Title:
COMBUSTION CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2021143630
Kind Code:
A
Abstract:
To provide a combustion control device which can reduce smoke while suppressing the deterioration of combustion noise even if a swirl in a combustion chamber is strengthened by a swirl control part.SOLUTION: A combustion control device 100 comprises: an SCV 28; an SCV opening sensor 33; an injector 9; an injector control part 47 for controlling the injector 9 so as to perform second fuel injection by performing first fuel injection as main fuel injection for performing premixing compression ignition combustion; an injection amount calculation part 43 for calculating injection amounts of the first and second fuel injections; an injection timing calculation part 44 for calculating the injection timing of the first and second fuel injections so as to cancel a pressure wave of sound pressure at combustion by the first fuel injection by a pressure wave of a sound pressure at combustion by the second fuel injection; and an injection amount ratio correction part 46 for estimating a heat generation rate change amount of combustion caused by the second fuel injection on the basis of a detected SCV opening, and correcting a fuel injection ratio being a ratio between an injection amount of the first fuel injection and an injection amount of the second fuel injection.SELECTED DRAWING: Figure 2
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Inventors:
HYAKUTAKE TAKASHI
FUKAZAWA TOSHIHARU
FUKAZAWA TOSHIHARU
Application Number:
JP2020042792A
Publication Date:
September 24, 2021
Filing Date:
March 12, 2020
Export Citation:
Assignee:
TOYOTA IND CORP
International Classes:
F02D41/40; F02B23/00; F02B31/00; F02D43/00
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Takashi Mikami
Hiromitsu Nakayama
Akira Shibata
Yoshiki Kuroki
Takashi Mikami
Hiromitsu Nakayama
Akira Shibata