Parallel battery pack control method and system, electronic equipment and vehicle

A control method and technology of electronic equipment, applied in the control of parallel battery packs, the control system of parallel battery packs, and the field of vehicles, can solve the problems that lithium battery packs cannot be connected in parallel, use in parallel, and it is difficult to use multiple lithium battery packs, etc., to achieve Ease of deployment and implementation

Active Publication Date: 2021-04-02
SVOLT ENERGY TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when trying to use lithium battery packs in parallel, due to the existence of the battery management system, lithium battery packs cannot be directly connected in parallel like lead-acid b

Method used

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  • Parallel battery pack control method and system, electronic equipment and vehicle
  • Parallel battery pack control method and system, electronic equipment and vehicle
  • Parallel battery pack control method and system, electronic equipment and vehicle

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0054]Example 1

[0055]The embodiment of the present invention provides a method of controlling a parallel battery pack, which includes:

[0056]S1) Determine the main control unit corresponding to the battery management system of the parallel battery pack, wherein the battery management system that is not determined to be the main control unit is determined as the slave unit of the master unit;

[0057]S2) Feedback to the branch detection data of the battery pack corresponding to the first battery management system to the master unit, wherein the branch detection data includes a branch current corresponding to the first battery management system. The first battery management system can be one or more battery management systems;

[0058]S3) The control command issued by the master unit is received by the second battery management system, wherein the control instruction is determined by the main control unit through the branch detection data, the first battery management system and the The seco...

Example Embodiment

[0074]Example 2

[0075]Embodiments of the present invention are in the same aspect of the same embodiment, and embodiments of the present invention provide a control system for a parallel battery pack including:

[0076]The master determination module is confirmed to determine the main control unit corresponding to the battery management system of the parallel battery pack, wherein the battery management system that is not determined to be the master unit is determined as the slave unit of the main control unit;

[0077]The data feedback module is used to feed back the branch detection data of the battery pack corresponding to the first battery management system to the master unit, wherein the branch detection data includes a battery pack corresponding to the first battery management system. Board current;

[0078]The data receiving module is configured to receive a control command issued by the master unit by the second battery management system, wherein the control instruction is determined ...

Example Embodiment

[0081]Example 3

[0082]The embodiments of the present invention are in the same aspect of the same inventive embodiments, and embodiments of the present invention provide a power supply device including a parallel battery pack, the parallel battery pack and a load device or a main circuit forming with a charging device. The parallel battery pack includes a plurality of battery packs, and each battery pack is in a branch, and a battery module, a discharge switch, and a charging switch are connected in series, and the discharge switch is also connected in parallel with the first trigger diode and A positive electrode of a trigger diode is connected to the negative electrode of the battery module, and the charging switch is also connected in parallel with the second trigger diode and the negative electrode of the second trigger diode is connected to the first trigger diode; the discharge switch The charging switch, the first trigger diode and the second trigger diode can be configured on...

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Abstract

The invention provides a parallel battery pack control method and system, electronic equipment and a vehicle, and belongs to the technical field of batteries. The method comprises the following steps:determining a main control unit corresponding to a battery management system of a parallel battery pack; feeding back the branch detection data of the battery pack corresponding to a first battery management system to the main control unit; receiving a control instruction sent by the main control unit through a second battery management system, wherein the control instruction is determined by themain control unit through the branch detection data, and both the first battery management system and the second battery management system are determined as slave units; and according to the controlinstruction, making a battery pack corresponding to the second battery management system be added into or withdrawn from a main loop, wherein the main loop comprises the parallel battery pack and loadequipment, or the main loop comprises the parallel battery pack and charging equipment. The method can be used for parallel connection of the lithium battery packs.

Description

technical field [0001] The present invention relates to the technical field of batteries, in particular to a control method for parallel battery packs, a control system for parallel battery packs, an electronic device and a vehicle. Background technique [0002] With the continuous improvement of living standards, hybrid or electric vehicles such as RVs and minivans are gradually being purchased for people's use needs. As a vehicle mainly used for outdoor life or long-distance running, backup power is particularly important, such as RVs, the demand for backup power is increasing, and it is difficult for lead-acid batteries to meet the demand. People are beginning to focus on lithium batteries with higher energy density. . Lithium batteries usually need to be used with a battery management system (Battery Management System, BMS). The battery management system can monitor battery voltage, temperature, current and other parameters, and perform protection based on these data, s...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0016H02J7/0029H02J7/00302H02J7/00306H02J7/0019H02J7/00304H02J7/00308H02J7/00309
Inventor 杨逊王君生谈作伟汤胤博李庆
Owner SVOLT ENERGY TECHNOLOGY CO LTD
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