Lithium ion power battery pack balanced discharge management system

A power battery pack and discharge management technology, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve the problems of complex control of the balance management system, battery over-discharge, high price, etc., and achieve easy mass production or automated production, Balanced discharge control is accurate and the effect of reducing production costs
CN101950995AInactive Publication Date: 2011-01-19SOUTH CHINA NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SOUTH CHINA NORMAL UNIVERSITY
Publication Date
2011-01-19
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a lithium ion power battery pack balanced discharge management system, which comprises an MCU central control unit, a voltage, current and temperature monitoring module for monitoring battery information, a balanced discharge module, a battery radiating module, a battery module and a high voltage power bus. The voltage, current and temperature monitoring module feeds monitored information back to the MCU central control unit; and after the monitored information is analyzed by the MCU central control unit, the operation of the battery radiating module and the balanced discharge module is controlled, and the battery module discharges through the high voltage power bus in a balanced way, wherein the balanced discharge module consists of a plurality of resistances and a plurality of analogue switches; each battery in the battery module is connected with the resistances and the analog switches; the resistances are used for distributing the current of the batteries; and the analog switches are used for controlling the operation of the resistances. The lithium ion power battery pack balanced discharge management system has the advantages of accurate control of the balanced discharge, higher safety and support of heavy-current discharge.
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Description

technical field

[0001] The invention belongs to the technical field of battery management, and in particular relates to a lithium-ion power battery pack balanced discharge management system. Background technique

[0002] Due to energy and environmental considerations, electric vehicles have achieved rapid development under the joint promotion of governments and automakers. Pure electric vehicles have become one of the important development directions of electric vehicles because they can truly achieve "zero emissions". As a green means of transportation, electric vehicles will bring great changes to human society in the 21st century. Lithium-ion batteries have become an ideal power source for pure electric vehicles due to their high energy density and high voltage platform. However, lithium-ion batteries are less resistant to abuse. The safety and long life of lithium-ion batteries, especially group lithium-ion batteries, have become an urgent problem to be solved in the ...

Claims

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