Battery voltage equalization method, device and battery management system
A battery voltage and equalization method technology, which is applied in battery circuit devices, charge equalization circuits, secondary battery charging/discharging, etc., can solve the problems of small equalizing current, large energy consumption, and low efficiency, so as to reduce differences and improve The effect of capacity
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Embodiment 1
[0061] To facilitate the understanding of this embodiment, a battery management system that implements the battery voltage equalization method disclosed in the embodiment of the present application is firstly introduced in detail.
[0062] like figure 1 Shown is a block diagram of the battery management system. The battery management system 100 may include a memory 111 , a storage controller 112 , a processor 113 , a peripheral interface 114 , an input and output unit 115 , and a display unit 116 . Those of ordinary skill in the art can understand that, figure 1 The shown structure is only for illustration, and does not limit the structure of the battery management system 100 . For example, the battery management system 100 may also include a ratio figure 1 more or fewer components than shown in, or with figure 1 Different configurations are shown.
[0063] The memory 111 , storage controller 112 , processor 113 , peripheral interface 114 , input / output unit 115 and displ...
Embodiment 2
[0071] see figure 2 , is a flow chart of the battery voltage equalization method provided in the embodiment of the present application. The following will be figure 2 The specific process shown will be described in detail.
[0072] Step 201, acquire the battery voltage of each battery in the target battery module.
[0073] During the charging process of the target battery module and after the target battery module reaches a specified state, the battery voltage of each battery in the target battery module is acquired.
[0074] Exemplarily, it takes time T1 to fully charge the target battery module, and it takes T2 time to charge the target battery module until the power ratio of the battery module is P1. The above-mentioned designated state may be that the battery module is charged to a power ratio of P1, and step 201 may be executed after the charging time reaches T2.
[0075] Step 203 , determining the target battery whose voltage value in the target battery module grou...
Embodiment 3
[0126] Based on the same application idea, the embodiment of this application also provides a battery voltage equalization device corresponding to the battery voltage equalization method. For the implementation of the device in the embodiment, reference may be made to the description in the embodiment of the above method, and repeated descriptions will not be repeated.
[0127] see Figure 6 , is a schematic diagram of the functional modules of the battery voltage equalization device provided in the embodiment of the present application. Each module in the battery voltage equalization device in this embodiment is used to execute each step in the above method embodiment. The battery voltage equalization device includes: an acquisition module 301, a determination module 302, a first processing module 303, and a second processing module 304; wherein,
[0128] An acquisition module 301, configured to acquire the battery voltage of each battery in the target battery module;
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