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A method for realizing full cycle charge and discharge of multiple battery packs

A battery pack, charging and discharging technology, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve the problem of inability to realize full cycle charging and discharging, and achieve the effect of easy operation and strong reliability

Active Publication Date: 2018-02-27
CHENGDU UNI LINK ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a simple, easy-to-operate, and highly reliable method for realizing full-cycle charging and discharging of multiple battery packs, and solve the problem that the prior art cannot realize full-cycle charging and discharging

Method used

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  • A method for realizing full cycle charge and discharge of multiple battery packs
  • A method for realizing full cycle charge and discharge of multiple battery packs
  • A method for realizing full cycle charge and discharge of multiple battery packs

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Embodiment Construction

[0032] Describe technical scheme of the present invention in further detail below in conjunction with accompanying drawing: as figure 1 As shown, a method for realizing full-cycle charging and discharging of multiple battery packs includes a battery pack charging step, a battery pack discharge step and a protection step; as figure 2 As shown, the battery pack includes a plurality of battery modules connected in parallel, such as image 3 As shown, the battery module includes a charging MOS tube, a discharging MOS tube, a current detection module, a relay, and a battery connected in series, and also includes a control module connected to the charging MOS tube, the discharging MOS tube, the current detection module, and the battery;

[0033] The step of discharging the battery pack includes the following sub-steps:

[0034] S11: Before the discharge process, all the charging MOS tubes are in the off state, all the discharging MOS tubes are in the on state, and all the battery ...

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Abstract

The invention discloses a method for realizing the full-cycle charge and discharge of multiple battery packs, which includes a battery pack charging step, a battery pack discharge step and a protection step; during the discharge process, the control module monitors the current passing through the current detection module and the voltage of the battery Sampling: When the control module detects that there is a discharge current passing through the current detection module, the control module turns on the charging MOS tube; when the control module detects that the battery voltage reaches the over-discharge threshold, the control module turns off the discharging MOS tube ;Until all discharge MOS tubes are in the off state, it means that all battery modules are discharged. The method for controlling the opening and closing of the charging MOS tube and the discharging MOS tube of the present invention solves the problem that battery modules of different voltage levels are connected in parallel and cause mutual charging and discharging; and realizes that all battery modules are in a parallel busbar In the case of a loop, each battery module realizes the full cycle process of charging and discharging.

Description

technical field [0001] The invention relates to a method for realizing full-cycle charging and discharging of multiple battery packs. Background technique [0002] With the vigorous development of electronic technology, the use of medium and large battery packs is increasing. During the production, testing and use of these battery packs, many charging and discharging processes are used. [0003] The existing charging equipment or discharging equipment has the following disadvantages: [0004] 1. The battery packs need to use the same type of battery modules for parallel use, that is, the parallel battery packs require the same voltage for each battery, and it is not possible to parallel input and output battery modules of completely different types and voltage levels. Because in the battery pack, the difference between the monomers always exists. Take the capacity as an example, the difference will never disappear, but will gradually deteriorate. The same current flows th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
Inventor 毛珂
Owner CHENGDU UNI LINK ENERGY
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