Title:
内燃機関制御装置
Document Type and Number:
Japanese Patent JP6732035
Kind Code:
B2
Abstract:
In an internal combustion engine which performs a homogeneous lean combustion mode and a stratified lean combustion mode, there is provided a new internal combustion engine control device capable of obtaining a stable combustion state by decreasing influences of delay of an air flow and a degree of change of a transient state and smoothly performing switching between the homogeneous lean combustion mode and the stratified lean combustion mode. Accordingly, in the present invention, when switching between the stratified lean mode in which a compression stroke injection is performed by a direct injection injector 7 and the homogeneous lean combustion mode in which an intake stroke injection is performed by the direct injection injector 7 is performed, a predetermined delay time Δt is provided from at least a switching operation of a tumble control valve 6, a switching operation between the compression stroke injection and the intake stroke injection is performed, and the delay time Δt is set so as to correspond to a magnitude of the degree of change ΔL of the transient state. A switching timing between the compression stroke injection and the intake stroke injection is controlled according to the flow delay of an air control system such as the tumble control valve 6 and the degree of change ΔL of the transient state, and thus, it is possible to improve combustion stability in a combustion chamber.
Inventors:
Kenichiro Ogata
Arihara Yoshinobu
Hisahiro Oba
Takaki Itaya
Arihara Yoshinobu
Hisahiro Oba
Takaki Itaya
Application Number:
JP2018543811A
Publication Date:
July 29, 2020
Filing Date:
September 13, 2017
Export Citation:
Assignee:
Hitachi Automotive Systems, Ltd.
International Classes:
F02D41/10; F02B27/02; F02B31/00; F02D15/02; F02D41/34; F02P15/10
Domestic Patent References:
| JP2005337166A | ||||
| JP2009024580A | ||||
| JP2000297688A | ||||
| JP2000337235A |
Attorney, Agent or Firm:
Polaire Patent Business Corporation