CN113809791A - Charging control method and device, terminal equipment and storage medium - Google Patents
Charging control method and device, terminal equipment and storage medium Download PDFInfo
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- CN113809791A CN113809791A CN202110920959.7A CN202110920959A CN113809791A CN 113809791 A CN113809791 A CN 113809791A CN 202110920959 A CN202110920959 A CN 202110920959A CN 113809791 A CN113809791 A CN 113809791A
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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
- H02J7/007—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
- H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
- H02J7/00718—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current in response to charge current gradient
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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
- H02J7/00302—Overcharge protection
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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
- H02J7/007—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
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The invention discloses a charging control method, a charging control device, terminal equipment and a storage medium, wherein the method comprises the following steps: acquiring battery voltage, and determining a charging state corresponding to the battery voltage according to the battery voltage; determining a charging current corresponding to the charging state according to the charging state; and controlling the charging of the battery according to the charging current. The invention determines the charging state according to the voltage of the battery to judge which charging stage is in, so that the charging current can be determined, the charging is stopped according to the charging current, and the charging control is realized.
Description
Technical Field
The present invention relates to the field of charging technologies, and in particular, to a charging control method and apparatus, a terminal device, and a storage medium.
Background
The conventional terminal equipment charging technology comprises several stages of pre-charging, constant current, constant voltage and back charging, wherein the constant current stage fixes the charging current, for example, when the battery voltage reaches the maximum voltage of 4.4V of the battery, the constant voltage mode is switched to, the current is gradually reduced in the constant voltage mode, and the charging is stopped when the current is reduced to the cut-off current (200 mA). Most of the charging process is in the constant current and constant voltage stage, especially in the constant voltage stage, the current dropping speed is very slow, which also causes the whole charging process to consume a long time and affects the charging efficiency.
Thus, there is a need for improvements and enhancements in the art.
Disclosure of Invention
The present invention is to provide a charging control method, apparatus, terminal device and storage medium, aiming at solving the problems that the charging process is in constant current and constant voltage stage for most of the time, especially in constant voltage stage, the current dropping speed is very slow, the whole charging process consumes a long time, and the charging efficiency is affected.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
in a first aspect, the present invention provides a charging control method, wherein the method includes:
acquiring battery voltage, and determining a charging state corresponding to the battery voltage according to the battery voltage;
determining a charging current corresponding to the charging state according to the charging state;
and controlling the charging process of the battery according to the charging current.
In one implementation, the obtaining a battery voltage and determining a charging state corresponding to the battery voltage according to the battery voltage includes:
acquiring the battery voltage, and determining a voltage interval where the battery voltage is located;
and determining the charging state corresponding to the voltage interval according to the voltage interval.
In one implementation, the determining, according to the voltage interval, a charging state corresponding to the voltage interval includes:
if the voltage interval is smaller than a first voltage value, determining that the charging state is a first charging stage;
if the voltage interval is greater than the first voltage value and less than the second voltage value, determining that the charging state is a second charging stage;
and if the voltage interval is larger than the second voltage value, determining that the charging state is a third charging stage.
In one implementation, the determining a charging current corresponding to the charging state according to the charging state includes:
if the charging state is a first charging stage, determining that the charging current is a first current value;
if the charging state is a second charging stage, determining that the charging current is a second current value;
if the charging state is a second charging stage, determining that the charging current is a second current value; wherein the first current value > second current value > third current value.
In one implementation, the determining a charging current corresponding to the charging state according to the charging state further includes:
if the charging state is switched from the third charging stage to the first charging stage again, the charging current is a fourth charging current, and the fourth charging current is smaller than the third charging current;
if the charging state is switched from the first charging stage to the second charging stage again, the charging current is a fifth charging current, and the fifth charging current is smaller than the fourth charging current.
In one implementation, the determining the battery capacity according to the charging current, and stopping charging when the battery capacity reaches a preset value includes:
determining the current entering the battery according to the charging current;
and if the current entering the battery is smaller than the specified current value, determining that the battery capacity is 100%.
In one implementation, the determining a battery charge based on the current into the battery includes:
and if the current entering the battery is smaller than the specified current value, controlling the battery to stop charging.
In a second aspect, an embodiment of the present invention further provides a charging control apparatus, where the apparatus includes:
the charging state determining module is used for acquiring battery voltage and determining a charging state corresponding to the battery voltage according to the battery voltage;
the charging current determining module is used for determining the charging current corresponding to the charging state according to the charging state;
and the charging stop control module is used for controlling the charging process of the battery according to the charging current.
In a third aspect, an embodiment of the present invention further provides a terminal device, where the terminal device 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 processor executes the charging control program, the step of the charging control method in any one of the above schemes is implemented.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a charging control program is stored on the computer-readable storage medium, and when the charging control program is executed by a processor, the charging control method according to any one of the above aspects is implemented.
Has the advantages that: compared with the prior art, the invention provides a charging control method, firstly, the battery voltage is obtained, and the charging state corresponding to the battery voltage is determined according to the battery voltage; determining a charging current corresponding to the charging state according to the charging state; and controlling the charging process of the battery according to the charging current. The charging state is determined according to the voltage of the battery so as to judge which charging stage the battery is in, so that the charging current can be determined, the charging process of the battery can be controlled according to the charging current, if the charging current drops to a preset value, the battery is controlled to stop charging, the electric quantity is charged to 100%, and the charging efficiency is effectively improved.
Drawings
Fig. 1 is a flowchart of a specific implementation of a charging control method according to an embodiment of the present invention.
Fig. 2 is a flowchart of a charging phase when the charging control method provided by the embodiment of the present invention is specifically applied.
Fig. 3 is a schematic block diagram of a charge control device according to an embodiment of the present invention.
Fig. 4 is a schematic block diagram of an internal structure of a terminal device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Research shows that the conventional terminal equipment charging technology comprises several stages of pre-charging, constant current, constant voltage and back charging, wherein the constant current stage fixes the charging current, for example, when the voltage of a battery reaches the maximum voltage of 4.4V of the battery, the constant voltage mode is switched to, the current is gradually reduced in the constant voltage mode, and the charging is stopped when the current is reduced to cut-off current (200 mA). Most of the charging process is in the constant current and constant voltage stage, especially in the constant voltage stage, the current dropping speed is very slow, which also causes the whole charging process to consume a long time and affects the charging efficiency.
In order to solve the problems in the prior art, the present embodiment provides a charging control method, and according to the charging control method of the present embodiment, a charging state can be determined by a battery voltage to determine which charging stage is being performed, so that a charging current can be determined, then a battery capacity is determined according to the charging current, and charging is stopped in time, so that charging control is implemented, and charging efficiency is effectively improved. In specific implementation, the embodiment first obtains a battery voltage, and determines a charging state corresponding to the battery voltage according to the battery voltage; determining a charging current corresponding to the charging state according to the charging state; and determining the electric quantity of the battery according to the charging current, and stopping charging when the electric quantity of the battery reaches a preset value.
For example, when performing charging control, first obtaining the battery voltage of 7V, at this time, determining that the charging state at this time is the first stage, determining how much charging current is at this time according to this first stage, for example, the charging current is 3A, then determining whether charging can be performed fully by using the charging current, and in the process of continuing charging, this embodiment may also continuously obtain the battery voltage, and repeatedly determine the corresponding charging state, so as to obtain the corresponding charging current. When the charging current meets a certain condition, the charging current indicates that the terminal equipment can be fully charged according to the charging current, so that the charging electric quantity can be acquired, the charging is stopped in time after the charging current is fully charged, and the charging efficiency is improved.
Exemplary method
The charging control method of the embodiment can be applied to terminal devices, such as mobile phones, portable computers and other terminal devices. As shown in fig. 1, when the charge control method is executed, the method includes the steps of:
step S100, acquiring a battery voltage, and determining a charging state corresponding to the battery voltage according to the battery voltage.
In this embodiment, after the battery voltage is obtained, a voltage interval in which the battery voltage is located may be determined according to the battery voltage, and then the charging state corresponding to the battery voltage may be determined according to the voltage interval. For example, a plurality of voltage intervals are preset, each voltage interval corresponds to a range, and after the battery voltage is obtained, the corresponding voltage interval can be found according to the battery voltage in the embodiment, so that the corresponding charging state is determined according to the voltage interval. In this embodiment, if the voltage interval is smaller than the first voltage value, it is determined that the charging state is the first charging stage; if the voltage interval is greater than the first voltage value and less than the second voltage value, determining that the charging state is a second charging stage; and if the voltage interval is larger than the second voltage value, determining that the charging state is a third charging stage. For example, referring to fig. 2, if the battery voltage Vbat is less than 8.36V (i.e., the voltage interval is less than 8.36V, and 8.36V is the first voltage value), the state of charge is a first charging phase CC1, in which the charging current ibus at the input terminal is 3A (i.e., the first current value), and the battery is a two-cell series connection, so the current Ibat entering the battery is 6A. As the battery continues to charge, the battery voltage also changes as the charging continues. When the battery voltage Vbat rises above 8.36V and is lower than 8.4V (voltage interval is 8.36-8.4), the state of charge at this time is the second charge stage CC 2. In this charging phase, the charging current ibus is 2.8A (i.e., the second current value is 2.8A), and the current Ibat into the battery is 5.6A. If the battery voltage Vbat rises to 8.4V and is less than 8.9V (voltage interval is 8.4-8.9), the state of charge at this time is the third charge phase CC 3. During this charging phase, the charging current at the input is 2.25A (i.e., the third current value is 2.25A), and the current Ibat into the battery is 2.25 × 2 — 4.5A.
The battery voltage continues to rise as the battery continues to charge. And if the charging state is determined to be switched from the third charging stage to the first charging stage again according to the battery voltage, the charging current is a fourth charging current, and the fourth charging current is smaller than the third charging current. And if the charging state is switched from the first charging stage to the second charging stage again, the charging current is a fifth charging current, and the fifth charging current is smaller than the fourth charging current. For example, when the battery voltage continues to rise to 8.9V, the state of charge switches to the first charging phase CC1, the maximum battery voltage is limited to 8.9V, the charging current starts to slowly decrease, and when the battery-entering current Ibat is less than 3.5A, the second charging phase CC2 is entered. At this point, the battery voltage is raised to 8.98V and then the battery terminal current continues to be monitored.
And S200, determining a charging current corresponding to the charging state according to the charging state.
In this embodiment, as charging is continued, the charging voltage also changes continuously, and if it is determined that the charging state is the first charging stage according to the charging voltage, the charging current is determined to be a first current value; if the charging state is a second charging stage, determining that the charging current is a second current value; if the charging state is a second charging stage, determining that the charging current is a second current value; wherein the first current value > second current value > third current value. As in the example above, when the state of charge is determined to be the first charge phase CC1, in which the charging current ibus at the input terminal is 3A (i.e., the first current value), the current Ibat into the battery is 6A because the battery is a two-cell series. As the battery continues to charge, the battery voltage also changes as the charging continues. When the state of charge is the second charge phase CC 2. In this charging phase, the charging current ibus is 2.8A (i.e., the second current value is 2.8A), and the current Ibat into the battery is 5.6A. When it is determined that the state of charge is the third charge phase CC 3. During this charging phase, the charging current at the input is 2.25A (i.e., the third current value is 2.25A), and the current Ibat into the battery is 2.25 × 2 — 4.5A.
In this embodiment, after the charging state is switched from the third charging phase to the first charging phase again, the charging current is a fourth charging current, and the fourth charging current is smaller than the third charging current; if the charging state is switched from the first charging stage to the second charging stage again, the charging current is a fifth charging current, and the fifth charging current is smaller than the fourth charging current. As in the above example, when the charging state is switched back to the first charging phase CC1, the charging current starts to decrease slowly, the charging current is the fourth charging current, when the current Ibat into the battery is less than 3.5A, the charging state is entered into the second charging phase CC2, the charging current is the fifth charging current. At this point, the battery voltage is raised to 8.98V and then the battery terminal current continues to be monitored.
And step S300, controlling the charging process of the battery according to the charging current.
In this embodiment, when each charging state of the battery is determined, the corresponding charging current in the charging state can be obtained. Then determining the current entering the battery according to the charging current; and controlling the battery to stop charging if the current entering the battery is smaller than a specified current value. For example, as the battery continues to be charged, when the charging current begins to decrease slowly, and when the current Ibat into the battery is less than 3.5A, it indicates that the second charging phase CC2 is entered. At this point, the battery voltage is raised to 8.98V and then the battery terminal current continues to be monitored. If the current entering the battery is less than a specified current value (for example, 1.45A), the charging can be stopped, and the charging capacity can be charged to 100% at this time, so that the battery is fully charged. The battery of the terminal device is now in the EOC state and the detection of the recharge logic is started.
Therefore, in the embodiment, the battery voltage is obtained, and the charging state corresponding to the battery voltage is determined according to the battery voltage; determining a charging current corresponding to the charging state according to the charging state; and determining the electric quantity of the battery according to the charging current, and stopping charging when the electric quantity of the battery reaches a preset value. Because along with continuously charging, the charging current that the different charging stage leads to is inequality, forms cascaded charging mode to determine battery power according to different charging current, and in time stop charging, realize charge control, effectively improved charge efficiency.
Exemplary devices
Based on the above embodiment, the present invention further provides a charging control apparatus, as shown in fig. 3, the method includes: a charging state determination module 10, a charging current determination module 20, and a charging stop control module 30. Specifically, the charging state determining module 10 is configured to obtain a battery voltage, and determine a charging state of the initial battery voltage according to the battery voltage. The charging current determining module 20 is configured to determine, according to the charging state, a charging current corresponding to the charging state. The charging stop control module 30 is configured to control a charging process of the battery according to the charging current.
In one implementation, the state of charge determination module 10 includes:
the voltage interval determining unit is used for acquiring the battery voltage and determining a voltage interval in which the battery voltage is positioned;
and the charging state determining unit is used for determining the charging state corresponding to the voltage interval according to the voltage interval.
In one implementation, the charge state determination unit includes:
a first charging stage determining subunit, configured to determine that the charging state is a first charging stage if the voltage interval is smaller than a first voltage value;
a second charging stage determining subunit, configured to determine that the charging state is a second charging stage if the voltage interval is greater than the first voltage value and less than a second voltage value;
and the third charging stage determining subunit is configured to determine that the charging state is the third charging stage if the voltage interval is greater than the second voltage value.
In specific implementation, after the battery voltage is obtained, a voltage interval in which the battery voltage is located may be determined according to the battery voltage, and then the charging state corresponding to the battery voltage may be determined according to the voltage interval. For example, a plurality of voltage intervals are preset, each voltage interval corresponds to a range, and after the battery voltage is obtained, the corresponding voltage interval can be found according to the battery voltage in the embodiment, so that the corresponding charging state is determined according to the voltage interval. In this embodiment, if the voltage interval is smaller than the first voltage value, it is determined that the charging state is the first charging stage; if the voltage interval is greater than the first voltage value and less than the second voltage value, determining that the charging state is a second charging stage; and if the voltage interval is larger than the second voltage value, determining that the charging state is a third charging stage. For example, referring to fig. 2, if the battery voltage Vbat is less than 8.36V (i.e., the voltage interval is less than 8.36V, and 8.36V is the first voltage value), the state of charge is a first charging phase CC1, in which the charging current ibus at the input terminal is 3A (i.e., the first current value), and the battery is a two-cell series connection, so the current Ibat entering the battery is 6A. As the battery continues to charge, the battery voltage also changes as the charging continues. When the battery voltage Vbat rises above 8.36V and is lower than 8.4V (voltage interval is 8.36-8.4), the state of charge at this time is the second charge stage CC 2. In this charging phase, the charging current ibus is 2.8A (i.e., the second current value is 2.8A), and the current Ibat into the battery is 5.6A. If the battery voltage Vbat rises to 8.4V and is less than 8.9V (voltage interval is 8.4-8.9), the state of charge at this time is the third charge phase CC 3. During this charging phase, the charging current at the input is 2.25A (i.e., the third current value is 2.25A), and the current Ibat into the battery is 2.25 × 2 — 4.5A.
The battery voltage continues to rise as the battery continues to charge. And if the charging state is determined to be switched from the third charging stage to the first charging stage again according to the battery voltage, the charging current is a fourth charging current, and the fourth charging current is smaller than the third charging current. And if the charging state is switched from the first charging stage to the second charging stage again, the charging current is a fifth charging current, and the fifth charging current is smaller than the fourth charging current. For example, when the battery voltage continues to rise to 8.9V, the state of charge switches to the first charging phase CC1, the maximum battery voltage is limited to 8.9V, the charging current starts to slowly decrease, and when the battery-entering current Ibat is less than 3.5A, the second charging phase CC2 is entered. At this point, the battery voltage is raised to 8.98V and then the battery terminal current continues to be monitored.
In one implementation, the charging current determination module 20 includes:
the first current determining unit is used for determining the charging current to be a first current value if the charging state is a first charging stage;
a second current determining unit, configured to determine that the charging current is a second current value if the charging state is a second charging stage;
a third current determining unit, configured to determine that the charging current is a second current value if the charging state is a second charging stage; wherein the first current value > second current value > third current value.
In one implementation, the charging current determination module 20 further includes:
a fourth current determination subunit, configured to determine that the charging current is a fourth charging current if the charging state is switched from the third charging phase to the first charging phase again, where the fourth charging current is smaller than the third charging current;
a fifth current determining subunit, configured to determine that the charging current is a fifth charging current if the charging state is switched from the first charging stage to the second charging stage again, where the fifth charging current is smaller than the fourth charging current.
In specific implementation, along with continuous charging, the charging voltage can also be continuously changed, and if the charging state is determined to be a first charging stage according to the charging voltage, the charging current is determined to be a first current value; if the charging state is a second charging stage, determining that the charging current is a second current value; if the charging state is a second charging stage, determining that the charging current is a second current value; wherein the first current value > second current value > third current value. As in the example above, when the state of charge is determined to be the first charge phase CC1, in which the charging current ibus at the input terminal is 3A (i.e., the first current value), the current Ibat into the battery is 6A because the battery is a two-cell series. As the battery continues to charge, the battery voltage also changes as the charging continues. When the state of charge is the second charge phase CC 2. In this charging phase, the charging current ibus is 2.8A (i.e., the second current value is 2.8A), and the current Ibat into the battery is 5.6A. When it is determined that the state of charge is the third charge phase CC 3. During this charging phase, the charging current at the input is 2.25A (i.e., the third current value is 2.25A), and the current Ibat into the battery is 2.25 × 2 — 4.5A.
In this embodiment, after the charging state is switched from the third charging phase to the first charging phase again, the charging current is a fourth charging current, and the fourth charging current is smaller than the third charging current; if the charging state is switched from the first charging stage to the second charging stage again, the charging current is a fifth charging current, and the fifth charging current is smaller than the fourth charging current. As in the above example, when the charging state is switched back to the first charging phase CC1, the charging current starts to decrease slowly, the charging current is the fourth charging current, when the current Ibat into the battery is less than 3.5A, the charging state is entered into the second charging phase CC2, the charging current is the fifth charging current. At this point, the battery voltage is raised to 8.98V and then the battery terminal current continues to be monitored.
In one implementation, the charge stop control module 30 includes:
the current determining unit is used for determining the current entering the battery according to the charging current;
and the electric quantity determining unit is used for determining the electric quantity of the battery to be 100% if the current entering the battery is smaller than a specified current value.
In specific implementation, when the charging state of the battery is determined, the corresponding charging current in the charging state can be obtained. Then determining the current entering the battery according to the charging current; and according to the current entering the battery, if the current entering the battery is smaller than a specified current value, determining that the electric quantity of the battery is 100%, and controlling the battery to stop charging. For example, as the battery continues to be charged, when the charging current begins to decrease slowly, and when the current Ibat into the battery is less than 3.5A, it indicates that the second charging phase CC2 is entered. At this point, the battery voltage is raised to 8.98V and then the battery terminal current continues to be monitored. If the current entering the battery is less than a specified current value (for example, 1.45A), the charging can be stopped, and the charging capacity can be charged to 100% at this time, so that the battery is fully charged. The battery of the terminal device is now in the EOC state and the detection of the recharge logic is started.
Based on the above embodiments, the present invention further provides a terminal device, and a schematic block diagram thereof may be as shown in fig. 4. The terminal equipment comprises a processor, a memory, a network interface, a display screen and a temperature sensor which are connected through a system bus. Wherein the processor of the terminal device is configured to provide computing and control capabilities. The memory of the terminal equipment comprises 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 an operating system and computer programs in the non-volatile storage medium. The network interface of the terminal device is used for connecting and communicating with an external terminal through a network. The computer program is executed by a processor to implement a charging control method. The display screen of the terminal equipment can be a liquid crystal display screen or an electronic ink display screen, and the temperature sensor of the terminal equipment is arranged in the terminal equipment in advance and used for detecting the operating temperature of the internal equipment.
It will be understood by those skilled in the art that the block diagram of fig. 4 is only a block diagram of a part of the structure related to the solution of the present invention, and does not constitute a limitation to the terminal device to which the solution of the present invention is applied, and a specific terminal device may include more or less components than those shown in the figure, or may combine some components, or have different arrangements of components.
In one embodiment, a terminal device is provided, where the terminal device includes a memory, a processor, and a charging control program stored in the memory and executable on the processor, and when the processor executes the charging control program, the following operation instructions are implemented:
acquiring battery voltage, and determining a charging state corresponding to the battery voltage according to the battery voltage;
determining a charging current corresponding to the charging state according to the charging state;
and controlling the charging process of the battery according to the charging current.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
In summary, the present invention discloses a charging control method, an apparatus, a terminal device and a storage medium, wherein the method comprises: acquiring battery voltage, and determining a charging state corresponding to the battery voltage according to the battery voltage; determining a charging current corresponding to the charging state according to the charging state; and controlling the charging process of the battery according to the charging current. The invention determines the charging state according to the voltage of the battery to judge which charging stage the battery is in, thereby determining the charging current, stopping charging in time and realizing charging control.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A charge control method, characterized in that the method comprises:
acquiring battery voltage, and determining a charging state corresponding to the battery voltage according to the battery voltage;
determining a charging current corresponding to the charging state according to the charging state;
and controlling the charging process of the battery according to the charging current.
2. The charge control method according to claim 1, wherein the acquiring a battery voltage, and determining a state of charge corresponding to the battery voltage from the battery voltage, includes:
acquiring the battery voltage, and determining a voltage interval where the battery voltage is located;
and determining the charging state corresponding to the voltage interval according to the voltage interval.
3. The charge control method according to claim 2, wherein the determining the state of charge corresponding to the voltage interval according to the voltage interval includes:
if the voltage interval is smaller than a first voltage value, determining that the charging state is a first charging stage;
if the voltage interval is greater than the first voltage value and less than the second voltage value, determining that the charging state is a second charging stage;
and if the voltage interval is larger than the second voltage value, determining that the charging state is a third charging stage.
4. The charge control method of claim 3, wherein said determining a charge current corresponding to the state of charge from the state of charge comprises:
if the charging state is a first charging stage, determining that the charging current is a first current value;
if the charging state is a second charging stage, determining that the charging current is a second current value;
if the charging state is a second charging stage, determining that the charging current is a second current value; wherein the first current value > second current value > third current value.
5. The charge control method according to claim 4, wherein the determining a charge current corresponding to the state of charge according to the state of charge further comprises:
if the charging state is switched from the third charging stage to the first charging stage again, the charging current is a fourth charging current, and the fourth charging current is smaller than the third charging current;
if the charging state is switched from the first charging stage to the second charging stage again, the charging current is a fifth charging current, and the fifth charging current is smaller than the fourth charging current.
6. The charge control method according to claim 5, wherein said controlling the charging of the battery in accordance with the charging current comprises:
determining the current entering the battery according to the charging current;
and if the current entering the battery is smaller than the specified current value, determining that the battery capacity is 100%.
7. The charge control method of claim 6, wherein said determining a battery charge based on said current into the battery comprises:
and if the current entering the battery is smaller than the specified current value, controlling the battery to stop charging.
8. A charge control device, characterized in that the device comprises:
the charging state determining module is used for acquiring battery voltage and determining a charging state corresponding to the battery voltage according to the battery voltage;
the charging current determining module is used for determining the charging current corresponding to the charging state according to the charging state;
and the charging stop control module is used for controlling the charging process of the battery according to the charging current.
9. A terminal device, characterized in that the terminal device comprises a memory, a processor and a charging control program stored in the memory and operable on the processor, and the processor implements the steps of the charging control method according to any one of claims 1 to 7 when executing the charging control program.
10. A computer-readable storage medium, having a charging control program 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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