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:
Feb. 18, 2014
Filed:
Oct. 20, 2006
Uwe Bensch, Hannover, DE;
Henning Förster, Nordstemmen, DE;
Bernd-joachim Kiel, Wunstorf, DE;
Wilfried Menze, Springe, DE;
Hartmut Rosendahl, Hannover, DE;
Otmar Struwe, Hannover, DE;
Uwe Bensch, Hannover, DE;
Henning Förster, Nordstemmen, DE;
Bernd-Joachim Kiel, Wunstorf, DE;
Wilfried Menze, Springe, DE;
Hartmut Rosendahl, Hannover, DE;
Otmar Struwe, Hannover, DE;
WABCO GmbH, Hannover, DE;
Abstract
An electro-pneumatic brake control device is provided for controlling the parking brake of a vehicle having compressed-air-actuated brake cylinders, at least one of which is a spring brake cylinder with a spring store part. Valve devices place the brake control device into various operating states. In a first operating state, the valve devices are at least partially supplied with current and switched such that a compressed air line to the spring store part of the spring brake cylinder is aerated. In a second state, the valve devices are at least partially supplied with current and switched such that the compressed air line is deaerated. In a third state, which can be activated in the event of failure of the electrical energy supply of the brake control device, the valve devices are switched to a currentless state such that the compressed air line is automatically deaerated in throttled manner.