WO2018129976A1 - Charging control method, apparatus and system, storage medium, and terminal - Google Patents

Abstract

A charging control method, apparatus and system, a storage medium, and a terminal. The method comprises: obtaining a constant voltage value required when a battery is in a charging phase at a constant voltage (101); obtaining a corresponding fixed voltage value according to the constant voltage value (102); loading a corresponding charging voltage to a module to be charged according to the fixed voltage value, the module to be charged comprising a battery and an adjustable resistor connected in series (103); and adjusting the resistance value of the adjustable resistor during the process of charging the battery, such that the current charging parameter value of the battery satisfies the parameter value requirement in the charging phase (104).

Description

Charging control method, device, system, storage medium and terminal

The present application claims priority to Chinese Patent Application No. JP-A No. No. No. No. No. No. No. No. No. No. No. No. No. No. In the application.

Technical field

The present application relates to the field of terminal charging technologies, and in particular, to a charging control method, apparatus, system, storage medium, and terminal.

Background technique

At present, such terminals as mobile phones and tablet computers have become an indispensable part of people's lives and work. The battery charging of the terminal is getting more and more attention. Among them, the speed of charging the terminal is also called an important indicator to measure the quality of the terminal.

At present, the terminal is generally charged by an adapter (or a charger) or the like; when the terminal is charged, it is connected to the adapter through a charging line. When the terminal is charging, the terminal needs to constantly adjust the input voltage to adapt to the charging voltage or charging current demand of each charging phase, resulting in a relatively slow charging speed of the terminal.

Summary of the invention

The embodiment of the present application provides a charging control method, device, system, storage medium, and terminal, which can improve the charging speed of the terminal.

In a first aspect, an embodiment of the present application provides a charging control method, including:

Obtaining a constant voltage value required when the battery is in a constant voltage charging phase;

Obtaining a corresponding fixed voltage value according to the constant voltage value;

And charging a module to be charged according to the fixed voltage value, wherein the module to be charged comprises a battery and an adjustable resistor connected in series;

During the charging of the battery, the resistance of the adjustable resistor is adjusted.

In a second aspect, an embodiment of the present application provides a charging control apparatus, including:

a first voltage value acquisition module, configured to acquire a constant voltage value required when the battery is in a constant voltage charging phase;

a second voltage value obtaining module, configured to acquire a corresponding fixed voltage value according to the constant voltage value;

a charging module, configured to load a to-be-charged module with a corresponding charging voltage according to the fixed voltage value, the to-be-charged module comprising a battery and an adjustable resistor connected in series;

The resistance adjustment module is configured to adjust the resistance of the adjustable resistor during charging of the battery.

In a third aspect, the embodiment of the present application further provides a charging control system, including: a charging control device and a module to be charged, the battery to be charged includes a battery and an adjustable resistor connected in series; the charging control device is the application A charging control device provided by any of the embodiments.

In a fourth aspect, the embodiment of the present application provides a storage medium. The storage medium stores a plurality of instructions, and the instructions are adapted to be loaded by a processor to perform a charging control method provided by any one of the embodiments of the present application.

In a fifth aspect, an embodiment of the present application provides a terminal, including: a memory that can execute a program; a processor coupled to the memory; the processor calls the executable program stored in the memory, The charging control method provided by any of the embodiments of the present application is performed.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application. Other drawings can also be obtained from those skilled in the art based on these drawings without paying any creative effort.

1 is a schematic flow chart of a charging control method provided by an embodiment of the present application.

FIG. 2 is a schematic diagram of a charging phase provided by an embodiment of the present application.

FIG. 3 is a schematic structural diagram of a charging control system according to an embodiment of the present application.

FIG. 4 is a schematic diagram showing changes in resistance of an adjustable resistor during charging according to an embodiment of the present application.

FIG. 5 is a schematic flow chart of another charging control method provided by an embodiment of the present application.

FIG. 6 is a schematic diagram of a terminal charging scenario provided by an embodiment of the present application.

FIG. 7 is a schematic structural diagram of a charging control apparatus according to an embodiment of the present application.

FIG. 8 is a schematic structural diagram of another charging control apparatus according to an embodiment of the present application.

FIG. 9 is a schematic structural diagram of a terminal according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present application without creative efforts are within the scope of the present application.

The terms "first", "second", "third", and "fourth" and the like in the present application are used to distinguish different objects, and are not intended to describe a specific order. Furthermore, the terms "comprises" and "comprising" and "comprising" are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units not listed, or alternatively Other steps or units inherent to these processes, methods, products or equipment.

References to "an embodiment" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the present application. The appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will understand and implicitly understand that the embodiments described herein can be combined with other embodiments.

The embodiment of the present application provides a charging control method, including:

Obtaining a constant voltage value required when the battery is in a constant voltage charging phase;

Obtaining a corresponding fixed voltage value according to the constant voltage value;

And charging a module to be charged according to the fixed voltage value, wherein the module to be charged comprises a battery and an adjustable resistor connected in series;

During charging of the battery, the resistance of the adjustable resistor is adjusted such that the current charging parameter value of the battery meets the parameter value requirement of the charging phase.

In an embodiment, the resistance of the adjustable resistor is adjusted such that the current charging parameter value of the battery meets the parameter value requirement of the charging phase, including:

Determining a charging phase in which the battery is currently located;

Obtaining a current resistance value of the battery and a preset charging parameter value corresponding to a charging phase currently in the battery;

And adjusting the resistance of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value, so that the current charging parameter value is equal to the preset charging parameter value.

In an embodiment, the preset charging parameter value includes a preset charging current value;

Adjusting the resistance value of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value, so that the current charging parameter value is equal to the preset charging parameter value, including:

Obtaining a first resistance value according to the fixed voltage value and the preset charging current value;

Obtaining a second resistance value required by the adjustable resistor according to the first resistance value and a current resistance value of the battery;

Adjusting the resistance of the adjustable resistor to the second resistance value such that the current charging current value is equal to a preset charging current value.

In an embodiment, the preset charging parameter value includes a preset charging voltage value;

Adjusting the resistance value of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value, so that the current charging parameter value is equal to the preset charging parameter value, including:

Obtaining a target resistance value required by the adjustable resistor according to the fixed voltage value, the preset charging voltage value, and a current resistance value of the battery;

Adjusting the resistance of the adjustable resistor to the target resistance value such that the current charging voltage value is equal to the preset charging voltage value.

In an embodiment, the determining a charging phase in which the battery is currently located includes:

Obtaining a current accumulated charging duration of the battery;

The charging phase at which the battery is currently located is determined according to the accumulated charging duration.

In an embodiment, obtaining a corresponding fixed voltage value according to the constant voltage value comprises:

Obtaining a maximum resistance or a minimum resistance of the adjustable resistor in the module to be charged;

A fixed voltage value is calculated based on the maximum resistance or minimum resistance of the adjustable resistor and the constant voltage value.

In an embodiment, according to the current resistance value of the battery and the preset charging parameter value, the The resistance of the adjustment resistor is adjusted such that the current charging parameter value is equal to the preset charging parameter value, including:

Determining a target resistance of the adjustable resistor according to a current resistance value of the battery and the preset charging parameter value;

Adjusting the resistance of the adjustable resistor to the target resistance, and maintaining the resistance change rate of the variable resistor in the positive direction is equal to the resistance change rate of the battery internal resistance in the negative direction, so that the current charging parameter value is equal to the preset charging Parameter value. The execution body of the charging control method provided by the embodiment of the present application may be the charging control device provided by the embodiment of the present application or the terminal integrated with the charging control device, and the charging control device may be implemented by using hardware or software; The terminal described in the embodiment of the present application may be a smart phone (such as an Android mobile phone, a Windows Phone mobile phone, etc.), a tablet computer, a palmtop computer, a notebook computer, or a mobile Internet device (MID, Mobile Internet Devices), and the above terminal is only an example, and Non-exhaustive, including but not limited to the above terminals.

Embodiments of the present application provide a charging control method, apparatus, system, and terminal. The details will be described separately below.

In an embodiment, a charging control method is provided. As shown in FIG. 1, the flow may be as follows:

101. Obtain a constant voltage value required when the battery is in a constant voltage charging phase.

Referring to FIG. 2, the stage of charging the battery in the embodiment of the present application may include: a pre-charging stage, a constant current charging stage, a constant voltage charging stage, and the like.

Among them, the pre-charging phase, also known as the trickle charging phase, is used to pre-charge (recovery charging) the fully discharged battery. Generally, trickle charging is used when the battery voltage is lower than a certain voltage value, such as about 3V. The trickle charging current is one tenth of the constant current charging current, that is, 0.1c (for example, a constant charging current is 1A, then trickle charging The current is 100mA).

In the constant current charging phase, that is, the constant current charging phase, when the battery voltage rises above the trickle charge threshold, the charging current is increased for constant current charging. The current for constant current charging is between 0.2C and 1.0C. The battery voltage gradually increases with the constant current charging process, and the voltage set by a single battery is 3.0-4.2V.

Constant voltage charging phase, ie constant voltage charging - When the battery voltage rises to 4.2V, the constant current charging ends and the constant voltage charging phase begins. The current depends on the saturation of the cell, as the charging process continues The charging current is gradually reduced from the maximum value, and when it is reduced to 0.01 C, the charging is considered to be terminated. (C is a representation of the battery's nominal capacity versus current, such as the battery is 1000mAh capacity, 1C is the charging current 1000mA.).

In the embodiment of the present application, when charging, a constant voltage value required for the battery to be in a constant voltage charging phase, such as 4.2V, can be obtained. Among them, the constant voltage value required for the constant voltage charging phase can be set according to actual needs, such as 4.3V.

102. Acquire a corresponding fixed voltage value according to the constant voltage.

Wherein, the fixed voltage value is greater than a constant voltage value, for example, the constant voltage value is 4.2V, and the fixed voltage value may be 5v or the like.

The fixed voltage value is a charging voltage to be loaded by the module to be charged. Therefore, the fixed voltage value can be obtained based on the resistance of the adjustable resistor in the module to be charged, and the resistance value can be the maximum or minimum resistance of the adjustable resistor. That is, the step "acquiring a corresponding fixed voltage value according to the constant voltage" may include:

Obtaining the maximum resistance or the minimum resistance of the adjustable resistor in the module to be charged;

The fixed voltage value is calculated based on the constant voltage value and (the maximum resistance or the minimum resistance of the adjustable resistor).

For example, in order to save power, the fixed voltage value is not easily set too large. Therefore, the minimum internal resistance R of the battery can be obtained, and the maximum charging current Imax of the battery is calculated by the constant voltage value V _constant and the minimum internal resistance R, which is Imax= V _constant / R, then, calculate the maximum voltage Vmax of the adjustable resistor during charging, the Vmax = V _constant * Rmax, the Rmax is the maximum resistance value of the adjustable resistor, and then, the fixed voltage value V is _fixed = V _constant + Vmax.

103. The module to be charged is loaded with a corresponding charging voltage according to the fixed voltage value, and the module to be charged includes a battery and an adjustable resistor connected in series.

Referring to FIG. 3, the module to be charged in the embodiment of the present application may include a battery and an adjustable resistor, and the battery and the adjustable resistor are connected in series with each other. In this embodiment, the charging control device can record a corresponding voltage V at both ends of the module to be charged according to the fixed voltage value to charge the battery.

The adjustable resistor may be a single adjustable resistor, or an adjustable resistor unit composed of a plurality of adjustable resistors, and specifically, may be set according to actual needs.

104. During charging of the battery, adjust the resistance of the adjustable resistor so that the current charging parameter value of the battery meets the parameter value requirement of the charging phase.

For example, in the process of charging the battery, the charging control device sends a resistance adjustment command to the adjustable resistor, so that the adjustable resistor adjusts the current resistance value to the corresponding target resistance according to the command.

The current charging parameter value of the battery may include a charging voltage value, a charging current value, and the like.

In order to ensure the safety of charging, battery charging needs to go through multiple charging stages, such as pre-charging, constant-current charging stage, etc., and charging requirements such as voltage and current are different in each charging stage, for example, charging current in pre-charging stage. The charging current for the 100mA, constant current charging phase is 1000mA, and the charging voltage for the constant voltage charging phase is 4.2V. Therefore, the resistance of the adjustable resistor needs to be adjusted differently during different charging phases, so that the current charging parameters are achieved. The corresponding charging parameter requirements. Specifically, in an embodiment, the step of “adjusting the resistance of the adjustable resistor” may include:

Determining the current charging phase of the battery;

Obtaining a current resistance value of the battery and a preset charging parameter value corresponding to a charging phase currently in the battery;

The resistance of the adjustable resistor is adjusted according to the current resistance value of the battery and the preset charging parameter value, so that the current charging parameter value is equal to the preset charging parameter value.

In an embodiment, the preset charging parameter value may include a preset charging current, a preset charging voltage, and the like. For example, in the pre-charging stage, the preset charging parameter value is a first preset charging current value, and in the constant current charging phase, the preset charging parameter value may be a second preset charging current value (where the second preset is The charging current is greater than the first preset charging current value), the preset charging parameter value may be a preset charging voltage value during the constant voltage charging phase, and the like.

In an embodiment, the voltage of the battery may be monitored in real time during the charging process, and the charging phase currently in which the battery is currently located may be determined according to the voltage, for example, when the voltage of the battery is greater than the pre-charging voltage threshold, it is determined to be in a constant current charging phase. When the voltage of the voltage is greater than the constant voltage charging voltage threshold, it is determined that the voltage is in a constant voltage charging phase. In this embodiment, the charging phase at which the battery is currently located can also be determined according to the duration of charging. Specifically, the step of "determining the charging phase in which the battery is currently located" may include:

Obtain the current accumulated charging time of the battery;

The charging phase at which the battery is currently located is determined according to the accumulated charging duration.

For example, when the accumulated charging duration is greater than the first duration T1, it is determined to be in the pre-charging phase. When the accumulated charging duration is greater than the second duration T2, it is determined to be in the constant current charging phase, and when the accumulated charging time is greater than the third duration T3, it is determined to be in Constant voltage charging phase...... This T1 < T2 < T3.

In an embodiment, it is considered that the internal resistance of the battery is continuously reduced as the duration of charging, and therefore, the resistance change rate of the variable resistor may be equal to the resistance change rate of the internal resistance of the battery. That is, the step “adjusting the resistance value of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value so that the current charging parameter value is equal to the preset charging parameter value” may include:

Determining a target resistance of the adjustable resistor according to a current resistance value of the battery and the preset charging parameter value;

Adjusting the resistance of the adjustable resistor to the target resistance, and maintaining the resistance change rate of the variable resistor in the positive direction is equal to the resistance change rate of the battery internal resistance in the negative direction, so that the current charging parameter value is equal to the preset charging Parameter value.

Wherein, the resistance change rate is a change amount of the resistance value per unit time. The positive direction is a direction in which the resistance value becomes large, and the negative direction is a direction in which the resistance value becomes small.

The following describes the resistance adjustment process at different stages:

(1) When the preset charging parameter value includes the preset charging current value.

The step “adjusting the resistance value of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value so that the current charging parameter value is equal to the preset charging parameter value” may include:

Obtaining a first resistance value according to the fixed voltage value and the preset charging current value;

Obtaining a second resistance value required for the adjustable resistor according to the first resistance value and a current resistance value of the battery;

Adjusting the resistance of the adjustable resistor to the second resistance value such that the current charging current value is equal to the preset charging current value.

For example, when the battery is in the pre-charging stage, the current resistance value R0 of the battery and the first preset charging current value I′ of the pre-charging phase of the battery are obtained, and then, according to the current resistance value R0 of the battery and the first preset. The charging current value I' is adjusted to adjust the resistance of the adjustable resistor so that the current charging current value I is equal to the first preset charging current value I'. Specifically, according to a fixed voltage value V and preset charging The current value I' obtains the first resistance value R1, that is, the total resistance value of the module to be charged, the R1=V/I', and then, according to the first resistance value R1 and the current resistance value R of the battery, the required resistance is calculated. The second resistance value R2=R1-R, and then the resistance of the adjustable resistor is adjusted to R2.

Generally, the internal resistance of the battery is continuously reduced with the charging duration. Therefore, in an embodiment, in order to ensure that the preset charging current level is maintained in the corresponding charging phase, it is also required to make the resistance change rate of the variable resistor The rate of change in resistance equal to the internal resistance of the battery. That is, the step of “adjusting the resistance of the adjustable resistor to the second resistance value such that the current charging current value is equal to the preset charging current value” may include:

Adjusting the resistance of the adjustable resistor to the second resistance value, and maintaining the resistance change rate of the variable resistor in the positive direction is equal to the resistance change rate of the battery internal resistance in the negative direction, so that the current charging current value is equal to the pre- Set the charging current value. Wherein, the resistance change rate is a change amount of the resistance value per unit time. The positive direction is a direction in which the resistance value becomes large, and the negative direction is a direction in which the resistance value becomes small.

For example, generally, in the pre-charging phase, that is, in the initial charging phase, the internal resistance of the battery is large, and the preset charging current value at this stage is small. In the pre-charging phase, the internal resistance of the battery will be greatly reduced, so, in order to ensure The charging current is maintained at the preset charging current level required at this stage, and the resistance of the adjustable resistor can be continuously increased. The resistance change rate of the variable resistor can be equal to the resistance change rate of the internal resistance of the battery, which can ensure the pre-charging stage. The current charging current is equal to the first preset charging current value.

Similarly, for example, when the battery is in the constant current charging phase, the current battery resistance value and the second preset charging current value of the constant current charging phase of the battery can be obtained, and then, according to the current resistance value of the battery and the second pre- The charging current value is set, and the resistance of the adjustable resistor is adjusted so that the current charging current value is equal to the second preset charging current value.

In an embodiment, the first resistance value R1 is obtained according to the fixed voltage value V and the preset charging current value I′, that is, the total resistance value of the module to be charged, the R1=V/I′, and then, according to the first resistance The value R1 and the current resistance value R of the battery calculate the second resistance value R2=R1-R required for the adjustable resistor, and then adjust the resistance of the adjustable resistor to R2.

Since the charging current value of the constant current charging phase is greater than the charging current value of the pre-charging phase, in an embodiment, when the battery enters the constant current charging phase from the pre-charging phase, the resistance of the adjustable resistor can be lowered, so that The current charging current is equal to the second pre-requisite required for the constant current charging phase The charging current value is set, and since the internal resistance changes in the negative direction (ie, the resistance value becomes smaller), after the resistance of the adjustable resistor is lowered, it is necessary to control the resistance of the adjustable resistor to change in the positive direction (ie, The direction in which the resistance becomes larger is adjusted, and the rate of change of the resistance of the variable resistor in the positive direction may be equal to the rate of change in resistance in the negative direction of the internal resistance of the battery.

(2) The preset charging parameter value includes a preset charging voltage value.

In an embodiment, the step of “adjusting the resistance of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value so that the current charging parameter value is equal to the preset charging parameter value” may include:

Obtaining a target resistance value required for the adjustable resistor according to the fixed voltage value, the preset charging voltage value, and a current resistance value of the battery;

The resistance of the adjustable resistor is adjusted to the target resistance value such that the current charging voltage value is equal to the preset charging voltage value.

For example, when the battery is in the constant voltage charging phase, since the charging voltage across the battery needs to be kept at the preset charging voltage value in the constant voltage charging segment, it is necessary to adjust the resistance of the variable resistor so that the charging voltage at both ends of the current battery is Equal to the preset charging voltage. Specifically, the current battery resistance value R0 and the preset charging voltage value V1 of the constant voltage charging phase of the battery can be obtained, and then, according to the fixed voltage value V, the current resistance value R0 of the battery, and the preset charging voltage value V1, The resistance of the adjustable resistor is adjusted such that the current charging voltage value is equal to the preset charging voltage value.

For example, the charging current I=V1/R0 can be obtained according to the current resistance value R0 of the battery and the preset charging voltage value V1, and then the target resistance value R2 of the adjustable resistor is calculated by the formula R2=(V-V1)/I. Finally, adjust the resistance of the adjustable resistor to R2.

Generally, the internal resistance of the battery is continuously reduced as the charging time is long. Therefore, in order to ensure that the preset charging voltage level is maintained during the corresponding charging phase, it is also necessary to make the resistance change rate of the variable resistor equal to the resistance change of the internal resistance of the battery. rate. That is, the step of “adjusting the resistance of the adjustable resistor to the target resistance value such that the current charging voltage value is equal to the preset charging voltage value” may include:

Adjusting the resistance of the adjustable resistor to the target resistance value, and maintaining the resistance change rate of the variable resistor in the positive direction is equal to the resistance change rate of the battery internal resistance in the negative direction, so that the current charging current value Equal to the preset charging voltage value.

In the constant voltage charging section, it is necessary to maintain the charging voltage at both ends of the battery as a preset charging voltage value. After the battery enters the battery phase and adjust the resistance of the adjustable resistor to the target resistance value, it is also necessary to maintain the resistance change of the variable resistor in the positive direction. The rate is equal to the rate of change of resistance of the battery internal resistance in the negative direction, such that the charging voltage across the battery is always equal to the preset charging voltage value.

Referring to FIG. 4, it is a schematic diagram of the resistance change of the variable resistor corresponding to the charging phase shown in FIG. 2. In the pre-charging phase, the resistance value rises slowly. When the battery voltage is equal to the pre-charge voltage threshold, the resistance value becomes smaller when entering the constant current charging phase, so that the current charging current is equal to the charging current required for constant current charging, and then In the constant current charging phase, the resistance gradually rises to offset the increase in the internal resistance of the battery.

When the battery voltage is equal to the voltage threshold of the constant voltage phase, when entering the constant voltage charging phase, the resistance gradually rises to offset the increase in the internal resistance of the battery. When the charging current is equal to the termination charging current threshold, the resistance value is increased to lower the charging current, so that the charging current is equal to the preset termination charging current, and the internal resistance of the battery is substantially stable, so the resistance value can remain unchanged during the termination phase. . If the battery voltage is lower than the recharge voltage threshold and then enters the recharge phase, the resistance current can be increased to increase the charging current, so that the charging current is equal to the charging current in the constant current charging phase, since the internal resistance of the battery is substantially stable, therefore, The resistance can remain unchanged during the termination phase. In some other embodiments, it is also possible to increase the resistance during the recharging phase to offset the increase in internal resistance of the battery.

As can be seen from the above, the embodiment of the present application adopts a constant voltage value required to obtain a battery in a constant voltage charging phase, and then obtains a corresponding fixed voltage value according to the constant voltage value, and loads a corresponding module according to the fixed voltage value. The charging voltage, the module to be charged includes a battery and an adjustable resistor connected in series, and during the charging of the battery, the resistance of the adjustable resistor is adjusted so that the current charging parameter value of the battery satisfies the charging phase. The parameter value is required. The solution can charge the terminal battery with a fixed input voltage, and the terminal charging speed can be improved without continuously adjusting the input voltage.

In an embodiment, the charging control method of the present application will be described by taking a charging control device integrated in the terminal as an example. The terminal can be a PC (personal computer), a notebook computer, a smart phone, or the like.

Referring to Figure 5, the adapter charges the battery of the terminal through a charging line. Referring to FIG. 6, a charging control method is as follows:

201. When the adapter is connected to the terminal for charging, the terminal acquires a constant voltage value required when the battery is in a constant voltage charging phase.

202. The terminal acquires, according to the constant voltage, a corresponding fixed voltage value, where the fixed voltage value is greater than a constant voltage value.

For example, the terminal obtains the maximum resistance value of the adjustable resistor in the module to be charged, and calculates a fixed voltage value according to the constant voltage value and the maximum resistance value.

For example, the minimum internal resistance R of the battery can be obtained, and the maximum charging current Imax of the battery is calculated by the constant voltage value V _constant and the minimum internal resistance R, and the Imax=V is _constant /R, and then the adjustable resistance is calculated during the charging process. The maximum voltage Vmax, which is _constant *Rmax, is the maximum resistance value of the adjustable resistor, and then the fixed voltage value V is _fixed = V _constant + Vmax.

203. The terminal loads a to-be-charged module with a corresponding charging voltage according to the fixed voltage value, where the to-be-charged module includes a battery and an adjustable resistor connected in series.

Referring to FIG. 3, the module to be charged is located inside the terminal, and includes a battery and an adjustable resistor, and the battery and the adjustable resistor are connected in series with each other. The adjustable resistor may be a single adjustable resistor, or an adjustable resistor unit composed of a plurality of adjustable resistors, and specifically, may be set according to actual needs.

204. The terminal monitors the current battery voltage of the battery during charging of the battery.

205. The terminal determines, according to the battery voltage, a charging phase currently in which the battery is located.

For example, when the voltage of the battery is greater than the precharge voltage threshold, it is determined to be in the constant current charging phase, and when the voltage of the voltage is greater than the constant voltage charging voltage threshold, it is determined to be in the constant voltage charging phase.

206. The terminal acquires a current resistance value of the battery, and a preset charging parameter value corresponding to a charging phase currently in the battery.

The preset charging parameter value may include a preset charging current, a preset charging voltage, and the like. For example, in the pre-charging stage, the preset charging parameter value is a first preset charging current value, and in the constant current charging phase, the preset charging parameter value may be a second preset charging current value (where the second preset is The charging current is greater than the first preset charging current value), and the preset charging parameter value may be pre-charged during the constant voltage charging phase Set the charging voltage value, and so on.

207. The terminal adjusts the resistance of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value, so that the current charging parameter value is equal to the preset charging parameter value.

In an embodiment, the terminal determines the target resistance of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value, adjusts the resistance of the adjustable resistor to the target resistance, and maintains the variable resistance at The rate of change of resistance in the positive direction is equal to the rate of change of resistance of the battery internal resistance in the negative direction such that the current charging parameter value is equal to the preset charging parameter value.

For example, when the battery is in the constant current charging phase, the current battery resistance value and the second preset charging current value of the constant current charging phase of the battery can be obtained, and then, according to the current resistance value of the battery and the second preset charging. The current value adjusts the resistance of the adjustable resistor such that the current charging current value is equal to the second preset charging current value.

In an embodiment, the first resistance value R1 is obtained according to the fixed voltage value V and the preset charging current value I′, that is, the total resistance value of the module to be charged, the R1=V/I′, and then, according to the first resistance The value R1 and the current resistance value R of the battery calculate the second resistance value R2=R1-R required for the adjustable resistor, and then adjust the resistance of the adjustable resistor to R2.

Since the charging current value of the constant current charging phase is greater than the charging current value of the pre-charging phase, in an embodiment, when the battery enters the constant current charging phase from the pre-charging phase, the resistance of the adjustable resistor can be lowered, so that The current charging current is equal to the second preset charging current value required by the constant current charging phase, and since the internal resistance changes in the negative direction (ie, the resistance becomes smaller), after lowering the resistance of the adjustable resistor, It is necessary to control the resistance of the adjustable resistor to change in the positive direction (ie, the direction in which the resistance becomes larger), and the rate of change of the resistance of the variable resistor in the positive direction may be equal to the rate of change of the resistance in the negative direction of the internal resistance of the battery.

As can be seen from the above, the embodiment of the present application adopts a constant voltage value required to obtain a battery in a constant voltage charging phase, and then obtains a corresponding fixed voltage value according to the constant voltage value, and loads a corresponding module according to the fixed voltage value. The charging voltage, the module to be charged includes a battery and an adjustable resistor connected in series, and during the charging of the battery, the resistance of the adjustable resistor is adjusted so that the current charging parameter value of the battery satisfies the charging phase. The parameter value is required. The program can be fixed at a loss The input voltage charges the terminal battery, and it is not necessary to constantly adjust the input voltage to increase the charging speed of the terminal.

The embodiment of the present application further provides a charging control apparatus, including:

a first voltage value acquisition module, configured to acquire a constant voltage value required when the battery is in a constant voltage charging phase;

a second voltage value obtaining module, configured to acquire a corresponding fixed voltage value according to the constant voltage value;

a charging module, configured to load a to-be-charged module with a corresponding charging voltage according to the fixed voltage value, the to-be-charged module comprising a battery and an adjustable resistor connected in series;

And a resistance adjustment module, configured to adjust a resistance of the adjustable resistor during charging of the battery, so that a current charging parameter value of the battery meets a parameter value requirement of the charging phase.

In an embodiment, the resistance adjustment module includes:

Determining a sub-module for determining a charging phase in which the battery is currently located;

a parameter value obtaining submodule, configured to acquire a current resistance value of the battery, and a preset charging parameter value corresponding to a charging phase currently in the battery;

The resistance adjustment submodule is configured to adjust the resistance of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value, so that the current charging parameter value is equal to the preset charging parameter value.

In an embodiment, the preset charging parameter value includes a preset charging current value; and the resistance adjusting sub-module is specifically configured to:

Obtaining a first resistance value according to the fixed voltage value and the preset charging current value;

Obtaining a second resistance value required by the adjustable resistor according to the first resistance value and a current resistance value of the battery;

Adjusting the resistance of the adjustable resistor to the second resistance value such that the current charging current value is equal to a preset charging current value.

In an embodiment, the preset charging parameter value includes a preset charging voltage value; and the resistance adjusting sub-module is specifically configured to:

And determining a resistance value of the adjustable resistor according to a current resistance value of the battery and the preset charging parameter value Adjusting the line so that the current charging parameter value is equal to the preset charging parameter value, including:

Obtaining a target resistance value required by the adjustable resistor according to the fixed voltage value, the preset charging voltage value, and a current resistance value of the battery;

Adjusting the resistance of the adjustable resistor to the target resistance value such that the current charging voltage value is equal to the preset charging voltage value.

In an embodiment, the determining submodule is configured to:

Obtaining a current accumulated charging duration of the battery;

The charging phase at which the battery is currently located is determined according to the accumulated charging duration.

In an embodiment, the first voltage value acquisition module is configured to:

Obtaining a maximum resistance or a minimum resistance of the adjustable resistor in the module to be charged;

A fixed voltage value is calculated based on the maximum resistance or minimum resistance of the adjustable resistor and the constant voltage value.

In an embodiment, the resistance adjustment submodule is specifically configured to:

Determining a target resistance of the adjustable resistor according to a current resistance value of the battery and the preset charging parameter value;

Adjusting the resistance of the adjustable resistor to the target resistance, and maintaining the resistance change rate of the variable resistor in the positive direction is equal to the resistance change rate of the battery internal resistance in the negative direction, so that the current charging parameter value is equal to the preset charging Parameter value.

In an embodiment, a charge control device is also provided. The charging control device may be specifically integrated in the terminal, and the terminal may be a device such as a PC, a notebook computer, or a smart phone.

As shown in FIG. 7, the charging control device 300 can include a first voltage value obtaining module 301, a second voltage value obtaining module 302, a charging module 303, and a resistance adjusting module 304, as follows:

The first voltage value obtaining module 301 is configured to acquire a constant voltage value required when the battery is in a constant voltage charging phase;

The second voltage value obtaining module 302 is configured to obtain a corresponding fixed voltage value according to the constant voltage value;

The charging module 303 is configured to load the to-be-charged module with a corresponding charging power according to the fixed voltage value. Pressing, the module to be charged includes a battery and an adjustable resistor connected in series;

The resistance adjustment module 304 is configured to adjust the resistance of the adjustable resistor during charging of the battery.

In an embodiment, referring to FIG. 8, the resistance adjustment module 304 may include:

Determining a sub-module 3041 for determining a charging phase in which the battery is currently located;

The parameter value obtaining sub-module 3042 is configured to obtain a current resistance value of the battery and a preset charging parameter value corresponding to a charging phase currently in the battery;

The resistance adjustment sub-module 3043 is configured to adjust the resistance of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value, so that the current charging parameter value is equal to the preset charging parameter value.

In an embodiment, the preset charging parameter value may include a preset charging current value; at this time, the resistance adjusting sub-module 3043 may be specifically configured to:

Obtaining a first resistance value according to the fixed voltage value and the preset charging current value;

Obtaining a second resistance value required for the adjustable resistor according to the first resistance value and a current resistance value of the battery;

Adjusting the resistance of the adjustable resistor to the second resistance value such that the current charging current value is equal to the preset charging current value.

In an embodiment, the preset charging parameter value may include a preset charging voltage value. In this case, the resistance adjusting sub-module 3043 may be specifically configured to:

Adjusting the resistance value of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value, so that the current charging parameter value is equal to the preset charging parameter value, including:

Obtaining a target resistance value required for the adjustable resistor according to the fixed voltage value, the preset charging voltage value, and a current resistance value of the battery;

The resistance of the adjustable resistor is adjusted to the target resistance value such that the current charging voltage value is equal to the preset charging voltage value.

In an embodiment, the determining submodule 3041 may be specifically configured to:

Obtain the current accumulated charging time of the battery;

The charging phase at which the battery is currently located is determined according to the accumulated charging duration.

In an embodiment, the first voltage value obtaining module 301 can be used to:

Obtaining a maximum resistance or a minimum resistance of the adjustable resistor in the module to be charged;

A fixed voltage value is calculated based on the maximum resistance or minimum resistance of the adjustable resistor and the constant voltage value.

In an embodiment, the resistance adjustment sub-module 3043 may be specifically configured to:

Determining a target resistance of the adjustable resistor according to a current resistance value of the battery and the preset charging parameter value;

Adjusting the resistance of the adjustable resistor to the target resistance, and maintaining the resistance change rate of the variable resistor in the positive direction is equal to the resistance change rate of the battery internal resistance in the negative direction, so that the current charging parameter value is equal to the preset charging Parameter value.

For the specific implementation, the foregoing modules may be implemented as a separate entity, or may be implemented in any combination, and may be implemented as the same or a plurality of entities. For the specific implementation of the foregoing modules, refer to the foregoing method embodiments, and details are not described herein again.

As can be seen from the above, the embodiment of the present application uses the first voltage value acquisition module 301 to obtain a constant voltage value required when the battery is in a constant voltage charging phase, and then the second voltage value acquisition module 302 obtains a corresponding fixed value according to the constant voltage value. The voltage value is loaded by the charging module 303 according to the fixed voltage value to the module to be charged, and the module to be charged includes a battery and an adjustable resistor connected in series, and the resistor adjusting module 304 is in the process of charging the battery. The resistance of the adjustable resistor is adjusted such that the current charging parameter value of the battery satisfies the parameter value requirement of the charging phase. The solution can charge the terminal battery with a fixed input voltage, and the terminal charging speed can be improved without continuously adjusting the input voltage.

In an embodiment, the embodiment of the present application further provides a charging control system, including a charging control device and a module to be charged, the battery to be charged includes a battery and an adjustable resistor connected in series; the charging control device is implemented in the present application. Any of the charging control devices provided. The specific structure can refer to FIG. 3.

In an embodiment, a terminal is further provided, the terminal comprising:

Storing a memory that can execute a program;

a processor coupled to the memory;

The processor calls the executable program stored in the memory to perform the charging control method provided by any of the embodiments of the present application.

For example, referring to FIG. 9, the terminal 400 may include a radio frequency (RF) circuit 401, a memory 402 including one or more computer readable storage media, an input unit 403, a display unit 404, a sensor 405, and an audio circuit. 406. A Wireless Fidelity (WiFi) module 407, a processor 408 including one or more processing cores, and a power supply 409 and the like. It will be understood by those skilled in the art that the terminal structure shown in FIG. 9 does not constitute a limitation to the terminal, and may include more or less components than those illustrated, or combine some components, or different component arrangements.

The radio frequency circuit 401 can be used for transmitting and receiving information, or receiving and transmitting signals during a call. Specifically, after receiving the downlink information of the base station, the downlink information is processed by one or more processors 408; in addition, the data related to the uplink is sent to the base station. . Generally, the radio frequency circuit 401 includes, but is not limited to, an antenna, at least one amplifier, a tuner, one or more oscillators, a Subscriber Identity Module (SIM), a transceiver, a coupler, and a low noise amplifier (LNA, Low Noise Amplifier), duplexer, etc. In addition, the radio frequency circuit 401 can also communicate with the network and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), and Code Division Multiple Access (CDMA). Code Division Multiple Access), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), e-mail, Short Messaging Service (SMS), and the like.

Memory 402 can be used to store software programs as well as modules. The processor 408 executes various functional applications and data processing by running software programs and modules stored in the memory 402. The memory 402 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to Data created by the use of the terminal (such as audio data, phone book, etc.). Moreover, the memory 402 can include a high speed random access memory, and can also include a non-volatile memory. For example, at least one disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, memory 402 may also include a memory controller to provide access to memory 402 by processor 408 and input unit 403.

Input unit 403 can be used to receive input numeric or character information, as well as to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function controls. In particular, in one particular embodiment, input unit 403 can include a touch-sensitive surface as well as other input devices. Touch-sensitive surfaces, also known as touch screens or trackpads, collect touch operations on or near the user (such as the user using a finger, stylus, etc., any suitable object or accessory on a touch-sensitive surface or touch-sensitive Operation near the surface), and drive the corresponding connecting device according to a preset program. Alternatively, the touch sensitive surface may include two parts of a touch detection device and a touch controller. Wherein, the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information. The processor 408 is provided and can receive commands from the processor 408 and execute them. In addition, touch-sensitive surfaces can be implemented in a variety of types, including resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch-sensitive surface, the input unit 403 can also include other input devices. Specifically, other input devices may include, but are not limited to, one or more of a physical keyboard, function keys (such as a volume control button, a switch button, etc.), a trackball, a mouse, a joystick, a fingerprint recognition module, and the like.

Display unit 404 can be used to display information entered by the user or information provided to the user, as well as various graphical user interfaces of the terminal, which can be composed of graphics, text, icons, video, and any combination thereof. The display unit 404 can include a display panel. Alternatively, the display panel can be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch-sensitive surface can cover the display panel, and when the touch-sensitive surface detects a touch operation thereon or nearby, it is transmitted to the processor 408 to determine the type of the touch event, and then the processor 408 displays the type according to the type of the touch event. A corresponding visual output is provided on the panel. Although in FIG. 9, the touch-sensitive surface and display panel are implemented as two separate components to implement input and input functions, in some embodiments, the touch-sensitive surface can be integrated with the display panel to implement input and output functions.

The terminal may also include at least one type of sensor 405, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel according to the brightness of the ambient light, and the proximity sensor may close the display panel and/or the backlight when the terminal moves to the ear. . As a kind of motion sensor, the gravity acceleration sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity. It can be used to identify the gesture of the mobile phone (such as horizontal and vertical screen switching, related Game, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for the terminal can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, no longer Narration.

The audio circuit 406 can provide an audio interface between the user and the terminal through a speaker and a microphone. The audio circuit 406 can convert the received audio data into an electrical signal, which is transmitted to the speaker, and converted into a sound signal output by the speaker. On the other hand, the microphone converts the collected sound signal into an electrical signal, which is received by the audio circuit 406 and converted into The audio data is then processed by the audio data output processor 408, transmitted via the RF circuit 401 to, for example, another terminal, or the audio data is output to the memory 402 for further processing. The audio circuit 406 may also include an earbud jack to provide communication between the peripheral earphone and the terminal.

Wireless Fidelity (WiFi) is a short-range wireless transmission technology. The terminal can help users to send and receive e-mail, browse web pages and access streaming media through the wireless fidelity module 407, which provides users with wireless broadband Internet access. Although FIG. 9 shows the wireless fidelity module 407, it can be understood that it does not belong to the essential configuration of the terminal, and may be omitted as needed within the scope of not changing the essence of the invention.

Processor 408 is the control center of the terminal, interconnecting various portions of the entire terminal using various interfaces and lines, executing or executing software programs and/or modules stored in memory 402, and invoking data stored in memory 402, The terminal's various functions and processing data, so as to monitor the terminal as a whole. Optionally, the processor 408 may include one or more processing cores; preferably, the processor 408 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like. The modem processor primarily handles wireless communications. It will be appreciated that the above described modem processor may also not be integrated into the processor 408.

The terminal also includes a power source 409 (such as a battery) that supplies power to the various components. Preferably, the power source can be logically coupled to the processor 408 through the power management system to manage functions such as charging, discharging, and power management through the power management system. The power supply 409 may also include any one or more of a DC or AC power source, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.

Although not shown, the terminal may also include a Bluetooth module, a camera, etc., and details are not described herein again.

Specifically, in this embodiment, the processor 408 in the terminal loads the executable file corresponding to the process of one or more applications into the memory 402 according to the following instruction, and is executed by the processor 408 to be stored in the memory. The application in 402 to implement various functions:

Obtaining a constant voltage value required for the battery to be in a constant voltage charging phase, and then obtaining a corresponding fixed voltage value according to the constant voltage value, and applying a corresponding charging voltage to the module to be charged according to the fixed voltage value, the module to be charged includes each other The battery and the adjustable resistor are connected in series, and the resistance value of the adjustable resistor is adjusted during charging of the battery, so that the current charging parameter value of the battery satisfies the parameter value requirement of the charging phase.

In an embodiment, when the resistance of the adjustable resistor is adjusted such that the current charging parameter value of the battery meets the parameter value requirement of the charging phase, the processor 408 is configured to perform the following steps:

Determining the current charging phase of the battery;

Obtaining a current resistance value of the battery and a preset charging parameter value corresponding to a charging phase currently in the battery;

The resistance of the adjustable resistor is adjusted according to the current resistance value of the battery and the preset charging parameter value, so that the current charging parameter value is equal to the preset charging parameter value.

In an embodiment, the preset charging parameter value comprises a preset charging current value or a preset charging voltage value.

In an embodiment, the preset charging parameter value includes a preset charging current value, and the resistance value of the adjustable resistor is adjusted according to a current resistance value of the battery and the preset charging parameter value, so that When the current charging parameter value is equal to the preset charging parameter value, the processor 408 is configured to perform the following steps:

Obtaining a first resistance value according to the fixed voltage value and the preset charging current value;

Obtaining a second resistance value required by the adjustable resistor according to the first resistance value and a current resistance value of the battery;

Adjusting the resistance of the adjustable resistor to the second resistance value such that the current charging current value is equal to a preset charging current value.

In an embodiment, the preset charging parameter value includes a preset charging voltage value;

The processor 408 is configured to adjust the resistance of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value, so that the current charging parameter value is equal to the preset charging parameter value. Perform the following steps:

Obtaining a target resistance value required by the adjustable resistor according to the fixed voltage value, the preset charging voltage value, and a current resistance value of the battery;

Adjusting the resistance of the adjustable resistor to the target resistance value such that the current charging voltage value is equal to the preset charging voltage value.

In an embodiment, the charging phase at which the battery is currently located is determined, and the processor 408 is configured to perform the following steps:

Obtaining a current accumulated charging duration of the battery;

The charging phase at which the battery is currently located is determined according to the accumulated charging duration.

In an embodiment, when the corresponding fixed voltage value is obtained according to the constant voltage value, the processor 408 is configured to perform the following steps:

Obtaining a maximum resistance or a minimum resistance of the adjustable resistor in the module to be charged;

A fixed voltage value is calculated based on the maximum resistance or minimum resistance of the adjustable resistor and the constant voltage value.

In an embodiment, the resistance value of the adjustable resistor is adjusted according to a current resistance value of the battery and the preset charging parameter value, so that when the current charging parameter value is equal to the preset charging parameter value, The processor 408 is configured to perform the following steps:

Determining a target resistance of the adjustable resistor according to a current resistance value of the battery and the preset charging parameter value;

Adjusting the resistance of the adjustable resistor to a target resistance and maintaining the variable resistance in the positive direction The resistance change rate is equal to the resistance change rate of the battery internal resistance in the negative direction such that the current charging parameter value is equal to the preset charging parameter value.

As can be seen from the above, the embodiment of the present application provides a terminal that obtains a constant voltage value required when a battery is in a constant voltage charging phase, and then obtains a corresponding fixed voltage value according to the constant voltage value, according to the fixed voltage. The value is loaded with a corresponding charging voltage to the module to be charged, and the module to be charged includes a battery and an adjustable resistor connected in series, and during the charging of the battery, the resistance of the adjustable resistor is adjusted to make the current battery The charging parameter value satisfies the parameter value requirement of the charging phase. The terminal can charge the terminal battery with a fixed input voltage, and the charging speed of the terminal can be improved without continuously adjusting the input voltage.

A person skilled in the art may understand that all or part of the various steps of the foregoing embodiments may be performed by a program to instruct related hardware. The program may be stored in a computer readable storage medium, and the storage medium may include: Read Only Memory (ROM), Random Access Memory (RAM), disk or optical disk.

The charging control method, device, system, storage medium and terminal provided by the embodiments of the present application are described in detail. In the present application, the specific examples are used to explain the principles and implementation manners of the present application. The description is only for helping to understand the method of the present application and its core ideas; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the scope of specific implementations and applications, in summary The contents of this specification are not to be construed as limiting the application.

Claims (20)

A charging control method, comprising: Obtaining a constant voltage value required when the battery is in a constant voltage charging phase; Obtaining a corresponding fixed voltage value according to the constant voltage value; And charging a module to be charged according to the fixed voltage value, wherein the module to be charged comprises a battery and an adjustable resistor connected in series; During charging of the battery, the resistance of the adjustable resistor is adjusted such that the current charging parameter value of the battery meets the parameter value requirement of the charging phase. The charging control method according to claim 1, wherein the resistance value of the adjustable resistor is adjusted such that a current charging parameter value of the battery satisfies a parameter value requirement of a charging phase, including: Determining a charging phase in which the battery is currently located; Obtaining a current resistance value of the battery and a preset charging parameter value corresponding to a charging phase currently in the battery; And adjusting the resistance of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value, so that the current charging parameter value is equal to the preset charging parameter value. The charging control method according to claim 2, wherein the preset charging parameter value comprises a preset charging current value; Adjusting the resistance value of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value, so that the current charging parameter value is equal to the preset charging parameter value, including: Obtaining a first resistance value according to the fixed voltage value and the preset charging current value; Obtaining a second resistance value required by the adjustable resistor according to the first resistance value and a current resistance value of the battery; Adjusting the resistance of the adjustable resistor to the second resistance value such that the current charging current value is equal to a preset charging current value. The charging control method according to claim 2, wherein the preset charging parameter value comprises a preset charging voltage value; Adjusting the resistance value of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value, so that the current charging parameter value is equal to the preset charging parameter value, including: Obtaining a target resistance value required by the adjustable resistor according to the fixed voltage value, the preset charging voltage value, and a current resistance value of the battery; Adjusting the resistance of the adjustable resistor to the target resistance value such that the current charging voltage value is equal to the preset charging voltage value. The charging control method according to claim 2, wherein said determining a charging phase in which said battery is currently located comprises: Obtaining a current accumulated charging duration of the battery; The charging phase at which the battery is currently located is determined according to the accumulated charging duration. The charging control method according to claim 1, wherein the obtaining the corresponding fixed voltage value according to the constant voltage value comprises: Obtaining a maximum resistance or a minimum resistance of the adjustable resistor in the module to be charged; A fixed voltage value is calculated based on the maximum resistance or minimum resistance of the adjustable resistor and the constant voltage value. The charging control method according to claim 2, wherein the resistance value of the adjustable resistor is adjusted according to a current resistance value of the battery and the preset charging parameter value, so that a current charging parameter value is equal to the pre-charge Set charging parameter values, including: Determining a target resistance of the adjustable resistor according to a current resistance value of the battery and the preset charging parameter value; Adjusting the resistance of the adjustable resistor to the target resistance, and maintaining the resistance change rate of the variable resistor in the positive direction is equal to the resistance change rate of the battery internal resistance in the negative direction, so that the current charging parameter value is equal to the preset charging Parameter value. A charging control device, comprising: a first voltage value acquisition module, configured to acquire a constant voltage value required when the battery is in a constant voltage charging phase; a second voltage value obtaining module, configured to acquire a corresponding fixed voltage value according to the constant voltage value; a charging module, configured to load a to-be-charged module with a corresponding charging voltage according to the fixed voltage value, the to-be-charged module comprising a battery and an adjustable resistor connected in series; And a resistance adjustment module, configured to adjust a resistance of the adjustable resistor during charging of the battery, so that a current charging parameter value of the battery meets a parameter value requirement of the charging phase. The charging control device of claim 8, wherein the resistance adjustment module comprises: Determining a sub-module for determining a charging phase in which the battery is currently located; a parameter value obtaining submodule, configured to acquire a current resistance value of the battery, and a preset charging parameter value corresponding to a charging phase currently in the battery; The resistance adjustment submodule is configured to adjust the resistance of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value, so that the current charging parameter value is equal to the preset charging parameter value. The charging control device according to claim 9, wherein the preset charging parameter value comprises a preset charging current value; and the resistance adjusting sub-module is specifically configured to: Obtaining a first resistance value according to the fixed voltage value and the preset charging current value; Obtaining a second resistance value required by the adjustable resistor according to the first resistance value and a current resistance value of the battery; Adjusting the resistance of the adjustable resistor to the second resistance value such that the current charging current value is equal to a preset charging current value. The charging control device of claim 9, wherein the preset charging parameter value comprises a preset charging voltage value; the resistance adjusting sub-module is specifically configured to: Adjusting the resistance value of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value, so that the current charging parameter value is equal to the preset charging parameter value, including: Obtaining a target resistance value required by the adjustable resistor according to the fixed voltage value, the preset charging voltage value, and a current resistance value of the battery; Adjusting the resistance of the adjustable resistor to the target resistance value such that the current charging voltage value is equal to the preset charging voltage value. The charging control device according to claim 9, wherein said determining submodule is configured to: Obtaining a current accumulated charging duration of the battery; The charging phase at which the battery is currently located is determined according to the accumulated charging duration. The charging control device according to claim 8, wherein the first voltage value acquisition module is configured to: Obtaining a maximum resistance or a minimum resistance of the adjustable resistor in the module to be charged; A fixed voltage value is calculated based on the maximum resistance or minimum resistance of the adjustable resistor and the constant voltage value. The charge control device of claim 9, wherein the resistance adjustment sub-module is specifically configured to: Determining a target resistance of the adjustable resistor according to a current resistance value of the battery and the preset charging parameter value; Adjusting the resistance of the adjustable resistor to the target resistance, and maintaining the resistance change rate of the variable resistor in the positive direction is equal to the resistance change rate of the battery internal resistance in the negative direction, so that the current charging parameter value is equal to the preset charging Parameter value. A charging control system, comprising: a charging control device and a module to be charged, the module to be charged comprising a battery and an adjustable resistor connected in series; the charging control device being any one of claims 8-14 Charge control device. A storage medium, wherein the storage medium stores a plurality of instructions adapted to be loaded by a processor to perform the method of any one of claims 1-7. A terminal, wherein the terminal comprises: Storing a memory that can execute a program; a processor coupled to the memory; The processor calls the executable program stored in the memory, and performs the following steps: Obtaining a constant voltage value required when the battery is in a constant voltage charging phase; Obtaining a corresponding fixed voltage value according to the constant voltage value; And charging a module to be charged according to the fixed voltage value, wherein the module to be charged comprises a battery and an adjustable resistor connected in series; During charging of the battery, the resistance of the adjustable resistor is adjusted such that the current charging parameter value of the battery meets the parameter value requirement of the charging phase. The terminal according to claim 17, wherein said processor is used when the resistance of said adjustable resistor is adjusted such that a current charging parameter value of said battery satisfies a parameter value requirement of a charging phase Perform the following steps: Determining a charging phase in which the battery is currently located; Obtaining a current resistance value of the battery and a preset charging parameter value corresponding to a charging phase currently in the battery; And adjusting the resistance of the adjustable resistor according to the current resistance value of the battery and the preset charging parameter value, so that the current charging parameter value is equal to the preset charging parameter value. The terminal according to claim 18, wherein the preset charging parameter value comprises a preset charging current value, and the resistance value of the adjustable resistor is based on a current resistance value of the battery and the preset charging parameter value. The adjusting is performed such that when the current charging parameter value is equal to the preset charging parameter value, the processor is configured to perform the following steps: Obtaining a first resistance value according to the fixed voltage value and the preset charging current value; Obtaining a second resistance value required by the adjustable resistor according to the first resistance value and a current resistance value of the battery; Adjusting the resistance of the adjustable resistor to the second resistance value such that the current charging current value is equal to a preset charging current value. The terminal according to claim 18, wherein the preset charging parameter value comprises a preset charging voltage value; and the resistance of the adjustable resistor is based on a current resistance value of the battery and the preset charging parameter value The adjusting is performed such that when the current charging parameter value is equal to the preset charging parameter value, the processor is configured to perform the following steps: Obtaining a target resistance value required by the adjustable resistor according to the fixed voltage value, the preset charging voltage value, and a current resistance value of the battery; Adjusting the resistance of the adjustable resistor to the target resistance value such that the current charging voltage value is equal to the preset charging voltage value.

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