Modularly designed pressure control device of a fluid pressure brake system of a vehicle

US8918262B2 · kind B2 · utility

Assignee

• KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH · DE

Inventors

• Friedbert Roether · Cleebronn, DE
• Adnan Mustapha · Maulbronn, DE
• Gerhard Wieder · Besigheim, DE
• Dirk Brenner · Stuttgart, DE

Key dates

• Filing date: Mar 8, 2011
• Grant date: Dec 23, 2014
• Expiry date: Sep 28, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T13/683
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A pressure control device of a vehicle, including a pressure controller of a fluid pressure brake system for brake slip-dependent control, including a relay valve having a supply port supplied by a supply pressure, a venting port connected to a pressure sink, a control port and at least two working ports, in which a working port is assigned to at least one brake cylinder and the other working port is assigned to at least one brake cylinder of another wheel, in which each working port of the relay valve is connected to a 2/2-way valve controlled by a control unit and assigned to a respective vehicle side and establishes a connection between the relevant working port and the assigned brake cylinder or blocks the connection, depending on control unit actuation, and in which the control port of the relay valve is connectable to a brake control pressure formed in accordance with the braking input, to a supply pressure of a pressure reservoir or to a pressure sink by a valve system formed by one 3/2-way or two 2/2-way solenoid valves and controlled by the control unit.