| 摘要 |
PROBLEM TO BE SOLVED: To suppress degradation in accuracy for control over a brake cylinder fluid pressure resulting from oscillation of a fluid pressure in an upstream side portion in response to actuation of a slip controller that is exerting an anti-lock control.SOLUTION: Oscillation of a fluid pressure in an upstream side portion is transferred to a control pressure chamber via a compression piston of a master cylinder and a control piston of a regulator. In relation to this, under an anti-lock control, a booster linear valve and a decompression linear valve are made open, a volume change of the control pressure chamber is permitted, and rigidity is made low. By doing so, the oscillation of the fluid pressure in the control pressure chamber is suppressed and the oscillation of the fluid pressure in a compression chamber is suppressed. As a result, during the anti-lock control, it is possible to suppress the degradation in accuracy for controlling the fluid pressure of a brake cylinder and appropriately avoid an increase in a braking distance. |
