CN116365616A

CN116365616A - Shutdown voltage adjustment method, device, equipment and storage medium

Info

Publication number: CN116365616A
Application number: CN202111616436.XA
Authority: CN
Inventors: 任行; 李冰洋
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2023-06-30

Abstract

The disclosure relates to a shutdown voltage adjustment method, a shutdown voltage adjustment device, shutdown voltage adjustment equipment and a storage medium, wherein the shutdown voltage adjustment method comprises the following steps: acquiring working information of terminal equipment in the working process of the terminal equipment; determining a target shutdown voltage of the terminal equipment based on the working information; and adjusting the shutdown voltage of the terminal equipment to the target shutdown voltage. The method and the device can dynamically adjust the target shutdown voltage of the terminal equipment based on the working information acquired by the terminal equipment in the working process, so that the rationality of subsequently adjusting the shutdown voltage of the terminal equipment can be improved, compared with the scheme of directly setting the shutdown voltage in the related art, the unexpected shutdown problem caused by the fact that the terminal equipment reaches the shutdown voltage in advance in a low-temperature environment and a high-load environment can be effectively avoided, and the use experience of a user can be improved.

Description

Shutdown voltage adjustment method, device, equipment and storage medium

Technical Field

The disclosure relates to the technical field of mobile terminals, and in particular relates to a shutdown voltage adjustment method, a shutdown voltage adjustment device, shutdown voltage adjustment equipment and a storage medium.

Background

With the rapid development of internet technology, mobile terminals such as smart phones and the like play an increasing role in daily life of people. In the related art, the shutdown voltage of the smart phone is usually set directly, and then the smart phone triggers a shutdown condition when the battery voltage reaches the set shutdown voltage to perform shutdown. However, the above scheme of directly setting the shutdown voltage of the smart phone easily causes the smart phone to reach the shutdown voltage in advance, so that the smart phone is turned off accidentally, and thus the user experience is affected.

Disclosure of Invention

In order to overcome the problems in the related art, embodiments of the present disclosure provide a shutdown voltage adjustment method, apparatus, device, and storage medium, which are used to solve the drawbacks in the related art.

According to a first aspect of embodiments of the present disclosure, there is provided a shutdown voltage adjustment method, the method including:

acquiring working information of terminal equipment in the working process of the terminal equipment;

determining a target shutdown voltage of the terminal equipment based on the working information;

and adjusting the shutdown voltage of the terminal equipment to the target shutdown voltage.

In an embodiment, the working information includes at least one of:

battery temperature, operating current, operating load, and battery charge-discharge cycle parameters.

In an embodiment, the working information includes: a battery temperature;

the determining the target shutdown voltage of the terminal device based on the working information includes:

if the current battery temperature of the terminal equipment is higher than a first preset threshold value, determining a first shutdown voltage value as a target shutdown voltage of the terminal equipment;

if the current battery temperature of the terminal equipment is lower than or equal to the first preset threshold value, determining a second shutdown voltage value as a target shutdown voltage of the terminal equipment; wherein the second shutdown voltage value is less than the first shutdown voltage value.

In an embodiment, the working information includes: operating current and operating load;

determining a voltage margin from the operating current and the operating load;

and determining the target shutdown voltage of the terminal equipment according to the working current, the working load and the voltage allowance.

In an embodiment, the determining the target shutdown voltage of the terminal device according to the working current, the working load and the voltage margin includes:

determining a product of the operating current and the operating load;

calculating the difference value of the current shutdown voltage value and the product;

and determining the sum of the difference value and the voltage allowance as a target shutdown voltage of the terminal equipment.

In an embodiment, the voltage margin is determined based on:

if the product of the working current and the working load is larger than a second preset threshold value, determining the voltage margin as a first set value;

and if the product of the working current and the working load is smaller than or equal to the second preset threshold value, determining the voltage margin as a second set value, wherein the second set value is smaller than the first set value.

In an embodiment, the method further comprises determining the current shutdown voltage value based on:

if the current battery temperature of the terminal equipment is higher than a first preset threshold value, taking the first shutdown voltage value as the current shutdown voltage value;

if the current battery temperature of the terminal equipment is lower than or equal to a first preset threshold value, taking the second shutdown voltage value as the current shutdown voltage value; wherein the second shutdown voltage value is less than the first shutdown voltage value.

In an embodiment, before the step of determining the product of the operating current and the workload, the method further comprises:

acquiring the current charge-discharge cycle times of a battery of the terminal equipment;

and determining the workload corresponding to the current charge-discharge cycle times based on the corresponding relation between the preset charge-discharge cycle times and the workload.

According to a second aspect of embodiments of the present disclosure, there is provided a shutdown voltage adjustment device, the device including:

the acquisition module is used for acquiring the working information of the terminal equipment in the working process of the terminal equipment;

a determining module, configured to determine a target shutdown voltage of the terminal device based on the working information;

And the adjusting module is used for adjusting the shutdown voltage of the terminal equipment to the target shutdown voltage.

In an embodiment, the working information includes at least one of:

In an embodiment, the working information includes: a battery temperature;

the determining module comprises a first determining unit;

the first determining unit is configured to:

when the current battery temperature of the terminal equipment is higher than a first preset threshold value, determining a first shutdown voltage value as a target shutdown voltage of the terminal equipment;

when the current battery temperature of the terminal equipment is lower than or equal to the first preset threshold value, determining a second shutdown voltage value as a target shutdown voltage of the terminal equipment; wherein the second shutdown voltage value is less than the first shutdown voltage value.

In one embodiment, the operating information includes operating current and operating load;

the determining module comprises a second determining unit;

the second determining unit is configured to:

determining a voltage margin from the operating current and the operating load;

In an embodiment, the second determining unit is further configured to:

determining a product of the operating current and the operating load;

In an embodiment, the second determining unit is further configured to:

determining the voltage margin as a first set value when the product of the working current and the working load is greater than a second preset threshold value;

and when the product of the working current and the working load is smaller than or equal to the second preset threshold value, determining the voltage margin as a second set value, wherein the second set value is smaller than the first set value.

In an embodiment, the determining module further includes a current shutdown voltage value determining unit;

the current shutdown voltage value determining unit is configured to determine the current shutdown voltage value based on:

In an embodiment, the acquisition module comprises a workload determination unit;

the workload determination unit is configured to:

According to a third aspect of embodiments of the present disclosure, there is provided an electronic device, the device comprising:

a processor and a memory for storing a computer program;

wherein the processor is configured to implement, when executing the computer program:

According to a fourth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements:

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

according to the method and the device, the working information of the terminal equipment is acquired in the working process of the terminal equipment, the target shutdown voltage of the terminal equipment is determined based on the working information, and then the shutdown voltage of the terminal equipment is adjusted to be the target shutdown voltage, so that the target shutdown voltage of the terminal equipment can be dynamically adjusted based on the working information acquired by the terminal equipment in the working process, the rationality of the shutdown voltage of the terminal equipment can be improved, compared with the scheme of directly setting the shutdown voltage in the related technology, the unexpected shutdown problem caused by the fact that the terminal equipment reaches the shutdown voltage in advance in a low-temperature environment and a high-load scene can be effectively avoided, and the use experience of a user can be improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a flowchart illustrating a shutdown voltage adjustment method according to an exemplary embodiment of the present disclosure;

FIG. 2 is a flowchart illustrating yet another shutdown voltage adjustment method according to an exemplary embodiment of the present disclosure;

FIG. 3 is a flowchart illustrating how a target shutdown voltage of the terminal device is determined based on the operational information, according to an exemplary embodiment of the present disclosure;

FIG. 4 is a flow chart illustrating how a target shutdown voltage of the terminal device is determined based on the operating current, the operating load, and the voltage margin, according to yet another exemplary embodiment of the present disclosure;

FIG. 5 is a flow chart illustrating how to determine a voltage margin from the operating current and the operating load according to an exemplary embodiment of the present disclosure;

FIG. 6 is a flowchart illustrating how to determine the current shutdown voltage value, according to an exemplary embodiment of the disclosure;

FIG. 7 is a flowchart illustrating how to obtain the operational information of the terminal device according to an exemplary embodiment of the present disclosure;

FIG. 8 is a block diagram of a shutdown voltage regulating device, according to an exemplary embodiment of the present disclosure;

FIG. 9 is a block diagram of yet another shutdown voltage regulating device, shown in accordance with an exemplary embodiment of the present disclosure;

Fig. 10 is a block diagram of an electronic device, according to an exemplary embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

With the rapid development of internet technology, mobile terminals such as smart phones and the like play an increasing role in daily life of people. In the related art, the shutdown voltage of the smart phone is usually set directly. For example, the shutdown voltage of a single-cell smart phone is typically set to 3.4V, the shutdown voltage of a dual-cell smart phone is typically set to 6.8V, etc. Further, the smart phone may trigger a shutdown condition when the battery voltage reaches a set shutdown voltage.

However, because the battery has special physical and chemical characteristics, the smart phone can reach the shutdown voltage in advance under a low-temperature environment or with a large load current, so that the mobile phone is turned off accidentally, and the use experience of a user is further affected. In view of the above, the embodiments of the present disclosure provide the following shutdown voltage adjustment method, device, apparatus and storage medium, which are used to solve the above-mentioned drawbacks in the related art.

FIG. 1 is a flowchart illustrating a shutdown voltage adjustment method, according to an example embodiment; the execution subject of the method of the embodiment may be a terminal device (e.g., a smart phone, a tablet computer, or a wearable device) or a server.

As shown in fig. 1, the method includes the following steps S101-S103:

in step S101, during the operation of a terminal device, operation information of the terminal device is obtained.

In this embodiment, the terminal device or the server obtains the working information of the terminal device in the working process, where the working information at least includes information such as a working parameter and/or a battery parameter in the working process of the terminal device. Wherein the operating parameters comprise at least the operating load and/or the operating current of the terminal device and the battery parameters comprise at least the battery temperature and/or the battery charge-discharge cycle parameters. It is to be understood that the present embodiment is not limited herein, and may be based on information actually required to be set to affect the battery voltage of the terminal device, such as at least one of the battery temperature, the operating current, the operating load (e.g., the direct current impedance RDC, etc.), and the battery charge-discharge cycle parameter of the terminal device.

In step S102, a target shutdown voltage of the terminal device is determined based on the operation information.

In this embodiment, after the working information of the terminal device is obtained during the working process of the terminal device, the terminal device or the server may determine a target shutdown voltage of the terminal device based on the working information, where the target shutdown voltage is related to a working parameter and/or a battery parameter in the working information.

In this way, the target shutdown voltage of the terminal equipment is dynamically adjusted through the working parameters and/or the battery parameters in the working information, so that the rationality of determining the target shutdown voltage of the terminal equipment can be improved to a certain extent, and the rationality of subsequently adjusting the shutdown voltage of the terminal equipment can be improved, and the problem that the terminal equipment can reach the shutdown voltage in advance under a low-temperature environment or a high-load scene due to the fact that the shutdown voltage is directly set in the related technology can be improved.

In another embodiment, the above manner of determining the target shutdown voltage of the terminal device based on the operation information may also refer to the embodiments shown in fig. 2 or fig. 3, which are not described in detail herein.

As can be seen from the foregoing description, in the method of this embodiment, by acquiring the working information of the terminal device during the working process of the terminal device, and determining the target shutdown voltage of the terminal device based on the working information, and further adjusting the shutdown voltage of the terminal device to the target shutdown voltage, the target shutdown voltage of the terminal device can be dynamically adjusted based on the working information acquired by the terminal device during the working process, so that the rationality of adjusting the shutdown voltage of the terminal device in the following process can be improved.

FIG. 2 is a flowchart illustrating yet another shutdown voltage adjustment method according to an exemplary embodiment of the present disclosure; the execution subject of the method of the embodiment may be a terminal device (such as a smart phone, a tablet computer, or a wearable device) or a server. In this embodiment, the working information includes: battery temperature of the terminal device. Specifically, as shown in fig. 2, the method includes the following steps S201 to S204:

in step S201, during operation of the terminal device, a battery temperature of the terminal device is obtained.

In step S202, it is determined whether the battery temperature is higher than a first preset threshold: if yes, go to step S203; if not, step S204 is performed.

In step S203, the first shutdown voltage value is determined as a target shutdown voltage of the terminal device.

In step S204, a second shutdown voltage value is determined as a target shutdown voltage of the terminal device.

In this embodiment, the terminal device or the server obtains the battery temperature of the terminal device in the current working process, compares the obtained battery temperature with a first preset threshold value, and dynamically adjusts the shutdown voltage of the terminal device according to the comparison result. In the process of acquiring the battery temperature, the battery temperature may be acquired in an irregular or periodic manner or the like. The first preset threshold may be set based on actual needs, for example, set to 10 ℃, which is not limited in this embodiment. It should be noted that, in the above embodiments, the target shutdown voltage may be dynamically adjusted in a scene of too low or too high battery temperature, so as to set different shutdown voltages in different scenes.

And when the battery temperature is higher than the first preset threshold value, the first shutdown voltage value can be determined as the target shutdown voltage of the terminal equipment. The first shutdown voltage value may be a default shutdown voltage value in the related art, for example, a shutdown voltage of 3.4V set in a terminal device with a single cell or a shutdown voltage of 6.8V set in a terminal device with a dual cell in the related art. That is, when it is detected that the battery temperature is higher than the first preset threshold, the target shutdown voltage of the terminal device of the single cell may still be maintained at the default 3.4V, and the target shutdown voltage of the terminal device of the dual cell may still be maintained at the default 6.8V.

And when the battery temperature is lower than or equal to the first preset threshold value, the second shutdown voltage value can be determined as the target shutdown voltage of the terminal equipment. The second shutdown voltage value is smaller than the default first shutdown voltage value. The target shutdown voltage is related to the number of cells in addition to the battery temperature. Wherein the greater the number of cells of the battery, the greater the target shutdown voltage. For example, the default shutdown voltage of the single-cell terminal device is 3.4V, and the second shutdown voltage value may be set to 3.2V correspondingly; that is, when it is detected that the battery temperature is lower than or equal to the first preset threshold, the target shutdown voltage of the terminal device of the single cell may be adjusted down from 3.4V to 3.2V by default. For another example, the default shutdown voltage of the dual-cell terminal device is 6.8V, and the second shutdown voltage value may be set to 6.4V correspondingly. That is, when it is detected that the battery temperature is lower than or equal to the first preset threshold, the target shutdown voltage of the dual-cell terminal device is adjusted down from the default 6.8V to 6.4V.

It should be noted that, the first shutdown voltage value and the second shutdown voltage value are related to the number of the battery cells and the battery temperature, and the range of the first shutdown voltage value and the second shutdown voltage value can be adjusted according to the requirement of the battery system. It will be appreciated that the above description of the ranges of values for the first shutdown voltage value and the second shutdown voltage value is by way of example only and not by way of limitation.

As can be appreciated, since the voltage of the battery = the voltage of the cell (V _cell ) -an operating current (I _bat ) The operating load (dc impedance RDC) is increased when the battery temperature is too low, i.e. the operating current (I) is too low to be lower than the first preset threshold (e.g. 10 ℃), while the terminal device is in a low temperature environment _bat ) The value of the operating load (RDC) increases, which in turn causes the battery voltage to drop sharply, easily to the default first shutdown voltage value. Thus in this embodiment, byWhen the battery temperature is detected to be lower than or equal to a first preset threshold value, the target shutdown voltage of the terminal equipment can be properly reduced, so that the problem that the shutdown voltage is reached in advance in a low-temperature environment can be improved to a certain extent.

Fig. 3 is a flowchart showing how to determine a target shutdown voltage of the terminal device based on the operation information according to an exemplary embodiment of the present disclosure. In this embodiment, the operation information of the terminal device may include an operation current and an operation load, and as shown in fig. 3, may include the following steps S301 to S302:

in step S301, a voltage margin is determined from the operating current and the operating load.

It should be noted that the target shutdown voltage may be adjusted based on the operating current and the workload. In addition, the current shutdown voltage may be adjusted based on the battery temperature before the target shutdown voltage is adjusted based on the operating current and the workload, i.e., the target shutdown voltage may be adjusted based on the battery temperature, the operating current, and the workload. That is, by performing steps S301 to S302, the target shutdown voltage is adjusted according to the operating current and the workload. Step S201 to step S204 may also be performed first to adjust the current shutdown voltage of the terminal device according to the battery temperature; then, step S301 to step S302 are performed to adjust the target shutdown voltage according to the operating current and the workload.

In this embodiment, after the working current and the working load of the terminal device are obtained during the working process of the terminal device, the voltage margin may be determined according to the working current and the working load. The corresponding voltage margin may be determined, for example, based on the magnitude of the product of the operating current and the operating load. The voltage margin may be understood as a reserved voltage margin corresponding to the product of the operating current and the operating load. In another embodiment, the above manner of determining the voltage margin according to the operating current and the operating load may be referred to the embodiment shown in fig. 5 below, and will not be described in detail here.

It should be noted that, in order to eliminate the influence of the larger workload on the battery voltage in the present embodiment, it is desirable to dynamically adjust the target shutdown voltage of the terminal device according to the working current and the workload, and to prevent the problem of unsafe battery caused by too low shutdown voltage of the terminal device, thereby setting the voltage margin (V _buffer )。

Considering the aging degree of the battery, before step 301, the aging degree of the battery may be measured by the charge-discharge cycle number of the battery, and then a correspondence relationship between the charge-discharge cycle number of the battery and the workload may be set, so that the current charge-discharge cycle number of the battery of the terminal device may be obtained, and based on the preset correspondence relationship between the charge-discharge cycle number and the workload, a workload (RDC) corresponding to the current charge-discharge cycle number may be determined, as shown in fig. 7.

In step S302, a target shutdown voltage of the terminal device is determined according to the operating current, the operating load, and the voltage margin.

In this embodiment, after determining the voltage margin according to the working current and the working load, the target shutdown voltage of the terminal device may be determined according to the working current, the working load, and the voltage margin.

Specifically, the above manner of determining the target shutdown voltage of the terminal device may be referred to the embodiment shown in fig. 4 below, which is not described in detail herein.

As can be seen from the foregoing description, in this embodiment, by determining the voltage margin according to the working current and the working load, and determining the target shutdown voltage of the terminal device according to the working current, the working load, and the voltage margin, it is possible to accurately determine the target shutdown voltage of the terminal device based on the working current and the working load of the terminal device in the working process, and to improve the rationality of determining the target shutdown voltage, so as to eliminate the influence of the larger load current on the voltage of the battery, thereby improving the problem that the shutdown voltage is reached in advance in the scene with the larger load current to a certain extent, and further improving the use experience of the user.

FIG. 4 is a flow chart illustrating how a target shutdown voltage of the terminal device is determined based on the operating current, the operating load, and the voltage margin, according to yet another exemplary embodiment of the present disclosure; the present embodiment is exemplified on the basis of the above-described embodiments by taking as an example how the target shutdown voltage of the terminal device is determined based on the operating current, the operating load, and the voltage margin.

On the basis of the embodiment shown in fig. 3, as shown in fig. 4, the above step S302 may further include the following steps S401 to S403:

in step S401, the product of the operating current and the workload is determined.

In step S402, a difference between the current shutdown voltage value and the product is calculated.

In step S403, the sum of the difference and the voltage margin is determined as a target shutdown voltage of the terminal device.

In this embodiment, when the terminal device obtains its own operating current (I _bat ) And a workload (RDC), the product of the operating current and the workload, i.e., I, may be determined _bat * RDC, and further calculate the current shutdown voltage value (V _{Currently, the method is that} ) The difference from the product, namely:

V _{Currently, the method is that} -I _bat * RDC, wherein the current shutdown voltage value (V _{Currently, the method is that} ) The current determined shutdown voltage may be a default shutdown voltage value, or a shutdown voltage value adjusted based on the operating information such as the battery temperature based on the default shutdown voltage value, which is not described in detail herein, and the specific determination manner may be referred to the embodiment shown in fig. 6 below.

On the basis, the difference value can be corresponding to the productVoltage margin (V) _buffer ) And determining a target shutdown voltage, i.e. a target shutdown voltage (V _bat ) Can be represented by the following formula (1):

V _bat ＝V _{currently, the method is that} -I _bat *RDC+V _buffer ； (1)

Wherein the voltage margin V _buffer Can be set based on actual conditions for preventing the current passing of V _{Currently, the method is that} -I _bat * The target shutdown voltage determined by the RDC "method is too low, resulting in a problem of unsafe battery of the terminal device.

In an embodiment, the voltage margin may be set in the following embodiment shown in fig. 5, which will not be described in detail herein.

As can be appreciated, since the voltage of the battery = the voltage of the cell (V _cell ) -an operating current (I _bat ) Workload (RDC), whereas when the terminal device has a large load current, i.e. operating current (I _bat ) When larger, the operating current (I _bat ) The value of the operating load (RDC) increases, which in turn causes the voltage of the battery to drop sharply, easily to the default first shutdown voltage value. Therefore, in this embodiment, by determining the product of the working current and the working load, calculating the difference between the current shutdown voltage value and the product, and further determining the sum of the difference and the voltage margin as the target shutdown voltage of the terminal device, the influence of the larger load current on the voltage of the battery can be eliminated, and the problem that the battery is unsafe due to the excessively low shutdown voltage which is currently dynamically adjusted can be prevented, so that the problem that the shutdown voltage is reached in advance in the scene with the larger load current can be improved to a certain extent.

FIG. 5 is a flow chart illustrating how to determine a voltage margin from the operating current and the operating load according to an exemplary embodiment of the present disclosure; the present embodiment is exemplified on the basis of the above-described embodiments by taking as an example how the voltage margin is determined from the operating current and the operating load. As shown in fig. 5, the determining the voltage margin according to the operating current and the operating load in the step S301 may include the following steps S501 to S504:

In step S501, the product of the operating current and the operating load is compared with a second preset threshold.

In step S502, it is determined whether the product is greater than the second preset threshold: if yes, go to step S503; if not, step S504 is performed.

In step S503, the voltage margin is determined as a first set value.

In step S504, the voltage margin is determined as a second set value.

In this embodiment, after determining the product of the operating current and the workload, the product may be compared with a second preset threshold. The second preset threshold may be set based on actual needs, for example, set to 20mV, which is not limited in this embodiment. On this basis, it may be determined whether the product is greater than the second preset threshold: if the product is determined to be greater than a second preset threshold, the voltage margin can be determined to be a first set value; if the product is detected to be less than or equal to the second preset threshold, the voltage margin may be determined to be a second set value, where the second set value may be set to be a value less than the first set value based on actual needs, which is not limited in this embodiment.

For example, suppose V _buffer Is the voltage margin left in the above formula (1), when I is detected _bat *RDC>At 20mV, V can be set _buffer 20mV; otherwise, when I is detected _bat * When RDC is less than or equal to 20mV, vbuffer can be set to 0mV. It will be appreciated that by this arrangement, the passage of "V" as described above can be effectively prevented _{Currently, the method is that} -I _bat * The dynamic adjustment of shutdown voltage by RDC "is too low, resulting in battery unsafe issues.

FIG. 6 is a flowchart illustrating how to determine the current shutdown voltage value, according to an exemplary embodiment of the disclosure; the present embodiment is exemplified on the basis of the above-described embodiments by taking as an example how to determine the current shutdown voltage value. In this embodiment, the operation information includes the battery temperature in addition to the operation information including the operation current and the operation load.

Specifically, the present embodiment may further include determining the current shutdown voltage value based on the following steps S601 to S604 before calculating the difference between the current shutdown voltage value and the product as described in step S402 of the embodiment shown in fig. 4:

in step S601, the battery temperature is compared with a first preset threshold.

In step S602, it is determined whether the battery temperature is higher than a first preset threshold: if yes, go to step S603; if not, step S604 is performed.

In step S603, the first shutdown voltage value is taken as the current shutdown voltage value.

In step S604, the second shutdown voltage value is taken as the current shutdown voltage value; wherein the second shutdown voltage value is less than the first shutdown voltage value.

In this embodiment, after the terminal device acquires its own battery temperature during the operation, the battery temperature may be compared with a first preset threshold. The first preset threshold may be set based on actual needs, for example, set to 10 ℃, which is not limited in this embodiment.

And when the battery temperature is determined to be lower than or equal to the first preset threshold value, the second shutdown voltage value can be determined to be the target shutdown voltage of the terminal device. The second shutdown voltage value is smaller than the default first shutdown voltage value. For example, in the case where the default shutdown voltage of the single-cell terminal device is 3.4V and the default shutdown voltage of the dual-cell terminal device is 6.8V, the second shutdown voltage values may be 3.2V and 6.4V, respectively. That is, when it is detected that the battery temperature is lower than or equal to the first preset threshold, the target shutdown voltage of the terminal device of the single cell may be adjusted down from 3.4V to 3.2V by default, and the target shutdown voltage of the terminal device of the dual cell may be adjusted down from 6.8V to 6.4V by default.

It should be noted that, the first shutdown voltage value 3.4V and the second shutdown voltage value 3.2V in the case of the single cell and the first shutdown voltage value 6.8V and the second shutdown voltage value 6.4V in the case of the dual cell are only used for illustration, and specific values of the first voltage and the second voltage can be adjusted according to the requirements of the battery system in practical application, which is not limited in this embodiment.

FIG. 7 is a flowchart illustrating how to obtain the operational information of the terminal device according to an exemplary embodiment of the present disclosure; the present embodiment is exemplified on the basis of the above-described embodiments by taking as an example how to acquire the operation information of the terminal device. In this embodiment, the work information may include a work load. On this basis, the acquiring the working information of the terminal device described in the step S101 may include the following steps S701 to S702:

In step S701, the current charge-discharge cycle number of the battery of the terminal device is acquired.

In step S702, based on the correspondence between the charge-discharge cycle number and the workload constructed in advance, the workload corresponding to the current charge-discharge cycle number is determined.

In this embodiment, considering that the shutdown voltage adjustment manner shown in the embodiment shown in fig. 3 is related to the operating load, which is in turn related to the internal resistance of the battery, the aging degree of the battery may be considered in order to more accurately determine the operating load. Specifically, based on the embodiment shown in fig. 3, before step 301, the aging degree of the battery may be measured by the charge-discharge cycle number of the battery, then the correspondence between the charge-discharge cycle number of the battery and the workload may be set, and further the workload (RDC) corresponding to the current charge-discharge cycle number may be determined by obtaining the current charge-discharge cycle number of the battery of the terminal device and based on the preset correspondence between the charge-discharge cycle number and the workload.

Therefore, the embodiment can ensure that the shutdown voltage value can be dynamically adjusted based on the shutdown voltage adjustment mode of the embodiment shown in fig. 3 when the battery ages, and can obtain better effects. It is understood that, considering that the electrochemical characteristics of the batteries of the respective models are different, the corresponding relationship between the number of charge and discharge cycles and the RDC may be different, and thus the correspondence between the number of charge and discharge cycles and the RDC of each specific model may be constructed based on actual needs. Illustratively, the correspondence between the number of charge and discharge cycles and the workload, which is pre-constructed in this embodiment, may be as shown in the following table one:

List one

As can be seen from the foregoing description, in this embodiment, by obtaining the current charge-discharge cycle number of the battery of the terminal device and determining the workload corresponding to the current charge-discharge cycle number based on the corresponding relationship between the pre-constructed charge-discharge cycle number and the workload, the accuracy of determining the workload of the terminal device can be improved, and further, the accuracy of adjusting the shutdown voltage based on the product of the workload and the working current can be improved, so that the use experience of the user in a scenario where the terminal device has a larger load can be effectively improved.

FIG. 8 is a block diagram illustrating a shutdown voltage adjustment device, according to an example embodiment; the device of the embodiment can be applied to a terminal device (such as a smart phone, a tablet computer or a wearable device). As shown in fig. 8, the apparatus may include: an acquisition module 110, a determination module 120, and an adjustment module 130, wherein:

an obtaining module 110, configured to obtain, during operation of a terminal device, operation information of the terminal device;

a determining module 120 for determining a target shutdown voltage of the terminal device based on the working information

And the adjusting module 130 is configured to adjust the shutdown voltage of the terminal device to the target shutdown voltage.

As can be seen from the foregoing description, the apparatus in this embodiment obtains the working information of the terminal device during the working process of the terminal device, and determines the target shutdown voltage of the terminal device based on the working information, so as to adjust the shutdown voltage of the terminal device to the target shutdown voltage, which can dynamically adjust the target shutdown voltage of the terminal device based on the working information obtained by the terminal device during the working process, so as to improve the rationality of adjusting the shutdown voltage of the terminal device later.

Fig. 9 is a block diagram of a shutdown voltage regulating device according to yet another exemplary embodiment; the device of the embodiment can be applied to a terminal device (such as a smart phone, a tablet computer or a wearable device). The functions of the acquiring module 210, the determining module 220 and the adjusting module 230 are the same as those of the acquiring module 110, the determining module 120 and the adjusting module 130 in the embodiment shown in fig. 8, and are not described herein.

In an embodiment, the working information includes at least one of:

In one embodiment, the operating information may include battery temperature;

on the basis of this, the determination module 220 includes a first determination unit 221;

the first determining unit 221 may be configured to:

In another embodiment, the operating information may include operating current and operating load;

further, the determining module 220 may include a second determining unit 222;

the second determining unit 222 may be configured to:

determining a voltage margin from the operating current and the operating load;

In an embodiment, the second determining unit 222 may be further configured to:

determining a product of the operating current and the operating load;

In an embodiment, the second determining unit 222 may be further configured to:

In an embodiment, the determining module 220 further comprises a current shutdown voltage value determining unit 223;

the current shutdown voltage value determination unit 223 may be configured to determine the current shutdown voltage value based on:

In an embodiment, the acquisition module 210 includes a workload determination unit 211;

the workload determination unit 211 may be configured to:

The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.

Fig. 10 is a block diagram of an electronic device, according to an example embodiment. For example, device 900 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, and the like.

Referring to fig. 10, device 900 may include one or more of the following components: a processing component 902, a memory 904, a power component 906, a multimedia component 908, an audio component 910, an input/output (I/O) interface 912, a sensor component 914, and a communication component 916.

The processing component 902 generally controls overall operation of the device 900, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 902 may include one or more processors 920 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 902 can include one or more modules that facilitate interaction between the processing component 902 and other components. For example, the processing component 902 can include a multimedia module to facilitate interaction between the multimedia component 908 and the processing component 902.

The memory 904 is configured to store various types of data to support operations at the device 900. Examples of such data include instructions for any application or method operating on device 900, contact data, phonebook data, messages, pictures, videos, and the like. The memory 904 may be implemented by any type of volatile or nonvolatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power supply component 906 provides power to the various components of the device 900. Power supply components 906 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for device 900.

The multimedia component 908 comprises a screen between the device 900 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 908 includes a front-facing camera and/or a rear-facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 900 is in an operational mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 910 is configured to output and/or input audio signals. For example, the audio component 910 includes a Microphone (MIC) configured to receive external audio signals when the device 900 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 904 or transmitted via the communication component 916. In some embodiments, the audio component 910 further includes a speaker for outputting audio signals.

The I/O interface 912 provides an interface between the processing component 902 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 914 includes one or more sensors for providing status assessment of various aspects of the device 900. For example, the sensor assembly 914 may detect the on/off state of the device 900, the relative positioning of the components, such as the display and keypad of the device 900, the sensor assembly 914 may also detect the change in position of the device 900 or one component of the device 900, the presence or absence of user contact with the device 900, the orientation or acceleration/deceleration of the device 900, and the change in temperature of the device 900. The sensor assembly 914 may also include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 914 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 914 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 916 is configured to facilitate communication between the device 900 and other devices, either wired or wireless. The device 900 may access a wireless network based on a communication standard, such as WiFi,2G or 3G,4G or 5G, or a combination thereof. In one exemplary embodiment, the communication component 916 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 916 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 900 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for executing the methods described above.

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as a memory 904 including instructions executable by the processor 920 of the device 900 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A shutdown voltage adjustment method, the method comprising:

2. The method of claim 1, wherein the operational information comprises at least one of:

3. The method of claim 1, wherein the operational information comprises: a battery temperature;

4. The method according to claim 1 or 2, wherein the work information comprises: operating current and operating load;

determining a voltage margin from the operating current and the operating load;

5. The method of claim 4, wherein determining a target shutdown voltage for the terminal device based on the operating current, the operating load, and the voltage margin comprises:

determining a product of the operating current and the operating load;

6. The method of claim 4, wherein the voltage margin is determined based on:

7. The method of claim 5, further comprising determining the current shutdown voltage value based on:

8. A method according to claim 3, wherein prior to the step of determining the product of the operating current and the workload, the method further comprises:

9. A shutdown voltage adjustment device, the device comprising:

10. The apparatus of claim 9, wherein the operational information comprises at least one of:

11. The apparatus of claim 9, wherein the operational information comprises: a battery temperature;

the determining module comprises a first determining unit;

the first determining unit is configured to:

12. The apparatus of claim 9 or 10, wherein the operating information comprises an operating current and an operating load;

the determining module comprises a second determining unit;

the second determining unit is configured to:

determining a voltage margin from the operating current and the operating load;

13. The apparatus of claim 12, wherein the second determining unit is further configured to:

Determining a product of the operating current and the operating load;

14. The apparatus of claim 12, wherein the second determining unit is further configured to:

15. The apparatus of claim 13, wherein the determination module further comprises a current shutdown voltage value determination unit;

16. The apparatus of claim 11, wherein the acquisition module comprises a workload determination unit;

the workload determination unit is configured to:

17. An electronic device, the device comprising:

a processor and a memory for storing a computer program;

18. A computer readable storage medium having stored thereon a computer program, the program being embodied when executed by a processor: