Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1995-07-14
1996-07-30
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
3031191, 3031132, 303 10, B60T 832
Patent
active
055404880
ABSTRACT:
The present invention is directed to a hydraulic braking system having a hydraulic braking pressure circuit for braking each wheel of an automotive vehicle with brake fluid fed to a wheel cylinder operatively mounted on the wheel. The system includes an auxiliary pressure source which has an inlet for introducing the brake fluid and an outlet connected to the pressure circuit for discharging thereinto the pressurized brake fluid. A circulation passage is disposed between the outlet and the inlet for communicating with each other. An auxiliary valve is disposed in the circulation passage so as to open or close the passage. An auxiliary reservoir is connected to the circulation passage between the valve and the inlet of the source. The auxiliary reservoir has a capacity for storing a predetermined amount of brake fluid. And, a controller is provided for driving the source and actuating the valve so as to open or close the circulation passage. Accordingly, the brake fluid discharged from the pressure source is fed into the pressure circuit when the valve closes the passage, while the brake fluid discharged from the pressure source is circulated in the circulation passage via the valve when the valve opens the passage.
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patent: 5472266 (1995-12-01), Volz et al.
Nishii Michiharu
Terazawa Tadashi
Aisin Seiki Kabushiki Kaisha
Butler Douglas C.
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