Full charge sensing apparatus and full charge sensing method
US9153988B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 18, 2013 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Mar 19, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A full charge sensing apparatus for sensing a fully charged state of a secondary battery based on an equivalent circuit model of the secondary battery includes a measuring unit that measures a voltage and a current during charging of the secondary battery, a learning unit that performs a learning process on a plurality of parameters in the equivalent circuit model using a result of measurement of the measuring unit, and a determining unit that determines that the secondary battery is in a fully charged state in a case where, among the parameters on which the learning process has been performed by the learning unit, a parameter corresponding to a reaction resistance of the secondary battery is greater than a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.