PROBLEM TO BE SOLVED: To provide a control unit of an internal combustion engine having a self-shutoff feature capable of reliably blocking a main relay using main relay driving means even when a microcomputer or serial communication means malfunctions.SOLUTION: Main relay driving means includes main relay blocking means that performs, aside from a main relay self-shutoff action that is performed by a microcomputer with the elapse of a first predetermined time, a main relay power shutoff action with the elapse of a second predetermined time, which is longer than the first predetermined time, since a key switch disconnection time in the case where the self-shutoff action cannot be performed. Even if an abnormality occurs in the microcomputer or serial communication means between the microcomputer and main relay driving means, the main relay blocking means can reliably block the main relay.SELECTED DRAWING: Figure 1

    【課題】マイクロコンピュータやシリアル通信手段に誤動作を生じても、確実にメインリレー駆動手段によってメインリレーを遮断できるセルフシャットオフ機能を備えた内燃機関の制御装置を提供することにある。【解決手段】マイクロコンピュータによって第一の所定時間が経過すると実行されるメインリレーのセルフシャットオフ動作とは別に、セルフシャットオフ動作が実行できない場合は、キースイッチ遮断時点から第一の所定時間より長い第二の所定時間の経過後にメインリレーの電源遮断動作を実行するメインリレー遮断手段をメインリレー駆動手段に設けるようにした。マイクロコンピュータ及びマイクロコンピュータからメインリレー駆動手段の間のシリアル通信手段に異常が生じても、メインリレー遮断手段でメインリレーを確実に遮断することができるようになる。【選択図】図1


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    Title :

    CONTROL UNIT OF INTERNAL COMBUSTION ENGINE


    Additional title:

    内燃機関の制御装置


    Contributors:

    Publication date :

    2016-03-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen



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