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.
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Showing 1 to 19 of 19 for “"Hybrid Electric Vehicle (HEV)"”.
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Anticipating system-level electromagnetic interference using numerical methods and measurement techniques
… of electronic equipment introduced into the electric vehicle (EV) or hybrid electric vehicle (HEV). The concurrent module-level and vehicle-level EMC design flow at early development stages is becoming important and inevitable for solving the accompanying increase of electromagnetic …
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Thermal Modeling of Lithium-Ion Energy Storage Systems for Hybrid Electric Vehicles Using Computational Fluid Dynamics with Conjugate Heat Transfer
<p>The success and performance of a Hybrid Electric Vehicle (HEV) relies largely on its Energy Storage System (ESS). High temperatures and thermal variations can significantly affect a battery's performance and lifecycle. An effective thermal management system is vital to the health and safe …
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Development and validation of a modular hybrid electric vehicle simulation model
… accurate simulation programs are crucial. Most hybrid electric vehicle hybrid electric vehicle (HEV) simulation programs are written for very specific component configurations and only allow changes in component sizes. These programs prove helpful only if one designs a component configuration …
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An analysis of hybrid-electric vehicles as the car of the future
… will examine the validity of the benefits of the Hybrid-Electric Vehicle (HEV). With the recent focus on energy initiatives, reflected through Bush's state of the union, as well as President Hockfield's MIT Energy Initiative, we are heavily investing resources to tackle the energy consumption …
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Technological assessment and evaluation of high power batteries and their commercial values
… Metal Hydride (NiMH) battery technology in the Hybrid Electric Vehicle (HEV) energy storage market as it has higher specific energy and energy. However, in order to improve Li-ion battery technology to fulfill the' HEV energy storage requirements, a very high specific power characteristic is …
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Hybrid Electric Vehicle Control Strategy Based on Power Loss Calculations
… strategy for a Split Parallel Architecture (SPA) Hybrid Electric Vehicle (HEV) is accomplished through calculating powertrain component losses. The results of these calculations define how the vehicle can decrease fuel consumption while maintaining low vehicle emissions. For a HEV, simply …
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Electric-drive vehicle emulation using advanced test bench
<p>"Vehicle electrification is considered to be the most promising approach toward addressing the concerns on climate change, sustainability, and rapid depletion of fossil fuel resources. As a result electric-drive vehicle (EDV) technology is becoming the subject of many research studies, from …
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Variable Bus Voltage Modeling for Series Hybrid Electric Vehicle Simulation
… One of these future technologies is the hybrid electric vehicle (HEV), typically featuring both an internal combustion engine and an electric motor, with the goal of producing fewer emissions while obtaining superior fuel economy. While vehicles such as the Virginia Tech designed and …
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Electrochemical Model Based Fault Diagnosis of Lithium Ion Battery
… battery current input profile extracted from the hybrid pulse power characterization (HPPC) cycle simulation of a hybrid electric vehicle (HEV). A partial differential algebraic equation (PDAE) observer was utilized to obtain the estimated voltage, which was used to generate the residuals. …
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The projected pathways and environmental impact of China's electrified passenger vehicles
… China's rapidly rising number of light-duty vehicles (LDVs) on the road have resulted in serious problems such as increasing CO2 emissions, energy insecurity, and air pollution. The question I examine here is how electrified vehicles (EVs) can help reduce China's energy demand and greenhouse …
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A Data Driven Real Time Control Strategy for Power Management of Plug-in Hybrid Electric Vehicles
… two decades desperate need for energy-efficient vehicles which has less emission have led to a great attention to and development of electrified vehicles like pure electric, Hybrid Electric Vehicle (HEV) and Plug-in Hybrid Electric Vehicles (PHEVs). Resultantly, a great amount of research efforts …
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Potential of electric propulsion systems to reduce petroleum use and greenhouse gas emissions in the U.S. light-duty vehicle fleet
… Within transportation sector, light duty vehicles (LDVs) - cars, light trucks and SUVs - currently emit the most GHGs. Hybrid technology emerged as a promising option to address several of these challenges. A modern hybrid electric vehicle (HEV) offers significantly better fuel economy …
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Modeling the impact of battery degradation within lifecycle cost based design optimization of heavy-duty hybrid electric vehicles
<p>The optimal design of hybrid electric vehicle (HEV) powertrains from a systems perspective is critical to realize the maximum benefits for a given application. This is particularly true in the heavy-duty vehicle space where the major challenges are: (i) greater emphasis on economic viability, …
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Essays on the dynamics of alternative fuel vehicle adoption : insights from the market for hybrid-electric vehicles in the United States
… previous efforts to introduce alternative fuel vehicles (AFVs) fueled by hydrogen, biofuels and electricity have failed, and significant barriers to a rapid transition to AFVs remain. One technology that has achieved considerable success in the US is the gasoline hybrid-electric vehicle (HEV), …
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The UW EcoCAR2 Vehicle Development Process and Vehicle Level Torque Control Strategy Documentation
… sacrificing the consumer acceptability of the vehicle (Argonne National Labratories, 2014). It is the first competition of its kind designed to create automotive technology that can penetrate the mass market and have significant and lasting environmental impact reductions. The technical goals …
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Exergy and exergoeconomic analyses and optimization of thermal management systems in electric and hybrid electric vehicles
… in terms of energy density, cost and size, the electric (EV) and hybrid electric vehicle (HEV) technologies have shown that they can compete with conventional vehicles in many areas. Although EVs and HEVs offer potential solutions for many key issues related to conventional vehicles, they still …
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A hardware-anywhere-in-the-loop simulator for dynamic real-time analysis of electric propulsion systems
This work introduces a low-level real-time vehicle simulator with hardware-anywhere-in-the-loop (HAIL) capability. Vehicle dynamics are simulated on a high-performance workstation running a real-time operating system. The vehicle’s battery pack is both modeled in simulation and interfaced …
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Development of eco-driving control system for connected and automated hybrid electric vehicles
Hybrid electric vehicles (HEVs) were designed as a potential solution to the ever-increasing global problems of the energy crisis and global warming through flexibly utilizing both fuel and electrical energy. Besides, the emerging technologies of connected and automated vehicles (CAVs) have …
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An approach to controlling an active parallel interface between a transient energy source and a dc voltage bus
Made available in DSpace on 2011-01-14T22:45:16Z (GMT). No. of bitstreams: 3 Niemoeller_Benjamin.pdf: 5415802 bytes, checksum: b9fbded7b4e7cfbd9c253c64c9a6b1e2 (MD5) license.txt: 4069 bytes, checksum: 595b596e4eb73314f3447fa9e32a5425 (MD5) BAN Whole thesis rev16.doc: 16991232 bytes, checksum: …