Residual capacity detecting apparatus for an electric vehicle's battery and a related residual capacity measuring method
US6057688A · kind A · utility
8Cited by
5References
5Claims
0Family size
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Key dates
| Filing date | Mar 4, 1998 |
| Grant date | May 2, 2000 |
| Priority date | — |
| Expiry date | Mar 4, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A reduction in the discharge voltage, caused due to a memory effect of a battery, is checked during a discharge operation. An initial discharge characteristic curve, representing an initial relationship between the discharge voltage and the discharge amount of the battery, is parallel shifted so as to coincide with the actual discharge condition, thereby obtaining an estimated discharge characteristic curve in a non-discharged region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.