Simulation of misfire and strategies for misfire recovery of gasoline HCCI

Author

Knierim, Karl Lukas ; Park, Sungbae ; Ahmed, Jasim ; Kojic, Aleksandar ; Orlandini, Igor ; Kulzer, André

Author_Institution

Res. & Technol. Center, Robert Bosch LLC, Palo Alto, CA

fYear

2008

fDate

11-13 June 2008

Firstpage

3947

Lastpage

3952

Abstract

In HCCI mode with negative valve overlap, the understanding of the engine behavior in case of misfire and delayed combustion is important to provide a complete control strategy. A hybrid continuous zero dimensional model for gasoline HCCI, based on simplified chemical kinetics and a separate airflow model is introduced. CHEMKIN is used to simulate the chemical kinetics, whereas the airflow and the injection is simulated using MatLab. The model is compared to experimental data. The introduced model is used to analyze the effect of misfire and late combustions on the dynamics of the system. A state transition map is proposed to distinguish between misfire with and without recovery. Control strategies to improve the misfire recovery are suggested.

Keywords

combustion; flow simulation; internal combustion engines; process control; reaction kinetics; reaction kinetics theory; MatLab; chemical kinetics; delayed combustion; gasoline HCCI; hybrid continuous zero dimensional model; misfire recovery; misfire simulation; negative valve overlap; simplified chemical kinetics; state transition map; Chemicals; Combustion; Delay; Engines; Kinetic theory; Mathematical model; Petroleum; Predictive models; Sparks; Valves;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2008

Conference_Location

Seattle, WA

ISSN

0743-1619

Print_ISBN

978-1-4244-2078-0

Electronic_ISBN

0743-1619

Type

conf

DOI

10.1109/ACC.2008.4587109

Filename

4587109