CN111354986A - Method and device for controlling automatic distribution of identification codes of battery module - Google Patents

Method and device for controlling automatic distribution of identification codes of battery module Download PDF

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Publication number
CN111354986A
CN111354986A CN201811574594.1A CN201811574594A CN111354986A CN 111354986 A CN111354986 A CN 111354986A CN 201811574594 A CN201811574594 A CN 201811574594A CN 111354986 A CN111354986 A CN 111354986A
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CN
China
Prior art keywords
battery
battery modules
battery module
terminal
identification code
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Pending
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CN201811574594.1A
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Chinese (zh)
Inventor
林永泓
詹佳翰
张峰铭
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Taipu Power New Energy Changshu Co ltd
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Taipu Power New Energy Changshu Co ltd
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Priority to CN201811574594.1A priority Critical patent/CN111354986A/en
Publication of CN111354986A publication Critical patent/CN111354986A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4221—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells with battery type recognition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention discloses a method and a device for controlling automatic distribution identification codes of battery modules in a battery pack, wherein the battery pack comprises a plurality of battery modules, and each of the battery modules can comprise a communication terminal, a receiving terminal and a transmitting terminal. The method comprises the following steps: the main device transmits a first trigger signal to a receiving terminal of a first battery module at a first time point to trigger the second battery module to perform identification code distribution according to an identification code transmitted by the main device at the first time point; and the transmitting terminal of the first battery module transmits a second trigger signal to the receiving terminal of a second battery module at a second time point to trigger the second battery module to perform identification code distribution according to the identification code transmitted by the main device at the second time point. The invention can improve the problems of the prior art by transmitting the control signal in a serial mode and carrying out communication in a parallel mode to distribute the identification codes of the battery modules.

Description

Method and device for controlling automatic distribution of identification codes of battery module
Technical Field
The present invention relates to battery management, and more particularly, to a method and apparatus for controlling automatic identification code allocation of battery modules in a battery pack.
Background
A battery pack may implement a battery pack (e.g., a high power battery pack) that can provide high energy by connecting battery modules therein in series and parallel. In order to meet different product requirements (e.g., different energy levels), the battery modules must be standardized, wherein the standardized battery modules are separated or identified by their respective identification codes, for example, if a battery pack includes only a small number (e.g., less than four) of battery modules, their respective identification codes can be implemented by simple hardware; if the number of battery modules in the battery pack reaches a specific number (for example, more than nine battery modules), the design of the identification code, the maintenance of the product, and the tracking operation become very complicated, and the assembly error rate is high. Therefore, a novel method and apparatus are needed to solve the above problems.
Disclosure of Invention
An objective of the present invention is to disclose a method and an apparatus for controlling automatic identification code allocation of battery modules in a battery pack, so as to solve the problems of the prior art.
At least one embodiment of the present invention discloses a method for controlling automatic identification code allocation of battery modules in a battery pack, wherein the battery pack includes the plurality of battery modules, and each of the plurality of battery modules may include a communication terminal, a receiving terminal, and a transmitting terminal. The method comprises the following steps: transmitting identification codes of the battery modules to communication terminals of the battery modules by using a host device (host device) coupled to the battery modules; transmitting a first trigger signal to a receiving terminal of a first battery module of the plurality of battery modules at a first time point by using the main device to trigger the first battery module to perform identification code distribution of the first battery module according to the identification code transmitted by the main device at the first time point; and transmitting a second trigger signal to a receiving terminal of a second battery module of the plurality of battery modules at a second time point by using the transmitting terminal of the first battery module to trigger the second battery module to distribute the identification code of the second battery module according to the identification code transmitted by the main device at the second time point.
At least one embodiment of the present invention discloses a host device (host device) for controlling automatic distribution of identification codes of battery modules in a battery pack, wherein the battery pack includes the plurality of battery modules, and each of the plurality of battery modules includes a communication terminal, a receiving terminal, and a transmitting terminal. The main device may include a control circuit, wherein the control circuit is coupled to the communication terminals of the plurality of battery modules, and the control circuit may be used to control the operation of the main device. For example, the host device may transmit the identification codes of the battery modules to the communication terminals of the battery modules, and transmit a first trigger signal to the receiving terminal of a first battery module of the battery modules at a first time point to trigger the first battery module to perform identification code allocation of the first battery module according to the identification code transmitted by the host device at the first time point. In addition, the first battery module transmits a second trigger signal to a receiving terminal of a second battery module of the plurality of battery modules at a second time point through the transmitting terminal of the first battery module to trigger the second battery module to perform identification code distribution of the second battery module according to the identification code transmitted by the main device at the second time point.
The method and the device disclosed by the invention can transmit the control signal in a serial connection mode and carry out communication in a parallel connection mode so as to distribute the identification codes of the battery modules. In addition, the implementation according to the embodiments of the present disclosure does not significantly increase the additional cost, and therefore, the present disclosure can solve the problems of the prior art without side effects or with less side effects.
Drawings
Fig. 1 is a schematic diagram of a host device and a battery pack according to an embodiment of the invention.
Fig. 2 is a method for performing automatic identification code assignment control of battery modules in a battery pack according to an embodiment of the present invention.
Fig. 3 is a diagram illustrating the host device shown in fig. 1 performing automatic identification code allocation control of battery modules in a battery pack in a first phase of a plurality of phases according to an embodiment of the invention.
Fig. 4 is a schematic diagram illustrating the master device performing automatic identification code allocation control of the battery modules in the battery pack in a second stage of the plurality of stages.
Fig. 5 is a schematic diagram illustrating the main device performing automatic identification code allocation control of the battery module in the battery pack at a third stage of the plurality of stages.
Fig. 6 is a schematic diagram illustrating the host device performing automatic identification code allocation control of the battery modules in the battery pack at a fourth stage of the plurality of stages.
Fig. 7 is a flow chart of a process involved in an embodiment of the method of fig. 2.
Wherein the reference numerals are as follows:
50 main device
52 control circuit
100 high power battery pack
100_1、100_2、100_3、100_4、
700_ n battery module
120_1, 120_2, 120_3, 120_4 communication terminal
141_1, 141_2, 141_3, 141_4 receiving terminal
142_1, 142_2, 142_3, 142_4 transmission terminals
200 method
210. 220, 230 steps
ID1, ID2, ID3, ID4 identification code
710、720、730、740、750、
760. 770, 780, 790 and 795
Detailed Description
Fig. 1 is a schematic diagram of a host device 50 and a battery pack, such as a high power battery pack 100, according to an embodiment of the invention. The high power battery pack may include a plurality of battery modules such as battery modules {100_1,100_2,100_3,100_4}, wherein the number of the plurality of battery modules is not a limitation of the present invention. Each of the plurality of battery modules may include a communication terminal, a receiving terminal, and a transmitting terminal, such as: the battery module 100_1 may include a communication terminal 120_1, a receiving terminal 141_1 and a transmitting terminal 142_1, the battery module 100_2 may include a communication terminal 120_2, a receiving terminal 141_2 and a transmitting terminal 142_2, the battery module 100_3 may include a communication terminal 120_3, a receiving terminal 141_3 and a transmitting terminal 142_3, the battery module 100_4 may include a communication terminal 120_4, a receiving terminal 141_4 and a transmitting terminal 142_4, and so on. In the present embodiment, the receiving terminal and the transmitting terminal of each of the plurality of battery modules use an isolation component for receiving the trigger signal and transmitting the trigger signal, respectively, for example, the transmitting terminal 142_1 and the receiving terminal 141_2 are coupled to each other through the isolation component (for example, the ground terminal of the battery module 100_1 and the ground terminal of the battery module 100_2 are not coupled to each other); for another example, the transmitting terminal 142_2 and the receiving terminal 141_3 are coupled to each other through an isolation component (e.g., the ground terminal of the battery module 100_2 and the ground terminal of the battery module 100_3 are not coupled to each other); as another example, the transmitting terminal 142_3 and the receiving terminal 141_4 are coupled to each other through an isolation component (e.g., the ground terminal of the battery module 100_3 and the ground terminal of the battery module 100_4 are not coupled to each other); but the invention is not limited thereto. In addition, the host device 50 may include a control circuit 52 for controlling the operation of the host device 50, wherein the control circuit 52 may be coupled to the communication terminals 120_1, 120_2, 120_3, and 120_4, and further coupled to the receiving terminal 141_1 of the battery module 100_ 1. As shown in fig. 1, the main device 50 may transmit the identification codes of the battery modules to communication terminals of the battery modules through a Controller Area Network (CAN) bus, and the battery modules may be configured into a daisy chain (daisy chain) arrangement through a receiving terminal and a transmitting terminal of each of the battery modules to transmit a trigger signal so that the corresponding battery module CAN receive the corresponding identification code.
Referring to fig. 2 in conjunction with fig. 1, fig. 2 is a block diagram illustrating a method 200 for controlling automatic identification code allocation of battery modules in a high power battery pack 100 according to an embodiment of the present invention. For simplicity, the following steps are described with the automatic id control of the battery modules 100_1 and 100_2 as an example. Additionally, one or more steps of the method 200 may be added, modified or deleted without departing from the scope of the present invention, which is not limited in this respect.
In step 210, the main device 50 may reset all the battery modules in the high power battery pack 100.
In step 220, the host device 50 may transmit a first trigger signal to the receiving terminal 141_1 of the battery module 100_1 at a first time point to trigger the battery module 100_1 to perform identifier assignment of the battery module 100_1 according to the identifier transmitted by the host device 50 at the first time point.
In step 230, the battery module 100_1 may transmit a second trigger signal to the receiving terminal 141_2 of the battery module 100_2 through the transmitting terminal 142_1 of the battery module 100_1 at a second time point, so as to trigger the battery module 100_2 to perform identifier allocation of the battery module 100_2 according to the identifier transmitted by the host device 50 at the second time point.
For easy understanding, please refer to fig. 3 to fig. 6 sequentially, wherein fig. 3 to fig. 6 are schematic diagrams illustrating the host device 50 shown in fig. 1 performing automatic identification code allocation control of battery modules {100_1,100_2,100_3,100_4} in the high power battery pack 100 according to an embodiment of the invention.
As shown in fig. 3, the master device 50 can transmit a logic high (H) signal to the receiving terminal 141_1, and the receiving terminals 141_2, 141_3 and 141_4 all receive a logic low (L) signal, so that the identification code ID1 transmitted by the master device 50 can be received by the battery module 100_1 through the communication terminal 120_ 1.
As shown in fig. 4, the battery module 100_1 can transmit a logic high signal to the receiving terminal 141_2 through the transmitting terminal 142_1, and the receiving terminals 141_1, 141_3, and 141_4 all receive a logic low signal, so that the identification code ID2 transmitted by the host device 50 can be received only by the battery module 100_2 through the communication terminal 120_ 2.
As shown in fig. 5, the battery module 100_2 can transmit a logic high signal to the receiving terminal 141_3 through the transmitting terminal 142_2, and the receiving terminals 141_1, 141_2 and 141_4 all receive a logic low signal, so that the identification code ID3 transmitted by the host device 50 can be received only by the battery module 100_3 through the communication terminal 120_ 3.
As shown in fig. 6, the battery module 100_3 can transmit a logic high signal to the receiving terminal 141_4 through the transmitting terminal 142_3, and the receiving terminals 141_1, 141_2, and 141_3 all receive a logic low signal, so that the identification code ID4 transmitted by the host device 50 can be received only by the battery module 100_4 through the communication terminal 120_ 4.
Fig. 7 is a flow chart of a process involved in an embodiment of the method 200 shown in fig. 2. In the present embodiment, a high power battery pack 700 (which can be regarded as an example of the high power battery pack 100 shown in fig. 1) may include N battery modules 700_1 to 700_ N, and the battery module 700_ N may represent any one of the battery modules 700_1 to 700_ N, where N is a positive integer and N is a positive integer within the interval [1, N ].
Step 710: all battery modules are reset, and n is 1.
Step 720: the i/o circuit of the battery module 700_ n (e.g., the battery module 700_1) is triggered, e.g., enabled or turned on.
Step 730: checking whether response data exists, if so, indicating that the input/output circuit is enabled, at this time, triggering the battery module 700_ n to set the identification code, and the process goes to step 740; otherwise, flow proceeds to step 795.
Step 740: the identification code of the battery module 700_ n is set.
Step 750: checking whether response data exists, if so, indicating that the battery module 700_ n has finished setting, and the flow proceeds to step 760; otherwise, flow proceeds to step 795.
Step 760: the input/output circuit of the battery module 700 — n is released, for example, disabled or turned off.
Step 770: checking whether response data exists, if so, indicating that the input/output circuit of the battery module 700_ n is disabled, and the process proceeds to step 780; otherwise, flow proceeds to step 795.
Step 780: checking whether the battery module 700_ n is the last battery module, if yes, the flow proceeds to step 790; otherwise, the process proceeds to step 720 to start the next work flow of the battery module (for example, adding n to 1 (denoted as "n + +")), for example, after completing the operations of steps 720 to 780 on the battery module 700_1, the operations of steps 720 to 780 are performed on the battery module 700_2 (in this case, n is 2). The operation of the remaining battery modules may be analogized, and thus, the description thereof is omitted for the sake of brevity.
Step 790: and completing automatic identification code distribution.
Step 795: the identification code assignment is stopped to handle the abnormal situation occurring in the above step.
After reading the above embodiments, it should be appreciated that the method 200 of the present invention (such as the method 200 shown in fig. 2 and the workflow shown in fig. 7) and the apparatus (such as the host apparatus 50) for performing automatic id code assignment control of battery modules in a battery pack have many advantages over the prior art, including reduced risk of id code duplication, easy modularization, high traceability and low failure rate, for example, the host apparatus 50 can obtain data transmitted by a specific battery module through the controller lan bus. In addition, implementation according to the disclosed embodiments of the present invention does not add significant additional cost, and thus, the present invention can solve the problems of the prior art without or with less possibility of side effects.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A method of automatic assigned identification code control of battery modules in a battery pack, wherein the battery pack includes the plurality of battery modules, each of the plurality of battery modules including a communication terminal, a receiving terminal, and a transmitting terminal, the method comprising:
transmitting, by a host device coupled to the plurality of battery modules, identification codes of the plurality of battery modules to communication terminals of the plurality of battery modules;
transmitting a first trigger signal to a receiving terminal of a first battery module of the plurality of battery modules at a first time point by using the main device to trigger the first battery module to perform identification code distribution of the first battery module according to the identification code transmitted by the main device at the first time point; and
and transmitting a second trigger signal to a receiving terminal of a second battery module of the plurality of battery modules at a second time point by using the transmitting terminal of the first battery module to trigger the second battery module to distribute the identification code of the second battery module according to the identification code transmitted by the main device at the second time point.
2. The method of claim 1, wherein the master device transmits the identification codes of the battery modules to the battery modules through a controller area network bus.
3. The method of claim 1, wherein the receiving terminal and the transmitting terminal of each of the plurality of battery modules use an isolation component for receiving a trigger signal and transmitting a trigger signal, respectively.
4. The method of claim 1, wherein the plurality of battery modules are configured in a daisy-chained arrangement by the receive terminal and the transmit terminal of each of the plurality of battery modules.
5. A main device for performing automatic distribution identification code control of battery modules in a battery pack, wherein the battery pack includes the plurality of battery modules, each of the plurality of battery modules includes a communication terminal, a reception terminal, and a transmission terminal, and the main device is characterized by comprising:
a control circuit coupled to the communication terminals of the plurality of battery modules for controlling the operation of the main device, wherein:
the master device transmitting the identification codes of the plurality of battery modules to communication terminals of the plurality of battery modules;
the main device transmits a first trigger signal to a receiving terminal of a first battery module of the plurality of battery modules at a first time point to trigger the first battery module to perform identification code distribution of the first battery module according to the identification code transmitted by the main device at the first time point; and
the first battery module transmits a second trigger signal to a receiving terminal of a second battery module of the plurality of battery modules at a second time point through the transmitting terminal of the first battery module to trigger the second battery module to distribute the identification code of the second battery module according to the identification code transmitted by the main device at the second time point.
6. The battery pack host system of claim 5, wherein the host device transmits the identification codes of the battery modules to the battery modules via a controller area network bus.
7. The battery pack host system of claim 5, wherein the receive terminal and the transmit terminal of each of the plurality of battery modules utilize isolation components for receiving and transmitting the trigger signal, respectively.
8. The battery pack host system of claim 5, wherein the plurality of battery modules are configured in a daisy-chained arrangement by the receive terminal and the transmit terminal of each of the plurality of battery modules.
CN201811574594.1A 2018-12-21 2018-12-21 Method and device for controlling automatic distribution of identification codes of battery module Pending CN111354986A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102340159A (en) * 2010-07-15 2012-02-01 凹凸电子（武汉）有限公司 Battery module addresse assigning device, method and system
WO2013051157A1 (en) * 2011-10-07 2013-04-11 日立ビークルエナジー株式会社 Battery monitoring system, host controller, and battery monitoring device
CN104124729A (en) * 2013-04-24 2014-10-29 丰田自动车株式会社 Battery monitor apparatus and battery unit
CN105122581A (en) * 2013-09-09 2015-12-02 株式会社Lg化学 System and method for allocating communication identifier for multi-bms
CN105305513A (en) * 2014-06-09 2016-02-03 付细泉 Power supply system with multiple paths of outputs and building and controlling method of power supply system
CN107710006A (en) * 2015-12-17 2018-02-16 株式会社Lg化学 Battery module and cell configuration identifying system for ID distribution

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102340159A (en) * 2010-07-15 2012-02-01 凹凸电子（武汉）有限公司 Battery module addresse assigning device, method and system
WO2013051157A1 (en) * 2011-10-07 2013-04-11 日立ビークルエナジー株式会社 Battery monitoring system, host controller, and battery monitoring device
CN104124729A (en) * 2013-04-24 2014-10-29 丰田自动车株式会社 Battery monitor apparatus and battery unit
CN105122581A (en) * 2013-09-09 2015-12-02 株式会社Lg化学 System and method for allocating communication identifier for multi-bms
CN105305513A (en) * 2014-06-09 2016-02-03 付细泉 Power supply system with multiple paths of outputs and building and controlling method of power supply system
CN107710006A (en) * 2015-12-17 2018-02-16 株式会社Lg化学 Battery module and cell configuration identifying system for ID distribution

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