Method and apparatus for estimating state of health (SOH) of battery
US10459034B2 · kind B2 · utility
2Cited by
2References
14Claims
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Key dates
| Filing date | Dec 23, 2015 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Sep 10, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/392
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for estimating a state of health (SOH) of a battery are provided. The method includes measuring a voltage and a partial discharge time of the battery, acquiring a normalized partial discharge time using a battery model of a reference battery normalized with respect to a time, calculating a full discharge time of the battery based on the partial discharge time and the normalized partial discharge time, and estimating the SOH based on a ratio between a stored full discharge time of the reference battery and the full discharge time of the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.