Patent · US Active

Drive method with shifting of the switching frequency and drive device

US9446668B2 · kind B2 · utility

1Cited by

3References

12Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Georg Bachmaier · Birkenfeld, DE
Christian Bachmann · Hersbruck, DE
Dominik Bergmann · Sachsenkam, DE
Marco Cyriacks · Hersbruck, DE
Matthias Gerlich · Munich, DE
Guillaume Pais · Birkenfeld, DE
Alexandru Popescu · Lisse, NL

Key dates

Filing date	Aug 21, 2013
Grant date	Sep 20, 2016
Priority date	—
Expiry date	Aug 21, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/72
WIPO fieldTransport
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.