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:
Dec. 18, 2018
Filed:
Aug. 05, 2014
Robert Bosch Gmbh, Stuttgart, DE;
Dirk Lamprecht, Stuttgart-Rohr, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method for determining the phase currents through phase windings () and an excitation current through an excitation winding () of an electrical machine (), wherein an excitation winding () is connected between a star point () of the phase windings () and a defined reference potential, the method comprising the following steps: —periodic driving of the electrical machine () with a predefined pulse pattern (); —determining a respective measurement current (I) in a plurality of temporal measuring windows () of a measuring period (), wherein the measurement currents (I) correspond to currents through one of the phase windings () and through one or more parallel connections of a plurality of the phase windings (); and —determining the phase currents and the excitation current by evaluating the measurement currents (I) determined during the measuring period ().