To prevent unauthorized intrusion into a communication network on a vehicle without adding wires that have a large effect on a structure of a wire harness on the vehicle.SOLUTION: A function substituting unit 40 is attached, in place of a joint-connector, in a position Pc1 where communication lines for a plurality of systems of wire harnesses converge. The function substituting unit 40 has a plurality of terminals for connecting CAN buses of the plurality of systems, and detects and blocks an unauthorized signal transmitted from an unauthorized device by distinguishing the position of each of the terminals from the area of a path which a CAN signal has passed through. For example, an ECU having a smart key collation function is located in a vehicle indoor space 10b. When an unauthorized device intrudes into the CAN bus through an engine room 10a, the function substituting unit 40 identifies a difference of region to detect an unauthorized signal. The function substituting unit 40 performs monitoring only when the vehicle is standing still and performs only relay of the signal when the vehicle is moving, thereby minimizing signal delay.SELECTED DRAWING: Figure 1

    【課題】車両上のワイヤハーネスの構造に大きな影響を与える電線の追加を伴うことなく、車両上の通信ネットワークへの不正侵入を防止すること。【解決手段】ワイヤハーネスの複数系統の通信線が集中する位置Pc1に、ジョイントコネクタの代わりに機能代行ユニット40を取り付ける。機能代行ユニット40は複数系統のCANバスを接続するための複数の端子を有し、各端子の位置とCAN信号が通過した経路の領域を区別することで、不正な機器から送出された不正な信号を検出し遮断する。例えばスマートキーの照合機能を有するECUは車室10b側にあり、不正な機器はエンジンルーム10a側からCANバスに侵入するので、その領域の違いを機能代行ユニット40が識別して不正な信号を検知できる。機能代行ユニット40は車両停止中のみ監視を行い走行中は信号の中継だけを行い信号遅延を最小化する。【選択図】図1


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    Titel :

    IN-VEHICLE COMMUNICATION LINE CONNECTION DEVICE


    Weitere Titelangaben:

    車載通信線接続装置


    Beteiligte:

    Erscheinungsdatum :

    31.08.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    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 / H02G INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES , Verlegen oder Installieren elektrischer Kabel oder Leitungen, Verlegen oder Installieren kombinierter optischer und elektrischer Kabel oder Leitungen



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