This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Evaluations of Combustion Parameters Using Engine Speed Fluctuation Measurements
Technical Paper
2005-01-2533
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The combustion process in an IC engine is of significant importance for its noise and vibration characteristics in the vehicle. Describing the combustion process with thermodynamic metrics typically demands extensive instrumentation of the engine to obtain the cylinder pressure from the combustion chamber. This time consuming task often requires, that the engine be removed from the vehicle, instrumented with pressure transducers, and then either reinstalled in the vehicle and tested or installed in a test cell and evaluated. This paper describes a new relatively simple approach towards examining important combustion parameters.
The technique is based on statistical analysis of the crankshaft's speed fluctuation. This approach requires relatively simple instrumentation of the engine and is therefore more applicable for vehicle level investigations. Several correlations between speed fluctuation and combustion parameters not found in current literature are described here in the form of a case study on an engine. The advantages and limitations of the technique are discussed and recommendations are advanced for future work.
Recommended Content
Authors
Citation
Hartwig, M., Via, J., Govindswamy, K., and Ubong, E., "Evaluations of Combustion Parameters Using Engine Speed Fluctuation Measurements," SAE Technical Paper 2005-01-2533, 2005, https://doi.org/10.4271/2005-01-2533.Also In
References
- Govindswamy K. Hueser M. “Developed on the Quiet” Engine Technology International March 2002 44 47
- Alt N.W. Nehl J. Heuer S. Schlitzer M.W. “Prediction of Combustion Process Induced Vehicle Interior Noise” SAE Paper 2003-01-1435
- Stout J. Mancini M. Host R. Hancock K. “Combustion Uniformity as a Measure for Engine Idle NVH” SAE Paper 2003-01-1429
- Teng C. “Evaluation of Idle Combustion Stability Using Flywheel Acceleration” SAE Paper 2003-01-1673
- Beikmann R.S. “Roll-Down Considerations in Idle Quality” SAE Paper 2001-01-1501
- Chen X.D. Roskilly M. “A Crank Angular Velocity Based Method for Engine IMEP Measurement for Idle Quality Investigation and Adaptive Ignition Time Trimming to Improve Idle Quality” SAE Paper 1999-01-0855
- Hoard J. Rehagen L. “Relating Subjective Idle-Quality to Engine Combustion” SAE Paper 970035