Parallel control method and device for new energy vehicles based on multiple quick-change battery packs

Abstract

The present application provides a method, device, electronic device and computer-readable storage medium for parallel control of new energy vehicles based on multiple quick-change battery packs. The method for parallel control of new energy vehicles based on multiple quick-change battery packs includes: after the vehicle installs multiple battery packs through quick change, the voltage of U1, U2 and U3 cells is detected through external BMS low-voltage communication transmission; after accumulating the total pressure, the compliance of U1, U2 and U3 is judged in turn to obtain the judgment result; according to the judgment result, the battery pack that meets the standard is controlled to be incorporated into the high-voltage circuit of the whole vehicle, and the high-voltage battery pack that does not meet the standard is cut off. According to the embodiment of the present application, the excessive pulse current between batteries and the possible overcharging of batteries caused by the difference in battery life of new energy vehicles with multiple battery packs in parallel and quick-change mode can be avoided; the energy utilization efficiency of new energy vehicles with multiple quick-change modes can be effectively improved.

Description

Technical Field

[0001] The present application belongs to the field of new energy vehicles, and in particular, relates to a method, device, electronic device and computer-readable storage medium for parallel control of new energy vehicles based on multiple quick-change battery packs. Background Art

[0002] In the parallel application scheme where multiple sets of parallel quick-change batteries can be selected for new energy vehicles, U total = U1 = U2 = U3 in the parallel circuit;

[0003] Because in the long-term use scenario of multiple battery quick-change, the lifespan of U1\U2\U3 is different (OCV, internal resistance are different), when different voltage sources are connected in parallel, circulating current will occur.

[0004] The size of the circulating current = voltage difference / internal resistance, for example, {(U1 340V-U2 335V):(U1 340V-U330V) take MAX} / (U1 0.065Ω+U2 0.075Ω+U3 0.08Ω) will result in the highest current from U1 to U2 and U3 for charging. In severe cases, the circulating current in the internal cells of U2\U3 will be extremely large, causing local melting, thermal runaway and other phenomena.

[0005] In view of this, this application is filed. Summary of the invention

[0006] The embodiments of the present application provide a method, device, electronic device and computer-readable storage medium for parallel control of new energy vehicles based on multiple quick-change battery packs, which can avoid excessive pulse current between batteries and possible overcharging of battery cells caused by differences in battery life of new energy vehicles in parallel quick-change mode of multiple battery packs; and effectively improve the energy utilization efficiency of new energy vehicles in multiple quick-change mode.

[0007] In a first aspect, an embodiment of the present application provides a parallel control method for a new energy vehicle based on multiple quick-change battery packs, including:

[0008] After the vehicle is equipped with multiple battery packs through quick replacement, the voltage of U1, U2, and U3 cells is detected through external BMS low-voltage communication transmission;

[0009] After accumulating the total pressure, make compliance judgments on U1, U2, and U3 in turn to obtain the judgment results;

[0010] Based on the judgment results, the battery packs that meet the standards are controlled to be integrated into the high-voltage circuit of the vehicle, and the high-voltage battery packs that do not meet the standards are cut off.

[0011] Furthermore, after accumulating the total pressure, the compliance of U1, U2, and U3 is judged in turn, and the judgment results are obtained, including:

[0012] U1 compliance judgment (Cell Umax-CellUmin) ≤ 500mv, cumulative total pressure = U1;

[0013] When U1 meets the requirements, U1 is powered on with high voltage.

[0014] Furthermore, it also includes:

[0015] In the case that U1 does not meet the requirements, multiple battery groups are quickly replaced in parallel.

[0016] Furthermore, when U1 meets the requirements, after U1 is powered on with high voltage, the method further includes:

[0017] U2 compliance judgment (Cell Umax-CellUmin) ≤ 500mv, cumulative total pressure U2: U1 < pressure difference 5V;

[0018] When U2 meets the requirements, U2 is powered on with high voltage.

[0019] Furthermore, the method further comprises:

[0020] If U2 does not meet the requirements, high voltage power supply to U2 is prohibited, and the vehicle prompts the user to choose to replace the battery pack or continue driving.

[0021] Furthermore, when U2 meets the requirements, after U2 is powered on with high voltage, the method further includes:

[0022] U3 compliance judgment (Cell Umax-CellUmin) ≤ 500mv, cumulative total pressure U3: U1: U2 < pressure difference 5V;

[0023] When U3 meets the requirements, U3 is powered on with high voltage.

[0024] Furthermore, the method further comprises:

[0025] If U3 does not meet the requirements, high voltage power supply to U3 is prohibited, and the vehicle prompts the user to choose to replace the battery pack or continue driving.

[0026] In a second aspect, an embodiment of the present application provides a parallel control device for a new energy vehicle based on multiple quick-change battery packs, comprising:

[0027] The voltage detection module is used to detect the voltage of U1, U2, and U3 cells through external BMS low-voltage communication transmission after multiple battery groups are installed in the vehicle through quick replacement;

[0028] The judgment module is used to perform compliance judgment on U1, U2, and U3 in turn after accumulating the total pressure to obtain the judgment result;

[0029] The control module is used to control the battery packs that meet the standards to be integrated into the high-voltage circuit of the whole vehicle based on the judgment results, and to cut off the high-voltage battery packs that do not meet the standards.

[0030] Furthermore, the judging module is used for: judging the compliance of U1 (Cell Umax-CellUmin)≤500mv, the accumulated total voltage=U1; and when U1 complies with the requirements, powering on U1 with high voltage.

[0031] Furthermore, it also includes:

[0032] The operation execution module is used to execute the parallel quick-change operation of multiple battery groups when U1 does not meet the requirements.

[0033] Furthermore, the judgment module is also used for: U2 compliance judgment ((Cell Umax-CellUmin)≤500mv, cumulative total voltage U2: U1<voltage difference 5V; when U2 complies, U2 is powered on with high voltage.

[0034] Furthermore, the device also includes:

[0035] The high-voltage power-on prohibition module is used to prohibit high-voltage power-on of U2 when U2 does not meet the requirements, and the vehicle prompts the user to choose to replace the battery pack or continue driving.

[0036] Furthermore, the judgment module is also used for: U3 compliance judgment ((Cell Umax-CellUmin)≤500mv, cumulative total voltage U3:U1:U2<voltage difference 5V; if U3 complies, U3 is powered on with high voltage.

[0037] Furthermore, the device also includes:

[0038] The high-voltage power-on prohibition module is also used to prohibit high-voltage power-on of U3 when U3 does not comply with the requirements, and the vehicle prompts the user to choose to replace the battery pack or continue driving.

[0039] In a third aspect, an embodiment of the present application provides an electronic device, the electronic device comprising: a processor and a memory storing computer program instructions;

[0040] When the processor executes the computer program instructions, the parallel control method for new energy vehicles based on multiple quick-change battery packs as shown in the first aspect is implemented.

[0041] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having computer program instructions stored thereon. When the computer program instructions are executed by a processor, a parallel control method for new energy vehicles based on multiple quick-change battery packs is implemented as shown in the first aspect.

[0042] The parallel control method, device, electronic device and computer-readable storage medium based on multiple quick-change battery packs for new energy vehicles in the embodiments of the present application can avoid excessive pulse current between batteries and possible overcharging of battery cells caused by differences in battery life of new energy vehicles in parallel quick-change mode with multiple battery packs; and effectively improve the energy utilization efficiency of new energy vehicles in multiple quick-change mode.

[0043] The parallel control method for new energy vehicles based on multiple quick-change battery packs includes: after the vehicle installs multiple battery packs through quick change, the voltages of U1, U2, and U3 batteries are detected through external BMS low-voltage communication transmission; after accumulating the total pressure, the compliance of U1, U2, and U3 is judged in turn to obtain the judgment result; according to the judgment result, the battery packs that meet the standards are controlled to be incorporated into the high-voltage circuit of the whole vehicle, and the high-voltage battery packs that do not meet the standards are cut off.

[0044] It can be seen that this method, after accumulating the total pressure, judges the compliance of U1, U2, and U3 in turn, which can avoid the excessive pulse current between batteries and the possible overcharge of the battery cells caused by the difference in battery life of new energy vehicles with multiple groups of batteries in parallel quick-change mode; effectively improve the energy utilization efficiency of new energy vehicles with multiple groups of batteries in quick-change mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 It is a flow chart of a parallel control method for a new energy vehicle based on multiple quick-change battery packs provided by an embodiment of the present application;

[0047] Figure 2 It is a high voltage topology diagram of multiple quick-change battery packs provided by an embodiment of the present application;

[0048] Figure 3 It is a parallel control strategy logic diagram provided by an embodiment of the present application;

[0049] Figure 4 This is a schematic diagram of the structure of a parallel control device for a new energy vehicle based on multiple quick-change battery packs provided by an embodiment of the present application;

[0050] Figure 5 It is a schematic diagram of the structure of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0051] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0053] In order to solve the problems of the prior art, the embodiments of the present application provide a method, device, electronic device and computer-readable storage medium for parallel control of new energy vehicles based on multiple sets of quick-change battery packs. The following first introduces the method for parallel control of new energy vehicles based on multiple sets of quick-change battery packs provided by the embodiments of the present application.

[0054] Figure 1 The flowchart of a parallel control method for a new energy vehicle based on multiple quick-change battery packs provided by an embodiment of the present application is shown. Figure 1 As shown, the parallel control method for new energy vehicles based on multiple groups of quick-change battery packs includes:

[0055] S101. After the vehicle is equipped with multiple battery packs through quick replacement, the voltage of U1, U2, and U3 cells is detected through external BMS low-voltage communication transmission;

[0056] Among them, the high voltage topology diagram of multiple quick-change battery packs is as follows Figure 2 shown.

[0057] S102, after accumulating the total pressure, perform compliance judgment on U1, U2, and U3 in turn to obtain the judgment result;

[0058] like Figure 3As shown, in one embodiment, after accumulating the total pressure, the compliance of U1, U2, and U3 is judged in turn to obtain the judgment results, including:

[0059] U1 compliance judgment (Cell Umax-CellUmin) ≤ 500mv, cumulative total pressure = U1;

[0060] When U1 meets the requirements, U1 is powered on with high voltage.

[0061] In one embodiment, it further includes:

[0062] In the case that U1 does not meet the requirements, multiple battery groups are quickly replaced in parallel.

[0063] In one embodiment, when U1 meets the requirements, after U1 is powered on with high voltage, the method further includes:

[0064] U2 compliance judgment (Cell Umax-CellUmin) ≤ 500mv, cumulative total pressure U2: U1 < pressure difference 5V;

[0065] When U2 meets the requirements, U2 is powered on with high voltage.

[0066] In one embodiment, the method further comprises:

[0067] If U2 does not meet the requirements, high voltage power supply to U2 is prohibited, and the vehicle prompts the user to choose to replace the battery pack or continue driving.

[0068] In one embodiment, when U2 meets the requirements, after U2 is powered on with high voltage, the method further includes:

[0069] U3 compliance judgment (Cell Umax-CellUmin) ≤ 500mv, cumulative total pressure U3: U1: U2 < pressure difference 5V;

[0070] When U3 meets the requirements, U3 is powered on with high voltage.

[0071] In one embodiment, the method further comprises:

[0072] If U3 does not meet the requirements, high voltage power supply to U3 is prohibited, and the vehicle prompts the user to choose to replace the battery pack or continue driving.

[0073] S103. Based on the judgment result, control the battery packs that meet the standards to be integrated into the high-voltage circuit of the whole vehicle, and cut off the high-voltage battery packs that do not meet the standards.

[0074] In summary, in order to avoid the circulation phenomenon caused by the voltage difference between different battery packs in multiple parallel battery packs, the present invention adopts an external BMS to detect the internal cell voltages of multiple quick-change battery packs, formulates a difference threshold, and determines whether the parallel battery group benchmark U1 is met. Based on the user demand process, high voltage power can be supplied to determine the eligibility of the second and third battery groups. If they are eligible for inclusion in the main circuit, the battery packs that are not eligible are disconnected from the main circuit.

[0075] Measures: After the vehicle is equipped with multiple battery packs through quick replacement, the vehicle enters the compliance judgment strategy after detecting the U1, U2, and U3 battery cell voltages and the accumulated total pressure through external BMS low-voltage communication transmission:

[0076] 1) U1 compliance judgment (Cell Umax-CellUmin) ≤ 500mv, cumulative total pressure = U1;

[0077] 2) U2 compliance judgment ((Cell Umax-CellUmin)≤500mv, cumulative total pressure U2: U1<pressure difference 5V;

[0078] 3) U3 compliance judgment ((Cell Umax-CellUmin)≤500mv, cumulative total pressure U3:U1:U2<pressure difference 5V;

[0079] The present invention adopts a parallel control strategy to avoid excessive pulse current between batteries and possible overcharging of battery cells caused by differences in battery life of new energy vehicles with multiple battery groups in parallel quick-change mode; and effectively improve the energy utilization efficiency of new energy vehicles with multiple battery groups in quick-change mode.

[0080] Figure 4 The schematic diagram of the structure of the parallel control device for new energy vehicles based on multiple quick-change battery packs provided in the embodiment of the present application is shown. Figure 4 As shown, the parallel control device for new energy vehicles based on multiple groups of quick-change battery packs includes:

[0081] The voltage detection module 401 is used to detect the voltage of the U1, U2, and U3 cells through external BMS low-voltage communication transmission after the vehicle installs multiple battery groups through quick replacement;

[0082] The judgment module 402 is used to perform compliance judgment on U1, U2, and U3 in sequence after accumulating the total pressure to obtain a judgment result;

[0083] The control module 403 is used to control the battery packs that meet the standards to be integrated into the high-voltage circuit of the whole vehicle according to the judgment result, and to cut off the high-voltage battery packs that do not meet the standards.

[0084] In one embodiment, the judgment module 402 is used to: judge the compliance of U1 as (Cell Umax-CellUmin)≤500mv, the accumulated total voltage=U1; if U1 complies with the requirements, power up U1 with high voltage.

[0085] In one embodiment, it further includes:

[0086] The operation execution module is used to execute the parallel quick-change operation of multiple battery groups when U1 does not meet the requirements.

[0087] In one embodiment, the judgment module 402 is further used for: U2 compliance judgment (Cell Umax-CellUmin)≤500mv, cumulative total voltage U2: U1<voltage difference 5V; if U2 complies, U2 is powered on with high voltage.

[0088] In one embodiment, the apparatus further comprises:

[0089] The high-voltage power-on prohibition module is used to prohibit high-voltage power-on of U2 when U2 does not meet the requirements, and the vehicle prompts the user to choose to replace the battery pack or continue driving.

[0090] In one embodiment, the judgment module 402 is further used for: U3 compliance judgment (Cell Umax-CellUmin)≤500mv, cumulative total voltage U3:U1:U2<voltage difference 5V; if U3 complies, U3 is powered on with high voltage.

[0091] In one embodiment, the apparatus further comprises:

[0092] The high-voltage power-on prohibition module is also used to prohibit high-voltage power-on of U3 when U3 does not comply with the requirements, and the vehicle prompts the user to choose to replace the battery pack or continue driving.

[0093] Figure 4 Each module in the device shown has the function of realizing Figure 1 The functions of each step in the process can achieve the corresponding technical effects, which will not be described in detail here for the sake of brevity.

[0094] Figure 5 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application is shown.

[0095] The electronic device may include a processor 501 and a memory 502 storing computer program instructions.

[0096] Specifically, the processor 501 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0097] The memory 502 may include a large capacity memory for data or instructions. By way of example and not limitation, the memory 502 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. Where appropriate, the memory 502 may include a removable or non-removable (or fixed) medium. Where appropriate, the memory 502 may be inside or outside the electronic device. In a particular embodiment, the memory 502 may be a non-volatile solid-state memory.

[0098] In one embodiment, the memory 502 may be a read-only memory (ROM). In one embodiment, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM), or a flash memory, or a combination of two or more of these.

[0099] The processor 501 reads and executes the computer program instructions stored in the memory 502 to implement any one of the parallel control methods for new energy vehicles based on multiple quick-change battery packs in the above embodiments.

[0100] In one example, the electronic device may further include a communication interface 503 and a bus 510. Figure 5 As shown, the processor 501, the memory 502, and the communication interface 503 are connected via a bus 510 and communicate with each other.

[0101] The communication interface 503 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiments of the present application.

[0102] Bus 510 includes hardware, software or both, and the parts of electronic equipment are coupled to each other. For example, but not limitation, bus may include accelerated graphics port (AGP) or other graphics bus, enhanced industrial standard architecture (EISA) bus, front side bus (FSB), hypertransport (HT) interconnection, industrial standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations. In appropriate cases, bus 510 may include one or more buses. Although the present application embodiment describes and shows a specific bus, the application considers any suitable bus or interconnection.

[0103] In addition, in combination with the parallel control method for new energy vehicles based on multiple quick-change battery packs in the above embodiments, the present application embodiment can provide a computer-readable storage medium for implementation. The computer-readable storage medium stores computer program instructions; when the computer program instructions are executed by the processor, any of the parallel control methods for new energy vehicles based on multiple quick-change battery packs in the above embodiments is implemented.

[0104] It should be clear that the present application is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present application.

[0105] The functional modules shown in the above-described block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. Programs or code segments can be stored in machine-readable media, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable media" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0106] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be performed simultaneously.

[0107] The above reference is according to the method of the embodiment of the present application, the flow chart of the device (system) and the computer program product and / or the block diagram described various aspects of the present application.It should be understood that each square box in the flow chart and / or the block diagram and the combination of each square box in the flow chart and / or the block diagram can be realized by computer program instructions.These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer or other programmable data processing device to produce a machine so that these instructions executed by the processor of the computer or other programmable data processing device enable the realization of the function / action specified in one or more square boxes of the flow chart and / or the block diagram.Such a processor can be but is not limited to a general-purpose processor, a special-purpose processor, a special application processor or a field programmable logic circuit.It can also be understood that each square box in the block diagram and / or the flow chart and the combination of the square boxes in the block diagram and / or the flow chart can also be realized by the dedicated hardware that performs the specified function or action, or can be realized by the combination of dedicated hardware and computer instructions.

[0108] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A parallel control method for new energy vehicles based on multiple quick-change battery packs, characterized in that: include: After the vehicle is equipped with multiple battery packs through quick replacement, the voltage of U1, U2, and U3 cells is detected through external BMS low-voltage communication transmission; After accumulating the total pressure, make compliance judgments on U1, U2, and U3 in turn to obtain the judgment results; Based on the judgment result, control the battery packs that meet the standards to be incorporated into the high-voltage circuit of the vehicle, and cut off the high-voltage battery packs that do not meet the standards; After the total pressure is accumulated, the compliance of U1, U2, and U3 is judged in turn to obtain the judgment results, including: U1 compliance judgment (Cell Umax-CellUmin) ≤ 500mv, cumulative total pressure = U1; When U1 meets the requirements, U1 is powered on with high voltage; If U1 does not meet the requirements, perform quick-change operation of multiple battery groups in parallel; U2 compliance judgment (Cell Umax-CellUmin) ≤ 500mv, cumulative total pressure U2: U1 < pressure difference 5V; If U2 meets the requirements, high voltage is applied to U2; U3 compliance judgment (Cell Umax-CellUmin) ≤ 500mv, cumulative total pressure U3: U1: U2 < pressure difference 5V; When U3 meets the requirements, U3 is powered on with high voltage.

2. The parallel control method for new energy vehicles based on multiple quick-change battery packs according to claim 1 is characterized in that: The method further comprises: If U2 does not meet the requirements, high voltage power supply to U2 is prohibited, and the vehicle prompts the user to choose to replace the battery pack or continue driving.

3. The parallel control method for new energy vehicles based on multiple quick-change battery packs according to claim 1 is characterized in that: The method further comprises: If U3 does not meet the requirements, high voltage power supply to U3 is prohibited, and the vehicle prompts the user to choose to replace the battery pack or continue driving.

4. A parallel control device for new energy vehicles based on multiple quick-change battery packs, characterized in that: include: The voltage detection module is used to detect the voltage of U1, U2, and U3 cells through external BMS low-voltage communication transmission after multiple battery groups are installed in the vehicle through quick replacement; The judgment module is used to perform compliance judgment on U1, U2, and U3 in turn after accumulating the total pressure, and obtain the judgment results, including: U1 compliance judgment (Cell Umax-CellUmin) ≤ 500mv, cumulative total pressure = U1; when U1 complies, U1 is powered on with high voltage, U2 compliance judgment (Cell Umax-CellUmin) ≤ 500mv, cumulative total pressure U2: U1 < voltage difference 5V; when U2 complies, U2 is powered on with high voltage, U3 compliance judgment (Cell Umax-CellUmin) ≤ 500mv, cumulative total pressure U3: U1: U2 < voltage difference 5V; when U3 complies, U3 is powered on with high voltage; An operation execution module is used to execute a quick-change operation of multiple battery groups in parallel when U1 does not meet the requirements; The control module is used to control the battery packs that meet the standards to be integrated into the high-voltage circuit of the whole vehicle based on the judgment results, and to cut off the high-voltage battery packs that do not meet the standards.

5. An electronic device, characterized in that: The electronic device comprises: a processor and a memory storing computer program instructions; When the processor executes the computer program instructions, it implements the parallel control method for new energy vehicles based on multiple quick-change battery packs as described in any one of claims 1-3.

6. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer program instructions, and when the computer program instructions are executed by the processor, the parallel control method for new energy vehicles based on multiple quick-change battery packs as described in any one of claims 1 to 3 is implemented.

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