To satisfy both a request for ensuring worker's safety at the engine start and a worker's request for promptly starting a work, on the premise of a working machine including an engine RPM suppression mode. A working machine (1) has a centrifugal clutch (6). The engine RPM suppression mode is executed at the start of an internal combustion engine (2). With the RPM suppression mode, the RPM of the internal combustion engine (2) is controlled not to exceed a clutch-in RPM. The working machine (1) has a mode cancelling means (S5) canceling the engine RPM suppression mode when a predetermined mode cancelation condition for cancelling the engine RPM suppression mode is satisfied, and a cancellation condition changing means (S2) changing the mode cancelation condition depending on a change in an engine operational state and/or an environment.
Engine-driven working machine
03.09.2019
Patent
Elektronische Ressource
Englisch
IPC: | F02N STARTING OF COMBUSTION ENGINES , Anlassen von Brennkraftmaschinen / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B27B Sägen für Holz oder ähnliches Material , SAWS FOR WOOD OR SIMILAR MATERIAL / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / B25F Kombinierte oder Mehrzweckwerkzeuge, soweit nicht anderweitig vorgesehen , COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR / F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung |
Fuel control method for hand-carried engine-driven working machine
Europäisches Patentamt | 2015
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