WO2017185768A1 - Procédé de commande et de charge de système de batterie, système de batterie et véhicule électrique - Google Patents

Procédé de commande et de charge de système de batterie, système de batterie et véhicule électrique Download PDF

Info

Publication number
WO2017185768A1
WO2017185768A1 PCT/CN2016/110041 CN2016110041W WO2017185768A1 WO 2017185768 A1 WO2017185768 A1 WO 2017185768A1 CN 2016110041 W CN2016110041 W CN 2016110041W WO 2017185768 A1 WO2017185768 A1 WO 2017185768A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
battery system
electric vehicle
packs
battery packs
Prior art date
Application number
PCT/CN2016/110041
Other languages
English (en)
Chinese (zh)
Inventor
马东辉
姜云启
Original Assignee
北京车和家信息技术有限责任公司
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
Priority claimed from CN201620385338.8U external-priority patent/CN205646898U/zh
Priority claimed from CN201610282296.XA external-priority patent/CN105871011B/zh
Application filed by 北京车和家信息技术有限责任公司 filed Critical 北京车和家信息技术有限责任公司
Publication of WO2017185768A1 publication Critical patent/WO2017185768A1/fr

Links

Images

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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by 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
    • 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
    • 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
    • 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 application is based on the Chinese patent application with the application number being CN201610282296.X, the application date is April 29, 2016, and the application number is CN201620385338.8, and the application date is April 29, 2016, and the above request is required.
  • the priority of the Chinese Patent Application the entire disclosure of which is hereby incorporated by reference in its entirety in its entirety in its entirety in its entirety in its entirety in its entirety in
  • Embodiments of the present invention relate to the field of electric vehicles, and more particularly, to a battery system control and charging method, a battery system, and an electric vehicle.
  • Electric vehicles came into being. Electric vehicles are increasingly favored by people for their low pollution, simple and inexpensive maintenance, low noise, and low operating costs.
  • the present application provides a battery system control and charging method, a battery system, and an electric vehicle to solve the problem of difficulty in charging an existing electric vehicle.
  • a battery system for an electric vehicle includes: at least two battery packs, each of the at least two battery packs being detachably coupled to a battery base of the electric vehicle, Each battery pack corresponds to an identification code, wherein identification codes of battery packs belonging to the same battery system match each other; a battery management system for using the electric vehicle in a state where the battery device is connected to the electric vehicle Communicating, transmitting an identification code corresponding to the at least two battery packs to the electric vehicle.
  • sending the identification code corresponding to the at least two battery packs to the electric vehicle is to facilitate the electric vehicle to determine whether at least two battery packs belong to the same battery system.
  • the electric vehicle can control the electric vehicle to supply power to the electric vehicle if it is determined that at least two battery packs belong to the same battery system.
  • the battery pack in the battery system is detachably connected to the battery base, so that the user can remove the battery pack from the electric vehicle, thereby conveniently charging the battery pack.
  • the battery packs in the battery system correspond to the respective identification codes, so that the electric vehicle selects the battery packs that can be paired to supply power, thereby ensuring the optimal performance of the battery system.
  • an electric vehicle in a second aspect, includes: a battery base, a battery system detachably coupled to the battery base; and a control device configured to receive the at least two of the battery systems Corresponding identification codes corresponding to the battery packs, determining, according to the identification codes corresponding to the at least two battery packs, whether the at least two battery packs belong to the same battery system, in a case where the at least two battery packs belong to the same battery system Controlling the battery system to power the electric vehicle.
  • the battery pack in the battery system is detachably connected to the battery base, so that the user can remove the battery pack from the electric vehicle, thereby conveniently charging the battery pack.
  • the battery packs in the battery system correspond to the respective identification codes, so that the electric vehicle selects the battery packs that can be paired to supply power, thereby ensuring the optimal performance of the battery system.
  • a method for controlling a battery system comprising: determining that the battery system is in a connected state with a battery base of an electric vehicle, wherein the electric vehicle is accessible to the battery system through the battery base Disassembling the connection, the battery system includes at least two battery packs; determining whether the at least two battery packs belong to the same battery system; and in the case where the at least two battery packs belong to the same battery system, controlling the battery system to The electric vehicle is powered.
  • the determining whether the at least two battery packs belong to the same battery system includes: acquiring an identifier of the at least two battery packs, where each The battery packs correspond to an identification code; determine whether the identification codes corresponding to the at least two battery packs match; and if the identification codes corresponding to the at least two battery packs match, determine that the at least two battery packs belong to the same a battery system; if the identification codes corresponding to the at least two battery packs do not match Next, it is determined that the at least two battery packs do not belong to the same battery system.
  • the method further includes determining whether a current state of the battery system is suitable for powering the electric vehicle The controlling the battery system to supply power to the electric vehicle when the identification codes of the at least two battery packs match, comprising: matching identifiers of the at least two battery packs, and the battery Where the current state of the system is adapted to power the electric vehicle, the battery system is controlled to power the electric vehicle.
  • the determining whether the current state of the battery system is suitable for powering the electric vehicle includes: acquiring the battery system The open circuit voltage of the single cell in the battery, and determining whether the single cell in the battery system is short-circuited; the open circuit voltage of the single cell in the battery system is greater than a preset threshold, and the single in the battery system Where the body batteries are not shorted, it is determined that the current state of the battery system is suitable for powering the electric vehicle; otherwise, determining that the current state of the battery system is not suitable for powering the electric vehicle.
  • the preset threshold is 2.0V or 2.2V.
  • a control device for a battery system comprising a module capable of implementing the method of the third aspect.
  • a control device for a battery system comprising a memory for storing a program, the processor for executing a program stored in the memory, when the program is When executed, the processor performs the method of the third aspect.
  • a computer readable storage medium is stored, the program readable medium storing program code for execution by an electric vehicle, the program code comprising instructions for performing the method of the third aspect.
  • a charging method of a battery system comprising: determining that the battery system is in a connected state with a charging device after the battery system is detached from a battery base of the electric vehicle, wherein the battery The system includes at least two battery packs; determining whether the at least two battery packs belong to the same battery system; and in the case where the at least two battery packs belong to the same battery system, controlling the charging device to charge the battery system.
  • the determining the at least two Whether the battery pack belongs to the same battery system comprising: obtaining an identification code of the at least two battery packs, wherein each battery pack corresponds to an identification code; determining whether the identification codes corresponding to the at least two battery packs match; In a case where the identification codes corresponding to the at least two battery packs match, determining that the at least two battery packs belong to the same battery system; and determining that the at least the identification codes corresponding to the at least two battery packs do not match Two battery packs do not belong to the same battery system.
  • the charging method further includes: determining whether a current state of the battery system is suitable for charging; When the identification codes of the at least two battery packs match, controlling the charging device to charge the battery system includes: matching identifiers of the at least two battery packs, and current status of the battery system In the case of charging, the charging device is controlled to charge the battery system.
  • the determining whether the current state of the battery system is suitable for charging comprises: acquiring a single battery in the battery system Open circuit voltage, and determining whether the single cell in the battery system is short-circuited; the open circuit voltage of the single cell in the battery system is less than a preset threshold, and the single cells in the battery system are not short-circuited In case, the current state of the battery system is determined to be suitable for charging; otherwise, it is determined that the current state of the battery system is not suitable for charging.
  • the preset threshold is 2.4V or 2.5V.
  • a charging apparatus for a battery system comprising a module capable of implementing the method of the seventh aspect.
  • a charging apparatus for a battery system comprising a memory for storing a program, the processor for executing a program stored in the memory, when the program is When executed, the processor performs the method of the seventh aspect.
  • a computer readable storage medium is stored, the program readable medium storing program code for execution by an electric vehicle, the program code comprising instructions for performing the method of the seventh aspect.
  • the battery base is disposed at a tail of the electric vehicle.
  • the electric vehicle includes the battery system.
  • a plug-in connection is provided between each of the battery packs and the battery base, that is, each battery pack is inserted into the battery base.
  • the battery pack can be plugged into the battery base and borrowed. Helps to position the electric vehicle.
  • the battery pack can be snap-locked to the battery base.
  • the latching connection may be a plug-in coupling.
  • a plug may be disposed on the battery base, and a jack may be disposed at one end of the battery pack, and the two cooperate with each other to implement the battery system from the electric vehicle. Quick installation and removal on the top.
  • each of the battery packs weighs between 5 kg and 15 kg.
  • the battery pack weighs between 5 kg and 15 kg and is easy to carry around.
  • each of the battery packs weighs between 8 kg and 12 kg.
  • each of the battery packs weighs between 9 kilograms and 11 kilograms.
  • each of the battery packs weighs 10 kilograms.
  • the battery pack weighs about 10 kg and can be easily carried by users.
  • each battery pack includes a handle.
  • the battery pack is provided with a handle that is convenient for the user to carry.
  • each battery pack is in the shape of a rectangular parallelepiped.
  • the at least two battery packs are two battery packs.
  • FIG. 1 is a schematic view of a light electric vehicle according to an embodiment of the present invention.
  • FIG. 2 is a schematic view of the position of a battery system in an electric vehicle.
  • FIG 3 is a schematic view showing the connection of a battery pack and a battery base according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a battery pack according to an embodiment of the present invention.
  • Figure 5 is a schematic illustration of a slot in accordance with an embodiment of the present invention.
  • Figure 6 is a schematic illustration of a plug of an embodiment of the present invention.
  • FIG. 7 is a schematic flow chart of a control method of a first battery system according to an embodiment of the present invention.
  • FIG. 8 is a schematic flow chart of a control method of a second battery system according to an embodiment of the present invention.
  • Fig. 9 is a schematic structural view showing a control device of a first battery system according to an embodiment of the present invention.
  • Figure 10 is a schematic configuration diagram of a control device of a second battery system according to an embodiment of the present invention.
  • Figure 11 is a schematic structural view of a first charging device in accordance with an embodiment of the present invention.
  • Figure 12 is a schematic structural view of a second charging device in accordance with an embodiment of the present invention.
  • the battery system in the embodiment of the present invention is a pluggable and portable battery system. Therefore, the battery system in the embodiment of the present invention may also be referred to as a portable battery system.
  • the electric vehicle tail may have a receiving space for accommodating the battery system and a battery system (shown in FIG. 2) disposed in the receiving space, the battery system providing power required for operation of the electric vehicle.
  • the battery system may include two battery packs connected in series, but the embodiment of the present invention is not limited thereto, and the battery system may include one battery pack, and may also include three. More than 3 battery packs.
  • one battery pack can weigh from 5 kg to 15 kg. In some embodiments, each battery pack can weigh between 8 kg and 12 kg. In some embodiments, each battery pack can weigh between 9 kilograms and 11 kilograms. In some embodiments, a battery pack weighs approximately 10 kg.
  • one end (such as the top) of the battery pack may be provided with a handle for the user to grasp the battery pack.
  • the battery pack can be an approximately rectangular parallelepiped.
  • the height of the battery pack can be about 340 mm
  • the length of the cross section of the battery pack can be about 180 mm
  • the width of the cross section of the battery pack can be about 150 mm.
  • each battery pack can have 2 battery modules. In some embodiments, each battery module can have 171 18650 lithium ion secondary batteries.
  • the capacity of the battery system can be 3.57 KW ⁇ h. In some embodiments, the rated output current of the battery system can be 55A. In some embodiments, the battery system can have a nominal output voltage of 64.8V. In some embodiments, the maximum output power of the battery system can be 10 kW.
  • the battery pack can be connected by a plug-in connection with a battery base disposed at the rear of the electric vehicle.
  • the slot can be provided at the bottom of the battery pack (such as the center of the bottom of the battery pack), and the slot can be constructed as shown in FIG. Further, it can be set on the battery base of the electric vehicle
  • the plug can be constructed as shown in FIG.
  • the battery pack is connected to the battery base by a snap lock.
  • the battery pack is mechanically coupled to the electric vehicle through a plug-in structure and to the electric vehicle. With the plug-in structure, the battery pack can be quickly and easily detached from the electric vehicle.
  • At least one mounting point is disposed on the slot.
  • four mounting points 51 of concentric structure are disposed, wherein the surface of each mounting point 51 is made of soft rubber material.
  • the battery pack is provided with a buffer for the contact between the battery pack and the battery base in the horizontal direction of the XY axis (ie, parallel to the surface of the slot), and the battery pack is relatively horizontally oriented in the XY axis by the deformation characteristics of the soft rubber.
  • There is a certain displacement margin in the battery base In practical applications, the electric car will inevitably become bumpy during driving.
  • At least one bolt is disposed on the slot, for example, four bolts 52 are disposed above the slot in FIG. 5, a spring member 521 is disposed above the bolt 52, and a reinforcing member 522 is disposed on the side, and each The bolts 52 have at least one stiffener 522 coupled to the electrode interface 53 on the socket.
  • the battery pack slot is connected to the battery base plug, the bottom of the battery pack contacts the bolt, and the spring member 521 is provided for the battery pack and the battery in the vertical direction of the Z-axis (ie, perpendicular to the slot surface).
  • the contact between the bases provides cushioning to avoid the problem that the slot electrode interface and the plug electrode interface are not properly contacted due to vibration of the vehicle body.
  • the reinforcing member 522 is used for reinforcing the connection relationship between the fixing bolt 52 and the slot, and when each of the bolts 52 has at least one reinforcing member connected to the electrode interface 53, the fixed electrode interface 53 can be strengthened to prevent the battery pack from being inserted and removed. When the action is large, the problem of easily folding the electrode interface 53 occurs.
  • At least one CAN bus interface 54 is disposed on the slot, and a convex slot 541 is disposed on a side of each CAN bus interface 54, and a protrusion on the plug CAN bus interface can be inserted into the corresponding plug
  • the slot of the slot CAN bus interface 54 is 541, so that when the battery pack is inserted into the battery base, the electrode interface and the CAN bus interface can be aligned.
  • the protruding grooves of different CAN bus interfaces on the slot have different protruding directions. The purpose of this design is to allow the battery pack to be inserted into the battery base only at a certain position, thereby limiting the battery.
  • the positive electrode interface of the package contacts the positive electrode interface of the battery base, and the negative electrode interface of the battery pack contacts the negative electrode interface of the battery base to prevent short circuit of the electrode caused by the reverse insertion of the battery pack.
  • the plug of the battery base is provided with a CAN bus interface corresponding to the battery pack slot.
  • the CAN bus interface 61 is provided with a protruding portion 611 corresponding to the protruding groove in FIG. 5, the shape and size of the protruding portion are matched with the shape and size of the protruding groove, so that the protruding portion is not provided
  • the margin or approximately no margin is inserted into the projection slot of the corresponding slot CAN bus interface.
  • the protruding directions of the different CAN bus interfaces 61 are different, and are respectively aligned with the directions of the projections of the different CAN bus interfaces 54, so that the battery pack is in a certain position.
  • the different CAN bus interfaces on the slot can be connected to the corresponding CAN bus interface on the plug.
  • the battery system in the embodiment of the present invention may include a plurality of battery packs.
  • the parameters between the battery packs of the same battery system are similar, and the matching use can optimize the performance of the battery system.
  • the battery pack mixing of different battery systems may not only reduce the performance of the battery system, but also may damage the life of the battery pack.
  • the identification scheme of the battery pack of the same battery system and the power supply control method based on the recognition result will be described in detail below with reference to FIG.
  • FIG. 7 is a schematic flow chart of a control method of a battery system according to an embodiment of the present invention. It should be understood that the processing steps or operations illustrated in FIG. 7 are merely examples, and that other operations of the present invention or variations of the various operations in FIG. 7 may be performed. Moreover, the various steps in FIG. 7 may be performed in a different order than that presented in FIG. 7, and it is possible that not all operations in FIG. 7 are to be performed. It should also be understood that the method of FIG.
  • control device 7 may be performed by a control device in an electric vehicle, such as a microcontroller, a microprocessor, a Programmable Logic Controller (PLC), a programmable gate array ( a Programmable Gate Array (PGA), an Application Specific Integrated Circuit (ASIC), or a controller capable of receiving signals from the respective sensors, performing logical operations, and transmitting signals to the components; or the control device may include a wireless communication module, that is, an identification code of a battery pack is obtained through a wireless communication module, and the wireless communication module may be, for example, a wireless communication module that supports General Packet Radio Service (GPRS) and short message dual channel transmission data, or It can be a wireless communication module that supports multi-center data communication.
  • GPRS General Packet Radio Service
  • the method of Figure 7 includes:
  • an identification code may be provided for each battery pack to determine whether the at least two battery packs belong to the same battery system by detecting whether the identification codes of the at least two battery packs match each other.
  • control battery system supplies power to the electric vehicle.
  • the battery system when it is detected that at least two battery packs belong to the same battery system, the battery system is used for power supply; when it is detected that at least two battery packs do not belong to the same battery system, the battery system is not used for power supply, thereby ensuring electric power.
  • the power supply performance of the car when it is detected that at least two battery packs belong to the same battery system, the battery system is used for power supply; when it is detected that at least two battery packs do not belong to the same battery system, the battery system is not used for power supply, thereby ensuring electric power.
  • the power supply performance of the car when it is detected that at least two battery packs belong to the same battery system.
  • step 720 may include: acquiring an identification code of at least two battery packs, wherein each battery pack corresponds to an identification code; determining whether an identifier corresponding to the at least two battery packs matches; In the case that the identification codes corresponding to the two battery packs match, it is determined that at least two battery packs belong to the same battery system; if the identification codes corresponding to the at least two battery packs do not match, it is determined that at least two battery packs do not belong to the same battery system.
  • each battery pack may have a unique identification code corresponding thereto, and the identification code may be, for example, an identification code randomly generated by a virtual random number generator.
  • the obtaining the identification code of the at least two battery packs may include: communicating with a battery management system (BMS) of the battery to obtain an identification code of the battery pack.
  • BMS battery management system
  • the identification code of the battery pack can be obtained by other detection means, which is not specifically limited in the embodiment of the present invention.
  • determining whether the identification codes corresponding to the at least two battery packs match may include: comparing the identification codes of the at least two battery packs with pre-stored mutually matching identification codes to determine the at least two batteries. Whether the identifier corresponding to the packet matches. Alternatively, based on the obtained identification code, a preset matching algorithm may be used to calculate whether the two identification codes match.
  • the method of FIG. 7 may further include: determining whether a current state of the battery system is suitable for powering the electric vehicle; step 730 may include: matching the identification codes of the at least two battery packs, and the battery system The current state of operation is suitable for powering an electric vehicle, and the control battery system supplies power to the electric vehicle.
  • the electric vehicle may be provided with a control device, and each battery pack in the battery system may have an identification code (which may be a unique identification code) corresponding thereto, and the circuit pack into the circuit of the electric vehicle may be provided with
  • the switch for example, a Metal Oxide Semiconductor (MOS) tube
  • the battery pack, the switch, and the control device are connected in series to form a loop.
  • the control device may first identify the identification code of each battery pack.
  • the control device can communicate with the BMS in the battery system to obtain an identification code for each battery pack.
  • the control device can judge whether the two battery packs satisfy two conditions at the same time.
  • Condition 1 Whether the two battery packs belong to the same battery system
  • Condition 2 Whether the state of the battery system is suitable for powering the electric vehicle (or whether the state of the battery system is suitable for discharging). If the above two conditions are satisfied at the same time, the switch is closed, and the battery system is controlled to supply power to the electric vehicle; if the above two conditions are not satisfied at the same time, the switch is kept in an open state.
  • determining whether the current state of the battery system is suitable for powering the electric vehicle may include: acquiring an open circuit voltage of the single battery in the battery system, and determining whether the single battery in the battery system is shorted In the case where the open circuit voltage of the single battery in the battery system is greater than a preset threshold, and the single cells in the battery system are not short-circuited, it is determined that the current state of the battery system is suitable for powering the electric vehicle; otherwise, determining the battery The current state of the system is not suitable for powering electric vehicles.
  • the preset threshold can be, for example, 2.0V or 2.2V.
  • FIG. 8 is a schematic flow chart of a control method of a battery system according to an embodiment of the present invention. It should be understood that the processing steps or operations illustrated in FIG. 8 are merely examples, and that other operations of the present invention or variations of the various operations in FIG. 8 may be performed. Moreover, the various steps in FIG. 8 may be performed in a different order than that presented in FIG. 8, and it is possible that not all operations in FIG. 8 are to be performed.
  • the method of Figure 8 can be performed by a controller in a charging device, which can be, for example, a microcontroller, microprocessor, PLC, PGA, ASIC, or capable of receiving signals from various sensors, performing logical operations, and transmitting signals To the controller of each component; or the controller may also include a wireless communication module, that is, the identification code of the battery pack is acquired through the wireless communication module, and the wireless communication module may be, for example, a wireless communication that supports GPRS and short message dual channel transmission data.
  • the module or may be a wireless communication module that supports multi-center data communication.
  • the method of FIG. 8 includes:
  • the battery system After the battery system is detached from the battery base of the electric vehicle, determine that the battery system is in a connected state with the charging device, wherein the battery system includes at least two battery packs.
  • an identification code can be set for each battery pack by detecting that the identification codes of at least two battery packs are Do not match each other to determine whether the at least two battery packs belong to the same battery system.
  • the battery system when at least two battery packs are detected to belong to the same battery system, the battery system is charged; when it is detected that at least two battery packs do not belong to the same battery system, the battery system is not charged, so that it can remain Consistency of parameters of the battery pack of the same battery system.
  • step 820 may include: acquiring an identification code of at least two battery packs, wherein each battery pack corresponds to an identification code; determining whether an identifier corresponding to the at least two battery packs matches; In the case that the identification codes corresponding to the two battery packs match, it is determined that at least two battery packs belong to the same battery system; if the identification codes corresponding to the at least two battery packs do not match, it is determined that at least two battery packs do not belong to the same battery system.
  • the obtaining the identification code of the at least two battery packs may include: communicating with the BMS of the battery to obtain an identification code of the battery pack.
  • the identification code of the battery pack may be obtained by other detecting means.
  • determining whether the identification codes corresponding to the at least two battery packs match may include: comparing the identification codes of the at least two battery packs with pre-stored mutually matching identification codes to determine the at least two batteries. Whether the identifier corresponding to the packet matches. Alternatively, based on the obtained identification code, a preset matching algorithm may be used to calculate whether the two identification codes match.
  • the charging method of FIG. 8 may further include: determining whether a current state of the battery system is suitable for charging; and controlling the charging device to charge the battery system if the identification codes of the at least two battery packs match And including: controlling the charging device to charge the battery system in a case where the identification codes of the at least two battery packs match and the current state of the battery system is suitable for charging.
  • the determining whether the current state of the battery system is suitable for charging may include: acquiring an open circuit voltage of the single battery in the battery system, and determining whether the single battery in the battery system is short-circuited; If the open circuit voltage of the single battery in the system is less than a preset threshold, and the single cells in the battery system are not short-circuited, it is determined that the current state of the battery system is suitable for charging; otherwise, determining the current state of the battery system is not suitable Charging.
  • the preset threshold can be, for example, 2.4V or 2.5V.
  • the charging device may be provided with a controller, and each battery pack in the battery system may have The corresponding identification code (which may be a unique identification code) may be provided with a switch (for example, a MOS tube) in the circuit of the battery pack connected to the charging device, and the battery pack, the switch and the controller are connected in series to each other to form a loop.
  • the controller in the charging device may first identify the identification code of each battery pack. For example, the controller can communicate with the BMS in the battery system to obtain an identification code for each battery pack. Then, the controller can judge whether the two battery packs satisfy two conditions at the same time.
  • Condition 1 Whether the two battery packs belong to the same battery system
  • Condition 2 Whether the state of the battery system is suitable for charging. If the above two conditions are satisfied at the same time, the switch is closed and the battery system is charged by the charging device; if the above two conditions are not satisfied at the same time, the switch is kept open.
  • Fig. 9 is a schematic configuration diagram of a control device of a battery system according to an embodiment of the present invention.
  • the control device 900 of Figure 9 includes:
  • a first determining module 910 configured to determine that the battery system is in a connected state with a battery base of the electric vehicle, wherein the electric vehicle is detachably connected to the battery system by the battery base, the battery system includes at least two batteries package;
  • the second determining module 920 is configured to determine whether the at least two battery packs belong to the same battery system:
  • the control module 930 is configured to control the battery system to supply power to the electric vehicle if the at least two battery packs belong to the same battery system.
  • the battery system when it is detected that at least two battery packs belong to the same battery system, the battery system is used for power supply; when it is detected that at least two battery packs do not belong to the same battery system, the battery system is not used for power supply, and the electric vehicle is improved. Power supply performance.
  • the second determining module 920 is specifically configured to acquire an identifier of the at least two battery packs, where each battery pack corresponds to an identifier; and the at least two battery packs are determined. Whether the corresponding identification codes match; if the identification codes corresponding to the at least two battery packs match, determining that the at least two battery packs belong to the same battery system; the identification codes corresponding to the at least two battery packs are not In the case of matching, it is determined that the at least two battery packs do not belong to the same battery system.
  • control apparatus 900 further includes: a third determining module, configured to determine whether a current state of the battery system is suitable for powering the electric vehicle; and the control module Specifically, when the identification codes of the at least two battery packs match, and the current state of the battery system is suitable for powering the electric vehicle, the battery system is controlled to supply power to the electric vehicle.
  • the third determining module is specifically configured to acquire an open circuit voltage of a single battery in the battery system, and determine whether a single battery in the battery system is short-circuited; If the open circuit voltage of the single cells in the system is greater than a preset threshold, and the single cells in the battery system are not short-circuited, determining that the current state of the battery system is suitable for powering the electric vehicle; otherwise Determining that the current state of the battery system is not suitable for powering the electric vehicle.
  • the preset threshold is 2.0V or 2.2V.
  • Fig. 10 is a schematic configuration diagram of a control device of a battery system according to an embodiment of the present invention.
  • the control device 1000 of FIG. 10 includes:
  • the memory 1010 is configured to store a program.
  • the processor 1020 is configured to execute a program in the memory 1010. When the program is executed, the processor 1020 determines that the battery system is in a connected state with a battery base of the electric vehicle, and the electric vehicle passes through the battery base and the The battery system is detachably connected, the battery system includes at least two battery packs; determining whether the at least two battery packs belong to the same battery system; and in the case where the at least two battery packs belong to the same battery system, the control station The battery system supplies power to the electric vehicle.
  • the battery system when it is detected that at least two battery packs belong to the same battery system, the battery system is used for power supply; when it is detected that at least two battery packs do not belong to the same battery system, the battery system is not used for power supply, and the electric vehicle is improved. Power supply performance.
  • the processor 1020 is specifically configured to acquire an identifier of the at least two battery packs, where each battery pack corresponds to an identification code, and determine that the at least two battery packs correspond to Whether the identification codes match; determining that the at least two battery packs belong to the same battery system if the identification codes corresponding to the at least two battery packs match; the identification codes corresponding to the at least two battery packs do not match In the case, it is determined that the at least two battery packs do not belong to the same battery system.
  • the processor 1020 is further configured to determine whether a current state of the battery system is suitable for powering the electric vehicle; the processor 1020 is specifically configured to be in the at least two batteries The battery system is controlled to power the electric vehicle if the identification codes of the packages match and the current state of the battery system is adapted to power the electric vehicle.
  • the processor 1020 is specifically configured to acquire an open circuit voltage of a single battery in the battery system, and determine whether a single battery in the battery system is short-circuited; Determining that the current state of the battery system is suitable for powering the electric vehicle, wherein the open circuit voltage of the single battery in the battery system is greater than a preset threshold, and the single cells in the battery system are not short-circuited Otherwise, it is determined that the current state of the battery system is not suitable for powering the electric vehicle.
  • the preset threshold is 2.0V or 2.2V.
  • Fig. 11 is a schematic structural view of a charging device according to an embodiment of the present invention.
  • the charging device 1100 of FIG. 11 includes:
  • the first determining module 1110 is configured to determine that the battery system is in a connected state with the charging device after the battery system is detached from the battery base of the electric vehicle, wherein the battery system includes at least two battery packs;
  • the second determining module 1120 is configured to determine whether the at least two battery packs belong to the same battery system:
  • the control module 1130 is configured to control the charging device to charge the battery system if the at least two battery packs belong to the same battery system.
  • the battery system when at least two battery packs are detected to belong to the same battery system, the battery system is charged; when it is detected that at least two battery packs do not belong to the same battery system, the battery system is not charged, so that it can remain Consistency of parameters of the battery pack of the same battery system.
  • the second determining module 1120 is specifically configured to acquire an identifier of the at least two battery packs, where each battery pack corresponds to an identifier; and the at least two battery packs are determined. Whether the corresponding identification codes match; if the identification codes corresponding to the at least two battery packs match, determining that the at least two battery packs belong to the same battery system; the identification codes corresponding to the at least two battery packs are not In the case of matching, it is determined that the at least two battery packs do not belong to the same battery system.
  • the charging apparatus 1100 further includes: a third determining module, configured to determine whether a current state of the battery system is suitable for charging; the control module is specifically configured to be in the at least two In the case where the identification codes of the battery packs match and the current state of the battery system is suitable for charging, the charging device is controlled to charge the battery system.
  • the third determining module is specifically configured to acquire an open circuit voltage of a single battery in the battery system, and determine whether a single battery in the battery system is short-circuited; If the open circuit voltage of the single cells in the system is less than a preset threshold, and the single cells in the battery system are not short-circuited, it is determined that the current state of the battery system is suitable for charging; otherwise, The current state of the battery system is not suitable for charging.
  • the preset threshold is 2.4V or 2.5V.
  • Fig. 12 is a schematic structural view of a charging device according to an embodiment of the present invention.
  • the charging device 1200 of Figure 12 includes:
  • the memory 1210 is configured to store a program.
  • the processor 1220 is configured to execute a program in the memory 1210. When the program is executed, the processor 1220 determines that the battery system is connected to the charging device after the battery system is detached from the battery base of the electric vehicle.
  • the battery system includes at least two battery packs; determining whether the at least two battery packs belong to the same battery system; and in the case where the at least two battery packs belong to the same battery system, controlling the charging device to The battery system is charged.
  • the battery system when at least two battery packs are detected to belong to the same battery system, the battery system is charged; when it is detected that at least two battery packs do not belong to the same battery system, the battery system is not charged, so that it can remain Consistency of parameters of the battery pack of the same battery system.
  • the processor 1220 is specifically configured to acquire an identifier of the at least two battery packs, where each battery pack corresponds to an identifier; and determine, corresponding to the at least two battery packs. Whether the identification codes match; determining that the at least two battery packs belong to the same battery system if the identification codes corresponding to the at least two battery packs match; the identification codes corresponding to the at least two battery packs do not match In the case, it is determined that the at least two battery packs do not belong to the same battery system.
  • the processor 1220 is further configured to determine whether a current state of the battery system is suitable for charging; the processor 1220 is specifically configured to match an identifier of the at least two battery packs. And in the case where the current state of the battery system is suitable for charging, the charging device is controlled to charge the battery system.
  • the processor 1220 is specifically configured to acquire an open circuit voltage of a single battery in the battery system, and determine whether a single battery in the battery system is short-circuited; Determining that the current state of the battery system is suitable for charging if the open circuit voltage of the single cell in the battery cell is less than a preset threshold, and the single cells in the battery system are not short-circuited; otherwise, determining the battery system The current state is not suitable for charging.
  • the preset threshold is 2.4V or 2.5V.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente invention concerne un procédé de commande et de charge de système de batterie, un système de batterie et un véhicule électrique, le système de batterie comportant: au moins deux blocs-batteries, chacun desdits au moins deux blocs-batteries étant connecté de manière amovible à un socle de batterie d'un véhicule électrique, et chaque bloc-batterie correspondant à un code d'identification, et les codes d'identification des blocs-batteries appartenant au même système de batterie correspondent les uns aux autres; et un système de gestion de batterie, utilisé pour communiquer avec le véhicule électrique lorsque le système de batterie est connecté au véhicule électrique, les codes d'identification correspondant aux dits au moins deux blocs-batteries étant transmis au véhicule électrique, de sorte que le véhicule électrique puisse déterminer si lesdits au moins deux blocs-batteries appartiennent au même système de batterie. Le bloc-batterie du système de batterie est connecté de manière amovible au socle de batterie, et un utilisateur peut retirer le bloc-batterie du véhicule électrique, permettant de charger facilement le bloc-batterie.
PCT/CN2016/110041 2016-04-29 2016-12-15 Procédé de commande et de charge de système de batterie, système de batterie et véhicule électrique WO2017185768A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201620385338.8U CN205646898U (zh) 2016-04-29 2016-04-29 便携式电池系统及电动汽车
CN201610282296.XA CN105871011B (zh) 2016-04-29 2016-04-29 电池系统的控制和充电方法、电池系统以及电动汽车
CN201610282296.X 2016-04-29
CN201620385338.8 2016-04-29

Publications (1)

Publication Number Publication Date
WO2017185768A1 true WO2017185768A1 (fr) 2017-11-02

Family

ID=60161750

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/110041 WO2017185768A1 (fr) 2016-04-29 2016-12-15 Procédé de commande et de charge de système de batterie, système de batterie et véhicule électrique

Country Status (1)

Country Link
WO (1) WO2017185768A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112776663A (zh) * 2021-02-25 2021-05-11 重庆金康赛力斯新能源汽车设计院有限公司 电动汽车供电方法、装置和电子设备
CN114678563A (zh) * 2022-03-22 2022-06-28 浙江天能氢能源科技有限公司 一种便携式空冷燃料电池系统

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101465553A (zh) * 2007-12-18 2009-06-24 升御企业股份有限公司 多能源管理系统、装置及应用其中的方法
CN102376988A (zh) * 2010-08-10 2012-03-14 华创车电技术中心股份有限公司 电池组模块及其能量管理系统与方法
CN103098258A (zh) * 2010-09-16 2013-05-08 索尼公司 电池组以及检查电池组内二次电池的存储状态的方法
CN104103865A (zh) * 2014-07-22 2014-10-15 合肥国轩高科动力能源股份公司 纯电动汽车的增程电池组系统
CN105024420A (zh) * 2014-04-28 2015-11-04 三星电子株式会社 电池控制设备、电池包和电池控制方法
CN105172610A (zh) * 2015-09-29 2015-12-23 上海大众汽车有限公司 电动车的充换电架构及方法
CN105871011A (zh) * 2016-04-29 2016-08-17 北京车和家信息技术有限责任公司 电池系统的控制和充电方法、电池系统以及电动汽车
CN205646898U (zh) * 2016-04-29 2016-10-12 北京车和家信息技术有限责任公司 便携式电池系统及电动汽车

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101465553A (zh) * 2007-12-18 2009-06-24 升御企业股份有限公司 多能源管理系统、装置及应用其中的方法
CN102376988A (zh) * 2010-08-10 2012-03-14 华创车电技术中心股份有限公司 电池组模块及其能量管理系统与方法
CN103098258A (zh) * 2010-09-16 2013-05-08 索尼公司 电池组以及检查电池组内二次电池的存储状态的方法
CN105024420A (zh) * 2014-04-28 2015-11-04 三星电子株式会社 电池控制设备、电池包和电池控制方法
CN104103865A (zh) * 2014-07-22 2014-10-15 合肥国轩高科动力能源股份公司 纯电动汽车的增程电池组系统
CN105172610A (zh) * 2015-09-29 2015-12-23 上海大众汽车有限公司 电动车的充换电架构及方法
CN105871011A (zh) * 2016-04-29 2016-08-17 北京车和家信息技术有限责任公司 电池系统的控制和充电方法、电池系统以及电动汽车
CN205646898U (zh) * 2016-04-29 2016-10-12 北京车和家信息技术有限责任公司 便携式电池系统及电动汽车

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112776663A (zh) * 2021-02-25 2021-05-11 重庆金康赛力斯新能源汽车设计院有限公司 电动汽车供电方法、装置和电子设备
CN114678563A (zh) * 2022-03-22 2022-06-28 浙江天能氢能源科技有限公司 一种便携式空冷燃料电池系统
CN114678563B (zh) * 2022-03-22 2023-11-24 浙江天能氢能源科技有限公司 一种便携式空冷燃料电池系统

Similar Documents

Publication Publication Date Title
US9889751B2 (en) Battery management apparatus and method
US7679325B2 (en) Battery management system and driving method for cutting off and coupling battery module from/to external device
CN102520366B (zh) 电动车电池安全与健康评估系统及其方法
US9182450B2 (en) System for automatically recognizing battery characteristic, battery information storage device for the same, and method for automatically optimizing battery management device by using the same
CN102623768B (zh) 一种多电池充电方法、装置以及一种手持移动终端
KR20110081098A (ko) 배터리 제어 장치 및 방법
US20120262110A1 (en) Charging module and rechargeable battery assembly for electric vehicle
CN106696707B (zh) 电动汽车的动力电池包的上下电控制方法和系统
US20190061652A1 (en) Battery pack charging system
CN104488133A (zh) 用于感测电池的鼓胀的设备和方法
CN105871011B (zh) 电池系统的控制和充电方法、电池系统以及电动汽车
WO2017185768A1 (fr) Procédé de commande et de charge de système de batterie, système de batterie et véhicule électrique
KR102441469B1 (ko) 배터리 충전 방법 및 배터리 충전 장치
US9798609B2 (en) Battery management unit for preventing performance of erroneous control algorithm from communication error
KR101646342B1 (ko) 고효율 충전 장치 및 방법
KR101549173B1 (ko) 배터리 충전량 제어 장치 및 방법
JP2017117637A (ja) 電源装置
CN202840644U (zh) 一种充电系统
CN205646898U (zh) 便携式电池系统及电动汽车
KR102644605B1 (ko) 전력 변환 장치의 전원 공급 제어 방법 및 전력 변환 장치
JP2021029079A (ja) 充電制御装置および充電制御方法
CN202256634U (zh) 多功能电池充放电检测装置
CN106515479B (zh) 一种电动汽车蓄电池组在线容量优化装置
KR102644606B1 (ko) 충전 방법 및 전력 변환 장치
Wager et al. Battery cell balance of electric vehicles under fast-DC charging

Legal Events

Date Code Title Description
DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16900273

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16900273

Country of ref document: EP

Kind code of ref document: A1