CN113131550A - Charging control method, system, device, and computer-readable storage medium - Google Patents
Charging control method, system, device, and computer-readable storage medium Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/443—Methods for charging or discharging in response to temperature
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a charging control method, a system, equipment and a computer readable storage medium, wherein a sampling voltage value, a sampling current value and a sampling temperature value during battery charging are obtained through an ADC (analog to digital converter) module of a terminal, so that the sampling cost of battery parameters is reduced, the battery floating voltage is determined according to the sampling voltage value, the sampling current value and the sampling temperature value, then the actual battery voltage value is determined according to the battery floating voltage and the sampling voltage value, so that the detection precision of the battery parameters is improved, the charging current value is determined according to the actual battery voltage value, the sampling current value and the sampling temperature value, charging is carried out according to the charging current value, the adjustment precision of the charging current value is improved, and the charging current value is more in line with the actual charging condition of a.
Description
Technical Field
The present invention relates to the field of battery technologies, and in particular, to a charging control method, system, device, and computer-readable storage medium.
Background
In the charging process of the mobile terminal, the charging parameters of the mobile terminal need to be adjusted in real time according to the battery parameters of the battery, and particularly in a quick charging mode, because the current changes rapidly, if the detection precision of the battery parameters is low, the adjustment of the charging parameters is not timely, and then serious safety accidents such as battery damage and even explosion can be caused.
One detection mode of the battery parameters is to additionally arrange an electricity meter on the basis of hardware of the mobile terminal and collect battery current and voltage through the external electricity meter, and the scheme needs to additionally arrange the electricity meter on the basis of the hardware of the mobile terminal, so that the hardware cost is high; still another kind is that gather the battery voltage through the ADC (analog to digital converter) sampling module of mobile terminal itself, but the ADC sampling module of mobile terminal itself is lower to the sampling precision of battery voltage, and battery current is great during quick charge, and battery voltage can have the performance of virtual height because this high current, if direct according to the adjustment of the charging current of virtual height to the battery, does not conform to the actual charging condition of battery, can't satisfy the safety requirement under the quick charge mode.
Disclosure of Invention
The invention mainly aims to provide a charging control method, a charging control system, charging control equipment and a computer readable storage medium, and aims to improve the detection precision of battery parameters and reduce the sampling cost of the battery parameters.
In order to achieve the above object, the present invention provides a charging control method, where the charging control method is applied to a charging control system, the charging control system includes a battery and a charging controller connected to the battery, the charging controller includes an analog-to-digital converter ADC sampling module, and the charging control method includes:
acquiring a sampling voltage value, a sampling current value and a sampling temperature value of the battery through the ADC sampling module;
determining a battery float pressure by the charge controller based on the sampled voltage value, the sampled current value and the sampled temperature value, and determining an actual battery voltage value according to the battery float pressure and the sampled voltage value;
and determining a charging current value through the charging controller based on the actual battery voltage value, the sampling current value and the sampling temperature value, and charging the battery according to the charging current value.
Optionally, the charging control system further includes a sampling resistor connected in series with the battery and connected in parallel with the ADC sampling module, and the step of obtaining the sampled current value of the battery through the ADC sampling module includes:
collecting the voltage value of the sampling resistor through the ADC sampling module;
and determining the current value of the sampling resistor based on the voltage value of the sampling resistor and the resistance value of the sampling resistor, and taking the current value of the sampling resistor as the sampling current value.
Optionally, the step of determining, by the charge controller, a battery float voltage based on the sampled voltage value, the sampled current value, and the sampled temperature value, and determining an actual battery voltage value according to the battery float voltage and the sampled voltage value includes:
acquiring the battery floating voltage corresponding to the sampling voltage value, the sampling current value and the sampling temperature value through the charge controller based on a first preset corresponding relation;
and subtracting the floating voltage of the battery from the sampling voltage value through the charging controller to obtain an actual battery voltage value.
Optionally, the step of determining, by the charge controller, a charging current value based on the actual battery voltage value, the sampled current value, and the sampled temperature value, and charging the battery according to the charging current value includes:
acquiring a standard current value corresponding to the actual battery voltage value and the sampling temperature value through the charge controller based on a second preset corresponding relation;
and determining a charging current value according to the standard current value and the sampling current value through the charging controller, and charging the battery according to the charging current value.
Optionally, the step of determining, by the charging controller, a charging current value according to the standard current value and the sampled current value, and charging the battery according to the charging current value includes:
if the sampling current value is larger than the first standard current value and the difference value between the sampling current value and the first standard current value is larger than or equal to a preset difference value threshold, taking the standard current value as a charging current value, and charging the battery according to the charging current value through the charging controller;
if the sampling current value is less than or equal to the first standard current value and the difference value between the sampling current value and the first standard current value is less than a preset difference threshold value,
optionally, the charging control system further includes a system chip SOC module, and the step of determining, by the charging controller, a battery float voltage based on the sampled voltage value, the sampled current value, and the sampled temperature value, and determining an actual battery voltage value according to the battery float voltage and the sampled voltage value further includes:
acquiring the battery electric quantity corresponding to the sampling current value, the sampling temperature value and the actual battery voltage value through the charge controller based on a third preset corresponding relation;
the charging controller stores the sampling current value, the actual battery voltage value, the battery electric quantity and the sampling temperature value to a preset storage area so as to supply the SOC module to access the preset storage area, and at least one of the sampling current value, the sampling temperature value, the actual battery voltage value and the battery electric quantity is obtained and displayed.
Optionally, the step of obtaining the sampled voltage value, the sampled current value, and the sampled temperature value of the battery through the ADC sampling module includes:
acquiring an original voltage value, an original current value and an original temperature value of the battery through the ADC sampling module according to a preset sampling frequency;
and denoising the original voltage value, the original current value and the original temperature value respectively through the ADC sampling module according to a preset denoising rule to obtain the sampling voltage value, the sampling current value and the sampling temperature value.
Further, in order to achieve the above object, the present invention further provides a charging control system, where the charging control system includes a battery and a charging controller connected to the battery, and the charging controller includes an ADC sampling module;
the ADC sampling module is used for acquiring a sampling voltage value, a sampling current value and a sampling temperature value of the battery;
the charging controller is used for determining battery floating pressure based on the sampling voltage value, the sampling current value and the sampling temperature value, and determining an actual battery voltage value according to the battery floating pressure and the sampling voltage value;
and the charging controller is also used for determining a charging current value based on the actual battery voltage value, the sampling current value and the sampling temperature value, and charging the battery according to the charging current value.
Further, to achieve the above object, the present invention also provides a charging control device, which includes a memory, a processor, and a charging control program stored in the memory and operable on the processor, wherein the charging control program, when executed by the processor, implements the steps of the charging control method as described above.
Further, to achieve the above object, the present invention also provides a computer-readable storage medium having a charging control program stored thereon, the charging control program, when executed by a processor, implementing the steps of the charging control method as described above.
According to the charging control method provided by the invention, a sampling voltage value, a sampling current value and a sampling temperature value of the battery are obtained through an ADC (analog to digital converter) sampling module; determining a battery float pressure by the charge controller based on the sampled voltage value, the sampled current value and the sampled temperature value, and determining an actual battery voltage value according to the battery float pressure and the sampled voltage value; and determining a charging current value through the charging controller based on the actual battery voltage value, the sampling current value and the sampling temperature value, and charging the battery according to the charging current value. The ADC module through the terminal itself obtains the sampling voltage value when the battery charges, sampling current value and sampling temperature value, the sampling cost of battery parameter has been reduced, and according to the sampling voltage value, the battery floating pressure is confirmed to sampling current value and sampling temperature value, then according to battery floating pressure and sampling voltage value confirm actual battery voltage value, thereby the detection precision of battery parameter has been promoted, then according to actual battery voltage value, sampling current value and sampling temperature value confirm the charging current value, charge according to the charging current value, the adjustment precision of charging current value has been promoted, make the charging current value accord with the actual charging condition of battery more.
Drawings
FIG. 1 is a functional block diagram of a charging control system according to the charging control method of the present invention;
FIG. 2 is a schematic circuit diagram of a charging control system according to the charging control method of the present invention;
fig. 3 is a flowchart illustrating a charging control method according to a first exemplary embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | Battery with a |
20 | Charging controller |
| 11 | |
21 | |
| 12 | |
30 | |
| 13 | USB switch |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The existing detection mode of the battery parameters is that an electricity meter is additionally arranged on the basis of hardware of the mobile terminal, and the current and the voltage of the battery are collected through the external electricity meter; still another is that gather the battery voltage through the ADC (analog-to-digital converter) sampling module of mobile terminal itself, but the ADC sampling module of mobile terminal itself is lower to the sampling precision of battery voltage, and battery current is great during quick charge, and battery voltage can have the performance of virtual height because this high current, if direct according to the adjustment of the voltage of virtual height to the charging current value of battery, does not accord with the actual charging condition of battery, can't satisfy the safety requirement under the quick charge mode.
Based on this, the embodiment of the present invention provides a solution, a sampling voltage value, a sampling current value and a sampling temperature value during battery charging can be obtained through an ADC module of a terminal itself, so as to reduce sampling cost of battery parameters, determine a battery float voltage according to the sampling voltage value, the sampling current value and the sampling temperature value, and then determine an actual battery voltage value according to the battery float voltage and the sampling voltage value, thereby improving detection accuracy of the battery parameters, determine a charging current value according to the actual battery voltage value, the sampling current value and the sampling temperature value, perform charging according to the charging current value, and improve adjustment accuracy of the charging current value, so that the charging current value more conforms to an actual charging condition of the battery.
Specifically, referring to fig. 1, fig. 1 is a functional module schematic diagram of a charging control system according to the present invention. The charging control system may be a terminal or a server such as a PC or a mobile terminal that can perform data processing, or an independent charging control system, which may be carried on the terminal or the server.
In the present embodiment, the charging control system at least includes an output module 110, a processor 120, a memory 130 and a communication module 140.
The memory 130 stores a charging control program, and the charging control system can store an original voltage value, an original current value, and an original temperature value of the battery acquired by the ADC sampling module, a sampled voltage value, a sampled current value, and a sampled temperature value of the battery acquired by the ADC sampling module, a first preset correspondence, a second preset correspondence, and the like in the memory 130, and can set a corresponding storage directory in the memory 130, and can be used to store battery parameters such as voltage, current, temperature, and electric quantity according to a time axis; the output module 110 may be a display screen, and the display screen may be configured to display at least one of a sampled current value, a sampled temperature value, an actual battery voltage value, and a battery power on the screen. The communication module 140 may include a WIFI module and a mobile communication module, and interact with an external cloud or a server through the communication module 140 to obtain the updated first preset corresponding relationship, the updated second preset corresponding relationship, and the updated third preset corresponding relationship.
Wherein, the charging control program in the memory 130 realizes the following steps when being executed by the processor:
acquiring a sampling voltage value, a sampling current value and a sampling temperature value of the battery through an ADC (analog to digital converter) sampling module;
determining a battery float pressure by the charge controller based on the sampled voltage value, the sampled current value and the sampled temperature value, and determining an actual battery voltage value according to the battery float pressure and the sampled voltage value;
and determining a charging current value through a charging controller based on the actual battery voltage value, the sampling current value and the sampling temperature value, and charging the battery according to the charging current value.
The specific implementation of the charging control system of the present invention is substantially the same as the following embodiments of the charging control method, and is not described herein again.
Based on the device architecture, the embodiment of the charging control method is provided.
Referring to fig. 2, fig. 2 is a schematic circuit module diagram of a charging control system according to an embodiment of the present invention, where the charging control system includes a battery 10 and a charging controller 20 connected to the battery, and the charging controller 20 includes an ADC sampling module 21. The ADC sampling module 21 is configured to obtain a sampled voltage value, a sampled current value, and a sampled temperature value of the battery; the charge controller 20 is used for determining the battery floating voltage based on the sampling voltage value, the sampling current value and the sampling temperature value, and determining the actual battery voltage value according to the battery floating voltage and the sampling voltage value; the charging controller 20 is further configured to determine a charging current value based on the actual battery voltage value, the sampled current value, and the sampled temperature value, and charge the battery according to the charging current value.
Further, the charging control system further includes a sampling resistor 11 connected in series with the battery 10 and connected in parallel with the ADC sampling module 21, the ADC sampling module 21 may be configured to obtain a sampling current value passing through the sampling resistor 11, specifically, since the ADC sampling module 21 cannot directly collect a current value, a voltage value may be collected first, and then the voltage value is converted into a current value according to the resistance and the voltage value, that is, the ADC sampling module 21 collects voltages at two ends of the sampling resistor 11, and a current value passing through the sampling resistor 11 is determined according to a resistance value of the sampling resistor 11 and a voltage of the sampling resistor 11, since the sampling resistor 11 is connected in series with the battery 10, the current value passing through the battery 10 is equal to the current value passing through the sampling resistor 11, and thus the current value of the sampling resistor may be.
Further, the charging control system further includes a temperature sensor (not shown in fig. 2) disposed on the battery 10, and the ADC sampling module 21 detects the temperature of the battery through the temperature sensor to obtain a sampled temperature value.
Further, the ADC sampling module 21 is connected to the cell positive electrode and the cell negative electrode of the battery 10 to obtain a sampled voltage value of the battery 10.
Further, the charging control system further includes a current source switch 12, the current source switch 12 connects the current source (VBUS pin of USB socket) to the ADC sampling module 21, and the switch can be used to control the ADC sampling module 21 to switch on or off the current source used by the ADC sampling module 21.
Further, the charging control System further includes an SOC (System on Chip) module 30, a platform electricity meter (not shown in fig. 2) is integrated inside the SOC module 30, the SOC module 30 is respectively connected to the battery 10 and the charging controller 20, in a normal charging mode, the SOC module 30 can directly obtain battery parameters of the battery 10 through the platform electricity meter and display the battery parameters, and in a fast charging mode, the SOC module 30 can access the charging controller 20 to obtain battery parameters of the battery 10 and display the battery parameters. Of course, the operation and maintenance personnel may also set the mode of acquiring the battery parameters by the SOC module 30 in the normal charging mode and the fast charging mode as required, for example, in any charging mode, the SOC module 30 acquires the battery parameters through the charging controller 20 to ensure the detection accuracy of the battery parameters.
Further, the charging control system further includes a USB switch 13, in the fast charging mode, the USB switch 13 may connect the charging controller 20 and the D + communication channel and the D-communication channel of the USB socket to enable the charging controller 20 to communicate with the adapter (not shown in fig. 2), and in the normal charging mode, the USB switch 13 may also connect the SOC module 30 and the D + communication channel and the D-communication channel of the USB socket to enable the SOC module 30 to communicate with the adapter.
Those skilled in the art will appreciate that the circuit modules of the embodiment of the charging control system shown in fig. 2 do not constitute a limitation of the charging control system, and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
Referring to fig. 3, fig. 3 is a flowchart illustrating a charging control method according to a first exemplary embodiment of the present invention, the charging control method includes the following steps:
step S10, acquiring a sampling voltage value, a sampling current value and a sampling temperature value of the battery through the ADC sampling module;
the execution main body of the method can be a terminal such as a mobile phone, a tablet computer and the like, and can also be a charging control system.
The existing detection mode of the battery parameters is that an electricity meter is additionally arranged on the basis of hardware of the mobile terminal, and the current and the voltage of the battery are collected through the external electricity meter; still another is that gather the battery voltage through the ADC (analog-to-digital converter) sampling module of mobile terminal itself, but the ADC sampling module of mobile terminal itself is lower to the sampling precision of battery voltage, and battery current is great during quick charge, and battery voltage can have the performance of virtual height because this high current, if direct according to the adjustment of the voltage of virtual height to the charging current value of battery, does not accord with the actual charging condition of battery, can't satisfy the safety requirement under the quick charge mode.
In order to solve the technical problems of high sampling cost and low detection precision of battery parameters in the prior art, in the embodiment of the invention, the charging control system comprises a battery and a charging controller connected with the battery in parallel, wherein the charging controller comprises an ADC (analog to digital converter) sampling module, and the ADC sampling module is carried by the mobile terminal. In the charging process, a sampling voltage value, a sampling current value and a sampling temperature value during battery charging can be obtained through the ADC sampling module, the sampling voltage value reflects the charging voltage of the battery, the sampling current value reflects the charging current of the battery, and the sampling temperature value reflects the temperature of the battery.
Further, before step S10, the method may further include: determining, by the charge controller, a charging mode; if the charging mode is the fast charging mode, executing step S10; and if the charging mode is a common charging mode, acquiring and displaying at least one of voltage, current, temperature and electric quantity when the battery is charged through a platform fuel gauge of an SOC module of the charging control system. The charging current value of the ordinary charging mode is smaller than that of the quick charging mode, the detection precision of the platform fuel gauge is low, and the detection precision requirement of the battery parameters in the ordinary charging mode can only be met.
Step S20, based on the sampling voltage value, the sampling current value and the sampling temperature value, determining the battery floating voltage through the charging controller, and determining the actual battery voltage value according to the battery floating voltage and the sampling voltage value;
under the mode of filling soon, when charging current is great, battery voltage can have the performance of virtual height because of this high current, consequently the sampling voltage value that acquires through ADC sampling module can be higher than the actual voltage value of battery, if directly adjust charging current according to the sampling voltage value that ADC sampling module acquired, because the actual charging situation of not complying with the battery, may produce the potential safety hazard, for avoiding this kind of situation, this embodiment acquires corresponding battery floating voltage based on sampling voltage value, sampling current value and sampling temperature value after acquiring sampling voltage value, and then confirms actual battery voltage value according to sampling voltage value and battery floating voltage.
Further, before step S20, the method further includes: and operation and maintenance personnel pre-establish the corresponding relation between the sampled voltage value, the sampled current value, the sampled temperature value and the battery floating pressure.
And step S30, determining a charging current value through the charging controller based on the actual battery voltage value, the sampling current value and the sampling temperature value, and charging the battery according to the charging current value.
In this embodiment, after the actual battery voltage value, the sampled current value, and the sampled temperature value are obtained, the charging current value needs to be determined according to the actual battery voltage value, the sampled current value, and the sampled temperature value, so that the battery is charged according to the charging current value, and the change in the charging current value causes the temperature and the voltage of the battery to change correspondingly, so that the temperature and the voltage of the battery are kept within a safe range. Specifically, based on a second preset corresponding relation, a standard current value corresponding to the actual battery voltage value and the sampling temperature value is obtained through the charge controller; and determining a charging current value according to the standard current value and the sampling current value through the charging controller, and charging the battery according to the charging current value. The second preset corresponding relation is set by operation and maintenance personnel, and comprises a standard current value corresponding to an actual battery voltage value and a sampling temperature value, wherein the standard current value reflects the maximum charging current in a safe charging range corresponding to the actual battery voltage value and the sampling temperature value.
According to the charging control method disclosed by the embodiment, the sampling voltage value, the sampling current value and the sampling temperature value of the battery are acquired through the ADC sampling module; determining a battery float pressure by the charge controller based on the sampled voltage value, the sampled current value and the sampled temperature value, and determining an actual battery voltage value according to the battery float pressure and the sampled voltage value; and determining a charging current value through the charging controller based on the actual battery voltage value, the sampling current value and the sampling temperature value, and charging the battery according to the charging current value. The ADC module through the terminal itself obtains the sampling voltage value when the battery charges, sampling current value and sampling temperature value, the sampling cost of battery parameter has been reduced, and according to the sampling voltage value, the battery floating pressure is confirmed to sampling current value and sampling temperature value, then according to battery floating pressure and sampling voltage value confirm actual battery voltage value, thereby the detection precision of battery parameter has been promoted, then according to actual battery voltage value, sampling current value and sampling temperature value confirm the charging current value, charge according to the charging current value, the adjustment precision of charging current value has been promoted, make the charging current value accord with the actual charging condition of battery more.
Further, based on the above embodiment, a second embodiment of the charging control method according to the present invention is proposed, and the step S20 includes:
step S21, based on a first preset corresponding relation, acquiring the battery floating voltage corresponding to the sampling voltage value, the sampling current value and the sampling temperature value through the charging controller;
and step S22, subtracting the battery floating voltage from the sampling voltage value through the charging controller to obtain an actual battery voltage value.
In this embodiment, the first preset corresponding relationship is preset by an operation and maintenance person, and includes a corresponding relationship between a sampled voltage value, a sampled current value, a sampled temperature value, and a battery floating voltage, where the corresponding relationship may be specifically a model, inputs of the model are the sampled voltage value, the sampled current value, and the sampled temperature value, and an output is the battery floating voltage, and may also be specifically a curve or a functional relationship, and this embodiment is not limited specifically. After the sampling voltage value, the sampling current value and the sampling temperature value are obtained, the battery floating pressure corresponding to the sampling voltage value, the sampling current value and the sampling temperature value can be obtained according to a first preset corresponding relation, the battery floating pressure reflects the part of the sampling voltage value which is higher than the actual battery voltage value in an imaginary mode, and therefore after the battery floating pressure is determined, the actual battery voltage value can be obtained according to the actual battery voltage value which is the sampling voltage value-the battery floating pressure.
Further, the step S30 includes:
step S31, based on a second preset corresponding relation, obtaining a standard current value corresponding to the actual battery voltage value and the sampling temperature value through the charging controller;
and step S32, determining a charging current value according to the standard current value and the sampling current value through the charging controller, and charging the battery according to the charging current value.
In this embodiment, the second preset corresponding relationship is preset by the operation and maintenance personnel, and includes a corresponding relationship between the actual battery voltage value and the sampled temperature value and the standard current value, the corresponding relationship may specifically be a model, the input of the model is the actual battery voltage value and the sampled temperature value, the output is the standard current value, or may specifically be a curve or a functional relationship, and this embodiment is not particularly limited; the standard current value reflects a maximum charging current in a safe charging range corresponding to the actual battery voltage value and the sampled temperature value.
Further, after the standard current value is determined, the standard current value may be directly used as a charging current value, and the battery is charged by the charging controller according to the charging current value.
Further, in order to avoid frequent adjustment of the charging current and damage to the battery element, the difference between the sampled current value and the standard current value may be compared with a preset difference threshold, and whether to adjust the charging current may be determined according to the comparison result. Specifically, the step S32 includes:
and if the difference value between the sampling current value and the standard current value is greater than or equal to a preset difference value threshold value, taking the standard current value as a charging current value, and charging the battery through the charging controller according to the charging current value.
Further, in order to avoid damage to the battery element due to an excessively large current adjustment span, the sampling current value may be gradually adjusted according to a preset current adjustment gradient and a preset adjustment interval time, or a preset current adjustment speed until the current value is adjusted to the standard current value. It can be understood that the operation and maintenance personnel may set a preset current adjustment gradient and a preset adjustment interval time, or a preset current adjustment speed as needed, and the embodiment is not limited in particular.
And if the difference value between the sampling current value and the standard current is smaller than a preset difference value threshold, the charging current value of the battery is not adjusted.
In this embodiment, if the difference between the sampled current value and the standard current value is greater than or equal to a preset difference threshold, which indicates that the current battery current may be too large and exceed a preset safety range, or the charging current is too small and the charging efficiency is low and needs to be regulated, the standard current value is used as a charging current value, and the battery is charged by the charging controller according to the charging current value; if the difference value between the sampling current value and the standard current is smaller than the preset difference value threshold value, the current battery current is in the preset charging current range, charging safety can be guaranteed, efficient charging can also be guaranteed, and the charging current value of the battery does not need to be adjusted.
Further, a third embodiment of the charging control method according to the present invention is proposed, wherein the step S10 includes:
step S11, acquiring an original voltage value, an original current value and an original temperature value of the battery through the ADC sampling module according to a preset sampling frequency;
and step S12, denoising the original voltage value, the original current value and the original temperature value respectively through the ADC sampling module according to a preset denoising rule to obtain the sampling voltage value, the sampling current value and the sampling temperature value.
In this embodiment, in order to further improve the detection accuracy of voltage, current, and temperature during battery charging, the ADC sampling module obtains an original voltage value, an original current value, and an original temperature value of the battery according to a preset sampling frequency, for example, the ADC sampling module performs sampling every 40 milliseconds, so that 25 original voltage values can be collected every second, and for the 25 data, the maximum value and the minimum value are removed, and the remaining data is averaged to be used as the sampling voltage value of this second, thereby avoiding fluctuation interference of the sampling parameters. Of course, the sampling voltage value may be obtained based on the original voltage value collected within a time period less than 1 second or greater than 1 second, and the operation and maintenance personnel may set the length of the time period as needed, and it can be understood that the operation and maintenance personnel may set the size of the preset sampling frequency as needed, which is not limited in this embodiment. The sampling current value and the sampling temperature are the same.
In order to further improve the detection accuracy of voltage, current and temperature during battery charging, a sliding window can be used for dividing battery parameters, the size and the moving step length of the sliding window are not specifically limited in the embodiment, the size and the moving step length of the sliding window can be fixed or can be dynamically changed, and operation and maintenance personnel can set the size and the moving step length as required. For example, if the preset sampling frequency of the ADC sampling module sampling the battery voltage is f equal to 60Hz, that is, 60 raw voltage values are collected every second, the administrator may set the size of the sliding window for averaging to be fixed to L equal to 2f, the moving step length to be fixed to f, that is, the window moves forward 60 data each time, the current window holds 120 data collected in 2 seconds, and the average value of the 120 raw voltage values is taken as the sampling voltage value at the current time. The sampling current value and the sampling temperature are the same, so that fluctuation interference of sampling parameters is avoided. The sampling current value and the sampling temperature are the same.
Further, the charging control System further includes an SOC (System on Chip) module, and after step S20, the charging control System further includes:
step S201, acquiring battery electric quantity corresponding to the sampling current value, the sampling temperature value and the actual battery voltage value through the charge controller based on a third preset corresponding relation;
step S202, storing the sampling current value, the actual battery voltage value, the battery electric quantity and the sampling temperature value to a preset storage area through the charging controller so that the SOC module can access the preset storage area, and acquiring and displaying at least one of the sampling current value, the sampling temperature value, the actual battery voltage value and the battery electric quantity.
In this embodiment, the third preset corresponding relationship is preset by the operation and maintenance staff, and includes a corresponding relationship between the sampled current value, the sampled temperature value, the actual battery voltage value, and the battery power, where the corresponding relationship may be specifically a model, the input of the model is the sampled current value, the sampled temperature value, and the actual battery voltage value, the output is the battery power, or may be specifically a curve or a functional relationship, and this embodiment is not limited specifically. After the actual battery voltage is determined, according to a third preset corresponding relation, the battery electric quantity corresponding to the sampling current value, the sampling temperature value and the actual battery voltage value can be obtained through the charging controller, the third preset corresponding relation enables the charging controller to store current battery parameters, namely the sampling current value, the actual battery voltage value, the battery electric quantity and the sampling temperature value, in a preset storage area appointed with the SOC module so as to be provided for the SOC module to access, the SOC module accesses the preset storage area, and at least one of the sampling current value, the sampling temperature value, the actual battery voltage value and the battery electric quantity can be obtained and displayed. The predetermined storage area may be selected as an I2C memory address.
In this embodiment, through charge controller with appearance current value, actual battery voltage value, battery electric quantity, sampling temperature value storage to predetermineeing the memory area to supply the access of SOC module, can make the SOC module present more accurate for user's battery parameter, let the user know more to mobile terminal's the condition of charging, thereby promote user experience.
In addition, an embodiment of the present invention further provides a charging control apparatus, where the charging control apparatus includes a memory, a processor, and a charging control program that is stored in the memory and is executable on the processor, and when the charging control program is executed by the processor, the charging control apparatus implements the steps of the charging control method according to the above embodiment.
Since the charging control program is executed by the processor, all technical solutions of all the embodiments are adopted, so that at least all the advantages brought by all the technical solutions of all the embodiments are achieved, and details are not repeated herein.
In addition, the embodiment of the invention also provides a computer readable storage medium. The computer-readable storage medium has stored thereon a charging control program that, when executed by a processor, implements the steps of the charging control method as described above.
Since the charging control program is executed by the processor, all technical solutions of all the embodiments are adopted, so that at least all the advantages brought by all the technical solutions of all the embodiments are achieved, and details are not repeated herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, a controlled terminal, or a network device) to execute the method of each embodiment of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A charging control method is applied to a charging control system, the charging control system comprises a battery and a charging controller connected with the battery, the charging controller comprises an analog-to-digital converter (ADC) sampling module, and the charging control method comprises the following steps:
acquiring a sampling voltage value, a sampling current value and a sampling temperature value of the battery through the ADC sampling module;
determining a battery float pressure by the charge controller based on the sampled voltage value, the sampled current value and the sampled temperature value, and determining an actual battery voltage value according to the battery float pressure and the sampled voltage value;
and determining a charging current value through the charging controller based on the actual battery voltage value, the sampling current value and the sampling temperature value, and charging the battery according to the charging current value.
2. The charge control method of claim 1, wherein the charge control system further comprises a sampling resistor connected in series with the battery and in parallel with the ADC sampling module, and the step of obtaining the sampled current value of the battery by the ADC sampling module comprises:
collecting the voltage value of the sampling resistor through the ADC sampling module;
and determining the current value of the sampling resistor based on the voltage value of the sampling resistor and the resistance value of the sampling resistor, and taking the current value of the sampling resistor as the sampling current value.
3. The charge control method of claim 1, wherein the step of determining a float voltage by the charge controller based on the sampled voltage value, sampled current value, and sampled temperature value, and determining an actual battery voltage value from the float voltage and the sampled voltage value comprises:
acquiring the battery floating voltage corresponding to the sampling voltage value, the sampling current value and the sampling temperature value through the charge controller based on a first preset corresponding relation;
and subtracting the floating voltage of the battery from the sampling voltage value through the charging controller to obtain an actual battery voltage value.
4. The charge control method of claim 1, wherein said step of determining a charge current value by said charge controller based on said actual battery voltage value, said sampled current value, and a sampled temperature value, and charging said battery at said charge current value comprises:
acquiring a standard current value corresponding to the actual battery voltage value and the sampling temperature value through the charge controller based on a second preset corresponding relation;
and determining a charging current value according to the standard current value and the sampling current value through the charging controller, and charging the battery according to the charging current value.
5. The charge control method of claim 4, wherein said step of determining, by said charge controller, a charge current value based on said standard current value and said sampled current value, and charging said battery according to said charge current value comprises:
if the difference value between the sampling current value and the standard current value is larger than or equal to a preset difference value threshold value, taking the standard current value as a charging current value, and charging the battery through the charging controller according to the charging current value;
and if the difference value between the sampling current value and the standard current is smaller than a preset difference value threshold, the charging current value of the battery is not adjusted.
6. The charge control method according to claim 1, wherein the charge control system further comprises a system-on-chip SOC module;
the step of determining a battery float voltage by the charge controller based on the sampled voltage value, the sampled current value and the sampled temperature value, and determining an actual battery voltage value according to the battery float voltage and the sampled voltage value further comprises:
acquiring the battery electric quantity corresponding to the sampling current value, the sampling temperature value and the actual battery voltage value through the charge controller based on a third preset corresponding relation;
the charging controller stores the sampling current value, the actual battery voltage value, the battery electric quantity and the sampling temperature value to a preset storage area so as to supply the SOC module to access the preset storage area, and at least one of the sampling current value, the sampling temperature value, the actual battery voltage value and the battery electric quantity is obtained and displayed.
7. The charge control method according to any one of claims 1 to 6, wherein the step of acquiring the sampled voltage value, the sampled current value, and the sampled temperature value of the battery by the ADC sampling module includes:
acquiring an original voltage value, an original current value and an original temperature value of the battery through the ADC sampling module according to a preset sampling frequency;
and denoising the original voltage value, the original current value and the original temperature value respectively through the ADC sampling module according to a preset denoising rule to obtain the sampling voltage value, the sampling current value and the sampling temperature value.
8. The charging control system is characterized by comprising a battery and a charging controller connected with the battery, wherein the charging controller comprises an ADC (analog-to-digital converter) sampling module;
the ADC sampling module is used for acquiring a sampling voltage value, a sampling current value and a sampling temperature value of the battery;
the charging controller is used for determining battery floating pressure based on the sampling voltage value, the sampling current value and the sampling temperature value, and determining an actual battery voltage value according to the battery floating pressure and the sampling voltage value;
and the charging controller is also used for determining a charging current value based on the actual battery voltage value, the sampling current value and the sampling temperature value, and charging the battery according to the charging current value.
9. A charging control apparatus, characterized in that the charging control apparatus comprises a memory, a processor, and a charging control program stored on the memory and executable on the processor, the charging control program, when executed by the processor, implementing the steps of the charging control method according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that a charging control program is stored thereon, which when executed by a processor implements the steps of the charging control method according to any one of claims 1 to 7.
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