Hydraulic braking system

A hydraulic brake system having an anti-lock system (ABS) and traction control (ASR) for motor vehicles including a hydraulic unit with at least one control valve and a return pump having at least one pump element that is embodied as self-aspirating pump element and that is operative in a brake circ...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KARL-HEINZ WILLMANN, ROLAND HOLZMANN
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES TRANSPORTING VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A hydraulic brake system having an anti-lock system (ABS) and traction control (ASR) for motor vehicles including a hydraulic unit with at least one control valve and a return pump having at least one pump element that is embodied as self-aspirating pump element and that is operative in a brake circuit, which contains at least one drive wheel. A valve assembly serves to furnish brake pressure in ASR and each valve assembly comprises a respective charging valve embodied as a 2/2-way magnet valve and an electromagnetic reversing valve. In order that a low hydraulic power requirement can be attained in traction control, only the valve assembly is triggered, and is triggered such that for pressure buildup the electromagnetic reversing valve blocks fluid flow and the charging valve is opened, while for pressure holding both valves block fluid flow, and for pressure reduction the charging valve blocks fluid flow and the electromagnetic reversing valve is opened.