State detection device for power supply system
US8466708B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 30, 2010 |
| Grant date | Jun 18, 2013 |
| Priority date | — |
| Expiry date | Feb 22, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3828
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A state detection device for power supply system comprises: a measurement unit that obtains current, voltage, and temperature at a chargeable and dischargeable power storage unit as measurement values; a storage unit that stores property information of the power storage unit; an arithmetic unit that uses different methods to calculate first and second states of charge for the power storage unit based upon the measurement values and the property information; a conflict detection unit that detects a conflict in an event that a difference between the first state of charge and the second state of charge is equal to or greater than a predetermined threshold; and a correction unit that corrects the property information during charging or discharging of the power storage unit in response to the conflict having been detected by the conflict detection unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.