Robert Boschgmbh

Gunther Handte

Christoph Woll

A method for operating an electrical energy store, which includes at least two electrical energy store modules connected in parallel and a connector. It is initially queried which electrical energy store modules are operational. A first voltage of an operational electrical energy store module is then determined, which is greater than or equal to the voltage of all operational electrical energy store modules. Those operational electrical energy store modules are then selected, whose voltage is within a voltage range below the first voltage. The selected electrical energy store modules are then electroconductively connected to the connector.

Method for operating an electrical energy store, electrical energy store and device

A method for operating an electrochemical energy storage system with a plurality of energy storage strings which comprise a plurality of electrochemical energy stores. The energy storage strings can be electrically connected in parallel by means of first switches.

Method for operating an electrochemical energy storage system with a plurality of energy storage strings

A method for operating a battery system. The battery system includes parallel-connected strings. Each string includes at least one battery module. In the battery module, multiple battery cells are interconnected in a series connection and/or in a parallel connection. The strings are switchable on and off from one another. The battery cells and/or battery cell packets are switchable on and off from one another and are bypass-able. The method includes: recognizing a fault of a battery cell; switching off and bypassing the faulty battery cell and/or the faulty battery cell packet which includes the faulty battery cell; switching off the faulty string, which includes the faulty battery cell and/or the faulty battery cell packet; comparing the string voltage of the faulty string to the string voltage of intact strings, in which no fault was recognized; discharging the intact strings if voltage differences between the strings exceed a voltage threshold value.

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Unterensingen, Germany

Gunther Handte