Battery current monitoring method, controller and circuit
US-2024133956-A1 · Apr 25, 2024 · US
State-of-charge estimation apparatus
US9013151B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9013151-B2 |
| Application number | US-201013580625-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 26, 2010 |
| Priority date | Mar 26, 2010 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 2015 |
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Abstract
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A state-of-charge estimation apparatus connected to a power storage device having cell batteries, and estimating a state of charge of the power storage device, the apparatus including a first SOC computation unit computing a current integration value based on a total current from a current detector detecting the total current flowing to the storage device from a power conversion device using a previous SOC value as an initial value, and outputting the integration value as a first state-of-charge estimated value, and a second SOC computation unit estimating, after discharge suspension in the storage device, an open-circuit voltage based on a total voltage on a connection point between the conversion device and the storage device, a previous value of the total voltage, and a gain with time passage after discharge suspension in the storage device, and outputting the open-circuit voltage as a second state-of-charge estimated value.
First claim
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The invention claimed is: 1. A state-of-charge estimation apparatus that is connected to a power storage device constituted by connecting a plurality of cell batteries, and estimates a state of charge of the power storage device, the state-of-charge estimation apparatus comprising: a first computation unit that computes a current integration value based on a current from a detector that detects a current flowing to or from the power storage device from or to a power conversion uni…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9013151B2 cover?
- A state-of-charge estimation apparatus connected to a power storage device having cell batteries, and estimating a state of charge of the power storage device, the apparatus including a first SOC computation unit computing a current integration value based on a total current from a current detector detecting the total current flowing to the storage device from a power conversion device using a …
- Who is the assignee on this patent?
- Tabuchi Akiko, Yoshioka Shoji, Hatanaka Keita, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification G01R31/3648. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 21 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).