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Current detection device and battery management system

A current detection device, battery management system technology, applied in the direction of measuring devices, circuit devices, battery circuit devices, etc., can solve the problems of high cost and complicated circuit structure, and achieve the effect of low cost, simple circuit structure, and shortened wire harness length

Active Publication Date: 2021-01-22
CONTEMPORARY AMPEREX RUNZHI SOFTWARE TECH LTD NINGDE CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current battery management system generally designs a special main positive circuit and a main negative circuit externally, and cooperates with a current sensor or a current detection unit to detect the current of the vehicle power battery pack. The circuit structure is complex and the cost is high.

Method used

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  • Current detection device and battery management system
  • Current detection device and battery management system
  • Current detection device and battery management system

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Embodiment Construction

[0020] The characteristics and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention more clear, 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 configured to explain the present invention, not to limit the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention.

[0021] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and ...

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Abstract

The invention discloses a current detection device and a battery management system. The current detection device includes: the positive pole of the power battery pack to be tested is connected to the first end of the main positive loop, the negative pole of the power battery pack to be tested is connected to the first end of the main negative loop, and the current sensor is connected in series to the power battery pack to be tested Between the negative electrode of the negative pole and the first end of the main negative circuit; the current sensor is used to obtain the voltage signal of the power battery pack to be tested and output the voltage signal; the micro control unit is used to collect the voltage signal output by the signal terminal of the current sensor, and Perform current conversion processing on the voltage signal, send the detected current value of the power battery pack to be tested obtained through the current conversion processing, and receive control instructions, which are used to control the connection and disconnection of the main positive loop and the main negative loop. According to the current detection device provided by the embodiment of the present invention, the main positive loop and the main negative loop can be integrated into the current detection device, and the circuit structure is simple and the integration degree is high.

Description

technical field [0001] The invention relates to the field of power batteries, in particular to a current detection device and a battery management system. Background technique [0002] The replacement of fuel vehicles by electric vehicles has become the development trend of the automobile industry, and the safety of vehicle battery packs has become one of the problems hindering the promotion of electric vehicles. [0003] Nowadays, in order to reduce the risk of on-board battery pack energy supply and meet the functional requirements for electric vehicles, it is necessary to detect the current of the on-board battery pack and control the main positive and negative loops of the power battery. [0004] The current battery management system generally designs a special main positive circuit and a main negative circuit externally, and cooperates with a current sensor or a current detection unit to detect the current of the vehicle power battery pack. The circuit structure is comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/25G01R31/396G01R31/385G01R31/364G01R31/00B60L58/12
CPCG01R31/396B60L58/10G01R19/2509G01R31/007G01R31/3648B60L2240/549G01R31/382Y02T10/70H02J7/00714G01R19/10G01R19/16542
Inventor 张伟但志敏罗杰超侯贻真
Owner CONTEMPORARY AMPEREX RUNZHI SOFTWARE TECH LTD NINGDE CITY
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