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:
Jul. 09, 2002
Filed:
Dec. 22, 2000
Dirk Hofmann, Ludwigsburg, DE;
Martin Pfau, Weissach, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a hydraulic vehicle brake system ( ), having a hydraulic pump ( ) and a high-pressure hydraulic reservoir ( ) for external-force braking, as well as a conventional master cylinder ( ), which serves as a set-point brake force transducer for the external-force braking and serves the purpose of muscle-powered secondary braking if the external-force service brake system fails. To embody the vehicle brake system ( ) with an active pedal travel simulator, the invention proposes connecting the master cylinder ( ) to a low-pressure hydraulic reservoir ( ) via a disconnecting valve ( ) and to the high-pressure hydraulic reservoir ( ) via a return valve ( ).