Your Selections

SAE Student/Young Professional Technical Paper Competition
Show Only

Collections

Content Types

Dates

Sectors

Topics

Authors

Publishers

Affiliations

Events

   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Analysis of Accelerator Hardware for Real-Time Processing in Autonomous Vehicles and Data Centers.

Wayne State University-Kyle W. Brown
  • Technical Paper
  • 2019-01-2615
To be published on 2019-10-22 by SAE International in United States
The development of Autonomous Vehicles (AV) has become a popular subject in academia and industry. Companies and cities are quickly realizing the opportunities that AVs can generate from Mobility as a Service to traffic safety. The challenges for the infrastructure to incorporate AVs as a viable transportation source are immense, beginning with an outdated infrastructure. Historically, the transportation infrastructure has been fraught with challenges from underfunding, economics, and misappropriations. With the current infrastructure unable to support many of the services required by a fully connected network, a transformation will be necessary to meet growing mobility needs. The role of accelerating technology in data centers are key for production operations among industry leaders such as Amazon and Microsoft. The same accelerating technology that has successfully impacted data centers will play the same role in much smaller Edge data centers for Smart-City design in the transportation infrastructure. The Edge data centers will be tasked with processing, latency, and tasking, caching and offloading (TCO) of millions of connected vehicles simultaneously. With the recent upgrade of 5G from 4G…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Design and Fabrication of a Formula SAE Undertray

Colorado School of Mines-Jacob Thom, Bridger Armstrong, Robin Chow, Forrest Denham, Quinn Khosla, Luke La Rocque, John Oldland, Steven Ripple, Nicholas Sammons
  • Technical Paper
  • 2019-01-2596
To be published on 2019-10-22 by SAE International in United States
Aerodynamic packages can provide a significant performance benefit to Formula SAE cars, but design and development of a full aerodynamics package can be time-consuming and expensive. An undertray system can provide significant aerodynamic benefits at a lower cost than a full aerodynamics package with front and rear wings. To properly design and test an undertray, a robust program of computational fluid dynamics (CFD) analysis and verification is needed. CFD analysis can be challenging, especially for large external flow problems like that of a full car. Due to this difficulty, careful meshing and setup of simulations is necessary to ensure accurate results. Much like analysis, fabrication of an aerodynamics package for a Formula SAE car is difficult. Fiberglass and carbon fiber layup processes are commonly used, but are prone to a variety of issues, and can be costly and time-consuming. Therefore, a thorough layup schedule and a careful manufacturing process is necessary. Fiberglass and carbon fiber were chosen as materials for the undertray due to their low weight relative to strength. These materials are often difficult…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Next generation HEV powertrain design tools: roadmap and challenges

Politecnico di Torino-Pier Giuseppe Anselma, Giovanni Belingardi
  • Technical Paper
  • 2019-01-2602
To be published on 2019-10-22 by SAE International in United States
Hybrid electric vehicles (HEVs) represent a fundamental step in the global evolution towards transportation electrification. Nevertheless, they exhibit a remarkably complex design environments with respect to both traditional internal combustion engine vehicles and battery electric vehicles. Therefore, innovative and advanced design tools are crucially required to effectively handle the increased complexity of HEV development processes. This paper aims at providing a comprehensive overview of past and current advancements in HEV powertrain design methodologies. Subsequently, major simplifications and limits of current HEV design methodologies are detailed. The final part defines research challenges that need accomplishment to develop the next generation HEV architecture design tools. These particularly include the application of multi-fidelity modeling approaches, the embedded design of powertrain architecture and on-board control logic and the endorsement of multi-disciplinary optimization procedures. Resolving these issues may indeed remarkably enhance the widespread adoption of HEVs in the global vehicle market.
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Effect of Fuel Type and Tip Deposits on Gasoline Direct Injection Fuel Injector End of Injection Spray Characteristics

Ford Motor Co., Ltd.-Mark Meinhart
Michigan Technological University-Robert A. Schroeter, Jeffrey Naber, Seong-Young Lee
  • Technical Paper
  • 2019-01-2600
To be published on 2019-10-22 by SAE International in United States
There has been a great effort expended in identifying causes of Hydro-Carbon (HC) and Particulate Matter (PM) emissions resulting from poor spray preparation, leading to characterization of fueling behavior near nozzle. It has been observed that large droplet size is a primary contributor to HC and PM emission. Imaging technologies have been developed to understand the break-up and consistency of fuel spray. However, there appears to be a lack of studies of the spray characteristics at the End of Injection (EOI), near nozzle, in particular, the effect that tip deposits have on the EOI characteristics. Injector tip deposits are of interest due to their effect on not only fuel spray characteristics, but also their unintended effect on engine out emissions. Using a novel imaging technique to extract near nozzle fuel characteristics at EOI, the impact of tip deposits on Gasoline Direct Injection (GDI) fuel injectors at the EOI is being examined in this work. Additionally, the impact of the test fuel used will also be evaluated. This work will present the large influence of fuel…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Assessing the Combined Outcome of Rice Husk Nano Additive and Water Injection Method on the Performance, Emission and Combustion Characters of the Low Viscous Pine Oil in a Diesel Engine

Anna University Chennai-Mebin Samuel P, Devaradjane Gobalakichenin
University College of Engineering Villupuram-Gnanamoorthi V
  • Technical Paper
  • 2019-01-2604
To be published on 2019-10-22 by SAE International in United States
The research work intends to assess the need and improvement of using a low viscous bio oil, RH (Rice Husk) Nano Particles and water injection method in enhancing the performance, emission and combustion characters of a diesel engine. One of the major setbacks for using biodiesel was its higher viscosity. Hence, a low viscous oil (Pine oil) which doesn’t need transesterification process was used as a biofuel in this study. To further improve its characteristics a non-metallic Nano additive produced from rice husk was added at 3 proportions (50, 100, 200 ppm) and the optimal quantity was found as 100ppm based on the BTE (brake thermal efficiency) value of 30.2% at peak load condition. This efficiency value was accompanied by a considerable decrease in pollutants like HC (Hydrocarbon), Smoke, CO (Carbon monoxide). On the contrary NOx (Oxides of Nitrogen) emission was found to be increased for all load values. At peak load, when compared with diesel, pine oil with RH has 19.2% increased NOx emission. To reduce this increased NOx emission, water was injected along…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Eco-Driving Strategies for Different Powertrain Types and Scenarios

Argonne National Laboratory-Simeon Iliev, Eric Rask, Kevin Stutenberg, Michael Duoba
  • Technical Paper
  • 2019-01-2608
To be published on 2019-10-22 by SAE International in United States
Connected automated vehicles (CAVs) are quickly becoming a reality, and their potential ability to communicate with each other and the infrastructure around them has big potential impacts on future mobility systems. Perhaps one of the most important impacts could be on network wide energy consumption. A lot of research has already been performed on the topic of eco-driving and the potential fuel and energy consumption benefits for CAVs. However, most of the efforts to date have been based on simulation studies only, and have only considered conventional vehicle powertrains. In this study, experimental data is presented for the potential eco-driving benefits of two specific intersection approach scenarios and four different powertrain types. The two intersection approach scenarios considered in this study include an approach to a red light where coming to a complete stop is avoidable and one where a complete stop is determined necessary thanks to advance information from vehicle to infrastructure communication (V2I). The four powertrain types tested in this study include an advanced conventional vehicle, a conventional vehicle with idle stop-start capability,…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Research on the Development of China Intelligent Connected Vehicle Test and Demonstration Zone

CATARC-Yu Wang, Song Rui, Chenguang Yang, Bo Wang
  • Technical Paper
  • 2019-01-2612
To be published on 2019-10-22 by SAE International in United States
As an integrated product of the development of automobile, electronics, communication, internet and transportation, intelligent connected vehicle industrial development is gradually moving from technology research and development to the stage of mass production. In the commercialization process of industry, test evaluation and demonstration operation are the key links, which has been highly valued by the national ministry, local government and enterprise. In this context, this paper firstly summarizes the development status of China intelligent connected vehicle test and demonstration zone, and clarifies the institutions, operating entities and functional positioning of different test demonstration zone. Secondly, it analyzes the professional technical schemes such as the overall functional planning, the design of the automatic driving and network application scenarios, which may provide reference for the improvement and planning design of the test demonstration zone. After that, it takes the objective factors and subjective factors into account to build the characteristic image of the test demonstration zone, basing on the opinions and suggestions of the experts, scholars and enterprise representative in the industry. Finally, based on the above-mentioned…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

An IMPC based Parking Assistance System with Interactive Searching Function

FinitronX-Qianyu Ouyang, Xianzhe Jia
  • Technical Paper
  • 2019-01-2614
To be published on 2019-10-22 by SAE International in United States
This paper summarizes progress and outcome from our research projects on IMPC-based parking management system, including parking motion planning and control strategy, as well as a searching strategy for parking spot. To predict future parking parameters, we proposed a practical framework which integrates anticipatory techniques with a model predictive approach that robustly models the stochastic parking environment. The framework is able to take into account the interactions between vehicle subsystems, and can optimize trajectory under complex traffic patterns in real-world scenarios. Adaptive model predictive control is utilized to optimally minimize a cost function regarding performance, energy efficiency and drivability with regard to surrounding vehicle states. Dynamic programming was used to solve the control objective under multiple constraints, which yielded superior performance in comparison with convex programming. An original navigation system was developed for leading user to the parking spot in case of forgetting exact location, which is characterized in that swift location and path are generated by BLE-based sensor fusion. After successful parking action, the system beacons the parking location and transmits data to mobile…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Topology Optimized Design Methodology to Suit Additive Manufacturing Process

Cyient, Ltd.-Sai Deepika Vemula, B.Suman Naidu, Bassetti Chandrasheker, Krishna Mylapalli, Prithviraj Mondal, Lasheer Shareef Md
  • Technical Paper
  • 2019-01-2597
To be published on 2019-10-22 by SAE International in United States
The selection of component material and design is an important topic in manufacturing industry to produce sustainable and competitive products. Efficiency of the system is directly related to the weight of the components in that system. Topology optimization is an optimization method that employs mathematical tools to optimize material distribution in a part to be designed. It is the subfield of structural optimization process which is widely usable in component development process. Conventional machining, which can be described as subtractive, imposes constraints on design and can hence be described as design driven by technology. Additive manufacturing (AM), on the other hand, can be described as technology driven by design. It is possible to manufacture any complex shape without technological constraints using AM. The cons aspect of additive manufacturing is its adaptability to mass production due to its repeatability. Realization of topology optimization through additive manufacturing provides full design freedom for the design engineers. This paper discusses the application of topology optimization to parts designed for AM, highlighting the main practical difficulties and opportunities along with…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Feasibility of Multiple Piston Motion Control Approaches in a Free Piston Engine Generator

West Virginia University-Mehar Bade, Nigel Clark, Parviz Famouri, PriyaankaDevi Guggilapu
  • Technical Paper
  • 2019-01-2599
To be published on 2019-10-22 by SAE International in United States
The design optimization and control of Free Piston Linear Engine (FPLE) has been found to be difficult as each independent variable changes the dynamics with respect to time. These dynamics, in turn, alters the alternator and engine response to other governing variables. As a result, the FPLE system necessitates an energy balance control algorithm with high-speed dynamic response for stable operation and perhaps optimized system efficiency. The main objective of this control algorithm is to match the power generated by the engine to the power demanded by the alternator. This energy balance control is similar to the use of a governor to control the crankshaft rotational speed in a conventional crankshaft driven engine. In addition to that, when stiff springs are added to the FPLE system, the dynamics becomes more sinusoidal and more consistent with increasing spring stiffness. To understand the cycle-to-cycle variations, a comprehensive FPLE numerical model with a 1kW target electric power was developed in MATLAB®/Simulink. An FPLE system corresponding to that numerical model has been operated in the laboratory. In this numerical…