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Modular intelligent battery management system

A management system and smart battery technology, applied in battery charging management, battery circuit devices, arrangement of multiple synchronous batteries, etc., can solve the problem of battery pack energy storage decline, excessive performance parameter differences, battery pack maintenance time-consuming and labor-intensive And other issues

Pending Publication Date: 2017-09-19
肖华军
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the performance parameters of the single cells are too different from each other, the energy storage of the battery pack will drop sharply after a period of use
At the same time, it is also very labor-intensive and time-consuming to maintain a battery pack composed of a large number of single cells

Method used

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0019] Such as figure 1 As shown, the battery management system shown in the present invention is composed of a main battery management system 100 and n sub-battery management systems 200, and the main battery management system 100 and the sub-battery management systems 200 are connected by several series charging and discharging lines and parallel charging lines and the control bus.

[0020] Such as figure 2 As shown, the sub battery management system 200 has a detection control unit 210, the detection control unit 210 is connected to the control bus C1 through the t...

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Abstract

The invention relates to a modular intelligent battery management system, particularly to a modular intelligent battery management system and a driving method thereof. A main battery management system is connected in series with sub-battery management systems by a plurality of series charge and discharge lines and is connected with the sub-battery management systems by a plurality of parallel charge and discharge lines. The main battery management system can carry out optimized charging and discharging based on practical states of parallel battery groups installed at the sub-battery management systems; and the simple wire connection of the systems is realized. The requirement on single battery parameter consistency in the battery groups can be reduced, so that the battery purchasing costs can be lowered. On the basis of the modular battery structure, the maintenance difficulty and cost can be reduced. With the flexible charging and discharging ways, the cycle service life of the battery can be prolonged while rapid charging and discharging are realized.

Description

technical field [0001] The invention relates to a modular intelligent battery management system and a driving method thereof, which can simultaneously charge and discharge different battery packs with different parameters. Background technique [0002] Most of the existing electric vehicles use battery power as energy to drive the vehicle. Due to the limitation of battery technology, a large number of single batteries are usually connected in parallel and connected in series to provide energy for the vehicle. [0003] The cells used to make up the battery pack need to be carefully selected to ensure that the performance parameters of all cells are consistent. If the performance parameters of the single cells are too different from each other, the energy storage of the battery pack will drop sharply after a period of use. At the same time, it is also very labor-intensive and time-consuming to maintain a battery pack composed of a large number of single cells. [0004] In ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00B60L11/18
CPCH02J7/0022H02J7/0016H02J7/0019B60L58/12B60L58/18Y02T10/70
Inventor 不公告发明人
Owner 肖华军
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