Patent · US Active

Method for charging an intermediate circuit capacitor

US9531211B2 · kind B2 · utility

0Cited by

3References

9Claims

0Family size

Assignees

Robert Bosch GmbH · DE
SAMSUNG ELECTRONICS CO., LTD. · KR

Inventors

Ralph Schmidt · Bad Mergentheim, DE
Stefan Butzmann · Bünde, DE
Holger Fink · Stuttgart, DE

Key dates

Filing date	Nov 17, 2011
Grant date	Dec 27, 2016
Priority date	—
Expiry date	Jan 18, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/72
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The disclosure relates to a method for charging an intermediate circuit capacitor in an electric drive unit comprising an electric motor. The intermediate circuit capacitor is charged by an intermediate circuit current that is supplied by a battery. The output voltage of the battery is settable to one or more voltage values. A target value of the intermediate circuit current is determined, and an actual value of the intermediate circuit current is ascertained. The actual value of the intermediate circuit current is then compared with the target value of the intermediate circuit current. An optimal output voltage of the battery is determined on the basis of the comparison of the actual value of the intermediate circuit current with the target value of the intermediate circuit current. Then, the optimal output voltage of the battery is set.

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