Title:
内燃機関の制御装置
Document Type and Number:
Japanese Patent JP6549551
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine capable of improving combustion efficiency while suppressing occurrence of knocking and combustion fluctuation, and improving exhaust gas characteristic in a case of having a main combustion chamber and an auxiliary combustion chamber.SOLUTION: A control device 1 of an internal combustion engine 3 includes an ECU 2. The ECU 2 executes retardation control for controlling an ignition timing of an air-fuel mixture in the auxiliary combustion chamber 3d to a retard side with respect to that when a catalyst is activated through an ignition plug 8, when an inactive state of the catalyst is estimated (step 5), and holds an air-fuel ratio of the air-fuel mixture in a main combustion chamber 3c at a value before start of the retardation control through a main fuel injection valve 6, and controls an air-fuel ratio of the air-fuel mixture in the auxiliary combustion chamber 3d to a rich side with respect to that when the retardation control is not executed, through an auxiliary fuel injection valve 7, when the retardation control is executed (step 4).SELECTED DRAWING: Figure 3
Inventors:
Hiroki Kobayashi
Application Number:
JP2016250501A
Publication Date:
July 24, 2019
Filing Date:
December 26, 2016
Export Citation:
Assignee:
Honda motor industry stock company
International Classes:
F02D41/04; F01N3/20; F02B19/10; F02D41/22; F02D41/34; F02D43/00; F02D45/00
Domestic Patent References:
| JP2005171975A | ||||
| JP2004108225A | ||||
| JP2002276519A |
Attorney, Agent or Firm:
Tomoo Takahashi
Koji Arai
Hiroto Mohri
Koji Arai
Hiroto Mohri