Charging pile parallel charging method, device and system and storage medium

Abstract

The invention provides a charging pile parallel charging method, device and system and a storage medium, and belongs to the technical field of charging pile management, the method is applied to the charging pile parallel charging system, and the system comprises a charger, a controller and a plurality of parallel gun seats. The method comprises the following steps: in response to a received charging request of a user, locking a plurality of gun seats connected in parallel, and analyzing the charging request to determine a charging mode selected by the user; determining a first demand parameter of the target vehicle based on the charging mode; if the parameter value corresponding to the first demand parameter is greater than the parameter threshold value corresponding to the charger, determining a target input charging gun from the input charging guns based on the first demand parameter and the parameter threshold value corresponding to the charger; controlling the charger and the target input charging gun to charge the target vehicle; and controlling the gun base which is not connected with the target input charging gun to be unlocked. According to the invention, normal charging of other low-power vehicles can be ensured while power is supplied to high-power vehicles.

Description

Technical Field

[0001] This application belongs to the technical field of charging pile management. More specifically, it relates to a method, device, system, and storage medium for parallel charging of charging piles. Background Art

[0002] Currently, with the update of electric vehicle technology, the charging rate is getting faster and faster, and more and more vehicles support high-power charging. However, existing completed charging stations only have low-power DC charging piles that do not support high-power charging. If they are rebuilt or expanded, a large amount of capital is required to purchase high-power charging piles, and the old charging piles may be directly scrapped. Even if they continue to be used, they cannot meet the high-power charging demand. In addition, the DC charging piles that support high-power charging in existing charging stations also have the problem of low utilization rate. Therefore, how to make the charging piles meet the high-power charging demand and further improve the utilization rate of the charging piles has become an urgent problem to be solved. Summary of the Invention

[0003] The purpose of this application is to provide a method, device, system, and storage medium for parallel charging of charging piles, so that the charging station can supply power to high-power vehicles while ensuring normal charging of other low-power vehicles, and improve the utilization rate of the charging piles.

[0004] In the first aspect of the embodiments of this application, a method for parallel charging of charging piles is provided, which is applied to a parallel charging system of charging piles. The parallel charging system of charging piles includes a charger, a controller, and a plurality of parallel gun holders. Each gun holder is used to connect to an input charging gun. The charger is connected in parallel with any gun holder. The plurality of parallel gun holders and the charger are all connected to the controller; The method for parallel charging of charging piles includes: In response to receiving a charging request from a user, lock the plurality of parallel gun holders, and parse the charging request to determine the charging mode selected by the user; Based on the charging mode, determine the first demand parameter of the target vehicle; If the parameter value corresponding to the first demand parameter is greater than the parameter threshold corresponding to the charger, perform a first operation; Among them, the first operation includes: Based on the first demand parameter and the parameter threshold corresponding to the charger, determine the target input charging gun from each input charging gun; Control the charger and the target input charging gun to charge the target vehicle; and control the gun holders not connected to the target input charging gun to be unlocked.

[0005] In the second aspect of the embodiments of the present application, a parallel charging device for charging piles is provided, which is arranged in a controller. The controller is included in a parallel charging system for charging piles. The parallel charging system for charging piles further includes a charger and a plurality of parallel charging sockets. Each charging socket is used to connect to an input charging gun. The charger is connected in parallel with any one of the charging sockets. The plurality of parallel charging sockets and the charger are both connected to the controller; The device includes: A mode determination module, configured to lock the plurality of parallel charging sockets in response to receiving a charging request from a user, and parse the charging request to determine the charging mode selected by the user; A parameter determination module, configured to determine a first demand parameter of a target vehicle based on the charging mode; A charging module, configured to perform a first operation if the parameter value corresponding to the first demand parameter is greater than the parameter threshold corresponding to the charger; Wherein, the first operation includes: Determining a target input charging gun from each input charging gun based on the first demand parameter and the parameter threshold corresponding to the charger; Controlling the charger and the target input charging gun to charge the target vehicle; and controlling the charging sockets not connected to the target input charging gun to be unlocked.

[0006] In the third aspect of the embodiments of the present application, a parallel charging system for charging piles is provided, which includes a charger, a controller, and a plurality of parallel charging sockets. Each charging socket is used to connect to an input charging gun. The charger is connected in parallel with any one of the charging sockets. The plurality of parallel charging sockets and the charger are both connected to the controller. The controller includes a memory, a processor, and a computer program stored in the memory and running on the processor. When the processor executes the computer program, the steps of the above-mentioned parallel charging method for charging piles are implemented.

[0007] In the fourth aspect of the embodiments of the present application, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned parallel charging method for charging piles are implemented.

[0008] The beneficial effects of the parallel charging method, device, system, and storage medium for charging piles provided by the embodiments of the present application are as follows: This application first determines the charging mode according to the user's charging request, and the charging methods corresponding to different charging modes are different. This application connects low-power charging guns in parallel, so that the total output can meet the charging requirements of high-power vehicles, and can realize the reasonable utilization of charging gun resources and improve the energy utilization rate of the charging pile. For example, when the vehicle demand exceeds the parameter threshold of the charger, the controller automatically selects multiple input charging guns to be connected in parallel for output, breaking through the single-gun power limit, meeting the fast charging requirements of high-power vehicle models, and the unselected gun seats are automatically unlocked to allow other vehicles to access, avoiding resource idleness caused by single-gun failures or insufficient power in traditional multi-gun charging piles. In summary, through the dual mechanisms of multi-gun parallel cooperation and dynamic resource unlocking, this application can break through the hardware power bottleneck, provide charging services for high-power vehicles, and release unused charging guns in a timely manner to improve the utilization rate of the charging pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0010] Figure 1 It is a schematic flowchart of the parallel charging method of the charging pile provided by an embodiment of this application; Figure 2 It is a structural block diagram of the parallel charging system of the charging pile provided by an embodiment of this application; Figure 3 It is a structural block diagram of the power distribution device provided by an embodiment of this application; Figure 4 It is a structural block diagram of the parallel charging device of the charging pile provided by an embodiment of this application; Figure 5 It is a schematic block diagram of the controller provided by an embodiment of this application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0011] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of this application. However, those skilled in the art should clearly understand that this application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of this application.

[0012] To make the purpose, technical solutions, and advantages of this application clearer, the following will be described through specific embodiments with reference to the drawings.

[0013] Please refer to Figure 1 , Figure 1 which is a schematic flowchart of a charging pile parallel charging method provided in an embodiment of the present application, and is applied to a charging pile parallel charging system. Refer to Figure 2 , Figure 2 which is a structural block diagram of a charging pile parallel charging system provided in an embodiment of the present application. The charging pile parallel charging system includes a charger, a controller, a liquid cooling system, an output charging gun, a plurality of parallel gun seats, and a plurality of electronic locks. Each gun seat is used to connect to an input charging gun, each input charging gun corresponds to a charging pile, and each gun seat corresponds to an electronic lock. The charger is connected in parallel with any gun seat, and the plurality of parallel gun seats are connected to the output charging gun through a power distribution device. The charger, the power distribution device, the liquid cooling system, the plurality of parallel gun seats, and the plurality of electronic locks are all connected to the controller.

[0014] In this embodiment, the controller controls the operation of the entire system, can perform logical operations, control the locking / unlocking of the electronic lock, control the closing / opening of the contactor in the power distribution device, control the startup / shutdown of the liquid cooling system, communicate with the vehicle to be charged through the output charging gun, and communicate with the charging pile corresponding to the input charging gun through the gun seat. The function of the liquid cooling system is: when the vehicle is charging, in order to ensure that the output charging gun in the system outputs stably at high power and will not be damaged due to heat. The charger can convert the alternating current of the input-side power grid into direct current. The gun seat is a DC charging socket specified by the national standard, including communication lines, power transmission lines, etc. When the charging pile parallel charging system is not charging, the gun seat is equivalent to an ordinary gun seat and is used to place the idle charging gun; when charging, the gun seat can transmit the low-power charging energy of the corresponding charging pile to the system through the input charging gun.

[0015] The function of this system is to convert low-power output into high-power output to meet the charging needs of the vehicle, and when the vehicle is charging, to prevent the input-side charging gun from being pulled out by other users, affecting the charging efficiency; at the same time, as the charging progresses, gradually unlock the unused input-side charging guns to improve the utilization rate of the charging piles and better meet the customer needs.

[0016] Further, in this embodiment, the charging pile parallel charging method can be executed by the Figure 2 controller shown in, and the charging pile parallel charging method can include steps S101 - step S103.

[0017] S101: In response to receiving a charging request from the user, lock the plurality of parallel gun seats, and parse the charging request to determine the charging mode selected by the user.

[0018] In this embodiment, the controller detects the user's first trigger operation and determines that the user has a charging requirement. The first trigger operation is obtained from the user's selection operation or click operation on the human-computer interaction interface. For example, pressing a button for a charging request, and this charging request contains key information such as the charging mode.

[0019] In this embodiment, after the controller receives the user's charging request, it locks multiple parallel gun seats and parses the charging request to determine the charging mode selected by the user. It can be understood that: after receiving the charging request, first lock multiple parallel gun seats, and then parse the charging request to determine the charging mode selected by the user; or after receiving the charging request, first parse the charging request to determine the charging mode selected by the user, and then lock multiple parallel gun seats; or locking multiple parallel gun seats and determining the charging mode selected by the user can be carried out simultaneously.

[0020] After the controller receives the user's charging request, the controller locks all the gun seats with inserted guns through multiple electronic locks (for example, one electronic lock corresponds to one inserted gun, that is, one electronic lock locks the gun seat of one inserted gun), preventing other users from randomly unplugging or misoperating, and ensuring the safety and reliability of the charging process.

[0021] In this embodiment, the charging mode is determined by the present application based on multiple aspects such as the historical data of the charging station and the degree of damage to the vehicle. The charging mode includes three types, namely the rapid charging mode, the battery maintenance mode, and the timed full charge mode.

[0022] The rapid charging mode is for the working condition where the user has limited time and needs to quickly charge the electric vehicle battery. The charging pile parallel charging system can charge at full speed according to the required power of the target vehicle (the vehicle to be charged by the user), so that the battery capacity quickly reaches 100%.

[0023] The battery maintenance mode is a condition in which the user's vehicle is charged according to the battery data and charging rate of the user's vehicle, with the purpose of protecting the battery to the greatest extent. From the existing data, it can be concluded that slow charging from 0.1C to 0.5C and charging to SOC90% will cause less damage to the battery. This mode can be used when the user has plenty of time. Among them, C represents the rated capacity of the battery (such as a 10Ah battery, 1C is a charge and discharge current of 10A), and 0.1C-0.5C belongs to the low to medium-low rate range, which is suitable for scenarios with high requirements for stability and life. For example, the user sets it in the human-computer interaction interface and selects the charging rate from 0.1C to 0.5C. This mode charges to SOC90% by default. If it needs to be charged to SOC100%, the full condition is modified to 100%. The system calculates the charging current based on the vehicle battery data and the charging rate set by the user, controls the total output current of the control system to the calculated charging current, and charges in constant current mode until SOC90%. This mode has a slow charging rate but can increase battery life.

[0024] The timed full charge mode means that according to the charging time set by the user, the system charges at constant power to a full state under the condition of maximum power operation. In this mode, the user only needs to set the full charge time, and under the condition of maximum power operation, the system charges at constant power to SOC100%. This mode charges as slowly as possible to increase battery life without delaying the user's use of the vehicle. Considering the situation where the user's itinerary changes after starting charging and the charging mode needs to be changed, the charging mode can be changed in this system, or a wireless communication unit can be added, and the mode switching can be achieved by using a small program or APP control on the mobile phone.

[0025] S102: Determine a first demand parameter of the target vehicle based on a charging mode. The charging mode includes a first charging mode, a second charging mode, and a third charging mode; Wherein, determining the first requirement parameter of the target vehicle based on the charging mode includes: If the charging mode is the first charging mode, determining that the first demand parameter of the target vehicle is a power parameter; If the charging mode is the second charging mode, determining that the first demand parameter of the target vehicle is a current parameter; If the charging mode is the third charging mode, the target power value is determined based on the battery capacity and charging time of the target vehicle, and the first demand parameter of the target vehicle is determined based on the comparison result between the target power value and the required power. The required power is the current power value of the target vehicle obtained by the charger.

[0026] In this embodiment, the target vehicle is the vehicle that needs to be charged currently, that is, an electric vehicle or other device connected by an output charging gun. The first demand parameter is the vehicle's basic charging parameter directly related to the charging mode, which usually includes: rated voltage, rated current, maximum power demand, battery state parameter, etc. Under different charging modes, the first demand parameter of the target vehicle is different. The first charging mode is the rapid charging mode, the second charging mode is the battery maintenance mode, and the third charging mode is the timed full charge mode. For example, when the vehicle is set to the rapid charging mode or the timed full charge mode, the first demand parameter of the target vehicle can be the power parameter; when the vehicle is set to the battery maintenance mode, the first demand parameter of the target vehicle can be the current parameter.

[0027] When the vehicle is set to the timed full charge mode, it is necessary to obtain the battery capacity and charging duration of the target vehicle to calculate the target power value of the vehicle, that is, the target power value . E represents the battery capacity, α represents the charging efficiency, and t represents the charging duration. Determine how to charge according to the magnitude relationship between the target power value and the current power value of the target vehicle. If , then determine that the first demand parameter is the power parameter, and charge the target vehicle based on the charging method in the rapid charging mode. If , it means that the target vehicle is limited by the maximum power and it is impossible to be fully charged within the charging duration, and the user needs to be reminded to change the charging duration.

[0028] S103: If the parameter value corresponding to the first demand parameter is greater than the parameter threshold corresponding to the charger, perform the first operation.

[0029] Among them, the first operation includes: determining the target input charging gun from each input charging gun based on the first demand parameter and the parameter threshold corresponding to the charger; controlling the charger and the target input charging gun to charge the target vehicle; and controlling the gun holder not connected to the target input charging gun to be unlocked.

[0030] In this embodiment, after determining the first demand parameter according to the charging mode, the controller can control the charger to start the insulation detection. After the insulation detection is completed, the controller obtains the demand power value or demand current value of the target vehicle (i.e., the parameter value corresponding to the first demand parameter) through the output charging gun. The parameter threshold corresponding to the charger is the maximum output capacity supported by the charger itself (such as the maximum power threshold, the maximum current threshold, etc.). When the parameter value corresponding to the first demand parameter is greater than the parameter threshold corresponding to the charger, it indicates that the output of the charger itself can no longer meet the demand of the target vehicle, and it is necessary to determine the target input charging gun from each input charging gun so that the charger and the target input charging gun jointly supply power to the target vehicle. At the same time, if the target input charging gun has been determined, the gun seats corresponding to the remaining input charging guns without charging requirements can be unlocked to facilitate the charging of other low-power vehicles.

[0031] In this embodiment, after determining the target input charging gun, the charger and the target input charging gun can be controlled to charge the target vehicle first, and then the gun seats not connected to the target input charging gun can be controlled to be unlocked; or the gun seats not connected to the target input charging gun can be controlled to be unlocked first, and then the charger and the target input charging gun can be controlled to charge the target vehicle; or the two can be controlled to occur simultaneously.

[0032] It can be concluded from the above that the present application first determines the charging mode according to the user's charging request, and the charging methods corresponding to different charging modes are different. The present application connects small-power charging guns in parallel, so that the total output can meet the charging requirements of high-power vehicles, and the charging gun resources can be reasonably utilized, improving the energy utilization rate of the charging pile. For example, when the vehicle demand exceeds the parameter threshold of the charger, the controller automatically selects multiple input charging guns to be connected in parallel for output, breaking through the single-gun power limit, meeting the fast charging requirements of high-power vehicle models, and the unselected gun seats are automatically unlocked to allow other vehicles to access, avoiding resource idleness caused by single-gun failures or insufficient power in traditional multi-gun charging piles. The present application also compares the first demand parameter with the parameter threshold of the charger in real time, preferentially calls the optimal combination of input charging guns, balances the charging efficiency and equipment loss (such as preferentially using guns with longer service life), and extends the overall system life.

[0033] In summary, through the dual mechanisms of multi-gun parallel cooperation and dynamic resource unlocking, the present application can break through the hardware power bottleneck, provide charging services for high-power vehicles, and release unused charging guns in time to improve the utilization rate of the charging pile.

[0034] In an embodiment of the present application, based on the first demand parameter and the parameter threshold corresponding to the charger, the target input charging gun is determined from each input charging gun; controlling the charger and the target input charging gun to charge the target vehicle includes: Based on the target charging sequence of the charging guns, determine the first input charging gun from each input charging gun as the target input charging gun, and control the charger and the target input charging gun to charge the target vehicle; Determine a new first parameter threshold, which is obtained based on the parameter threshold of the target input charging gun and the parameter threshold corresponding to the charger; If the new first parameter threshold is less than the parameter value corresponding to the first demand parameter, then loop to execute the target charging sequence based on the charging guns, determine the second input charging gun from the currently uncharged input charging guns, and use the second input charging gun and the charged input charging guns as the target input charging guns, and control the charger and the target input charging guns to charge the target vehicle, and determine a new first parameter threshold until the new first parameter threshold is not less than the parameter value corresponding to the first demand parameter.

[0035] In this embodiment, refer to Figure 3 , determine the target charging sequence of the charging guns based on the label information of the charging guns, or determine the target charging sequence of the charging guns based on the cumulative working hours of the charging guns. The label of each gun seat is the same as the label of the input charging gun. For example, label the input charging guns (1, 2, 3,... n), then the parameter threshold of each input charging gun can be the maximum power threshold (P1, P2,... P n ), and the cumulative working hours of each input charging gun are (T1, T2,... T n ). The target charging sequence can be arranged in the order of the labels of the charging guns, that is, first start the input charging gun 1 to charge the target vehicle, and then start the input charging gun 2 to charge the target vehicle, etc. The system allocates storage space for the working hours of each charging pile corresponding to each input charging gun, and the charging time is accumulated each time, and it is not lost when powered off. Therefore, the target charging sequence can also be arranged in ascending order of the cumulative working hours of each input charging gun. That is, the input charging gun with the minimum cumulative working hours charges the target vehicle first, which can increase the service life of the charging pile corresponding to the input charging gun.

[0036] In this embodiment, if the first demand parameter is a power parameter, then the charging mode at this time can be the rapid charging mode. The specific charging process is as follows: Where represents the current power value of the target vehicle, that is, the required power of the target vehicle, represents the output power value of the charger. When , then control the charger to follow Output the power value to charge the target vehicle. At the same time, the controller communicates with the charging piles corresponding to all the connected input charging guns through the CAN1...CANn communication lines, and sequentially obtains the maximum power thresholds (P1, P2,..., P n ).

[0037] Initially, take , that is, the new first parameter threshold. If , then select charging pile 1 to charge at the power of , and at the same time unlock all the gun seats except gun seat 1.

[0038] If , then let , and so on. When , satisfying , then select charging pile 1, charging pile 2... charging pile x - 1 to output power according to , charging pile x to output power according to , and unlock the gun seats corresponding to the charging piles with serial numbers greater than x.

[0039] If the first demand parameter is a current parameter, the charging mode at this time can be the battery maintenance mode. The specific charging process is as follows: Among them represents the current value of the target vehicle, that is, the required current of the target vehicle, represents the output current value of the charger. When , then control the charger to charge the target vehicle with the output current value of through the CAN' communication line. At the same time, the controller communicates with the charging piles corresponding to all the connected input charging guns through the CAN1...CANn communication lines, and sequentially obtains the maximum current thresholds (I1, I2,..., I n ).

[0040] Initially, take , that is, the new first parameter threshold. If , then select charging pile 1 to charge with the current of , and at the same time unlock all the gun seats except gun seat 1.

[0041] If , then let , and so on. When , satisfying , then select charging pile 1, charging pile 2... charging pile x - 1 to output current according to , charging pile x to output current according to , and unlock the gun seats corresponding to the charging piles with serial numbers greater than x.

[0042] It can be concluded from the above that in this embodiment, by comparing the power multiple times, the input guns can be successively added to meet the output requirements of high-power vehicle models. Based on the physical priority of the label information (such as high-power charging guns taking precedence) or the loss balance of the cumulative duration (sorting according to the cumulative duration, with the ones with shorter time taking precedence to participate in charging, and during the charging process, the charging piles with longer charging time taking precedence to stop), this embodiment can optimize the device call order and extend the device life. This embodiment can also avoid the resource waste of starting all charging guns in full quantity in the traditional solution, and only invest the necessary number of charging guns to improve the equipment utilization rate.

[0043] In an embodiment of the present application, the method for parallel charging of charging piles further includes: If all input charging guns are charging the target vehicle and the new first parameter threshold is less than the parameter value corresponding to the first demand parameter, then control the charger and the target input charging gun to charge the target vehicle; When it is detected that an idle input charging gun is connected to the gun seat, adjust the target charging order based on the idle input charging gun, and loop to execute the target charging order based on the charging gun, determine the second input charging gun from the currently uncharged input charging guns, and use the second input charging gun and the charged input charging guns as the target input charging guns, and control the charger and the target input charging guns to charge the target vehicle, and determine the new first parameter threshold until the new first parameter threshold is not less than the parameter value corresponding to the first demand parameter.

[0044] In this embodiment, there may be a situation where not all gun seats are fully inserted with guns. At this time, if , there still exists , then charge at the existing maximum power P0. If the controller detects that an idle input charging gun is connected to the gun seat, immediately lock the gun seat corresponding to the idle input charging gun and start charging with the idle charging gun. If it is detected that multiple idle charging guns are connected to the gun seat, based on the target charging order of the charging guns, determine the second input charging gun from the currently uncharged input charging guns, and use the second input charging gun and the charged input charging guns as the target input charging guns, and select the target input charging guns to charge the target vehicle until the system can charge at the demand power of the target vehicle.

[0045] It can be concluded from the above that in this embodiment, when charging the target vehicle based on the currently accessible input charging guns, if there is still a situation where the maximum charging power is less than the target demand power, and at this time if an idle input charging gun is connected to the gun seat, the input charging gun will be immediately started to charge the target vehicle, so as to ensure that when a new input charging gun is connected, the system charges at the power closest to the demand power of the target vehicle, better meeting the user's needs.

[0046] In an embodiment of the present application, the method for parallel charging of charging piles further includes: If the parameter value corresponding to the first demand parameter is less than or equal to the parameter threshold corresponding to the charger, control the charger to charge the target vehicle; and control all gun holders connected to the input charging gun to unlock.

[0047] In this embodiment, when the parameter value corresponding to the first demand parameter is less than or equal to the parameter threshold corresponding to the charger, it indicates that only the output power or output current of the charger itself can meet the charging demand of the target vehicle, and no additional input charging gun compensation is required. At this time, only the charger can be controlled to charge the target vehicle, and at the same time, all gun holders connected to the input charging gun are controlled to unlock to meet the charging needs of other low-power vehicles, that is, other low-power vehicles can charge through these unlocked input charging guns.

[0048] In an embodiment of the present application, refer to Figure 3 , the charging pile parallel charging system further includes a power distribution device, and the power distribution device includes a plurality of first relays and a second relay; each first relay is connected to a gun holder or a charger, the plurality of first relays are all connected to the second relay, and the second relay is further connected to the output charging gun; in the embodiment of the present application, after controlling the charger and the target input charging gun to charge the target vehicle, the method may further include: In response to the parameter value corresponding to the first demand parameter being less than or equal to the second parameter threshold, the second parameter threshold is the sum of the parameter threshold corresponding to the charger and the parameter threshold corresponding to the target input charging gun, Based on the target charging sequence of the charging guns, determine a third input charging gun from each target input charging gun as the input charging gun to be disconnected, and control the first relay connected to the gun holder corresponding to the input charging gun to be disconnected; Determine a new second parameter threshold, and the new second parameter threshold is obtained based on the parameter thresholds of the currently charged input charging guns and the parameter threshold corresponding to the charger; If the parameter value corresponding to the first demand parameter is less than or equal to the new second parameter threshold, then loop to execute determining a third input charging gun from each target input charging gun as the input charging gun to be disconnected based on the target charging sequence of the charging guns, and controlling the first relay connected to the gun holder corresponding to the input charging gun to be disconnected, and determining a new second parameter threshold until the new second parameter threshold is less than the parameter value corresponding to the first demand parameter.

[0049] In this embodiment, as the battery power of the target vehicle increases and the vehicle demand power decreases accordingly, a third input charging gun, i.e., the charging gun to be disconnected, is selected from each target input charging gun, the first relay connected to it is disconnected, and at the same time, the electronic lock corresponding to this charging gun is unlocked. Each target input charging gun is released in sequence until the remaining charger charges the target vehicle. When the battery of the target vehicle is fully charged, the charging ends, and all relays are disconnected, and the charging ends.

[0050] In this embodiment, if the target vehicle is charging through the motor and n input charging guns at this time, the method for selecting the third input charging gun can be: First, select according to the label information of the charging piles. First, release the charging pile corresponding to the nth gun seat, disconnect the relay Kn, and unlock the electronic lock n; secondly, in the order of the labels, release the charging pile corresponding to the n - 1th gun seat, disconnect the relay Kn - 1, and unlock the electronic lock n - 1, and so on.

[0051] Second, select according to the cumulative duration of each target input charging gun, arrange the charging guns with longer cumulative charging duration in the front for priority release, and arrange the charging guns with shorter cumulative charging duration at the back for release until all target input charging guns are released.

[0052] Corresponding to the parallel charging method of the charging pile in the above embodiment, Figure 4 is the structural block diagram of the parallel charging device of the charging pile provided by an embodiment of the present application. For the convenience of description, only the parts related to the embodiment of the present application are shown. Refer to Figure 4 , the parallel charging device 20 of the charging pile is set in the controller, the controller is included in the parallel charging system of the charging pile, the parallel charging system of the charging pile further includes a charger and a plurality of parallel gun seats, each gun seat is used to connect with an input charging gun, the charger is connected in parallel with any gun seat, and the plurality of parallel gun seats and the charger are all connected to the controller; The parallel charging device 20 of the charging pile includes a mode determination module 21, a parameter determination module 22, and a charging module 23.

[0053] Among them, the mode determination module 21 is used to lock the plurality of parallel gun seats in response to receiving a user's charging request, and parse the charging request to determine the charging mode selected by the user; The parameter determination module 22 is used to determine the first demand parameter of the target vehicle based on the charging mode; The charging module 23 is used to execute a first operation if the parameter value corresponding to the first demand parameter is greater than the parameter threshold corresponding to the charger; Among them, the first operation includes: Determine the target input charging gun from each input charging gun based on the first demand parameter and the parameter threshold corresponding to the charger; Control the charger and the target input charging gun to charge the target vehicle; and, control the gun seat not connected to the target input charging gun to unlock.

[0054] In an embodiment of the present application, the charging module 23 is specifically configured to: Based on the target charging order of the charging guns, determine the first input charging gun from each input charging gun as the target input charging gun, and control the charger and the target input charging gun to charge the target vehicle; Determine a new first parameter threshold, where the new first parameter threshold is obtained based on the parameter threshold of the target input charging gun and the parameter threshold corresponding to the charger; If the new first parameter threshold is less than the parameter value corresponding to the first demand parameter, then loop to execute the following steps: Based on the target charging order of the charging guns, determine the second input charging gun from the currently uncharged input charging guns, and use the second input charging gun and the charged input charging guns as the target input charging guns, and control the charger and the target input charging gun to charge the target vehicle, and determine a new first parameter threshold until the new first parameter threshold is not less than the parameter value corresponding to the first demand parameter.

[0055] In an embodiment of the present application, the charging module 23 is further configured to: Determine the target charging order of the charging guns based on the label information of the charging guns, or determine the target charging order of the charging guns based on the cumulative working duration of the charging guns.

[0056] In an embodiment of the present application, the charging module 23 is further configured to: If all input charging guns have charged the target vehicle and the new first parameter threshold is less than the parameter value corresponding to the first demand parameter, then control the charger and the target input charging gun to charge the target vehicle; When it is detected that an idle input charging gun is connected to the gun seat, adjust the target charging order based on the idle input charging gun, loop to execute the following steps: Based on the target charging order of the charging guns, determine the second input charging gun from the currently uncharged input charging guns, and use the second input charging gun and the charged input charging guns as the target input charging guns, and control the charger and the target input charging gun to charge the target vehicle, and determine a new first parameter threshold until the new first parameter threshold is not less than the parameter value corresponding to the first demand parameter.

[0057] In an embodiment of the present application, the charging mode includes a first charging mode, a second charging mode, and a third charging mode; The parameter determination module 22 is specifically configured to: If the charging mode is the first charging mode, then determine that the first demand parameter of the target vehicle is the power parameter; If the charging mode is the second charging mode, determine that the first demand parameter of the target vehicle is the current parameter; If the charging mode is the third charging mode, determine the target power value based on the battery capacity and charging duration of the target vehicle, and determine the first demand parameter of the target vehicle based on the comparison result between the target power value and the demand power, where the demand power is the current power value of the target vehicle obtained by the charger.

[0058] In an embodiment of the present application, the charging module 23 is further configured to: If the parameter value corresponding to the first demand parameter is less than or equal to the parameter threshold corresponding to the charger, control the charger to charge the target vehicle; and control all the gun seats connected to the input charging gun to be unlocked.

[0059] In an embodiment of the present application, the charging pile parallel charging system further includes a power distribution device, and the power distribution device includes a plurality of first relays; each first relay is connected to a gun seat or a charger; The charging module 23 is further configured to: In response to the parameter value corresponding to the first demand parameter being less than or equal to the second parameter threshold, where the second parameter threshold is the sum of the parameter threshold corresponding to the charger and the parameter threshold corresponding to the target input charging gun, Based on the target charging order of the charging guns, determine a third input charging gun from each target input charging gun as the input charging gun to be disconnected, and control the first relay connected to the gun seat corresponding to the input charging gun to be disconnected; Determine a new second parameter threshold, where the new second parameter threshold is obtained based on the parameter threshold of the currently charged input charging gun and the parameter threshold corresponding to the charger; If the parameter value corresponding to the first demand parameter is less than or equal to the new second parameter threshold, loop to execute: based on the target charging order of the charging guns, determine a third input charging gun from each target input charging gun as the input charging gun to be disconnected, control the first relay connected to the gun seat corresponding to the input charging gun to be disconnected, and determine a new second parameter threshold until the new second parameter threshold is less than the parameter value corresponding to the first demand parameter.

[0060] See Figure 5 , Figure 5 is a schematic block diagram of a controller provided in an embodiment of the present application. As Figure 5The controller 300 in the present embodiment shown may include: one or more processors 301, one or more input devices 302, one or more output devices 303, and one or more memories 304. The above-mentioned processors 301, input devices 302, output devices 303, and memories 304 communicate with each other through a communication bus 305. The memory 304 is used to store computer programs, and the computer programs include program instructions. The processor 301 is used to execute the program instructions stored in the memory 304. Among them, the processor 301 is configured to call the program instructions to execute the functions of each module in the above device embodiments, for example Figure 4 the functions of the mode determination module 21, parameter determination module 22, and charging module 23 shown.

[0061] It should be understood that in the embodiments of the present application, the so-called processor 301 may be a central processing unit (CPU), and this processor may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), off-the-shelf programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or this processor may also be any conventional processor, etc.

[0062] The input device 302 may include a touchpad, a fingerprint acquisition sensor (for acquiring the fingerprint information and the direction information of the fingerprint of the user), a microphone, etc., and the output device 303 may include a display (such as an LCD), a speaker, etc.

[0063] The memory 304 may include a read-only memory and a random access memory, and provide instructions and data to the processor 301. A part of the memory 304 may also include a non-volatile random access memory.

[0064] In specific implementation, the processors 301, input devices 302, and output devices 303 described in the embodiments of the present application may execute the implementation manners described in the parallel charging method of the charging pile provided in the embodiments of the present application, or may also execute the implementation manners of the controller described in the embodiments of the present application, which will not be elaborated here.

[0065] In another embodiment of the present application, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program, and the computer program includes program instructions. When the program instructions are executed by a processor, all or part of the processes in the methods of the above embodiments are implemented. It can also be completed by instructing relevant hardware through the computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of the above method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal, and software distribution medium, etc.

[0066] The computer-readable storage medium can be the internal storage unit of the controller in any of the foregoing embodiments, such as the hard disk or memory of the controller. The computer-readable storage medium can also be an external storage device of the controller, such as a plug-in hard disk equipped on the controller, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. Further, the computer-readable storage medium can also include both the internal storage unit and the external storage device of the controller. The computer-readable storage medium is used to store the computer program and other programs and data required by the controller. The computer-readable storage medium can also be used to temporarily store the data that has been output or will be output.

[0067] Those of ordinary skill in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the components and steps of the examples have been generally described according to functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0068] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described controller and unit can refer to the corresponding processes in the foregoing method embodiments and will not be described herein again.

[0069] In several embodiments provided in this application, it should be understood that the disclosed controller and method can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of units is only a logical function division. In actual implementation, there can be other division methods. For example, multiple modules can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed coupling or direct coupling or communication connection to each other can be an indirect coupling or communication connection through some interfaces or units, or can also be an electrical, mechanical or other form of connection.

[0070] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiments of this application.

[0071] In addition, each functional module in various embodiments of this application can be integrated in a processing module, or each module can exist physically alone, or two or more modules can be integrated in one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules.

[0072] The above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed in this application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A method for parallel charging of charging piles, characterized in that, Applied to a charging pile parallel charging system, the charging pile parallel charging system includes a charger, a controller, and multiple parallel charging sockets. Each charging socket is used to connect to an input charging gun. The charger is connected in parallel with any one of the charging sockets. The multiple parallel charging sockets and the charger are both connected to the controller; The method includes: In response to receiving a user's charging request, lock the multiple parallel charging sockets, and parse the charging request to determine the charging mode selected by the user; Based on the charging mode, determine the first demand parameter of the target vehicle; If the parameter value corresponding to the first demand parameter is greater than the parameter threshold corresponding to the charger, perform a first operation; Wherein, the first operation includes: Based on the first demand parameter and the parameter threshold corresponding to the charger, determine the target input charging gun from each input charging gun; Control the charger and the target input charging gun to charge the target vehicle; and control the charging sockets not connected to the target input charging gun to be unlocked.

2. The method for parallel charging of charging piles according to claim 1, wherein, Based on the first demand parameter and the parameter threshold corresponding to the charger, determine the target input charging gun from each input charging gun; Controlling the charger and the target input charging gun to charge the target vehicle includes: Based on the target charging order of the charging gun, determine the first input charging gun from each input charging gun as the target input charging gun, and control the charger and the target input charging gun to charge the target vehicle; Determine a new first parameter threshold, which is obtained based on the parameter threshold of the target input charging gun and the parameter threshold corresponding to the charger; If the new first parameter threshold is less than the parameter value corresponding to the first demand parameter, then loop to execute: based on the target charging order of the charging gun, determine the second input charging gun from the currently uncharged input charging guns, and use the second input charging gun and the already charged input charging guns as the target input charging guns, and control the charger and the target input charging gun to charge the target vehicle, and determine a new first parameter threshold until the new first parameter threshold is not less than the parameter value corresponding to the first demand parameter.

3. The method for parallel charging of charging piles according to claim 2, characterized in that, Before determining the first input charging gun from each input charging gun based on the target charging order of the charging gun, it further includes: Determine the target charging order of the charging gun based on the label information of the charging gun, or determine the target charging order of the charging gun based on the cumulative working hours of the charging gun.

4. The method for parallel charging of charging piles according to claim 2, wherein It further includes: If all input charging guns have charged the target vehicle and the new first parameter threshold is less than the parameter value corresponding to the first demand parameter, then control the charger and the target input charging gun to charge the target vehicle; When it is detected that an idle input charging gun is connected to the gun holder, adjust the target charging order based on the idle input charging gun, and repeatedly execute the target charging order based on the charging gun, determine a second input charging gun from the currently uncharged input charging guns, and use the second input charging gun and the charged input charging guns as the target input charging guns, and control the charger and the target input charging guns to charge the target vehicle, and determine a new first parameter threshold until the new first parameter threshold is not less than the parameter value corresponding to the first demand parameter.

5. The method for parallel charging of charging piles according to claim 1, characterized in that, The charging modes include a first charging mode, a second charging mode, and a third charging mode; Determining the first demand parameter of the target vehicle based on the charging mode includes: If the charging mode is the first charging mode, determine that the first demand parameter of the target vehicle is a power parameter; If the charging mode is the second charging mode, determine that the first demand parameter of the target vehicle is a current parameter; If the charging mode is the third charging mode, determine a target power value based on the battery capacity and charging duration of the target vehicle, and determine the first demand parameter of the target vehicle based on the comparison result between the target power value and the demand power, where the demand power is the current power value of the target vehicle obtained by the charger.

6. The method for parallel charging of charging piles according to claim 1, characterized in that, It further includes: If the parameter value corresponding to the first demand parameter is less than or equal to the parameter threshold corresponding to the charger, control the charger to charge the target vehicle; and control all gun holders connected to the input charging guns to unlock.

7. The parallel charging method for a charging pile according to claim 1, characterized in that The charging pile parallel charging system further includes a power distribution device, the power distribution device includes a plurality of first relays; each first relay is connected to a gun holder or a charger; the second parameter threshold is the sum of the parameter threshold corresponding to the charger and the parameter threshold corresponding to the target input charging gun; After controlling the charger and the target input charging guns to charge the target vehicle, the method further includes: In response to the parameter value corresponding to the first demand parameter being less than or equal to the second parameter threshold, perform a second operation; the second operation includes: Based on the target charging order of the charging gun, determine a third input charging gun from each of the target input charging guns as the input charging gun to be disconnected, and control the first relay connected to the gun holder corresponding to the input charging gun to be disconnected; Determine a new second parameter threshold, where the new second parameter threshold is obtained based on the parameter threshold of the currently charged input charging guns and the parameter threshold corresponding to the charger; If the parameter value corresponding to the first demand parameter is less than or equal to the new second parameter threshold, repeatedly execute the target charging order based on the charging gun, determine a third input charging gun from each of the target input charging guns as the input charging gun to be disconnected, and control the first relay connected to the gun holder corresponding to the input charging gun to be disconnected, and determine a new second parameter threshold until the new second parameter threshold is less than the parameter value corresponding to the first demand parameter.

8. A parallel charging device for a charging pile, characterized in that, Set in a controller, the controller is included in a parallel charging system of charging piles. The parallel charging system of charging piles further includes a charger and a plurality of parallel charging gun holders. Each charging gun holder is used to connect with an input charging gun. The charger is connected in parallel with any one of the charging gun holders. The plurality of parallel charging gun holders and the charger are all connected to the controller; The device includes: A mode determination module, configured to lock the plurality of parallel charging gun holders in response to receiving a user's charging request, and parse the charging request to determine the charging mode selected by the user; A parameter determination module, configured to determine a first demand parameter of a target vehicle based on the charging mode; A charging module, configured to perform a first operation if the parameter value corresponding to the first demand parameter is greater than the parameter threshold corresponding to the charger; Wherein, the first operation includes: Determining a target input charging gun from each input charging gun based on the first demand parameter and the parameter threshold corresponding to the charger; Controlling the charger and the target input charging gun to charge the target vehicle; and controlling the charging gun holders not connected to the target input charging gun to be unlocked.

9. A parallel charging system for charging piles, comprising a charger, a controller, and a plurality of parallel charging sockets. Each charging socket is used to connect to an input charging gun. The charger is connected in parallel with any one of the charging sockets. The plurality of parallel charging sockets and the charger are both connected to the controller. The controller includes a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that, When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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