Electricity: motive power systems – Positional servo systems – With particular 'error-detecting' means
Reexamination Certificate
2006-02-14
2006-02-14
Fletcher, Marlon T. (Department: 2837)
Electricity: motive power systems
Positional servo systems
With particular 'error-detecting' means
C318S648000, C318S650000, C318S432000, C318S433000, C318S434000, C388S930000
Reexamination Certificate
active
06998812
ABSTRACT:
A method for determining the mass moment of inertia of an electric motor drive system of a machine, having a drive motor and further drive elements arranged downstream of the drive motor. The method includes a) determining a compensation current, which compensates losses occurring at a constant speed of the motor, so that a motor speed of the drive motor remains constant and b) determining an acceleration current, which generates a defined acceleration of the drive motor when the losses occurring at the constant speed of the drive motor are compensated. The method further entails c) calculating a mass moment of inertia of the electric motor drive system based on the determined acceleration current.
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Kellner Eugen
Kerner Norbert
Brinks Hofer Gilson & Lione
Dr. Johannes Heidenhain GmbH
Fletcher Marlon T.
Miller Patrick
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