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:
Mar. 28, 2006
Filed:
Feb. 27, 2003
Ralph Tobias, Baden-Baden, DE;
Stefan Beyer, Buehl, DE;
Joerg Sutter, Gaggenau, DE;
Ingo Immendoerfer, Buehl, DE;
Heiko Frey, Kuppenheim, DE;
Ralph Tobias, Baden-Baden, DE;
Stefan Beyer, Buehl, DE;
Joerg Sutter, Gaggenau, DE;
Ingo Immendoerfer, Buehl, DE;
Heiko Frey, Kuppenheim, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An electronically commutatable motor with a preferably three-phase excitation winding in the stator, which, in order to generate a torque for a permanent magnet rotor, can be connected to a direct current source via a motor control unit and a commutation device equipped with semiconductor switches. The motor is intended for use as a drive motor of a safety-critical auxiliary drive unit in a motor vehicle, in particular as the drive motor of an electrical power-assisted steering unit, wherein additional or existing switching means suppress or at least partially compensate for a braking moment that is generated by the motor in the event of a winding short and/or a malfunction in the semiconductor switches of the commutation device.