CN110299739A - A kind of charge control method of portable equipment - Google Patents
A kind of charge control method of portable equipment Download PDFInfo
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- CN110299739A CN110299739A CN201910547285.3A CN201910547285A CN110299739A CN 110299739 A CN110299739 A CN 110299739A CN 201910547285 A CN201910547285 A CN 201910547285A CN 110299739 A CN110299739 A CN 110299739A
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- 238000000034 method Methods 0.000 title claims abstract description 68
- 238000007600 charging Methods 0.000 claims abstract description 70
- 230000000694 effects Effects 0.000 claims abstract description 9
- 230000003044 adaptive effect Effects 0.000 claims description 22
- 230000005611 electricity Effects 0.000 claims description 22
- 238000011897 real-time detection Methods 0.000 claims description 13
- 238000010280 constant potential charging Methods 0.000 claims description 9
- 238000010277 constant-current charging Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 5
- 230000014509 gene expression Effects 0.000 claims description 3
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- 101150032839 SLC7A9 gene Proteins 0.000 description 14
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- 238000005070 sampling Methods 0.000 description 8
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Classifications
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- 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
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- H02J7/0022—
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- H02J7/0026—
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the invention discloses a kind of charge control method of portable equipment, the portable equipment includes main control unit, voltage detecting circuit and the battery pack that can be charged；The voltage detecting circuit is connected with the main control unit, for detecting the voltage of the battery in battery pack；The method may include: detect the cell voltage of every batteries in the battery pack；The cell voltage of every batteries is compared to each other；Charging modes are determined according to the relationship between the cell voltage of every batteries.By the example scheme, it can guarantee that single battery charging is normal in battery pack and protects cell safety under complicated work condition environment, and promote battery life, improve user experience effect.
Description
Technical field
The present embodiments relate to charging technique, espespecially a kind of charge control method of portable equipment.
Background technique
It is had the following deficiencies: at present using the battery charge control of the machines such as the accompanying cup of battery power supply mode
Such machine is by battery series connection group packet, and the voltage of single battery and service life have differences after multiple charging, exists
Wherein an economize on electricity cell voltage is close to full state, and there are low-pressure states for another batteries, if deposited using fixed charging modes
In the risk that single battery overcharges, another batteries are not fully filled, and lead to the relatively low influence electricity of the electricity of security risk and battery pack
Pond service life and effects on slurry making, poor user experience.
Summary of the invention
The embodiment of the invention provides a kind of charge control method of portable equipment, can under complicated work condition environment,
Guarantee that single battery charging is normal in battery pack and protects cell safety, and promote battery life, improves user experience effect.
In order to reach purpose of the embodiment of the present invention, the embodiment of the invention provides a kind of charge control sides of portable equipment
Method, the portable equipment may include main control unit, voltage detecting circuit and the battery pack that can be charged；The voltage detecting electricity
Road is connected with the main control unit, for detecting the voltage of the battery in battery pack；The method may include:
Detect the cell voltage of every batteries in the battery pack；
The cell voltage of every batteries is compared to each other；
Charging modes are determined according to the relationship between the cell voltage of every batteries.
In an exemplary embodiment of the present invention, the relationship between the cell voltage according to every batteries determines
Charging modes may include:
When the difference between the cell voltage of every batteries is less than preset voltage differences threshold value, according to the electricity
Voltage range locating for cell voltage is different, the adaptive charged state for adjusting battery；
When the difference between the cell voltage of every batteries is greater than or equal to the voltage differences threshold value, according to every
The charged state of the different adaptive adjustment batteries of voltage range locating for the cell voltage of batteries.
In an exemplary embodiment of the present invention, the method can also include: by the cell voltage and preset one
A or multiple voltage thresholds compare, with voltage range locating for the determination cell voltage；
The charged state includes: to stop charging, trickle charge, constant-current charge and constant-voltage charge；
The voltage threshold includes: battery low limit voltage threshold VL, battery upper limit voltage threshold value VH, trickle charge voltage threshold
Value V1 and constant-current charge voltage threshold V2；
Wherein, VL < V1 < V2 < VH.
In an exemplary embodiment of the present invention, the voltage range according to locating for the cell voltage is different, adaptive
The charged state that battery should be adjusted may include:
When the cell voltage is less than the trickle charge voltage threshold V1 or preset battery low limit voltage threshold VL
When, trickle charge is carried out to battery；
When the cell voltage be greater than or equal to the trickle charge voltage threshold V1, and be less than or equal to the constant current
When charging voltage threshold value V2, constant-current charge is carried out to battery；
When the cell voltage be greater than the constant-current charge voltage threshold V2, and be less than the battery upper limit voltage threshold value VH
When, constant-voltage charge is carried out to battery；
When the cell voltage is greater than or equal to the battery upper limit voltage threshold value VH, stop charging.
In an exemplary embodiment of the present invention, the battery pack includes first battery and tool with first voltage Vb1
There is the second battery of second voltage Vb2；
The charged state of the different adaptive adjustment batteries of the voltage range according to locating for the cell voltage of every batteries
Include:
As Vb1 < V1, V1 < Vb2 < V2, it is adjustment control object with first battery, is given using trickle charge mode
The charging of the battery pack of first battery and second battery composition；And the first battery described in real-time detection and it is described second electricity
The voltage in pond is switched to constant current charging method by trickle charge mode as Vb1 >=V1；
As Vb1>V2, V1<Vb2<V2, it is adjustment control object with first battery, is given using constant voltage charging method
The battery pack charging is until battery voltage described in real-time detection of uniting in Vb2 >=V2, charging process；
As V1 < Vb1 < V2, V1 < Vb2 < V2, if V1 < Vb2 < V2- △ V1, V1 < Vb1 < V2- △ V1, wherein △ V1 is
Preset first voltage difference, using constant current charging method；If V3 < Vb1 < V2, V1 < Vb2 < V3, it is with second battery
Control object is adjusted, charging current is adjusted for t seconds at predetermined intervals according to the second voltage Vb2, wherein V3 is
Preset intermediate threshold, between V1 and V2.
In an exemplary embodiment of the present invention, the charging current is according to the second voltage Vb2 with the preset time
Interval is adjusted for t seconds
The charging current is adjusted according to following relational expressions: (V2-Vb2)/(V2-V3) * I；
Wherein, I is preset current reference value.
In an exemplary embodiment of the present invention, the method can also include:
When the cell voltage of any one batteries is lower than the battery low limit voltage threshold VL, using constant voltage charging method
It charges to battery pack, with the activity of gradually activated batteries battery core, until the cell voltage of the batteries is higher than the trickle charge
After voltage threshold V1, according to the difference of voltage range locating for the cell voltage, the adaptive charged state for adjusting battery；
When the cell voltage for detecting any one batteries is continuously greater than or equal to VH- △ V2, charge closing driving, and
Into standby mode；Wherein, △ V2 is preset second voltage difference.
In an exemplary embodiment of the present invention, the portable equipment may include: main control unit, on the main control unit
It is provided with middle fracture；
The method can also include: to detect external interrupt by the middle fracture before real-time detection battery temperature,
And preset battery control system is waken up when detecting the external interrupt, to implement the battery charging control method.
In an exemplary embodiment of the present invention, the method can also include:
After the battery control system is waken up, battery pack temperature is detected, when the battery pack temperature is in preset temperature
It is determined to charge to the battery pack when in degree range, and detects the cell voltage of every batteries.
In an exemplary embodiment of the present invention, the battery low limit voltage threshold VL can satisfy: 2.5V-2.8V；
The battery upper limit voltage threshold value VH can satisfy: 4.2V-4.3V；
The trickle charge voltage threshold V1 can satisfy: 2.8V-3.2V；
The constant-current charge voltage threshold V2 can satisfy: 4.0V-4.2V.
The beneficial effect of the embodiment of the present invention may include:
1, the portable equipment of the embodiment of the present invention may include main control unit, voltage detecting circuit and can charge
Battery pack；The voltage detecting circuit is connected with the main control unit, for detecting the voltage of the battery in battery pack；It is described
Method may include: the cell voltage of every batteries in the detection battery pack；The cell voltage of every batteries is mutual
Compare；Charging modes are determined according to the relationship between the cell voltage of every batteries.Pass through the example scheme, Neng Gou
Under complicated work condition environment, guarantees that single battery charging is normal in battery pack and protects cell safety, and promote battery life, change
Kind user experience effect.
2, the relationship between the cell voltage according to every batteries of the embodiment of the present invention determines charging modes
It may include: when the difference between the cell voltage of every batteries is less than preset voltage differences threshold value, according to described
Voltage range locating for cell voltage is different, the adaptive charged state for adjusting battery；When the cell voltage of every batteries
Between difference be greater than or equal to the voltage differences threshold value when, not according to voltage range locating for the cell voltage of every batteries
With the charged state of adaptive adjustment battery.By the example scheme, so that single battery voltage is in essentially identical and not phase
With can charge normal in the case of two kinds, single battery voltage is avoided to overcharge or be discontented with security risk caused by situation, guaranteed
The battery of machine is fully charged to greatest extent.
3, the voltage range according to locating for the cell voltage of the embodiment of the present invention is different, adaptively adjusts battery
Charged state may include: when the cell voltage be less than the trickle charge voltage threshold V1 or preset battery low limit
When voltage threshold VL, trickle charge is carried out to battery；When the cell voltage is greater than or equal to the trickle charge voltage threshold
V1, and be less than or equal to the constant-current charge voltage threshold V2 when, to battery carry out constant-current charge；When the cell voltage is big
In the constant-current charge voltage threshold V2, and be less than the battery upper limit voltage threshold value VH when, to battery carry out constant-voltage charge；When
When the cell voltage is greater than or equal to the battery upper limit voltage threshold value VH, stop charging.By the example scheme, realize
To the Precise control of battery pack when single battery voltage is essentially identical, battery life is further improved.
4, the battery pack of the embodiment of the present invention includes having the first battery of first voltage Vb1 and with second voltage
The second battery of Vb2；The different adaptive adjustment batteries of the voltage range according to locating for the cell voltage of every batteries fill
Electricity condition may include: as Vb1 < V1, V1 < Vb2 < V2, be adjustment control object with first battery, using trickle charge
Mode gives the charging of the battery pack of first battery and second battery composition；And the first battery described in real-time detection and described
The voltage of second battery is switched to constant current charging method by trickle charge mode as Vb1 >=V1；Work as Vb1>V2, V1<Vb2<
When V2, with first battery be adjustment control object, using constant voltage charging method to the battery pack charge until Vb2 >=
V2, battery voltage described in real-time detection of uniting in charging process；As V1 < Vb1 < V2, V1 < Vb2 < V2, if V1 < Vb2 < V2-
△ V1, V1 < Vb1 < V2- △ V1, wherein △ V1 is preset first voltage difference, using constant current charging method；If V3 < Vb1 <
V2, V1 < Vb2 < V3 are adjustment control object with second battery, and charging current is according to the second voltage Vb2 with preset
It is adjusted within time interval t seconds, wherein V3 is preset intermediate threshold, between V1 and V2.The example scheme passes through certainly
It adapts to adjustment charge control mode and solves the asynchronous charging imbalance problem of single battery voltage, pass through the tune of charging current
The whole gap for minimizing voltage between single battery realizes that battery capacity is full of to greatest extent, promotes battery life simultaneously
Improve user experience.
5, the method for the embodiment of the present invention can also include: the cell voltage when any one batteries lower than the electricity
When the lower threshold voltage VL of pond, battery pack is given to charge using constant voltage charging method, with the activity of gradually activated batteries battery core, until
After the cell voltage of the batteries is higher than the trickle charge voltage threshold V1, according to voltage range locating for the cell voltage
Difference, the adaptive charged state for adjusting battery；When the cell voltage for detecting any one batteries is continuously greater than or equal to VH-
When △ V2, charge closing driving, and enter standby mode；Wherein, △ V2 is preset second voltage difference.The example scheme
The control processing of single battery limiting voltage when being charged by battery pack, solving single battery brownout can not charge normal
The problem of and single battery overtension lead to the risk overcharged, ensure that safety and the service life of battery, and improve volume user
Experience.
The other feature and advantage of the embodiment of the present invention will illustrate in the following description, also, partly from explanation
It is become apparent in book, or understand through the implementation of the invention.The purpose of the embodiment of the present invention and other advantages can pass through
Specifically noted structure is achieved and obtained in the specification, claims and drawings.
Detailed description of the invention
Attached drawing is used to provide one for further understanding technical solution of the embodiment of the present invention, and constituting specification
Point, it is used to explain the present invention the technical solution of embodiment together with embodiments herein, does not constitute to the embodiment of the present invention
The limitation of technical solution.
Fig. 1 is the charge control method flow chart of the portable equipment of the embodiment of the present invention；
Fig. 2 is the single battery voltage detecting circuit schematic diagram of the embodiment of the present invention.
Specific embodiment
Understand in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing pair
The embodiment of the present invention is described in detail.It should be noted that in the absence of conflict, embodiment and reality in the application
The feature applied in example can mutual any combination.
Step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable
Sequence executes shown or described step.
Embodiment one
The embodiment of the invention provides a kind of charge control method of portable equipment, the portable equipment may include master control
Unit, voltage detecting circuit and the battery pack that can be charged；The voltage detecting circuit is connected with the main control unit, for examining
Survey the voltage of the battery in battery pack；As shown in Figure 1, the method may include S101-S103:
The cell voltage of every batteries in S101, the detection battery pack；
S102, the cell voltage of every batteries is compared to each other；
S103, charging modes are determined according to the relationship between the cell voltage of every batteries.
In an exemplary embodiment of the present invention, the portable equipment may include: main control unit, on the main control unit
It is provided with middle fracture；
The method can also include: to detect external interrupt by the middle fracture before real-time detection battery temperature,
And preset battery control system is waken up when detecting the external interrupt, to implement the battery charging control method.
In an exemplary embodiment of the present invention, it may be at dormant state when charge control system does not work, work as user
When connecting charging cable, the middle fracture of main control chip detects external interrupt, and charge control system is waken up.
In an exemplary embodiment of the present invention, the method can also include:
After the battery control system is waken up, battery pack temperature is detected, when the battery pack temperature is in preset temperature
It is determined to charge to the battery pack when in degree range, and detects the cell voltage of every batteries.
In an exemplary embodiment of the present invention, after system is waken up, battery pack temperature can be first detected, when battery pack temperature
Degree system when charging normal in temperature range is confirmed as to charge, while detecting single battery voltage, for example, the battery
Group may include first battery with first voltage Vb1 and the second battery with second voltage Vb2；That is the electricity of single battery
Pressure can be respectively Vb1 and Vb2.
In an exemplary embodiment of the present invention, the relationship between the cell voltage according to every batteries determines
Charging modes may include:
When the difference between the cell voltage of every batteries is less than preset voltage differences threshold value, according to the electricity
Voltage range locating for cell voltage is different, the adaptive charged state for adjusting battery；
When the difference between the cell voltage of every batteries is greater than or equal to the voltage differences threshold value, according to every
The charged state of the different adaptive adjustment batteries of voltage range locating for the cell voltage of batteries.
In an exemplary embodiment of the present invention, when the difference between the cell voltage of every batteries is less than preset
When voltage differences threshold value, it may be said that the cell voltage of bright every batteries is essentially identical, i.e. Vb1 ≈ Vb2, at this time can be according to battery
The judgement of range at voltage, executes according to corresponding charge control mode.
In an exemplary embodiment of the present invention, when the difference between the cell voltage of every batteries is greater than or equal to
When the voltage differences threshold value, it may be said that the cell voltage of bright every batteries is not identical, i.e. Vb1 ≠ Vb2, can be according to single-unit electricity
The voltage range that the cell voltage in pond is in adaptively adjusts corresponding charge control mode.
In an exemplary embodiment of the present invention, machine charging modes are known according to the voltage range that single battery voltage is in
Do not judge solve the asynchronous charging problems of single battery voltage by charging modes adjustment control, avoid single battery electric
Security risk caused by filling or being discontented with situation is pressed through, ensure that the battery of machine is fully charged to greatest extent, the embodiment side
Case is directed to for portable food processing machine, be can satisfy the multiple continuous slurrying demand of user, be ensure that machine life and change
It has been apt to user experience.
In an exemplary embodiment of the present invention, the method can also include: by the cell voltage and preset one
A or multiple voltage thresholds compare, with voltage range locating for the determination cell voltage.
It in an exemplary embodiment of the present invention, can be by any one economize on electricity when the cell voltage of every batteries is identical
The cell voltage in pond is compared with preset voltage threshold, to determine voltage range locating for the cell voltage.
It in an exemplary embodiment of the present invention, can respectively will be each when the cell voltage of every batteries is not identical
The cell voltage of batteries is compared with preset voltage threshold, with voltage model locating for the cell voltage of each batteries of determination
It encloses.
The charged state may include: to stop charging, trickle charge, constant-current charge and constant-voltage charge；
The voltage threshold may include: battery low limit voltage threshold VL, battery upper limit voltage threshold value VH, trickle charge electricity
Press threshold value V1 and constant-current charge voltage threshold V2；
Wherein, VL < V1 < V2 < VH.
In an exemplary embodiment of the present invention, the battery low limit voltage threshold VL can satisfy: 2.5V-2.8V, example
Such as, it can choose 2.75V, it specifically can be with reference battery model parameter；
The battery upper limit voltage threshold value VH can satisfy: 4.2V-4.3V, specifically can be with for example, can choose 4.25V
Reference battery model parameter；
The trickle charge voltage threshold V1 can satisfy: 2.8V-3.2V, for example, can choose 3V, by trickle charge electricity
Pressure valve value sets lower, the voltage range increasing of constant-current charge, the reduction charging time, specifically can be with reference battery model parameter；
The constant-current charge voltage threshold V2 can satisfy: 4.0V-4.2V, for example, can choose 4.1V, by constant-current charge
Threshold voltage sets higher, the voltage range increasing of constant-current charge, reduction charging time, with specific reference to battery size parameter.
In an exemplary embodiment of the present invention, by the setting of system parameter, meet battery charge control and adjustment
Reliability ensure that battery and service life of a machine, improve user experience.
Embodiment two
The embodiment on the basis of example 1, give every batteries cell voltage it is essentially identical when, according to institute
State the difference of voltage range locating for cell voltage, the example scheme of the adaptive charged state for adjusting battery.
In an exemplary embodiment of the present invention, the voltage range according to locating for the cell voltage is different, adaptive
The charged state that battery should be adjusted may include:
When the cell voltage is less than the trickle charge voltage threshold V1 or preset battery low limit voltage threshold VL
When, trickle charge is carried out to battery；
When the cell voltage be greater than or equal to the trickle charge voltage threshold V1, and be less than or equal to the constant current
When charging voltage threshold value V2, constant-current charge is carried out to battery；
When the cell voltage be greater than the constant-current charge voltage threshold V2, and be less than the battery upper limit voltage threshold value VH
When, constant-voltage charge is carried out to battery；
When the cell voltage is greater than or equal to the battery upper limit voltage threshold value VH, stop charging.
In an exemplary embodiment of the present invention, it can be charged using trickle-constant current-constant voltage mode for battery pack, electricity
When cell voltage is lower than trickle charge threshold voltage V1 or battery low limit threshold voltage Vl, trickle charge, cell voltage can be used
When between trickle charge threshold voltage V1 and constant-current charge threshold voltage V2, constant-current charge can be used, cell voltage is high
When constant-current charge threshold voltage V2, constant-voltage charge can be used, stops charging when battery upper limit voltage threshold values VH.
Embodiment three
The embodiment on the basis of example 1, give every batteries cell voltage it is not identical when, according to every section
The example scheme of the charged state of the different adaptive adjustment batteries of voltage range locating for the cell voltage of battery.
In an exemplary embodiment of the present invention, the voltage range according to locating for the cell voltage of every batteries is different
Adaptively the charged state of adjustment battery may include:
As Vb1 < V1, V1 < Vb2 < V2, it is adjustment control object with first battery, is given using trickle charge mode
The charging of the battery pack of first battery and second battery composition；And the first battery described in real-time detection and it is described second electricity
The voltage in pond is switched to constant current charging method by trickle charge mode as Vb1 >=V1；
As Vb1>V2, V1<Vb2<V2, it is adjustment control object with first battery, is given using constant voltage charging method
The battery pack charging is until battery voltage described in real-time detection of uniting in Vb2 >=V2, charging process；
As V1 < Vb1 < V2, V1 < Vb2 < V2, if V1 < Vb2 < V2- △ V1, V1 < Vb1 < V2- △ V1, wherein △ V1 is
Preset first voltage difference, using constant current charging method；If V3 < Vb1 < V2, V1 < Vb2 < V3, it is with second battery
Control object is adjusted, charging current is adjusted for t seconds at predetermined intervals according to the second voltage Vb2, wherein V3 is
Preset intermediate threshold, between V1 and V2.
In an exemplary embodiment of the present invention, when system detection is to single battery voltage difference, Vb1 ≠ Vb2, single-unit electricity
Pond medium voltage threshold values can be set as V3, and system does adaptive adjustment according to the voltage range that cell voltage is in:
It is adjustment control object with the battery of low-voltage as Vb1 < V1, V1 < Vb2 < V2, system can be filled using trickle
Electric mode charges to battery pack, and system real-time detection battery voltage, as Vb1 >=V1, system charging modes can be by trickle
Charging modes are switched to constant current charging method；
It is adjustment control object with the battery of high voltage as Vb1>V2, V1<Vb2<V2, system can be filled using constant pressure
Electric mode charges to battery pack until system in Vb2 >=V2, charging process can be with real-time detection battery voltage；
As V2 > (Vb1 ≠ Vb2) > V1, if when V2- △ V1 > (Vb1 ≠ Vb2) > V1, system can use constant-current charge
Mode, as V2 > Vb1 > V3, V3 > Vb2 > V1, system can be adjustment control object with the battery of low-voltage.
In an exemplary embodiment of the present invention, the charging current is according to the second voltage Vb2 with the preset time
Interval is adjusted for t seconds
The charging current is adjusted according to following relational expressions: (V2-Vb2)/(V2-V3) * I；
Wherein, I is preset current reference value.
In an exemplary embodiment of the present invention, system charging current can be according to cell voltage Vb2 between setting time
It was adjusted every t seconds, the relationship of charging current adjustment can be (V2-Vb2)/(V2-V3) * I.
In an exemplary embodiment of the present invention, system solves single battery by adaptively adjusting charge control mode
The asynchronous charging imbalance problem of voltage, the difference of voltage between single battery is minimized by the adjustment of charging current
Away from realizing battery capacity and be full of to greatest extent, improve battery life and improve user experience.
Example IV
The embodiment is on the basis of above-mentioned any embodiment, single battery limiting voltage when giving battery pack charging
Control the example scheme of processing.
In an exemplary embodiment of the present invention, the method can also include:
When the cell voltage of any one batteries is lower than the battery low limit voltage threshold VL, using constant voltage charging method
It charges to battery pack, with the activity of gradually activated batteries battery core, until the cell voltage of the batteries is higher than the trickle charge
After voltage threshold V1, according to the difference of voltage range locating for the cell voltage, the adaptive charged state for adjusting battery；
When the cell voltage for detecting any one batteries is continuously greater than or equal to VH- △ V2, charge closing driving, and
Into standby mode；Wherein, △ V2 is preset second voltage difference.
In an exemplary embodiment of the present invention, when user connects charging cable, system can continuously detect battery pack
Single battery voltage, if single battery voltage is lower than VL, system can be charged using constant voltage charging method to battery pack, by
The activity for walking activated batteries battery core does adaptive adjustment control according still further to according to cell voltage after cell voltage is higher than V1
Charging；It if system continuously detects single battery voltage more than or equal to Vh- △ V2, can be driven with charge closing, prompt to use
Family simultaneously enters standby mode.
In an exemplary embodiment of the present invention, which can be battery upper limit voltage threshold battery upper limit voltage threshold value
Lower bias-voltage difference, △ V=Vh* §, § are to be acquired by master control supply voltage VCC precision, divider resistance precision and modulus AD
The coefficient that influences of the factors such as resolution ratio.
In an exemplary embodiment of the present invention, when system is charged by battery pack at the control of single battery limiting voltage
Reason, solves the problems, such as that single battery brownout can not charge normal and single battery overtension leads to the wind overcharged
Danger, ensure that safety and the service life of battery, and improve user experience.
Embodiment five
The embodiment gives the battery voltage detection of single battery in battery pack on the basis of above-mentioned any embodiment
Embodiment of the method.
In an exemplary embodiment of the present invention, single battery voltage can be obtained with sampling in t seconds at a certain time interval
Vb1 and Vb2, continuous sampling n times, and sampled voltage average value is calculated, the mean voltage of the first battery Bat1 is (Vb11+
Vb12 ...+Vb1N)/N, the mean voltage of the second battery Bat2 is (Vb21+Vb22 ...+Vb2N)/N, as the detected
The cell voltage of one battery and the second battery.
In an exemplary embodiment of the present invention, the first battery Bat1 can be calculated with sampling in t0 seconds at a certain time interval
With the mean voltage of the second battery Bat2.
In an exemplary embodiment of the present invention, battery voltage sampling time interval t can be selected as 0.5-1.5 seconds, e.g., choosing
It selects 1 second；Continuous sampling times N can choose 3-7 times；For example, can choose 5 times；Between the time of mean voltage acquisition judgement
Can choose every t0 is 25-35 seconds, for example, can choose 30 seconds, battery charge time is longer It is not necessary to which continuous sampling, can drop
Low system power dissipation.
Embodiment six
The embodiment gives the detection circuit of single battery voltage in battery pack on the basis of above-mentioned any embodiment
Embodiment.
In an exemplary embodiment of the present invention, battery pack may include the first battery Bat1 and the second battery Bat2, the
One battery Bat1 and the second battery Bat2 series connection；Wherein, the anode of the first battery Bat1 is connected with the cathode of the second battery Bat2,
The cathode of first battery Bat1 is grounded；
The first divider resistance R1 and the second divider resistance R2 are in series between the anode and ground of second battery Bat2, wherein
First input and output I/O port of the main control unit of portable equipment is connected between the first divider resistance R1 and the second divider resistance R2；
Specifically, the first I/O port can be connected between the first divider resistance and the second divider resistance by controllable switch；First I/O port
The first filter resistance R3 can be set between controllable switch, one end of the second filter resistance R4 is connected to the first filter resistance
Between R3 and controllable switch Q1, other end ground connection；
The anode of first battery Bat1 is connected with the second I/O port of main control unit；Specifically, the first battery Bat1 and ground
Between be in series with the first filter capacitor C1, the second I/O port is connected between the anode of the first battery Bat1 and the first filter capacitor C1；
The third I/O port of main control unit is connected between the first divider resistance R1 and the second divider resistance R2, specific address,
It can connect and gone between Q1 and the second divider resistance R2 in controllable switch；
Second divider resistance R2 can be parallel with the second filter capacitor C2.
In an exemplary embodiment of the present invention, as shown in Fig. 2, the just extremely B1+ of the first battery Bat1, cathode are
The cathode BAT- of BAT-, the just extremely BAT+ of the second battery Bat2, cathode B1+, the first battery Bat1 are connect with ground GND.
In an exemplary embodiment of the present invention, main control unit can be by the first I/O port (such as IO1) and battery Bat1
Positive B1+ connection, the first AD sampling (i.e. the second I/O port IO2) detect obtained voltage Vb1, and Vb1 is the first battery Bat1 two
The voltage at end, capacitor C1 (i.e. the first filter capacitor) play filter action.
In an exemplary embodiment of the present invention, main control unit can pass through the anode of the first I/O port and the second battery Bat2
BAT+ connection, the 2nd AD sampling (i.e. third I/O port IO3) detect obtained voltage V0, and the voltage value V0 sampled is two section strings
Join the total voltage of battery, V0-Vb1 is battery Bat2 both end voltage Vb2；Capacitor C2 (i.e. the second filter capacitor) plays filtering and makees
With.
In an exemplary embodiment of the present invention, since the concatenated voltage of two batteries is greater than the power supply VCC of main control unit,
Therefore voltage division processing can be carried out using the first divider resistance R1 and the second divider resistance R2.
In an exemplary embodiment of the present invention, since fully charged single battery voltage is lower than the VCC of main control unit, because
This second I/O port can directly sample the voltage of the first battery Bat1 without voltage division processing.
In an exemplary embodiment of the present invention, it is designed by the detection control circuit of single battery voltage in battery pack,
It effectively can accurately detect to obtain the voltage of single battery, as the foundation of battery charging adjustment, ensure that battery life and safety,
Improve user experience.
It will appreciated by the skilled person that whole or certain steps, system, dress in method disclosed hereinabove
Functional module/unit in setting may be implemented as software, firmware, hardware and its combination appropriate.In hardware embodiment,
Division between the functional module/unit referred in the above description not necessarily corresponds to the division of physical assemblies；For example, one
Physical assemblies can have multiple functions or a function or step and can be executed by several physical assemblies cooperations.Certain groups
Part or all components may be implemented as by processor, such as the software that digital signal processor or microprocessor execute, or by
It is embodied as hardware, or is implemented as integrated circuit, such as specific integrated circuit.Such software can be distributed in computer-readable
On medium, computer-readable medium may include computer storage medium (or non-transitory medium) and communication media (or temporarily
Property medium).As known to a person of ordinary skill in the art, term computer storage medium is included in for storing information (such as
Computer readable instructions, data structure, program module or other data) any method or technique in the volatibility implemented and non-
Volatibility, removable and nonremovable medium.Computer storage medium include but is not limited to RAM, ROM, EEPROM, flash memory or its
His memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storages, magnetic holder, tape, disk storage or other
Magnetic memory apparatus or any other medium that can be used for storing desired information and can be accessed by a computer.This
Outside, known to a person of ordinary skill in the art to be, communication media generally comprises computer readable instructions, data structure, program mould
Other data in the modulated data signal of block or such as carrier wave or other transmission mechanisms etc, and may include any information
Delivery media.
Claims (10)
1. a kind of charge control method of portable equipment, which is characterized in that the portable equipment includes main control unit, voltage detecting
Circuit and the battery pack that can be charged；The voltage detecting circuit is connected with the main control unit, for detecting the battery pack
The voltage of middle battery；The described method includes:
Detect the cell voltage of every batteries in the battery pack；
The cell voltage of every batteries is compared to each other；
Charging modes are determined according to the relationship between the cell voltage of every batteries.
2. the charge control method of portable equipment according to claim 1, which is characterized in that described according to every economize on electricity
Relationship between the cell voltage in pond determines that charging modes include:
When the difference between the cell voltage of every batteries is less than preset voltage differences threshold value, according to the battery electricity
The locating voltage range of pressure is different, the adaptive charged state for adjusting battery；
When the difference between the cell voltage of every batteries is greater than or equal to the voltage differences threshold value, according to every economize on electricity
The charged state of the different adaptive adjustment batteries of voltage range locating for the cell voltage in pond.
3. the charge control method of portable equipment according to claim 2, which is characterized in that the method also includes: it will
The cell voltage is compared with preset one or more voltage thresholds, with voltage model locating for the determination cell voltage
It encloses；
The charged state includes: to stop charging, trickle charge, constant-current charge and constant-voltage charge；
The voltage threshold includes: battery low limit voltage threshold VL, battery upper limit voltage threshold value VH, trickle charge voltage threshold V1
With constant-current charge voltage threshold V2；
Wherein, VL < V1 < V2 < VH.
4. the charge control method of portable equipment according to claim 3, which is characterized in that described according to the battery electricity
The locating voltage range of pressure is different, and the adaptive charged state for adjusting battery includes:
It is right when the cell voltage is less than the trickle charge voltage threshold V1 or preset battery low limit voltage threshold VL
Battery carries out trickle charge；
When the cell voltage be greater than or equal to the trickle charge voltage threshold V1, and be less than or equal to the constant-current charge
When voltage threshold V2, constant-current charge is carried out to battery；
When the cell voltage is greater than the constant-current charge voltage threshold V2, and is less than the battery upper limit voltage threshold value VH,
Constant-voltage charge is carried out to battery；
When the cell voltage is greater than or equal to the battery upper limit voltage threshold value VH, stop charging.
5. the charge control method of portable equipment according to claim 6, which is characterized in that the battery pack includes having
The first battery of first voltage Vb1 and the second battery with second voltage Vb2；
The charged state of the different adaptive adjustment batteries of the voltage range according to locating for the cell voltage of every batteries includes:
It is adjustment control object with first battery, using trickle charge mode to described as Vb1 < V1, V1 < Vb2 < V2
The charging of the battery pack of first battery and second battery composition；And the first battery described in real-time detection and second battery
Voltage is switched to constant current charging method by trickle charge mode as Vb1 >=V1；
It is adjustment control object with first battery, using constant voltage charging method to described as Vb1>V2, V1<Vb2<V2
Battery pack charging is until battery voltage described in real-time detection of uniting in Vb2 >=V2, charging process；
As V1 < Vb1 < V2, V1 < Vb2 < V2, if V1 < Vb2 < V2- △ V1, V1 < Vb1 < V2- △ V1, wherein △ V1 is default
First voltage difference, using constant current charging method；It is adjustment with second battery if V3 < Vb1 < V2, V1 < Vb2 < V3
Control object, charging current are adjusted for t seconds at predetermined intervals according to the second voltage Vb2, wherein V3 is default
Intermediate threshold, between V1 and V2.
6. the charge control method of portable equipment according to claim 5, which is characterized in that the charging current is according to institute
It states second voltage Vb2 and is adjusted within t seconds at predetermined intervals and include:
The charging current is adjusted according to following relational expressions: (V2-Vb2)/(V2-V3) * I；
Wherein, I is preset current reference value.
7. the charge control method of portable equipment according to claim 3, which is characterized in that the method also includes:
When the cell voltage of any one batteries is lower than the battery low limit voltage threshold VL, using constant voltage charging method to electricity
Pond group charging, with the activity of gradually activated batteries battery core, until the cell voltage of the batteries is higher than the trickle charge voltage
After threshold value V1, according to the difference of voltage range locating for the cell voltage, the adaptive charged state for adjusting battery；
When the cell voltage for detecting any one batteries is continuously greater than or equal to VH- △ V2, charge closing driving, and enter
Standby mode；Wherein, △ V2 is preset second voltage difference.
8. the charge control method of portable equipment according to claim 1, which is characterized in that be arranged on the main control unit
There is middle fracture；
The method also includes: before real-time detection battery temperature, external interrupt is detected by the middle fracture, and detecting
Preset battery control system is waken up when to the external interrupt, to implement the battery charging control method.
9. the charge control method of portable equipment according to claim 1, which is characterized in that the method also includes:
After the battery control system is waken up, battery pack temperature is detected, when the battery pack temperature is in preset temperature model
It is determined to charge to the battery pack when enclosing interior, and detects the cell voltage of every batteries.
10. the charge control method of portable equipment according to claim 3, which is characterized in that
The battery low limit voltage threshold VL meets: 2.5V-2.8V；
The battery upper limit voltage threshold value VH meets: 4.2V-4.3V；
The trickle charge voltage threshold V1 meets: 2.8V-3.2V；
The constant-current charge voltage threshold V2 meets: 4.0V-4.2V.
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| CN201910547285.3A CN110299739A (en) | 2019-06-24 | 2019-06-24 | A kind of charge control method of portable equipment |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683439A (en) * | 2014-01-09 | 2014-03-26 | 北京沃特优科技有限公司 | System and method for controlling charge of lithium battery pack |
| CN103855747A (en) * | 2012-12-05 | 2014-06-11 | 凹凸电子（武汉）有限公司 | Battery system and battery charging method |
| CN108767928A (en) * | 2018-06-29 | 2018-11-06 | 深圳市安科讯实业有限公司 | More battery balancing methods and device |
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2019
- 2019-06-24 CN CN201910547285.3A patent/CN110299739A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855747A (en) * | 2012-12-05 | 2014-06-11 | 凹凸电子（武汉）有限公司 | Battery system and battery charging method |
| CN103683439A (en) * | 2014-01-09 | 2014-03-26 | 北京沃特优科技有限公司 | System and method for controlling charge of lithium battery pack |
| CN108767928A (en) * | 2018-06-29 | 2018-11-06 | 深圳市安科讯实业有限公司 | More battery balancing methods and device |
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Application publication date: 20191001 |