Inverse adaptive air-fuel ratio control in spark ignition engines

The problem of air-fuel ratio (AFR) stabilization at the stoichiometric level is addressed in the paper. Two solutions of this problem based on the inverse dynamics principle are proposed. The first one consists in building empirical model of the engine, its on-line identification and further inversion. The second approach assumes building inverse model of the engine initially and then its identification. The both models - direct and inverse - are presented by grey boxes with physically-inspired input functions and structures. The models are used for the derivation of two feedforward controls with the parameters tuned online. The feedforwards with the estimated parameters provide the compensation of plant uncertainties, nonlinear dynamics and the delay of AFR measurement.

[1]  Jeremy Worm.  The Effect of Exhaust Variable Cam Phaser Transients on Equivalence Ratio Control in an SI 4 Stroke Engine , 2005 .

[2]  J. K. Hedrick,et al.  Modeling and Validation of Automotive Engines for Control Algorithm Development , 1992 .

[3]  J. David Powell,et al.  Air-fuel ratio control in spark-ignition engines using estimation theory , 1995, IEEE Trans. Control. Syst. Technol..

[4]  B. Widrow,et al.  Adaptive inverse control , 1987, Proceedings of 8th IEEE International Symposium on Intelligent Control.

[5]  Denis V. Efimov,et al.  Application of interval observers to estimation and control of air-fuel ratio in a direct injection engine , 2015, 2015 American Control Conference (ACC).

[6]  L. Strazzullo,et al.  Continuously Variable Cam Phaser Optimization for Spark Ignition Gasoline Engine: A Computational Methodology Approach , 2005 .

[7]  Vadim I. Utkin,et al.  Automotive engine diagnosis and control via nonlinear estimation , 1998 .

[8]  Anna G. Stefanopoulou,et al.  Variable camshaft timing engine control , 2000, IEEE Trans. Control. Syst. Technol..

[9]  Denis Efimov,et al.  Supervisory control of air–fuel ratio in spark ignition engines , 2014 .

[10]  John B. Heywood,et al.  Internal combustion engine fundamentals , 1988 .

[11]  Hosein Javaherian,et al.  Injection engine as a control object. II. Problems of automatic control of the engine , 2010 .

[12]  Hans P. Geering,et al.  Model-reference adaptive A/F-ratio control in an SI engine based on Kalman-filtering techniques , 1995, Proceedings of 1995 American Control Conference - ACC'95.

[13]  Derong Liu,et al.  Neural Sliding-Mode Control of Engine Torque , 2008 .

[14]  R. Turin,et al.  Volumetric Efficiency Model for Variable Cam-Phasing and Variable Valve Lift Applications , 2008 .

[15]  B. Powell,et al.  A dynamic model for automotive engine control analysis , 1979, 1979 18th IEEE Conference on Decision and Control including the Symposium on Adaptive Processes.

[16]  Myoungho Sunwoo,et al.  Feedback Error Learning Neural Networks for Air-to-Fuel Ratio Control in SI Engines , 2003 .

[17]  J. K. Hedrick,et al.  Automotive Powertrain Modeling for Control , 1989 .

[18]  E.J.P. Rutten,et al.  Mean value modeling of spark ignition engines , 1993 .

[19]  Christopher Onder,et al.  Model-Based Multivariable Speed and Air-to-Fuel Ratio Control of an Sl Engine , 1993 .

[20]  J. Karl Hedrick,et al.  Automotive Engine Modeling for Real Time Control Application , 1987, 1987 American Control Conference.

[21]  Ilya Kolmanovsky,et al.  Automotive Powertrain Control — A Survey , 2006 .

[22]  Dmitry N. Gerasimov,et al.  Data driven inverse-model control of SI engines , 2011, Proceedings of the 2011 American Control Conference.

[23]  Sergey A. Kolyubin,et al.  Two-channel adaptive hybrid control of the air-to-fuel ratio and torque of automobile engines , 2012 .

[24]  Bernard Widrow.  Adaptive inverse control , 1990, Defense, Security, and Sensing.

[25]  Huei Peng,et al.  Transient air-fuel ratio H/sub /spl infin// preview control of a drive-by-wire internal combustion engine , 2001, Proceedings of the 2001 American Control Conference. (Cat. No.01CH37148).

[26]  Dingli Yu,et al.  RBF-BASED FEEDFORWARD-FEEDBACK CONTROL FOR AIR-FUEL RATIO OF SI ENGINES , 2007 .

[27]  V. K. Jones,et al.  Adaptive Air-Fuel Ratio Control of a Spark-Ignition Engine , 1994 .

[28]  Ali Ghaffari,et al.  Adaptive Fuzzy Control for Air-Fuel Ratio of Automobile Spark Ignition Engine , 2008 .

[29]  Chen-Fang Chang,et al.  Observer-based air fuel ratio control , 1998 .

[30]  Denis Efimov,et al.  Injection engine as a control object. I. Schematic diagram of the engine and synthesis of a mathematical model , 2010 .

[31]  James C. Peyton Jones,et al.  An Adaptive Delay-Compensated PID Air Fuel Ratio Controller , 2007 .

[32]  Gianfranco Rizzo,et al.  Information Based Selection of Neural Networks Training Data for S.I. Engine Mapping , 2001 .

[33]  D. N. Gerasimov,et al.  Neural network data-driven engine torque and air-fuel ratio control , 2012, 2012 16th IEEE Mediterranean Electrotechnical Conference.

[34]  H. Javaherian,et al.  Switching control of air-fuel ratio in spark ignition engines , 2010, Proceedings of the 2010 American Control Conference.