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. 21, 2012
Filed:
Dec. 22, 2006
Chi-thuan Cao, Korntal-Muenchingen, DE;
Dirk Hofmann, Stuttgart, DE;
Herbert Vollert, Vaihingen/Enz, DE;
Willi Nagel, Remseck/Hochdorf, DE;
Bertram Foitzik, Ilsfeld, DE;
Bernd Goetzelmann, Sindelfingen, DE;
Chi-Thuan Cao, Korntal-Muenchingen, DE;
Dirk Hofmann, Stuttgart, DE;
Herbert Vollert, Vaihingen/Enz, DE;
Willi Nagel, Remseck/Hochdorf, DE;
Bertram Foitzik, Ilsfeld, DE;
Bernd Goetzelmann, Sindelfingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a selective freewheeling mechanism for developing an electromechanical vehicle brake (service brake) into a parking brake. The freewheeling mechanism according to the invention has an outer ring and a locking element cage which are configured as an electric motor with a rotor and a stator. The rotor and stator can be swiveled in relation to each other when a coil is supplied with current. Due to a symmetric design, the freewheeling mechanism is advantageously insensitive to acceleration forces.