Keyword: fuzzy, logic, control, combustion, engine, Otto, ignition, spark, detonation,vibration pattern By: Augustinus Sujono, R. Lullus Lambang G. Hidajat The problem of detonation (knocking) in the internal combuction engines, especially in the Otto (petrol) engine, that makes some damages, low fuel economy and erformance. ntil now, the detonation problem hasRead More →