Engine knock detection and control using in-cylinder pressure signal and soft computing techniques

Knocking phenomena in gasoline engines are very dangerous events which can produce severe damages to the engine. The aim of the present work is to implement a real-time control system of the knock using soft-computing techniques to have a more accurate prediction of knock intensity. The control system detects the knocking presence using the cylinder pressure cycle and provides a knock intensity index; the engine ECU uses this information to remove the knocking phenomena modifying the spark advance.