Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1987-09-17
1989-07-04
Kashnikow, Andres
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303116, B60T 836, B60T
Patent
active
048445584
ABSTRACT:
A brake fluid pressure control apparatus in a skid control sytstem for a vehicle includes an electromagnetic change-over valve arranged in a conduct between a master and a wheel cylinder for the wheel. The electromagnetic change-over valve receives control signals of a control unit measuring the skid condition of the wheel to control the fluid pressure to the wheel cylinder. A hydraulic reservoir which, when the brake fluid pressure to the wheel cylinder is decreased with control of the electromagnetic change-over valve, reserves the brake fluid discharged through the electromagnetic change-over valve from the wheel cylinder and a fluid pressure pump supplies the brake fluid from the hydraulic reservoir into the wheel cylinder. A two-position electromagnetic change-over valve enables a change-over into a cut-off state or a communicating state. The valve is a conduit between the hydraulic reservoir and the fluid pressure pump.
REFERENCES:
patent: 4278300 (1981-07-01), Bachet
patent: 4395073 (1983-07-01), Arkawa et al.
patent: 4462642 (1984-07-01), Leiber
Akakabe Yoshifumi
Boening Bernward
Ishii Akira
Maehara Katsumi
Kashnikow Andres
Newholm Timothy
Nippon ABS, Ltd.
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