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Wireless battery management system and battery pack including same

A management system, wireless battery technology, applied in battery/battery traction, battery/fuel cell control devices, battery circuit devices, etc., can solve the problem of electric energy not being used effectively, achieve rapid balance over discharge and prevent over discharge Effect

Active Publication Date: 2019-07-09
LG ENERGY SOLUTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, the prior art including Patent Document 1 has limitations in the use of electric energy of the battery because the electric energy is not effectively utilized and consumed only by balancing

Method used

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  • Wireless battery management system and battery pack including same
  • Wireless battery management system and battery pack including same
  • Wireless battery management system and battery pack including same

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Embodiment Construction

[0040] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Before the description, it should be understood that the terms or words used in the specification and appended claims should not be interpreted as being limited to general and dictionary meanings, but based on the principle that allows the inventor to define the terms appropriately to obtain the best interpretation based on the corresponding The technical meaning and concepts of the present disclosure are explained.

[0041] Therefore, the embodiments described here and the illustrations shown in the drawings are only the most preferred embodiments of the present disclosure, but are not intended to fully describe the technical aspects of the present disclosure. Therefore, it should be understood that the application may be Various other equivalents and modifications are made to it.

[0042] In addition, when describing the present disclosure,...

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Abstract

Disclosed are a wireless battery management system and a battery pack including the same. The wireless battery management system comprises: a plurality of slave BMSs installed in a plurality of battery modules, respectively, on a one-to-one basis, each of the slave BMSs being configured to operate, in an active mode and a sleep mode, using power supplied from a battery module in which the slave BMS itself is installed, and wirelessly transmit, in the active mode, a detection signal indicating a state of the battery module in which the slave BMS itself is installed; and a master BMS configuredto wirelessly receive the detection signal from each of the plurality of slave BMSs. The master BMS sets a scan period and a scan duration for each of the plurality of slave BMSs, on the basis of thedetection signal, and wirelessly transmits, to the plurality of slave BMSs, a control signal including a wireless balancing command indicating the scan period and the scan duration set for each of theplurality of slave BMSs.

Description

Technical field [0001] The present disclosure relates to a wireless battery management system, and more particularly, to a wireless battery management system for reducing the remaining capacity deviation between battery modules, and a battery pack including the battery management system. [0002] This application claims priority from Korean Patent Application No. 10-2017-0091674 filed in Korea on July 19, 2017, the disclosure of which is incorporated herein by reference. Background technique [0003] Recently, the demand for portable electronic products such as laptop computers, video cameras, and mobile phones has increased dramatically, and with the extensive development of electric vehicles, storage batteries for energy, robots, and satellites, the Many studies have been conducted on high-performance secondary batteries. [0004] Currently, commercially available secondary batteries include nickel-cadmium batteries, nickel-hydrogen batteries, nickel-zinc batteries, lithium second...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/42B60L50/50
CPCB60L50/50H01M10/425H01M10/482H01M10/4207H01M2010/4271H04W84/00B60L58/22B60L58/12B60L2260/54H02J2310/48H02J2310/18H02J7/0016H02J7/00032H02J7/0048Y02D30/70H02J7/005H02J7/0014H02J7/00
Inventor 金之恩成昌炫李相勋崔然植
Owner LG ENERGY SOLUTION LTD
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