Results 221 to 230 of about 15,498 (265)
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Mean Value Engine Modelling of an SI Engine with EGR
SAE Technical Paper Series, 1999<div class="htmlview paragraph">Mean Value Engine Models (MVEMs) are simplified, dynamic engine models which are physically based. Such models are useful for control studies, for engine control system analysis and for model based engine control systems. Very few published MVEMs have included the effects of Exhaust Gas Recirculation (EGR).
Michael Fons +5 more
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Differences in Efficiency between SI Engine and Diesel Engine
MTZ worldwide, 2009For discussing the differences in efficiency between a SI engine and a diesel engine in the vehicle a detailed split of loss calculation is used normally as method. The comparison of engine concepts at identical operating points gives only limited information.
Raffael Kuberczyk +2 more
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Liquid Gasoline Behavior in the Engine Cylinder of a SI Engine
SAE Technical Paper Series, 1994<div class="htmlview paragraph">The liquid fuel entry into the cylinder and its subsequent behavior through the combustion cycle were observed by a high speed CCD camera in a transparent engine. The videos were taken with the engine firing under cold conditions in a simulated start-up process, at 1,000 RPM and intake manifold pressure of 0.5 bar.
Younggy Shin +2 more
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SI Engine Controls and Mean Value Engine Modelling
SAE Technical Paper Series, 1991<div class="htmlview paragraph">Many existing classical electronic control systems (speed-throttle, speed-density, MAF (mass air flow)) are based on quasistatic engine models and static measured engine maps. They are thus time consuming to adapt to new engine types, are sensitive to dynamic sensor errors and in general have undesirable dynamic ...
Elbert Hendricks, Spencer C. Sorenson
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Engine Capability Prediction for SI Engine Fueled With Syngas
Volume 1: Large Bore Engines; Fuels; Advanced Combustion, 2015There are increasing interests in converting solid waste or lignocellulosic biomass into gaseous fuels and using reciprocating internal combustion engine to generate electricity. A widely used technique is gasification. Gasification is a process where the solid fuel and air are introduced to a partial oxidation environment, and generate combustible ...
Hui Xu, Leon A. LaPointe
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The Application of Virtual Engine in a PSA 1.41 SI Engine
SAE Technical Paper Series, 2010<div class="section abstract"><div class="htmlview paragraph">Nowadays, due to the high competitiveness in the automotive market, the car manufacturers and the engine developers are concentrating as many efforts as possible in order to diminish the lead-time to production and to promote cost reductions of their engine developments.</div ...
Walter Zottin +4 more
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SI Units in Geotechnical Engineering
Geotechnical Testing Journal, 1980Abstract A brief description is presented of the International System of Units (SI) as it might be applied to geotechnical engineering. Base as well as derived SI units that are of interest to geotechnical engineers are described in detail, and conversion factors for units in common usage are given. A few examples of conversions are also
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Decomposition of Turbulent Velocity Fields in an SI Engine
Flow, Turbulence and Combustion, 2002zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Erdil A., Kodal A., Aydin K.
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Nonlinear observer design for turbocharger in a SI engine
2013 American Control Conference, 2013Estimation of major turbocharger variables is essential for proper control and monitoring of a turbocharged engine. This work presents a novel algorithm to estimate turbocharger rotator speed, air temperature downstream a compressor and flow rate over the compressor using mean value models of engine subsystems.
Rasoul Salehi +3 more
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The Effects of Crevices on the Engine-Out Hydrocarbon Emissions in SI Engines
SAE Technical Paper Series, 1994<div class="htmlview paragraph">To understand the effects of crevices on the engine-out hydrocarbon emissions, a series of engine experiments was carried out with different piston crevice volumes and with simulated head gasket crevices. The engine-out HC level was found to be modestly sensitive to the piston crevice size in both the warmed-up and
Kyoungdoug Min +2 more
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