Identification and Quantification of Knock in Internal Combustion Engines using Spectral Analysis
2001-01-3923
03/05/2001
- Event
- Content
- 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.
- Pages
- 10
- 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.