Distributed type battery managing system and managing method

A battery management system and distributed technology, applied in battery circuit devices, current collectors, measuring electricity and other directions, can solve the problems of difficulty in mass production and application, unreliable protection, and large system size, achieving good practical value and solving charging problems. Uneven, small size effect

Active Publication Date: 2009-06-24
BYD CO LTD
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AI Technical Summary

Problems solved by technology

However, since the software processing of the data must be sent to the general manager for processing, there is still a certain delay
Although this method can meet the requirements well in terms of performance, there are few practical applications. The reason is very simple, because in fact, each battery has an independent battery manager to manage it, so the cost is too high. High, it is difficult to achieve mass production applications
Moreover, the system volume is also very large, which is not conducive to integration into the battery pack
Only one level of management, protection is not reliable enough

Method used

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  • Distributed type battery managing system and managing method
  • Distributed type battery managing system and managing method
  • Distributed type battery managing system and managing method

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Embodiment Construction

[0024] Such as image 3 , 4 As shown, the distributed management system of the battery pack includes three parts, namely the battery pack data sampling module, the battery sampling management module and the battery data comprehensive analysis and processing module. The battery pack data sampling module adopts the new PS501 battery sampling chip of MicroChip Company. It can simultaneously monitor each of the four batteries connected in series, and send the precise measurement values ​​of the voltage, current, temperature and capacity of each battery in one data packet to the A battery sampling management module (that is, a battery sampling management chip of the lower computer) connected to the battery pack data sampling module. In this way, the real-time performance of battery data sampling can be well guaranteed.

[0025] In addition, since the IO port of the PS501 chip is programmable to set the battery protection function, as long as the initial values ​​of the battery pr...

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Abstract

The invention relates to the management of rechargeable batteries, and proposes a distributed battery management system and management method, including a battery pack data sampling module and a battery sampling management module. Sampling is performed, and the sampling value of each battery is output to the battery sampling management module, and the battery sampling management module responds to the output of at least two battery pack data sampling modules and performs corresponding processing. The battery pack data sampling module realizes the primary protection of the battery pack, and the battery sampling management module realizes the secondary protection of the battery pack. The invention has a good sampling speed, realizes real-time monitoring of a single battery or a battery pack, and realizes multi-level and fast battery protection response actions, and has low cost, so that mass production can fully meet requirements in terms of cost and performance.

Description

【Technical field】 [0001] The invention relates to a management system and a management method for sampling and managing the voltage, current, capacity and temperature of batteries, in particular to a distributed real-time management system and management method. 【Background technique】 [0002] With the increase of electric equipment, the application of rechargeable battery packs is becoming more and more extensive. During the application process of battery packs, it is necessary to monitor the battery packs and collect the current, voltage, temperature and remaining capacity of each battery. The sampling values ​​are compared and analyzed. When the situation exceeds the threshold range, the control protection module takes action to protect the battery. [0003] The usual battery pack sampling management methods are the following two: [0004] 1. Centralized battery pack management method, as shown in Figure 1. The advantage of this method is that the structure is relativel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H7/18G01R31/36H02J7/00
Inventor 贺小为邱从征张俊邓林旺
Owner BYD CO LTD
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