Load holding circuit applied to battery management system

A battery management system and load holding technology, applied in battery/fuel cell control devices, electrical devices, electric vehicles, etc., can solve problems such as vehicle power loss, traffic accident, relay disconnection, etc., and reduce unexpected interruptions. The effect of opening and ensuring safety

Active Publication Date: 2020-04-07
컨템포러리엠퍼렉스테크놀로지씨오리미티드
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the process of researching the prior art, the inventor found that in the relay control system, the situation that the relay control signal is lost due to the reset of the micro cont

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  • Load holding circuit applied to battery management system
  • Load holding circuit applied to battery management system
  • Load holding circuit applied to battery management system

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, various implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in this application can also be realized.

[0035] The serial numbers assigned to components in this document, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in this application all include direct and indirect connection...

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Abstract

The embodiment of the invention relates to the field of new energy vehicles, and discloses a load holding circuit applied to a battery management system, which comprises a first microcontroller, a second microcontroller, a logic unit and a driving unit, wherein the first microcontroller and the second microcontroller are electrically connected to the input end of the logic unit; the output end ofthe logic unit is electrically connected to the control end of the driving unit; the output end of the driving unit is electrically connected to the control end of a load circuit in a battery pack high-voltage loop; yhe logic unit is used for outputting a load maintaining signal to the driving unit according to signals output by the first microcontroller and the second microcontroller when at least one of the first microcontroller and the second microcontroller has a reset fault; and the driving unit is used for controlling the load circuit to be in a load holding state under the control of the load holding signal output by the logic unit, so as to solve the problems that the relay is disconnected unexpectedly, the vehicle loses power suddenly and traffic accidents are caused under the condition that the control signal of the relay is lost.

Description

technical field [0001] Embodiments of the present invention relate to the field of new energy vehicles, in particular to a load holding circuit applied to a battery management system. Background technique [0002] At present, new energy vehicles have been included in the major strategy of energy conservation and emission reduction. With the inclination of various preferential policies for new energy vehicles, more and more companies have joined the field of new energy vehicles. However, the field of new energy vehicles still faces many challenges, such as lack of competitiveness in core technologies, incomplete basic supporting equipment, inconsistent technical standards, and low barriers to entry for production. Electric vehicles are an important means of transportation for people to travel, and the safety issue is the most concerned and valued issue by consumers and car companies. Among them, the power safety of electric vehicles is an urgent problem to be solved by vario...

Claims

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Application Information

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IPC IPC(8): B60L3/00B60L3/04B60L58/10
CPCB60L3/0046B60L3/04Y02T10/70
Inventor 傅焱辉蒋欣欣王兴昌刘昌鑑
Owner 컨템포러리엠퍼렉스테크놀로지씨오리미티드
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