| 摘要 |
PROBLEM TO BE SOLVED: To provide desired pedal feeling without being influenced by fluctuation of a characteristic of a stroke simulator. SOLUTION: A stroke simulator portion 92 is provided with a stroke simulator 102. The stroke simulator 102 has a piston 104 partitioning the first fluid chamber 108 communicating to a master cylinder from the second fluid chamber 110 communicating to a reservoir tank via a solenoid valve 120. The piston 104 is energized to a first fluid chamber 108 side by a coil spring 114. Flowing-in of brake fluid to the first fluid chamber 108 is allowed or prohibited in responce to opening or closing of the solenoid valve 120. Desired stroke-master pressure relation is provided thereby by duty control of opening/closing for the solenoid valve 120. |
