CN106932729A - A kind of battery voltage detection method and terminal - Google Patents
A kind of battery voltage detection method and terminal Download PDFInfo
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- CN106932729A CN106932729A CN201710247141.7A CN201710247141A CN106932729A CN 106932729 A CN106932729 A CN 106932729A CN 201710247141 A CN201710247141 A CN 201710247141A CN 106932729 A CN106932729 A CN 106932729A
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- terminal
- voltage
- battery
- current
- internal resistance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
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Abstract
The embodiment of the invention discloses a kind of battery voltage detection method and terminal, wherein method includes：Determine the current charging times of terminal, if the charging times meet pre-conditioned, obtain the internal resistance of the terminal；Determine the current working condition of battery；The present motherboards detection voltage of operating current of the battery under current operating state and the terminal is obtained, and present battery virtual voltage is determined according to the internal resistance, the operating current and the present motherboards detection voltage.Embodiment of the present invention terminal helps to eliminate influence of the internal resistance to cell voltage, improves the endurance of end cell.
Description
Technical field
The present invention relates to electronic technology field, more particularly to a kind of battery voltage detection method and terminal.
Background technology
With developing rapidly for mobile terminal technology, the application function that mobile terminal can be provided is more and more thus more next
It is more welcomed by the people, and with the popularization of mobile terminal, mobile terminal power consumption is increasing, battery durable ability is increasingly
Paid attention to by user.
At present, existing mobile terminal is being charged or in using process, and it is left that battery electric quantity is used to 5%
The right side will low pressure shutdown, being charged to 95% or so will end charging, will so cause that 10% of battery or so electricity is unrestrained
Take, and then reduce the endurance of mobile terminal, and producing the main cause of this problem, to be that mobile terminal itself has certain
Internal resistance, i.e. Mobile terminal main board impedance, connector impedance and the impedance of flexible PCB so that mobile terminal is being used
During cell voltage low pressure shutdown when not being reduced to shutdown voltage, and cell voltage does not charge to target when charging
Show that charging is finished during voltage, such as when cell voltage is used to 3.5V or so, because internal resistance is present, work as central processing unit
(Central Processing Unit, CPU) checks cell voltage for 3.4V, the shutdown of mobile terminal low pressure；Together should battery
When voltage is charged to 4.1V, cell voltage is checked for 4.2V because internal resistance has CPU, cause cut-off to be charged.
Further, since mobile terminal has aging conditions in using process, therefore the internal resistance of terminal itself also can phase
Should change, and then influence the change of terminal battery voltage, lead to not accurately calculate battery electric quantity, so that cannot be to battery
Electricity is accurately compensated, and reduces the endurance of end cell.
The content of the invention
The embodiment of the present invention provides a kind of battery voltage detection method and terminal, helps to eliminate terminal internal resistance to battery electricity
The influence of pressure, improves the endurance of end cell.
In a first aspect, a kind of battery voltage detection method is the embodiment of the invention provides, the battery voltage detection method
Including：
Determine the current charging times of terminal, if the charging times meet pre-conditioned, obtain the interior of the terminal
Resistance；
Determine the current working condition of battery；
The present motherboards detection voltage of operating current of the battery under current operating state and the terminal is obtained, and
Present battery virtual voltage is determined according to the internal resistance, the operating current and the present motherboards detection voltage.
On the other hand, a kind of terminal is the embodiment of the invention provides, the terminal includes：
Acquiring unit, the charging times for determining terminal, if the charging times meet pre-conditioned, obtain described
The internal resistance of terminal；
First determining unit, the working condition current for determining battery；
Second determining unit, for obtaining working as operating current of the battery under current operating state and the terminal
Preceding mainboard detection voltage, and current electricity is determined according to the internal resistance, the operating current and the present motherboards detection voltage
Pond virtual voltage.
The embodiment of the present invention charging times current by determining terminal, if charging times meet pre-conditioned, obtain
The internal resistance of terminal, and determine the current working condition of battery, to obtain operating current and end of the battery under current operating state
The present motherboards detection voltage at end, and present battery reality is determined according to internal resistance, operating current and present motherboards detection voltage
Voltage so that terminal can be accurately detected present battery virtual voltage, helps to eliminate shadow of the terminal internal resistance to cell voltage
Ring, improve the endurance of end cell.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, embodiment will be described below needed for be used
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of schematic flow diagram of battery voltage detection method that the embodiment of the present invention one is provided；
Fig. 2 is a kind of schematic flow diagram of battery voltage detection method that the embodiment of the present invention two is provided；
Fig. 3 is a kind of schematic block diagram of terminal that the embodiment of the present invention three is provided；
Fig. 4 is a kind of schematic block diagram of terminal that the embodiment of the present invention four is provided；
Fig. 5 is a kind of schematic block diagram of terminal that the embodiment of the present invention five is provided.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
It should be appreciated that when using in this specification and in the appended claims, term " including " indicate described spy
Levy, entirety, step, operation, the presence of element and/or component, but be not precluded from one or more of the other feature, entirety, step,
The presence or addition of operation, element, component and/or its set.
It is also understood that the term used in this description of the invention is merely for the sake of the mesh for describing specific embodiment
And be not intended to limit the present invention.As used in description of the invention and appended claims, unless on
Other situations are hereafter clearly indicated, otherwise " one " of singulative, " one " and " being somebody's turn to do " is intended to include plural form.
It will be further appreciated that, the term "and/or" used in description of the invention and appended claims is
Refer to any combinations of one or more in the associated item listed and be possible to combination, and including these combinations.
As in this specification and in the appended claims as use, term " if " can be according to context quilt
Be construed to " when ... " or " once " or " in response to determining " or " in response to detecting ".Similarly, phrase " if it is determined that " or
" if detecting [described condition or event] " can be interpreted to mean according to context " once it is determined that " or " in response to true
It is fixed " or " once detecting [described condition or event] " or " in response to detecting [described condition or event] ".
In implementing, the terminal described in the embodiment of the present invention including but not limited to such as has touch sensitive surface
Other of the mobile phone of (for example, touch-screen display and/or touch pad), laptop computer or tablet PC etc are just
Portable device.It is to be further understood that in certain embodiments, the equipment not portable communication device, but with touching
Touch the desktop computer of sensing surface (for example, touch-screen display and/or touch pad).
In discussion below, describe to include the terminal of display and touch sensitive surface.It is, however, to be understood that
It is that terminal can include one or more of the other physical user-interface device of such as physical keyboard, mouse and/or control-rod.
Terminal supports various application programs, such as it is following in one or more：Drawing application program, demonstration application journey
Sequence, word-processing application, website create application program, disk imprinting application program, spreadsheet applications, game application
Program, telephony application, videoconference application, email application, instant messaging applications, exercise
Support application program, photo management application program, digital camera application program, digital camera application program, web-browsing application
Program, digital music player application and/or video frequency player application program.
The various application programs that can be performed in terminal can be public using at least one of such as touch sensitive surface
Physical user-interface device.Can be adjusted among applications and/or in corresponding application programs and/or changed and touch sensitive table
The corresponding information shown in the one or more functions and terminal in face.So, the public physical structure of terminal is (for example, touch
Sensing surface) can support that there are the various application programs of user interface directly perceived and transparent for a user.
It is a kind of schematic flow diagram of battery voltage detection method that the embodiment of the present invention one is provided referring to Fig. 1.This implementation
The executive agent of battery voltage detection method is terminal in example, and the terminal can be the mobile terminals such as mobile phone, panel computer.Such as
The battery voltage detection method shown in Fig. 1 may include following steps：
S101：Determine the charging times of terminal, if the charging times meet pre-conditioned, obtain the interior of the terminal
Resistance.
Wherein, in embodiments of the present invention, for the pre-conditioned charging times mainly for terminal, it can be according to user
Needs are configured, and are not particularly limited herein.
Additionally, the flexible PCB needed for mainboard and work are provided with terminal, and between mainboard and flexible PCB
Connected by connector, and mainboard, connector and flexible PCB are respectively provided with respective impedance, therefore, when the battery of terminal
In electric discharge or charging, impedance three's sum of the impedance of mainboard, the impedance of connector and flexible PCB constitutes end
The internal resistance at end, the internal resistance can be obtained by calculating.
S102：Determine the current working condition of battery.
Wherein, in embodiments of the present invention, the working condition of battery includes charged state and electric discharge working condition.Wherein,
The working condition of battery when charging working condition refers to external charging equipment to terminal charge, for example, terminal using filling soon,
The working condition of battery when the charging equipments such as charger baby charge；Discharge condition refers to the work shape of terminal battery when in use
State, for example, when user is made a phone call using terminal, sent short messages, watching video battery working condition.
S103：Obtain operating current of the battery under current operating state and detect electricity with the present motherboards of the terminal
Pressure, and present battery virtual voltage is determined according to the internal resistance, the operating current and the present motherboards detection voltage.
Wherein, in embodiments of the present invention, operating current of the battery under current operating state includes：Battery is in charging shape
Charging current or battery under state discharge current in the discharged condition.Wherein, battery discharge current in the discharged condition
The electric current of terminal battery in using process is referred to, for example, when user is made a phone call using terminal, sent short messages, watching video,
The electric current that terminal is obtained is the discharge current of battery；Battery charging current in the charge state refers to terminal and was charging
The electric current of battery in journey, for example, terminal using filling soon, the charging equipment such as charger baby charge when, the electric current that terminal is obtained is
The charging current of battery.
It is all the way that power consumption electric current leads to it should be noted that in embodiments of the present invention, there is two-way current path in terminal
Road, i.e. discharge current path, are all the way charging current paths, therefore, when battery is in electric discharge, i.e., when terminal is used, terminal
Can by discharge current path obtain battery discharge current, and battery charge when, terminal can be obtained by charging current path
The charging current in power taking pond.
Further, the present motherboards detection voltage refers to when battery is under certain particular state, in the master of terminal
The voltage of the battery voltage detection point on plate, herein the particular state of described battery include charged state and discharge condition.That is,
When battery is in discharge condition, the present motherboards detection voltage of terminal is electricity of the terminal on itself mainboard in using process
The voltage of cell voltage test point；When battery is in charged state, the present motherboards detection voltage of terminal is being electrically charged for terminal
During battery voltage detection point on itself mainboard voltage.
In embodiments of the present invention, the terminal charging times current by determining terminal, if charging times meet default bar
Part, then obtain the internal resistance of terminal, and determines the current working condition of battery, to obtain work of the battery under current operating state
The present motherboards detection voltage of electric current and terminal, and determined according to internal resistance, operating current and present motherboards detection voltage current
Battery virtual voltage so that terminal can be accurately detected present battery virtual voltage, helps to eliminate terminal internal resistance to battery
The influence of voltage, improves the endurance of end cell.
It is a kind of schematic flow diagram of battery voltage detection method that the embodiment of the present invention two is provided referring to Fig. 2.This implementation
The executive agent of battery voltage detection method is terminal in example, and the terminal can be the mobile terminals such as mobile phone, panel computer.Such as
The battery voltage detection method shown in Fig. 2 may include following steps：
S201：Determine the charging times of terminal, if the charging times meet pre-conditioned, obtain the interior of the terminal
Resistance.
Wherein, in embodiments of the present invention, for the pre-conditioned charging times mainly for terminal, it can be according to user
Needs are configured.
Preferably, charging times meet it is pre-conditioned refer to charging times be first or with interval N first times for several times,
Wherein, N is the integer more than 1, and such as N is 10.Additionally, the flexible PCB needed for mainboard and work are provided with terminal, and
And between mainboard and flexible PCB by connector connect, and mainboard, connector and flexible PCB be respectively provided with it is respective
Impedance, therefore, when the battery of terminal is in electric discharge or charging, the impedance of mainboard, the impedance of connector and flexible PCB
Impedance three's sum constitute the internal resistance of terminal, the internal resistance can be obtained by calculating.
Further, terminal when calculating internal resistance, it is necessary to first determine the current charging times of terminal, specific implementation
When, charging times can be counted by the counter of terminal inner, and count results are preserved in memory, in order to end
End obtains charging times；When terminal charges for the first time, terminal-pair internal resistance carries out first time calculating, and hereafter be spaced N first
Quilt times for several times, i.e., calculate an internal resistance at interval of n times terminal.
For example, terminal can be calculated the internal resistance of itself before 10M+1 times is charged, wherein, 10 are and initial charge
Interval N, M be be spaced first times for several times.What deserves to be explained is, in itself before the 10M+1 times described herein charging
Resistance carries out calculating and refers to, when terminal is when charging for the 10M+1 times, to count itself internal resistance before the 10M+1 times is charged
Calculate.Specifically, when M is 0, i.e., when charging for the 1st time, the internal resistance that terminal can be before charging to terminal is calculated terminal, works as M
For 1 when, i.e., when charging for the 11st time, the internal resistance that terminal can be before charging to terminal is calculated terminal, when M is 2, i.e. terminal
When charging for the 21st time, the internal resistance that terminal can be before charging to terminal is calculated, the like, terminal can be the in terminal
Internal resistance before charging for 10M+1 times to terminal is calculated.
Further, the internal resistance for obtaining the terminal is specially：
S2010：Obtain the first electric current that the terminal is provided from external charging equipment when charging to the battery；Its
In, the terminal charging times corresponding when charging need to meet described pre-conditioned.
Wherein, in embodiments of the present invention, when terminal is when charging for the 10M+1 times, external charging equipment meeting before charging
A first small electric current first is provided to end cell, the span of first electric current is not more than 1 microampere.
S2011：First mainboard detection voltage of the terminal under first electric current is detected, and according to the described first master
Plate detection voltage obtains the current battery level of terminal.
Wherein, in embodiments of the present invention, after terminal obtains first electric current, the CPU of terminal inner is detected at this
Mainboard detection voltage under first electric current, to obtain the first mainboard detection voltage of now terminal, and detects according to the first mainboard
Voltage obtains the current battery level of terminal, i.e., obtain battery of the terminal under first electric current according to the first mainboard detection voltage
Voltage；It should be noted that in embodiments of the present invention, the value principle of the first electric current is the electricity caused under first electric current
Cell voltage is approximately equal to the first mainboard detection voltage under first electric current, it is preferred that the value of first electric current is approximately
Zero.
For example, before terminal charges for the 10M+1 times, external charging equipment applies a Weak current I0 to terminal first,
Now the CPU of terminal checks first mainboard detection voltage of the terminal under Weak current I0, when the CPU of terminal is detected now
First mainboard detection voltage of terminal be V1 when, terminal can according to the current battery level of formula V0=V1-I0*R computing terminals,
Wherein, V0 is the current battery level value of terminal, and R is the internal resistance value of terminal, is almost 0 because I0 is very small, so now
Current battery level V0 be approximately equal to the first mainboard detection voltage V1.
S2012：After the preset interval time for detecting the first mainboard detection voltage, detect that the terminal is being filled
From the external charging equipment to the second mainboard detection voltage under the second electric current that the battery is provided when electric, and according to described
Second mainboard detection voltage, second electric current and the current battery level calculate the internal resistance of the terminal；Wherein, it is described
Second electric current is more than first electric current.
Wherein, in embodiments of the present invention, preset interval time can need to be configured according to user, it is preferred that default
Interval time can be approximately zero.
Further, after outside charging equipment applies a Weak current I0 to terminal, it applies one to terminal at once
Individual high current I1, now the CPU of terminal check second mainboard detection voltage of the terminal under high current I1, as the CPU of terminal
When the second mainboard detection voltage for detecting now terminal is V1', terminal can be according to formula V1'=V0+R*I1 computing terminals
Internal resistance, and because cell voltage V0 is approximately equal to the first mainboard detection voltage V1, therefore, terminal can obtain the computing formula of internal resistance
It is R=(V1'-V0)/I1=(V1'-V1)/I1, so as to may be such that terminal obtains the internal resistance of itself according to formula.
In embodiments of the present invention, due to said process can accurate computing terminal internal resistance, therefore, when terminal invests market
Before, can be by the algorithm of said process write-in terminal, so that internal resistance of the terminal according to said process to its own is accurately counted
Calculate, so that internal resistance is inconsistent between can effectively solving the problems, such as different terminals, and cause in the internal resistance using terminal to terminal electricity
When cell voltage is compensated, it is to avoid compensation inconsistent problem, and then compensation precision can be effectively improved.
S202：Determine the current working condition of battery.
Wherein, in embodiments of the present invention, the working condition of battery includes charged state and electric discharge working condition.Wherein,
The working condition of battery when charging working condition refers to external charging equipment to terminal charge, for example, terminal using filling soon,
The working condition of battery when the charging equipments such as charger baby charge；Discharge condition refers to the work shape of terminal battery when in use
State, for example, when user is made a phone call using terminal, sent short messages, watching video battery working condition.
S203：Obtain operating current of the battery under current operating state and detect electricity with the present motherboards of the terminal
Pressure, and present battery virtual voltage is determined according to the internal resistance, the operating current and the present motherboards detection voltage.
Wherein, in embodiments of the present invention, operating current of the battery under current operating state includes：Battery is in charging shape
Charging current or battery under state discharge current in the discharged condition.Wherein, battery discharge current in the discharged condition
The electric current of terminal battery in using process is referred to, for example, when user is made a phone call using terminal, sent short messages, watching video,
The electric current that terminal is obtained is the discharge current of battery；Battery charging current in the charge state refers to terminal and was charging
The electric current of battery in journey, for example, terminal using filling soon, the charging equipment such as charger baby charge when, the electric current that terminal is obtained is
The charging current of battery.
It is all the way that power consumption electric current leads to it should be noted that in embodiments of the present invention, there is two-way current path in terminal
Road, i.e. discharge current path, are all the way charging current paths, therefore, when battery is in electric discharge, i.e., when terminal is used, terminal
Can by discharge current path obtain battery discharge current, and battery charge when, terminal can be obtained by charging current path
The charging current in power taking pond.
Further, the present motherboards detection voltage refers to when battery is under certain particular state, in the master of terminal
The voltage of the battery voltage detection point on plate, herein the particular state of described battery include charged state and discharge condition.That is,
When battery is in discharge condition, the present motherboards detection voltage of terminal is electricity of the terminal on itself mainboard in using process
The voltage of cell voltage test point；When battery is in charged state, the present motherboards detection voltage of terminal is being electrically charged for terminal
During battery voltage detection point on itself mainboard voltage.
Further, the current master for obtaining operating current of the battery under current operating state and the terminal
Plate detection voltage, and present battery reality is determined according to the internal resistance, the operating current and the present motherboards detection voltage
Border voltage is specially：
Obtain threeth master of the battery discharge current and the terminal in the discharged condition under the discharge condition
Plate detection voltage, and the electric discharge shape is determined according to the internal resistance, the discharge current and the 3rd mainboard detection voltage
Battery virtual voltage under state；Or
Obtain fourth master of the battery charging current and the terminal in the charge state under the charged state
Plate detection voltage, and the charging shape is determined according to the internal resistance, the charging current and the 4th mainboard detection voltage
Battery virtual voltage under state.
Wherein, in embodiments of the present invention, it is all the way power consumption current path, one due to there is two-way current path in terminal
Road is charging current path, therefore, when the battery of terminal is in electric discharge or charging, terminal can obtain battery electric discharge or when
Electric current, and mainboard detection voltage of the terminal under battery charge or discharge state, and then according to internal resistance, the electric current for obtaining
Determine present battery virtual voltage with mainboard detection voltage；It should be noted that in embodiments of the present invention, when terminal is current both
During use, when having external charging equipment to be charged to it again, now terminal determines the present battery reality of its cells
Method when voltage charges with it is identical, and here is omitted.
Specifically, when terminal is current only when in use, the voltameter in terminal enters to the electric current of power consumption current path
Row detection, to obtain the discharge current of terminal battery in using process, while the CPU of terminal is in terminal using process
Mainboard detection voltage detected, to obtain threeth mainboard detection voltage of the terminal in using process, and work as terminal and obtain
After getting discharge current of the battery in using process and the 3rd mainboard detection voltage of itself, terminal can according to internal resistance, put
Electric current and the 3rd mainboard detection voltage determine terminal battery virtual voltage in the discharged condition, so as to prevent due to terminal
The presence of internal resistance, the present battery virtual voltage for causing terminal to be detected in using process is too low and automatic shutdown.
Further, it is described that institute is determined according to the internal resistance, the discharge current and the 3rd mainboard detection voltage
The battery virtual voltage stated under discharge condition is specially：
According to formula VIt is interior=R × I2Calculate internal resistance voltage of the terminal under the discharge condition；Wherein, VIt is interiorFor described
Internal resistance magnitude of voltage of the terminal under the discharge condition, R is the resistance of the internal resistance, I2It is discharge current value；
According to formula V2'=V2+VIt is interiorDetermine battery battery virtual voltage in the discharged condition；Wherein, V2' for institute
State the battery actual voltage value under discharge condition, V2It is the magnitude of voltage of the 3rd mainboard detection voltage.
Wherein, for example, terminal CPU in electric discharge detects the 3rd mainboard detection voltage V2It is 3.4V, and passes through to calculate
The internal resistance magnitude of voltage V of terminal during the electric discharge arrivedIt is interior=R × I2=0.1V, then terminal can be according to formula V2'=V2+VIt is interiorObtain V2'
=3.4V+0.1V=3.5V, so as to accurately obtain present battery actual voltage value, its compared to prior art obtained by work as
For preceding battery actual voltage value, battery electric quantity lifting 5% is continuing with terminal in order to user.
When terminal is current only when charging, the voltameter in terminal is detected to the electric current in charging current path,
To obtain the charging current of terminal battery in charging process, while the CPU of terminal is detected to the mainboard during terminal charge
Voltage detected, is existed with obtaining fourth mainboard detection voltage of the terminal in using process, and working as terminal getting battery
After charging current and the 4th mainboard voltage of itself in charging process, terminal can be according to internal resistance, charging current and the 4th master
Plate detection voltage determines terminal battery virtual voltage in the charge state, so as to prevent, due to the presence of terminal internal resistance, causing
The present battery virtual voltage that terminal is detected in charging process is too high and cut-off is charged.
Further, it is described that institute is determined according to the internal resistance, the charging current and the 4th mainboard detection voltage
The battery virtual voltage stated under charged state is specially：
According to formula VIt is interior'=R × I3Calculate internal resistance voltage of the terminal under the charged state；Wherein, VIt is interior' for institute
Internal resistance magnitude of voltage of the terminal under the charged state is stated, R is the resistance of the internal resistance, I3It is charging current value；According to formula
V3'=V3-VIt is interior' determine battery battery virtual voltage in the charge state；Wherein, V3' it is the battery of the charged state
Actual voltage value, V3It is the magnitude of voltage of the 4th mainboard detection voltage.
Wherein, for example, terminal CPU in charging process detects the 4th mainboard detection voltage V3It is 4.2V, and passes through meter
Internal resistance magnitude of voltage V in the charging process for obtainingIt is interior'=R × I3=0.1V, then terminal can be according to formula V3'=V3-VIt is interior'
To V3'=4.2V-0.1V=4.1V, accurately to obtain present battery actual voltage value, so that the charging chip of terminal inner
End cell is continued to charge, cell voltage is charged to 4.2V, so as to be repaired so that can be by battery by cell voltage
Electricity is charged to 100%.
In embodiments of the present invention, the terminal charging times current by determining terminal, if charging times meet default bar
Part, then obtain the internal resistance of terminal, and determines the current working condition of battery, to obtain work of the battery under current operating state
The present motherboards detection voltage of electric current and terminal, and determined according to internal resistance, operating current and present motherboards detection voltage current
Battery virtual voltage so that terminal can be accurately detected present battery virtual voltage, helps to eliminate terminal internal resistance to battery
The influence of voltage, improves the endurance of end cell.
Additionally, terminal can be and the internal resistance of times for several times computing terminal of interval N first in charging times so that terminal can be with
Real-time and Dynamic Detection terminal internal resistance, and the terminal that upgrades in time internal resistance, it is to avoid because terminal it is aging caused by terminal internal resistance not
Accurate situation, so as to the precision being effectively improved when terminal determines battery virtual voltage.
Referring to Fig. 3, Fig. 3 is a kind of schematic block diagram of terminal 3 that the embodiment of the present invention three is provided.Terminal 3 can be hand
The mobile terminals such as machine, panel computer, but this is not limited to, can also be other-end, it is not limited herein.The end of the present embodiment
The each unit that end 3 includes is used for each step performed in the corresponding embodiments of Fig. 1, specifically refers to the corresponding realities of Fig. 1 and Fig. 1
The associated description in example is applied, is not repeated herein.The terminal 3 of the present embodiment includes：Acquiring unit 310, the first determining unit 320 with
And second determining unit 330.
Acquiring unit 310 is used to determine the charging times of terminal, if the charging times meet pre-conditioned, obtains institute
State the internal resistance of terminal.
Such as, acquiring unit 310 determines the charging times of terminal, if the charging times meet pre-conditioned, obtains
The internal resistance of the terminal.The internal resistance of the terminal is sent to second and determines list by acquiring unit 310 after the internal resistance for getting terminal
Unit 330.
First determining unit 320 is used to determine the current working condition of battery.
Such as, the first determining unit 320 determines the current working condition of battery.First determining unit 320 is determining electricity
After the current working condition in pond, the working condition is sent to the second determining unit 330.
Second determining unit 330 is used for the internal resistance of the terminal for receiving the transmission of acquiring unit 310 and the first determining unit 320 is sent out
The current working condition of the battery that send, and obtain working as operating current of the battery under current operating state and the terminal
Preceding mainboard detection voltage, and current electricity is determined according to the internal resistance, the operating current and the present motherboards detection voltage
Pond virtual voltage.
Such as, the second determining unit 330 receives internal resistance and first determining unit 320 of the terminal that acquiring unit 310 sends
The current working condition of the battery of transmission, and obtain operating current of the battery under current operating state and the terminal
Present motherboards detection voltage, and determined according to the internal resistance, the operating current and the present motherboards detection voltage current
Battery virtual voltage.
In embodiments of the present invention, the charging times current by determining terminal of terminal 3, if charging times meet default bar
Part, then obtain the internal resistance of terminal, and determines the current working condition of battery, to obtain work of the battery under current operating state
The present motherboards detection voltage of electric current and terminal, and determined according to internal resistance, operating current and present motherboards detection voltage current
Battery virtual voltage so that terminal can be accurately detected present battery virtual voltage, helps to eliminate terminal internal resistance to battery
The influence of voltage, improves the endurance of end cell.
Referring to Fig. 4, Fig. 4 is a kind of schematic block diagram of terminal 4 that the embodiment of the present invention four is provided.Terminal 4 can be hand
The mobile terminals such as machine, panel computer, but this is not limited to, can also be other-end, it is not limited herein.The end of the present embodiment
The each unit that end 4 includes is used for each step performed in the corresponding embodiments of Fig. 2, specifically refers to the corresponding realities of Fig. 2 and Fig. 2
The associated description in example is applied, is not repeated herein.The terminal 4 of the present embodiment includes：Acquiring unit 410, the first determining unit 420 with
And second determining unit 430.
Acquiring unit 410 is used to determine the charging times of terminal, if the charging times meet pre-conditioned, obtains institute
State the internal resistance of terminal.
Such as, acquiring unit 410 determines the charging times of terminal, if the charging times meet pre-conditioned, obtains
The internal resistance of the terminal.The internal resistance of the terminal is sent to second and determines list by acquiring unit 410 after the internal resistance for getting terminal
Unit 430.
Further, acquiring unit 410 includes：Electric current acquiring unit 4100, detection unit 4101 and computing unit
4102。
Wherein, electric current acquiring unit 4100 be used for obtain the terminal charge when from external charging equipment to the battery
The first electric current for providing.
Such as, electric current acquiring unit 4100 obtains the terminal and is provided from external charging equipment to the battery when charging
The first electric current.Electric current acquiring unit 4100 is sent to detection unit first electric current after first electric current is got
4101。
Detection unit 4101 is used to receive the first electric current of the transmission of electric current acquiring unit 4100, and detects the terminal in institute
The first mainboard detection voltage under the first electric current is stated, and the present battery electricity of terminal is obtained according to the first mainboard detection voltage
Pressure.
Such as, detection unit 4101 receives the first electric current that electric current acquiring unit 4100 sends, and detects that the terminal exists
The first mainboard detection voltage under first electric current, and the present battery of terminal is obtained according to the first mainboard detection voltage
Voltage.Detection unit 4101 is detecting first mainboard detection voltage of the terminal under the first electric current and according to the described first master
After plate detection voltage obtains the current battery level of terminal, the first mainboard detection voltage and current battery level are sent to meter
Calculate unit 4102.
Computing unit 4102 is used to receive the first mainboard detection voltage and current battery level of the transmission of detection unit 4101,
And after the preset interval time for detecting the first mainboard detection voltage, detect the terminal when charging by described outer
The second mainboard detection voltage under the second electric current that portion's charging equipment is provided to the battery, and detected according to second mainboard
Voltage, second electric current and the current battery level calculate the internal resistance of the terminal；Wherein, second electric current is more than
First electric current.
Such as, computing unit 4102 receives the first mainboard detection voltage and the present battery electricity that detection unit 4101 sends
Pressure, and after the preset interval time for detecting the first mainboard detection voltage, detect the terminal when charging by institute
The second mainboard detection voltage under the second electric current that external charging equipment is provided to the battery is stated, and according to second mainboard
Detection voltage, second electric current and the current battery level calculate the internal resistance of the terminal；Wherein, second electric current
More than first electric current.
First determining unit 420 is used to determine the current working condition of battery.
Such as, the first determining unit 420 determines the current working condition of battery.First determining unit 420 is determining electricity
After the current working condition in pond, the working condition is sent to the second determining unit 430.
Second determining unit 430 is used for the internal resistance of the terminal for receiving the transmission of acquiring unit 410 and the first determining unit 420 is sent out
The current working condition of the battery that send, and obtain working as operating current of the battery under current operating state and the terminal
Preceding mainboard detection voltage, and current electricity is determined according to the internal resistance, the operating current and the present motherboards detection voltage
Pond virtual voltage.
Such as, the second determining unit 430 receives internal resistance and first determining unit 420 of the terminal that acquiring unit 410 sends
The current working condition of the battery of transmission, and obtain operating current of the battery under current operating state and the terminal
Present motherboards detection voltage, and determined according to the internal resistance, the operating current and the present motherboards detection voltage current
Battery virtual voltage.
Further, the second determining unit 430 includes first voltage determining unit and second voltage determining unit.
Wherein, first voltage determining unit is used to obtain battery discharge current in the discharged condition and the terminal
The 3rd mainboard detection voltage under the discharge condition, and according to the internal resistance, the discharge current and the 3rd master
Plate detection voltage determines the battery virtual voltage under the discharge condition.
Second voltage determining unit is used to obtain battery charging current in the charge state and the terminal in institute
The 4th mainboard detection voltage under charged state is stated, and is examined according to the internal resistance, the charging current and the 4th mainboard
Survey the battery virtual voltage that voltage is determined under the charged state.
Further, first voltage determining unit is specifically for according to formula VIt is interior=R × I2The terminal is calculated described
Internal resistance voltage under discharge condition；Wherein, VIt is interiorThe internal resistance magnitude of voltage for being the terminal under the discharge condition, R is in described
The resistance of resistance, I2It is discharge current value；According to formula V2'=V2+VIt is interiorDetermine the actual electricity of battery battery in the discharged condition
Pressure；Wherein, V2' it is the battery actual voltage value under the discharge condition, V2It is the magnitude of voltage of the 3rd mainboard detection voltage.
Second voltage determining unit is specifically for according to formula VIt is interior'=R × I3The terminal is calculated in the charged state
Under internal resistance voltage；Wherein, VIt is interior' it is internal resistance magnitude of voltage of the terminal under the charged state, R is the resistance of the internal resistance
Value, I3It is charging current value；
According to formula V3'=V3-VIt is interior' determine battery battery virtual voltage in the charge state；Wherein, V3' for institute
State the battery actual voltage value of charged state, V3It is the magnitude of voltage of the 4th mainboard detection voltage..
In embodiments of the present invention, the charging times current by determining terminal of terminal 4, if charging times meet default bar
Part, then obtain the internal resistance of terminal, and determines the current working condition of battery, to obtain work of the battery under current operating state
The present motherboards detection voltage of electric current and terminal, and determined according to internal resistance, operating current and present motherboards detection voltage current
Battery virtual voltage so that terminal can be accurately detected present battery virtual voltage, helps to eliminate terminal internal resistance to battery
The influence of voltage, improves the endurance of end cell.
Additionally, terminal 4 can be and the internal resistance of computing terminal for several times again for being spaced N first in charging times so that terminal can
With Real-time and Dynamic Detection terminal internal resistance, and the terminal that upgrades in time internal resistance, it is to avoid because terminal it is aging caused by terminal internal resistance
Inaccurate situation, so as to the precision being effectively improved when terminal determines battery virtual voltage.
Referring to Fig. 5, Fig. 5 is a kind of terminal schematic block diagram that the embodiment of the present invention five is provided.This implementation as depicted
Terminal 5 in example can include：One or more processors 510；One or more input equipments 520, one or more outputs
Equipment 530 and memory 550.Above-mentioned processor 510, input equipment 520, output equipment 530 and memory 550 pass through bus
550 connections.
Memory 550 is instructed for storage program.
The programmed instruction that processor 510 is used to be stored according to memory 550 performs following operation：
Processor 510 is used to determine the charging times of terminal, if the charging times meet pre-conditioned, obtains described
The internal resistance of terminal.
Processor 510 is additionally operable to determine the working condition that battery is current.
Processor 510 is additionally operable to obtain operating current of the battery under current operating state current with the terminal
Mainboard detection voltage, and present battery is determined according to the internal resistance, the operating current and the present motherboards detection voltage
Virtual voltage.
Further, processor 510 specifically for obtain the terminal when charging from external charging equipment to the electricity
The first electric current that pond provides；First mainboard detection voltage of the terminal under first electric current is detected, and according to described
One mainboard detection voltage obtains the current battery level of terminal；When the predetermined interval of the first mainboard detection voltage is detected
Between after, detect the terminal when charging from the external charging equipment to second under the second electric current that the battery is provided
Mainboard detection voltage, and calculated according to the second mainboard detection voltage, second electric current and the current battery level
The internal resistance of the terminal；Wherein, second electric current is more than first electric current.
Further, processor 510 specifically obtains battery discharge current in the discharged condition and the terminal exists
The 3rd mainboard detection voltage under the discharge condition, and according to the internal resistance, the discharge current and the 3rd mainboard
Detection voltage determines the battery virtual voltage under the discharge condition；Or obtain battery charging electricity in the charge state
Stream and fourth mainboard detection voltage of the terminal under the charged state, and according to the internal resistance, the charging current with
And the 4th mainboard detection voltage determines the battery virtual voltage under the charged state.
Further, processor 510 is specifically for according to formula VIt is interior=R × I2The terminal is calculated in the discharge condition
Under internal resistance voltage；Wherein, VIt is interiorThe internal resistance magnitude of voltage for being the terminal under the discharge condition, R is the resistance of the internal resistance,
I2It is discharge current value；According to formula V2'=V2+VIt is interiorDetermine battery battery virtual voltage in the discharged condition；Wherein,
V2' it is the battery actual voltage value under the discharge condition, V2It is the magnitude of voltage of the 3rd mainboard detection voltage.
Further, processor 510 is specifically for according to formula VIt is interior'=R × I3The terminal is calculated in the charging shape
Internal resistance voltage under state；Wherein, VIt is interior' it is internal resistance magnitude of voltage of the terminal under the charged state, R is the resistance of the internal resistance
Value, I3It is charging current value；According to formula V3'=V3-VIt is interior' determine battery battery virtual voltage in the charge state；Its
In, V3' it is the battery actual voltage value of the charged state, V3It is the magnitude of voltage of the 4th mainboard detection voltage.
In embodiments of the present invention, the charging times current by determining terminal of terminal 5, if charging times meet default bar
Part, then obtain the internal resistance of terminal, and determines the current working condition of battery, to obtain work of the battery under current operating state
The present motherboards detection voltage of electric current and terminal, and determined according to internal resistance, operating current and present motherboards detection voltage current
Battery virtual voltage so that terminal can be accurately detected present battery virtual voltage, helps to eliminate terminal internal resistance to battery
The influence of voltage, improves the endurance of end cell.
It should be appreciated that in embodiments of the present invention, alleged processor 510 can be CPU (Central
Processing Unit, CPU), the processor can also be other general processors, digital signal processor (Digital
Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit,
ASIC), ready-made programmable gate array (Field-Programmable Gate Array, FPGA) or other FPGAs
Device, discrete gate or transistor logic, discrete hardware components etc..General processor can be microprocessor or this at
Reason device can also be any conventional processor etc..
Input equipment 520 can include that Trackpad, fingerprint adopt sensor (finger print information and fingerprint for gathering user
Directional information), microphone etc., output equipment 530 can be including display (LCD etc.), loudspeaker etc..
The memory 550 can include read-only storage and random access memory, and to processor 510 provide instruction and
Data.The a part of of memory 550 can also include nonvolatile RAM.For example, memory 550 can also be deposited
Store up the information of device type.
In implementing, processor 510, input equipment 520 described in the embodiment of the present invention, output equipment 530 can
Perform described in the first embodiment and second embodiment of the interactive interface generation method of application provided in an embodiment of the present invention
Implementation, also can perform the embodiment of the present invention described by terminal implementation, will not be repeated here.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Unit and algorithm steps, can be realized, with electronic hardware, computer software or the combination of the two in order to clearly demonstrate hardware
With the interchangeability of software, the composition and step of each example are generally described according to function in the above description.This
A little functions are performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Specially
Industry technical staff can realize described function to each specific application using distinct methods, but this realization is not
It is considered as beyond the scope of this invention.
It is apparent to those skilled in the art that, for convenience of description and succinctly, the end of foregoing description
End and the specific work process of unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed terminal and method, can be by it
Its mode is realized.For example, device embodiment described above is only schematical, for example, the division of the unit, only
Only a kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can be tied
Another system is closed or is desirably integrated into, or some features can be ignored, or do not perform.In addition, shown or discussed phase
Coupling or direct-coupling or communication connection between mutually can be INDIRECT COUPLING or the communication by some interfaces, device or unit
Connection, or electricity, machinery or other forms connections.
Step in present invention method can according to actual needs carry out order adjustment, merge and delete.
Unit in embodiment of the present invention terminal can according to actual needs be merged, divides and deleted.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be according to the actual needs selected to realize embodiment of the present invention scheme
Purpose.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, or two or more units are integrated in a unit.It is above-mentioned integrated
Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is to realize in the form of SFU software functional unit and as independent production marketing or use
When, can store in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part for being contributed to prior art in other words, or all or part of the technical scheme can be in the form of software product
Embody, the computer software product is stored in a storage medium, including some instructions are used to so that a computer
Equipment (can be personal computer, server, or network equipment etc.) performs the complete of each embodiment methods described of the invention
Portion or part steps.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, various equivalent modifications can be readily occurred in or replaced
Change, these modifications or replacement should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with right
It is required that protection domain be defined.
Claims (12)
1. a kind of battery voltage detection method, it is characterised in that the battery voltage detection method includes：
Determine the current charging times of terminal, if the charging times meet pre-conditioned, obtain the internal resistance of the terminal；
Determine the current working condition of battery；
Obtain the present motherboards detection voltage of operating current of the battery under current operating state and the terminal, and according to
The internal resistance, the operating current and the present motherboards detection voltage determine present battery virtual voltage.
2. battery voltage detection method according to claim 1, it is characterised in that the charging times meet pre-conditioned
Refer to the charging times be first or with interval N first times for several times, wherein, N is the integer more than 1.
3. battery voltage detection method according to claim 1, it is characterised in that the internal resistance bag of the acquisition terminal
Include：
Obtain the first electric current that the terminal is provided from external charging equipment when charging to the battery；Wherein, terminal is being filled
Corresponding charging times meet described pre-conditioned when electric；
First mainboard detection voltage of the terminal under first electric current is detected, and according to the first mainboard detection voltage
Obtain the current battery level of terminal；
After the preset interval time for detecting the first mainboard detection voltage, detect the terminal when charging by described
The second mainboard detection voltage under the second electric current that external charging equipment is provided to the battery, and examined according to second mainboard
Survey the internal resistance that voltage, second electric current and the current battery level calculate the terminal；Wherein, second electric current is big
In first electric current.
4. the battery voltage detection method according to any one of claims 1 to 3, it is characterised in that the working condition bag
Charged state or discharge condition are included, operating current of the acquisition battery under current operating state is worked as with the terminal
Preceding mainboard detection voltage, and current electricity is determined according to the internal resistance, the operating current and the present motherboards detection voltage
Pond virtual voltage is specially：
Obtain threeth mainboard inspection of the battery discharge current and the terminal in the discharged condition under the discharge condition
Survey voltage, and under determining the discharge condition according to the internal resistance, the discharge current and the 3rd mainboard detection voltage
Battery virtual voltage；Or
Obtain fourth mainboard inspection of the battery charging current and the terminal in the charge state under the charged state
Survey voltage, and under determining the charged state according to the internal resistance, the charging current and the 4th mainboard detection voltage
Battery virtual voltage.
5. battery voltage detection method according to claim 4, it is characterised in that it is described according to the internal resistance, described put
Electric current and the 3rd mainboard detection voltage determine that the battery virtual voltage under the discharge condition is specially：
According to formula VIt is interior=R × I2Calculate internal resistance voltage of the terminal under the discharge condition；Wherein, VIt is interiorIt is the terminal
Internal resistance magnitude of voltage under the discharge condition, R is the resistance of the internal resistance, I2It is discharge current value；
According to formula V2'=V2+VIt is interiorDetermine battery battery virtual voltage in the discharged condition；Wherein, V2' put for described
Battery actual voltage value under electricity condition, V2It is the magnitude of voltage of the 3rd mainboard detection voltage.
6. battery voltage detection method according to claim 4, it is characterised in that it is described according to the internal resistance, described fill
Electric current and the 4th mainboard detection voltage determine that the battery virtual voltage under the charged state is specially：
According to formula VIt is interior'=R × I3Calculate internal resistance voltage of the terminal under the charged state；Wherein, VIt is interior' it is the end
The internal resistance magnitude of voltage under the charged state is held, R is the resistance of the internal resistance, I3It is charging current value；According to formula V3'=
V3-VIt is interior' determine battery battery virtual voltage in the charge state；Wherein, V3' it is the battery reality of the charged state
Magnitude of voltage, V3It is the magnitude of voltage of the 4th mainboard detection voltage.
7. a kind of terminal, it is characterised in that the terminal includes：
Acquiring unit, the charging times for determining terminal, if the charging times meet pre-conditioned, obtain the terminal
Internal resistance；
First determining unit, the working condition current for determining battery；
Second determining unit, the current master for obtaining operating current of the battery under current operating state and the terminal
Plate detection voltage, and present battery reality is determined according to the internal resistance, the operating current and the present motherboards detection voltage
Border voltage.
8. terminal according to claim 7, it is characterised in that it refers to the charging that the charging times meet pre-conditioned
Number of times be first or with interval N first times for several times, wherein, N is the integer more than 1.
9. terminal according to claim 7, it is characterised in that the acquiring unit includes：
Electric current acquiring unit, for obtaining the first electricity that the terminal is provided from external charging equipment when charging to the battery
Stream；Wherein, the terminal charging times corresponding when charging meet described pre-conditioned；
Detection unit, for detecting first mainboard detection voltage of the terminal under first electric current, and according to described
One mainboard detection voltage obtains the current battery level of terminal；
Computing unit, for after the preset interval time for detecting the first mainboard detection voltage, detecting the terminal
When charging from the external charging equipment to the second mainboard detection voltage under the second electric current that the battery is provided, and according to
The second mainboard detection voltage, second electric current and the current battery level calculate the internal resistance of the terminal；Wherein,
Second electric current is more than first electric current.
10. the terminal according to any one of claim 7 to 9, it is characterised in that second determining unit includes：
First voltage determining unit, puts for obtaining battery discharge current in the discharged condition and the terminal described
The 3rd mainboard detection voltage under electricity condition, and electricity is detected according to the internal resistance, the discharge current and the 3rd mainboard
Pressure determines the battery virtual voltage under the discharge condition；Or
Second voltage determining unit, fills for obtaining battery charging current in the charge state and the terminal described
The 4th mainboard detection voltage under electricity condition, and electricity is detected according to the internal resistance, the charging current and the 4th mainboard
Pressure determines the battery virtual voltage under the charged state.
11. terminals according to claim 10, it is characterised in that the first voltage determining unit specifically for：
According to formula VIt is interior=R × I2Calculate internal resistance voltage of the terminal under the discharge condition；Wherein, VIt is interiorIt is the terminal
Internal resistance magnitude of voltage under the discharge condition, R is the resistance of the internal resistance, I2It is discharge current value；
According to formula V2'=V2+VIt is interiorDetermine battery battery virtual voltage in the discharged condition；Wherein, V2' put for described
Battery actual voltage value under electricity condition, V2It is the magnitude of voltage of the 3rd mainboard detection voltage.
12. terminals according to claim 10, it is characterised in that the second voltage determining unit specifically for：
According to formula VIt is interior'=R × I3Calculate internal resistance voltage of the terminal under the charged state；Wherein, VIt is interior' it is the end
The internal resistance magnitude of voltage under the charged state is held, R is the resistance of the internal resistance, I3It is charging current value；
According to formula V3'=V3-VIt is interior' determine battery battery virtual voltage in the charge state；Wherein, V3' filled for described
The battery actual voltage value of electricity condition, V3It is the magnitude of voltage of the 4th mainboard detection voltage.
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| CN201710247141.7A CN106932729A (en) | 2017-04-14 | 2017-04-14 | A kind of battery voltage detection method and terminal |
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Application publication date: 20170707 |