Patent · US Active

Method and device for checking an electrical value of an electric machine

US11489466B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

Carl Zeiss Industrielle Messtechnik GmbH · DE

Inventors

Guenter Grupp · Donzdorf, DE
Otto Ruck · Ellwangen (Jagst), DE
Peter Uhl · Unterschneidheim, DE
Thomas Maier · Wien, AT

Key dates

Filing date	Dec 20, 2017
Grant date	Nov 1, 2022
Priority date	—
Expiry date	Jan 6, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH02M1/0009
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a method for checking an electrical value of an electric machine, in particular an electric machine of a coordinate measuring device. The electric machine has an electric drive comprising a stator and a rotor. The method includes the steps of: detecting a value of a drive current delivered to the electric drive for driving the rotor, detecting a measured value of an electrical input variable of the electric machine, determining a calculated value of the electrical input variable on the basis of the detected value of the drive current and on the basis of a performance model of the electric machine, and determining a comparison value on the basis of the detected measured value and the calculated value of the electrical input variable, in order to check the detected value of the drive current.

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