COMBUSTION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To provide a combustion control device simply achieving good lean combustion in a multiple ignition system.SOLUTION: This device includes: an ignition transformer T with a primary coil L1 and a secondary coil L2 electromagnetically coupled with each other; a switching element Q repeating plural times of OFF transition operation during one ignition cycle; an ignition plug PG discharging and igniting by receiving high voltage induced by the ignition transformer T in OFF transition; a signal detection part acquiring voltage value of the ignition transformer in ignition discharge as signal detection value; a storage part MEM storing a target value of each ignition discharge critically achieving good lean combustion for each individual operation condition; and a combustion control part COM comparing the signal detection value of second ignition discharge or after in one ignition cycle with the target value, and adjusting air intake quantity and/or fuel supply quantity so as to make the signal detection value agree with the target value.