WO2017020592A1

WO2017020592A1 - Discharging method, terminal equipment, and computer storage medium

Info

Publication number: WO2017020592A1
Application number: PCT/CN2016/076931
Authority: WO
Inventors: 齐红芳
Original assignee: 深圳市中兴微电子技术有限公司
Priority date: 2015-08-06
Filing date: 2016-03-21
Publication date: 2017-02-09
Also published as: CN106451580A

Abstract

A discharging method, terminal equipment, and a computer storage medium. The discharging method comprises: upon detecting a load, obtaining a first voltage of a present battery, a minimal working voltage of terminal equipment, and battery internal resistance; determining, according to the first voltage, the minimal working voltage, and the battery internal resistance, a first discharging current, and discharging based on the first discharging current; obtaining a second voltage of the battery every first predefined period; when a voltage difference between the first and second voltages exceeds a predefined voltage, determining, according to the second voltage, the minimal working voltage, the first discharging current, and the battery internal resistance, a second discharging current; and when the second discharging current satisfies a predefined rule, determining, according to a user instruction, whether to continue discharging.

Description

Discharge method, terminal device and computer storage medium

Technical field

The present invention relates to the field of mobile communication control technologies, and in particular, to a discharge method, a terminal device, and a computer storage medium.

Background technique

With the development of the Internet and mobile communication technologies, electronic devices with Internet access and communication functions are also common. With the increasing reliance and demand for network and mobile communication, electronic devices often have insufficient battery power during use. Problems such as insufficient standby time. Therefore, various charging devices have appeared, for example, a charging treasure with a mobile phone dialing function, a charging treasure with a wifi function, etc., and such a charging device having other functions can be collectively referred to as a modem. Functional charging device.

As shown in FIG. 1 , the terminal device having both the modem function and the charging function generally has three working modes: the first working mode is only used as a common function device, for example, data service, audio and video service, and communication service. The display function does not use the charging function; the second working mode is that only the charging function is used, and the modem function is not used; the third working mode is that the modem function of the communication, data service, etc. of the terminal device is also used. Use the charging function. In the first mode of operation and the second mode of operation, the battery is only used by one party.

In the third mode of operation, as shown in Figure 1, the dotted arrow points to the direction of current flow, where I _A is the power consumption of other functional modules of the terminal device, relatively stable, without much fluctuations and changes; The power consumption of I _B is determined by the load, and the values of different loads I _B will be relatively different; as shown in Fig. 2, the solid line indicates the change of the battery voltage during the discharge process of the terminal device with the discharge function in the prior art. From the moment when the working mode is switched to the third working mode, I _B will suddenly increase from 0A to 500mA, 1A or even 2A. This change may cause a sudden change in the voltage of the battery, as shown in point B in Figure 2. The change of point D, and this sudden voltage drop is likely to cause the battery to power the other functional modules of the terminal device to support its normal operation, causing other functional modules to suddenly lose power, thereby affecting the user's use.

Summary of the invention

In order to solve the technical problems existing in the prior art, embodiments of the present invention are expected to provide a discharge method and a terminal device, which solves the problem that other functions of the terminal device cannot be caused due to a sudden decrease in battery voltage during discharge of the battery of the terminal device. .

The technical solution of the embodiment of the present invention is implemented as follows:

Embodiments of the present invention provide a discharging method, and the method includes:

When the load is detected, obtaining the first voltage of the current battery, the minimum operating voltage of the terminal device itself, and the internal resistance of the battery;

Determining a first discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery, and discharging according to the first discharge current value;

Acquiring a second voltage of the battery every first preset time;

Determining, according to the second voltage, the minimum operating voltage, the first discharging current value, and the internal resistance of the battery, when a voltage difference between the first voltage and the second voltage is greater than a preset voltage value Second discharge current value;

When the second discharge current value satisfies a preset rule, it is determined according to a user instruction whether to continue discharging.

The determining, by the first voltage, the minimum operating voltage, and the internal resistance of the battery, the first discharge current value, including:

Determining a first maximum discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery;

The maximum value of the pre-stored current values is selected as a first current value, and when the first current value is less than the first maximum discharge current value, determining that the first current value is the first discharge current value.

Determining a second maximum discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery, the second maximum discharge current value being the first discharge current value.

The determining, by the second voltage, the minimum operating voltage, the first discharge current value, and the internal resistance of the battery, the second discharge current value, including:

Determining a third maximum discharge current value according to the second voltage, the minimum operating voltage, the first discharge current value, and the internal resistance of the battery;

The maximum value of the pre-stored current values is selected as a second current value, and when the second current value is less than the third maximum discharge current value, the second current value is the second discharge current value.

Wherein, when the second discharge current value satisfies a preset rule, determining whether to continue discharging according to a user indication, including:

When the second discharge current value is less than or equal to a minimum value of the pre-stored current values, the user is prompted to be under-powered, and determining whether to continue discharging according to the user indication.

Determining a fourth maximum discharge current value according to the second voltage, the minimum operating voltage, the first discharge current value, and the battery internal resistance, and the fourth maximum discharge current value is the second discharge current value .

When the second discharge current value is less than the preset current value, the user is prompted to be under-powered, and determining whether to continue discharging according to the user indication.

The embodiment of the present invention further provides a terminal device, where the terminal device includes: a charging and discharging unit, and a control unit;

The control unit is configured to acquire a first voltage of the current battery, a minimum operating voltage of the terminal device, and a battery internal resistance when the load is detected, and configured to be according to the first voltage, the minimum operating voltage, and the The internal resistance of the battery determines a first discharge current value; and is further configured to acquire a second voltage of the battery every first preset time; when a voltage difference between the first voltage and the second voltage is greater than a preset voltage value Determining, according to the second voltage, the minimum operating voltage, the first discharge current value, and the internal resistance of the battery, a second discharge current value; further configured to: when the second discharge current value satisfies a preset rule When it is determined according to the user's instruction whether to continue discharging;

The charge and discharge unit is configured to discharge according to the first discharge current value.

The control unit is configured to determine a first maximum discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery; and further configured to select a maximum value of the pre-stored current value as the first a current value, when the first current value is less than the first maximum discharge current value, determining that the first current value is the first discharge current value.

The control unit is configured to determine a second maximum discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery, and the second maximum discharge current value is the first discharge current value.

The control unit is configured to determine a third maximum discharge current value according to the second voltage, the minimum operating voltage, the first discharge current value, and the battery internal resistance; and further configured to select the preset The maximum value of the stored current values is a second current value, and when the second current value is less than the third maximum discharge current value, the second current value is the second discharge current value.

The control unit is configured to prompt the user that the power is too low when the second discharge current value is less than or equal to a minimum value of the pre-stored current value, and determine whether to continue discharging according to the user indication.

The control unit is configured to determine a fourth maximum discharge current value according to the second voltage, the minimum operating voltage, the first discharge current value, and the battery internal resistance, the fourth maximum discharge current The value is the second discharge current value.

The control unit is configured to prompt the user that the power is too low when the second discharge current value is less than the preset current value, and determine whether to continue discharging according to the user indication.

The embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the foregoing discharging method.

Embodiments of the present invention provide a discharge method, a terminal device, and a computer storage medium. When a load is detected, a first voltage of a current battery, a minimum operating voltage of the terminal device, and an internal resistance of the battery are acquired; according to the first voltage, Determining, by the minimum operating voltage and the internal resistance of the battery, a first discharge current value, and discharging according to the first discharge current value; acquiring a second voltage of the battery every first preset time; Determining a second discharge current according to the second voltage, the lowest operating voltage, the first discharge current value, and the internal resistance of the battery when a voltage difference between the voltage and the second voltage is greater than a preset voltage value a value; when the second discharge current value satisfies a preset rule, determining whether to continue discharging according to the user indication. According to the discharge method and the terminal device provided by the embodiment of the present invention, when the terminal device detects the load insertion, the initial discharge current is determined according to the current battery voltage, the lowest voltage at which the terminal device can work normally, and the internal resistance of the battery, and when the battery is turned on and discharged. After that, it will not affect the normal operation of other functions of the terminal device itself, and can continuously correct the discharge current during the discharge process to ensure the stability of other functions of the terminal device itself, thereby ensuring the stability of the operation of the terminal device.

DRAWINGS

FIG. 1 is a schematic diagram of a terminal device according to an embodiment of the present disclosure;

2 is a schematic diagram of battery voltage variation according to an embodiment of the present invention;

3 is a schematic flowchart 1 of a discharge method according to an embodiment of the present invention;

4 is a schematic flowchart 2 of a discharge method according to an embodiment of the present invention;

FIG. 5 is a schematic flowchart 3 of a discharge method according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.

Embodiment 1

An embodiment of the present invention provides a discharging method. As shown in FIG. 3, the method includes:

Step 101: When the load is detected, obtain the first voltage of the current battery, the minimum operating voltage of the terminal device itself, and the internal resistance of the battery.

It should be noted that the execution body of the discharge method provided by the embodiment of the present invention is a terminal device. As shown in FIG. 1 , the terminal device is a device that has both a charging function and other functions, wherein the charging function can be understood as discharging. Function, other functions can be understood as: for example, dial-up Internet access, routers, network cards, mobile phones and other modem functions. The modem function included in the terminal device may include a data service, an audio and video service, a communication service, or other keys, a display function, and the like, which are not specifically limited in this embodiment of the present invention.

Specifically, when the terminal device detects that a load is inserted, the first voltage of the current battery, the lowest working voltage of the terminal device, and the internal resistance of the battery are acquired. The minimum operating voltage of the terminal device itself can be understood as the minimum operating voltage required by the terminal device when using the modem function, for example, the minimum operating voltage required for the terminal device to play audio and video.

Wherein, the load refers to the electronic components connected at both ends of the power supply in the circuit. Commonly used loads are components that consume power, such as resistors, engines, and light bulbs. The load for communication power is the communication device. The load in the embodiment of the present invention can be understood as a charged electronic device, such as a mobile phone, a tablet computer, or the like.

Step 102: Determine a first discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery, and perform discharging according to the first discharge current value.

Here, in a possible implementation manner, the terminal device may determine a first maximum discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery; and selecting a pre-stored The maximum value of the current values is a first current value, and when the first current value is less than the first maximum discharge current value, determining that the first current value is the first discharge current value.

The pre-stored current value is a set of current values preset in the charging chip of the terminal device, for example, {30 mV, 35 mV, 40 mV, . . . , In}, and the current value is obtained experimentally.

Exemplarily, the terminal device calculates the first maximum discharge current value Imax1 according to the current battery voltage Vbat1, the lowest voltage Vmin that the terminal device can operate normally, and the battery internal resistance R. The specific calculation method is as follows:

Imax1=(Vbat1-Vmin)/R

A set of current values are preset in the charging chip of the terminal device: {I1, I2, I3, ..., In}, and a current value of Iout1 is selected among a preset set of discharge current values, and when Iout1 is satisfied at the same time: Iout1 When <Imax1, and Iout1=max(I1, I2, I3, ..., In), it is determined that Iout1 is the first discharge current value. Where max(I1, I2, I3, ..., In) takes the maximum value in the set (I1, I2, I3, ..., In). That is, Iout1 is the maximum current value smaller than Imax2 in the set (I1, I2, I3, ..., In).

In another possible implementation, the terminal device may further determine a second maximum discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery, and the second maximum discharge current value is the first A discharge current value.

Exemplarily, the terminal device acquires the first voltage Vbat1 of the current battery, and writes the first voltage Vbat1 of the current battery, the minimum operating voltage Vmin of the terminal device itself, and the internal resistance R of the battery into the discharge chip registers Reg_Vcurrent, Reg_Vmin, Reg_R, respectively, and the discharge chip According to the values of the three registers, the second maximum discharge current value Imax1 is calculated, and the specific calculation method is as follows:

Imax1=(Vbat1-Vmin)/R

Where Imax1 is the first discharge current value.

Wherein, the register is a high-speed storage component of limited storage capacity, which can be used to temporarily store instructions, Data and address.

Specifically, after the terminal device determines the first discharge current value, the discharge switch is turned on to start external discharge, that is, the terminal device charges the load.

Step 103: Acquire a second voltage of the battery every first preset time.

Specifically, the terminal device acquires the second voltage of the battery every first preset time, where the first preset time may be 1 second, 2 seconds, or other values, and the first preset time is less than the discharge time of the terminal device. .

Illustratively, the terminal device detects the voltage of the battery once a second, which is the second voltage of the battery.

Wherein, when the voltage difference between the first voltage and the second voltage is less than or equal to the preset voltage value, step 103 is continued.

Step 104: When the voltage difference between the first voltage and the second voltage is greater than a preset voltage value, according to the second voltage, the minimum operating voltage, the first discharge current value, and the battery The internal resistance determines the second discharge current value.

Specifically, the terminal device compares the second voltage of the battery and the first voltage after the first preset time, and when the voltage difference between the first voltage and the second voltage is greater than a preset voltage value, the terminal device needs to be re- The discharge current is determined, and then the terminal device discharges by redetermining the discharge current, that is, the second discharge current value.

In a possible implementation manner, the terminal device determines a third maximum discharge current value according to the second voltage, the minimum operating voltage, the first discharge current value, and the battery internal resistance. Secondly, selecting a maximum of the pre-stored current values as a second current value, and when the second current value is less than the third maximum discharge current value, the second current value is the second discharge current value.

The preset voltage value is preferably 200 mV, and may be a value between 100 mV and 250 mV, and may be other values, which is not limited in the embodiment of the present invention.

Exemplarily, the terminal device determines the voltage that the second voltage Vbat2 is lower than the first voltage Vbat1. The value, when the voltage value of the drop is greater than 200 mV, the third maximum discharge current value Imax2 is calculated according to the second voltage Vbat2, the lowest operating voltage Vmin, the battery internal resistance R, and the first discharge current value Iout1, and the specific calculation method is as follows:

Imax2=(Vbat2-Vmin)/R+Iout1

Exemplarily, a set of current values are preset in the charging chip of the terminal device: {I1, I2, I3, ..., In}, and a current value of Iout2 is selected among a preset set of discharge current values, when Iout2 At the same time, it satisfies: Iout2<Imax2, and Iout2=max(I1, I2, I3, ..., In), where max(I1, I2, I3, ..., In) is in the set (I1, I2, I3,... The maximum value is taken in ..., In), that is, Iout2 is the maximum current value smaller than Imax2 in the set (I1, I2, I3, ..., In).

In another possible implementation manner, the terminal device determines a fourth maximum discharge current value according to the second voltage, the minimum operating voltage, the first discharge current value, and the battery internal resistance, and the fourth maximum discharge The current value is the second discharge current value.

Exemplarily, the terminal device determines a voltage value of the second voltage Vbat2 that is lower than the first voltage Vbat1. When the decreased voltage value is greater than 200mV, the current second voltage Vbat2 is written into the register Reg_Vcurrent, according to the second voltage Vbat2, the lowest value. The working voltage Vmin, the internal resistance R of the battery, and the first discharge current value Iout1 calculate the fourth maximum discharge current value Imax2, and the specific calculation method is as follows:

Imax2=(Vbat2-Vmin)/R+Iout1

Wherein Imax2 is the second discharge current value Iout2.

Step 105: When the second discharge current value satisfies a preset rule, determine whether to continue discharging according to a user instruction.

The preset rule may be to compare the second discharge current value with a minimum value of the pre-stored current value or a preset current value, when the second discharge current value is less than or equal to the pre-stored current The minimum value of the value, or when the second discharge current value is less than the preset current value, is to satisfy the preset rule.

In a possible implementation manner, when the second discharge current value is less than or equal to the pre-storage When the current value is the minimum value, the user is prompted to be too low, and according to the user indication, it is determined whether to continue discharging.

Illustratively, the second discharge current value Iout2 <=min(I1, I2, I3, ..., In), where min(I1, I2, I3, ..., In) is in the set (I1, I2, I3) , ..., In) takes the minimum value, prompts the user, the battery is low, and stops charging; if the user chooses to select "Yes", the terminal device turns off the discharging function, that is, stops charging the load; if the user selects " No, the terminal device keeps the discharge current value unchanged, and reminds the user to save the resources and data of other current functional modules of the terminal device, and prepares to close other functional modules of the terminal device at any time.

In another possible implementation manner, when the second discharge current value is less than the preset current value, the user is prompted to be too low, and determining whether to continue discharging according to the user indication.

Exemplarily, the second discharge current value Iout2 is smaller than the discharge chip preset current value Imin, prompting the user that the battery power is low, and whether the charging function is stopped; if the user selects “Yes”, the terminal device turns off the discharging function, that is, stops the load. Charging function; if the user selects “No”, the terminal device keeps the discharge current value unchanged, and reminds the user to save the resources and data of other current functional modules of the terminal device, and prepares to close other functional modules of the terminal device at any time.

The preset current value is a minimum current value required for charging according to experience and experiment, and the preset current value may range from 40 mA to 60 mA.

In one embodiment, when the second discharge current value does not satisfy the preset rule, step 103 is performed.

Specifically, when the second discharge current value is greater than a minimum value of the pre-stored current value, or when the second discharge current value is greater than or equal to a preset current value, the preset rule is not satisfied, and needs to be performed. Step 103.

According to the discharge method provided by the embodiment of the present invention, after the terminal device detects the load insertion, the initial discharge current is determined according to the current battery voltage, the lowest voltage at which the terminal device can operate normally, and the internal resistance of the battery. Affect other functions of the terminal device itself The normal operation, and can continuously correct the discharge current during the discharge process to ensure the stability of other functions of the terminal device itself, thereby ensuring the stability of the operation of the terminal device.

Embodiment 2

An embodiment of the present invention provides a discharging method. As shown in FIG. 4, the method includes:

Step 201: When the load is detected, obtain the first voltage of the current battery, the minimum working voltage of the terminal device itself, and the internal resistance of the battery.

The load in the embodiment of the present invention can be understood as a charged electronic device, such as a mobile phone, a tablet computer, or the like.

Step 202: Determine a first maximum discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery.

Imax1=(Vbat1-Vmin)/R

Step 203: Select a maximum value of the pre-stored current values as the first current value, when the first power When the flow value is less than the first maximum discharge current value, determining that the first current value is the first discharge current value.

Exemplarily, a set of current values are preset in the charging chip of the terminal device: {I1, I2, I3, ..., In}, and a current value of Iout1 is selected among a preset set of discharge current values, when Iout1 While satisfying: Iout1 < Imax1, and Iout1 = max (I1, I2, I3, ..., In), it is determined that Iout1 is the first discharge current value. Where max(I1, I2, I3, ..., In) takes the maximum value in the set (I1, I2, I3, ..., In).

Step 204: Perform discharging according to the first discharge current value.

Step 205: Acquire a second voltage of the battery every first preset time.

Wherein, when the voltage difference between the first voltage and the second voltage is less than or equal to the preset voltage value, step 205 is continued.

Step 206, when the voltage difference between the first voltage and the second voltage is greater than a preset voltage value, according to the second voltage, the minimum operating voltage, the first discharge current value, and the battery The internal resistance determines the third maximum discharge current value.

Specifically, the terminal device performs the second voltage and the first voltage of the battery after the first preset time The comparison judges that when the voltage difference between the first voltage and the second voltage is greater than a preset voltage value, it is necessary to re-determine the discharge current. First, the terminal device determines a third maximum discharge current value according to the second voltage, the minimum operating voltage, the first discharge current value, and the battery internal resistance.

Exemplarily, the terminal device determines a voltage value of the second voltage Vbat2 that is lower than the first voltage Vbat1, and when the decreased voltage value is greater than 200mV, according to the second voltage Vbat2, the minimum operating voltage Vmin, the battery internal resistance R, and the first discharge The current value Iout1 calculates the third maximum discharge current value Imax2, and the specific calculation method is as follows:

Imax2=(Vbat2-Vmin)/R+Iout1

Step 207: Select a maximum value of the pre-stored current values as a second current value, and when the second current value is less than the third maximum discharge current value, the second current value is the second discharge Current value.

Specifically, after the terminal device determines the second discharge current value, discharging is performed at the second discharge current value.

Wherein, when the second discharge current value is greater than a minimum value of the pre-stored current values, step 205 is performed.

Specifically, when the second discharge current value is greater than a minimum value of the pre-stored current value, it may be understood that discharging the terminal device with the second discharge current value does not affect the operation of other functional modules of the terminal device. Can continue to discharge with the second discharge current value, and perform steps 205, that is, acquiring a second voltage of the battery every first preset time.

Step 208: When the second discharge current value is less than or equal to a minimum value of the pre-stored current values, prompting the user that the power is too low, and determining whether to continue discharging according to the user indication.

Illustratively, when the second discharge current value Iout2 <= min (I1, I2, I3, ..., In), where min(I1, I2, I3, ..., In) is in the set (I1, I2, The minimum value is taken in I3, ..., In), prompting the user that the battery is low and whether to stop the charging function. If the user selects "Yes", the terminal device turns off the discharging function, that is, stops the charging function of the load; if the user selects "No", the terminal device keeps the discharge current value unchanged, and reminds the user to save the current other functional modules of the terminal device. Resources, data, and ready to shut down other functional modules of the terminal device at any time.

In addition, if the user pulls out the load during the charging process, that is, the device is charged, the terminal device turns off the discharging function.

Specifically, the voltage variation in the discharge method provided by the embodiment of the present invention is described. As shown in FIG. 2, the solid line indicates the change of the battery voltage during the discharge process of the terminal device with the discharge function in the prior art, and the broken line indicates the present invention. The variation of the battery voltage during discharge of the terminal device with a discharge function provided by the embodiment. At the point A, the battery full-charge voltage is Vfull, and the battery power is continuously consumed during the discharge process. It is assumed that when the battery voltage is Vin, that is, the load is inserted at point B, the terminal device is externally discharged, that is, the terminal device is charged in the embodiment of the present invention. / discharge function, at this time, due to the internal resistance and discharge current of the battery itself, the battery voltage will be pulled down instantaneously; in the prior art, the battery voltage is pulled to point D, if the point D is lower than other functional modules of the terminal device The minimum operating voltage Vmin causes the other functional modules of the terminal device to stop working, and the modem services such as the data service, the audio and video, and the communication service are not saved and processed, and are lost as shown in FIG. 1. The discharging method provided by the embodiment of the present invention can Ensure that the battery voltage is pulled above Vmin, that is, point C. Then, as the discharge process continues, the battery power continues to decrease. When the battery voltage is close to Vmin, other functional modules of the terminal device have sufficient time to process unsaved data in the embodiment of the present invention. And prompt the user whether to continue to discharge, thereby improving the stability of the operation of the terminal device.

According to the discharge method provided by the embodiment of the present invention, after the terminal device detects the load insertion, the initial discharge current is determined according to the current battery voltage, the lowest voltage at which the terminal device can operate normally, and the internal resistance of the battery. It affects the normal operation of other functions of the terminal device itself, and can continuously correct the discharge current during the discharge process to ensure the stability of other functions of the terminal device itself, thereby ensuring the stability of the operation of the terminal device.

Embodiment 3

The embodiment of the invention provides a discharging method. As shown in FIG. 5, the method includes:

Step 301: When the load is detected, obtain the first voltage of the current battery, the minimum operating voltage of the terminal device itself, and the internal resistance of the battery.

It should be noted that the execution body of the discharge method provided by the embodiment of the present invention is a terminal device. As shown in FIG. 1 , the terminal device may be a device that has both a charging function and other functions, wherein the charging function can be understood as Discharge function, other functions can be understood as: for example, dial-up Internet access, routers, network cards, mobile phones and other modem functions. The modem function included in the terminal device may include a data service, an audio and video service, a communication service, or other keys, a display function, and the like, which are not specifically limited in this embodiment of the present invention.

Step 302: Determine a second maximum discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery, and the second maximum discharge current value is a first discharge current value.

Exemplarily, the terminal device acquires the first voltage Vbat1 of the current battery, and writes the current battery voltage Vbat1, the terminal device's own minimum operating voltage Vmin, and the battery internal resistance R to the discharge chip. The registers Reg_Vcurrent, Reg_Vmin, Reg_R, the discharge chip calculates the second maximum discharge current value Imax1 according to the values of the three registers, and the specific calculation method is as follows:

Imax1=(Vbat1-Vmin)/R

Where Imax1 is the first discharge current value.

Step 303: Perform discharging according to the first discharge current value.

Step 304: Acquire a second voltage of the battery after the first preset time.

Wherein, when the voltage difference between the first voltage and the second voltage is less than or equal to the preset voltage value, step 304 is continued.

Step 305, when the voltage difference between the first voltage and the second voltage is greater than a preset voltage value, according to the second voltage, the minimum operating voltage, the first discharge current value, and the battery The internal resistance determines a fourth maximum discharge current value, and the fourth maximum discharge current value is the second discharge current value.

Specifically, the terminal device compares the second voltage of the battery and the first voltage after the first preset time, and when the voltage difference between the first voltage and the second voltage is greater than a preset voltage value, the terminal device needs to be re- Determine the discharge current. The terminal device determines a fourth maximum discharge current value according to the second voltage, the minimum operating voltage, the first discharge current value, and the battery internal resistance, and the fourth maximum discharge current value is the second discharge The current value is determined by the terminal device after determining the second discharge current value.

Exemplarily, the terminal device determines a voltage value of the second voltage Vbat2 that is lower than the first voltage Vbat1. When the falling voltage value is greater than 200mV, the current voltage Vbat2 is written into the register Reg_Vcurrent according to the second voltage Vbat2 and the minimum operating voltage. Vmin, battery internal resistance R, first discharge current value Iout1 calculate the fourth maximum discharge current value Imax2, the specific calculation method is as follows:

Imax2=(Vbat2-Vmin)/R+Iout1

Wherein Imax2 is the second discharge current value Iout2.

Wherein, when the second discharge current value is greater than or equal to the preset current value, step 304 is performed.

Specifically, when the second discharge current value is greater than or equal to the preset current value, it can be understood that discharging the terminal device with the second discharge current value does not affect the operation of other functional modules of the terminal device, and may continue to The second discharge current value is discharged, and step 304 is performed, that is, the second voltage of the battery is acquired every first preset time.

Step 306: When the second discharge current value is less than the preset current value, prompting the user that the power is too low, and determining whether to continue discharging according to the user indication.

Specifically, the voltage variation in the discharge method provided by the embodiment of the present invention is described. As shown in FIG. 2, the solid line indicates the change of the battery voltage during the discharge process of the terminal device with the discharge function in the prior art, and the broken line indicates the present invention. The terminal device with discharge function provided by the embodiment discharges The change in battery voltage during the process. At the point A, the battery full-charge voltage is Vfull, and the battery power is continuously consumed during the discharge process. It is assumed that when the battery voltage is Vin, that is, the load is inserted at point B, the terminal device is externally discharged, that is, the terminal device is charged in the embodiment of the present invention. / discharge function, at this time, due to the internal resistance and discharge current of the battery itself, the battery voltage will be pulled down instantaneously; in the prior art, the battery voltage is pulled to point D, if the point D is lower than other functional modules of the terminal device The minimum operating voltage Vmin causes the other functional modules of the terminal device to stop working, and the modem services such as the data service, the audio and video, and the communication service are not saved and processed, and are lost as shown in FIG. 1. The discharging method provided by the embodiment of the present invention can Ensure that the battery voltage is pulled above Vmin, that is, point C. Then, as the discharge process continues, the battery power continues to decrease. When the battery voltage is close to Vmin, other functional modules of the terminal device have sufficient time to process unsaved data in the embodiment of the present invention. And prompt the user whether to continue to discharge, thereby improving the stability of the operation of the terminal device.

Embodiment 4

The embodiment of the present invention provides a terminal device 1. As shown in FIG. 6, the terminal device 1 includes: a control unit 10, and a charging and discharging unit 11;

The control unit 10 is configured to acquire a first voltage of the current battery, a minimum operating voltage of the battery, and an internal resistance of the battery when the load is detected; and configured to determine, according to the first voltage, the minimum operating voltage, and the battery The internal resistance determines a first discharge current value; and is further configured to acquire a second voltage of the battery every first preset time; when the voltage difference between the first voltage and the second voltage When the value is greater than the preset voltage value, determining a second discharge current value according to the second voltage, the minimum operating voltage, the first discharge current value, and the internal resistance of the battery; further configured to be when the second discharge When the current value satisfies the preset rule, it is determined according to the user's instruction whether to continue discharging.

The charge and discharge unit 11 is configured to discharge according to the first discharge current value.

In one embodiment, the control unit 10 is configured to determine a first maximum discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery; and further configured to select a pre-stored current value The maximum value is a first current value, and when the first current value is less than the first maximum discharge current value, determining that the first current value is the first discharge current value.

In one embodiment, the control unit 10 is configured to determine a second maximum discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery, and the second maximum discharge current value is The first discharge current value is described.

In an embodiment, the control unit 10 is configured to determine a third maximum discharge current value according to the second voltage, the minimum operating voltage, the first discharge current value, and the battery internal resistance; In order to select the maximum value of the pre-stored current values as the second current value, when the second current value is less than the third maximum discharge current value, the second current value is the second discharge current value .

In an embodiment, the control unit 10 is configured to prompt the user to be too low when the second discharge current value is less than or equal to a minimum value of the pre-stored current value, and determine whether the user is instructed according to the user indication. Continue to discharge.

In one embodiment, the control unit 10 is configured to determine a fourth maximum discharge current value according to the second voltage, the minimum operating voltage, the first discharge current value, and the battery internal resistance, The fourth maximum discharge current value is the second discharge current value.

In an embodiment, the control unit 10 is configured to prompt the user to be too low when the second discharge current value is less than the preset current value, and determine whether to continue discharging according to the user indication.

Here, the charge and discharge unit 11 is configured to charge and discharge the battery, monitor the charge and discharge state, and the like, and can be specifically implemented by a discharge circuit or a discharge chip in combination with software programming. The control unit is an added module of the invention, configured to assist the charging and discharging unit to control charging and discharging, to ensure more accurate control of discharge, and to maintain normal and stable operation of the basic function module, which can be realized by software programming or by software algorithm. Into the register, the register is integrated with the discharge chip to achieve.

In practical applications, the control unit 10 and the charge and discharge unit 11 may be a central processing unit (CPU), a microprocessor (MPU), a digital signal processor (DSP), or a field programmable gate array located on the terminal device ( FPGA) and other implementations.

For the understanding of the terminal device provided by the embodiment of the present invention, reference may be made to the description of the discharge method of the first embodiment to the third embodiment, and details are not described herein again.

The terminal device provided by the embodiment of the present invention determines the initial discharge current according to the current battery voltage, the lowest voltage at which the terminal device can operate normally, and the internal resistance of the battery after the terminal device detects the load insertion. It affects the normal operation of other functions of the terminal device itself, and can continuously correct the discharge current during the discharge process to ensure the stability of other functions of the terminal device itself, thereby ensuring the stability of the operation of the terminal device.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a general purpose computer, a special purpose computer, An processor of an embedded processor or other programmable data processing device to generate a machine such that instructions executed by a processor of a computer or other programmable data processing device are generated for implementation in a flow or a flow of flowcharts and/or Or a block diagram of a device in a box or a function specified in a plurality of boxes.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Industrial applicability

In the discharge method, the terminal device and the computer storage medium provided by the embodiments of the present invention, after the terminal device detects the load insertion, the initial discharge current is determined according to the current battery voltage, the lowest voltage at which the terminal device can operate normally, and the internal resistance of the battery. When the battery is turned on and discharged, it will not affect the normal operation of other functions of the terminal device itself, and can continuously correct the discharge current during the discharge process to ensure the stability of other functions of the terminal device itself, thereby ensuring stable operation of the terminal device. Sex.

Claims

A discharge method, the method comprising:

When the load is detected, obtaining the first voltage of the current battery, the minimum operating voltage of the terminal device itself, and the internal resistance of the battery;

Determining a first discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery, and discharging according to the first discharge current value;

Acquiring a second voltage of the battery every first preset time;

Determining, according to the second voltage, the minimum operating voltage, the first discharging current value, and the internal resistance of the battery, when a voltage difference between the first voltage and the second voltage is greater than a preset voltage value Second discharge current value;

When the second discharge current value satisfies a preset rule, it is determined according to a user instruction whether to continue discharging.
The discharge method according to claim 1, wherein the determining the first discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery comprises:

Determining a first maximum discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery;

The maximum value of the pre-stored current values is selected as a first current value, and when the first current value is less than the first maximum discharge current value, determining that the first current value is the first discharge current value.
The discharge method according to claim 1, wherein the determining the first discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery comprises:

Determining a second maximum discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery, the second maximum discharge current value being the first discharge current value.
The discharge method according to claim 2, wherein said determining said second discharge electric power according to said second voltage, said minimum operating voltage, said first discharge current value, and said battery internal resistance Stream values, including:

Determining a third maximum discharge current value according to the second voltage, the minimum operating voltage, the first discharge current value, and the internal resistance of the battery;

The maximum value of the pre-stored current values is selected as a second current value, and when the second current value is less than the third maximum discharge current value, the second current value is the second discharge current value.
The discharging method according to claim 4, wherein, when the second discharge current value satisfies a preset rule, determining whether to continue discharging according to a user instruction comprises:

When the second discharge current value is less than or equal to a minimum value of the pre-stored current values, the user is prompted to be under-powered, and determining whether to continue discharging according to the user indication.
The discharge method according to claim 1 or 3, wherein said determining a second discharge current value based on said second voltage, said minimum operating voltage, said first discharge current value, and said battery internal resistance, including :

Determining a fourth maximum discharge current value according to the second voltage, the minimum operating voltage, the first discharge current value, and the battery internal resistance, and the fourth maximum discharge current value is the second discharge current value .
The discharging method according to claim 6, wherein when the second discharge current value satisfies a preset rule, determining whether to continue discharging according to a user instruction comprises:

When the second discharge current value is less than the preset current value, the user is prompted to be under-powered, and determining whether to continue discharging according to the user indication.
A terminal device, comprising: a charging and discharging unit, a control unit; wherein

The control unit is configured to acquire a first voltage of the current battery, a minimum operating voltage of the terminal device, and a battery internal resistance when the load is detected, and configured to be according to the first voltage, the minimum operating voltage, and the The internal resistance of the battery determines a first discharge current value; and is further configured to acquire a second voltage of the battery every first preset time; when a voltage difference between the first voltage and the second voltage is greater than a preset voltage value According to the second voltage, the minimum operating voltage, The first discharge current value and the internal resistance of the battery determine a second discharge current value; and is further configured to determine whether to continue discharging according to a user indication when the second discharge current value satisfies a preset rule;

The charge and discharge unit is configured to discharge according to the first discharge current value.
The terminal device according to claim 8, wherein the control unit is configured to determine a first maximum discharge current value according to the first voltage, the minimum operating voltage, and the internal resistance of the battery; The maximum value of the stored current values is a first current value, and when the first current value is less than the first maximum discharge current value, determining that the first current value is the first discharge current value.
The terminal device according to claim 8, wherein the control unit is configured to determine a second maximum discharge current value according to the first voltage, the minimum operating voltage, and the battery internal resistance, the second maximum The discharge current value is the first discharge current value.
The terminal device according to claim 9, wherein the control unit is configured to determine a third maximum discharge according to the second voltage, the minimum operating voltage, the first discharge current value, and the battery internal resistance a current value; configured to select a maximum of the pre-stored current values as a second current value, and when the second current value is less than the third maximum discharge current value, the second current value is The second discharge current value.
The terminal device according to claim 11, wherein the control unit is configured to prompt the user that the power is too low when the second discharge current value is less than or equal to a minimum value of the pre-stored current value, and according to the The user indicates to determine whether to continue discharging.
The terminal device according to claim 8 or 10, wherein the control unit is configured to determine a fourth according to the second voltage, the minimum operating voltage, the first discharge current value, and the battery internal resistance a maximum discharge current value, the fourth maximum discharge current value being the second discharge current value.
The terminal device according to claim 13, wherein the control unit is configured to prompt the user that the power is too low when the second discharge current value is less than the preset current value, and according to the The user indicates to determine whether to continue discharging.
A computer storage medium having stored therein computer executable instructions for performing the discharge method of any one of claims 1 to 7.