Battery's state of charge estimation apparatus
US10641830B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 1, 2013 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Nov 19, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A battery's state of charge estimation apparatus will be provided.The battery's state of charge estimation apparatus includes: a charge and discharge current detection unit; a terminal voltage detection unit; an open circuit voltage method state of charge estimation unit for estimating an open circuit voltage of the battery and an open circuit voltage method state of charge; a current integration method state of charge estimation unit for obtaining a current integration method state of charge as a state variable; and an error correction value calculation unit for calculating an error correction value for correcting the current integration method state of charge. The current integration method state of charge estimation unit corrects the current integration method state of charge by using the error correction value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.