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 20 of 50 for “"Powertrains."”.
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Non-linear identification, estimation and control of automotive powertrains
Increasingly tight emission regulations put a pressure on control engineers to come up with improved engine control systems. The task is difficult, as it is desired to minimize complexity, cost and maximize reliability and performance, all at the same time. Fortunately, modern control techniques …
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A framework for evaluating the sustainability of advanced powertrains
… with these vehicles have led to many alternative powertrains being proposed. Much research has been conducted evaluating how the in-use impacts of these compare to incumbent powertrains. This has shown that battery electric vehicles (BEV) have great potential to address many of the concerns, but …
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Design and simulation of high-performance hybrid electric vehicle powertrains
… light-duty hybrid electric vehicle powertrains. The design requirements of each proposed configuration are to meet or exceed a set of performance baselines based on a composite set of particular high-performance conventional vehicles presently available, while demonstrating increased …
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Synchroniser analysis and shift dynamics of powertrains equipped with dual clutch transmissions
… of dual clutch transmission equipped powertrains are conducted in this thesis through the development and application of torsional multi-body models incorporating multiple nonlinearities. Shift control studies are performed using detailed hydraulic model integrated with a 4DOF …
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Electric powertrains : opportunities and challenges in the US light-duty vehicle fleet
… 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 such reductions. The evolution of key enabling technologies was evaluated over …
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Model-Based Control Development for an Advanced Thermal Management System for Automotive Powertrains
Rising fuel prices and tightening vehicle emission regulations have led to a large demand for fuel efficient passenger vehicles. Among several design improvements and technical solutions, advanced Thermal Management Systems (TMS) have been recently developed to more efficiently manage the thermal …
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Developing a HIL-Based Software Platform for Testing Electric and Hybrid Vehicle Powertrains
… the evaluation of electric and hybrid vehicle powertrains under realistic driving conditions. The traction inverter and dc/dc converter are two crucial subsystems of the powertrain and new prototypes require significant validation before implementing into production vehicles. As fundamental …
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An Illustrative Look at Energy Flow through Hybrid Powertrains for Design and Analysis
… efficiency. Since the goal with advanced vehicle powertrains is to increase overall system efficiency and reduce overall energy consumption, it is important to understand how all of the factors involved affect the system as a whole. After completing these studies, this thesis moves on to …
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VTool: A Method for Predicting and Understanding the Energy Flow and Losses in Advanced Vehicle Powertrains
… a reasonable degree of accuracy for a variety of powertrains, calculate J1711 Utility Factor weighted energy consumption for Extended Range Electric Vehicles (EREVs) and determine the Well-to-Wheel impact of a given powertrain or fuel. VTool does all of this while performing all calculations …
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Variability in the emissions savings potential of battery electric vehicles across regions and individuals
… battery electric, plug-in hybrid, and fuel cell powertrains have the potential to achieve significant emission reductions. Yet questions remain about the emissions and costs of these alternative technologies. This thesis evaluates the emissions reduction potential of vehicles with electrified …
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Vehicle powertrain model to predict energy consumption for ecorouting purposes
… model is scalable such that different vehicle powertrains may be approximated. Using an 'ecorouting' process, the most ideal route is selected by weighting relative total energy consumption and travel time. Only limited powertrain characteristics are publicly available. As the future goal of …
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Building a Scalable Electrification Infrastructure in Logistics
… internal combustion engines (ICE) to electric powertrains in truck fleets. This work develops analytics-based solutions to support and assess the electrification of long-haul logistics operations, by applying the methods to PepsiCo’s operations in Texas.
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Optimum hybrid vehicle configurations for heavy duty applications
… led to interest in the use of hybrid electric powertrains and the introduction of several production vehicles in both heavy-duty and light-duty applications. Hybrid electric vehicles (HEVs) use a combination of electric motor(s) and another power source such as an internal combustion engine …
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Cars on a diet : the material and energy impacts of passenger vehicle weight reduction in the U.S.
… progressively use advanced, more fuel-efficient powertrains, such as hybrid-electric drives. We can reduce weight by substituting some of the iron and steel used in vehicles with lighter-weight high-strength steel or aluminum, redesigning the vehicle, and/or downsizing the vehicle. Using these …
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Model-based powertrain design and control system development for the ideal all-wheel drive electric vehicle
… and lower energy consumption than mentioned powertrains; the mode control can reduce 3% of battery charge depleting during the highway driving test. It also provides compelling evidences that the functionalities achieved by complicated and costly mechanical devices can be carried out by …
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Comparative energy, economic, and environmental assessment of conventional and alternative fuel vehicles across Canadian provinces
This thesis evaluates passenger car powertrains and fuels across Canadian provinces in terms of environmental impact, economic cost, and energy efficiency. A life cycle assessment using TRACI methods assessed six environmental categories. Results show that FCEVs perform best in Manitoba (0.065 kg …
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Design and energy analysis of a hybrid electric natural gas vehicle
… were determined for the specific hybrid powertrains. A comparison with established SAE drive cycles was effected to illustrate the feasibility of the proposed simulation processes. (Abstract shortened by UMI.)
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