Title:
CONTROL DEVICE FOR COMPRESSION IGNITION TYPE ENGINE
Document Type and Number:
Japanese Patent JP2020016193
Kind Code:
A
Abstract:
To actualize smooth changeover between all-cylinder operation and cylinder cut-off operation while suppressing a deterioration in emission performance.SOLUTION: An engine 1 including an air regulation part 43, a spark plug 25, and a fuel injection valve 6 starts compression ignition combustion with the ignition of air-fuel mixture formed in a combustion chamber 17. A cylinder number control part 10a is provided for changing over between the all-cylinder operation and the cylinder cut-off operation when the compression ignition combustion at a predetermined lean air-fuel ratio is under way. The cylinder number control part 10a executes preparation control for changing over to the cylinder cut-off operation. The preparation control includes air increase processing, fuel increase processing, and retard processing. In the state of a predetermined air-fuel ratio, the cylinder cut-off operation is started.SELECTED DRAWING: Figure 19
Inventors:
MASUDA YUTA
HIGASHIO MASAYOSHI
SUNANAGARE TAKETAKA
ITO MICHIO
UJIHARA KENKO
MATSUSHIMA YUTO
HIGASHIO MASAYOSHI
SUNANAGARE TAKETAKA
ITO MICHIO
UJIHARA KENKO
MATSUSHIMA YUTO
Application Number:
JP2018140637A
Publication Date:
January 30, 2020
Filing Date:
July 26, 2018
Export Citation:
Assignee:
MAZDA MOTOR
International Classes:
F02D17/02; F02B11/00; F02D9/02; F02D41/02; F02D43/00; F02D45/00
Attorney, Agent or Firm:
Maeda patent office