To record an abnormality potentially causing power depletion of an auxiliary battery of a vehicle due to fail to cut off power supply of an ECU, and notify an occupant of the abnormality.SOLUTION: An electronic control unit to be connected to a network includes: an arithmetic unit for controlling the electronic control unit; a transmission/receipt part capable of receiving a start signal from the network; a diagnostic circuit for generating a start signal for testing and outputting it to the transmission/receipt part; and a cutoff circuit capable of switching whether to connect the transmission/receipt part to the network or to the diagnostic circuit. The arithmetic unit switches the cutoff circuit so as to disconnect the connection to the network, switches the transmission/receipt part to a stand-by state of the start signal, performs first determination which determines if a start signal detection signal output from the transmission/receipt part is in a start signal detection state, and determines that the electronic control unit is in failure if the start signal detection signal output from the transmission/receipt part is in the start signal detection state.SELECTED DRAWING: Figure 1A

    【課題】ECUの電源を遮断できずに車両の補機バッテリの電力枯渇の可能性がある異常を記録して搭乗者へ通知する。【解決手段】ネットワークに接続される電子制御装置であって、前記電子制御装置を制御する演算装置と、前記ネットワークからの起動信号を受信可能な送受信部と、試験用の起動信号を発生し、前記送受信部に出力する診断回路と、前記送受信部を前記ネットワークと接続するか、前記診断回路と接続するかを切替可能な遮断回路とを備え、前記演算装置は、前記ネットワークとの接続を遮断するように前記遮断回路を切り替え、前記起動信号の待機状態へ前記送受信部を切り替え、前記送受信部から出力される起動信号検出信号が起動信号検出状態であるかを第1の判定をし、前記送受信部から出力される起動信号検出信号が前記起動信号検出状態であれば、前記電子制御装置の故障であると判定する。【選択図】図1A


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    Title :

    ELECTRONIC CONTROL UNIT AND FAILURE DIAGNOSTIC METHOD


    Additional title:

    電子制御装置及び故障診断方法


    Contributors:
    SEKIYA YUTO (author)

    Publication date :

    2023-12-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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