Method for checking a battery state and an apparatus for checking a battery state using voltage differences
US10809306B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 22, 2018 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Dec 16, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for checking a battery state for at least one battery of at least one motor vehicle. A. determination of cell voltage differences of particular cell voltage values of at least two battery cells of the at least one battery at different points in time. B. comparison of the cell voltage differences with at least one predetermined cell voltage reference value assigned to the at least two battery cells, and determination of respective deviation values between the cell voltage differences and the at least one cell voltage reference value. C. determination of the battery state of the at least one battery, wherein, based on the particular deviation values, it is determined whether an inadmissible degradation of the battery state is imminent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.