Honda Motor Co., Ltd.

Ryuji Matsukado

Isao Chiba

Isao Kaneko

Yoshinori Ishihara

Ryuta Matsui

An exhaust gas purifying apparatus for an internal combustion engine includes a particulate filter for trapping particulates found in the exhaust gases of the engine. The regeneration process for burning the particulates trapped in the particulate filter is executed by performing post injection of fuel. The regeneration process is suppressed according to an amount of fuel injected during post injection.

Exhaust gas purifying apparatus for internal combustion engine

A control system for an internal combustion engine that executes post injection, which is capable of accurately estimating the state of dilution of engine oil, thereby properly controlling the amount of oil dilution such that it does not become too large. In an internal combustion engine having an injector that injects fuel into a combustion chamber, post injection is executed in which fuel is injected from the injector during the expansion stroke or the exhaust stroke of the engine, based on a detected operating condition of the engine. The amount of dilution of engine oil diluted with fuel injected by post injection is calculated. The amount of fuel evaporated from the engine oil is calculated. A state of dilution of the engine oil is estimated based on the calculated engine dilution amount and the calculated fuel evaporation amount.

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Wako, Japan

Ryuji Matsukado