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Ground Vehicle Navigation With Depth Camera And Tracking Camera, Hongseok Kim 2022 Air Force Institute of Technology

Ground Vehicle Navigation With Depth Camera And Tracking Camera, Hongseok Kim

Theses and Dissertations

The aim of this research is to provide autonomous navigation of a 4 wheel vehicle using commercial, off-the-shelf depth and tracking cameras. Some sensitive operations need accuracy within a few inches of navigation ability for indoor or outdoor scenarios where GPS signals are not available. Combination of the Visual Odometry (VO), Distance-Depth (D-D), and Object Detection data from the cameras can be used for accurate navigation and object avoidance. The Intel RealSense D435i, a depth camera, generates depth measurements and the relative position vector of an object. The Intel RealSense T265, a tracking camera, generates its own coordinate system and …


Thermoforming Process Effects On Structural Performance Of Carbon Fiber Reinforced Thermoplastic Composite Parts Through A Manufacturing To Response Pathway, Madhura Limaye, Sai Aditya Pradeep, Anmol Kothari, Sushil Savla, Akshat Agha, Srikanth Pilla, Gang Li 2022 Clemson University

Thermoforming Process Effects On Structural Performance Of Carbon Fiber Reinforced Thermoplastic Composite Parts Through A Manufacturing To Response Pathway, Madhura Limaye, Sai Aditya Pradeep, Anmol Kothari, Sushil Savla, Akshat Agha, Srikanth Pilla, Gang Li

Publications

Thermoforming process of thermoplastic-based continuous CFRP's offer a major advantage in reducing cycle times for large-scale productions, but it can also have a significant impact on the structural performance of the parts by inducing undesirable effects. This necessitates the development of an optimal manufacturing process that minimizes the introduction of undesirable factors in the structure and thereby achieves the targeted mechanical performance. This can be done by first establishing a relationship between the manufacturing process and mechanical performance and successively optimizing it to achieve the desired targets. The current study focuses on the former part, where a manufacturing-to-response (MTR) pathway …


Developing Takeover Request Warning System To Improve Takeover Time And Post-Takeover Performance In Level 3 Automated Drivin, Niloy Talukder 2022 University of Windsor

Developing Takeover Request Warning System To Improve Takeover Time And Post-Takeover Performance In Level 3 Automated Drivin, Niloy Talukder

Electronic Theses and Dissertations

The automotive industry is shifting towards partial (level 3) or fully automated vehicles. An important research question in level 3 automated driving is how quickly drivers can take over the vehicle control in response to a critical event. In this regard, this study develops an integrated takeover request (TOR) system which provides visual and auditorial TOR warning in both vehicle interface and personal portable device (e.g., tablet). The study also evaluated the effectiveness of the integrated TOR system in reducing the takeover time and improving post-takeover performance. For these purposes, 44 drivers participated in the driving simulator experiment where they …


Rc Baja Independent Suspension And Chassis Design And Development, Joseph Fritz 2022 Central Washington University

Rc Baja Independent Suspension And Chassis Design And Development, Joseph Fritz

All Undergraduate Projects

The goal of this project is to develop an RC car to compete in the MET RC Baja competition. A car will be constructed to be as lightweight, durable, and fast as possible while abiding by ROAR (Remotely Operated Auto Racers) regulations. As such, suspension, steering, chassis and drivetrain systems will need to be devised to form a complete vehicle. The chassis must provide mounting points for all other components of the vehicle and provide a rigid platform in order to create a stable vehicle. The suspension must operate smoothly, allowing for at least 1 inch of ground clearance, …


Rc Baja, Cam Jamison 2022 Central Washington University

Rc Baja, Cam Jamison

All Undergraduate Projects

To satisfy the Mechanical Engineering Technology program requirements a senior project was accomplished with an RC car build. An RC car was designed, manufactured, and tested to meet all requirements set forth by American Society of Mechanical Engineers (ASME) RC Baja competition. A two-person team was assembled to build the RC Car. Teammate Paul Lervick was responsible for the suspension and chassis components and the other was responsible for the drivetrain and steering components. During the fall quarter drawings and general designs were created. Many different RC cars and motorized vehicles were referenced when initially coming up with aesthetic ideas. …


Electric Vehicles: Design, Development And Growth Directions, David Kennedy 2022 Technological University Dublin

Electric Vehicles: Design, Development And Growth Directions, David Kennedy

Conference Papers

The transition from Petrol/Diesel and LPG powered vehicles to electric types and hydrogen powered is in progress. The world demand, from China to UK and Tokyo to New York is growing and includes new brands to established companies. Toyota has developed Hybrids on almost all of its Petrol/Diesel models during this transition. The scale of the industry is enormous with experts arguing for and against the performance, sustainability, ethical reasoning, costs and reliability of the technology for now and the future, providing logical answers to support or reject their arguments for success or failure. One in 12 cars sold across …


Advanced Anti-Buckling Device Coupled With Real-Time Digital Image Correlation For Complex Cyclic Tension-Compression Testing Of Lightweight Materials, Akshat Agha, Fadi Abu-Farha 2022 Clemson University

Advanced Anti-Buckling Device Coupled With Real-Time Digital Image Correlation For Complex Cyclic Tension-Compression Testing Of Lightweight Materials, Akshat Agha, Fadi Abu-Farha

Publications

In sheet metal forming and stamping operations, modeling the behavior of sheet metal alloys for springback prediction is known to be very challenging, not only because of the complex models needed to account for kinematic hardening (such as the Yoshida-Uemori Model) but more importantly because of the experimental limitations of our ability to perform the complex tests needed to calibrate such models. For instance, reliable monotonic uniaxial compression tests and then cyclic tension-followed-by-compression tests are essential for characterizing the response of the material under those loading conditions, providing quantitative evaluation of the Bauschinger Effect and tension/compression asymmetry in the material, …


An Exploration Of Electric Vehicles, Oliver P. Allen 2022 Bard College

An Exploration Of Electric Vehicles, Oliver P. Allen

Senior Projects Spring 2022

The SPROJ will be an investigation into what it takes to build an electric vehicle, from design to engineering to the manufacturing. In the past couple years especially, companies have developed their own electric vehicles in search of an environmentally friendly and energy efficient way of using our Earth’s resources. This project aims to produce a greater understanding of what this development entails. The main ideas were to develop a design that would be the blueprint for the vehicle, look into the physical properties of the materials and create an efficient power conversion from motor to wheels. The process and …


Demand Side Management Of Electric Vehicles In Smart Grids: A Survey On Strategies, Challenges, Modeling, And Optimization, Sarthak Mohanty, Subhasis Panda, Shubhranshu Mohan Parida, Pravat Kumar Rout, Binod Kumar Sahu, Mohit Bajaj, Hossam Zawbaa, Nallapaneni Manoj Kumar, Salah Kamel Salah Kamel 2022 DepartmentSiksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar, 751030, India

Demand Side Management Of Electric Vehicles In Smart Grids: A Survey On Strategies, Challenges, Modeling, And Optimization, Sarthak Mohanty, Subhasis Panda, Shubhranshu Mohan Parida, Pravat Kumar Rout, Binod Kumar Sahu, Mohit Bajaj, Hossam Zawbaa, Nallapaneni Manoj Kumar, Salah Kamel Salah Kamel

Articles

The shift of transportation technology from internal combustion engine (ICE) based vehicles to electricvehicles (EVs) in recent times due to their lower emissions, fuel costs, and greater efficiency hasbrought EV technology to the forefront of the electric power distribution systems due to theirability to interact with the grid through vehicle-to-grid (V2G) infrastructure. The greater adoptionof EVs presents an ideal use-case scenario of EVs acting as power dispatch, storage, and ancillaryservice-providing units. This EV aspect can be utilized more in the current smart grid (SG) scenarioby incorporating demand-side management (DSM) through EV integration. The integration of EVswith DSM techniques is hurdled …


Drivers’ Response To Scenarios When Driving Connected And Automated Vehicles Compared To Vehicles With And Without Driver Assist Technology, Srinivas S. Pulugurtha, Raghuveer Gouribhatla 2022 University of North Carolina at Charlotte

Drivers’ Response To Scenarios When Driving Connected And Automated Vehicles Compared To Vehicles With And Without Driver Assist Technology, Srinivas S. Pulugurtha, Raghuveer Gouribhatla

Mineta Transportation Institute Publications

Traffic related crashes cause more than 38,000 fatalities every year in the United States. They are the leading cause of death among drivers up to 54 years in age and incur $871 million in losses each year. Driver errors contribute to about 94% of these crashes. In response, automotive companies have been developing vehicles with advanced driver assistance systems (ADAS) that aid in various driving tasks. These features are aimed at enhancing safety by either warning drivers of a potential hazard or picking up certain driving maneuvers like maintaining the lane. These features are already part of vehicles with Driver …


Analysis Of Bio-Alcohols With Mie-Scattering And Ltc For Lowered Emissions In Pcci, Cesar E. Carapia 2022 Georgia Southern University

Analysis Of Bio-Alcohols With Mie-Scattering And Ltc For Lowered Emissions In Pcci, Cesar E. Carapia

Electronic Theses and Dissertations

An investigation was conducted on the optimal engine parameters for facilitating lower NOX and soot emissions of PCCI combustion with either ethanol or n-butanol. The PFI fuels selected were tested at loads of 3, 4, and 5 Bar IMEP for a total of 28 total combustion tests with variations made to the EGR% and boost pressure for each test in order to find the optimal emissions strategy. A Mie-scattering spray fuel analysis was also conducted on the three fuels to gain insight on their influence on combustion/emissions characteristics. It was found that ethanol had a greater average Sauter Mean Diameter …


Concept Evaluation And Development Of A Novel Approach For Integration Of Turbogeneration, Electrification And Supercharging On Heavy Duty Engines, Satyum Joshi 2022 Michigan Technological University

Concept Evaluation And Development Of A Novel Approach For Integration Of Turbogeneration, Electrification And Supercharging On Heavy Duty Engines, Satyum Joshi

Dissertations, Master's Theses and Master's Reports

While many technologies such as electrically assisted turbocharging, exhaust energy recovery and mild hybridization have already proven to significantly increase heavy-duty engine efficiency, the key challenge to their widespread adoption has been their cost effectiveness and packaging. This research specifically addresses these challenges through evaluation and development of a novel technology concept termed as the Integrated Turbogeneration, Electrification and Supercharging (ITES) system. The concept integrates a secondary compressor, a turbocompound/expander turbine and an electric motor through a planetary gearset into the engine cranktrain. The approach enables a reduced system cost and space-claim, while maximizing the efficiency benefits of independent technologies. …


An Experimental Study On The Impact Of Water Injection On The Performance And Emissions Of A Natural Gas – Diesel Pilot Engine, Nic Tuma 2022 Michigan Technological University

An Experimental Study On The Impact Of Water Injection On The Performance And Emissions Of A Natural Gas – Diesel Pilot Engine, Nic Tuma

Dissertations, Master's Theses and Master's Reports

Natural gas has been gaining popularity as an alternative fuel due to its high availability, low CO2 emissions, and low cost. In this experimental study, water injection’s impact on medium and heavy-duty engine operation fueled by natural gas and pilot diesel injection for ignition was studied under stochiometric operation for use with a three-way catalytic converter to meet criteria emissions for off-road power generation. To retain high efficiencies, a high compression ratio of 17.3:1 was used. Maintaining stoichiometric operation with a high compression ratio leads to combustion knock, pre-ignition, and high NOx formation. Conventionally, cooled EGR can be used to …


Enabler Methodology To Use A Dynamic Simulator To Develop Global Vehicles, Manuella Maria Aleci 2022 University of Windsor

Enabler Methodology To Use A Dynamic Simulator To Develop Global Vehicles, Manuella Maria Aleci

Electronic Theses and Dissertations

The international car manufacturer Stellantis designs and produces vehicles for fourteen brands. Some brand characteristics satisfy both the European and North American market (e.g., Jeep), while others primarily target one market or the other. Efforts have been made recently to harmonize design and development processes within the global company. The cornerstone of this project is the subjective assessment procedure performed on the dynamic driving simulator, a newly developed technology that reduces time and cost during the development phase of a new car model. The technology can be used prior to the production of physical prototypes, allowing the assessment of handling …


Analysis Of Combustion In Plasma Electrolytic Oxidation (Peo) Coatings Of The Piston Surface In Spark Ignition Engines, Brendon Bain 2022 University of Windsor

Analysis Of Combustion In Plasma Electrolytic Oxidation (Peo) Coatings Of The Piston Surface In Spark Ignition Engines, Brendon Bain

Electronic Theses and Dissertations

With the global effort to “green” the transportation industry, the internal combustion engine (ICE) is required to reduce its carbon footprint and can do so by increasing efficiency. Plasma Electrolytic Oxidation (PEO) coatings confer properties of high wear and corrosion resistance, high hardness, excellent adhesion and a superior thermal barrier to their substrate, suggesting that coating of ICE components has the potential to greatly improve the combustion efficiency. The primary objective of this thesis is to analyze the effects of PEO coating on the surface of pistons in a spark ignition ICE, with the goal of increasing efficiency, to address …


Effects On Vehicle Ride Comfort Of An Adaptive Suspension System Using Neural Networks, Sylvia Yin Zhixian 2022 University of Windsor

Effects On Vehicle Ride Comfort Of An Adaptive Suspension System Using Neural Networks, Sylvia Yin Zhixian

Electronic Theses and Dissertations

Suspension systems in the auto industry have always been a topic of interest, as they relate to so many aspects of vehicles. Various types of suspension are commonly used now, such as passive suspensions, semi-active suspensions and active suspensions. However, the current technology mainly focuses on the change of damping ratio. The aim of this thesis is to consider both spring and damper properties for suspensions of an off-road vehicle. In order to do this, a 10-degree of freedom model was built using the EoM software in Julia. The output state space matrices from EoM were used as an input …


Numerical Prediction Of The Impact Response Of Tailored 1500 Mpa And 2000 Mpa Press Hardening Boron Steel, Joseph Guignard 2022 University of Windsor

Numerical Prediction Of The Impact Response Of Tailored 1500 Mpa And 2000 Mpa Press Hardening Boron Steel, Joseph Guignard

Electronic Theses and Dissertations

This thesis investigates the response of 1500 MPa and 2000 MPa press hardening steel (PHS) in a dynamic crushing scenario. The work involves creating numerical models to simulate tailored channel sections. The zones of different hardness are created using the tailored hot stamping process (THS), where a heated die set is used to quench an austenitized blank to produce parts with zones of differentiating hardness.

The 1500 MPa PHS was quenched using a die heated to different temperatures to produce a range of microstructures (225 HV to 473 HV) as well as the 2000 MPa PHS (297 HV to 574 …


Redesign And Benchmarking Of Electric Vehicle Batteries For Demanufacturing For Secondary Life Applications In The Circular Economy, Abhay Singh Rathaur 2022 University of Windsor

Redesign And Benchmarking Of Electric Vehicle Batteries For Demanufacturing For Secondary Life Applications In The Circular Economy, Abhay Singh Rathaur

Electronic Theses and Dissertations

As per the latest records, the transportation sector is the second largest in energy consumption and plays a major role in air pollution and co2 emission. One solution to curb this pollution and release of hazardous gases is li-ion batteries by electrifying the vehicles. However, these batteries have one factor over here: once EV batteries reach 70-80% charge holding capacity, they are not good enough for traction in the vehicle. Therefore, replacing these batteries with a new ones is necessary. However, these discarded batteries have enough charge holding capacity, which can be used in secondary applications called second- …


Decentralized Cooperative Localization For Multi-Robot Systems In Challenging Environments, Eduardo Gutierrez 2022 West Virginia University

Decentralized Cooperative Localization For Multi-Robot Systems In Challenging Environments, Eduardo Gutierrez

Graduate Theses, Dissertations, and Problem Reports

Multi-robot systems provide more adaptability and robustness than conventional single-robot systems. This is because they have the ability to achieve partial completion of a task in the presence of failures due to the intrinsic inclusion of non-single-point failure. In multi-robot systems, cooperative localization refers to the use of relative measurements to improve the group’s overall localization performance. While centralized architectures in the system may result in unfeasible cases due to the high cost of computation and communication, decentralized methods distribute the computation among the robots in the group, enhancing the performance and making the system more efficient. Achieving a reliable …


การศึกษาและวิจัยสลักเหล็กทดแทนสลักอะลูมิเนียมที่ชำรุดของสะพานทหาร เอ็ม จี บี, ธัญญลักษณ์ เอี๊ยสกุล 2022 คณะวิศวกรรมศาสตร์

การศึกษาและวิจัยสลักเหล็กทดแทนสลักอะลูมิเนียมที่ชำรุดของสะพานทหาร เอ็ม จี บี, ธัญญลักษณ์ เอี๊ยสกุล

Chulalongkorn University Theses and Dissertations (Chula ETD)

ในทางทหารสะพานเป็นยุทโธปกรณ์ที่มีความสำคัญสำหรับการส่งกำลังทหารเข้าไปในพื้นที่สู้รบในยามสงคราม อีกทั้งยังมีประโยชน์ในการใช้งานด้านงานเร่งด่วนฉุกเฉิน รวมทั้งงานบุกเบิกในการสร้างถนนหรือการใช้ในยามเกิดภัยพิบัติทางธรรมชาติ ได้แก่ น้ำท่วม ซึ่งเป็นเหตุทำให้ทางถูกตัดขาด ทหารช่างจึงใช้สะพานทหารในการเข้าไปแก้ปัญหาบรรเทาความเดือดร้อนแก่ผู้ประสบภัย ในปัจจุบันสะพานทหาร เอ็ม จี บี เกิดการชำรุดในบริเวณข้อต่อของสลักสะพานจึงทำให้ไม่สามารถใช้งานได้ รวมทั้งวัสดุที่ใช้ทำสลักสะพานนั้นเป็นวัสดุที่ไม่มีการผลิตเนื่องจากเป็นความลับทางการทหารของประเทศที่ผลิต การวิจัยครั้งนี้จึงมีวัตถุประสงค์เพื่อศึกษาพฤติกรรมการรับแรงเฉือนและโมเมนต์ดัดของสะพานทหาร เอ็ม จี บี และสร้างแบบจำลองไฟไนต์เอลิเมนต์ นำผลที่ได้เปรียบเทียบและวิเคราะห์กับแรงเฉือนโมเมนต์ที่ได้ศึกษาเพื่อหาวัสดุเหล็กทดแทนวัสดุอะลูมิเนียมที่ชำรุด โดยจากการทดสอบความแข็งแรงของวัสดุเหล็ก S45C พบว่ามีความแข็งแรงและสามารถใช้ทดแทนวัสดุอะลูมิเนียมที่ชำรุดในปัจจุบันได้


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