Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1995-05-25
1996-07-02
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
3031162, 3031191, 303900, B60T 832
Patent
active
055315143
ABSTRACT:
In a hydraulic brake system for a vehicle, the brake fluid in a first wheel brake and the brake fluid in a second wheel brake, which are hydraulically connected to a pressure generating chamber of a master cylinder, are caused to individually flow into a low back pressure reservoir with the aid of an electromagnetic change-over valve and electromagnetic cut-off valves. The brake fluid in the low back pressure reservoir is caused to flow through a check valve and an orifice into the first wheel brake and through another check valve and another orifice into the second first wheel brake by the operation of a pump which is driven by an electric motor. With the pump in operation, the electromagnetic cut-off valves are individually operated so that the first and second wheel brakes are decreased or reincreased in hydraulic pressure. Thus, the system is low in manufacturing cost, being operable with only one pump and only one low back pressure reservoir.
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Kusano Akihito
Nishii Michiharu
Noda Yoshiki
Toda Hiroshi
Aisin Seiki Kabushiki Kaisha
Butler Douglas C.
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