| 摘要 |
A master cylinder (14) includes a first piston (73), a second piston (83), and a cylinder(15) for housing the first piston (73) and the second piston (83) moving slidably in the axial direction. A first fluid pressure chamber (71), having a passage (77) communicating with a reservoir tank (26), generates the fluid pressure when communication with the reservoir tank is interrupted at displacement of the first piston (73) by a first stroke. Similarly, a second fluid pressure chamber (81), having a passage (87) communicating with the reservoir tank (26), generates the fluid pressure when communication with the reservoir tank is interrupted at displacement of the second piston (83) by a second stroke which is smaller than the first stroke. A stroke simulator (24) communicates with the fluid pressure chamber (81). A braking control apparatus is structured such that the second piston (83) is first displaced when a brake pedal is pressed. |
