Braking power generator for hydraulic vehicle brake system, has control valve that is mechanically controlled by pedal operation to produce braking power based on pressure difference between operating chamber and vacuum chamber

摘要

The generator (10) has a pedal counteracting force simulation mechanism (80) coupled to a power input portion (56) and to an actuating power producing mechanism. The pedal counteracting force simulation mechanism has a control valve (18) and a chamber arrangement. The chamber arrangement has a vacuum chamber (40) and an operating chamber (42) separated by a movable wall (36). The control valve is mechanically controlled by pedal operation to produce braking power based on the pressure difference between the operating chamber and vacuum chamber. The power input portion is arranged in a housing (14), and coupled to a brake pedal (58). A master brake cylinder (16) has a movable primary piston (66) for controlling a primary pressure chamber (70) in producing hydraulic pressure. The actuating force power producing mechanism generates actuating power for moving the primary piston. An independent claim is included for the brake assembly for motor vehicle.