Charging pile charging current adjustment method, device, equipment and storage medium

Abstract

The present invention discloses a charging current adjustment method, device, equipment, and storage medium for a charging pile, wherein the method includes the following steps: allocating the charging current of each charging circuit based on a comparison result of the maximum output current of a first and second charging pile and the maximum charging current currently allowed by the battery, as well as the maximum overcurrent capacity allowed by the charging circuits of the first and second charging piles; and dynamically adjusting the charging current of each charging pile based on the allocated charging current of each charging circuit during the battery charging process, according to the real-time acquisition of the maximum charging current currently allowed by the battery, the charging current of each charging circuit, and the actual charging current of each charging circuit. The present application can dynamically adjust and allocate the charging current in each charging circuit during dual-gun charging, giving priority to evenly distributing the charging current in the two charging circuits while taking into account the overcurrent capacity of the charging circuits, maximizing the charging performance of the battery and the charging pile, shortening the charging time, and improving charging safety.

Description

Technical Field

[0001] The present invention relates to the technical field of power battery charging management, and in particular to a charging pile charging current adjustment method, device, equipment and storage medium. Background Art

[0002] Currently, power battery charging currents are increasing. The maximum charging current of a single air-cooled charger is only 300A, which is no longer sufficient for power battery needs. Liquid-cooled chargers are also expensive. Currently, dual-charger solutions are commonly used for systems with charging currents exceeding 300A. Current current distribution for dual-charger charging primarily utilizes a master-slave strategy, where the master and slaves are either evenly split, or prioritized. Only when the master charging current cannot meet the battery's needs is the charging current allocated to the slave. This strategy of evenly distributing current between the master and slave may not fully meet the battery's charging power requirements when the charging pile output power is inconsistent. A master-prioritized current distribution strategy, however, results in a long-term imbalance in the charging current of the charging station, potentially leading to differences in the aging of the charging stations. This strategy also fails to consider the overcurrent capability of the charging circuit. When the maximum output current of the charging pile is high and the battery's current demand is also high, this can cause overcurrent in the charging circuit, creating safety risks.

[0003] Therefore, how to improve the charging efficiency of power batteries is a technical problem that needs to be solved urgently. Summary of the Invention

[0004] The main purpose of the present invention is to provide a charging current adjustment method, device, equipment and storage medium for a charging pile, which can dynamically adjust and distribute the charging current in each charging circuit during dual-gun charging, give priority to evenly distributing the charging current in the two charging circuits, and at the same time take into account the overcurrent capacity of the charging circuit, maximize the charging performance of the battery and the charging pile, shorten the charging time, and improve charging safety.

[0005] In a first aspect, the present application provides a method for adjusting the charging current of a charging pile, wherein the method comprises the steps of:

[0006] Allocate the charging current to each charging circuit based on a comparison result of the maximum output current of the first and second charging piles with the maximum charging current currently allowed by the battery and the maximum overcurrent capacity allowed by the charging circuits of the first and second charging piles;

[0007] Based on the allocated charging current of each charging circuit, during the battery charging process, the charging current of each charging pile is dynamically adjusted according to the real-time acquisition of the maximum charging current allowed by the current battery, the charging current of each charging circuit and the actual charging current of each charging circuit.

[0008] In combination with the first aspect above, as an optional implementation, if the difference between the charging current value of the first and second charging pile charging circuits and the actual charging current value is greater than or equal to the preset difference, and the duration reaches the set duration;

[0009] or the difference between the charging current values ​​of the first and second charging pile charging circuits and the actual charging current values ​​is less than or equal to the preset difference;

[0010] The current charging current distribution strategy for the first and second charging pile charging circuits is maintained, and the charging current of each charging circuit is continuously requested for charging.

[0011] In combination with the first aspect above, as an optional implementation, if the difference between the charging current value of the first charging pile charging circuit and the actual charging current value is greater than or equal to a preset difference, and the difference between the charging current value of the second charging pile charging circuit and the actual charging current value is less than the preset difference;

[0012] The charging current value of the charging circuit of the first charging pile is adjusted to be equal to the actual current value of the charging circuit of the first charging pile within the previous preset time;

[0013] The minimum value among the difference between the maximum output current value of the second charging pile and the charging current value of the first charging pile charging circuit, the difference between the maximum charging current value currently allowed by the battery and the charging current value of the first charging pile charging circuit, and the maximum charging current value allowed by the second charging pile charging circuit is taken as the charging current of the second charging pile charging circuit.

[0014] In combination with the first aspect above, as an optional implementation, determining a charging mode of the battery, where the charging mode includes single-charger charging and dual-charger charging;

[0015] If the battery charging mode is single-gun charging, the minimum value among the maximum charging current value currently allowed by the battery, the maximum output current value of the charging pile and the maximum charging current value allowed by the charging circuit is taken to request current for charging.

[0016] In combination with the first aspect above, as an optional implementation, if the maximum output current values ​​of the first charging pile charging circuit and the second charging pile charging circuit are both less than half of the maximum charging current value currently allowed by the battery;

[0017] The smaller value is taken from the maximum output current value of the first charging pile and the maximum continuous overcurrent value allowed by the charging circuit of the first charging pile as the charging current value of the charging circuit of the first charging pile;

[0018] The smaller value between the maximum output current value of the second charging pile and the maximum continuous overcurrent value allowed by the charging circuit of the second charging pile is taken as the charging current value of the charging circuit of the second charging pile.

[0019] In combination with the first aspect above, as an optional implementation, if the maximum output current value of the charging circuit of the first charging pile is less than half of the maximum charging current value currently allowed by the battery, and the maximum output current value of the charging circuit of the second charging pile is greater than or equal to half of the maximum charging current value currently allowed by the battery;

[0020] The smaller value is taken from the maximum output current value of the first charging pile and the maximum continuous overcurrent value allowed by the charging circuit of the first charging pile as the charging current value of the charging circuit of the first charging pile;

[0021] The minimum value among the difference between the maximum output current value of the second charging pile and the charging current value of the charging circuit of the first charging pile, the difference between the maximum charging current value currently allowed by the battery and the charging current value of the charging circuit of the first charging pile, and the maximum continuous overcurrent value allowed by the charging circuit of the second charging pile is taken as the charging current value of the charging circuit of the second charging pile.

[0022] In combination with the first aspect above, as an optional implementation, if the maximum output current values ​​of the charging circuits of the first and second charging piles are both greater than or equal to half of the maximum charging current value currently allowed by the battery;

[0023] The smaller value between half of the maximum charging current value currently allowed by the battery and the maximum continuous overcurrent value allowed by the charging circuit of the first charging pile is taken as the charging current value of the charging circuit of the first charging pile;

[0024] The smaller value between half of the maximum charging current value currently allowed by the battery and the maximum continuous overcurrent value allowed by the charging circuit of the second charging pile is taken as the charging current value of the charging circuit of the second charging pile.

[0025] In a second aspect, the present application provides a charging pile charging current adjustment device, the device comprising:

[0026] an allocation module, configured to allocate the charging current to each charging circuit based on a comparison result of the maximum output current of the first and second charging piles with the maximum charging current currently allowed by the battery and the maximum overcurrent capacity allowed by the charging circuits of the first and second charging piles;

[0027] The adjustment module is used to dynamically adjust the charging current of each charging pile based on the allocated charging current of each charging circuit during the battery charging process, according to the real-time acquisition of the maximum charging current allowed by the current battery, the charging current of each charging circuit and the actual charging current of each charging circuit.

[0028] In a third aspect, the present application further provides an electronic device comprising: a processor; and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the method described in any one of the first aspects is implemented.

[0029] In a fourth aspect, the present application further provides a computer-readable storage medium storing computer program instructions, which, when executed by a computer, enables the computer to execute any one of the methods described in the first aspect.

[0030] The present application provides a charging pile charging current adjustment method, device, equipment and storage medium, wherein the method includes the steps of: allocating the charging current of each charging circuit based on the comparison result of the maximum output current of the first and second charging piles with the maximum charging current currently allowed by the battery and the maximum overcurrent capacity allowed by the charging circuit of the first and second charging piles; based on the allocated charging current of each charging circuit, during the battery charging process, dynamically adjusting the charging current of each charging pile according to the real-time acquisition of the maximum charging current currently allowed by the battery, the charging current of each charging circuit and the actual charging current of each charging circuit. The present application can dynamically adjust and allocate the charging current in each charging circuit during dual-gun charging, give priority to evenly allocating the charging current in the two charging circuits, while taking into account the overcurrent capacity of the charging circuit, maximize the charging performance of the battery and charging pile, shorten the charging time, and improve charging safety.

[0031] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0033] Figure 1 This is a flow chart of a charging current adjustment method for a charging pile provided in an embodiment of the present application;

[0034] Figure 2 This is a schematic diagram of a charging current adjustment device for a charging pile provided in an embodiment of the present application;

[0035] Figure 3 This is a schematic diagram of charging current control provided in an embodiment of the present application;

[0036] Figure 4 A schematic diagram of an electronic device provided in an embodiment of the present application;

[0037] Figure 5 A schematic diagram of a computer-readable program medium provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, like numbers in different figures represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0039] Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. Some of the blocks shown in the drawings are functional entities that do not necessarily correspond to physically or logically separate entities.

[0040] The embodiments of the present application are further described in detail below with reference to the accompanying drawings.

[0041] Reference Figure 1 , Figure 1 The figure shows a flow chart of a charging current adjustment method for a charging pile provided by the present invention. Figure 1 As shown, the method includes the steps of:

[0042] Step S101: Based on the comparison result of the maximum output current of the first and second charging piles and the maximum charging current currently allowed by the battery and the maximum overcurrent capacity allowed by the charging circuits of the first and second charging piles, the charging current of each charging circuit is distributed.

[0043] Specifically, before distributing the charging current to each charging circuit, the following steps are performed:

[0044] Determine the battery charging mode, which includes single-gun charging and dual-gun charging. If the battery charging mode is determined to be single-gun charging, take the minimum value among the current maximum charging current value allowed by the battery, the maximum output current value of the charging pile, and the maximum charging current value allowed by the charging circuit to request current for charging.

[0045] Allocating the charging current of each charging circuit based on a comparison result of the maximum output current of the first and second charging piles with the maximum charging current currently allowed by the battery and the maximum overcurrent capacity allowed by the charging circuits of the first and second charging piles includes:

[0046] If the maximum output current values ​​of the first charging pile charging circuit and the second charging pile charging circuit are both less than half of the maximum charging current value currently allowed by the battery;

[0047] The smaller value is taken from the maximum output current value of the first charging pile and the maximum continuous overcurrent value allowed by the charging circuit of the first charging pile as the charging current value of the charging circuit of the first charging pile;

[0048] The smaller value between the maximum output current value of the second charging pile and the maximum continuous overcurrent value allowed by the charging circuit of the second charging pile is taken as the charging current value of the charging circuit of the second charging pile.

[0049] For easier understanding, let's take an example. During the charging configuration phase, the battery determines the charging mode. If it is single-charger charging, the minimum value among the battery's current maximum allowable charging current, the charging pile's maximum output current, and the maximum allowable charging current of the charging circuit is used to request current for charging. In single-charger charging mode, the battery system is charged by connecting to the charging pile through any charging port, while the other charging port is not charged. In this case, the minimum value among the battery's current maximum allowable charging current, the charging pile's maximum output current, and the maximum allowable charging current of the charging circuit is used to request current for charging.

[0050] In dual-charger charging mode, the battery system is charged by connecting to the charging pile through any charging port, while the other charging port is connected to the charging pile for charging at the same time, or the previous charging circuit is charging.

[0051] If dual-charging is used, the charging current of the two charging circuits is allocated according to the maximum output current value of the first charging pile and the second charging pile, the maximum continuous overcurrent value allowed by the first charging circuit and the second charging circuit, and the maximum charging current value allowed by the current battery. The specific allocation method is as follows:

[0052] First, compare the maximum output current of the first and second charging piles with half of the battery's current maximum allowable charging current. Note that, assuming there are four charging piles, compare the maximum output current of each loop charging pile with 25% of the battery's current maximum allowable charging current to determine whether the maximum output current of the loop charging pile is less than 25% of the battery's current maximum allowable charging current. If there are three charging piles, then the maximum output current is less than or equal to 33%. It can be understood that the maximum allowable charging current of the battery is determined based on the number of charging piles and compared with the maximum output current of each loop charging pile.

[0053] In one embodiment, if the number of charging piles is 4, if the maximum output current value of the charging circuit of each charging pile is less than 25% of the maximum charging current value currently allowed by the battery;

[0054] The smaller value is taken from the maximum output current value of each charging pile and the maximum continuous overcurrent value allowed by the charging circuit of each charging pile as the charging current value of the charging circuit of each charging pile.

[0055] Specifically, take two charging piles as an example: if the maximum output current value of the charging pile of the first circuit is less than half of the maximum charging current value currently allowed by the battery, and the maximum output current value of the charging pile of the second circuit is less than half of the maximum charging current value currently allowed by the battery, then the charging current value I1 requested by the first charging circuit is the smaller value between the maximum output current value of the first charging pile and the maximum continuous overcurrent value allowed by the first charging circuit, and the charging current value I2 requested by the second charging circuit is the smaller value between the maximum output current value of the second charging pile and the maximum continuous overcurrent value allowed by the second charging circuit.

[0056] In one embodiment, if the maximum output current value of the charging circuit of the first charging pile is less than half of the maximum charging current value currently allowed by the battery, and the maximum output current value of the charging circuit of the second charging pile is greater than or equal to half of the maximum charging current value currently allowed by the battery;

[0057] The smaller value is taken from the maximum output current value of the first charging pile and the maximum continuous overcurrent value allowed by the charging circuit of the first charging pile as the charging current value of the charging circuit of the first charging pile;

[0058] The minimum value among the difference between the maximum output current value of the second charging pile and the charging current value of the charging circuit of the first charging pile, the difference between the maximum charging current value currently allowed by the battery and the charging current value of the charging circuit of the first charging pile, and the maximum continuous overcurrent value allowed by the charging circuit of the second charging pile is taken as the charging current value of the charging circuit of the second charging pile.

[0059] For example: If the maximum output current value of the first charging pile is less than half of the maximum charging current value currently allowed by the battery, and the maximum output current value of the second circuit charging pile is greater than or equal to half of the maximum charging current value currently allowed by the battery, then the first charging circuit requests the charging current value I1 to take the smaller value between the maximum output current value of the first charging pile and the maximum continuous overcurrent value allowed by the first charging circuit, and the second charging circuit requests the charging current I2 to take the minimum value between the difference between the maximum output current value of the second charging pile and I1, the difference between the maximum charging current value currently allowed by the battery and I1, and the maximum continuous overcurrent value allowed by the second charging circuit.

[0060] If the maximum output current values ​​of the first and second charging pile charging circuits are both greater than or equal to half of the maximum charging current value currently allowed by the battery;

[0061] The smaller value between half of the maximum charging current value currently allowed by the battery and the maximum continuous overcurrent value allowed by the charging circuit of the first charging pile is taken as the charging current value of the charging circuit of the first charging pile;

[0062] The smaller value between half of the maximum charging current value currently allowed by the battery and the maximum continuous overcurrent value allowed by the charging circuit of the second charging pile is taken as the charging current value of the charging circuit of the second charging pile.

[0063] For example: if the maximum output current value of the first charging pile is greater than or equal to half of the maximum charging current value currently allowed by the battery, and the maximum output current value of the second charging pile is greater than or equal to half of the maximum charging current value currently allowed by the battery, then the first charging circuit requests a charging current value I1 that is smaller between half of the maximum charging current value currently allowed by the battery and the maximum continuous overcurrent value allowed by the first charging circuit, and the second charging circuit requests a charging current value I2 that is smaller between half of the maximum charging current value currently allowed by the battery and the maximum continuous overcurrent value allowed by the second charging circuit.

[0064] Step S102: Based on the allocated charging currents of the charging circuits, during the battery charging process, the charging currents of the charging piles are dynamically adjusted according to the real-time acquisition of the maximum charging current allowed by the current battery, the charging currents of the charging circuits, and the actual charging currents of the charging circuits.

[0065] Specifically, if the difference between the charging current value of the first and second charging pile charging circuits and the actual charging current value is greater than or equal to the preset difference, and the duration reaches the set duration;

[0066] or the difference between the charging current values ​​of the first and second charging pile charging circuits and the actual charging current values ​​is less than or equal to the preset difference;

[0067] The current charging current distribution strategy for the first and second charging pile charging circuits is maintained, and the charging current of each charging circuit is continuously requested for charging.

[0068] In one embodiment, if the difference between the charging current value of the first charging pile charging circuit and the actual charging current value is greater than or equal to the preset difference, and the difference between the charging current value of the second charging pile charging circuit and the actual charging current value is less than the preset difference;

[0069] The charging current value of the charging circuit of the first charging pile is adjusted to be equal to the actual current value of the charging circuit of the first charging pile within the previous preset time;

[0070] The minimum value among the difference between the maximum output current value of the second charging pile and the charging current value of the first charging pile charging circuit, the difference between the maximum charging current value currently allowed by the battery and the charging current value of the first charging pile charging circuit, and the maximum charging current value allowed by the second charging pile charging circuit is taken as the charging current of the second charging pile charging circuit.

[0071] For ease of understanding, an example is given. The maximum charging current value allowed by the current battery, the requested charging current values ​​of the first circuit and the second circuit, and the actual charging current values ​​of the first circuit and the second charging circuit are obtained. The current difference K1 of the requested charging current value of the first charging circuit minus the actual charging current value is compared with the preset difference K, and the current difference K2 of the requested charging current value of the second charging circuit minus the actual charging current value is compared with the preset difference K. The preset difference K is K=10A in this example, and the duration reaches the preset time T. The time T is T=5 seconds in this example, where 0A<k≤50A is generally taken, and the duration reaches the preset time T. T is generally 1 to 10 seconds. If it lasts for 5 seconds, the difference K1 ≥ 10A, and the difference K2 < 10A, then adjust the requested charging current value I1 of the first charging circuit to be equal to the actual current value of the first charging circuit in the previous 5 seconds, and the requested charging current I2 of the second charging circuit to be the minimum value among the difference between the maximum output current value of the second charging pile and I1, the current maximum charging current value allowed by the battery - I1, and the maximum charging current value allowed by the second charging circuit.

[0072] In the dual-gun charging configuration stage of this application, the power battery obtains the maximum output current value of the charging pile, compares the maximum output current value of the charging pile with half of the current allowable charging current value of the battery, and distributes the charging current of each circuit in combination with the maximum overcurrent capacity allowed by the charging circuit; during the dual-gun charging process, the power battery obtains the maximum charging current value allowed by the current battery and the requested charging current value of the first and second circuits, the actual charging current value of the first and second charging circuits in real time, compares the difference between the current difference between the requested charging current value of the first and second charging circuits minus the actual charging current value with the preset difference value K, and the duration reaches the preset time value, and dynamically adjusts the charging current value of the first and second charging circuits in combination with the maximum continuous overcurrent value allowed by the charging circuit. At the same time, the overcurrent capacity of the charging circuit is taken into account to maximize the charging performance of the battery and the charging pile, shorten the charging time, and improve charging safety.

[0073] Reference Figure 2 , Figure 2 The figure shows a schematic diagram of a charging current adjustment device for a charging pile provided by the present invention. Figure 2 As shown, the device includes:

[0074] Allocation module 201: It is used to allocate the charging current of each charging circuit based on the comparison result of the maximum output current of the first and second charging piles and the maximum charging current currently allowed by the battery and the maximum overcurrent capacity allowed by the charging circuits of the first and second charging piles.

[0075] Adjustment module 202: It is used to dynamically adjust the charging current of each charging pile based on the allocated charging current of each charging circuit during the battery charging process according to the real-time acquisition of the maximum charging current allowed by the current battery, the charging current of each charging circuit and the actual charging current of each charging circuit.

[0076] Furthermore, in a possible implementation, the adjustment module is further configured to: if the difference between the charging current values ​​of the first and second charging pile charging circuits and the actual charging current values ​​is greater than or equal to a preset difference, and the duration reaches a set duration;

[0077] or the difference between the charging current values ​​of the first and second charging pile charging circuits and the actual charging current values ​​is less than or equal to the preset difference;

[0078] The current charging current distribution strategy for the first and second charging pile charging circuits is maintained, and the charging current of each charging circuit is continuously requested for charging.

[0079] Furthermore, in a possible implementation manner, the adjustment module is further configured to: if the difference between the charging current value of the first charging pile charging circuit and the actual charging current value is greater than or equal to a preset difference, and the difference between the charging current value of the second charging pile charging circuit and the actual charging current value is less than the preset difference;

[0080] The charging current value of the charging circuit of the first charging pile is adjusted to be equal to the actual current value of the charging circuit of the first charging pile within the previous preset time;

[0081] The minimum value among the difference between the maximum output current value of the second charging pile and the charging current value of the first charging pile charging circuit, the difference between the maximum charging current value currently allowed by the battery and the charging current value of the first charging pile charging circuit, and the maximum charging current value allowed by the second charging pile charging circuit is taken as the charging current of the second charging pile charging circuit.

[0082] Furthermore, in a possible implementation, a judgment module is further included, which is used to judge the charging mode of the battery, and the charging mode includes single-gun charging and dual-gun charging;

[0083] If the battery charging mode is single-gun charging, the minimum value among the maximum charging current value currently allowed by the battery, the maximum output current value of the charging pile and the maximum charging current value allowed by the charging circuit is taken to request current for charging.

[0084] Furthermore, in a possible implementation manner, the allocation module is further configured to: if the maximum output current values ​​of the charging circuit of the first charging pile and the charging circuit of the second charging pile are both less than half of the maximum charging current value currently allowed by the battery;

[0085] The smaller value is taken from the maximum output current value of the first charging pile and the maximum continuous overcurrent value allowed by the charging circuit of the first charging pile as the charging current value of the charging circuit of the first charging pile;

[0086] The smaller value between the maximum output current value of the second charging pile and the maximum continuous overcurrent value allowed by the charging circuit of the second charging pile is taken as the charging current value of the charging circuit of the second charging pile.

[0087] Furthermore, in one possible implementation, the allocation module is further configured to: if the maximum output current value of the charging circuit of the first charging pile is less than half of the maximum charging current value currently allowed by the battery, and the maximum output current value of the charging circuit of the second charging pile is greater than or equal to half of the maximum charging current value currently allowed by the battery;

[0088] The smaller value is taken from the maximum output current value of the first charging pile and the maximum continuous overcurrent value allowed by the charging circuit of the first charging pile as the charging current value of the charging circuit of the first charging pile;

[0089] The minimum value among the difference between the maximum output current value of the second charging pile and the charging current value of the charging circuit of the first charging pile, the difference between the maximum charging current value currently allowed by the battery and the charging current value of the charging circuit of the first charging pile, and the maximum continuous overcurrent value allowed by the charging circuit of the second charging pile is taken as the charging current value of the charging circuit of the second charging pile.

[0090] Furthermore, in a possible implementation manner, the allocation module is further configured to: if the maximum output current values ​​of the charging circuits of the first and second charging piles are both greater than or equal to half of the maximum charging current value currently allowed by the battery;

[0091] The smaller value between half of the maximum charging current value currently allowed by the battery and the maximum continuous overcurrent value allowed by the charging circuit of the first charging pile is taken as the charging current value of the charging circuit of the first charging pile;

[0092] The smaller value between half of the maximum charging current value currently allowed by the battery and the maximum continuous overcurrent value allowed by the charging circuit of the second charging pile is taken as the charging current value of the charging circuit of the second charging pile.

[0093] Reference Figure 3 , Figure 3 The figure shows a schematic diagram of the charging current control provided by the present invention. Figure 3 As shown:

[0094] The battery system is equipped with a first charging interface, a second charging interface, and a discharge interface, and is connected to a first charging pile through a first charging circuit and to a second charging pile through a second charging circuit.

[0095] In single-gun charging mode, the battery system is charged by connecting to the charging pile through any charging interface, and the other charging interface is not charged. The minimum value among the current maximum charging current value allowed by the battery, the maximum output current value of the charging pile, and the maximum charging current value allowed by the charging circuit is used to request current for charging.

[0096] In dual-gun charging mode, the battery system is charged by connecting to the charging pile through any charging interface, and the other charging interface is connected to the charging pile for charging at the same time, or the previous charging circuit is charging (that is, it is detected that one circuit is charging while the other circuit is not charging, and after a period of time, the other circuit is charged again).

[0097] Refer to the following Figure 4 An electronic device 400 according to this embodiment of the present invention will be described. Figure 4 The electronic device 400 shown is merely an example and should not limit the functions and scope of use of the embodiments of the present invention.

[0098] like Figure 4 As shown, electronic device 400 is implemented as a general-purpose computing device. Components of electronic device 400 may include, but are not limited to, at least one processing unit 410, at least one storage unit 420, and a bus 430 connecting various system components (including storage unit 420 and processing unit 410).

[0099] The storage unit stores program codes, which can be executed by the processing unit 410, so that the processing unit 410 performs the steps according to various exemplary embodiments of the present invention described in the above “Example Method” section of this specification.

[0100] The storage unit 420 may include a readable medium in the form of a volatile storage unit, such as a random access memory unit (RAM) 421 and / or a cache memory unit 422 , and may further include a read-only memory unit (ROM) 423 .

[0101] The storage unit 420 may also include a program / utility 424 having a set (at least one) of program modules 425, such program modules 425 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0102] Bus 430 may represent one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0103] The electronic device 400 may also communicate with one or more external devices (e.g., a keyboard, a pointing device, a Bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 400, and / or any device that enables the electronic device 400 to communicate with one or more other computing devices (e.g., a router, a modem, etc.). Such communication may occur via an input / output (I / O) interface 450. Furthermore, the electronic device 400 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network such as the Internet) via a network adapter 460. As shown, the network adapter 460 communicates with other modules of the electronic device 400 via a bus 430. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with the electronic device 400, including but not limited to microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0104] Through the description of the above embodiments, it is easy for those skilled in the art to understand that the example embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.

[0105] According to the solution of the present disclosure, a computer-readable storage medium is also provided, on which a program product capable of implementing the above-mentioned method of this specification is stored. In some possible implementations, various aspects of the present invention may also be implemented in the form of a program product, which includes program code. When the program product is executed on a terminal device, the program code is used to cause the terminal device to perform the steps according to various exemplary embodiments of the present invention described in the "Exemplary Methods" section of this specification.

[0106] refer to Figure 5 As shown, a program product 500 for implementing the above method according to an embodiment of the present invention is described. The program product 500 may be a portable compact disc read-only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited thereto. In this document, a readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0107] The program product may be implemented in any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or component, or any combination thereof. More specific examples (a non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0108] A computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, which carries readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium that can transmit, propagate, or transfer a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0109] The program code embodied on the readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0110] The program code for performing the operations of the present invention may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, and the like, as well as conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a stand-alone software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving a remote computing device, the remote computing device may be connected to the user computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0111] Furthermore, the above-described figures are merely illustrative of the processes included in the method according to exemplary embodiments of the present invention and are not intended to be limiting. It is readily understood that the processes illustrated in the above-described figures do not indicate or limit the temporal order of these processes. Furthermore, it is readily understood that these processes may be executed synchronously or asynchronously, for example, in multiple modules.

[0112] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

[0113] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts 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, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

Claims

1. A charging current adjustment method for a charging pile, characterized in that: include: Allocate the charging current to each charging circuit based on a comparison result of the maximum output current of the first and second charging piles with the maximum charging current currently allowed by the battery and the maximum overcurrent capacity allowed by the charging circuits of the first and second charging piles; Based on the allocated charging current of each charging circuit, during the battery charging process, the charging current of each charging pile is dynamically adjusted according to the real-time acquisition of the maximum charging current allowed by the current battery, the charging current of each charging circuit, and the actual charging current of each charging circuit; If the difference between the charging current value of the first and second charging pile charging circuits and the actual charging current value is greater than or equal to the preset difference, and the duration reaches the set duration; or the difference between the charging current values ​​of the first and second charging pile charging circuits and the actual charging current values ​​is less than or equal to the preset difference; The current charging current distribution strategy for the first and second charging pile charging circuits is maintained, and the charging current of each charging circuit is continuously requested for charging.

2. The method according to claim 1, characterized in that Also includes: If the difference between the charging current value of the first charging pile charging circuit and the actual charging current value is greater than or equal to the preset difference, and the difference between the charging current value of the second charging pile charging circuit and the actual charging current value is less than the preset difference; The charging current value of the charging circuit of the first charging pile is adjusted to be equal to the actual current value of the charging circuit of the first charging pile within the previous preset time; The minimum value among the maximum output current value of the second charging pile, the difference between the maximum charging current value currently allowed by the battery and the charging current value of the charging circuit of the first charging pile, and the maximum charging current value allowed by the charging circuit of the second charging pile is taken as the charging current of the charging circuit of the second charging pile.

3. The method according to claim 1, characterized in that Before distributing the charging current to each charging circuit, the method includes: Determine the battery charging mode, where the charging mode includes single-charger charging and dual-charger charging; If the battery charging mode is single-gun charging, the minimum value among the maximum charging current value currently allowed by the battery, the maximum output current value of the charging pile and the maximum charging current value allowed by the charging circuit is taken to request current for charging.

4. The method according to claim 1, wherein The allocating the charging current of each charging circuit based on a comparison result of the maximum output current of the first and second charging piles with the maximum charging current currently allowed by the battery and the maximum overcurrent capacity allowed by the charging circuits of the first and second charging piles includes: If the maximum output current values ​​of the first charging pile charging circuit and the second charging pile charging circuit are both less than half of the maximum charging current value currently allowed by the battery; The smaller value is taken from the maximum output current value of the first charging pile and the maximum continuous overcurrent value allowed by the charging circuit of the first charging pile as the charging current value of the charging circuit of the first charging pile; The smaller value between the maximum output current value of the second charging pile and the maximum continuous overcurrent value allowed by the charging circuit of the second charging pile is taken as the charging current value of the charging circuit of the second charging pile.

5. The method according to claim 4, characterized in that Also includes: If the maximum output current value of the charging circuit of the first charging pile is less than half of the maximum charging current value currently allowed by the battery, and the maximum output current value of the charging circuit of the second charging pile is greater than or equal to half of the maximum charging current value currently allowed by the battery; The smaller value is taken from the maximum output current value of the first charging pile and the maximum continuous overcurrent value allowed by the charging circuit of the first charging pile as the charging current value of the charging circuit of the first charging pile; The minimum value among the maximum output current value of the second charging pile, the difference between the maximum charging current value currently allowed by the battery and the charging current value of the charging circuit of the first charging pile, and the maximum continuous overcurrent value allowed by the charging circuit of the second charging pile is taken as the charging current value of the charging circuit of the second charging pile.

6. The method according to claim 5, characterized in that Also includes: If the maximum output current values ​​of the first and second charging pile charging circuits are both greater than or equal to half of the maximum charging current value currently allowed by the battery; The smaller value between half of the maximum charging current value currently allowed by the battery and the maximum continuous overcurrent value allowed by the charging circuit of the first charging pile is taken as the charging current value of the charging circuit of the first charging pile; The smaller value between half of the maximum charging current value currently allowed by the battery and the maximum continuous overcurrent value allowed by the charging circuit of the second charging pile is taken as the charging current value of the charging circuit of the second charging pile.

7. A charging current adjustment device for a charging pile, characterized in that: include: an allocation module, configured to allocate the charging current to each charging circuit based on a comparison result of the maximum output current of the first and second charging piles with the maximum charging current currently allowed by the battery and the maximum overcurrent capacity allowed by the charging circuits of the first and second charging piles; An adjustment module is used to dynamically adjust the charging current of each charging pile based on the allocated charging current of each charging circuit during the battery charging process by obtaining in real time the maximum charging current allowed by the current battery, the charging current of each charging circuit, and the actual charging current of each charging circuit; The adjustment module is further configured to adjust the current when the difference between the charging current value of the first and second charging pile charging circuits and the actual charging current value is greater than or equal to the preset difference and the duration reaches the set duration; or the difference between the charging current values ​​of the first and second charging pile charging circuits and the actual charging current values ​​is less than or equal to the preset difference; The current charging current distribution strategy for the first and second charging pile charging circuits is maintained, and the charging current of each charging circuit is continuously requested for charging.

8. An electronic device, characterized in that: The electronic device comprises: processor; A memory having computer-readable instructions stored thereon, wherein when the computer-readable instructions are executed by the processor, the method according to any one of claims 1 to 6 is implemented.

9. A computer-readable storage medium, characterized in that The computer program instructions are stored therein, and when the computer program instructions are executed by a computer, the computer is caused to execute the method according to any one of claims 1 to 6.

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