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Battery management system and method for numbering battery detection units

A battery management system and battery detection technology, applied in the direction of electrical program control, sequence/logic controller program control, etc., can solve the problems of high production management costs and achieve the effect of low production management costs

Active Publication Date: 2019-09-27
HUAWEI TECH CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] For the above numbering method, since the configuration of the resistance network of each BMU is different, it is necessary to manage the BOM (Bill of Material, Bill of Materials) and corresponding processing technology of N sets of BMUs to produce a battery pack containing N BMUs, so the The production management cost of multiple numbering methods is too high

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  • Battery management system and method for numbering battery detection units
  • Battery management system and method for numbering battery detection units
  • Battery management system and method for numbering battery detection units

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Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0044] figure 2 It is a schematic structural diagram of a battery management system provided by an embodiment of the present invention. see figure 2 , the system includes: a signal generating unit, a BCU and at least two BMUs.

[0045] Wherein, the signal generating unit is connected to any one of the at least two BMUs, and the at least two BMUs are connected in sequence. Among them, the meanings of sequential connection are as follows figure 2 As shown, the signal generation unit is connected to the BMU labeled BMU1, and BMU1 is connected to BMU2, BMU2 is connected to BMU3, and so on, BMUn-1 is connected to BMUn. Wherein, n is the total number of BMUs in the battery management system, usually n is a positive integer greater tha...

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Abstract

A battery management system and method for numbering a battery monitor unit. The system comprises: a signal generating unit, a BCU and at least two BMUs; the signal generating unit is connected with any one of the at least two BMUs; the at least two BMUs are connected in series, a BMU from among the at least two BMUs is used to receive a trigger signal from the signal generating unit or a first BMU connected thereto, acquire a digital measurement signal value according to the trigger signal, and send the digital measurement signal value to the BCU; the BCU is connected to each of the BMUs, and is used to number each of the BMUs according to the received digital signal measurement value, and to issue a corresponding number to each of the BMUs. Each BMU outputs a digital measurement signal value to the BCU, and the BCU can automatically number the BMUs according to the received digital signal measurement values having different sizes; therefore, all BMUs are the same in the production process, and no special process is needed to distinguish between different BMUs, such that the production management cost is low.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a battery management system and a method for numbering battery detection units. Background technique [0002] As the market's requirements for the cruising range of electric vehicles continue to increase, the energy stored in the battery pack of the electric vehicle is gradually increasing, which leads to an increasing number of rechargeable battery cells in the battery pack. Based on safety considerations when recycling battery packs, a BMS (Battery Management System, battery management system) is usually configured. Wherein, the BMS includes a BCU (Battery Control Unit, battery control unit) as a control center and at least one BMU (Battery Monitor Unit, battery detection unit). The BMU is used to monitor the voltage, temperature and other information of the battery unit, and report the above information to the BCU through the communication bus, and then the BCU accurately mon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/04
Inventor 赵玮炜李培才彭益攀
Owner HUAWEI TECH CO LTD
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