CN117498505B - Electric quantity display method of portable power supply, portable power supply and chip system - Google Patents
Electric quantity display method of portable power supply, portable power supply and chip system Download PDFInfo
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Abstract
The application is applicable to the technical field of power sources, and provides an electric quantity display method of a portable power source, the portable power source, a chip system and a computer readable storage medium, wherein the method comprises the following steps: acquiring a first SOC output by a battery management system of the portable power supply; taking the first SOC as the power supply residual quantity displayed by a display device of the portable power supply under the condition that the portable power supply is in a charging state and the first SOC is smaller than or equal to a preset SOC threshold value; and under the condition that the portable power supply is in a charging state and the first SOC is larger than the preset SOC threshold value, determining a second SOC based on the charging power and the charging duration of the portable power supply, and taking the second SOC as the power supply residual quantity displayed by the display device. By the method, the problem that the portable power supply is always charged but cannot be displayed in a full power state can be solved.
Description
Technical Field
The application belongs to the technical field of power supplies, and particularly relates to an electric quantity display method of a portable power supply, the portable power supply, a chip system and a computer readable storage medium.
Background
The portable power supply is a multifunctional portable energy storage power supply which is internally provided with a lithium ion battery, can store electric energy and has alternating current output. The portable power supply has the advantages of light weight, high capacity, high power and convenience in carrying, can be used indoors or outdoors, and can be used for selecting conventional charging or solar charging according to different use conditions. The power supply can be used as a standby power supply of an electric automobile, is also suitable for various electronic products, and can be used as an outdoor power supply and a small standby power supply in emergency situations such as power failure.
In the existing portable power supply, the charger is always in a charging State during the use process, but the charging State (SOC) Of the portable power supply displayed on the display panel cannot be displayed to 100% (full State). For example, the charger charges the portable power supply for more than 12 hours, but the SOC displayed on the display panel is still 98%.
Disclosure of Invention
In view of this, the present application provides a power display method for a portable power source, a chip system, and a computer readable storage medium, which can solve the problem that the portable power source is always charged but cannot be displayed in a full power state.
In a first aspect, the present application provides a method for displaying an electric quantity of a portable power source, including:
acquiring a first SOC output by a battery management system of the portable power supply;
taking the first SOC as the power supply residual quantity displayed by a display device of the portable power supply under the condition that the portable power supply is in a charging state and the first SOC is smaller than or equal to a preset SOC threshold value;
and under the condition that the portable power supply is in a charging state and the first SOC is larger than the preset SOC threshold value, determining a second SOC based on the charging power and the charging duration of the portable power supply, and taking the second SOC as the power supply residual quantity displayed by the display device.
In the method, the portable power supply acquires the SOC output by the battery management system, and in the charging process, when the SOC output by the battery management system is smaller than or equal to a preset SOC threshold value, the SOC output by the battery management system is displayed on the display panel, and when the SOC output by the battery management system is larger than the preset SOC threshold value, the SOC is determined through the charging power and the charging duration of the portable power supply, and the SOC is displayed on the display panel. As the charging period is increasing over time, the SOC determined based on the charging power and the charging period is also gradually increasing so that the SOC displayed on the display panel can reach 100%.
Optionally, the determining the second SOC based on the charging power and the charging duration of the portable power source includes:
determining the second SOC based on the preset SOC threshold, an estimated SOC increment of the portable power supply from a first moment to a current moment and a sampling SOC increment of the portable power supply from the first moment to the current moment, wherein the estimated SOC increment is calculated according to the charging power and the charging time period, the sampling SOC increment is calculated according to the first SOC and the preset SOC threshold, the first moment is a moment when the SOC output by the battery management system is equal to the preset SOC threshold, and the charging time period is a time period between the first moment and the current moment.
Alternatively, SOC 2 =SOC_ Set +K 1 *△SOC+K 2 *△SOC_ BMS Wherein K is 1 、K 2 K is a preset weight 1 +K 2 =1，SOC 2 For the second SOC, SOC\u Set For the preset SOC threshold, ΔSOC is the estimated SOC increment, ΔSOC u BMS An amount of increase for the sampling SOC.
Alternatively, the estimated SOC increase is denoted Δsoc, Δsoc=e bat /C，E bat E=Σp×t, where C is the battery rated capacity of the portable power source, η is the charging efficiency, Σp is the sum of the charging powers of all charging ports of the portable power source, and t is the charging duration.
Optionally, the sampling SOC increase amount is equal to a difference of the first SOC minus the preset SOC threshold value.
Optionally, the determining the second SOC based on the charging power and the charging duration of the portable power source includes:
and determining the second SOC based on the preset SOC threshold and the estimated SOC increment of the portable power supply from a first moment to a current moment, wherein the estimated SOC increment is calculated according to the charging power and the charging duration, the first moment is a moment when the SOC output by the battery management system is equal to the preset SOC threshold, and the charging duration is a duration between the first moment and the current moment.
Optionally, when the remaining power of the power supply displayed by the display device is 100%, the portable power supply stops charging.
In a second aspect, the present application provides a portable power supply comprising a memory having a computer program stored therein and a processor for calling and running the computer program from the memory such that the portable power supply performs the method as provided in the first aspect above.
In a third aspect, the present application provides a chip system comprising a processor for invoking and running a computer program from a memory, such that a portable power supply in which the chip system is installed performs the method as provided in the first aspect above.
In a fourth aspect, the present application provides a computer readable storage medium storing a computer program which, when executed by a processor, implements a method as provided in the first aspect.
In a fifth aspect, the present application provides a computer program product for causing a portable power supply to carry out the method provided in the first aspect above when the computer program product is run on the portable power supply.
It will be appreciated that the advantages of the second to fifth aspects may be found in the relevant description of the first aspect, and are not described here again.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a first schematic structural diagram of a portable power supply according to an embodiment of the present application;
fig. 2 is a flow chart of a method for displaying electric quantity of a portable power supply according to an embodiment of the present application;
fig. 3 is a second schematic structural diagram of the portable power source according to the embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As used in this specification and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".
In addition, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
The portable power supply is provided with a display device and is used for displaying the residual electric quantity of the portable power supply in real time. In the process of charging the portable device, the user can acquire the electric quantity information through the display device. In the case where the charge is judged to be full by the charge information, the charging may be stopped. In the related art, the power information displayed on the display device is output from a battery management system (Battery Management System, BMS) of the portable power source. However, due to the problems of sampling precision, algorithm precision, battery aging, battery core difference and the like of the BMS, the electric quantity information output by the BMS is possibly less than 100%, and further the display device is always less than 100%, which brings some trouble to users. In view of this, the present application provides a solution, in which, during the charging process, when the SOC output by the BMS is less than or equal to the preset SOC threshold value, the display device still displays the power information output by the BMS; when the SOC output by the BMS is greater than a preset SOC threshold value, the power information displayed by the display device becomes the SOC calculated based on the charging power and the charging duration of the portable power source. Thus, as the charge period is increasing over time, the SOC determined based on the charge power and the charge period is also gradually increasing so that the SOC displayed on the display panel can reach 100%.
Fig. 1 is a portable power supply applied to an embodiment of the present application, the portable power supply including a display device, a battery, a charger 1, a charger 2, a photovoltaic charging port, and a utility charging port. In fig. 1, a solid line indicates a charging line, and a broken line indicates a communication line. Specifically, after the photovoltaic charging port is connected with the photovoltaic power supply, the battery can be charged through the charger 1, or after the mains supply interface is connected with the mains supply, the battery can be charged through the charger 2. The charging power of the charger 1 is P1, the charging efficiency is η1, the charging power of the charger 2 is P2, and the charging efficiency is η2. That is, when the battery is charged using different charging ports, the charging speed may be different.
The display device includes a processor and a display screen, the processor being in communication with the charger and the battery, respectively, such as RS 485. The processor may receive charging information (e.g., power information) sent by the battery and charger 1, 2 and then display the charging information via the display screen to provide a reference to the user.
Fig. 2 shows a flowchart of a power display method of a portable power supply according to an embodiment of the present application, where the power display method is applied to the portable power supply, and is described in detail as follows:
step 201, obtaining a first SOC output by a battery management system of the portable power source.
Step 202, when the portable power supply is in a charging state and the first SOC is less than or equal to a preset SOC threshold, taking the first SOC as a power supply residual quantity displayed by a display device of the portable power supply.
Step 203, determining a second SOC based on the charging power and the charging duration of the portable power supply, and taking the second SOC as the power supply residual capacity displayed by the display device, when the portable power supply is in a charging state and the first SOC is greater than the preset SOC threshold.
In the embodiment of the application, the battery management system may sample and output the remaining power of the primary battery at intervals, and the remaining power may be denoted as a first SOC, which may be used to reflect the real-time power of the battery. The preset SOC threshold value can be set to be more than 95%, and can be set and adjusted according to the situation.
In one example, the preset SOC threshold value is set to 98%, and when the first SOC output by the BMS is less than or equal to 98% during charging of the portable power source, the portable power source may use the first SOC as the power remaining amount displayed by the display device and display the first SOC on the display device; when the first SOC output by the BMS is greater than 98%, the portable power source may determine a second SOC based on the charging power of the charger of the portable power source and the charging time period for charging the portable power source, take the second SOC as the power remaining amount displayed by the display device, and display the second SOC on the display device.
The charging amount of the theoretical battery can be determined according to the charging power and the charging duration, and the remaining capacity of the theoretical battery can be further determined. The theoretical remaining charge of the battery may also follow the accumulation over time during the charging process. Therefore, when the first SOC is greater than the preset SOC threshold value, the theoretical value of the remaining power, which increases with time until the theoretical value is equal to 100%, can be displayed on the display device in this way. In this way, the problem of the portable power source being charged at all times but not being able to display a full state of charge can be solved.
In some embodiments, determining the second SOC based on the charging power and the charging duration of the portable power source includes: and determining the second SOC based on the preset SOC threshold, the estimated SOC increment of the portable power supply from the first moment to the current moment and the sampling SOC increment of the portable power supply from the first moment to the current moment. The estimated SOC increase amount is calculated according to the charging power and the charging duration, the sampled SOC increase amount is calculated according to the first SOC and the preset SOC threshold, the first time is a time when the SOC output by the battery management system is equal to the preset SOC threshold, and the charging duration is a duration between the first time and the current time.
That is, at a first time, the power of the portable power source is charged to a preset SOC threshold value, such as 98%. Assuming that the current time is 5 minutes after the first time, the charge duration is equal to 5 minutes. The estimated SOC increment of the portable power supply can be calculated according to the charging power and the charging duration of the portable power supply after the first moment. Considering that the estimated SOC increase may be affected by some interference factors and is inaccurate, the embodiment of the present application synthesizes the estimated SOC increase obtained through theoretical calculation and the sampled SOC increase obtained through BMS actual sampling, and determines the second SOC by combining with the preset SOC threshold, so that the remaining power displayed by the limiting device may be closer to the actual value.
In some embodiments, the second SOC may be calculated as follows: SOC (State of Charge) 2 =SOC_ Set +K 1 *△SOC+K 2 *△SOC_ BMS Wherein K is 1 、K 2 K is a preset weight 1 +K 2 =1，SOC 2 For the second SOC, SOC\u Set For the preset SOC threshold, ΔSOC is the estimated SOC increment, ΔSOC u BMS An amount of increase for the sampling SOC. For example, assume that the estimated SOC increase is 3%, the sampled SOC increase is 5%, K 1 0.4, K 2 At 0.6, the preset SOC threshold is 95%, then the second soc=soc 2 =95% +0.4 x 3% +0.6 x 5% =99.2%. K is the same as 1 、K 2 The value of (2) can be adjusted according to the situation. For example, if the estimated SOC increase amount is considered with emphasis, the weight corresponding to the estimated SOC increase amount may be set to be relatively large. Even if BMS fails, at ΔSOC/u BMS With a constant 0, the SOC shown may still be shown to 100% over the actual energy accumulation.
In some embodiments, the estimated SOC increase is noted as Δsoc, Δsoc=e bat /C，E bat E=Σp×t, where C is the battery rated capacity of the portable power source, η is the charging efficiency, Σp is the sum of the charging powers of all charging ports of the portable power source, and t is the charging duration. The charging efficiency is equal to the charger conversion efficiency. Referring to fig. 1, in case of photovoltaic charging, the charger conversion efficiency in the embodiment of the present application should be the conversion efficiency of the charger 1. If the portable power supply is simultaneously powered on by both the photovoltaic power supply and the mains power supply, Σp is the sum of the charging power of the photovoltaic charging port and the charging power of the mains charging port. It should be appreciated that the battery rated capacity, charger conversion efficiency, and battery charging efficiency may all be obtained from a look-up table.
In some embodiments, the sample SOC increase amount is equal to a difference of the first SOC minus the preset SOC threshold value. For example, assuming that the first SOC of the BMS output is 98% and the preset SOC threshold value is 95%, the sampling SOC increase amount is equal to 98% minus 95%, which is 3%.
In some embodiments, the portable power supply stops charging when the remaining power of the power supply displayed by the display device is 100%. The charger is controlled to stop charging according to the displayed power supply residual quantity, and the displayed power supply residual quantity is increased by 100% after the time, so that the condition that the charger charges the battery all the time is avoided, the damage of the battery is effectively avoided, and the service life of the battery is prolonged.
In some embodiments, determining the second SOC based on the charging power and the charging duration of the portable power source includes: and determining the second SOC based on the preset SOC threshold and the estimated SOC increment of the portable power supply from a first moment to a current moment, wherein the estimated SOC increment is calculated according to the charging power and the charging duration, the first moment is a moment when the SOC output by the battery management system is equal to the preset SOC threshold, and the charging duration is a duration between the first moment and the current moment.
That is, at a first time, the power of the portable power source is charged to a preset SOC threshold value, such as 98%. Assuming that the current time is 5 minutes after the first time, the charge duration is equal to 5 minutes. The estimated SOC increment of the portable power supply can be calculated according to the charging power and the charging duration of the portable power supply after the first moment. According to the embodiment of the application, the second SOC can be determined according to the estimated SOC increment and the preset SOC threshold. Specifically, the estimated SOC increase amount indicates an increase in the battery charge after the first time. Therefore, the second SOC can be obtained by adding the preset SOC threshold value and the estimated SOC increase amount.
As can be seen from the above, in the present application, in the charging process, when the SOC output by the BMS is less than or equal to the preset SOC threshold, the display device still displays the electrical quantity information output by the BMS; when the SOC output by the BMS is greater than a preset SOC threshold value, the power information displayed by the display device becomes the SOC calculated based on the charging power and the charging duration of the portable power source. Thus, as the charge period is increasing over time, the SOC determined based on the charge power and the charge period is also gradually increasing so that the SOC displayed on the display panel can reach 100%.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic of each process, and should not limit the implementation process of the embodiment of the present application in any way.
Fig. 3 is a schematic structural diagram of a portable power supply according to an embodiment of the present application. As shown in fig. 3, the portable power source 3 of this embodiment includes: at least one processor 30 (only one is shown in fig. 3), a memory 31, and a computer program 32 stored in the memory 31 and executable on the at least one processor 30, the processor 30, when executing the computer program 32, causing the portable power source to execute the following first SOC that obtains the battery management system output of the portable power source;
taking the first SOC as the power supply residual quantity displayed by a display device of the portable power supply under the condition that the portable power supply is in a charging state and the first SOC is smaller than or equal to a preset SOC threshold value;
and under the condition that the portable power supply is in a charging state and the first SOC is larger than the preset SOC threshold value, determining a second SOC based on the charging power and the charging duration of the portable power supply, and taking the second SOC as the power supply residual quantity displayed by the display device.
The portable power source 3 may include, but is not limited to, a processor 30, a memory 31. It will be appreciated by those skilled in the art that fig. 3 is merely an example of the portable power source 3 and is not meant to be limiting as the portable power source 3 may include more or fewer components than shown, or may combine certain components, or may include different components, such as input-output devices, network access devices, etc.
The processor 30 may be a central processing unit (Central Processing Unit, CPU), the processor 30 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 31 may in some embodiments be an internal storage unit of the portable power source 3, such as a hard disk or a memory of the portable power source 3. The memory 31 may also be an external storage device of the portable power source 3 in other embodiments, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card) or the like, which are provided on the portable power source 3. Further, the memory 31 may include both the internal storage unit and the external storage device of the portable power supply 3. The memory 31 is used for storing an operating system, an application program, a boot loader (BootLoader), data, other programs, and the like, such as program codes of the computer programs. The above-described memory 31 may also be used to temporarily store data that has been output or is to be output.
It should be noted that, because the content of information interaction and execution process between the above devices/units is based on the same concept as the method embodiment of the present application, specific functions and technical effects thereof may be referred to in the method embodiment section, and will not be described herein again.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
The embodiments of the present application also provide a computer readable storage medium storing a computer program, which when executed by a processor, implements the steps of the respective method embodiments described above.
Embodiments of the present application provide a computer program product for causing a portable power supply to perform the steps of the various method embodiments described above when the computer program product is run on the portable power supply.
An embodiment of the present application provides a chip system, which includes a processor, where the processor is configured to invoke and execute a computer program from a memory, so that a portable power supply on which the chip system is installed performs the steps in the foregoing method embodiments.
The integrated units described above, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application implements all or part of the flow of the method of the above embodiments, and may be implemented by a computer program to instruct related hardware, where the above computer program may be stored in a computer readable storage medium, where the computer program, when executed by a processor, may implement the steps of each of the method embodiments described above. The computer program comprises computer program code, and the computer program code can be in a source code form, an object code form, an executable file or some intermediate form and the like. The computer readable medium may include at least: any entity or device capable of carrying computer program code to a portable power source, a recording medium, computer Memory, read-Only Memory (ROM), random access Memory (RAM, random Access Memory), electrical carrier signals, telecommunications signals, and software distribution media. Such as a U-disk, removable hard disk, magnetic or optical disk, etc. In some jurisdictions, computer readable media may not be electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/network device and method may be implemented in other manners. For example, the apparatus/network device embodiments described above are merely illustrative, e.g., the division of modules or elements described above is merely a logical functional division, and there may be additional divisions in actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (9)
1. A method for displaying power of a portable power source, comprising:
acquiring a first SOC output by a battery management system of the portable power supply;
taking the first SOC as the power supply residual quantity displayed by a display device of the portable power supply under the condition that the portable power supply is in a charging state and the first SOC is smaller than or equal to a preset SOC threshold value;
determining a second SOC based on the charging power and the charging duration of the portable power supply under the condition that the portable power supply is in a charging state and the first SOC is larger than the preset SOC threshold, and taking the second SOC as the power supply residual quantity displayed by the display device;
the determining the second SOC based on the charging power and the charging duration of the portable power source includes:
determining the second SOC based on the preset SOC threshold, an estimated SOC increment of the portable power supply from a first moment to a current moment and a sampling SOC increment of the portable power supply from the first moment to the current moment, wherein the estimated SOC increment is calculated according to the charging power and the charging time period, the sampling SOC increment is calculated according to the first SOC and the preset SOC threshold, the first moment is a moment when the SOC output by the battery management system is equal to the preset SOC threshold, and the charging time period is a time period between the first moment and the current moment.
2. The power display method according to claim 1, wherein SOC 2 =SOC_ Set +K 1 *△SOC+K 2 *△SOC_ BMS Wherein K is 1 、K 2 K is a preset weight 1 +K 2 =1，SOC 2 For the second SOC, SOC\u Set For the preset SOC threshold, ΔSOC is the estimated SOC increment, ΔSOC u BMS An amount of increase for the sampling SOC.
3. The electric quantity display method according to claim 1 or 2, characterized in that the estimated SOC increase amount is denoted as Δsoc, Δsoc=e bat /C，E bat E=Σp×t, where C is the battery rated capacity of the portable power source, η is the charging efficiency, Σp is the sum of the charging powers of all charging ports of the portable power source, and t is the charging duration.
4. The power display method according to claim 3, wherein the sampling SOC increase amount is equal to a difference of the first SOC minus the preset SOC threshold value.
5. The power display method of claim 1, wherein the determining the second SOC based on the charging power and the charging duration of the portable power source comprises:
and determining the second SOC based on the preset SOC threshold and the estimated SOC increment of the portable power supply from a first moment to a current moment, wherein the estimated SOC increment is calculated according to the charging power and the charging duration, the first moment is a moment when the SOC output by the battery management system is equal to the preset SOC threshold, and the charging duration is a duration between the first moment and the current moment.
6. The power display method according to claim 1, wherein the portable power supply stops charging when the remaining power of the power supply displayed by the display device is 100%.
7. A portable power supply comprising a memory and a processor, the memory having stored therein a computer program, the processor being configured to invoke and run the computer program from the memory such that the portable power supply performs the power level display method of any of claims 1-6.
8. A chip system comprising a processor for calling and running a computer program from a memory, such that a portable power supply on which the chip system is mounted performs the power level display method according to any one of claims 1-6.
9. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the method according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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