The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 2017
Filed:
Dec. 19, 2013
Makita Corporation, Aichi, JP;
Pruefrex Engineering E Motion Gmbh & Co. KG, Cadolzburg, DE;
Enrico Eichler, Hamburg, DE;
Harry Radel, Geesthacht, DE;
Thomas Voss, Bad Schwartau, DE;
Marek Lajda, Fuerth, DE;
Nikolai Reimgen, Zirndorf, DE;
MAKITA CORPORATION, Aichi, JP;
PRUEFREX ENGINEERING E MOTION GMBH & CO. KG, Cadolzburg, DE;
Abstract
The invention relates to a method and a control device for operating an internal combustion engine of a portable work device, said method having the following method steps: a) storing a starting ignition curve for specifying an ignition time after a startup time of the internal combustion engine and an operating ignition curve for specifying the ignition time in a speed range assigned to the nominal operation of the internal combustion engine, b) reading the current engine speed, c) reading at least one time value which indicates the time that has elapsed since a reference time, wherein the reference time can relate to the startup time of the internal combustion engine, and d) determining and/or initiating a switchover process from the starting ignition curve to the operating ignition curve on the basis of the current engine speed and the time value.