WO2015126225A1 - Unité de gestion de batterie et procédé de réglage d'identificateur au moyen d'une modulation de fréquence - Google Patents

Unité de gestion de batterie et procédé de réglage d'identificateur au moyen d'une modulation de fréquence Download PDF

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Publication number
WO2015126225A1
WO2015126225A1 PCT/KR2015/001767 KR2015001767W WO2015126225A1 WO 2015126225 A1 WO2015126225 A1 WO 2015126225A1 KR 2015001767 W KR2015001767 W KR 2015001767W WO 2015126225 A1 WO2015126225 A1 WO 2015126225A1
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WO
WIPO (PCT)
Prior art keywords
frequency
start signal
battery management
terminal
unit
Prior art date
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PCT/KR2015/001767
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English (en)
Korean (ko)
Inventor
박정민
허진석
Original Assignee
주식회사 엘지화학
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Filing date
Publication date
Application filed by 주식회사 엘지화학 filed Critical 주식회사 엘지화학
Priority to JP2016570752A priority Critical patent/JP6513711B2/ja
Priority to EP15752022.2A priority patent/EP3096431B1/fr
Priority to CN201580008995.9A priority patent/CN106030964B/zh
Priority to US15/117,490 priority patent/US9973011B2/en
Priority claimed from KR1020150025843A external-priority patent/KR101583374B1/ko
Publication of WO2015126225A1 publication Critical patent/WO2015126225A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/12—Recording operating variables ; Monitoring of operating variables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/20—Electric propulsion with power supplied within the vehicle using propulsion power generated by humans or animals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/12—Bikes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/549—Current
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Definitions

  • the present invention relates to a battery management apparatus and method for setting an identifier, and more particularly, to a battery management apparatus and method for setting its own status in a multi-battery management apparatus having a master-slave structure. .
  • the secondary battery which has high applicability according to the product range and has electrical characteristics such as high energy density, is not only a portable device but also an electric vehicle (EV), a hybrid vehicle (HV, hybrid vehicle), and power storage driven by an electric driving source. It is widely applied to devices (Energy Storage System).
  • the secondary battery is attracting attention as a new energy source for improving eco-friendliness and energy efficiency in that not only the primary advantage of drastically reducing the use of fossil fuels is generated but also no by-products of energy use are generated.
  • the battery pack applied to the electric vehicle or the like has a structure in which a plurality of cell assemblies including a plurality of unit cells are connected in series to obtain a high output.
  • the unit cell may be repeatedly charged and discharged by an electrochemical reaction between components, including a positive electrode and a negative electrode current collector, a separator, an active material, an electrolyte, and the like.
  • the battery pack includes power supply control for driving loads such as a motor, measurement of electrical characteristics such as current and voltage, charge / discharge control, voltage equalization control, state of charge (SOC), and the like.
  • Algorithm for estimating a is applied to further include a battery management unit (BMU) for monitoring and controlling the state of the secondary battery.
  • BMU battery management unit
  • the battery pack of the multi-module structure includes a plurality of batteries, it is limited to control the charge / discharge state of all batteries using a single BMU. Therefore, in recent years, each battery module included in the battery pack is equipped with a BMU, one of the BMUs is designated as a master BMU, and the remaining BMUs are designated as slave BMSs. Control technology is used.
  • Japanese Laid-Open Patent Publication No. 2010-141971 discloses an example of the prior art for the master-slave system.
  • the prior art discloses a technique for transmitting a start signal to a BMU designed to have a slave status from the beginning.
  • the conventional technology as described above requires the production of a BMU having a master status and a BMU having a slave status separately, and requires a double effort of developing an algorithm suitable for each status.
  • an operation such as replacement / addition of the existing battery pack is required, an identifier setting according to the status of the replaced / added BMU is complicated.
  • the present invention has been made in view of the above-described prior art, and an object thereof is to provide a battery management unit and a method for setting an identifier by a simple algorithm.
  • Battery management unit for achieving the above technical problem, the first terminal and the second terminal which can be connected to the serial communication line; A memory unit for storing the fundamental frequency of the start signal; And a controller configured to set its status as a master unit when a frequency of the start signal received through the first terminal corresponds to a fundamental frequency stored in the memory unit.
  • the control unit may set its status as a slave unit when the frequency of the start signal received through the first terminal does not correspond to the basic frequency stored in the memory unit.
  • the memory section according to the invention further stores additional frequency values.
  • the controller may set the status of the controller and output a start signal obtained by adding an additional frequency value stored in the memory unit to the frequency of the start signal received through the first terminal through the second terminal.
  • the control unit may set its own communication identifier by determining whether a frequency of the start signal received through the first terminal is a value in which some additional frequency values are added to the basic frequency.
  • the battery management unit comprises a plurality of battery management units; And a serial communication line connecting the plurality of battery management units. It may be one component of the battery management system including a.
  • the serial communication line is a daisy chain.
  • a battery management system includes a battery management system; And a plurality of secondary batteries electrically connected to control the charging and discharging by the battery management system.
  • the load may further include an external control unit connected to one end of the serial communication line included in the battery pack.
  • the external control unit may output a start signal having a fundamental frequency through the serial communication line.
  • the load may be an electric drive means or a portable device.
  • the communication identifier setting method of the battery management unit according to the present invention for achieving the above technical problem includes a first terminal and a second terminal that can be connected to the serial communication line, a memory unit storing the basic frequency of the start signal, and a control unit
  • a method of setting a communication identifier by a battery management unit comprising: (a) determining, by the controller, whether a frequency of a start signal received through the first terminal corresponds to a fundamental frequency stored in the memory unit; And (b) setting, by the controller, its status as a master unit when the frequency of the start signal received through the first terminal corresponds to a fundamental frequency.
  • the step (b) is characterized in that the control unit transfers its status to the slave unit when the frequency of the start signal received through the first terminal does not correspond to the fundamental frequency stored in the memory unit. It further includes setting.
  • the memory unit of the battery management unit may further store additional frequency values.
  • the method of setting a communication identifier according to the present invention includes (c) setting a status of the controller by the controller and adding a start signal obtained by adding an additional frequency value stored in the memory unit to a frequency of the start signal received through the first terminal. Outputting through the second terminal; may further include.
  • the controller determines whether the frequency of the start signal received through the first terminal is a value in which some additional frequency values are added to the basic frequency, and sets its own communication identifier. Setting may be further included.
  • FIG. 1 is a block diagram schematically illustrating a configuration of a battery management unit according to an embodiment of the present invention.
  • FIG. 2 is a block diagram schematically illustrating a configuration of a battery management system according to an embodiment of the present invention.
  • FIG. 1 is a block diagram schematically showing the configuration of a battery management unit 10 according to an embodiment of the present invention.
  • the battery management unit 10 includes a first terminal 11, a second terminal 12, a memory unit 14, and a controller 15.
  • the first terminal 11 and the second terminal 12 may be connected to the serial communication line 13.
  • the control unit 15 receives a signal for starting the battery management unit 10 through the first terminal 11, and the control unit 15 activates another battery management unit through the second terminal 12. Outputs a signal
  • the battery management unit 10 normally waits in a sleep state and starts starting when a signal is received from a unit having a higher status (for example, a master unit or an external control unit). At this time, a signal for starting the startup of the battery management unit 10 is a 'starting signal'.
  • the serial communication line 13 refers to a connection method in which a receiver receiving a signal becomes a transmitter and transmits the signal to another adjacent receiver connected thereto by a relay method.
  • the first terminal 11 and the second terminal 12 refer to two terminals connected to the serial communication line 13.
  • each battery management unit 10 receives a start signal through the first terminal 11, and a start signal through the second terminal 12 in another battery management unit connected through the serial communication line.
  • 'first' and 'second' are terms for distinguishing two terminals connected to the serial communication line 13 and do not mean location / function / communication order / priority.
  • the memory unit 14 stores the fundamental frequency of the start signal.
  • the controller 15 determines whether the frequency of the start signal received through the first terminal 11 corresponds to the fundamental frequency stored in the memory unit 14. The controller 15 sets its status as a master unit when the frequency of the start signal corresponds to a fundamental frequency.
  • the controller 15 sets its status as a slave unit when the frequency of the start signal received through the first terminal 11 does not correspond to the fundamental frequency stored in the memory unit 14.
  • the memory unit 14 may further store additional frequency values.
  • the controller 15 sets its own position (master or slave) and then starts a start signal obtained by adding an additional frequency value stored in the memory unit 14 to the frequency of the start signal received through the first terminal 11. Output through the second terminal 12.
  • the controller 15 may set its own communication identifier by determining whether the frequency of the start signal received through the first terminal 11 is a value in which some additional frequency values are added to the basic frequency.
  • the controller 15 may determine whether the frequency value of the start signal input to the first terminal 11 corresponds to the fundamental frequency, and how many additional frequencies have been added to the fundamental frequency.
  • the battery management unit 10 may further include a frequency analyzer.
  • the frequency analyzer may analyze the frequency of the start signal input through various methods. For example, the frequency analyzer may analyze the power value profile for each frequency of the start signal, and determine a frequency value having the largest power value as the frequency of the start signal.
  • the battery management unit 10 may include a frequency generator ( frequency generator) may be further included.
  • the frequency generator may generate a frequency corresponding to a frequency value obtained by adding a predetermined number of additional frequency values to a fundamental frequency. Through this, a start signal having a desired frequency value may be output through the second terminal 12.
  • the battery management unit 10 may further include a frequency modulator.
  • the frequency modulator may modulate the frequency value of the start signal received through the first terminal 11 to a frequency corresponding to a frequency value to which a predetermined number of additional frequency values are added. Through this, a start signal having a desired frequency value may be output through the second terminal 12.
  • a battery management system including a plurality of battery management units and a serial communication line connecting the plurality of battery management units.
  • FIG. 2 is a block diagram schematically illustrating a configuration of a battery management system according to an embodiment of the present invention.
  • N battery management units 10 are connected to one another via a serial communication line 13.
  • the serial communication line may be a daisy chain.
  • Daisy-chain refers to a bus connection that is connected continuously.
  • Daisy chains unlike simple bus connections, support a signal transmission scheme in which one device in a chain can relay signals to another device. All devices connected in a daisy chain can transmit the same signal, but the device receiving the signal can also modulate the signal to the other device.
  • the battery management system includes a battery management system and a plurality of secondary batteries (not shown) electrically connected to control charge and discharge by the battery management system. would.
  • the battery pack may be a component of a battery driving system including a battery pack and a load supplied with power from the battery pack.
  • Examples of the battery driving system include an electric vehicle (EV), a hybrid vehicle (HEV), an electric bicycle (E-Bike), a power tool, a power storage device, an energy storage system, an uninterruptible power supply, a UPS, A portable computer, a portable telephone, a portable audio device, a portable video device, and the like may be used.
  • An example of the load may include various circuit components supplying power supplied by a battery or a motor that provides rotational power by the power supplied by the battery pack. It may be a power conversion circuit for converting the power required.
  • the electric vehicle has a central control unit for controlling various components of the electric vehicle.
  • the central control unit also controls the battery pack.
  • the central control unit is connected to one end of the serial communication line 13 included in the battery pack. From the standpoint of the battery management unit 10, the central control device recognizes the external control unit 20 because it controls the battery pack.
  • the external control unit 20 outputs a start signal having a fundamental frequency through the serial communication line 13.
  • the fundamental frequency is 10 Hz.
  • the battery management unit 10-1 directly connected to the external control unit 20 through the serial communication line 13 of the battery management units receives a start signal.
  • the battery management unit 10-1 sets itself as a master unit because the frequency of the received start signal corresponds to a fundamental frequency stored in the memory unit 14.
  • the battery management unit 10-1 outputs a start signal obtained by adding the additional frequency value stored in the memory unit 14 to the serial communication line 13.
  • the additional frequency value is 10 Hz.
  • the battery management unit 10-1 outputs a start signal having a frequency of 20 Hz to the battery management unit 10-2 connected to the right side.
  • the battery management unit 10-2 sets its status as a slave unit because the frequency of the received start signal does not correspond to the fundamental frequency stored in the memory unit 14. And the battery management unit 10-2 outputs the starting signal which added the additional frequency value to the said serial communication line 13. Therefore, the battery management unit 10-2 outputs a start signal having a frequency of 30 Hz to the battery management unit 10-3 connected to the right side.
  • the battery management unit 10-3 sets its status as a slave unit.
  • each battery management unit 10 can set its own communication identifier by determining whether the frequency of the received start signal is a value in which some additional frequency values are added to the basic frequency. For example, each battery management unit 10 may recognize the number of added frequencies as its communication identifier. More specifically, the battery management unit 10-2 has a frequency of the start signal received by the battery management unit 10-2, and the frequency value added to the basic frequency 10 Hz is 10 Hz. Since the additional frequency value has been added once, the battery management unit 10-2 sets its communication identifier to 'slave-1'. The battery management unit 10-3 sets its communication identifier to 'slave-2' because the added frequency value is 20 Hz (two additions).
  • the battery management unit 10-3 sets its communication identifier to 'slave-3' because the added frequency value is 30 Hz (three additions). In this manner, the battery management unit 10 may set communication identifiers so that they do not overlap each other.
  • the communication identifiers 'slave-1 and slave-2 slave-3' are arbitrarily set identifiers for convenience of understanding and do not limit the present invention. Accordingly, the present invention can set various types of identifiers.
  • the controller 15 may include a processor, an application-specific integrated circuit (ASIC), another chipset, a logic circuit, a register, a communication modem, and a data processor, which are known in the art to execute the above-described various control logics. Device and the like.
  • ASIC application-specific integrated circuit
  • the control unit 15 may be implemented as a set of program modules.
  • the program module may be stored in the memory unit 14 and executed by a processor.
  • the memory unit 14 may be inside or outside the controller 15 and may be connected to the controller 15 by various well-known means.
  • the memory unit 14 is a mass storage medium such as a semiconductor device or a hard disk known to be capable of recording and erasing data such as RAM, ROM, EEPROM, etc., which collectively refers to a device for storing information regardless of the type of device. Does not refer to a particular memory device.
  • control unit 15 measures the electrical characteristics including the voltage or current of the secondary battery, charge and discharge control, equalization control, SOC (State Of Charge) to perform the function as the battery management unit 10 Various control functions applicable at the level of those skilled in the art, including estimation of the In addition, the controller 15 transmits to a higher unit (master unit or external control unit) than the self via the serial communication line 13 regarding the state of the secondary battery in charge thereof, or from the upper unit to the secondary battery. It can receive a control signal associated with charging and discharging.
  • master unit or external control unit master unit or external control unit
  • each component of the present invention illustrated in FIGS. 1 and 2 should be understood as logically divided components rather than physically divided components.
  • each configuration corresponds to a logical component in order to realize the technical idea of the present invention, so that even if each component is integrated or separated, if the function performed by the logical configuration of the present invention can be realized, it is within the scope of the present invention. It should be construed that the components that perform the same or similar functions are to be interpreted as being within the scope of the present invention regardless of whether they correspond in terms of their names.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente invention porte sur une unité de gestion de batterie pour régler un identificateur de communication par l'intermédiaire d'une fréquence d'un signal de démarrage. L'unité de gestion de batterie, selon la présente invention, analyse une fréquence d'un signal de démarrage reçu. Si la fréquence du signal de démarrage est une fréquence fondamentale, l'unité de gestion de batterie se règle elle-même en tant qu'unité maître. Si la fréquence du signal de démarrage n'est pas la fréquence fondamentale, l'unité de gestion de batterie se règle elle-même en tant qu'unité esclave. En outre, l'unité de gestion de batterie, selon la présente invention, délivre le signal de démarrage par modulation de la fréquence du signal de démarrage en une fréquence produite par l'ajout d'une valeur de fréquence supplémentaire à la fréquence reçue dans l'unité de gestion de batterie, lors de la délivrance du signal de démarrage à une autre unité de gestion de batterie voisine. Ainsi, l'unité de gestion de batterie est configurée pour régler l'état de l'unité de gestion de batterie, et également régler un identificateur de communication de l'unité de gestion de batterie par analyse d'une valeur de la fréquence reçue.
PCT/KR2015/001767 2014-02-24 2015-02-24 Unité de gestion de batterie et procédé de réglage d'identificateur au moyen d'une modulation de fréquence WO2015126225A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2016570752A JP6513711B2 (ja) 2014-02-24 2015-02-24 周波数変調を用いて識別子を設定するバッテリー管理ユニット及び方法
EP15752022.2A EP3096431B1 (fr) 2014-02-24 2015-02-24 Unité de gestion de batterie et procédé de réglage d'identificateur au moyen d'une modulation de fréquence
CN201580008995.9A CN106030964B (zh) 2014-02-24 2015-02-24 用于通过使用频率调制设置标识符的电池管理单元和方法
US15/117,490 US9973011B2 (en) 2014-02-24 2015-02-24 Battery management unit and method for setting identifier by using frequency modulation

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20140021282 2014-02-24
KR10-2014-0021282 2014-02-24
KR10-2015-0025843 2015-02-24
KR1020150025843A KR101583374B1 (ko) 2014-02-24 2015-02-24 주파수 변조를 이용하여 식별자를 설정하는 배터리 관리 유닛 및 방법

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN105653003A (zh) * 2015-12-30 2016-06-08 深圳市科陆电子科技股份有限公司 电池管理单元、电池管理系统及其通信管理方法及系统
CN111509308A (zh) * 2019-01-31 2020-08-07 北京新能源汽车股份有限公司 一种电池管理系统子板编码的控制方法、装置及系统

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JP2010141971A (ja) * 2008-12-09 2010-06-24 Mitsubishi Heavy Ind Ltd 電池装置
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WO2012165858A2 (fr) * 2011-05-31 2012-12-06 주식회사 엘지화학 Dispositif de stockage d'énergie, système de stockage d'énergie utilisant ce dispositif, et procédé de configuration de système de stockage d'énergie
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105653003A (zh) * 2015-12-30 2016-06-08 深圳市科陆电子科技股份有限公司 电池管理单元、电池管理系统及其通信管理方法及系统
CN111509308A (zh) * 2019-01-31 2020-08-07 北京新能源汽车股份有限公司 一种电池管理系统子板编码的控制方法、装置及系统

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