To provide a purge system for decreasing the frequency of operations of an air dryer reproducing a desiccant.SOLUTION: A purge system includes: an air dryer having a purge valve; a purge control valve controlled in either of a first control mode and a second control mode, the former in which to start supplying the purge valve with instruction pressure when tank pressure being pressure inside a main tank has reached a first pressure value, and the latter in which to stop the supply of the instruction pressure when the tank pressure has decreased to a second pressure value being lower than the first pressure value; and a control part for switching to the second control more from the first control mode in a case where at least any of the following conditions is met, i.e., a given operation is detected, an air supply volume in a given period is determined to be smaller than a first threshold, and a period of time from a clock time when the supply of instruction pressure has been started to a clock time when the supply of instruction pressure has been stopped is equal to or longer than a reference time.SELECTED DRAWING: Figure 1

    【課題】エアドライヤでの乾燥剤の再生動作の頻度を少なくするパージシステムを提供することを目的とする。【解決手段】パージシステムは、パージバルブを有するエアドライヤと、メインタンク内の圧力であるタンク圧が第1の圧力値に達したときにパージバルブへの指示圧の供給を開始し、タンク圧が第1の圧力値よりも小さい第2の圧力値に低下したときに指示圧の供給を停止する第1の制御モード、および、指示圧の供給を停止する第2の制御モードのいずれかで制御されるパージ制御弁と、所定の操作が検出されたこと、所定期間におけるエア供給量が第1の閾値よりも少ないと判定したこと、および、指示圧の供給が開始された時刻から指示圧の供給が停止した時刻までの時間が基準時間以上であることの少なくともいずれかが満たされた場合、第1の制御モードから第2の制御モードに切り替える制御部と、を備える。【選択図】図1


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    Title :

    PURGE SYSTEM AND VEHICLE


    Additional title:

    パージシステムおよび車両


    Contributors:
    AKIBA TORU (author) / IKEMOTO SHIRO (author) / KUMADA TETSUYA (author)

    Publication date :

    2021-10-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS



    PURGE SYSTEM AND VEHICLE

    AKIBA TORU / IKEMOTO SHIRO / KUMADA TETSUYA | European Patent Office | 2021

    Free access

    PURGE SYSTEM AND VEHICLE

    AKIBA TORU / KUMADA TETSUYA | European Patent Office | 2021

    Free access

    PURGE SYSTEM AND VEHICLE

    AKIBA TORU / KUMADA TETSUYA | European Patent Office | 2021

    Free access

    PURGE SYSTEM AND VEHICLE

    AKIBA TORU / KUMADA TETSUYA | European Patent Office | 2021

    Free access

    PURGE SYSTEM AND VEHICLE

    AKIBA TORU / IKEMOTO SHIRO / KUMADA TETSUYA | European Patent Office | 2021

    Free access