WO2015139664A1 - 电池管理装置 - Google Patents

电池管理装置 Download PDF

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Publication number
WO2015139664A1
WO2015139664A1 PCT/CN2015/074807 CN2015074807W WO2015139664A1 WO 2015139664 A1 WO2015139664 A1 WO 2015139664A1 CN 2015074807 W CN2015074807 W CN 2015074807W WO 2015139664 A1 WO2015139664 A1 WO 2015139664A1
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WO
WIPO (PCT)
Prior art keywords
battery
management unit
battery management
circuit
management device
Prior art date
Application number
PCT/CN2015/074807
Other languages
English (en)
French (fr)
Inventor
杨安陶
陈铮铮
Original Assignee
台湾立凯绿能移动股份有限公司
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 台湾立凯绿能移动股份有限公司 filed Critical 台湾立凯绿能移动股份有限公司
Priority to EP15764789.2A priority Critical patent/EP3121929A4/en
Priority to CA2943305A priority patent/CA2943305C/en
Priority to KR1020167029210A priority patent/KR101889206B1/ko
Priority to JP2017500122A priority patent/JP6336673B2/ja
Priority to CN201580014070.5A priority patent/CN106463998A/zh
Priority to US15/127,487 priority patent/US10124694B2/en
Publication of WO2015139664A1 publication Critical patent/WO2015139664A1/zh

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Classifications

    • 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/3644—Constructional arrangements
    • G01R31/3648—Constructional arrangements comprising digital calculation means, e.g. for performing an algorithm
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/392—Determining battery ageing or deterioration, e.g. state of health
    • 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
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00036—Charger exchanging data with battery
    • 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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • 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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014—Circuits for equalisation of charge between batteries
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/005—Detection of state of health [SOH]
    • 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
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the present disclosure relates to a battery management device, and more particularly to a battery management device having a memory circuit independently provided in a battery module in a battery management device.
  • the battery cells of each battery module in the battery box are degraded at different rates during their use, and the capacitance of each battery module inevitably begins to increase after about three years of use.
  • the decline of the ground causes the mileage of electric vehicles to be reduced by more than 30%.
  • the capacitance and internal resistance of all battery modules in the battery box must fall within a similar range, so regardless of the battery module The length of the period, any decaying battery modules in the battery box will be replaced.
  • the battery box renter In order to obtain the status of the battery module, the battery box renter must make frequent comparisons to predict the battery capacity of the battery module and confirm the status of the battery box, so as to provide quality service to the electric bus or electric taxi operator. .
  • the comparison must be performed in a special facility, and the battery module in the battery box, after replacement or newly installed battery module, is re-aligned, its operational information, state of health (state of health, SOH) history, state of charge (SOC) history, and usage history need to be downloaded and transferred from the relevant battery management unit or electronic control unit (ECU).
  • Battery box rentals are time consuming and expensive.
  • a main object of the present disclosure is to provide a battery management device that enables efficient and reliable data transmission between a vehicle electronic control unit, a charging system, and a battery module.
  • a secondary object of the present disclosure is to provide a battery management device that can ensure that the battery operation information and the usage history can be downloaded after the failure of the electromechanical system or the battery module of the electric vehicle, so that the battery service station can track manufacturing defects and Monitor the quality and performance of battery modules during the rental and sale process.
  • Another object of the present disclosure is to provide a battery management device, which can enable battery modules to independently provide battery operation information and usage history to the charger when charging the battery module, and can effectively compare The battery operation information and usage history of each battery module are used to detect the status of each battery module.
  • the present disclosure provides a battery management apparatus including at least one exchangeable battery module, and each of the exchangeable battery modules includes: a battery management unit having a voltage measurement circuit and a memory circuit, and a voltage The measuring circuit and the memory circuit are insulated from each other; the relay is used to switch the internal circuit of the exchangeable battery module; and the battery core group is connected to the battery management unit to provide power for the battery management device; and the battery box management unit, and at least A voltage measuring circuit connection of the exchangeable battery module; wherein the voltage measuring circuit is powered by the battery core group and transmits a voltage information to the battery box management unit, and the memory circuit can only be input/output through the memory through the battery box management unit The connector is read and written.
  • FIG. 1 is an explanatory diagram of an exemplary architecture when a battery management device according to a preferred embodiment of the present disclosure is connected to an electric vehicle.
  • FIG. 2 is a detailed structural view of the battery management device shown in FIG. 1.
  • FIG. 2 is a detailed structural view of the battery management device shown in FIG. 1.
  • FIG. 3 is a detailed structural diagram of a battery management device according to a preferred embodiment of the present disclosure when it is connected to a charging system.
  • the battery management device 100 of the present invention includes a housing (not shown), a battery compartment management unit 102, and a plurality of exchangeable battery modules 130, and a housing (not shown) of the battery management device 100 is provided.
  • the battery management device 100 can be, but is not limited to, a battery box.
  • Each of the exchangeable battery modules 130 has a battery core group 125 and a battery management unit 101.
  • the battery management device 100 has four exchangeable battery modules 130, but the number can be practical.
  • the battery management unit 102 is connected to the battery management unit 101, the positive relay 108 (shown in FIG. 2), and the negative relay 109 (shown in FIG. 2) in the plurality of exchangeable battery modules 130, and in addition, when the battery management device When connected to an electric vehicle, 100 can be connected to the electronic control unit 103 of the electric vehicle through the battery management unit 102, or when the battery management device 100 is connected to a charging system 201 (as shown in FIG. 3). The same can be connected to the charging system 201 through the battery box management unit 102, and the connection manner of the details thereof is as follows.
  • the battery pack 125 of each of the interchangeable battery modules 130 is coupled to its corresponding battery management unit 101 and can be used as a source of electrical power for the switched battery module 130.
  • the battery management unit 101 has a voltage measuring circuit 106 and a memory circuit 104, and the voltage measuring circuit 106 and the memory circuit 104 are insulated from each other.
  • the memory circuit 104 is a non-volatile memory circuit, but is not limited thereto.
  • the battery management unit may also have an isolation circuit 105, such as an optical coupler, but is not limited thereto. In this embodiment, the isolation circuit 105 is disposed between the battery management unit 102 and the voltage measurement circuit 106.
  • the isolation of the isolation circuit 105 allows the battery management unit 102 and the voltage measurement circuit 106 to be electrically insulated. Signals can still be passed to each other.
  • the memory circuit 104 is configured to store the battery operation information of the exchangeable battery module 130, and can only be read and written by the battery box management unit 102, thereby continuously accumulating and storing the battery operation information and the usage history of the exchangeable battery module 130.
  • each of the battery management units 101 can be further divided into a first block 101a and a second block 101b, and the voltage measuring circuit 106 and the isolation circuit 105 in the battery management unit 101 are disposed in the first block.
  • the memory circuit 104 in the battery management unit 101 is independently disposed in the second block 102b. Since the first block 101a and the second block 101b are isolated from each other and insulated, the voltage measurement is set in two different blocks.
  • the circuit 106 and the memory circuit 104 can also be insulated from each other.
  • the voltage measuring circuit 106 is first linked to the battery box management unit 102 via the isolation circuit 105 and through an command input/output connector 127, thereby using the voltage in the exchangeable battery module 130.
  • the information is provided to the battery box management unit 102, and the voltage information is processed by the battery box management unit 102 and converted into battery operation information.
  • the battery operation information may be a state of charge, a state of soundness, and a history of the battery. Information such as current usage, vehicle position history, etc., but not limited to this.
  • the memory circuit 104 of the battery management unit 101 is connected to the battery box management unit 102 via a memory input/output connector 126, and since the memory circuit 104 is only connected to the battery box management unit 102, The circuit is connected so that it can only be read and written by the battery box management unit 102 through the pair of memory input/output connectors 126.
  • the power supply of the voltage measuring circuit 106 in the first block 101a is provided by the battery core group 125, and the power supply of the memory circuit 104 in the second block 101b is powered by a low voltage power supply in the battery box management unit 102 ( Not shown) is provided through the memory input/output connector 126.
  • connection state of the battery management device 100 of the present disclosure when used in an electric vehicle and when charging is performed will be further described.
  • FIG. 2 is a detailed structural diagram of the battery management device shown in FIG. 1.
  • the battery management device 100 of the present disclosure is composed of a battery box management unit 102 and an exchangeable battery module 130.
  • the battery management device 100 of the present disclosure displays only one set of exchangeable battery modules.
  • the exchangeable battery module 130 has a battery core group 125, a battery management unit 101, a positive relay 108, a negative relay 109, and the like.
  • the battery cell group 125 is composed of a plurality of battery cells 1251, 1252, 1253, 1254, and 1255, thereby providing electrical energy of the exchangeable battery module 130, and the number of cells in the battery cell group 125 can be
  • the actual application and variations are not intended to limit the composition of the battery cell stack 125 of the present disclosure.
  • the battery management unit 101 has the first block 101a and the second block 101b which are separated from each other by the battery management unit 101, such as the voltage measuring circuit 106, the isolation circuit 105, and the memory circuit 104.
  • the voltage measuring circuit 106 and the isolation circuit 105 are disposed in the first block 101a
  • the memory circuit 104 is disposed in the second block 101b, so that the voltage measuring circuit 106 and the memory circuit 104 can mutually Isolation and insulation settings.
  • the positive electrode relay 108 and the negative electrode relay 109 are respectively connected to the positive and negative poles of the battery cell group 125.
  • the positive electrode relay 108 is connected to the positive electrode of the battery cell 1251 in the battery cell group 125.
  • the negative relay 109 is connected to the negative pole of the battery core 1255 in the battery core group 125, but not limited thereto, thereby regulating the circuit state of the exchangeable battery module 130.
  • the exchangeable battery module 130 is connected to the positive electrode relay 108 and the negative electrode relay 109 via the two relay control terminals 128, and the circuit of the positive electrode relay 108 and the negative electrode relay 109 is adjusted to be engaged or disengaged.
  • the positive electrode relay 108 and the negative electrode relay 109 are also respectively connected to the battery module positive electrode 110 and the battery module negative electrode 111, thereby providing connection with the electric vehicle or with an external power source (for example, the charging system 201 of FIG. 3). To power or charge.
  • the battery management unit 102 communicates with the battery of the exchangeable battery module 130 via an indication input/output connector 127.
  • the isolation circuit 105 and the voltage measurement circuit 106 in the unit 101 are connected, and the isolation circuit 105 is disposed between the voltage measurement circuit 106 and the battery box management unit 102, thereby enabling the voltage measurement circuit 106 and the battery management unit 101.
  • the battery management unit 102 is further connected to the memory circuit 104 in the battery management unit 101 of the exchangeable battery module 130 via a memory input/output connector 126.
  • the low voltage power source (not shown) in the battery box management unit 102 supplies power to the memory circuit 104, and the memory circuit 104 can only be read and written by the battery box management unit 102.
  • the battery box management unit 102 is connected to the positive relay 108 and the negative relay 109 of the exchangeable battery module 130 via two relay control terminals 128, whereby the battery box management unit 102 can pass through the relay control connector 128. To further adjust the circuit state of the positive relay 108 and the negative relay 109.
  • the battery box management unit 102 can be connected to the vehicle electronic control unit 103 via a battery input/output connector 124, whereby the battery box management unit 102 can be electronically controlled with the vehicle.
  • the unit 103 transmits the battery operation information and usage history of the exchangeable battery module 130.
  • the battery management device 100 of the present disclosure can continuously receive voltage information from the voltage measuring circuit 106 of the battery management unit 101 via the input/output connector 127 while the electric vehicle is operating, and at the same time The voltage information is processed to obtain a list of battery operation information, which is then written to the memory circuit 104 via the memory input/output connector 126, or electronically controlled to the vehicle via the battery input/output connector 124.
  • Unit 103 the memory circuit 104 of the present disclosure is substantially independent of structure, is insulated and disposed inside the battery management unit 101, and is externally powered.
  • the exchangeable battery module The battery management unit 101 of 130 cannot directly read or store the memory circuit 104, but if the exchangeable battery module 130 fails, the first block 101a and the second block 101b of the battery management unit 101
  • the isolation insulation arrangement, the surge current generated by the fault only destroys the battery core group 125 in the exchangeable battery module 130 and the voltage measurement circuit 106 in the first block 101a of the battery management unit 101, the battery management unit
  • the memory circuit 104 in the second block 101b of 101 is not affected by the surge current, and thus the battery operation information stored in the memory circuit 104 is not damaged, thereby achieving the black box used by the aircraft. Effect.
  • FIG. 3 is a detailed structural diagram of the battery management device according to the preferred embodiment of the present disclosure when it is connected to a charging system. 2 is different from FIG. 3 in that the battery management device 100 of FIG. 3 is connected to a charging system 201 and the battery management device 100 of FIG. 2 is connected to a vehicle electronic control unit 103.
  • the architecture and connection mode of the battery management device 100 of the present disclosure In the foregoing description, only the differences will be described below.
  • the battery box management unit 102 when charging is performed, the battery box management unit 102 is connected to a charging system 201 via a battery input/output connector 124, whereby the battery box management unit 102 can perform data transmission with the charging system 201.
  • the charging system 201 further provides a positive charging terminal 202 and a negative charging terminal 203 for respectively connecting to the battery module positive electrode 110 and the battery module negative electrode 111 of the battery management device 100, thereby replacing the exchangeable battery module of the battery management device 100. 130 is charged.
  • the battery usage information of the battery module 130 is stored in the memory circuit 104 of the exchangeable battery module 130.
  • the charging system 201 can also be directly read and stored in each of the exchangeable battery modules through the battery management unit 102 of the battery management device 100. Battery usage information within 130.
  • the battery box renter can simultaneously perform the electrical comparison of the battery modules 130 while charging the battery management device 100, and compare the current chargeable data with the previous charging data by the charging system 201 to analyze each of the exchangeable batteries.
  • the battery renter can check the status of each of the exchangeable battery modules 130 in the battery management device 100 at each charging, and the degree of decline in the exchangeable battery module 130 seriously affects the vehicle. Replace the mileage before the mileage to maintain an excellent battery box rental service.
  • the battery management device of the present disclosure can be exchanged by separately arranging the memory circuit in the battery management unit of the exchangeable battery module and setting it to be accessible and powered only by the battery management unit.
  • the surge current generated when the battery module fails will not damage the battery operation information stored in the memory circuit, so even if any exchangeable battery module fails, the battery box renter can still pass through the battery management unit.
  • the memory input/output connector reads battery operation data in the memory circuit to identify the cause of the failure of the exchangeable battery module, thereby improving the potential problem of the exchangeable battery module; and, through the architecture of the present disclosure, When the charging system can directly charge the battery management device, the current charging data and the previous charging data are compared, thereby calculating the soundness state of the battery, without the need to compare the exchangeable battery modules as in the prior art.
  • the relevant data needs to be downloaded through the battery box management unit or the vehicle electronic control unit, thereby simplifying the comparison process. Therefore, this disclosure is of great industrial value and is submitted in accordance with the law.

Abstract

一种电池管理装置（100），该装置能提升电池模块的质量管控能力以及系统整合度，包含可交换式电池模块（130），且可交换式电池模块（130）包含电池管理单元（101），具有电压量测电路（106）以及内存电路（104），且电压量测电路（106）与内存电路（104）相互绝缘设置；继电器（108，109），用以切换可交换式电池模块（130）的内部电路；以及电池芯组（125），连接至电池管理单元（101），提供电池管理装置（100）的电源；以及电池箱管理单元（102），与可交换式电池模块（130）的电压量测电路（106）连接；其中，电压量测电路（106）由电池芯组（125）供电并传输电压信息至电池箱管理单元（102），内存电路（104）仅可由电池箱管理单元（102）透过内存输入/输出接头（126）进行读写。

Description

电池管理装置 技术领域
本公开关于一种电池管理装置，尤指一种电池管理装置内的电池模块内具有独立隔离设置的内存电路的电池管理装置。
背景技术
现今，电动车辆已经渐渐开始取代传统以石油作为动力能源的车辆，并逐渐扩及到大众运输的领域。在众多将电能系统植入大众运输系统的可行方案中，其中一种即是以可替换的电池箱搭配换电站的方式去进行，其乃将换电站内的电池箱先充饱电，当电动巴士内的电池箱电力耗尽时，电动巴士可在特定的换电站停靠，并在五至十分钟内将车上已耗尽的电池箱与换电站充饱的电池箱相互更换，如此一来，电动巴士即获得充足电力得以继续行驶。
于实际应用上，由于电池箱内各电池模块的电池芯皆会在其使用时期内分别以不同的速率退化，且各个电池模块的电容量在大约使用三年后便无可避免地开始大幅度地衰退，导致电动车辆可行驶的里程数减少约30％以上，而为了使电池箱放电均匀，电池箱内所有电池模块的电容量以及内部电阻都须落于相似的范围，故不论电池模块使用期间的长短，电池箱内任何衰退的电池模块皆会被更换。而为了得到电池模块的状态，电池箱租售业者必须要经常性地进行比对，借以预测电池模块的电容量并确认电池箱的状态，如此才能提供优质的服务给电动巴士或电动出租车业者。
于现有技术中，进行比对必须要在特殊设施内进行，而电池箱内不论是替换上或新安装上的电池模块在重新比对之后，其运作信息、健全度状态(state of health,SOH)历程、充电状态(state of charge,SOC)历程以及使用历程等信息皆需要从相关的电池箱管理单元或车辆电子控制单元(Electronic control unit,ECU)下载并转移，此一比对过程对电池箱租售业者而言既费时又昂贵。
另外，当电池模块发生故障事件时常会产生涌浪电流，会同时毁坏电池芯及造成电池管理单元损坏，使储存于电池管理单元内的电池模块运作信息遭受到不可回复性的破坏，因而电池模块用户无法取得损坏的电池模块内的电池信息。
因此，如何发展一种电池管理装置，以解决现有技术中，当电池模块故障时产生的浪涌电流损坏电池管理单元而使电池信息无法被读取以及取得电池模块状态不便又费时等诸多问题，实为本领域迫切需解决的问题。
发明内容
本公开的主要目的在于提供一种电池管理装置，使车辆电子控制单元、充电系统以及电池模块间能有效且可靠地进行数据传输。
本公开的次要目的在于提供一种电池管理装置，使电动车辆的机电系统或电池模块故障后，仍然能够确保电池运作信息及使用历程可被下载，使电池服务站能够追踪制造缺陷，并在租售过程中监控电池模块的质量及效能。
本公开的另一目的在于提供一种电池管理装置，该电池管理装置可使电池模块在充电时，各电池模块能独立地提供电池运作信息及使用历程至充电机台，并能有效地比对各电池模块的电池运作信息及使用历程，借以检测每一电池模块的状态。
为达上述目的，本公开提供一种电池管理装置，至少包含：至少一可交换式电池模块，且每一可交换式电池模块包含：电池管理单元，具有电压量测电路以及内存电路，且电压量测电路与内存电路相互绝缘设置；继电器，用以切换可交换式电池模块的内部电路；以及电池芯组，连接至电池管理单元，提供电池管理装置的电源；以及电池箱管理单元，与至少一可交换式电池模块的电压量测电路连接；其中，电压量测电路由电池芯组供电并传输一电压信息至该电池箱管理单元，内存电路仅可由电池箱管理单元透过内存输入/输出接头进行读写。
附图说明
图1为本公开较佳实施例的电池管理装置连接至一电动车辆时的示例性架构说明图。
图2为图1所示的电池管理装置的细部架构说明图。
图3为本公开较佳实施例的电池管理装置连接至一充电系统时的细部架构说明图。
【符号说明】
100：电池管理装置
101：电池管理单元
101a：第一区块
101b：第二区块
102：电池箱管理单元
103：车辆电子控制单元
104：内存电路
105：隔离电路
106：电压量测单元
108：正极继电器
109：负极继电器
110：电池模块正极
111：电池模块负极
124：电源输入/输出接头
125：电池芯组
1251、1252、1253、1254、1255：电池芯
126：内存输入/输出接头
127：指令输入/输出接头
128：继电器控制接头
130：电池模块
201：充电系统
202：正极充电端
203：负极充电端
具体实施方式
体现本公开特征与优点的一些典型实施例将在后段的说明中详细叙述。应理解的是本公开能够在不同的方式上具有各种的变化，其皆不脱离本公开的范围，且其中的说明及附图在本质上当作说明之用，而非用于限制本公开。
图1为本公开较佳实施例的电池管理装置连接至一电动车辆时的示例性架构说明图。如图所示，本发明的电池管理装置100包含壳体(未图标)、电池箱管理单元102以及多个可交换式电池模块130，电池管理装置100的壳体(未图示)用以提供一容置空间，用以容置电池箱管理单元102及多个可交换式电池模块130，且于本实施例中，该电池管理装置100可为但不限为一电池箱。其中，每一可交换式电池模块130皆具有一电池芯组125以及一电池管理单元101，于本实施例中，电池管理装置100具有四个可交换式电池模块130，然其数量可依实际施作情形任施改变，并不以此为限。电池箱管理单元102与多个可交换式电池模块130内的电池管理单元101、正极继电器108(如图2所示)、负极继电器109(如图2所示)连接，此外，当电池管理装置100与一电动车辆连接时，则可透过电池箱管理单元102以与电动车辆的辆电子控制单元103连接，又或者是当电池管理装置100与一充电系统201连接时，(如图3所示)，则同样可透过电池箱管理单元102以与充电系统201相连接，至于其细部的连接方式则详述如后。
请续参阅图1，如图所示，每一可交换式电池模块130的电池芯组125连接至其对应的电池管理单元101，并且可作为交换式电池模块130的的电力来源。电池管理单元101中具有电压量测电路106以及内存电路104，且电压量测电路106与内存电路104相互绝缘设置。于一些实施例中，内存电路104为一非挥发性内存电路，但不以此为限。电池管理单元还可具有隔离电路105，例如为一光耦合器，但不以此为限。于本实施例中，隔离电路105设置于电池箱管理单元102与电压量测电路106之间，透过隔离电路105的设置，电池箱管理单元102与电压量测电路106间电性绝缘、但仍可相互传递信号。内存电路104用于储存可交换式电池模块130的电池运作信息，且仅可由电池箱管理单元102进行读写，借此以持续累积、储存可交换式电池模块130的电池运作信息及使用历程。
再于本实施例中，每一个电池管理单元101还可区分为第一区块101a与第二区块101b，电池管理单元101内的电压量测电路106与隔离电路105设置于第一区块101a内， 而电池管理单元101内的内存电路104独立设置于第二区块102b内，由于第一区块101a及第二区块101b相互隔离且绝缘设置，因此设置于两不同区块内的电压量测电路106与内存电路104亦可达相互绝缘设置的功效。于第一区块101a中，电压量测电路106先经过隔离电路105再透过一指令输入/输出接头127与电池箱管理单元102链接，借此，以将可交换式电池模块130内的电压信息提供给电池箱管理单元102，并由电池箱管理单元102对此电压信息进行处理并转换为电池运作信息，于一些实施例中，电池运作信息可为充电状态、健全度状态、电池温度历程、电流用量、车辆位置历程…等信息，但皆不以此为限。于第二区块101b中，电池管理单元101的内存电路104经由一内存输入/输出接头126与电池箱管理单元102连接，且由于内存电路104仅与电池箱管理单元102连接，而未与其他电路连接，故其仅可由电池箱管理单元102透过内存输入/输出接头126对的进行读写。另外，第一区块101a中的电压量测电路106的电源由电池芯组125提供，而第二区块101b中的内存电路104的电源则由电池箱管理单元102内的一低电压电源(未图标)透过内存输入/输出接头126所提供。
接着进一步说明本公开的电池管理装置100分别使用于电动车辆时及进行充电时的连接状态。
请参阅图2，图2为图1所示的电池管理装置的细部架构说明图。如图所示，本公开的电池管理装置100由电池箱管理单元102及可交换式电池模块130所构成，于本实施例中，本公开的电池管理装置100仅显示一组可交换式电池模块130以便于说明，应理解的是，本图可交换电池模块130的数量仅为示意所用，并非用以限制本公开。其中，可交换式电池模块130具有一电池芯组125、电池管理单元101、正极继电器108、负极继电器109等组件。于本实施例中，电池芯组125由多个电池芯1251、1252、1253、1254及1255所组成，借此提供可交换式电池模块130电能，电池芯组125内的电池芯数量可依其实际应用方式而任施变化，并非用以限制本公开电池芯组125的组成。电池管理单元101则如前所述，具有电压量测电路106、隔离电路105以及内存电路104等电路，且透过电池管理单元101的相互隔离设置的第一区块101a与第二区块101b，以使电压量测电路106与隔离电路105设置于第一区块101a内，并使内存电路104设置于第二区块101b中，以使电压量测电路106与内存电路104之间可相互隔离并绝缘设置。
至于正极继电器108与负极继电器109则分别与电池芯组125的正、负两极连接，举例来说，于本实施例中，正极继电器108即与电池芯组125中的电池芯1251的正极连接，而负极继电器109则与电池芯组125中的电池芯1255的负极连接，但不以此为限，借以调控可交换式电池模块130的电路状态。且于电池管理装置100中，可交换式电池模块130透过两继电器控制接头128分别与正极继电器108与负极继电器109连接，进而以调整正极继电器108与负极继电器109的电路为接合或分离。又于本实施例中，正极继电器108及负极继电器109还分别与电池模块正极110及电池模块负极111相连接，借以提供与电动车辆或是与外部电源(例如图3的充电系统201)相连接、以进行供电或是充电。
接着更进一步说明电池箱管理单元102与本实施例各组件间的连接关，请续参阅图2，电池箱管理单元102经由一指示输入/输出接头127而与可交换式电池模块130的电池管理单元101内的隔离电路105及电压量测电路106相连接，且隔离电路105设置于电压量测电路106与电池箱管理单元102之间，借此可使电压量测电路106与电池管理单元101之间彼此虽电性绝缘、但仍可相互传递讯息；以及电池箱管理单元102又经由一内存输入/输出接头126与可交换式电池模块130的电池管理单元101内的内存电路104连接，同时由电池箱管理单元102内的低电压电源(未图标)供电给内存电路104，且内存电路104仅可由电池箱管理单元102进行读写。又如前所述，电池箱管理单元102经由两个继电器控制接头128与可交换式电池模块130的正极继电器108以及负极继电器109连接，借此，电池箱管理单元102可透过继电器控制接头128以进一步调整正极继电器的108与负极继电器109的电路状态。以及，当电池管理装置100与一电动车辆连接时，则可由电池箱管理单元102经由一电池输入/输出接头124与车辆电子控制单元103连接，借此，电池箱管理单元102可与车辆电子控制单元103传输可交换式电池模块130的电池运作信息及使用历程。
透过上述架构，本公开的电池管理装置100于电动车辆运作时，其电池箱管理单元102可持续经由输入/输出接头127从电池管理单元101的电压量测电路106接收电压信息，且同时将电压信息进行处理以获得一列的电池运作信息，接着透过忆体输入/输出接头126写入至内存电路104内储存，或是透过电池输入/输出接头124提供给电动车辆上的车辆电子控制单元103。另外，对于电池管理单元101而言，本公开的内存电路104实质上一结构独立、绝缘设置于电池管理单元101内部、且由外部供电的组件，透过此一架构，虽可交换式电池模块130的电池管理单元101无法直接对内存电路104进行读取或存入的动作，然若是可交换式电池模块130发生故障时，由于电池管理单元101的第一区块101a与第二区块101b相互隔离绝缘设置，伴随故障所产生的浪涌电流仅会毁坏可交换式电池模块内130的电池芯组125与电池管理单元101的第一区块101a内的电压量测电路106，电池管理单元101的第二区块101b内的内存电路104不会受到浪涌电流的冲击，因而储存于内存电路104内的电池运作信息亦不会被损坏，借此可达到如飞机所使用的黑盒子一般的效果。
请参阅图3，图3为本公开较佳实施例的电池管理装置连接至一充电系统时的细部架构说明图。图2与图3差异在于图3的电池管理装置100与一充电系统201连接而图2的电池管理装置100与一车辆电子控制单元103连接，至于本公开电池管理装置100的架构及连接方式已于前述说明，以下仅就差异处进行说明。如图3所示，当进行充电时，电池箱管理单元102经由电池输入/输出接头124与一充电系统201连接，借此电池箱管理单元102可与充电系统201进行数据传输。另外，充电系统201还提供了一正极充电端202与一负极充电端203以分别连接至电池管理装置100的电池模块正极110与电池模块负极111，借以对电池管理装置100的可交换式电池模块130进行充电。此外，由于各可交换 式电池模块130的电池使用信息储存于可交换式电池模块130的内存电路104内，充电系统201还可透过电池管理装置100的电池箱管理单元102直接读取储存于各可交换式电池模块130内的电池使用信息。借此，电池箱租售业者可于对电池管理装置100充电时同时进行各电池模块130的电性比对，利用充电系统201比对当次充电数据与先前充电数据借以分析各个可交换式电池模块130的状态，且由于此一比对过程在一充电站内，相对于车上进行比对的环境较为稳定，故本公开于充电站内进行比对后所得到的数据较为可靠且精准的，因此，透过本公开的架构，电池租售业者即可在每次充电时一并检查电池管理装置100内各个可交换式电池模块130的状态，在可交换式电池模块130衰退程度严重影响到车辆里程数的前将其替换，以维持优良的电池箱租售服务。
综上所述，本公开的电池管理装置透过将内存电路独立设置于可交换式电池模块的电池管理单元内，且设定为仅能由电池箱管理单元存取并供电，因而当可交换式电池模块故障时所产生的浪涌电流将不会损坏储存于内存电路内的电池运作信息，故即便任一可交换式电池模块故障，电池箱租售业者仍可经由电池箱管理单元透过内存输入/输出接头读取内存电路内的电池运作数据，借以辨识可交换式电池模块故障的原因，进而可针对可交换式电池模块潜在的问题进行改善；此外，且透过本公开的架构，充电系统可直接于电池管理装置进行充电时，同时比对当次充电数据及前次充电数据，借以推算出电池的健全度状态，而不需如先前技术在可交换式电池模块比对完成后，需透过电池箱管理单元或车辆电子控制单元下载相关数据，借此简化了比对作业流程，故本公开极具产业价值，爰依法提出申请。
本公开得由熟悉此技术的人士任施匠思而为诸般修饰，然皆不脱如附权利要求所欲保护的范围。

Claims (8)

  1. 一种电池管理装置，至少包含：
    至少一可交换式电池模块，且每一该可交换式电池模块包含：
    一电池管理单元，具有一电压量测电路以及一内存电路，且该电压量测电路与内存电路相互绝缘设置；
    一继电器，用以切换该可交换式电池模块的内部电路；以及
    一电池芯组，连接至该电池管理单元，提供该电池管理装置的电源；以及
    一电池箱管理单元，与该至少一可交换式电池模块的该电压量测电路连接；
    其中，该电压量测电路由该电池芯组供电并传输一电压信息至该电池箱管理单元，该内存电路用以储存一电池运作信息，且该内存电路仅可由该电池箱管理单元透过一内存输入/输出接头进行读写。
  2. 如权利要求1所述的该电池管理装置，其中该电池管理单元还可区分为一第一区块与一第二区块，该电压量测电路设置于第一区块内，该内存电路设置于该第二区块内，以使该电压量测电路与该内存电路隔离设置，以相互绝缘。
  3. 如权利要求2所述的该电池管理装置，其中该第一区块内还具有一隔离电路，且该隔离电路设置于该电池箱管理单元与该电压量测电路之间。
  4. 如权利要求1所述的该电池管理装置，其中每一该内存电路皆由该电池箱管理单元内的一低电压电源透过该内存输入/输出接头供电。
  5. 如权利要求1所述的该电池管理装置，其中该内存电路为一非挥发性内存电路。
  6. 如权利要求1所述的该电池管理装置，该电池芯组具有多个电池芯。
  7. 如权利要求1所述的该电池管理装置，当进行充电时，该电池箱管理单元连接至一充电系统，该充电系统可透过该电池箱管理单元读取该内存电路内的该电池运作信息，且于充电同时，该充电系统比对当次充电数据与先前充电数据借以分析该至少一可交换式电池模块的状态。
  8. 如权利要求1所述的该电池管理装置，当使用于电动车辆时，该电池箱管理单元连接至一车辆电子控制单元，且该车辆电子控制单元可透过该电池箱管理单元读取该内存电路内的该电池运作信息。
PCT/CN2015/074807 2014-03-21 2015-03-20 电池管理装置 WO2015139664A1 (zh)

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CA2943305C (en) 2019-01-22
KR101889206B1 (ko) 2018-08-16
KR20160135794A (ko) 2016-11-28
US10124694B2 (en) 2018-11-13
JP2017513204A (ja) 2017-05-25
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EP3121929A1 (en) 2017-01-25
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