Control device for alternating current rotating machine and electric power steering device equipped with control device for alternating current rotating machine

US9130497B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9130497-B2
Application numberUS-201114234202-A
CountryUS
Kind codeB2
Filing dateNov 17, 2011
Priority dateNov 17, 2011
Publication dateSep 8, 2015
Grant dateSep 8, 2015

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  2. Abstract

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  3. Assignees and inventors

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A control device for an AC rotating machine includes a voltage command calculation means ( 1 ) that calculates voltage commands on rotation two axes and a voltage applying means ( 2 ) that applies a voltage to an AC rotating machine ( 3 ), based on voltage commands on the rotation two axes outputted by the voltage command calculation means ( 1 ); the voltage command calculation means ( 1 ) calculates first-axis and second-axis voltage commands on the rotation two axes and reduces the limit value of the second-axis voltage command in proportion to the squared first-axis voltage command.

First claim

Opening claim text (preview).

The invention claimed is: 1. A control device for an AC rotating machine comprising: a voltage command calculation means that calculates voltage commands on rotation two axes; and a voltage applying means that applies a voltage to an AC rotating machine, based on voltage commands on the rotation two axes outputted by the voltage command calculation means, wherein the voltage command calculation means calculates first-axis and second-axis voltage commands on the rotation two axes…

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What does patent US9130497B2 cover?
A control device for an AC rotating machine includes a voltage command calculation means ( 1 ) that calculates voltage commands on rotation two axes and a voltage applying means ( 2 ) that applies a voltage to an AC rotating machine ( 3 ), based on voltage commands on the rotation two axes outputted by the voltage command calculation means ( 1 ); the voltage command calculation means ( 1 ) calc…
Who is the assignee on this patent?
Kimpara Yoshihiko, Hori Yasuaki, Iwane Masashi, and 4 more
What technology area does this patent fall under?
Primary CPC classification H02P21/22. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Sep 08 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).