Method for operating a work apparatus having an electric motor

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United States of America Patent

PATENT NO 9577567
APP PUB NO 20130200837A1
SERIAL NO

13758626

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An electric motor in a work apparatus has a power characteristic line which runs between a lower rotational speed of the electric motor and an upper rotational speed of the electric motor. The power characteristic line has a power characteristic with a pronounced maximum (M) and an operating plateau (AP) which lies in a working rotational speed range (AD) of the work apparatus. A method for operating the electric motor provides for configuring the position of the operating plateau (AP) to be variable with respect to the rotational speed of the electric motor to achieve stable operating points over a wide rotational speed range.

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Patent Owner(s)

  • ANDREAS STIHL AG & CO. KG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liebhard, Gernot Waiblingen, DE 23 220
Oerding, Jochen Ludwigsburg, DE 2 12
Renz, Christian Biberach, DE 2 6
Wichert, Rene Durlangen, DE 6 15

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