Detection of bending effects in the case of electric drives

A method and a corresponding system for detecting a malfunction in an electric drive unit. The method comprises the following steps: ascertain (S17) a current flow characteristic (1) of an electric drive unit; detect (S33) a gradient change in the current flow characteristic (1) at a first point in...

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Bibliographic Details
Main Authors Kurz, Roland, Herges, Thomas
Format Patent
LanguageEnglish
Published 11.12.2018
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:A method and a corresponding system for detecting a malfunction in an electric drive unit. The method comprises the following steps: ascertain (S17) a current flow characteristic (1) of an electric drive unit; detect (S33) a gradient change in the current flow characteristic (1) at a first point in time (t=n); compare (S35, S39) the gradient change with a predefinable gradient change range; establish (S45) a malfunction in the electric drive unit if the gradient change is outside the predefinable gradient change range.
Bibliography:Application Number: US201414271598