DC charging of an intelligent battery
AssigneeDr. Ing. h.c. F. Porsche Aktiengesellschaft
InventorsMalte Jaensch, Jan Kacetl, Tomas Kacetl, Stefan Götz
Life of this patent
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Abstract
A method for DC-charging an intelligent battery pack, which is connected to a charging column and has at least two battery modules. Each battery module includes at least two power semiconductor switches and at least one energy storage element. The battery pack is connected for charging by way of a connection circuit. A state of each individual energy storage element is monitored, wherein, in accordance with a continued evaluation of the states of the respective energy storage elements, a respective series and/or parallel interconnection of the respective battery modules among one another within the battery pack is configured dynamically by way of actuation of the power semiconductor switches.
Claims19
A method for DC-charging an intelligent battery pack, which is connected to a charging column for charging by way of a connection circuit and has at least two battery modules, which each battery module comprises at least two power semiconductor switches and at least one energy storage element, the method comprising:
- monitoring a state of each individual energy storage element;
- and
- dynamically configuring at least one of a respective series and a parallel interconnection of the respective battery modules among one another within the battery pack by actuating the power semiconductor switches, and, in accordance with a continued monitoring of the states of the respective energy storage elements.
A battery pack comprising:
- at least two battery modules each comprising at least two power semiconductor switches and an energy storage element that is electrically connected to the at least two power semiconductor switches,
- sensors for determining a state of a respective energy storage element,
- a sensor associated with each battery module for measuring a flowing charging current, and
- a control unit comprising a computer processor and a computer program running on the computer processor,
- wherein the battery pack is configured to:
- (i) monitor a state of each individual energy storage element;
- and
- (ii) dynamically configure at least one of a respective series and a parallel interconnection of the respective battery modules among one another within the battery pack by actuating the power semiconductor switches, and, in accordance with a continued monitoring of the states of the respective energy storage elements.
Dependencies are inferred from the claim text.