Dynamics of Homogeneous Charge Compression Ignition (HCCI) Engines with High Dilution

This paper analyzes the stability of the autoignition process of homogeneous charge compression ignition (HCCI) engines in light of the cycle-to-cycle thermal feedback due to the high percentage of exhaust dilution. The influence of heat transfer and the cooling system on the system stability is investigated. The returning map and the stability of the multiple steady state equilibria are confirmed with a high order dynamic nonlinear model, which includes manifold filling and composition dynamics and has been validated both at steady state and during transient. It is shown that the autoignition, which is based on high exhaust gas recirculation and thus strong cycle-to-cycle temperature coupling, can depart from the region of attraction of a stable equilibrium during large and fast changes in fueling level.

[1]  C. Edwards,et al.  Dynamic Modeling of Residual-Affected Homogeneous Charge Compression Ignition Engines with Variable Valve Actuation , 2005 .

[2]  Halim G. Santoso,et al.  Managing SI/HCCI Dual-Mode Engine Operation , 2005 .

[3]  A. Stefanopoulou,et al.  Sensitivity analysis of combustion timing and duration of homogeneous charge compression ignition (HCCI) engines , 2006, 2006 American Control Conference.

[4]  G. Rizzoni,et al.  Supervisory control for NO/sub x/ reduction of an HEV with a mixed-mode HCCI/CIDI engine , 2005, Proceedings of the 2005, American Control Conference, 2005..

[5]  R. H. Thring,et al.  Homogeneous-Charge Compression-Ignition (HCCI) Engines , 1989 .

[6]  Mrdjan Jankovic,et al.  Nonlinear Observer-Based Control of Load Transitions in Homogeneous Charge Compression Ignition Engines , 2007, IEEE Transactions on Control Systems Technology.

[7]  Anna G. Stefanopoulou,et al.  Steady-state multiplicity and stability of thermal equilibria in homogeneous charge compression ignition (HCCI) engines , 2004, 2004 43rd IEEE Conference on Decision and Control (CDC) (IEEE Cat. No.04CH37601).

[8]  Rudolf H. Stanglmaier,et al.  Homogeneous charge compression ignition (HCCI): Benefits, compromises, and future engine applications , 1999 .

[9]  Scott B. Fiveland,et al.  Compression Ratio Influence on Maximum Load of a Natural Gas Fueled HCCI Engine , 2002 .

[10]  Joshua R. Smith,et al.  HCCI Engine Control by Thermal Management , 2000 .

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

[12]  D. Foster,et al.  Compression-Ignited Homogeneous Charge Combustion , 1983 .

[13]  A.G. Stefanopoulou,et al.  Control of thermal ignition in gasoline engines , 2005, Proceedings of the 2005, American Control Conference, 2005..

[14]  T.-W. Kuo,et al.  A mean-value model for control of homogeneous charge compression ignition (HCCI) engines , 2005, Proceedings of the 2004 American Control Conference.