Electrochemical energy store and method for operating battery modules in the electrochemical energy store

A technology of battery modules and accumulators, applied in electrochemical generators, batteries, secondary batteries, etc., can solve the problems of considerable addressing costs and communication costs

Active Publication Date: 2019-11-22
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The described implementation is therefore also used today for battery modules, but when transferring the principle to the individual batteries, it has the disadvantage that the addressing and communication costs are considerable

Method used

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  • Electrochemical energy store and method for operating battery modules in the electrochemical energy store
  • Electrochemical energy store and method for operating battery modules in the electrochemical energy store
  • Electrochemical energy store and method for operating battery modules in the electrochemical energy store

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Embodiment Construction

[0021] figure 2 shows the combination figure 1 A modification according to the invention of the device described at the outset. Through the voltage sensor 5 as a voltage determination device and the reference voltage U soll , the battery management system (BMS) 6 as the first processing means determines the regulation requirements for the first battery module for establishing the desired terminal voltage U HV+ , U HV- . The BMS 6 sends the first signal S1 through the bus 8 . By means of this signal S1 , the battery module 1 is informed of a probability value, from which the microcontroller 7 as a second processing device generates a switching signal S3 and supplies it to the full bridge 2 via the driver 9 . The second bus 12 located between the BMS 6 and the potential separation device 11 delivers the polarity indicator S2 to the microcontroller 7 as a second signal, by means of which the polarity of the first battery module is reported to other set A battery module (no...

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Abstract

The invention proposes an electrochemical energy store and a method for operating battery modules in the electrochemical energy store. According to the invention, the terminal voltage (U HV+ , U HV‑ ), the terminal voltage (U HV+ , U HV‑ ) and rated value (U soll ) are compared, a first signal (S1) is sent to the battery module (1) to determine the method for reaching the rated value (U soll ) and sends a second signal (S2) to the battery module (1), wherein the second signal (S2) indicates that the battery module (1) considers the electrochemical accumulator (3) Polarity specific switch state.

Description

technical field [0001] The invention relates to the handling of battery modules in electrochemical cells or electrochemical energy stores. In particular, the invention relates to improvements in handling battery modules to reduce switching losses and signal transmission costs. Background technique [0002] In order to achieve different voltages with the aid of electrochemical energy stores, the cells of the electrochemical energy stores (generally “battery modules”) are wired in branch circuits which form a series circuit of battery modules. In addition, by connecting these branch circuits in parallel, the possible output current or current consumption can be increased. A known device for connecting multiple battery modules is in figure 1 shown in . figure 1 shows a topology of an electronic device for switching on, bridging or by means of a full bridge 2 comprising transistors T1, T2, T3, T4 and terminals for connection to an adjacent battery (not shown) 21 and 22) are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/42H01M10/48
CPCH01M10/425H01M10/48H01M10/42H01M2010/4278H01M2220/20Y02E60/10
Inventor S·布茨曼
Owner ROBERT BOSCH GMBH
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