Patent ID: 6805110
Filing Date: 2004-10-19
Classification: F02D,F02P

Abstract:
An ignition control method for an engine, comprising:calculating a dwell angle and an ignition angle of a reference cylinder based on an engine speed; calculating a first number of pulses and a first timer-monitored angle corresponding to a pre-Dwell-On period with regard to the reference cylinder, the pre-Dwell-On period being a period from occurrence of a first reference pulse to a Dwell-On timing with regard to the reference cylinder; comparing the first number of pulses with a reference number of pulses that correspond to 180Â° of crank angle; determining an ignition cylinder based on the comparison of the first number with the reference number; and actuating ignition of a spark plug of the ignition cylinder based on the first number of pulses, the first timer-monitored angle, and the ignition angle of the reference cylinder.