| 摘要 |
PROBLEM TO BE SOLVED: To suppress an inconvenience caused at switching between a first state and a second state in a brake fluid pressure control device capable of being switched between the first state where a brake cylinder fluid pressure is controlled based on the fluid pressure of a pump device and the second state where a fluid pressure corresponding to a brake operating force is supplied. SOLUTION: When a first switching condition is satisfied when a state is switched from a first state to a second state, a master shut-off valve 152 is switched to an open state and, after a set time is passed, a master shut-off valve 162 is switched to an open state. Thus, a fluid pressure difference between a brake cylinder 28 and a second hydraulic pressure source 14 when the master shut-off valve 162 is switched to the open state can be decreased, and the amount of variation of the brake cylinder 28 can be suppressed. In addition, an inconvenience at the time of switching can be suppressed such that an increase in hydraulic pressure difference between the brake cylinders 20 and 28 can be avoided. |
