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:
May. 02, 2006
Filed:
Jul. 25, 2003
Stefan Koch, Kappelrodeck, DE;
Peter Buerk, Lichtenau-Grauelsbaum, DE;
Stefan Koch, Kappelrodeck, DE;
Peter Buerk, Lichtenau-Grauelsbaum, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a circuit arrangement and a method for operating an electric motor in a direct voltage source, in particular for operating a permanent-magnet-excited DC motor in the direct voltage network of a motor vehicle, having a rotary position transducer () for detecting the rotary position of the rotor (), and having an electronic commutation controller () for switching over the current in the armature winding of the stator () as a function of the position of the rotor (). It is proposed that the rotary position transducer () is positioned relative to the stator () for an early commutation, and that the actual commutation time can be set by means of a delay correction, ascertained by measurement separately for each motor (), in the electronic commutation controller ().