PROBLEM TO BE SOLVED: To provide an abnormality monitoring device that can appropriately monitor abnormality of a control unit, and to provide an electrically-driven power steering device that uses the abnormality monitoring device.SOLUTION: A microcomputer 40 includes a BIST circuit 41 that executes BIST processing, and is configured to prohibit other processing during execution of the BIST processing. An integration IC 20 includes: an abnormality monitoring circuit 23; and a reset circuit 24. The abnormality monitoring circuit 23 monitors abnormality of the microcomputer 40. The reset circuit 24 resets the microcomputer 40, when the abnormality of the microcomputer 40 is determined in the abnormality monitoring circuit 23. The abnormality monitoring circuit 23 can determine the end of the BIST processing, and invalidates abnormality monitoring of the microcomputer 40 during the execution of the BIST processing, and when the end of the BIST processing is determined, starts the abnormality monitoring of the microcomputer 40. Accordingly, erroneous determination such that a state where the other processing is not executed since the microcomputer 40 performs the BIST processing is determined as the abnormality of the microcomputer 40, can be avoided.SELECTED DRAWING: Figure 1

    【課題】制御部の異常を適切に監視可能な異常監視装置、および、これを用いた電動パワーステアリング装置を提供することにある。【解決手段】マイコン40は、BIST処理を実行するBIST回路41を有し、BIST処理の実行中には、他の処理が禁止される。統合IC20は、異常監視回路23、および、リセット回路24を有する。異常監視回路23は、マイコン40の異常を監視する。リセット回路24は、異常監視回路23にてマイコン40の異常が確定された場合、マイコン40をリセットする。異常監視回路23は、BIST処理の終了を判定可能であって、BIST処理の実行中はマイコン40の異常監視を無効化し、BIST処理が終了した判定された場合、マイコン40の異常監視を開始する。これにより、マイコン40がBIST処理中であるために、他の処理が実行されていない状態を、マイコン40の異常であると誤判定するのを避けることができる。【選択図】 図1


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    Title :

    ABNORMALITY MONITORING DEVICE AND ELECTRICALLY-DRIVEN POWER STEERING DEVICE USING THE SAME


    Additional title:

    異常監視装置、および、これを用いた電動パワーステアリング装置


    Contributors:

    Publication date :

    2017-08-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B62D MOTOR VEHICLES , Motorfahrzeuge



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