Anti-locking apparatus

Details Anti-locking apparatus Anti-locking apparatus

1980-03-20

1982-08-31

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 804

Patent

active

043469434

ABSTRACT:
An anti-locking apparatus is proposed which is intended for a hydraulic brake system having a foot-actuated brake control valve and is intended for use in passenger vehicles. The brake control valve permits pressure medium to flow from a pressure source to the primary side of a hydraulic main cylinder, which is associated with a central switching valve embodied as a 3/2-way valve and at least one 2/2-way valve for the purpose of controlling the anti-locking function. The secondary side of the main cylinder, or in two-brake circuits, the main cylinders, is associated with a check valve device by way of which the secondary side can be relieved when the check valve device is opened after the switchover of the central switching valve. In this manner, the functioning of the anti-locking apparatus is improved because it is possible to perform the pressure reduction down to the level of atmospheric pressure. This is important at low road adhesion values.

REFERENCES:
patent: 3639009 (1972-02-01), Klein et al.
patent: 3731979 (1973-05-01), Mikaila
patent: 3874742 (1975-04-01), Takayama
patent: 4111496 (1978-09-01), Leiber
patent: 4231620 (1980-11-01), Leiber

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