Knock Behavior of SI-Engines: Thermodynamic Analysis of Knock Onset Locations and Knock Intensities

2006-01-0225

04/03/2006

Event
SAE 2006 World Congress & Exhibition
Authors Abstract
Content
A general definition and an index for the assessment of different engine knock behavior have been developed. The knock onset locations have been determined by piezoresistive pressure actuators and optical fiber probes in full load engine operation mode. The thermodynamic conditions at the knock onset locations have been quantified by CFD-calculations. Therefore the local fuel concentration, mixture temperature and residual gas concentration have been considered. These calculated thermodynamic conditions were further used to calculate the necessary volume of an exothermal center for the generation of the maximal measured pressure amplitudes.
Meta TagsDetails
DOI
https://doi.org/10.4271/2006-01-0225
Pages
14
Citation
Rothe, M., Heidenreich, T., Spicher, U., and Schubert, A., "Knock Behavior of SI-Engines: Thermodynamic Analysis of Knock Onset Locations and Knock Intensities," SAE Technical Paper 2006-01-0225, 2006, https://doi.org/10.4271/2006-01-0225.
Additional Details
Publisher
Published
Apr 3, 2006
Product Code
2006-01-0225
Content Type
Technical Paper
Language
English