CN109148986A - A kind of charging method and device - Google Patents
A kind of charging method and device Download PDFInfo
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- CN109148986A CN109148986A CN201710508720.2A CN201710508720A CN109148986A CN 109148986 A CN109148986 A CN 109148986A CN 201710508720 A CN201710508720 A CN 201710508720A CN 109148986 A CN109148986 A CN 109148986A
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- battery
- charge
- terminal
- threshold
- charging
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The embodiment of the invention provides a kind of charging method and devices, it is related to battery technology field, the terminal connecting with charge power supply can be guaranteed when battery capacity is greater than floating charge saturation value, battery management system still can control charging circuit conducting, it realizes under the premise of not influencing the service life of battery, when guaranteeing that the battery disconnection of terminal is connect with charge power supply, guarantee that the battery capacity of terminal is sufficient, and then improve the cruising ability of the terminal.Wherein, this method comprises: firstly, obtaining the initial battery dump energy of the terminal；Then, the initial battery dump energy and first threshold；To, when the battery dump energy is less than first threshold, control charging circuit conducting, so that charge power supply charges to the end cell；Wherein, the first threshold is greater than floating charge saturation threshold.During technical solution provided by the invention is suitable for battery charging.
Description
[technical field]
The present invention relates to battery technology field more particularly to a kind of charging method and devices.
[background technique]
To in battery charging process, after battery, which reaches, completely to be filled, if battery still connects to power supply, battery will keep trickle to fill
Electricity, battery can enter floating charge state, and floating charge reduces the service life of battery.In order to avoid the appearance of floating charge, improve
The service life of battery, when being connect in the prior art for PC with charge power supply, when the battery management system of PC
When system detects current battery charge value lower than battery float intensity value, battery management system starting charging flow fills battery
Electricity, battery management system control stops charging after charging to full charge.
In realizing process of the present invention, at least there is following technical problem in inventor's discovery in the prior art:
For portable terminals such as mobile phone, MP4 player, tablet computers, usually stored by end cell
Energy realizes continuation of the journey, and above-mentioned this terminal is relatively high for battery durable ability requirement, therefore, in the service life for guaranteeing battery
Under the premise of, if directly full using the remaining capacity (state of charge, SOC) of end cell in the prior art and floating charge
This charging modes that charging is controlled with angle value relationship, when the electricity of the battery of the above-mentioned terminals such as mobile phone, MP4 player is greater than
When floating charge intensity value, charge power supply is not carried out the battery of terminal, and battery capacity is not up to full charge, causes terminal
Cruising ability is low.
[summary of the invention]
In view of this, can guarantee the end connected to power supply the embodiment of the invention provides a kind of charging method and device
When battery capacity is greater than floating charge saturation value, battery management system still can control charging circuit conducting at end, realize in not shadow
Under the premise of the service life for ringing battery, when guaranteeing that the battery disconnection of terminal is connect with charge power supply, guarantee the battery electricity of terminal
Amount is sufficient, and then improves the cruising ability of the terminal.
In a first aspect, being suitable for terminal the embodiment of the invention provides a kind of charging method, which comprises
Obtain the initial cells remaining capacity of the terminal；
Compare the initial cells remaining capacity and first threshold；
When the initial cells remaining capacity is less than first threshold, control charging circuit conducting, so that charge power supply
It charges to the end cell；
Wherein, the first threshold is greater than floating charge saturation threshold.
The aspect and any possible implementation manners as described above, it is further provided a kind of implementation, when described first
Beginning battery dump energy be less than first threshold when, control charging circuit conducting so that charge power supply to the end cell into
After row charging, further includes:
After determining charge cutoff, disconnects charging circuit and detect the battery dump energy of the terminal；
Compare the battery dump energy and floating charge saturation threshold；
When the battery dump energy is less than floating charge saturation threshold, charging circuit is connected, so that charge power supply is to institute
End cell is stated to charge.
The aspect and any possible implementation manners as described above, it is further provided a kind of implementation is filled when determination
After electricity cut-off, disconnect charging circuit and detect the terminal battery dump energy before, further includes:
Charged state is monitored, to judge whether to meet charge cutoff condition；
When judgement meets charge cutoff condition, stop charging to battery.
The aspect and any possible implementation manners as described above, it is further provided a kind of implementation, described in acquisition
Before the initial battery dump energy SOC of terminal, further includes:
Whether the voltage of the charging interface of the detection charging terminal itself changes；
When detecting that voltage changes, start charging management system.
The aspect and any possible implementation manners as described above, it is further provided a kind of implementation, described first
Threshold value is any value in 98% to 100% range of battery full charge, wherein the value of the first threshold does not include electricity
Pond full charge；The floating charge saturation threshold is any value in 80% to 95% range of battery full charge.
Second aspect, the embodiment of the invention provides a kind of charging unit, described device includes:
Acquiring unit, for obtaining the initial cells remaining capacity of terminal；
First comparing unit is used for the initial cells remaining capacity and first threshold；
First control unit, for when the initial cells remaining capacity is less than first threshold, control charging circuit to be led
It is logical, so that charge power supply charges to the end cell；
Wherein, the first threshold is greater than floating charge saturation threshold.
The aspect and any possible implementation manners as described above, it is further provided a kind of implementation, described device is also
Include:
Second control unit is remained for after determining charge cutoff, disconnecting charging circuit and detecting the battery of the terminal
Remaining electricity；
Second comparing unit, for the battery dump energy and floating charge saturation threshold；
The first control unit is also used to when the present battery remaining capacity is less than floating charge saturation threshold, and control is filled
Circuit conducting, so that charge power supply charges to the end cell.
The aspect and any possible implementation manners as described above, it is further provided a kind of implementation, described device is also
Include:
Monitoring unit, for monitoring charged state, to judge whether to meet charge cutoff condition；
Determination unit charges to battery for stopping when judgement meets charge cutoff condition.
The aspect and any possible implementation manners as described above, it is further provided a kind of implementation, described device is also
Include:
Detection unit, for detecting whether the voltage of charging interface for the terminal itself that charges changes；
Start unit, for starting charging management system when detecting that voltage changes.
The aspect and any possible implementation manners as described above, it is further provided a kind of implementation, which is characterized in that
The first threshold is any value in 98% to 100% range of battery full charge, wherein the value of the first threshold
It does not include battery full charge；The floating charge saturation threshold is any value in 80% to 95% range of battery full charge.
Technical solution provided in an embodiment of the present invention presets the first threshold for being greater than floating charge saturation threshold, in terminal
Complete moment with the connection of charge power supply, the battery management system of terminal immediately obtains the initial residual electricity of terminal, pass through by
The initial cells remaining capacity that terminal and charge power supply are got when connecting compared with first threshold, thus, in the initial of terminal
When battery dump energy is greater than the floating charge saturation threshold of terminal, battery management system still can control charging circuit conducting, with
So that charge power supply charges to end cell, by during terminal is connect with charge power supply, the cell tube of terminal
Reason system determines the mechanism of charging circuit conducting for the first time according to first threshold, realizes before the service life for not influencing battery
It puts, after terminal disconnection is connect with charge power supply, guarantees that the battery capacity of terminal is sufficient, and then improve the continuation of the journey energy of the terminal
Power.
[Detailed description of the invention]
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of flow diagram of charging method provided in an embodiment of the present invention；
Fig. 2 is the flow diagram of another charging method provided in an embodiment of the present invention；
Fig. 3 is the flow diagram of another charging method provided in an embodiment of the present invention；
Fig. 4 is the flow diagram of another charging method provided in an embodiment of the present invention；
Fig. 5 is the flow diagram of another charging method provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of charging unit provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of another charging unit provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of another charging unit provided in an embodiment of the present invention；
Fig. 9 is the structural schematic diagram of another charging unit provided in an embodiment of the present invention.
[specific embodiment]
For a better understanding of the technical solution of the present invention, being retouched in detail to the embodiment of the present invention with reference to the accompanying drawing
It states.
It will be appreciated that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning.
Depending on context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determination " or " in response to detection ".Similarly, depend on context, phrase " if it is determined that " or " if detection
(condition or event of statement) " can be construed to " when determining " or " in response to determination " or " when the detection (condition of statement
Or event) when " or " in response to detection (condition or event of statement) ".
The embodiment of the invention provides a kind of charging methods, are suitable for terminal, the flow chart of this method was as shown in Figure 1, should
Method includes:
101, the initial cells remaining capacity of terminal is obtained.
Wherein, executing subject is after terminal is connect with charge power supply, and charge power supply is not also to the electricity of the terminal
When pond is charged, the initial cells remaining capacity of terminal is obtained.The terminal is connect with charge power supply refers to terminal by filling
Electric appliance or other modes and charge power supply link together on spatial position, constitute the moment of an integral device.
Wherein, battery dump energy (State of Charge) can be used to indicate that battery electricity and battery it is specified
The relationship of capacity, the battery management system of terminal determine the size of the electricity of terminal according to battery dump energy.Initial cells are surplus
After remaining electricity refers to that terminal is connect with charge power supply, when charge power supply does not also charge to the terminal, the remaining electricity of end cell
Amount.
102, the initial cells remaining capacity and first threshold.
Wherein, the first threshold is used for when terminal is connect with charge power supply, determines whether the battery to terminal
It charges, first threshold is greater than floating charge saturation threshold.Wherein, floating charge saturation threshold will be illustrated in subsequent embodiment,
Details are not described herein.
Specifically, user when being charged using charger to terminal, is often encountered, charger contact is bad, charges
Spread of voltage, during being charged especially with vehicle-mounted, airborne equipment, the battery management system meeting of the terminals such as mobile phone
Connection charger is determined repeatedly, is completely filled in equipment in this way or close to when completely filling, charging can be repeated, battery is made to be in floating charge shape
State reduces battery and deteriorates the internal resistance of cell, therefore, in order to avoid this phenomenon is to the shadow of battery
It rings, charge value represented by the first threshold of setting is less than the rated capacity (i.e. battery full charge) of battery.In addition, in order to protect
Card is greater than floating charge saturation threshold when the battery capacity of terminal, and charge power supply still can charge to terminal, guarantees each time
When terminal and charge power supply disconnect, it can guarantee that the electricity of battery possesses enough electricity, so the first threshold of setting
The represented charge value of value is again as far as possible close to the rated capacity value of battery.Therefore, the first threshold can completely fill for battery
Any value in 98% to 100% range of electricity, wherein the value of the first threshold does not include battery full charge.
It should be noted that the value range of first threshold setting is only a kind of preferred scheme, first threshold setting
Value range can be according to different demands, the flexible settings such as different application condition, value range of the present invention for first threshold
Setting without limitation.
103, when the initial cells remaining capacity is less than first threshold, control charging circuit conducting, so that charging
Power supply charges to the end cell.
Wherein, when the charging circuit conducting refers to that terminal is connect with charge power supply, electric current flows into from charge power supply
Into the battery of the terminal.That is, the charging circuit conducting refers in charging circuit have electric current to flow through.
Wherein, when charge power supply charges to terminal, the battery management system of terminal can use constant-current constant-voltage charging
Mode, distribution charging modes or pulse charging manner etc. charge, and this is not limited by the present invention.
Supplementary explanation, when judging that initial cells remaining capacity is greater than first threshold, battery management system control is filled
Circuit is not turned on, and charge power supply does not charge to the end cell.
It should be noted that above-mentioned terminal can include but is not limited to personal digital assistant (Personal Digital
Assistant, PDA), radio hand-held equipment, tablet computer (Tablet Computer), mobile phone, MP4 player etc..
Charging method provided in an embodiment of the present invention presets the first threshold for being greater than floating charge saturation threshold, in terminal
Complete moment with the connection of charge power supply, the battery management system of terminal immediately obtains the initial residual electricity of terminal, pass through by
The initial cells remaining capacity that terminal and charge power supply are got when connecting compared with first threshold, thus, in the initial of terminal
When battery dump energy is greater than the floating charge saturation threshold of terminal, battery management system still can control charging circuit conducting, with
So that charge power supply charges to end cell, by during terminal is connect with charge power supply, the cell tube of terminal
Reason system determines the mechanism of charging circuit conducting for the first time according to first threshold, realizes before the service life for not influencing battery
It puts, after terminal disconnection is connect with charge power supply, guarantees that the battery capacity of terminal is sufficient, and then improve the continuation of the journey energy of the terminal
Power.
Further, in conjunction with foregoing schemes, after the end cell is fully charged, when still being connect for a long time with charge power supply,
The battery of terminal again can self discharge, therefore, in order to not influence battery service life, while guaranteeing that terminal and charge power supply are disconnected
When opening connection, the electricity of the end cell is sufficient, and the embodiment of the invention provides another implementations, as shown in Fig. 2, holding
Row step 103 is when the initial battery dump energy is less than first threshold, control charging circuit conducting, so that charging electricity
After source charges to the end cell, further includes:
104, it after determining charge cutoff, disconnects charging circuit and detects the battery dump energy of the terminal.
Wherein, disconnecting charging circuit includes two kinds of situations: the first is only to be filled by the battery management system control of terminal
Electric circuit breaker, and there are still the connections on spatial position for terminal and charge power supply, that is, control charging circuit and charge power supply not
It is connected, no current flows into charging circuit；Second is that the connection of terminal and charge power supply on spatial position disconnects.
Since terminal and charge power supply are when the connection on spatial position disconnects, there will be no charge power supplies to terminal charge
Process, therefore, the embodiment of the present invention does not consider such case.
105, the present battery remaining capacity and floating charge saturation threshold.
Wherein, floating charge saturation threshold is usually arranged as any value in 80% to 95% range of battery full charge.For
When guaranteeing that terminal disconnects the connection with charger, battery possesses enough electricity and is used to maintain to continue a journey, while reducing in terminal
In the current connection procedure of charge power supply, the number that battery charges repeatedly improves the service life of battery, floating charge saturation threshold
Value be preferably the 90% to 95% of battery full charge.
It should be noted that the value range of floating charge saturation threshold setting is only a kind of preferred scheme, floating charge saturation threshold
The value range of value setting can be according to different demands, and the flexible settings such as different application condition, the present invention is for floating charge saturation threshold
The setting of the value range of value is without limitation.
106, when the battery dump energy is less than floating charge saturation threshold, charging circuit is connected, so that charge power supply
It charges to the end cell.
Further, to realize aforesaid operations, determine whether end cell completes this and charge power supply connection procedure
Middle first time charging, is based on this purpose, and the embodiment of the invention provides another implementations, as shown in figure 3, executing step
104, after determining charge cutoff, before the present battery remaining capacity for disconnecting terminal described in charging circuit and real-time detection, go back
Include:
107, charged state is monitored, to judge whether to meet charge cutoff condition.
Wherein, charge cutoff condition can be with charge cutoff voltage, charging cut-off current, the current residual electricity value of battery
And/or at least one of charging time parameter indicates.
108, when judgement meets charge cutoff condition, stop charging to battery.
Specifically, in conjunction with being illustrated with the representation in charging time in above-mentioned charge cutoff condition.When terminal
Battery management system detects that battery is entered with given voltage UcIt carries out starting timing when constant voltage charging phase, when chargometer
When reaching specified preset time, then judgement meets charge cutoff condition, determines charge cutoff.
Alternatively, specifically, charge cutoff condition is with charging cut-off current come when indicating, the battery management system of terminal is real-time
The charging current for monitoring battery, when the charging current for monitoring battery is less than or equal to specified current flow IsWhen, then judge to meet
Charge cutoff condition, determines charge cutoff.
It should be noted that above formula concrete example is only based on the specific of the two different expression offers of charge cutoff condition
Realization process, it is specific real with two kinds of above-mentioned offer based on the specific implementation process of other different expressions of charge cutoff condition
Existing Principle of Process is identical, and details are not described herein by the present invention.
Supplementary explanation, when judgement is unsatisfactory for charge cutoff condition, charge power supply continues to carry out the battery of terminal
Charging, until the battery management system of terminal judges that the charged state of battery meets charge cutoff condition, stopping charging.
Further, in order to make the terminal learn whether itself connect with charge power supply, to determine the need for executing
Aforesaid operations, the embodiment of the present invention provide example another kind implementation, as shown in figure 4, obtaining the terminal executing step 101
Initial cells remaining capacity SOC before, further includes:
109, whether the voltage of the charging interface of the detection charging terminal itself changes.
When the charging interface of terminal itself passes through USB (Universal Serial Bus serial data bus) and charging electricity
Source is connected, or when connecting by other means with charge power supply, the battery management system of terminal can be from terminal itself
Charging interface detects given voltage value；And when terminal is not connected with charge power supply, the battery management system of terminal is from terminal
Battery management system can't detect voltage, thus, the battery management system of terminal can be by detecting the charging of the terminal itself
Whether the voltage of interface changes to judge whether terminal connect with charge power supply.
110, when detecting that voltage changes, start charging management system.
Whether the battery management system of terminal can be changed by detecting the voltage of the charging interface of the terminal itself
To judge whether terminal connect with charge power supply.
Specifically, the battery management system when terminal detects that the voltage of the charging interface of terminal itself is become by 0 volt of voltage
Turn to given voltage value, it is determined that the terminal is connect with charge power supply；When the battery management system of terminal detects filling for terminal
The voltage of electrical interface is 0 volt by the variation of given voltage value, it is determined that the terminal is disconnected with charge power supply.
It should be noted that above-mentioned specific descriptions are only a kind of implementation provided based on inventive concept, not as
Limitation of the invention, all thought illustrated based on the present invention, provided implementation is all in protection model of the invention
In enclosing.
Based on above-mentioned charging method, in conjunction with concrete application, the embodiment of the invention provides another charging methods wherein,
In the concrete application, first threshold is set as 99% that battery completely fills capacity, and floating charge saturation degree threshold value is set as battery and completely fills appearance
The 90% of amount, the charging modes of terminal are constant-current constant-voltage charging.
The flow chart of the charging method such as Fig. 5, this method specifically include:
Step 1. obtains the initial cells remaining capacity of the terminal when terminal connects charger.
Step 2. determines whether initial cells remaining capacity is less than or equal to 99%.If so, thening follow the steps 3, otherwise hold
Row step 5.
Step 3. charges to terminal.
Wherein, charging process are as follows: charged with the constant current that electric current is specified charging current Ic, until cell voltage reaches
Voltage rating Uc, charging process variation are the constant-voltage charge that voltage is rated charging voltage Uc.
Step 4. judges whether to meeting charge cutoff condition.If not satisfied, thening follow the steps 3；It is no to then follow the steps 5.
Wherein, charge cutoff condition is that the charging current of constant-voltage charge is less than or equal to cut-off current Is.
Step 5. disconnects charging circuit, if charger continues to connect at this time, the present battery of terminal described in real-time detection is surplus
Remaining electricity.
Whether step 6. judges the present battery remaining capacity of terminal less than 90%.If so, thening follow the steps 3；If it is not, then
Execute step 5.
Charging method provided in an embodiment of the present invention presets the first threshold for being greater than floating charge saturation threshold, in terminal
Complete moment with the connection of charge power supply, the battery management system of terminal immediately obtains the initial residual electricity of terminal, pass through by
The initial cells remaining capacity that terminal and charge power supply are got when connecting compared with first threshold, thus, in the initial of terminal
When battery dump energy is greater than the floating charge saturation threshold of terminal, battery management system still can control charging circuit conducting, with
So that charge power supply charges to end cell, by during terminal is connect with charge power supply, the cell tube of terminal
Reason system determines the mechanism of charging circuit conducting for the first time according to first threshold, realizes before the service life for not influencing battery
It puts, after terminal disconnection is connect with charge power supply, guarantees that the battery capacity of terminal is sufficient, and then improve the continuation of the journey energy of the terminal
Power.
Based on above-mentioned charging method, the embodiment of the invention also provides a kind of charging units, are suitable for terminal, the device
Structural schematic diagram is as shown in fig. 6, the device includes:
Acquiring unit 21, for obtaining the initial cells remaining capacity of the terminal.
First comparing unit 22 is used for the initial cells remaining capacity and first threshold.
Wherein, the first threshold is greater than floating charge saturation threshold.
First control unit 23, for controlling charging circuit when the initial cells remaining capacity is less than first threshold
Conducting, so that charge power supply charges to the end cell.
Optionally, as shown in fig. 7, the device further include:
Second control unit 24, for after determining charge cutoff, disconnecting charging circuit and detecting the battery of the terminal
Remaining capacity.
Second comparing unit 25, for the battery dump energy and floating charge saturation threshold.
The first control unit 23 is also used to the control charging when the battery dump energy is less than floating charge saturation threshold
Circuit conducting, so that charge power supply charges to the end cell.
Optionally, as shown in figure 8, the device further include:
Monitoring unit 26, for monitoring charged state, to judge whether to meet charge cutoff condition.
Determination unit 27 charges to battery for stopping when judgement meets charge cutoff condition.
Optionally, as shown in figure 9, the device further include:
Detection unit 28, for detecting whether the voltage of charging interface for the terminal itself that charges changes；
Start unit 29, for starting charging management system when detecting that voltage changes.
Optionally, the first threshold is any value in 98% to 100% range of battery full charge, wherein
The value of the first threshold does not include battery full charge；The floating charge saturation threshold be battery full charge 80% to
Any value in 95% range.
Charging unit provided in an embodiment of the present invention presets the first threshold for being greater than floating charge saturation threshold, in terminal
Complete moment with the connection of charge power supply, the battery management system of terminal immediately obtains the initial residual electricity of terminal, pass through by
The initial cells remaining capacity that terminal and charge power supply are got when connecting compared with first threshold, thus, in the initial of terminal
When battery dump energy is greater than the floating charge saturation threshold of terminal, battery management system still can control charging circuit conducting, with
So that charge power supply charges to end cell, and then by during terminal is connect with charge power supply, the electricity of terminal
Pond management system determines the mechanism of charging circuit conducting for the first time according to first threshold, realizes in the service life for not influencing battery
Under the premise of after terminal disconnection connect with charge power supply, guarantee the battery capacity abundance of terminal, and then improve the continuation of the journey of the terminal
Ability.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided by the present invention, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or group
Part can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown
Or the mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer
It is each that device (can be personal computer, server or network equipment etc.) or processor (Processor) execute the present invention
The part steps of embodiment the method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-
Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. it is various
It can store the medium of program code.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (10)
1. a kind of charging method, which is characterized in that the described method includes:
Obtain the initial cells remaining capacity of terminal；
Compare the initial cells remaining capacity and first threshold；
When the initial cells remaining capacity is less than first threshold, control charging circuit conducting, so that charge power supply is to institute
End cell is stated to charge；
Wherein, the first threshold is greater than floating charge saturation threshold.
2. the method according to claim 1, wherein being less than first threshold when the initial cells remaining capacity
When, control charging circuit conducting, so that after charge power supply charges to the end cell, further includes:
After determining charge cutoff, disconnects charging circuit and detect the battery dump energy of the terminal；
Compare the battery dump energy and floating charge saturation threshold；
When the battery dump energy is less than floating charge saturation threshold, charging circuit is connected, so that charge power supply is to the end
End battery charges.
3. according to the method described in claim 2, it is characterized in that, disconnecting charging circuit after determining charge cutoff and examining
It surveys before the battery dump energy of the terminal, further includes:
Charged state is monitored, to judge whether to meet charge cutoff condition；
When judgement meets charge cutoff condition, stop charging to battery.
4. according to the method described in claim 3, it is characterized in that, in the initial cells remaining capacity SOC for obtaining the terminal
Before, further includes:
Whether the voltage of the charging interface of the detection charging terminal itself changes；
When detecting that voltage changes, start charging management system.
5. according to claim 1 to any one method described in 4, which is characterized in that the first threshold is battery full charge
98% to 100% range in any value, wherein the value of the first threshold does not include battery full charge；It is described floating
Fill any value in 80% to 95% range that saturation threshold is battery full charge.
6. a kind of charging unit, which is characterized in that described device includes:
Acquiring unit obtains the initial cells remaining capacity of terminal；
First comparing unit is used for the initial cells remaining capacity and first threshold；
First control unit, for controlling charging circuit conducting when the initial cells remaining capacity is less than first threshold, with
So that charge power supply charges to the end cell；
Wherein, the first threshold is greater than floating charge saturation threshold.
7. device according to claim 6, which is characterized in that described device further include:
Second control unit is used for after determining charge cutoff, is disconnected charging circuit and is detected the remaining battery electricity of the terminal
Amount；
Second comparing unit, for the battery dump energy and floating charge saturation threshold；
The first control unit is also used to when the present battery remaining capacity is less than floating charge saturation threshold, control charging electricity
Road conducting, so that charge power supply charges to the end cell.
8. device according to claim 7, which is characterized in that described device further include:
Monitoring unit, for monitoring charged state, to judge whether to meet charge cutoff condition；
Determination unit charges to battery for stopping when judgement meets charge cutoff condition.
9. device according to claim 8, which is characterized in that described device further include:
Detection unit, for detecting whether the voltage of charging interface for the terminal itself that charges changes；
Start unit, for starting charging management system when detecting that voltage changes.
10. any one device according to claim 6 to 9, which is characterized in that the first threshold is battery full charge
98% to 100% range in any value, wherein the value of the first threshold does not include battery full charge；It is described floating
Fill any value in 80% to 95% range that saturation threshold is battery full charge.
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| TWI693167B (en) * | 2019-02-19 | 2020-05-11 | 驊曜科技有限公司 | Method for displaying residual electricity of a vehicle during charging and operation |
| WO2021078034A1 (en) * | 2019-10-24 | 2021-04-29 | 金龙联合汽车工业（苏州）有限公司 | Method for preventing overvoltage caused by charging power battery multiple times |
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