Patent · US Active

Method for operating a drive unit, and a drive unit

US8786226B2 · kind B2 · utility

2Cited by

17References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ulrich Vollmer · Weilheim, DE
Ekkehard Hoffmann · Hamburg, DE

Key dates

Filing date	Aug 10, 2010
Grant date	Jul 22, 2014
Priority date	—
Expiry date	Jan 29, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/64
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In a method for operating a drive unit having an electric machine, in a normal operating mode the electric machine is operated with current provided by an inverter on at least two phases, and particular phase voltages for the electric machine are set on the phases. Upon an occurrence of an error of the inverter, the inverter is operated in an emergency operating mode for the further operation of the electric machine.

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