METHOD FOR CONTROLLING IGNITION TIMING OF ENGINE AND DEVICE FOR CONTROLLING IGNITION TIMING OF ENGINE

摘要

PPROBLEM TO BE SOLVED: To provide a method for controlling ignition timing improving calculation method and calculation means of ignition delay time. PSOLUTION: An engine controller 31 executes a time calculation process procedure calculating time until combustion mass ratio rises to reference combustion mass ratio which is combustion mass ratio at a time of initial combustion from ignition timing, and a base ignition timing calculation process procedure calculating base ignition timing on which MBT can be provided based on time until combustion mass ratio rises to base combustion mass ratio from ignition timing. PCOPYRIGHT: (C)2007,JPO&INPIT