Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 48 for “"Hybrid Vehicles"”.
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A Novel Reconfigurable Induction Machine Drive for Hybrid Vehicles
… warming and depleting oil reserves, full and hybrid electric vehicles (EVs) are gaining significant attention from commercial bodies as well as government policymakers. Considering the high cost and range anxiety of full EVs, hybrid EVs are expected to be the immediate solution. The electric …
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Conceptual development and analysis of sustainable powering options for hybrid vehicles
… six novel integrated systems for powering vehicles are conceptually developed and introduced.All the system are thermodynamically modeled by applying energetic and exergetic approaches via the Engineering Equation Solver software (EES). The obtained results are validated by using energy and …
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Health conscious energy management strategies for fuel cell/battery hybrid vehicles
… to provide a sustainable future. Fuel cell vehicles can reduce emissions for the transportation sector as their only by-product is water. One major barrier towards commercialization is the cost of fuel cell stacks. Extending the operating life of fuel cells can lower their overall cost. Thus …
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Optimizing hybrid vehicles : battery pack design, energy management, and collaborative learning
Hybrid vehicles are designed to operate efficiently using data from within the bounds of that single vehicle. With limited access to outside information, hybrid control systems can react to external stimuli but cannot prepare ahead of time, which limits the overall efficiency. This thesis looks …
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High efficiency and high performance power converters and motor drives for hybrid vehicles and electric ship propulsion
… and motor drives for emerging application in hybrid (electric) vehicle and electric ship propulsion. It includes eight papers organized in three parts"--Abstract, page iv.
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Transitioning to a Greener Fleet: A Cost-Benefit Analysis of a Vehicle Fleet Program at the Texas General Land Office in Austin, Texas
… the study will provide background information on hybrid vehicles and alternative fuels their effect on the environment and the benefit these technologies can have on state and local fleets. Finally, the study will apply the technique of cost-benefit analysis of incorporating hybrid vehicles into …
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Hydrogen : what fuel cell vehicles and advanced nuclear reactors have in common
… what is the place of hydrogen fuel cell vehicles among the new, more-efficient advanced vehicle technologies. Our analysis indicates that fuel cell vehicles using hydrogen from fossils fuels offer no significant energy efficiency advantage over hybrid vehicles in urban driving cycle. …
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Observability and observer design for switched linear systems
<p>Hybrid vehicles, HVAC systems in new/old buildings, power networks, and the like require safe, robust control that includes switching the mode of operation to meet environmental and performance objectives. Such switched systems consist of a set of continuous-time dynamical behaviors whose …
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Simulação digital de desempenho de veículos híbridos bateria / motor de combustão em configuração série
… a simulation of the performance of electric and hybrid vehicles. The hybrid vehicle considered is a battery/internal combustion engine series configuration. The traction system is modeled through a set of equations which take into account various parameters of each in dividual component. Losses …
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Optimal energy use in mobile applications with storage
… fuel consumption and greenhouse gas emissions, hybrid mobile power systems are seeing increased use. A hybrid mobile power system is any vehicle that includes a power source and a means of storing that power. These vehicles offer an opportunity for improved efficiency by partially decoupling …
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Execution of a Hybrid Vehicle Controls Development Effort Utilizing Model-Based Design, Hardware-in-the-loop Testing, Agile Scrum Methods and Requirements Engineering
<p>Modern hybrid vehicles require sophisticated supervisory control systems in order to realize competitive efficiency gains. Processes such as model-based design, HIL simulation and Agile Scrum methods can allow for quicker and less costly development of a complex product. The design of a …
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Optimization of blended battery packs
… the traditional battery pack design process for hybrid and electric vehicles, and presents a dynamic programming (DP) based algorithm that eases the process of cell selection and pack design, especially for blended battery packs (those containing two or more different energy sources). The …
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Power draw scheduling of electric and plug-in hybrid electric vehicles with unidirectional vehicle-to-grid benefits
… power scheduling aspects of electric and plug-in hybrid vehicles. The use of electric vehicles (EVs) as demand response resources and the unidirectional vehicle-to-grid benefits obtainable are investigated. Power draw could be scheduled with the EV’s charger being in control of charging or via …
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Diffusion of new technology vehicles
… evaluation for the competency of New Technology Vehicles, such as Fuel Cell vehicles, Hybrid vehicles and Current vehicles with incrementally improved combustion engines are examined as well as fuel systems that support those power train alternatives. The competency for each alternative is …
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Traction and Launch Control for a Rear-Wheel-Drive Parallel-Series Plug-In Hybrid Electric Vehicle
<p>Hybrid vehicles are becoming the future of automobiles leading into the all-electric generation of vehicles. Electric vehicles come with a great increase in torque at lower RPM resulting in the issue of transferring this torque to the ground effectively. In this thesis, a method is presented for …
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From well to wheel: a comprehensive comparison of traditional and alternative vehicle-fuel systems
… the advantages of the modern alternative fueled vehicles over traditional vehicles on a well to wheel basis. Alternative fueled vehicles are often lauded for their advantages during vehicle operation. This project evaluates vehicles according to their relative values on a broader scale. This …
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Well-to-wheel greenhouse gas emissions and energy use analysis of hypothetical fleet of electrified vehicles in Canada and the U.S.
The shift to strong hybrid and electrified vehicle architectures engenders controversy and brings about many unanswered questions. It is unclear whether developed markets will have the infrastructure in place to support and successfully implement them. To date, limited effort has been made to …
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Electric powertrains : opportunities and challenges in the US light-duty vehicle fleet
… and greenhouse gas (GHG) emissions of in-use vehicles. This study quantifies the potential of electric and hybrid-electric powertrains, such as gasoline hybrid-electric vehicles (HEVs), plug-in hybrid vehicles (PHEVs), fuel-cell vehicles (FCVs), and battery-electric vehicles (BEVs), to offer …
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Control-Oriented Thermal Model for a Hybrid Vehicle Battery
… manufacturers are moving towards elec- tric and hybrid vehicles. Most hybrid vehicles use Lithium-ion batteries as energy storage systems. Lithium-ion batteries have a narrow range of temperature within which they can be operated efficiently. Operation of Lithium-ion batteries outside this range …
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Application of Floating Pedal Regenerative Braking for a Rear-Wheel-Drive Parallel-Series Plug-In Hybrid Electric Vehicle with an Automatic Transmission
… further away from our reliance on fossil fuels, hybrid vehicles are becoming ever more popular. Braking is a system on both hybrid and normal vehicles that involves a significant amount of power and energy. A hybrid can recapture some of that energy using regenerative braking. In this thesis, a …
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