Charging control method and system, electronic equipment and storage medium

Abstract

The invention provides a charging control method and system, electronic equipment and a storage medium. The charging control method comprises the following steps: switching on an external power supply, and acquiring a charging voltage of the external power supply and an initial internal voltage of a target battery in a charging mode; judging whether a difference value between the initial internal voltage and the charging voltage is smaller than a preset voltage; if the difference value between the initial internal voltage and the charging voltage is smaller than the preset voltage, the initial internal voltage is raised to a target internal voltage, and the difference value between the target internal voltage and the charging voltage is at least larger than or equal to the preset voltage; and starting the charging switch device to conduct the charging circuit to charge the target battery. According to the charging control method, the phenomenon of voltage backward flowing can be avoided, and the charging switching device can be normally turned on and maintain a stable working state.

Description

Background Art

[0002] In a battery charging system, a Metal Oxide Semiconductor Field Effect Transistor (MOS tube for short) is widely used to control the on and off of a charging circuit.

[0003] However, during the charging process, when the MOS tube is turned on, the internal voltage of the battery is lower than the external voltage, resulting in voltage backflow. Voltage backflow causes the current to flow in the opposite direction, hindering the normal opening of the MOS tube, and thus affecting the stability and safety of the charging circuit.

[0004] Therefore, how to ensure that the MOS tube can be turned on normally and maintain a stable working state is a problem that needs to be solved urgently.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the invention

[0006] Based on this, the embodiments of the present application provide a charging control method, system, electronic device and storage medium, which can avoid the phenomenon of voltage backflow, so that the charging switch device can be normally turned on and maintain a stable working state.

[0007] According to some embodiments, the present application provides a charging control method for controlling a charging process of an external power source to a target battery, the charging control method comprising the following steps:

[0008] Turning on the external power supply, and in a charging mode, acquiring a charging voltage of the external power supply and an initial internal voltage of the target battery;

[0009] Determining whether a difference between the initial internal voltage and the charging voltage is less than a preset voltage;

[0010] If the difference between the initial internal voltage and the charging voltage is less than a preset voltage, the initial internal voltage is raised to a target internal voltage, and the difference between the target internal voltage and the charging voltage is at least greater than or equal to the preset voltage;

[0011] The charging switch device is turned on to conduct the charging circuit to charge the target battery.

[0012] In some embodiments, the charging control method further includes the following steps:

[0013] If the difference between the initial internal voltage and the charging voltage is greater than or equal to a preset voltage, the charging switch device is turned on to turn on the charging circuit to charge the target battery.

[0014] In some embodiments, the target internal voltage comprises a full charge voltage of the target battery.

[0015] In some embodiments, the charging voltage is 24V, the initial internal voltage is 11V, and the preset voltage is 2V.

[0016] In some embodiments, the charging control method further includes the following steps:

[0017] In the power-off mode, the switch device is turned off, and the current internal voltage of the target battery is adjusted to the initial internal voltage.

[0018] In some embodiments, the charging control method further includes a first charging voltage calibration process and a second charging voltage calibration process performed sequentially;

[0019] In the first charging voltage calibration process, the target battery is charged with a first charging voltage;

[0020] In the second charging voltage calibration process, the target battery is charged with a second charging voltage;

[0021] Wherein, the first charging voltage is lower than the second charging voltage.

[0022] In some embodiments, the charging control method further includes a first charging maximum current calibration process before performing the second charging voltage calibration process;

[0023] In the first charging maximum current calibration process, the target battery is charged with a maximum charging current that matches the first charging voltage.

[0024] In some embodiments, after charging the target battery, the charging control method further includes:

[0025] A first threshold temperature is set according to a first charging gear, and a second threshold temperature is set according to a second charging gear;

[0026] In response to the selection of the charging gear, calling the target threshold temperature corresponding to the selected charging gear;

[0027] In the process of charging the target battery, the charging detection temperature is collected in real time, and it is determined whether the charging detection temperature is greater than or equal to the target threshold temperature; wherein the charging detection temperature at least includes a DC conversion module in the charger;

[0028] When it is determined that the charging detection temperature is greater than or equal to the target threshold temperature, the charger reduces the current charging current until the charging detection temperature is less than the target threshold temperature.

[0029] In some embodiments, after the charger reduces the current charging current, the charging control method further includes:

[0030] Continue to collect the charging detection temperature in real time;

[0031] Determining whether the charging detection temperature is greater than or equal to the target threshold temperature and continues to rise;

[0032] If the charging detection temperature is greater than or equal to the target threshold temperature and continues to rise, the charger stops outputting the charging current to the target battery.

[0033] In some embodiments, after the charging detection temperature is less than the target threshold temperature, the charging control method further includes:

[0034] Continue to collect the charging detection temperature in real time, and determine whether the charging detection temperature is stable;

[0035] If the charging detection temperature is lower than the target threshold temperature and is stable, the charger continues to output the current charging current to the target battery until charging is completed.

[0036] According to some embodiments, the present application further provides a charging control system for controlling a charging process of an external power source to a target battery, the charging control system comprising:

[0037] a voltage detection module configured to obtain a charging voltage of the external power source and an initial internal voltage of the target battery in a charging mode when the external power source is turned on;

[0038] A judging module, used for judging whether the difference between the initial internal voltage and the charging voltage is less than a preset voltage;

[0039] an adjustment module, configured to raise the initial internal voltage to a target internal voltage when the judgment module determines that the difference between the initial internal voltage and the charging voltage is less than a preset voltage, wherein the difference between the target internal voltage and the charging voltage is at least greater than or equal to the preset voltage;

[0040] The control module is used to turn on the charging switch device to conduct the charging circuit and charge the target battery.

[0041] According to some embodiments, the present application also provides an electronic device, including:

[0042] processor;

[0043] a memory storing executable instructions of the processor;

[0044] The processor is configured to execute the steps of the charging control method provided in any of the aforementioned embodiments by executing the executable instructions.

[0045] According to some embodiments, the present application also provides a computer-readable storage medium for storing a program, which, when executed by a processor, implements the steps of the charging control method provided in any of the aforementioned embodiments.

[0046] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application.

[0047] The embodiments of the present application may or at least have the following advantages:

[0048] Before turning on the charging switch device of the charging circuit, the embodiment of the present application pre-judges whether the current initial internal voltage can satisfy the normal opening of the charging switch device. If the difference between the initial internal voltage and the charging voltage is less than the preset voltage, it indicates that the initial internal voltage cannot enable the charging switch device to be turned on normally, and there is a risk of voltage backflow after turning it on. By raising the initial internal voltage to the target internal voltage, the difference between the target internal voltage and the charging voltage is at least greater than or equal to the preset voltage, and then turning on the charging switch device, it can be ensured that when the charging switch device is turned on, the difference between the internal voltage and the charging voltage is at least greater than or equal to the preset voltage, thereby avoiding the phenomenon of voltage backflow, so that the charging switch device can be turned on normally and maintain a stable working state.

[0049] In some embodiments, if the difference between the initial internal voltage and the charging voltage is greater than or equal to the preset voltage, it indicates that the initial internal voltage has satisfied the conditions for the normal opening of the charging switch device. At this time, the charging switch device can be turned on without setting the internal voltage to the full voltage. Raising the internal voltage to the full voltage in advance may cause unnecessary energy loss, especially when the battery is partially charged. This embodiment can avoid unnecessary power consumption by directly turning on the switch device and raising the internal voltage only when necessary, thereby using power more efficiently.

[0050] Other advantages, objectives and features of the present application will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or can be taught from the practice of the present application to some extent. The objectives and other advantages of the present application can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings.

[0052] Figure 1 is a flow chart of a charging control method provided in some embodiments of the present application;

[0053] Figure 2 is a timing diagram of internal voltage and charging switch device in the charging control method provided in some embodiments of the present application;

[0054] Figure 3 is a timing diagram of internal voltage and charging switch device in the charging control method provided in other embodiments of the present application;

[0055] Figure 4 is a flowchart of a charging control method provided in some other embodiments of the present application;

[0056] Figure 5 It is a flow chart of the charging control method provided in some embodiments of the present application after charging of the target battery starts;

[0057] Figure 6 It is a schematic diagram of a flow chart after a charger reduces a current charging current in a charging control method provided in some embodiments of the present application;

[0058] Figure 7 It is a flow chart of a charging control method provided in some embodiments of the present application after the charging detection temperature is less than the target threshold temperature;

[0059] Figure 8 is a schematic diagram of the structure of a charging control system provided by some embodiments of the present application;

[0060] Fig. 9 is a schematic diagram of the structure of an electronic device provided by some embodiments of the present application;

[0061] Fig.10 It is a schematic diagram of the structure of a computer-readable storage medium provided in some embodiments of the present application.

[0062] Description of reference numerals:

[0063] 10. Voltage detection module; 20. Judgment module; 30. Adjustment module; 40. Control module. DETAILED DESCRIPTION

[0064] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0065] The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted. "Or" and "or" in the specification may both mean "and" or "or". Although the terms "upper", "lower", "between", etc. may be used in this specification to describe different exemplary features and elements of the present application, these terms are used herein only for convenience, such as according to the directions of the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional direction of the structure to fall within the scope of the present application. Although "first" or "second" etc. are used in this specification to represent certain features, they are only used to represent the function, and are not used as a limitation on the number and importance of specific features. The numerical values ​​and ranges of the various voltage values ​​and current values ​​​​illustrated in the following description are only examples and are not used as limitations on the scope of protection of this application. The specific numerical values ​​will vary according to the different needs of the electric equipment.

[0066] In addition, the accompanying drawings are only schematic illustrations of the present application and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0067] During the charging process, when the MOS tube is turned on, the internal voltage is lower than the external voltage, which causes voltage backflow. Voltage backflow causes the current to flow in the opposite direction, hindering the normal opening of the MOS tube, and thus affecting the stability and safety of the charging circuit.

[0068] In view of the deficiencies in the related art, the present application provides a charging control method, system, electronic device and storage medium, which can avoid the phenomenon of voltage backflow, so that the charging switch device can be normally turned on and maintain a stable working state. The details will be described in the subsequent embodiments.

[0069] The present application provides a charging control method. The charging control method can be used to control the charging process of an external power source to a target battery. By controlling the charging switch device to turn on, the charging circuit connecting the charging output terminal and the target battery is turned on, so that the external power source charges the target battery.

[0070] In the embodiment of the present application, the external power source may be, for example, an external charger. The charging switch device may include but is not limited to a MOS tube.

[0071] See also Figure 1 In some embodiments, the charging control method may specifically include the following steps:

[0072] S110: Turn on the external power source, and in the charging mode, obtain the charging voltage of the external power source and the initial internal voltage of the target battery.

[0073] In this specification, the charging voltage refers to the voltage when the external power source charges the target battery, and may also be referred to as the "external voltage".

[0074] S120: Determine whether the difference between the initial internal voltage and the charging voltage is less than a preset voltage.

[0075] S131: If the difference between the initial internal voltage and the charging voltage is smaller than the preset voltage, the initial internal voltage is raised to a target internal voltage, and the difference between the target internal voltage and the charging voltage is at least greater than or equal to the preset voltage.

[0076] like Figure 2 As shown, Figure 2 Point A in the middle shows a situation where the initial internal voltage is higher than the charging voltage but less than the preset voltage.

[0077] S140: Turn on the charging switch device to conduct the charging circuit to charge the target battery.

[0078] like Figure 2 As shown, when the rising edge of the charging switch device voltage occurs, it indicates that the charging switch device is turned on.

[0079] In an embodiment of the present application, before turning on the charging switch device of the charging circuit, it is pre-judged whether the current initial internal voltage can satisfy the normal opening of the charging switch device. If the difference between the initial internal voltage and the charging voltage is less than the preset voltage, it indicates that the initial internal voltage cannot enable the charging switch device to be turned on normally, and there is a risk of voltage backflow after turning it on. By raising the initial internal voltage to the target internal voltage, the difference between the target internal voltage and the charging voltage is at least greater than or equal to the preset voltage, and then turning on the charging switch device, it can be ensured that when the charging switch device is turned on, the difference between the internal voltage and the charging voltage is at least greater than or equal to the preset voltage, thereby avoiding the phenomenon of voltage backflow, so that the charging switch device can be turned on normally and maintain a stable working state.

[0080] The embodiment of the present application does not specifically limit the type of target battery. As an example, the target battery may include but is not limited to the storage battery of a fuel vehicle (also called a battery or a starting battery). In the process of charging the battery of a fuel vehicle, by adopting the above-mentioned charging control method, by strictly controlling the difference between the initial internal voltage and the charging voltage within a safe range (that is, the difference is greater than or equal to the preset voltage), it is possible to effectively prevent current backflow when starting the engine or other high-power equipment, avoid the battery from being damaged by current backflow, and help extend the battery life.

[0081] Please continue reading Figure 1 In some embodiments, the charging control method may further include the following steps:

[0082] S132: If the difference between the initial internal voltage and the charging voltage is greater than or equal to the preset voltage, the charging switch device is turned on to turn on the charging circuit to charge the target battery.

[0083] like Figure 3 As shown, Figure 3 Point B in the middle shows a situation where the initial internal voltage is higher than the charging voltage by more than the preset voltage. When the rising edge of the charging switch device voltage occurs, it indicates that the charging switch device is turned on.

[0084] In the process of applying the above-mentioned charging control method, if the difference between the initial internal voltage and the charging voltage is greater than or equal to the preset voltage, for example, if the charging voltage is lower, it indicates that the initial internal voltage has satisfied the conditions for the normal opening of the charging switch device. At this time, the charging switch device can be turned on without setting the internal voltage to the full voltage. Raising the internal voltage to the full voltage in advance may cause unnecessary energy loss, especially when the battery is partially charged. Therefore, the above-mentioned charging control method can avoid unnecessary power consumption by directly turning on the switch device and raising the internal voltage only when necessary, thereby making more efficient use of power.

[0085] In this specification, the initial internal voltage of the target battery refers to the battery voltage of the target battery in an idle mode, and the value of the initial internal voltage can be determined according to the type of the target battery in an actual embodiment.

[0086] Furthermore, the embodiment of the present application does not impose any specific limitation on the voltage value of the target internal voltage, as long as the difference with the charging voltage is greater than or equal to the preset voltage.

[0087] In some embodiments, the target internal voltage may include a full charge voltage of the target battery. In this specification, the full charge voltage of the target battery refers to the value of the battery voltage when the target battery is fully charged, and the value of the full charge voltage can be determined according to the calibration parameters of the target battery in the actual embodiment.

[0088] In some embodiments, the charging voltage may be 24 V. Correspondingly, the initial internal voltage is 11 V, and the preset voltage may be set to 2 V.

[0089] During the charging process of the target battery, the external power source may unexpectedly lose power or stop providing power, also known as a "brownout". This may be due to a power outage, the external power source being unplugged, or the charging output device stopping functioning.

[0090] In some embodiments, the charging control method can also turn off the switch device in the power-off mode, thereby effectively preventing current backflow.

[0091] Furthermore, when power failure is detected, the current internal voltage of the target battery can be adjusted to the initial internal voltage after the switch device is turned off, which helps to ensure that the charging switch device can be turned on safely.

[0092] When the external power source is restored, the internal voltage of the target battery may be higher than the external voltage, especially before the external power source starts working again, because the external voltage is reduced while the current internal voltage is unchanged, resulting in a large internal and external voltage drop. The above charging control method can avoid the charging switch device from being directly turned on when the internal and external voltage drop is too large by modifying the current internal voltage of the target battery back to the initial internal voltage, thereby ensuring that the charging switch device can be turned on safely.

[0093] In the above embodiment, a charger with a charging gear memory function can be used to charge the target battery. For example, the charging gear memory function can be realized by a single-chip microcomputer. When a power outage occurs, the external voltage needs to ensure the power supply of the single-chip microcomputer, so the external voltage is reduced, but the internal voltage does not change, resulting in a large difference between the internal and external voltages when the external power is restored. Using the above charging control method, after detecting a power outage and turning off the switch device, the current internal voltage can be pulled down to the initial internal voltage to prevent the external voltage from being too low when the external power is restored, causing damage to the charging switch device, thereby ensuring that the charging switch device can be turned on normally and maintain a stable working state.

[0094] It is understandable that the charging control method provided in the present application can be applied to a variety of different charging gears. Depending on the charging gear, the initial internal voltage of the target battery and the internal voltage generated during the charging process are also different.

[0095] As an example, the charging mode described in the present application may include a first charging mode and a second charging mode, and the first charging mode and the second charging mode correspond to different charging gears, respectively.

[0096] See also Figure 4 In some embodiments, the charging control method may further include a first charging mode calibration process S210 and a second charging mode calibration process S220 performed sequentially.

[0097] In the first charging mode calibration process S210, the target battery is charged with a first charging voltage. In the second charging mode calibration process S220, the target battery is charged with a second charging voltage, wherein the first charging voltage is less than the second charging voltage.

[0098] In this specification, charging mode calibration refers to calibrating the charging end voltage (i.e., full voltage) in each charging mode. The full voltage needs to be accurately set to ensure that the target battery will not be overcharged (exceeding the safe voltage range). By performing charging mode calibration, it can be ensured that in each charging mode, the target battery can reach the correct full voltage when it is fully charged.

[0099] In the above embodiment, the calibration of the first charging mode with a smaller charging voltage is performed first, and then the calibration of the second charging mode with a larger charging voltage is performed. This can avoid the situation where the internal voltage drops suddenly in a short period of time when switching from a higher charging voltage to a lower charging voltage, resulting in a sudden excessive difference between the internal and external voltages, thereby impacting the charging switch device and causing the charging switch device to burn out.

[0100] In some embodiments, the charging control method may further include a first maximum charging current calibration process S200. The first maximum charging current calibration process S200 is performed before the second charging voltage calibration process S220. Figure 4 As shown, the first charging maximum current calibration process S200 , the first charging mode calibration process S210 , and the second charging mode calibration process S220 may be performed sequentially.

[0101] In the first maximum charging current calibration process S200 , the target battery is charged with a maximum charging current matching a first charging voltage.

[0102] In this specification, maximum current calibration refers to the calibration of the maximum charging current in the current charging mode. For example, the first charging maximum current calibration is to calibrate the corresponding maximum charging current in the first charging mode. Charging current refers to the amount of current received by the target battery during the charging process. The maximum current calibration is to set a safe upper limit of the charging current to avoid overheating or damage to the target battery during the charging process due to excessive charging current. Maximum current calibration helps ensure that the charging process in each charging mode is effective and safe.

[0103] In the above embodiment, since the first maximum charging current calibration process S200 with a smaller charging voltage is performed before the second charging voltage calibration process S220 with a larger charging voltage, the internal voltage will not rise first and then fall, but will always change from small to large, thereby preventing the internal voltage from dropping too much in a short period of time, causing the charging switch device to be impacted and then burned. The change of the internal voltage from small to large can effectively reduce the damage to the charging switch device, thereby extending the service life of the charging switch device.

[0104] It can be understood that the switching device in the charger may include a front-stage MOS and a rear-stage MOS; wherein the front-stage MOS can be used for power conversion and control, and is mainly responsible for the switching operation of the power input part; and the rear-stage MOS is connected to the output end, and is used to transmit electrical energy to the target battery to charge the target battery.

[0105] Considering that when charging the target battery, the front stage MOS generates more heat, resulting in the heat generation location being close to the front stage. In the charging control method provided in some embodiments, such as Figure 5 As shown, after executing step S140 to start charging the target battery, the following steps S151 to S154 are also included:

[0106] S151: Setting a first threshold temperature according to a first charging gear, and setting a second threshold temperature according to a second charging gear.

[0107] S152: In response to the selection of the charging gear, calling the target threshold temperature corresponding to the selected charging gear.

[0108] S153: During the process of charging the target battery, the charging detection temperature is collected in real time, and it is determined whether the charging detection temperature is greater than or equal to the target threshold temperature; wherein the charging detection temperature at least includes a DC conversion module in the charger.

[0109] S154: When it is determined that the charging detection temperature is greater than or equal to the target threshold temperature, the charger reduces the current charging current until the charging detection temperature is less than the target threshold temperature.

[0110] In the above embodiment, the first threshold temperature and the second threshold temperature are set one by one for different first charging gears and second charging gears, so that the corresponding threshold temperature can be called as the target threshold temperature according to the selection of the charging gear.

[0111] It can be understood that the DC conversion module in the charger is a very important source of heat during the charging process. By collecting the charging detection temperature of the DC conversion module in real time, the heating situation of the system can be accurately reflected, and the heat changes inside the system can be captured more timely and accurately than monitoring the temperature of the outer shell or other remote parts of the system. According to the charging detection temperature of the DC conversion module, it is judged whether the charging detection temperature is greater than or equal to the target threshold temperature, and when the charging detection temperature is greater than or equal to the target threshold temperature, the current charging current is reduced until the charging detection temperature is less than the target threshold temperature. Since the charging detection temperature of the DC conversion module can provide more accurate and timely temperature data, more efficient and accurate overheating protection is achieved, thereby avoiding the burning of the switching devices (such as the front-stage MOS) in the DC conversion module, and effectively improving the safety and reliability of the charging process.

[0112] In the above embodiment, the first charging gear can be defined as a charging gear with a lower charging voltage, and the second charging gear can be defined as a charging gear with a higher charging voltage.

[0113] See also Figure 6 In some embodiments, after the charger reduces the current charging current in the aforementioned step S154, the charging control method may further include the following steps S155 to S157:

[0114] S155: Continue to collect charging detection temperature in real time.

[0115] S156: Determine whether the charging detection temperature is greater than or equal to the target threshold temperature and continues to rise.

[0116] S157: If the charging detection temperature is greater than or equal to the target threshold temperature and continues to rise, the charger stops outputting the charging current to the target battery.

[0117] The above embodiment continues to monitor the charging detection temperature change of the DC conversion module after reducing the charging current. In this way, when the charging detection temperature is still greater than or equal to the target threshold temperature and continues to rise, charging can be stopped in time to prevent continuous overheating from damaging the charger and the target battery, thereby providing multiple safety guarantees for the charging process.

[0118] See also Figure 7 In some embodiments, after executing the aforementioned step S154 so that the charging detection temperature is less than the target threshold temperature, the charging control method may further include the following steps S161 to S162:

[0119] S161: continue to collect the charging detection temperature in real time, and determine whether the charging detection temperature is stable;

[0120] S162: If the charging detection temperature is lower than the target threshold temperature and is stable, the charger continues to output the current charging current to the target battery until charging is completed.

[0121] After the charging detection temperature returns to normal, the above embodiment continues to monitor the charging detection temperature of the DC conversion module in real time and determines whether it is stable, ensuring that long-term continuous charging is performed within a safe temperature range, further improving the stability of the charging process.

[0122] It can be understood that stable charging detection temperature means that within a certain time range, the collected charging detection temperature fluctuates within a preset range without a significant upward or downward trend. This application does not specifically limit the standard for defining stable charging detection temperature, and can be adaptively set according to the thermal design characteristics of the system, the heat resistance of the internal components of the charger, and the safety protection requirements of the actual application scenario.

[0123] Based on the same inventive concept, the embodiment of the present application also provides a charging control system for implementing the charging control method involved in the above embodiment. The charging control system can be used to control the charging process of the target battery from the external power source.

[0124] See also Figure 8 The charging control system may specifically include a voltage detection module 10 , a judgment module 20 , an adjustment module 30 and a control module 40 .

[0125] Among them, the voltage detection module 10 is configured to obtain the charging voltage of the external power supply and the initial internal voltage of the target battery in the charging mode when the external power supply is turned on; the judgment module 20 is used to judge whether the difference between the initial internal voltage and the charging voltage is greater than the preset voltage; the adjustment module 30 is used to raise the initial internal voltage to the target internal voltage when the judgment module 20 determines that the difference between the initial internal voltage and the charging voltage is less than the preset voltage, and the difference between the target internal voltage and the charging voltage is at least greater than or equal to the preset voltage; the control module 40 is used to turn on the charging switch device to turn on the charging circuit to charge the target battery.

[0126] The implementation scheme provided by the charging control system to solve the problem is similar to the implementation scheme recorded in the aforementioned charging control method, so the specific limitations in the charging control system embodiment provided below can refer to the limitations of the charging control method above. The technical effects that can be achieved by the aforementioned charging control method can also be achieved by the charging control system, and will not be repeated here.

[0127] Each module in the above charging control system can be implemented in whole or in part by software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute the operations corresponding to each module.

[0128] An embodiment of the present application also provides an electronic device, comprising a processor; a memory, in which executable instructions of the processor are stored; wherein the processor is configured to execute the steps of the charging control method described in the above embodiment by executing the executable instructions.

[0129] In the electronic device provided in the present application, when the program in the memory is executed by the processor, the steps of the charging control method provided in the aforementioned embodiment can be implemented. Therefore, the electronic device can also obtain the technical effects of the aforementioned charging control method, which will not be repeated here.

[0130] Those skilled in the art will appreciate that various aspects of the present application may be implemented as a system, method or program product. Therefore, various aspects of the present application may be specifically implemented in the following forms, namely: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software, which may be collectively referred to as "circuit", "module" or "platform" herein.

[0131] Refer to the following Fig. 9 The electronic device 600 according to this embodiment of the present application is described. Fig. 9 The electronic device 600 shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0132] like Fig. 9 As shown, the electronic device 600 is in the form of a general computing device. The components of the electronic device 600 may include, but are not limited to: at least one processing unit 610, at least one storage unit 620, a bus 630 connecting different system components (including the storage unit 620 and the processing unit 610), a display unit 640, etc.

[0133] The storage unit stores a program code, which can be executed by the processing unit 610, so that the processing unit 610 performs the steps according to various exemplary embodiments of the present application described in the charging control method section of this specification. For example, the processing unit 610 can perform the following steps: Figure 1 and Figure 4 Follow the steps shown in .

[0134] The storage unit 620 may include a readable medium in the form of a volatile storage unit, such as a random access memory unit (RAM) 6201 and / or a cache memory unit 6202 , and may further include a read-only memory unit (ROM) 6203 .

[0135] The storage unit 620 may also include a program / utility 6204 having a set (at least one) of program modules 6205, such program modules 6205 including but not limited to: an operating system, one or more application programs, other program modules and program data, each of which or some combination may include the implementation of a network environment.

[0136] Bus 630 may represent one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0137] The electronic device 600 may also communicate with one or more external devices 700 (e.g., keyboards, pointing devices, Bluetooth devices, etc.), one or more devices that enable a user to interact with the electronic device 600, and / or any device that enables the electronic device 600 to communicate with one or more other computing devices (e.g., routers, modems, etc.). Such communication may be performed through an input / output (I / O) interface 650. Furthermore, the electronic device 600 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) through a network adapter 660. The network adapter 660 may communicate with other modules of the electronic device 600 through the bus 630. It should be understood that although Fig. 9Not shown, other hardware and / or software modules may be used in conjunction with electronic device 600, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0138] An embodiment of the present application also provides a computer-readable storage medium for storing a program, which, when executed by a processor, implements the steps of the charging control method described in the aforementioned embodiment.

[0139] When the program in the computer storage medium provided in the present application is executed by a processor, the steps of the aforementioned charging control method can be implemented. Therefore, the computer storage medium can also obtain the technical effects of the aforementioned charging control method, which will not be repeated here.

[0140] In some possible implementations, various aspects of the present application may also be implemented in the form of a program product, which includes a program code. When the program product is executed on a terminal device, the program code is used to enable the terminal device to execute the steps of various exemplary implementations of the present application described in the above charging control method section of this specification.

[0141] refer to Fig.10 As shown, a program product 800 for implementing the above method according to an embodiment of the present application is described, which can adopt a portable compact disk read-only memory (CD-ROM) and include program code, and can be executed on a terminal device, such as a personal computer. However, the program product of the present application is not limited thereto. In this document, a readable storage medium can be any tangible medium containing or storing a program, which can be used by or in combination with an instruction execution system, an apparatus or a device.

[0142] The program product may use any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0143] The computer readable storage medium may include a data signal propagated in a baseband or as part of a carrier wave, wherein a readable program code is carried. This propagated data signal may take a variety of forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the above. The readable storage medium may also be any readable medium other than a readable storage medium, which may send, propagate, or transmit a program for use by an instruction execution system, an apparatus, or a device or used in combination with it. The program code contained on the readable storage medium may be transmitted with any appropriate medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the above.

[0144] Program code for performing the operations of the present application may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a separate software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., using an Internet service provider to connect through the Internet).

[0145] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features of the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0146] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A charging control method, characterized in that: The charging control method is used to control the charging process of the target battery from the external power source, and comprises the following steps: Turning on the external power supply, and in a charging mode, acquiring a charging voltage of the external power supply and an initial internal voltage of the target battery; Determining whether a difference between the initial internal voltage and the charging voltage is less than a preset voltage; If the difference between the initial internal voltage and the charging voltage is less than a preset voltage, the initial internal voltage is raised to a target internal voltage, and the difference between the target internal voltage and the charging voltage is at least greater than or equal to the preset voltage; The charging switch device is turned on to conduct the charging circuit to charge the target battery.

2. The charging control method according to claim 1, characterized in that: The charging control method further comprises the following steps: If the difference between the initial internal voltage and the charging voltage is greater than or equal to a preset voltage, the charging switch device is turned on to turn on the charging circuit to charge the target battery.

3. The charging control method according to claim 1, characterized in that: The target internal voltage includes a full charge voltage of the target battery.

4. The charging control method according to claim 1, characterized in that: The charging voltage is 24V, the initial internal voltage is 11V, and the preset voltage is 2V.

5. The charging control method according to claim 1, characterized in that: The charging control method further comprises the following steps: In the power-off mode, the switch device is turned off, and the current internal voltage of the target battery is adjusted to the initial internal voltage.

6. The charging control method according to claim 1, characterized in that: The charging control method further includes a first charging voltage calibration process and a second charging voltage calibration process performed sequentially; In the first charging voltage calibration process, the target battery is charged with a first charging voltage; In the second charging voltage calibration process, the target battery is charged with a second charging voltage; Wherein, the first charging voltage is lower than the second charging voltage.

7. The charging control method according to claim 6, characterized in that: The charging control method further includes a first charging maximum current calibration process before performing the second charging voltage calibration process; In the first charging maximum current calibration process, the target battery is charged with a maximum charging current that matches the first charging voltage.

8. The charging control method according to any one of claims 1 to 6, characterized in that: After charging the target battery, the charging control method further includes: A first threshold temperature is set according to a first charging gear, and a second threshold temperature is set according to a second charging gear; In response to the selection of the charging gear, calling the target threshold temperature corresponding to the selected charging gear; In the process of charging the target battery, the charging detection temperature is collected in real time, and it is determined whether the charging detection temperature is greater than or equal to the target threshold temperature; wherein the charging detection temperature at least includes a DC conversion module in the charger; When it is determined that the charging detection temperature is greater than or equal to the target threshold temperature, the charger reduces the current charging current until the charging detection temperature is less than the target threshold temperature.

9. The charging control method according to claim 8, characterized in that: After the charger reduces the current charging current, the charging control method further includes: Continue to collect the charging detection temperature in real time; Determining whether the charging detection temperature is greater than or equal to the target threshold temperature and continues to rise; If the charging detection temperature is greater than or equal to the target threshold temperature and continues to rise, the charger stops outputting the charging current to the target battery.

10. The charging control method according to claim 8, characterized in that: After the charging detection temperature is less than the target threshold temperature, the charging control method further includes: Continue to collect the charging detection temperature in real time, and determine whether the charging detection temperature is stable; If the charging detection temperature is lower than the target threshold temperature and is stable, the charger continues to output the current charging current to the target battery until charging is completed.

11. A charging control system, characterized in that: Used to control the charging process of the target battery from the external power source, the charging control system includes: a voltage detection module configured to obtain a charging voltage of the external power source and an initial internal voltage of the target battery in a charging mode when the external power source is turned on; A judging module, used for judging whether the difference between the initial internal voltage and the charging voltage is less than a preset voltage; an adjustment module, configured to raise the initial internal voltage to a target internal voltage when the judgment module determines that the difference between the initial internal voltage and the charging voltage is less than a preset voltage, wherein the difference between the target internal voltage and the charging voltage is at least greater than or equal to the preset voltage; The control module is used to turn on the charging switch device to conduct the charging circuit and charge the target battery.

12. An electronic device, characterized in that: include: processor; a memory storing executable instructions of the processor; The processor is configured to execute the steps of the charging control method according to any one of claims 1 to 11 by executing the executable instructions.

13. A computer-readable storage medium for storing a program, characterized in that: When the program is executed by a processor, the steps of the charging control method according to any one of claims 1 to 12 are implemented.

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