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Battery management system and method thereof

A battery management system and battery management technology, applied in the direction of secondary batteries, battery pack components, circuits or fluid pipelines, etc., can solve problems such as unbalanced charging and discharging of single batteries, achieve balanced voltage imbalance, and improve problems Effect

Inactive Publication Date: 2010-04-07
SHENZHEN HANGSHENG ELECTRONICS
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  • Summary
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AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem of unbalanced charge and discharge between single cells in lithium-ion batteries in the prior art, it is necessary to provide a battery management system for balanced control of lithium-ion single cells
[0009] In order to solve the problem of unbalanced charge and discharge between single cells in lithium-ion batteries in the prior art, it is also necessary to provide a battery management method for balanced control of lithium-ion single cells

Method used

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  • Battery management system and method thereof
  • Battery management system and method thereof
  • Battery management system and method thereof

Examples

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Embodiment Construction

[0026] see figure 1 , is a block principle diagram of a preferred embodiment of the battery management system of the present invention. The battery management system 10 includes a battery pack 100 , a slave controller 200 , a master controller 400 , a junction box 500 and a sensor 700 . The battery pack 100 is connected to the slave controller 200 . The slave controller 200 is connected to the master controller 400 through an internal CAN bus 300 . The master controller 400 is connected to the junction box 500 and is also connected to an external CAN bus 600 . The sensor 700 is connected to the main controller 400 .

[0027] The battery pack 100 is used to provide power for electric vehicles. The slave controller 200 is used to detect the battery data of the battery pack 100 and send the detected battery data to the master controller 400, and the master controller 400 passes the slave controller 200 to the battery pack according to the received battery data. 100 for balan...

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Abstract

The invention relates to a battery management system, which comprises a battery pack, a slave controller and a master controller, wherein the battery pack is connected to the slave controller; the slave controller is connected to the master controller; the battery pack is used for supplying power to an electric vehicle; the slave controller is used for detecting battery data of the battery pack and sending the detected battery data to the master controller; and the master controller performs balanced management on the battery pack through the slave controller according to the received battery data. The invention also relates to a battery management method.

Description

technical field [0001] The invention relates to a battery management system, in particular to a vehicle battery management system with a balance management function. The invention also relates to a battery management method for realizing balanced management. Background technique [0002] The rapid development of China's transportation industry is posing more and more challenges to the environment. The number of cars on the road in the country is increasing at a rate of 10 million per year. Exhaust gas emitted by ordinary cars has become a source of air pollution that cannot be ignored. [0003] Electric vehicles replace oil with electricity, which can achieve "zero emission" and low noise, and are an important means to solve energy and environmental problems. With the shortage of oil resources and the development of battery technology, electric vehicles are close to or even superior to traditional fuel vehicles in terms of performance and economy, and have begun to be gra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/00H01M10/48H01M10/42H01M10/36H01M2/20B60R16/033
CPCY02E60/12Y02E60/10
Inventor 吴义勇
Owner SHENZHEN HANGSHENG ELECTRONICS
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