Power tool with light unit
US-9225275-B2 · Dec 29, 2015 · US
Storage battery control device, charging station, and storage battery control method
US9178381B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9178381-B2 |
| Application number | US-201113810538-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 1, 2011 |
| Priority date | Aug 4, 2010 |
| Publication date | Nov 3, 2015 |
| Grant date | Nov 3, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The battery charging of electric vehicles, etc. is controlled so that the impact on the electric power system is lightened even when a lot of electric vehicles, etc. start the charging all at once. A device for controlling an electricity storage device installed in an electric vehicle or the like calculates a voltage drop by applying a load current at the time of performing the charging of the electricity storage device, and limits the charging quantity of the storage battery (installed in the electric vehicle or the like) based on the calculated voltage drop so that the voltage drop of the electric power system remains less than a prescribed level. Consequently, it becomes possible to reduce the voltage fluctuation around each of the electric vehicles, etc. that is about to execute the charging in cases where a lot of electric vehicles, etc. start the charging all at once.
First claim
Opening claim text (preview).
The invention claimed is: 1. A storage battery control device comprising: a calculation unit which calculates a voltage drop caused to an electric power system when a storage battery is connected to the system; a resistor element having a resistance value set by a control unit; a control device that controls a charging load on the storage battery; a sensor that measures an electric current value and a voltage value of a load current applied from the electric power system to…
Assignees
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Operations & Transport · mapped topic
Operations & Transport · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9178381B2 cover?
- The battery charging of electric vehicles, etc. is controlled so that the impact on the electric power system is lightened even when a lot of electric vehicles, etc. start the charging all at once. A device for controlling an electricity storage device installed in an electric vehicle or the like calculates a voltage drop by applying a load current at the time of performing the charging of the …
- Who is the assignee on this patent?
- Ishida Takaharu, Watanabe Masahiro, Hitachi Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02J7/045. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 03 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).