The present invention, which pertains to an exhaust purification device for an internal combustion engine, optimizes the amount of fuel supplied during forced regeneration, improving fuel economy effectively. This exhaust purification device is provided with the following: a filter (16) that is provided in an exhaust passage (12) for the internal combustion engine (10) and traps particulate matter contained in an exhaust gas; a capacitance detection unit (17a, 17b, 21) that detects the capacitance of the filter (16); and a filter regeneration unit (13, 22) that can perform forced regeneration in which fuel is supplied to the filter (16) and particulate matter that has accumulated inside the filter (16) is removed by combustion. During said forced regeneration, if the decrease per unit time of the detected capacitance falls to or below a prescribed lower threshold, indicating a decrease in the combustion efficiency of the particulate matter, the filter regeneration unit (13, 22) stops the supply of fuel.


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    Title :

    Exhaust purification device for internal combustion engine


    Contributors:
    ASO MITSUHIRO (author) / SHUI YELONG (author)

    Publication date :

    2015-11-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein




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