To provide a technology for avoiding a situation in which event data disappears by improving the utilization efficiency of a nonvolatile memory in which the event data is written.SOLUTION: A vehicle travel data management system 1 includes an ECU (a vehicle control device) 110 for generating event data (normal time data and emergency data), and a plurality of processing devices (an MPU (a map information processing device) 140, a gateway 130, or the like) having a nonvolatile memory to receive the event data from a vehicle control device and store the event data in the nonvolatile memory, in which they are connected to on-vehicle networks 101A, 101B, 101C to perform intercommunication. An event data generation part 113 of the vehicle control device divides and transmits the generated event data to the plurality of processing devices by periodically applying a prescribed dividing and recording rule with the generation of a prescribed event (the emergency data) as an opportunity. For example, the MPU writes the emergency data in the nonvolatile memory 144 upon receiving the emergency data.SELECTED DRAWING: Figure 1

    【課題】イベントデータを書き込む不揮発性メモリの利用効率を向上させ、かつイベントデータの消失という事態を回避する技術を提供する。【解決手段】車両走行データ管理システム1は、イベントデータ(通常時データおよび緊急時データ)を生成するECU(車両制御装置)110と、不揮発性メモリを有し、イベントデータを車両制御装置から受信して不揮発性メモリに格納する複数の処理装置(MPU(地図情報処理装置)140やゲートウェイ130など)とを備え、それらが車載ネットワーク101A、101B、101Cに接続されて相互通信する。車両制御装置のイベントデータ生成部113は、所定のイベント(緊急時データ)の発生を契機として、生成したイベントデータを、所定の分散記録規則を周期的に適用して、複数の処理装置に分散して送信する。例えば、MPUは、緊急時データを受信すると、不揮発性メモリ144に書き込む。【選択図】図1


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    Title :

    VEHICLE TRAVEL DATA MANAGEMENT SYSTEM, AND VEHICLE CONTROL DEVICE


    Additional title:

    車両走行データ管理システム、および車両制御装置


    Contributors:

    Publication date :

    2022-02-25


    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



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