Patent · US Active

Method for determining a correction value which describes an angular difference between an assumed and an actual position of a d-axis, control device and inverter

US11539318B2 · kind B2 · utility

0Cited by

1References

14Claims

0Family size

Assignee

Valeo Siemens eAutomotive Germany GmbH · DE

Inventors

Markus SEILMEIER · Fürth, DE
Andreas Held · Erlangen, DE
Andreas Walter · Egloffstein, DE
Hans-Georg Köpken · Erlangen, DE

Key dates

Filing date	Sep 20, 2019
Grant date	Dec 27, 2022
Priority date	—
Expiry date	Sep 20, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH02P21/18
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method determines a correction value for a control device for an electric machine, which describes an angular difference between a position of a d-axis of the electric machine and an actual position of the d-axis. The correction value is determined in a rotating state of a rotor of the electric machine as a function of a d voltage value describing a d component of a stator voltage specified by the control device in the initial configuration, of a q voltage value describing a q component of the stator voltage specified by the control device in the initial configuration, of a flux value describing a magnetic flux of the rotor, a speed value describing the speed of the rotor in the rotating state, and of a calibration value describing a speed-dependent voltage error of the d component of the stator voltage.

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