Battery parameter estimation device and parameter estimation method
US10175303B2 · kind B2 · utility
3Cited by
2References
9Claims
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Key dates
| Filing date | Oct 3, 2014 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Jul 23, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method for battery parameter estimation estimate the parameters of a battery equivalent circuit model while reducing the computation load. The apparatus includes a charge/discharge current detector (3) that detects a charge/discharge current value of a battery (1); a terminal voltage detector (2) that detects a terminal voltage value of the battery (1); and an estimator (4) that estimates, based on the charge/discharge current value and the terminal voltage value, parameters in a battery equivalent circuit model (41) that approximates the Warburg impedance of the battery (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.