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:
Jan. 06, 2015
Filed:
Sep. 04, 2008
Joachim Funke, Otzberg, DE;
Rüdiger Puff, Hünstetten-Wallbach, DE;
Jürgen Völkel, Frankfurt am Main, DE;
Joachim Funke, Otzberg, DE;
Rüdiger Puff, Hünstetten-Wallbach, DE;
Jürgen Völkel, Frankfurt am Main, DE;
Abstract
A system and method for an electromechanically actuable parking brake for motor vehicles, which is embodied as a drum brake of the 'duo-servo' type. The parking brake has a brake actuating device which can be actuated by an electromechanical actuator, is designed as an expander element and acts on two brake shoes, the expander element being supported via a spring energy storage device, may be designed as a diaphragm spring assembly, and being spreadable by a predetermined length of travel, when the parking brake is actuated, to apply an application force. In order to provide a sufficiently large hot parking travel, the length of travel travelled by the expander element to apply the application force when the parking brake is actuated can be moved as a function of at least one motor vehicle state parameter.