Cell management system acquisition module automatic numbering system and method thereof

Abstract

The invention relates to a cell management system acquisition module automatic numbering system and a method thereof. The system comprises a cell management system and N acquisition modules connectedwith the cell management system, wherein N is a natural number; N acquisition modules are connected in series in order, and a first acquisition module is electrically connected with the cell management system; each acquisition module comprises a voltage anode input terminal, a voltage cathode input terminal, a voltage anode output terminal, a voltage cathode output terminal, and a trigger switch;the trigger switch is connected between the voltage cathode input terminal and the voltage anode output terminal, the voltage anode input terminal of the first acquisition module is connected with thedirect voltage anode, the voltage cathode input terminal of the first acquisition module is connected with the direct voltage cathode, N acquisition modules are correspondingly connected with the voltage anode input terminal, the voltage cathode input terminal, the voltage anode output terminal and the voltage output terminal for realizing series connection.

Description

【Technical field】 [0001] The invention relates to the field of battery management systems, in particular to an automatic numbering system and method for acquisition modules of the battery management system. 【Background technique】 [0002] With the widespread application of electric vehicles, their safety performance is gradually improving. As the core of monitoring battery performance, the battery management system (Battery Management System, BMS) plays an important role in the safe driving of electric vehicles. In the acquisition module of the battery management system used to collect parameters such as temperature, voltage, and current of the battery pack, the connection mode between the acquisition modules is a daisy-chain power supply connection, and the numbers of each acquisition module are also calibrated in advance and then sequentially To connect, the acquisition modules are connected in parallel. When there is a problem with one or more modules, check and disasse...

AI Technical Summary

Problems solved by technology

When there is a problem with one or more modules, check and disassemble them. After repair or replacement, install the acquisition module. Before installation, you need to number it according to the number of the disassembled module and manually enter it into the battery management system. This numbering method is troublesome and wastes manpower

If the replacement acquisition module is directly installed without numbering, the BMS will not recognize the acquisition module and will send out an alarm message, which needs to be repaired again, and the work is cumbersome

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