Battery cell rapid repair system, method and device

Abstract

The present invention provides a rapid repair system, method, and device for battery cells, relating to the technical field of new energy vehicles. The system includes: a battery control unit, a battery cell assembly, and a supercapacitor, wherein the battery control unit is connected to the battery cell assembly and the supercapacitor, respectively. The battery control unit is used to detect faulty cells in the battery cell assembly, classify the faulty cells, determine the fault type, and execute a corresponding switch control strategy based on the fault type to replace or repair the faulty cells. The fault types include: common faults such as cell overvoltage or cell undervoltage, and serious faults such as cell hardware damage. The supercapacitor is used to quickly charge and discharge the faulty cells when the fault type is a common fault, so that the faulty cells can return to normal function. The present invention can significantly improve the repair efficiency of battery cell faults.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to a rapid repair system, method and device for battery cells. Background Art

[0002] The power battery pack or battery module of a new energy vehicle is composed of multiple battery cells connected in series. When any of the battery cells in series fails or is damaged, the entire battery pack or battery module will become unusable, which will further cause the vehicle to break down and be unable to drive normally. At present, relevant technologies have proposed that since quick repairs cannot be performed on the road, the vehicle needs to be towed to a specific maintenance station to replace the entire battery pack or battery module, or the battery box needs to be disassembled to find the damaged battery cell for repair or replacement. However, this solution cannot be completed in a short time, so it will affect transportation efficiency and incur towing costs. Summary of the Invention

[0003] In view of this, an object of the present invention is to provide a system, method and device for quickly repairing battery cells, which can significantly improve the repair efficiency when a battery cell fails.

[0004] In a first aspect, an embodiment of the present invention provides a rapid repair system for battery cells, the system comprising: a battery control unit, a cell assembly and a supercapacitor, the battery control unit being connected to the cell assembly and the supercapacitor respectively; wherein the battery control unit is used to detect faulty cells in the cell assembly, and classify the faults of the faulty cells, determine the fault type, and execute a corresponding switch control strategy according to the fault type to replace or repair the faulty cells, wherein the fault types include: common faults of cell overvoltage or cell undervoltage, and serious faults of cell hardware damage; the supercapacitor is used to quickly charge and discharge the faulty cells to repair them when the fault type of the faulty cells is a common fault, so that the faulty cells can resume normal function.

[0005] In one embodiment, the battery cell collection includes: a working battery cell collection and a spare battery cell; wherein the working battery cell collection includes multiple working sub-battery cells, and each working sub-battery cell is disconnected from the spare battery cell and the supercapacitor under normal working conditions, and is respectively connected to the positive pole of the power supply, the negative pole of the power supply and the battery control unit for normal driving of the vehicle; the spare battery cell is used to replace the working sub-battery cell when the fault type of any working sub-battery cell is a serious fault.

[0006] In one embodiment, the working cell set includes: a working cell electronic switch matrix, the working cell electronic switch matrix includes: a first working cell electronic switch and a second working cell electronic switch; wherein, the first working cell electronic switch is a single-pole double-throw switch, including: a common end, a normally open contact and a normally closed contact, the normally open contact is connected to the positive pole of the corresponding working sub-cell, the normally closed contact is connected to the negative pole of the corresponding working sub-cell, and the common end is arranged between the normally open contact and the normally closed contact; the second working cell electronic switch is a double-pole single-throw switch, and the double-pole single-throw switch is respectively connected to the positive pole, negative pole and supercapacitor of the corresponding working sub-cell.

[0007] In one embodiment, the spare battery cell includes: a spare battery cell electronic switch matrix; wherein the spare battery cell electronic switch matrix includes: a first spare battery cell switch, a second spare battery cell switch and a third spare battery cell switch, and the spare battery cell electronic switch matrix is ​​used to control the connection state of the spare battery cell.

[0008] In one embodiment, the supercapacitor includes a fast charge and discharge switch, wherein the fast charge and discharge switch is used to connect the supercapacitor to the faulty cell when the switch is closed, so as to perform fast charging or fast discharging processing on the faulty cell.

[0009] In one embodiment, the system further includes: a display screen; wherein the display screen is used to locate and display the position of the faulty battery cell according to the faulty battery cell position information sent by the battery control unit.

[0010] In a second aspect, an embodiment of the present invention provides a method for quickly repairing a battery cell, which is applied to a quick repair system for a battery cell. The method includes: performing fault detection and processing on each working sub-cell in a working cell set by a battery control unit, and judging the fault type of the faulty cell when a faulty cell is detected; executing a corresponding switch control strategy according to the fault type, switching the working states of the supercapacitor and the spare cell by adjusting the connectivity state of each switch, so that the supercapacitor repairs the faulty cell, or replaces the faulty cell with a spare cell, and sending the faulty cell location information to a display screen for positioning display.

[0011] In one embodiment, a corresponding switch control strategy is executed according to the fault type, and the working states of the supercapacitor and the spare battery cell are switched by adjusting the connectivity state of each switch, so that the supercapacitor repairs the faulty battery cell, or the faulty battery cell is replaced with the spare battery cell. The steps include: when the working sub-battery cell of the battery cell is in a normal working state, the first working cell electronic switch of the working sub-battery cell is set to a normally open contact, the second working cell electronic switch is disconnected, the first spare cell switch of the spare battery cell is closed, the second spare cell switch and the third spare cell switch are disconnected, and the fast charge and discharge switch of the supercapacitor is disconnected; when the fault type is a normal fault, the first working cell electronic switch of each working sub-battery cell is switched to a common end, the second working cell electronic switch of the working sub-cell with the fault is connected, and the fast charge and discharge switch of the supercapacitor is controlled to be connected; when the fault type is a serious fault, the first working cell electronic switch of the working sub-cell with the fault is switched to a normally closed contact, and the second spare cell switch of the spare battery cell is controlled to be closed, and the first spare cell switch is disconnected.

[0012] In one embodiment, the method further includes: when a fault is detected in the spare battery cell, closing a third spare battery cell switch of the spare battery cell and controlling the fast charge and discharge switch of the supercapacitor to be connected.

[0013] In a third aspect, an embodiment of the present invention further provides a rapid repair device for a battery cell, which is applied to a rapid repair system for a battery cell. The device includes: a fault detection module, which performs fault detection and processing on each working sub-cell in a working cell set through a battery control unit, and judges the fault type of the faulty cell when a faulty cell is detected; a rapid repair module, which executes a corresponding switch control strategy according to the fault type, switches the working status of the supercapacitor and the spare cell by adjusting the connectivity status of each switch, so that the supercapacitor repairs the faulty cell, or replaces the faulty cell with a spare cell, and sends the location information of the faulty cell to a display screen for positioning display.

[0014] In a fourth aspect, an embodiment of the present invention further provides an electronic device comprising a processor and a memory, wherein the memory stores computer-executable instructions that can be executed by the processor, and the processor executes the computer-executable instructions to implement any one of the methods provided in the second aspect.

[0015] In a fifth aspect, an embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions. When the computer-executable instructions are called and executed by a processor, the computer-executable instructions prompt the processor to implement any one of the methods provided in the second aspect.

[0016] The embodiments of the present invention bring the following beneficial effects:

[0017] The embodiment of the present invention provides a rapid repair system, method and device for battery cells, which include: a battery control unit, a battery cell assembly and a supercapacitor, wherein the battery control unit is connected to the battery cell assembly and the supercapacitor respectively; wherein the battery control unit is used to detect faulty batteries in the battery cell assembly, classify the faulty batteries, determine the fault type, and execute the corresponding switch control strategy according to the fault type to replace or repair the faulty batteries, wherein the fault types include: common faults such as battery cell overvoltage or battery cell undervoltage, and serious faults such as battery cell hardware damage; the supercapacitor is used to replace or repair the faulty batteries when the fault type of the faulty batteries is a common fault. The faulty battery cell can be quickly charged and discharged for repair so that the faulty battery cell can return to normal function. The embodiment of the present invention can accurately find the faulty battery cell through the battery control unit BMU. The BMU controls the electronic switch matrix and uses supercapacitors to repair the faulty battery cell, or replaces the faulty battery cell with a spare battery cell, so that the battery can work normally and the vehicle can continue to travel, thereby not affecting the transportation efficiency. At the same time, the battery control unit can automatically upload the faulty battery cell number to the display screen to accurately locate the fault location. After the vehicle transportation is completed, the user can go to the maintenance station for maintenance in his spare time. This is more convenient and does not affect transportation, while saving the cost of towing.

[0018] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purposes and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic structural diagram of a rapid repair system for a battery cell provided by an embodiment of the present invention;

[0022] Figure 2 A schematic flow chart of a method for quickly repairing a battery cell provided by an embodiment of the present invention;

[0023] Figure 3A schematic structural diagram of a rapid repair device for a battery cell provided by an embodiment of the present invention;

[0024] Figure 4 A schematic structural diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] At present, the power battery pack or battery module of new energy vehicles is composed of multiple battery cells connected in series. When any one of the battery cells connected in series fails or is damaged, the entire battery pack or battery module will be unusable, which will further cause the car to break down and cannot drive normally. At present, relevant technologies have proposed that since it is impossible to perform quick repairs on the road, the vehicle needs to be towed to a specific maintenance station to replace the entire battery pack or battery module, or the battery box needs to be disassembled to find the damaged battery cell for repair or replacement. However, this solution cannot be completed in a short time, which will affect transportation efficiency and generate towing fees. Based on this, the battery cell provided by the present invention is The rapid repair system, method and device can accurately find the faulty cell through the battery control unit when any one of the battery cells connected in series fails, control the electronic switch matrix, and use the supercapacitor to repair the faulty cell, or replace the faulty cell with a spare cell, so that the battery can work normally and the vehicle can continue to drive, thereby not affecting the transportation efficiency. At the same time, the battery control unit can automatically upload the faulty cell number to the display screen to accurately locate the fault location. After the vehicle transportation is completed, the user can go to the maintenance station for repairs in his spare time, which is more convenient and does not affect transportation while saving the cost of towing.

[0027] To facilitate understanding of this embodiment, a rapid repair method for a battery cell disclosed in an embodiment of the present invention is first introduced in detail. The method is applied to a rapid repair system for a battery cell. To facilitate understanding of the rapid repair system for a battery cell, an embodiment of the present invention provides a structural schematic diagram of a rapid repair system for a battery cell, as shown in FIG. Figure 1 As shown, the system includes: a battery control unit (ie, control unit BMU), a battery cell assembly and a supercapacitor, and the battery control unit is connected to the battery cell assembly and the supercapacitor respectively.

[0028] The battery control unit is used to detect faulty cells in a cell set, classify the faulty cells, and determine the fault type. Based on the fault type, the battery control unit executes a corresponding switch control strategy to replace or repair the faulty cells. The fault types include common faults such as cell overvoltage or cell undervoltage, and serious faults such as cell hardware damage. The supercapacitor is used to quickly charge and discharge the faulty cells to restore normal function when the fault type of the faulty cells is a common fault. The cell set includes a working cell set (i.e., cell 1, cell 2...cell N) and a spare cell. The working cell set includes multiple working sub-cells. Under normal operating conditions, each working sub-cell is disconnected from the spare cell and the supercapacitor, and is respectively connected to the positive and negative power poles and the battery control unit for normal vehicle operation. The spare cell is used to replace the working sub-cell when the fault type of any working sub-cell is a serious fault.

[0029] That is to say, the battery control unit BMU accurately finds the faulty cell and classifies the fault as either a common fault such as overvoltage or undervoltage, or a serious fault caused by hardware damage, and transmits the number of the faulty cell to the display screen through the wiring harness. The display screen accurately displays the location of the faulty cell. If the cell is a common fault such as overvoltage or undervoltage, the control unit BMU controls the electronic switch matrix, accurately controls the disconnection and connection of the electronic switch, and uses the fast charging and discharging characteristics of the supercapacitor to charge and discharge the faulty cell to restore the battery to normal function; if the cell is a serious fault caused by hardware damage, the control unit BMU controls the electronic switch matrix, accurately controls the disconnection and connection of the electronic switch, and adds a spare cell to the circuit to replace the faulty cell to restore the battery to normal function. In addition, the control unit BMU can also monitor the status of the spare cell. If the spare cell is overcharged or over-discharged, the control unit BMU controls the electronic switch matrix, accurately controls the disconnection and connection of the electronic switch, and uses the fast charging and discharging characteristics of the supercapacitor to charge and discharge the spare cell to restore the spare cell to normal.

[0030] In addition, the system also includes a display screen, which can be used to locate and display the position of the faulty battery cell based on the faulty battery cell location information sent by the battery control unit. In actual application, if the battery cell 3 is faulty, the control unit will upload the number of the BMU faulty battery cell 3 to the display screen, and accurately display the position of the faulty battery cell 3 on the display screen. After the vehicle transportation is completed, the driver can drive the vehicle to the maintenance station, find the faulty battery cell 3 through the prompts on the display screen, and repair or replace the faulty battery cell 3, which improves transportation efficiency and saves towing costs.

[0031] Furthermore, the working cell set includes: a working cell electronic switch matrix, the working cell electronic switch matrix includes: a first working cell electronic switch and a second working cell electronic switch, wherein the first working cell electronic switch is a single-pole double-throw switch, including: a common end, a normally open contact and a normally closed contact, the normally open contact is connected to the positive pole of the corresponding working sub-cell, the normally closed contact is connected to the negative pole of the corresponding working sub-cell, and the common end is arranged between the normally open contact and the normally closed contact; the second working cell electronic switch is a double-pole single-throw switch, and the double-pole single-throw switch is respectively connected to the positive pole, negative pole and supercapacitor of the corresponding working sub-cell. Taking cell 1 as an example, the first working cell electronic switch is switch 1, the common end is 1c, the normally open contact is 1a, and the normally closed contact is 1b, and the second working cell electronic switch is switch 11.

[0032] The spare battery cell includes: a spare battery cell electronic switch matrix, wherein the spare battery cell electronic switch matrix includes: a first spare battery cell switch, a second spare battery cell switch and a third spare battery cell switch, and the spare battery cell electronic switch matrix is ​​used to control the connection state of the spare battery cell, wherein the first spare battery cell switch is switch N+1, the second spare battery cell switch is switch N+2, and the third spare battery cell switch is switch N+3.

[0033] The supercapacitor includes a fast charge and discharge switch, wherein the fast charge and discharge switch is switch N+4, and the fast charge and discharge switch is used to connect the supercapacitor to the faulty cell when the switch is closed to perform fast charging or fast discharging on the faulty cell.

[0034] based on Figure 1 The structure diagram of the rapid repair system of the battery cell shown in FIG. 1 is a schematic diagram of the structure of the rapid repair system of the battery cell shown in FIG. 1 , and the embodiment of the present invention introduces the rapid repair method of the battery cell in detail. Figure 2 The flowchart of a rapid repair method for a battery cell is shown, and the method mainly includes the following steps S202 to S204:

[0035] In step S202 , the battery control unit performs fault detection on each working sub-cell in the working cell set, and when a faulty cell is detected, determines the fault type of the faulty cell.

[0036] Step S204, executing the corresponding switch control strategy according to the fault type, by adjusting the connection state of each switch, switching the working state of the supercapacitor and the spare battery cell, so that the supercapacitor can repair the faulty battery cell, or replace the faulty battery cell with the spare battery cell, and sending the position information of the faulty battery cell to the display screen for positioning display. In one embodiment, the switch control strategy is specifically as follows (1) to (4):

[0037] (1) When the working sub-cell of the battery is in normal working state, the first working sub-cell electronic switch is set to the normally open contact, the second working sub-cell electronic switch is disconnected, the first backup sub-cell switch is closed, the second backup sub-cell switch and the third backup sub-cell switch are disconnected, and the fast charge and discharge switch of the supercapacitor is disconnected. That is to say, in the normal driving switch state, the control unit BMU accurately controls the electronic switch matrix, connects switch 1 to position 1a, switch 2 to position 2a, switch 3 to position 3a, switch 4 to position 4a... switch N to position Na, switch N+1 is connected, and cell 1, cell 2, cell 3, cell 4... cell N are connected in series. The battery works normally and can be discharged normally.

[0038] (2) When the fault type is a common fault, the first working cell electronic switch of each working sub-cell is switched to the common end, the second working cell electronic switch of the working sub-cell with the fault is connected, and the fast charge and discharge switch of the supercapacitor is controlled to be connected. That is to say, if a cell, such as cell 3, has a common fault of overvoltage or undervoltage, it is repaired by the supercapacitor. The control unit BMU accurately controls the electronic switch matrix, disconnects switch 1 to position 1c, disconnects switch 2 to position 2c, disconnects switch 3 to position 3c, disconnects switch 4 to position 4c... disconnects switch N to position Nc; closes switch 31, closes switch N+4, and uses the fast charge and discharge characteristics of the supercapacitor. If cell 3 is overvoltage, the excess power of cell 3 is released to the supercapacitor. If cell 3 is undervoltage, the power of the supercapacitor is supplemented to cell 3, so as to achieve the purpose of quickly repairing the cell.

[0039] (3) When the fault type is a serious fault, the first working cell electronic switch of the working sub-cell with the fault is switched to the normally closed contact, and the second spare cell switch of the spare cell is controlled to be closed, and the first spare cell switch is disconnected. That is to say, if a cell, such as cell 3, has a serious fault and cannot be repaired or used, it is replaced with a spare cell. The control unit BMU accurately controls the electronic switch matrix and connects switch 3 to position 3b, which is equivalent to skipping cell 3, disconnecting switch N+1 and connecting switch N+2, and connecting the spare cell in series to the circuit, thereby achieving the purpose of replacing the faulty cell and meeting the normal use of the battery.

[0040] (4) When a fault is detected in the spare cell, the third spare cell switch of the spare cell is closed, and the fast charge and discharge switch of the supercapacitor is controlled to be connected. That is to say, if the spare cell is overvoltage or undervoltage, the supercapacitor is used to repair it. The control unit BMU accurately controls the electronic switch matrix, turns on switch N+3 and turns on switch N+4, and uses the fast charge and discharge characteristics of the supercapacitor. If the spare cell is overvoltage, the excess power of the spare cell is released to the supercapacitor; if the spare cell is undervoltage, the power of the supercapacitor is supplemented to the spare cell, so as to achieve the purpose of quickly repairing the spare cell.

[0041] In summary, the present invention can utilize supercapacitors to charge and discharge and repair faulty battery cells. When a battery cell has a serious hardware failure, the faulty battery cell can be automatically disconnected and a spare battery cell can be automatically added to the circuit, allowing the vehicle to continue driving without having to immediately tow the vehicle to a specific repair station for repair, thereby improving transportation efficiency. After the transportation is completed, the vehicle can be driven to the repair station, saving the cost of towing.

[0042] Regarding the rapid repair method of the battery cell provided in the above embodiment, an embodiment of the present invention provides a rapid repair device for the battery cell, which is applied to the rapid repair system of the battery cell, see Figure 3 The structure diagram of a rapid repair device for a battery cell shown in FIG. 1 includes the following parts:

[0043] The fault detection module 302 performs fault detection processing on each working sub-cell in the working cell set through the battery control unit, and determines the fault type of the faulty cell when a faulty cell is detected.

[0044] The quick repair module 304 executes the corresponding switch control strategy according to the fault type, adjusts the connectivity status of each switch, switches the working status of the supercapacitor and the spare battery cell, so that the supercapacitor can repair the faulty battery cell, or replace the faulty battery cell with the spare battery cell, and sends the location information of the faulty battery cell to the display screen for positioning display.

[0045] The above-mentioned rapid repair device for battery cells provided in the embodiments of the present application can significantly improve the repair efficiency when a battery cell fails.

[0046] In one embodiment, when executing the corresponding switch control strategy according to the fault type, adjusting the connectivity status of each switch, switching the working status of the supercapacitor and the spare battery cell, so that the supercapacitor repairs the faulty battery cell, or replacing the faulty battery cell with the spare battery cell, the above-mentioned quick repair module 304 is also used for: when the working sub-battery cell is in a normal working state, the first working cell electronic switch of the working sub-battery cell is set to the normally open contact, the second working cell electronic switch is disconnected, the first spare cell switch of the spare battery cell is closed, the second spare cell switch and the third spare cell switch are disconnected, and the fast charge and discharge switch of the supercapacitor is disconnected; when the fault type is a normal fault, the first working cell electronic switch of each working sub-battery cell is switched to the common end, the second working cell electronic switch of the working sub-cell with the fault is connected, and the fast charge and discharge switch of the supercapacitor is controlled to be connected; when the fault type is a serious fault, the first working cell electronic switch of the working sub-cell with the fault is switched to the normally closed contact, and the second spare cell switch of the spare battery cell is controlled to be closed, and the first spare cell switch is disconnected.

[0047] In one embodiment, the rapid repair module 304 is further configured to: when a fault is detected in the spare battery cell, close the third spare battery cell switch of the spare battery cell and control the fast charge and discharge switch of the supercapacitor to connect.

[0048] The device provided in the embodiment of the present invention has the same implementation principle and technical effects as those in the aforementioned method embodiment. For the sake of brief description, for matters not mentioned in the device embodiment, reference can be made to the corresponding content in the aforementioned method embodiment.

[0049] An embodiment of the present invention provides an electronic device. Specifically, the electronic device includes a processor and a storage device. The storage device stores a computer program, and when the computer program is executed by the processor, it executes the method described in any one of the above-mentioned embodiments.

[0050] Figure 4 This is a structural diagram of an electronic device provided in an embodiment of the present invention. The electronic device 100 includes: a processor 40, a memory 41, a bus 42 and a communication interface 43. The processor 40, the communication interface 43 and the memory 41 are connected via the bus 42; the processor 40 is used to execute an executable module stored in the memory 41, such as a computer program.

[0051] Memory 41 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as at least one disk storage device. Communication between the system network element and at least one other network element is achieved through at least one communication interface 43 (which may be wired or wireless), and may utilize the Internet, a wide area network, a local area network, a metropolitan area network, or the like.

[0052] The bus 42 may be an ISA bus, a PCI bus, or an EISA bus. The bus may be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, Figure 4 Only one bidirectional arrow is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0053] Among them, the memory 41 is used to store programs, and the processor 40 executes the program after receiving the execution instruction. The method executed by the device for flow process definition disclosed in any embodiment of the above-mentioned embodiment of the present invention can be applied to the processor 40 or implemented by the processor 40.

[0054] Processor 40 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method may be completed by hardware integrated logic circuits or software instructions in processor 40. The above processor 40 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processing unit (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It may implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present invention may be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium well-known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory 41 , and the processor 40 reads the information in the memory 41 and completes the steps of the above method in combination with its hardware.

[0055] The computer program product of the readable storage medium provided in the embodiment of the present invention includes a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the method described in the previous method embodiment. The specific implementation can be referred to the previous method embodiment and will not be repeated here.

[0056] If the functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the portion that contributes to the prior art, or the portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, electronic device, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage media include various media that can store program code, such as USB flash drives, mobile hard drives, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical disks.

[0057] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-described embodiments within the technical scope disclosed by the present invention, or replace some of the technical features therein with equivalents. Such modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A method for quickly repairing a battery cell, characterized in that: The method is applied to a rapid repair system for battery cells, the system comprising: a battery control unit, a cell set and a supercapacitor, wherein the battery control unit is connected to the cell set and the supercapacitor respectively; wherein the battery control unit is used to detect faulty cells in the cell set, classify the faulty cells, determine the fault type, and execute a corresponding switch control strategy according to the fault type to replace or repair the faulty cells, wherein the fault type includes: common faults of cell overvoltage or cell undervoltage, and serious faults of cell hardware damage; the supercapacitor is used to replace or repair the faulty cells in the fault type When the fault type is a common fault, the faulty battery cell is quickly charged and discharged to repair it so that the faulty battery cell can resume normal function; the battery cell set includes: a working battery cell set and a spare battery cell; wherein, the working battery cell set includes a plurality of working sub-batteries, each of which is disconnected from the spare battery cell and the supercapacitor under normal working conditions, and is respectively connected to the positive pole of the power supply, the negative pole of the power supply and the battery control unit for normal driving of the vehicle; the spare battery cell is used to replace the working sub-battery cell when the fault type of any working sub-battery cell is a serious fault; the working battery cell set includes: a working battery cell electronic switch matrix, the The working cell electronic switch matrix includes: a first working cell electronic switch and a second working cell electronic switch; wherein, the first working cell electronic switch is a single-pole double-throw switch, including: a common terminal, a normally open contact and a normally closed contact, the normally open contact is connected to the positive electrode of the corresponding working sub-cell, the normally closed contact is connected to the negative electrode of the corresponding working sub-cell, and the common terminal is arranged between the normally open contact and the normally closed contact; the second working cell electronic switch is a double-pole single-throw switch, and the double-pole single-throw switch is respectively connected to the positive electrode, the negative electrode and the supercapacitor of the corresponding working sub-cell; the spare cell includes: a spare cell electronic switch matrix; wherein The spare cell electronic switch matrix includes: a first spare cell switch, a second spare cell switch and a third spare cell switch, and the spare cell electronic switch matrix is ​​used to control the connection state of the spare cells; the supercapacitor includes: a fast charge and discharge switch; wherein the fast charge and discharge switch is used to connect the supercapacitor to the faulty cell when the switch is closed, so as to quickly charge or quickly discharge the faulty cell; the system also includes: a display screen; wherein the display screen is used to locate and display the position of the faulty cell according to the faulty cell position information sent by the battery control unit; the method includes: Performing fault detection on each working sub-cell in the working cell set through the battery control unit, and determining the fault type of the faulty cell when a faulty cell is detected; Execute the corresponding switch control strategy according to the fault type, adjust the connection status of each switch, switch the working status of the supercapacitor and the spare battery cell, so that the supercapacitor can repair the faulty battery cell, or replace the faulty battery cell with the spare battery cell, and send the location information of the faulty battery cell to the display screen for positioning display; Among them, the step of executing the corresponding switch control strategy according to the fault type, switching the working state of the supercapacitor and the spare battery cell by adjusting the connection state of each switch, so that the supercapacitor repairs the faulty battery cell, or replacing the faulty battery cell with the spare battery cell includes: when the working sub-battery cell of the battery cell is in a normal working state, the first working battery cell electronic switch of the working sub-battery cell is set to a normally open contact, the second working battery cell electronic switch is disconnected, the first spare battery cell switch of the spare battery cell is closed, the second spare battery cell switch and the third spare battery cell switch are disconnected, and the supercapacitor The fast charge and discharge switch of the supercapacitor is disconnected; when the fault type is a normal fault, the first working cell electronic switch of each working sub-cell is switched to the common end, the second working cell electronic switch of the working sub-cell with the fault is connected, and the fast charge and discharge switch of the supercapacitor is controlled to be connected; when the fault type is a serious fault, the first working cell electronic switch of the working sub-cell with the fault is switched to the normally closed contact, and the second spare cell switch of the spare cell is controlled to be closed, and the first spare cell switch is disconnected, so that the spare cell is connected in series to the circuit and the faulty cell is replaced.

2. The rapid repair method for a battery cell according to claim 1, characterized in that: The method further comprises: When a fault is detected in the spare battery cell, the third spare battery cell switch of the spare battery cell is closed, and the fast charge and discharge switch of the supercapacitor is controlled to be connected.

3. A rapid repair device for a battery cell, characterized in that: The device is applied to a rapid repair system for battery cells, and the system includes: a battery control unit, a cell set and a supercapacitor, wherein the battery control unit is connected to the cell set and the supercapacitor respectively; wherein the battery control unit is used to detect faulty cells in the cell set, classify the faulty cells, determine the fault type, and execute a corresponding switch control strategy according to the fault type to replace or repair the faulty cells, wherein the fault type includes: common faults of cell overvoltage or cell undervoltage, and serious faults of cell hardware damage; the supercapacitor is used to replace or repair the faulty cells in the fault type of the faulty cells. When the fault type is a common fault, the faulty battery cell is quickly charged and discharged to repair it so that the faulty battery cell can resume normal function; the battery cell set includes: a working battery cell set and a spare battery cell; wherein, the working battery cell set includes a plurality of working sub-batteries, each of which is disconnected from the spare battery cell and the supercapacitor under normal working conditions, and is respectively connected to the positive pole of the power supply, the negative pole of the power supply and the battery control unit for normal driving of the vehicle; the spare battery cell is used to replace the working sub-battery cell when the fault type of any working sub-battery cell is a serious fault; the working battery cell set includes: a working battery cell electronic switch matrix, the The working cell electronic switch matrix includes: a first working cell electronic switch and a second working cell electronic switch; wherein, the first working cell electronic switch is a single-pole double-throw switch, including: a common terminal, a normally open contact and a normally closed contact, the normally open contact is connected to the positive electrode of the corresponding working sub-cell, the normally closed contact is connected to the negative electrode of the corresponding working sub-cell, and the common terminal is arranged between the normally open contact and the normally closed contact; the second working cell electronic switch is a double-pole single-throw switch, and the double-pole single-throw switch is respectively connected to the positive electrode, the negative electrode and the supercapacitor of the corresponding working sub-cell; the spare cell includes: a spare cell electronic switch matrix; wherein The spare cell electronic switch matrix includes: a first spare cell switch, a second spare cell switch and a third spare cell switch, and the spare cell electronic switch matrix is ​​used to control the connection state of the spare cell; the supercapacitor includes: a fast charge and discharge switch; wherein the fast charge and discharge switch is used to connect the supercapacitor to the faulty cell when the switch is closed, so as to quickly charge or quickly discharge the faulty cell; the system also includes: a display screen; wherein the display screen is used to locate and display the position of the faulty cell according to the faulty cell position information sent by the battery control unit; the device includes: The fault detection module performs fault detection on each working sub-cell in the working cell set through the battery control unit, and determines the fault type of the faulty cell when a faulty cell is detected; The quick repair module executes the corresponding switch control strategy according to the fault type, adjusts the connection status of each switch, switches the working status of the supercapacitor and the spare battery cell, so that the supercapacitor can repair the faulty battery cell, or replace the faulty battery cell with the spare battery cell, and sends the faulty battery cell location information to the display screen for positioning display; Among them, the step of executing the corresponding switch control strategy according to the fault type, switching the working state of the supercapacitor and the spare battery cell by adjusting the connection state of each switch, so that the supercapacitor repairs the faulty battery cell, or replacing the faulty battery cell with the spare battery cell includes: when the working sub-battery cell of the battery cell is in a normal working state, the first working battery cell electronic switch of the working sub-battery cell is set to a normally open contact, the second working battery cell electronic switch is disconnected, the first spare battery cell switch of the spare battery cell is closed, the second spare battery cell switch and the third spare battery cell switch are disconnected, and the supercapacitor The fast charge and discharge switch of the supercapacitor is disconnected; when the fault type is a normal fault, the first working cell electronic switch of each working sub-cell is switched to the common end, the second working cell electronic switch of the working sub-cell with the fault is connected, and the fast charge and discharge switch of the supercapacitor is controlled to be connected; when the fault type is a serious fault, the first working cell electronic switch of the working sub-cell with the fault is switched to the normally closed contact, and the second spare cell switch of the spare cell is controlled to be closed, and the first spare cell switch is disconnected, so that the spare cell is connected in series to the circuit and the faulty cell is replaced.

4. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores computer-executable instructions that can be executed by the processor, and the processor executes the computer-executable instructions to implement the method according to any one of claims 1 to 2.

5. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer-executable instructions. When the computer-executable instructions are called and executed by a processor, the computer-executable instructions prompt the processor to implement the method according to any one of claims 1 to 2.

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