Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1996-08-21
1999-07-13
Graham, Matthew C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
3031162, B60T 848
Patent
active
059216379
ABSTRACT:
An antilock brake liquid-pressure control apparatus includes first and second liquid-pressure control mechanisms 3A and 3B, and a liquid-pressure returning mechanism 4. A variable volume chamber 14 of the liquid-pressure control mechanism 3 communicates with the wheel cylinders, and with a primary pressure chamber 2a of a master cylinder through a cut valve 10 which closes its flow path only when an antilock brake control is performed. A liquid-pressure control chamber 13 communicates with a liquid-pressure pump 7 through a hold valve 5, and with a reservoir 8 through a decay valve 6. An input liquid chamber 17 of the liquid-pressure returning mechanism 4 communicates with a discharge port of the liquid-pressure pump. An output liquid chamber 18 thereof communicates with the primary pressure chamber 2a. In a pressure reduction mode of an antilock brake control, the brake liquid is sucked from the liquid-pressure control chamber 13 by the liquid-pressure pump 7, and accumulatively pressurized in the input liquid chamber 17, and the brake liquid is returned from the output liquid chamber 18 to the primary pressure chamber 2a. In a pressure reapplication mode, the brake liquid is supplied from the input liquid chamber 17 to the liquid-pressure control chamber 13, to thereby reapply a pressure to the brake.
REFERENCES:
patent: 3666328 (1972-05-01), Williams
patent: 3722960 (1973-03-01), Menar
patent: 3774976 (1973-11-01), Parsons
patent: 3865440 (1975-02-01), Ostwald
patent: 3877758 (1975-04-01), Kuwana
patent: 3936095 (1976-02-01), Every
patent: 4017126 (1977-04-01), Ohta
patent: 4350396 (1982-09-01), Mortimer
patent: 4492413 (1985-01-01), Belart et al.
patent: 4765692 (1988-08-01), Miyake
patent: 4779935 (1988-10-01), Kuwana et al.
patent: 4865398 (1989-09-01), Takeuchi et al.
patent: 4892362 (1990-01-01), Takata
patent: 5131729 (1992-07-01), Wetzel
patent: 5213399 (1993-05-01), Burgdorff et al.
patent: 5261730 (1993-11-01), Steiner et al.
patent: 5290098 (1994-03-01), Burgdorf et al.
patent: 5322363 (1994-06-01), Sekiguchi et al.
patent: 5330258 (1994-07-01), Hoshoya et al.
patent: 5462343 (1995-10-01), Yoshida et al.
patent: 5509729 (1996-04-01), Zaviska et al.
patent: 5518306 (1996-05-01), McCann et al.
patent: 5590936 (1997-01-01), Reuter
Akebono Brake Industry Co. Ltd.
Graham Matthew C.
LandOfFree
Antilock brake liquid-pressure control apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Antilock brake liquid-pressure control apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antilock brake liquid-pressure control apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2269639