To provide an on-vehicle network system suppressing standby power.SOLUTION: An on-vehicle network system includes a power supply, an upper ECU, an intermediate ECU performing communication with the upper ECU, and a plurality of lower ECUs performing communication with the intermediate ECU. The intermediate ECU is supplied with power from the power supply, and according to a message received from the upper ECU, power from the power supply is supplied to the lower ECU to maintain the lower ECU in a power-off state until a message is received from the upper ECU. The lower ECU transits to a standby state for waiting an instruction from the power-off state, when power from the power supply is supplied.SELECTED DRAWING: Figure 1

    【課題】待機電力を抑制した車載ネットワークシステムを提供する。【解決手段】車載ネットワークシステムは、電源と、上位ECUと、上位ECUと通信を行う中間ECUと、中間ECUと通信を行う複数の下位ECUとを備え、中間ECUは、電源から電力が供給されており、上位ECUから受信するメッセージに応じて、下位ECUに電源からの電力を供給することで、上位ECUからメッセージを受信するまで下位ECUを電源断状態に維持し、下位ECUは、電源からの電力が供給されると、電源断状態から、指示を待機する待機状態に遷移する。【選択図】図1


    Access

    Download


    Export, share and cite



    Title :

    ON-VEHICLE NETWORK SYSTEM


    Additional title:

    車載ネットワークシステム


    Contributors:

    Publication date :

    2021-02-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr



    VEHICLE NETWORK SYSTEM

    SEKI KOICHI / SHIM CHUI CHUAN / OSHIMA HIRONORI et al. | European Patent Office | 2020

    Free access

    VEHICLE NETWORK SYSTEM

    SUZUKI KOJI | European Patent Office | 2019

    Free access

    VEHICLE NETWORK SYSTEM

    SUZUKI KOJI | European Patent Office | 2019

    Free access

    VEHICLE NETWORK SYSTEM

    MAKI YOICHI / MATSUNAGA GENSHIN / SUGIMOTO KOZO | European Patent Office | 2016

    Free access

    VEHICLE NETWORK SYSTEM

    HOMMA YOJI / KISHIGAMI TOMOHISA | European Patent Office | 2021

    Free access