Method for operating a hand-guided working apparatus, and hand-guided working apparatus

A method for operating a hand-guided working apparatus, wherein the working apparatus comprises:

• a movable working tool installation;
• a shaft, wherein the shaft is configured for moving the working tool installation;
• at least one handle disposed in a region of the shaft so as to be between ends of the shaft;
• a drive motor system having an electric drive motor configured for driving the shaft;
• wherein the working tool installation, the shaft and the drive motor system at least in part form at least one part of a system capable of rotational oscillation;
• and
• a controllable oscillation damping installation, wherein the oscillation damping installation at least dampens and/or reduces an excitation of at least one oscillation of the system capable of rotational oscillation and/or excitable by the system capable of rotational oscillation;
• wherein the oscillation damping installation has a notch filter,
• wherein the drive motor system having the electric drive motor and the oscillation damping installation are completely electronically integrated;
• and
• wherein the method comprises the steps of:
• a) operating the electric drive motor to drive the shaft for moving the working tool installation;
• and
• b) controlling the oscillation damping installation during operation in such a manner that the oscillation is at least damped and/or an excitation of the oscillation is reduced;
• and further wherein step a) and/or step b) comprises:
• operating and/or controlling the electric drive motor in a manner to at least dampen the oscillation and/or to reduce an excitation of the oscillation by
• operating and/or controlling the electric drive motor while using the notch filter by filtering a frequency component, that excites at least the oscillation, from a variable signal in the form of a nominal torque signal, a nominal current signal and/or a feedback variable signal, of an electronic motor control unit of the drive motor system;
• and
• wherein the method further comprises:
• detecting at least the actual oscillation by way of the drive motor system, by detecting a temporal actual operating data profile, of the drive motor system.