Patent · US Active

Method and device for determining the motor constant of an electric motor

US8547042B2 · kind B2 · utility

0Cited by

13References

12Claims

0Family size

Assignee

KALTENBACH & VOIGT GMBH · DE

Inventors

Richard Bürk · Reichenau, DE
Thomas Bischof · Aachen, DE

Key dates

Filing date	Apr 14, 2008
Grant date	Oct 1, 2013
Priority date	—
Expiry date	Sep 24, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH02P23/14
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method and device for determining the motor moment constant kM of an electric motor by measuring motor parameters on the running motor. For reduction of the previously considerable measuring effort it is proposed that firstly the generator voltage UEMK produced by the motor is measured, and in that the motor moment constant kM is calculated by division of the generator voltage UEMK and the speed of rotation fMot of the motor, taking into consideration at least one further constant. The method and the device are suitable for DC motors and for 3-phase synchronous motors.

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