Digital-switching-power-supply control method and apparatus, and system and device

Abstract

Provided in the embodiments of the present application are a digital-switching-power-supply control method and apparatus, and a system and a device. The method comprises: a digital-switching-power-supply control apparatus receiving a feedforward response signal sent by a battery module; on the basis of battery parameter information in the feedforward response signal, determining a target power supply operating mode corresponding to the battery module; and finally, on the basis of the target power supply operating mode, supplying power to the battery module. In the embodiments of the present application, a feedforward response signal sent by a battery module is received, such that a digital-switching-power-supply control apparatus can quickly switch an operating mode, thereby saving on the time and computing power required by a control system to perform automatic adjustment, and reducing the requirements for repeated calibration of parameters. Finally, the digital-switching-power-supply control apparatus determines a target power supply operating mode on the basis of battery parameter information corresponding to the feedforward response signal, so as to supply power to the battery module. The embodiments of the present application achieve a simper algorithm implementation and better universality, thereby facilitating large-scale development.

Description

Digital switching power supply control method, device, system and equipment

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on January 26, 2024, with application number CN202410116545.2 and application name “Digital switching power supply control method, device, system and equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of power supply technology, and in particular to a digital switching power supply control method, device, system and equipment. Background Art

[0003] A switching power supply utilizes modern power electronics technology to control the on / off time ratio of a switching transistor to maintain a stable output voltage. A switching power supply typically consists of a pulse-width modulation control IC and a MOSFET. The current new energy sector involves extensive switching power supply design and development to meet diverse power supply requirements. Using analog circuits to control switching power supplies results in a narrow adjustable range, large circuit size, and high cost. Therefore, digital circuits (i.e., digital switching power supplies) are often used to control the on / off switching of the switching transistor.

[0004] Battery module loads generally fall into two categories: resistive and capacitive. Due to the properties of the chemical materials within the battery module, the module cannot be charged at low temperatures. Therefore, before constant-current charging of the battery module, a resistive load must be connected to heat the module to a chargeable state using constant-voltage charging. Prior art systems require designing software loop parameters to balance constant-voltage and constant-current charging modes, thereby providing the current and voltage corresponding to the charging mode.

[0005] However, in the prior art, when balancing the two charging modes, the digital switching power supply requires targeted design of software loop parameters. The parameters in different modes are specific and have poor versatility, which is not conducive to large-scale development.

[0006] It should be pointed out that the information disclosed in the background technology section of this application is only intended to deepen the understanding of the general background technology of this application, and should not be regarded as an admission or any form of implication that the information constitutes prior art already known to those skilled in the art.

[0007] Summary of the Invention

[0008] In view of this, the present application provides a digital switching power supply control method, device, system and equipment to help solve the problem in the prior art that in order to balance the two charging modes, the digital switching power supply needs to design software loop parameters in a targeted manner, resulting in the parameters in different modes being specific and having poor versatility, which is not conducive to large-scale development.

[0009] In a first aspect, an embodiment of the present application provides a digital switching power supply control method, comprising:

[0010] receiving a feedforward response signal sent by the battery module, wherein the feedforward response signal includes battery parameter information associated with a power supply operating mode;

[0011] determining a target power supply operating mode corresponding to the battery module according to the battery parameter information;

[0012] The battery module is powered according to the target power supply operating mode.

[0013] In an embodiment of the present application, by receiving a feedforward response signal from a battery module, a digital switching power supply control device can quickly switch operating modes, saving time and computing power for automatic adjustment of the control system and reducing the need for repeated parameter calibration. Finally, the digital switching power supply control device determines the operating mode of the target power supply based on the battery parameter information corresponding to the feedforward response signal, thereby providing power to the battery module. The algorithm implementation method of the embodiment of the present application is simpler, has better versatility, and is conducive to large-scale development.

[0014] In a possible implementation, the battery module includes a heating unit and a battery unit, and supplying power to the battery module according to the target power supply operating mode includes:

[0015] If the target power supply operating mode is a constant voltage mode, powering the heating unit according to the constant voltage mode so that the heating unit heats the battery module;

[0016] If the target power supply operating mode is a first constant current mode, power is supplied to the heating unit and the battery unit according to the first constant current mode, so that the heating unit heats the battery module and the battery unit is charged;

[0017] If the target power supply operation mode is the second constant current mode, power is supplied to the battery unit according to the second constant current mode, so that the battery unit is charged.

[0018] In the embodiment of the present application, the corresponding target power operating mode is determined by obtaining the battery temperature and presetting the correspondence between the temperature range and the power operating mode. The corresponding algorithm design is simpler, more versatile, and convenient for large-scale development.

[0019] In a possible implementation, the battery parameter information includes battery temperature.

[0020] In the embodiment of the present application, the battery module is powered according to the corresponding working mode of the battery module, which saves the time and computing power of the control system's adaptive adjustment and improves the charging efficiency.

[0021] In a possible implementation, determining a target power supply operating mode corresponding to the battery module according to the battery parameter information includes:

[0022] When the battery temperature is within a first preset temperature range, determining that the target power supply operation mode corresponding to the battery module is constant voltage power supply;

[0023] When the battery temperature is within a second preset temperature range, determining that the target power supply operation mode corresponding to the battery module is a first constant current power supply;

[0024] When the battery temperature is within a third preset temperature range, determining that the target power supply operation mode corresponding to the battery module is a second constant current power supply;

[0025] The maximum value in the first preset temperature range is less than the minimum value in the second preset temperature range, and the maximum value in the second preset temperature range is less than the minimum value in the third preset temperature range.

[0026] In the embodiment of the present application, the corresponding target power operating mode is determined by obtaining the battery temperature and presetting the correspondence between the temperature range and the power operating mode. The corresponding algorithm design is simpler, more versatile, and convenient for large-scale development.

[0027] In a possible implementation, when the battery temperature switches within different preset temperature ranges, the battery module is restarted.

[0028] In an embodiment of the present application, when switching modes, the battery module can be restarted to prevent fluctuations in charging voltage or charging current due to switching of the power supply working mode, thereby improving the stability of charging the battery module, extending the service life of related devices, and improving charging efficiency.

[0029] In a possible implementation, restarting the battery module when the battery temperature switches within different preset temperature ranges includes:

[0030] When the battery temperature switches from the first preset temperature range to the second preset temperature range, restarting the battery module;

[0031] When the battery temperature switches from the third preset temperature range to the second preset temperature range, restarting the battery module;

[0032] When the battery temperature switches from the second preset temperature range to the first preset temperature range, the battery module is restarted.

[0033] In an embodiment of the present application, when the charging voltage or charging current fluctuates greatly due to mode switching, the battery module is restarted, which effectively prevents the fluctuation of the charging voltage or charging current caused by the switching of the power supply working mode, improves the stability of charging the battery module, extends the service life of related devices, and improves the charging efficiency.

[0034] In a possible implementation, supplying power to the battery module according to the target power supply operating mode includes:

[0035] Determining a target charging value execution diagram according to the target power supply operating mode;

[0036] The battery module is powered according to the target charging value execution diagram.

[0037] In an embodiment of the present application, by determining the corresponding charging value execution diagram according to the target power supply working mode, and then powering the battery module according to the charging value execution diagram, it is beneficial to adjust the charging rate in real time according to the different power levels of the battery module, thereby ensuring that the battery does not deposit lithium during the entire charging process and the charging rate is faster.

[0038] In a second aspect, an embodiment of the present application provides a digital switching power supply control device, comprising:

[0039] a power monitoring module, configured to receive a feedforward response signal sent by the battery module, wherein the feedforward response signal includes battery parameter information associated with the power operating mode;

[0040] The power monitoring module is further configured to determine a target power operating mode corresponding to the battery module based on the battery parameter information;

[0041] A control output module is used to supply power to the battery module according to the target power supply working mode.

[0042] In a third aspect, an embodiment of the present application provides a charging system, including:

[0043] Battery modules;

[0044] The digital switching power supply control device according to any one of the first aspects;

[0045] Wherein, the battery module is electrically connected to the digital switching power supply control device.

[0046] In a fourth aspect, an embodiment of the present application provides an electronic device, including:

[0047] processor;

[0048] Memory;

[0049] and a computer program, wherein the computer program is stored in the memory, and the computer program includes instructions, which, when executed by the processor, enable the electronic device to perform any one of the methods described in the first aspect.

[0050] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored program, wherein when the program is running, the device where the computer-readable storage medium is located is controlled to execute any one of the methods described in the first aspect.

[0051] It is understandable that the digital switching power supply control device provided in the second aspect, the charging system provided in the third aspect, the electronic device provided in the fourth aspect, and the computer-readable storage medium provided in the fifth aspect are all used to perform the method provided in this application. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects of the corresponding methods and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0053] FIG1 is a schematic diagram of an application scenario provided in an embodiment of the present application.

[0054] FIG2 is a flow chart of a digital switching power supply control method provided in an embodiment of the present application.

[0055] FIG3 is a schematic diagram of a power supply working mode switching provided in an embodiment of the application.

[0056] FIG4 is a schematic diagram of a method for adjusting the input voltage of a heating module provided by the related art.

[0057] FIG5 is a schematic diagram of input current regulation of a charging module provided by related art.

[0058] FIG6 is a digital switching power supply control device provided in an embodiment of the application.

[0059] FIG7 is a schematic structural diagram of a charging system provided in an embodiment of the present application.

[0060] FIG8 is a schematic structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0061] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0062] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0063] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0064] It should be understood that the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.

[0065] A switching power supply utilizes modern power electronics technology to control the on / off time ratio of a switching transistor to maintain a stable output voltage. A switching power supply typically consists of a pulse-width modulation control IC and a MOSFET. The current new energy sector involves extensive switching power supply design and development to meet diverse power supply requirements. Using analog circuits to control switching power supplies results in a narrow adjustable range, large circuit size, and high cost. Therefore, digital circuits (i.e., digital switching power supplies) are often used to control the on / off switching of the switching transistor.

[0066] To facilitate understanding, a specific application scenario is first exemplified below.

[0067] Referring to Figure 1, a schematic diagram of an application scenario provided by an embodiment of the present application is shown. As shown in Figure 1, the application scenario includes: a charging pile 101 and an energy storage device 102, wherein the charging pile 101 and the energy storage device 102 are electrically connected. The energy storage device 102 specifically includes: a digital switching power supply 1021 and a battery module 1022, wherein the charging pile 101 is electrically connected to the battery module 1022 via the digital switching power supply 1021.

[0068] Specifically, when the charging pile 101 and the energy storage device 102 are connected, the digital switching power supply 1021 in the energy storage device 102 will adjust the voltage and current output by the charging pile 101 accordingly, and input the adjusted voltage and current into the battery module 1022, thereby completing the charging of the energy storage device.

[0069] In addition, the charging pile 101 and energy storage device 102 shown in Figure 1 are merely exemplary descriptions and should not be construed as limiting the scope of protection of this application. For example, the digital switching power supply 1021 in the energy storage device 102 may also be located in the charging pile 101, or on the connection line between the charging pile 101 and the energy storage device 102. The charging pile 101 may also be other charging devices, such as a mains interface or any other similar device such as other energy storage devices; the battery module 1022 includes, but is not limited to, lithium batteries or lead-acid batteries.

[0070] In practical applications, battery modules generally fall into two categories of loads: resistive loads and capacitive loads. Due to the properties of the chemical materials within the battery module, the battery module cannot be charged at low temperatures. Therefore, before constant-current charging of the battery module, a resistive load must be connected to heat the battery module to a charging state using constant-voltage charging. In existing technologies, for balanced constant-voltage charging and constant-current charging, corresponding software loop parameters must be designed to provide the current and voltage corresponding to the charging mode.

[0071] However, in the prior art, in order to balance the two charging modes, the digital switching power supply requires targeted design of software loop parameters. The parameters in different modes are specific and have poor versatility, which is not conducive to large-scale development.

[0072] In response to the above problems, in an embodiment of the present application, by receiving the feedforward response signal sent by the battery module, the digital switching power supply control device can quickly switch the operating mode, saving the time and computing power of the control system's automatic adjustment, and reducing the need for repeated parameter calibration. Finally, the digital switching power supply control device determines the operating mode of the target power supply based on the battery parameter information corresponding to the feedforward response signal, thereby providing power to the battery module. The software implementation method of the embodiment of the present application is simpler, has better versatility, and is conducive to large-scale development. It is described in detail below in conjunction with the specific implementation method.

[0073] 2 is a flow chart of a digital switching power supply control method provided in an embodiment of the present application. The method can be applied to the application scenario shown in FIG1 , and as shown in FIG2 , it mainly includes the following steps.

[0074] Step S201: receiving a feedforward response signal sent by a battery module.

[0075] In an embodiment of the present application, a digital switching power supply control device receives a feedforward response signal sent by a battery module, wherein the feedforward response signal includes battery parameter information associated with the power supply operating mode. Specifically, before preparing to start charging, the battery module collects battery parameters associated with the power supply operating mode in the battery module and generates battery parameter information. The battery module then sends the generated battery parameter information associated with the power supply operating mode to the digital switching power supply control device. It is understandable that when the digital switching power supply control device receives the feedforward response signal, the battery module has not yet been charged.

[0076] It should be pointed out that the digital switching power supply control device can be the control device of the digital switching power supply in the application scenario described in Figure 1, or the digital switching power supply control device is the digital switching power supply in the application scenario described in Figure 1. Those skilled in the art can make adjustments according to actual needs, and this application does not impose specific restrictions on this.

[0077] In the embodiments of the present application, the "power supply operating mode" mentioned above includes a constant voltage mode and a constant current mode. It is understood that the constant voltage mode is used to represent charging the battery module at a constant voltage; the constant current mode is used to represent charging the battery module at a constant current.

[0078] In actual applications, when the battery temperature is low, the battery module may not be able to be charged, so the battery module needs to be heated. In one possible implementation, the battery module includes a heating unit and a battery cell. The battery module can be heated to a suitable temperature by using the heating unit in the battery module. When charging the battery cell, since the voltage at the receiving end of the battery cell cannot jump, a constant current charging method is adopted; when powering the heating unit, since the battery cell is connected in parallel with the heating unit and the voltage at the receiving end of the battery cell cannot jump, a constant voltage charging method is usually adopted for the heating unit. It can be understood that when the battery temperature is low, the heating unit in the battery module needs to be used to heat the battery, so the battery module is powered by constant voltage; when the battery temperature is appropriate, the battery cells in the battery module need to be charged, so the battery is powered by constant current.

[0079] It is understandable that when the battery unit can be charged but the temperature of the battery module is not the optimal charging temperature, the battery module also needs to be powered by a constant current because the voltage at the receiving end of the battery unit cannot jump.

[0080] The heating unit described above functions to heat the battery, and the battery cell functions to store energy. Specifically, in one possible implementation, the heating unit may be a PCT heater, and the battery cell may be a power battery. Of course, those skilled in the art may adjust the heating unit and battery cell according to actual needs. For example, the heating unit may be a thin-film heater, and the battery cell may be a supercapacitor, etc. This application does not impose any specific limitations on this.

[0081] In one possible implementation, because the temperature of the battery module affects the power supply operating mode, the battery parameter information described above includes the battery temperature. Of course, those skilled in the art may also obtain other battery parameters to indicate whether the battery module can charge normally at a certain temperature, as needed, and this application does not impose any specific limitations on this.

[0082] In a possible implementation, the battery module includes a temperature detection device. Specifically, the battery module uses the temperature detection device to collect the temperature of the battery module, and then generates battery parameter information including the battery temperature.

[0083] Step S202: Determine a target power supply operating mode corresponding to the battery module according to the battery parameter information.

[0084] In an embodiment of the present application, when the digital switching power supply control device receives a feedforward response signal, it determines whether the target power supply operating mode corresponding to the battery module is constant voltage power supply or constant current power supply based on the battery parameter information in the feedforward response signal.

[0085] In actual applications, the digital switching power supply control device pre-stores the corresponding relationship between battery parameter information and power supply operating modes. It can be understood that the target power supply operating mode mentioned above is the power supply operating mode determined based on the battery parameter information and the corresponding relationship between the battery parameter information and the power supply operating mode.

[0086] In one possible implementation, when the battery parameter information is the battery temperature, power supply operating modes corresponding to different temperature ranges are preset in the digital switching power supply control device. Specifically, in an embodiment of the present application, when the battery temperature is within a first preset temperature range, the target power supply operating mode corresponding to the battery module is determined to be constant voltage power supply; when the battery temperature is within a second preset temperature range, the target power supply operating mode corresponding to the battery module is determined to be a first constant current power supply; and when the battery temperature is within a third preset temperature range, the target power supply operating mode corresponding to the battery module is determined to be a second constant current power supply. It is understood that the supply current corresponding to the first constant current power supply and the second constant current power supply are not the same.

[0087] It can be understood that the first preset temperature range described above is used to indicate that the battery cells in the battery module cannot be charged at this time. Therefore, when the battery temperature corresponding to the battery module is within the first preset temperature range, constant voltage power supply is required, that is, the target power supply working mode is constant voltage power supply; the second preset temperature range described above is used to indicate that the battery cells in the battery module can be charged at this time, but it is not the optimal temperature for charging the battery module. While charging the battery cells, the heating unit also needs to be powered. Therefore, when the battery temperature corresponding to the battery module is within the second preset temperature range, constant current power supply is required, that is, the target power supply working mode is the first constant current power supply; the third preset temperature range described above is used to indicate that the battery cells in the battery module can be charged at this time, and this temperature is the optimal temperature for charging the battery module. Therefore, when the battery temperature corresponding to the battery module is within the third preset temperature range, constant current power supply is required, that is, the target power supply working mode is the second constant current power supply.

[0088] Because power cannot be guaranteed to the battery cells in the battery module when the temperature is too low, the temperature within the first preset temperature range is lower than the temperature within the second preset temperature range, which is lower than the temperature within the third preset temperature range. It can be understood that the maximum value within the first preset temperature range is lower than the minimum value within the second preset temperature range, and the maximum value within the second preset temperature range is lower than the minimum value within the third preset temperature range.

[0089] Exemplarily, when the first preset temperature range is (-∞, 0℃], the second preset temperature range is (0℃, 8℃], and the third preset temperature range is (8℃, +∞). When the battery temperature corresponding to the battery parameter information is -5℃, the battery temperature is within the first preset temperature range, and the target power supply working mode corresponding to the battery module can be determined to be constant voltage power supply; when the battery temperature corresponding to the battery parameter information is 5℃, the battery temperature is within the second preset temperature range, and the target power supply working mode corresponding to the battery module can be determined to be the first constant current power supply; when the battery temperature corresponding to the battery parameter information is 10℃, the battery temperature is within the third preset temperature range, and the target power supply working mode corresponding to the battery module can be determined to be the second constant current power supply.

[0090] In the embodiment of the present application, the corresponding target power operating mode is determined by obtaining the battery temperature and presetting the correspondence between the temperature range and the power operating mode. The corresponding algorithm design is simpler, more versatile, and convenient for large-scale development.

[0091] Step S203: supplying power to the battery module according to the target power supply working mode.

[0092] In the embodiment of the present application, after the digital switching power supply control device determines the target power supply operating mode, it supplies power to the battery module according to the target power supply operating mode. Specifically, when the target power supply operating mode is determined to be constant voltage mode, the digital switching power supply control device controls the supply of constant voltage power to the battery module; when the target power supply operating mode is determined to be constant current mode, the digital switching power supply control device controls the supply of constant current power to the battery module.

[0093] In one possible implementation, when the target power supply operating mode is determined to be a constant voltage mode, the digital switching power supply control device controls the disconnection of the circuit connections between the battery cells in the battery module and supplies power to the heating unit according to the constant voltage mode, so that the heating unit heats the battery module. Of course, due to the low temperature of the battery module at this time, the digital switching power supply control device is unable to supply power to the battery cells in the battery module. Those skilled in the art may also design the digital switching power supply control device to not disconnect the circuit connections between the battery cells in the battery module, based on actual needs. This application does not impose specific limitations on this.

[0094] Similarly, when the target power supply operating mode is determined to be constant current mode, the digital switching power supply control device controls the disconnection of the circuit connection of the heating unit in the battery module, and supplies power to the battery unit according to the constant current mode, so that the battery unit can store energy. Of course, since the charging efficiency of the battery module increases with the increase of temperature within a certain range, those skilled in the art can also design the digital switching power supply control device to not disconnect the circuit connection of the battery unit in the battery module before the battery temperature reaches a preset value according to actual needs. This application does not impose specific restrictions on this.

[0095] Specifically, in one possible implementation, if the target power supply operating mode is a constant voltage mode, the heating unit is powered according to the constant voltage mode, so that the heating unit heats the battery module; if the target power supply operating mode is a first constant current mode, the heating unit and the battery unit are powered according to the first constant current mode, so that the heating unit heats the battery module and the battery unit is charged; if the target power supply operating mode is a second constant current mode, the battery unit is powered according to the second constant current mode, so that the battery unit is charged.

[0096] In one possible implementation, a charging value execution map (i.e., a charging MAP) corresponding to the charging mode can be pre-set in the digital switching power supply control device. Based on the real-time feedback of the voltage or current of the battery module, the voltage corresponding to the constant voltage output or the current corresponding to the constant current output can be adjusted. Of course, the charging value execution map can also be set in other devices, such as battery modules, and this application does not impose specific limitations on this.

[0097] Specifically, in an embodiment of the present application, the digital switching power supply control device determines the target charging value based on the target power supply operating mode and the corresponding relationship between the power supply operating mode and the charging value execution diagram. The digital switching power supply control device then charges the battery module according to the target charging value execution diagram. It is understood that the digital switching power supply control device will adjust the voltage value corresponding to the constant voltage mode or the current value corresponding to the constant current mode in real time during the process of charging the battery module according to the target charging value execution diagram. This allows the digital switching power supply control device to better charge the battery module.

[0098] For example, when the power supply operating mode is the constant voltage mode, the corresponding charging value execution diagram is the charging value execution diagram A; when the power supply operating mode is the first constant current mode, the corresponding charging value execution diagram is the charging value execution diagram B; and when the power supply operating mode is the second constant current mode, the corresponding charging value execution diagram is the charging value execution diagram C. When the target power supply operating mode determined by the digital switching power supply control device is the first constant current charging, the charging value execution diagram can be determined to be the charging value execution diagram B based on the correspondence between the power supply operating mode and the charging value execution diagram; similarly, when the target power supply operating mode determined by the digital switching power supply control device is the constant voltage charging, the charging value execution diagram can be determined to be the charging value execution diagram A based on the correspondence between the power supply operating mode and the charging value execution diagram; and so on. For the sake of brevity, this application does not elaborate on this.

[0099] Of course, those skilled in the art may also make relevant adjustments to the charging value execution diagram according to actual needs, and then adjust the correspondence between the power supply working mode and the charging value execution diagram. For example, the charging value execution diagram B and the charging value execution diagram C may be merged into the charging value execution diagram D. When the target power supply working mode determined by the digital switching power supply control device is constant current charging (i.e., the first constant current charging or the second constant current charging), the determined charging value execution diagram is the charging value execution diagram D. This application does not impose any specific restrictions on this.

[0100] Among them, the above-mentioned "the digital switching power supply control device adjusts the voltage value corresponding to the constant voltage mode, or the current value corresponding to the constant current mode in real time during the charging process of the battery module according to the target charging value execution diagram" specifically includes: the digital switching power supply control device determines the corresponding charging value execution diagram according to the target power supply working mode; the digital switching power supply control device determines the corresponding voltage or current in the charging value execution diagram according to the corresponding battery parameters in the battery module, such as battery voltage or battery current; the digital switching power supply control device charges the battery module according to the determined voltage or current.

[0101] For the battery module, its safe and fast charging range is fixed. As the battery module power increases, the battery module's charging capacity will decrease accordingly. If the charging rate can be flexibly adjusted in real time according to the battery module power, it can be ensured that the battery does not deposit lithium during the entire charging process and the charging rate is faster. In the embodiment of the present application, by determining the corresponding charging value execution diagram according to the target power supply operating mode, and then supplying power to the battery module according to the charging value execution diagram, it is beneficial to adjust the charging rate in real time according to the different power levels of the battery module, thereby ensuring that the battery does not deposit lithium during the entire charging process and the charging rate is faster.

[0102] It should be pointed out that the heating unit is also powered according to the corresponding charging value execution diagram in the constant voltage charging mode. This is because the corresponding resistance value of the heating unit changes as the temperature rises. By powering the heating unit according to the charging value execution diagram, the heating unit can be guaranteed to generate heat stably.

[0103] In an embodiment of the present application, by receiving a feedforward response signal from a battery module, the digital switching power supply control device can quickly switch operating modes, saving time and computing power for automatic adjustment of the control system and reducing the need for repeated parameter calibration. Finally, the digital switching power supply control device determines the operating mode of the target power supply based on the battery parameter information corresponding to the feedforward response signal, thereby providing power to the battery module. The software implementation of the embodiment of the present application is simpler, improves the robustness of the digital switching power supply-related system, and is conducive to large-scale development.

[0104] In actual applications, when the battery temperature corresponding to the battery module is within the first preset temperature range, that is, the initial power supply operating mode is the constant voltage mode, the digital switching power supply control device will power the heating unit through the constant voltage mode, so that the heating unit heats the battery module. As the heating module generates heat, the battery temperature corresponding to the battery module will continue to rise. When the battery temperature reaches the second preset temperature range, the power supply operating mode changes to the first constant current mode. At this time, when the power supply operating mode changes from the constant voltage mode to the first constant current mode, the charging voltage or charging current may fluctuate due to the switching of the power supply operating mode. To address the above problem, when switching modes, the battery module can be restarted to prevent fluctuations in the charging voltage or charging current due to the switching of the power supply operating mode.

[0105] It should be pointed out that the "mode switching" mentioned above does not only mean that the power supply working mode changes from the constant voltage mode to the first constant current mode, but also means that the power supply working mode changes from the first constant current mode to the constant voltage mode and other power supply working modes. For the sake of simplicity, this application will not go into details here.

[0106] In an embodiment of the present application, when the battery temperature switches between different preset temperature ranges, the battery module is restarted. Specifically, when the battery temperature switches between different preset temperature ranges, the power supply to the battery module is first reduced, and then the battery module is shut down. After determining the charge value execution map corresponding to the power supply operating mode based on the changed battery temperature, the battery module is then restarted and power is supplied to the battery module according to the charge value execution map.

[0107] For example, when the battery temperature changes from a first preset temperature range to a second preset temperature range, the supply voltage of the battery module is first reduced, and then the power supply to the battery module is turned off. After determining a charge value execution diagram corresponding to the first constant current mode based on the changed battery temperature, the battery module is turned on and constant current power is supplied to the battery module according to the corresponding charge value execution diagram.

[0108] In one possible implementation, when the power supply operating mode changes from the first constant current mode to the second constant current mode, the digital switching power supply control device only needs to control the disconnection of the heating unit in the battery power supply. Because this process does not cause fluctuations in charging voltage or charging current due to the switching of the power supply operating mode, the battery module does not need to be restarted when the power supply operating mode changes from the first constant current mode to the second constant current mode.

[0109] For clarity, see Figure 3, which is a schematic diagram of a power supply operating mode switching provided in an embodiment of the application. As shown in Figure 3, when the battery temperature switches from the first preset temperature range to the second preset temperature range, that is, when the power supply operating mode switches from the constant voltage mode to the first constant current mode, the battery module is restarted; when the battery temperature switches from the second preset temperature range to the third preset temperature range, that is, when the power supply operating mode switches from the first constant current mode to the second constant current mode, the battery module does not need to be restarted; when the battery temperature switches from the third preset temperature range to the second preset temperature range, that is, when the power supply operating mode switches from the second constant current mode to the first constant current mode, the battery module is restarted; when the battery temperature switches from the second preset temperature range to the first preset temperature range, that is, when the power supply operating mode switches from the first constant current mode to the constant voltage mode, the battery module is restarted.

[0110] In an embodiment of the present application, when switching modes, by restarting the battery module, fluctuations in charging voltage or charging current caused by switching of the power supply working mode can be effectively prevented, thereby improving the stability of charging the battery module and extending the service life of related devices.

[0111] It should be pointed out that in actual applications, since resistive loads, i.e., heating modules, are susceptible to external disturbances, capacitive loads, i.e., battery modules, have a stronger ability to absorb external disturbance signals, corresponding charging value execution diagrams are required for loads with different characteristics to adjust the corresponding loop parameters and thus adjust the output voltage or current.

[0112] For easier understanding, see Figure 4, which is a schematic diagram of a related art method for adjusting the input voltage of a heating module. As shown in Figure 4, the ordinate represents the voltage value, and the abscissa represents time. The voltage-time coordinate system also includes a set voltage value curve 401 and a measured voltage value curve 402. At time t1, when the measured voltage value needs to be adjusted to the set voltage value, the corresponding adjustment between time t1 and t2 may cause voltage oscillation in the charging system. This may result in the difference between the set voltage value and the measured voltage value being the same at time t1 and time t2. See Figure 5, which is a schematic diagram of a related art method for adjusting the input current of a charging module. As shown in Figure 5, the ordinate represents the current value, and the abscissa represents time. The current-time coordinate system also includes a set current value curve 501 and a measured current value curve 502. At time t3, when the measured current value needs to be adjusted to the set current value, the corresponding adjustment between time t3 and t4 may cause current decay oscillation in the charging system. It is understandable that the difference between the set current value and the measured current value at time t3 may be greater than the difference between the set current value and the measured current value at time t4. It should be noted that Figures 4 and 5 are only exemplary descriptions and are not specifically limited in this application.

[0113] Therefore, for loads with different characteristics, a feedforward response signal input is required to determine the corresponding charging value execution diagram under different load conditions to adjust the corresponding loop parameters and thus adjust the output voltage or current.

[0114] Corresponding to the above method embodiments, the present application also provides a digital switching power supply control device.

[0115] Referring to Figure 6 , a digital switching power supply control device according to an embodiment of the present application is shown. As shown in Figure 6 , the digital switching power supply control device 600 includes a power monitoring module 601 and a control output module 602, wherein the power monitoring module 601 and the control output module 602 are electrically connected. Specifically, the power monitoring module 601 is configured to receive a feedforward response signal from a battery module and, based on the battery parameter information, determine a target power supply operating mode corresponding to the battery module. The control output module 602 is configured to supply power to the battery module according to the target power supply operating mode.

[0116] The specific contents of the embodiments of this application can be found in the description of the above method embodiments. For the sake of brevity, they will not be described in detail.

[0117] In one possible implementation, the control output module is specifically used to, if the target power supply operating mode is a constant voltage mode, supply power to the heating unit according to the constant voltage mode, so that the heating unit heats the battery module; if the target power supply operating mode is a first constant current mode, supply power to the heating unit and the battery unit according to the first constant current mode, so that the heating unit heats the battery module and the battery unit charges; if the target power supply operating mode is a second constant current mode, supply power to the battery unit according to the second constant current mode, so that the battery unit charges.

[0118] The specific contents involved in the embodiments of this application can be found in the description of the above method embodiments. For the sake of brevity, they will not be repeated here.

[0119] In one possible implementation, the power supply monitoring module is specifically used to, when the battery temperature is within a first preset temperature range, determine that the target power supply operating mode corresponding to the battery module is constant voltage power supply; when the battery temperature is within a second preset temperature range, determine that the target power supply operating mode corresponding to the battery module is a first constant current power supply; when the battery temperature is within a third preset temperature range, determine that the target power supply operating mode corresponding to the battery module is a second constant current power supply.

[0120] The specific contents involved in the embodiments of this application can be found in the description of the above method embodiments. For the sake of brevity, they will not be repeated here.

[0121] In one possible implementation, the control output module is further configured to restart the battery module when the battery temperature switches between different preset temperature ranges. Specifically, the control output module is configured to restart the battery module when the battery temperature switches from a first preset temperature range to a second preset temperature range; restart the battery module when the battery temperature switches from a third preset temperature range to the second preset temperature range; and restart the battery module when the battery temperature switches from the second preset temperature range to the first preset temperature range.

[0122] The specific contents involved in the embodiments of this application can be found in the description of the above method embodiments. For the sake of brevity, they will not be repeated here.

[0123] Corresponding to the above method embodiments, the present application also provides a charging system.

[0124] Referring to Figure 7 , which is a schematic diagram of the structure of a charging system provided in an embodiment of the present application, a battery module 701 and a digital switching power supply control device 702 are shown. The battery module 701 and the digital switching power supply control device 702 are electrically connected to implement any of the method embodiments described above.

[0125] Corresponding to the above-mentioned method embodiment, the present application also provides an electronic device. Referring to Figure 8, which is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application, the electronic device 800 may include: a processor 801, a memory 802, and a communication unit 803. These components communicate through one or more buses. Those skilled in the art will understand that the structure of the electronic device shown in the figure does not constitute a limitation on the embodiment of the present invention. It can be a bus structure or a star structure, and can also include more or fewer components than shown, or combine certain components, or arrange the components differently.

[0126] The communication unit 803 is configured to establish a communication channel so that the electronic device can communicate with other devices and receive user data sent by other devices or send user data to other devices.

[0127] The processor 801 is the control center of the electronic device. It uses various interfaces and lines to connect the various parts of the entire electronic device. It runs or executes software programs, instructions, and / or modules stored in the memory 802, and calls data stored in the memory to perform various functions of the electronic device and / or process data. The processor can be composed of an integrated circuit (IC), for example, it can be composed of a single packaged IC, or it can be composed of multiple packaged ICs with the same or different functions. For example, the processor 801 can only include a central processing unit (CPU). In an embodiment of the present invention, the CPU can be a single computing core or multiple computing cores.

[0128] The memory 802 is used to store the execution instructions of the processor 801. The memory 802 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0129] When the execution instructions in the memory 802 are executed by the processor 801 , the electronic device 800 is enabled to execute part or all of the steps in the embodiment shown in FIG. 1 .

[0130] In a specific implementation, the present invention further provides a computer storage medium, wherein the computer storage medium may store a program that, when executed, may include some or all of the steps of each embodiment of the simulation scenario generation method provided by the present invention. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

[0131] In the embodiments of the present application, "at least one" refers to one or more, and "more" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can be represented by: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0132] Those skilled in the art will appreciate that the various units and algorithm steps described in the embodiments disclosed herein can be implemented using a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0133] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0134] In the several embodiments provided in this application, if any function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of this application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program code.

[0135] In this specification, reference can be made to the same or similar parts between the various embodiments. In particular, for the device embodiment and the terminal embodiment, since they are basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description in the method embodiment.

Claims

1. A digital switching power supply control method, characterized in that, including: Receiving a feedforward response signal sent by a battery module, the feedforward response signal including battery parameter information associated with a power supply operating mode; Determining a target power supply operating mode corresponding to the battery module according to the battery parameter information; Powering the battery module according to the target power supply operating mode.

2. The digital switching power supply control method according to claim 1, wherein The battery module includes a heating unit and a battery unit. Powering the battery module according to the target power supply operating mode includes: If the target power supply operating mode is a constant voltage mode, powering the heating unit according to the constant voltage mode so that the heating unit heats the battery module; If the target power supply operating mode is a first constant current mode, powering the heating unit and the battery unit according to the first constant current mode so that the heating unit heats the battery module and the battery unit is charged; If the target power supply operating mode is a second constant current mode, powering the battery unit according to the second constant current mode so that the battery unit is charged.

3. The digital switching power supply control method according to claim 1, characterized in that, The battery parameter information includes a battery temperature.

4. The digital switching power supply control method according to claim 3, characterized in that Determining a target power supply operating mode corresponding to the battery module according to the battery parameter information includes: When the battery temperature is within a first preset temperature range, determining that the target power supply operating mode corresponding to the battery module is constant voltage power supply; When the battery temperature is within a second preset temperature range, determining that the target power supply operating mode corresponding to the battery module is first constant current power supply; When the battery temperature is within a third preset temperature range, determining that the target power supply operating mode corresponding to the battery module is second constant current power supply; wherein, the maximum value within the first preset temperature range < the minimum value within the second preset temperature range, and the maximum value within the second preset temperature range < the minimum value within the third preset temperature range.

5. The digital switching power supply control method according to claim 4, characterized in that, When the battery temperature switches between different preset temperature ranges, restart the battery module.

6. The digital switching power supply control method according to claim 5, wherein When the battery temperature switches between different preset temperature ranges, restarting the battery module includes: When the battery temperature switches from the first preset temperature range to the second preset temperature range, restart the battery module; When the battery temperature switches from the third preset temperature range to the second preset temperature range, restart the battery module; When the battery temperature switches from the second preset temperature range to the first preset temperature range, restart the battery module.

7. The digital switching power supply control method according to claim 1, wherein Powering the battery module according to the target power supply operating mode includes: Determining a target charging value execution graph according to the target power supply operating mode; Powering the battery module according to the target charging value execution graph.

8. A digital switching power supply control device, characterized in that, including: A power supply monitoring module, configured to receive a feedforward response signal sent by a battery module, the feedforward response signal including battery parameter information associated with a power supply operating mode; The power supply monitoring module is further configured to determine a target power supply operating mode corresponding to the battery module according to the battery parameter information; A control output module, configured to power the battery module according to the target power supply operating mode.

9. A charging system, characterized in that, including: A battery module; The digital switching power supply control device according to any one of claims 1 to 7; Wherein, the battery module is electrically connected to the digital switching power supply control device.

10. An electronic device, characterized in that, Comprising: A processor; A memory; And a computer program, wherein the computer program is stored in the memory, and the computer program includes instructions that, when executed by the processor, cause the electronic device to execute the method according to any one of claims 1 to 7.

11. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein, when the program runs, it controls the device where the computer-readable storage medium is located to execute the method according to any one of claims 1 to 7.

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