Abstract
The method to detect knock location was developed, which utilized the arrival time delays of the pressure wave between several pressure sensors in the combustion chamber of the gasoline engine. In this method, the time delays were derived from the time-frequency analysis. The calculated knock location by the least square method satisfied the result of the experimental time delays in a minimum error. This method was applied in various conditions in a single cylinder engine, showed effects of swirl and weak stratification with a port injection and a direct injection.
