| 主权项 |
1. A braking device for a vehicle comprising:
a pressure generator which includes a master piston, a master cylinder, a master chamber, and a servo chamber, the master chamber and the servo chamber being formed in the master cylinder, the master piston being disposed in the master cylinder and moved in response to an operation of a brake actuating member to develop a hydraulic pressure of brake fluid in the master chamber as a function of a braking effort on the brake actuating member; a servo unit which develops a hydraulic pressure in the servo chamber as a function of the braking effort on the brake actuating member to exert a hydraulic pressure that is a function of the hydraulic pressure in the servo chamber on the master piston; a wheel cylinder to which the brake fluid is delivered from the master cylinder to produce a frictional braking force; a regenerative braking system which works to produce a regenerative braking force; a dead stroke mechanism which includes a hollow cylinder, a rear wall, a stroke chamber, a front wall, a first flow path, and a reservoir, the rear wall being moved forward within the hollow cylinder in response to the operation of the brake actuating member, the front wall being disposed in front of the rear wall to be movable within the hollow cylinder and defining the stroke chamber between itself and the rear wall within the hollow cylinder, the front wall being moved forward directly by movement of the rear wall or by a hydraulic pressure within the stroke chamber to move the master piston forward, the reservoir communicating with the stroke chamber through a first flow path; an electromagnetic valve which is disposed in the first flow path, the electromagnetic valve being closed when deenergized; and a stroke chamber pressure regulator which regulate a hydraulic pressure in the stroke chamber in response to a change in hydraulic pressure input into the stroke chamber. |
