| 摘要 |
Provided is an ignition control ECU for implementation in an ignition system having an ignition coil (51) provided with a primary winding (51a) and a second winding (51b), for generating ignition energy in the second winding (51b) by blocking a primary current in the primary winding (51a), and a spark plug (40) for generating a spark discharge from the ignition energy in a gap (G) between counter electrodes (41, 42), and igniting fuel within a combustion chamber (11a) of an engine. The device acquires a discharge parameter that indicates a discharge waveform for the spark discharge occurring after blockage of the primary current, and on the basis of the acquired discharge parameter, sets an energization time interval for the primary winding (51a) of the ignition coil (51), and energizes the primary winding (51a) for the set energization time interval, controlling the ignition energy. |
