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Battery device, battery management system, and method for diagnosing power supply voltage of contactor

A power supply voltage and battery device technology, which is applied in battery/fuel cell control devices, power consumption devices, and measurement of current/voltage, can solve problems such as incomplete closure of contactors and failures, and achieve the effect of preventing insufficient power supply voltage

Pending Publication Date: 2022-04-08
LG ENERGY SOLUTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the contactor may not be fully closed and may fail

Method used

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  • Battery device, battery management system, and method for diagnosing power supply voltage of contactor
  • Battery device, battery management system, and method for diagnosing power supply voltage of contactor
  • Battery device, battery management system, and method for diagnosing power supply voltage of contactor

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Embodiment Construction

[0030] In the following detailed description, certain embodiments are shown and described, by way of illustration only. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive. Throughout the specification, the same reference numerals denote the same elements.

[0031] When it is described that an element is "connected" to another element, it will be understood that the element may be directly connected to the other element or be connected to the other element through a third element. On the other hand, when it is described that an element is "directly connected" to another element, it will be understood that the element is not connected to the other element through a third element.

[0032] As used herein, a singular form may also be intende...

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PUM

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Abstract

And a plurality of driving circuits that respectively drive the plurality of contactors based on a power supply voltage, the plurality of drivers connecting the battery pack to an external device. A processing circuit controls a plurality of drive circuits to sequentially close a plurality of contactors in a predetermined order, and checks a supply voltage thereof before closing each contactor.

Description

technical field [0001] Cross References to Related Applications [0002] This application claims priority and benefit from Korean Patent Application No. 10-2020-0091092 filed with the Korean Intellectual Property Office on July 22, 2020, the entire contents of which are hereby incorporated by reference. [0003] The described technology relates to a battery device, a battery management system, and a method of diagnosing the supply voltage of a contactor. Background technique [0004] An electric vehicle is a vehicle that obtains power by driving a motor mainly using a battery as a power source. Electric vehicles are being actively researched as they are an alternative that could solve the pollution and energy problems of internal combustion engine vehicles. Rechargeable batteries are used in various external devices other than electric vehicles. [0005] In order to supply power from a battery to an external device such as a vehicle or an electronic device or to charge a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/364G01R31/396G01R31/3835G01R19/165B60L58/10H01M10/42
CPCB60L3/0046G01R19/16542G01R31/3278H01H47/002Y02T10/70G01R31/364G01R31/3835G01R31/396G01R31/3644G01R19/16566B60L58/10
Inventor 金秀权
Owner LG ENERGY SOLUTION LTD