| 摘要 |
PROBLEM TO BE SOLVED: To perform bleeding of a back face fluid pressure controller connected to a back face chamber at a rear part of a pressure piston of a master cylinder at a state that air-containing hydraulic fluid is not supplied to the back face chamber.SOLUTION: When a bleeding instruction is issued, a booster linear valve 160 is switched to an open state, a pump device 106, a high-pressure piping 102, a control pressure chamber 122, a reservoir 52 are communicated, and a bleeding path 250 is formed. The pump device 106 is started at a state that fluid pressure of an accumulator 108 is approximately at the atmospheric pressure, hydraulic fluid is distributed, and discharged to the reservoir 52. Fluid pressure of the bleeding path 250 is low, the hydraulic fluid can be distributed at a state that an operation of a regulator 97 is prevented, and bleeding can be performed without supply of air-containing hydraulic fluid to a rear face chamber 66. |
