Battery system and method for operating a battery system

The battery system integrates cell-level control and dynamic reconfiguration to address flexibility and fault tolerance, ensuring reliable energy supply and adaptability to diverse power requirements.

DE102018206096B4Active Publication Date: 2026-05-28AUDI AG
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Patent Information

Application Number
DE102018206096
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2018-04-20
Publication Date
2026-05-28
Estimated Expiration
2038-04-20

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Abstract

Battery system (40), in particular for a motor vehicle, comprising several battery cells (10), each having a battery cell housing (12) with electrical connections (14, 16) via which the battery cells (10) are electrically connected to each other, wherein a cell branch (18) connecting the connections (14, 16) with a galvanic cell (20) is arranged in each of the battery cell housings (12), characterized in that - in each of the battery cell housings (12) a bypass branch (22) is arranged to bridge the respective galvanic cell (20); - each cell branch (18) has a switching element (24) for opening and closing the cell branch (18) and each bypass branch (22) has a bridging switching element (26) for opening and closing the bypass branch (22); - the battery system (40) has a cell-external circuit arrangement (48) with several switches (50) for connecting the battery cells (10) in different circuit configurations; - the battery system (40) has a control device (52) which is configured to control, in order to fulfill at least one requirement, all switching elements (24) and bridging switching elements (26) of the battery cells (10) for connecting and bridging the galvanic cells (20) of the battery cells (10) as well as all switches (50) of the cell-external circuit arrangement (48) for producing the different circuit configurations, characterized in that - the control device (52) is configured to control the switches (50) in such a way that a part of the module branches (46) are connected to a first subsystem (54) to provide a first voltage (U1) and another part of the module branches (46) are connected to a second subsystem (56) to provide a second voltage (U2), and - the control device (52) has a control unit (28) for each battery cell (10) which is configured to control the respective switching elements (24) and bridging switching elements (26) of the battery cells (10) for switching on and bridging the galvanic cells (20).
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Citation Information

Patent Citations

  • Traction battery for electric vehicle, has battery cells that are connected over switchable separators so that battery cell group separation process is performed according to preset control algorithm

    DE102011013182A1

  • Battery system, has energy storage modules comprising control units that are connected with each other with network, where modules are provided with switching elements that are controlled by control units and switching off storage modules

    DE102011053728A1

  • Power generation system e.g. photovoltaic system for supplying electric power to e.g. public supply network, has control device that is provided to control switch device based on direct voltage power supplied by power generator

    DE102011056135A1

  • Method for varying e.g. voltage at connection terminals of series circuit of battery cells of heterogeneous battery arrangement in electric car, involves varying configuration of series circuit for adjustment of voltage and impedance

    DE102011014133A1

  • Battery fault-tolerant architecture for cell failure modes, parallel bypass circuit

    DE102011054146A1