Battery state of charge voltage hysteresis estimator
US7570024B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2005 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | May 23, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0071
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A battery control module is provided for use with a battery and includes a voltage measuring module that measures battery voltage, a current measuring module that measures battery current, and a state of charge (SOC) module that communicates with said current and voltage measuring modules. In some features, the SOC module determines an unfiltered SOC of said battery, a characteristic of said unfiltered SOC, and a modified SOC that is based on said unfiltered SOC and said characteristic. In other features, the SOC module determines first and second reset voltages, compares the battery voltage to the first and second reset voltages, and determines an unfiltered SOC based on said first and second reset voltages and said battery voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.