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:
Jul. 02, 2024
Filed:
Jul. 27, 2020
Valeo Siemens Eautomotive Germany Gmbh, Erlangen, DE;
Panagiotis Mantzanas, Erlangen, DE;
Daniel Kübrich, Schlüsselfeld, DE;
Thomas Dürbaum, Baiersdorf, DE;
Alexander Bucher, Nuremberg, DE;
Alexander Pawellek, Erlangen, DE;
Christian Hasenohr, Erlangen, DE;
Harald Hofmann, Nuremberg, DE;
Valeo Siemens eAutomotive Germany GmbH, Erlangen, DE;
Abstract
A control device () for an inverter () that feeds an electric machine (), wherein the control device () is configured to provide pulse-width modulated switching signals () with a carrier frequency to drive switching elements () of the inverter (), wherein the control device () is configured to determine the carrier frequency depending on operating point information that describes an operating point defined by a rotation speed and a torque of the electric machine () and, as the rotation speed increases and the magnitude of the torque falls, to increase the carrier frequency within an operating region () that extends within a rotation speed interval with a lower rotation speed limit () differing from zero and with an upper rotation speed limit () lying in a power-limiting operating region () or field-weakening operating region.