Apparatus for managing battery and method thereof
US-2024418786-A1 · Dec 19, 2024 · US
Smooth current calculation apparatus, smooth current calculation method and battery monitoring module
US9031802B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9031802-B2 |
| Application number | US-201113574701-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 19, 2011 |
| Priority date | Jan 29, 2010 |
| Publication date | May 12, 2015 |
| Grant date | May 12, 2015 |
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Abstract
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A smooth current calculation apparatus, which calculates a smooth current of a secondary battery, includes a digital low-pass filter ( 22˜27 ) supplied with a measured digital current value generated by digitizing a measured current value of the secondary battery. The digital low-pass filter outputs a smooth digital current value, which is created by smoothing a time fluctuation of the measured digital current value. A current fluctuation level setting part (S 1 ) compares a difference between the measured digital current value and the smooth digital current value with a threshold value, and sets a current fluctuation level based on a result of the comparison. A filter coefficient setting part (S 2 ) sets a filter coefficient of the digital low-pass filter in accordance with the current fluctuation level.
First claim
Opening claim text (preview).
The invention claimed is: 1. A smooth current calculation apparatus configured to calculate a smooth current of a secondary battery, comprising: a digital low-pass filter supplied with a measured digital current value generated by digitizing a measured current value of the secondary battery and outputs a smooth digital current value, which is created by smoothing a time fluctuation of said measured digital current value; a current fluctuation level setting part that compares a d…
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- G01R31/382Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G01R31/3606Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US9031802B2 cover?
- A smooth current calculation apparatus, which calculates a smooth current of a secondary battery, includes a digital low-pass filter ( 22˜27 ) supplied with a measured digital current value generated by digitizing a measured current value of the secondary battery. The digital low-pass filter outputs a smooth digital current value, which is created by smoothing a time fluctuation of the measured…
- Who is the assignee on this patent?
- Sugiyama Ren, Mitsumi Electric Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G01R31/382. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue May 12 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).