Battery ohmic resistance calculation system and method
US7782061B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Mar 16, 2007 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Jun 10, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/389
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus that estimates the ohmic resistances of N batteries includes voltage and current measurement modules that respectively measure the voltage and current of each of the N batteries. An ohmic resistance estimating module over N+1 time periods receives the voltage and current measurements of each of the N batteries and receives consecutive voltage and current measurements for one of the N batteries. N is a positive integer and the ohmic resistance estimating module estimates the ohmic resistance of the battery that is associated with the consecutive voltage and current measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.