To provide an on-vehicle relay device and a data transfer method therefor that eliminate the need to alter software even if the number of ECUs mounted on a vehicle increases and can reduce development costs.SOLUTION: A gateway ECU 3 as an on-vehicle relay device is configured to: on receiving a specific request from a diagnostic tool 20 connected to a vehicle, transfer the specific request to a plurality of ECUs 10-18 to which the specific request is to be transmitted; set communication intervals for response frames that are generated by dividing response data sent back from the ECUs 10-18 in response to the specific request based upon the number of the ECUs and load of a communication line; transmit the set communication intervals for the response frames to the ECUs 10-18; and transfer the response frames sent back from the ECUs 10-18 to the diagnostic tool 20 at the set communication intervals.SELECTED DRAWING: Figure 1

    【課題】車両に搭載されたECUの数が増加してもソフトウェアを変更する必要がなく、開発費用を低減することのできる車載中継装置及びそのデータ転送方法を提供する。【解決手段】車載中継装置であるゲートウェイECU3は、車両に接続された診断ツール20から特定のリクエストを受信すると、特定のリクエストの送信対象である複数のECU10-18に特定のリクエストを転送し、特定のリクエストに対してECU10-18から返信される応答データを分割した応答フレームの通信間隔を、ECUの数と通信ラインの負荷とに基づいて設定し、設定された応答フレームの通信間隔をECU10-18へ送信し、設定された通信間隔でECU10-18から返信された応答フレームを診断ツール20へ転送する。【選択図】図1


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    Title :

    DATA TRANSFER METHOD AND ON-VEHICLE RELAY DEVICE


    Additional title:

    データ転送方法及び車載中継装置


    Contributors:

    Publication date :

    2024-08-16


    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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