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:
Aug. 30, 2022
Filed:
Nov. 22, 2017
Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Würzburg, Würzburg, DE;
Hans-Joachim Schroeder, Wiesbaden, DE;
Axel Steinshorn, Wittighausen, DE;
Armin Dietz, Rückersdorf, DE;
Abstract
A method for operating a brushless electric motor of a motor vehicle, particularly an electromotive refrigerant compressor, with two sub-motors arranged in sections and each comprising n-phases, by means of a converter corresponding to the number of phases of the electric motor. On the basis of a performance requirement, first switching points are determined for the n-phases, of one of the sub-motors, and on the basis of the performance requirement, second switching points are determined for the n-phases of the other sub-motor. The second switching points are shifted by a first phase angle and the converter is controlled on the basis of the first switching points and the second switching points. The first phase angle is selected such that a resulting current flow over the converter is smaller than a first threshold value. A unit of a motor vehicle, comprising a brushless electric motor is also disclosed.