Interpretation of engine cycle-to-cycle variation by chaotic time series analysis

Conference · Mon Jan 01 00:00:00 EST 1990

OSTI ID:5881616

Daw, C S; Kahl, W

In this paper the authors summarize preliminary results from applying a new mathematical technique- chaotic time series analysis (CTSA)- to cylinder pressure data from a spark-ignition (SI) four-stroke engine fueled with both methanol and iso-octane. Our objective is to look for the presence of deterministic chaos dynamics in peak pressure variations and to investigate the potential usefulness of CTSA as a diagnostic tool. The authors' results suggest that sequential peak cylinder pressures exhibit some characteristic features of deterministic chaos and that CTSA can extract previously unrecognized information from such data.

• OSTI ID: 5881616
• Report Number(s): CONF-9010205-
• Resource Relation: Conference: 1990 Society of Automotive Engineers (SAE) international fuels and lubricants conference and exposition, Tulsa, OK (United States), 22-25 Oct 1990; Other Information: Technical Paper SAE 902103
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
10 SYNTHETIC FUELS
02 PETROLEUM
METHANOL FUELS
PERFORMANCE
SPARK IGNITION ENGINES
PRESSURE GRADIENTS
TIME-SERIES ANALYSIS
CYLINDERS
GASOLINE
OCTANE
VARIATIONS
ALCOHOL FUELS
ALKANES
ENGINES
FUELS
HEAT ENGINES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
MATHEMATICS
ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
SYNTHETIC FUELS
330101* - Internal Combustion Engines- Spark-Ignition
330800 - Emission Control- Alternative Fuels
100400 - Synthetic Fuels- Combustion- (1990-)
025000 - Petroleum- Combustion