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Extensible hybrid battery management system

A battery management system and hybrid technology, applied in secondary batteries, battery circuit devices, secondary battery repair/maintenance, etc., can solve problems such as low cost, achieve enhanced reliability, reduce hardware costs, and enhance scalability and practical effect

Active Publication Date: 2016-09-28
SUNWODA ELECTRIC VEHICLE BATTERY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the perspective of realizing BMS functions, there is no insurmountable technical threshold; but from the perspective of actual use, the difficulties of BMS products are concentrated in low cost, high reliability, high scalability, high maintainability, etc. , and neither the centralized management system nor the distributed management system can solve these problems well

Method used

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Embodiment Construction

[0025] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] refer to figure 1 , is a schematic structural diagram of a scalable hybrid battery management system in an embodiment of the present invention.

[0027] In one embodiment of the present invention, a scalable hybrid battery management system is proposed, which is connected to multiple or one battery module 40 for monitoring the status information of the battery module 40 and managing the use of the battery module 40 process. It includes a main processing unit 10 and zero or more (more than one) expandable sub-units 20 . The number of expandable subunits 20 can be increased or decreased according to actual usage conditions, and an appropriate number can be selected according to system configuration. A daisy chain communication connection is adopted between the main processing unit 10 and the expandable sub-uni...

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Abstract

The invention puts forward an extensible hybrid battery management system, which comprises a main processing unit and extensible subunits, wherein the main processing unit and the extensible subunits as well as adjacent extensible subunits are connected through a daisy chain communication way; the extensible subunits collect the voltage and the temperature of a current battery cell module, executes a balance function and a fault diagnosis function and transmits battery cell module information which is currently managed to the main processing unit through the daisy chain communication way; the main processing unit operates a preset system strategy and communicates with external equipment according to the voltage, the current, the temperature and the system fault information of all battery cell modules. The extensible hybrid battery management system provided by the invention monitors and manages the voltage, the current, the temperature and the system fault information of the battery cell modules to guarantee that the battery cell modules normally work, and the extensible hybrid battery management system has the advantages of high expandability, maintainability and reliability.

Description

technical field [0001] The invention relates to the technical field of battery management systems, in particular to an expandable hybrid battery management system. Background technique [0002] The battery management system is one of the important components of the battery module. It is used to manage the voltage, temperature, current and other information of the battery module, and manage the charging and discharging process of the battery module and communicate with the controller, charger, instrument , UPS and other external devices for communication and exchange, so as to better and more properly monitor and manage the battery status. [0003] In the power cell module, limited by the impact of solution cost and scalability, BMS (battery management system) can be divided into two types of architectures: centralized BMS and distributed BMS. [0004] For centralized BMS, its cost is low and its control is simple; however, it has problems such as poor scalability, poor main...

Claims

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Application Information

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IPC IPC(8): H01M10/42B60L11/18
CPCB60L58/10H01M10/425H01M10/4257H01M2010/4271H01M2010/4278Y02E60/10Y02T10/70Y02T90/16
Inventor 雷晶晶唐智徐童辉穆明
Owner SUNWODA ELECTRIC VEHICLE BATTERY CO LTD
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