PROBLEM TO BE SOLVED: To freely change a new network type involved in increase or the like in data traffic of an ECU, such as addition of an Ethernet network, while securing safety of a network regardless of a network type of each domain of the ECU.SOLUTION: A first GW and a second GW transmit and receive management frames to give notice of their communication states via a management network. When a first ECU transmits a frame to a second ECU, the first ECU transmits the same frame to the first GW and the second GW, the first GW and the second GW receive the frame, one of the first GW and the second GW discards the received frame according to respective communication states, and the other of the first GW and the second GW transmits the received frame to the second ECU via a second network.SELECTED DRAWING: Figure 2

    【課題】ECUのドメイン毎のネットワーク種別に関係なく、ネットワークの安全性を確保しつつ、イーサネットネットワークの追加などECUのデータ量の増加等に伴う新たなネットワーク種別の変更を自由におこなう。【解決手段】第一のGWと第二のGWとは、管理用ネットワークにより互いの通信状態を通知する管理用フレームを送受信する。第一のECUが第二のECUに対してフレームを送信する場合に、第一のECUは、第一のGWと第二のGWとに同一のフレームを送信し、第一のGWと第二のGWは、フレームを受信し、各々の通信状態に従い、第一のGWと第二のGWの一方は、受信したフレームを破棄し、第一のGWと第二のGWの他方は、受信したフレームを、第二のネットワークを介して第二のECUに送信する。【選択図】 図2


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    Title :

    REDUNDANT COMMUNICATION SYSTEM AND REDUNDANT COMMUNICATION SYSTEM RECOVERY METHOD


    Additional title:

    冗長通信システム、および、冗長通信システムの復旧方法


    Contributors:
    ENDO HIDEKI (author) / KUBO HIROYUKI (author) / KATAOKA MIKIO (author) / OSADA KENICHI (author)

    Publication date :

    2017-08-24


    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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