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Automotive Engineering Commons

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Articles 1 - 6 of 6

Full-Text Articles in Automotive Engineering

Combustion Characteristics Of Late Injected Cng In A Spark Ignition Engine Under Lean Operating Condition, Ftwi Yohaness Hagos, A. Rahsid Abd Aziz, Shaharin A. Sulaiman Dec 2012

Combustion Characteristics Of Late Injected Cng In A Spark Ignition Engine Under Lean Operating Condition, Ftwi Yohaness Hagos, A. Rahsid Abd Aziz, Shaharin A. Sulaiman

Ftwi Yohaness Hagos

Lean combustion strategy is used as a tool in the reduction of greenhouse gas emission in a natural gas fuelled engines. It also increases the thermal efficiency of the combustion. In this study, late injection and stratification effect of lean charge CNG combustion in a four stroke direct injection spark ignited engine was experimentally investigated. The fuel injection is kept at 90° Crank Angle (CA) Before Top Dead Center (BTDC) and the ignition timing at 28° CA BTDC at wide open throttle. Results from this study demonstrate that Indicated Mean Effective Pressure (IMEP), it's Coefficient Of Variation (COV), in ...


Development Of A Supervisory Control Unit For A Series Plug-In Hybrid Electric Vehicle, Brian Neal Harries Oct 2012

Development Of A Supervisory Control Unit For A Series Plug-In Hybrid Electric Vehicle, Brian Neal Harries

Dissertations and Theses

A Series PHEV was chosen, as ERAU's entry into EcoCAR2 through a multidisciplinary architecture selection process. The series architecture was chosen for its mechanical feasibility, consumer acceptability and its performance on energy consumption simulations. The Series PHEV architecture was modeled using Matlab, Simulink, and dSPACE ASM tools, to create a plant model for controller development. A supervisory controller was developed to safely control the interactions between powertrain components. The supervisory control unit was tested using SIL and HIL methodologies. The supervisory controller was developed with an emphasis on fault detection and mitigation for safety critical systems. A power management ...


Modeling, Identification, Validation And Control Of A Hybrid Maglev Ball System, Ahmed Elhussein E. Mekky Jul 2012

Modeling, Identification, Validation And Control Of A Hybrid Maglev Ball System, Ahmed Elhussein E. Mekky

Mechanical & Aerospace Engineering Theses & Dissertations

In this thesis, the electrodynamics of a single axis hybrid electromagnetic suspension Maglev system was modeled and validated by applying it to a single axis hybrid maglev ball experiment. By exploring its linearized model, it was shown that the single axis hybrid Maglev ball has inherently unstable dynamics. Three control scenarios were explored based on the linearized model; (1) Proportional, Deferential (PD) control, (2) Proportional, Deferential, Integral (PID) and (3) PID controller with pre-filtering. This thesis has shown that a PID controller with a pre-filtering technique can stabilize such a system and provide a well-controlled response.

A parametric system identification ...


The Engineering Process For The Design Of A Motorcycle Chassis And Suspension, Derek J. Noce May 2012

The Engineering Process For The Design Of A Motorcycle Chassis And Suspension, Derek J. Noce

Dissertations and Theses

The thesis objective is to define and establish an engineering process for the design of a modern motorcycle chassis and suspension. The engineering process focuses on the interdisciplinary fields of engineering dealing with design and structural optimization. Specialized software, such as Motorcycle Kinematics, MATLAB, CATIA, HEEDS Professional, and NASTRAN are utilized. Motorcycle Kinematics is used to set up the preliminary motorcycle geometry, and MATLAB is a used to analyze the kinematics and stability of the motorcycle based on this geometry. CATIA (Computer Aided Three-Dimensional Interactive Application) is used to graphically illustrate the geometry of the motorcycle in three dimensional space ...


A Critical Review On Corrosion Of Compression Ignition (Ci) Engine Parts By Biodiesel And Biodiesel Blends And Its Inhibition, B. Singh, John Korstad, Y. C. Sharma Jan 2012

A Critical Review On Corrosion Of Compression Ignition (Ci) Engine Parts By Biodiesel And Biodiesel Blends And Its Inhibition, B. Singh, John Korstad, Y. C. Sharma

College of Science and Engineering Faculty Research and Scholarship

This paper reviews the effects of corrosion on the engine parts that come in contact with a newly developed biodiesel fuel and its petrodiesel blend. Copper, aluminum, copper alloys (bronze), and elastomers caused significant levels of corrosiveness in biodiesel and biodiesel blend as opposed to low corrosion with petrodiesel. Specimens of stainless steel showed significant resistance to corrosion in biodiesel samples as compared to copper, aluminum, and copper alloys, but the level of corrosion was still higher than that in petrodiesel. Common methods adopted for measurement of corrosion include weight loss through static emersion tests, and electrochemical techniques by electrochemical ...


Development Of A Modular Dual Engine Hybrid Electric Vehicle Simulation Model, Kenan Baltaci Jan 2012

Development Of A Modular Dual Engine Hybrid Electric Vehicle Simulation Model, Kenan Baltaci

Theses and Dissertations @ UNI

Depleting resources of fossil fuel, climate change impacts, high oil prices, and strict emission requirements are leading to the research on efficient, environmentally friendly, and lowered fossil fuel dependent solutions in the transportation field. While a number of studies used computer modeling and simulation tools to investigate hybrid electric vehicles (HEVs), very few attempted to model and simulate a dual-engine hybrid vehicle. Designing a vehicle engine to meet energy needs in the fully loaded condition is not an optimal solution for manufacturers and customers. The larger the engine, the higher the manufacturing costs for companies, and higher fuel consumption for ...