To reduce risks that a feeling of strangeness may be given to an occupant in a vehicle by reducing frequencies at which operation sound is generated in a piston of a slave cylinder.SOLUTION: The vehicular braking system comprises: first and second master cut valves 60a and 60b, normally-closed valves which cut off a liquid flow path between a master cylinder 34 and a slave cylinder 16, in which liquid pressure at the slave cylinder 16 side and at a vehicle behaviour stabilizer 18 side acts in a closing direction of the valves; a pressure sensor Ph that detects the liquid pressure at the vehicle behaviour stabilizer 18 side; and a piston control part that when detection by the pressure sensor Ph shows that holding pressure at the vehicle behaviour stabilizer 18 side exceeds a prescribed value, performs control by which first and second slave pistons 77a and 77b of the slave cylinder 16 are advanced and returned at predetermined timing.SELECTED DRAWING: Figure 1
【課題】スレーブシリンダのピストンにおける動作音の発生回数を低減させて、車両の乗員に違和感を与える恐れを低減させる。【解決手段】マスタシリンダ34とスレーブシリンダ16との間の液流路を遮断する常閉弁であり、スレーブシリンダ16側及び車両挙動安定化装置18側の液圧が弁を閉じる方向に働く第1及び第2マスタカット弁60a,60bと、車両挙動安定化装置18側の液圧を検出する圧力センサPhと、圧力センサPhの検出から車両挙動安定化装置18側の保持圧が所定の値を超えるときは、スレーブシリンダ16の第1及び第2スレーブピストン77a,77bを前進させて、所定のタイミングで戻す制御を行うピストン制御部とを備える。【選択図】図1
VEHICULAR BRAKING SYSTEM
車両用制動システム
2020-02-13
Patent
Electronic Resource
Japanese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |