Andreas Stihl Ag Co. Kg

Jan-Philipp Banzhaf

Karsten Schmidt

The invention relates to a method for operating a work apparatus having a combustion engine. An ignition device is provided for triggering an ignition spark at a spark plug for igniting a fuel/air mixture in a combustion chamber of the combustion engine. The combustion chamber is bounded by a piston which drives a crankshaft in a rotating manner. In order to avoid the combustion engine stopping in rich mode, the speed (n) of the combustion engine is monitored over the period of time (t, &#x394;T) and the ignition point (ZZP) of the ignition device is advanced if the speed (n) of the combustion engine lies within a predefined speed range (n; n) within a predefined period of time (t, &#x394;T) and then the speed n drops below a speed limit value (n).

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Schwaikheim, Germany

Jan-Philipp Banzhaf