This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Identification and Quantification of Knock in Internal Combustion Engines using Spectral Analysis
Technical Paper
2001-01-3923
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
This work deals with knock intensity determination. It is quantified by a band-pass filter applied to the combustion chamber pressure signal, using the Fourier Transform. The filtered signal power spectrum is then calculated, as well as its integral through the ⅓ Simpson Rule, which is a measurement of knock intensity. Hence, one can analyze the influence of knock in the engine power, comparing theoretical pressure, torque and power curves with experimental ones for different knock levels.
Recommended Content
| Technical Paper | Light Emission Behavior of Radicals during Preflame Reactions under Knocking Operation |
| Journal Article | Study of Low-Speed Pre-Ignition in Boosted Spark Ignition Engine |
| Technical Paper | A New Technique to Detect and Control Knock Damage |
Authors
Topic
Citation
Sanches, A., Pau, F., dos Santos, A., and da Silva, J., "Identification and Quantification of Knock in Internal Combustion Engines using Spectral Analysis," SAE Technical Paper 2001-01-3923, 2001, https://doi.org/10.4271/2001-01-3923.Also In
References
- SUN, Z. BLACKSHEAR, P. L. KITTELSON, D.B. 1996 Spark ignition engine knock detection using in-cylinder optical probes SAE Paper 9621
- SPICHER, U. et al. 1992 Investigation into the applicability of an optical fiber sensor for knock detection and knock control system SAE Paper 922370
- HEYWOOD, J. B. 1988 Internal combustion engines fundamentals McGraw-Hill
- POWELL, J. D. 1993 Engine control using cylinder pressure: past, present and future Journal of Dynamic Systems, Measurement and Control 115 343 350 June
- TAYLOR, C. F. 1968 The internal-combustion engine in theory and practice. Cambridge The M. I. T.Press
- HORNER, T. G. 1995 Engine knock detection using spectral analysis techniques with a TMS320 DSP http://www-s.ti.com/sc/psheets/spra039/spra039.pdf.
- SAMIMY, B. RIZZONI, G. 1996 Mechanical signature analysis using time-frequency signal processing:application to internal combustion engine knock detection Proceedings of the IEEE 84 9 1330 1343 Sept.
- BRIGHAM, E. O. 1988 The Fast Fourier Transform and its applications Englewood Cliffs Prentice Hall