Model-based cold-start speed control scheme for spark ignition engines

This paper presents a model-based control scheme to the cold-start speed control in spark ignition (SI) engines. The multi-variable control algorithm is developed with the purpose of improving the transient performance of the starting engine speed: the control inputs are the fuel injection, the throttle and the spark advance (SA), while the engine speed and the air mass flow rate are the measured signals. The fuel injection is performed with a dual sampling rate system: the cycle-based fuel injection command is individually adjusted for each cylinder by using a TDC (top dead center)-based air charge estimation. The desired performance for speed regulation is achieved by using a coordinated control of SA and throttle operation. The speed error convergence of the closed loop system is proved for simplified, second-order model with a time-delay, and the robustness with respect to parameter uncertainties is investigated. The performance and the robustness with respect to modeling uncertainties of the proposed control scheme are tested using an industrial engine simulator with six cylinders.

[1]  S. Thompson,et al.  A comparison of idle speed control schemes , 2000 .

[2]  Domenic A. Santavicca,et al.  The Effects of Engine Speed and Injection Pressure Transients on Gasoline Direct Injection Engine Cold Start , 2002 .

[3]  Liguang Li,et al.  Cold start characteristics at low temperatures based on the first firing cycle in an LPG engine , 2007 .

[4]  Harutoshi Ogai,et al.  The cold starting control of engine using Large scale database-based Online Modelling , 2008 .

[5]  Fuquan Zhao.  Technologies for Near-Zero-Emission Gasoline-Powered Vehicles , 2006 .

[6]  Lino Guzzella,et al.  Introduction to Modeling and Control of Internal Combustion Engine Systems , 2004 .

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

[8]  Hiromitsu Ohmori,et al.  Starting Speed Control of SI Engine Based on Extremum Seeking Control , 2008 .

[9]  Sarah K. Spurgeon,et al.  Automotive engine speed control: A robust nonlinear control framework , 2001 .

[10]  Yoshihisa Iwaki,et al.  A Quick Warm-Up System During Engine Start-Up Period Using Adaptive Control of Intake Air and Ignition Timing , 2000 .

[11]  C. F. Aquino.  Transient A/F Control Characteristics of the 5 Liter Central Fuel Injection Engine , 1981 .

[12]  Nicolas Petit,et al.  Motion planning for experimental air path control of a variable-valve-timing spark ignition engine , 2009 .

[13]  A. Stotsky,et al.  Variable Structure Control of Engine Idle Speed With Estimation of Unmeasurable Disturbances , 2000 .

[14]  Hayakawa Yoshikazu,et al.  Physical-Model-Based Control of Engine Cold Start via Role State Variables , 2008 .

[15]  S. Yurkovich,et al.  Cylinder Air Rate Prediction During Engine Start and Crank-to-Run Transition , 2007, 2007 American Control Conference.

[16]  Tielong Shen,et al.  Benchmark problem for automotive engine control , 2007, SICE Annual Conference 2007.

[17]  Jessy W. Grizzle,et al.  Improved cylinder air charge estimation for transient air fuel ratio control , 1994, Proceedings of 1994 American Control Conference - ACC '94.

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

[19]  Jack K. Hale,et al.  Introduction to Functional Differential Equations , 1993, Applied Mathematical Sciences.

[20]  Riccardo Marino,et al.  Model-based cold-start speed control design for SI engines (特集 エンジン・パワートレイン制御理論と技術の最前線) -- (SICEエンジン始動制御ベンチマークコーナー) , 2008 .

[21]  John J. Moskwa,et al.  Automotive engine modeling for real time control , 1988 .

[22]  Ren-Jun Zhuang,et al.  Analysis of Combustion Behavior During Cold-Start and Warm-Up Process of SI Gasoline Engine , 2001 .

[23]  E. Hendricks,et al.  On the Validity of Mean Value Engine Models During Transient Operation , 2000 .

[24]  E. Hendricks,et al.  Advanced nonlinear engine speed control systems , 1994, Proceedings of 1994 American Control Conference - ACC '94.

[25]  Jing Sun,et al.  Models and Control Methodologies for IC Engine Idle Speed Control Design , 1996 .

[26]  S. Yurkovich,et al.  Predictive fuel dynamic control during engine start and crank-to-run transition for port fuel injected gasoline engines , 2008, 2008 American Control Conference.

[27]  Giorgio Rizzoni,et al.  IC Engine Air/Fuel Ratio Feedback Control During Cold Start , 1996 .

[28]  John B. Heywood,et al.  ANALYSIS OF FUEL BEHAVIOR IN THE SPARK IGNITION ENGINE START-UP PROCESS , 1995 .