| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vehicular brake fluid pressure control apparatus adapted to return the brake fluid within a reservoir to a master cylinder even during the input of the master cylinder. Ž<P>SOLUTION: The vehicular brake fluid pressure control apparatus S includes a brake fluid pressure control unit U having an output fluid pressure passage 10; a control valve means (an inlet valve 20 and an outlet valve 21); the reservoir R formed by dividing the interior of a cylinder 56 into a storage chamber 54 and a pressure chamber 55 with a piston 51; an open passage 30; and a return passage 31. The apparatus further includes a secondary master cylinder M2 for generating a liquid pressure through a brake reaction force received with a (second) wheel brake B2; and a secondary fluid pressure passage 80 to permit communication between the secondary master cylinder M2 and the pressure chamber 55 within the reservoir R. By increasing the fluid pressure of a hydraulic fluid within the pressure chamber 55 through the fluid pressure generated with the secondary master cylinder M2, the piston 51 is moved toward the storage chamber 54, thereby returning the brake fluid within the storage chamber 54 to the master cylinder M. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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