Patent ID: 8175789
Filing Date: 2012-05-08
Classification: F02D,Y02T

Abstract:
1. A combustion controller for an engine system having a compression ignition engine that ignites and combusts fuel based on compression in a combustion chamber in a cylinder to generate power to an output shaft, and a fuel injector for directly injecting the fuel to the combustion chamber, the combustion controller controlling an operation of at least one actuator in the system, comprising: an ignition timing detection unit for detecting main ignition timing as ignition timing of main fuel injected by a main injection mainly for generation of power to the output shaft or a parameter correlated with the main ignition timing; a first correction unit for correcting a first command value as a command value of main injection execution timing to the fuel injector in a direction to the side where a detection value by the ignition timing detection unit is converged within a predetermined range; a determination unit for determining whether the first command value corrected by the first correction unit is within a first allowable range; a second correction unit for, when the determination unit determines that the first command value is not within the first allowable range, correcting a second command value other than the first command value among command values to actuators in the system, so as to move the detection value by the ignition timing detection unit to a delay side or advance side in a same direction, in correspondence with whether the first command value is on the delay side or the advance side, wherein the second command value is a command value which relates to an injection other than the main injection.