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Novel battery management system

A battery management system, a new type of technology, applied in secondary batteries, secondary battery repair/maintenance, circuits, etc., can solve problems such as poor reliability, high cost, single failure failure, etc.

Active Publication Date: 2020-03-24
RISESUN MENGGULI NEW ENERGY SCIENCE & TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the high-voltage collection of battery packs in the industry is completed by the main board of the battery management system, which has problems such as poor accuracy, poor reliability, single failure failure, and high cost.

Method used

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Embodiment Construction

[0030] The battery management system provided by the present invention is characterized by redundancy, high availability, high precision, high reliability, and low cost, and can effectively solve the problem of poor high-voltage acquisition accuracy, poor reliability, single fault failure, and low cost of the battery management system in the prior art. advanced questions. The present invention will be described in detail below in conjunction with specific implementation methods and accompanying drawings.

[0031] Such as Figure 1-3 As shown, the present invention provides a novel battery management system, including:

[0032] battery pack 3, such as figure 2 As shown, the battery pack 3 includes N groups of battery modules connected in series; each battery module can be provided with multiple batteries according to requirements.

[0033] N slave boards 2 are provided corresponding to the N groups of battery modules and respectively connected in parallel to the N groups of...

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Abstract

The invention discloses a novel battery management system. The novel battery management system comprises a battery pack, a plurality of groups of battery cells connected in series and a plurality of relays respectively used for controlling each group of battery cells to work, a mainboard electrically connected with the battery pack and used for controlling each relay switch of the battery pack; and a plurality of slave boards, respectively connected in parallel with the battery pack and being in communication connection with the main board, the plurality of slave boards respectively collectingthe voltages of the plurality of groups of cells and forwarding the voltages to the mainboard, and the mainboard determining the fault diagnosis of the battery pack according to the received voltagevalues and the main contact state of the relay. The battery management system provided by the invention has the characteristics of redundancy, high availability, high precision, high reliability and low cost, and can effectively solve the problems of poor high-voltage acquisition precision, poor reliability, single failure, high cost and the like of the battery management system in the prior art.

Description

technical field [0001] The invention relates to the technical field of battery management control, in particular to a novel battery management system. Background technique [0002] With the release of IEC61508, ISO26262, EN50128, GB / T34590 and other standards related to functional safety, all walks of life have put forward strict requirements for functions related to personal safety. The evaluation standard of the industrial control industry is SIL level, and the evaluation standard of the automotive industry is ASIL. Diversity and redundancy requirements are put forward for functions related to personal safety. [0003] The battery pack, especially the vehicle battery pack, has a high voltage range of 300V-750V. This level of high voltage is enough to endanger personal safety, and it is necessary to avoid the danger of electric shock. As the brain of the battery system, the battery management system must predict risks in advance, so the accurate and reliable completion of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42
CPCH01M10/4207H01M10/425H01M2010/4271Y02E60/10
Inventor 郭长新冯全玉张锟吴亚凯
Owner RISESUN MENGGULI NEW ENERGY SCIENCE & TECHNOLOGY CO LTD