Method and Device for Determining the Charge and/or Aging State of an Energy Store
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United States of America Patent
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Issued Date -
Aug 28, 2008
app pub date -
Mar 29, 2006
filing date -
Jun 7, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In a method and a device for determining a charge/aging state of an energy store, the charge/aging state is able to be determined by a control unit on the basis of an open terminal voltage of the energy store, able to be measured with the aid of a voltage-measuring sensor, in a load-free state. It is provided that the control unit initiates a measurement of a first open terminal voltage at a first instant following the occurrence of the load-free state of the energy store and, based on the measured first open terminal voltage, the control unit, with the aid of a prediction model, specifies a future instant for at least one additional measurement of the open terminal voltage, and at least one additional open terminal voltage is measured at the future instant, and the charge/aging state of the energy store is determined with the aid of the at least one additional open terminal voltage.
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