Patent · US Active

Method for operating a current converter and current converter operating according to said method

US10715057B2 · kind B2 · utility

1Cited by

2References

9Claims

0Family size

Assignee

Valeo Siemens eAutomotive Germany GmbH · DE

Inventors

Qiong Gu · Erlangen, DE
Holger Hoffmann · Haan, DE
Thomas Slavik · Loveland, US

Key dates

Filing date	Sep 14, 2017
Grant date	Jul 14, 2020
Priority date	—
Expiry date	Sep 14, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/72
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

The invention relates to a method for operating a current converter, in particular of an electric machine, in which, for the or for each semiconductor switch of the current converter, a control signal (P′) for setting a switch-off speed (Anew) is generated, wherein an electric intermediate circuit voltage (Udc) of an intermediate circuit is measured and compared to a voltage threshold value (Uthresh), wherein an operating temperature (TB) of the respective semiconductor switch is measured and compared to a temperature threshold value (Tthresh), wherein a load current (Ic) switched by means of the respective semiconductor switch is measured and compared to a current threshold value (Ithresh), and wherein the control signal (P′) for setting the switch-off speed (Anew) is generated on the basis of the comparisons.

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