WO2017092226A1 - 一种充电电流调节方法及移动终端 - Google Patents

一种充电电流调节方法及移动终端 Download PDF

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Publication number
WO2017092226A1
WO2017092226A1 PCT/CN2016/080818 CN2016080818W WO2017092226A1 WO 2017092226 A1 WO2017092226 A1 WO 2017092226A1 CN 2016080818 W CN2016080818 W CN 2016080818W WO 2017092226 A1 WO2017092226 A1 WO 2017092226A1
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WIPO (PCT)
Prior art keywords
current
mobile terminal
charging
voltage
input
Prior art date
Application number
PCT/CN2016/080818
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English (en)
French (fr)
Inventor
邓南巍
Original Assignee
广东欧珀移动通信有限公司
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Publication date
Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to US15/554,596 priority Critical patent/US20180040925A1/en
Publication of WO2017092226A1 publication Critical patent/WO2017092226A1/zh
Priority to US15/975,293 priority patent/US20180261891A1/en

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Classifications

    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
    • 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

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a charging current adjustment method and a mobile terminal.
  • Embodiments of the present invention provide a charging current adjustment method and a mobile terminal, which can improve charging efficiency.
  • a first aspect of the embodiments of the present invention provides a charging current adjustment method, including:
  • the method further includes: before collecting the current input voltage of the mobile terminal, the current battery voltage, and the current system load current of the mobile terminal, the method further includes :
  • the current input current of the mobile terminal is set, the current input current being less than or equal to the maximum output current allowed by the charging device.
  • the method further includes: after the input current of the mobile terminal is set, the method further includes :
  • the method further includes:
  • the method further includes:
  • a second aspect of the embodiments of the present invention provides a mobile terminal, including:
  • a collecting unit configured to collect a current input voltage of the mobile terminal, a current battery voltage, and a current system load current of the mobile terminal when charging the mobile terminal by using the charging device;
  • a calculating unit configured to calculate a current charging current according to a current input power, a current system load power, and the current battery voltage, wherein the current input power is a product of the input current and the current input voltage, the current system The load power is a product of the current battery voltage and the current system load current;
  • An adjusting unit configured to: when the current battery voltage is less than a charging cutoff voltage and the current charging power The current input current is increased when the current is less than the preset current and the current input current of the mobile terminal is less than the maximum output current allowed by the charging device.
  • the mobile terminal further includes:
  • a setting unit configured to set a current input current of the mobile terminal, the current input current being less than or equal to a maximum output current allowed by the charging device.
  • the adjusting unit is further configured to: when the current battery voltage is less than When the charging cutoff voltage is greater than or equal to the preset current, lowering the current input current, triggering the collecting unit to collect a current input voltage of the mobile terminal, a current battery voltage, and the Current load current of the mobile terminal.
  • the collecting unit is further configured to: when the current battery voltage is less than the charging cutoff voltage, When the current charging current is less than the preset current, and the current input current is equal to the maximum output current, the current input voltage of the mobile terminal, the current battery voltage, and the current load current of the mobile terminal are continuously collected.
  • the mobile terminal further includes:
  • a determining unit configured to determine that the charging is completed when the current battery voltage is greater than or equal to the charging cutoff voltage.
  • a third aspect of the embodiments of the present invention provides a mobile terminal, including a processor and a memory, where the memory is used to store an instruction, and the processor calls an instruction stored in the memory to perform the following operations:
  • the processing before the processor collects a current input voltage of the mobile terminal, a current battery voltage, and a current system load current of the mobile terminal, the processing Also used to:
  • the current input current of the mobile terminal is set, the current input current being less than or equal to the maximum output current allowed by the charging device.
  • the processor is further configured to:
  • the processor is further configured to:
  • a computer readable storage medium storing one or more computer programs, the mobile terminal being executed by running the one or more computer programs
  • the charging current adjustment method of the above first aspect will not be described again.
  • the current input voltage of the mobile terminal, the current battery voltage, and the current system load current of the mobile terminal are collected; Calculating the current charging current according to the current input power, the current system load power, and the current battery voltage, wherein the current input power is the product of the input current and the current input voltage, and the current system load power is the product of the current battery voltage and the current system load current;
  • the current input current is increased.
  • the charging current can be adjusted according to the system load, and the output power of the charging device is maximized under the premise of balancing the battery charging power and the system load power, thereby saving the battery charging time and improving the charging efficiency.
  • FIG. 1 is a flow chart of a charging current adjustment method according to an embodiment of the present invention.
  • FIG. 2 is a flow chart of another charging current adjustment method according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of another mobile terminal according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of still another mobile terminal according to an embodiment of the present invention.
  • Embodiments of the present invention provide a charging current adjustment method and a mobile terminal, which can improve charging efficiency. The details are described below separately.
  • FIG. 1 is a flowchart of a charging current adjustment method according to an embodiment of the present invention. As shown in FIG. 1, the charging current adjustment method described in this embodiment includes the steps of:
  • the current input voltage of the mobile terminal can be collected by the charging chip in the mobile terminal, and the current input voltage of the mobile terminal is the input collected by the charging chip on the printed circuit board (PCB) of the mobile terminal.
  • Voltage the current battery voltage is the current voltage of the battery terminal collected by the charging chip
  • the current system load current of the mobile terminal is the current generated by the operation of the mobile terminal system.
  • the current input power of the mobile terminal is the sum of the current system load power and the current battery charging power
  • the current system load power is the power consumed by the mobile terminal in addition to the battery charging when charging. Power consumption generated by background applications, etc.
  • the current input power is a product of an input current and a current input voltage
  • the current system load power is a product of a current battery voltage and a current system load current.
  • the voltage Vchg output by the charging device passes through the transmission loss (for example, the voltage loss generated by the USB data line) to reach the current input voltage Vpcb that the mobile terminal becomes moving, and the charging is performed.
  • the current output current Ichg of the device is the current input current of the mobile terminal
  • the current system load power P3 is the current battery voltage Vbat and the current system.
  • the current charging current Ibat can be calculated based on the current input power P2, the current system load power P3, and the current battery voltage Vbat.
  • the current input is increased. Into the current.
  • the charging cut-off voltage is the voltage for stopping charging.
  • the battery voltage gradually rises.
  • the battery charge cutoff voltage of different cells is different.
  • the charge cutoff voltage is generally between 4.2V and 4.5V.
  • the charging device can be a power adapter or a USB power supply for a terminal device such as a computer.
  • the output power of the power adapter can be 10 to 12 W
  • the output voltage can be 5 to 24 V
  • the output current can be 0.5 to 2 A.
  • the output power of the power supply is generally 0.5W to 2.5W, the output voltage is generally 5V, and the output current is generally 0.1A to 0.5A.
  • the preset current is the maximum charging current of the battery. For example, the maximum charging current of a certain lithium battery is 1A. When the battery is charged at the maximum charging current, the charging efficiency is the highest. When the charging current of the battery exceeds the maximum charging current, the battery may be affected. life. When the current battery voltage is less than the charge cutoff voltage and the current charging current is less than the preset current, and the current input current of the mobile terminal is less than the maximum output current allowed by the charging device, the current input current is increased.
  • the current battery voltage is less than the charge cut-off voltage, that is, the battery is not full; the current charging current is less than the preset current, that is, the battery charging efficiency does not reach the highest, and the current input current of the mobile terminal is less than the maximum output current allowed by the charging device, that is, the output power of the charging device. If the maximum input current is not reached, the output power of the charging device can be increased by increasing the current input current.
  • the charging current can be adjusted according to the system load, and the output power of the charging device is maximized under the premise of balancing the battery charging power and the system load power, thereby saving the battery charging time and improving the charging efficiency.
  • the current battery voltage is less than the charging cutoff voltage and the current charging current is less than the preset current
  • the current input current is equal to the maximum output current
  • the current battery voltage is less than the charge cut-off voltage, that is, the battery is not full
  • the current charging current is less than the preset current, that is, the battery is not charged with the maximum charging current
  • the battery charging efficiency does not reach the maximum
  • the current input current is equal to the maximum output current, that is, the output of the charging device.
  • the power has reached the maximum.
  • step 101 is continued to continue detecting and calculating the charging current of the battery.
  • the current battery voltage when the current battery voltage is greater than or equal to the charge cutoff voltage, it indicates that the battery is full, it is determined that the charging is completed, and the charging is ended.
  • the charging device when the charging device is used to charge the mobile terminal, the current input voltage of the mobile terminal, the current battery voltage, and the current system load current of the mobile terminal are collected; and the current input power, the current system load power, and the current battery voltage are calculated.
  • the current input power is the product of the input current and the current input voltage
  • the current system load power is the product of the current battery voltage and the current system load current
  • the charging current can be adjusted according to the system load, and the output power of the charging device is maximized under the premise of balancing the battery charging power and the system load power, thereby saving the battery charging time and improving the charging efficiency.
  • FIG. 2 is a flowchart of another charging current adjustment method according to an embodiment of the present invention. As shown in FIG. 2, the charging current adjustment method described in this embodiment includes the steps of:
  • the current input current of the mobile terminal is set to be less than or equal to the maximum output current allowed by the charging device.
  • the charging device does not output the maximum power.
  • the battery charging current is not too large, which can protect the battery.
  • the charging device outputs at maximum power, which can maximize the output power of the charging device. Improve the charging efficiency of the battery.
  • the current input power is a product of an input current and a current input voltage
  • the current system load power is a product of a current battery voltage and a current system load current.
  • the current input is increased. Into the current.
  • the current input current when the current battery voltage is less than the charge cutoff voltage and the current charging current is greater than or equal to the preset current, the current input current is turned down.
  • the current battery voltage is less than the charge cut-off voltage, that is, the battery is not full
  • the current charging current is greater than or equal to the preset current, that is, the charging current of the battery has reached or exceeded the maximum charging current, indicating that the charging device output power is too large
  • the adjustment Low current input current lowering the output power of the charging device.
  • steps 202 to 204 of the embodiment of the present invention reference may be made to the steps 101 to 103 of FIG. 1 , and the step 306 may be referred to the step 104 shown in FIG. 1 .
  • the current input current of the mobile terminal is set, and the current input current is less than or equal to the maximum output current allowed by the charging device; the current input voltage of the mobile terminal, the current battery voltage, and the current battery voltage are collected.
  • the current system load current of the mobile terminal is calculated according to the current input power, the current system load power, and the current battery voltage, wherein the current input power is the product of the input current and the current input voltage, and the current system load power is the current battery voltage and Current product load current; when the current battery voltage is less than the charge cut-off voltage and the current charging current is less than the preset current, and the current input current of the mobile terminal is less than the maximum output current allowed by the charging device, the current input current is increased; When the battery voltage is less than the charge cut-off voltage and the current charging current is greater than or equal to the preset current, the current input current is turned down, and the current input voltage of the mobile terminal, the current battery voltage, and the current system load current of the mobile terminal are continuously collected; When the battery voltage is greater than or equal to the former charge cutoff voltage, the charging is completed is determined.
  • the input current of the mobile terminal can be adjusted by the magnitude of the charging current, and the output power of the charging device can be maximize
  • FIG. 3 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
  • the mobile terminal described in this embodiment includes an acquisition unit 301, a calculation unit 302, an adjustment unit 303, and a determination unit 304, where:
  • the collecting unit 301 is configured to collect a current input voltage of the mobile terminal, a current battery voltage, and a current system load current of the mobile terminal when the mobile terminal is used to charge the mobile terminal.
  • the collecting unit 301 can collect the current input voltage of the mobile terminal through the charging chip in the mobile terminal, and the current input voltage of the mobile terminal is collected by the charging chip on the printed circuit board (PCB) of the mobile terminal.
  • the input voltage to the current battery voltage is the current voltage of the battery terminal collected by the charging chip
  • the current system load current of the mobile terminal is the current generated by the operation of the mobile terminal system.
  • the current input power of the mobile terminal is the sum of the current system load power and the current battery charging power
  • the current system load power is the power consumed by the mobile terminal in addition to the battery charging when charging. Power consumption generated by background applications, etc.
  • the collecting unit 301 is further configured to: when the current battery voltage is less than the charging cutoff voltage and the current charging current is less than the preset current, and the current input current is equal to the maximum output current, continue to collect the current input voltage of the mobile terminal, the current battery voltage, and the mobile terminal. Current load current.
  • the collecting unit 301 collects the current input voltage, the current battery voltage, and the mobile terminal of the mobile terminal.
  • the current battery voltage is less than the charge cut-off voltage, that is, the battery is not full
  • the current charging current is less than the preset current, that is, the battery is not charged with the maximum charging current, the battery charging efficiency does not reach the maximum
  • the current input current is equal to the maximum output current, that is, the output of the charging device.
  • the power has reached the maximum.
  • the collecting unit 301 continues to collect the current input voltage of the mobile terminal, the current battery voltage, and the current load current of the mobile terminal.
  • the calculating unit 302 is configured to calculate a current charging current according to the current input power, the current system load power, and the current battery voltage, where the current input power is a product of the input current and the current input voltage, and the current system load power is the current battery voltage and the current system. The product of the load current.
  • the voltage Vchg output by the charging device passes through the transmission loss (for example, the voltage loss generated by the USB data line) to reach the current input voltage Vpcb that the mobile terminal becomes moving, and the charging is performed.
  • the current output current Ichg of the device is the current input current of the mobile terminal
  • the sum of the charging powers, that is, the battery charging power P4 P2 - P3.
  • the calculating unit 302 can calculate the current charging current Ibat according to the current input power P1, the current system load power P3, and the current battery voltage Vbat.
  • the current charging current Ibat can be calculated based on the current input power P2, the current system load power P3, and the current battery voltage Vbat.
  • the adjusting unit 303 is configured to increase the current input current when the current battery voltage is less than the charging cutoff voltage and the current charging current is less than the preset current, and the current input current of the mobile terminal is less than the maximum output current allowed by the charging device.
  • the charging cut-off voltage is the voltage for stopping charging.
  • the battery voltage gradually rises.
  • the battery charge cutoff voltage of different cells is different.
  • the charge cutoff voltage is generally between 4.2V and 4.5V.
  • the charging device can be a power adapter or a USB power supply for a terminal device such as a computer.
  • the output power of the power adapter can be 10 to 12 W
  • the output voltage can be 5 to 24 V
  • the output current can be 0.5 to 2 A.
  • the output power of the power supply is generally 0.5W to 2.5W, the output voltage is generally 5V, and the output current is generally 0.1A to 0.5A.
  • the preset current is the maximum charging current of the battery. For example, the maximum charging current of a certain lithium battery is 1A. When the battery is charged at the maximum charging current, the charging efficiency is the highest. When the charging current of the battery exceeds the maximum charging current, the battery may be affected. life. When the current battery voltage is less than the charge cutoff voltage and the current charging current is less than the preset current, and the current input current of the mobile terminal is less than the maximum output current allowed by the charging device, the adjusting unit 303 increases the current input current.
  • the current battery voltage is less than the charge cut-off voltage, that is, the battery is not full; the current charging current is less than the preset current, that is, the battery charging efficiency does not reach the highest, and the current input current of the mobile terminal is less than the maximum output current allowed by the charging device, that is, the output power of the charging device. The maximum is not reached.
  • the adjusting unit 303 increases the current input current to increase the output power of the charging device.
  • the determining unit 304 is configured to determine that the charging is completed when the current battery voltage is greater than or equal to the charging cutoff voltage.
  • the determining unit 304 determines that the charging is completed, and ends the charging.
  • the collecting unit 301 collects the current input voltage of the mobile terminal, the current battery voltage, and the current system load current of the mobile terminal; the calculating unit 302 is based on the current input power and the current system load.
  • the current charging current is calculated by the power and the current battery voltage, wherein the current input power is the product of the input current and the current input voltage, and the current system load power is the product of the current battery voltage and the current system load current; when the current battery voltage is less than the charging cutoff voltage and When the current charging current is less than the preset current, and the current input current of the mobile terminal is less than the maximum output current allowed by the charging device, the adjusting unit 303 increases the current input current; when the current battery voltage is greater than or equal to the charging cutoff voltage, the determining unit 304 Make sure the charging is complete.
  • the charging current can be adjusted according to the system load, and the output power of the charging device is maximized under the premise of balancing the battery charging power and the system load power, thereby saving the battery charging time and improving the charging efficiency.
  • FIG. 4 is a schematic structural diagram of another mobile terminal according to an embodiment of the present invention.
  • the mobile terminal described in this embodiment includes a setting unit 305 in addition to the collecting unit 301, the calculating unit 302, the adjusting unit 303, and the determining unit 304 shown in FIG.
  • the setting unit 305 is configured to set a current input current of the mobile terminal, and the current input current is less than or equal to a maximum output current allowed by the charging device.
  • the setting unit 305 sets the current input current of the mobile terminal to be less than or equal to the maximum output current allowed by the charging device.
  • the charging device does not Maximum power output, when the system load power is small, the battery charging current will not be too large, which can protect the battery.
  • the charging device outputs at maximum power, which can maximize the charging device. Output power to improve battery charging efficiency.
  • the adjusting unit 303 is further configured to: when the current battery voltage is less than the charging cutoff voltage and the current charging current is greater than or equal to the preset current, lower the current input current, and trigger the collecting unit 301 to collect the current input voltage, the current battery voltage, and the mobile terminal of the mobile terminal.
  • the current load current of the terminal is further configured to: when the current battery voltage is less than the charging cutoff voltage and the current charging current is greater than or equal to the preset current, lower the current input current, and trigger the collecting unit 301 to collect the current input voltage, the current battery voltage, and the mobile terminal of the mobile terminal.
  • the current load current of the terminal is further configured to: when the current battery voltage is less than the charging cutoff voltage and the current charging current is greater than or equal to the preset current, lower the current input current, and trigger the collecting unit 301 to collect the current input voltage, the current battery voltage, and the mobile terminal of the mobile terminal. The current load current of the terminal.
  • the adjusting unit 303 when the current battery voltage is less than the charge cutoff voltage and the current charging current is greater than When the current is equal to or equal to the preset current, the adjusting unit 303 lowers the current input current.
  • the current battery voltage is less than the charge cut-off voltage, that is, the battery is not full
  • the current charging current is greater than or equal to the preset current, that is, the charging current of the battery has reached or exceeded the maximum charging current, indicating that the charging device output power is too large
  • the adjusting unit 303 then lowers the current input current and lowers the output power of the charging device.
  • the setting unit 305 sets the current input current of the mobile terminal, and the current input current is less than or equal to the maximum output current allowed by the charging device; the collecting unit 301 collects the current input of the mobile terminal.
  • the calculation unit 302 calculates a current charging current according to the current input power, the current system load power, and the current battery voltage, wherein the current input power is a product of the input current and the current input voltage,
  • the current system load power is the product of the current battery voltage and the current system load current; when the current battery voltage is less than the charge cutoff voltage and the current charging current is less than the preset current, and the current input current of the mobile terminal is less than the maximum output current allowed by the charging device
  • the adjusting unit 303 increases the current input current; when the current battery voltage is less than the charging cutoff voltage and the current charging current is greater than or equal to the preset current, the adjusting unit 303 lowers the current input current and continues to collect the current input power of the mobile terminal.
  • the input current of the mobile terminal can be adjusted by the magnitude of the charging current, and the output power of the charging device can be maximized under the protection of the battery, the battery charging time can be saved, and the charging efficiency can be improved.
  • FIG. 5 is a schematic structural diagram of still another mobile terminal according to an embodiment of the present invention.
  • the mobile terminal includes a memory 501 and a processor 502.
  • the number of processors 502 may be one or more.
  • a processor is taken as an example.
  • the memory 501 and the processor 502 may be connected by a bus or other means, wherein the bus connection is taken as an example in FIG.
  • the memory 501 is for storing instructions
  • the processor 502 calls the instructions stored in the memory 501 to perform the following operations:
  • the current input current is increased.
  • the processor 502 before the processor 502 collects the current input voltage of the mobile terminal, the current battery voltage, and the current system load current of the mobile terminal, the processor 502 is further configured to:
  • the current input current is less than or equal to the maximum output current allowed by the charging device.
  • the processor 502 is further configured to:
  • the current input current is turned down, and the steps of collecting the current input voltage of the mobile terminal, the current battery voltage, and the current load current of the mobile terminal are continuously performed.
  • processor 502 is further configured to:
  • the steps of collecting the current input voltage of the mobile terminal, the current battery voltage, and the current load current of the mobile terminal are continuously performed. .
  • processor 502 is further configured to:
  • the output power of the charging device can be maximized in the case of protecting the battery, the battery charging time can be saved, and the charging efficiency can be improved.
  • the program may be stored in a computer readable storage medium, and the storage medium may include: Flash disk, Read-Only Memory (ROM), Random Access Memory (RAM), disk or optical disk.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

一种充电电流调节方法及移动终端，该方法包括：使用充电装置对移动终端进行充电时，采集移动终端的当前输入电压、当前电池电压以及移动终端的当前系统负载电流；根据当前输入功率、当前系统负载功率和当前电池电压计算当前充电电流，其中，当前输入功率为输入电流和当前输入电压之积，当前系统负载功率为当前电池电压与当前系统负载电流之积；当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且移动终端的当前输入电流小于充电装置允许的最大输出电流时，调大当前输入电流。采用该充电电流调节方法及移动终端，可以提高充电效率。

Description

一种充电电流调节方法及移动终端
本发明要求2015年12月3日递交的发明名称为“一种充电电流调节方法及移动终端”的申请号201510884650.1的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及通信技术领域，具体涉及一种充电电流调节方法及移动终端。
背景技术
目前，移动终端往往要适配不同的充电装置，不同的充电装置的输出功率往往不同，在对移动终端进行充电时，为了防止移动终端总负载功率(电池充电功率和移动终端系统负载功率)过大导致无法匹配充电装置的输出功率的问题，移动终端往往采用小电流进行充电。然而，小电流充电会导致移动终端的充电时间较长，充电效率较低。
发明内容
本发明实施例提供一种充电电流调节方法及移动终端，可以提高充电效率。
本发明实施例第一方面，提供了一种充电电流调节方法，包括：
使用充电装置对移动终端进行充电时，采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前系统负载电流；
根据当前输入功率、当前系统负载功率和所述当前电池电压计算当前充电电流，其中，所述当前输入功率为所述输入电流和所述当前输入电压之积，所述当前系统负载功率为所述当前电池电压与所述当前系统负载电流之积；
当所述当前电池电压小于充电截止电压且所述当前充电电流小于预设电流时，且所述移动终端的当前输入电流小于所述充电装置允许的最大输出电流时，调大所述当前输入电流。
在本发明实施例第一方面的第一种可能的实现方式中，所述采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前系统负载电流之前，所述方法还包括：
设置移动终端的当前输入电流，所述当前输入电流小于或等于充电装置允许的最大输出电流。
结合本发明实施例第一方面的第一种可能的实现方式，在本发明实施例第一方面的第二种可能的实现方式中，所述设置移动终端的输入电流之后，所述方法还包括：
当所述当前电池电压小于所述充电截止电压且所述当前充电电流大于或等于所述预设电流时，调低所述当前输入电流，继续执行所述采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前负载电流的步骤。
结合本发明实施例第一方面，在本发明实施例第一方面的第三种可能的实现方式中，所述方法还包括：
当所述当前电池电压小于所述充电截止电压且所述当前充电电流小于所述预设电流时，且所述当前输入电流等于所述最大输出电流时，继续执行所述采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前负载电流的步骤。
结合本发明实施例第一方面或本发明实施例第一方面的第一种至第三种中任一种可能的实现方式，在本发明实施例第一方面的第四种可能的实现方式中，所述调大所述当前输入电流之后，所述方法还包括：
当所述当前电池电压大于或等于所述充电截止电压时，确定充电完成。
本发明实施例第二方面，提供了一种移动终端，包括：
采集单元，用于当使用充电装置对移动终端进行充电时，采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前系统负载电流；
计算单元，用于根据当前输入功率、当前系统负载功率和所述当前电池电压计算当前充电电流，其中，所述当前输入功率为所述输入电流和所述当前输入电压之积，所述当前系统负载功率为所述当前电池电压与所述当前系统负载电流之积；
调整单元，用于当所述当前电池电压小于充电截止电压且所述当前充电电 流小于预设电流时，且所述移动终端的当前输入电流小于所述充电装置允许的最大输出电流时，调大所述当前输入电流。
在本发明实施例第二方面的第一种可能的实现方式中，所述移动终端还包括：
设置单元，用于设置移动终端的当前输入电流，所述当前输入电流小于或等于充电装置允许的最大输出电流。
结合本发明实施例第二方面的第一种可能的实现方式，在本发明实施例第二方面的第二种可能的实现方式中，所述调整单元，还用于当所述当前电池电压小于所述充电截止电压且所述当前充电电流大于或等于所述预设电流时，调低所述当前输入电流，触发所述采集单元采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前负载电流。
结合本发明实施例第二方面，在本发明实施例第二方面的第三种可能的实现方式中，所述采集单元，还用于当所述当前电池电压小于所述充电截止电压且所述当前充电电流小于所述预设电流时，且所述当前输入电流等于所述最大输出电流时，继续采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前负载电流。
结合本发明实施例第二方面或本发明实施例第二方面的第一种至第三种中任一种可能的实现方式，在本发明实施例第二方面的第四种可能的实现方式中，所述移动终端还包括：
确定单元，用于当所述当前电池电压大于或等于所述充电截止电压时，确定充电完成。
本发明实施例第三方面，提供了一种移动终端，包括处理器和存储器，所述存储器用于存储指令；所述处理器调用存储在所述存储器中的指令执行如下操作：
使用充电装置对移动终端进行充电时，采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前系统负载电流；
根据当前输入功率、当前系统负载功率和所述当前电池电压计算当前充电电流，其中，所述当前输入功率为所述输入电流和所述当前输入电压之积，所述当前系统负载功率为所述当前电池电压与所述当前系统负载电流之积；
当所述当前电池电压小于充电截止电压且所述当前充电电流小于预设电流时，且所述移动终端的当前输入电流小于所述充电装置允许的最大输出电流时，调大所述当前输入电流。
在本发明实施例第三方面的第一种可能的实现方式中，所述处理器采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前系统负载电流之前，所述处理器还用于：
设置移动终端的当前输入电流，所述当前输入电流小于或等于充电装置允许的最大输出电流。
结合本发明实施例第三方面的第一种可能的实现方式，在本发明实施例第三方面的第二种可能的实现方式中，所述处理器设置移动终端的输入电流之后，所述处理器还用于：
当所述当前电池电压小于所述充电截止电压且所述当前充电电流大于或等于所述预设电流时，调低所述当前输入电流，继续执行所述采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前负载电流的步骤。
结合本发明实施例第三方面，在本发明实施例第三方面的第三种可能的实现方式中，所述处理器还用于：
当所述当前电池电压小于所述充电截止电压且所述当前充电电流小于所述预设电流时，且所述当前输入电流等于所述最大输出电流时，继续执行所述采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前负载电流的步骤。
结合本发明实施例第三方面或本发明实施例第三方面的第一种至第三种中任一种可能的实现方式，在本发明实施例第三方面的第四种可能的实现方式中，所述处理器还用于：
当所述当前电池电压大于或等于所述充电截止电压时，确定充电完成。
本发明实施例第四方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储有一个或多个计算机程序，所述移动终端通过运行所述一个或多个计算机程序来执行上述第一方面的充电电流调节方法，重复之处不再赘述。本发明实施例中，移动终端使用充电装置对移动终端进行充电时，采集移动终端的当前输入电压、当前电池电压以及移动终端的当前系统负载电流；根 据当前输入功率、当前系统负载功率和当前电池电压计算当前充电电流，其中，当前输入功率为输入电流和当前输入电压之积，当前系统负载功率为当前电池电压与当前系统负载电流之积；当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且移动终端的当前输入电流小于充电装置允许的最大输出电流时，调大当前输入电流。实施本发明实施例，可以根据系统负载调整充电电流，在平衡电池充电功率和系统负载功率的前提下，最大化充电装置的输出功率，节省电池充电时间，提高充电效率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例公开的一种充电电流调节方法的流程图；
图2是本发明实施例公开的另一种充电电流调节方法的流程图；
图3是本发明实施例公开的一种移动终端的结构示意图；
图4是本发明实施例公开的另一种移动终端的结构示意图；
图5是本发明实施例公开的又一种移动终端的结构示意图。
具体实施方式
下面将结合本发明实施方式中的附图，对本发明实施方式中的技术方案进行清楚、完整地描述。显然，所描述的实施方式是本发明的一部分实施方式，而不是全部实施方式。基于本发明中的实施方式，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施方式，都应属于本发明保护的范围。
本发明实施例提供一种充电电流调节方法及移动终端，可以提高充电效率。以下分别进行详细说明。
请参阅图1，图1是本发明实施例公开的一种充电电流调节方法的流程图。如图1所示，本实施例中所描述的充电电流调节方法，包括步骤：
101，使用充电装置对移动终端进行充电时，采集移动终端的当前输入电压、当前电池电压以及移动终端的当前系统负载电流。
本发明实施例中，可以通过移动终端中的充电芯片采集移动终端的当前输入电压，移动终端的当前输入电压为充电芯片在移动终端的印制线路板(Printed Circuit Board，PCB)采集到的输入电压，当前电池电压为充电芯片采集的电池端的当前电压，移动终端的当前系统负载电流为移动终端系统运行产生的电流。使用充电装置对移动终端进行充电时，移动终端的当前输入功率为当前系统负载功率和与当前电池充电功率之和，当前系统负载功率为充电时移动终端除电池充电消耗的功率外系统由于系统运行、后台应用等产生的功耗。
102，根据当前输入功率、当前系统负载功率和当前电池电压计算当前充电电流，其中，当前输入功率为输入电流和当前输入电压之积，当前系统负载功率为当前电池电压与当前系统负载电流之积。
本发明实施例中，使用充电装置对移动终端进行充电时，充电装置输出的电压Vchg经过传输损耗(例如，USB数据线产生的电压损耗)达到移动终端变为移动中的当前输入电压Vpcb，充电装置当前输出的电流Ichg即为移动终端的当前输入电流，充电装置的当前输出的功率P1为充电装置输出的电压Vchg与当前输出的电流Ichg之积，P1＝Vchg×Ichg，移动终端的当前输入功率为P2为当前输入电压Vpcb与当前输入电流Ichg之积，P2＝Vpcb×Ichg，若采集到当前电池电压Vbat，当前系统负载电流Idev，则当前系统负载功率P3为当前电池电压Vbat与当前系统负载电流Idev之积，P3＝Vbat×Idev，由于移动终端的当前输入功率为当前系统负载功率和电池充电功率之和，即电池充电功率P4＝P2-P3。可以根据当前输入功率P1、当前系统负载功率P3和当前电池电压Vbat计算当前充电电流Ibat，由于电池充电功率P4为当前电池电压Vbat与当前充电电流Ibat之积，P4＝Vbat×Ibat，因此，Ibat＝P4/Vbat＝(Vpcb×Ichg-Vbat×Idev)/Vbat。可以根据当前输入功率P2、当前系统负载功率P3和当前电池电压Vbat计算当前充电电流Ibat。
103，当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且移动终端的当前输入电流小于充电装置允许的最大输出电流时，调大当前输 入电流。
本发明实施例中，充电截止电压为停止充电的电压，在充电过程中，随着充电时间的增加，电池电压逐渐上升，当电池电压达到充电截止电压时，电池充电完毕，停止对电池进行充电，根据电池电芯材料的不同，不同电芯的电池充电截止电压不同，例如，对锂电池而言，充电截止电压一般为4.2V～4.5V之间。充电装置可以是电源适配器，也可以为电脑等终端设备的USB电源，一般而言，电源适配器的输出功率可以为10～12W，输出电压可以为5～24V，输出电流可以为0.5～2A，USB电源的输出功率一般为0.5W～2.5W，输出电压一般为5V，输出电流一般为0.1A～0.5A。预设电流为电池的最大充电电流，例如，某一锂电池的最大充电电流为1A，电池以最大充电电流充电时，充电效率最高，当电池的充电电流超过该最大充电电流，可能会影响电池寿命。当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且移动终端的当前输入电流小于充电装置允许的最大输出电流时，调大当前输入电流。当前电池电压小于充电截止电压，即电池未充满；当前充电电流小于预设电流，即电池充电效率未达到最高，移动终端的当前输入电流小于充电装置允许的最大输出电流，即充电装置的输出功率未达到最大，此时，调大当前输入电流，即可调大充电装置的输出功率。实施本发明实施例，可以根据系统负载调整充电电流，在平衡电池充电功率和系统负载功率的前提下，最大化充电装置的输出功率，节省电池充电时间，提高充电效率。
104，当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且当前输入电流等于最大输出电流时，继续执行步骤101。
本发明实施例中，当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且当前输入电流等于最大输出电流时，采集移动终端的当前输入电压、当前电池电压以及移动终端的当前系统负载电流。当前电池电压小于充电截止电压，即电池未充满，当前充电电流小于预设电流，即电池未以最大充电电流充电，电池充电效率未达到最大，当前输入电流等于最大输出电流，即充电装置的输出功率已经达到最大，此时，继续执行步骤101，继续侦测并计算电池的充电电流。
105，当当前电池电压大于或等于充电截止电压时，确定充电完成。
本发明实施例中，当当前电池电压大于或等于充电截止电压时，表明电池已充满，确定充电完成，结束充电。
本发明实施例中，使用充电装置对移动终端进行充电时，采集移动终端的当前输入电压、当前电池电压以及移动终端的当前系统负载电流；根据当前输入功率、当前系统负载功率和当前电池电压计算当前充电电流，其中，当前输入功率为输入电流和当前输入电压之积，当前系统负载功率为当前电池电压与当前系统负载电流之积；当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且移动终端的当前输入电流小于充电装置允许的最大输出电流时，调大当前输入电流；当当前电池电压大于或等于充电截止电压时，确定充电完成。实施本发明实施例，可以根据系统负载调整充电电流，在平衡电池充电功率和系统负载功率的前提下，最大化充电装置的输出功率，节省电池充电时间，提高充电效率。
请参阅图2，图2是本发明实施例公开的另一种充电电流调节方法的流程图。如图2所示，本实施例中所描述的充电电流调节方法，包括步骤：
201，使用充电装置对移动终端进行充电时，设置移动终端的当前输入电流，当前输入电流小于或等于充电装置允许的最大输出电流。
本发明实施例中，使用充电装置对移动终端进行充电时，设置移动终端的当前输入电流小于或等于充电装置允许的最大输出电流，当前输入电流小于最大输出电流时，充电装置不以最大功率输出，当系统负载功率较小时，电池充电电流也不会太大，可以起到保护电池的作用，当前输入电流等于最大输出电流时，充电装置以最大功率输出，可以最大化充电装置的输出功率，提高电池的充电效率。
202，采集移动终端的当前输入电压、当前电池电压以及移动终端的当前系统负载电流。
203，根据当前输入功率、当前系统负载功率和当前电池电压计算当前充电电流，其中，当前输入功率为输入电流和当前输入电压之积，当前系统负载功率为当前电池电压与当前系统负载电流之积。
204，当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且移动终端的当前输入电流小于充电装置允许的最大输出电流时，调大当前输 入电流。
205，当当前电池电压小于充电截止电压且当前充电电流大于或等于预设电流时，调低当前输入电流，继续执行步骤202。
本发明实施例中，当当前电池电压小于充电截止电压且当前充电电流大于或等于预设电流时，调低当前输入电流。当当前电池电压小于充电截止电压，即电池未充满，当当前充电电流大于或等于预设电流时，即电池的充电电流已经达到或超过最大充电电流了，说明充电装置输出功率过大，则调低当前输入电流，调低充电装置的输出功率。实施本发明实施例，可以通过充电电流大小来调整移动终端的输入电流大小，可以在保护电池的情况下，最大化充电装置的输出功率，节省电池充电时间，提高充电效率。
206，当当前电池电压大于或等于充电截止电压时，确定充电完成。
本发明实施例中的步骤202～步骤204可以参见图1所示的步骤101～步骤103，步骤306可以参见图1所示的步骤104，本发明实施例不再赘述。
本发明实施例中，使用充电装置对移动终端进行充电时，设置移动终端的当前输入电流，当前输入电流小于或等于充电装置允许的最大输出电流；采集移动终端的当前输入电压、当前电池电压以及移动终端的当前系统负载电流；根据当前输入功率、当前系统负载功率和当前电池电压计算当前充电电流，其中，当前输入功率为输入电流和当前输入电压之积，当前系统负载功率为当前电池电压与当前系统负载电流之积；当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且移动终端的当前输入电流小于充电装置允许的最大输出电流时，调大当前输入电流；当当前电池电压小于充电截止电压且当前充电电流大于或等于预设电流时，调低当前输入电流，继续采集移动终端的当前输入电压、当前电池电压以及移动终端的当前系统负载电流；当当前电池电压大于或等于充电截止电压时，确定充电完成。实施本发明实施例，可以通过充电电流大小来调整移动终端的输入电流大小，可以在保护电池的情况下，最大化充电装置的输出功率，节省电池充电时间，提高充电效率。
请参阅图3，图3是本发明实施例公开的一种移动终端的结构示意图。如图3所示，本实施例中所描述的移动终端，包括采集单元301、计算单元302、调整单元303和确定单元304，其中：
采集单元301，用于当使用充电装置对移动终端进行充电时，采集移动终端的当前输入电压、当前电池电压以及移动终端的当前系统负载电流。
本发明实施例中，采集单元301可以通过移动终端中的充电芯片采集移动终端的当前输入电压，移动终端的当前输入电压为充电芯片在移动终端的印制线路板(Printed Circuit Board，PCB)采集到的输入电压，当前电池电压为充电芯片采集的电池端的当前电压，移动终端的当前系统负载电流为移动终端系统运行产生的电流。使用充电装置对移动终端进行充电时，移动终端的当前输入功率为当前系统负载功率和与当前电池充电功率之和，当前系统负载功率为充电时移动终端除电池充电消耗的功率外系统由于系统运行、后台应用等产生的功耗。
采集单元301，还用于当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且当前输入电流等于最大输出电流时，继续采集移动终端的当前输入电压、当前电池电压以及移动终端的当前负载电流。
本发明实施例中，当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且当前输入电流等于最大输出电流时，采集单元301采集移动终端的当前输入电压、当前电池电压以及移动终端的当前系统负载电流。当前电池电压小于充电截止电压，即电池未充满，当前充电电流小于预设电流，即电池未以最大充电电流充电，电池充电效率未达到最大，当前输入电流等于最大输出电流，即充电装置的输出功率已经达到最大，此时，采集单元301继续采集移动终端的当前输入电压、当前电池电压以及移动终端的当前负载电流。
计算单元302，用于根据当前输入功率、当前系统负载功率和当前电池电压计算当前充电电流，其中，当前输入功率为输入电流和当前输入电压之积，当前系统负载功率为当前电池电压与当前系统负载电流之积。
本发明实施例中，使用充电装置对移动终端进行充电时，充电装置输出的电压Vchg经过传输损耗(例如，USB数据线产生的电压损耗)达到移动终端变为移动中的当前输入电压Vpcb，充电装置当前输出的电流Ichg即为移动终端的当前输入电流，充电装置的当前输出的功率P1为充电装置输出的电压Vchg与当前输出的电流Ichg之积，P1＝Vchg×Ichg，移动终端的当前输入功率为P2为当前输入电压Vpcb与当前输入电流Ichg之积，P2＝Vpcb×Ichg，若采集到当前 电池电压Vbat，当前系统负载电流Idev，则当前系统负载功率P3为当前电池电压Vbat与当前系统负载电流Idev之积，P3＝Vbat×Idev，由于移动终端的当前输入功率为当前系统负载功率和电池充电功率之和，即电池充电功率P4＝P2-P3。计算单元302可以根据当前输入功率P1、当前系统负载功率P3和当前电池电压Vbat计算当前充电电流Ibat，由于电池充电功率P4为当前电池电压Vbat与当前充电电流Ibat之积，P4＝Vbat×Ibat，因此，Ibat＝P4/Vbat＝(Vpcb×Ichg-Vbat×Idev)/Vbat。可以根据当前输入功率P2、当前系统负载功率P3和当前电池电压Vbat计算当前充电电流Ibat。
调整单元303，用于当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且移动终端的当前输入电流小于充电装置允许的最大输出电流时，调大当前输入电流。
本发明实施例中，充电截止电压为停止充电的电压，在充电过程中，随着充电时间的增加，电池电压逐渐上升，当电池电压达到充电截止电压时，电池充电完毕，停止对电池进行充电，根据电池电芯材料的不同，不同电芯的电池充电截止电压不同，例如，对锂电池而言，充电截止电压一般为4.2V～4.5V之间。充电装置可以是电源适配器，也可以为电脑等终端设备的USB电源，一般而言，电源适配器的输出功率可以为10～12W，输出电压可以为5～24V，输出电流可以为0.5～2A，USB电源的输出功率一般为0.5W～2.5W，输出电压一般为5V，输出电流一般为0.1A～0.5A。预设电流为电池的最大充电电流，例如，某一锂电池的最大充电电流为1A，电池以最大充电电流充电时，充电效率最高，当电池的充电电流超过该最大充电电流，可能会影响电池寿命。当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且移动终端的当前输入电流小于充电装置允许的最大输出电流时，调整单元303调大当前输入电流。当前电池电压小于充电截止电压，即电池未充满；当前充电电流小于预设电流，即电池充电效率未达到最高，移动终端的当前输入电流小于充电装置允许的最大输出电流，即充电装置的输出功率未达到最大，此时，调整单元303调大当前输入电流，即可调大充电装置的输出功率。实施本发明实施例，可以根据系统负载调整充电电流，在平衡电池充电功率和系统负载功率的前提下，最大化充电装置的输出功率，节省电池充电时间，提高充电效率。
确定单元304，用于当当前电池电压大于或等于充电截止电压时，确定充电完成。
本发明实施例中，当当前电池电压大于或等于充电截止电压时，表明电池已充满，确定单元304确定充电完成，结束充电。
本发明实施例中，使用充电装置对移动终端进行充电时，采集单元301采集移动终端的当前输入电压、当前电池电压以及移动终端的当前系统负载电流；计算单元302根据当前输入功率、当前系统负载功率和当前电池电压计算当前充电电流，其中，当前输入功率为输入电流和当前输入电压之积，当前系统负载功率为当前电池电压与当前系统负载电流之积；当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且移动终端的当前输入电流小于充电装置允许的最大输出电流时，调整单元303调大当前输入电流；当当前电池电压大于或等于充电截止电压时，确定单元304确定充电完成。实施本发明实施例，可以根据系统负载调整充电电流，在平衡电池充电功率和系统负载功率的前提下，最大化充电装置的输出功率，节省电池充电时间，提高充电效率。
请参阅图4，图4是本发明实施例公开的另一种移动终端的结构示意图。如图4所示，本实施例中所描述的移动终端，除了包括图3所示的采集单元301、计算单元302、调整单元303和确定单元304之外，还包括设置单元305，其中：
设置单元305，用于设置移动终端的当前输入电流，当前输入电流小于或等于充电装置允许的最大输出电流。
本发明实施例中，使用充电装置对移动终端进行充电时，设置单元305设置移动终端的当前输入电流小于或等于充电装置允许的最大输出电流，当前输入电流小于最大输出电流时，充电装置不以最大功率输出，当系统负载功率较小时，电池充电电流也不会太大，可以起到保护电池的作用，当前输入电流等于最大输出电流时，充电装置以最大功率输出，可以最大化充电装置的输出功率，提高电池的充电效率。
调整单元303，还用于当当前电池电压小于充电截止电压且当前充电电流大于或等于预设电流时，调低当前输入电流，触发采集单元301采集移动终端的当前输入电压、当前电池电压以及移动终端的当前负载电流。
本发明实施例中，当当前电池电压小于充电截止电压且当前充电电流大于 或等于预设电流时，调整单元303调低当前输入电流。当当前电池电压小于充电截止电压，即电池未充满，当当前充电电流大于或等于预设电流时，即电池的充电电流已经达到或超过最大充电电流了，说明充电装置输出功率过大，调整单元303则调低当前输入电流，调低充电装置的输出功率。实施本发明实施例，可以通过充电电流大小来调整移动终端的输入电流大小，可以在保护电池的情况下，最大化充电装置的输出功率，节省电池充电时间，提高充电效率。
本发明实施例中，使用充电装置对移动终端进行充电时，设置单元305设置移动终端的当前输入电流，当前输入电流小于或等于充电装置允许的最大输出电流；采集单元301采集移动终端的当前输入电压、当前电池电压以及移动终端的当前系统负载电流；计算单元302根据当前输入功率、当前系统负载功率和当前电池电压计算当前充电电流，其中，当前输入功率为输入电流和当前输入电压之积，当前系统负载功率为当前电池电压与当前系统负载电流之积；当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且移动终端的当前输入电流小于充电装置允许的最大输出电流时，调整单元303调大当前输入电流；当当前电池电压小于充电截止电压且当前充电电流大于或等于预设电流时，调整单元303调低当前输入电流，继续采集移动终端的当前输入电压、当前电池电压以及移动终端的当前系统负载电流；当当前电池电压大于或等于充电截止电压时，确定单元304确定充电完成。实施本发明实施例，可以通过充电电流大小来调整移动终端的输入电流大小，可以在保护电池的情况下，最大化充电装置的输出功率，节省电池充电时间，提高充电效率。
请参阅图5，图5是本发明实施例公开的又一种移动终端的结构示意图，如图5所示，移动终端包括存储器501和处理器502(处理器502的数量可以一个或多个，图5中以一个处理器为例)，在本发明的一些实施例中，存储器501和处理器502可通过总线或者其它方式连接，其中，图5中以通过总线连接为例。存储器501用于存储指令，处理器502调用存储在存储器501中的指令执行如下操作：
使用充电装置对移动终端进行充电时，采集移动终端的当前输入电压、当前电池电压以及移动终端的当前系统负载电流；
根据当前输入功率、当前系统负载功率和当前电池电压计算当前充电电 流，其中，当前输入功率为输入电流和当前输入电压之积，当前系统负载功率为当前电池电压与当前系统负载电流之积；
当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且移动终端的当前输入电流小于充电装置允许的最大输出电流时，调大当前输入电流。
可选的，处理器502采集移动终端的当前输入电压、当前电池电压以及移动终端的当前系统负载电流之前，处理器502还用于：
设置移动终端的当前输入电流，当前输入电流小于或等于充电装置允许的最大输出电流。
可选的，处理器502设置移动终端的输入电流之后，处理器502还用于：
当当前电池电压小于充电截止电压且当前充电电流大于或等于预设电流时，调低当前输入电流，继续执行采集移动终端的当前输入电压、当前电池电压以及移动终端的当前负载电流的步骤。
可选的，处理器502还用于：
当当前电池电压小于充电截止电压且当前充电电流小于预设电流时，且当前输入电流等于最大输出电流时，继续执行采集移动终端的当前输入电压、当前电池电压以及移动终端的当前负载电流的步骤。
可选的，处理器502还用于：
当当前电池电压大于或等于充电截止电压时，确定充电完成。实施图5所描述的移动终端，可以在保护电池的情况下，最大化充电装置的输出功率，节省电池充电时间，提高充电效率。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质可以包括：闪存盘、只读存储器(Read-Only Memory，ROM)、随机存取器(Random Access Memory，RAM)、磁盘或光盘等。
以上对本发明实施例所提供的一种充电电流调节方法及移动终端进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会 有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (15)

  1. 一种充电电流调节方法，其特征在于，包括：
    使用充电装置对移动终端进行充电时，采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前系统负载电流；
    根据当前输入功率、当前系统负载功率和所述当前电池电压计算当前充电电流，其中，所述当前输入功率为所述输入电流和所述当前输入电压之积，所述当前系统负载功率为所述当前电池电压与所述当前系统负载电流之积；
    当所述当前电池电压小于充电截止电压且所述当前充电电流小于预设电流时，且所述移动终端的当前输入电流小于所述充电装置允许的最大输出电流时，调大所述当前输入电流。
  2. 根据权利要求1所述的方法，其特征在于，所述采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前系统负载电流之前，所述方法还包括：
    设置移动终端的当前输入电流，所述当前输入电流小于或等于充电装置允许的最大输出电流。
  3. 根据权利要求2所述的方法，其特征在于，所述设置移动终端的输入电流之后，所述方法还包括：
    当所述当前电池电压小于所述充电截止电压且所述当前充电电流大于或等于所述预设电流时，调低所述当前输入电流，继续执行所述采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前负载电流的步骤。
  4. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    当所述当前电池电压小于所述充电截止电压且所述当前充电电流小于所述预设电流时，且所述当前输入电流等于所述最大输出电流时，继续执行所述采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前负载电流的步骤。
  5. 根据权利要求1～4任一项所述的方法，其特征在于，所述方法还包括：
    当所述当前电池电压大于或等于所述充电截止电压时，确定充电完成。
  6. 一种移动终端，其特征在于，包括：
    采集单元，用于当使用充电装置对移动终端进行充电时，采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前系统负载电流；
    计算单元，用于根据当前输入功率、当前系统负载功率和所述当前电池电压计算当前充电电流，其中，所述当前输入功率为所述输入电流和所述当前输入电压之积，所述当前系统负载功率为所述当前电池电压与所述当前系统负载电流之积；
    调整单元，用于当所述当前电池电压小于充电截止电压且所述当前充电电流小于预设电流时，且所述移动终端的当前输入电流小于所述充电装置允许的最大输出电流时，调大所述当前输入电流。
  7. 根据权利要求6所述的移动终端，其特征在于，所述移动终端还包括：
    设置单元，用于设置移动终端的当前输入电流，所述当前输入电流小于或等于充电装置允许的最大输出电流。
  8. 根据权利要求7所述的移动终端，其特征在于，
    所述调整单元，还用于当所述当前电池电压小于所述充电截止电压且所述当前充电电流大于或等于所述预设电流时，调低所述当前输入电流，触发所述采集单元采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前负载电流。
  9. 根据权利要求6所述的移动终端，其特征在于，
    所述采集单元，还用于当所述当前电池电压小于所述充电截止电压且所述当前充电电流小于所述预设电流时，且所述当前输入电流等于所述最大输出电流时，继续采集所述移动终端的当前输入电压、当前电池电压以及所述移动终 端的当前负载电流。
  10. 根据权利要求6～9任一项所述的移动终端，其特征在于，所述移动终端还包括：
    确定单元，用于当所述当前电池电压大于或等于所述充电截止电压时，确定充电完成。
  11. 一种移动终端，其特征在于，包括处理器和存储器，所述存储器用于存储指令；所述处理器调用存储在所述存储器中的指令执行如下操作：
    使用充电装置对移动终端进行充电时，采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前系统负载电流；
    根据当前输入功率、当前系统负载功率和所述当前电池电压计算当前充电电流，其中，所述当前输入功率为所述输入电流和所述当前输入电压之积，所述当前系统负载功率为所述当前电池电压与所述当前系统负载电流之积；
    当所述当前电池电压小于充电截止电压且所述当前充电电流小于预设电流时，且所述移动终端的当前输入电流小于所述充电装置允许的最大输出电流时，调大所述当前输入电流。
  12. 根据权利要求11所述的移动终端，其特征在于，所述处理器采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前系统负载电流之前，所述处理器还用于：
    设置移动终端的当前输入电流，所述当前输入电流小于或等于充电装置允许的最大输出电流。
  13. 根据权利要求12所述的移动终端，其特征在于，所述处理器设置移动终端的输入电流之后，所述处理器还用于：
    当所述当前电池电压小于所述充电截止电压且所述当前充电电流大于或等于所述预设电流时，调低所述当前输入电流，继续执行所述采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前负载电流的步骤。
  14. 根据权利要求11所述的移动终端，其特征在于，所述处理器还用于：
    当所述当前电池电压小于所述充电截止电压且所述当前充电电流小于所述预设电流时，且所述当前输入电流等于所述最大输出电流时，继续执行所述采集所述移动终端的当前输入电压、当前电池电压以及所述移动终端的当前负载电流的步骤。
  15. 根据权利要求11～14任一项所述的移动终端，其特征在于，所述处理器还用于：
    当所述当前电池电压大于或等于所述充电截止电压时，确定充电完成。
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