Avl List Gmbh

Piezocryst Advanced Sensorics Gmbh

Jakob Moder

Martin Schmidt

Alexander Schricker

Rüdiger Teichmann

Erwin Reisinger

Francesco Duchi

Pirmin Proier

Lukas Quurck

Andreas Neubauer

Michael Messner

The invention relates to a method and system for calibrating a control device, in particular an inverter control device, of an electric motor, comprising: operating the electric motor as part of a force flow; performing a force measurement by means of piezo elements which are arranged in the force flow in such a way that the force flow is applied, in particular exclusively, to the piezo elements; and adapting a control characteristic the control device on the basis of at least one force component derived from the force measurement, in particular a change in the at least one force component and/or at least one torque component derived from the force measurement, in particular a change in the torque component.

Method and system for calibrating a control device of an electric motor

The invention relates to a method and a drivetrain test bench for detecting an imbalance and/or a misalignment of at least one shaft assembly of a drivetrain during operation on a test bench, wherein a first piezoelectric force sensor is arranged in a flow of force generated by a transmission of power between a load unit of the test bench and a drive unit of the drivetrain or the test bench, and which is transmitted by of the shaft assembly, wherein the first force sensor realizes a first force measurement in a first plane and/or perpendicular to the first plane as is intersected by a rotational axis of the shaft assembly and preferably at least substantially perpendicular to the rotational axis, and wherein the first force measurement and/or a rotational angle determination for the shaft assembly are used to detect an imbalance, and/or a misalignment of the shaft assembly.

Method and drivetrain test bench for detecting an imbalance and/or a misalignment

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Jakob Moder