Method for cell balancing for a plurality of battery cells, and battery system for performing such a method
US9768624B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2015 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Apr 8, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for cell balancing for a plurality of battery cells. Such a method involves the cell balancing being performed on the basis of a need that can be ascertained comparatively accurately. The method described above allows equalization of the states of charge, or cell balancing, based on the state of charge of the battery cells to be made possible, even without knowledge of the capacities of the in particular series-connected battery cells, such that the loss of charge as a result of the cell balancing is particularly low. Hence, a loss of charge as a result of unnecessary equalization of the charge can be prevented or at least significantly reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.