Control Of A Multicylinder Homogeneous Charge Compression Ignition Engine
DOWNLOAD
Download Control Of A Multicylinder Homogeneous Charge Compression Ignition Engine PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Control Of A Multicylinder Homogeneous Charge Compression Ignition Engine book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Control Of A Multicylinder Homogeneous Charge Compression Ignition Engine
DOWNLOAD
Author : William Lee Gans
language : en
Publisher:
Release Date : 2003
Control Of A Multicylinder Homogeneous Charge Compression Ignition Engine written by William Lee Gans and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
Closed Loop Control Of A Multicylinder Homogeneous Charge Compression Ignition Engine Using Fast Thermal Management And Ion Sensors
DOWNLOAD
Author : Parag Mehresh
language : en
Publisher:
Release Date : 2005
Closed Loop Control Of A Multicylinder Homogeneous Charge Compression Ignition Engine Using Fast Thermal Management And Ion Sensors written by Parag Mehresh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
Control And Robustness Analysis Of Homogeneous Charge Compression Ignition Using Exhaust Recompression
DOWNLOAD
Author : Hsien-Hsin Liao
language : en
Publisher: Stanford University
Release Date : 2011
Control And Robustness Analysis Of Homogeneous Charge Compression Ignition Using Exhaust Recompression written by Hsien-Hsin Liao and has been published by Stanford University this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
There has been an enormous global research effort to alleviate the current and projected environmental consequences incurred by internal combustion (IC) engines, the dominant propulsion systems in ground vehicles. Two technologies have the potential to improve the efficiency and emissions of IC engines in the near future: variable valve actuation (VVA) and homogeneous charge compression ignition (HCCI). IC engines equipped with VVA systems are proven to show better performance by adjusting the valve lift and timing appropriately. An electro-hydraulic valve system (EHVS) is a type of VVA system that possesses full flexibility, i.e., the ability to change the valve lift and timing independently and continuously, making it an ideal rapid prototyping tool in a research environment. Unfortunately, an EHVS typically shows a significant response time delay that limits the achievable closed-loop bandwidth and, as a result, shows poor tracking performance. In this thesis, a control framework that includes system identification, feedback control design, and repetitive control design is presented. The combined control law shows excellent performance with a root-mean-square tracking error below 40 [Mu]m over a maximum valve lift of 4 mm. A stability analysis is also provided to show that the mean tracking error converges to zero asymptotically with the combined control law. HCCI, the other technology presented in this thesis, is a combustion strategy initiated by compressing a homogeneous air-fuel mixture to auto-ignition, therefore, ignition occurs at multiple points inside the cylinder without noticeable flame propagation. The result is rapid combustion with low peak in-cylinder temperature, which gives HCCI improved efficiency and reduces NOx formation. To initiate HCCI with a typical compression ratio, the sensible energy of the mixture needs to be high compared to a spark ignited (SI) strategy. One approach to achieve this, called recompression HCCI, is by closing the exhaust valve early to trap a portion of the exhaust gas in the cylinder. Unlike a SI or Diesel strategy, HCCI lacks an explicit combustion trigger, as autoignition is governed by chemical kinetics. Therefore, the thermo-chemical conditions of the air-fuel mixture need to be carefully controlled for HCCI to occur at the desired timing. Compounding this challenge in recompression HCCI is the re-utilization of the exhaust gas which creates cycle-to-cycle coupling. Furthermore, the coupling characteristics can change drastically around different operating points, making combustion timing control difficult across a wide range of conditions. In this thesis, a graphical analysis examines the in-cylinder temperature dynamics of recompression HCCI and reveals three qualitative types of temperature dynamics. With this insight, a switching linear model is formulated by combining three linear models: one for each of the three types of temperature dynamics. A switching controller that is composed of three local linear feedback controllers can then be designed based on the switching model. This switching model/control formulation is tested on an experimental HCCI testbed and shows good performance in controlling the combustion timing across a wide range. A semi-definite program is formulated to find a Lyapunov function for the switching model/control framework and shows that it is stable. As HCCI is dictated by the in-cylinder thermo-chemical conditions, there are further concerns about the robustness of HCCI, i.e., the boundedness of the thermo-chemical conditions with uncertainty existing in the ambient conditions and in the engine's own characteristics due to aging. To assess HCCI's robustness, this thesis presents a linear parameter varying (LPV) model that captures the dynamics of recompression HCCI and possesses an elegant model structure that is more amenable to analysis. Based on this model, a recursive algorithm using convex optimization is formulated to generate analytical statements about the boundedness of the in-cylinder thermo-chemical conditions. The bounds generated by the algorithm are also shown to relate well to the data from the experimental testbed.
Modeling And Control Of Homogeneous Charge Compression Ignition Engines With High Dilution
DOWNLOAD
Author : Chia-Jui Chiang
language : en
Publisher:
Release Date : 2006
Modeling And Control Of Homogeneous Charge Compression Ignition Engines With High Dilution written by Chia-Jui Chiang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
Homogeneous Charge Compression Ignition Engines 2007
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2007
Homogeneous Charge Compression Ignition Engines 2007 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Internal combustion engines categories.
Characteristics And Control Of Low Temperature Combustion Engines
DOWNLOAD
Author : Rakesh Kumar Maurya
language : en
Publisher: Springer
Release Date : 2017-11-03
Characteristics And Control Of Low Temperature Combustion Engines written by Rakesh Kumar Maurya and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-03 with Technology & Engineering categories.
This book deals with novel advanced engine combustion technologies having potential of high fuel conversion efficiency along with ultralow NOx and particulate matter (PM) emissions. It offers insight into advanced combustion modes for efficient utilization of gasoline like fuels. Fundamentals of various advanced low temperature combustion (LTC) systems such as HCCI, PCCI, PPC and RCCI engines and their fuel quality requirements are also discussed. Detailed performance, combustion and emissions characteristics of futuristic engine technologies such as PPC and RCCI employing conventional as well as alternative fuels are analyzed and discussed. Special emphasis is placed on soot particle number emission characterization, high load limiting constraints, and fuel effects on combustion characteristics in LTC engines. For closed loop combustion control of LTC engines, sensors, actuators and control strategies are also discussed. The book should prove useful to a broad audience, including graduate students, researchers, and professionals Offers novel technologies for improved and efficient utilization of gasoline like fuels; Deals with most advanced and futuristic engine combustion modes such as PPC and RCCI; Comprehensible presentation of the performance, combustion and emissions characteristics of low temperature combustion (LTC) engines; Deals with closed loop combustion control of advanced LTC engines; State-of-the-art technology book that concisely summarizes the recent advancements in LTC technology. .
Nonlinear Model Predictive Control Of Combustion Engines
DOWNLOAD
Author : Thivaharan Albin Rajasingham
language : en
Publisher: Springer Nature
Release Date : 2021-04-27
Nonlinear Model Predictive Control Of Combustion Engines written by Thivaharan Albin Rajasingham and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-27 with Technology & Engineering categories.
This book provides an overview of the nonlinear model predictive control (NMPC) concept for application to innovative combustion engines. Readers can use this book to become more expert in advanced combustion engine control and to develop and implement their own NMPC algorithms to solve challenging control tasks in the field. The significance of the advantages and relevancy for practice is demonstrated by real-world engine and vehicle application examples. The author provides an overview of fundamental engine control systems, and addresses emerging control problems, showing how they can be solved with NMPC. The implementation of NMPC involves various development steps, including: • reduced-order modeling of the process; • analysis of system dynamics; • formulation of the optimization problem; and • real-time feasible numerical solution of the optimization problem. Readers will see the entire process of these steps, from the fundamentals to several innovative applications. The application examples highlight the actual difficulties and advantages when implementing NMPC for engine control applications. Nonlinear Model Predictive Control of Combustion Engines targets engineers and researchers in academia and industry working in the field of engine control. The book is laid out in a structured and easy-to-read manner, supported by code examples in MATLAB®/Simulink®, thus expanding its readership to students and academics who would like to understand the fundamental concepts of NMPC. Advances in Industrial Control reports and encourages the transfer of technology in control engineering. The rapid development of control technology has an impact on all areas of the control discipline. The series offers an opportunity for researchers to present an extended exposition of new work in all aspects of industrial control.
Hcci And Cai Engines For The Automotive Industry
DOWNLOAD
Author : H Zhao
language : en
Publisher: Elsevier
Release Date : 2007-08-02
Hcci And Cai Engines For The Automotive Industry written by H Zhao and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-08-02 with Technology & Engineering categories.
Homogeneous charge compression ignition (HCCI)/controlled auto-ignition (CAI) has emerged as one of the most promising engine technologies with the potential to combine fuel efficiency and improved emissions performance, offering reduced nitrous oxides and particulate matter alongside efficiency comparable with modern diesel engines. Despite the considerable advantages, its operational range is rather limited and controlling the combustion (timing of ignition and rate of energy release) is still an area of on-going research. Commercial applications are, however, close to reality.HCCI and CAI engines for the automotive industry presents the state-of-the-art in research and development on an international basis, as a one-stop reference work. The background to the development of HCCI / CAI engine technology is described. Basic principles, the technologies and their potential applications, strengths and weaknesses, as well as likely future trends and sources of further information are reviewed in the areas of gasoline HCCI / CAI engines; diesel HCCI engines; HCCI / CAI engines with alternative fuels; and advanced modelling and experimental techniques. The book provides an invaluable source of information for scientific researchers, R&D engineers and managers in the automotive engineering industry worldwide. - Presents the state-of-the-art in research and development on an international basis - An invaluable source of information for scientific researchers, R&D engineers and managers in the automotive engineering industry worldwide - Looks at one of the most promising engine technologies around
Functional Reverse Engineering Of Strategic And Non Strategic Machine Tools
DOWNLOAD
Author : Wasim Ahmed Khan
language : en
Publisher: CRC Press
Release Date : 2021-06-20
Functional Reverse Engineering Of Strategic And Non Strategic Machine Tools written by Wasim Ahmed Khan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-20 with Technology & Engineering categories.
This book describes capacity building in strategic and non-strategic machine tool technology. It includes machine building in sectors such as machine tools, automobiles, home appliances, energy, and biomedical engineering, along with case studies. The book offers guidelines for capacity building in academia, covering how to promote enterprises of functional reverse engineering enterprises. It also discusses machine tool development, engineering design, prototyping of strategic, and non-strategies machine tools, as well as presenting communication strategies and IoT, along with case studies. Professionals from the CNC (Computer Numeric Control) machine tools industry, industrial and manufacturing engineers, and students and faculty in engineering disciplines will find interest in this book.
Homogeneous Charge Compression Ignition Hcci
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2004
Homogeneous Charge Compression Ignition Hcci written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Internal combustion engines categories.