Andreas Stihl Ag Co. Kg

Robert Boeker

Franz Mandl

Joerg Praeger

Martin Bobert

Joerg Blaesi

A method and system automatically determine cleaning, maintenance and/or repair information for a motor-driven treatment tool, wherein the treatment tool comprises a residue, able to be detected externally optically, caused during the operation of the treatment tool. The method involves the steps of: optically detecting the residue; classing the detected residue in accordance with a type of the residue; determining the cleaning, maintenance and/or repair information based on the classing; and outputting the determined cleaning, maintenance and/or repair information.

Method for automatically ascertaining cleaning, maintenance and/or repair information for a motor-driven treatment tool and system for automatically ascertaining cleaning, maintenance and/or repair information for a motor-driven treatment tool

A method and system ascertain information relating to a collection, a start and/or an end of a period spent in a workshop and/or in storage and/or a delivery of a green space and/or cultivated area treatment device. The method involves the steps of: providing a growth characteristic variable, wherein the growth characteristic variable is characteristic for plant growth on and/or in a space/area treated and/or to be treated by way of the green space and/or cultivated area treatment device; and ascertaining the information on the basis of the provided growth characteristic variable.

Method and system for ascertaining information relating to a collection, a start and/or an end of a period spent in a workshop and/or in storage and/or a delivery of a green space and/or cultivated area treatment device

A method for providing automated assistance with repairing a motor-driven tool, includes the steps of: ascertaining at least one boundary operating condition of the tool, wherein the tool has previously not functioned properly under this boundary operating condition; determining a set of possible fault symptoms, possible causes of faults of the tool, possible repair action instructions, and/or possible replacement parts for the tool, on the basis of the ascertained boundary operating condition; and outputting the determined set of possible fault symptoms, possible causes of faults, possible repair action instructions, and/or possible replacement parts.

Method for providing automated assistance with repairing a motor-driven tool and system for providing automated assistance with repairing a motor-driven tool

The invention relates to an arrangement for identifying a switching position of a switch (on an internal combustion engine in a handheld work apparatus. An energy source for supplying power to an inductive electrical load is provided, it being possible to connect the load to the energy source in order to be switched on and off via a controller. The switch is arranged in a voltage branch which is connected in parallel with the inductive load and in which a zener diode is also connected. The zener diode is activated or inactivated via the switch as a function of the switching position of the switch. The amplitude of the switch-off voltage, which is induced when the inductive load is disconnected, is limited by the zener diode, so that it is possible to read from the magnitude of the amplitude whether the switch is closed or open.

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Waiblingen, Germany

Robert Boeker