Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1993-12-27
1994-12-20
Kashnikow, Andres
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
3031161, 3031191, B60T 832
Patent
active
053741129
ABSTRACT:
A brake fluid pressure control device has a wheel brake fluid pressure control valve having a discharge valve and provided in a main fluid passage extending from a master cylinder to wheel brakes. A discharged fluid reservoir is provided to temporarily store the brake fluid discharged from the discharge valve. A pump is provided to pump the brake fluid out of the discharged fluid reservoir and return it to the main fluid passage. A fluid supply passage branches from the main fluid passage at a point upstream of a flow return point from the pump and extends to the discharged fluid reservoir. A traction control changeover valve is provided to checking a fluid flow from the flow return point toward the master cylinder during traction control. A shutoff valve is provided to check a fluid flow from the fluid supply passage to the discharged fluid reservoir while the pressure in the master cylinder is being applied. The shutoff valve is a stroke responsive type check valve for checking a fluid flow from the fluid supply passage toward the discharged fluid reservoir if the amount of the brake fluid in the discharged fluid reservoir exceeds a predetermined level.
REFERENCES:
patent: 5015043 (1991-05-01), Resch
patent: 5026127 (1991-06-01), Arikawa
patent: 5028096 (1991-07-01), de la Broise
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patent: 5123716 (1992-06-01), Willmann
patent: 5131729 (1992-07-01), Wetzel
patent: 5141296 (1992-09-01), Arikawa
patent: 5183317 (1993-02-01), Gutzeit
patent: 5195809 (1993-03-01), Burgdorf
patent: 5209553 (1993-05-01), Burgdorf et al.
patent: 5271667 (1993-12-01), Takata et al.
Takata Koji
Yoshino Masato
Kashnikow Andres
Sumitomo Electric Industries Ltd.
Young Lee W.
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