The Introduction to Battery Management System

Published:2010/8/8 21:13:00 Author:Li xiao na From:SeekIC

The battery management system is the important part of new energy automobiles, which integrates with the battery pack and control system to be three core technologies of the new energy automobile. With the popularization of the new energy automobiles, more and more corporations have recognized the function of the battery management system which has the great business opportunity. However, there are so many challenges at the development of this system. The challenges will become the obstacles which need to overcome in the further development of new energy automobiles.

There are three different aspects to show the importance of the battery management for the new energy automobile. Firstly, parameters of the traction battery can be detect by the system to ensure safe running of the battery and entire car; secondly, the parameters provided by this system helps the control system to make the appropriate control strategy, which is benefit to the dynamic, safety and low power consumption of the electric vehicle; Thirdly, this system is able to keep the battery in the best workspace through the detection of the parameters and battery condition, ensuring the utilizing efficiency and service life of the battery.

The performance of the battery like the stability, safety and service life is influenced by the temperature. Temperature management of the battery is to make the battery stay at the ideal temperature condition. Temperatures at every corner of the battery box should keep the same to avoid breaking the device. The identity is another focal point of the battery. The capacity and internal resistance of the batteries are different from batch to batch, because the craft and materials are different. The performance will have large differences after the usage. Other reasons may also cause the nonconformity, such as the self-discharge and the distribution of the voltage and current.

It is no doubt that the battery management will play an important role in the electric vehicle. The related integrated circuit is 1N5728.

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