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Development And Design Of Closed Loop Adaptive Fuel Control For Spark Ignition Engines
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Book Synopsis Development and Design of Closed Loop Adaptive Fuel Control for Spark Ignition Engines by : Brian Joseph Lewis
Download or read book Development and Design of Closed Loop Adaptive Fuel Control for Spark Ignition Engines written by Brian Joseph Lewis and published by . This book was released on 1999 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Adaptive Model Based Combustion Phasing Control for Multi Fuel Spark Ignition Engines by : Baitao Xiao
Download or read book Adaptive Model Based Combustion Phasing Control for Multi Fuel Spark Ignition Engines written by Baitao Xiao and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: This research describes a physics-based control-oriented feed-forward model, combined with cylinder pressure feedback, to regulate combustion phasing in a spark-ignition engine operating on an unknown mix of fuels. This research may help enable internal combustion engines that are capable of on-the-fly adaptation to a wide range of fuels. These engines could; (1) facilitate a reduction in bio-fuel processing, (2) encourage locally-appropriate bio-fuels to reduce transportation, (3) allow new fuel formulations to enter the market with minimal infrastructure, and (4) enable engine adaptation to pump-to-pump fuel variations. These outcomes will help make bio-fuels cost-competitive with other transportation fuels, lessen dependence on traditional sources of energy, and reduce greenhouse gas emissions from automobiles; all of which are pivotal societal issues. Spark-ignition engines are equipped with a large number of control actuators to satisfy fuel economy targets and maintain regulated emissions compliance. The increased control flexibility also allows for adaptability to a wide range of fuel compositions, while maintaining efficient operation when input fuel is altered. Ignition timing control is of particular interest because it is the last control parameter prior to the combustion event, and significantly influences engine efficiency and emissions. Although Map-based ignition timing control and calibration routines are state of art, they become cumbersome when the number of control degrees of freedom increases are used in the engine. The increased system complexity motivates the use of model-based methods to minimize product development time and ensure calibration flexibility when the engine is altered during the design process. A closed loop model based ignition timing control algorithm is formulated with: 1) a feed forward fuel type sensitive combustion model to predict combustion duration from spark to 50% mass burned; 2) two virtual fuel property observers for octane number and laminar flame speed feedback; 3) an adaptive combustion phasing target model that is able to self-calibrate for wide range of fuel sources input. The proposed closed loop algorithm is experimentally validated in real time on the dynamometer. Satisfactory results are observed and conclusions are made that the closed loop approach is able to regulate combustion phasing for multi fuel adaptive SI engines.
Book Synopsis Spark Ignition Engine Modeling and Control System Design by : Amir-Mohammad Shamekhi
Download or read book Spark Ignition Engine Modeling and Control System Design written by Amir-Mohammad Shamekhi and published by CRC Press. This book was released on 2023-02-22 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a step-by-step guide to the engine control system design, providing case studies and a thorough analysis of the modeling process using machine learning, and model predictive control (MPC). Covering advanced processes alongside the theoretical foundation, MPC enables engineers to improve performance in both hybrid and non-hybrid vehicles. Control system improvement is one of the major priorities for engineers seeking to enhance an engine. Often possible on a low budget, substantial improvements can be made by applying cutting-edge methods, such as artificial intelligence when modeling engine control system designs and using MPC. This book presents approaches to control system improvement at mid, low, and high levels of control. Beginning with the model-in-the-loop hierarchical control design of ported fuel injection SI engines, this book focuses on optimal control of both transient and steady state and also discusses hardware-in-the-loop. The chapter on low-level control discusses adaptive MPC and adaptive variable functioning, as well as designing a fuel injection feed-forward controller. At mid-level control, engine calibration maps are discussed, with consideration of constraints such as limits on pollutant emissions. Finally, the high-level control methodology is discussed in detail in relation to transient torque control of SI engines. This comprehensive yet clear guide to control system improvement is an essential read for any engineer working in automotive engineering and engine control system design.
Book Synopsis Development of Closed Loop Electronically Controlled System for Spark Ignition of Natural Gas Engines by : J. Edsell
Download or read book Development of Closed Loop Electronically Controlled System for Spark Ignition of Natural Gas Engines written by J. Edsell and published by . This book was released on 1993 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Closed Loop Fuel Injection System for Spark Ignition Engines by : Peter Jeffrey Blake
Download or read book A Closed Loop Fuel Injection System for Spark Ignition Engines written by Peter Jeffrey Blake and published by . This book was released on 1979 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design and Development of an Electronically Controlled, Air Assisted, Fuel Injection System for Reducing Cold Start Emissions from a Methanol and Gasoline Fueled Spark Ignition Engine by : Bradford Klement Otto Palmer
Download or read book Design and Development of an Electronically Controlled, Air Assisted, Fuel Injection System for Reducing Cold Start Emissions from a Methanol and Gasoline Fueled Spark Ignition Engine written by Bradford Klement Otto Palmer and published by . This book was released on 2000 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Adaptive Torque-feedback Based Engine Control by : Steven Clugston
Download or read book Adaptive Torque-feedback Based Engine Control written by Steven Clugston and published by . This book was released on 2012 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the 1999 Fall Technical Conference of the ASME Internal Combustion Engine Division: New developments in engine design, controls and DI sprays by : American Society of Mechanical Engineers. Internal Combustion Engine Division. Technical Conference
Download or read book Proceedings of the 1999 Fall Technical Conference of the ASME Internal Combustion Engine Division: New developments in engine design, controls and DI sprays written by American Society of Mechanical Engineers. Internal Combustion Engine Division. Technical Conference and published by . This book was released on 1999 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Closed Loop Control of Automotive Engines by : Stanford University. Department of Aeronautics and Astronautics
Download or read book Closed Loop Control of Automotive Engines written by Stanford University. Department of Aeronautics and Astronautics and published by . This book was released on 1978 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Potential of Spark Ignition Engine, Electronic Engine and Transmission Control by : Frank J. Garofalo
Download or read book Potential of Spark Ignition Engine, Electronic Engine and Transmission Control written by Frank J. Garofalo and published by . This book was released on 1980 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A STUDY OF MODEL-BASED CONTROL STRATEGY FOR A GASOLINE TURBOCHARGED DIRECT INJECTION SPARK IGNITED ENGINE by :
Download or read book A STUDY OF MODEL-BASED CONTROL STRATEGY FOR A GASOLINE TURBOCHARGED DIRECT INJECTION SPARK IGNITED ENGINE written by and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : To meet increasingly stringent fuel economy and emissions legislation, more advanced technologies have been added to spark-ignition (SI) engines, thus exponentially increase the complexity and calibration work of traditional map-based engine control. To achieve better engine performance without introducing significant calibration efforts and make the developed control system easily adapt to future engines upgrades and designs, this research proposes a model-based optimal control system for cycle-by-cycle Gasoline Turbocharged Direct Injection (GTDI) SI engine control, which aims to deliver the requested torque output and operate the engine to achieve the best achievable fuel economy and minimum emission under wide range of engine operating conditions. This research develops a model-based ignition timing prediction strategy for combustion phasing (crank angle of fifty percent of the fuel burned, CA50) control. A control-oriented combustion model is developed to predict burn duration from ignition timing to CA50. Using the predicted burn duration, the ignition timing needed for the upcoming cycle to track optimal target CA50 is calculated by a dynamic ignition timing prediction algorithm. A Recursive-Least-Square (RLS) with Variable Forgetting Factor (VFF) based adaptation algorithm is proposed to handle operating-point-dependent model errors caused by inherent errors resulting from modeling assumptions and limited calibration points, which helps to ensure the proper performance of model-based ignition timing prediction strategy throughout the entire engine lifetime. Using the adaptive combustion model, an Adaptive Extended Kalman Filter (AEKF) based CA50 observer is developed to provide filtered CA50 estimation from cyclic variations for the closed-loop combustion phasing control. An economic nonlinear model predictive controller (E-NMPC) based GTDI SI engine control system is developed to simultaneously achieve three objectives: tracking the requested net indicated mean effective pressure (IMEPn), minimizing the SFC, and reducing NOx emissions. The developed E-NMPC engine control system can achieve the above objectives by controlling throttle position, IVC timing, CA50, exhaust valve opening (EVO) timing, and wastegate position at the same time without violating engine operating constraints. A control-oriented engine model is developed and integrated into the E-NMPC to predict future engine behaviors. A high-fidelity 1-D GT-POWER engine model is developed and used as the plant model to tune and validate the developed control system. The performance of the entire model-based engine control system is examined through the software-in-the-loop (SIL) simulation using on-road vehicle test data.
Book Synopsis EVALUATION OF SENSORS AND STRATEGIES FOR CLOSED LOOP COMBUSTION CONTROL OF A GASOLINE SPARK-IGNITION TURBOCHARGED DIRECT INJECTION ENGINE by :
Download or read book EVALUATION OF SENSORS AND STRATEGIES FOR CLOSED LOOP COMBUSTION CONTROL OF A GASOLINE SPARK-IGNITION TURBOCHARGED DIRECT INJECTION ENGINE written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : Fuel economy has become one of the top design parameters of modern passenger cars and light trucks. Recent CAFE regulations have required manufactures to push the fuel economy of US passenger vehicles under 8600 lb GVW beyond the limit of conventional technology [1]. In order to continue to meet the increasing requirements for fuel economy while still satisfying other design criteria including safety, tailpipe emissions, performance, and comfort, more expensive technology must be integrated into each vehicle specifically the powertrain. Diminishing returns of the payback period of fuel savings vs. higher initial vehicle cost has now become longer than the life of the vehicle. Because of this, the dollar per fuel economy benefit of each technology is being closely examined and investigated [1]. In this thesis, the potential fuel economy benefit of a technology was studied for feasibility and potential; the technology was on-board cylinder pressure sensors and the data available from them. Two low-cost cylinder pressure sensor types from two suppliers were evaluated and analyzed and compared to a laboratory sensor of known performance characteristics. Further the benefits from real-time cylinder pressure feedback capable of improving part load combustion phasing, combustion variability management were studied. Two areas of fuel consumption reduction which this thesis concentrates on are the improvement of locating spark advance through combustion duration feedback, and the extension of the dilute limit through combustion cycle stability measurement during transient operating conditions. By allowing the engine to run at more dilute conditions and locating spark advance to produce combustion durations closer to MBT, lower fuel consumption is possible. Vehicle EPA drive cycle data was used to examine areas of operation that were not operating at maximum efficiency to determine the fuel economy benefit that could be achieved through the availability of cylinder pressure data in terms of burn location and running dilute/lean. Methods to improve fuel economy in the engine such as dilution of air charge can have a negative effect on combustion stability [2]. In a laboratory environment combustion stability is measured during steady state operation using cylinder pressure data typically using a 100 cycle moving window for averaging. Transient engine operating conditions present in every drive cycle do not allow for calculating combustion stability in this way because it cannot be assumed that even two cycles are at the same operating conditions. If cylinder pressure sensor data were available on a production vehicle, the ability to measure combustion stability would exist but the transient measurement of combustion stability poses challenges which are discussed. A metric is developed to make comparable measurements in real time and the outcomes and benefits available from these measurements are evaluated.
Book Synopsis Introduction to Modeling and Control of Internal Combustion Engine Systems by : Lino Guzzella
Download or read book Introduction to Modeling and Control of Internal Combustion Engine Systems written by Lino Guzzella and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internal combustion engines still have a potential for substantial improvements, particularly with regard to fuel efficiency and environmental compatibility. These goals can be achieved with help of control systems. Modeling and Control of Internal Combustion Engines (ICE) addresses these issues by offering an introduction to cost-effective model-based control system design for ICE. The primary emphasis is put on the ICE and its auxiliary devices. Mathematical models for these processes are developed in the text and selected feedforward and feedback control problems are discussed. The appendix contains a summary of the most important controller analysis and design methods, and a case study that analyzes a simplified idle-speed control problem. The book is written for students interested in the design of classical and novel ICE control systems.
Book Synopsis Closed Loop Control of Spark Advance and Air/fuel Ratio in an Internal Combustion Engine by : Kent William Randall
Download or read book Closed Loop Control of Spark Advance and Air/fuel Ratio in an Internal Combustion Engine written by Kent William Randall and published by . This book was released on 1977 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ERDA Research Abstracts by : United States. Energy Research and Development Administration
Download or read book ERDA Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976-05 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
