Method for opportunistically balancing charge between battery cells
US9450426B2 · kind B2 · utility
3Cited by
11References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2012 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Sep 16, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods for balancing battery cells of a battery pack are disclosed. In one example, a charge imbalance is determined while battery cells operate in a high charge resolution voltage range. The charge imbalance determined during operation in the high charge resolution voltage range may be removed when the battery cells are operated in a low charge resolution voltage range. The system and method may be particularly useful for balancing battery cells that operate in the low charge resolution voltage range for a large portion of their operating time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.