Charging pile charging control method and device, equipment and storage medium
By acquiring the battery status and charging requirements of the target vehicle, determining the available charging modules and adjusting the power distribution strategy, the shortcomings of existing vehicle charging equipment in terms of charging efficiency and reliability are solved, and a more efficient and reliable charging process is achieved.
Patent Information
- Application Number
- CN202411839913.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-02-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing vehicle charging equipment has shortcomings in charging efficiency and charging reliability, and it is difficult to adapt to users' diverse charging needs.
By obtaining the current battery capacity, target battery capacity and maximum charging current of the target vehicle, multiple target available charging modules corresponding to the target vehicle are determined, and the target power distribution strategy is adjusted to control charging based on the preset power distribution strategy selection rules.
It improves the charging reliability and charging efficiency of the vehicle, and can better adapt to the charging needs of different vehicles.
Smart Images
Figure CN119489705A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of charging control technology, and in particular to a charging control method, device, equipment and storage medium for a charging stack. Background Art
[0002] The market demand of the vehicle industry continues to expand with the advancement of technology and policy support, making important contributions to green travel and sustainable development. However, existing vehicle charging equipment still has certain limitations in charging vehicles. This is mainly reflected in the low charging efficiency and charging reliability.
[0003] Therefore, existing vehicle charging equipment is difficult to adapt to the diverse charging needs of users. In order to improve the user's charging experience, a charging method that can improve charging efficiency and charging reliability is urgently needed. Summary of the invention
[0004] The embodiments of the present application provide a charging control method, device, equipment and storage medium for a charging stack, which can improve the charging reliability and charging efficiency of a charging vehicle.
[0005] In a first aspect, an embodiment of the present application provides a charging control method for a charging stack, the method comprising:
[0006] Obtaining the current battery power, target battery capacity, and maximum charging current of a target vehicle, wherein the target vehicle is a vehicle currently connected to a charging pile through a target charging gun;
[0007] Determine a plurality of target available charging modules corresponding to the target vehicle from a plurality of available charging modules in the charging stack according to the maximum charging current and the output current of a single charging module;
[0008] Based on a preset power allocation strategy selection rule, determining a target power allocation strategy from a plurality of preset candidate power allocation strategies according to the current battery power and the target battery capacity;
[0009] Based on the target power allocation strategy, controlling the plurality of target available charging modules to charge the target vehicle;
[0010] During the charging process of the target vehicle, obtaining the real-time battery power of the target vehicle and the charging interface current of the target charging gun according to a preset time interval;
[0011] The target power allocation strategy is adjusted according to the real-time battery power and the charging interface current, and the target vehicle is charged using the adjusted target power allocation strategy.
[0012] In a second aspect, an embodiment of the present application further provides a charging control device for a charging stack, which includes:
[0013] A first acquisition unit, used to acquire the current battery power, target battery capacity and maximum charging current of a target vehicle, wherein the target vehicle is a vehicle currently connected to the charging pile through a target charging gun;
[0014] A first determining unit, configured to determine a plurality of target available charging modules corresponding to the target vehicle from a plurality of available charging modules in the charging stack according to the maximum charging current and an output current of a single charging module;
[0015] A second determining unit, configured to determine a target power allocation strategy from a plurality of preset candidate power allocation strategies based on a preset power allocation strategy selection rule and according to the current battery power and the target battery capacity;
[0016] A control unit, configured to control the plurality of target available charging modules to charge the target vehicle based on the target power allocation strategy;
[0017] A second acquisition unit is used to acquire the real-time battery power of the target vehicle and the charging interface current of the target charging gun according to a preset time interval during the charging process of the target vehicle;
[0018] The adjustment unit is used to adjust the target power allocation strategy according to the real-time battery power and the charging interface current, and charge the target vehicle through the adjusted target power allocation strategy.
[0019] In a third aspect, an embodiment of the present application further provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above method when executing the computer program.
[0020] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program implements the above method when executed by a processor.
[0021] The embodiment of the present application provides a charging control method, device, equipment and storage medium for a charging stack. The method includes: obtaining the current battery power, target battery capacity and maximum charging current of a target vehicle, wherein the target vehicle is a vehicle currently connected to the charging stack through a target charging gun; determining multiple target available charging modules corresponding to the target vehicle from multiple available charging modules in the charging stack according to the maximum charging current and the output current of a single charging module; determining a target power allocation strategy from multiple preset candidate power allocation strategies based on the current battery power and the target battery capacity based on a preset power allocation strategy selection rule; based on the target power allocation strategy, controlling multiple target available charging modules to charge the target vehicle; during the charging process of the target vehicle, obtaining the real-time battery power of the target vehicle and the charging interface current of the target charging gun according to a preset time interval; adjusting the target power allocation strategy according to the real-time battery power and the charging interface current, and charging the target vehicle through the adjusted target power allocation strategy. In the embodiment of the present application, based on the determination of multiple target available charging modules corresponding to the target vehicle according to the maximum charging current and the output current of a single charging module, based on the preset power allocation strategy selection rules, the target power allocation strategy is determined according to the current battery power and the target battery capacity, and the target vehicle is charged according to the target power allocation strategy. During the charging process, the target power allocation strategy is adjusted according to the real-time battery power and the charging interface current, and the target vehicle is charged according to the adjusted target power allocation strategy, thereby improving the charging reliability and charging efficiency of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0023] Figure 1 A schematic diagram of an application scenario of the charging control method of the charging stack provided in an embodiment of the present application;
[0024] Figure 2 A schematic diagram of a flow chart of a charging control method of a charging stack provided in an embodiment of the present application;
[0025] Figure 3 A schematic diagram of a sub-flow chart of the charging control method of the charging stack provided in an embodiment of the present application;
[0026] Figure 4 A schematic block diagram of a charging control device for a charging stack provided in an embodiment of the present application; and
[0027] Figure 5 A schematic block diagram of a computer device provided in an embodiment of the present application. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0029] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.
[0030] It should also be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in this application specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.
[0031] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.
[0032] Embodiments of the present application provide a charging control method, device, equipment and storage medium for a charging stack.
[0033] The executor of the charging control method of the charging stack may be the charging control device of the charging stack provided in the embodiment of the present application, or a computer device integrating the charging control device of the charging stack, wherein the charging control device of the charging stack may be implemented in hardware or software, and the computer device may be a terminal or a server. The embodiment of the present application takes the computer device as a server as an example to explain in detail the charging control method of the charging stack provided in the present application.
[0034] See also Figure 1 , Figure 1 A schematic diagram of an application scenario of the charging control method of the charging stack provided in an embodiment of the present application. In one embodiment, the application scenario includes:
[0035] (1) Resource allocation controller. The resource allocation controller is a controller used to control the charging gun in the charging stack to charge the target vehicle. The resource allocation controller is connected to the target vehicle through a communication protocol. The current battery power, target battery capacity and maximum charging current of the target vehicle can be obtained through the communication connection, and multiple target available charging modules can be controlled to charge the target vehicle according to the target power allocation strategy. The resource allocation controller is also connected to the charging gun controller to obtain the charging interface current of the target charging gun. During the charging process of the target vehicle, the resource allocation controller obtains the real-time battery power and charging interface current of the target vehicle according to the communication connection, and adjusts the target power allocation strategy according to the obtained real-time battery power and charging interface current.
[0036] (2) Charging gun controller. The charging gun controller is Figure 1 The controller controls the target charging gun to charge the target vehicle. The charging gun controller is in communication connection with the resource allocation controller and is used to send the charging interface current of the charging gun to the resource allocation controller.
[0037] (3) Target vehicle. The target vehicle is the vehicle currently connected to the charging pile through the target charging gun. It communicates with the resource allocation controller through a communication protocol to send the current battery power, target battery capacity, maximum charging current and real-time battery power during charging to the resource control server.
[0038] Figure 1 The working process of the charging control server in the system is as follows: the charging control server obtains the current battery power, target battery capacity and maximum charging current of the target vehicle by communicating with the target vehicle; determines multiple target available charging modules corresponding to the target vehicle from multiple available charging modules according to the obtained maximum charging current and the output current of a single charging module in the charging stack; determines the target power allocation strategy from multiple preset candidate power allocation strategies according to the current battery power and the target battery capacity based on the preset power allocation strategy selection rule; the resource allocation controller controls multiple target available charging modules to charge the target vehicle according to the target power allocation strategy; since the resource allocation controller is communicated with the charging gun controller, the real-time battery power of the target vehicle and the charging interface current of the target charging gun are obtained according to the preset time interval during the charging process of the target vehicle; finally, the target power allocation strategy is adjusted according to the real-time battery power and the charging interface current, and the target vehicle is charged according to the adjusted target power allocation strategy, thereby improving the charging reliability and charging efficiency of the vehicle.
[0039] It should be noted that the application scenario of the charging control method of the above-mentioned charging stack is only used to illustrate the technical solution of the present application, and is not used to limit the technical solution of the present application. The above-mentioned connection relationship may also have other forms.
[0040] Figure 2 A flow chart of a charging control method for a charging stack provided in an embodiment of the present application is shown as follows: Figure 2 As shown, the method includes the following steps S110-S160.
[0041] S110, obtaining a current battery power, a target battery capacity, and a maximum charging current of a target vehicle, wherein the target vehicle is a vehicle currently connected to a charging pile through a target charging gun.
[0042] Among them, the target battery capacity refers to the total capacity of the battery of the target vehicle, that is, the maximum total amount of electrical energy that the battery can store when it is fully charged, and the unit is usually kilowatt-hour (kWh). The current battery power refers to the total amount of electrical energy stored in the battery of the target vehicle (that is, the vehicle currently connected to the charging pile through the target charging gun) at the current moment, which is usually expressed as a percentage (such as 50%) or a specific power value (such as 15kWh). The maximum charging current refers to the maximum charging current that the battery of the target vehicle can withstand without damaging the battery of the target vehicle, and the unit is ampere (Ampere, A). The target charging gun refers to the charging device used to connect the charging pile and the target vehicle. The communication interface on the target charging gun can realize data exchange and power transmission between the resource allocation controller of the charging pile and the target vehicle.
[0043] Specifically, when the target vehicle is connected to the charging stack through the target charging gun, the resource allocation controller in the charging stack will establish a communication connection with the target vehicle through the communication interface on the target charging gun. Among them, the communication interface can be a controller area network bus (Controller Area Network, CAN bus). After the resource allocation controller in the charging stack establishes a communication connection with the target vehicle through the communication interface on the target charging gun, the resource allocation controller can obtain the current battery power, target battery capacity and maximum charging current of the target vehicle.
[0044] According to the current battery power and target battery capacity of the target vehicle, the current required charging power of the target vehicle's battery can be calculated, so as to control the charging gun to deliver the appropriate amount of power to the target vehicle, avoiding overcharging or undercharging of the target vehicle. For example, assuming that the current battery power of the target vehicle is 40% and the target battery capacity is 60kWh, the current required charging power of the target vehicle is 60kWh×(1-40%)=36kWh. In addition, the resource allocation controller controls the charging gun to charge the target vehicle according to the maximum charging current, which can avoid battery overheating and battery damage caused by excessive charging current, and help extend the battery life.
[0045] Specifically, in some embodiments, the charging stack includes a plurality of candidate charging modules. Before step S120, the method includes the following steps:
[0046] Acquire the charging module status corresponding to each of the candidate charging modules from the local database;
[0047] The candidate charging module whose charging module state is an idle state is determined as a target available charging module.
[0048] Among them, the candidate charging module refers to the charging module that can be used to charge the target vehicle among all the charging modules in the charging stack. The charging module status refers to the attribute used to describe the current working status of the candidate charging module. The target available charging module refers to the charging module in the charging module set that can be used to charge the target vehicle, and the charging module status is idle.
[0049] Specifically, the local database stores the identification (IdentityDocument, ID) of each candidate charging module in the charging stack and the charging module status corresponding to the identification. The charging module status includes an idle state and an occupied state. According to the identification of the candidate charging module, the charging module status corresponding to each candidate charging module identification is obtained from the local database. If the charging module status is an idle state, the candidate charging module in the idle state is determined as a target available charging module that can be used to charge the target vehicle; if the charging module status is an occupied state, the candidate charging module in the occupied state is determined as an unavailable charging module that cannot be used to charge the target vehicle.
[0050] By controlling the candidate charging modules in the idle state to charge the target vehicle, the charging modules in the real-time idle state in the charging pile are fully utilized, and charging resources can be flexibly allocated to different vehicles to meet the charging needs of different vehicles. For example, for some electric buses with large battery capacity and high-power charging requirements, more candidate charging modules in the idle state can be allocated to charge them at the same time; while for electric bicycles with small battery capacity and low power requirements, only fewer candidate charging modules in the idle state need to be allocated. Charging the target vehicle based on the candidate charging modules in the idle state, this flexible allocation method helps to better meet the needs of diverse charging scenarios.
[0051] S120: Determine a plurality of target available charging modules corresponding to the target vehicle from a plurality of available charging modules in the charging stack according to the maximum charging current and an output current of a single charging module.
[0052] There are multiple charging modules in a charging stack, wherein the multiple charging modules include available charging modules and unavailable charging modules. An available charging module refers to a charging module that can be used to charge a target vehicle under normal conditions (for example, the state of the charging module is idle). An unavailable charging module refers to a charging module that cannot be used to charge a target vehicle under certain conditions (for example, it is occupied or fails).
[0053] Specifically, after the resource allocation controller in the charging pile communicates with the target vehicle through the communication interface on the charging gun, it can receive the maximum charging current sent by the target vehicle. Based on the received maximum charging current of the target vehicle and the output current of a single charging module, the resource allocation controller can know the target number of available charging modules required by the target vehicle through the calculation formula for the number of available charging modules required (the number of available charging modules required is the target number of available charging modules). Among them, the calculation formula for the number of available charging modules required is as follows: The number of available charging modules required = (the maximum charging current of the target vehicle ÷ the output current of a single charging module). Among them, when the number of available charging modules required is a non-integer, it is rounded down. For example, if the maximum charging current of the target vehicle is 70A and the output current of a single charging module is 25A, then the number of available charging modules required = ceil (70 ÷ 25) = 2.8. At this time, the number of available charging modules required is 2.8, and the number of available charging modules required is rounded down to 2.
[0054] In addition, since the charging module is used to provide electric energy to the vehicle to charge the vehicle, which is a dynamic process, the resource allocation controller's allocation of charging modules is also a dynamic and continuous process. After calculating the required number of available charging modules by the maximum charging current of the target vehicle and the output current of a single charging module, the resource allocation controller will allocate the available charging modules in the idle state to the target vehicle according to the required number of available charging modules until the actual number of available charging modules used to charge the target vehicle is greater than or equal to the required number of available charging modules.
[0055] On the one hand, for the charging stack, charging the target vehicle according to the number of available charging modules on demand can avoid the waste of charging module resources, improve the overall utilization rate of the charging modules and the adaptability of the charging stack to the charging needs of different types of vehicles; on the other hand, determining the number of charging modules based on the maximum charging current can effectively avoid over-current charging and improve charging safety.
[0056] Specifically, in some embodiments, before step S130, the method further includes the following steps:
[0057] Obtaining a current load value of the charging stack;
[0058] Specifically, the charging pile is equipped with a special power monitoring module for real-time tracking of various power parameters of the charging pile (power parameters include current value and voltage value). The power monitoring module can be integrated in the resource allocation controller of the charging pile, or it can be an independent external device (such as an intelligent power monitor). The power monitoring module communicates with the resource allocation controller of the charging pile through a specific communication protocol to achieve efficient transmission of power parameters. As the core of the charging pile, the resource allocation controller of the charging pile sends a data request instruction to obtain the current load value to the power monitoring module through the corresponding communication protocol at a preset time interval (for example, every 5 seconds) or according to a specific event trigger (such as when a new vehicle is connected to the charging gun). The current transformer and voltage transformer inside the power monitoring module measure the current value and voltage value on the input or output side of the charging pile in real time, and calculate the current power value of the charging pile according to the power calculation formula (power = voltage × current) based on the real-time measured current value and voltage value. The current power value represents the current load value of the charging pile. The resource allocation controller of the charging pile can obtain the current load value according to the communication protocol.
[0059] When the current load value is greater than or equal to a preset load threshold, a preset ring distribution method is used as the target power distribution strategy;
[0060] Among them, the preset load threshold refers to a pre-set numerical standard for measuring the load condition of the charging stack, which aims to balance the charging efficiency and safety of the charging stack and prevent problems such as power grid fluctuations and overheating and damage of charging equipment caused by excessive load. The ring distribution method refers to a method of distributing power according to a ring structure path, which has the characteristics of high reliability. The target power allocation strategy refers to a specific plan for power allocation for the charging module under specific conditions in order to achieve goals such as efficient charging and battery protection.
[0061] Specifically, assuming that the total load of a charging pile is 720 kilowatts and its preset load value is 360 kilowatts, when its current load value is greater than or equal to 360 kilowatts, the ring allocation method is used as the target power allocation strategy to charge the target vehicle. If a charging module among all charging modules fails, other paths in the ring structure according to the ring allocation method can continue to charge the target vehicle to ensure the uninterrupted charging service and improve the stability and reliability of the charging pile.
[0062] The method of selecting a power allocation strategy based on a preset power allocation strategy, and determining a target power allocation strategy from a plurality of preset candidate power allocation strategies according to the current battery power and the target battery capacity, comprises:
[0063] When the current load value is less than the preset load threshold, the target power allocation strategy is determined from the plurality of candidate power allocation strategies based on the power allocation strategy selection rule and according to the current battery power and the target battery capacity.
[0064] S130: Based on a preset power allocation strategy selection rule, determine a target power allocation strategy from a plurality of preset candidate power allocation strategies according to the current battery power and the target battery capacity.
[0065] Specifically, in some embodiments, the plurality of candidate power allocation strategies include a full matrix allocation method, a polarity-free matrix allocation method, and a chain allocation method.
[0066] Among them, the full matrix allocation method refers to a power allocation strategy with high flexibility that can realize the connection between any charging interface and any charging module. The non-polar matrix allocation method refers to a matrix power allocation strategy that does not need to consider the polarity between the charging module and the charging interface. The chain allocation method refers to a power allocation strategy suitable for long-distance charging lines or when the charging power needs to be controlled in stages.
[0067] Specifically, in some embodiments, Figure 3 As shown, S130 includes the following steps:
[0068] S131. Determine a target required power according to the current battery power and the target battery capacity.
[0069] S132: If the target required power is greater than a first preset power threshold, use the full matrix allocation method as the target power allocation strategy.
[0070] S133: If the target required power is less than or equal to a first preset power threshold, use the non-polarity matrix allocation method or the chain allocation method as the target power allocation strategy.
[0071] Specifically, the resource control server obtains the current battery power and target battery capacity of the target vehicle through the communication protocol. The target required power is obtained according to the following calculation formula: target required power = target battery capacity × (1-current battery power), where the current battery power is expressed in the form of a percentage. The required power of the target vehicle obtained by calculation is compared with the first preset power threshold, and the corresponding power allocation method is selected as the target power allocation strategy according to the result of the comparison. Among them, if the target required power is greater than the first preset power threshold, the full matrix allocation method is determined as the target power allocation strategy, that is, the charging module is controlled to charge the target vehicle according to the full matrix allocation method. Charging the target vehicle according to the full matrix allocation method can make full use of the power output capacity of each charging module, avoid the situation where some charging modules are idle and other modules are overloaded, thereby realizing accurate power allocation according to the different charging needs of different vehicles.
[0072] If the target power required is less than or equal to the first preset power threshold, the non-polarity matrix allocation method or the chain allocation method is determined as the target power allocation strategy, that is, the charging module is controlled to charge the target vehicle according to the non-polarity matrix allocation method or the chain allocation method. Among them, the use of the non-polarity matrix allocation method does not rely on strict polarity connection. When a charging module or connection line fails, the resource allocation controller can maintain the overall charging function by adjusting the power of other charging modules, reducing the risk of the entire charging stack being paralyzed due to local failures. In the chain allocation method, since each charging module is connected in sequence to form a chain structure to achieve step-by-step power transmission, it ensures that each charging interface can obtain stable charging power and improves the reliability of the charging stack.
[0073] Further, in one embodiment, S133 includes the following steps:
[0074] When the interface attribute of the target charging gun is non-polarity, the non-polarity matrix allocation method is used as the target power allocation strategy;
[0075] When the interface attribute of the target charging gun is polarity, the chain type allocation method is used as the target power allocation strategy.
[0076] In this embodiment, on the basis that the target required power of the target vehicle is less than or equal to the first preset power threshold, different power allocation methods are selected as the target power allocation strategy according to the different polarities of the interface attributes of the target charging gun. Specifically, after the resource allocation controller of the charging pile establishes a communication connection with the target charging gun, it sends a command signal specifically used to obtain the interface attributes of the charging gun to the charging gun controller in the target charging gun. The instruction follows a specific communication protocol, for example, in the CAN bus communication protocol suitable for electric vehicle charging, there is a special message identifier (MessageIdentifier) for such attribute query requests. After receiving the instruction signal, the charging gun controller in the target charging gun reads the interface attributes (polarity or non-polarity) stored in itself and encodes them in the format specified by the communication protocol and sends them to the resource allocation controller. The interface attributes are set and stored in the non-volatile memory during the production or configuration process of the charging gun.
[0077] The resource allocation controller uses different power allocation methods as the target power allocation strategy according to the different interface attributes received. Among them, for the target charging gun with non-polar interface attributes, the non-polar matrix allocation method is used as the target power allocation strategy; for the target charging gun with polar interface attributes, the chain allocation method is used as the target power allocation strategy. According to the different interface attributes on the charging gun, different power allocation methods are selected to adapt to different hardware characteristics, thereby improving the charging compatibility of the charging stack.
[0078] S140. Based on the target power allocation strategy, control the plurality of target available charging modules to charge the target vehicle.
[0079] Specifically, there are multiple charging modules in the charging pile, and according to different target allocation strategies, the corresponding target available charging modules are controlled to charge the target vehicle. Assuming that the target power allocation strategy is a chain allocation method, the resource allocation controller will control the corresponding number of target available charging modules to charge the target vehicle in series according to the charging power required by the target vehicle. For example, there are 5 target available charging modules, and the charging module IDs are M1, M2, M3, M4, and M5 respectively. The charging power of each target available charging module is 100kW, and the charging power required by the target vehicle is 300kW. Then the resource allocation controller controls 3 target available charging modules to charge the target vehicle, wherein the charging module IDs can be sorted in order from small to large, and the top 3 target available charging modules (i.e., the charging module IDs are M1, M2, and M3 respectively) are controlled to charge the target vehicle.
[0080] S150. During the charging process of the target vehicle, the real-time battery power of the target vehicle and the charging interface current of the target charging gun are obtained according to preset time intervals.
[0081] Specifically, after the target charging gun is connected to the target vehicle through the charging interface, the resource allocation controller in the charging stack controls the target charging gun to charge the target vehicle. The resource allocation controller communicates with the target vehicle through a communication protocol to obtain the real-time battery power of the target vehicle, and also communicates with the charging gun controller in the target charging gun through a communication protocol to obtain the charging interface current of the target charging gun.
[0082] At preset time intervals (e.g., 90 seconds), the resource allocation controller sends a request to the target vehicle to obtain the real-time battery power. After receiving the request, the target vehicle reads the current battery power data and transmits the current battery power data back to the resource allocation controller in the format specified by the communication protocol. By regularly obtaining the real-time battery power, it is beneficial to adopt different power allocation strategies according to different battery power stages to improve charging efficiency and reduce charging time, while also ensuring the safety and service life of the battery.
[0083] Similarly, at a preset time interval (e.g., 90 seconds), the resource allocation controller sends a request to the charging gun controller of the target charging gun to obtain the charging interface current. The charging gun controller reads the charging interface current data collected by the current sensor and transmits it back to the resource allocation controller. Regular monitoring of the charging interface current is conducive to maintaining the stability of the charging process and improving charging safety.
[0084] S160: Adjust the target power allocation strategy according to the real-time battery power and the charging interface current, and charge the target vehicle using the adjusted target power allocation strategy.
[0085] Specifically, dynamically adjusting the power allocation strategy based on the real-time battery power and charging interface current can ensure that the most appropriate charging method can be used in different charging stages. When the battery power is low, by selecting a strategy that can provide high-power charging (such as a full matrix allocation method), the battery power can be quickly increased and the charging time can be shortened. When the battery power is close to full, switching to trickle charging or a low-power charging strategy (such as a low-power output mode of a chain allocation method) can avoid overcharging, improve charging safety and battery life, and maximize charging efficiency throughout the charging process.
[0086] Further, in one embodiment, when the target power allocation strategy is a full matrix allocation mode, S160 includes the following steps:
[0087] Determine the current remaining required power according to the real-time battery power and the target battery capacity;
[0088] If the current remaining required power is less than or equal to the second preset power threshold, or the charging interface current is greater than the preset current threshold, the target power allocation strategy is adjusted from the full matrix allocation method to a non-polarity matrix allocation method and a chain allocation method.
[0089] Specifically, the resource allocation controller in the charging pile obtains the real-time battery power of the target vehicle according to the communication connection method, and calculates the current remaining required power of the target vehicle based on the target battery capacity and the real-time battery power. Among them, the specific calculation method is the current remaining required power = target battery capacity - real-time battery power. The second preset power threshold and the preset current threshold are both used to adjust the target power allocation strategy. When the current remaining required power is less than or equal to the second preset power threshold, or the charging interface current is greater than the preset current threshold, the target power allocation strategy is adjusted to a non-polar matrix allocation method and a chain allocation method. Especially in the later stage of charging, when the remaining required power is less, adjusting the target power allocation strategy from a full matrix allocation method to a non-polar matrix allocation method or a chain allocation method helps to improve charging efficiency and stability. In addition, when the charging interface current is greater than the preset current threshold, the strategy is adjusted to effectively prevent excessive current from damaging the battery.
[0090] To summarize, in the embodiment of the present application, based on determining multiple target available charging modules corresponding to the target vehicle according to the maximum charging current and the output current of a single charging module, based on the preset power allocation strategy selection rules, the target power allocation strategy is determined according to the current battery power and the target battery capacity, and the target vehicle is charged according to the target power allocation strategy. During the charging process, the target power allocation strategy is adjusted according to the real-time battery power and the charging interface current, and the target vehicle is charged according to the adjusted target power allocation strategy, thereby improving the charging reliability and charging efficiency of the vehicle.
[0091] Figure 4 is a schematic block diagram of a charging control device for a charging stack provided in an embodiment of the present application. Figure 4 As shown, corresponding to the charging control method of the charging stack, the present invention also provides a charging control device 1000 for the charging stack. The charging control device 1000 for the charging stack includes a unit for executing the charging control method of the charging stack. Figure 4 The charging control device 1000 of the charging stack includes a first acquisition unit 1001, a first determination unit 1002, a second determination unit 1003, a control unit 1004, a second acquisition unit 1005 and an adjustment unit 1006, wherein:
[0092] The first acquisition unit 1001 is used to acquire the current battery power, target battery capacity and maximum charging current of a target vehicle, wherein the target vehicle is a vehicle currently connected to the charging pile through a target charging gun;
[0093] A first determining unit 1002 is used to determine a plurality of target available charging modules corresponding to the target vehicle from a plurality of available charging modules in the charging stack according to the maximum charging current and the output current of a single charging module;
[0094] A second determining unit 1003 is configured to determine a target power allocation strategy from a plurality of preset candidate power allocation strategies based on a preset power allocation strategy selection rule and according to the current battery power and the target battery capacity;
[0095] A control unit 1004 is used to control the plurality of target available charging modules to charge the target vehicle based on the target power allocation strategy;
[0096] The second acquisition unit 1005 is used to acquire the real-time battery power of the target vehicle and the charging interface current of the target charging gun according to a preset time interval during the charging process of the target vehicle;
[0097] The first adjustment unit 1006 is used to adjust the target power allocation strategy according to the real-time battery power and the charging interface current, and charge the target vehicle using the adjusted target power allocation strategy.
[0098] In some embodiments, the charging stack includes a plurality of candidate charging modules, and the charging control device 1000 of the charging stack includes:
[0099] A third acquiring unit, configured to acquire the charging module status corresponding to each of the candidate charging modules from a local database;
[0100] The third determining unit is configured to determine the candidate charging module whose charging module state is an idle state as a target available charging module.
[0101] In some embodiments, the charging control device 1000 of the charging stack further includes:
[0102] A fourth acquisition unit, used to acquire a current load value of the charging stack;
[0103] The first unit is used to use the preset ring allocation method as the target power allocation strategy when the current load value is greater than or equal to the preset load threshold;
[0104] At this time, the second determining unit 1003 is specifically used to:
[0105] When the current load value is less than the preset load threshold, the target power allocation strategy is determined from the plurality of candidate power allocation strategies based on the power allocation strategy selection rule and according to the current battery power and the target battery capacity.
[0106] In some embodiments, the plurality of candidate power allocation strategies include a full matrix allocation method, a polarity-free matrix allocation method, and a chain allocation method.
[0107] In some embodiments, the second determining unit 1003 is specifically configured to:
[0108] Determine the target required power according to the current battery power and the target battery capacity;
[0109] If the target power requirement is greater than a first preset power threshold, the full matrix allocation method is used as the target power allocation strategy;
[0110] If the target required power is less than or equal to the first preset power threshold, the non-polarity matrix allocation method or the chain allocation method is used as the target power allocation strategy.
[0111] In some embodiments, when the second determining unit 1003 executes the step of using the non-polarity matrix allocation mode or the chain allocation mode as the target power allocation strategy, it is specifically used to:
[0112] When the interface attribute of the target charging gun is non-polarity, the non-polarity matrix allocation method is used as the target power allocation strategy;
[0113] When the interface attribute of the target charging gun is polarity, the chain type allocation method is used as the target power allocation strategy.
[0114] In some embodiments, when the target power allocation strategy is a full matrix allocation mode, the first adjustment unit 1006 is specifically configured to:
[0115] Determine the current remaining required power according to the real-time battery power and the target battery capacity;
[0116] If the current remaining required power is less than or equal to the second preset power threshold, or the charging interface current is greater than the preset current threshold, the target power allocation strategy is adjusted from the full matrix allocation method to a non-polarity matrix allocation method and a chain allocation method.
[0117] To summarize, the charging control device 1000 of the charging stack in the embodiment of the present application determines multiple target available charging modules corresponding to the target vehicle based on the maximum charging current and the output current of a single charging module, and based on the preset power allocation strategy selection rules, determines the target power allocation strategy according to the current battery power and the target battery capacity, and charges the target vehicle according to the target power allocation strategy. During the charging process, the target power allocation strategy is adjusted according to the real-time battery power and the charging interface current, and the target vehicle is charged according to the adjusted target power allocation strategy, thereby improving the charging reliability and charging efficiency of the vehicle.
[0118] The charging control device of the charging stack can be implemented in the form of a computer program. Figure 5 Runs on the computer device shown.
[0119] See also Figure 5 , Figure 5 800 is a schematic block diagram of a computer device provided in an embodiment of the present application. The computer device 800 is a terminal or a server.
[0120] See also Figure 5 The computer device 800 includes a processor 802 , a memory and a network interface 805 connected via a system bus 801 , wherein the memory may include a non-volatile storage medium 803 and an internal memory 804 .
[0121] The non-volatile storage medium 803 may store an operating system 8031 and a computer program 8032. The computer program 8032 includes program instructions, which, when executed, may cause the processor 802 to execute an order allocation method.
[0122] The processor 802 is used to provide computing and control capabilities to support the operation of the entire computer device 800 .
[0123] The internal memory 804 provides an environment for the operation of the computer program 8032 in the non-volatile storage medium 803. When the computer program 8032 is executed by the processor 802, the processor 802 can execute an order allocation method.
[0124] The network interface 805 is used to communicate with other devices over the network. Figure 5 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device 800 to which the solution of the present application is applied. The specific computer device 800 may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.
[0125] The processor 802 is used to run the computer program 8032 stored in the memory to implement the following steps:
[0126] Obtaining the current battery power, target battery capacity, and maximum charging current of a target vehicle, wherein the target vehicle is a vehicle currently connected to a charging pile through a target charging gun;
[0127] Determine a plurality of target available charging modules corresponding to the target vehicle from a plurality of available charging modules in the charging stack according to the maximum charging current and the output current of a single charging module;
[0128] Based on a preset power allocation strategy selection rule, determining a target power allocation strategy from a plurality of preset candidate power allocation strategies according to the current battery power and the target battery capacity;
[0129] Based on the target power allocation strategy, controlling the plurality of target available charging modules to charge the target vehicle;
[0130] During the charging process of the target vehicle, the real-time battery power of the target vehicle and the charging interface current of the target charging gun are obtained according to preset time intervals;
[0131] The target power allocation strategy is adjusted according to the real-time battery power and the charging interface current, and the target vehicle is charged using the adjusted target power allocation strategy.
[0132] It should be understood that in the embodiment of the present application, the processor 802 may be a central processing unit (CPU), and the processor 802 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.
[0133] It can be understood by those skilled in the art that all or part of the processes in the method for implementing the above embodiment can be completed by instructing the relevant hardware through a computer program. The computer program includes program instructions, and the computer program can be stored in a storage medium, which is a computer-readable storage medium. The program instructions are executed by at least one processor in the computer system to implement the process steps of the embodiment of the above method.
[0134] Therefore, the present application also provides a storage medium. The storage medium may be a computer-readable storage medium. The storage medium stores a computer program, wherein the computer program includes program instructions. When the program instructions are executed by a processor, the processor executes the following steps:
[0135] Obtaining the current battery power, target battery capacity, and maximum charging current of a target vehicle, wherein the target vehicle is a vehicle currently connected to a charging pile through a target charging gun;
[0136] Determine a plurality of target available charging modules corresponding to the target vehicle from a plurality of available charging modules in the charging stack according to the maximum charging current and the output current of a single charging module;
[0137] Based on a preset power allocation strategy selection rule, determining a target power allocation strategy from a plurality of preset candidate power allocation strategies according to the current battery power and the target battery capacity;
[0138] Based on the target power allocation strategy, controlling the plurality of target available charging modules to charge the target vehicle;
[0139] During the charging process of the target vehicle, the real-time battery power of the target vehicle and the charging interface current of the target charging gun are obtained according to preset time intervals;
[0140] The target power allocation strategy is adjusted according to the real-time battery power and the charging interface current, and the target vehicle is charged using the adjusted target power allocation strategy.
[0141] The storage medium may be a USB flash drive, a mobile hard disk, a read-only memory (ROM), a magnetic disk, or an optical disk, etc., which are computer-readable storage media that can store program codes.
[0142] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.
[0143] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of each unit is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
[0144] The steps in the method of the embodiment of the present application can be adjusted in order, combined and deleted according to actual needs. The units in the device of the embodiment of the present application can be combined, divided and deleted according to actual needs. In addition, the functional units in the various embodiments of the present application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.
[0145] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, terminal, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application.
[0146] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.
Claims
1. A charging control method for a charging stack, characterized in that: include: Obtaining the current battery power, target battery capacity, and maximum charging current of a target vehicle, wherein the target vehicle is a vehicle currently connected to a charging pile through a target charging gun; Determine a plurality of target available charging modules corresponding to the target vehicle from a plurality of available charging modules in the charging stack according to the maximum charging current and the output current of a single charging module; Based on a preset power allocation strategy selection rule, determining a target power allocation strategy from a plurality of preset candidate power allocation strategies according to the current battery power and the target battery capacity; Based on the target power allocation strategy, controlling the plurality of target available charging modules to charge the target vehicle; During the charging process of the target vehicle, the real-time battery power of the target vehicle and the charging interface current of the target charging gun are obtained according to preset time intervals; The target power allocation strategy is adjusted according to the real-time battery power and the charging interface current, and the target vehicle is charged using the adjusted target power allocation strategy.
2. The charging control method of the charging stack according to claim 1, characterized in that: The charging stack includes a plurality of candidate charging modules; before determining a plurality of target available charging modules corresponding to the target vehicle from a plurality of available charging modules in the charging stack according to the maximum charging current and the output current of a single charging module, the method includes: Acquire the charging module status corresponding to each of the candidate charging modules from the local database; The candidate charging module whose charging module state is an idle state is determined as a target available charging module.
3. The charging control method of the charging stack according to claim 1, characterized in that: The plurality of candidate power allocation strategies include a full matrix allocation method, a polarity-free matrix allocation method, and a chain allocation method.
4. The charging control method of the charging stack according to claim 3, characterized in that: The method of selecting a power allocation strategy based on a preset power allocation strategy, and determining a target power allocation strategy from a plurality of preset candidate power allocation strategies according to the current battery power and the target battery capacity, comprises: Determine the target required power according to the current battery power and the target battery capacity; If the target power requirement is greater than a first preset power threshold, the full matrix allocation method is used as the target power allocation strategy; If the target required power is less than or equal to the first preset power threshold, the non-polarity matrix allocation method or the chain allocation method is used as the target power allocation strategy.
5. The charging control method of the charging stack according to claim 4, characterized in that: The using the non-polarity matrix allocation method or the chain allocation method as the target power allocation strategy includes: When the interface attribute of the target charging gun is non-polarity, the non-polarity matrix allocation method is used as the target power allocation strategy; When the interface attribute of the target charging gun is polarity, the chain type allocation method is used as the target power allocation strategy.
6. The charging control method of the charging stack according to claim 1, characterized in that: When the target power allocation strategy is a full matrix allocation mode; adjusting the target power allocation strategy according to the real-time battery power and the charging interface current includes: Determine the current remaining required power according to the real-time battery power and the target battery capacity; If the current remaining required power is less than or equal to the second preset power threshold, or the charging interface current is greater than the preset current threshold, the target power allocation strategy is adjusted from the full matrix allocation method to a non-polarity matrix allocation method and a chain allocation method.
7. The charging control method for a charging stack according to any one of claims 1 to 6, characterized in that: Before determining the target power allocation strategy from a plurality of preset candidate power allocation strategies based on the preset power allocation strategy selection rule and according to the current battery power and the target battery capacity, the method further includes: Obtaining a current load value of the charging stack; When the current load value is greater than or equal to a preset load threshold, a preset ring distribution method is used as the target power distribution strategy; The method of selecting a power allocation strategy based on a preset power allocation strategy, and determining a target power allocation strategy from a plurality of preset candidate power allocation strategies according to the current battery power and the target battery capacity, comprises: When the current load value is less than the preset load threshold, the target power allocation strategy is determined from the plurality of candidate power allocation strategies based on the power allocation strategy selection rule and according to the current battery power and the target battery capacity.
8. A charging control device for a charging stack, characterized in that: include: A first acquisition unit, used to acquire the current battery power, target battery capacity and maximum charging current of a target vehicle, wherein the target vehicle is a vehicle currently connected to the charging pile through a target charging gun; A first determining unit, configured to determine a plurality of target available charging modules corresponding to the target vehicle from a plurality of available charging modules in the charging stack according to the maximum charging current and an output current of a single charging module; A second determining unit, configured to determine a target power allocation strategy from a plurality of preset candidate power allocation strategies based on a preset power allocation strategy selection rule and according to the current battery power and the target battery capacity; A control unit, configured to control the plurality of target available charging modules to charge the target vehicle based on the target power allocation strategy; A second acquisition unit is used to acquire the real-time battery power of the target vehicle and the charging interface current of the target charging gun according to a preset time interval during the charging process of the target vehicle; An adjustment unit is used to adjust the target power allocation strategy according to the real-time battery power and the charging interface current, and charge the target vehicle through the adjusted target power allocation strategy.
9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the charging control method of the charging stack according to any one of claims 1 to 7 is implemented.
10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the charging control method of the charging stack according to any one of claims 1 to 7 is implemented.