Control apparatus in motor drive system and method of controlling motor drive system

US8928263B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8928263-B2
Application numberUS-201313857154-A
CountryUS
Kind codeB2
Filing dateApr 5, 2013
Priority dateJun 26, 2012
Publication dateJan 6, 2015
Grant dateJan 6, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A control apparatus in a motor drive system includes a magnet temperature acquiring device and a step-up ratio determining device. The magnet temperature acquiring device is configured to estimate or detect a temperature of a permanent magnet provided in a rotor or a stator of a motor of the motor drive system. The motor drive system includes a power supplying device to output direct current voltage, and a voltage step-up device to increase, at a certain step-up ratio, the direct current voltage which is output from the power supplying device. The step-up ratio determining device is configured to determine the certain step-up ratio in accordance with the temperature of the permanent magnet estimated or detected by the magnet temperature acquiring device.

First claim

Opening claim text (preview).

What is claimed is: 1. A control apparatus in a motor drive system, the control apparatus comprising: a magnet temperature acquiring device configured to estimate or detect a temperature of a permanent magnet provided in a rotor or a stator of a motor of the motor drive system, the motor drive system including a power supplying device to output direct current voltage, and a voltage step-up device to increase, at a certain step-up ratio, the direct current voltage which is output f…

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What does patent US8928263B2 cover?
A control apparatus in a motor drive system includes a magnet temperature acquiring device and a step-up ratio determining device. The magnet temperature acquiring device is configured to estimate or detect a temperature of a permanent magnet provided in a rotor or a stator of a motor of the motor drive system. The motor drive system includes a power supplying device to output direct current vo…
Who is the assignee on this patent?
Honda Motor Co Ltd
What technology area does this patent fall under?
Primary CPC classification H02P29/662. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jan 06 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).