Motion planning for experimental air path control of a variable-valve-timing spark ignition engine

Air path control of a spark ignition engine without an EGR loop, equipped with variable-valve-timing (VVT) actuators, is addressed in this paper. VVT devices are used to produce internal exhaust gas recirculation, providing beneficial effects in terms of fuel consumption and pollutant emissions reduction. However, VVT actuators affect the fresh air charge in the cylinders. This has an impact on the torque output (leading to driveability problems) and on the fuel/air ratio (FAR) (leading to pollution peaks). To compensate for these undesirable effects, a new approach is proposed. Supportive experimental results show the relevance of this approach.

[1]  J. Christian Gerdes,et al.  Modeling cycle-to-cycle dynamics and mode transition in HCCI engines with variable valve actuation , 2006 .

[2]  Bertrand Lecointe,et al.  Downsizing a Gasoline Engine Using Turbocharging with Direct Injection , 2003 .

[3]  Paolo Rapisarda,et al.  Proceedings 15th International Symposium on Mathematical Theory of Networks and Systems , 2002 .

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

[5]  Thierry Marie Guerra,et al.  Robust Takagi–Sugeno fuzzy control of a spark ignition engine , 2007 .

[6]  Ilya V. Kolmanovsky,et al.  Predictive energy management of a power-split hybrid electric vehicle , 2009, 2009 American Control Conference.

[7]  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.

[8]  Mrdjan J. Jankovic,et al.  Torque management of engines with variable cam timing , 1998 .

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

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

[11]  Gérard Bloch,et al.  Neural Control of Fast Nonlinear Systems— Application to a Turbocharged SI Engine With VCT , 2007, IEEE Transactions on Neural Networks.

[12]  Ilya V. Kolmanovsky,et al.  Analysis and control of transient torque response in engines with internal exhaust gas recirculation , 1999, IEEE Trans. Control. Syst. Technol..

[13]  Ilya Kolmanovsky,et al.  Application of input estimation techniques to charge estimation and control in automotive engines , 2002 .

[14]  J. Chauvin,et al.  Modeling Fresh Air Charge and Residual Gas Fraction on a Dual Independent Variable Valve Timing SI Engine , 2008 .

[15]  Elbert Hendricks,et al.  Predicting the Port Air Mass Flow of SI Engines in Air/Fuel Ratio Control Applications , 2000 .

[16]  Guillaume Colin,et al.  Engine Control of a Downsized Spark Ignited Engine : from Simulation to Vehicle , 2007 .

[17]  Anna G. Stefanopoulou,et al.  Control-Oriented Model of a Dual Equal Variable Cam Timing Spark Ignition Engine , 1998 .

[18]  J. Chauvin,et al.  Airpath control of a SI engine with Variable Valve Timing actuators , 2008, 2008 American Control Conference.

[19]  Ilya Kolmanovsky,et al.  Dynamic scheduling of internal exhaust gas recirculation systems , 1997 .

[20]  Lars Eriksson,et al.  Air-to-Cylinder Observer on a Turbocharged SI-Engine with Wastegate , 2001 .