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dc.contributor.authorCross, Patrick Wilsonen_US
dc.date.accessioned2008-09-17T19:52:03Z
dc.date.available2008-09-17T19:52:03Z
dc.date.issued2008-05-19en_US
dc.identifier.urihttp://hdl.handle.net/1853/24785
dc.description.abstractA series hybrid electric vehicle is a vehicle that is powered by both an engine and a battery pack. An electric motor provides all of the mechanical motive power to the transmission. Engine power is decoupled from the transmission by converting engine power into electricity which powers the electric motor. The mechanical decoupling of the engine from the transmission allows the engine to be run at any operating point (including off) during vehicle operation while the battery back supplies or consumes the remaining power. Therefore, the engine can be operated at its most efficient operating point or in a high-efficiency operating region. The first objective of this research is to develop a dynamic model of a series hybrid diesel-electric powertrain for implementation in Simulink. The vehicle of interest is a John Deere M-Gator utility vehicle. This model serves primarily to test energy management strategies, but it can also be used for component sizing given known load profiles for a vehicle. The second objective of this research is to develop and implement multiple energy management strategies of varying complexity from simple thermostat control to an optimal control law derived using dynamic programming. These energy management strategies are then tested and compared over the criteria of overall fuel efficiency, power availability, battery life, and complexity of implementation. Complexity of implementation is a critical metric for control designers and project managers. The results show that simple point-based control logic can improve upon thermostat control if engine efficiency maps are known. All control method results depend on the load profile being used for a specific application.en_US
dc.publisherGeorgia Institute of Technologyen_US
dc.subjectEnergy management strategyen_US
dc.subjectHybrid vehicleen_US
dc.subjectDynamic programmingen_US
dc.subjectModelingen_US
dc.subject.lcshHybrid electric vehicles
dc.subject.lcshDynamic programming
dc.subject.lcshSystems engineering
dc.subject.lcshEnergy consumption
dc.titleSystem Modeling and Energy Management Strategy Development for Series Hybrid Vehiclesen_US
dc.typeThesisen_US
dc.description.degreeM.S.en_US
dc.contributor.departmentMechanical Engineeringen_US
dc.description.advisorCommittee Chair: Dr. Nader Sadegh; Committee Member: Dr. Wayne Book; Committee Member: Dr. William Singhoseen_US


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