Electricity: battery or capacitor charging or discharging – Battery or cell discharging – With charging
Reexamination Certificate
2005-02-17
2008-09-09
Vu, Bao Q. (Department: 2838)
Electricity: battery or capacitor charging or discharging
Battery or cell discharging
With charging
C320S149000, C702S063000, C324S426000, C324S427000, C324S430000, C324S431000, C324S433000
Reexamination Certificate
active
07423408
ABSTRACT:
A method for determining at least one characteristic variable for the state of a battery includes: (a) determining the charge throughput of the battery per time step; having, (b) determining a first characteristic figure in order to describe the stratification of the electrolyte concentration in the battery on the basis of a defined initial state for an as-new battery, and of a second characteristic figure in order to describe the stratification of the state of charge in the battery on the basis of a defined initial value for an as-new battery during operation of the battery, in which (c) in each time step, the first characteristic figure and the second characteristic figure are adapted as a function of the charge throughput from the instantaneous state of the battery, and at least one characteristic variable is determined from the first and the second characteristic figure.
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Koch Ingo
Laig-Hoerstebrock Helmut
Meissner Eberhard
Teutsch Ursula
Foley & Lardner LLP
VB Autobatterie GmbH
Vu Bao Q.
Zhang Jue
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