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, 2017
Filed:
Apr. 23, 2013
Robert Bosch Gmbh, Stuttgart, DE;
Michele Hirsch, Esslingen, DE;
Ulrich Schuster, Berlin, DE;
Tino Merkel, Schwieberdingen, DE;
Andrea Deflorio, Marbach Am Neckar, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method () for controlling an inverter () using space-vector pulse width modulation, in particular to control an electric machine (), said inverter () being equipped with a plurality of controllable switches (S) and being designed to provide a polyphase electric current (IU, IV, IW), in particular to supply multiphase electric current to an electric machine (). In said method, a reference phase angle (alpha_R) is predefined, and the inverter () is controlled in such a way that a plurality of different successive switching states (V-V) is established for the switches (S) in order to provide the electric current (IU, IV, IW) in the form of a current space vector (I*). The inverter () is controlled in such a way that the current space vector (I*) is provided at a phase angle (alpha_I) which differs from the reference phase angle (alpha_R), a difference (delta_I) of the phase angle (alpha_I) from the reference phase angle (alpha_R) being determined according to a power loss (PA, PB, PC) and/or a temperature (TA, TB, TC) of at least one of the switches (S).