CN116961155A - Charging control method, device, electronic apparatus, storage medium, and program product - Google Patents
Charging control method, device, electronic apparatus, storage medium, and program product Download PDFInfo
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- CN116961155A CN116961155A CN202210405804.4A CN202210405804A CN116961155A CN 116961155 A CN116961155 A CN 116961155A CN 202210405804 A CN202210405804 A CN 202210405804A CN 116961155 A CN116961155 A CN 116961155A
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- 238000004590 computer program Methods 0.000 claims description 23
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- 238000004891 communication Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000013256 coordination polymer Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present application relates to a charge control method, apparatus, electronic device, storage medium, and program product, the method comprising: in the process of charging the terminal battery by adopting the fast charging mode, detecting the voltage difference between the first battery cell and the second battery cell according to a preset time interval, and adjusting the current limiting value of the current limiting IC connected with the second battery cell according to the voltage difference when detecting that the voltage difference between the first battery cell and the second battery cell meets a preset adjusting condition. Therefore, in the embodiment of the application, when the voltage difference between the first battery cell and the second battery cell is detected to meet the preset adjustment condition in real time in the charging process, the current limiting value of the current limiting IC can be dynamically adjusted in real time according to the voltage difference between the first battery cell and the second battery cell, so that the voltage difference between the first battery cell and the second battery cell is not excessively large, and the normal operation of the current limiting IC and the normal operation of the charging circuit are ensured.
Description
Technical Field
The present application relates to the field of charging technologies, and in particular, to a charging control method, a device, an electronic apparatus, a storage medium, and a program product.
Background
As the usage rate of the terminal increases, the power consumption of the terminal increases. In order to increase the battery capacity of the terminal, the current battery is developed from single battery cells to series double battery cells or parallel double battery cells.
In the traditional parallel double-cell technology, the output current of the adapter is respectively transmitted to two parallel cells in the terminal through two paths so as to realize the quick charge of the terminal battery. In general, in order to equalize the currents transmitted from the output current of the adapter to the two cells, a current limiting integrated circuit (integrated circuit, IC) is required to be disposed on the path of the small-capacity cell to limit the magnitude of the transmitted current flowing through the cell.
However, in the conventional parallel dual-cell fast charging process, there is a risk that the current limiting IC is broken down.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a charging control method, apparatus, electronic device, storage medium, and program product that facilitate ensuring proper operation of a current limiting IC.
In a first aspect, the present application provides a charging control method, where the method is applied to a terminal, the terminal includes a first electric core and a second electric core connected in parallel, and a capacity of the second electric core is greater than a capacity of the first electric core, and the method includes:
In the process of charging the terminal by adopting a quick charging mode, detecting the voltage difference between the first battery cell and the second battery cell according to a preset time interval;
when the voltage difference between the first battery core and the second battery core is detected to meet the preset adjustment condition, adjusting the current limiting value of the current limiting Integrated Circuit (IC) connected with the second battery core according to the voltage difference.
In a second aspect, the present application further provides a charging control device, where the device is applied to a terminal, the terminal includes a first battery cell and a second battery cell connected in parallel, and a capacity of the second battery cell is greater than a capacity of the first battery cell, and the device includes:
the detection module is used for detecting the voltage difference between the first battery cell and the second battery cell according to a preset time interval in the process of charging the terminal by adopting a quick charging mode;
and the adjusting module is used for adjusting the current limiting value of the current limiting Integrated Circuit (IC) connected with the second battery core according to the voltage difference when the voltage difference between the first battery core and the second battery core is detected to meet the preset adjusting condition.
In a third aspect, the present application also provides an electronic device comprising a memory storing a computer program and a processor implementing the steps of the method of the first aspect above when the processor executes the computer program.
In a fourth aspect, the present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of the first aspect described above.
In a fifth aspect, the application also provides a computer program product comprising a computer program which, when executed by a processor, implements the steps of the method of the first aspect described above.
According to the charging control method, the device, the electronic equipment, the storage medium and the program product, the terminal detects the voltage difference between the first battery cell and the second battery cell according to the preset time interval in the process of charging the terminal battery by adopting the fast charging mode, and adjusts the current limiting value of the current limiting IC connected with the second battery cell according to the voltage difference when the voltage difference between the first battery cell and the second battery cell is detected to meet the preset adjustment condition. Therefore, in the embodiment of the application, when the terminal detects that the voltage difference between the first battery cell and the second battery cell meets the preset adjustment condition in real time in the charging process, the current limiting value of the current limiting IC can be dynamically adjusted in real time according to the voltage difference between the first battery cell and the second battery cell, so that the voltage difference between the first battery cell and the second battery cell is not excessively large, and the normal operation of the current limiting IC and the normal operation of the charging circuit are ensured.
Drawings
Fig. 1 is a schematic diagram of a charging circuit in a terminal provided in the related art;
FIG. 2 is a flow chart of a charge control method according to an embodiment of the application;
FIG. 3 is a flow chart of a charging control method according to another embodiment of the application;
FIG. 4 is a flowchart of a charging control method according to another embodiment of the present application;
fig. 5 is a schematic structural diagram of a charging control device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The charging control method provided by the embodiment of the application can be applied to an application scene of charging the terminal through the adapter; of course, the present application can also be applied to other scenarios, which are not limited in the embodiment of the present application.
The terminal according to the embodiment of the application can be, but is not limited to, chargeable devices such as various notebook computers, smart phones, tablet computers, internet of things devices, portable wearable devices and the like, wherein the portable wearable devices can be smart watches, smart bracelets, headsets and the like.
In the traditional parallel double-cell technology, the output current of the adapter is respectively transmitted to two parallel cells in the terminal through two paths so as to realize the quick charge of the terminal battery. In general, in order to equalize the currents transmitted from the output current of the adapter to the two cells, a current limiting integrated circuit (integrated circuit, IC) is required to be disposed on the path of the small-capacity cell to limit the magnitude of the transmitted current flowing through the cell.
In the traditional parallel double-cell quick charging process, the current limiting value of the current limiting IC can be adjusted according to the output current requested by the terminal to the adapter, and the voltage difference between the two cells cannot be detected in real time in the process, but because the actual output current of the adapter is possibly smaller than the output current requested by the terminal to the adapter, the current limiting value of the current limiting IC set in the traditional technology is possibly unsuitable, so that the voltage difference between the two cells is larger, and the risk that the current limiting IC breaks down possibly exists.
According to the charging control method, the device, the electronic equipment, the storage medium and the program product, in the process of charging the terminal battery in the fast charging mode, the terminal detects the voltage difference between the first battery cell and the second battery cell according to the preset time interval, and adjusts the current limiting value of the current limiting IC connected with the second battery cell according to the voltage difference when the voltage difference between the first battery cell and the second battery cell is detected to meet the preset adjustment condition. Therefore, in the embodiment of the application, when the terminal detects that the voltage difference between the first battery cell and the second battery cell meets the preset adjustment condition in real time in the charging process, the current limiting value of the current limiting IC can be dynamically adjusted in real time according to the voltage difference between the first battery cell and the second battery cell, so that the voltage difference between the first battery cell and the second battery cell is not excessively large, and the normal operation of the current limiting IC and the normal operation of the charging circuit are ensured.
Fig. 1 is a schematic structural diagram of a charging circuit in a terminal provided in the related art, and as shown in fig. 1, the charging circuit may include, but is not limited to: the Power supply device comprises an interface for connecting with an adapter, a processor, a first switch circuit, a second switch circuit, a Power Management IC (PMIC), voltage pumps (Charge Pump) CP 1, CP2, a current limiting IC 1, a current limiting IC 2, a fuel gauge 1, a battery cell 1, a fuel gauge 2 and a battery cell 2, wherein the capacitance of the battery cell 1 is smaller than that of the battery cell 2. Illustratively, the interface may include, but is not limited to, a universal serial bus (Universal Serial Bus, USB) interface.
Illustratively, the processor, the first end of the first switch circuit, and the first end of the second switch circuit are respectively connected with the interfaces, the second end of the first switch circuit is respectively connected with the first end of the PMIC and the first end of the CP 1, the second end of the second switch circuit is connected with the first end of the CP2, the second end of the PMIC, the second end of the CP 1, the second end of the CP2, the first end of the current limiting IC 1, the first end of the current limiting IC 2, and the first end of the current meter 2 are all connected to the same point, the current limiting IC 1 and the current limiting IC 2 are connected in parallel, the second end of the current limiting IC 1 and the second end of the current limiting IC 2 are connected to the first end of the current meter 1, the second end of the current meter 1 is connected to the first end of the battery cell 1, the second end of the battery cell 2 is grounded, and the second end of the battery cell 2 is grounded. It should be noted that the processor is further connected to the first switch circuit, the second switch circuit, the PMIC, the CP 1, the CP2, the current limiting IC 1, the current limiting IC 2, the electricity meter 1, and the electricity meter 2 (not shown in the drawing), respectively, so that the processor controls the first switch circuit, the second switch circuit, the PMIC, the CP 1, the CP2, the current limiting IC 1, the current limiting IC 2, the electricity meter 1, and the electricity meter 2.
Illustratively, the first switch circuit and the second switch circuit are used for overvoltage protection, CP 1 and CP 2 are used for performing voltage regulation processing on the output voltage of the adapter, PMIC is used for judging the type of the adapter connected to the interface and controlling the common charging process, etc., current limiting IC 1 and current limiting IC 2 are used for limiting the magnitude of the transmission current flowing through the battery cell 1, electricity meter 1 is used for measuring the voltage of the battery cell 1, and electricity meter 2 is used for measuring the voltage of the battery cell 2.
It should be understood that if the current limiting accuracy of the current limiting IC meets the current limiting requirement, the charging circuit may be provided with one current limiting IC instead of the current limiting IC 1 and the current limiting IC 2 connected in parallel.
It should be noted that, if the current limiting IC 1 and the current limiting IC 2 are not provided in the charging circuit, the current flowing through the battery core 1 will be larger, so that the battery core 1 will be filled quickly and uncontrollably, while the current flowing through the battery core 2 is smaller, the situation that the voltage of the battery core 1 is high and the battery core 2 is judged to be full may occur, but the current of the battery core 2 is small and the battery core 2 is not full may occur, so that the charging time is longer, the quick charging effect is not achieved, and the voltage difference between the battery core 1 and the battery core 2 is larger, so that the risk that the current limiting IC is broken down may exist.
In an embodiment, fig. 2 is a schematic flow chart of a charging control method according to an embodiment of the present application, where the charging control method provided by the embodiment of the present application may be applied to a terminal, and for example, the terminal may include a first battery cell (e.g., a battery cell 1 in fig. 1) and a second battery cell (e.g., a battery cell 2 in fig. 1) connected in parallel, where a capacity of the second battery cell is greater than a capacity of the first battery cell. As shown in fig. 2, the method according to the embodiment of the present application may include the following steps:
Step S201, in the process of charging the terminal in the fast charging mode, detecting a voltage difference between the first battery cell and the second battery cell according to a preset time interval.
In this step, in the process of charging the battery of the terminal by using the fast charging mode, the terminal may detect the voltage of the first battery cell and the voltage of the second battery cell in real time according to a preset time interval, so as to obtain the voltage difference between the first battery cell and the second battery cell. The terminal may detect the voltage of the first battery cell and the voltage of the second battery cell in real time according to a timing period of a preset timer, thereby obtaining a voltage difference between the first battery cell and the second battery cell. It should be noted that, in the embodiment of the present application, the voltage difference between the first battery cell and the second battery cell may refer to an absolute value of the voltage difference between the first battery cell and the second battery cell.
For example, taking the charge control method provided by the embodiment of the present application as an example applied to the processor in the terminal shown in fig. 1, the processor may obtain, in real time, the voltage of the battery cell 1 (i.e., the voltage of the battery cell 1) detected by the battery gauge 1 and the voltage of the battery cell 2 (i.e., the voltage of the battery cell 2) detected by the battery gauge 2 according to the timing period (e.g., every 100 ms) of the timer, and obtain the voltage difference between the battery cell 1 and the battery cell 2 according to the voltage of the battery cell 1 detected by the battery gauge 1 and the voltage of the battery cell 2 detected by the battery gauge 2.
Step S202, when the voltage difference between the first battery cell and the second battery cell is detected to meet the preset adjustment condition, adjusting the current limiting value of the current limiting Integrated Circuit (IC) connected with the second battery cell according to the voltage difference.
In this step, when the terminal detects that the voltage difference between the first electric core and the second electric core meets the preset adjustment condition, the current limiting value of the current limiting integrated circuit IC connected with the second electric core can be dynamically adjusted in real time according to the voltage difference between the first electric core and the second electric core, so that the voltage difference between the first electric core and the second electric core is not excessively large.
In an exemplary embodiment, the terminal dynamically adjusts a current limit value of a current limit integrated circuit IC connected to the second battery cell in real time according to a voltage difference between the first battery cell and the second battery cell, so that the voltage difference between the first battery cell and the second battery cell satisfies a preset voltage difference range, where the preset voltage difference range may include: a voltage difference range between the second voltage difference threshold and the first voltage difference threshold (including the second voltage difference threshold and the first voltage difference threshold), the second voltage difference threshold being less than the first voltage difference threshold. For example, the first voltage difference threshold may be 150mv and the second voltage difference threshold may be 100mv.
The terminal may implement the adjustment of the current limit value of the current limit IC by storing the adjusted current limit value of the current limit IC in a register of the current limit IC.
Optionally, the preset adjustment conditions involved in the embodiment of the present application may include, but are not limited to: the number of times of detection greater than the first voltage difference threshold is greater than a preset number of times (e.g., 20 times) within a preset detection duration, or the number of times of detection less than the second voltage difference threshold is greater than a preset number of times within a preset detection duration, where the preset detection duration may include a duration corresponding to an increase in the value of the counter from zero to a preset counter threshold (e.g., 20).
For example, the charge control method provided by the embodiment of the present application is applied to the processor in the terminal shown in fig. 1, and when the processor detects that the voltage difference between the battery cell 1 and the battery cell 2 meets the preset adjustment condition, the processor can adjust the current limiting value of the current limiting IC 1 and the current limiting value of the current limiting IC 2 connected to the battery cell 1 according to the voltage difference between the battery cell 1 and the battery cell 2.
In the above charge control method, the terminal detects the voltage difference between the first battery cell and the second battery cell according to a preset time interval in the process of charging the terminal battery in the fast charge mode, and adjusts the current limiting value of the current limiting IC connected with the second battery cell according to the voltage difference when detecting that the voltage difference between the first battery cell and the second battery cell meets a preset adjustment condition. Therefore, in the embodiment of the application, when the terminal detects that the voltage difference between the first battery cell and the second battery cell meets the preset adjustment condition in real time in the charging process, the current limiting value of the current limiting IC can be dynamically adjusted in real time according to the voltage difference between the first battery cell and the second battery cell, so that the voltage difference between the first battery cell and the second battery cell is not excessively large, and the normal operation of the current limiting IC and the normal operation of the charging circuit are ensured.
In an embodiment, fig. 3 is a schematic flow chart of a charging control method according to another embodiment of the present application, and on the basis of the foregoing embodiment, an implementation manner of determining whether a preset adjustment condition is met is described in the embodiment of the present application, and as shown in fig. 3, the method according to the embodiment of the present application may include the following steps:
step S301, comparing the voltage difference with a preset voltage difference threshold value to determine a counter value.
In this step, the terminal may compare the voltage difference between the first battery cell and the second battery cell with a preset voltage difference threshold, and determine a value of the counter according to a magnitude relation between the voltage difference and the preset voltage difference threshold, where the counter may include: the first counter is used for recording the times of detecting that the voltage difference between the first battery cell and the second battery cell is larger than a first voltage difference threshold value in a preset detection time period, and the second counter is used for recording the times of detecting that the voltage difference between the first battery cell and the second battery cell is smaller than a second voltage difference threshold value in the preset detection time period.
In one possible implementation, if the voltage difference between the first battery cell and the second battery cell is greater than the first voltage difference threshold, the terminal may increment the value of the first counter by 1 and zero the value of the second counter, so that the second counter counts again from zero.
In another possible implementation manner, if the voltage difference between the first electric core and the second electric core is not greater than the first voltage difference threshold value, and the voltage difference between the first electric core and the second electric core is not less than the second voltage difference threshold value, that is, the voltage difference between the first electric core and the second electric core meets the preset voltage difference range, the terminal may clear the value of the first counter and the value of the second counter, so that the first counter and the second counter start counting again from zero.
In another possible implementation manner, if the voltage difference between the first battery cell and the second battery cell is smaller than the second voltage difference threshold, the terminal may increment the value of the second counter by 1 and zero the value of the first counter, so that the first counter counts from zero again.
It will be appreciated that each time the terminal detects a voltage difference between the first and second cells, it will compare the voltage difference between the first and second cells with a preset voltage difference threshold to determine the value of the counter.
Step S302, determining whether the voltage difference meets a preset adjustment condition according to the value of the counter.
In this step, the terminal may determine whether the voltage difference satisfies a preset adjustment condition according to a comparison between a value of a counter and a preset counter threshold, where the counter may include, but is not limited to, a first counter and a second counter.
Optionally, if the value of the first counter is greater than a preset counter threshold (e.g. 20), or the value of the second counter is greater than the counter threshold, the terminal may determine that the voltage difference between the first battery cell and the second battery cell meets a preset adjustment condition, so as to adjust the current limiting value of the current limiting IC according to the voltage difference between the first battery cell and the second battery cell. In the embodiment of the application, the terminal determines whether the voltage difference meets the preset adjustment condition by comparing the value of the counter with the preset counter threshold value, so that frequent adjustment of the current limiting value of the current limiting IC due to the fact that the voltage difference between the first battery core and the second battery core is detected to be not in the preset voltage difference range at a certain time can be avoided, and the charging efficiency of the charging circuit is guaranteed.
In the following embodiments of the present application, the implementation manner of adjusting the current limit value of the current limit IC according to the voltage difference between the first battery cell and the second battery cell in the step S202 is described according to the difference of the preset adjustment conditions satisfied by the voltage difference between the first battery cell and the second battery cell.
In one possible implementation manner, if the value of the first counter is greater than the preset counter threshold, the terminal may subtract the current limiting value of the current limiting IC from the first adjustment value to obtain a new current limiting value.
In this implementation manner, if the value of the first counter is greater than the preset counter threshold, that is, the number of times of detection that the value is greater than the first voltage difference threshold is greater than the preset number of times within the preset detection duration, and the current limiting value of the current limiting IC is too large to effectively limit the transmission current flowing through the second electric core, the terminal may subtract the current limiting value of the current limiting IC from the first adjustment value to obtain a new current limiting value (that is, the adjusted current limiting value), where the first adjustment value may be a preset adjustment value, for example, 50ma.
In another possible implementation manner, if the value of the second counter is greater than the preset counter threshold, the terminal may add the current limiting value of the current limiting IC to the second adjustment value to obtain a new current limiting value.
In this implementation manner, if the value of the second counter is greater than the counter threshold, that is, the number of times of detection that the value is less than the second voltage difference threshold within the preset detection duration is greater than the preset number of times, and the current limiting value of the current limiting IC is too small, so that the transmission current flowing through the second electric core is too small, the terminal may add the current limiting value of the current limiting IC to the second adjustment value to obtain a new limiting value (that is, the adjusted limiting value), where the second adjustment value may be a preset adjustment value, for example, 50ma.
Of course, the terminal may also adjust the current limiting value of the current limiting IC by other manners according to the voltage difference between the first battery cell and the second battery cell, which is not limited in the embodiment of the present application.
In the charging control method, the terminal compares the voltage difference with the preset voltage difference threshold in real time to determine the value of the counter, and determines whether the voltage difference meets the preset adjustment condition according to the value of the counter, so that when the voltage difference between the first battery core and the second battery core is detected to meet the preset adjustment condition, the current limiting value of the current limiting IC connected with the second battery core can be dynamically adjusted in real time according to the voltage difference, and the voltage difference between the first battery core and the second battery core can be prevented from being excessively large, thereby being beneficial to ensuring the normal operation of the current limiting IC and the normal operation of the charging circuit.
Further, on the basis of the above embodiment, when the terminal detects that the terminal establishes a connection with the adapter, or when detecting that the output current of the adapter changes, the terminal adjusts the current limit value of the current limit IC according to the current output current of the adapter, and sets the value of the counter to zero.
For example, when the terminal detects that the terminal establishes a connection with the adapter or the terminal first requests an output current from the adapter, the terminal may adjust the current limit value of the current limit IC according to the current output current of the adapter, and set the value of the counter to zero, so that the counter starts counting from zero.
In another example, when detecting that the output current of the adapter changes or that the output current requested by the terminal to the adapter changes, the terminal may adjust the current limit value of the current limit IC according to the current output current of the adapter, and zero the value of the counter so as to restart the counter from zero.
The following embodiments of the present application describe an implementation of adjusting the current limit value of the current limit IC according to the current output current of the adapter.
In one possible implementation manner, determining a target current limit value corresponding to the current output current of the adapter according to a corresponding relation between the output current and the current limit value; and adjusting the current limiting value of the current limiting IC according to the target current limiting value.
In this implementation manner, the terminal may determine a target current limit value corresponding to the current output current of the adapter according to a correspondence between the output current and the current limit value, where the correspondence between the output current and the current limit value is used to indicate a correspondence between a plurality of output currents and the current limit value corresponding to the output current. Further, the terminal may take the target current limit value corresponding to the current output current as a new current limit value (i.e., an adjusted current limit value).
For example, assuming that the correspondence between the output current and the current limit value is used to indicate the correspondence between the output current 1 and the current limit value 1, the correspondence between the output current 2 and the current limit value 2, and the correspondence between the output current 3 and the current limit value 3, the terminal may determine, according to the correspondence between the output current and the current limit value, that the target current limit value corresponding to the current output current of the adapter is the current limit value 2 corresponding to the output current 2.
In another possible implementation, the current limit value of the current limiting IC is adjusted by scaling the present output current with a preset value.
In this implementation manner, the terminal may multiply the current output current by a preset ratio (for example, 1/2) to obtain a new current value (i.e., an adjusted current limit value), or the terminal may multiply the current output current by the preset ratio (for example, 1/2) to obtain a current value, and then add the current value to the preset current value to obtain the new current value (i.e., the adjusted current limit value).
Of course, the terminal may also adjust the current limiting value of the current limiting IC according to the current output current of the adapter in other manners, which is not limited in the embodiment of the present application.
Further, on the basis of the above embodiment, the processing procedure of the terminal before the step S201 is described in the embodiment of the present application.
In one possible implementation manner, when the voltage difference between the first battery cell and the second battery cell is detected to be greater than the first voltage difference threshold and smaller than or equal to the third voltage difference threshold, the battery cell with the larger voltage in the first battery cell and the second battery cell is controlled to charge the battery cell with the smaller voltage.
In this implementation manner, assuming that the voltage of the first electric core is greater than the voltage of the second electric core, when the terminal detects that the voltage difference between the first electric core and the second electric core is greater than the first voltage difference threshold and less than or equal to the third voltage difference threshold, the terminal can control the electric core with the greater voltage in the first electric core and the second electric core to charge the electric core with the smaller voltage, that is, control the first electric core to charge the second electric core, so that the voltage difference between the first electric core and the second electric core can meet the preset fast charging voltage difference range as soon as possible, so as to start the fast charging mode as soon as possible. For example, the third voltage difference threshold may be 400mv.
In another possible implementation manner, when the voltage difference between the first battery cell and the second battery cell is detected to be greater than the third voltage difference threshold, the battery cell with smaller voltage in the first battery cell and the second battery cell is charged through the common charging mode.
In this implementation manner, assuming that the voltage of the first electric core is greater than the voltage of the second electric core, when the voltage difference between the first electric core and the second electric core is greater than the third voltage difference threshold, the terminal can charge the electric core with smaller voltage in the first electric core and the second electric core, namely, the second electric core, through the common charging mode, so that the voltage difference between the first electric core and the second electric core can meet the preset fast charging voltage difference range as soon as possible, and the fast charging mode can be started as soon as possible.
In another possible implementation manner, when the terminal detects that the voltage difference between the first battery cell and the second battery cell is smaller than or equal to a first voltage difference threshold (i.e., the voltage difference between the first battery cell and the second battery cell meets a preset fast charging voltage difference range), the terminal determines that the adapter is legal equipment according to a fast charging signal sent by the adapter, and starts a fast charging mode when detecting that the output voltage of the adapter is greater than the voltage of the first battery cell and the voltage of the second battery cell.
It should be understood that the fast charging signal may carry the identification information of the adapter, so that the terminal may determine whether the adapter is a legal device according to the identification information of the adapter; if the identification information of the adapter belongs to the identification information in the preset identification information set, the terminal can determine that the adapter is legal equipment. Of course, the terminal may also determine whether the adapter is a legal device in other manners, which is not limited in the embodiment of the present application.
In an embodiment, fig. 4 is a schematic flow chart of a charging control method according to another embodiment of the present application, and on the basis of the above embodiment, with reference to fig. 1, the overall flow chart of the charging control method according to the embodiment of the present application is described, and as shown in fig. 4, the method according to the embodiment of the present application may include the following steps:
Step S401, the processor of the terminal detects that the interface is connected to the adapter.
In this step, the processor of the terminal may control the PMIC to communicate with the adapter when detecting that the interface is connected to the adapter. Further, the processor judges whether the charger type is a special charging port (Dedicated Charging Port, DCP) according to the communication signal sent by the adapter received by the PMIC; if the charger type is determined to be the DCP type, step S402 is performed.
It should be noted that, the processor may refer to the related content in the related art, and is not limited herein, according to how the communication signal sent by the adapter received by the PMIC determines whether the charger type is the DCP type.
In step S402, the processor detects whether the voltage value between the battery cell 1 and the battery cell 2 is less than or equal to the first voltage threshold.
If the voltage value between the battery cell 1 and the battery cell 2 is greater than the first voltage threshold, executing step S403; if the voltage value between the battery cell 1 and the battery cell 2 is less than or equal to the first voltage threshold, step S406 is performed.
In step S403, the processor detects whether the voltage value between the battery cell 1 and the battery cell 2 is less than or equal to the third voltage threshold.
If the voltage value between the battery cell 1 and the battery cell 2 is less than or equal to the third voltage threshold, executing step S404; if the voltage value between the battery cell 1 and the battery cell 2 is greater than the third voltage threshold, step S405 is performed.
In step S404, the processor controls the larger voltage cell of the cells 1 and 2 to charge the smaller voltage cell.
In step S405, the processor controls the PMIC to charge the cell with smaller voltage in the cell 1 and the cell 2 in the normal charging mode.
Further, the processor may return to executing step S402 after executing step S404 or step S405.
In step S406, the processor starts the fast charge mode.
In this step, the processor determines that the adapter is a legal device according to the fast charging signal sent by the adapter, and starts the fast charging mode when detecting that the output voltage of the adapter is greater than the voltage of the battery cell 1 and the voltage of the battery cell 2.
The processor receives a fast-charging signal sent by the adapter through resetting a VOOCPHY (physical logic module for receiving and transmitting vooc fast-charging information) in CP 1 or CP 2, and judges whether the adapter is a legal device according to the fast-charging signal; further, when the processor determines that the adapter is a legal device, it determines whether the output voltage of the adapter is greater than the voltage of the battery cell 1 and the voltage of the battery cell 2, and when detecting that the output voltage of the adapter is greater than the voltage of the battery cell 1 and the voltage of the battery cell 2, starts the fast charge mode by sending an enable signal to CP 1 and CP 2.
When the processor detects that any one of the electricity meter 1, the electricity meter 2, the current limiting IC 1 or the current limiting IC2 has abnormal communication, the fast charging mode is not started.
Step S407, the processor controls CP 1 or CP 2 to request an output current from the adapter.
Step S408, the processor determines whether the output current is requested for the first time or whether the requested output current changes.
If it is determined that the output current is requested for the first time or that the requested output current changes, step S409 is performed. It should be noted that, when the processor determines that the output current is requested for the first time, step S410 may also be executed.
If it is determined that
Step S409, the processor adjusts the current limit value of the current limit IC according to the current output current of the adapter, and sets the value of the counter to zero.
In step S410, the processor starts a timer to detect the voltage difference between the battery cells 1 and 2.
In step S411, the processor determines whether the voltage difference between the battery cell 1 and the battery cell 2 is greater than a first voltage difference threshold.
If the voltage difference between the battery cell 1 and the battery cell 2 is greater than the first voltage difference threshold, step S412 is performed, and step S416 is performed; if the voltage difference between the battery cell 1 and the battery cell 2 is not greater than the first voltage difference threshold, step S413 is performed.
In step S412, the processor increments the value of the first counter by 1 and clears the value of the second counter.
In step S413, the processor determines whether the voltage difference between the battery cell 1 and the battery cell 2 is less than a second voltage difference threshold.
If the voltage difference between the battery cell 1 and the battery cell 2 is smaller than the second voltage difference threshold, step S414 is performed, and then step S418 is performed; otherwise, step S415 is performed.
In step S414, the processor increments the value of the second counter by 1, and clears the value of the first counter.
In step S415, the processor clears the value of the first counter and the value of the second counter.
In step S416, the processor determines whether the value of the first counter is greater than a preset counter threshold.
If the value of the first counter is greater than the preset counter threshold, the processor determines that the voltage difference between the battery cell 1 and the battery cell 2 meets the preset adjustment condition, so as to execute step S417 and step S415.
In step S417, the processor subtracts the current limit value of the current limit IC from the first adjustment value to obtain a new current limit value.
Illustratively, the current limiting IC in the embodiment of the present application includes the current limiting IC 1 and the current limiting IC 2, that is, the processor may adjust the current limiting value of the current limiting IC 1 and the current limiting value of the current limiting IC 2 in the same adjustment manner.
In step S418, the processor determines whether the value of the second counter is greater than the counter threshold.
If the value of the second counter is greater than the counter threshold, the processor determines that the voltage difference between the battery cell 1 and the battery cell 2 meets the preset adjustment condition, so as to execute step S419 and step S415.
Step S419, the processor adds the current limit value of the current limit IC to the second adjustment value to obtain a new current limit value.
The implementation manner of each step in the embodiment of the present application may refer to the relevant content in the foregoing embodiment of the present application, which is not described herein again.
It should be noted that, the steps S402 to S405 may be performed repeatedly until the fast charging mode is turned on, and the steps S407 to S409 and the steps S410 to S419 may be performed repeatedly until the fast charging process is completed.
In summary, in the embodiment of the present application, the processor detects in real time whether the voltage difference between the battery cell 1 and the battery cell 2 meets the preset adjustment condition in the charging process, and when detecting that the voltage difference between the battery cell 1 and the battery cell 2 meets the preset adjustment condition, the processor can dynamically adjust the current limiting value of the current limiting IC 1 and the current limiting value of the current limiting IC 2 in real time according to the voltage difference between the battery cell 1 and the battery cell 2, so that the voltage difference between the battery cell 1 and the battery cell 2 is not excessively large, which is beneficial to ensuring the normal operation of the current limiting IC 1 and the current limiting IC 2 and the normal operation of the charging circuit.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
Based on the same inventive concept, the embodiment of the application also provides a charging control device for realizing the charging control method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in one or more embodiments of the charge control device provided below may refer to the limitation of the charge control method hereinabove, and will not be repeated herein.
In one embodiment, fig. 5 is a schematic structural diagram of a charging control device according to an embodiment of the present application, where the charging control device according to the embodiment of the present application may be applied to a terminal, where the terminal may include, but is not limited to, a first battery cell and a second battery cell that are parallel, and a capacity of the second battery cell is greater than a capacity of the first battery cell. As shown in fig. 5, the charge control device according to the embodiment of the present application may include: a detection module 501 and a first adjustment module 502.
The detection module 501 is configured to detect a voltage difference between the first battery cell and the second battery cell according to a preset time interval in a process of charging the terminal in a fast charging mode;
the first adjusting module 502 is configured to adjust a current limiting value of a current limiting integrated circuit IC connected to the second electric core according to the voltage difference when it is detected that the voltage difference between the first electric core and the second electric core meets a preset adjusting condition.
In one embodiment, the apparatus further comprises:
the first determining module is used for comparing the voltage difference with a preset voltage difference threshold value and determining the value of a counter;
and the second determining module is used for determining whether the voltage difference meets a preset adjusting condition according to the value of the counter.
In one embodiment, the first determining module is specifically configured to:
if the voltage difference is greater than a first voltage difference threshold value, adding 1 to the value of the first counter, and resetting the value of the second counter;
if the voltage difference is not greater than the first voltage difference threshold and the voltage difference is not less than the second voltage difference threshold, resetting the value of the first counter and the value of the second counter; the second voltage difference threshold is less than the first voltage difference threshold;
and if the voltage difference is smaller than the second voltage difference threshold value, adding 1 to the value of the second counter, and resetting the value of the first counter.
In one embodiment, the second determining module is specifically configured to:
and if the value of the first counter is larger than a preset counter threshold value or the value of the second counter is larger than the counter threshold value, determining that the voltage difference meets the preset adjustment condition.
In one embodiment, the first adjustment module 502 is specifically configured to: and if the value of the first counter is larger than the preset counter threshold value, subtracting a first adjustment value from the current limiting value of the current limiting IC to obtain a new current limiting value.
In one embodiment, the first adjustment module 502 is specifically configured to: and if the value of the second counter is larger than the counter threshold value, adding the current limiting value of the current limiting IC to a second adjustment value to obtain a new current limiting value.
In one embodiment, the apparatus further comprises:
the second adjusting module is used for adjusting the current limiting value of the current limiting IC according to the current output current of the adapter when the terminal and the adapter are detected to be connected or the output current of the adapter is detected to be changed;
and the setting module is used for setting the value of the counter to zero.
In one embodiment, the second adjustment module is specifically configured to:
determining a target current limit value corresponding to the current output current of the adapter according to the corresponding relation between the output current and the current limit value;
and adjusting the current limiting value of the current limiting IC according to the target current limiting value.
In one embodiment, the second adjustment module is specifically configured to:
and regulating the current limiting value of the current limiting IC according to the current output current and a preset proportion.
The charging control device provided by the embodiment of the application can be used for executing the technical scheme in the embodiment of the charging control method of the application, and the implementation principle and the technical effect are similar, and are not repeated here.
Each of the modules in the above-described charge control device may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or independent of a processor in the electronic device, or may be stored in software in a memory in the electronic device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application, and the electronic device may be a terminal, for example, and an internal structure diagram thereof may be shown in fig. 6. The electronic device may include a processor, memory, and a communication interface connected by a system bus. Wherein the processor of the electronic device is configured to provide computing and control capabilities. The memory of the electronic device includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The communication interface of the electronic device is used for conducting wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by the processor to implement the technical scheme in the embodiment of the charge control method of the present application, and its implementation principle and technical effects are similar, and will not be repeated here.
The electronic device may further include a display screen and an input device, where the display screen may be a liquid crystal display screen or an electronic ink display screen, and the input device may be a touch layer covered on the display screen, a key, a track ball, or a touch pad disposed on a housing of the electronic device, or an external keyboard, a touch pad, or a mouse.
It will be appreciated by those skilled in the art that the structure shown in fig. 6 is merely a block diagram of a portion of the structure associated with the present inventive arrangements and is not limiting of the electronic device to which the present inventive arrangements are applied, and that a particular electronic device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In an embodiment, an electronic device is further provided, including a memory and a processor, where the memory stores a computer program, and the processor implements the technical scheme in the foregoing embodiment of the charge control method of the present application when executing the computer program, and the implementation principle and the technical effect are similar, and are not repeated herein.
In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, where the computer program when executed by a processor implements the technical solution in the foregoing embodiment of the charging control method of the present application, and the implementation principle and technical effects are similar, and are not repeated herein.
In one embodiment, a computer program product is provided, which includes a computer program, where the computer program when executed by a processor implements the technical solution in the foregoing embodiment of the charging control method of the present application, and the implementation principle and technical effects are similar, and are not repeated herein.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.
Claims (13)
1. A method of charge control, the method being applied to a terminal comprising a first cell and a second cell connected in parallel, the second cell having a capacity greater than the capacity of the first cell, the method comprising:
in the process of charging the terminal by adopting a quick charging mode, detecting the voltage difference between the first battery cell and the second battery cell according to a preset time interval;
When the voltage difference between the first battery core and the second battery core is detected to meet the preset adjustment condition, adjusting the current limiting value of the current limiting Integrated Circuit (IC) connected with the second battery core according to the voltage difference.
2. The method according to claim 1, wherein the method further comprises:
comparing the voltage difference with a preset voltage difference threshold value to determine a value of a counter;
and determining whether the voltage difference meets a preset adjusting condition according to the value of the counter.
3. The method of claim 2, wherein comparing the voltage difference to a preset voltage difference threshold value, determining a counter value, comprises:
if the voltage difference is greater than a first voltage difference threshold value, adding 1 to the value of the first counter, and resetting the value of the second counter;
if the voltage difference is not greater than the first voltage difference threshold and the voltage difference is not less than the second voltage difference threshold, resetting the value of the first counter and the value of the second counter; the second voltage difference threshold is less than the first voltage difference threshold;
and if the voltage difference is smaller than the second voltage difference threshold value, adding 1 to the value of the second counter, and resetting the value of the first counter.
4. A method according to claim 3, wherein said determining whether said voltage difference satisfies a preset adjustment condition based on said counter value comprises:
and if the value of the first counter is larger than a preset counter threshold value or the value of the second counter is larger than the counter threshold value, determining that the voltage difference meets the preset adjustment condition.
5. The method according to claim 4, wherein adjusting the current limit value of the current limit integrated circuit IC connected to the second cell according to the voltage difference when the voltage difference between the first cell and the second cell is detected to satisfy a preset adjustment condition, comprises:
and if the value of the first counter is larger than the preset counter threshold value, subtracting a first adjustment value from the current limiting value of the current limiting IC to obtain a new current limiting value.
6. The method according to claim 4, wherein adjusting the current limit value of the current limit integrated circuit IC connected to the second cell according to the voltage difference when the voltage difference between the first cell and the second cell is detected to satisfy a preset adjustment condition, comprises:
And if the value of the second counter is larger than the counter threshold value, adding the current limiting value of the current limiting IC to a second adjustment value to obtain a new current limiting value.
7. The method according to any one of claims 2-6, further comprising:
and when the terminal and the adapter are detected to be connected, or when the output current of the adapter is detected to be changed, the current limiting value of the current limiting IC is adjusted according to the current output current of the adapter, and the value of the counter is set to be 0.
8. The method of claim 7, wherein said adjusting the current limit value of the current limit IC based on the present output current of the adapter comprises:
determining a target current limit value corresponding to the current output current of the adapter according to the corresponding relation between the output current and the current limit value;
and adjusting the current limiting value of the current limiting IC according to the target current limiting value.
9. The method of claim 7, wherein said adjusting the current limit value of the current limit IC based on the present output current of the adapter comprises:
and regulating the current limiting value of the current limiting IC according to the current output current and a preset proportion.
10. A charge control device, the device being applied to a terminal comprising a first cell and a second cell connected in parallel, the second cell having a capacity greater than the capacity of the first cell, the device comprising:
the detection module is used for detecting the voltage difference between the first battery cell and the second battery cell according to a preset time interval in the process of charging the terminal by adopting a quick charging mode;
and the adjusting module is used for adjusting the current limiting value of the current limiting Integrated Circuit (IC) connected with the second battery core according to the voltage difference when the voltage difference between the first battery core and the second battery core is detected to meet the preset adjusting condition.
11. An electronic device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1-9 when the computer program is executed.
12. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1-9.
13. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any one of claims 1-9.
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| CN202210405804.4A CN116961155A (en) | 2022-04-18 | 2022-04-18 | Charging control method, device, electronic apparatus, storage medium, and program product |
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