Patent · US Active

Method and device for operating an electric machine of a motor vehicle drive train

US9649953B2 · kind B2 · utility

1Cited by

5References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

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

Key dates

Filing date	Oct 4, 2011
Grant date	May 16, 2017
Priority date	—
Expiry date	Jun 12, 2032

Classification

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

Abstract

A method for operating an electrical machine, in particular for making available drive power for a drive train of a motor vehicle, the electrical machine being controlled by several phase currents, the method including sensing an electrical variable that represents the torque delivered by the electrical machine; and monitoring the torque. A degradation of the electrical machine is taken into consideration in the monitoring of the torque.

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