Power lithium-ion battery pack intelligent management system specially used for electric automobile

An intelligent management system, a technology for electric vehicles, applied in electric vehicles, battery circuit devices, current collectors, etc., can solve problems such as reducing the performance of battery packs

Inactive Publication Date: 2012-05-09
SANMENXIA SUDA TRANSPORTATION ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the performance of one cell deteriorates, the behavior characteristics of the entire battery pack will be limited by this cell, reducing the overall battery pack performance

Method used

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  • Power lithium-ion battery pack intelligent management system specially used for electric automobile
  • Power lithium-ion battery pack intelligent management system specially used for electric automobile
  • Power lithium-ion battery pack intelligent management system specially used for electric automobile

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0027] see figure 1 , the present invention includes a controller, a charging module, an equalization module, a data acquisition module, an electric power calculation module, a data display module and a storage communication module; a charging module, an equalization module, a data acquisition module, an electric power calculation module, a data display module and a storage communication module They are respectively connected with the controller; the data acquisition module includes a voltage acquisition module, a current acquisition module and a temperature acquisition module; the main controller is the central processing unit in the figure.

[0028] The whole system uses single-chip microcomputer as the main controller. By collecting current information, it can judge whether the battery pack is charging, discharging or in idle state and whether there is over-current...

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PUM

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Abstract

The invention discloses a power lithium-ion battery pack intelligent management system specially used for an electric automobile. The power lithium-ion battery pack intelligent management system comprises a controller, a charging module, a balancing module, a data acquisition module, an electric quantity calculating module, a data display module and a storage communication module, wherein the charging module, the balancing module, the data acquisition module, the electric quantity calculating module, the data display module and the storage communication module are respectively connected with the controller; and the data acquisition module comprises a voltage acquisition module, a current acquisition module and a temperature acquisition module. The power lithium-ion battery pack intelligent management system disclosed by the invention takes a singlechip as a control core, and energy of each lithium battery is balanced while overcharging, overdischarging, overcurrent and temperature protection and short circuit protection can be realized.

Description

technical field [0001] The invention relates to a management system for a power lithium battery pack, in particular to an intelligent management system for a power lithium battery pack dedicated to an electric vehicle. Background technique [0002] Power battery technology is a technical bottleneck in the development of electric vehicles. Lithium batteries have gradually become the mainstream of power batteries due to their advantages of small size, light weight, high voltage, high power, less self-discharge and long service life. Due to the obvious nonlinear, inconsistent and time-varying characteristics of lithium-ion batteries, certain management is required during application. In addition, lithium batteries have high requirements for charging and discharging. When overcharging, overdischarging, excessive discharge current or short circuit occur, the temperature of lithium batteries will rise, which will seriously damage the performance of lithium batteries and shorten th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
Inventor 李复活李红宇李雪锋
Owner SANMENXIA SUDA TRANSPORTATION ENERGY SAVING TECH
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