CN108417919B - Battery voltage adjusting method and device and mobile terminal - Google Patents
Battery voltage adjusting method and device and mobile terminal Download PDFInfo
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- CN108417919B CN108417919B CN201810186314.3A CN201810186314A CN108417919B CN 108417919 B CN108417919 B CN 108417919B CN 201810186314 A CN201810186314 A CN 201810186314A CN 108417919 B CN108417919 B CN 108417919B
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- 238000007086 side reaction Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
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- 238000012545 processing Methods 0.000 description 2
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- 229910052782 aluminium Inorganic materials 0.000 description 1
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- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
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- 206010016766 flatulence Diseases 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/443—Methods for charging or discharging in response to temperature
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- H02J7/008—
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- H02J7/0091—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application provides a battery voltage adjusting method, a battery voltage adjusting device and a mobile terminal, which are applied to a mobile terminal comprising a battery, wherein different temperature ranges and preset voltage thresholds corresponding to the different temperature ranges are stored in the mobile terminal. The method comprises the following steps: monitoring the current temperature of the battery, and determining a target voltage threshold corresponding to the monitored current temperature from prestored voltage thresholds; monitoring the current voltage of the battery, and controlling the charging and discharging state of the battery according to the magnitude relation between the monitored current voltage and the target voltage threshold value, so that the voltage of the battery is matched with the current temperature. Therefore, the battery can work under the appropriate voltage corresponding to the current temperature, and the service life of the battery is prolonged.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a battery voltage adjusting method and device and a mobile terminal.
Background
When the technical characteristics of the current battery lead to that the battery is in a high-temperature environment, the electrolyte can generate side reaction to release hydrogen fluoride toxic gas and a large amount of carbon dioxide gas, so that the battery generates safety problems such as swelling and the like. When the battery is under high voltage (e.g., greater than 4.1 volts), the electrolyte side reactions are further exacerbated, accelerating the swelling of the battery. When the battery bulges and expands seriously, the gas can further extrude the battery core or burst an aluminum film of the battery core outer package, so that the electrolyte of the battery is leaked, and the safety accidents of short circuit, fire or battery explosion and the like of the mobile terminal are caused.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a method and an apparatus for adjusting a battery voltage, and a mobile terminal, so as to solve the above problem.
In order to achieve the above object, an embodiment of the present application provides a battery voltage adjusting method, which is applied to a mobile terminal including a battery, where different temperature ranges and preset voltage thresholds corresponding to the different temperature ranges are stored in the mobile terminal; the method comprises the following steps:
monitoring the current temperature of the battery, and determining a target temperature range to which the monitored current temperature belongs in a prestored temperature range;
taking the voltage threshold corresponding to the target temperature range as a target voltage threshold corresponding to the current temperature;
and monitoring the current voltage of the battery, and controlling the charging and discharging state of the battery according to the magnitude relation between the monitored current voltage and the target voltage threshold value so as to enable the voltage of the battery to be matched with the current temperature.
Optionally, controlling the charge-discharge state of the battery according to the relationship between the monitored current voltage and the target voltage threshold includes:
discharging the battery to reduce the voltage of the battery when the monitored current voltage is greater than the target voltage threshold;
and when the monitored current voltage is smaller than the target voltage threshold value, charging the battery to increase the voltage of the battery.
Optionally, the mobile terminal is electrically connected with a charger; discharging the battery, comprising:
and controlling the battery to supply power to the mobile terminal, and controlling the charger to stop supplying power to the mobile terminal.
Optionally, the mobile terminal is electrically connected with a charger; charging the battery, comprising:
and controlling the charger to supply power to the mobile terminal and controlling the charger to charge the battery.
Optionally, the method further comprises:
and when the monitored current voltage is equal to the target voltage threshold value, controlling the charger to supply power to the mobile terminal, and controlling the battery to stop supplying power to the mobile terminal, so that the battery maintains the current voltage.
The embodiment of the application also provides a battery voltage adjusting device, which is applied to a mobile terminal comprising a battery, wherein different temperature ranges and preset voltage thresholds corresponding to the different temperature ranges are stored in the mobile terminal; the device comprises:
the first determination module is used for monitoring the current temperature of the battery and determining a target temperature range to which the monitored current temperature belongs in a prestored voltage threshold;
a second determining module, configured to use a voltage threshold corresponding to the target temperature range as a target voltage threshold corresponding to the current temperature;
and the adjusting module is used for monitoring the current voltage of the battery, and controlling the charging and discharging state of the battery according to the magnitude relation between the monitored current voltage and the target voltage threshold value, so that the voltage of the battery is matched with the current temperature.
Optionally, the adjusting module includes:
the first adjusting submodule is used for discharging the battery to reduce the voltage of the battery when the monitored current voltage is greater than the target voltage threshold;
and the second adjusting submodule is used for charging the battery to enable the voltage of the battery to be increased when the monitored current voltage is smaller than the target voltage threshold.
Optionally, the mobile terminal is electrically connected to a charger, and the first adjusting submodule controls the battery to supply power to the mobile terminal, and controls the charger to stop supplying power to the mobile terminal, so as to discharge the battery.
Optionally, the mobile terminal is electrically connected to a charger, and the second adjusting submodule controls the charger to supply power to the mobile terminal, controls the charger to charge the battery, and charges the battery.
Optionally, the adjusting module further comprises:
and the third adjusting submodule is used for controlling the charger to supply power to the mobile terminal and controlling the battery to stop supplying power to the mobile terminal when the monitored current voltage is equal to the target voltage threshold value, so that the battery maintains the current voltage.
The embodiment of the application also provides a mobile terminal, which comprises a memory, a processor, a battery and the battery voltage adjusting device provided by the embodiment of the application, wherein the battery voltage adjusting device is stored in the memory and is configured to be controlled and executed by the processor to realize the adjustment of the voltage of the battery.
The embodiment of the present application further provides a storage medium, on which computer readable instructions are stored, and the computer readable instructions, when executed, implement the battery voltage adjusting method provided by the embodiment of the present application.
Compared with the prior art, the method has the following beneficial effects:
the embodiment of the application provides a battery voltage adjusting method, a battery voltage adjusting device and a mobile terminal. The mobile terminal monitors the current temperature of the battery, determines a target voltage threshold corresponding to the monitored current temperature from prestored voltage thresholds, monitors the current voltage of the battery, and controls the charging and discharging state of the battery according to the magnitude relation between the monitored current voltage and the target voltage threshold, so that the voltage of the battery is matched with the current temperature. Therefore, the battery can work under the appropriate voltage corresponding to the current temperature, and the service life of the battery is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic block diagram of a mobile terminal according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart of a battery voltage adjustment method according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a characteristic curve of a battery according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of a charging circuit of a battery according to an embodiment of the present disclosure;
fig. 5 is a functional block diagram of a battery voltage adjustment apparatus according to an embodiment of the present disclosure.
Icon: 100-a mobile terminal; 110-battery voltage regulation means; 111-a first determination module; 112-a second determination module; 113-an adjustment module; 1131 — a first adjustment submodule; 1132-a second trim submodule; 1133, a third adjustment submodule; 120-a memory; 130-a processor; 140-a battery; 200-charger.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In practical applications, in order to avoid the battery of the mobile terminal being in a high-temperature and high-voltage state, different charging limit voltages are generally set for high temperature, normal temperature and low temperature. In the charging process, when the voltage of the battery reaches the preset charging limiting voltage, the charger supplies power to the mobile terminal, the battery cannot discharge, and therefore the situation that the battery is too high in voltage to generate swelling and flatulence in the charging process can be avoided.
However, as the mobile terminal is applied more and more widely, the battery of the mobile terminal is inevitably in a high-temperature and high-pressure state. For example, in an application scenario in which a mobile terminal is used for live broadcasting, a user charges a battery of the mobile terminal before live broadcasting, so that the voltage of the battery reaches above 4.3V, and in the live broadcasting process, the internal temperature of the mobile terminal may reach above 50 ℃, and the battery of the mobile terminal cannot be charged at this time. In the above manner, the mobile terminal is powered by the charger at this time, that is, the battery is in a state of not being charged and not being discharged during the whole subsequent live broadcast (possibly for several hours or tens of hours), and a high voltage of 4.3V or more is maintained.
In the above process, the battery is inevitably in a high-temperature and high-pressure state, and in this state, the battery of the mobile terminal may have a serious side reaction, accelerate swelling, and cause a safety problem. Through multi-party research and statistics of the inventor, according to the existing scheme, the battery of the mobile terminal can be inflated approximately in three months under certain high-temperature scenes.
It should be understood that the defects existing in the above solutions are the results obtained after the inventor has practiced and studied carefully, and therefore, the discovery process of the above problems and the solutions proposed by the following embodiments of the present application to the above problems should be the contribution of the inventor to the present application in the course of the invention.
Based on the above research, embodiments of the present application provide a method and an apparatus for adjusting a battery voltage, and a mobile terminal, where different temperature ranges and preset voltage thresholds corresponding to the different temperature ranges are stored in the mobile terminal. The current temperature of the battery is monitored, and the target voltage threshold of the battery is determined according to the target temperature range to which the current temperature of the battery belongs. And monitoring the current voltage of the battery, and adjusting the charge-discharge state of the battery according to the magnitude relation between the current voltage and the target voltage threshold value so as to enable the voltage of the battery to be matched with the current temperature. Thus, the battery can be prevented from being in a high-temperature and high-pressure state for a long time.
Fig. 1 is a block diagram of a mobile terminal 100 according to an embodiment of the present disclosure. The mobile terminal 100 may be any mobile electronic device including a battery, such as a mobile phone, a tablet computer, a notebook computer, a PDA (personal digital Assistant), and the like.
The mobile terminal 100 includes a battery voltage adjustment device 110, a memory 120, a processor 130, and a battery 140.
The memory 120, the processor 130 and the battery 140 are electrically connected to each other directly or indirectly to realize data transmission or interaction. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The battery voltage adjusting means 110 includes at least one software functional module and a computer program, which may be stored in the memory 120 in the form of software (software) or firmware (firmware) or solidified in an Operating System (OS) of the mobile terminal 100.
The Memory 120 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like.
The processor 130 may be an integrated circuit chip having signal processing capabilities. The processor 130 may be a general-purpose processor including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor 130 may be any conventional processor or the like.
The battery 140 may be used to power various components in the mobile terminal 100.
It should be understood that the configuration shown in fig. 1 is merely exemplary, and that mobile terminal 100 may include more or fewer components than shown in fig. 1, and may have a configuration that is completely different from that shown in fig. 1. The components shown in fig. 1 may be implemented in hardware, software, or a combination thereof.
Please refer to fig. 2, which is a flowchart illustrating a method for adjusting a battery voltage according to an embodiment of the present application, and is applied to the mobile terminal 100 shown in fig. 1. The specific process and steps of the method are described in detail below with reference to fig. 2.
Step S201, the current temperature of the battery 140 is monitored, and a target temperature range to which the monitored current temperature belongs is determined in a pre-stored temperature range.
Step S202, using the voltage threshold corresponding to the target temperature range as the target voltage threshold corresponding to the current temperature.
In the present embodiment, different temperature ranges and preset voltage thresholds corresponding to the different temperature ranges are stored in the mobile terminal 100. The different temperature ranges and the voltage thresholds corresponding to the different temperature ranges may be preset according to a characteristic curve of the battery 140 of the mobile terminal 100, which is not limited in this embodiment.
In detail, the current temperature of the battery 140 may be acquired in real time by a temperature acquisition device such as a temperature sensor. The real-time means that the temperature of the battery 140 is acquired once every preset time interval, and the preset time interval may be flexibly set according to actual requirements, for example, 0.5 second, 1 second, 2 seconds, and the like, which is not limited in this embodiment.
And aiming at the current temperature acquired each time, finding out the temperature range to which the current temperature belongs from the pre-stored temperature range as the target temperature range of the current temperature. For example, assuming that two temperature ranges of 15 ℃ -45 ℃ and 45 ℃ -55 ℃ are pre-stored in the mobile terminal 100, if the current collected temperature of the battery 140 is 22 ℃, it can be determined that the current temperature belongs to the temperature range of 15 ℃ -45 ℃, that is, the target temperature range of the current temperature is 15 ℃ -45 ℃.
After the target temperature range is determined, the voltage threshold corresponding to the target temperature range can be obtained from the pre-stored voltage thresholds, and the obtained voltage threshold is used as the target voltage threshold corresponding to the current temperature.
Still taking the above example as an example, assume that the voltage threshold for the temperature range of 15 deg.C-45 deg.C is a and the voltage threshold for the temperature range of 45 deg.C-55 deg.C is b. Then, after determining the target temperature range of 15-45 ℃ of the current temperature 22 ℃, the voltage threshold a corresponding to the range of 15-45 ℃ can be directly obtained as the target voltage threshold corresponding to the current temperature 22 ℃.
Step S203, monitoring the current voltage of the battery 140, and controlling the charge/discharge state of the battery 140 according to the magnitude relationship between the monitored current voltage and the target voltage threshold, so that the voltage of the battery 140 matches the current temperature.
In practice, after determining the target voltage threshold of the current temperature, the current voltage of the battery 140 may be collected by an electricity meter and compared with the target voltage threshold. Then, the charge and discharge state of the battery 140 is adjusted according to the comparison result.
In the present embodiment, the target voltage threshold is an appropriate operating voltage of the battery 140 in the target temperature range. The voltage of the battery 140 matches the current temperature, and may be a voltage at which the voltage of the battery 140 reaches a suitable voltage at the current temperature.
Based on this, step S203 may include the following sub-steps:
discharging the battery 140 to lower the present voltage of the battery 140 when the present voltage of the battery 140 is greater than the target voltage threshold;
when the current voltage of the battery 140 is less than the target voltage threshold, the battery 140 is charged to increase the current voltage of the battery 140.
Thus, the current voltage of the battery 140 can be adjusted to an appropriate operating voltage at the current temperature, thereby prolonging the service life of the battery 140.
The target voltage threshold may be set according to an appropriate operating voltage of the battery 140 in the target temperature range. Also, the appropriate voltage of the battery 140 varies from case to case. In one embodiment, the suitable voltage of the battery 140 may be a target voltage threshold corresponding to the current temperature.
For example, as shown in fig. 3, fig. 3 is a schematic diagram of a characteristic curve of a pouch battery 140. When the temperature of the battery 140 is lower than 43 ℃, the suitable operating voltage is 4.1V-4.4V, and the voltage threshold corresponding to the temperature range lower than 43 ℃ can be set to 4.4V. When the temperature of the battery 140 is higher than 45 ℃, the suitable operating voltage is about 4.1V, and the voltage threshold corresponding to the temperature range higher than 45 ℃ can be set to 4.1V.
In this way, when the target temperature range of the battery 140 is a temperature range smaller than 43 ℃, if it is detected that the current voltage of the battery 140 is smaller than 4.4V, the mobile terminal 100 charges the battery 140, and until the current voltage of the battery 140 is larger than 4.4V, the mobile terminal 100 discharges the battery 140. Thus, the voltage of the battery 140 can be maintained at about 4.4V.
When the target temperature range of the battery 140 is greater than 45 ℃, if it is detected that the current voltage of the battery 140 is less than 4.1V, the mobile terminal 100 charges the battery 140, and until the current voltage of the battery 140 is greater than 4.1V, the mobile terminal 100 discharges the battery 140. Thus, the voltage of the battery 140 can be maintained at about 4.1V.
In another embodiment, the suitable voltage for battery 140 may be a range. For example, when the temperature of the battery 140 is less than 43 ℃, the operating voltage of the battery 140 is preferably greater than 4.1V, in which case, the voltage threshold corresponding to the temperature range of the battery 140 less than 43 ℃ may be set to a value greater than or equal to the full voltage (e.g., 4.45V shown in fig. 3), and thus, the mobile terminal 100 may always charge the battery 140 to operate at the suitable voltage as long as the voltage of the battery 140 does not reach the full voltage. In this case, the current voltage of the battery 140 may not reach the target voltage threshold, but since the suitable operating voltage of the battery 140 is a range, such as the range greater than 4.1V, the current voltage of the battery 140 can still reach the suitable voltage at the current temperature by the method provided by the embodiment.
In the present embodiment, in order to increase the speed of charging the battery 140, the battery 140 may be charged as follows:
the charger 200 is controlled to supply power to the mobile terminal 100, and the charger 200 is controlled to charge the battery 140.
Thus, when the battery 140 is charged, the electric energy of the battery 140 is not consumed by supplying power to the mobile terminal 100, so that the electric energy of the battery 140 can be rapidly increased, and the voltage of the battery 140 can be rapidly increased to rapidly reach the target voltage threshold.
Correspondingly, in order to increase the speed of discharging the battery 140, the battery 140 may be discharged as follows:
the battery 140 is controlled to supply power to the mobile terminal 100, and the charger 200 is controlled to stop supplying power to the mobile terminal 100.
In this way, all the power used by the mobile terminal 100 is provided by the battery 140, and the power of the battery 140 can be consumed quickly, so as to achieve the effect of quickly reducing the voltage of the battery 140.
Optionally, in this embodiment, the method for adjusting the battery voltage provided by this embodiment may further include the following steps:
when the monitored current voltage is equal to the target voltage threshold, controlling the charger 200 to supply power to the mobile terminal 100, and controlling the battery 140 to stop supplying power to the mobile terminal 100, so that the battery 140 maintains the current voltage.
In this way, the current voltage of the battery 140 can be always maintained at the appropriate voltage corresponding to the current temperature, thereby extending the service life of the battery 140. Alternatively, as shown in fig. 4, in the present embodiment, the mobile terminal 100 may be connected through a Type-CUSB interface. Q1-Q8 are switching elements, and MOS tubes can be adopted as the switching elements.
The Q5 and the Q6 form a power supply system of the mobile terminal 100, the drains of the Q5 and the Q6 are electrically connected to the processor 130 of the mobile terminal 100, and the gate and the source are connected in series between the power supply contact of the USB interface of the mobile terminal 100 and the battery 140 of the mobile terminal 100. The Q1-Q4 form a charging system of the mobile terminal 100, and the drains of the Q1-Q4 are electrically connected to the processor 130 of the mobile terminal 100. The processor 130 may control the Q1-Q6 to turn off or on.
In practice, when Q1 is turned off and Q4 is turned on, the charger 200 will stop supplying power to the system power source of the mobile terminal 100, and the battery 140 will supply power to the system power source of the mobile terminal 100 through Q4. As such, when the monitored current voltage is greater than the target voltage threshold, Q1, Q5, and Q6 may be controlled to turn off, and Q4 may be controlled to turn on.
When Q1 and Q4 are turned on, the current of the charger 200 supplies power to the system power source of the mobile terminal 100 through Q1 → Q2 or Q3, while supplying power to the battery 140 through Q1 → Q2 or Q3 → Q4; alternatively, when Q4, Q5, and Q6 are turned on, the current of the charger 200 supplies power to the battery 140 through Q5 → Q6, while supplying power to the system power source of the mobile terminal 100 through Q5 → Q6 → Q4. As such, when the monitored present voltage is less than the target voltage threshold, Q1 and Q4 may be controlled to turn on, and Q4, Q5, and Q6 may also be controlled to turn on.
When Q1 is turned on and Q4 is turned off, the current of the charger 200 will supply power to the system power source of the mobile terminal 100 through Q1 → Q2 or Q3, and the battery 140 will stop supplying power to the system power source of the mobile terminal 100. As such, when the monitored current voltage is equal to the target voltage threshold, Q1 may be controlled to turn on, Q4 to turn off.
As shown in fig. 5, a battery voltage adjusting apparatus 110 provided in the embodiment of the present application is applied to the mobile terminal 100 shown in fig. 1, and the apparatus includes a first determining module 111, a second determining module 112, and an adjusting module 113.
The first determining module 111 is configured to monitor a current temperature of the battery 140, and determine a target temperature range to which the monitored current temperature belongs from pre-stored voltage thresholds.
In the present embodiment, the description about the first determining module 111 may refer to the detailed description of step S201 shown in fig. 2, that is, step S201 may be performed by the first determining module 111.
The second determining module 112 is configured to use the voltage threshold corresponding to the target temperature range as the target voltage threshold corresponding to the current temperature.
In the present embodiment, the description about the second determining module 112 may specifically refer to the detailed description of step S202 shown in fig. 2, that is, step S202 may be performed by the second determining module 112.
The adjusting module 113 is configured to monitor a current voltage of the battery 140, and control a charge/discharge state of the battery 140 according to a magnitude relationship between the monitored current voltage and the target voltage threshold, so that the voltage of the battery 140 matches the current temperature.
In the present embodiment, the description of the adjusting module 113 may refer to the detailed description of step S203 shown in fig. 2, that is, step S203 may be performed by the adjusting module 113.
Optionally, in this embodiment, the adjusting module 113 may include a first adjusting sub-module 1131 and a second adjusting sub-module 1132.
The first adjusting submodule 1131 is configured to discharge the battery 140 to decrease the voltage of the battery 140 when the monitored current voltage is greater than the target voltage threshold.
Optionally, the mobile terminal 100 may be electrically connected to the charger 200, and based on this, the first adjusting submodule 1131 may control the battery 140 to supply power to the mobile terminal 100, and control the charger 200 to stop supplying power to the mobile terminal 100, so as to discharge the battery 140.
The second adjusting submodule 1132 is configured to charge the battery 140 to increase the voltage of the battery 140 when the monitored current voltage is smaller than the target voltage threshold.
Optionally, in the present embodiment, the mobile terminal 100 may be electrically connected to the charger 200. Based on this, second adjusting submodule 1132 may control charger 200 to supply power to mobile terminal 100, and control charger 200 to charge battery 140, so as to charge battery 140.
Optionally, in this embodiment, the adjusting module 113 may further include a third adjusting submodule 1133, configured to control the charger 200 to supply power to the mobile terminal 100 and control the battery 140 to stop supplying power to the mobile terminal 100 when the monitored current voltage is equal to the target voltage threshold, so that the battery 140 maintains the current voltage.
To sum up, according to the battery voltage adjustment method, the battery voltage adjustment device and the mobile terminal provided in the embodiments of the present application, the mobile terminal monitors the current temperature of the battery, determines the target voltage threshold corresponding to the monitored current temperature from the pre-stored voltage thresholds, monitors the current voltage of the battery, and controls the charge and discharge state of the battery according to the magnitude relationship between the monitored current voltage and the target voltage threshold, so that the voltage of the battery is matched with the current temperature. Therefore, the battery can work under the appropriate voltage corresponding to the current temperature, and the service life of the battery is prolonged.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (11)
1. The battery voltage adjusting method is characterized by being applied to a mobile terminal comprising a battery, wherein different temperature ranges and preset voltage thresholds corresponding to the different temperature ranges are stored in the mobile terminal; the method comprises the following steps:
monitoring the current temperature of the battery, and determining a target temperature range to which the monitored current temperature belongs in a prestored temperature range;
taking the voltage threshold corresponding to the target temperature range as a target voltage threshold corresponding to the current temperature;
monitoring the current voltage of the battery, and controlling the charging and discharging state of the battery according to the magnitude relation between the monitored current voltage and the target voltage threshold value so as to enable the voltage of the battery to be matched with the current temperature;
the mobile terminal comprises a first switch element, a second switch element, a third switch element, a fourth switch element, a fifth switch element and a sixth switch element;
a fifth switching element and a sixth switching element form a power supply system of the mobile terminal, the drains of the fifth switching element and the sixth switching element are electrically connected with a processor of the mobile terminal, and the gates and the sources of the fifth switching element and the sixth switching element are connected in series between a power supply contact of a USB interface of the mobile terminal and a battery of the mobile terminal; the first switch element, the second switch element, the third switch element and the fourth switch element form a charging system of the mobile terminal, and drains of the first switch element, the second switch element, the third switch element and the fourth switch element are all electrically connected with a processor of the mobile terminal; the processor may control the first, second, third, and fourth, fifth, and sixth switching elements to be turned off or on;
when the current voltage monitored by the processor is greater than the target voltage threshold value, controlling the first switching element, the fifth switching element and the sixth switching element to be turned off, and controlling the fourth switching element to be turned on, so that a charger stops supplying power to a system power supply of the mobile terminal, and the battery supplies power to the system power supply of the mobile terminal through the fourth switching element;
when the current voltage monitored by the processor is smaller than the target voltage threshold, controlling a first switching element and a fourth switching element to be switched on, supplying power to a system power supply of the mobile terminal by the current of the charger through the first switching element to the second switching element or supplying power to the system power supply of the mobile terminal by the current of the charger through the first switching element to the third switching element, and supplying power to the battery by the current of the charger through the first switching element, the second switching element to the fourth switching element or supplying power to the battery through the first switching element, the third switching element to the fourth switching element; or when the current voltage monitored by the processor is smaller than the target voltage threshold, controlling a fourth switching element, a fifth switching element and a sixth switching element to be switched on, wherein the current of the charger supplies power to the battery through the fifth switching element to the sixth switching element, and simultaneously supplies power to a system power supply of the mobile terminal through the fifth switching element to the sixth switching element and then to the fourth switching element;
when the current voltage monitored by the processor is equal to the target voltage threshold value, the first switch element is controlled to be switched on, the fourth switch element is controlled to be switched off, the current of the charger can supply power to the system power supply of the mobile terminal through the first switch element to the second switch element or supply power to the system power supply of the mobile terminal through the first switch element to the third switch element, and the battery stops supplying power to the system power supply of the mobile terminal.
2. The method of claim 1, wherein controlling the charge and discharge state of the battery according to the magnitude relationship between the monitored current voltage and the target voltage threshold comprises:
discharging the battery to reduce the voltage of the battery when the monitored current voltage is greater than the target voltage threshold;
and when the monitored current voltage is smaller than the target voltage threshold value, charging the battery to increase the voltage of the battery.
3. The method of claim 2, wherein the mobile terminal is electrically connected to a charger; discharging the battery, comprising:
and controlling the battery to supply power to the mobile terminal, and controlling the charger to stop supplying power to the mobile terminal.
4. The method of claim 2, wherein the mobile terminal is electrically connected to a charger; charging the battery, comprising:
and controlling the charger to supply power to the mobile terminal and controlling the charger to charge the battery.
5. The method according to claim 3 or 4, characterized in that the method further comprises:
and when the monitored current voltage is equal to the target voltage threshold value, controlling the charger to supply power to the mobile terminal, and controlling the battery to stop supplying power to the mobile terminal, so that the battery maintains the current voltage.
6. The battery voltage adjusting device is characterized by being applied to a mobile terminal comprising a battery, wherein different temperature ranges and preset voltage thresholds corresponding to the different temperature ranges are stored in the mobile terminal; the device comprises:
the first determination module is used for monitoring the current temperature of the battery and determining a target temperature range to which the monitored current temperature belongs in a prestored voltage threshold;
a second determining module, configured to use a voltage threshold corresponding to the target temperature range as a target voltage threshold corresponding to the current temperature;
the adjusting module is used for monitoring the current voltage of the battery, and controlling the charging and discharging state of the battery according to the magnitude relation between the monitored current voltage and the target voltage threshold value so as to enable the voltage of the battery to be matched with the current temperature;
the mobile terminal comprises a first switch element, a second switch element, a third switch element, a fourth switch element, a fifth switch element and a sixth switch element;
a fifth switching element and a sixth switching element form a power supply system of the mobile terminal, the drains of the fifth switching element and the sixth switching element are electrically connected with a processor of the mobile terminal, and the gates and the sources of the fifth switching element and the sixth switching element are connected in series between a power supply contact of a USB interface of the mobile terminal and a battery of the mobile terminal; the first switch element, the second switch element, the third switch element and the fourth switch element form a charging system of the mobile terminal, and drains of the first switch element, the second switch element, the third switch element and the fourth switch element are all electrically connected with a processor of the mobile terminal; the processor may control the first, second, third, and fourth, fifth, and sixth switching elements to be turned off or on;
when the current voltage monitored by the processor is greater than the target voltage threshold value, controlling the first switching element, the fifth switching element and the sixth switching element to be turned off, and controlling the fourth switching element to be turned on, so that a charger stops supplying power to a system power supply of the mobile terminal, and the battery supplies power to the system power supply of the mobile terminal through the fourth switching element;
when the current voltage monitored by the processor is smaller than the target voltage threshold, controlling a first switching element and a fourth switching element to be switched on, supplying power to a system power supply of the mobile terminal by the current of the charger through the first switching element to the second switching element or supplying power to the system power supply of the mobile terminal by the current of the charger through the first switching element to the third switching element, and supplying power to the battery by the current of the charger through the first switching element, the second switching element to the fourth switching element or supplying power to the battery by the current of the charger through the first switching element, the third switching element to the fourth switching element; or when the current voltage monitored by the processor is smaller than the target voltage threshold, controlling a fourth switching element, a fifth switching element and a sixth switching element to be switched on, wherein the current of the charger supplies power to the battery through the fifth switching element to the sixth switching element, and simultaneously supplies power to a system power supply of the mobile terminal through the fifth switching element to the sixth switching element and then to the fourth switching element;
when the current voltage monitored by the processor is equal to the target voltage threshold value, the first switch element is controlled to be switched on, the fourth switch element is controlled to be switched off, the current of the charger can supply power to the system power supply of the mobile terminal through the first switch element to the second switch element or supply power to the system power supply of the mobile terminal through the first switch element to the third switch element, and the battery stops supplying power to the system power supply of the mobile terminal.
7. The apparatus of claim 6, wherein the adjustment module comprises:
the first adjusting submodule is used for discharging the battery to reduce the voltage of the battery when the monitored current voltage is greater than the target voltage threshold;
and the second adjusting submodule is used for charging the battery to enable the voltage of the battery to be increased when the monitored current voltage is smaller than the target voltage threshold.
8. The device according to claim 7, wherein the mobile terminal is electrically connected to a charger, and the first adjusting submodule controls the battery to supply power to the mobile terminal and controls the charger to stop supplying power to the mobile terminal, so as to discharge the battery.
9. The device of claim 7, wherein the mobile terminal is electrically connected to a charger, and the second adjusting submodule controls the charger to supply power to the mobile terminal and controls the charger to charge the battery, so as to charge the battery.
10. The apparatus of claim 8 or 9, wherein the adjustment module further comprises:
and the third adjusting submodule is used for controlling the charger to supply power to the mobile terminal and controlling the battery to stop supplying power to the mobile terminal when the monitored current voltage is equal to the target voltage threshold value, so that the battery maintains the current voltage.
11. A mobile terminal comprising a memory, a processor, a battery, and the battery voltage adjustment apparatus of any one of claims 6-10, the battery voltage adjustment apparatus being stored in the memory and configured to be controlled to be executed by the processor to achieve adjustment of the voltage of the battery.
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| CN201810186314.3A CN108417919B (en) | 2018-03-07 | 2018-03-07 | Battery voltage adjusting method and device and mobile terminal |
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| CN111129626B (en) * | 2018-10-30 | 2021-10-22 | 宏碁股份有限公司 | Low-voltage threshold adjusting method |
| CN111834675B (en) * | 2019-04-15 | 2022-02-22 | 东莞新能安科技有限公司 | Battery charging/discharging management method, electronic device, and storage medium |
| CN112305941A (en) * | 2019-07-30 | 2021-02-02 | 苏州科瓴精密机械科技有限公司 | Machine control method |
| CN111864857B (en) * | 2020-08-10 | 2022-05-06 | 北京小米移动软件有限公司 | Battery charging method, device and medium |
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| CN201097308Y (en) * | 2007-10-30 | 2008-08-06 | 李全忠 | Intelligent 3-in-1 computer power |
| CN101222148A (en) * | 2008-01-25 | 2008-07-16 | 华为技术有限公司 | Power supplying method and device of uninterrupted power supply |
| CN101403941A (en) * | 2008-11-05 | 2009-04-08 | 东莞市金翔电器设备有限公司 | Intelligent computer uninterruptable power supply method |
| CN102004538B (en) * | 2009-08-31 | 2014-03-26 | 鸿富锦精密工业（深圳）有限公司 | Notebook computer power supply circuit |
| CN102904325B (en) * | 2012-10-31 | 2014-12-24 | 小米科技有限责任公司 | Integrated charger of mobile terminal and method for charging mobile terminal |
| CN103365391A (en) * | 2013-06-28 | 2013-10-23 | 东莞新能源科技有限公司 | Notebook battery management device and method thereof |
| CN103985917B (en) * | 2014-06-09 | 2017-05-10 | 河南顺之航能源科技有限公司 | Low-temperature charging and discharging method for lithium battery |
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