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

Abstract

The disclosure relates to a battery equalization method and system, a vehicle, a storage medium, and an electronic device. The method includes steps: obtaining a time change rate of a to-be-equalizedsingle battery in a battery pack; obtaining a reference time change rate required by equalization; determining a target equalization duration of the to-be-equalized single battery according to the time change rate of the to-be-equalized single battery and the reference time change rate; and controlling equalization of the to-be-equalized single battery according to the target equalization duration. The target equalization duration in an equalization process is calculated according to a difference between the time change rate of the to-be-equalized single battery and the reference time change rate so that the target equalization duration is more accurate, the equalization process is more accurate, and the condition of over-long or over-short equalization duration is avoided.

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

Images