CN107994650A - Charging control method, device and equipment - Google Patents

Abstract

The application discloses a charging control method, a charging control device and charging control equipment, wherein the method comprises the steps of judging whether the current residual electric quantity of a charging module is greater than an electric quantity threshold value; if not, respectively detecting a first voltage and a second voltage at the input end when the input current of the charging module is a first charging current and a second charging current; calculating a first line impedance of the charging loop according to the first charging current, the second charging current, the first voltage and the second voltage; judging whether the impedance of the first line is greater than a resistance threshold value; if yes, judging whether the second charging current is a current threshold value; if not, judging whether the voltage at the input end of the charging module is greater than a first voltage threshold value or not when the input current of the charging module is increased to a third charging current; if not, controlling the current of the input end of the charging module to be the second charging current. The method improves the compatibility of the terminal equipment to adapters with different specifications, improves the charging efficiency, ensures the charging reliability and safety, and improves the user experience.

Description

Charging control method, device and equipment

technical field

The present application relates to the technical field of charging, and in particular to a charging control method, device and equipment.

Background technique

Usually, when the terminal device is charging, it is connected to the AC mains through an adapter, and the adapter converts the AC mains into low-voltage direct current, and then charges the battery through the charging circuit in the terminal device. At present, in order to make the charging efficiency of terminal equipment higher, the charging process is safer. The charging method of the terminal equipment is usually designed together with the matching adapter.

However, in actual use, users usually use adapters of different manufacturers and specifications, such as an output current of 1 ampere (A), 1.2 A, 1.5 A, 2 A, etc., to charge the terminal device. Due to the different output currents of different adapters, when using the above charging method, it is easy to appear that when charging the terminal equipment, the required charging current is greater than the rated output current of the adapter itself, causing the adapter to take protective measures and turn off the current output. In turn, the terminal device cannot be charged normally, which affects the use of the user.

Contents of the invention

The present application aims to solve one of the above-mentioned technical deficiencies at least to a certain extent.

Therefore, the first purpose of this application is to propose a charging control method, which improves the compatibility of terminal equipment with adapters of different specifications, and ensures the reliability and safety of charging while improving charging efficiency. Improved user experience.

The second purpose of the present application is to provide a charging control device.

The third purpose of the present application is to provide a terminal device.

The fourth object of the present application is to provide a computer-readable storage medium.

In order to achieve the above purpose, the charging control method of the embodiment of the first aspect of the present application is applied to a terminal with a charging module, including: judging whether the current remaining power of the charging module is greater than the power threshold; if not, detecting the charging modules respectively When the input current is the first charging current and the second charging current, the first voltage and the second voltage at the input end, wherein, the first charging current is smaller than the second charging current; according to the first charging current, the second charging current Two charging current, the first voltage and the second voltage, calculate the first line impedance of the charging circuit; judge whether the first line impedance is greater than the resistance threshold; if so, then judge whether the second charging current is the current threshold; if not, then Judging whether the input terminal voltage of the charging module is greater than the first voltage threshold when the input current of the charging module increases to the third charging current; if not, controlling the input terminal current of the charging module to be the second charging current.

In order to achieve the above purpose, the charging control device of the embodiment of the second aspect of the present application is applied to a terminal with a charging module, including: a first judging module, used to judge whether the current remaining power of the charging module is greater than the power threshold; the first control module, for if not, respectively detecting the first voltage and the second voltage at the input terminal when the input current of the charging module is the first charging current and the second charging current, wherein the first charging current is less than the The second charging current; the calculation module is used to calculate the first line impedance of the charging circuit according to the first charging current, the second charging current, the first voltage and the second voltage; the second judging module is used to judge the Whether the first line impedance is greater than the resistance threshold; the third judging module is used to judge whether the second charging current is the current threshold; if not, the third judging module is used to judge when the input current of the charging module increases to the third When charging current, whether the input terminal voltage of the charging module is greater than the first voltage threshold; the second control module is used to control the input terminal current of the charging module to be the second charging current if not.

In order to achieve the above object, the terminal device according to the embodiment of the third aspect of the present application includes a memory, a processor, and a computer program stored on the memory and operable on the processor. When the processor executes the program, the first On the one hand, the charging control method described in the embodiment.

In order to achieve the above purpose, the computer-readable storage medium of the embodiment of the fourth aspect of the present application stores a computer program thereon, and when the computer program is executed by a processor, the charging control method described in the embodiment of the first aspect is implemented.

The technical solution disclosed in this application has the following beneficial effects:

When the terminal device is performing a charging operation, it first judges whether the current remaining power of the charging module of the terminal device is greater than the power threshold. When charging current and second charging current, input the first voltage and second voltage, and calculate the first line impedance of the charging circuit according to the first charging current, second charging current, first voltage and second voltage, and then judge Whether the calculated first line impedance is greater than the resistance threshold, if the first line impedance is greater than the resistance threshold, then further judge whether the second charging current is the current threshold, if not, then judge that the input current of the charging module has increased to the third charging current, whether the voltage at the input terminal of the charging module is greater than the first voltage threshold, if not, control the current at the input terminal of the charging module to be the second charging current. Thus, when charging the terminal equipment, the charging current of the terminal equipment can be adaptively adjusted according to the remaining capacity, the output capacity of the adapter, and the impedance of the charging line, thereby improving the ability of the terminal equipment to adapt to adapters of different specifications. Compatibility, while improving the charging efficiency, it also ensures the reliability and safety of charging and improves the user experience.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, wherein,

FIG. 1 is a flowchart of a charging control method according to an embodiment of the present application;

2 is a flowchart of a charging control method according to another embodiment of the present application;

FIG. 3 is a flow chart of a charging control method according to yet another embodiment of the present application;

Fig. 4 is a schematic structural diagram of a charging control device according to an embodiment of the present application;

Fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

Detailed ways

Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.

In order to solve the related technology, when the user uses adapters of different specifications to charge the terminal equipment, the required charging current is likely to be greater than the rated output current of the adapter itself, causing the adapter to take protective measures to shut down the current output, causing the terminal equipment to fail to operate normally. The charging operation affects the user's use, and a charging control method is proposed.

In the charging control method provided by this application, when performing a charging operation on a terminal device, it first judges whether the current remaining power of the charging module of the terminal device is greater than the power threshold, and if it is judged that the current remaining power of the charging module is less than the power threshold, then respectively When the input current of the charging module is the first charging current and the second charging current, the first voltage and the second voltage at the input terminal are detected, and the charging is calculated according to the first charging current, the second charging current, the first voltage and the second voltage Then determine whether the calculated first line impedance is greater than the resistance threshold, if the first line impedance is greater than the resistance threshold, further determine whether the second charging current is the current threshold, if not the current threshold, then judge When the input current of the charging module increases to the third charging current, whether the voltage at the input terminal of the charging module is greater than the first voltage threshold, if not, control the current at the input terminal of the charging module to be the second charging current. Thus, when charging the terminal equipment, the charging current of the terminal equipment can be adaptively adjusted according to the remaining capacity, the output capacity of the adapter, and the impedance of the charging line, thereby improving the ability of the terminal equipment to adapt to adapters of different specifications. Compatibility, while improving the charging efficiency, it also ensures the reliability and safety of charging and improves the user experience.

The charging control method of the embodiment of the present application will be described below with reference to the accompanying drawings.

Fig. 1 is a flowchart of a charging control method according to an embodiment of the present application.

As shown in Figure 1, the charging control method of the present application may include the following steps:

Step 101, judge whether the current remaining power of the charging module is greater than the power threshold, if less, execute step 102, otherwise execute step 108.

Specifically, the charging control method provided in the embodiment of the present application can be executed by the charging control device provided in the present application, and the above-mentioned device is configured in a terminal device to control the charging process of the terminal.

Wherein, in this embodiment, the terminal device may be any hardware device having a charging module, such as a smart phone, a personal digital assistant (Personal Digital Assistant, PDA for short), a tablet computer, etc., which is not specifically limited in this application. In this embodiment, the charging module may refer to a rechargeable battery in the terminal device.

Wherein, the power threshold can be adaptively set according to the properties of the charging module, such as 80%, 85%, etc., which is not specifically limited here.

Specifically, after detecting that the charging module is connected to the adapter, the charging control device can detect the current remaining power of the charging module, and compare the detection result with the power threshold to determine whether the current remaining power of the charging module is greater than the power threshold. Wherein, the current remaining power of the charging module can be represented by a percentage.

During specific implementation, this embodiment can calculate the current remaining power of the charging module according to the discharge time and discharge current of the charging module after the last charging recorded by the storage unit, and the capacity of the charging module at the end of the last charging.

Specifically, formula (1) can be used to calculate the current remaining power of the charging module.

C＝Q-I*t………………………………………(1)

Among them, C is the current remaining power of the charging module, Q is the capacity of the charging module at the end of the last charge, I is the discharge current of the charging module, and t is the discharge time of the charging module after the last charge.

For example, if the capacity of the charging module at the end of the last charge is 3000 milliamps (mA), and the discharge current is 200mA, and the discharge time is 1 hour (h), then the current remaining power of the charging module can be calculated using formula (1) 2800mA. That is to say, the current remaining power of the charging module is 94% of the rated capacity.

If the power threshold in this embodiment is 80%, it means that the current remaining power of the charging module is greater than the power threshold.

Step 102, respectively detecting the first voltage and the second voltage at the input terminal when the input current of the charging module is the first charging current and the second charging current.

Wherein, the first charging current is smaller than the second charging current.

Specifically, the first charging current and the second charging current can be any two of the multiple groups of charging currents preset by the charging control device; or they can be any two of the charging currents calculated according to the current remaining capacity of the charging module. , which is not specifically limited here.

Specifically, the charging control device of this embodiment can detect the input current of the charging module in real time, and when it is determined that the input current of the charging module is the first charging current and the second charging current, obtain the input terminal of the charging module corresponding to the first charging current. The first voltage, and the second voltage corresponding to the second charging current.

Step 103, calculating a first line impedance of the charging circuit according to the first charging current, the second charging current, the first voltage and the second voltage.

Specifically, when charging the charging module, the charging current output from the adapter to the charging module needs to be transmitted through a wire, and the wire itself has resistance, so when the charging current reaches the charging module through the wire, a voltage difference will be generated, so that the input terminal of the charging module The voltage is lower than the voltage at the output port of the adapter, and the above-mentioned voltage difference will increase with the increase of the output current of the adapter.

Therefore, in order to determine whether the line impedance between the adapter and the charging module is reasonable, the present application can use the first charging current, the second charging current, the first voltage and the second voltage to calculate the first line impedance of the charging circuit.

In specific implementation, the first line impedance of the charging circuit can be calculated by formula (2):

Among them, R is the first line impedance of the charging circuit, V ₁ is the first voltage at the input terminal of the charging module, V ₂ is the second voltage at the input terminal of the charging module, I ₁ is the first charging current of the charging module, and I ₂ is the charging module The second charging current.

For example, if the first charging current of the charging module is 300 milliamperes (mA), the second charging current is 500 mA, the first voltage is 5.1 volts (V), and the second voltage is 5.0 V, then formula (2) can be used to calculate The first line impedance out of the charging loop is

Step 104, judging whether the impedance of the first line is greater than a resistance threshold, and if so, performing step 105.

Wherein, the resistance threshold value in this embodiment may be selected according to experience, which is not specifically limited. Such as 100 (mΩ) and so on.

Continuing to use the above example for description, if the resistance threshold in this embodiment is 100 mΩ, it means that the impedance of the first line is greater than the resistance threshold.

Step 105, judging whether the second charging current is the current threshold, if not, then execute step 106.

Wherein, in this embodiment, the current threshold is the maximum charging current value allowed by the charging module during charging, such as 2A, 2.1A, etc., which is not specifically limited here.

That is to say, when the charging operation is performed on the charging module, the maximum input current is the current threshold, otherwise an excessive charging current will have an adverse effect on the charging module.

Continuing to use the above example for illustration, if the current threshold is 2A and the second charging current is 500mA, it indicates that the second charging current is smaller than the current threshold.

Step 106 , judging whether the input terminal voltage of the charging module is greater than the first voltage threshold when the input current of the charging module increases to the third charging current, and if not, go to step 107 .

Wherein, the first voltage threshold is a preset first limited voltage value of the input terminal of the charging module, and the charging module can only charge when the voltage value of the input terminal of the charging module is greater than the first voltage threshold. The magnitude of the first voltage threshold can be determined according to the hardware circuit of the charging module, for example, 5.1V, etc., which is not specifically limited here.

Specifically, when it is determined that the second charging current is less than the current threshold, it means that the current charging current has not reached the maximum charging current allowed by the charging module, and at this time, the input current to the charging module can continue to be increased.

Further, in order to prevent the increased charging current from exceeding the output capability of the adapter, causing the adapter to perform protection processing and turn off the output of the current, before increasing the charging current, this application first calculates when the charging current increases from the second charging current to When the third charging current is used, the corresponding input terminal voltage value (third voltage value), and the third voltage value is compared with the first voltage value to determine whether the third voltage value is greater than the first voltage threshold.

During specific implementation, in this embodiment, a third charging current that is one level higher than the second charging current can be selected from among multiple sets of preset charging currents, and then according to the output terminal voltage of the adapter, the first line impedance of the charging circuit, The second voltage and the third charging current are used to calculate the third voltage at the input terminal of the charging module.

During specific implementation, formulas (3) and (4) can be used to calculate the third voltage at the input terminal of the charging module:

V _s =(I ₂ ×R)+V ₂ …………………………………(3)

V ₃ =V _s -(I ₃ ×R)=(I ₂ ×R)+V ₂ -(I ₃ ×R)=V ₂ -(I ₃ -I ₂ )×R...(4)

Among them, Vs is the output voltage of the adapter, V2 is the _second voltage at the input terminal of the charging module, _V3 is the third voltage at the input terminal of the charging module, _I2 is the second charging current of the charging module, and _I3 is the first charging current of the charging module current, R is the first line impedance of the charging circuit.

For example, if the selected third charging current is 800mA, the first line impedance of the charging circuit is 150mΩ, the second charging current of the charging module is 500mA, and the second voltage at the input terminal of the charging module is 5.0V, then based on the formula (3 ), the output voltage of the adapter can be calculated as 5.075.

Further, after the output terminal voltage of the adapter is calculated, formula (4) can be used to calculate that when the input current of the charging module is 800mA, the corresponding third voltage is 4.955V.

Wherein, if the first voltage threshold is 5.1V, it indicates that the third voltage 4.955 of the charging module is lower than the first voltage threshold 5.1V.

Step 107, controlling the current at the input terminal of the charging module to be the second charging current.

Specifically, when it is determined that the input current of the charging module is the third charging current and the corresponding third voltage at the input terminal is lower than the first voltage threshold, it may indicate that the output capability of the adapter has exceeded its own rated output capability. Therefore, in order to avoid the problem that the charging module cannot perform normal charging operation due to the protection measures taken by the adapter because the output exceeds its own capacity, the charging control device in this embodiment can control the input current of the charging module to be the second charging current to control the charging module. Perform charging operation.

Step 108, determine the fourth charging current according to the current remaining power, and control the current at the input terminal of the charging module to be the fourth charging current.

Specifically, when it is determined that the current remaining power of the charging module is greater than the power threshold, the charging control device can directly charge the charging module with a smaller charging current, or calculate a charging current to charge the charging module according to the current remaining power. , which is not limited in this embodiment.

It should be noted that the charging control device can also periodically detect the remaining power of the charging module during the charging process, so as to adjust the charging current, so as to make the charging process safer and more reliable.

The charging control method provided by the present application can adaptively adjust the charging current of the terminal device according to the remaining capacity, the output capacity of the adapter, and the impedance of the charging line during the charging operation of the terminal device, thereby improving the charging efficiency of the terminal device. Compatibility with adapters of different specifications not only improves charging efficiency, but also ensures charging reliability and safety, and improves user experience.

From the above analysis, it can be known that the present application can further adaptively adjust the charging current when it is determined that the first line impedance of the charging circuit is greater than the resistance threshold. In another situation of the present application, when it is judged that the first line impedance is less than the resistance threshold, it is necessary to further judge the line impedance to determine the magnitude of the charging current for the charging module. The charging control method of the present application will be further described below with reference to FIG. 2 .

Fig. 2 is a flow chart of another charging control method of the present application.

As shown in Figure 2, the charging control method of the present application may include the following steps:

Step 201, judge whether the current remaining power of the charging module is greater than the power threshold, if less, execute step 202, otherwise execute step 209.

Step 202, respectively detecting the first voltage and the second voltage at the input terminal when the input current of the charging module is the first charging current and the second charging current.

Wherein, the first charging current is smaller than the second charging current.

Step 203, calculate a first line impedance of the charging circuit according to the first charging current, the second charging current, the first voltage and the second voltage.

Step 204, judging whether the impedance of the first line is greater than the resistance threshold, and if smaller, execute step 205.

For example, if the resistance threshold is 150mΩ and the first line impedance is 200mΩ, it means that the first line impedance is greater than the resistance threshold.

Step 205 , judging whether the second charging current is equal to the current threshold, if so, execute step 206 , otherwise execute step 207 .

Step 206, controlling the current at the input terminal of the charging module to be the second charging current.

Specifically, when it is determined that the second charging current is equal to the current threshold, it means that the current second charging current has already reached the maximum current input by the charging module, so no further judgment operation is required, and the second charging current can be directly used to charge The module performs charging operation.

Step 207, detecting the third voltage at the input terminal when the input current of the charging module increases to the third charging current.

Step 208, perform the step of calculating the first line impedance of the charging circuit according to the third voltage, the third charging current, the second voltage and the second charging current (step 203).

Step 209, determine a fourth charging current according to the current remaining power, and control the current at the input terminal of the charging module to be the fourth charging current.

The charging control method of the embodiment of the present application can adaptively adjust the charging current of the terminal device according to the remaining capacity, the output capacity of the adapter, and the impedance of the charging line during the charging operation of the terminal device, thereby improving the charging efficiency of the terminal device. The compatibility of the device with adapters of different specifications not only improves the charging efficiency, but also ensures the reliability and safety of charging and improves the user experience. In addition, better effects can be achieved without changing the circuit, and the cost can be effectively saved.

It can be seen from the above analysis that the present application can adaptively adjust the charging current according to the resistance threshold, the current threshold and the first voltage threshold. In another situation of the present application, in order to further reliably control the charging process, the adaptive process of the charging current may also be controlled in combination with the second voltage threshold. The charging control method of the present application will be further described below with reference to FIG. 3 .

Fig. 3 is a flow chart of another charging control method of the present application.

As shown in Figure 3, the charging control method of the present application may include the following steps:

Step 301 , judging whether the current remaining power of the charging module is greater than the power threshold, if less, execute step 302 , otherwise execute step 315 .

Step 302 , respectively detecting the first voltage and the second voltage at the input terminal when the input current of the charging module is the first charging current and the second charging current, wherein the first charging current is smaller than the second charging current.

Step 303, calculate a first line impedance of the charging circuit according to the first charging current, the second charging current, the first voltage and the second voltage.

Step 304, judging whether the impedance of the first line is greater than a resistance threshold, and if so, performing step 305.

Step 305, judging whether the second charging current is the current threshold, if so, execute step 306, otherwise execute step 307a.

Step 306, controlling the current at the input terminal of the charging module to be the second charging current.

Step 307a, increasing the second charging current to the third charging current.

Step 307b, judging whether the voltage at the input terminal of the charging module is greater than the first voltage threshold, and if so, performing step 308.

Step 308, increase the current at the input end of the charging module, and detect a third voltage at the input end.

Specifically, in this embodiment, the voltage sensor in the charging control device can detect the third voltage at the input end of the charging module, which is not specifically limited here.

Step 309 , judging whether the third voltage is less than the second voltage threshold, if less, execute step 310 , otherwise execute step 311 .

Wherein, in this embodiment, the second voltage threshold is the software voltage value of the input terminal of the charging module, for example, 5.2V, etc., which is not specifically limited here.

It can be understood that, in this application, the first voltage threshold is smaller than the second voltage threshold.

Specifically, in actual use, two voltage thresholds can be set for the voltage limiting point at the input end of the charging module. When the voltage at the input terminal of the charging module exceeds the first voltage threshold, the charging module can be guaranteed to be in the charging state, and only when the voltage at the input terminal exceeds the second voltage threshold, the normal charging operation of the charging module can be realized.

Therefore, when the voltage at the input terminal of the charging module is greater than the first voltage threshold, it is determined whether the charging operation of the charging module can reliably enter the charging state by judging whether the third voltage is lower than the second voltage threshold.

Among them, if the third voltage is less than the second voltage threshold, it means that the current charging module can only be in the charging state, which does not satisfy the requirement to ensure that the charging module is in a reliable charging state; if the third voltage is greater than the second voltage threshold, it means that the current charging module in a reliable state of charge.

Step 310, controlling the current at the input terminal of the charging module to be the second charging current.

Step 311: Determine a third voltage threshold according to the second voltage and preset error compensation parameters.

Wherein, the preset error compensation parameters may be adaptively set according to the performance of the adapter, which is not specifically limited in the present application. For example, 0.1 and so on.

Specifically, in actual use, there may be voltage compensation (error compensation parameters) at the output end of the adapter, which will affect the detection accuracy of the voltage at the input end of the charging module. Therefore, in order to improve the detection accuracy of whether the voltage at the input terminal of the charging module is greater than the voltage value of the input terminal voltage limit point, the present application can determine the third voltage threshold according to the second voltage and the preset error compensation parameter.

During specific implementation, the third voltage threshold can be determined based on formula (4): V ₂ -(I ₃ -I ₂ )×RN, where V ₂ is the second voltage at the input terminal of the charging module, and I ₂ is the charging module The second charging current, I ₃ is the third charging current of the charging module, R is the first line impedance of the charging circuit, and N is the preset error compensation parameter.

For example, if the second charging current of the charging module is 500mA, the third charging current of the charging module is 800mA, the first line impedance of the charging circuit is 150mΩ, and the second voltage at the input terminal of the charging module is 5.0V, the preset error compensation parameters is 0.11, then the third voltage threshold can be calculated as: 4.845V.

Step 312 , judging whether the third voltage is greater than the third voltage threshold, if so, execute step 313 , otherwise execute step 314 .

Specifically, after the third voltage threshold is determined, the charging control device in this embodiment may compare the detected third voltage with the third voltage threshold to determine whether the third voltage is greater than the third voltage threshold.

Step 313, continue to increase the input current of the charging module, and return to step 307b.

Step 314, controlling the current at the input terminal of the charging module to be the second charging current.

Step 315, determine the fourth charging current according to the current remaining power, and control the current at the input terminal of the charging module to be the fourth charging current.

The charging control method of the embodiment of the present application determines the voltage threshold of the input terminal of the charging module by combining the error existing at the output terminal of the adapter, which not only improves the accuracy of the detection of the output performance of the adapter, but also improves the terminal equipment’s sensitivity to different specifications. The compatibility of the adapter also improves the charging efficiency, ensures the reliability and safety of charging, and improves the user experience. In addition, better effects are achieved on the basis of not changing the circuit, and the consumption cost is effectively saved.

In order to realize the above embodiments, the present application also proposes a charging control device.

Fig. 4 is a schematic structural diagram of a charging control device according to an embodiment of the present application.

As shown in Figure 4, the charging control device of the present application includes: a first judging module 11, a first control module 12, a computing module 13, a second judging module 14, a third judging module 15, a fourth judging module 16, a second Control module 17.

Wherein, the first judging module 11 is used to judge whether the current remaining power of the charging module is greater than the power threshold;

If not, the first control module 12 is used to respectively detect the first voltage and the second voltage at the input terminal when the input current of the charging module is the first charging current and the second charging current, wherein the first charging current less than the second charging current;

The calculation module 13 is used to calculate the first line impedance of the charging circuit according to the first charging current, the second charging current, the first voltage and the second voltage;

The second judging module 14 is used to judge whether the first line impedance is greater than a resistance threshold;

The third judging module 15 is used for judging whether the second charging current is the current threshold if so;

If not, the fourth judging module 16 is used to judge whether the voltage at the input terminal of the charging module is greater than the first voltage threshold when the input current of the charging module increases to the third charging current;

If not, the second control module 17 is used to control the current at the input terminal of the charging module to be the second charging current.

It should be noted that the foregoing explanations of the embodiment of the charging control method are also applicable to the charging control device of this embodiment, and its implementation principles are similar, so details are not repeated here.

In the charging control device provided in this embodiment, when performing a charging operation on a terminal device, it first judges whether the current remaining power of the charging module of the terminal device is greater than the power threshold, and if it is determined that the current remaining power of the charging module is less than the power threshold, Then respectively detect the first voltage and the second voltage at the input terminal when the input current of the charging module is the first charging current and the second charging current, and calculate according to the first charging current, the second charging current, the first voltage and the second voltage Find the first line impedance of the charging circuit, and then judge whether the calculated first line impedance is greater than the resistance threshold, if the first line impedance is greater than the resistance threshold, then further determine whether the second charging current is the current threshold, if not the current threshold, Then judge whether the input terminal voltage of the charging module is greater than the first voltage threshold when the input current of the charging module increases to the third charging current, and if not, control the current at the input terminal of the charging module to be the second charging current. Thus, when charging the terminal equipment, the charging current of the terminal equipment can be adaptively adjusted according to the remaining capacity, the output capacity of the adapter, and the impedance of the charging line, thereby improving the compatibility of the terminal equipment with adapters of different specifications. Compatibility, while improving the charging efficiency, it also ensures the reliability and safety of charging and improves the user experience.

In order to implement the foregoing embodiments, the present application further proposes a terminal device.

Fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

Referring to FIG. 5 , the embodiment of the present application takes the terminal device as an example for illustration and display. The terminal device 20 of the present application includes a memory 21 , a processor 22 and a computer program stored in the memory 21 and operable on the processor 22 . When the processor 22 executes the program, the charging control method described in the embodiment of the first aspect is realized. Wherein the charging control method may include: judging whether the current remaining power of the charging module is greater than the power threshold; if not, detecting the first voltage at the input terminal when the input current of the charging module is the first charging current and the second charging current and a second voltage, wherein the first charging current is smaller than the second charging current; according to the first charging current, the second charging current, the first voltage and the second voltage, calculate the first line impedance of the charging circuit ; Judging whether the first line impedance is greater than the resistance threshold; if so, judging whether the second charging current is the current threshold; if not, judging that when the input current of the charging module increases to the third charging current, the input of the charging module Whether the terminal voltage is greater than the first voltage threshold; if not, control the current at the input terminal of the charging module to be the second charging current.

Wherein, in this embodiment, the terminal device may be any hardware device having a charging module, such as a smart phone, a personal digital assistant (Personal Digital Assistant, PDA for short), a tablet computer, etc., which is not specifically limited in this application.

It should be noted that the foregoing explanations of the embodiment of the charging control method are also applicable to the terminal device of this embodiment, and its implementation principles are similar, so details are not repeated here.

In the terminal device provided in this embodiment, when charging the terminal device, it first judges whether the current remaining power of the charging module of the terminal device is greater than the power threshold, and if it is determined that the current remaining power of the charging module is less than the power threshold, then When the input current of the charging module is the first charging current and the second charging current, the first voltage and the second voltage at the input end are respectively detected, and calculated according to the first charging current, the second charging current, the first voltage and the second voltage The first line impedance of the charging circuit, and then judge whether the calculated first line impedance is greater than the resistance threshold, if the first line impedance is greater than the resistance threshold, then further judge whether the second charging current is the current threshold, if not the current threshold, then It is judged whether the input terminal voltage of the charging module is greater than the first voltage threshold when the input current of the charging module increases to the third charging current, and if not, the current at the input terminal of the charging module is controlled to be the second charging current. Thus, when charging the terminal equipment, the charging current of the terminal equipment can be adaptively adjusted according to the remaining capacity, the output capacity of the adapter, and the impedance of the charging line, thereby improving the ability of the terminal equipment to adapt to adapters of different specifications. Compatibility, while improving the charging efficiency, it also ensures the reliability and safety of charging and improves the user experience

In order to implement the above embodiments, the present application also proposes a computer-readable storage medium.

The computer-readable storage medium stores a computer program thereon, and when the program is executed by a processor, the charging control method of the embodiment of the first aspect is implemented. Wherein the charging control method may include: judging whether the current remaining power of the charging module is greater than the power threshold; if not, detecting the first voltage at the input terminal when the input current of the charging module is the first charging current and the second charging current and a second voltage, wherein the first charging current is smaller than the second charging current; according to the first charging current, the second charging current, the first voltage and the second voltage, calculate the first line impedance of the charging circuit ; Judging whether the first line impedance is greater than the resistance threshold; if so, judging whether the second charging current is the current threshold; if not, judging that when the input current of the charging module increases to the third charging current, the input of the charging module Whether the terminal voltage is greater than the first voltage threshold; if not, control the current at the input terminal of the charging module to be the second charging current.

In this application, unless otherwise clearly specified and limited, the terms "arrangement", "connection" and other terms should be understood in a broad sense, for example, it can be mechanical connection or electrical connection; it can be direct connection or through An indirect connection through an intermediary may be an internal communication between two elements or an interaction relationship between two elements, unless otherwise clearly defined. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present application.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent modules, segments or portions of code comprising one or more executable instructions for implementing specific logical functions or steps of the process , and the scope of preferred embodiments of the present application includes additional implementations in which functions may be performed out of the order shown or discussed, including in substantially simultaneous fashion or in reverse order depending on the functions involved, which shall It should be understood by those skilled in the art to which the embodiments of the present application belong.

It should be understood that each part of the present application may be realized by hardware, software, firmware or a combination thereof. In the embodiments described above, various steps or methods may be implemented by software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques known in the art: Discrete logic circuits, ASICs with suitable combinational logic gates, Programmable Gate Arrays (PGAs), Field Programmable Gate Arrays (FPGAs), etc.

Those of ordinary skill in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. During execution, one or a combination of the steps of the method embodiments is included.

The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present application, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (10)

1. A kind of 1. charge control method, applied to the terminal with charging module, it is characterised in that including：

   Judge whether the charging module current residual electricity is more than power threshold；

   If it is not, when the input current for then detecting the charging module respectively is the first charging current and the second charging current, input The first voltage and second voltage at end, wherein, first charging current is less than second charging current；

   According to first charging current, the second charging current, first voltage and second voltage, the First Line of charge circuit is calculated Roadlock resists；

   Judge whether the first line impedance is more than resistance threshold；

   If so, then judging whether the second charging current is current threshold；

   If it is not, then judge when charging module input current increases to three charging currents, the input terminal electricity of the charging module Whether pressure is more than first voltage threshold value；

   If it is not, it is the second charging current then to control the charging module input terminal electric current.
2. 2. the method as described in claim 1, it is characterised in that described to judge whether present battery remaining capacity is more than electricity threshold After value, further include：

   If so, the 4th charging current is then determined according to the current residual electricity；

   It is the 4th charging current to control the charging module input terminal electric current.
3. 3. the method as described in claim 1, it is characterised in that it is described judge the second charging current whether be current threshold it Afterwards, further include：

   If so, it is the second charging current then to control the charging module input terminal electric current.
4. 4. the method as described in claim 1, it is characterised in that judge when charging current increases to three charging currents, institute Whether the input terminal voltage for stating charging module is more than after first voltage threshold value, further includes：

   If so, when then to detect the charging module input terminal electric current be three charging currents, the tertiary voltage of input terminal；

   Judge whether the tertiary voltage is less than second voltage threshold value；

   If so, it is the second charging current then to control the charging module input terminal electric current.
5. 5. method as claimed in claim 4, it is characterised in that described to judge whether the tertiary voltage is less than second voltage threshold After value, further include：

   If it is not, tertiary voltage threshold value is then determined according to the second voltage and default error compensation parameter；

   Judge whether the tertiary voltage is more than tertiary voltage threshold value；

   If it is not, it is the second charging current then to control the charging module input terminal electric current；

   Judge if so, then performing when charging module input current increases to five charging currents, the input of the charging module The step of whether terminal voltage is more than first voltage threshold value.
6. 6. the method as described in claim 1, it is characterised in that described to judge whether the first line impedance is more than resistance threshold After value, further include：

   If it is not, then judging whether second charging current is equal to current threshold；

   If so, it is the second charging current then to control the charging module input terminal electric current.
7. 7. method as claimed in claim 6, it is characterised in that described to judge whether second charging current is equal to current threshold After value, further include：

   If it is not, when then detection charging module input current increases to three charging currents, the tertiary voltage of input terminal；

   According to the tertiary voltage, the 3rd charging current, second voltage and the second charging current, perform and calculate the charge circuit First line impedance the step of.
8. A kind of 8. battery charge controller, applied to the terminal with charging module, it is characterised in that including：

   First judgment module, for judging whether the charging module current residual electricity is more than power threshold；

   First control module, for if it is not, then detecting the input current of the charging module respectively as the first charging current and the During two charging currents, the first voltage and second voltage of input terminal, wherein, first charging current is less than the described second charging Electric current；

   Computing module, for being filled according to first charging current, the second charging current, first voltage and second voltage, calculating The first line impedance of electrical circuit；

   Second judgment module, for judging whether the first line impedance is more than resistance threshold；

   3rd judgment module, for if so, then judging whether the second charging current is current threshold；

   4th judgment module, it is described to fill for if it is not, then judge when charging module input current increases to three charging currents Whether the input terminal voltage of electric module is more than first voltage threshold value；

   Second control module, for if it is not, it is the second charging current then to control the charging module input terminal electric current.
9. 9. a kind of terminal device, it is characterised in that including memory, processor and storage on a memory and can be on a processor The computer program of operation, when the processor performs described program, to realize the charging control as described in claim 1-7 is any Method processed.
10. 10. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the computer program quilt When processor performs, to realize the charge control method as described in claim 1-7 is any.