Abstract: A method for operating a hand-held power tool, in particular a rotary impact wrench, the hand-held power tool comprising an electric motor, the method including selecting an application class depending on at least one hardness and/or strength property of a substrate in which a screwdriving operation is to be carried out, and selecting an operation mode from an operation mode group comprising a first operation mode and a second operation mode, based at least in part on the application class. The first operation mode has a first maximum torque level of the electric motor per application class and the second operation mode has a second maximum torque level per application class. Furthermore, a hand-held power tool, in particular an impact wrench, having an electric motor and a control unit is disclosed, the control unit being designed for carrying out a method according to the disclosure.

Abstract: A method for operating a hand-held power tool is disclosed, wherein the hand-held power tool includes an electric motor. The method includes carrying out a screw connection of a connecting device in a support, providing at least one signal of an operating variable of the electric motor during the screwing, evaluating the received signal of the operating variable of the electric motor, and deciding whether the screw connection has been properly carried out, the decision being at least partially based on the evaluation of the received signal of the operating variable of the electric motor. A hand-held power tool is also disclosed.

Abstract: A method for operating a hand-held power tool is disclosed, with the hand-held power tool including an electric motor. The method includes step (S1) providing comparative information, having the steps of (S1a) providing at least one model signal waveform, said model signal waveform being assignable to the work progress of the hand-held power tool, and (S1b) providing a threshold of a match. The method further includes step (S2) ascertaining a signal of an operational variable of the electric motor. The method also includes step (S3) analyzing the comparative information and the signal of an operational variable, having the steps of (S3a) comparing the signal of the operational variable with the model signal waveform and ascertaining a match signal from the comparison, and (S3b) ascertaining a match evaluation, said match evaluation being carried out at least partly using the threshold of the match and using the match signal.

Abstract: A method for controlling a suction device, in which the suction device includes at least one electric motor at least for generating a suction function, includes at least detecting vibration data on a suction hose of the suction device, evaluating the vibration data by comparing it with comparison data and generating a comparison result, and controlling the electric motor in accordance with the comparison result.

Abstract: A method is for operating a hand-held power tool that includes an electric motor. The method includes determining a signal of an operating parameter of the electric motor; determining an application class at least partly on the basis of the signal of the operating parameter; and providing comparative information at least partly on the basis of the application class including (i) providing at least one model-signal form, and (ii) providing a threshold value for correspondence. The model-signal form can be assigned to an established state in the progress of the work performed by the hand-held power tool. The method further includes comparing the signal of the operating parameter with the model-signal form and determining a correspondence evaluation from the comparison. The correspondence evaluation is at least partly based on the threshold value for correspondence.

Abstract: The disclosure relates to a method for operating a handheld power tool having an electric motor, the method comprising: S1 providing at least one model signal waveform that is associated with a work progress of the handheld power tool; S2 determining a signal of an operating variable of the electric motor; S3 comparing the signal of the operating variable with the model signal waveform and determining a conformity evaluation on the basis thereof; S4 identifying the work progress at least partially using the conformity evaluation; S5 executing a first routine of the handheld power tool at least partially on the basis of the work progress identified in method step S4. The disclosure also relates to a handheld power tool, in particular an impact driver, comprising an electric motor and a control unit, wherein the control unit is designed to carry out a method according to the disclosure.

Abstract: The disclosure relates to a method for operating a handheld power tool comprising an electric motor and the method comprising: S1 providing comparative information, comprising: S1a providing at least one model signal shape, the model signal shape being assignable to progress of work of the handheld power tool; S1b providing a threshold value of correspondence; S2 ascertaining a signal of an operating variable of the electric motor; S3 comparing the signal of the operating variable with the model signal shape and ascertaining assessment of correspondence from the comparison, the assessment of correspondence at least partially taking place on the basis of the threshold value of correspondence; S4 detecting the progress of work at least partially on the basis of the assessment of correspondence ascertained in method step S3; the providing of the comparative information at least partially taking place on the basis of a learning process.

Abstract: The disclosure relates to a method for detecting work progress of a handheld power tool, the handheld power tool having an electric motor, and the method comprising the steps of: S1 providing at least one model signal form, the model signal form being assignable to the work progress of the handheld power tool; S2 determining a signal of an operating parameter of the electric motor; S3 comparing the signal of the operating parameter with the model signal form and determining a conformity evaluation from the comparison; S4 recognizing the work progress to at least some extent using the conformity evaluation determined in method step S3. Further disclosed is a handheld power tool, more specifically an impact driver, comprising an electric motor and a control unit, the control unit being designed to carry out a method according to the disclosure.

Abstract: Method for detecting a first operating state of a handheld power tool, wherein the handheld power tool has an electric motor. In this case, the method comprises the steps of: (S1) determining a signal of an operating variable of the electric motor; (S2) comparing the signal of the operating variable with at least one model signal waveform typical of the state, wherein the model signal waveform typical of the state is assigned to the first operating state; (S3) deciding whether the first operating state is present, wherein the decision at least partially depends on whether the model signal waveform typical of the state is identified in the signal of the operating variable in step S2. Additionally disclosed is a handheld power tool, particularly an impact driver, with an electric motor and a control unit, wherein the control unit is designed to execute a method according to the disclosure.