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 29 for “"Vehicle Testing"”.
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Space Vehicle Testing
… component of building and delivering space vehicles with testing as the preferred method. This Master’s Project presents the space vehicle test process from planning through test design and execution. It starts with an overview of the requirements, validation, and verification. The four …
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Predictive control for a throttle regulator in vehicle testing
… control is used in the regulation of a vehicles' speed in an environmental test cell with a wind tunnel. The vehicle speed is regulated through the throttle while the vehicle torque is controlled with a dynamometer. The predicted throttle position for the requested speed is based on …
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Design of a Micro Wireless Instrumented Payload for Unmanned Vehicle Testing
The testing of unmanned vehicles presents a need for an independent device capable of accurately collecting position and orientation data. While commercial-off-the-shelf components could be pieced together to sense and record this information, this is an expensive, large, and heavy solution, not …
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Design and Evaluation of a Mobile Instrumentation Platform for Unmanned Vehicle Testing
Unmanned vehicle systems are becoming more important in the future of the military and in commercial applications. These systems are used to prevent humans from entering dangerous situations or to automate dull tasks. In order to facilitate rapid development of these systems, testing procedures and …
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A Cyclist Detection and Tracking System for Heavy Goods Vehicles
… Detection and Tracking System for Heavy Goods Vehicles Author: Yan KE Heavy Goods Vehicles (HGVs) contribute to a large portion of collisions with cyclists, and a disproportionate number of these are caused by construction vehicles. Among all these collisions, the sides-of-HGV impacts make up …
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Variable Bus Voltage Modeling for Series Hybrid Electric Vehicle Simulation
… 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 built HEV Lumina …
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Design of a power limiter for an FSAE electric racecar
… to ensure that the power consumption of the vehicle is reliably under the limit. Since weight and space come at a premium when it comes to an electric racecar, the power limiting approaches were implemented through C code in the car's Vehicle Control Unit. The power limiter makes use of a …
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The Design of an Autonomous Vehicle Research Platform
… society. However, through years of research, testing, and dedication they are becoming a modern day reality. To further expand research and testing capabilities in the field of autonomous vehicles, an Autonomous Vehicle Research Platform (AVRP) can be developed. The purpose of an AVRP is to …
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An Approach to Automotive Electrification and Testing
… Chevrolet Malibu into a plug-in hybrid electric vehicle. This endeavor was made possible by the EcoCAR 2 competition sponsored by the Department of Energy, General Motors, and Argonne National Laboratory. The Powertrain was changed from a conventional internal combustion engine with a start/stop …
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Modeling, Control, and Hardware Development of a Thrust-Vector Coaxial UAV
… a unique thrust vector coaxial unmanned aerial vehicle (UAV) configuration and presents a comprehensive investigation encompassing dynamics modeling, hardware design, and controller development. Using the Newton-Euler method, a dynamic model for the UAV is derived to gain in-depth insights into …
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Development of a Parallel Hybrid Energy Management Strategy with Consideration of Drive Quality and State of Charge Dynamics
… engine loading and one pedal strategies. Vehicle drive quality with the hybrid control strategy is analyzed, with acceleration and jerk managed through axle torque rate limits and filters. The simulated control strategy for the hybrid vehicle has an energy consumption reduction of 20% for …
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Development and Testing of a Hybrid Vehicle Energy Management Strategy
… the drive quality targets of a conventional vehicle. A comprehensive model of the hybrid powertrain and vehicle physics is constructed to aid in the development of the control strategy. To improve fuel efficiency, a Willans line model is developed for the conventional powertrain and used to …
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Automated Scenario Generation Using Halton Sequences for the Verification of Autonomous Vehicle Behavior in Simulation
<p>As autonomous vehicles continue to develop, verifying their safety remains a large hurdle to mass adoption. One component of this is testing, however it has been shown that it is impractical to statistically prove an autonomous vehicle’s safety using real-world testing alone. Therefore, …
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DEVELOPMENT OF A HYBRID ELECTRIC VEHICLE FOR EFFECTIVE TRAVERSAL OF CONNECTED CORRIDORS
… traversal of a connected corridor, and the vehicle development work done in Year 4 of the EcoCAR Mobility Challenge to enable the testing of one such scheme on Ponce De Leon Avenue in Atlanta, Georgia. Georgia Tech is one of 11 teams participating in the EcoCAR Mobility Challenge, a 4-year …
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Development of a vehicle robotic driver with intelligent control system modelling for automated standard driving-cycle tests
New road vehicles are required to undergo several specific tests to meet the requirement set by governing bodies in various markets. These tests are often carried out over specific driving-cycles. To carry out lab-based driving-cycle tests, a typical vehicle manufacturer will employ a trained …
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Influence of Architecture Design on the Performance and Fuel Efficiency of Hydraulic Hybrid Transmissions
… for increasing the fuel efficiency of on-road vehicles. To further the state-of-the-art this work investigates how architecture design influences the performance, fuel efficiency, and controllability of hydraulic hybrid transmissions. To that end a novel neural network based power management …
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On the utilization of Simultaneous Localization and Mapping(SLAM) along with vehicle dynamics in Mobile Road Mapping Systems
… from pavement management to autonomous vehicle testing. The focus of this research work is to improve the accuracy of MRMS by using the principles of Simultaneous Localization and Mapping (SLAM). First a framework for describing the sensor measurement models in MRMS is developed. Next …
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Plug-in Hybrid Electric Vehicle Supervisory Control Strategy Considerations for Engine Exhaust Emissions and Fuel Use
… Parallel Architecture Extended-Range Electric Vehicle (SPA E-REV) is accomplished through empirically and experimentally measuring vehicle tailpipe emissions and energy consumption for two distinct control strategies. The results of the experimental testing and analysis define how the vehicle …
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Public health impacts of excess NOx̳ emissions from Volkswagen diesel passenger vehicles in Germany
… designed to lower emissions measured during VW vehicle testing for regulatory purposes. Globally, 11 million cars sold between 2008 and 2015 are affected, including about 2.6 million in Germany. On-road emissions tests have yielded mean on-road NOx̳, emissions for these cars of 0.85 g.km-¹, over …
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