Vehicle brake pressure controller

Details Vehicle brake pressure controller Vehicle brake pressure controller

1996-05-07

1997-12-16

Young, Lee W.

Fluid-pressure and analogous brake systems

Speed-controlled

Automatic braking including speed governor or hydraulic...

303139, 303 841, B60T 858

Patent

active

056976801

ABSTRACT:
SM valves 50FL, 50FR are in an open position which opens a line when electric power is OFF and are switched to a closed position when energized by a brake controller 30. These SM valves 50FL, 50FR are formed integrally with the pressure regulation valves (here, the closed position refers to the position (pressure regulation position) where the lines are opened when pressure applied from W/C 2FL, 2FR side is over a predetermined value and the SM valves function as pressure regulation valves). Also, restrictions 50FLS, 50FRS are provided across a switching region where the opening and closing of the SM valve 50FL, 50FR is executed in the M/C 234 side to apply pressure between the restrictions 50FLS, 50FRS and the switching region. In this way, aeration which occurs when high pressure fluid is returned to the M/C side is prevented and thus, vapor locks can be prevented.

REFERENCES:
patent: 4715667 (1987-12-01), Otsuki et al.
patent: 4846535 (1989-07-01), Kuwana et al.
patent: 4865399 (1989-09-01), Atkins et al.
patent: 4900102 (1990-02-01), Jonner et al.
patent: 4952002 (1990-08-01), Arikawa et al.
patent: 5271667 (1993-12-01), Takata et al.
patent: 5558414 (1996-09-01), Kubota

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