Method for correcting a misalignment of at least one shafting

A non-transitory computer-readable medium including a computer program containing instructions which, when executed by a processor of a computer, prompts the computer program to:

• analyze a measured value or a measured value progression of a force measurement for detecting a misalignment of at least one shafting of a powertrain on a test bench, wherein the force measurement is performed by at least one piezoelectric force sensor in at least one plane and/or perpendicular to the at least one plane which is intersected by a rotational axis of the shafting, the at least one piezoelectric force sensor being arranged in a path of force via which a force flow can be transmitted between a load unit of the test bench and a drive unit of the powertrain or of the test bench during a transmission of power via the shafting;
• determine target values for a position correction of the load unit or the drive unit in order to minimize the misalignment, including to:
• determine a bending moment or a bending moment curve on the shafting on the basis of the measured value or the measured value progression of the force measurement;
• and
• determine a bending line of the shafting on the basis of the bending moment or the bending moment curve, wherein the target values are determined by way of the bending line;
• and
• output the target values.

A powertrain test bench, comprising:

• a load unit connectable to a shafting to be tested, wherein the shafting is connectable to a drive unit;
• at least one piezoelectric force sensor arranged in a path of force via which a force flow is transmitted from the load unit of the powertrain test bench during a transmission of power via the shafting and is configured to perform a force measurement in a plane and/or perpendicular to the plane which is intersected by a rotational axis of the shafting;
• and
• a signal processing device in communication with the at least one piezoelectric force sensor, the signal processing device including a processor that:
• analyzes a measured value or a measured value progression of the force measurement for detecting a misalignment of the shafting;
• d determines target values for a position correction of the load unit or the drive unit in order to minimize the misalignment, wherein to determine the target values the processor further:
• determines a bending moment or a bending moment curve on the shafting on the basis of the measured value or the measured value progression of the force measurement;
• and
• determines a bending line of the shafting on the basis of the bending moment or the bending moment curve, wherein the target values are determined by way of the bending line;
• and
• outputs the target values.