Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1982-07-06
1984-11-13
Reger, Duane A.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303119, B60T 802
Patent
active
044821921
ABSTRACT:
An anti-skid braking apparatus having a multiple-circuit brake force amplifier is proposed. The brake force amplifier is followed by a 3/2-way magnetic valve which is, inserted into a brake circuit (I) which is closed per se. After a predetermined pressure threshold has been exceeded, the 3/2-way magnetic valve switches over and connects an open brake circuit (II) with the closed brake circuit (I). In this manner, it is advantageously possible to use a closed brake circuit (I), thus enabling the attainment of a small and lightweight structure of the brake force amplifier. It is furthermore easy to recognize defects in the system with the aid of a plurality of switches which are disposed in part on the brake force amplifier, and with the aid of an electronic switching device evaluating the switching signals of these switches. A test circuit for the switches is also possible with the aid of a logic circuit. The anti-skid braking apparatus is preferably applicable to motor vehicles of the medium weight class.
REFERENCES:
patent: 3999809 (1976-12-01), Inada et al.
patent: 4093313 (1978-06-01), Burckhardt
Greigg Edwin E.
Reger Duane A.
Robert & Bosch GmbH
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