Lithium battery equalization discharge algorithm

Abstract

The present invention discloses a lithium battery equalization discharge algorithm. The lithium battery equalization discharge algorithm comprises a lithium battery set including three lithium battery monomers, an MCU control module, a voltage stabilizing circuit, three groups of RC parallel circuits, a conduction control circuit, three groups of driving control circuits and a PWM regulation circuit. The algorithm concretely comprises the followings steps: the step A: a button switch in the conduction control circuit is started, and the MCU control module provides a high level from the conduction control circuit; the step B: when a load motor starts work, the load motor is subjected to soft starting; the step C: the limiting values of the falling speed of different lithium battery monomers are obtained according to M=L+K; the step D: the MCU control module emits PWM duty ratio regulation signals to ensure that M and L values consistently reach balance discharge; and the step E: the MCU control module detects whether the button switch presses down or not or the battery has been in over-charging state or not, and the discharge control is completed through disconnection. The operation is rapid, the discharge efficiency and the discharge stability are improved, the applicability is high and the practicality is good.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a lithium battery equalization discharge algorithm. Background technique [0002] Due to the difference in the manufacturing process of lithium batteries, when the lithium battery pack is discharged at a high rate, there will inevitably be an imbalance between the battery pack and the monomers. There is no active discharge algorithm in the traditional technology, so it cannot reach a certain extent. To the purpose of protecting the battery, the service life of the battery will be affected, and the applicability and practicability are limited. Contents of the invention [0003] The main purpose of the present invention is to provide a balanced discharge algorithm for lithium batteries, which aims to solve the deficiency of no square discharge algorithm in the traditional technology, so as to improve the service life of the battery. [0004] The invention proposes a li...

AI Technical Summary

Problems solved by technology

[0002] Due to the difference in the manufacturing process of lithium batteries, when the lithium battery pack is discharged at a high rate, there will inevitably be an unbalanced phenomenon in the battery pack to the monomers. There is no active discharge algorithm in the traditional technology, so it cannot be achieved to a certain extent. For the purpose of protecting the battery, it will affect the service life of the battery, and the applicability and practicability are limited

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