Estimation apparatus, battery, vehicle, and estimation method
AssigneeGS Yuasa International Ltd.
InventorAtsushi FUKUSHIMA
Life of this patent
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Abstract
An estimation apparatus for estimating internal resistance of an engine starting battery includes a processor that executes first estimation processing for estimating the internal resistance of the battery by a first estimation method based on a current change and a voltage change of the battery at the time of cranking by an engine starting apparatus, and second estimation processing for estimating the internal resistance of the battery by a second estimation method different from the first estimation method for a period from the cranking by the engine starting apparatus to the next cranking.
Claims16
An estimation apparatus for estimating internal resistance of an engine starting battery, the apparatus comprising
- a processor that executes
- first estimation processing for estimating the internal resistance of the battery by a first estimation method based on a current change and a voltage change of the battery at a time of cranking by an engine starting apparatus, and
- second estimation processing for estimating the internal resistance of the battery by a second estimation method different from the first estimation method in a period from the cranking by the engine starting apparatus to the next cranking.
An estimation method for estimating internal resistance of an engine starting battery, the method comprising:
- estimating the internal resistance of the battery by a first estimation method based on a current change and a voltage change at a time of cranking by an engine starting apparatus, and
- estimating the internal resistance of the battery by a second estimation method different from the first estimation method for a period from the cranking by the engine starting apparatus to the next cranking.
An estimation apparatus that estimates internal resistance of a low-voltage battery, the apparatus comprising
- a processor that executes
- first estimation processing for estimating the internal resistance of the battery by a first estimation method based on a current change and a voltage change of the battery at a time of energization suitable for estimating the internal resistance, and
- second estimation processing for estimating the internal resistance of the battery by a second estimation method different from the first estimation method for a period from the energization suitable for estimating the internal resistance to the next energization suitable for estimating the internal resistance.
An estimation method for estimating internal resistance of a low-voltage battery, the method comprising:
- estimating the internal resistance of the battery by a first estimation method based on a current change and a voltage change at a time of energization suitable for estimating the internal resistance, and
- estimating the internal resistance of the battery by a second estimation method different from the first estimation method for a period from the energization suitable for estimating the internal resistance to the next energization suitable for estimating the internal resistance.
Dependencies are inferred from the claim text.