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Full-Text Articles in Automotive Engineering

Tribological Study On Plasma Electrolytic Oxidation Treatment In Al-Si Alloys For Engine Application, Hoda Eiliat Jul 2015

Tribological Study On Plasma Electrolytic Oxidation Treatment In Al-Si Alloys For Engine Application, Hoda Eiliat

Electronic Theses and Dissertations

Automotive industry strives to reach an optimum level of fuel economy. This can be achieved by overcoming two impacting factors on fuel consumption: weight and friction force. This research contributes to reduce both. The proposed surface treatment can replace cylinder liners of hypoeutectic aluminum silicon alloy engine blocks with a thin layer of ceramic oxide composed of alpha and gamma phases of Al2O3 and mullite. The coatings are achieved in an aqueous electrolytic bath with current densities of 0.1 to 0.2 A/cm2. Coatings produced in silicate based solutions have shown good adaptability to the counter surface with ...


Simulation Of A Regenerative Electromagnetic Vehicle Suspension, Fabio Tarantini Jan 2015

Simulation Of A Regenerative Electromagnetic Vehicle Suspension, Fabio Tarantini

Electronic Theses and Dissertations

In the last two decades, legislation that regulates carbon dioxide emissions are getting more and more stringent. In order to meet these regulations, fuel efficiency must be increased. This can be possible using devices that recover otherwise wasted energy. In this study, an electromagnetic regenerative shock absorber is analyzed. The device is capable of converting the vibrational energy, usually wasted as heat in conventional dampers, into electrical energy. The objective of this work is to develop a MatlabĀ® model of the system in order to evaluate the gain in terms of harvested energy. The dynamic performance of the selected regenerative ...


Numerical Investigation Of Steady-State And Transient Operations Of A Turbocharged Si Engine With Electric Supercharger, Ivan Filidoro Jan 2015

Numerical Investigation Of Steady-State And Transient Operations Of A Turbocharged Si Engine With Electric Supercharger, Ivan Filidoro

Electronic Theses and Dissertations

Gasoline engine downsizing, associated with turbocharging, has proved to be one of the most effective ways to reduce specific fuel consumption of the internal combustion engine. This tendency introduces a number of technical challenges, such as reduced steady-state low speed torque, delay in transient response caused by the turbocharger, combustion limitations due to propensity to knock. Advanced boosting systems can succeed in overcoming these issues; of particular interest is the solution featuring a second, electrically-driven, compressor in series with the turbocharger compressor. The engine considered in this work is a four-cylinder inline, turbocharged and electrically supercharged engine by FCA. In ...


Assessment Of The Automotive Stirling Engine, David A. Lawn Jan 2010

Assessment Of The Automotive Stirling Engine, David A. Lawn

Major Papers

The most tantalizing possibility of realizing the efficiency of the 'theoretical' Stirling thermodynamic cycle applied through a practical automotive engine has led to several attempts to develop such a power unit not long after the conclusion of the second world war. These efforts became much more accelerated and of greater interest in the late1970's. With the development of newer exotic alloys and polymers to meet a number of demands and mainly driven by the aerospace and computer hardware industries, never before seen advances have been made achieving stronger, less costly and ease of manufacturing to once difficult and with ...


A Lumped Parameter Model For The Filling Of An Automotive Fuel Tank, Shelagh Fackrell Jan 2001

A Lumped Parameter Model For The Filling Of An Automotive Fuel Tank, Shelagh Fackrell

Electronic Theses and Dissertations

One of the problems facing automotive fuel tank designers today is that of premature shut-off during the filling process. Premature shut-off occurs when the fuel dispensing nozzle stops before the automotive fuel tank is completely full. A simplified lumped parameter model has been developed in order to predict the pressures and flow rates associated with fuel tank filling.