Device for the generation of auxiliary pressure for slip-control

Details Device for the generation of auxiliary pressure for slip-control Device for the generation of auxiliary pressure for slip-control

1990-04-16

1991-07-16

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

303119, 188356, B60T 844, B60T 1352

Patent

active

050319701

ABSTRACT:
A device for the generation of auxiliary pressure for slip-controlled brake systems with a pedal-force-operated brake booster connected to a tandem master cylinder (19). A pressure is transmittable in the brake booster housing (7) of the brake booster to the wheel brakes connected downstream. This pressure is controlled by an electromagnetically operated control valve (5) in that the pressure as a hydraulic pressure is influenced by the pneumatic actuation of a servo piston (2). The servo piston (2) is fastened on an auxiliary pressure control piston (1) within the brake booster housing (7) and the influence is a function of thermodynamic state variables of different energy sources (11). Thus, a device is provided for the generation of auxiliary pressure which, while using simple constructional configuration, provides an operationally reliable and economical use of available thermodynamic state variables such as the atmospheric pressure and of the gas throttling of an internal combustion engine.

REFERENCES:
patent: 4630706 (1986-12-01), Takayama et al.
patent: 4778225 (1988-10-01), Rudolph et al.
patent: 4819996 (1989-04-01), Belart et al.
patent: 4828337 (1989-05-01), Wagner et al.
patent: 4900101 (1990-02-01), Becker et al.

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