Systems and methods for detecting an open cell tap in a battery pack
US8717035B2 · kind B2 · utility
3Cited by
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12Claims
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Key dates
| Filing date | Dec 7, 2010 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Oct 21, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is provided for detecting an open cell tap condition in a battery pack. The method includes: applying a detection voltage across an electrical impedance that is coupled to a measurement node, where the detection voltage exceeds voltage measures at a node disposed between serially coupled battery cells of the battery pack and the measurement node is coupled by a circuit path to said node; measuring the voltage at the measurement node while the detection voltage is being applied; and detecting a break in the circuit path when the voltage measured at the measurement node is substantially equal to the detection voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.