Patent · US Active

Method for operating an at least three-phase electric machine, used as a drive assembly in a motor vehicle, and control unit for an inverter

US9065366B2 · kind B2 · utility

2Cited by

4References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Holger Niemann · Ludwigsburg, DE
Roland Schleser · Riegelsberg, DE
Daniel Kanth · Ludwigsburg, DE
Andreas Heyl · Ludwigsburg, DE

Key dates

Filing date	May 13, 2011
Grant date	Jun 23, 2015
Priority date	—
Expiry date	May 9, 2032

Classification

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

Abstract

In a method for operating an at least three-phase electric machine used as a drive assembly in a motor vehicle, which is actuated via an inverter, the inverter including switching elements in the form of half bridges which are in each case electrically connected to a respective phase of the electric machine, when a first switching element of a first half bridge connected to a first phase is permanently closed/opened on account of failure, a second switching element of the first half bridge is permanently opened/closed and, in a first angular range of an electrical rotation, which is uninfluenced by the first phase, all switching elements of the additional half bridges are actuated in the usual manner.

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