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Cell management system

A technology of battery management system and battery management unit, which is applied in secondary batteries, battery circuit devices, circuits, etc., to achieve the effects of strong scalability, high system integration, and simple structure

Inactive Publication Date: 2015-08-26
SHENYANG ZHONGKE E WAY ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of use, the collective management includes the detection of a series of parameters such as the charging and discharging current, voltage, temperature of the battery in actual use and the balancing process between the batteries is a worldwide technical problem

Method used

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Embodiment Construction

[0056] A specific embodiment of the battery management system of the present invention will be described below with reference to the accompanying drawings.

[0057] like Figure 1-11 As shown, a battery management system is composed of three parts: a main board, a current limiting board, and a display board; the main board is the technical core of the system, and the main board completes the monitoring of the voltage and temperature of a single battery, balance management, monitoring of the total voltage and current Manage charging, discharging, and battery operating status, and at the same time complete the estimation of the SOC of the battery pack, charge and discharge statistics, system protection, fault diagnosis and alarm. The current limiting board limits the charging current of the charger, and the display board completes the data terminal display function of the battery management system.

[0058]The main board mainly includes: main microcontroller 7, total current de...

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Abstract

The invention discloses a cell management system. The system is formed by a mainboard, a current limiting board and a display panel. The mainboard is a technology core of the system. The mainboard completes monitoring of a voltage of a single cell and a temperature and equalization management, monitors the total voltage and the current, manages charging, discharging and a cell running state, estimates a battery-pack charged state and carries out system protection and fault diagnosis alarm. The current limiting board limits a charging current of a charger. The mainboard controls on and off of the current limiting board through a switching value. The display panel completes a state information display function of the battery pack. The mainboard and the display panel are communicated by using serial port communication. Through the display panel, a current cell management system state can be known in real time. The system possesses a cascade function. Communication connection is performed on a plurality of systems through an RS485 interface. Through using an RS485 bus, a transmission rate is increased; electromagnetic interference is effectively reduced and information transmission accuracy is guaranteed. The mainboard can send cell system information to an upper computer and the information can be displayed through the upper computer.

Description

technical field [0001] The invention belongs to the field of battery management systems, in particular to a lithium-powered battery management system applied to communications. technical background [0002] With the increasingly prominent energy problems of economic development and the gradual enhancement of people's awareness of environmental protection, the development of new energy, especially in the field of communications and automobiles has become a consensus among people and is the main development direction in the future. As an important energy source, lithium batteries can be used safely, stably and for a long time. However, in the process of use, the collective management includes the detection of a series of parameters such as the charging and discharging current, voltage, temperature of the battery in actual use and the equalization among batteries is a worldwide technical problem. The battery management system in the present invention can be adapted to a small-...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/48
CPCY02E60/10
Inventor 宋恒玉齐晗李红亮代文旭王玉婷
Owner SHENYANG ZHONGKE E WAY ELECTRONICS TECH CO LTD
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