Estimation of Cylinder-Wise Combustion Features with Combined Processing of Engine Speed and Cylinder Pressure Regarding Torsional Deflections of the Crankshaft

Estimation of Cylinder-Wise Combustion Features with Combined Processing of Engine Speed and Cylinder Pressure Regarding Torsional Deflections of the Crankshaft PDF Author: Christoph Kallenberger
Publisher: Logos Verlag Berlin GmbH
ISBN: 3832520023
Category :
Languages : en
Pages : 194

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Book Description
Rising fuel prices, stricter emission standards, as well as the increasing demands from consumers for driving comfort, all motivate the rapid development and improvement of combustion engine control systems. New concepts, such as variable valve timing systems, downsizing in combination with supercharging systems and new injection systems bring significant advantages for engines, however they result in increased system complexity. In order to provide optimal operating conditions for these concepts, advanced control and diagnosis strategies are necessary. They require feedback information from the combustion chamber. The in-cylinder pressure has a close relationship to the thermodynamics of a combustion and, consequently, is suited to this purpose. In-cylinder pressure sensors are already widely used in today's research engine test beds. However, a fully-equipped engine with pressure sensors is too expensive for series production. This motivates this work to investigate a cost efficient approach using only one in-cylinder pressure sensor in combination with the engine speed sensor. The engine speed signal contains the cylinder-wise combustion information and is measured at the crankshaft. Torsional defections at the crankshaft distort the engine speed signal. This work shows how to compensate this effect in order to provide highly accurate combustion features for engine control and diagnosis.

Estimation of Cylinder-Wise Combustion Features with Combined Processing of Engine Speed and Cylinder Pressure Regarding Torsional Deflections of the Crankshaft

Estimation of Cylinder-Wise Combustion Features with Combined Processing of Engine Speed and Cylinder Pressure Regarding Torsional Deflections of the Crankshaft PDF Author: Christoph Kallenberger
Publisher: Logos Verlag Berlin GmbH
ISBN: 3832520023
Category :
Languages : en
Pages : 194

Get Book

Book Description
Rising fuel prices, stricter emission standards, as well as the increasing demands from consumers for driving comfort, all motivate the rapid development and improvement of combustion engine control systems. New concepts, such as variable valve timing systems, downsizing in combination with supercharging systems and new injection systems bring significant advantages for engines, however they result in increased system complexity. In order to provide optimal operating conditions for these concepts, advanced control and diagnosis strategies are necessary. They require feedback information from the combustion chamber. The in-cylinder pressure has a close relationship to the thermodynamics of a combustion and, consequently, is suited to this purpose. In-cylinder pressure sensors are already widely used in today's research engine test beds. However, a fully-equipped engine with pressure sensors is too expensive for series production. This motivates this work to investigate a cost efficient approach using only one in-cylinder pressure sensor in combination with the engine speed sensor. The engine speed signal contains the cylinder-wise combustion information and is measured at the crankshaft. Torsional defections at the crankshaft distort the engine speed signal. This work shows how to compensate this effect in order to provide highly accurate combustion features for engine control and diagnosis.

A Computational Study of In-cylinder Cold Starting Processes in a Diesel Engine

A Computational Study of In-cylinder Cold Starting Processes in a Diesel Engine PDF Author: Manuel A. Gonzalez D.
Publisher:
ISBN:
Category :
Languages : en
Pages : 472

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A Textbook of Production Technology (Manufacturing Processes)

A Textbook of Production Technology (Manufacturing Processes) PDF Author: P C Sharma
Publisher: S. Chand Publishing
ISBN: 8121911141
Category : Technology & Engineering
Languages : en
Pages : 821

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Book Description
The printing of the seventh edition of the book has provided the author with an opportunity to completely go through the text.Minor Additions and Improvements have been carried out,wherever needed.All the figure work has been redone on computer,with the result that all the figures are clear and sharp.The author is really thankful to M/s S.Chand & Company Ltd. for doing an excellent job in publishing the latest edition of the book.

Cylinder, Crown and Sheet Glass

Cylinder, Crown and Sheet Glass PDF Author: United States Tariff Commission
Publisher:
ISBN:
Category : Glass
Languages : en
Pages : 36

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Impingement of Cloud Droplets on a Cylinder and Procedure for Measuring Liquid-water Content and Droplet Sizes in Supercooled Clouds by Rotating Multicylinder Method

Impingement of Cloud Droplets on a Cylinder and Procedure for Measuring Liquid-water Content and Droplet Sizes in Supercooled Clouds by Rotating Multicylinder Method PDF Author: E. R. G. Eckert
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 330

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Combustion Engine Processes

Combustion Engine Processes PDF Author: Lester Clyde Lichty
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 680

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Fundamentals of Combustion Processes

Fundamentals of Combustion Processes PDF Author: Sara McAllister
Publisher: Springer Science & Business Media
ISBN: 1441979433
Category : Science
Languages : en
Pages : 315

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Book Description
Fundamentals of Combustion Processes is designed as a textbook for an upper-division undergraduate and graduate level combustion course in mechanical engineering. The authors focus on the fundamental theory of combustion and provide a simplified discussion of basic combustion parameters and processes such as thermodynamics, chemical kinetics, ignition, diffusion and pre-mixed flames. The text includes exploration of applications, example exercises, suggested homework problems and videos of laboratory demonstrations

Modeling Engine Spray and Combustion Processes

Modeling Engine Spray and Combustion Processes PDF Author: Gunnar Stiesch
Publisher: Springer Science & Business Media
ISBN: 3662087901
Category : Computers
Languages : en
Pages : 293

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Book Description
The utilization of mathematical models to numerically describe the performance of internal combustion engines is of great significance in the development of new and improved engines. Today, such simulation models can already be viewed as standard tools, and their importance is likely to increase further as available com puter power is expected to increase and the predictive quality of the models is constantly enhanced. This book describes and discusses the most widely used mathematical models for in-cylinder spray and combustion processes, which are the most important subprocesses affecting engine fuel consumption and pollutant emissions. The relevant thermodynamic, fluid dynamic and chemical principles are summarized, and then the application of these principles to the in-cylinder processes is ex plained. Different modeling approaches for the each subprocesses are compared and discussed with respect to the governing model assumptions and simplifica tions. Conclusions are drawn as to which model approach is appropriate for a specific type of problem in the development process of an engine. Hence, this book may serve both as a graduate level textbook for combustion engineering stu dents and as a reference for professionals employed in the field of combustion en gine modeling. The research necessary for this book was carried out during my employment as a postdoctoral scientist at the Institute of Technical Combustion (ITV) at the Uni versity of Hannover, Germany and at the Engine Research Center (ERC) at the University of Wisconsin-Madison, USA.

An Introduction to the Theory of Point Processes

An Introduction to the Theory of Point Processes PDF Author: D.J. Daley
Publisher: Springer Science & Business Media
ISBN: 0387955410
Category : Mathematics
Languages : en
Pages : 487

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Book Description
Point processes and random measures find wide applicability in telecommunications, earthquakes, image analysis, spatial point patterns, and stereology, to name but a few areas. The authors have made a major reshaping of their work in their first edition of 1988 and now present their Introduction to the Theory of Point Processes in two volumes with sub-titles Elementary Theory and Models and General Theory and Structure. Volume One contains the introductory chapters from the first edition, together with an informal treatment of some of the later material intended to make it more accessible to readers primarily interested in models and applications. The main new material in this volume relates to marked point processes and to processes evolving in time, where the conditional intensity methodology provides a basis for model building, inference, and prediction. There are abundant examples whose purpose is both didactic and to illustrate further applications of the ideas and models that are the main substance of the text.

Tooling Processes in the Manufacture of a Four Cylinder Gas Motor

Tooling Processes in the Manufacture of a Four Cylinder Gas Motor PDF Author: D. F. Purdy
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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