Analysis of cyclic combustion variation in a lean operating S. I. engine
Conference
·
OSTI ID:6373930
The causes of the cyclic combustion variation in a lean operating SI engine have been identified using multivariate analysis on the pressure-time data. Principal component analysis on the combustion characteristics obtained from the pressure-time data was conducted in order to select an index of an optimal released heat pattern for analyzing the causes of the cyclic combustion variation. Using this index and the released heat quantity, the IMEP variation was subjected to multiple regression analysis to identify the causes of the cyclic combustion variation. Optimizing the fuel injection timing and swirl ratio made it possible to enrich the mixture near the spark plug.
- Research Organization:
- Mazda Motor Corp.
- OSTI ID:
- 6373930
- Report Number(s):
- CONF-870204-
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
CHEMICAL REACTION KINETICS
COMBUSTION CONTROL
COMBUSTION KINETICS
CONTROL
ENERGY TRANSFER
ENGINES
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
HEAT ENGINES
HEAT TRANSFER
INTERNAL COMBUSTION ENGINES
KINETICS
OPERATION
PRESSURE MEASUREMENT
REACTION KINETICS
SPARK IGNITION ENGINES
THERMODYNAMICS
TIMING PROPERTIES
VARIATIONS
VORTEX FLOW
330101* -- Internal Combustion Engines-- Spark-Ignition
CHEMICAL REACTION KINETICS
COMBUSTION CONTROL
COMBUSTION KINETICS
CONTROL
ENERGY TRANSFER
ENGINES
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
HEAT ENGINES
HEAT TRANSFER
INTERNAL COMBUSTION ENGINES
KINETICS
OPERATION
PRESSURE MEASUREMENT
REACTION KINETICS
SPARK IGNITION ENGINES
THERMODYNAMICS
TIMING PROPERTIES
VARIATIONS
VORTEX FLOW