Balancing control system and method for cell array

Abstract

The invention relates to a balancing control system and a method for a cell array. A standby cell is added to an end of each column, and a column of cells is added as a standby battery. A cell management chip in a BMS second module acquires temperature, current and voltage signals and transmits them to a BMS first module through a K wire; data of voltage, current and temperature of the cells is transmitted to the first module through the K wire for comparison, and any fault cell discovered is substituted; and during normal operation, the BMS second module controls individual cell rotation, and the BMS first module controls battery rotation. The invention overcomes defects that a prior cell management system can only prompt and alarm when a cell fault occurs, and that continuous usage causes destroy on the battery. According to the invention, once a certain fault cell is discovered, it will be automatically substituted by the standby cell; If no fault occurs, a standby individual cell substituting a normal cell in usage is called rotation, so as to solve cell management bottleneck in the development of motorcycle.

Description

technical field [0001] The invention relates to a battery array device, in particular to a battery array balance control system and method. Background technique [0002] Electric vehicles have been greatly developed and widely used due to the advantages of energy saving, environmental protection, simple structure, and easy popularization. An electric vehicle is a vehicle whose power system is fully or partially driven by electric energy. Therefore, the battery management system plays a pivotal role in the entire electric vehicle as the power system of the electric vehicle. A good battery management system can ensure the driving safety of the vehicle, increase battery life, provide useful information to the driver, reduce energy consumption, etc. [0003] Before the present invention, the battery management systems of some existing electric vehicles can detect the temperature, voltage and current of a single battery, monitor and maintain the performance of a single battery p...

AI Technical Summary

Problems solved by technology

[0004] However, these battery management systems usually only perform prompt and alarm functions when the battery breaks down, so as to remind the user to replace or dispose of it. damage to the battery pack

In addition, electric vehicles need a lot of batteries to form a battery pack, and the temperature may be too high during use. It is obviously not enough to rely on fans to cool down.

Images