Charging host, charging equipment, equipment controller and power distribution control method

Abstract

This application relates to the field of charging system technology, specifically to a charging host, charging device, device controller, and power distribution control method. The charging host includes a power bus, a switch matrix, a switch controller, and a control module. Switches are connected to two corresponding power buses, and each switch in one switch matrix is ​​connected to two power buses belonging to different power units. Each switch controller is connected to a corresponding switch matrix. The control module sends corresponding switch control signals and bus charging enable signals to at least one switch controller. The switch controller performs interlock logic judgment on the switch control signals based on the bus charging enable signal; when the interlock logic is met, it controls the specified switch in the switch matrix to perform a switching operation. Through the above configuration, the charging host of this application increases the maximum output power of a single power unit and avoids abnormal series connection between power buses.

Description

Technical Field

[0001] This application relates to the field of charging system technology, and in particular to a charging host, charging equipment, equipment controller and power distribution control method. Background Technology

[0002] In electric vehicle charging systems, with the increasing power demands of electric vehicles and the continuous improvement in charging efficiency and power utilization, the power distribution section of the charging system has become particularly important. To achieve power superposition between power buses and improve charging efficiency, contactors are typically installed between the power buses in the power distribution section of the charging system. While this design can meet the power superposition requirement, it also introduces complexity to the circuit structure.

[0003] In actual power distribution, if the contactor is not properly closed when both power buses are in use, it may cause abnormal series connection between the two power buses. This will not only lead to a decrease in system efficiency, but may also cause serious safety accidents, such as overload, short circuit or even fire. Summary of the Invention

[0004] One objective of this application is to provide a charging host, charging device, device controller, and power distribution control method to solve the technical problem of abnormal series connection between power buses in the power distribution part of the charging system.

[0005] In a first aspect, embodiments of this application provide a charging host, comprising:

[0006] At least two power units, each power unit including at least two power buses;

[0007] Multiple switch matrices, each switch matrix including switches, each switch being connected to two corresponding power buses and capable of connecting the two corresponding power buses to each other when closed, wherein each switch in one of the switch matrices is connected to two power buses belonging to different power units;

[0008] Multiple switch controllers, each of which is connected to a corresponding switch matrix and is capable of controlling each switch in the corresponding switch matrix to perform a switching operation;

[0009] A control module is connected to each of the switch controllers. The control module is used to send corresponding switch control signals and bus charging enable signals to at least one of the switch controllers when performing a power distribution task. The switch control signals are used to instruct the specified switch to perform a switch operation. The bus charging enable signals include the working states of each power bus in the corresponding switch matrix that are set by the control module.

[0010] Each of the switch controllers is pre-configured with interlocking logic matching the corresponding switch matrix topology. The interlocking logic is used to prevent abnormal series connection between the power buses controlled by the corresponding switch matrix. The switch controller is used to receive the corresponding switch control signal and the bus charging enable signal, and to perform the interlocking logic judgment on the switch control signal according to the bus charging enable signal. When the switch control signal meets the interlocking logic, the controller controls the specified switch in the corresponding switch matrix to perform a switching operation according to the switch control signal.

[0011] Optionally, the control module includes:

[0012] At least two slave device controllers, each slave device controller being connected to a corresponding switch controller; and

[0013] A master device controller is connected to a corresponding switch controller. The switch controllers connected between the master device controller and each of the slave device controllers are different from each other. The master device controller and each of the slave device controllers are cascaded with each other. The master device controller is used to send the corresponding switch control signal and the bus charging enable signal to at least one of the switch controllers when performing a power distribution task.

[0014] Each of the slave device controllers is used to establish a communication connection between the corresponding switch controller and the master device controller.

[0015] Optionally, the switch controller includes:

[0016] A microprocessor unit, connected to the control module, is configured to receive the corresponding switch control signal and the bus charging enable signal, and to perform signal type conversion on the switch control signal and the bus charging enable signal respectively to obtain a switch control conversion signal and a bus charging enable conversion signal; and

[0017] A logic processing unit is connected to the microprocessor unit and each of the switches. The logic processing unit can obtain the state of each switch. The logic processing unit is pre-configured with the interlocking logic. The logic processing unit is used to perform the interlocking logic judgment on the switch control conversion signal according to the bus charging enable conversion signal, and when the switch control conversion signal meets the interlocking logic, it controls the specified switch to perform a switching operation according to the switch control conversion signal.

[0018] In a second aspect, embodiments of this application provide a power distribution control method applied to the charging host according to any one of the preceding claims, the method comprising:

[0019] In response to a power allocation command, at least one controlled switch controller associated with the power allocation command is identified, wherein the controlled switch controller is a switch controller participating in power allocation;

[0020] Generate the switch control signal and bus charging enable signal corresponding to each of the controlled switch controllers;

[0021] Each of the switch control signals and the bus charging enable signal is sent to the corresponding controlled switch controller, so that each controlled switch controller performs an interlock logic judgment on the switch control signal according to the bus charging enable signal, and when the switch control signal meets the interlock logic, controls the specified switch to perform a switching operation according to the switch control signal.

[0022] Optionally, generating the switch control signal and bus charging enable signal corresponding to each of the controlled switch controllers includes:

[0023] Obtain bus status information, which is used to represent the actual operating status of each power bus, including the running status and the idle status of the power bus.

[0024] Obtain the power allocation strategy that matches the power allocation command;

[0025] Based on the bus status information and the power allocation strategy, generate the switch control signal corresponding to each of the controlled switch controllers;

[0026] The bus status enable signal is generated for each of the controlled switch controllers based on the bus status information.

[0027] Optionally, the step of responding to a power allocation command and determining at least one controlled switch controller associated with the power allocation command includes:

[0028] The target power unit is determined according to the power allocation instruction, and the power units participating in the power allocation constitute the target power allocation matrix;

[0029] Obtain switch matrix association information and switch controller association information. The switch matrix association information includes the connection and control relationships between each power unit and each switch matrix. The switch controller association information includes the connection and control relationships between each switch matrix and each switch controller.

[0030] The switch matrix associated with the target power unit is determined based on the switch matrix association information;

[0031] The controlled switch controller is determined based on the switch matrix associated with the target power unit and the associated information of the switch controller.

[0032] Optionally, generating the switch control signal corresponding to each of the controlled switch controllers based on the bus status information and the power allocation strategy includes:

[0033] Each target switch matrix is ​​determined, wherein the target switch matrix is ​​the switch matrix controlled by the target switch controller, and the target switch controller is one of at least one of the controlled switch controllers;

[0034] Based on the bus status information, obtain the available bus information corresponding to each of the target switch matrices. The available bus information includes the power bus connected to the target switch matrix and in an idle state.

[0035] Based on the power allocation strategy and the available bus information, bus selection information corresponding to each target switch matrix is ​​obtained, wherein the bus selection information includes the power bus selected from the available bus information;

[0036] The switch control signal corresponding to each controlled switch controller is generated based on the bus selection information.

[0037] Optionally, obtaining the bus selection information corresponding to each target switch matrix based on the power allocation strategy and the information of each available bus includes:

[0038] Determine whether the available bus information includes a common power bus, wherein the common power bus is a power bus for at least two correspondingly connected switches belonging to different switch matrices;

[0039] When the common power bus exists in the available bus information, other power buses besides the common power bus are selected first, and corresponding bus selection information is generated.

[0040] Optionally, generating the bus status enable signal corresponding to each of the controlled switch controllers based on the bus status information includes:

[0041] Determine whether the switch control signals corresponding to each of the controlled switch controllers are used to simultaneously select the same common power bus;

[0042] If the switch control signals of each of the controlled switch controllers are used to simultaneously select the same common power bus, when generating the bus status enable signal corresponding to each of the controlled switch controllers, the working state of the common power bus of one of them is set to idle state, and the working state of the common power bus of the others is set to running state.

[0043] Optionally, the step of sending each of the switch control signals and the bus charging enable signal to the corresponding controlled switch controller further includes:

[0044] Receive feedback signals sent by each of the controlled switch controllers, the feedback signals being used to indicate the interlock logic judgment result of the switch control signal;

[0045] If any of the controlled switch controllers sends a feedback signal indicating that the switch control signal conforms to the interlock logic judgment, then the switch control signal sent this time is recorded as valid;

[0046] If any of the controlled switch controllers sends a feedback signal indicating that the switch control signal does not conform to the interlock logic judgment, then the switch control signal sent this time is recorded as invalid, and the switch control signal and the bus charging enable signal are regenerated and sent to the corresponding controlled switch controller. The regenerated switch control signal is not completely identical to any of the switch control signals already sent to the corresponding controlled switch controller, indicating that the specified switch controlling the switch operation is not completely the same.

[0047] Optionally, the power distribution control method further includes:

[0048] When the number of invalid switch control signals sent to one of the controlled switch controllers reaches a preset threshold, the operation of regenerating the corresponding switch control signal and the bus charging enable signal is stopped, and an anomaly flag is generated. The anomaly flag is used to indicate that there is an anomaly in the power distribution control of one of the controlled switch controllers.

[0049] In a third aspect, embodiments of this application provide a charging device, including:

[0050] Charging terminal; and

[0051] The charging host as described in any of the above claims is electrically connected to the charging terminal.

[0052] In a fourth aspect, embodiments of this application provide a device controller, including a memory and a processor, the memory being connected to the processor, the processor being configured to execute one or more computer programs stored in the memory, the processor causing the device controller to perform the method as described in any of the preceding claims when executing the one or more computer programs.

[0053] In a fifth aspect, embodiments of this application provide a computer-readable storage medium storing a computer program, the computer program including program instructions that, when executed by a processor, cause the processor to perform the method as described in any of the preceding claims.

[0054] The embodiments of this application can achieve the following technical effects: Multiple switch matrices and multiple switch controllers are connected between the various power units of the charging host, enabling the power units to utilize their respective idle power buses and to superimpose the power of each power unit, thereby increasing the maximum output power of a single power unit and meeting the high-power charging needs of some vehicles. Furthermore, due to the increased number of switch matrices and switch controllers, the power distribution system of the entire charging host becomes more complex, increasing the processing and control pressure on the control module. To ensure the safety of the charging system, corresponding interlocking logic is configured for each switch controller, ensuring that any abnormal switch control signal sent by the control module can prevent abnormal series connection of the power buses through the corresponding interlocking logic. Attached Figure Description

[0055] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0056] Figure 1 This is a schematic diagram of the system architecture of a charging device provided in an embodiment of this application;

[0057] Figure 2 This is a schematic diagram of a first structure of a charging host provided in an embodiment of this application;

[0058] Figure 3 This is a schematic diagram of a second structure of a charging host provided in an embodiment of this application;

[0059] Figure 4A schematic diagram of a third structure of a charging host provided in an embodiment of this application;

[0060] Figure 5 A schematic flowchart illustrating a power distribution control method provided in an embodiment of this application;

[0061] Figure 6 This is a schematic diagram of the structure of a control device provided in an embodiment of this application;

[0062] Figure 7 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application. Detailed Implementation

[0063] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0064] It should be noted that, unless there is a conflict, the various features in the embodiments of this application can be combined with each other, all of which are within the protection scope of this application. Furthermore, although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than the module division in the device or the order in the flowchart. Moreover, the terms "first," "second," and "third" used in this application do not limit the data or execution order, but only distinguish identical or similar items with essentially the same function and effect.

[0065] In the first aspect, please refer to Figure 1 This application provides a charging device 100, which is applied in a charging system. The charging device 100 includes a charging terminal 20 and a charging host 10. The charging terminal 20 is electrically connected to the charging host 10 and obtains charging power provided by the charging host 10.

[0066] The charging terminal 20 can be regarded as a charging pile and can be equipped with at least one charging gun for charging the target vehicle through the charging power provided by the charging host 10.

[0067] The charging host 10 is used to convert external power into charging power, and then distribute the charging power to the charging terminal 20. The charging power can be AC ​​or DC. The number of charging terminals 20 electrically connected to the charging host 10 is at least two. In other embodiments, the configuration can be made by the designer according to actual business needs, and there is no limitation here.

[0068] Please see Figure 2 In some embodiments, the charging host 10 includes at least two power units 11, multiple switch matrices 12, multiple switch controllers 13, and a control module 14.

[0069] Each power unit 11 includes at least two power buses ( Figure 2 The left power unit contains power buses BUS#1, BUS#2, and BUS#3; the right power unit contains power buses BUS#4, BUS#5, and BUS#6. Switch matrix 12 includes switches ( Figure 2 The first switch matrix contains switches K1_2, K1_3, and K2_3; the second switch matrix contains switches K2_4 and K3_6; and the third switch matrix contains switches K4_5, K4_6, and K5_6. Each switch is connected to two corresponding power buses and can interconnect the corresponding two power buses when closed. One of the switch matrices is 12 (e.g., Figure 2 Each switch in the second switch matrix is ​​connected to two power buses belonging to different power units 11, allowing power buses belonging to different power units 11 to establish a connection. Each switch controller 13 is connected to a corresponding switch matrix 12 and can control each switch in the corresponding switch matrix 12 to perform switching operations. The condition for closing the switch between two power buses is that one power bus must be an idle power bus and the other power bus must be a used power bus.

[0070] The control module 14 is connected to each switch controller 13. When performing a power distribution task, the control module 14 sends a corresponding switch control signal and a bus charging enable signal to at least one switch controller 13. The switch control signal is used to instruct the specified switch to perform a switch operation. The bus charging enable signal includes the working status of each power bus in the corresponding switch matrix 12 as set by the control module 14.

[0071] Each switch controller 13 is pre-configured with interlocking logic that matches the topology of the corresponding switch matrix 12. The interlocking logic is used to prevent abnormal series connection between the power buses controlled by the corresponding switch matrix 12. The switch controller 13 is used to receive the corresponding switch control signal and bus charging enable signal, and to perform interlocking logic judgment on the switch control signal according to the bus charging enable signal. When the switch control signal meets the interlocking logic, the switch controller 13 controls the specified switch in the corresponding switch matrix 12 to perform the switch operation according to the switch control signal.

[0072] The working principle of the charging host 10 in this embodiment is as follows: The charging host 10 realizes the conversion of external power supply to charging power supply and power distribution through multiple built-in power units 11 and switch matrix 12. Each power unit 11 includes at least two power buses, and the switches in the switch matrix 12 can connect the corresponding two power buses when closed, realizing power distribution and superposition.

[0073] The control module 14 is responsible for communication and coordination between various components, ensuring that the charging host 10 can operate efficiently and reliably when handling complex power distribution tasks. When the charging system needs to perform a power distribution task, the control module 14 first analyzes the current charging demand and calculates the optimal power distribution scheme, and then generates corresponding switch control signals and bus charging enable signals, which are sent to each switch controller 13.

[0074] Each switch controller 13 has built-in interlocking logic to prevent abnormal series connection between the controlled power buses. After receiving a signal, the switch controller 13 determines the validity of the signal according to the built-in interlocking logic, and then executes the corresponding switching operation to achieve power distribution.

[0075] The term "abnormal series connection" in this application refers to the accidental electrical connection between two or more circuit sections that should not be directly connected. For example, when two or more power buses are accidentally closed by a switch, they are connected in series in the same circuit, causing overload, short circuit, or other faults and safety accidents that affect the normal operation of the charging system.

[0076] Understandably, multiple switch matrices 12 and multiple switch controllers 13 connect the various power units 11 of the charging host 10, enabling the power units 11 to utilize their respective idle power buses and also allowing the power of each power unit 11 to be superimposed, thereby increasing the maximum output power of a single power unit 11 and meeting the high-power charging needs of some vehicles. Furthermore, due to the increased number of switch matrices 12 and switch controllers 13, the power distribution system of the entire charging host 10 becomes more complex, increasing the processing and control pressure on the control module 14. To ensure the safety of the charging system, corresponding interlocking logic is configured for each switch controller 13, ensuring that any abnormal switch control signal sent by the control module 14 can prevent abnormal series connection of the power buses through the corresponding interlocking logic.

[0077] In some embodiments, the switch may be a DC contactor, which feeds back the switch status to the control module 14 when performing a switching operation. In other embodiments, the number of power buses, the number of switches, and the topology of the power distribution circuit they form can also be... Figure 2 Different, but no restrictions are imposed here.

[0078] Please see Figure 3 In some embodiments, the control module 14 includes a master device controller 142 and at least two slave device controllers 141. Each slave device controller 141 is connected to a corresponding switch controller 13. The master device controller 142 is connected to a corresponding switch controller 13. The switch controllers 13 connected to the master device controller 142 and each slave device controller 141 are different from each other. The master device controller 142 and each slave device controller 141 are cascaded. The master device controller 142 is used to send corresponding switch control signals and bus charging enable signals to at least one switch controller 13 when performing power distribution tasks. Each slave device controller 141 is used to establish a communication connection between the corresponding switch controller 13 and the master device controller 142.

[0079] The control module 14 in this embodiment includes a master device controller 142 and at least two slave device controllers 141. Each slave device controller 141 is connected to its corresponding switch controller 13, while the master device controller 142 is connected to another different switch controller 13. The switch controllers 13 connected to the master device controller 142 and each slave device controller 141 are different. The master device controller 142 and the slave device controllers 141 are cascaded, and this structural design allows the master device controller 142 to send corresponding switch control signals and bus charging enable signals to at least one switch controller 13 when performing power distribution tasks.

[0080] When the charging system needs to allocate power, the master controller 142 first analyzes the current charging demand and calculates the optimal power allocation scheme. Then, the master controller 142 generates switch control signals and bus charging enable signals, and transmits these signals to the corresponding switch controllers 13. Since each slave controller 141 is connected to a corresponding switch controller 13, the master controller 142 can ensure that each switch controller 13 receives accurate control signals and charging enable signals through the communication connection established by the slave controllers 141.

[0081] In this process, each slave controller 141 is not only responsible for receiving signals from the master controller 142, but also for ensuring that these signals are transmitted accurately to its corresponding switch controller 13. This design allows the system to efficiently handle even complex power distribution tasks. Furthermore, the cascaded connection between the master controller 142 and the slave controllers 141 ensures the reliability and real-time performance of signal transmission, thereby improving the overall system response speed.

[0082] In some embodiments, each slave device controller 141 may also be responsible for monitoring some of the switch controllers 13, switch matrix 12, and power units 11, and feeding back the data to the master device controller 142. The slave device controller 141 may also possess certain computing capabilities, assisting the master device controller 142 in performing some calculations and decision-making tasks. By sharing some of the computing tasks with the master device controller 142, the slave device controller 141 can reduce the processing pressure on the master device controller 142 and improve the overall system's computing efficiency.

[0083] In some embodiments, at least two device controllers with the same functions and specifications are used, one of which is configured as the master device controller 142, and the remaining device controllers are configured as slave device controllers 141. Furthermore, the device controllers are cascaded together using a CAN (Controller Area Network) bus.

[0084] In other embodiments, the control module 14 may also be a device controller with higher processing power and more functional interfaces to meet the control of each switch controller 13.

[0085] Please see Figure 4 In some embodiments, any switch controller 13 includes a microprocessor unit 131 and a logic processing unit 132.

[0086] The microprocessor unit 131 is connected to the control module 14. The microprocessor unit 131 is used to receive the corresponding switch control signal and bus charging enable signal, and to convert the switch control signal and bus charging enable signal into signal types respectively, so as to obtain the switch control conversion signal and the bus charging enable conversion signal respectively.

[0087] The logic processing unit 132 is connected to the microprocessor unit 131 and each switch. The logic processing unit 132 can obtain the state of each switch. The logic processing unit 132 is pre-configured with interlocking logic. The logic processing unit 132 is used to perform interlocking logic judgment on the switch control conversion signal according to the bus charging enable conversion signal, and when the switch control conversion signal meets the interlocking logic, it controls the specified switch to perform the switching operation according to the switch control conversion signal.

[0088] Understandably, after receiving the switch control signal and bus charging enable signal from the control module 14, the microprocessor unit 131 will immediately parse and convert these signals to ensure that the signal type matches the internal processing logic. After the signal conversion is completed, the microprocessor unit 131 will transmit the switch control conversion signal and the bus charging enable conversion signal to the logic processing unit 132.

[0089] After receiving these switching signals, the logic processing unit 132 first acquires the current state information of each switch and incorporates this state information into the interlocking logic judgment. After acquiring the switch states, the logic processing unit 132 judges the received control signals according to the pre-configured interlocking logic.

[0090] Interlocking logic is used to ensure the safety of switch operations and prevent abnormal series connection between power buses. The logic processing unit 132 will only allow the corresponding switch operation when it determines that the switch control conversion signal and the bus charging enable conversion signal conform to the interlocking logic. Specifically, the logic processing unit 132 checks whether each switch is within its safe operating range to avoid incorrect connections caused by signal abnormalities or faults.

[0091] In some embodiments, after verification by the interlock logic, the logic processing unit 132 will send a switching signal to control the specified switch to perform a switching operation.

[0092] After the interlock logic judgment or switching operation is completed, the logic processing unit 132 updates the corresponding status information and feeds the result back to the microprocessor unit 131. The microprocessor unit 131 then sends this information to the control module 14 through the communication unit, so that the entire system can perform global monitoring and adjustment of the current power distribution status.

[0093] In some embodiments, the microprocessor unit 131 may be a microcontroller, an embedded processor, or the like. The logic processing unit 132 may be a field-programmable gate array, or the like.

[0094] In the second aspect, please refer to Figure 5 This application provides a power distribution control method, applied to the charging host in the above embodiments, specifically applied to the control module or main device controller of the charging host. The power distribution control method includes the following steps:

[0095] S51. In response to a power allocation command, determine at least one controlled switch controller associated with the power allocation command.

[0096] In this step, the power allocation command can be provided by the preceding stage of the control module (e.g., the terminal controller of the charging host) or the preceding stage of the system (e.g., the terminal controller of the charging terminal), to instruct the supply of a specified power of charging power to at least one charging terminal. The controlled switch controller is the switch controller that participates in the power allocation.

[0097] Specifically, after receiving the power allocation command, the control module analyzes the current system's operating status and charging demand based on the command, and determines the switch controllers and power units that need to participate in this power allocation task. In particular, for terminals with high-power charging demands, it is necessary to mobilize the coordinated work of multiple power units.

[0098] In determining the controlled switch controllers, the control module needs to read and analyze real-time system data, including but not limited to the current status of the charging terminals, the availability of each power unit, and the current load on the power bus. By analyzing this data, the control module can determine which switch controllers need to participate in this power allocation task and generate corresponding control signals for these controllers.

[0099] S52. Generate the switch control signals and bus charging enable signals corresponding to each controlled switch controller.

[0100] S53. Send each switch control signal and bus charging enable signal to the corresponding controlled switch controller.

[0101] Each controlled switch controller performs interlock logic judgment on the switch control signal based on the bus charging enable signal, and controls the designated switch to perform switching operation when the switch control signal meets the interlock logic.

[0102] Specifically, the target switch controller first verifies the received switch control signal based on the bus charging enable signal. During the verification process, the switch controller checks the validity of the signal and determines whether the switch operation conforms to the pre-configured interlocking logic. Only after the switch control signal passes the interlocking logic verification will the switch controller execute the corresponding switch operation, thereby achieving the specified power allocation.

[0103] Understandably, through the power distribution control method described above in this application embodiment, the control module of the charging host can efficiently respond to power distribution commands, accurately control switch operations, ensure that the system can operate safely and reliably when performing complex power distribution tasks, and cooperate with each controlled switch controller to complete interlock logic judgment to avoid abnormal series connection between power buses.

[0104] In some embodiments, step S52 includes:

[0105] S521. Obtain bus status information. The bus status information is used to indicate the actual working status of each power bus.

[0106] In this step, the actual operating status of the power bus includes the running status and the idle status. In some other embodiments, the bus status information also includes the power bus in a fault state.

[0107] In some embodiments, the charging host is equipped with sensors and a monitoring system to monitor the status information of each power bus in real time, including voltage, current, load status, and fault information. The data collected by the sensors is transmitted to the control module, which processes and analyzes the data to evaluate the current status of each power bus.

[0108] S522. Obtain the power allocation strategy that matches the power allocation command.

[0109] In this step, the power allocation strategy can be preset or generated in real time after receiving the power allocation command.

[0110] In some embodiments, the power allocation strategy is preset. During the system design phase, a series of power allocation strategies are generated based on historical data and experience, and stored in the control module or a storage medium accessible to the control module. During operation, the control module selects the most suitable strategy from the strategy library and executes it according to the specific power allocation instruction.

[0111] In other embodiments, the power allocation strategy is generated in response to a power allocation command. After receiving the power allocation command, the control module analyzes the current system status and charging demand in real time to generate a specific power allocation strategy.

[0112] In some embodiments, the power allocation strategy includes at least power unit scheduling, bus load balancing, and maximum output power control. In power unit scheduling, power units participating in power allocation are determined and selected and scheduled based on current charging demand and power unit availability. In bus load balancing, load balance among power buses is ensured, avoiding overload on any bus or idle conditions on other buses; load balance is achieved through dynamic adjustment of power allocation. In maximum output power control, the power output of multiple power units is coordinated to meet the high power demand of a single charging terminal.

[0113] S523. Generate the switch control signals corresponding to each controlled switch controller based on the bus status information and the preset power distribution strategy.

[0114] Understandably, in this step, the control module can identify idle power buses through bus status information, and then determine the available power buses associated with the switch matrix corresponding to each controlled switch controller. Furthermore, the control module generates switching control signals for each controlled switch controller based on the power allocation strategy and the available power buses.

[0115] S524. Generate bus status enable signals for each controlled switch controller based on the bus status information.

[0116] In this step, the control module determines the operating status of each power bus associated with the switch matrix corresponding to each controlled switch controller based on the bus status information, and generates a bus charging enable signal for each controlled switch controller.

[0117] Understandably, by acquiring bus status information, the system can understand the actual operating status of each power bus in real time, including its running, idle, and fault conditions. This enables the control module to make optimal decisions based on accurate real-time data when generating control signals, thereby improving the accuracy and reliability of power allocation.

[0118] Furthermore, by combining preset power allocation strategies, the control module can flexibly adjust and optimize the power allocation scheme according to the current system status and charging demand. This not only ensures load balance between each power unit and the bus, avoiding overload or resource waste, but also meets the high power demand of individual charging terminals, achieving efficient utilization of system resources.

[0119] In some embodiments, step S51 includes:

[0120] S511. Determine the target power unit according to the power allocation instruction.

[0121] In this step, the power units participating in power allocation constitute the target power allocation matrix.

[0122] Specifically, upon receiving a power allocation command, the control module first analyzes the power requirements outlined in the command and determines which power units in the system can meet those requirements. This step involves evaluating the current system status, including the load of each power unit, available power, and any ongoing charging tasks, to identify the most suitable power unit as the target power unit. In this way, the control module ensures that the selected power unit can participate in the power allocation task efficiently and reliably.

[0123] S512, Obtain the switch matrix association information and the switch controller association information.

[0124] In this step, the switch matrix association information includes the connection and control relationships between each power unit and each switch matrix, and the switch controller association information includes the connection and control relationships between each switch matrix and each switch controller.

[0125] After identifying the target power units, the control module needs to acquire detailed system topology information, including the association information of the switch matrices and the association information of the switch controllers. The switch matrix association information provides the connection and control relationships between each power unit and the switch matrices, i.e., which power unit uses which switch matrix for power distribution and conversion. The switch controller association information describes the connection and control relationships between each switch matrix and the switch controller, i.e., which switch matrix is ​​controlled by which switch controller. By acquiring and processing this information, the control module can construct the detailed topology of the system, providing a reference for subsequent control signal generation.

[0126] In some embodiments, the switch matrix association information and switch controller association information are recorded in the system's configuration file or database. The control module loads these configuration files during initialization or restart to obtain detailed association information.

[0127] S513. Determine the switching matrix of the associated target power unit based on the switching matrix association information.

[0128] In this step, after acquiring the switch matrix association information, the control module further analyzes this information to determine the specific switch matrix associated with the target power unit. This step ensures that the control module can accurately locate the switch matrix corresponding to each target power unit, thereby enabling operation using the correct switch matrix during power allocation and avoiding power allocation errors or system malfunctions caused by misoperation.

[0129] S514. Determine the controlled switch controller based on the switch matrix and switch controller association information of the associated target power unit.

[0130] In this step, the control module further determines the controlled switch controllers corresponding to these switch matrices based on the switch matrices and their associated information determined in the previous step. Each controlled switch controller is responsible for controlling a specific switch matrix; therefore, the control module needs to ensure that its control signals are accurately transmitted to the correct switch controller, thereby achieving effective control of the target power unit.

[0131] It is understood that the embodiments of this application achieve accurate identification of the controlled switch controller through the above steps, ensuring that no abnormalities occur during the complex power distribution process.

[0132] In some embodiments, step S523 includes:

[0133] S5231. Determine the switching matrix for each target.

[0134] In this step, the target switch matrix is ​​the switch matrix controlled by the target switch controller, and the target switch controller is one of at least one controlled switch controller;

[0135] S5232. Obtain the available bus information corresponding to each target switch matrix based on the bus status information.

[0136] In this step, the available bus information includes power buses that are connected to the target switch matrix and are in an idle state.

[0137] S5233. Obtain bus selection information corresponding to each target switch matrix based on the power allocation strategy and the information of each available bus.

[0138] In this step, the bus selection information includes specifying the power bus to be selected from the available bus information.

[0139] Understandably, the control module combines the power allocation strategy with available bus information to determine the specific power bus required for each target switch matrix. The power allocation strategy is pre-defined based on the overall system design and current charging demands, specifying how power should be allocated under different conditions. By applying these strategies to the current available bus information, the control module can select the most suitable power bus for allocation, ensuring that each switch matrix operates efficiently and stably when performing its tasks.

[0140] S5234. Generate the switch control signal corresponding to each controlled switch controller based on the selection information of each bus.

[0141] In some embodiments, step S5232 includes:

[0142] S52321. Determine whether the available bus information includes the common power bus.

[0143] In this step, the shared power bus refers to a power bus that connects at least two switches belonging to different switch matrices. Specifically, in a power distribution system, a shared power bus connects multiple switch matrices simultaneously, allowing different power units to share the shared power bus. The existence of the shared power bus allows different power units to cooperate to meet higher power demands or optimize the system's power distribution.

[0144] S52322. When a common power bus exists in the available bus information, other power buses besides the common power bus shall be selected first, and corresponding bus selection information shall be generated.

[0145] Understandably, since shared power buses typically involve the control of multiple switch matrices, prioritizing the use of non-shared power buses can reduce resource contention, lower system complexity, and improve the reliability and efficiency of power allocation. The control module will generate corresponding bus selection information based on this choice, ensuring that other power buses are used preferentially during power allocation, with shared power buses only used in applications requiring high power output.

[0146] In some embodiments, step S524 includes:

[0147] S5241. Determine whether the switch control signals corresponding to each controlled switch controller are used to simultaneously select the same common power bus.

[0148] S5242. If the switching control signals of each controlled switch controller are used to simultaneously select the same common power bus, when generating the bus status enable signal corresponding to each controlled switch controller, the working state of the common power bus of one of them is set to idle state, and the working state of the common power bus of the others is set to running state.

[0149] In this step, the control module can determine the selection priority of each controlled switch controller for the common power bus according to the power allocation strategy, and set the common power bus working state of the bus state enable signal corresponding to one of the controlled switch controllers to the idle state according to the selection priority, and set the common power bus working state of the bus state enable signals corresponding to the other controlled switch controllers to the running state.

[0150] Understandably, when different controlled switch controllers simultaneously activate the same common power bus, the bus charging enable signals are independent for each controller, and the common power bus is idle. Therefore, when different controllers perform interlocking logic checks on their switch controller signals, the connection between the common power bus and other operating power buses via switches conforms to the corresponding interlocking logic. This causes different controllers to simultaneously connect the common power bus to other operating power buses, resulting in abnormal series connection of other operating power buses controlled by different controllers through the common power bus.

[0151] by Figure 2Taking the power distribution circuit topology as an example, the common power bus BUS#2 of the left power unit is in an idle state, while the power bus BUS#1 of the left power unit and the power bus BUS#4 of the right power unit are in an operating state. At this time, switches K1_2 and K2_4 are in an open state. The first and second switch controllers are both controlled switch controllers for this power distribution task. The switch control signal received by the first switch controller is used to indicate the closing of switch K1_2, and the switch control signal received by the second switch controller is used to indicate the closing of switch K2_4. The switch controllers are independent of each other. Taking the first switch controller as an example, if BUS#2 is in an idle state in the received bus charging enable signal, the operation of closing switch K1_2 in the received switch control signal conforms to the corresponding interlocking logic. Similarly, taking the second switch controller as an example, if BUS#2 is also in an idle state in the received bus charging enable signal, the operation of closing switch K2_4 in the received switch control signal also conforms to the corresponding interlocking logic. Therefore, when the two controlled switch controllers control the corresponding switches to perform switching operations, the closing of switches K1_2 and K2_4 will cause power buses BUS#1 and BUS#4 to be abnormally connected in series through BUS#2, which will lead to a safety accident.

[0152] Therefore, in this embodiment, when generating the bus state enable signal corresponding to each controlled switch controller, the operating state of the common power bus of one of them is set to idle, while the operating state of the common power buses of the others is set to running, thereby ensuring the safety of the charging system. Furthermore, the control module can also control multiple controlled switch controllers simultaneously within a single power distribution task to improve power distribution control efficiency and thus increase charging efficiency.

[0153] For example, the control module sets the common power bus BUS#2, which is enabled by the bus status signal corresponding to the first switch controller, to the idle state, and sets the common power bus BUS#2, which is enabled by the bus status signal corresponding to the second switch controller, to the running state. Then, the switch control signal received by the first switch controller will be determined by the corresponding interlock logic, causing switch K1_2 to close, connecting BUS#1 and BUS#2 for power superposition output. However, the switch control signal received by the second switch controller will not pass the corresponding interlock logic, keeping switch K2_4 open, and BUS#2 and BUS#4 disconnected to ensure the safety of the charging system.

[0154] In some embodiments, after step S53, the method further includes:

[0155] S54. Receive feedback signals sent by each controlled switch controller.

[0156] In this step, the feedback signal is used to indicate the interlock logic judgment result of the switch control signal.

[0157] Specifically, after receiving a switch control signal from the control system, each controlled switch controller will judge the signal according to a predetermined interlocking logic and send the judgment result back to the control system in the form of a feedback signal. This feedback signal can be a status signal indicating whether the signal is valid or invalid.

[0158] S55. If any feedback signal sent by a controlled switch controller indicates that the switch control signal meets the interlock logic judgment, then record that the switch control signal sent this time is valid.

[0159] In this step, the control system analyzes and records all received feedback signals to confirm which switch control signals are valid signals conforming to the interlocking logic. The recording of valid signals includes not only the signal itself but also the timestamp of the signal transmission, the controller of the controlled switch to which it was sent, and other relevant operating parameters, for subsequent operation and diagnostics.

[0160] S56. If any feedback signal sent by any controlled switch controller indicates that the switch control signal does not meet the interlock logic judgment, then record that the switch control signal sent this time is invalid, regenerate and send the switch control signal and bus charging enable signal to the corresponding controlled switch controller. The regenerated switch control signal is not completely the same as any switch control signal that has been sent to the corresponding controlled switch controller, indicating that the specified switch that controls the switch operation is not completely the same.

[0161] Specifically, the regenerated switch control signal should avoid the control content in the previous signal that caused the interlock logic to fail, so as to ensure that the regenerated switch control signal can pass the interlock logic judgment while satisfying the power allocation strategy.

[0162] It is understood that, through the above steps, the embodiments of this application can ensure that the system can respond and adjust in a timely manner when encountering abnormal situations, thus ensuring the reliability and safety of the switch operation.

[0163] In some embodiments, the power distribution control method further includes: when the number of invalid switching control signals sent to one of the controlled switch controllers reaches a preset threshold, stopping the operation of regenerating the corresponding switching control signal and bus charging enable signal, and generating an anomaly flag. The anomaly flag is used to indicate that an anomaly has occurred in the power distribution control of one of the controlled switch controllers.

[0164] Specifically, when the control system detects that a controlled switch controller repeatedly sends switch control signals that do not conform to the interlocking logic within a preset number of attempts, the system assumes that the controlled switch controller may have a hardware fault, communication problem, or other abnormality. Therefore, to avoid continuously sending invalid signals that could waste system resources or lead to potentially larger failures, the system will stop sending new switch control signals and bus charging enable signals to that controlled switch controller.

[0165] In addition, the control system will generate an anomaly flag to indicate an anomaly in the power distribution control of one of the controlled switch controllers. In some embodiments, the anomaly flag should not only be a simple error message, but should also include detailed diagnostic information, such as the time of the anomaly, the specific signal content of the anomaly, the number of attempts, and the error code. This information will be recorded in the system log and can be viewed and analyzed by operators through the control system interface.

[0166] In some embodiments, after generating an anomaly flag, the control module can trigger a series of emergency response measures. For example, it can notify operators or the management system to manually inspect and intervene in the malfunctioning hardware.

[0167] It should be noted that in the above embodiments, there is no necessarily a certain order between the steps. Those skilled in the art can understand from the description of the embodiments of this application that the above steps may have different execution orders in different embodiments, that is, they may be executed in parallel or in turn, etc.

[0168] As another aspect of the embodiments of this application, this application provides a control device. The control device can be a software module, which includes several instructions stored in a memory. A processor can access the memory, invoke the instructions, and execute them to complete the power distribution control method described in the various embodiments above.

[0169] In some embodiments, the control device can also be constructed from hardware components. For example, the control device can be constructed from one or more chips, which can work in coordination to complete the power distribution control method described in the various embodiments above. As another example, the control device can also be constructed from various logic devices, such as general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), microcontrollers, ARM (Acorn RISC Machine) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination of these components.

[0170] Please see Figure 6The control device 600 in this application embodiment includes a first identification module 601, a generation module 602, and a sending module 603.

[0171] The first identification module 601 is used to respond to the power allocation command and identify at least one controlled switch controller associated with the power allocation command. The controlled switch controller is the switch controller participating in the power allocation. The generation module 602 is used to generate the switch control signal and bus charging enable signal corresponding to each controlled switch controller. The sending module 603 is used to send each switch control signal and bus charging enable signal to the corresponding controlled switch controller, so that each controlled switch controller performs interlocking logic judgment on the switch control signal according to the bus charging enable signal, and when the switch control signal meets the interlocking logic, controls the specified switch to perform a switching operation according to the switch control signal.

[0172] The control device 600 of this application embodiment can efficiently respond to power distribution commands, accurately control switch operations, ensure that the system can operate safely and reliably when performing complex power distribution tasks, and cooperate with each controlled switch controller to complete interlock logic judgment to avoid abnormal series connection between power buses.

[0173] In some embodiments, the generation module 602 is specifically used to: acquire bus status information, which represents the actual operating status of each power bus, including running status and idle status; acquire a power allocation strategy that matches the power allocation command; generate switch control signals corresponding to each controlled switch controller based on the bus status information and the power allocation strategy; and generate bus status enable signals corresponding to each controlled switch controller based on the bus status information.

[0174] In some embodiments, the first identification module 601 is specifically configured to: determine the target power unit according to the power allocation instruction, wherein the power units participating in the power allocation constitute the target power allocation matrix; acquire switch matrix association information and switch controller association information, wherein the switch matrix association information includes the connection and control relationships between each power unit and each switch matrix, and the switch controller association information includes the connection and control relationships between each switch matrix and each switch controller; determine the switch matrix associated with the target power unit according to the switch matrix association information; and determine the controlled switch controller according to the switch matrix associated with the target power unit and the switch controller association information.

[0175] In some embodiments, the generation module 602 is further specifically configured to: determine each target switch matrix, wherein the target switch matrix is ​​a switch matrix controlled by a target switch controller, and the target switch controller is one of at least one controlled switch controller; obtain available bus information corresponding to each target switch matrix based on bus status information, wherein the available bus information includes power buses connected to the target switch matrix and in an idle state; obtain bus selection information corresponding to each target switch matrix based on a power allocation strategy and each available bus information, wherein the bus selection information includes power buses selected from the available bus information; and generate switch control signals corresponding to each controlled switch controller based on each bus selection information.

[0176] In some embodiments, the generation module 602 is further configured to: determine whether the available bus information includes a common power bus, wherein the common power bus is a power bus in which at least two correspondingly connected switches belong to different switch matrices; when a common power bus exists in the available bus information, other power buses besides the common power bus are selected first, and corresponding bus selection information is generated.

[0177] In some embodiments, the generation module 602 is further specifically used to: determine whether the switch control signals corresponding to each controlled switch controller are used to simultaneously select the same common power bus; if the switch control signals of each controlled switch controller are used to simultaneously select the same common power bus, when generating the bus state enable signal corresponding to each controlled switch controller, the working state of the common power bus of one of them is set to the idle state, and the working state of the common power bus of the others is set to the running state.

[0178] In some embodiments, the control device 600 further includes a receiving module, a second identification module, a first execution module, and a second execution module. The receiving module receives feedback signals sent by each controlled switch controller, the feedback signals representing the interlock logic judgment result of the switch control signals. The second identification module determines whether the feedback signal sent by the controlled switch controller indicates that the switch control signal conforms to the interlock logic judgment. The first execution module records the sent switch control signal as valid if any feedback signal sent by a controlled switch controller indicates that the switch control signal conforms to the interlock logic judgment. The second execution module records the sent switch control signal as invalid if any feedback signal sent by a controlled switch controller indicates that the switch control signal does not conform to the interlock logic judgment, regenerates and sends the switch control signal and bus charging enable signal to the corresponding controlled switch controller, wherein the regenerated switch control signal is not completely identical to any switch control signal already sent to the corresponding controlled switch controller, indicating that the specified switch controlling the switch operation is not entirely the same.

[0179] In some embodiments, the control device 600 further includes a judgment module and a third execution module. The judgment module is used to determine whether the number of invalid switch control signals sent to each controlled switch controller has reached a preset threshold. The third execution module is used to stop the operation of regenerating the corresponding switch control signal and bus charging enable signal when the number of invalid switch control signals sent to one of the controlled switch controllers reaches the preset threshold, and to generate an abnormality flag, which indicates that an abnormality has occurred in the power distribution control of one of the controlled switch controllers.

[0180] It should be noted that the control device 600 described above can execute the power distribution control method provided in the embodiments of this application, and has the corresponding functional modules and beneficial effects of the method. Technical details not described in detail in the embodiments of the control device 600 can be found in the power distribution control method provided in the embodiments of this application.

[0181] Please see Figure 6 , Figure 6 This is a schematic diagram of the structure of a computer device 700 provided in an embodiment of this application. The computer device 700 can be a device controller applied to a charging host. The computer device 700 includes one or more processors 701 and a memory 702. The memory 702 is connected to one or more processors 701, for example, via a bus.

[0182] Processor 701 is configured to support the computer device 700 in performing the corresponding functions in the methods described in the above method embodiments. Processor 701 may be a central processing unit (CPU), a network processor (NP), a hardware chip, or any combination thereof. The aforementioned hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The aforementioned PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof.

[0183] Memory 702 is used to store program code, etc. Memory 702 may include volatile memory (VM), such as random access memory (RAM); memory 702 may also include non-volatile memory (NVM), such as read-only memory (ROM), flash memory, hard disk drive (HDD), or solid-state drive (SSD); memory 702 may also include combinations of the above types of memory 702.

[0184] The memory 702 can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as the program instructions / modules corresponding to the power distribution control method in the embodiments of this application. The processor 701 executes various functional applications and data processing of the power distribution control method and control device by running the non-volatile software programs, instructions, and modules stored in the memory 702, that is, it realizes the functions of each module or unit of the power distribution control method and control device provided in the above method embodiments.

[0185] The memory 702 may include a program storage area and a data storage area, wherein the program storage area may store the operating system and applications required for at least one function. The data storage area may store data created based on the use of the control device. In some embodiments, the memory 702 may optionally include memory remotely located relative to the processor 701, and this remote memory may be connected to the control device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0186] The one or more modules are stored in the memory 702. When executed by the one or more processors 701, they execute the power distribution control method in any of the above method embodiments. For example, they execute the method steps described in the above method embodiments to realize the functions of the modules described in the above device embodiments.

[0187] This application also provides a computer-readable storage medium storing a computer program, the computer program including program instructions, which, when executed by a computer, cause the computer to perform the method described in the foregoing embodiments.

[0188] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc.

[0189] The above disclosure is only a preferred embodiment of the present application, and certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A charging host, characterized in that, include: At least two power units, each power unit including at least two power buses; Multiple switch matrices, each switch matrix including switches, each switch being connected to two corresponding power buses and capable of connecting the two corresponding power buses to each other when closed, wherein each switch in one of the switch matrices is connected to two power buses belonging to different power units; Multiple switch controllers, each of which is connected to a corresponding switch matrix and is capable of controlling each switch in the corresponding switch matrix to perform a switching operation; A control module is connected to each of the switch controllers. The control module is used to send corresponding switch control signals and bus charging enable signals to at least one of the switch controllers when performing a power distribution task. The switch control signals are used to instruct the specified switch to perform a switch operation. The bus charging enable signals include the working states of each power bus in the corresponding switch matrix that are set by the control module. Each of the switch controllers is pre-configured with interlocking logic matching the corresponding switch matrix topology. The interlocking logic is used to prevent abnormal series connection between the power buses controlled by the corresponding switch matrix. The switch controller is used to receive the corresponding switch control signal and the bus charging enable signal, and to perform the interlocking logic judgment on the switch control signal according to the bus charging enable signal. When the switch control signal meets the interlocking logic, the controller controls the specified switch in the corresponding switch matrix to perform a switching operation according to the switch control signal.

2. The charging host according to claim 1, characterized in that, The control module includes: At least two slave device controllers, each slave device controller being connected to a corresponding switch controller; and A master device controller is connected to a corresponding switch controller. The switch controllers connected between the master device controller and each of the slave device controllers are different from each other. The master device controller and each of the slave device controllers are cascaded with each other. The master device controller is used to send the corresponding switch control signal and the bus charging enable signal to at least one of the switch controllers when performing a power distribution task. Each of the slave device controllers is used to establish a communication connection between the corresponding switch controller and the master device controller.

3. The charging host according to claim 1, characterized in that, The switch controller includes: A microprocessor unit, connected to the control module, is configured to receive the corresponding switch control signal and the bus charging enable signal, and to perform signal type conversion on the switch control signal and the bus charging enable signal respectively to obtain a switch control conversion signal and a bus charging enable conversion signal; and A logic processing unit is connected to the microprocessor unit and each of the switches. The logic processing unit can obtain the state of each switch. The logic processing unit is pre-configured with the interlocking logic. The logic processing unit is used to perform the interlocking logic judgment on the switch control conversion signal according to the bus charging enable conversion signal, and when the switch control conversion signal meets the interlocking logic, it controls the specified switch to perform a switching operation according to the switch control conversion signal.

4. A power distribution control method, characterized in that, The method, applied to the charging host according to any one of claims 1-3, comprises: In response to a power allocation command, at least one controlled switch controller associated with the power allocation command is identified, wherein the controlled switch controller is a switch controller participating in power allocation; Generate the switch control signal and bus charging enable signal corresponding to each of the controlled switch controllers; Each of the switch control signals and the bus charging enable signal is sent to the corresponding controlled switch controller, so that each controlled switch controller performs an interlock logic judgment on the switch control signal according to the bus charging enable signal, and when the switch control signal meets the interlock logic, controls the specified switch to perform a switching operation according to the switch control signal.

5. The power distribution control method according to claim 4, characterized in that, The generation of the switch control signal and bus charging enable signal corresponding to each of the controlled switch controllers includes: Obtain bus status information, which is used to represent the actual operating status of each power bus, including the running status and the idle status of the power bus. Obtain the power allocation strategy that matches the power allocation command; Based on the bus status information and the power allocation strategy, generate the switch control signal corresponding to each of the controlled switch controllers; The bus status enable signal corresponding to each of the controlled switch controllers is generated based on the bus status information.

6. The power distribution control method according to claim 4, characterized in that, The response to the power allocation command, determining at least one controlled switch controller associated with the power allocation command, includes: The target power unit is determined according to the power allocation instruction, and the power units participating in the power allocation constitute the target power allocation matrix; Obtain switch matrix association information and switch controller association information. The switch matrix association information includes the connection and control relationships between each power unit and each switch matrix. The switch controller association information includes the connection and control relationships between each switch matrix and each switch controller. The switch matrix associated with the target power unit is determined based on the switch matrix association information; The controlled switch controller is determined based on the switch matrix associated with the target power unit and the associated information of the switch controller.

7. The power distribution control method according to claim 5, characterized in that, The step of generating the switch control signal corresponding to each controlled switch controller based on the bus status information and the power allocation strategy includes: Each target switch matrix is ​​determined, wherein the target switch matrix is ​​the switch matrix controlled by the target switch controller, and the target switch controller is one of at least one of the controlled switch controllers; Based on the bus status information, obtain the available bus information corresponding to each of the target switch matrices. The available bus information includes the power bus connected to the target switch matrix and in an idle state. Based on the power allocation strategy and the available bus information, bus selection information corresponding to each target switch matrix is ​​obtained, wherein the bus selection information includes the power bus selected from the available bus information; The switch control signal corresponding to each controlled switch controller is generated based on the bus selection information.

8. The power distribution control method according to claim 7, characterized in that, The step of obtaining the bus selection information corresponding to each target switch matrix based on the power allocation strategy and the information of each available bus includes: Determine whether the available bus information includes a common power bus, wherein the common power bus is a power bus for at least two correspondingly connected switches belonging to different switch matrices; When the common power bus exists in the available bus information, other power buses besides the common power bus are selected first, and corresponding bus selection information is generated.

9. The power distribution control method according to claim 8, characterized in that, The step of generating the bus status enable signal corresponding to each of the controlled switch controllers based on the bus status information includes: Determine whether the switch control signals corresponding to each of the controlled switch controllers are used to simultaneously select the same common power bus; If the switch control signals of each of the controlled switch controllers are used to simultaneously select the same common power bus, when generating the bus status enable signal corresponding to each of the controlled switch controllers, the working state of the common power bus of one of them is set to idle state, and the working state of the common power bus of the others is set to running state.

10. The power distribution control method according to claim 4, characterized in that, The step of sending each of the switch control signals and the bus charging enable signal to the corresponding controlled switch controller further includes: Receive feedback signals sent by each of the controlled switch controllers, the feedback signals being used to indicate the interlock logic judgment result of the switch control signal; If any of the controlled switch controllers sends a feedback signal indicating that the switch control signal conforms to the interlock logic judgment, then the switch control signal sent this time is recorded as valid; If any of the controlled switch controllers sends a feedback signal indicating that the switch control signal does not conform to the interlock logic judgment, then the switch control signal sent this time is recorded as invalid, and the switch control signal and the bus charging enable signal are regenerated and sent to the corresponding controlled switch controller. The regenerated switch control signal is not completely identical to any of the switch control signals already sent to the corresponding controlled switch controller, indicating that the specified switch controlling the switch operation is not completely the same.

11. The power distribution control method according to claim 10, characterized in that, Also includes: When the number of invalid switch control signals sent to one of the controlled switch controllers reaches a preset threshold, the operation of regenerating the corresponding switch control signal and the bus charging enable signal is stopped, and an anomaly flag is generated. The anomaly flag is used to indicate that there is an anomaly in the power distribution control of one of the controlled switch controllers.

12. A charging device, characterized in that, include: Charging terminal; as well as The charging host as described in any one of claims 1-3, wherein the charging host is electrically connected to the charging terminal.

13. A device controller, characterized in that, The device includes a memory and a processor, the memory being connected to the processor, the processor being configured to execute one or more computer programs stored in the memory, and the processor, when executing the one or more computer programs, causing the device controller to implement the method as described in any one of claims 4-11.

14. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, the computer program including program instructions that, when executed by a processor, cause the processor to perform the method as described in any one of claims 4-11.

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