Automotive Engineering Commons^™

Comparison Of Emissions Measurement Between A Sensor-Based Compact Emissions Meter And A Standard Pems, Jordan Matthew Leatherman

Graduate Theses, Dissertations, and Problem Reports (ETD)

The emissions produced by diesel engines are detrimental to human health, and the environment. To reduce these harmful emissions, engine manufacturers have used exhaust after treatment systems. The main objective of these after-treatment systems is to reduce exhaust emissions with minimal impact on an engines performance. The increase in emission regulations resulted in the need for a portable device to measure emissions. Portable emissions measurement systems (PEMS) are used to ensure engines comply with regulations in the real world. Although these systems are portable and can be installed on a vehicle they are bulky, expensive and time consuming to install. …

Investigation Of Combustion Characteristics Of A Heavy-Duty Diesel Engine Retrofitted To Natural Gas Spark Ignition Operation, Jinlong Liu

Graduate Theses, Dissertations, and Problem Reports (ETD)

The conversion of existing diesel engines to natural-gas spark ignition operation by adding a gas injector in the intake manifold for fuel delivery and replacing the diesel fuel injector with a spark plug to initiate and control the combustion process can reduce U.S. dependence on petroleum imports and curtail engine-out emissions. As the conventional diesel combustion chamber (i.e., flat head and bowl-in-piston) creates high turbulence, the engine can operate leaner, which would increase its efficiency and reduce emissions. However, natural gas combustion in such retrofitted engines presents differences compared to that in conventional spark ignited engines. Subsequently, the main goal …

A Simplified Simulation Model To Estimate The Storage Length Of The Right-Turn Lane In Left-Hand Traffic At Signalised Intersections For Different Signal Phases And Cycle Timings, Noura Ishak-Thomas, Steven J. Richardson, Sanjay K. Shukla

Research outputs 2014 to 2021

Introduction:

A large number of the current guidelines and models are used to estimate the right-turn lane (RTL) length in left-hand traffic at signalised intersections under split phase, in which the movement of traffic in the right-turn lane and through lane happen concurrently. There is a need to examine other phase types and timings as a part of the RTL design. This is particularly significant in the case of established intersections that cannot be modified due to physical constraints.

Methods:

A MATLAB based simulation programme was developed to provide an estimate of the right-turn lane storage length for different traffic …

Application Of Real Field Connected Vehicle Data For Aggressive Driving Identification On Horizontal Curves, Arash Jahangiri, Vincent Berardi, Sahar Ghanipoor Machiani

Psychology Faculty Articles and Research

The emerging technology of connected vehicles generates a vast amount of data that could be used to enhance roadway safety. In this paper, we focused on safety applications of a real field connected vehicle data on a horizontal curve. The database contains connected vehicle data that were collected on public roads in Ann Arbor, Michigan with instrumented vehicles. Horizontal curve negotiations are associated with a great number of accidents, which are mainly attributed to driving errors. Aggressive/risky driving is a contributing factor to the high rate of crashes on horizontal curves. Using basic safety message data in connected vehicle data …

Design Of Flight Control Laws For A Novel Stratospheric Dual-Aircraft Platform, Cindy Nshuti

Doctoral Dissertations and Master's Theses

Dual-aircraft platform (DAP) is a novel concept that features two glider-like unmanned aerial systems (UAS) tethered via a thin adjustable cable allowing them to sail back-and-forth, without propulsion, using vertical wind shear. DAP offers the potential of a low-cost atmospheric satellite. This thesis presents the results of an initiative to demonstrate this novel flight concept through modeling, simulation, and flight testing at Embry-Riddle Aeronautical University (ERAU). A realistic simulation environment, described herein, was developed to support the development and testing of flight control systems. This environment includes nonlinear aerodynamic models for the aircraft, a multi-element cable dynamics model, propeller-motor thrust …

Who Are Your Users? Comparing Media Professionals' Preconception Of Users To Data-Driven Personas, Lene Nielsen, Soon-Gyu Jung, Jisun An, Joni Salminen, Haewoon Kwak, Bernard J. Jansen

Research Collection School Of Computing and Information Systems

One of the reasons for using personas is to align user understandings across project teams and sites. As part of a larger persona study, at Al Jazeera English (AJE), we conducted 16 qualitative interviews with media producers, the end users of persona descriptions. We asked the participants about their understanding of a typical AJE media consumer, and the variety of answers shows that the understandings are not aligned and are built on a mix of own experiences, own self, assumptions, and data given by the company. The answers are sometimes aligned with the data-driven personas and sometimes not. The end …

2017 Robinson Engine Design, Christian Klem, Alli Giblin, James Gross

ASA Multidisciplinary Research Symposium

The Robinson-Malibu patent is an engine design theory that will reduce emissions, increase MPGs and performance.

Performance Results Of Using Waste Vegetable Oil Based Biodiesel Fuel In A Turboshaft Gas Turbine Engine, Donald Bartlett 5218591, Blaine M. Heisner

ASA Multidisciplinary Research Symposium

The purpose of this research is to record and compare the operating parameters of a turboshaft gas turbine engine using two different blends of biodiesel fuel and the standard Jet A fuel.

What Happens To Nox Emissions Of Vw Diesel Cars When Water/Methanol Injection Is Used?, Andrew Croxell

ASA Multidisciplinary Research Symposium

Volkswagen has come under fire for their "Clean Diesel" automobiles that were found to emit too much NOx (Oxides of Nitrogen) when driven on the street. Since NOx is created by high temperature combustion events, the addition of a water/methanol injection system was tested on a VW diesel vehicle to identify if it could cool combustion temperatures and thus reduce NOx to an acceptable specification.

Advanced Multi-Speed Transmissions And Their Effect On Fuel Economy, Durability And Reliability, Sean Boyle

ASA Multidisciplinary Research Symposium

In a challenge to meet the high corporate average fuel economy (CAFE), manufacturers are using transmissions with 8, 9, and 10 speeds. This oral presentation addresses vehicle fuel economy impact with advanced multi-speed transmissions and also forecasts the reliability and durability when compared to a conventional 5 and 6-speed transmission.

An Empirical Study To Investigate The Effect Of Air Density Changes On The Dsrc Performance, Mostafa El-Said, Vijay Bhuse, Alexander Arendsen

College of Computing Peer-Reviewed Articles

The primary role of Intelligent Transportation Systems (ITS) system is to implement Advanced Driver Assistance Services (ADAS) such as pedestrian detection, fog detection and collisions avoidance. These services rely on detecting and communicating the environment conditions such as heavy rain or snow with nearby vehicles to improve the driver's visibility. ITS systems rely on DSRC to communicate this information via a Vehicle-to-Vehicle (V2V) or Vehicle-to-Infrastructure (V2I) communications architectures. DSCR performance may be susceptible to environmental changes such as air density, gravitation (gravitational acceleration), air temperature, atmospheric pressure, humidity, and precipitation.

The goal of this research is to investigate whether the …

Distributed Control System For Parallel-Connected Dc Boost Converters, Steven Goldsmith

Michigan Tech Patents

The disclosed invention is a distributed control system for operating a DC bus fed by disparate DC power sources that service a known or unknown load. The voltage sources vary in v-i characteristics and have time-varying, maximum supply capacities. Each source is connected to the bus via a boost converter, which may have different dynamic characteristics and power transfer capacities, but are controlled through PWM. The invention tracks the time-varying power sources and apportions their power contribution while maintaining the DC bus voltage within the specifications. A central digital controller solves the steady-state system for the optimal duty cycle settings …

Hibs-Ksharing: Hierarchical Identity-Based Signature Key Sharing For Automotive, Zhuo Wei, Yanjiang Yang, Yongdong Wu, Jian Weng, Robert H. Deng

Research Collection School Of Computing and Information Systems

Equipped with various sensors and intelligent systems, modern cars turn into entities with connectivity, autonomy, and safety. Car rental/car sharing is an innovative transportation concept and integral in today's urban living. It enables users to access a fleet of vehicles located throughout cities. Complementing public transportation, the car-sharing service helps people to meet their transportation needs economically and in an environmentally responsible manner. When a customer wants to rent a car from a rental company or an owner wants to share a private car with his/her friends or family members, the customer or the user should gain admission to the …

Design, Synthesis And Sustainable Applications Of Animal Protein-Based Thermoset Polymers And Covalent Organic Frameworks, Xiaoyan Yu

All Dissertations

Extensive research has been undertaken in recent times on finding suitable, alternative, non-feed and non-fertilizer applications for proteinaceous materials in the animal rendering industry. In this regard, use of such proteins to derive plastics, especially thermoplastics and derived composites, has emerged as a potentially acceptable choice. However, the widespread use of such proteins for aforementioned applications is limited by their poor mechanical properties, high moisture absorption and their inherent odor. In this study, we have engineered, for the first time, high-strength, toughened thermoset polymers from proteinaceous materials obtained from the rendering industry so that they can be employed in high …

Autonomous Speed Control For Kia Optima, Andrew J. Combs, Kyle Fugatt, Kevin Mcfall

The Kennesaw Journal of Undergraduate Research

The standard method for speed control is the cruise control system built into most modern vehicles. These systems employ a PID controller which actuates the accelerator thus, in turn, maintains the desired vehicle speed. The main drawback of such a system is that typically the cruise control will only engage above 25 mph. The goal of this paper is to describe a system which we used to control vehicle speed from a stop to any desired speed using an Arduino microcontroller and a CAN BUS shield, from where autonomous features can be built upon. With this system, we were able …

Battery Power

SIGNED: The Magazine of The Hong Kong Design Institute

Electric cars have always looked like the future, but around the world they are becoming an everyday reality. Can Hong Kong avoid getting stuck in the past or will the city be able to join the electric car revolution?

Formula Sae Power Distribution Controller, Daniel Baron

Electrical Engineering

The Power Distribution Controller senior project aims to replace the current Power Distribution Module (PDM) on Cal Poly’s Formula SAE internal combustion vehicle with a more advanced, configurable, and reliable system. The Power Distribution Controller is a MOSFET based system that can be controlled through either controller area network or a parallel interface to distribute and control power from the vehicle’s battery to the several electrical devices on the car. The Power Distribution Controller also collects output voltage and current data, and communicates this data to the vehicle’s data logger. This will allow engineers to troubleshoot electrical problems on the …

Auxiliary Power System, Karianne Laplante, Nidia Vara, Eve Wassenaar, Carter Whittington

Electrical Engineering

The main objective for this project is to design and build a prototype for an all-electric SUV for the start-up company, Sharpell Technologies. This vehicle will comprise of the following configurations: auxiliary power system (APS), battery management system, battery pack wiring, CAN bus system, DC-DC charging converter, DC/DC auxiliary converter, instrument cluster, and motor controller/inverter. Each car configuration is a project assigned to a 2-4 student team; in total, eight EE senior projects and one ME project is produced. New lightweight batteries are also in the process of being developed to provide a viable electric source for the car. A …

Soft Target For Advanced Emergency Braking System Daimler Trucks, Kurt C. Ebert, Kolter Knapp, Esgar Pulido

Mechanical Engineering

This report provides an overview of the AEBS Soft Target project delivered to Daimler Trucks North Amer- ica as part of the 2016-2017 Mechanical Engineering Senior Design class at California Polytechnic State University, San Luis Obispo. The purpose was to build a soft target to test Advanced Emergency Braking Systems, or AEBS, on Daimler 0 s large trucks. Though this design is for Daimler specifically, there may be other interested parties such as highway safety groups and rival auto manufacturers. Currently, there are no suitable alternative products that satisfy every requirement for Daimler to validate their systems. They require a …

Sae Small Vehicle Lifts, Augustus G. Holz, Nathan K. Harry, Tobias W. Shirts

Mechanical Engineering

The SAE (Society for Automotive Engineers) vehicle teams at Cal Poly need an easy way to access the undersides of their vehicles to facilitate maintenance and servicing. The purpose of this project was to provide a solution that could lift the vehicles effectively and safely from above so that the underside of the vehicles can be accessed, as well as elevating the vehicles to an ergonomic working height. Design specifications were determined based off each vehicle’s requirements in addition to what the team intends to do with their suspended vehicle. After several concept iterations, the team decided to purchase an …