Method for compensating for measuring error in detecting current in an energy storing means
The invention relates to a method for compensating for measuring error in detecting the currents in an energy storing means in order to ascertain its charge state. The currents that are drawn from the battery or fed into the battery are measured continuously by means of a current measurement. The me...
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| Format | Patent |
| Language | English |
| Published |
24.06.2003
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| Online Access | Get full text |
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| Summary: | The invention relates to a method for compensating for measuring error in detecting the currents in an energy storing means in order to ascertain its charge state. The currents that are drawn from the battery or fed into the battery are measured continuously by means of a current measurement. The measured values detected are either integrated or added up over time. The remaining charge in the energy storing means is found on this basis.
The invention relates to a method for compensating for the measuring error in detecting current in an energy storing means (), in which the detecting current is effected via a first current converter () and a second current converter () for higher currents, and the converter values (), () of the two current converters (), () are converted in an electronic evaluation unit () into measured values (). The measured values for the battery current I() are measured with both current converters (), () upon reaching a threshold (), and from this the offset () of one current converter () is determined and corrected by the measured values (). |
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