Hydraulic brake system

Details Hydraulic brake system Hydraulic brake system

1997-12-10

2000-05-09

Nguyen, Hoang

Power plants

Pressure fluid source and motor

Pulsator

60582, 60592, B60T 1120

Patent

active

060587059

ABSTRACT:
The invention relates to a hydraulic brake system having a tandem master cylinder as the brake force set-point value transducer for braking by external force, downstream of which are disconnection valves for hydraulically disconnecting the master cylinder from wheel brake cylinders for external force braking. To achieve a pedal travel when the disconnection valves are closed, the invention proposes a lengthened idle travel of the pistons of the master cylinder, for instance by increasing a valve opening stroke of central valves integrated with the pistons. A travel-dependent pedal force is realized with simulator spring elements that act upon the pistons.

REFERENCES:
patent: 4490977 (1985-01-01), Fulmer
patent: 4724674 (1988-02-01), Fulmer
patent: 5031968 (1991-07-01), Takata
patent: 5036665 (1991-08-01), Brown, Jr.
patent: 5161375 (1992-11-01), Crumb et al.
patent: 5332302 (1994-07-01), Maas
Bosch Technische Berichte, 1986/87, pp. 243/244/145.
SAE/Electrohydraulic Brake System--The First Approach to Brake-By-Wire Technology pp. 107/108 and 112, Aug. 1996.

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