Title:
ENGINE DEVICE
Document Type and Number:
Japanese Patent JP2022007804
Kind Code:
A
Abstract:
To further properly carry out the last fuel injection at the warming-up of a purifier.SOLUTION: An engine device executes the warning-up of a purifier, by switching compression stroke injection warming-up in which the last fuel injection from a cylinder injection valve is carried out in a compression stroke and ignition is carried out in the next expansion stroke, and expansion stroke injection warming-up in which the last fuel injection from the cylinder injection valve is carried out in an expansion stroke and ignition is carried out synchronously with the fuel injection. An injection start timing base value of the last fuel injection carried out in the expansion stroke when executing the expansion stroke injection warming-up is set according to the temperature of cooling water at starting of an engine and time since the engine is started, and an injection start timing base value of the last fuel injection carried out in the compression stroke when executing compression stroke injection warming-up is set according to a predetermined fuel injection finish timing.SELECTED DRAWING: Figure 2
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Inventors:
ANDO HIROKAZU
IDOGAWA MASANAO
UCHIDA TAKAHIRO
ICHIKAWA KOJI
MIZOGUCHI HIROAKI
OKUBO TAKUYA
IMAI SOICHI
IDOGAWA MASANAO
UCHIDA TAKAHIRO
ICHIKAWA KOJI
MIZOGUCHI HIROAKI
OKUBO TAKUYA
IMAI SOICHI
Application Number:
JP2020110991A
Publication Date:
January 13, 2022
Filing Date:
June 27, 2020
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F02D41/04; F02D41/34; F02D45/00
Attorney, Agent or Firm:
Aitec International Patent Office
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