Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1986-01-13
1987-05-05
Reger, Duane A.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303 92, 303114, B60T 810
Patent
active
046626875
ABSTRACT:
An anti-skid brake system and anti-drive-slip system having a master cylinder, at least one inherently safe closed brake circuit which includes anti-skid valves and wheel brakes, a booster cylinder associated with the master cylinder and in which a booster piston is displaceable, a pressure supply apparatus, a valve connected thereto, which is actuatable by means of a brake pedal for controlling brake pressures. A locking piston cylinder connected to the control valve, a sensing piston, which is coupled to the brake pedal and which passes into the locking piston cylinder, and a change-over valve assembly. This change-over valve assembly is embodied such that for normal braking operation, it connects the booster cylinder with the control valve. If there is a danger of skidding, or wheel lock, this change-over valve assembly disconnects the booster cylinder from the control valve and connects it to a return line in order to relieve pressure and reduce the braking pressure. If drive slip arises, the change-over valve assembly connects the booster cylinder with the pressure supply apparatus.
REFERENCES:
patent: 4565411 (1986-01-01), Seiber
Greigg Edwin E.
Reger Duane A.
Robert & Bosch GmbH
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