ELECTRIC MOTOR DRIVE SYSTEM AND WINDING SWITCHING METHOD

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20150311850A1
SERIAL NO

14589177

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An electric motor drive system includes an electric motor including windings for separate phases including a center tap, a winding for a low-speed rotation located between the center tap and a winding start terminal, and a winding for a high-speed rotation located between the center tap and a winding end terminal; an inverter configured to supply an inverter electric current to the winding of each phase; a first winding switch portion configured to open and close connection between the inverter and the winding start terminal, and a second winding switch portion configured to open and close connection between the inverter and the center tap of the winding of each phase; and a controller configured or programmed to control opening and closing of each of the first and second winding switch portions.

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Patent Owner(s)

Patent OwnerAddress
NIDEC CORPORATIONKYOTO-SHI KYOTO 601-8205

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
MOMEN, Kenta Kyoto, JP 2 0
SHIMIZU, Daisuke Kyoto, JP 111 506
YANO, Akira Kyoto, JP 27 200
YANO, Katsuhisa Kyoto, JP 15 152

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