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Slave control module, battery management system and method and storage medium

A battery management system and battery technology, which are applied in the direction of battery disconnection circuit, battery data exchange, battery circuit device, etc., can solve the problems of poor working stability of power battery pack, insufficient battery monitoring and management technology, etc., to ensure stable working. sexual effect

Inactive Publication Date: 2021-11-16
SHENZHEN AUTOMOTIVE RES INST BEIJING INST OF TECH (SHENZHEN RES INST OF NAT ENG LAB FOR ELECTRIC VEHICLES)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is that in the prior art, the monitoring and management technology for the operating state of the battery is not perfect enough, resulting in poor working stability of the power battery pack

Method used

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  • Slave control module, battery management system and method and storage medium
  • Slave control module, battery management system and method and storage medium
  • Slave control module, battery management system and method and storage medium

Examples

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Embodiment 1

[0029] An electric vehicle has multiple battery packs for providing electric energy. The battery packs include multiple single cells connected in series and parallel (hereinafter referred to as batteries). Under ideal conditions, the voltage, power and temperature of each battery are consistent. In the actual use process, the voltage, power and temperature of each battery have certain differences. When an abnormally working battery appears in the battery pack, the overall working stability of the battery pack is affected.

[0030] Such as figure 1 As shown, the present invention provides a battery management system, including a main module 1 and at least one slave control module 2, each slave control module 2 is used to monitor and manage at least one battery pack 3, and each battery pack 3 includes At least one battery.

[0031] Wherein, the main module 1 is used to obtain the electric energy parameter and the temperature parameter of the battery of the slave control module...

Embodiment 2

[0046] The following describes the specific process of the battery management system for battery management, such as Figure 4 As shown, the battery management method provided by the present invention includes the following steps:

[0047] Step 100: Obtain electric energy parameters and temperature parameters of multiple batteries.

[0048] Specifically, the electric energy collection module 21 collects voltage parameters and power parameters of multiple batteries, and the temperature collection module 22 collects temperature parameters of multiple batteries. The processing module 25 acquires the power parameters and temperature parameters, performs digital-to-analog conversion, and then transmits them to the main module 1 through the communication module 24, so that the main module 1 realizes the acquisition of the battery power parameters and temperature parameters.

[0049] Step 200: The main module 1 judges the operating state of the battery according to the electric ener...

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Abstract

The invention provides a slave control module, a battery management system and method and a storage medium. An electric energy acquisition module acquires electric energy parameters of a plurality of batteries; a temperature acquisition module acquires temperature parameters of the plurality of batteries; an equalization module connects or disconnects the batteries with or from a charging and discharging system; a communication module is in communication connection with a main module of the battery management system; a processing module sends the electric energy parameters and the temperature parameters to the main module through the communication module according to the electric energy parameters and the temperature parameters of the batteries; and a control instruction sent by the main module is received through the communication module, in response to the control instruction, and the equalization module is controlled to connect or disconnect the batteries with or from the charging and discharging system. Therefore, the processing module can control the equalization module according to the collected electric energy parameters and the temperature parameters, the charging and discharging modes of the batteries are switched in real time, the monitoring and management of the running states of the batteries are realized, and the working stability of the battery pack is ensured.

Description

technical field [0001] The invention relates to the technical field of battery management, in particular to a slave control module, a battery management system, a method and a storage medium. Background technique [0002] With the advancement of science and technology and the increasing demand for environmental protection, electric vehicles are becoming more and more popular in social life. An electric vehicle refers to a vehicle driven by an on-board power supply (usually a battery pack) and driven by a motor, so it has less impact on the environment than traditional vehicles. [0003] The vehicle power battery pack is composed of hundreds of single cells connected in series and parallel, with high total voltage and large charging current. The voltage and temperature of the battery must be kept within a reasonable range during the charging and discharging process. Due to the tight connection between the single cells, the working status of each single cell will have an impa...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0014H02J7/0047H02J7/00712H02J7/007192H02J7/0031H02J7/00032
Inventor 南金瑞曹万科胡敏张林叶许成
Owner SHENZHEN AUTOMOTIVE RES INST BEIJING INST OF TECH (SHENZHEN RES INST OF NAT ENG LAB FOR ELECTRIC VEHICLES)
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