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WO2024138674A1 - Procédé et appareil de surveillance de batterie - Google Patents

Procédé et appareil de surveillance de batterie Download PDF

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Publication number
WO2024138674A1
WO2024138674A1 PCT/CN2022/144114 CN2022144114W WO2024138674A1 WO 2024138674 A1 WO2024138674 A1 WO 2024138674A1 CN 2022144114 W CN2022144114 W CN 2022144114W WO 2024138674 A1 WO2024138674 A1 WO 2024138674A1
Authority
WO
WIPO (PCT)
Prior art keywords
control device
battery
wireless communication
slave
attribute information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/144114
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English (en)
Chinese (zh)
Inventor
徐平红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN202280102895.2A priority Critical patent/CN120500767A/zh
Priority to PCT/CN2022/144114 priority patent/WO2024138674A1/fr
Publication of WO2024138674A1 publication Critical patent/WO2024138674A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • H01M10/54—Reclaiming serviceable parts of waste accumulators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Definitions

  • the present application relates to the field of battery technology, and in particular to a battery monitoring method and device.
  • the present application provides a battery monitoring method and device for improving the efficiency of status detection of unassembled batteries.
  • a first slave control device is configured for the first battery.
  • the first slave control device can collect first battery data when the first battery is not installed in the powered device and send it to the master control device through the first wireless communication.
  • the master control device determines the status of the first battery from the first battery data, and there is no need to check the batteries one by one, thereby improving the efficiency of status detection of unassembled batteries.
  • the master control device is further used to obtain attribute information of the first battery through the first wireless communication, determine a control strategy of the first battery according to the attribute information, and send the control strategy to the first slave control device; the first slave control device is also used to collect first battery data according to the control strategy.
  • the master control device can obtain the attribute information of the first battery from the first slave control device through the first wireless communication, and can generate a control strategy corresponding to the first battery according to the attribute information, that is, for any attribute information, there is a control strategy corresponding to the attribute information, and the master control device can send the control strategy to the first slave control device through the first wireless communication, and the first slave control device can adjust its own acquisition strategy according to the control strategy.
  • the attribute information includes at least one of model, type, manufacturer, production date, lifespan, capacity, internal resistance, and identification.
  • the attribute information may be pre-stored in the first slave device, and the first slave device may directly obtain it from the local data and send it to the master device.
  • the attribute information may also be provided manually to the first slave device, and then sent by the first slave device to the master device through the first wireless communication, that is, the first slave device is configured with an input interface, and the attribute information may be manually input from the input interface.
  • the master device may only obtain the identification information of the first battery through the first wireless communication, and the cloud server may provide the attribute information corresponding to the identification information. The flexibility of the solution is improved through multiple provision methods.
  • the master control device is further used to obtain identification information of the first battery through the first wireless communication, obtain a control strategy corresponding to the identification information from the cloud server, and send the control strategy to the first slave control device; the first slave control device is also used to collect first battery data according to the control strategy.
  • the control strategy sent by the master control device to the first slave control device can also be provided by the cloud server, that is, after the master control device obtains the identifier of the first battery through the first wireless communication, the identifier can be sent from the cloud server, and the cloud server can determine the control strategy corresponding to the first battery according to the identifier, and then send the control strategy to the master control device.
  • the cloud server has higher computing power, and can divide more control strategies according to more types of attribute information, thereby improving the monitoring effect of the battery.
  • the master control device can further adjust the control strategy for the slave control device according to the status, and increase the collection frequency or type when it may be abnormal or has been abnormal, so as to improve the battery monitoring accuracy.
  • the main control device is further used to send the first battery data to the cloud server, and obtain the adjusted control strategy from the cloud server.
  • control strategy includes one or more of sampling frequency, sampling quantity, and sampling type.
  • the main control device when the main control device finds that the battery status is abnormal, it can promptly remind the staff to check, thereby improving the safety of battery storage.
  • the master control device is further configured to update the attribute information stored in the first slave control device.
  • the attribute information of batteries in the same batch is reset to facilitate management.
  • the system further includes a second slave control device, which is used to monitor second battery data of a second battery and send the second battery data to the master control device via a second wireless communication, wherein the second battery is not mounted on the powered device, the second slave control device is detachably connected to the second battery, and the second wireless communication is a wireless communication link between the second slave control device and the master control device; the second slave control device is also used to send the first battery data to the master control device via the second wireless communication when the first wireless communication is unavailable.
  • a second slave control device which is used to monitor second battery data of a second battery and send the second battery data to the master control device via a second wireless communication, wherein the second battery is not mounted on the powered device, the second slave control device is detachably connected to the second battery, and the second wireless communication is a wireless communication link between the second slave control device and the master control device; the second slave control device is also used to send the first battery data to the master control device via the second wireless communication when the first wireless communication is unavailable.
  • the first slave device when the first wireless communication is unavailable, the first slave device can first send the first battery data to the second slave device, and then the second slave device sends the first battery data to the master device through the second wireless communication.
  • the first slave device By increasing the interaction between slave devices, possible problems with wireless communication can be avoided.
  • a second aspect of the present application provides a battery monitoring method, which includes: a first slave control device collects first battery data when the first battery is not installed on a powered device, wherein the first slave control device is detachably connected to the first battery; the first slave control device sends the first battery data to a master control device via a first wireless communication, and the first wireless communication is a wireless communication link between the first slave control device and the master control device.
  • control strategy includes one or more of sampling frequency, sampling quantity, and sampling type.
  • the method further includes: the first slave control device receives update information from the master control device; and the first slave control device updates the internally stored attribute information according to the update information.
  • the method further includes: when the first wireless communication is unavailable, the first slave device sends the first battery data to the master device via the second wireless communication, wherein the second wireless communication is a wireless communication link between the second slave device and the master device, the second slave device is used to monitor the second battery data of the second battery, and send the second battery data to the master device via the second wireless communication, and the second battery is not installed on the powered device.
  • a third aspect of the present application provides a battery monitoring method, which includes: a master control device obtains first battery data from a first slave control device through a first wireless communication, wherein the first wireless communication is a wireless communication link between the first slave control device and the master control device, and the first battery data is monitoring data when the first battery is not installed on the powered device; the master control device determines the status of the first battery based on the first battery data.
  • the method before the master control device receives the first battery data from the first slave control device, the method further includes: the master control device obtains attribute information of the first battery through the first wireless communication; the master control device determines a control strategy of the first battery based on the attribute information; and the master control device sends the control strategy to the first slave control device.
  • the attribute information includes at least one of model, type, manufacturer, production date, lifespan, capacity, internal resistance, and identification.
  • the above step of the master control device acquiring the attribute information of the first battery from the first slave control device through the first wireless communication includes: the master control device receives the attribute information from the first slave control device through the first wireless communication; or, the master control device receives the identification information of the first battery from the first slave control device through the first wireless communication; and the master control device acquires the attribute information from the cloud server according to the identification information.
  • the method before the master control device obtains the first battery data from the first slave control device, the method also includes: the master control device receives identification information of the first battery from the first slave control device through the first wireless communication; the master control device obtains the control strategy corresponding to the identification information from the cloud server; and the master control device sends the control strategy to the first slave control device.
  • the method further includes: the main control device adjusts the control strategy according to the state.
  • the method further includes: the master control device updates the attribute information stored in the first slave control device.
  • the fourth aspect of the present application provides a battery monitoring method, which includes: a cloud server receives identification information of a first battery from a main control device; the cloud server determines a control strategy for the first battery based on the identification information, and the control strategy is used to collect data of the first battery when the first battery is not installed on a powered device; and the cloud server sends the control strategy to the main control device.
  • the method further includes: the cloud server determining the attribute information of the first battery based on the identification information; and the cloud server sending the attribute information to the main control device.
  • the sixth aspect of the present application provides a battery monitoring device that can implement the method in the third aspect or any possible implementation of the third aspect.
  • the device includes corresponding units or modules for executing the above method.
  • the units or modules included in the device can be implemented by software and/or hardware.
  • the device can be, for example, a network device, or a chip, a chip system, or a processor that supports the network device to implement the above method, or a logic module or software that can implement all or part of the functions of the network device.
  • a battery monitoring device comprising: a processor, the processor is coupled to a memory, the memory is used to store instructions, and when the instructions are executed by the processor, the battery monitoring device implements the method in the third aspect or any possible implementation of the third aspect.
  • the battery monitoring device can be, for example, a network device, or a chip or chip system that supports the network device to implement the above method.
  • FIG9 is a schematic diagram of the structure of another battery monitoring device provided in an embodiment of the present application.
  • FIG10 is a schematic diagram of the structure of another battery monitoring device provided in an embodiment of the present application.
  • FIG. 1 is an architecture diagram of an unassembled battery monitoring system provided by an embodiment of the present application.
  • the wireless communication methods include one or more of Bluetooth communication, ZigBee, wireless fidelity, infrared, radio frequency, near-field communication, ultra-wideband technology, wireless local area network, 60GHz first wireless communication technology, visible light communication technology, and ad hoc network technology.
  • the master device 11 obtains the identification from the first slave device 21, and sends the identification to the cloud server 41, and the cloud server 41 feedbacks the attribute information corresponding to the identification to the master device 11.
  • the attribute information may be one or more of battery code, product name, battery model, rated capacity, rated energy, charging limit voltage, nominal voltage, battery positive and negative polarity, battery material system (or code), manufacturer (or manufacturer code), production date or batch number, internal resistance, battery state of charge (SOC), battery aging degree (SOH), battery safety operating parameters, etc.
  • the identification may be sent to the master device 11 after the first battery is identified by other identification devices.
  • the battery is not equipped with a slave device at the beginning.
  • the master device 11 can identify the battery to be checked through the identification device, obtain the identification of the first battery 22, and obtain the attribute information of the first battery 22 from the cloud server.
  • the first slave device 21 is configured for the first battery 22, so that the first slave device 21 can collect the first battery data according to the control strategy.
  • the way in which the first battery 22 is configured with the first slave device 21 can be installed by the machine controlled by the master device 11, or it can be installed manually, which is not limited here.
  • the cloud server determines that the state of the first battery 22 is abnormal, it can also send an early warning signal to the main control device 11, indicating that the first battery 22 is abnormal, and the main control device 11 can issue an alarm in time, and can indicate that the first battery 22 is abnormal by sound or interface prompt.
  • the judgment condition of battery abnormality can be: when the battery data or the secondary processed data obtained by processing, analysis and calculation exceeds the dynamic threshold, or its change trend is greater than, less than, or different from the change trend obtained by calculation and analysis.
  • the master device 11 may also update the attribute information stored in the slave device. For example, the master device 11 may send update information carrying new attribute information to the first slave device 21, and the first slave device 21 may replace the local attribute information with the new attribute information.
  • the master device 11 can also update the version of the slave device, such as sending an update control instruction and updated battery management control software, algorithm and parameters to the first slave device 21.
  • the first slave device 21 uses the updated battery management control software, algorithm and parameters for update.
  • the identification of the first battery 22 may be the one that comes with the battery when it leaves the factory, or may be obtained by re-encoding the master device 11 for the convenience of management.
  • the master device 11 may re-encode multiple slave devices connected by wireless communication, and then send the new identifications to the corresponding slave devices respectively.
  • the first slave device 21 may use the new identification as the identification of the first battery 22.
  • step 701 determine whether the appearance of the battery to be monitored is normal, and the judgment method may include: no damage, dents, leakage, inflation, etc.
  • step 703 the master control device determines whether the wireless connection is completed, that is, whether the identification can be obtained through the wireless communication of the slave control device, if so, execute step 704, otherwise execute step 705;
  • step 704 the master control device determines whether the attribute information can be obtained from the cloud server through the identification, and if so, execute step Step 708, otherwise, step 707 is executed;
  • Step 705 the main control device determines whether the battery to be monitored has a complete barcode through image recognition, if yes, step 704 is executed, otherwise, step 706 is executed;
  • Step 706 manually identify the identification of the battery to be monitored, if it cannot be identified, step 702 is executed, if it can be identified, step 707 is executed;
  • Step 707 offline test the attribute information of the battery to be monitored;
  • Step 708 the main control device determines whether the battery to be monitored is normal, for example, whether the SOH of the battery to be monitored is higher than the prese
  • the battery monitoring method is described above, and the various devices for executing the method are described below.
  • the processing unit 801 is used to collect first battery data when the first battery is not installed in the powered device, wherein the first slave control device is detachably connected to the first battery;
  • the processing unit 801 is specifically used for:
  • the first battery data is collected according to the control strategy.
  • the attribute information is sent to the main control device through the first wireless communication.
  • control strategy includes one or more of sampling frequency, sampling quantity, and sampling type.
  • the transceiver unit 802 is further configured to:
  • the stored attribute information is updated according to the update information.
  • FIG. 9 is a schematic diagram of the structure of another battery monitoring device provided in an embodiment of the present application.
  • the device 90 includes:
  • the transceiver unit 901 is further configured to:
  • the control strategy is sent to the first slave control device.
  • the transceiver unit 901 is further configured to:
  • processing unit 902 is further configured to:
  • processing unit 902 is further configured to:
  • the attribute information stored in the first slave control device is updated.
  • a processing unit 1002 is used to determine a control strategy of the first battery according to the identification information, wherein the control strategy is used to collect first battery data when the first battery is not installed on a powered device;
  • the transceiver unit 1001 is further used to send the control strategy to the main control device.
  • the transceiver unit 1001 is further used to send attribute information to the master control device.
  • the transceiver unit 1001 is further configured to:
  • the processing unit 1002 is further configured to adjust the control strategy according to the first battery data.
  • the processor 1101 can be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processor 1101 can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and the like.
  • the bus 1104 can be a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, etc.
  • PCI peripheral component interconnect standard
  • EISA Extended Industry Standard Architecture
  • the bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in Figure 11, but it does not mean that there is only one bus or one
  • the transceiver unit 901 in the device 90 is equivalent to the communication interface 1102 in the battery monitoring device 110
  • the processing unit 902 in the device 90 is equivalent to the processor 1101 in the battery monitoring device 110 .
  • the battery monitoring device 110 of this embodiment may correspond to the first slave control device, the master control device or the cloud server in the method embodiment of FIG. 3 above.
  • the communication interface 1102 in the battery monitoring device 110 may implement the functions and/or various steps implemented by the first slave control device, the master control device or the cloud server in the method embodiment of FIG. 3 above, which will not be described in detail for the sake of brevity.
  • each step of the above method or each unit above can be implemented by an integrated logic circuit of hardware in the processor element or in the form of software calling through a processing element.
  • the unit in any of the above devices may be one or more integrated circuits configured to implement the above method, such as one or more application specific integrated circuits (ASIC), or one or more digital singnal processors (DSP), or one or more field programmable gate arrays (FPGA), or a combination of at least two of these integrated circuit forms.
  • ASIC application specific integrated circuits
  • DSP digital singnal processors
  • FPGA field programmable gate arrays
  • the unit in the device can be implemented in the form of a processing element scheduler
  • the processing element can be a general-purpose processor, such as a CPU or other processor that can call a program.
  • these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • a computer-readable storage medium in which computer execution instructions are stored.
  • the processor of the device executes the computer execution instructions
  • the device executes the method executed by the first slave control device, the master control device or the cloud server in the above method embodiment.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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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)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

L'invention concerne un procédé et un appareil de surveillance de batterie. Le procédé comprend les étapes suivantes : un premier dispositif de commande esclave peut acquérir des premières données de batterie d'une première batterie lorsque la première batterie n'est pas montée sur un dispositif alimenté ; les premières données de batterie sont envoyées à un dispositif de commande maître au moyen d'une première communication sans fil ; et le dispositif de commande maître détermine l'état de la première batterie en fonction des premières données de batterie. Ainsi, il n'est pas nécessaire de vérifier des batteries une par une, et l'efficacité d'inspection de l'état de batteries non montées est améliorée.
PCT/CN2022/144114 2022-12-30 2022-12-30 Procédé et appareil de surveillance de batterie Ceased WO2024138674A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202280102895.2A CN120500767A (zh) 2022-12-30 2022-12-30 一种电池监测方法以及装置
PCT/CN2022/144114 WO2024138674A1 (fr) 2022-12-30 2022-12-30 Procédé et appareil de surveillance de batterie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/144114 WO2024138674A1 (fr) 2022-12-30 2022-12-30 Procédé et appareil de surveillance de batterie

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WO2024138674A1 true WO2024138674A1 (fr) 2024-07-04

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060171329A1 (en) * 2005-01-28 2006-08-03 Jeffrey Ying Control network with data and power distribution
CN107946673A (zh) * 2017-12-01 2018-04-20 深圳名飞远科技有限公司 一种高鲁棒性的车用动力电池管理系统及其管理方法
CN110224192A (zh) * 2019-05-30 2019-09-10 安徽巡鹰新能源科技有限公司 一种梯次利用动力电池寿命预测方法
CN110546849A (zh) * 2017-11-24 2019-12-06 株式会社Lg化学 无线电池管理系统和使用其保护电池组的方法
CN113659681A (zh) * 2021-08-19 2021-11-16 北京理工大学深圳汽车研究院(电动车辆国家工程实验室深圳研究院) 一种从控模块、电池管理系统、方法及存储介质

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060171329A1 (en) * 2005-01-28 2006-08-03 Jeffrey Ying Control network with data and power distribution
CN110546849A (zh) * 2017-11-24 2019-12-06 株式会社Lg化学 无线电池管理系统和使用其保护电池组的方法
CN107946673A (zh) * 2017-12-01 2018-04-20 深圳名飞远科技有限公司 一种高鲁棒性的车用动力电池管理系统及其管理方法
CN110224192A (zh) * 2019-05-30 2019-09-10 安徽巡鹰新能源科技有限公司 一种梯次利用动力电池寿命预测方法
CN113659681A (zh) * 2021-08-19 2021-11-16 北京理工大学深圳汽车研究院(电动车辆国家工程实验室深圳研究院) 一种从控模块、电池管理系统、方法及存储介质

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