Anti-lock control apparatus

Details Anti-lock control apparatus Anti-lock control apparatus

1989-03-08

1990-06-05

Reger, Duane A.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

303 241, 303115, B60T 862

Patent

active

049308467

ABSTRACT:
An anti-lock control apparatus of this invention has modulators each of which is disposed at a point between said master cylinder and each set of front and rear brakes. Each modulator has a stepped piston in its cylinder. In the cylinder, are formed a front output fluid chamber and a rear output fluid chamber both of which follow the master cylinder. The front output fluid chamber is connected to the front brake, while the rear output fluid chamber is connected to the rear brake. The front output fluid chamber normally communicates with the rear output fluid chamber and, during anti-lock operation, the communication between the front output fluid chamber and the rear output fluid chamber is cut off by a cut-off valve portion. Thus, the fluid pressure of the rear brake can be maintained at the fluid pressure in the cut-off state.

REFERENCES:
patent: 4733921 (1988-03-01), Farr
patent: 4752104 (1988-07-01), Miyake
patent: 4755008 (1988-07-01), Imoto et al.
patent: 4758054 (1988-07-01), Brown

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