Battery state estimating apparatus
US10507734B2 · kind B2 · utility
5Cited by
0References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2018 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Mar 4, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A battery state estimating apparatus is provided with: an acquirer configured to obtain a complex impedance of a battery; a calculator configured to calculate a ratio of a variation of a predetermined feature amount regarding the complex impedance; and an estimator configured to estimate a charge amount of the battery on the basis of the ratio of the variation of the predetermined feature amount with respect to an integrated current value, which is an integrated value of an electric current flowing through the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.