Automotive Engineering Commons^™

Electric Vehicle Battery Charging Infrastructure, Javan Paul Luce Tanner

Industrial Technology Master's Projects

The progression away from internal combustion engines has been slowly gaining momentum over the last ten years. This project investigated the pathway forward regarding the charging of electric vehicles. As governments have begun enacting legislative initiatives in support of a greener and more sustainable future, we are now witnessing more rapid progress toward widespread adoption of fully electric and hybrid vehicles. This study focused directly on battery electric vehicles (BEVs). Some automotive manufacturers (each with their own timeframe) have committed to producing only these BEVs, and eliminating traditional combustion engine vehicles. This investigation was designed to examine the current state …

“Transport Batteryfication” Analysis Of Pre-Recycling Phases Of End-Of-Life Electric Vehicle Lithium-Ion Batteries From An Irish Perspective, Matt Mcguinness

Masters

Transport plays a key role in maintaining the economic prosperity of our society. However, transport has remained reliant on fossil fuels, a main contributor to climate change. New EU and Government policies aim to decarbonise the transport sector through batteryfication by shifting to electric vehicles. The lithium-ion battery will underpin this strategy.

Lithium-ion batteries have a limited lifespan for automotive applications, this will bring new and unprecedented challenges for end-of-life waste management. The recent growth of electric vehicles is expected to continue exponentially which raises important questions on how to process this new waste stream.

This study investigates the recycling …

An Overview On Why Electric Cars Are The Future Of Transportation, Saqlain Ali

Electronic Theses, Projects, and Dissertations

The motor vehicle industry has been the leading consumer of fossil fuel worldwide resulting in adverse effects on the environment. This study used secondary sources of information from previous research in scholarly journals, Google scholar as well as eBooks, case studies, science direct, research gate, and google books to investigate. The findings show that some of the major milestones achieved in the electric car development include: the reduction of charging time for effectiveness in use, the introduction of supercapacitors that ensures increased charge storage, and with greater effective electromotive force. Additionally, some governments in developed countries do offer subsidies to …

Integration Of Blockchain Technology Into Automobiles To Prevent And Study The Causes Of Accidents, John Kim

Electronic Theses, Projects, and Dissertations

Automobile collisions occur daily. We now live in an information-driven world, one where technology is quickly evolving. Blockchain technology can change the automotive industry, the safety of the motoring public and its surrounding environment by incorporating this vast array of information. It can place safety and efficiency at the forefront to pedestrians, public establishments, and provide public agencies with pertinent information securely and efficiently. Other industries where Blockchain technology has been effective in are as follows: supply chain management, logistics, and banking. This paper reviews some statistical information regarding automobile collisions, Blockchain technology, Smart Contracts, Smart Cities; assesses the feasibility …

Coupled Thermal Mechanical Analysis Methodology For Thermal Performance Evaluation And Failure Mode Identification Of Thermal Barrier Coatings For Heavy Duty Diesel Engines, Sean Moser

All Dissertations

Consumer demand and government regulation, as well as the Department of Energy’s SuperTruck program has motivated extraordinary effort to maximize the heavy-duty diesel engine’s thermal efficiency. Thermal barrier coatings (TBCs) provide an avenue for increasing the thermal efficiency of the mixing controlled combustion (MCC) process through the reduction of heat transfer losses. The myriad of previous studies presents conflicting conclusions, both in the merit of TBCs for cycle improvement, and also for coating durability and potential adverse effects from coating failure. While the most recent studies with thin thermal barrier coatings (~100-250 µm) have shown a majority of positive cycle …

Solar-Powered Automated Transportation: Feasibility And Visualization, Burford J. Furman, Laxmi Ramasubramanian, Shannon Mcdonald, Ron Swenson, Jack Fogelquist, Yu Chiao, Alex Pape, Mario Cruz

Mineta Transportation Institute

A solar-powered automated transportation network (ATN) connecting the North and South campuses of San José State University with three passenger stations was designed, visualized, and analyzed in terms of its energy usage, carbon offset, and cost. The study’s methodology included the use of tools and software such as ArcGIS, SketchUp, Infraworks, Sketchup, Rhinoceros, and Autodesk 3DS Max. ATN vehicle energy usage was estimated using data from the university’s Park & Ride shuttle bus operation and by modeling with SUMOPy, the advanced simulation suite for the micro-traffic simulator SUMO. The energy study showed that an extensive solar photovoltaic (PV) canopy over …

Numerical Study Of The Impact Of Dme Blending On Emissions From A Compression Ignition Engine, Hongwei Lei

Electronic Theses and Dissertations

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Compression ignition (CI) engines and diesel fuel are commonly used for long-distance transportation, marine transportation, and construction equipment due to their high thermal efficiency and relatively low cost. Meanwhile, compression ignition (CI) engine emissions such as CO, NOx, and soot cause human health issues, climate change, and pollution problems. To reduce emissions, especially by restraining the formation of soot, some new energy resources are researched for replacing diesel fuel.

Dimethyl ether (DME) is one kind of new energy resource with four main advantages: high cetane number, low auto-ignition temperature, simple chemical structure, and high oxygen content. A wide range …

Significance Of The Vehicle Front Design And Gait Postures On Traumatic Brain Injuries Sustained By Different Pedestrian Populations During Car-To-Pedestrian Collisions (Cpcs) - A Computational Approach, Thava Kalishwara Kumar Gunasekaran

Electronic Thesis and Dissertation Repository

With the increasing prevalence of traumatic brain injuries (TBIs) in road traffic accidents (RTAs), it was identified that the shape of the vehicle's front end and pedestrian postures prior to impact significantly influence pedestrian head injuries. However, the effect of vehicle front shape parameters and gait postures on TBIs sustained in car-to-pedestrian collisions (CPCs) has yet to be quantified. This study used a computational approach to analyze the effect of vehicle shape parameters and pedestrian gait postures on pedestrian TBI risks across a diverse pedestrian population with varying body sizes. Our findings indicate that vehicle shape parameter such as BLEH …

Efficient Design Of Integrated Underbody And Battery Pack For Battery Electric Vehicles, Gabriele Rosso

Electronic Theses and Dissertations

Climate change and the consequent more restrictive regulations are pushing the industry towards higher efficiency and lower emissions means of transport. The road transport sector is deeply affected, leading the main Original Equipment Manufacturers (OEMs) to start the transition to alternative powertrains, among which Battery Electric Vehicles (BEVs) are the faster-growing.

The large, heavy, and safety-critical battery pack asks for a specific optimized solution for a lightweight and high-performance vehicle platform.

In this research, a first benchmarking analysis is presented to study the current state-of-the-art for BEV underbody and battery pack designs. Following this investigation, a classification scheme was designed …

Mixed Reality Application For Inspection And Validation In Industrial Environments: Human Performance And Brain-Computer Interface Advantages Over Gestures, Silvio Da Col

Electronic Theses and Dissertations

Shortening product development cycles demand increasingly efficient methods and tools for the planning of complex production systems. Recently, augmented reality (AR) technologies have been introduced in manufacturing planning functions. Working in augmented environments, users usually select virtual objects with hand gestures that are associated with arm fatigue.

In the first study, a mixed reality (MR) application for inspection and validation of a production line has been developed. The application allows to show the virtual environment in Augmented/Mixed Reality, and it allows to import three-dimensional (3D) CAD with information and structure in a specific position. The application makes the user interacting …

Quantification Of Velocity At The Sparkplug In A Lab Scale Combustion Chamber, Mayur Panduranga Kodikal

Electronic Theses and Dissertations

Lean burn has been considered an effective strategy to improve the thermal efficiency of spark-ignition engines. Under lean or diluted conditions, however, the combustion speed is reduced. Therefore, to speed up the combustion, in-cylinder turbulence is induced which may impede the spark initiation. This research aims to quantify the turbulence in a constant volume optical combustion chamber.

An Improved Delayed Detached Eddy Simulation (IDDES) study was done to understand the turbulence characteristics of the flow in the optical chamber. Spark anemometry was used to obtain a relationship between the spark plasma evolution and freestream velocity. Finally, this technique has been …

Subjective Evaluation Of Vehicle Semi-Active Suspension For Improved Ride And Handling, Zachery Sinasac

Electronic Theses and Dissertations

The number of passenger cars currently equipped with semi-active suspensions has been steadily increasing in recent decades. These suspension systems provide an improvement in ride and handling when compared to passive suspensions. Currently, the approach to evaluating and tuning semi-active suspensions has been limited to objective methods or time-consuming alterations made on physical components. To alleviate the time and costs and improve the fidelity of such methods, a novel solution to subjectively evaluating vehicle semi-active suspensions is presented. The subjective evaluation method herein involves the use of a state-of-the-art dynamic driving simulator with drivers to subjectively evaluate and tune virtual …

Assessment Of Conventional And Air-Jet Wheel Deflectors For Drag Reduction Of The Drivaer Model, Sandra K. S. Boetcher, Kaloki L. Nabutola

Publications

Aerodynamic drag is a large resistance force to vehicle motion, particularly at highway speeds. Conventional wheel deflectors were designed to reduce the wheel drag and, consequently, the overall vehicle drag; however, they may actually be detrimental to vehicle aerodynamics in modern designs. In the present study, computational fluid dynamics simulations were conducted on the notchback DrivAer model—a simplified, yet realistic, open-source vehicle model that incorporates features of a modern passenger vehicle. Conventional and air-jet wheel deflectors upstream of the front wheels were introduced to assess the effect of underbody-flow deflection on the vehicle drag. Conventional wheel-deflector designs with varying heights …

Acoustic Signature Analysis And Sound Source Localization For A Three-Phase Ac Induction Motor, Daniel Ludwigsen, Anand Krishnasarma, Seyed Jamaleddin Mostafavi Yazdi, Allan Taylor, Javad Baqersad

Natural Sciences Publications

As part of the recent electrification of the transportation industry, internal combustion engines are being coupled with or replaced by electric motors. This movement towards an electrified drivetrain poses new noise, vibration, and harshness (NVH) challenges related to electric motors. In this paper, the acoustic signature of an electric motor was analyzed to obtain a better understanding of the sound generated by these motors. This work provides an insight into an acoustic measurement technique that can be used to identify certain frequency bands that significantly contribute to the perceived sound. In the first part, the structural response of the motor …

Research On Collision Avoidance And Safety Measures Of Drilling Platform Towing Group, Junpo Liu

Maritime Safety & Environment Management Dissertations (Dalian)

No abstract provided.

In The Context Of Unmanned Vessels : Obstacles To The Application Of Colregs And Suggestions For Its Amendments, Baochuan Sun

Maritime Safety & Environment Management Dissertations (Dalian)

No abstract provided.

Research On The Methods Of Ship's Autonomous Collision Avoidance In Complex Environment, Hongguang Lyu

Maritime Safety & Environment Management Dissertations (Dalian)

No abstract provided.

Improved Ships Course-Keeping Robust Control Algorithm Based On Backstepping And Nonlinear Feedback, Sirui Wang

Maritime Safety & Environment Management Dissertations (Dalian)

No abstract provided.

Data-Driven Based Automatic Routing Planning For Mass, Qingwu Wang

Maritime Safety & Environment Management Dissertations (Dalian)

No abstract provided.

Active Control Of Coherent Structures In An Axisymmetric Jet, Michael Marques Goncalves

Doctoral Dissertations and Master's Theses

The primary objective of this work is to develop high-fidelity simulation model for jet noise control predictions and quantify the sound reduction when an external source frequency mode excitation is imposed on the jet flow. Whereas passive approaches using mixing devices, such as chevrons, have been shown to reduce low-frequency noise in jet engines, such approaches incur a performance penalty since they result in a reduced thrust. To avoid a performance penalty in reducing jet noise, the current work investigates a open-loop active noise control (ANC) system that utilizes a unsteady microjet actuator on the nozzle lip in the downstream …

The Impact Of High Voltage Electrode Diameter On Spark Discharge Process, Jiaming Zhang

Electronic Theses and Dissertations

The ever-growing demands to meet the exhaust emission regulations and fuel economy requirements, drive the development of modern spark ignition (SI) engines towards lean or diluted conditions at boosted intake pressure and with intensified charge motions. Boosted in-cylinder pressure conditions require additional energy to initiate the spark discharge, thereby challenging the ignition system. Additionally, the geometry of the spark plug has a profound influence on the spark discharge characteristics. The main objective of this research is to study the impact of high voltage electrode diameter on breakdown voltage and equivalent spark gap resistance at elevated background pressures (1-25 bar abs.). …

Correlation Between Microstructure And Mechanical Properties Of Press-Hardenable Steels For Various Quenching Rates, Radha Thakkar

Electronic Theses and Dissertations

Manufacturing structural automotive components by hot stamping advanced high strength steel sheets with tailored mechanical properties helps to reduce vehicle weight and improve crashworthiness. The purpose of this research work is to establish a relationship between the die temperature in hot stamping, the corresponding as-quenched microstructural features and mechanical properties. A series of experiments were carried out in which 1.4 mm 22MnB5 and 1.4 mm 37MnB4 steel sheet specimens were austenitized to 930°C and quenched between dies preheated to different temperatures. The mechanical properties were determined from tensile tests and hardness measurements and the corresponding microstructures were analyzed. It was …

Development Of Attachments For The Quanser Qube, Diane Peters, Aaron Joseph Michael Jones

Mechanical Engineering Presentations And Conference Materials

The Quanser Qube is an integrated servomotor lab hardware platform [1], shown in Figure 1. This platform includes not only the direct-drive brushed DC motor, but also two encoders as well as the data acquisition system. One encoder is used to measure the rotation of the DC motor’s shaft itself. It is supplied with two standard items, an inertia disk and an inverted pendulum. The inertia disk is a small aluminum part, which mounts to the equipment using magnets. The inverted pendulum also mounts to the equipment with magnets, with an encoder that plugs into the equipment to provide an …

Modernization Of Scienttific Mathematics Formula In Technology, Iwasan D. Kejawa Ed.D, Prof. Iwasan D. Kejawa Ed.D

Department of Mathematics: Faculty Publications

Abstract
Is it true that we solve problem using techniques in form of formula? Mathematical formulas can be derived through thinking of a problem or situation. Research has shown that we can create formulas by applying theoretical, technical, and applied knowledge. The knowledge derives from brainstorming and actual experience can be represented by formulas. It is intended that this research article is geared by an audience of average knowledge level of solving mathematics and scientific intricacies. This work details an introductory level of simple, at times complex problems in a mathematical epidermis and computability and solvability in a Computer Science. …

Move: Mobile Observers Variants And Extensions, Ryan Florin

Computer Science Theses & Dissertations

Traffic state estimation is a fundamental task of Intelligent Transportation Systems. Recent advances in sensor technology and emerging computer and vehicular communications paradigms have brought the task of estimating traffic state parameters in real-time within reach.

This has led to the main research question of this thesis: Can a vehicle accurately estimate traffic parameters using onboard resources shared through CV technology in a lightweight manner without utilizing centralized or roadside infrastructure?

In 1954 Wardrop and Charlesworth proposed the Moving Observer method to measure traffic parameters based on an observed number of vehicle passes. We start by proposing methods for detecting …

Interfacial Heat Transfer In Squeeze Casting Of Cast Al Alloy A380 And Mg Alloy Az91 And Wrought Alloy Az31, Luyang Ren

Electronic Theses and Dissertations

The weight reduction of vehicles and airplanes in the automotive and aerospace industries is urgently needed due to the government regulation and market demand. To satisfy engineering performance of lightweight auto and aero components, high strength light alloys such as aluminum (Al) or magnesium (Mg) alloys are usually adopted. This study was intended to explore a solution for casting high strength cast and wrought Al and Mg alloys. Before light alloys can be utilized for mass production, critical processing parameters need to be accurately determined. The interfacial heat transfer coefficient is one of the most important factors in casting processes. …

Technology Of Mobility Hubs In Autopian Futuristic Cities, Mohamad Abdallah M.Abdallah, Marwan Halabi, Hiba Mohsen, Maged Youssef

BAU Journal - Science and Technology

Utopias envision perfect societies, however in practice, when imperfect humans attempt perfection they fail miserably. Hence, if Utopia means no place, then Autopia is the alternative place where progress is steadfast and measured by securing a better world for tomorrow. In 2012, the UN issued a report stating that population growth will increase exponentially, reaching up to 9 billion by 2040. The report also states that melted ice due to global warming will eventually cover up to 7% of the world’s land. At this rate, humans will require three times the earth’s land area to keep up with their required …

Problem Solving Methods For Synthesis Of Physical Principles Of Mechatronic Module Operations In Intelligent Robotic Systems, Nazarov Khayriddin Nuritdinovich

Chemical Technology, Control and Management

The scientific paper investigates the methods for solving problems of synthesis of physical principles of operation of mechatronic modules of intelligent robotic systems are considered.

In addition, it deals with the specifics of the process of synthesis of the physical principles of the operation of mechatronic modules using predicate models, list models and information matrices of physical and technical effects.

It shows the interpretation of the components of the model of the system for the synthesis of the physical principles of operation of mechatronic modules of intelligent robotic systems and automatic control and the features of the synthesis algorithm for …

Evaluation Of Vegetable Oil-Sourced Lubricants For Transition To Green Alternative At Sustainable Energy Solutions For Automotive Industry, Figen Balo, Lutfa S. Sua

Thriving Through Climate Change and Pandemic 2021

In recent decades, the rising energy needs has concluded in much more lubricant usage. Lubricants play a significant part in decreasing the friction and wear among bustling superficies. They are among the greatest drivers of oil need. The ecological affects arising from the direct petroleum-based lubricants’ entry requires the implementation of bio-sourced lubricants as a perfect option to petroleum-derived lubricants. The bio-sourced lubricants’ primary resources are oils derived from plants. There are numerous compatibilities between petroleum-based lubricants and triglycerides from the view point of physical and chemical features. Because of their non-food competition, less expense, and simple usability, vegetable-sourced oils …

Dynamic Modelling Of Building Envelope On Energy Usage, Oselen J. Imafidon, David S-K Ting

Thriving Through Climate Change and Pandemic 2021

This study investigates the influence of the building envelope on the energy usage of a chosen building using the simulation program TRNSYS. The building located at Carleton University, Ottawa, Canada is a small building retroffited as part of the Natural Resources Canada’s Prefabricated Exterior Energy Retrofit (PEER) project. The project's aim is to develop prefabricated technologies to be used for retroffiting existing building envelopes of homes in Canada. The thermal resistance (RSI) of the existing walls were improved from 1.80 m2K/W to about 6.40 m2K/W after installation of the prefarbricated retrofit wall system. Analytical verification of the whole building performance …