Determination method for point of origin of knocking combustion in combustion engine, involves computing geometrical position of knocking place using mathematical approximation method by time difference measurement

摘要

The method involves computing geometrical position of knocking place (K) using mathematical approximation method by time difference measurement, which is based on the arrival of the acoustic wave produced by the knocking. The combustion chamber (1) has three pressure sensors (D1,D2,D3). The pressure sensors are arranged at different places in the combustion chamber.