The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2014
Filed:
Mar. 08, 2011
Friedbert Roether, Cleebronn, DE;
Adnan Mustapha, Maulbronn, DE;
Gerhard Wieder, Besigheim, DE;
Dirk Brenner, Stuttgart, DE;
Friedbert Roether, Cleebronn, DE;
Adnan Mustapha, Maulbronn, DE;
Gerhard Wieder, Besigheim, DE;
Dirk Brenner, Stuttgart, DE;
Knorr-Bremse Systeme fuer Nutzfahrzeuge GmbH, Munich, DE;
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.