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Device and method for continuously equalizing the charge state of lithium ion battery cells
US8933666B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8933666-B2 |
| Application number | US-201113181132-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 12, 2011 |
| Priority date | Jul 12, 2010 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
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Abstract
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A method of equalizing charge states of individual cells in a battery includes measuring a previous cell voltage for each cell, measuring a previous shunt current for each cell, calculating, based on the previous cell voltage and the previous shunt current, an adjusted cell voltage for each cell, determining a lowest adjusted cell voltage from among the calculated adjusted cell voltages, and calculating a new shunt current for each cell.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of equalizing charge states of individual cells in a battery, the method comprising: measuring a previous cell voltage for each cell; measuring a previous shunt current for each cell; calculating, based on the previous cell voltage and the previous shunt current, an adjusted cell voltage for each cell; determining a lowest adjusted cell voltage from among the calculated adjusted cell voltages; and calculating a new shunt current for each cel…
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Classifications
- H02J7/54Primary
Electricity · mapped topic
- H02J7/0016Primary
Electricity · mapped topic
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- What does patent US8933666B2 cover?
- A method of equalizing charge states of individual cells in a battery includes measuring a previous cell voltage for each cell, measuring a previous shunt current for each cell, calculating, based on the previous cell voltage and the previous shunt current, an adjusted cell voltage for each cell, determining a lowest adjusted cell voltage from among the calculated adjusted cell voltages, and ca…
- Who is the assignee on this patent?
- Schwartz Paul D, Martin Mark N, Roufberg Lewis M, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H02J7/54. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 13 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).