrid vehicleeng
dc.subjectfuel efficiencyeng
dc.subjectcontinuously variable transmissioneng
dc.subjectoptimization algorithmeng
dc.titleModeling a hydraulic hybrid drivetrain: efficiency considerationseng
dc.typeThesiseng
thesis.degree.disciplineMechanical and aerospace engineering (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelMasterseng
thesis.degree.nameM.S.eng


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