Charging Control Method, Charging Device, and Storage Medium

Abstract

The present application relates to the field of energy storage technologies, and provides a charging control method, a charging device, and a storage medium. The method includes: determining the charging start sequence of multiple batteries according to the power of each battery; selecting candidate batteries from the multiple batteries according to the charging start sequence, and determining the required charging power of the candidate batteries based on the charging intervals corresponding to the candidate batteries; if the required charging power is less than or equal to the remaining charging power of the charging device, charging the candidate batteries, and updating the remaining charging power according to the charging consumption power of the candidate batteries; and selecting the next candidate battery from the multiple batteries for charging according to the charging start sequence until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery. Using this method, multiple batteries can be charged simultaneously, thereby effectively shortening the charging cycle of multiple batteries and improving the charging efficiency.

Description

Technical Field

[0001] This application relates to the technical field of energy storage, and in particular, to a charging control method, a charging device, and a storage medium. Background Art

[0002] The multi-battery charging management device is used to charge and manage multiple batteries (at least three or more). It is applicable to application scenarios that require a large number of backup batteries or have a continuous demand for battery life, such as drone operation, electric tool use, emergency rescue equipment, etc. However, when the multi-battery charging management device charges multiple batteries simultaneously, it requires a relatively high input power supply, and high-specification electronic components and a complex heat dissipation system need to be used, which will significantly increase the manufacturing cost of the multi-battery charging management device. Therefore, in actual application scenarios, it is difficult to implement the method of charging multiple batteries simultaneously.

[0003] In the related art, the multi-battery charging management device adopts a "smart round-robin" charging mode, in which only one battery is charged intensively within the same time period, and the other batteries are in a standby or low-current pre-charging state. When the first battery is fully charged, it automatically switches to the next battery for charging, and so on until all batteries are fully charged in turn. However, in this charging mode, each battery needs to wait for the previous battery to complete charging before it can start charging, resulting in an extended overall charging cycle and low overall charging efficiency. Summary of the Invention

[0004] In view of this, this application provides a charging control method, a charging device, and a storage medium to solve the problems of long charging cycle and low charging efficiency in the charging methods provided in the related art.

[0005] In the first aspect of the embodiments of this application, a charging control method is provided, which is applied to a charging device. The charging device is electrically connected to multiple batteries. The charging control method includes: determining the charging start sequence of the multiple batteries according to the power of each battery; selecting a candidate battery from the multiple batteries according to the charging start sequence, and determining the required charging power of the candidate battery based on the charging interval corresponding to the candidate battery; if the required charging power is less than or equal to the remaining charging power of the charging device, charging the candidate battery, and updating the remaining charging power according to the charging power consumed by the candidate battery; and selecting the next candidate battery from the multiple batteries for charging according to the charging start sequence until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery.

[0006] In some embodiments, determining the charging start sequence of the multiple batteries according to the power of each battery includes: sorting the powers of the multiple batteries in descending order; and determining the charging start sequence of the multiple batteries according to the power sorting.

[0007] In some embodiments, the method further includes: if there are at least two batteries with the same power, determining the charging start sequence of the at least two batteries according to the battery slot sequence corresponding to the at least two batteries.

[0008] In some embodiments, determining candidate batteries from the multiple batteries according to the charging start sequence includes: determining the charging status of each battery in turn according to the charging start sequence; and selecting the battery with the highest charging priority as the candidate battery from the batteries in the uncharged state, where the charging priority is determined based on the charging start sequence of the batteries in the uncharged state.

[0009] In some embodiments, the method further includes: if it is detected that a new battery is connected to the charging device, obtaining the powers of all the batteries electrically connected to the charging device; updating the charging start sequence based on the powers of all the batteries and the battery slot sequence, and selecting the next candidate battery from the multiple batteries according to the updated charging start sequence.

[0010] In some embodiments, the method further includes: obtaining the historical charging current change trend and the historical charging voltage change trend according to the historical charging records of the battery; dividing the charging intervals of the battery based on the charging current change trend and the charging voltage change trend; obtaining the maximum charging power corresponding to each charging interval, and using the maximum charging power as the required charging power corresponding to each charging interval.

[0011] In some embodiments, the method further includes: calculating the corresponding charging interval according to the power of the candidate battery.

[0012] In some embodiments, the charging intervals include a constant voltage charging interval, a constant current charging interval, and a trickle charging interval. The method further includes: if the power of the battery is greater than a first power threshold and less than a second power threshold, determining that the charging interval of the battery is the constant current charging interval; if the power of the battery is greater than or equal to the second power threshold and less than a third power threshold, determining that the charging interval of the battery is the constant voltage charging interval; if the power of the battery is greater than or equal to the third power threshold and less than a fourth power threshold, determining that the charging interval of the battery is the trickle charging interval.

[0013] A second aspect of the embodiments of the present application provides a charging device, including a memory, a processor, and computer-readable instructions stored in the memory and executable on the processor. When the processor executes the computer-readable instructions, the above-mentioned charging control method is implemented.

[0014] A third aspect of the embodiments of the present application provides a computer-readable storage medium storing computer-readable instructions, which implement the above-mentioned charging control method when executed by a processor.

[0015] In a charging control method provided by the embodiments of the present application, according to the power of each battery and the battery slot order, the charging start order of multiple batteries is determined. In accordance with the charging start order of the multiple batteries, candidate batteries are sequentially selected, and according to the required charging power of the candidate batteries, the candidate batteries are charged as needed until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery or all the multiple batteries have been fully charged. In the case where the remaining charging power of the charging device is sufficient, this method can enable multiple batteries to be charged simultaneously according to the power requirements of each battery, thereby effectively shortening the charging cycle of the multiple batteries and improving the charging efficiency. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is an application scenario diagram of the charging control method provided by the embodiments of the present application.

[0018] Figure 2 It is a flowchart of the implementation of the charging control method provided by the embodiments of the present application.

[0019] Figure 3 It is a schematic diagram of the battery charging curve provided by the embodiments of the present application.

[0020] Figure 4 It is a schematic structural diagram of the charging control device provided by the embodiments of the present application.

[0021] Figure 5 It is a schematic structural diagram of the charging device provided by the embodiments of the present application. Detailed Embodiments

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0023] Hereinafter, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the description of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. It should be understood that unless otherwise stated in this application, " / " means "or". For example, A / B may represent A or B. The "and / or" in this application is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone, these three situations. "At least one" means one or more. "Multiple" means two or more than two. For example, at least one of a, b, or c may represent: a, b, c, a and b, a and c, b and c, a, b, and c, these seven situations.

[0025] Please refer to Figure 1 , Figure 1 which is an application scenario diagram of the charging control method provided by the embodiments of the present application. As Figure 1 shown, the charging device 100 is electrically connected to batteries 1 to N. By being electrically connected to batteries 1 to N, the charging device 100 can charge batteries 1 to N and communicate with batteries 1 to N, so as to realize charging control of batteries 1 to N.

[0026] In the process of implementing charging control, the charging device 100 determines the charging start order of Batteries 1 to N according to the power of each battery and the battery slot order. The charging device 100 selects candidate batteries from Batteries 1 to N according to the charging start order, determines the required charging power of the candidate batteries based on the charging intervals corresponding to the candidate batteries, and compares the required charging power of the candidate batteries with the remaining charging power of the charging device 100. If the required charging power is less than or equal to the remaining charging power of the charging device 100, the charging device 100 charges the candidate batteries and updates the remaining charging power according to the charging consumption power of the candidate batteries. At the same time, the charging device 100 selects the next candidate battery from Batteries 1 to N for charging according to the charging start order until the remaining charging power of the charging device 100 is less than the required charging power of the selected candidate battery. By using the above charging control method, the charging device 100 can achieve simultaneous charging of multiple batteries, thereby effectively shortening the charging cycle of multiple batteries and improving the charging efficiency.

[0027] In some embodiments, the charging device 100 provides input for Batteries 1 to N through a charging port (such as a Type-c charging port), and is compatible with a charging protocol (such as the Power Deliver (PD) charging protocol). The types of the charging port and the charging protocol are not limited in the embodiments of the present application.

[0028] In some embodiments, the charging device 100 can be any one of devices such as a power supply, a charger, and a charging cabinet. Batteries 1 to N can be lithium batteries, lead-acid batteries, etc. The specific device types of the charging device 100 and Batteries 1 to N are not limited in the embodiments of the present application.

[0029] Figure 1 The shown scenario is only a schematic example, and the charging control method provided by the present application can also be applied in other scenarios. The specific application scenarios of the charging control method are not limited in the embodiments of the present application.

[0030] Please refer to Figure 2 As shown, it is a flowchart of the implementation of the charging control method provided by the embodiments of the present application. This method is applied to a charging device. In the embodiments of the present application, this method is described by taking the charging device 100 in Figure 1 as an example. The method includes the following steps.

[0031] S11: Determine the charging start order of multiple batteries according to the power of each battery.

[0032] In some embodiments, the charging device can detect the power of each battery through a sensor.

[0033] In some other embodiments, the charging device may also send a power acquisition request to the battery, and the battery responds to the power acquisition request and sends the corresponding power information to the charging device. The embodiments of the present application do not limit the specific manner of acquiring the power of each battery.

[0034] In some embodiments of the present application, the charging device determines the charging start order of multiple batteries according to the power of each battery and the battery slot order, including: the charging device sorts the power of multiple batteries in descending order; and determines the charging start order of multiple batteries according to the power sorting.

[0035] In some embodiments, the charging device determines the charging start order of multiple batteries according to the power of each battery. The higher the power of the battery, the higher the charging priority, and the more priority is given to charging this battery. For example, if multiple batteries include Battery 1, Battery 2, and Battery 3, the power of Battery 1 is 80%, the power of Battery 2 is 40%, and the power of Battery 3 is 60%, then the charging start order of the multiple batteries is Battery 1, Battery 3, and Battery 2.

[0036] In some embodiments of the present application, if there are at least two batteries with the same power, the charging device determines the charging start order of at least two batteries according to the battery slot order corresponding to at least two batteries.

[0037] In some embodiments, the charging device is provided with a plurality of battery slots for providing electrical connection to the battery, so that the charging device can supply power to the battery. Each battery slot is provided with a fixed number or position identifier.

[0038] In some embodiments, the battery slot order can be determined according to the sorting method of the fixed number or position identifier corresponding to the battery slot. For example, the battery slot order can be determined in descending or ascending order of the number, or the battery slot order can be determined in the order from left to right according to the position identifier, or in the order from right to left according to the position identifier, or in the order from top to bottom according to the position identifier, or in the order from bottom to top according to the position identifier. The embodiments of the present application do not limit the determination method of the battery slot order.

[0039] As an example, the charging device determines the battery slot order in descending order of the numbers, and in the case where the battery powers of at least two batteries are the same, the larger the number of the battery slot corresponding to the battery, the higher the charging priority of the corresponding battery. For example, there are multiple batteries including Battery 1, Battery 2, and Battery 3. The power of Battery 1 is 80%, the power of Battery 2 is 40%, and the power of Battery 3 is 40%. The battery slot number of Battery 1 is 01, the battery slot number of Battery 2 is 02, and the battery slot number of Battery 3 is 03. In this case, the charging device determines that the charging priority of Battery 1 is the highest. The powers of Battery 2 and Battery 3 are the same, and the battery slot number of Battery 3 is larger, so the corresponding charging priority is higher. Thus, the charging start order of Battery 1, Battery 2, and Battery 3 is Battery 1, Battery 3, and Battery 2.

[0040] In some other embodiments, the charging start order is also determined in combination with other factors, such as the type, capacity, charging rate of the battery, and the limitations of the charging device, etc., to ensure the safety, efficiency, and reliability of the charging process.

[0041] S12: Select candidate batteries from the multiple batteries according to the charging start order, and determine the required charging power of the candidate batteries based on the charging intervals corresponding to the candidate batteries.

[0042] In some embodiments, the charging interval represents different power states or charging stages that the battery experiences during the process from the start of charging to being fully charged. The charging interval includes a constant voltage charging interval, a constant current charging interval, and a trickle charging interval.

[0043] In some embodiments, the required charging power represents the maximum charging power required by the candidate battery during the charging process in the corresponding charging interval.

[0044] In some embodiments of the present application, determining candidate batteries from the multiple batteries according to the charging start order includes: determining the charging status of each battery in sequence according to the charging start order; selecting the battery with the highest charging priority from the batteries with the charging status of uncharged as the candidate battery, and the charging priority is determined based on the charging start order of the batteries with the charging status of uncharged.

[0045] In some embodiments, the charging status includes a charged state and an uncharged state.

[0046] In some embodiments, the higher the charging priority of the battery, the more preferentially the charging device charges the battery.

[0047] In some embodiments, the candidate battery represents the battery with the highest charging priority among the batteries with the charging status of uncharged.

[0048] In some embodiments of the present application, the charging device may calculate a corresponding charging range according to the power of the candidate battery.

[0049] In some embodiments, the charging range includes a constant voltage charging range, a constant current charging range, and a trickle charging range. The charging range represents different power states or charging stages that the battery experiences during the process from the start of charging to full charge. Each charging range corresponds to a different power range. As Figure 3 shown, the stage from t0 to t1 is the constant current charging range. At this time, the battery power is low. In the constant current charging mode, the current is constant. As the power of the battery increases, the voltage rises, and the charging power of the battery rises. The stage from t1 to t2 is the constant voltage charging range. In the constant voltage charging mode, the voltage remains unchanged, and the current gradually decreases as the battery power increases. The charging power of the battery gradually decreases. After t2 is the trickle charging range. At this time, the battery power is close to full charge and the charging is slow. In the trickle charging (or floating charge) mode, the battery is charged with a small charging power.

[0050] In some embodiments, the charging device may obtain the historical power change data corresponding to each charging range of the battery by obtaining the historical charging record of the battery. Based on the historical power change data corresponding to each charging range of the battery, the charging device may use a mathematical statistical model, a deep learning model, etc. to predict the power range corresponding to each charging range of the battery. After obtaining the power range corresponding to each charging range of the battery, the charging device may match the corresponding charging range according to the power range where the battery power is located.

[0051] In some embodiments of the present application, if the power of the battery is greater than the first power threshold and less than the second power threshold, the charging device determines that the charging range of the battery is the constant current charging range; if the power of the battery is greater than or equal to the second power threshold and less than the third power threshold, the charging device determines that the charging range of the battery is the constant voltage charging range; if the power of the battery is greater than or equal to the third power threshold and less than the fourth power threshold, the charging device determines that the charging range of the battery is the trickle charging range.

[0052] In some embodiments, the charging device may use a mathematical statistical model, a deep learning model, etc. to predict the first power threshold, the second power threshold, the third power threshold, and the fourth power threshold based on the historical power change data corresponding to each charging range of the battery.

[0053] In other embodiments, the charging device may calculate a corresponding charging range according to the charging current and charging voltage of the battery. As Figure 3As shown, in different charging intervals, there are obvious differences in the states of the charging current and charging voltage of the battery. Therefore, the charging device can obtain the charging current range and charging voltage range corresponding to different charging intervals. The charging device can determine the corresponding charging interval according to the charging current range where the charging current of the battery is located and the charging voltage range where the charging voltage is located.

[0054] In some embodiments of the present application, the charging device determines the required charging power corresponding to each charging interval, including: obtaining the historical charging current change trend and historical charging voltage change trend according to the historical charging record of the battery; dividing the charging interval of the battery based on the charging current change trend and charging voltage change trend; in order to ensure that the charging power allocated by the charging device meets the charging requirements of the battery, the charging device can obtain the maximum charging power corresponding to each charging interval and use the maximum charging power as the required charging power corresponding to each charging interval.

[0055] As Figure 3 shown, in the constant current charging mode, the current is constant. As the battery charge increases, the voltage rises and the charging power of the battery rises. At t1, the charging power of the battery is the largest. Therefore, the charging device can use the charging power at t1 as the required charging power corresponding to the constant current charging interval. The stage from t1 to t2 is the constant voltage charging interval. In the constant voltage charging mode, the voltage remains unchanged, and the current gradually decreases as the battery charge increases, and the charging power of the battery gradually decreases. Among them, at t1, the charging power of the battery is the largest. Therefore, the charging device can use the charging power at t1 as the required charging power corresponding to the constant voltage charging interval. After t2 is the trickle charging interval. In the trickle charging (or floating charging) mode, the charging power of the battery shows a small decreasing trend. At t2, the charging power of the battery is the largest. Therefore, the charging device can use the charging power at t2 as the required charging power corresponding to the trickle charging interval.

[0056] In some other embodiments of the present application, the battery can obtain the battery charge and calculate the charging interval and the corresponding required charging power, and send the battery charge, charging interval and the corresponding required charging power to the charging device.

[0057] S13: Determine whether the required charging power is less than or equal to the remaining charging power of the charging device.

[0058] In some embodiments, the remaining charging power of the charging device represents the available charging power of the charging device.

[0059] In some embodiments, the required charging power of the candidate battery being less than or equal to the remaining charging power of the charging device indicates that the remaining charging power of the charging device can meet the charging requirements of the candidate battery. The required charging power of the candidate battery being greater than the remaining charging power of the charging device indicates that the remaining power of the charging device may not be able to meet the requirements of the candidate battery.

[0060] S14: If the required charging power of the candidate battery is greater than the remaining charging power of the charging device, stop charging the candidate battery.

[0061] In some embodiments, that the required charging power of the candidate battery is greater than the remaining charging power of the charging device means that the remaining charging power of the charging device cannot meet the charging requirement of the candidate battery.

[0062] In addition, in the case where multiple batteries are of the same type, if the charging device determines the charging start order of multiple batteries in the order of decreasing battery power, then according to the battery charging curves corresponding to the multiple batteries, the required charging power of the battery charged first will be less than or equal to the required charging power of the battery charged later. In this case, when the required charging power of the currently selected candidate battery is greater than the remaining charging power of the charging device, the required charging power of the batteries whose charging start order is after the currently selected candidate battery must also be greater than the remaining charging power of the charging device. Therefore, in the case where the charging device determines the charging start order of multiple batteries in the order of decreasing battery power, if the required charging power of the candidate battery is greater than the remaining charging power of the charging device, the charging device can control to stop charging the currently selected candidate battery and the batteries whose charging start order is after the currently selected candidate battery. In this process, for the batteries whose required charging power is less than the remaining charging power of the charging device, the charging device can continue to charge them.

[0063] S15: If the required charging power is less than or equal to the remaining charging power of the charging device, charge the candidate battery and update the remaining charging power according to the charging power consumption of the candidate battery.

[0064] In some embodiments, that the required charging power of the candidate battery is less than or equal to the remaining charging power of the charging device means that the remaining charging power of the charging device can meet the charging requirement of the candidate battery. In this case, the charging device can charge the candidate battery. During the process of the charging device charging the candidate battery, there will be power conversion and loss. Specifically, part of the power output by the charging device is effectively absorbed by the battery and converted into chemical energy for storage, while the other part is consumed due to non-ideal factors (such as resistance thermal effect, etc.) during the energy conversion process, so the remaining available charging power of the charging device will decrease accordingly. Therefore, while charging the candidate battery, the charging device can update the remaining charging power according to the charging power consumption of the candidate battery.

[0065] S16: According to the charging start order, select the next candidate battery from multiple batteries for charging until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery.

[0066] In some embodiments, when the required charging power of a candidate battery is less than or equal to the remaining charging power of the charging device, the charging device charges the candidate battery. Meanwhile, according to the charging start sequence, the charging device sequentially selects the next candidate battery from multiple batteries for charging until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery, and then stops charging the selected candidate battery.

[0067] As an example, the multiple batteries include Battery 1, Battery 2, and Battery 3. The power level of Battery 1 is 90%, the power level of Battery 2 is 60%, and the power level of Battery 3 is 20%. The charging start sequence of the multiple batteries is Battery 1, Battery 2, and Battery 3 in turn. During the process of controlling the charging of the multiple batteries, the charging device preferentially selects Battery 1 as the candidate battery. If the required charging power of Battery 1 is greater than the remaining charging power of the charging device, the charging device does not charge any battery. If the required charging power of Battery 1 is less than or equal to the remaining charging power of the charging device, the charging device charges Battery 1, updates the remaining charging power of the charging device according to the charging power consumption of Battery 1, and selects Battery 2 as the candidate battery according to the charging start sequence. If the required charging power of Battery 2 is greater than the remaining charging power of the charging device, the charging device only charges Battery 1 and does not charge Battery 2 and Battery 3. If the required charging power of Battery 2 is less than or equal to the remaining full-charging power of the charging device, the charging device charges both Battery 2 and Battery 1, updates the remaining charging power of the charging device according to the charging power consumption of Battery 2 and Battery 1, and selects Battery 3 as the candidate battery according to the charging start sequence. If the required charging power of Battery 3 is greater than the remaining charging power of the charging device, the charging device only charges Battery 1 and Battery 2 and does not charge Battery 3. If the required charging power of Battery 3 is less than or equal to the remaining charging power of the charging device, the charging device charges Battery 3, Battery 2, and Battery 1 simultaneously, and updates the remaining charging power of the charging device according to the charging power consumption of Battery 3, Battery 2, and Battery 1.

[0068] In some embodiments, when the power level of the candidate battery reaches the corresponding preset power threshold, the charging device stops charging the candidate battery. Alternatively, when the charging current of the candidate battery is less than the preset current threshold, the charging device stops charging the candidate battery. Among them, the preset power threshold and the preset current threshold can be set customarily. For example, the preset power threshold can be set to 100%, 98%, etc. The preset current threshold can be set to 0.02A, 0.03A, 0.05A, etc. The embodiments of the present application do not limit the specific settings of the preset power threshold and the preset current threshold.

[0069] In some embodiments of the present application, the charging device can detect the remaining charging power of the charging device in real time. For example, when one or more batteries are in the trickle charging range, the consumed charging power will gradually decrease, and the remaining charging power of the charging device will gradually increase. As the remaining charging power increases, the remaining charging power may meet the charging requirements of some batteries. In this case, the charging device can select the battery with the highest charging priority from the batteries in the uncharged state as the candidate battery. If the required charging power of the candidate battery is less than or equal to the remaining charging power of the charging device, the candidate battery is charged.

[0070] In some embodiments of the present application, after at least one battery is fully charged or the battery power reaches a preset power threshold, to avoid overcharging affecting the performance integrity of the battery, etc., the charging device will stop charging the at least one battery. When the charging device stops charging the at least one battery, part of the charging power will be released, so the remaining charging power of the charging device will increase. In this case, the charging device can select the battery with the highest charging priority from the batteries in the uncharged state as the candidate battery. If the required charging power of the candidate battery is less than or equal to the remaining charging power of the charging device, the charging device charges the candidate battery.

[0071] In some embodiments of the present application, if the charging device is disconnected from the battery in the charging state, the remaining charging power of the charging device will increase. The charging device can select the battery with the highest charging priority from the batteries in the uncharged state as the candidate battery. If the required charging power of the candidate battery is less than or equal to the remaining charging power of the charging device, the charging device charges the candidate battery.

[0072] In some embodiments of the present application, if it is detected that a new battery is connected to the charging device, the charging device can obtain the power of all the batteries electrically connected to the charging device, and update the charging start order based on the power of all the batteries and the battery slot order. The charging device can select the next candidate battery from multiple batteries for charging according to the updated charging start order until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery.

[0073] In a charging control method provided by an embodiment of the present application, the charging start order of multiple batteries is determined according to the power of each battery and the battery slot order. According to the charging start order of the multiple batteries, candidate batteries are sequentially selected, and according to the required charging power of the candidate batteries, the candidate batteries are charged as needed until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery or all the multiple batteries have been charged. When the remaining charging power of the charging device is sufficient, using this method can enable multiple batteries to be charged simultaneously, thereby effectively shortening the charging cycle of multiple batteries and improving the charging efficiency.

[0074] It should be understood that the magnitudes of the sequence numbers of the steps in the above embodiments do not imply the order of execution. The order of execution of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0075] Please refer to Figure 4 , which is the structural diagram of the charging control device provided by the embodiments of the present application, can implement the details of the charging control method in the above embodiments and achieve the same effect. As Figure 4 shown, the charging control device 10 can be applied to a charging device with data processing functions. The charging control device 10 includes: a sorting module 11, configured to determine the charging start order of multiple batteries according to the power of each battery and the battery slot order; a selection module 12, configured to select candidate batteries from multiple batteries according to the charging start order, and determine the required charging power of the candidate batteries based on the charging intervals corresponding to the candidate batteries; a charging module 13, configured to charge the candidate batteries if the required charging power is less than or equal to the remaining charging power of the charging device, and update the remaining charging power according to the charging consumption power of the candidate batteries; and the selection module 12 is further configured to select the next candidate battery from multiple batteries for charging according to the charging start order until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery.

[0076] For the specific limitations of the charging control device 10, reference can be made to the limitations on the charging control method in the foregoing text, which will not be elaborated herein. Each module in the above charging control device 10 can be implemented in whole or in part by software, hardware, and their combinations. The above modules can be embedded in or independent of the processor in the charging device in the form of hardware, or stored in the memory in the charging device in the form of software, so as to facilitate the processor to call and execute the operations corresponding to the above modules.

[0077] Please refer to Figure 5 , Figure 5 shown is a schematic structural diagram of a charging device provided by the embodiments of the present application. The network where the charging device 100 is located includes, but is not limited to, the Internet, wide area network, metropolitan area network, local area network, virtual private network (VPN), etc.

[0078] As Figure 5 shown, the charging device 100 includes a communication module 101, a memory 102, a processor 103, an input / output interface 104, and a bus 105. The processor 103 is respectively coupled to the communication module 101, the memory 102, and the input / output interface 104 through the bus 105.

[0079] The communication module 101 can be a wireless communication module or a mobile communication module. The wireless communication module can provide solutions for wireless communications applied to the charging device 100, including Wireless Local Area Networks (WLAN) (e.g., Wireless Fidelity (Wi-Fi) network), Bluetooth (BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), etc. The mobile communication module can provide solutions for wireless communications applied to the charging device 100, including 2G / 3G / 4G / 5G, etc.

[0080] The memory 102 can include one or more Random Access Memories (RAM) and one or more Non-volatile Memories (NVM). The random access memory can be directly read and written by the processor 103, and can be used to store the operating system or executable programs of other running programs (e.g., machine instructions), and can also be used to store user and application data, etc. The random access memory can include Static Random-access memory (SRAM), Dynamic Random-access memory (DRAM), Synchronous Dynamic Random-access memory (SDRAM), Double Data Rate Synchronous Dynamic Random-access memory (DDR SDRAM, e.g., the fifth generation of DDR SDRAM is generally called DDR5 SDRAM), etc.

[0081] The non-volatile memory can also store executable programs and store user and application data, etc., and can be pre-loaded into the random access memory for the processor 103 to directly read and write. The non-volatile memory can include disk storage devices, flash memory.

[0082] The memory 102 is used to store one or more computer programs. The one or more computer programs are configured to be executed by the processor 103. The one or more computer programs include a plurality of instructions, and when the plurality of instructions are executed by the processor 103, a charging control method executable on the charging device 100 can be implemented.

[0083] In other embodiments, the charging device 100 further includes an external memory interface for connecting to an external memory to implement the expansion of the storage capacity of the charging device 100.

[0084] The processor 103 may include one or more processing units. For example, the processor 103 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Among them, different processing units may be independent devices or integrated in one or more processors.

[0085] The processor 103 provides computing and control capabilities. For example, the processor 103 is used to execute the computer program stored in the memory 102 to implement the above-mentioned charging control method.

[0086] The input / output interface 104 is used to provide a channel for user input or output. For example, the input / output interface 104 can be used to connect various input / output devices, such as a mouse, a keyboard, a touch device, a display screen, etc., so that the user can input information or visualize the information.

[0087] The bus 105 is at least used to provide a communication channel between the communication module 101, the memory 102, the processor 103, and the input / output interface 104 in the charging device 100.

[0088] It can be understood that the structure illustrated in the embodiments of the present application does not constitute a specific limitation on the charging device 100. In other embodiments of the present application, the charging device 100 may include more or fewer components than those illustrated, or combine certain components, or split certain components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0089] The embodiments of the present application also provide a computer-readable storage medium, on which a computer program is stored. The computer program includes program instructions, and the method implemented when the program instructions are executed may refer to the charging control method in each of the above embodiments of the present application.

[0090] Among them, the computer-readable storage medium may be the internal memory of the charging device in the above embodiments, such as the hard disk or memory of the charging device. The computer-readable storage medium may also be an external storage device of the charging device, such as a plug-in hard disk equipped on the charging device, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, etc.

[0091] Furthermore, the computer-readable storage medium may mainly include a program storage area and a data storage area. Among them, the program storage area may store an operating system, application programs required for at least one function, etc.; the data storage area may store data created according to the use of the charging device, etc.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A charging control method, applied to a charging device, characterized in that: The charging device is electrically connected to a plurality of batteries, and the charging control method comprises: Determine the charging start sequence of the multiple batteries according to the power level of each battery, wherein if there are at least two batteries with the same power level, determine the charging start sequence of the at least two batteries according to the order of battery slots corresponding to the at least two batteries; According to the charging start sequence, a candidate battery is selected from the multiple batteries, and the required charging power of the candidate battery is determined based on the charging interval corresponding to the candidate battery, including: obtaining historical power change data corresponding to each charging interval of the candidate battery; based on the historical power change data corresponding to each charging interval of the candidate battery, using a preset model to predict the power interval corresponding to each charging interval of the candidate battery; according to the power interval where the power of the candidate battery is located, matching to obtain the charging interval of the candidate battery; using the maximum charging power of the charging interval of the candidate battery as the required charging power; If the required charging power is less than or equal to the remaining charging power of the charging device, charging the candidate battery, and updating the remaining charging power according to the charging power consumption of the candidate battery; and According to the charging start sequence, a next candidate battery is selected from the multiple batteries for charging until the remaining charging power of the charging device is less than the required charging power of the selected candidate battery.

2. The charging control method according to claim 1, characterized in that: The step of determining the charging start sequence of the plurality of batteries according to the power level of each battery includes: Sorting the power levels of the multiple batteries in descending order; The charging start sequence of the multiple batteries is determined according to the power ranking.

3. The charging control method according to claim 1, characterized in that: Determining a candidate battery from the plurality of batteries according to the charging start sequence includes: Determining the charging status of each battery in turn according to the charging start sequence; A battery with the highest charging priority is selected from the batteries in the uncharged state as the candidate battery, wherein the charging priority is determined based on the charging start sequence of the batteries in the uncharged state.

4. The charging control method according to claim 1, characterized in that: The method further comprises: If it is detected that a new battery is connected to the charging device, the power of all batteries electrically connected to the charging device is obtained; Based on the power levels of all the batteries and the battery slot sequence, updating the charging start sequence, and The next candidate battery is selected from the plurality of batteries according to the updated charging start sequence.

5. The charging control method according to claim 1, characterized in that: The method further comprises: According to the power level of the candidate battery, a corresponding charging interval is calculated.

6. The charging control method according to claim 5, characterized in that: The charging interval includes a constant voltage charging interval, a constant current charging interval and a trickle charging interval, and the method further includes: If the power level of the battery is greater than a first power level threshold and less than a second power level threshold, determining that the charging interval of the battery is a constant current charging interval; If the power level of the battery is greater than or equal to the second power level threshold and less than the third power level threshold, determining that the charging interval of the battery is a constant voltage charging interval; If the power level of the battery is greater than or equal to the third power level threshold and less than the fourth power level threshold, it is determined that the charging interval of the battery is a trickle charging interval.

7. A charging device, characterized in that: The invention comprises a memory, a processor and computer-readable instructions stored in the memory and executable on the processor, wherein the processor implements the charging control method according to any one of claims 1 to 6 when executing the computer-readable instructions.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-readable instructions, and when the computer-readable instructions are executed by a processor, the charging control method according to any one of claims 1 to 6 is implemented.

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