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:
Sep. 20, 2016
Filed:
Aug. 21, 2013
Siemens Aktiengesellschaft, München, DE;
Georg Bachmaier, München, DE;
Christian Bachmann, München, DE;
Dominik Bergmann, Sachsenkam, DE;
Marco Cyriacks, München, DE;
Matthias Gerlich, München, DE;
Guillaume Pais, München, DE;
Alexandru Popescu, München, DE;
SIEMENS AKTIENGESELLSCHAFT, , DE;
Abstract
A method for driving a vehicle comprising at least two motors is provided. If a plurality of motors are fed from an intermediate circuit via inverters, the current in the intermediate circuit has a plurality of harmonics (−5th, −3th, −1st, +1st, +3rd, +5th). To prevent coupling capacitors of the intermediate circuit becoming over-burdened, the switching frequency of the inverters is shifted in such a manner that the harmonics no longer fall into a resonance range.