A multi-gun simultaneous charging method and coordination device based on virtual pile

Abstract

The present application relates to a kind of new energy equipment charging management method and coordination equipment supporting multi-gun same charging, receive the same charging request of multiple piles of user, determine all by the target charging pile selected by user according to multiple piles same charging request;Establish the virtual logic entity of analog pile, analog pile is connected with new energy equipment by target charging pile, obtains the maximum charging power of new energy equipment;Analog pile is according to maximum charging power, for each target charging pile is carried out charging power coordination distribution, and analog single pile and EMS carry out information interaction;The present application establishes the virtual logic entity of analog pile, coordinates target charging pile power distribution, unified scheduling multiple piles, without modifying original single pile single gun hardware, to realize multiple piles collaborative charging with low cost;Any number of piles line in station can be flexibly combined, break the restriction of fixed collocation;While to upper layer platform is disguised as single pile interaction, compatible with existing EMS system, applicable to a variety of single BMS multiple charging port equipment, improve charging efficiency and disperse heat management risk.

Description

[0001] This case is a divisional application based on the invention patent filed on July 3, 2025, with application number 202510912698.2 and titled "A Charging Management Method and Coordination Device for New Energy Equipment Supporting Simultaneous Charging of Multiple Guns". Technical Field

[0002] This invention relates to the field of new energy charging management, and in particular to a charging management method and coordination device for new energy equipment that supports simultaneous charging of multiple charging guns. Background Technology

[0003] With the increasing popularity and adoption of electric vehicles, users are demanding shorter charging times, leading to a surge in demand for high-power charging equipment. However, the high charging current and power of these devices can cause battery pack temperatures to rise too quickly, reducing battery lifespan and increasing the design cost and complexity of the charger. To address this issue, many heavy trucks, logistics vehicles, buses, and even electric ships requiring large-capacity batteries are adopting multi-port charging devices for simultaneous charging. This shortens charging time while also reducing the risks and costs associated with single-port thermal management.

[0004] To avoid incurring additional costs, this type of charging often employs a single BMS system architecture, managing multiple battery packs only on the main charging circuit to save costs. Therefore, to achieve rapid battery recharging, the charging equipment needs to coordinate the output of multiple charging guns.

[0005] Therefore, a charging method is needed to achieve coordinated support for multiple charging guns charging simultaneously. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a charging management method and coordination device for new energy equipment that supports simultaneous charging of multiple charging guns, and supports simultaneous charging of multiple charging guns for a single BMS with multiple charging ports.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A charging management method for new energy devices that supports simultaneous charging with multiple charging guns, comprising the following steps: S1. Receive the user's request for simultaneous charging at multiple charging stations, and determine all target charging stations selected by the user based on the request for simultaneous charging at multiple charging stations. S2. Establish a virtual logical entity of the simulated charging pile. The simulated charging pile is connected to the new energy equipment through the target charging pile to obtain the maximum charging power of the new energy equipment. S3. The simulated pile coordinates and allocates charging power to each of the target charging piles according to the maximum charging power, and simulates information interaction between a single pile and EMS.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A coordination device includes a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, performs the following steps: S1. Receive the user's request for simultaneous charging at multiple charging stations, and determine all target charging stations selected by the user based on the request for simultaneous charging at multiple charging stations. S2. Establish a virtual logical entity of the simulated charging pile. The simulated charging pile is connected to the new energy equipment through the target charging pile to obtain the maximum charging power of the new energy equipment. S3. The simulated pile coordinates and allocates charging power to each of the target charging piles according to the maximum charging power, and simulates information interaction between a single pile and EMS.

[0009] The beneficial effects of this invention are as follows: This invention provides a charging management method and coordination device for new energy equipment that supports simultaneous charging of multiple charging guns. It establishes a virtual logical entity of a simulated charging pile, coordinates the power allocation of the target charging pile, and uniformly schedules multiple charging piles. It does not require modification of the original single-pile single-gun hardware, and achieves multi-pile collaborative charging at low cost. It can flexibly combine any number of charging piles and lines in the station, breaking the fixed combination restriction. At the same time, it disguises the upper platform as a single-pile interaction, is compatible with the existing EMS system, and is suitable for various single BMS multi-charging port devices, improving charging efficiency and dispersing thermal management risks. Attached Figure Description

[0010] Figure 1 This is a simplified flowchart illustrating a charging management method for new energy devices that supports simultaneous charging of multiple charging guns, according to an embodiment of the present invention. Figure 2 This is a timing example diagram of dual-gun coordinated charging, which is a charging management method for new energy devices that supports simultaneous charging of multiple charging guns according to an embodiment of the present invention. Figure 3 This is an example diagram of the dual-gun collaborative charging architecture of a charging management method for new energy devices that supports simultaneous charging of multiple charging guns, according to an embodiment of the present invention. Figure 4 This is a connection example diagram of a three-gun coordinated charging method for a new energy device charging management method that supports multi-gun simultaneous charging, according to an embodiment of the present invention. Figure 5 This is a structural example diagram of a coordination device according to an embodiment of the present invention; Label Explanation: 1. A coordinating device; 2. A processor; 3. A memory. Detailed Implementation

[0011] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0012] Please refer to Figures 1 to 4 A charging management method for new energy devices that supports simultaneous charging with multiple charging guns, comprising the following steps: S1. Receive the user's request for simultaneous charging at multiple charging stations, and determine all target charging stations selected by the user based on the request for simultaneous charging at multiple charging stations. S2. Establish a virtual logical entity of the simulated charging pile. The simulated charging pile is connected to the new energy equipment through the target charging pile to obtain the maximum charging power of the new energy equipment. S3. The simulated pile coordinates and allocates charging power to each of the target charging piles according to the maximum charging power, and simulates information interaction between a single pile and EMS.

[0013] As can be seen from the above description, the beneficial effects of the present invention are as follows: The present invention provides a charging management method for new energy equipment that supports simultaneous charging of multiple charging guns. It establishes a virtual logical entity of a simulated charging pile, coordinates the power allocation of the target charging pile, and uniformly schedules multiple charging piles. It does not require modification of the original single-pile single-gun hardware, and achieves multi-pile collaborative charging at low cost. It can flexibly combine any number of charging piles and lines in the station, breaking the fixed combination restriction. At the same time, it disguises the upper-level platform as a single-pile interaction, is compatible with the existing EMS system, and is suitable for various single BMS multi-charging-port devices, improving charging efficiency and dispersing thermal management risks.

[0014] Furthermore, based on the multi-charging request, all target charging stations selected by the user are determined, including: The user selects the main charging pile based on the multi-pile simultaneous charging request. In step S2, the simulated charging pile connects to the new energy equipment via the target charging pile, and the maximum charging power of the new energy equipment is obtained by: The simulated charging pile establishes a communication connection with the new energy equipment through the main charging pile, and obtains the maximum charging power of the new energy equipment through the established communication connection.

[0015] As described above, the main pile is responsible for communication and interaction with the vehicle's BMS (such as handshake and parameter acquisition), while the auxiliary piles only handle power transmission, avoiding the complexity of simultaneous communication through multiple ports. It is compatible with a single BMS system architecture, eliminating the need for additional communication interfaces on the vehicle side and reducing modification costs. The main pile collects equipment requirements in a unified manner, providing an accurate basis for simulating pile power allocation and ensuring the consistency and reliability of multi-pile collaboration.

[0016] Furthermore, the steps between step S2 and step S3 include: S21. The simulated pile performs insulation verification on the main charging pile and obtains the insulation verification result. Step S3 is only entered when the insulation test is passed. The insulation confirmation result is initiated by the main charging pile to the new energy equipment, and the new energy equipment generates the result based on the line insulation detection of each target charging pile. The target charging pile includes the main charging pile and other charging piles.

[0017] As described above, insulation testing of all target charging pile circuits is performed through the main charging pile to ensure the safety of the charging circuit and prevent risks such as leakage and short circuits. The test results are generated by the vehicle and fed back to the main charging pile, which meets the national standard charging process requirements. Hardware faults are eliminated in advance to avoid interruptions due to insulation problems during charging, ensuring the safety of equipment and personnel and improving system stability.

[0018] Furthermore, it also includes the following steps: S4. The simulated charging pile receives a power reduction request from one of the target charging piles, determines the power reduction amount based on the power reduction request, and adjusts the charging power of the remaining target charging piles that have not initiated the power reduction request based on the power reduction amount.

[0019] As described above, when a certain pile needs to be derated due to factors such as temperature or malfunction, the simulated pile automatically adjusts the output power of the remaining piles to make up the gap and avoid charging interruption; it dynamically balances the load of multiple piles, prioritizing the power demand of vehicles while extending the service life of the piles; it breaks the limitation of the traditional fixed pile configuration of "charging stops when a single pile fails", improving the utilization rate of the station equipment and the user experience.

[0020] Further, step S3 includes: The simulated charging pile distributes the maximum charging power evenly to all the target charging piles, and the target charging piles supply power to the new energy equipment according to the allocated power.

[0021] As described above, in scenarios where the charging piles have the same capacity, the power distribution strategy simplifies the power allocation logic and improves scheduling efficiency; avoids the risk of overheating caused by single pile overload, balances the workload of multiple piles, and extends the overall lifespan of the equipment; balances the vehicle's need for rapid charging with the performance of the charging piles, adapts to the stable charging needs of high-capacity equipment, and reduces control complexity.

[0022] Please refer to Figure 5 A coordination device includes a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, performs the following steps: S1. Receive the user's request for simultaneous charging at multiple charging stations, and determine all target charging stations selected by the user based on the request for simultaneous charging at multiple charging stations. S2. Establish a virtual logical entity of the simulated charging pile. The simulated charging pile is connected to the new energy equipment through the target charging pile to obtain the maximum charging power of the new energy equipment. S3. The simulated pile coordinates and allocates charging power to each of the target charging piles according to the maximum charging power, and simulates information interaction between a single pile and EMS.

[0023] As can be seen from the above description, the beneficial effects of the present invention are as follows: The coordination device of the present invention establishes a virtual logical entity of a simulated charging pile, coordinates the power allocation of the target charging pile, and uniformly schedules multiple charging piles without modifying the original single-pile single-gun hardware, thereby achieving multi-pile collaborative charging at low cost; it can flexibly combine any number of charging piles and lines in the station, breaking the fixed combination restriction; at the same time, it disguises the upper platform as a single-pile interaction, is compatible with the existing EMS system, and is suitable for various single BMS multi-charging port devices, improving charging efficiency and dispersing thermal management risks.

[0024] Furthermore, based on the multi-charging request, all target charging stations selected by the user are determined, including: The user selects the main charging pile based on the multi-pile simultaneous charging request. In step S2, the simulated charging pile connects to the new energy equipment via the target charging pile, and the maximum charging power of the new energy equipment is obtained by: The simulated charging pile establishes a communication connection with the new energy equipment through the main charging pile, and obtains the maximum charging power of the new energy equipment through the established communication connection.

[0025] As described above, the main pile is responsible for communication and interaction with the vehicle's BMS (such as handshake and parameter acquisition), while the auxiliary piles only handle power transmission, avoiding the complexity of simultaneous communication through multiple ports. It is compatible with a single BMS system architecture, eliminating the need for additional communication interfaces on the vehicle side and reducing modification costs. The main pile collects equipment requirements in a unified manner, providing an accurate basis for simulating pile power allocation and ensuring the consistency and reliability of multi-pile collaboration.

[0026] Furthermore, the steps between step S2 and step S3 include: S21. The simulated pile performs insulation verification on the main charging pile and obtains the insulation verification result. Step S3 is only entered when the insulation test is passed. The insulation confirmation result is initiated by the main charging pile to the new energy equipment, and the new energy equipment generates the result based on the line insulation detection of each target charging pile. The target charging pile includes the main charging pile and other charging piles.

[0027] As described above, insulation testing of all target charging pile circuits is performed through the main charging pile to ensure the safety of the charging circuit and prevent risks such as leakage and short circuits. The test results are generated by the vehicle and fed back to the main charging pile, which meets the national standard charging process requirements. Hardware faults are eliminated in advance to avoid interruptions due to insulation problems during charging, ensuring the safety of equipment and personnel and improving system stability.

[0028] Furthermore, it also includes the following steps: S4. The simulated charging pile receives a power reduction request from one of the target charging piles, determines the power reduction amount based on the power reduction request, and adjusts the charging power of the remaining target charging piles that have not initiated the power reduction request based on the power reduction amount.

[0029] As described above, when a certain pile needs to be derated due to factors such as temperature or malfunction, the simulated pile automatically adjusts the output power of the remaining piles to make up the gap and avoid charging interruption; it dynamically balances the load of multiple piles, prioritizing the power demand of vehicles while extending the service life of the piles; it breaks the limitation of the traditional fixed pile configuration of "charging stops when a single pile fails", improving the utilization rate of the station equipment and the user experience.

[0030] Further, step S3 includes: The simulated charging pile distributes the maximum charging power evenly to all the target charging piles, and the target charging piles supply power to the new energy equipment according to the allocated power.

[0031] As described above, in scenarios where the charging piles have the same capacity, the power distribution strategy simplifies the power allocation logic and improves scheduling efficiency; avoids the risk of overheating caused by single pile overload, balances the workload of multiple piles, and extends the overall lifespan of the equipment; balances the vehicle's need for rapid charging with the performance of the charging piles, adapts to the stable charging needs of high-capacity equipment, and reduces control complexity.

[0032] The present invention provides a charging management method and coordination device for new energy equipment that supports simultaneous charging of multiple charging points. It is applicable to the adaptation of charging stations for simultaneous charging of multiple charging piles, and is particularly applicable to the adaptation of new energy equipment with multiple charging ports on a single BMS.

[0033] Please refer to Figures 1 to 4 Embodiment 1 of the present invention is as follows: A charging management method for new energy devices that supports simultaneous charging with multiple charging guns, comprising the following steps: S1. Receive the user's request for simultaneous charging at multiple charging stations, and determine all target charging stations selected by the user based on the request for simultaneous charging at multiple charging stations. Based on the multi-charging request, all target charging stations selected by the user are determined as follows: The user selects the main charging pile based on the multi-pile simultaneous charging request. In this embodiment, the user selects the charging pile and charging mode according to the operating rules of the charging station. The user can connect the charging gun according to the design support of their own new energy equipment, such as... Figure 4 As shown, a device with three charging ports can connect to a maximum of three charging stations. Users need to report the selected charging stations to the system. For example, using a QR code charging method, after scanning the code for charging station A with their mobile device, the mobile device's display options include a multi-station charging option. Based on the user's selection, the charging mode is confirmed: if the multi-station charging option is not selected, it operates in the original mode and charges normally. If the multi-station charging option is selected, a simulated charging station is created, and station A is set as the master station, prompting the user to select a cooperating charging station (station number).

[0034] Based on the information submitted by the user via mobile device, all charging piles selected by the user are confirmed, i.e., the target charging piles. In this embodiment, for the sake of simplicity, the example is that the user selects two (one main charging pile A and a cooperating charging pile B) or three charging piles (one main charging pile A and cooperating charging piles B and C). In other equivalent embodiments, the user can select more charging piles for collaborative charging.

[0035] S2. Establish a virtual logical entity of the simulated charging pile. The simulated charging pile is connected to the new energy equipment through the target charging pile to obtain the maximum charging power of the new energy equipment. In step S2, the simulated charging pile connects to the new energy equipment via the target charging pile, and the maximum charging power of the new energy equipment is obtained by: The simulated charging pile establishes a communication connection with the new energy equipment through the main charging pile, and obtains the maximum charging power of the new energy equipment through the established communication connection.

[0036] In this embodiment, it can be referred to Figure 2 and Figure 3 The following diagram illustrates a dual-gun coordinated charging system. A simulated charging station is constructed, where the main gun of charging station A communicates with the vehicle's power transmission via messages, and simultaneously reports information to the simulated charging station. Based on the information reported by charging station A, the simulated charging station determines the maximum power demand of the vehicle (this is just an example; in other equivalent embodiments, it could be other new energy devices).

[0037] S21. The simulated pile performs insulation verification on the main charging pile and obtains the insulation verification result. Step S3 is only entered when the insulation test is passed. The insulation confirmation result is initiated by the main charging pile to the new energy equipment, and the new energy equipment generates the result based on the line insulation detection of each target charging pile. The target charging pile includes the main charging pile and other charging piles.

[0038] In this embodiment, it can be referred to Figure 2 The timing diagram shown illustrates a dual-gun coordinated charging system. Before power distribution and activation, the simulated charging station needs to perform line insulation testing. The main charging station (charging station A) performs insulation testing with the new energy device, while the new energy device performs insulation testing with other charging stations (such as charging station B). The main charging station then relays the insulation test results between the new energy device and each charging station to the simulated charging station.

[0039] After the insulation test is completed, proceed to the next steps.

[0040] S3. The simulated pile coordinates and allocates charging power to each of the target charging piles according to the maximum charging power, and simulates information interaction between a single pile and EMS.

[0041] Step S3 includes: The simulated charging pile distributes the maximum charging power evenly to all the target charging piles, and the target charging piles supply power to the new energy equipment according to the allocated power.

[0042] In this embodiment, the simulated charging piles distribute power equally according to the vehicle's maximum power demand. When the capacity of each charging pile is the same, the power is distributed equally. When the capacity of each charging pile is different, the charging power of the vehicle is satisfied as much as possible without exceeding the safety limit of each charging port of the vehicle.

[0043] Each charging station provides power to new energy devices in real time according to the charging power settings issued by the simulation station, and reports its real-time charging data to the simulation station.

[0044] Under normal circumstances, in order to ensure the charging needs of vehicles while taking into account the lifespan and performance of the charging piles, the power demand is usually distributed among multiple charging piles.

[0045] The simulated charging piles aggregate real-time charging information from each pile and report it to the platform for subsequent settlement.

[0046] S4. The simulated charging pile receives a power reduction request from one of the target charging piles, determines the power reduction amount based on the power reduction request, and adjusts the charging power of the remaining target charging piles that have not initiated the power reduction request based on the power reduction amount.

[0047] In this embodiment, due to the existence of other strategies or the control strategies of the charging pile itself, such as a certain charging pile in the collaborative operation needing to reduce its output due to the influence of gun temperature, pile internal temperature, etc., the simulated pile can report its current maximum output capacity. After the simulated pile learns this, it can adjust other collaborative charging piles to make up for the missing power in order to meet the vehicle's needs to the greatest extent.

[0048] In this embodiment, for example, in a three-gun coordinated scenario, each vehicle outlet is designed according to national standards with a maximum current of 250A, while the vehicle's maximum demand is 360A. Piles A, B, and C each have a capacity of 180kW and a maximum current of 250A; therefore, based on the real-time demand of the vehicle obtained from pile A, the current is evenly distributed among the simulated piles.

[0049] If the power reported by piles B and C needs to be reduced due to temperature or other factors, the simulation pile will lower the output setting of piles B and C, and instead increase the output setting of pile A.

[0050] Please refer to Figure 5 Embodiment two of the present invention is as follows: A coordination device 1 includes a processor 2, a memory 3, and a computer program stored in the memory 3 and executable on the processor 2. When the processor 2 executes the computer program, it implements the steps in the charging management method for new energy devices supporting simultaneous charging of multiple charging guns as described in Embodiment 1 above.

[0051] In summary, this invention provides a charging management method and coordination device for new energy equipment that supports simultaneous charging of multiple charging guns. It establishes a virtual logical entity simulating a charging pile, coordinates the power allocation of target charging piles, and uniformly schedules multiple charging piles. It does not require modification of the original single-pile, single-gun hardware, and achieves multi-pile collaborative charging at low cost. It can flexibly combine any number of charging piles within the station, breaking the fixed combination restrictions. At the same time, it disguises the upper-level platform as a single-pile interaction, is compatible with existing EMS systems, and is suitable for various single-BMS multi-charging-port devices, improving charging efficiency and dispersing thermal management risks.

[0052] This invention, by adding a simulated charging pile coordinator, enables existing fast-charging stations with single-pile, single-gun charging stations to achieve simultaneous charging of two charging guns for the same vehicle (vehicles with a single BMS system require two charging ports to coordinate power allocation) without modification to the platform or EMS communication. There are no fixed equipment combinations; the combination and coordination of charging piles and lines within the site can be arbitrarily set. This is particularly helpful in addressing the pain point of being unable to achieve simultaneous multi-gun charging when a piece of equipment in the original fixed charging pile combination is malfunctioning or under maintenance.

[0053] It allows for quick and minimal upgrades to existing fast charging stations, supporting simultaneous charging of one vehicle at multiple stations. It is suitable for use by customers in existing car charging stations who wish to quickly switch to charging heavy trucks, buses, and logistics vehicles. The basic single-pile, single-gun hardware requires no changes; only a master / auxiliary mode is added to the software. It is compatible with normal charging and allows for rapid switching.

[0054] The addition of the simulated pile coordinator allows for flexible use of multiple piles at the site, enabling one vehicle to operate with two or four guns. In addition, the ability to select piles in the main / auxiliary mode avoids fixed gun line positions, providing greater flexibility. When there are enough gun lines, piles can be combined arbitrarily.

[0055] It is suitable for single BMS interaction systems, but supports multi-gun charging [multi-charging port] equipment applications; it is not limited to a fixed combination of a single pile and dual gun equipment, it is flexible and versatile, and can be expanded to charge multiple guns in one vehicle. It is suitable for high-capacity equipment applications such as aircraft, electric ships, heavy trucks, and rail buses.

[0056] No additional high-cost modifications to water cooling and charging port design are required; power input is distributed, simplifying control complexity.

[0057] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for simultaneous charging of multiple guns based on virtual piles, characterized in that, Including the following steps: S1. Receive the user's request for simultaneous charging at multiple charging stations, and determine all target charging stations selected by the user based on the request for simultaneous charging at multiple charging stations. S2. Establish a virtual logical entity for the simulated charging pile. The simulated charging pile connects to the new energy equipment through the target charging pile to obtain the maximum charging power of the new energy equipment. The target charging pile includes the main charging pile and other charging piles. S3. The simulated charging pile, based on the maximum charging power, distributes the maximum charging power equally to all the target charging piles when the capacity of each pile is the same, and the target charging piles supply power to the new energy equipment according to the allocated power. When the capacity of each charging pile is different, the charging power of the vehicle shall be met without exceeding the safety limit of each charging port of the vehicle. S4. The simulated charging pile receives a power reduction request from a target charging pile, determines the power reduction amount based on the power reduction request, and adjusts the charging power of the remaining target charging piles that have not initiated the power reduction request based on the power reduction amount. In the method, the virtual logical entity of the simulated pile is also used to disguise the interaction with the upper platform as a single pile.

2. The method for simultaneous charging of multiple guns based on virtual piles according to claim 1, characterized in that, Based on the multi-charging request, all target charging stations selected by the user are determined as follows: The user selects the main charging pile based on the multi-pile simultaneous charging request. In step S2, the simulated charging pile connects to the target charging pile and the new energy equipment to obtain the maximum charging power of the new energy equipment, including: The simulated charging pile establishes a communication connection with the new energy equipment through the main charging pile, and obtains the maximum charging power of the new energy equipment through the established communication connection.

3. The method for simultaneous charging of multiple guns based on virtual piles according to claim 1, characterized in that, The steps between step S2 and step S3 include: S21. The simulated pile performs insulation verification on the main charging pile and obtains the insulation verification result. Step S3 is only entered when the insulation test is passed. The insulation confirmation result is initiated by the main charging pile to the new energy equipment, and the new energy equipment generates the result based on the line insulation detection with each of the target charging piles.

4. A coordination device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it performs the following steps: S1. Receive the user's request for simultaneous charging at multiple charging stations, and determine all target charging stations selected by the user based on the request for simultaneous charging at multiple charging stations. S2. Establish a virtual logical entity for the simulated charging pile. The simulated charging pile connects to the new energy equipment through the target charging pile to obtain the maximum charging power of the new energy equipment. The target charging pile includes the main charging pile and other charging piles. S3. The simulated charging pile, based on the maximum charging power, distributes the maximum charging power equally to all the target charging piles when the capacity of each pile is the same, and the target charging piles supply power to the new energy equipment according to the allocated power. When the capacity of each charging pile is different, the charging power of the vehicle should be met as much as possible without exceeding the safety limit of each charging port of the vehicle. S4. The simulated charging pile receives a power reduction request from a target charging pile, determines the power reduction amount based on the power reduction request, and adjusts the charging power of the remaining target charging piles that have not initiated the power reduction request based on the power reduction amount. The virtual logical entity of the simulated pile is also used to disguise the interaction with the upper-level platform as a single pile.

5. A coordination device according to claim 4, characterized in that, Based on the multi-charging request, all target charging stations selected by the user are determined as follows: The user selects the main charging pile based on the multi-pile simultaneous charging request. In step S2, the simulated charging pile connects to the target charging pile and the new energy equipment to obtain the maximum charging power of the new energy equipment, including: The simulated charging pile establishes a communication connection with the new energy equipment through the main charging pile, and obtains the maximum charging power of the new energy equipment through the established communication connection.

6. A coordination device according to claim 4, characterized in that, The steps between step S2 and step S3 include: S21. The simulated pile performs insulation verification on the main charging pile and obtains the insulation verification result. Step S3 is only entered when the insulation test is passed. The insulation confirmation result is initiated by the main charging pile to the new energy equipment, and the new energy equipment generates the result based on the line insulation detection with each of the target charging piles.

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