Interval estimation for state-of-charge and temperature in battery packs with heterogeneous cells
US11215667B1 · kind B1 · utility
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Key dates
| Filing date | Jun 24, 2020 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Jun 24, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/387
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interval observer based on an equivalent circuit-thermal model for lithium-ion batteries is presented. State of charge-temperature-dependent parameters are considered as unknown but bounded uncertainties in a single cell model. A parallel and a series arrangement of five cells are used for observer design, where cell heterogeneity is accounted for through the uncertainty bounding functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.