Energy distribution method for a charging pile and energy distribution device for a charging pile

Abstract

The application provides an energy distribution method of a charging pile and an energy distribution device of the charging pile, the charging pile is applied to multiple electric vehicles, the charging pile comprises a prepared number of power modules, and the method comprises the following steps: acquiring current state information and charging information of the electric vehicles under the condition that a preset condition is met; determining a charging mode of the charging pile on the electric vehicles and a target number of the electric vehicles according to at least the current state information and the charging information, the charging process of the charging pile on the electric vehicles comprises multiple charging modes connected in sequence, and the charging voltage of the electric vehicles and the charging current of the electric vehicles corresponding to different charging modes are different; calculating a sum of the target numbers of the multiple electric vehicles to obtain a target number sum; and distributing energy to the charging pile according to the charging mode sequence to sequentially charge the electric vehicles according to the prepared number and the target number sum. The technical problem of lack of flexibility in distribution of power modules of the charging pile is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric vehicles, and in particular, to an energy distribution method of a charging pile, an energy distribution device of a charging pile, a computer readable storage medium and a computer program product. BACKGROUND

[0002] Traditional charging piles have fixed power and are difficult to be compatible with charging of various vehicle models. The charging pile can integrate power modules of multiple charging piles and simultaneously supply power to multiple charging guns, flexibly distribute the number of power modules according to actual vehicle requirements, meet different power requirements of charging of various vehicle models, and improve utilization of power modules. The prior art calculates the number of input charging modules by detecting charging requirements of an electric vehicle, and meets the charging current requirements of the electric vehicle by connecting the modules in parallel, thereby meeting the charging power requirements. Meanwhile, the electric vehicle charging often adopts a constant voltage and constant current two-stage scheme, and the voltage and current for charging the battery often have a large variation interval, which makes the power module distribution of the charging pile lack flexibility.

[0003] Therefore, there is an urgent need for an energy distribution method of a charging pile to solve the above problems. SUMMARY

[0004] The main purpose of the present application is to provide an energy distribution method of a charging pile, an energy distribution device of a charging pile, a computer readable storage medium and a computer program product, to at least solve the problem of lack of flexibility in power module distribution of the charging pile in the prior art.

[0005] According to an aspect of the present application, an energy distribution method of a charging pile is provided, the charging pile is applied to a plurality of electric vehicles, the charging pile comprises a prepared number of power modules, the method comprises: obtaining current state information and charging information of the electric vehicles under the condition that a preset condition is met, the preset condition comprises at least one of the following: a distribution of the power modules of the charging pile is completed for a predetermined time length, at least one of the electric vehicles accesses the charging pile, and at least one of the electric vehicles is charged to completion, the current state information is used to represent a charging state of the electric vehicles corresponding to a current time, and the charging information is used to represent a charging state corresponding to a time when the electric vehicles are charged to completion; determining a charging mode of the charging pile to the electric vehicles and a target number of the electric vehicles according to at least the current state information and the charging information, wherein the charging process of the charging pile to the electric vehicles comprises a plurality of charging modes connected in sequence, the charging voltage and the charging current of the electric vehicles corresponding to different charging modes are different, the target number is the number of the power modules providing charging current and charging voltage to one electric vehicle, and the charging mode and the target number are one-to-one corresponding; calculating a sum of target numbers of the electric vehicles to obtain a target number sum; and distributing energy of the charging pile according to the charging mode in sequence to sequentially charge the electric vehicles according to the prepared number and the target number sum.

[0006] Optionally, under the condition that the preset condition is met, obtaining the current state information and the charging information of the electric vehicles comprises: obtaining a first charging voltage of the electric vehicles at the current time and a first charging current of the electric vehicles at the current time to obtain the current state information; and obtaining a second charging voltage corresponding to a time when the electric vehicles are charged to completion and a second charging current corresponding to a time when the electric vehicles are charged to completion to obtain the charging information.

[0007] Optionally, the charging modes comprise a first charging mode, a second charging mode, a third charging mode, a fourth charging mode and a fifth charging mode connected in sequence, and determining the charging mode of the charging pile to the electric vehicle according to at least the current state information and the charging information comprises: obtaining a maximum voltage of the electric vehicle in a constant current charging condition to obtain a maximum voltage value, and obtaining a maximum current of the electric vehicle in a constant voltage charging condition to obtain a maximum current value; in a case where the electric vehicle is in the constant current charging and the first charging voltage is greater than 0 and less than or equal to half of the maximum voltage value, determining the charging mode of the charging pile to the electric vehicle as the first charging mode; in a case where the electric vehicle is in the constant current charging and the first charging voltage is greater than half of the maximum voltage value and less than or equal to the maximum voltage value, determining the charging mode of the charging pile to the electric vehicle as the second charging mode; in a case where the first charging voltage is greater than the maximum voltage value and less than or equal to the second charging voltage, determining the charging mode of the charging pile to the electric vehicle as the third charging mode; in a case where the electric vehicle is in the constant voltage charging and the first charging current is greater than half of the maximum current value and less than or equal to the maximum current value, determining the charging mode of the charging pile to the electric vehicle as the fourth charging mode; in a case where the electric vehicle is in the constant voltage charging and the first charging current is greater than 0 and less than or equal to half of the maximum current, determining the charging mode of the charging pile to the electric vehicle as the fifth charging mode.

[0008] Optionally, determining the target number of the electric vehicle according to at least the current state information and the charging information comprises: obtaining a first number and a second number, wherein the first number is a number of power modules providing the charging voltage to the electric vehicle, and the second number is a number of power modules providing the charging current to the electric vehicle; and calculating a product of the first number and the second number to obtain the target number.

[0009] Optionally, obtaining the first number and the second number comprises: calculating the first number N of the jth charging mode according to a formula js , wherein V jmax is a maximum value of a charging voltage of the electric vehicle in the jth charging mode, V0 is an output voltage of one power module, j = 1, 2, 3, 4, 5, , and the second number N of the jth charging mode is calculated according to a formula jp , wherein I jmaxI0is an output current of one of the power modules.

[0010] Optionally, according to the preparation quantity and the target quantity sum, the energy of the charging pile is allocated in the order of the charging modes to sequentially charge the electric vehicles, including: determining whether the preparation quantity is greater than or equal to the target quantity sum, and in the case that the preparation quantity is greater than or equal to the target quantity sum, controlling the charging pile to sequentially charge all the electric vehicles in the order of the charging modes; in the case that the preparation quantity is less than the target quantity sum, controlling the charging pile to sequentially charge the first n electric vehicles in the order of the charging modes, wherein the sum of the target quantities of the first n electric vehicles is less than or equal to the preparation quantity, and n is a positive integer greater than 0.

[0011] Optionally, after the charging pile sequentially charges the first n electric vehicles in the order of the charging modes in the case that the preparation quantity is less than the target quantity sum, the method further includes: calculating the difference between the sum of the target quantities of the first n electric vehicles and the preparation quantity to obtain a preparation difference; determining whether the preparation difference is greater than or equal to the first quantity of the n+1 electric vehicle, and in the case that the preparation difference is greater than or equal to the first quantity of the n+1 electric vehicle, controlling the third quantity of the power modules in the charging pile to charge the n+1 electric vehicle, wherein the first quantity is the number of power modules providing the charging voltage to the electric vehicle, the third quantity is less than or equal to the preparation difference, the third quantity is the product of a predetermined quantity and a fourth quantity, the predetermined quantity is less than the first quantity, and the fourth quantity is the number of power modules providing the charging current to the electric vehicle; in the case that the preparation difference is less than the first quantity of the n+1 electric vehicle, controlling the charging pile not to charge the n+1 electric vehicle.

[0012] According to another aspect of the present application, there is provided an energy distribution device of a charging pile, the charging pile being applied to a plurality of electric vehicles, the charging pile comprising a prepared number of power modules, the device comprising: an acquisition unit configured to acquire current state information and charging information of the electric vehicles under a condition that a preset condition is met, the preset condition comprising at least one of the following: a condition that distribution of the power modules of the charging pile is completed for a predetermined time length, a condition that at least one of the electric vehicles accesses the charging pile, and a condition that charging of at least one of the electric vehicles is completed, the current state information being used to represent a charging state of the electric vehicles corresponding to a current time, and the charging information being used to represent a charging state corresponding to a time when charging of the electric vehicles is completed; a determination unit configured to determine, according to at least the current state information and the charging information, a charging mode of the charging pile to the electric vehicles and a target number of the electric vehicles, wherein the charging of the charging pile to the electric vehicles comprises a plurality of charging modes connected in sequence, the charging voltage and the charging current of the electric vehicles corresponding to different charging modes are different, the target number is a number of the power modules providing charging current and charging voltage to one of the electric vehicles, and the charging mode and the target number are one-to-one corresponding; a calculation unit configured to calculate a sum of target numbers of the electric vehicles, to obtain a target number sum; and a distribution unit configured to distribute energy of the charging pile according to the prepared number and the target number sum, to sequentially charge the electric vehicles according to an order of the charging modes.

[0013] According to still another aspect of the present application, there is provided a computer readable storage medium, comprising a stored program, wherein the program, when executed, controls a device where the computer readable storage medium is located to perform any of the methods.

[0014] According to yet another aspect of the present application, there is provided a computer program product, comprising a computer program, wherein the computer program, when executed by a processor, implements steps of any of the methods.

[0015] This application provides an energy distribution method for a charging pile, which is used to charge multiple electric vehicles. The charging pile includes a predetermined number of power modules. First, under preset conditions, the current status and charging information of the electric vehicles are acquired. Then, based on at least the current status and charging information, the charging mode and target number of electric vehicles are determined. The charging process includes multiple sequentially connected charging modes, each with different charging voltages and currents. Next, the target number of electric vehicles is calculated. Finally, based on the predetermined number and the target number, energy is distributed to the charging pile according to the order of the charging modes to charge each electric vehicle sequentially. In this method, because the charging voltage and current requirements for each charging mode are different, a corresponding target number of power modules are used to charge the electric vehicles, allowing each power module to operate within its efficient operating range. The charging pile is then controlled to charge multiple electric vehicles according to the order of the charging modes and the principle of first-come, first-served for electric vehicles. By centrally managing and flexibly allocating the number of power modules in the charging pile, when multiple vehicles are charging simultaneously, the power modules can be rationally allocated based on the order of access time and the power capacity of the charging pile, i.e., the number of reserves. This optimizes the overall charging efficiency and the flexibility of the charging process, solving the technical problem of the lack of flexibility in the allocation of power modules in the charging pile in the prior art. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 A hardware structure block diagram of a mobile terminal performing an energy distribution method for a charging pile according to an embodiment of this application is shown.

[0018] Figure 2 A schematic flowchart of an energy distribution method for a charging pile according to an embodiment of this application is shown;

[0019] Figure 3 A flowchart illustrating five charging modes provided according to embodiments of this application is shown;

[0020] Figure 4 A structural block diagram of an energy distribution device for a charging pile according to an embodiment of this application is shown.

[0021] The above figures include the following reference numerals:

[0022] 102. Processor; 104. Memory; 106. Transmission device; 108. Input / output device. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0025] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0026] As described in the background section, the power module allocation of existing charging piles lacks flexibility. To address the above problems, embodiments of this application provide an energy allocation method for a charging pile, an energy allocation device for a charging pile, a computer-readable storage medium, and a computer program product.

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] The methods and embodiments provided in this application can be executed on a mobile terminal, computer terminal, or similar computing device. Taking running on a mobile terminal as an example, Figure 1 This is a hardware structure block diagram of a mobile terminal for an energy distribution method for a charging pile according to an embodiment of the present invention. Figure 1 As shown, a mobile terminal may include one or more ( Figure 1Only one is shown in the diagram. A processor 102 (which may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 104 for storing data are also shown. The mobile terminal may further include a transmission device 106 for communication functions and an input / output device 108. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the mobile terminal described above. For example, the mobile terminal may also include components that are more... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.

[0029] The memory 104 can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to the energy distribution method of the charging pile in this embodiment of the invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, thereby implementing the above-described method. The memory 104 may include high-speed random access memory and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the above-described networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof. The transmission device 106 is used to receive or send data via a network. Specific examples of the above-described networks may include wireless networks provided by the mobile terminal's communication provider. In one example, the transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0030] This embodiment provides an energy distribution method for a charging pile that operates on a mobile terminal, computer terminal, or similar computing device. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0031] Figure 2 This is a flowchart of an energy distribution method for a charging pile according to an embodiment of this application. For example... Figure 2As shown, the above-mentioned charging pile is applied to multiple electric vehicles. The charging pile includes a predetermined number of power modules. The method includes the following steps:

[0032] Step S201: Under the condition of satisfying the preset conditions, the current status information and charging information of the electric vehicle are obtained. The preset conditions include at least one of the following: the power module of the charging pile is allocated for a predetermined time, at least one electric vehicle is connected to the charging pile, and at least one electric vehicle is fully charged. The current status information is used to characterize the charging status of the electric vehicle at the current time, and the charging information is used to characterize the charging status at the time when the electric vehicle is fully charged.

[0033] Specifically, the reallocation of charging modules in a charging pile is primarily based on changes in charging demand, variations in the module's efficient operating range, flexible allocation for multi-vehicle charging, and energy optimization management considerations. During the charging process of an electric vehicle, the battery voltage and required current change over time. Specifically, the battery requires a higher current and a lower voltage in the initial stages of charging, while as the battery charge increases, the required voltage gradually rises to a constant value, and the current gradually decreases. Therefore, to adapt to this non-linear change during electric vehicle battery charging, the charging pile modules need to be reconfigured according to the battery's current state (i.e., voltage and current requirements) to ensure that each module operates in its optimal state. Charging modules (i.e., the aforementioned power modules) operate most efficiently within a specific voltage and current output range. If the charging demand of the electric vehicle causes the module to operate in an inefficient range (such as under light load), it will affect charging efficiency and module lifespan. By dynamically adjusting the module connection method (series or parallel), the modules can be made to operate at voltage and current points closer to their efficient operating range, thereby improving overall charging efficiency. A charging pile may charge multiple electric vehicles simultaneously, each with different battery types, capacities, and states of charge, resulting in varying charging power requirements. When a new vehicle joins or a vehicle completes charging, the number of available modules on the charging pile changes. Modules need to be reallocated to accommodate the charging needs of all vehicles, ensuring each vehicle receives the necessary charging power while maximizing module utilization and overall charging pile efficiency. The charging pile's energy management strategy must consider the charging needs of all connected vehicles and the charging pile's own power capacity to achieve optimal resource allocation. By periodically or triggered by specific events (such as vehicle connection or charging completion), the charging process can be continuously optimized, ensuring the charging pile's energy is used effectively and flexibly, avoiding resource waste.

[0034] Step S202: Based at least the current status information and the charging information, determine the charging mode of the charging pile for the electric vehicle and the target number of the electric vehicles. The charging process of the charging pile for the electric vehicle includes multiple charging modes connected in sequence. Different charging modes correspond to different charging voltages and charging currents for the electric vehicles. The target number is the number of power modules that provide charging current and charging voltage to one of the electric vehicles. The charging modes and the target number are in one-to-one correspondence.

[0035] Specifically, based on the changes in charging current and voltage during the charging process of the electric vehicle, multiple sequential charging modes are determined, with the end time of the previous charging mode serving as the start time of the next charging mode. Calculating the required number of charging modules requires considering the voltage and current output capabilities of a single module in the charging stack, as well as the voltage and current required by the electric vehicle in the current charging mode.

[0036] Step S203: Calculate the sum of the target quantities of the multiple electric vehicles mentioned above to obtain the target quantity sum;

[0037] Specifically, in order to enable simultaneous charging of multiple vehicles, it is necessary to calculate the target number for each vehicle to obtain the total number of power modules required.

[0038] Step S204: Based on the above-mentioned prepared quantity and the above-mentioned target quantity, the energy of the above-mentioned charging pile is distributed in the order of the above-mentioned charging mode to charge each of the above-mentioned electric vehicles in sequence.

[0039] Specifically, the charging pile topology can be reconstructed by switching the matrix switch network to charge all electric vehicles. The matrix switch network refers to the use of a matrix arrangement to connect multiple switches together to achieve the purpose of multi-channel switch control.

[0040] This embodiment provides an energy distribution method for a charging pile applied to multiple electric vehicles. The charging pile includes a predetermined number of power modules. First, under preset conditions, the current status and charging information of the electric vehicles are acquired. Then, based on at least the current status and charging information, the charging mode and target number of electric vehicles are determined. The charging process includes multiple sequentially connected charging modes, each with different charging voltages and currents. Next, the target number of electric vehicles is calculated. Finally, based on the predetermined number and the target number, energy is distributed to the charging pile according to the order of the charging modes to charge each electric vehicle sequentially. In this method, since the charging voltage and current requirements for each charging mode are different, a corresponding target number of power modules are used to charge the electric vehicles, allowing each power module to operate within its efficient operating range. The charging pile is then controlled to charge multiple electric vehicles according to the order of the charging modes and the principle of first-come, first-served for electric vehicles. By centrally managing and flexibly allocating the number of power modules in the charging pile, when multiple vehicles are charging simultaneously, the power modules can be rationally allocated based on the order of access time and the power capacity of the charging pile, i.e., the number of reserves. This optimizes the overall charging efficiency and the flexibility of the charging process, solving the technical problem of the lack of flexibility in the allocation of power modules in the charging pile in the prior art.

[0041] In specific implementation, step S201 can be achieved through the following steps: Step S2011, obtain the first charging voltage and the first charging current of the electric vehicle at the current moment to obtain the current state information; Step S2012, obtain the second charging voltage and the second charging current of the electric vehicle at the moment when charging is completed to obtain the charging information. This method can further quickly obtain the current state information and charging information of the electric vehicle.

[0042] Specifically, the charging needs of all electric vehicles currently connected to the charging pile are detected first. The current status information of the electric vehicle battery is obtained through communication, namely the charging voltage V1 and charging current I2 required for current charging, as well as the voltage V2 and current I2 required for the battery to be fully charged, and the battery status is monitored in real time.

[0043] To further achieve optimal control of electric vehicle charging, the charging modes include a first charging mode, a second charging mode, a third charging mode, a fourth charging mode, and a fifth charging mode connected in sequence. Step S202 of this application can be implemented through the following steps: Step S2021, obtaining the maximum voltage of the electric vehicle under constant current charging, and obtaining the maximum current of the electric vehicle under constant voltage charging; Step S2022, when the electric vehicle is under constant current charging and the first charging voltage is greater than 0 and less than or equal to half of the maximum voltage value, determining the charging mode of the charging pile for the electric vehicle as the first charging mode; Step S2023, when the electric vehicle is under constant current charging and the first charging voltage is greater than half of the maximum voltage value... If the voltage is less than or equal to the maximum voltage value, the charging mode of the charging pile for the electric vehicle is determined to be the second charging mode; in step S2024, if the first charging voltage is greater than the maximum voltage value and less than or equal to the second charging voltage, the charging mode of the charging pile for the electric vehicle is determined to be the third charging mode; in step S2025, if the electric vehicle is under constant voltage charging and the first charging current is greater than half of the maximum current value and less than or equal to the maximum current value, the charging mode of the charging pile for the electric vehicle is determined to be the fourth charging mode; in step S2026, if the electric vehicle is under constant voltage charging and the first charging current is greater than 0 and less than or equal to half of the maximum current, the charging mode of the charging pile for the electric vehicle is determined to be the fifth charging mode.

[0044] Specifically, based on voltage and current, battery charging is reclassified into five charging modes: a first charging mode, a second charging mode, a third charging mode, a fourth charging mode, and a fifth charging mode, connected sequentially. For example... Figure 3 As shown, the current required for constant current charging is I. c And its required minimum charging voltage is V Imax The voltage required for constant voltage charging is V. c And its maximum charging current is I Vmax V out and I out These represent the charging current from the charging pile to the electric vehicle. Charging mode I (i.e., the first charging mode) refers to half the maximum charging voltage (V) required from the moment the electric vehicle connects to the charging pile until the electric vehicle's charging voltage rises to constant current charging. out =V Imax / 2) End. Charging Mode II (i.e., the second charging mode) starts from the end of Charging Mode I and continues until the electric vehicle's charging voltage rises to the maximum charging voltage (V) required for constant current charging. out =Vcmax Charging mode II begins at time t1 and ends at time t2. Charging mode III (i.e., the third charging mode) begins at the end of charging mode II and continues until the electric vehicle's charging voltage reaches a constant voltage (V). out =V c Charging mode III ends when charging mode IV (i.e., the fourth charging mode) ends when charging mode III ends. Charging mode IV begins when charging mode III ends and continues until half of the maximum charging current required for constant voltage charging of the electric vehicle is reached (I... out =I vmax Charging mode II ends at time t1 and ends at time t2. Charging mode V (i.e., the fifth charging mode) begins when charging mode IV ends and continues until the electric vehicle is fully charged.

[0045] Step S202 can also be implemented in other ways, such as: step S2027, obtaining a first quantity and a second quantity, wherein the first quantity is the number of power modules providing the charging voltage to the electric vehicle, and the second quantity is the number of power modules providing the charging current to the electric vehicle; step S2028, calculating the product of the first quantity and the second quantity to obtain the target quantity. This method can further quickly determine the target quantity of the electric vehicle.

[0046] Specifically, when the charging pile charges the battery, it provides the appropriate voltage through series power modules and the appropriate current through parallel power modules.

[0047] In some embodiments, step S2027 can be implemented through the following steps: Step S20271, according to the formula Calculate the first quantity N of the j-th charging mode. js , where V jmax V0 represents the maximum charging voltage of the electric vehicle in the j-th charging mode, where V0 is the output voltage of one of the power modules, and j = 1, 2, 3, 4, 5. Used to characterize rounding up; Step S20272, according to the formula Calculate the second quantity N mentioned above for the j-th charging mode. jp , among which, I jmax I0 is the maximum charging current of the electric vehicle in the j-th charging mode, and I0 is the output current of one of the power modules. This method can further quickly obtain the first and second quantities.

[0048] Specifically, in charging mode I, N in the working area is first charged. 1s Several charging modules are connected in series to form a medium module, and N 1p The modules are connected in parallel to form an N. 1s ×N 1pA large module composed of multiple charging modules charges electric vehicles; in charging mode II, N in the working area is first charged. 2s Several charging modules are connected in series to form a medium module, and N 2p The modules are connected in parallel to form an N. 2s ×N 2p A large module composed of multiple charging modules charges electric vehicles; in charging mode III, the N modules in the working area are first charged. 3s Several charging modules are connected in series to form a medium module, and N 3p The modules are connected in parallel to form an N. 3s ×N 3p A large module composed of multiple charging modules charges electric vehicles; in charging mode IV, the N modules in the working area are first charged. 4s Several charging modules are connected in series to form a medium module, and N 4p The modules are connected in parallel to form a final product consisting of N 4s ×N 4p A large module consisting of several charging modules charges electric vehicles. In charging mode V, N in the working area is first charged. 5s Several charging modules are connected in series to form a medium module, and N 5p The modules are connected in parallel to form a final product consisting of N 5s ×N 5p A large module consisting of multiple charging modules charges electric vehicles.

[0049] In some embodiments, step S204 can be implemented through the following steps: Step S2041, determining whether the prepared quantity is greater than or equal to the sum of the target quantities; if the prepared quantity is greater than or equal to the sum of the target quantities, controlling the charging pile to charge all the electric vehicles sequentially according to the charging mode order; Step S2042, if the prepared quantity is less than the sum of the target quantities, controlling the charging pile to charge the first n electric vehicles sequentially according to the charging mode order, wherein the sum of the target quantities of the first n electric vehicles is less than or equal to the prepared quantity, and n is a positive integer greater than 0. This method can further realize centralized management and flexible allocation of the charging pile's energy.

[0050] Specifically, the number of modules N in the charging pile itself is no less than the optimal number of modules N required for charging all electric vehicles at this time. 总 That is, N≥N 总 Then, based on the intelligent charging method, optimal charging is performed for each electric vehicle. The number of modules N in the charging pile itself is less than the number of modules N required for optimal charging of all electric vehicles at this time. 总 That is, N < N 总 At this point, based on the first-come, first-served principle, the top n electric vehicles that can be charged are prioritized for optimal charging.

[0051] Following step S2042, the method further includes: step S2043, calculating the difference between the sum of the target quantities of the first n electric vehicles and the reserve quantity to obtain a reserve difference; step S2044, determining whether the reserve difference is greater than or equal to the first quantity of the (n+1)th electric vehicle, and if the reserve difference is greater than or equal to the first quantity of the (n+1)th electric vehicle, controlling a third number of power modules in the charging pile to charge the (n+1)th electric vehicle, wherein the first quantity is the number of power modules providing the charging voltage to the electric vehicle, the third quantity is less than or equal to the reserve difference, the third quantity is the product of a predetermined quantity and a fourth quantity, the predetermined quantity is less than the first quantity, and the fourth quantity is the number of power modules providing the charging current to the electric vehicle; step S2045, if the reserve difference is less than the first quantity of the (n+1)th electric vehicle, controlling the charging pile not to charge the (n+1)th electric vehicle. This method can further realize centralized management and flexible allocation of the energy of the charging pile.

[0052] Specifically, if the number of remaining modules N 总 -N modules can be connected in series to meet the charging voltage requirement of the (n1+1)th electric vehicle, but are insufficient to achieve optimal charging for the (n+1)th electric vehicle (i.e., the number of idle modules can be connected in series to provide sufficient voltage, but not enough to provide sufficient voltage and current simultaneously). Therefore, the (n+1)th electric vehicle is slowly charged, and the queue starts from the (n+2)th electric vehicle. If the number of remaining modules is N... 总 -N can be connected in series but cannot meet the charging voltage requirements of the (n+1)th electric vehicle, so the queue starts from the (n+1)th electric vehicle.

[0053] To enable those skilled in the art to better understand the technical solution of this application, the implementation process of the energy distribution method of the charging pile of this application will be described in detail below with reference to specific embodiments.

[0054] A flexible charging pile has 50 charging modules, which are being charged by vehicles A, B, C, and D. At a certain moment, vehicles A, B, C, and D are in their respective charging modes according to their charging needs, namely charging mode II, charging mode IV, and charging mode V, respectively. (Note that the charging needs of different electric vehicles in the same charging mode may not be the same, as this is determined by the different models of each electric vehicle's battery.) The number of charging modules required by each vehicle is 3×4=12, 4×4=16, 2×4=8, and 1×5=5, respectively (the first number represents the number of series groups, the second number represents the number of parallel groups, and the number after the equal sign represents the total number of modules). At this time, the total number of modules required by the electric vehicles is 12+16+8+5=41.

[0055] Example 1

[0056] After time t, the charging mode of each charging port is calculated using the intelligent charging method, and the modules of the charging pile are reallocated. At this time, vehicle A enters charging mode III, vehicle B remains in charging mode II, vehicle C enters charging mode V, and vehicle D remains in charging mode V. The module demand now becomes 3×5=15; 4×4=16; 1×4=4; 1×5=5, totaling 15+16+4+5=40<50, which falls under case 1. Therefore, the matrix network is switched to reconstruct the charging pile topology for vehicles A to D to perform optimal charging.

[0057] Example 2

[0058] If, before time t has elapsed, a new vehicle E connects to the charging pile and issues a charging request, then the charging pile modules need to be reallocated using intelligent charging and a first-come, first-served principle. Assuming vehicles A through B are still in their original charging modes, and vehicle E is in charging mode I requiring 4 × 2 = 8 charging modules, then the total charging module demand for all electric vehicles is 12 + 16 + 8 + 5 + 8 = 49 < 50, which falls under case 1. Therefore, the matrix network is switched to reconstruct the charging pile topology for optimal charging of vehicles A through E.

[0059] Example 3

[0060] If, before time t has elapsed, a new vehicle E connects to the charging pile and issues a charging request, the charging pile modules need to be redistributed using intelligent charging and a first-come, first-served principle. Assuming vehicles A through D are still in their original charging modes, and vehicle E is in charging mode II requiring 4 × 3 = 12 charging modules, the total charging module requirement for all electric vehicles is 12 + 16 + 8 + 5 + 12 = 53 > 50. Vehicles A through D only need 40 charging modules, leaving 10 idle modules, which is greater than the 3 modules required for vehicle E's charging voltage (case 2). Therefore, based on the first-come, first-served principle, the matrix network is switched to reconstruct the charging pile topology. Vehicles A through D are prioritized for optimal charging, while vehicle E is slowly charged using 3 × 3 = 9 charging modules.

[0061] Example 4

[0062] If, before time t has elapsed, a new vehicle E connects to the charging pile and issues a charging request, the charging pile modules need to be redistributed using intelligent charging and a first-come, first-served principle. Assuming vehicles C and D are still in their original charging modes, and vehicles A and B enter charging mode III with charging needs of 3×5=15 and 4×5=20 respectively, vehicle E, in charging mode II, requires 4×3=12 charging modules. Therefore, the total charging module demand for all electric vehicles is 15+20+8+5+12=60>50, and the number of charging modules required for vehicles A~D is 15+20+8+5=48<50. However, the remaining 2 idle modules are insufficient for slow charging of vehicle E, falling under case 3. Therefore, based on the first-come, first-served principle, the matrix network is switched to reconstruct the charging pile topology. Vehicles A~D are prioritized for optimal charging, while vehicle E waits in the queue.

[0063] Example 5

[0064] If vehicles A through D and vehicle E are in the charging state described in Example 3, and vehicle D completes charging before time t has elapsed, the charging pile modules are reassigned using intelligent charging and a first-come, first-served principle. Assuming vehicles A through C and vehicle E are still in their previous charging modes, the total charging demand is 12 + 16 + 8 + 12 = 48 < 50, which falls under Case 1. The matrix network is then switched to reconstruct the charging pile topology, and vehicles A, B, C, and E are charged optimally.

[0065] This application also provides an energy distribution device for a charging pile. It should be noted that the energy distribution device for the charging pile in this application can be used to execute the energy distribution method for the charging pile provided in this application. This device is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0066] The energy distribution device for the charging pile provided in the embodiments of this application will be described below.

[0067] Figure 4 This is a schematic diagram of an energy distribution device for a charging pile according to an embodiment of this application. Figure 4 As shown, the above-mentioned charging pile is applied to multiple electric vehicles. The charging pile includes a predetermined number of power modules. The device includes:

[0068] The acquisition unit 10 is used to acquire the current status information and charging information of the electric vehicle when the preset conditions are met. The preset conditions include at least one of the following: the power module of the charging pile is allocated for a predetermined time, at least one electric vehicle is connected to the charging pile, and at least one electric vehicle is fully charged. The current status information is used to characterize the charging status of the electric vehicle at the current moment, and the charging information is used to characterize the charging status at the moment when the electric vehicle is fully charged.

[0069] Specifically, the reallocation of charging modules in a charging pile is primarily based on changes in charging demand, variations in the module's efficient operating range, flexible allocation for multi-vehicle charging, and energy optimization management considerations. During the charging process of an electric vehicle, the battery voltage and required current change over time. Specifically, the battery requires a higher current and a lower voltage in the initial stages of charging, while as the battery charge increases, the required voltage gradually rises to a constant value, and the current gradually decreases. Therefore, to adapt to this non-linear change during electric vehicle battery charging, the charging pile modules need to be reconfigured according to the battery's current state (i.e., voltage and current requirements) to ensure that each module operates in its optimal state. Charging modules (i.e., the aforementioned power modules) operate most efficiently within a specific voltage and current output range. If the charging demand of the electric vehicle causes the module to operate in an inefficient range (such as under light load), it will affect charging efficiency and module lifespan. By dynamically adjusting the module connection method (series or parallel), the modules can be made to operate at voltage and current points closer to their efficient operating range, thereby improving overall charging efficiency. A charging pile may charge multiple electric vehicles simultaneously, each with different battery types, capacities, and states of charge, resulting in varying charging power requirements. When a new vehicle joins or a vehicle completes charging, the number of available modules on the charging pile changes. Modules need to be reallocated to accommodate the charging needs of all vehicles, ensuring each vehicle receives the necessary charging power while maximizing module utilization and overall charging pile efficiency. The charging pile's energy management strategy must consider the charging needs of all connected vehicles and the charging pile's own power capacity to achieve optimal resource allocation. By periodically or triggered by specific events (such as vehicle connection or charging completion), the charging process can be continuously optimized, ensuring the charging pile's energy is used effectively and flexibly, avoiding resource waste.

[0070] The determining unit 20 is used to determine, at least based on the current state information and the charging information, the charging mode of the charging pile for the electric vehicle and the target number of the electric vehicle, wherein the charging process of the charging pile for the electric vehicle includes multiple charging modes connected in sequence, and the charging voltage and charging current of the electric vehicle are different for different charging modes, and the target number is the number of power modules that provide charging current and charging voltage to one of the electric vehicles, and the charging mode and the target number are in one-to-one correspondence.

[0071] Specifically, based on the changes in charging current and voltage during the charging process of the electric vehicle, multiple sequential charging modes are determined, with the end time of the previous charging mode serving as the start time of the next charging mode. Calculating the required number of charging modules requires considering the voltage and current output capabilities of a single module in the charging stack, as well as the voltage and current required by the electric vehicle in the current charging mode.

[0072] The calculation unit 30 is used to calculate the sum of the target quantities of multiple electric vehicles mentioned above, and obtain the target quantity sum;

[0073] Specifically, in order to enable simultaneous charging of multiple vehicles, it is necessary to calculate the target number for each vehicle to obtain the total number of power modules required.

[0074] The distribution unit 40 is used to distribute energy to the charging pile according to the above-mentioned pre-set quantity and the above-mentioned target quantity, and in the order of the above-mentioned charging mode, so as to charge each of the above-mentioned electric vehicles in sequence.

[0075] Specifically, the charging pile topology can be reconstructed by switching the matrix switch network to charge all electric vehicles. The matrix switch network refers to the use of a matrix arrangement to connect multiple switches together to achieve the purpose of multi-channel switch control.

[0076] This embodiment provides an energy distribution device for a charging pile, which is applied to multiple electric vehicles. The charging pile includes a predetermined number of power modules. An acquisition unit acquires the current status and charging information of the electric vehicles under preset conditions. A determination unit determines the charging mode and target number of electric vehicles based on at least the current status and charging information. The charging process involves multiple sequentially connected charging modes, each with different charging voltages and currents. A calculation unit calculates the sum of the target numbers for the multiple electric vehicles. A control unit, based on the predetermined number and the target number, controls the charging pile to charge each electric vehicle sequentially according to the charging mode order. In this device, because the charging voltage and current requirements for each charging mode are different, a corresponding target number of power modules are used to charge the electric vehicles, allowing each power module to operate within its efficient operating range. Furthermore, the charging pile is controlled to charge multiple electric vehicles according to the order of the charging modes and the principle of first-come, first-served for electric vehicles. By centrally managing and flexibly allocating the number of power modules in the charging pile, when multiple vehicles are charging simultaneously, the power modules can be rationally allocated based on the order of access time and the power capacity of the charging pile, i.e., the number of reserves. This optimizes the overall charging efficiency and the flexibility of the charging process, solving the technical problem of the lack of flexibility in the allocation of power modules in the charging pile in the prior art.

[0077] In its specific implementation, the aforementioned acquisition unit includes a first acquisition module and a second acquisition module. The first acquisition module acquires the first charging voltage and the first charging current of the electric vehicle at the current moment to obtain the current status information. The second acquisition module acquires the second charging voltage and the second charging current of the electric vehicle at the moment charging is complete to obtain the charging information. This device can further and rapidly acquire the current status information and charging information of the electric vehicle.

[0078] Specifically, the charging needs of all electric vehicles currently connected to the charging pile are detected first. The current status information of the electric vehicle battery is obtained through communication, namely the charging voltage V1 and charging current I2 required for current charging, as well as the voltage V2 and current I2 required for the battery to be fully charged, and the battery status is monitored in real time.

[0079] To further optimize the charging control of electric vehicles, the charging modes include a first charging mode, a second charging mode, a third charging mode, a fourth charging mode, and a fifth charging mode connected in sequence. The determining unit of this application includes a third acquisition module, a first determining module, a second determining module, a third determining module, a fourth determining module, and a fifth determining module. The third acquisition module is used to acquire the maximum voltage of the electric vehicle under constant current charging conditions, and to acquire the maximum current of the electric vehicle under constant voltage charging conditions, obtaining the maximum current value. The first determining module is used to determine the charging mode of the charging pile for the electric vehicle as the first charging mode when the electric vehicle is under constant current charging and the first charging voltage is greater than 0 and less than or equal to half of the maximum voltage value. The second determining module is used to determine the charging mode of the electric vehicle under constant current charging and the first charging voltage is less than or equal to half of the maximum voltage value. When the charging voltage is greater than half of the maximum voltage value and less than or equal to the maximum voltage value, the charging mode of the charging pile for the electric vehicle is determined to be the second charging mode; the third determining module is used to determine the charging mode of the charging pile for the electric vehicle to be the third charging mode when the first charging voltage is greater than the maximum voltage value and less than or equal to the second charging voltage; the fourth determining module is used to determine the charging mode of the charging pile for the electric vehicle to be the fourth charging mode when the electric vehicle is under constant voltage charging and the first charging current is greater than half of the maximum current value and less than or equal to the maximum current value; the fifth determining module is used to determine the charging mode of the charging pile for the electric vehicle to be the fifth charging mode when the electric vehicle is under constant voltage charging and the first charging current is greater than 0 and less than or equal to half of the maximum current value.

[0080] Specifically, based on voltage and current, battery charging is reclassified into five charging modes: a first charging mode, a second charging mode, a third charging mode, a fourth charging mode, and a fifth charging mode, connected sequentially. For example... Figure 3 As shown, the current required for constant current charging is I. c And its required minimum charging voltage is V Imax The voltage required for constant voltage charging is V. c And its maximum charging current is I Vmax V out and I out These represent the charging current from the charging pile to the electric vehicle. Charging mode I (i.e., the first charging mode) refers to half the maximum charging voltage (V) required from the moment the electric vehicle connects to the charging pile until the electric vehicle's charging voltage rises to constant current charging. out =V Imax / 2) End. Charging Mode II (i.e., the second charging mode) starts from the end of Charging Mode I and continues until the electric vehicle's charging voltage rises to the maximum charging voltage (V) required for constant current charging. out =V cmax Charging mode II begins at time t1 and ends at time t2. Charging mode III (i.e., the third charging mode) begins at the end of charging mode II and continues until the electric vehicle's charging voltage reaches a constant voltage (V). out =V c Charging mode III ends when charging mode IV (i.e., the fourth charging mode) ends when charging mode III ends. Charging mode IV begins when charging mode III ends and continues until half of the maximum charging current required for constant voltage charging of the electric vehicle is reached (I... out =I vmax Charging mode II ends at time t1 and ends at time t2. Charging mode V (i.e., the fifth charging mode) begins when charging mode IV ends and continues until the electric vehicle is fully charged.

[0081] The aforementioned determining unit further includes a fourth acquisition module and a first calculation module. The fourth acquisition module acquires a first quantity and a second quantity, wherein the first quantity is the number of power modules providing the charging voltage to the electric vehicle, and the second quantity is the number of power modules providing the charging current to the electric vehicle. The first calculation module calculates the product of the first quantity and the second quantity to obtain the target quantity. This device can further and quickly determine the target quantity of the electric vehicle.

[0082] Specifically, when the charging pile charges the battery, it provides the appropriate voltage through series power modules and the appropriate current through parallel power modules.

[0083] In some embodiments, the fourth acquisition module described above includes a first calculation submodule and a second calculation submodule, wherein the first calculation submodule is used to calculate according to the formula Calculate the first quantity N of the j-th charging mode. js , where V jmax V0 represents the maximum charging voltage of the electric vehicle in the j-th charging mode, where V0 is the output voltage of one of the power modules, and j = 1, 2, 3, 4, 5. The first calculation submodule is used to characterize rounding up; the second calculation submodule is used to calculate according to the formula. Calculate the second quantity N mentioned above for the j-th charging mode. jp , among which, I jmax I0 is the maximum charging current of the electric vehicle in the j-th charging mode, and I0 is the output current of one of the power modules. This device can further and more quickly acquire the first and second quantities.

[0084] Specifically, in charging mode I, N in the working area is first charged. 1s Several charging modules are connected in series to form a medium module, and N 1p The modules are connected in parallel to form an N. 1s ×N 1p A large module composed of multiple charging modules charges electric vehicles; in charging mode II, the N modules in the working area are first charged. 2s Several charging modules are connected in series to form a medium module, and N 2p The modules are connected in parallel to form an N. 2s ×N 2p A large module composed of multiple charging modules charges electric vehicles; in charging mode III, the N modules in the working area are first charged. 3s Several charging modules are connected in series to form a medium module, and N 3p The modules are connected in parallel to form an N. 3s ×N 3p A large module composed of multiple charging modules charges electric vehicles; in charging mode IV, the N modules in the working area are first charged. 4s Several charging modules are connected in series to form a medium module, and N 4p The modules are connected in parallel to form a final product consisting of N 4s ×N 4p A large module consisting of several charging modules charges electric vehicles. In charging mode V, N in the working area is first charged. 5s Several charging modules are connected in series to form a medium module, and N 5p The modules are connected in parallel to form a final product consisting of N 5s ×N 5p A large module consisting of multiple charging modules charges electric vehicles.

[0085] In some embodiments, the control unit includes a sixth determining module and a first control module. The sixth determining module determines whether the prepared quantity is greater than or equal to the sum of the target quantities. If the prepared quantity is greater than or equal to the sum of the target quantities, the control unit controls the charging pile to charge all the electric vehicles sequentially according to the charging mode order. The first control module controls the charging pile to charge the first n electric vehicles sequentially according to the charging mode order if the prepared quantity is less than the sum of the target quantities, wherein the sum of the target quantities of the first n electric vehicles is less than or equal to the prepared quantity, and n is a positive integer greater than 0. This device can further realize centralized management and flexible allocation of the charging pile's energy.

[0086] Specifically, the number of modules N in the charging pile itself is no less than the optimal number of modules N required for charging all electric vehicles at this time. 总 That is, N≥N 总Then, based on the intelligent charging method, optimal charging is performed for each electric vehicle. The number of modules N in the charging pile itself is less than the number of modules N required for optimal charging of all electric vehicles at this time. 总 That is, N < N 总 At this point, based on the first-come, first-served principle, the top n electric vehicles that can be charged are prioritized for optimal charging.

[0087] The control unit further includes a second calculation module, a seventh determination module, and a second control module. The second calculation module calculates the difference between the sum of the target quantities of the first n electric vehicles and the predetermined quantity to obtain a predetermined difference. The seventh determination module determines whether the predetermined difference is greater than or equal to the first quantity of the (n+1)th electric vehicle. If the predetermined difference is greater than or equal to the first quantity of the (n+1)th electric vehicle, it controls a third number of power modules in the charging pile to charge the (n+1)th electric vehicle. The first number is the number of power modules providing charging voltage to the electric vehicle, the third number is less than or equal to the predetermined difference, the third number is the product of a predetermined number and a fourth number, the predetermined number is less than the first number, and the fourth number is the number of power modules providing charging current to the electric vehicle. The second control module controls the charging pile not to charge the (n+1)th electric vehicle if the predetermined difference is less than the first quantity of the (n+1)th electric vehicle. This device can further realize centralized management and flexible distribution of the charging pile's energy.

[0088] Specifically, if the number of remaining modules N 总 -N modules can be connected in series to meet the charging voltage requirement of the (n1+1)th electric vehicle, but are insufficient to achieve optimal charging for the (n+1)th electric vehicle (i.e., the number of idle modules can be connected in series to provide sufficient voltage, but not enough to provide sufficient voltage and current simultaneously). Therefore, the (n+1)th electric vehicle is slowly charged, and the queue starts from the (n+2)th electric vehicle. If the number of remaining modules is N... 总 -N can be connected in series but cannot meet the charging voltage requirements of the (n+1)th electric vehicle, so the queue starts from the (n+1)th electric vehicle.

[0089] The energy distribution device of the aforementioned charging pile includes a processor and a memory. The acquisition unit, determination unit, calculation unit, and distribution unit are all stored as program units in the memory, and the processor executes the program units stored in the memory to achieve the corresponding functions. All of the above modules are located in the same processor; alternatively, the modules may be located in different processors in any combination.

[0090] The processor contains a core, which retrieves the corresponding program unit from memory. One or more cores can be configured, and the charge stack is controlled by adjusting the core parameters.

[0091] The memory may include non-permanent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0092] This invention provides a computer-readable storage medium including a stored program, wherein, when the program is executed, it controls the device containing the computer-readable storage medium to perform the energy distribution method of the charging pile.

[0093] This invention provides a processor for running a program, wherein the program executes the energy distribution method of the charging pile.

[0094] This invention provides a device including a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, it performs at least the following steps:

[0095] Step S201: Under the condition of satisfying the preset conditions, the current status information and charging information of the electric vehicle are obtained. The preset conditions include at least one of the following: the power module of the charging pile is allocated for a predetermined time, at least one electric vehicle is connected to the charging pile, and at least one electric vehicle is fully charged. The current status information is used to characterize the charging status of the electric vehicle at the current time, and the charging information is used to characterize the charging status at the time when the electric vehicle is fully charged.

[0096] Step S202: Based at least the current status information and the charging information, determine the charging mode of the charging pile for the electric vehicle and the target number of the electric vehicles. The charging process of the charging pile for the electric vehicle includes multiple charging modes connected in sequence. Different charging modes correspond to different charging voltages and charging currents for the electric vehicles. The target number is the number of power modules that provide charging current and charging voltage to one of the electric vehicles. The charging modes and the target number are in one-to-one correspondence.

[0097] Step S203: Calculate the sum of the target quantities of the multiple electric vehicles mentioned above to obtain the target quantity sum;

[0098] Step S204: Based on the above-mentioned prepared quantity and the above-mentioned target quantity, the energy of the above-mentioned charging pile is distributed in the order of the above-mentioned charging mode to charge each of the above-mentioned electric vehicles in sequence.

[0099] The devices mentioned in this article can be servers, PCs, tablets, mobile phones, etc.

[0100] This application also provides a computer program product, which, when executed on a data processing device, is suitable for executing an initialization program having at least the following method steps:

[0101] Step S201: Under the condition of satisfying the preset conditions, the current status information and charging information of the electric vehicle are obtained. The preset conditions include at least one of the following: the power module of the charging pile is allocated for a predetermined time, at least one electric vehicle is connected to the charging pile, and at least one electric vehicle is fully charged. The current status information is used to characterize the charging status of the electric vehicle at the current time, and the charging information is used to characterize the charging status at the time when the electric vehicle is fully charged.

[0102] Step S202: Based at least the current status information and the charging information, determine the charging mode of the charging pile for the electric vehicle and the target number of the electric vehicles. The charging process of the charging pile for the electric vehicle includes multiple charging modes connected in sequence. Different charging modes correspond to different charging voltages and charging currents for the electric vehicles. The target number is the number of power modules that provide charging current and charging voltage to one of the electric vehicles. The charging modes and the target number are in one-to-one correspondence.

[0103] Step S203: Calculate the sum of the target quantities of the multiple electric vehicles mentioned above to obtain the target quantity sum;

[0104] Step S204: Based on the above-mentioned prepared quantity and the above-mentioned target quantity, the energy of the above-mentioned charging pile is distributed in the order of the above-mentioned charging mode to charge each of the above-mentioned electric vehicles in sequence.

[0105] It is obvious to those skilled in the art that the modules or steps of the present invention described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. They can be implemented using computer-executable program code, and thus can be stored in a storage device for execution by a computing device. In some cases, the steps shown or described can be performed in a different order than those described herein, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the present invention is not limited to any particular combination of hardware and software.

[0106] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0107] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0108] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0109] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process.Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0110] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0111] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0112] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0113] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0114] As can be seen from the above description, the embodiments of this application achieve the following technical effects:

[0115] 1) The energy distribution method of the charging pile of this application involves a charging pile applied to multiple electric vehicles. The charging pile includes a predetermined number of power modules. First, under preset conditions, the current status information and charging information of the electric vehicles are acquired. Then, based on at least the current status information and charging information, the charging mode of the charging pile for the electric vehicles and the target number of electric vehicles are determined. The charging process of the charging pile for the electric vehicles includes multiple charging modes connected in sequence. Different charging modes correspond to different charging voltages and charging currents for the electric vehicles. Then, the sum of the target numbers of the multiple electric vehicles is calculated to obtain the target number sum. Finally, based on the predetermined number and the target number sum, the energy of the charging pile is distributed according to the order of the charging modes to charge each electric vehicle sequentially. In this method, since the charging voltage and charging current requirements corresponding to each charging mode are different, a corresponding target number of power modules are used to charge the electric vehicles, so that each power module can operate in its efficient operating range. Then, the charging pile is controlled to charge multiple electric vehicles according to the order of the above charging modes and the principle of first-come, first-served for electric vehicles. By centrally managing and flexibly allocating the number of power modules in the charging pile, when multiple vehicles are charging simultaneously, the power modules can be rationally allocated based on the order of access time and the power capacity of the charging pile, i.e., the number of reserves. This optimizes the overall charging efficiency and the flexibility of the charging process, solving the technical problem of the lack of flexibility in the allocation of power modules in the charging pile in the prior art.

[0116] 2) The energy distribution device for the charging pile of this application is applied to multiple electric vehicles. The charging pile includes a predetermined number of power modules. An acquisition unit acquires the current status information and charging information of the electric vehicles under preset conditions. A determination unit determines the charging mode of the charging pile for the electric vehicles and the target number of electric vehicles based at least on the current status information and charging information. The charging process includes multiple charging modes connected sequentially, with different charging voltages and charging currents corresponding to different charging modes. A calculation unit calculates the sum of the target numbers of multiple electric vehicles to obtain the target number sum. The distribution unit distributes energy to the charging pile according to the predetermined number and the target number sum, in accordance with the order of the charging modes, to charge each electric vehicle sequentially. In this device, because the charging voltage and charging current requirements for each charging mode are different, a corresponding target number of power modules are used to charge the electric vehicles, allowing each power module to operate within its efficient operating range. The charging pile is then controlled to charge multiple electric vehicles according to the order of the charging modes and the principle of first-come, first-served for electric vehicles. By centrally managing and flexibly allocating the number of power modules in the charging pile, when multiple vehicles are charging simultaneously, the power modules can be rationally allocated based on the order of access time and the power capacity of the charging pile, i.e., the number of reserves. This optimizes the overall charging efficiency and the flexibility of the charging process, solving the technical problem of the lack of flexibility in the allocation of power modules in the charging pile in the prior art.

[0117] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for energy distribution in a charging pile, characterized in that, The charging pile is applied to multiple electric vehicles, the charging pile includes a predetermined number of power modules, and the method includes: Under the condition of meeting the preset conditions, the current status information and charging information of the electric vehicle are obtained. The preset conditions include at least one of the following: the power module of the charging pile is allocated for a predetermined time, at least one electric vehicle is connected to the charging pile, and at least one electric vehicle is fully charged. The current status information is used to characterize the charging status of the electric vehicle at the current moment, and the charging information is used to characterize the charging status at the moment when the electric vehicle is fully charged. Based at least on the current status information and the charging information, the charging mode of the charging pile for the electric vehicle and the target number of the electric vehicle are determined. The charging process of the charging pile for the electric vehicle includes multiple charging modes connected in sequence. Different charging modes correspond to different charging voltages and charging currents for the electric vehicles. The target number is the number of power modules that provide charging current and charging voltage to one electric vehicle. The charging modes and the target number are in one-to-one correspondence. Calculate the sum of the target numbers of the multiple electric vehicles to obtain the target number sum; Based on the prepared quantity and the target quantity, the energy of the charging pile is distributed in sequence according to the charging mode to charge each of the electric vehicles in turn. Determining the target number of electric vehicles based at least on the current status information and the charging information includes: Obtain a first quantity and a second quantity, wherein the first quantity is the number of power modules that provide the charging voltage to the electric vehicle, and the second quantity is the number of power modules that provide the charging current to the electric vehicle; The target quantity is obtained by multiplying the first quantity by the second quantity. Obtain the first and second quantities, including: According to the formula Calculate the first quantity N of the j-th charging mode. js , where V jmax V0 is the maximum charging voltage of the electric vehicle in the j-th charging mode, where V0 is the output voltage of one of the power modules, and j = 1, 2, 3, 4, 5. Used to characterize rounding up; According to the formula Calculate the second quantity N for the j-th charging mode. jp , among which, I jmax Ij is the maximum value of the charging current of the electric vehicle in the j-th charging mode, and I0 is the output current of one of the power modules.

2. The method according to claim 1, characterized in that, Under preset conditions, the current status information and charging information of the electric vehicle are obtained, including: The first charging voltage and the first charging current of the electric vehicle at the current time are obtained to obtain the current state information. The charging information is obtained by acquiring the second charging voltage and the second charging current corresponding to the moment when the electric vehicle is fully charged.

3. The method according to claim 2, characterized in that, The charging modes include a first charging mode, a second charging mode, a third charging mode, a fourth charging mode, and a fifth charging mode connected in sequence. The charging mode of the charging pile for the electric vehicle is determined based at least on the current state information and the charging information, including: The maximum voltage of the electric vehicle under constant current charging is obtained, and the maximum current of the electric vehicle under constant voltage charging is obtained. When the electric vehicle is under constant current charging and the first charging voltage is greater than 0 and less than or equal to half of the maximum voltage value, the charging mode of the charging pile for the electric vehicle is determined to be the first charging mode. When the electric vehicle is under constant current charging and the first charging voltage is greater than half of the maximum voltage value and less than or equal to the maximum voltage value, the charging mode of the charging pile for the electric vehicle is determined to be the second charging mode. If the first charging voltage is greater than the maximum voltage value and less than or equal to the second charging voltage, the charging mode of the charging pile for the electric vehicle is determined to be the third charging mode. When the electric vehicle is under constant voltage charging and the first charging current is greater than half of the maximum current value but less than or equal to the maximum current value, the charging mode of the charging pile for the electric vehicle is determined to be the fourth charging mode. When the electric vehicle is under constant voltage charging and the first charging current is greater than 0 and less than or equal to half of the maximum current, the charging mode of the charging pile for the electric vehicle is determined to be the fifth charging mode.

4. The method according to claim 1, characterized in that, Based on the prepared quantity and the target quantity, energy is distributed to the charging pile in sequence according to the charging mode to charge each of the electric vehicles sequentially, including: Determine whether the prepared quantity is greater than or equal to the target quantity. If the prepared quantity is greater than or equal to the target quantity, control the charging pile to charge all the electric vehicles sequentially according to the order of the charging mode. If the number of preparations is less than the sum of the target numbers, the charging pile is controlled to charge the first n electric vehicles sequentially according to the charging mode, wherein the sum of the target numbers of the first n electric vehicles is less than or equal to the number of preparations, and n is a positive integer greater than 0.

5. The method according to claim 4, characterized in that, When the number of prepared vehicles is less than the target number, after controlling the charging pile to charge the first n electric vehicles sequentially according to the charging mode, the method further includes: Calculate the difference between the sum of the target quantities of the first n electric vehicles and the reserve quantity to obtain the reserve difference; If the preparatory difference is greater than or equal to the first number of the (n+1)th electric vehicle, and if the preparatory difference is greater than or equal to the first number of the (n+1)th electric vehicle, the third number of power modules in the charging pile are controlled to charge the (n+1)th electric vehicle. Here, the first number is the number of power modules that provide the charging voltage to the electric vehicle, the third number is less than or equal to the preparatory difference, the third number is the product of a predetermined number and a fourth number, the predetermined number is less than the first number, and the fourth number is the number of power modules that provide the charging current to the electric vehicle. If the preparatory difference is less than the first number of the (n+1)th electric vehicle, the charging pile is controlled not to charge the (n+1)th electric vehicle.

6. An energy distribution device for a charging pile, characterized in that, The charging pile is used in multiple electric vehicles, the charging pile includes a pre-set number of power modules, and the device includes: The acquisition unit is used to acquire the current status information and charging information of the electric vehicle when the preset conditions are met. The preset conditions include at least one of the following: the power module of the charging pile is allocated for a predetermined time, at least one electric vehicle is connected to the charging pile, and at least one electric vehicle is fully charged. The current status information is used to characterize the charging status of the electric vehicle at the current moment, and the charging information is used to characterize the charging status at the moment when the electric vehicle is fully charged. A determining unit is configured to determine, at least based on the current state information and the charging information, the charging mode of the charging pile for the electric vehicle and the target number of the electric vehicle, wherein the charging process of the charging pile for the electric vehicle includes multiple charging modes connected in sequence, different charging modes correspond to different charging voltages and charging currents of the electric vehicle, and the target number is the number of power modules that provide charging current and charging voltage to one electric vehicle, and the charging mode and the target number correspond one-to-one; A calculation unit is used to calculate the sum of the target numbers of the multiple electric vehicles to obtain the target number sum; The allocation unit is used to allocate energy to the charging pile according to the prepared quantity and the target quantity, and in the order of the charging mode, so as to charge each of the electric vehicles sequentially. The determining unit further includes a fourth acquisition module and a first calculation module, wherein the fourth acquisition module is used to acquire a first quantity and a second quantity, wherein the first quantity is the number of power modules that provide the charging voltage to the electric vehicle, and the second quantity is the number of power modules that provide the charging current to the electric vehicle; the first calculation module is used to calculate the product of the first quantity and the second quantity to obtain the target quantity; The fourth acquisition module includes a first calculation submodule and a second calculation submodule, wherein the first calculation submodule is used to calculate according to the formula Calculate the first quantity N of the j-th charging mode. js , where V jmax V0 is the maximum charging voltage of the electric vehicle in the j-th charging mode, where V0 is the output voltage of one of the power modules, and j = 1, 2, 3, 4, 5. Used to characterize rounding up; the second calculation submodule is used to calculate according to the formula Calculate the second quantity N for the j-th charging mode. jp , among which, I jmax Ij is the maximum value of the charging current of the electric vehicle in the j-th charging mode, and I0 is the output current of one of the power modules.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein, when the program is executed, it controls the device on which the computer-readable storage medium is located to perform the method according to any one of claims 1 to 5.

8. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method described in any one of claims 1 to 5.

Images