Assembled battery unit and vehicle
US8400102B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2010 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | May 19, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
According to one of the embodiment, an assembled battery has a plurality of cells electrically connected in series. A charge amount difference detection circuit detects charge amount difference of the cells. Wherein, while a charging or discharge current is being applied to the cells, the charge amount difference detection circuit detects charge amount differences greater than a charge amount of a reference cell having a minimum charge amount, the charge amount differences of the cells are determined by addition of the charging or discharge currents during a period corresponding to the time differences between the reference cell and the other cells reaching a predetermined specific voltage, discharge switches are controlled by a switch controller, based on the charging amount differences.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.