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 14 of 14 for “"vehicle efficiency"”.
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Development and validation of a modular hybrid electric vehicle simulation model
… 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 similar to the one …
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Design of a FSAE braking system
… competition. The braking system for the MY18 vehicle developed by MIT Motorsports must enable the driver to consistently and reliably decelerate the vehicle at the maximum rate allowed by the traction limit of the tires. Crucial engineering data needed for a well-informed design, such as the …
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Experimental Investigation of Heat Transfer to Tightly Packed Cylinder Arrays
… electric aircraft and other electric driven vehicles, the thermal demand on batteries is increasing. Unique to the aviation sector is the combined need of high battery thermal loads and a light-weight thermal management system. A proposed configuration is an array of batteries directly cooled …
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Modeling design changes in vehicle assembly systems : platform transition strategies and manufacturing flexibility
… their cars. Due to these increasingly stringent vehicle efficiency standards, considerable effort has been expended to reduce vehicle fuel consumption. Since the mass of the vehicle dominates all of these efforts, it can be argued that future emission requirements will be impossible to achieve …
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Enhancing the Automotive E/E Architecture Utilising Container-Based Electronic Control Units
… been realised in terms of passenger safety and vehicle efficiency, there are several issues currently facing the automotive industry as a result of the rising number of ECUs. These include greater demands placed on power, increased vehicle weight, complexities of hardware and software, …
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Decentralized graph-based multi-agent reinforcement learning for traffic signal optimization
… and fairness-aware rewards jointly balance vehicle efficiency and pedestrian accessibility. The framework is validated using a high-fidelity digital twin–based simulator with real-world traffic data and further demonstrated through preliminary on-street field testing on the MLK Smart …
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Path Selection to Minimize Energy Consumption of an Electric Vehicle using Synthetic Speed Profiles and Predictive Terminal Energy
Manufacturers of passenger vehicles are experiencing increased pressure from consumers and legislators due to the impact of transportation on the environment. Automotive manufacturers are responding by designing more sustainable forms of transportation through a variety of efforts, including …
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Performance targets for electric vehicle batteries
Light-duty vehicle transportation accounted for 17.2% of US greenhouse gas emissions in 2012 [95]. An important strategy for reducing CO₂ emissions emitted by light-duty vehicles is to reduce per-mile CO₂ emissions. While one approach is to improve vehicle efficiency, greater reductions in …
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Passenger transport in China under climate constraints : general equilibrium analysis, uncertainty, and policy
Vehicle sales and road travel volume in China have grown rapidly in recent years, and with them energy demand, greenhouse gas emissions and local air pollution. Aviation and rail travel have also grown, while ceding a large share to private vehicles. What path will household transport demand in …
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Exploring the use of a higher octane gasoline for the U.S. light-duty vehicle fleet
… ratios and boost levels. In turn, engine and vehicle efficiencies are improved thus reducing fuel consumption and greenhouse gas (GHG) emissions for the light-duty vehicle (LDV) fleet. The main objective of this thesis is to quantify the reduction in fuel consumption and GHG emissions that can …
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VTool: A Method for Predicting and Understanding the Energy Flow and Losses in Advanced Vehicle Powertrains
… U.S. transportation sector, light-duty passenger vehicles account for about 58% of energy use. Therefore incremental improvements in light-duty vehicle efficiency and energy use will significantly impact the overall landscape of energy use in America. A crucial step to designing and building more …
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Willans Line Modeling for Powertrain Analysis and Energy Consumption of Electric Vehicles
With electric vehicles becoming increasingly prevalent in the automotive market consumers are becoming more conscientious of total driving range. In light of this trend, reliable and accurate modeling methods are necessary to aid the development of more energy efficient vehicles with greater …
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The role of technical improvements in decarbonising passenger transport
Passenger vehicles are a leading driver of anthropogenic greenhouse gas (GHG) emissions. The majority of efforts to reduce vehicle GHG emissions focus on technical improvements, due to difficulties in reducing travel demand and shifting to alternative modes of travel. However, the rate at which …
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Hybrid Electric Vehicle Control Strategy Based on Power Loss Calculations
… 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 operating the vehicle's …