エンジンの燃焼診断信号異常時のパイロット噴射タイミング制御方法および装置

摘要

The present invention includes: an injection timing correction unit 62 which repeatedly corrects a fuel injection timing in relation to a cylinder in which combustion is determined by a combustion diagnosis device 44 to be less than optimal such that a correction amount accumulates until combustion is determined to be optimal; an allowable correction range setting unit 64 which sets an allowable correction range of the fuel injection timing on the basis of data indicating past fuel injection timings of a plurality of cylinders; an injection timing determination unit 70 which determines whether or not the fuel injection timing corrected by the injection timing correction unit 62 is within the allowable correction range; and a command control unit 72 which outputs an injection command at the corrected fuel injection timing when the determination unit determines that the corrected fuel injection timing is within the allowable correction range.