Battery balancing method, system, vehicle, storage medium and electronic device

Abstract

The present disclosure relates to a battery equalization method, system, vehicle, storage medium, and electronic equipment. The method includes: acquiring the rate of change of electric quantity of a single battery to be balanced in a battery pack; obtaining the reference rate of change of electric quantity required for equalization; according to The power change rate of the single battery to be balanced and the reference power change rate determine the target equalization duration of the single battery to be balanced; and control the balance of the single battery to be balanced according to the target equalization time length. Since the target equalization duration based on the equalization process is calculated based on the difference between the power change rate of the single battery to be balanced and the reference power change rate, it is more accurate, which in turn makes the equalization process more accurate and avoids the need for equalization time. Either too long or too short occurs.

Description

technical field [0001] The present disclosure relates to the technical field of control, and in particular, relates to a battery balancing method, system, vehicle, storage medium, and electronic equipment. Background technique [0002] Large-capacity batteries that provide power energy for electric vehicles are often called power batteries. Vehicle power batteries generally consist of multiple single cells connected in series to form a module. With the use of the battery, the difference between the individual batteries gradually increases, and the consistency between the individual batteries is poor. Due to the short plate effect of the battery, the capacity of the battery pack is limited, so that the capacity of the battery pack cannot be fully utilized, resulting in the failure of the battery pack. Overall capacity is reduced. On the other hand, after the differences among individual batteries gradually expand, some single batteries will be overcharged and some single ba...

AI Technical Summary

Problems solved by technology

In the process of equalizing a single battery, if the equalization time of a single battery is too long, it will increase the inconsistency of each single battery in the battery pack where it is located, resulting in low equalization efficiency; if the equalization time of a single battery If it is too short, the balance effect will not be achieved

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