Direct current charging pile combined charging management method, system, device and platform
By merging the output power of multiple DC charging piles and dynamically allocating power, the problem of high cost of high-power charging piles and idle low-power charging piles is solved, realizing fast high-power charging and flexible control of new energy vehicles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI CHUYUAN INTERNET OF THINGS TECHNOLOGY CO LTD
- Filing Date
- 2025-11-09
- Publication Date
- 2026-04-21
AI Technical Summary
In existing charging stations, high-power charging pile equipment is expensive, while low-power and outdated charging pile equipment is idle and has low utilization efficiency, which cannot meet the high-power charging needs of new energy vehicles. In addition, the existing flexible charging technology of charging piles is not flexible enough and it is difficult to achieve dynamic power distribution among multiple charging piles.
By merging the output power of multiple DC charging piles and connecting them in parallel or series using centralized cables, the power is dynamically distributed to achieve fast charging of electric vehicles, ensuring that the original independent charging function is not affected and that the maximum charging power in the independent state is exceeded.
It enables fast, high-power charging of electric vehicles, improves charging efficiency, reduces equipment investment costs, utilizes existing charging piles for retrofitting, avoids high investment, and is suitable for flexible charging control of new energy vehicles.
Smart Images
Figure CN121893791A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of charging control technology, and in particular to the field of combined charging technology for DC charging piles for new energy vehicles. Background Technology
[0002] With the rapid development of new energy vehicle battery technology, electric vehicles have increasingly higher technical requirements for DC charging piles, among which the demand for high-power fast charging is the most urgent. However, due to the fact that the construction of charging stations in the past was mainly based on DC charging piles of around 60KW, many charging piles on the market cannot meet the fast charging needs of current models that require charging power of 200KW or more. In particular, more and more heavy-duty freight electric vehicles are on the road, which have higher requirements for charging power. However, the equipment manufacturing cost of high-power charging piles is expensive, the investment return cycle is long and the promotion is limited, while low-power old DC charging piles are idle, resulting in waste of resources, low efficiency when used barely, and face the situation of being eliminated.
[0003] On the other hand, the existing technology for combining and distributing the output power of charging piles is the flexible charging technology of charging stacks. It uses a charging stack with a centralized output of high power and multiple charging guns to charge multiple electric vehicles. The output is dynamically adjusted according to the charging power demand of each electric vehicle, which can effectively distribute electrical energy to the corresponding electric vehicle and improve the efficiency of equipment use. Its drawbacks are high manufacturing cost, easy failure of the whole system due to a certain point of failure, and insufficient flexibility.
[0004] Therefore, unlike the existing flexible charging technology principles of charging piles, the technical challenge in this field is how to combine low-power independent DC charging piles to achieve high-power fast charging for electric vehicles. Furthermore, the technology to dynamically distribute power among the original independent DC charging piles without affecting their original independent charging function for electric vehicles, while exceeding their original maximum charging power to achieve fast charging for electric vehicles, is an even greater technical challenge. Older charging stations urgently need this kind of transformation, but there has been no technological breakthrough yet. Summary of the Invention
[0005] In view of the above technical background, the purpose of this application is to provide a method, system, platform, and device for managing combined charging of DC charging piles, which combines the output power of multiple DC charging piles to quickly charge electric vehicles, and dynamically distributes the output power among the combined charging DC charging piles, so as to achieve the function of not affecting their original independent charging of electric vehicles, while exceeding their original maximum charging power for fast charging of electric vehicles. Firstly, to achieve the above objectives, this application provides a method for managing combined charging of DC charging piles, applicable to one or more of a combined charging control device, a DC charging pile, and a cloud server, including: Obtain a charging request, the charging request including a required voltage and / or a required current; Based on the charging request, determine the main pile and / or auxiliary pile and their corresponding charging data, the charging data including charging voltage and / or charging current; A charging command is triggered and sent to the corresponding combined charging control device and / or the DC charging pile, wherein the charging command carries the charging data; The main pile and / or the auxiliary pile are connected by a centralized cable; both the main pile and the auxiliary pile include one or more of the DC charging piles; the combined charging control device is connected to and controls the DC charging piles; the main pile is used to connect to the electric vehicle for charging, and the auxiliary pile is used to combine the output power to the main pile in parallel and / or in series through the centralized cable to increase the charging power of the electric vehicle; the combined charging control device is communicatively connected to a cloud server and / or to each of the combined charging control devices.
[0006] Optionally, the above-mentioned DC charging pile combined charging management method, applied to the main pile and / or the corresponding combined charging control device, includes: The signal of the charging gun connecting to the electric vehicle charging dock is obtained through the detection module; Control the first switching device to connect the charging output to the charging gun; The first voltage divider module enables the first main control module of the main pile to obtain the charging gun connection to the charging base signal; Obtain the first communication message sent by the first main control module through the first CAN communication module; The first communication message is modified according to the charging data and sent to the vehicle controller through the second CAN communication module. The vehicle controller sends a second communication message through the second CAN communication module. The second communication message is modified according to the charging data and sent to the first main control module through the first CAN communication module; The combined charging control device includes a first switching device, a first main control MCU, a first CAN communication module, and a second CAN communication module. The first switching device connects the charging output terminal of the main pile to the charging gun and the centralized cable to connect or disconnect any two of the three. The first CAN communication module connects to the CAN communication port of the first main control module, and the second CAN communication module connects to the S+ and S- wires of the charging gun. The combined charging control device also includes a first voltage divider module connected to the CC1 port of the first main control module to provide the first main control module with a signal indicating whether the charging gun is connected to the charging socket. The combined charging control device also includes a detection module connected to the CC1 line of the charging gun to provide the first main control MCU with a signal indicating whether the charging gun is connected to the trolley charging socket.
[0007] Optionally, the above-mentioned DC charging pile combined charging management method, applied to the auxiliary charging pile and / or the corresponding combined charging control device, includes: Obtain the charging command; The second switching device is controlled to connect the charging output to the central cable; The second voltage divider module is controlled to enable the second main control module of the auxiliary pile to obtain a signal that the charging gun is connected to the trolley charging base; Obtain the third communication message sent by the second main control module through the third CAN communication module; The fourth communication message is triggered according to the charging command and sent to the second main control module through the third CAN communication module; The combined charging control device includes a second switching device, a second main control MCU, and a third CAN communication module. The second switching device connects the charging output terminal of the auxiliary pile to the charging gun and the central cable to connect or disconnect any two of the three. The third CAN communication module connects to the CAN communication port of the second main control module. The second combined charging control device also includes a second voltage divider module connected to the CC1 port of the second main control module to provide the second main control module with a signal for the charging gun to connect to the charging socket.
[0008] Secondly, in order to achieve the above objectives, this application provides a DC charging pile combined charging management system, which is applied to one or more of a combined charging control device, a DC charging pile, and a cloud server, and includes: The request acquisition module is used to acquire charging requests, which include the required voltage and / or required current. The acquisition methods include one or more of the following: being sent by a cloud server, being obtained by the DC charging pile through interaction with the electric vehicle via national standard communication messages, or being obtained through human-machine interaction. The charging calculation and allocation module is used to calculate and allocate the corresponding main piles and / or auxiliary piles and their charging data according to the charging requirements to meet the charging requirements. The charging data includes charging voltage and / or charging current. The first request response module is used to trigger a corresponding charging command based on the main pile and / or auxiliary pile and their charging data generated by the charging calculation and allocation module, and send the command to the corresponding main pile and / or auxiliary pile. The main pile and / or the auxiliary pile are connected by a centralized cable; both the main pile and the auxiliary pile include one or more of the DC charging piles; the combined charging control device is connected to and controls the DC charging piles; the main pile is used to connect to the electric vehicle for charging, and the auxiliary pile is used to combine the output power to the main pile in parallel and / or in series through the centralized cable to increase the charging power of the electric vehicle; the combined charging control device is communicatively connected to a cloud server and / or to each of the combined charging control devices.
[0009] Optionally, the above-mentioned DC charging pile combined charging management system, applied to the main charging pile and / or the corresponding combined charging control device, includes: The first signal acquisition module is used to acquire the signal of the charging gun connecting to the electric vehicle charging dock; The first control switch module is used to control the first switching device to connect the charging gun to the charging output and / or centralized cable of the charging pile; The first signal output module is used to enable the first main control module of the main pile to obtain the charging gun connection to the charging base signal; The first communication message acquisition module is used to acquire the first communication message sent by the first main control module through the first CAN communication module. The first communication message modification and sending module is used to modify the first communication message according to the charging data and send it to the vehicle controller through the second CAN communication module. The second communication message acquisition module is used to acquire the second communication message sent by the vehicle controller through the second CAN communication module. The second communication message modification and sending module is used to modify the second communication message according to the charging data and send it to the first main control module through the first CAN communication module. The combined charging control device includes a first switching device, a first main control MCU, a first CAN communication module, and a second CAN communication module. The first switching device connects the charging output terminal of the main pile to the charging gun and the centralized cable to connect or disconnect any two of the three. The first CAN communication module connects to the CAN communication port of the first main control module, and the second CAN communication module connects to the S+ and S- wires of the charging gun. The combined charging control device also includes a first voltage divider module connected to the CC1 port of the first main control module to provide the first main control module with a signal indicating whether the charging gun is connected to the charging socket. The combined charging control device also includes a detection module connected to the CC1 line of the charging gun to provide the first main control MCU with a signal indicating whether the charging gun is connected to the trolley charging socket.
[0010] Optionally, the above-mentioned DC charging pile combined charging management system, applied to the auxiliary charging pile and / or the corresponding combined charging control device, includes: A charging instruction acquisition module is used to acquire the charging instruction; The second control switch module is used to control the second switching device to connect the charging gun to the charging output and / or centralized cable of the charging pile; The second signal output module is used to enable the second main control module of the auxiliary pile to obtain the signal that the charging gun is connected to the trolley charging base; The third communication message acquisition module is used to acquire the third communication message sent by the second main control module through the third CAN communication module; The third communication message triggering module triggers a fourth communication message according to the charging command and sends it to the second main control module through the third CAN communication module; The combined charging control device includes a second switching device, a second main control MCU, and a third CAN communication module. The second switching device connects the charging output terminal of the auxiliary pile to the charging gun and the central cable to connect or disconnect any two of the three. The third CAN communication module connects to the CAN communication port of the second main control module. The second combined charging control device also includes a second voltage divider module connected to the CC1 port of the second main control module to provide the second main control module with a signal for the charging gun to connect to the charging socket.
[0011] Thirdly, to achieve the above objectives, this application provides a combined charging control device, including a control module and a switching device. The switching device connects the charging output terminal of the DC charging pile, the charging gun, and the centralized cable, and is used to connect or disconnect any two of these three components under the control of the control module, so as to combine the output power of the DC charging pile into the centralized cable in parallel and / or in series to increase the power of the combined charging of the trolleybus. The combined charging control device is communicatively connected to a cloud server and / or to each of the combined charging control devices.
[0012] Optionally, as described above, the control module includes a main control MCU, a first CAN communication module, a second CAN communication module, a voltage divider module, and a detection module; the first CAN communication module is connected to the CAN communication port of the main control module of the DC charging pile, and the second CAN communication module is connected to the S+ and S- wires of the charging gun; the voltage divider module is connected to the CC1 port of the main control module to provide the main control module with a signal indicating whether the charging gun is connected to the charging socket; the detection module is connected to the CC1 line of the charging gun to provide the main control MCU with a signal indicating whether the charging gun is connected to the electric vehicle charging socket.
[0013] Fourthly, in order to achieve the above objectives, this application provides a DC charging pile combined charging retrofit system, including the combined charging control device as described above, and also includes a memory for storing computer programs and a processor for executing the computer programs to realize the DC charging pile combined charging management method as described above.
[0014] Fifthly, in order to achieve the above objectives, this application provides a DC charging pile combined charging management platform, including the DC charging pile combined charging transformation system and / or cloud server as described above, to realize the centralized and rapid charging of electric vehicles by merging multiple charging piles.
[0015] The DC charging pile combined charging management method, system, device and platform provided in this application combine the output of independent DC charging piles to perform high-power fast charging of electric vehicles, and further dynamically allocate charging power among DC charging piles. This achieves a new technology for flexible control of new energy vehicle charging without affecting their original function of independently charging electric vehicles, while exceeding their original maximum charging power in their original independent state.
[0016] The present application and its working principle are further explained below with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the combined charging control device disclosed in an embodiment of this application; Figure 2 This is a schematic diagram of the control module structure of the combined charging control device disclosed in an embodiment of this application; Figure 3 This is a flowchart of the DC charging pile combined charging management method disclosed in the embodiments of this application; Figure 4 This is a flowchart of the DC charging pile combined charging management method disclosed in the embodiments of this application; Figure 5 This is a flowchart of the DC charging pile combined charging management method disclosed in the embodiments of this application; Figure 6 This is a schematic diagram of the DC charging pile combined charging management system disclosed in the embodiments of this application; Figure 7 This is a schematic diagram of the DC charging pile combined charging management system disclosed in the embodiments of this application; Figure 8 This is a schematic diagram of the DC charging pile combined charging management system disclosed in the embodiments of this application. Detailed Implementation
[0018] This application discloses a combined charging control device, as shown in the attached figure. Figure 1 As shown, the system includes a first control module 1 connected to a first switching module 2 to control a first DC charging pile 3; a second control module 4 connected to a second switching module 5 to control a second DC charging pile 6; and a third control module 7 connected to a third switching module 8 to control a third DC charging pile 9. The first switching module 2 includes a first contactor 10 and a second contactor 11; the second switching module 5 includes a third contactor 12 and a fourth contactor 13; the third switching module 5 includes a fifth contactor 14 and a sixth contactor 15; and a central cable for connecting each DC charging pile to the aforementioned components. Figure 1 The circuits shown are interconnected. The first control module 1, the second control module 4, and the third control module 7 form a communication network via a 485 bus or a CAN bus to exchange information and communicate with a cloud server. Their structural principle is shown in the attached figure. Figure 2 As shown, the system includes a main control MCU 16, a voltage divider module 19, a detection module 20, and a switch module 21 for controlling the contactor's on / off state. The main control MCU 16 contains dual CAN controllers, which, together with external CAN transceiver chips, form a first CAN communication module 17 and a second CAN communication module 18. The first CAN communication module 17 connects to the CAN_H_M and CAN_L_M ports of the corresponding DC charging pile main control module, enabling communication message exchange between the main control MCU 16 and the DC charging pile main control module according to national standards. The second CAN communication module 18 connects to the CAN_H_M and CAN_L_M ports of the DC charging pile's charging gun, i.e., to the S+ and S- wires of the charging gun, enabling communication message exchange between the main control MCU 16 and the vehicle controller of the trolley according to national standards.
[0019] This application discloses a DC charging pile combined charging management method, applied to the first control module 1, the second control module 4, and the third control module 7 of the combined charging control device. See [link to documentation]. Figure 3 The method includes: Step S11: Obtain a charging request, which includes the electric vehicle's required voltage and / or required current.
[0020] In this step, the charging gun is connected to the trolley charging station. The control module corresponding to the charging gun communicates with the trolley's vehicle controller according to national standards to obtain the corresponding trolley's charging power requirements. If the vehicle controller's required power exceeds the charging station's maximum output power, the main control MCU16 sends information to the control modules of other charging stations to control the output power to be combined into a centralized cable to meet the vehicle controller's power requirements.
[0021] Step S12: Determine the main pile and / or auxiliary pile and their corresponding charging data according to the charging request. The charging data includes the charging voltage and / or charging current.
[0022] In this step, after obtaining the charging voltage and / or current demand of the trolley, the control module determines the main charging pile and auxiliary charging pile and their corresponding output current and voltage to provide combined charging for the trolley based on the charging rules of information exchange between the control modules and the charging status of each DC charging pile. The main charging pile is connected to the trolley for charging, and the auxiliary charging pile connects the output power to the main charging pile through a centralized cable to increase the charging power of the trolley. Any one of the three DC charging piles, namely the first DC charging pile 3, the second DC charging pile 6, and the third DC charging pile 9, can be used as the main charging pile, while the other two or one charging pile can be used as auxiliary charging piles. The DC charging pile where the charging gun is connected to the trolley charging base is the main charging pile.
[0023] Step S13: Trigger a charging command and send the charging command to the main pile and / or the auxiliary pile. The charging command carries charging data.
[0024] In this step, after determining the main charging pile and / or auxiliary charging pile and their corresponding charging data, the control module determines the charging current and voltage of the main charging pile. It then transmits the charging current and voltage of the auxiliary charging pile to the corresponding auxiliary charging pile's control module, enabling it to control the auxiliary charging pile's output power to be combined with the centralized cable. Each control module can communicate with each other and precisely control the corresponding charging pile to output power according to the required charging power demand of the trolleybus, combining their output power to meet the trolleybus's charging power requirements.
[0025] This application discloses a method for managing combined charging of DC charging piles, and further, it is applied to the control module corresponding to the main charging pile. See attached diagram. Figure 4 The method includes: Step S21: Obtain the signal of the charging gun connecting to the trolley charging dock through the detection module.
[0026] In this step, as the control module of the main charging pile, the charging gun is connected to the trolley charging dock. The main control MCU16 then detects the charging gun connection signal through the detection module 19. (See appendix) Figure 2 When the voltage at the ADC port changes, the main control MCU16 can determine whether the charging gun is connected to the trolley charging socket by detecting the voltage value at the ADC port.
[0027] Step S22: Control the main pile's corresponding switching module to connect the charging output to the charging gun, and connect the auxiliary pile's charging output in parallel to the charging gun.
[0028] Taking the first DC charging pile 3 as an example, its output power has the following four application states. State 1: When the first contactor 10 is on and the second contactor 11 is off, the output power of the auxiliary pile is connected in parallel with the positive terminal 22 and the negative terminal 23 of the parallel power supply, and the output power can be combined to charge other charging piles for electric vehicles. State 2: When the first contactor 10 is off and the second contactor 11 is on, the output power is connected back to the charging gun of the first DC charging pile 3, and the first DC charging pile 3 can charge electric vehicles independently, retaining its original independent operation function. State 3: When the first contactor 10 is on and the second contactor 11 is also on, the output power of the main pile can be connected in parallel with the output power of other charging piles to charge electric vehicles with increased power. State 4: When the first contactor 10 is off and the second contactor 11 is also off, the first DC charging pile 3 is in standby state. In this step, as the main pile, State 3 should be executed, and the main control MCU 16 controls the output of the switch module 20 to connect the first contactor 10 and the second contactor 11.
[0029] Step S23: The voltage divider module enables the main control module of the main pile to obtain the charging gun connection to the charging base signal.
[0030] In this step, please refer to the appendix. Figure 2 The voltage divider module 19 is connected to the main control MCU 16. When the main control MCU 16 controls the OUT port to output a high level, the MOS transistor Q is turned on. The 1000-ohm resistor R1 is connected to the CC1_M port of the DC charging pile main control module. The DC charging pile main control module can detect the signal equivalent to the charging gun being connected to the electric vehicle charging base.
[0031] Step S24: Obtain the first communication message sent by the main pile control module through the first CAN communication module.
[0032] In this step, after the main control module of the main pile receives the signal that the charging gun is connected to the charging base, it begins to exchange communication messages according to the national standard. The main control MCU16 receives the first communication message sent by the main control module of the main pile.
[0033] Step S25: Modify the first communication message according to the merged charging data and send it to the vehicle controller through the second CAN communication module.
[0034] In this step, the main control MCU16 modifies the content of the first communication message according to the national standard specifications based on the charging power of the main pile and the auxiliary pile combined, including the charging voltage and the charging current, determined in step S12, and sends it to the vehicle controller through the second CAN communication module 18, so that the vehicle controller can recognize the output power data of the combined charging rather than just the output power data of the main pile itself.
[0035] Step S26: Obtain the second communication message sent by the vehicle controller through the second CAN communication module.
[0036] In this step, the main control MCU16 interacts with the vehicle controller according to national standards, and the main control MCU16 receives the second communication message sent by the vehicle controller through the second CAN communication module.
[0037] Step S27: Modify the second communication message according to the charging data and send it to the charging pile main control module through the first CAN communication module.
[0038] In this step, the main control MCU16 modifies the content of the second communication message according to the charging voltage and charging current of the main pile determined in step S12, and sends it to the main control module of the main pile through the first CAN communication module 17. This causes the main control module of the main pile to receive charging data that does not exceed the output power limit of the pile itself, rather than the output power data of combined charging. In other words, it induces the main control module of the main pile to recognize the second communication message that conforms to the national standard and is no different from the one sent directly by the vehicle controller, and thus start outputting electrical energy.
[0039] This application discloses a method for managing combined charging of DC charging piles, and further, it is applied to the control module corresponding to the auxiliary charging pile. See [link to relevant documentation]. Figure 5 The method includes: Step S31: Obtain charging command.
[0040] In this step, the main control MCU16 of the control module corresponding to the auxiliary pile receives the charging command sent by the main pile according to step S13. The command carries the charging power that the pile needs to output, including the charging current and the charging voltage.
[0041] Step S32: Control the switching module corresponding to the auxiliary pile to connect the charging output to the centralized cable and disconnect the charging gun.
[0042] Taking the second DC charging pile 6 as an example, its output power has the following four application states. State 1: When the third contactor 12 is on and the fourth contactor 13 is off, the output power of the auxiliary pile is connected in parallel with the positive terminal 22 and the negative terminal 23 of the parallel power supply, and the output power can be combined to charge other charging piles for electric vehicles. State 2: When the third contactor 12 is off and the fourth contactor 13 is on, the output power is connected back to the charging gun of the second DC charging pile 6, and the second DC charging pile 6 can charge electric vehicles independently, retaining its original independent operation function. State 3: When the third contactor 12 is on and the fourth contactor 13 is also on, the output power of the main pile can be connected in parallel with the output power of other charging piles to charge electric vehicles with increased power. State 4: When the third contactor 12 is off and the fourth contactor 13 is also off, the second DC charging pile 6 is in standby mode. In this step, as an auxiliary pile, State 1 should be executed, that is, the main control MCU 16 controls the output of the switch module 20 to connect the third contactor 12 and disconnect the fourth contactor 13.
[0043] Step S33: Control the voltage divider module to enable the main control module of the charging pile to obtain the signal that the charging gun is connected to the charging dock of the electric vehicle.
[0044] In this step, when the charging gun is not connected to the EV charging dock, the detection module 19 is connected to the CC1_Q port of the DC charging pile, i.e., the CC1 line of the charging gun. The main control MCU 16, corresponding to the secondary charging pile, does not detect the signal that the charging gun is connected to the EV charging dock. However, according to the charging command in step S31, the main control MCU 16 controls the OUT port to output a high level, allowing the secondary charging pile's main control module to detect the signal that the charging gun is connected to the EV charging dock. (See appendix) Figure 2 The voltage divider module 19 is connected to the main control MCU 16. When the main control MCU 16 controls the OUT port to output a high level, the MOS transistor Q is turned on. The 1000-ohm resistor R1 is connected to the CC1_M port of the DC charging pile main control module. The auxiliary pile main control module can detect the signal equivalent to the charging gun being connected to the electric vehicle charging base.
[0045] Step S34: Obtain the first communication message sent by the DC charging pile main control module through the first CAN communication module.
[0046] In this step, after the main control module of the auxiliary pile receives the signal that the charging gun is connected to the charging base, it begins to exchange communication messages according to the national standard. The main control MCU16 receives the first communication message sent by the main control module of the auxiliary pile.
[0047] Step S35: Trigger the second communication message according to the charging command and send it to the charging pile main control module through the first CAN communication module.
[0048] In this step, the main control MCU16 generates the second communication message according to the charging power, including charging current and charging voltage, carried by the charging command in step S31, and sends it to the auxiliary pile main control module through the first CAN communication module 17. This induces the auxiliary pile main control module to recognize the second communication message that conforms to the national standard and is no different from the one sent by the vehicle controller, and thus start outputting electrical energy.
[0049] This application discloses a DC charging pile combined charging management system, which is applied to three control modules: a first control module 1, a second control module 4, and a third control module 7, in the combined charging control device. (See also...) Figure 6 ,include: Request acquisition module 24 is used to acquire charging requests, which include the required voltage and / or required current. The acquisition method includes obtaining the request from the DC charging pile through interaction with the electric vehicle via national standard messages. The charging calculation and allocation module 25 is used to calculate and allocate the corresponding main piles and / or auxiliary piles and their charging data according to the charging demand to meet the charging demand. The charging data includes charging voltage and / or charging current. The first request response module 26 is used to trigger a corresponding charging command based on the main pile and / or auxiliary pile and their charging data generated by the charging calculation and allocation module, and send the command to the corresponding main pile and / or auxiliary pile.
[0050] This application discloses a DC charging pile combined charging management system, which is further applied to the main charging pile. See also... Figure 7 ,include: The first signal acquisition module 27 is used to acquire the signal of the charging gun being connected to the electric vehicle charging dock. The first control switch module 28 is used to control the corresponding switching module to connect the charging output to the charging gun. The first signal output module 29 is used to enable the main control module of the main pile to obtain the signal that the charging gun is connected to the charging base. The first communication message acquisition module 30 is used to acquire the first communication message sent by the main control module of the main pile through the first CAN communication module. The first communication message modification and transmission module 31 is used to modify the first communication message according to the charging data and send it to the vehicle controller through the second CAN communication module. The second communication message acquisition module 32 is used to acquire the second communication message sent by the vehicle controller through the second CAN communication module. The second communication message modification and sending module 33 is used to modify the second communication message according to the charging data and send it to the main control module of the main pile through the first CAN communication module. This application discloses a DC charging pile combined charging management system, which is further applied to auxiliary charging piles. See also... Figure 8,include: Charging instruction acquisition module 34 is used to acquire charging instructions; The second control switch module 35 is used to control the auxiliary pile's switching module to connect the charging output to the central cable; The second signal output module 36 is used to enable the auxiliary pile main control module to obtain the signal that the charging gun is connected to the trolley charging base. The third message acquisition module 37 is used to acquire the first communication message sent by the auxiliary pile main control module through the first CAN communication module. The third message triggering module 38 generates a second communication message according to the charging command and sends it to the auxiliary pile main control module through the second CAN communication module. This application discloses a DC charging pile combined charging transformation system, including the combined charging control device as described above, and a memory for storing computer programs and a processor for executing the computer programs to realize the DC charging pile combined charging management method as described above.
[0051] This application discloses a DC charging pile combined charging management platform, including the DC charging pile combined charging transformation system and / or cloud server as described above, to realize the centralized and rapid charging of electric vehicles by merging the output power of multiple charging piles.
[0052] The DC charging pile combined charging management method, system, device, and platform disclosed in this application intelligently combine and control the charging of three DC charging piles that were originally used independently. By combining the output power through a centralized cable, high-power fast charging of electric vehicles can be achieved. The charging power is dynamically distributed among the DC charging piles, which does not affect the original function of the charging piles to charge electric vehicles independently. At the same time, the charging piles can combine the output power of other charging piles to exceed their original maximum charging power in their independent state for fast charging of electric vehicles. This allows charging stations to make low-investment supercharging upgrades using old, independently used low-power charging piles, avoiding the high investment of purchasing new equipment, and can also achieve the purpose of high-power fast charging of electric vehicles, especially heavy trucks.
[0053] The national standards mentioned in this application and this embodiment refer to Chinese standard GB / T 18487.1-2023 Electric Vehicle Conductive Charging System Part 1: General Requirements and Chinese standard GB / T 27930-2023 Digital Communication Protocol between Off-board Conductive Chargers and Electric Vehicles, as well as other related national standards. This embodiment is attached. Figure 1 Appendix Figure 2 These are not complete circuit diagrams, but rather schematic diagrams of circuit principles, used to help understand the technical solutions of this embodiment. (See attached diagram.) Figure 1 Appendix Figure 2 Based on this, those skilled in the art can derive a complete circuit schematic and implement this embodiment.
[0054] The above provides a detailed description of the DC charging pile combined charging management method, system, device, and platform provided in this application. The description of this embodiment is only for the purpose of helping to understand the method and its core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A method for managing combined charging of DC charging piles, characterized in that it is applied to one or more of the following: a combined charging control device, a DC charging pile, and a cloud server, including: Obtain a charging request, the charging request including a required voltage and / or a required current; Based on the charging request, determine the main pile and / or auxiliary pile and their corresponding charging data, the charging data including charging voltage and / or charging current; A charging command is triggered and sent to the corresponding combined charging control device and / or the DC charging pile, wherein the charging command carries the charging data; The main pile and / or the auxiliary pile are connected by a centralized cable; both the main pile and the auxiliary pile include one or more of the DC charging piles; the combined charging control device is connected to and controls the DC charging piles; the main pile is used to connect to the electric vehicle for charging, and the auxiliary pile is used to combine the output power to the main pile in parallel and / or in series through the centralized cable to increase the charging power of the electric vehicle; the combined charging control device is communicatively connected to a cloud server and / or to each of the combined charging control devices.
2. The DC charging pile combined charging management method as described in claim 1, characterized in that it is applied to the main charging pile and / or the corresponding combined charging control device, comprising: The signal of the charging gun connecting to the electric vehicle charging dock is obtained through the detection module; Control the first switching device to connect the charging output to the charging gun; The first voltage divider module enables the first main control module of the main pile to obtain the charging gun connection to the charging base signal; Obtain the first communication message sent by the first main control module through the first CAN communication module; The first communication message is modified according to the charging data and sent to the vehicle controller through the second CAN communication module. The vehicle controller sends a second communication message through the second CAN communication module. The second communication message is modified according to the charging data and sent to the first main control module through the first CAN communication module; The combined charging control device includes a first switching device, a first main control MCU, a first CAN communication module, and a second CAN communication module. The first switching device connects the charging output terminal of the main pile to the charging gun and the centralized cable to connect or disconnect any two of the three. The first CAN communication module connects to the CAN communication port of the first main control module, and the second CAN communication module connects to the S+ and S- wires of the charging gun. The combined charging control device also includes a first voltage divider module connected to the CC1 port of the first main control module to provide the first main control module with a signal indicating whether the charging gun is connected to the charging socket. The combined charging control device also includes a detection module connected to the CC1 line of the charging gun to provide the first main control MCU with a signal indicating whether the charging gun is connected to the trolley charging socket.
3. The DC charging pile combined charging management method as described in claim 1 or 2, characterized in that it is applied to the auxiliary charging pile and / or the corresponding combined charging control device, comprising: Obtain the charging command; The second switching device is controlled to connect the charging output to the central cable; The second voltage divider module is controlled to enable the second main control module of the auxiliary pile to obtain a signal that the charging gun is connected to the trolley charging base; Obtain the third communication message sent by the second main control module through the third CAN communication module; The fourth communication message is triggered according to the charging command and sent to the second main control module through the third CAN communication module; The combined charging control device includes a second switching device, a second main control MCU, and a third CAN communication module. The second switching device connects the charging output terminal of the auxiliary pile to the charging gun and the central cable to connect or disconnect any two of the three. The third CAN communication module connects to the CAN communication port of the second main control module. The second combined charging control device also includes a second voltage divider module connected to the CC1 port of the second main control module to provide the second main control module with a signal for the charging gun to connect to the charging socket.
4. A DC charging pile combined charging management system, characterized in that it is applied to one or more of the following: a combined charging control device, a DC charging pile, and a cloud server, and includes: The request acquisition module is used to acquire charging requests, which include the required voltage and / or required current. The acquisition methods include one or more of the following: being sent by a cloud server, being obtained by the DC charging pile through interaction with the electric vehicle via national standard communication messages, or being obtained through human-machine interaction. The charging calculation and allocation module is used to calculate and allocate the corresponding main piles and / or auxiliary piles and their charging data according to the charging requirements to meet the charging requirements. The charging data includes charging voltage and / or charging current. The first request response module is used to trigger a corresponding charging command based on the main pile and / or auxiliary pile and their charging data generated by the charging calculation and allocation module, and send the command to the corresponding main pile and / or auxiliary pile. The main pile and / or the auxiliary pile are connected by a centralized cable; both the main pile and the auxiliary pile include one or more of the DC charging piles; the combined charging control device is connected to and controls the DC charging piles; the main pile is used to connect to the electric vehicle for charging, and the auxiliary pile is used to combine the output power to the main pile in parallel and / or in series through the centralized cable to increase the charging power of the electric vehicle; the combined charging control device is communicatively connected to a cloud server and / or to each of the combined charging control devices.
5. The DC charging pile combined charging management system as described in claim 4, characterized in that it is applied to the main charging pile and / or the corresponding combined charging control device, comprising: The first signal acquisition module is used to acquire the signal of the charging gun connecting to the electric vehicle charging dock; The first control switch module is used to control the first switching device to connect the charging gun to the charging output and / or centralized cable of the charging pile; The first signal output module is used to enable the first main control module of the main pile to obtain the charging gun connection to the charging base signal; The first communication message acquisition module is used to acquire the first communication message sent by the first main control module through the first CAN communication module. The first communication message modification and sending module is used to modify the first communication message according to the charging data and send it to the vehicle controller through the second CAN communication module. The second communication message acquisition module is used to acquire the second communication message sent by the vehicle controller through the second CAN communication module. The second communication message modification and sending module is used to modify the second communication message according to the charging data and send it to the first main control module through the first CAN communication module. The combined charging control device includes a first switching device, a first main control MCU, a first CAN communication module, and a second CAN communication module. The first switching device connects the charging output terminal of the main pile to the charging gun and the centralized cable to connect or disconnect any two of the three. The first CAN communication module connects to the CAN communication port of the first main control module, and the second CAN communication module connects to the S+ and S- wires of the charging gun. The combined charging control device also includes a first voltage divider module connected to the CC1 port of the first main control module to provide the first main control module with a signal indicating whether the charging gun is connected to the charging socket. The combined charging control device also includes a detection module connected to the CC1 line of the charging gun to provide the first main control MCU with a signal indicating whether the charging gun is connected to the trolley charging socket.
6. The DC charging pile combined charging management system as described in claim 4 or 5, characterized in that, applied to the auxiliary charging pile and / or the corresponding combined charging control device, it includes: A charging instruction acquisition module is used to acquire the charging instruction; The second control switch module is used to control the second switching device to connect the charging gun to the charging output and / or centralized cable of the charging pile; The second signal output module is used to enable the second main control module of the auxiliary pile to obtain the signal that the charging gun is connected to the trolley charging base; The third communication message acquisition module is used to acquire the third communication message sent by the second main control module through the third CAN communication module; The third communication message triggering module triggers a fourth communication message according to the charging command and sends it to the second main control module through the third CAN communication module; The combined charging control device includes a second switching device, a second main control MCU, and a third CAN communication module. The second switching device connects the charging output terminal of the auxiliary pile to the charging gun and the central cable to connect or disconnect any two of the three. The third CAN communication module connects to the CAN communication port of the second main control module. The second combined charging control device also includes a second voltage divider module connected to the CC1 port of the second main control module to provide the second main control module with a signal for the charging gun to connect to the charging socket.
7. A combined charging control device, characterized in that, The system includes a control module and a switching device. The switching device connects the charging output terminal of the DC charging pile, the charging gun, and the centralized cable. Under the control of the control module, it connects or disconnects any two of these three components to achieve parallel and / or series merging of the DC charging pile's output power into the centralized cable for increased power merging charging of the trolleybus. The merging charging control device is communicatively connected to a cloud server and / or to other merging charging control devices.
8. The combined charging control device as described in claim 7, characterized in that, The control module includes a main control MCU, a first CAN communication module, a second CAN communication module, a voltage divider module, and a detection module. The first CAN communication module is connected to the CAN communication port of the main control module of the DC charging pile, and the second CAN communication module is connected to the S+ and S- wires of the charging gun. The voltage divider module is connected to the CC1 port of the main control module to provide the main control module with a signal indicating whether the charging gun is connected to the charging socket. The detection module is connected to the CC1 line of the charging gun to provide the main control MCU with a signal indicating whether the charging gun is connected to the electric vehicle charging socket.
9. A DC charging pile combined charging retrofit system, characterized in that, The device includes the combined charging control device as described in claim 7 or 8, and further includes a memory for storing a computer program and a processor for executing the computer program to implement the DC charging pile combined charging management method as described in any one of claims 1 to 3.
10. A DC charging pile integrated charging management platform, characterized in that, It includes several DC charging pile merging and charging transformation systems as described in claim 9 and / or cloud servers, to realize the centralized and rapid charging of electric vehicles by merging multiple charging piles.