FIELD: mechanical engineering; internal combustion engine; control of separate ignition processes. SUBSTANCE: in proposed ignition system primary winding 10 of at least one ignition coil 11 as series connected to controlled switch 12, spark plug is connected to end of secondary winding located at high voltage side and tap 13 is placed between primary winding 10 and switch to check burning voltage transformed at primary side and circuit 17, 18 is connected after them to process data for comparing measured burning voltage with maximum values for correct combustion. Ignition coil is double spark type, spark plug ZK1, ZK2 being connected to each end of secondary winding. Limited values for normal combustion can be found basing on measured burning voltage of at least one previous burning cycle. EFFECT: enhanced operation reliability. 3 cl, 5 dwg
