Current detection system, method and current detection device

A current detection device and current detection technology, applied in the field of current detection devices and current detection systems, can solve the problems of low reliability of current detection, inability to judge the cause of failure, and inability to collect the current of power battery packs, etc., so as to achieve the effect of improving reliability

Active Publication Date: 2018-04-20
CONTEMPORARY AMPEREX RUNZHI SOFTWARE TECH LTD NINGDE CITY
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Problems solved by technology

[0006] Usually, a shunt-type current sensor can be used to collect the current of the power battery pack, but when the shunt-type current sensor fails, it will not be able to collect the current of the power battery pack, nor can it judge the cause of the fault, resulting in low reliability of current detection. Low

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  • Current detection system, method and current detection device
  • Current detection system, method and current detection device
  • Current detection system, method and current detection device

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[0033] 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 used 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.

[0034] 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 do not...

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Abstract

The invention discloses a current detection system, a current detection method and a current detection device. The current detection system comprises a management module and a current detection deviceconnected with the management module. The current detection device comprises a shunt type current measurement module, an open-loop Hall current measurement module and an isolated power supply module,wherein the shunt type current measurement module is used for measuring a current by means of a current sensing device provided with a shunt resistor; the open-loop Hall current measurement module isused for measuring a current by means of a current sensing device provided with a magnetic field sensitive element; and the isolated power supply module is used for providing operating voltages of other modules. The management module is used for receiving a current value measured by means of the current sensing device provided with the shunt resistor and a current value measured by means of the current sensing device provided with the magnetic field sensitive element, and is used for performing fault detection on the current detection device. According to the current detection system, the current detection method and the current detection device provided by the invention, the current detection reliability can be improved.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a current detection system, method and current detection device. Background technique [0002] In recent years, electric vehicles have become a trend of industrial development because they can reduce greenhouse gas emissions, promote sustainable energy development, and improve air quality, and have very good development prospects. The power battery pack is responsible for storing and providing electric energy, which is the core component of electric vehicles. [0003] The battery management system (Battery Management System, referred to as BMS) is an important link connecting the power battery pack and the electric vehicle, and plays a very important role in prolonging the service life of the power battery pack and maintaining the performance of the power battery pack. [0004] During the charging and discharging process of the power battery pack, the State Of Charge (SOC) of ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36G01R35/00G01R19/00
CPCG01R31/387G01R19/00G01R31/3648G01R35/00G01R1/203G01R15/202G01R15/146G01R19/0092
Inventor 但志敏张伟侯贻真许佳
Owner CONTEMPORARY AMPEREX RUNZHI SOFTWARE TECH LTD NINGDE CITY
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