Title:
A control device of an internal-combustion engine
Document Type and Number:
Japanese Patent JP6237709
Kind Code:
B2
Abstract:
In the case of performing a main injection, and a sub-injection that injects a minute amount of fuel in a region (i) in Fig. 3, a check is conducted to determine whether or not the minute amount of fuel is injected accurately. In a specific cycle at a time of cold starting when catalyst warm-up control is performed, the main injection is omitted and a checking injection corresponding to a sub-injection is performed. Injection conditions of the in-cylinder injection valve 28 are made uniform between the checking injection and the sub-injection. A fuel amount that is actually injected from the in-cylinder injection valve 28 in the specific cycle is calculated based on the air-fuel ratio of exhaust gas discharged from the engine 10 and an in-cylinder air amount, and is compared with a fuel amount that theoretically should be injected from the in-cylinder injection valve 28.
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Inventors:
Mori Yukio
Hisato Hirooka
Tsuchidate
Hisato Hirooka
Tsuchidate
Application Number:
JP2015120390A
Publication Date:
November 29, 2017
Filing Date:
June 15, 2015
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D41/14; F02D41/34; F02D43/00; F02D45/00; F02P5/15
Domestic Patent References:
| JP2016205298A | ||||
| JP2016205297A | ||||
| JP2015121182A | ||||
| JP2000227041A |
Attorney, Agent or Firm:
Hideki Takahashi
Mamoru Takada
Hidekazu Onishi
Mamoru Takada
Hidekazu Onishi