PROBLEM TO BE SOLVED: To reduce air of a servo chamber by the movement of a control piston.SOLUTION: When issuing an air reduction command, a booster linear valve 160 is switched to an opening state, and a decompression linear valve 162 is switched to a closed state, and fluid pressure of a control pressure chamber 122 is increased, and the control piston 114 is advanced. A servo chamber 124 is cut off from a reservoir 52, and is communicated with a high pressure chamber 116, so that servo hydraulic pressure is increased. Afterwards, the decompression linear valve 162 is switched to an opening state. The control piston 114 retreats, and the servo chamber 124 is communicated with the reservoir 52. The air of the servo chamber 124 flows out to the reservoir 52 together with a working fluid. Thus, the air of an air reduction object part 222 can be reduced.

    【課題】制御ピストンの移動により、サーボ室のエアを低減させる。【解決手段】エア低減指令が出されると、増圧リニア弁160が開状態、減圧リニア弁162が閉状態に切り換えられて、制御圧室122の液圧が増加させられ、制御ピストン114が前進させられる。サーボ室124がリザーバ52から遮断され、高圧室116に連通させられることにより、サーボ液圧が増加させられる。その後、減圧リニア弁162が開状態に切り換えられる。制御ピストン114が後退し、サーボ室124がリザーバ52に連通させられる。サーボ室124のエアは作動液とともにリザーバ52に流出させられる。それにより、エア低減対象部222のエアを低減させることができる。【選択図】図6


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    Title :

    HYDRAULIC BRAKE SYSTEM


    Additional title:

    液圧ブレーキシステム


    Contributors:

    Publication date :

    2015-07-02


    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



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