To make it possible to embody automatically updating programs even when a reserved area in a storing area for updating the programs is not provided, concerning updating programs which operate at a vehicle electronic control device.SOLUTION: A program update device for updating programs which operate at a vehicle electronic control device includes: a use history recording section 510 for sequentially recording use history information of a vehicle into a storing device 130; a use rate calculation section 520 for calculating a use rate of the vehicle based on the use history information; and a program overwrite section 530 in which, when an update to a program occurs, a timing when the use rate of the vehicle is equal to or less than a prescribed use rate is identified, and the update subject program stored in the storing device 230 provided for the vehicle electronic control device is overwritten, at the timing thereof, by a new updated program.SELECTED DRAWING: Figure 3

    【課題】車両用電子制御装置で動作するプログラムの更新において、プログラム更新のための記憶領域の予約領域を具備しない場合であっても、プログラムの自動更新を実現できるようにする。【解決手段】車両用電子制御装置で動作するプログラムを更新するプログラム更新装置は、車両の使用履歴情報を記憶装置130に順次記録する使用履歴記録部510と、使用履歴情報に基づいて、車両の使用率を算出する使用率算出部520と、プログラムに対する更新が発生したときに、車両の使用率が所定基準以下であるタイミングを特定し、当該タイミングで、車両用電子制御装置が備える記憶装置230に格納された更新対象のプログラムを、更新後の新プログラムで書き換えるプログラム書き換え部530と、を含む。。【選択図】図3


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    Title :

    PROGRAM UPDATE DEVICE AND PROGRAM UPDATE METHOD


    Additional title:

    プログラム更新装置及びプログラム更新方法


    Contributors:
    YAMAZAKI KENSHI (author) / KO KENHO (author)

    Publication date :

    2021-03-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR




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