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:
Nov. 16, 2010
Filed:
Feb. 01, 2008
Uwe Bensch, Hannover, DE;
Heinrich Diekmeyer, Barsinghausen, DE;
Jörg Helmer, Vogt, DE;
Bernd-joachim Kiel, Wunstorf, DE;
Andreas Schäl, Nordstemmen, DE;
Frank Van Son, Tilburg, NL;
Uwe Bensch, Hannover, DE;
Heinrich Diekmeyer, Barsinghausen, DE;
Jörg Helmer, Vogt, DE;
Bernd-Joachim Kiel, Wunstorf, DE;
Andreas Schäl, Nordstemmen, DE;
Frank Van Son, Tilburg, NL;
WABCO GmbH, Hannover, DE;
Abstract
A parking brake module for a pressure medium-operated brake system of a vehicle having a parking brake function enabled by at least one spring brake cylinder includes a first valve device that increases the amount of pressure medium and has an inlet that can be connected to a pressure medium reservoir, an outlet that can be connected to at least one spring-loaded part of a spring brake cylinder, and a control input connected to a control line. A second valve device encompasses at least one first connection used as a trailer control valve connection and can be connected to a trailer control valve to control a trailer brake. To provide a valve concept for different vehicle configurations, particularly including an anti jackknifing function, pressure prevailing at the first connection can be adjusted regardless of pressure prevailing in the pressure medium reservoir and at the outlet of the first valve device.