Position sensorless controller for permanent magnet motor

United States of America Patent

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Jan 31, 2012
Grant Date
Jun 11, 2009
app pub date
Dec 9, 2008
filing date
Dec 10, 2007

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Abstract

* and induced voltage constant Ke* or an arctangent calculation is performed in the same way, instead of using a resistance setting.

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Patent Owner(s)

Patent Owner	Address
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO LTD	TOKYO 101-0022
HITACHI CAR ENGINEERING CO LTD	2477 TAKABA HITACHINAKA-SHI IBARAKI

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H02P:CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATO....

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Inventor Name	Address	# of filed Patents	Total Citations
Aoyagi, Shigehisa	Hitachi, JP	46	332
Tobari, Kazuaki	Hitachiota, JP	53	447

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Position sensorless controller for permanent magnet motor

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United States of America Patent

12330629

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PATENT NO	8106619
APP PUB NO	20090146592A1
SERIAL NO	12330629
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
January 31, 2012	US,8106619,B2 US8106619B2	GRANTED PATENT AS SECOND PUBLICATION
June 11, 2009	US,20090146592,A1 US20090146592A1	FIRST PUBLISHED PATENT APPLICATION

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12330629

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