Robert Boschgmbh

Thomas Malich

Frank Fischer

Ulrich Vollmer

Gerald Roos

Nikolas Haberl

Michael Soellner

David Fricker

Michael Koerner

Christian Poddey

Volker Lurk

Armin Jerger

Tobias Stiefel

Tankred Mueller

Dominik Denz

Johannes Rehagen

Jan Van Goethem

Daniel Hofacker

A method for operating an electrically commutated machine. In at least one method step, in particular in at least one method step of overmodulation operation of the electrically commutated machine, a precommutation angle of the electrically commutated machine is set depending on an efficiency of the electrically commutated machine.

Method for operating an electrically commutated machine

The invention relates to a method for detecting blocking or sluggishness (M, M) of a DC motor (). The method comprises the following steps: applying a voltage pulse (U=O) to the DC motor (); monitoring a motor current (I) flowing through the DC motor (); detecting a maximum value of the motor current (I) following the application of the voltage pulse; checking whether a change in the motor current (I) after reaching the maximum value exceeds a specific amount; signalling the blocking or the sluggishness (M, M) of the DC motor () if the change in the motor current (I) after reaching the maximum value exceeds the specific amount.

Method and device for detecting blocking or sluggishness of a DC motor

Growing community of inventors

Kappelrodeck, Germany

Thomas Malich