CN109818089A - A kind of battery current-limiting method and device - Google Patents
A kind of battery current-limiting method and device Download PDFInfo
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- CN109818089A CN109818089A CN201910054259.7A CN201910054259A CN109818089A CN 109818089 A CN109818089 A CN 109818089A CN 201910054259 A CN201910054259 A CN 201910054259A CN 109818089 A CN109818089 A CN 109818089A
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Abstract
The invention belongs to battery technology field, a kind of battery current-limiting method and device are provided, this method comprises: judging the relationship between the current remaining capacity of battery and preset first threshold and second threshold when battery is in discharge condition；If current remaining capacity is less than the first threshold and is greater than second threshold, the first current-limiting operation is carried out to battery；Wherein, first threshold is greater than the second threshold；If current remaining capacity is less than the second threshold, the second current-limiting operation is carried out to battery.The embodiment of the present invention is when the current remaining capacity of battery is less than the first threshold and is greater than the second threshold, the first current-limiting operation then is carried out to the battery, when current remaining capacity is less than the second threshold, the second current-limiting operation then is carried out to the battery, current-limiting operation can be carried out to battery according to the remaining capacity of battery in real time, to discharge with constant high current, the safety and reliability that battery uses is improved.
Description
Technical field
The invention belongs to battery technology field more particularly to a kind of battery current-limiting methods and device.
Background technique
The electrical equipment in all trades and professions (smart home, Aeronautics and Astronautics, the technical fields such as traffic) can pass through at present
The advantages that battery is powered, and lithium ion battery is to have extended cycle life, energy density is big and operating temperature is extensive is answered extensively
With.
Current battery in use, when carrying out charge or discharge with constant high current, can shorten the use of battery
Service life, more serious person can make battery directly scrap or generate hazard event in use, reduce the safety that battery uses
And reliability.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of battery current-limiting methods, it is intended to solve the peace that existing battery uses
The low problem low with reliability of full property.
The first aspect of the embodiment of the present invention provides a kind of battery current-limiting method, comprising:
When battery is in discharge condition, the current remaining capacity of the battery and preset first threshold and second are judged
Relationship between threshold value；
If the current remaining capacity is less than the first threshold and is greater than the second threshold, to the battery
Carry out the first current-limiting operation；Wherein, the first threshold is greater than the second threshold；
If the current remaining capacity is less than the second threshold, the second current-limiting operation is carried out to the battery.
In one embodiment, if the current remaining capacity be less than the second threshold, to the battery into
The second current-limiting operation of row, comprising:
If the current remaining capacity is less than the second threshold, the discharge current of the battery is set to zero.
In one embodiment, if the current remaining capacity is less than the first threshold and is greater than the second threshold
When, then the first current-limiting operation is carried out to the battery, comprising:
If the current residual electricity be less than the first threshold and be greater than the second threshold, obtain it is pre-stored most
Big discharge current value；
The battery discharge is calculated according to the control proportionality coefficient of the maximum discharge current value and battery discharge current
Current value.
In one embodiment, it is calculated according to the control proportionality coefficient of the maximum discharge current value and battery discharge current
The calculation formula of the current value of the battery discharge are as follows:
Wherein, describedFor the current value of battery discharge, the IallowIt is described for pre-stored maximum discharge current value
λ is the control proportionality coefficient of the battery discharge current.
In one embodiment, it is calculated according to the control proportionality coefficient of the maximum discharge current value and battery discharge current
The current value of the battery discharge, comprising:
The control ratio of the battery discharge current is calculated according to the current remaining capacity, first threshold and second threshold
Example coefficient；
The battery is calculated according to the control proportionality coefficient of the maximum discharge current value and the battery discharge current to put
The current value of electricity.
In one embodiment, the battery is calculated according to the current remaining capacity, first threshold and second threshold
The calculation formula of the control proportionality coefficient of discharge current are as follows:
Wherein, the λ is the control proportionality coefficient of battery discharge current, and the SOC is the current remaining capacity of battery,
SOC1For first threshold, SOC2For second threshold.
In one embodiment, the battery current-limiting method further include:
When battery is in charged state, the current remaining capacity of the battery and preset third threshold value and the 4th are judged
Relationship between threshold value；
If the current remaining capacity is greater than the third threshold value and is less than four threshold value, according to charging electricity
The control proportionality coefficient of stream and pre-stored pairs of maximum charging current values carry out third current-limiting operation to the battery；Wherein, described
Third threshold value is less than the 4th threshold value；
If the current remaining capacity is greater than four threshold value, the charging current of the battery is set to zero.
The second aspect of the embodiment of the present invention provides battery current-limiting apparatus, comprising:
First judgment module, for when battery be in discharge condition, judge the current remaining capacity of the battery in advance
If first threshold and second threshold between relationship；
First current limliting module, if being less than the first threshold for the current remaining capacity and being greater than second threshold
When value, then the first current-limiting operation is carried out to the battery；Wherein, the first threshold is greater than the second threshold；
Second current limliting module, if be less than the second threshold for the current remaining capacity, to the battery
Carry out the second current-limiting operation.
The third aspect of the embodiment of the present invention provides a kind of terminal device, including memory, processor and is stored in institute
The computer program that can be run in memory and on the processor is stated, the processor executes real when the computer program
The step of existing above method.
The fourth aspect of the embodiment of the present invention provides a kind of computer readable storage medium, computer readable storage medium
The step of being stored with computer program, the above method realized when above-mentioned computer program is executed by processor.
In embodiments of the present invention, when battery is in discharge condition, judge the current remaining capacity of the battery and pre-
If first threshold and second threshold between relationship；If the current remaining capacity is less than the first threshold and is greater than institute
When stating second threshold, then the first current-limiting operation is carried out to the battery；Wherein, the first threshold is greater than the second threshold；
If the current remaining capacity is less than the second threshold, the second current-limiting operation is carried out to the battery.Due in electricity
When the current remaining capacity in pond is less than the first threshold and is greater than the second threshold, then the first current limliting is carried out to the battery
Operation then carries out the second current-limiting operation to the battery when current remaining capacity is less than the second threshold, can be real-time
Current-limiting operation is carried out to battery according to the remaining capacity of battery and improves electricity to will not discharge with constant high current
The safety and reliability that pond uses.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is a kind of flow diagram for battery current-limiting method that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow diagram of battery current-limiting method provided by Embodiment 2 of the present invention；
Fig. 3 is a kind of flow diagram for battery current-limiting method that the embodiment of the present invention three provides；
Fig. 4 is a kind of structural schematic diagram for battery current-limiting apparatus that the embodiment of the present invention four provides
Fig. 5 is the structural schematic diagram for the terminal device that the embodiment of the present invention five provides.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, in case unnecessary details interferes description of the invention.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in following methods embodiment, respectively
The execution sequence of process should be determined by its function and internal logic, and the implementation process without coping with each embodiment constitutes any limit
It is fixed.
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
Embodiment one
A kind of battery current-limiting method provided in an embodiment of the present invention, can be applied to the terminal device comprising battery, Huo Zheying
For intelligent battery, as shown in Figure 1, the battery current-limiting method includes:
Step S101 judges the current remaining capacity of the battery and preset first when battery is in discharge condition
Relationship between threshold value and second threshold.
In embodiments of the present invention, above-mentioned battery can be monocell, battery pack or battery pack.When detecting that battery is in
When the state of electric discharge, obtains the current remaining capacity of battery and preset and between the first threshold stored and second threshold
Relationship.Judge that the relationship of the current remaining capacity of battery and first threshold and second threshold can be judge battery currently respectively
Size relation between remaining capacity and first threshold and second threshold.
Step S102, if the current remaining capacity is less than the first threshold and is greater than the second threshold,
First current-limiting operation is carried out to the battery；Wherein, the first threshold is greater than the second threshold.
In embodiments of the present invention, the first threshold for presetting and storing is greater than second threshold, when battery is current
When remaining capacity is less than first threshold and is greater than second threshold, i.e. the current remaining capacity of battery is in first threshold and second threshold
Between when, carrying out the first current-limiting operation to battery can be and limit the electric current of battery discharge, so that electric discharge is slow.
In one embodiment, battery the first current-limiting operation of progress can be to the discharge current of battery with one to above-mentioned
Fixed proportionality coefficient is controlled, so that the discharge current in the unit time of battery is reduced.
Step S103 carries out second to the battery if the current remaining capacity is less than the second threshold
Current-limiting operation.
In embodiments of the present invention, when the current remaining capacity of battery is less than second threshold, the residue electricity of battery is indicated
When flowing few, then the second current-limiting operation directly is carried out to battery, the second current-limiting operation is further after the first current-limiting operation
Carry out current limliting.
In one embodiment, if the current remaining capacity be less than the second threshold, to the battery into
The second current-limiting operation of row, comprising: if the current remaining capacity is less than the second threshold, by the electric discharge of the battery
Electric current is set to zero.Above-mentioned second current-limiting operation, which can be, is directly set to zero for the discharge current of battery.
It can be seen that in embodiments of the present invention, due to the current remaining capacity of battery be less than the first threshold and
When greater than the second threshold, then the first current-limiting operation is carried out to the battery, is less than described second in current remaining capacity
When threshold value, then the second current-limiting operation is carried out to the battery, current limliting can be carried out to battery according to the remaining capacity of battery in real time
Operation, to will not discharge with constant high current, improves the safety and reliability that battery uses.
Embodiment two
The present embodiment is the further explanation to embodiment one, and the present embodiment is the same as example 1 or similar place tool
Body can be found in the associated description of embodiment one, not repeat herein, as shown in Fig. 2, above-mentioned steps S102 further include:
Step S201 is obtained if the current residual electricity is less than the first threshold and is greater than the second threshold
Pre-stored maximum discharge current value.
In embodiments of the present invention, when the current remaining capacity of battery is less than first threshold and is greater than second threshold, i.e.,
When the current remaining capacity of battery is between first threshold and second threshold, pre-stored maximum discharge current value is obtained.
Step S202 calculates the electricity according to the control proportionality coefficient of the maximum discharge current value and battery discharge current
The current value of tank discharge.
In embodiments of the present invention, it can be calculated according to the control proportionality coefficient of maximum discharge current value and battery discharge current
The current value of battery discharge out, so that control battery can be gone to discharge according to the current value for calculating battery discharge.It is described
The control proportionality coefficient of battery discharge current can be the control proportionality coefficient of pre-stored fixation, or can also set basis
The current remaining capacity of battery calculates the control proportionality coefficient of battery discharge current.
In one embodiment, it is calculated according to the control proportionality coefficient of the maximum discharge current value and battery discharge current
The calculation formula of the current value of the battery discharge are as follows:
Wherein, describedFor the current value of battery discharge, the IallowIt is described for pre-stored maximum discharge current value
λ is the control proportionality coefficient of the battery discharge current.
In one embodiment, it is calculated according to the control proportionality coefficient of the maximum discharge current value and battery discharge current
The current value of the battery discharge, comprising: the electricity is calculated according to the current remaining capacity, first threshold and second threshold
The control proportionality coefficient of tank discharge electric current；According to the control ratio system of the maximum discharge current value and the battery discharge current
Number calculates the current value of the battery discharge.
In one embodiment, the battery is calculated according to the current remaining capacity, first threshold and second threshold
The calculation formula of the control proportionality coefficient of discharge current are as follows:
Wherein, the λ is the control proportionality coefficient of battery discharge current, and the SOC is the current remaining capacity of battery,
SOC1For first threshold, SOC2For second threshold.If the current remaining capacity of battery is equal with first threshold, battery discharge electricity
The control proportionality coefficient of stream is 1；If the current remaining capacity of battery is equal with second threshold, the control ratio of battery discharge current
Example coefficient is 0.
By as it can be seen that in embodiments of the present invention, due to being less than the first threshold and big in the current remaining capacity of battery
When the second threshold, then the first current-limiting operation is carried out to the battery, is less than second threshold in current remaining capacity
When value, then the second current-limiting operation is carried out to the battery, current limliting behaviour can be carried out to battery according to the remaining capacity of battery in real time
Make, to will not be discharged with constant high current.And two threshold values by being arranged can effectively avoid the mutation of electric current,
Start gradually to limit discharge current when the current remaining capacity of battery reaches first threshold value, when the current residual electricity of battery
Current limit value is set to reach 100% when reaching second threshold value, i.e. electric discharge allows electric current to be 0, uses so as to improve battery
Safety and reliability.
Embodiment three
The present embodiment is the further explanation to embodiment one and embodiment two, the present embodiment and embodiment one or embodiment
Two the same or similar places are not repeating, for details, reference can be made to embodiment one or the associated description of embodiment two such as Fig. 3 institute herein
Show, the battery current-limiting method further include:
Step S301 judges the current remaining capacity of the battery and preset third when battery is in charged state
Relationship between threshold value and the 4th threshold value.
In embodiments of the present invention, when detecting that battery is in charged state, obtain the current remaining capacity of battery with
It presets and the relationship between the third threshold value and the 4th threshold value that are stored.Judge the current remaining capacity of battery and third
The relationship of threshold value and the 4th threshold value can be and be judged between the remaining capacity that battery is current and third threshold value and the 4th threshold value respectively
Size relation.
Step S302, if the current remaining capacity is greater than the third threshold value and is less than four threshold value,
Third current-limiting operation is carried out to the battery according to the control proportionality coefficient of charging current and pre-stored pairs of maximum charging current values；
Wherein, the third threshold value is less than the 4th threshold value.
In embodiments of the present invention, the above-mentioned third threshold value for presetting and storing is less than the 4th threshold value, when battery is worked as
Preceding remaining capacity is greater than third threshold value and when less than four threshold value, i.e. the current remaining capacity of battery is in third threshold value and the 4th
When between threshold value, charges to battery and carry out third current-limiting operation.Specifically, carrying out third current-limiting operation to battery charging can be
The electric current of battery charging is limited, so that electric current charging is slow.
In one embodiment, third current-limiting operation is carried out to above-mentioned battery, can be to the charging current of battery with one
Fixed Charge Proportional coefficient is controlled, so that charging current is reduced in the unit time of battery.The battery charge
Control proportionality coefficient can be the control proportionality coefficient of pre-stored fixation, or can also be current remaining capacity, first
Threshold value and second threshold calculate the control ratio system of the control proportionality coefficient counting cell charging electric current of the battery charge
Number.
Step S303, if the current remaining capacity is greater than four threshold value, by the charging electricity of the battery
Stream is set to zero.
In embodiments of the present invention, when the current remaining capacity of battery is greater than four threshold values, the residue electricity of battery is indicated
Amount is sufficient, this directly carries out the 4th current-limiting operation to battery, and the 4th current-limiting operation, which can be, is set to the charging current of battery
Zero.
It can be seen that in the embodiment of the present application, due to the current remaining capacity of battery be greater than the third threshold value and
When less than four threshold value, then third current-limiting operation is carried out to the battery, is greater than the described 4th in current remaining capacity
When threshold value, then the 4th current-limiting operation is carried out to the battery, current limliting can be carried out to battery according to the remaining capacity of battery in real time
Operation, thus will not constant high current charge, improve the safety and reliability that battery uses.
Example IV
The embodiment of the present invention provides a kind of battery current-limiting apparatus, can be applied to the terminal device comprising battery, or application
In intelligent battery, only show for ease of description for executing the method and step in embodiment one, embodiment two or embodiment three
For the relevant part of the present invention, as shown in figure 4, the battery current-limiting apparatus 400 includes:
First judgment module 401, for when battery be in discharge condition, judge the current remaining capacity of the battery and
Relationship between preset first threshold and second threshold；
First current limliting module 402, if being less than the first threshold for the current remaining capacity and being greater than described the
When two threshold values, then the first current-limiting operation is carried out to the battery；Wherein, the first threshold is greater than the second threshold；
In one embodiment, the first current limliting module 402 includes:
Acquiring unit, if be less than the first threshold for the current residual electricity and be greater than the second threshold,
Obtain pre-stored maximum discharge current value；
Computing unit, for calculating institute according to the control proportionality coefficient of the maximum discharge current value and battery discharge current
State the current value of battery discharge.
In one embodiment, the calculation formula of the computing unit are as follows:
Wherein, describedFor the current value of battery discharge, the IallowIt is described for pre-stored maximum discharge current value
λ is the control proportionality coefficient of the battery discharge current.
In one embodiment, the computing unit includes:
First computation subunit, for according to the calculating of the current remaining capacity, first threshold and second threshold
The control proportionality coefficient of battery discharge current；
Second computation subunit, for the control ratio according to the maximum discharge current value and the battery discharge current
Coefficient calculates the current value of the battery discharge.
In one embodiment, the calculation formula of first computation subunit are as follows:
Wherein, the λ is the control proportionality coefficient of battery discharge current, and the SOC is the current remaining capacity of battery,
SOC1For first threshold, SOC2For second threshold.
Second current limliting module 403, if be less than the second threshold for the current remaining capacity, to the electricity
Pond carries out the second current-limiting operation.
In one embodiment, if the second current limliting module 403 is specifically used for the current remaining capacity and is less than institute
When stating second threshold, then the discharge current of the battery is set to zero.
In one embodiment, the battery current-limiting apparatus device 400 further include:
Second judgment module 404, for when battery be in charged state, judge the current remaining capacity of the battery and
Relationship between preset third threshold value and the 4th threshold value；
Third current limliting module 405, if being greater than the third threshold value for the current remaining capacity and being less than described the
When four threshold values, then the is carried out to the battery according to the control proportionality coefficient of charging current and pre-stored pairs of maximum charging current values
Three current-limiting operations；Wherein, the third threshold value is less than the 4th threshold value；
4th current limliting module 406, if be greater than four threshold value for the current remaining capacity, by the electricity
The charging current in pond is set to zero.
It can be seen that in embodiments of the present invention, due to the current remaining capacity of battery be less than the first threshold and
When greater than the second threshold, then the first current-limiting operation is carried out to the battery, is less than described second in current remaining capacity
When threshold value, then the second current-limiting operation is carried out to the battery, current limliting can be carried out to battery according to the remaining capacity of battery in real time
Operation, to will not discharge with constant high current, improves the safety and reliability that battery uses.
Embodiment five
As shown in figure 5, being the structural schematic diagram of terminal device provided in an embodiment of the present invention.The terminal device 500 wraps
It includes: processor 501, memory 502 and being stored in the meter that can be run in above-mentioned memory 502 and on above-mentioned processor 501
Calculation machine program 503.Above-mentioned processor 501 is realized when executing above-mentioned computer program 503 in above-mentioned battery current-limiting method embodiment
The step of, such as the method and step in embodiment one, the method and step in embodiment two and/or the method step in embodiment three
Suddenly.
Illustratively, above-mentioned computer program 503 can be divided into one or more units/modules, said one or
The multiple units/modules of person are stored in above-mentioned memory 502, and are executed by above-mentioned processor 501, to complete the present invention.On
Stating one or more units/modules can be the series of computation machine program instruction section that can complete specific function, the instruction segment
For describing implementation procedure of the above-mentioned computer program 503 in above-mentioned terminal device 500.For example, above-mentioned computer program 503
It can be divided into first judgment module, the first current limliting module, the second current limliting module, the second judgment module, third current limliting module,
The modules such as the 4th current limliting module, each module concrete function have been described in above-described embodiment four, are not repeating herein.
Above-mentioned terminal device 500 can be the terminal device comprising battery, the management equipment of intelligent battery or battery.It is above-mentioned
Terminal device 500 may include, but be not limited only to, processor 501, memory 502.It will be understood by those skilled in the art that Fig. 5 is only
It is only the example of terminal device 500, does not constitute the restriction to terminal device 500, may include more more or fewer than illustrating
Component perhaps combines certain components or different components, such as above-mentioned terminal device 500 can also be set including input and output
Standby, network access equipment, bus etc..
Alleged processor 501 can be central processing unit (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng.
Above-mentioned memory 502 can be the internal storage unit of terminal device 500, for example, terminal device 500 hard disk or
Memory.Above-mentioned memory 502 is also possible to the External memory equipment of above-mentioned terminal device 500, such as on above-mentioned terminal device 500
The plug-in type hard disk of outfit, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD)
Card, flash card (Flash Card) etc..Further, above-mentioned memory 502 can also be both interior including above-mentioned terminal device 500
Portion's storage unit also includes External memory equipment.Above-mentioned memory 502 is for storing above-mentioned computer program and above-mentioned terminal
Other programs and data needed for equipment 500.Above-mentioned memory 502, which can be also used for temporarily storing, have been exported or will
The data of output.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each function
Can unit, module division progress for example, in practical application, can according to need and by above-mentioned function distribution by different
Functional unit, module are completed, i.e., the internal structure of above-mentioned apparatus is divided into different functional unit or module, more than completing
The all or part of function of description.Each functional unit in embodiment, module can integrate in one processing unit, can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units, it is above-mentioned integrated
Unit both can take the form of hardware realization, can also realize in the form of software functional units.In addition, each function list
Member, the specific name of module are also only for convenience of distinguishing each other, the protection scope being not intended to limit this application.Above-mentioned terminal
The specific work process of unit in equipment, module, can refer to corresponding processes in the foregoing method embodiment, no longer superfluous herein
It states.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
In embodiment provided by the present invention, it should be understood that disclosed device and method can pass through others
Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of above-mentioned module or unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be with
In conjunction with or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or discussed
Mutual coupling or direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING of device or unit or
Communication connection can be electrical property, mechanical or other forms.
Above-mentioned 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.Some or all of unit therein can be selected to realize the embodiment of the present invention according to the actual needs
Purpose.
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 software functional units.
If above-mentioned integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, the present invention realizes above-described embodiment side
All or part of the process in method can also instruct relevant hardware to complete, above-mentioned computer by computer program
Program can be stored in a computer readable storage medium, and the computer program is when being executed by processor, it can be achieved that above-mentioned each
The step of a embodiment of the method.Wherein, above-mentioned computer program includes computer program code, and above-mentioned computer program code can
Think source code form, object identification code form, executable file or certain intermediate forms etc..Above-mentioned computer-readable medium can be with
It include: any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic disk, light that can carry above-mentioned computer program code
Disk, computer storage, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random
Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that above-mentioned computer
The content that readable medium includes can carry out increase and decrease appropriate according to the requirement made laws in jurisdiction with patent practice, such as
In certain jurisdictions, according to legislation and patent practice, computer-readable medium do not include be electric carrier signal and telecommunications letter
Number.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution should all
It is included within protection scope of the present invention.
Claims (10)
1. a kind of battery current-limiting method characterized by comprising
When battery is in discharge condition, the current remaining capacity of the battery and preset first threshold and second threshold are judged
Between relationship；
If the current remaining capacity is less than the first threshold and is greater than the second threshold, the battery is carried out
First current-limiting operation；Wherein, the first threshold is greater than the second threshold；
If the current remaining capacity is less than the second threshold, the second current-limiting operation is carried out to the battery.
2. battery current-limiting method according to claim 1, which is characterized in that if the current remaining capacity is less than described
When second threshold, then the second current-limiting operation is carried out to the battery, comprising:
If the current remaining capacity is less than the second threshold, the discharge current of the battery is set to zero.
3. battery current-limiting method according to claim 1, which is characterized in that if the current remaining capacity is less than described
First threshold and be greater than the second threshold when, then to the battery carry out the first current-limiting operation, comprising:
If the current residual electricity is less than the first threshold and is greater than the second threshold, obtains pre-stored maximum and put
Electric current value；
The electric current of the battery discharge is calculated according to the control proportionality coefficient of the maximum discharge current value and battery discharge current
Value.
4. battery current-limiting method according to claim 3, which is characterized in that according to the maximum discharge current value and battery
The control proportionality coefficient of discharge current calculates the calculation formula of the current value of the battery discharge are as follows:
Wherein, describedFor the current value of battery discharge, the IallowFor pre-stored maximum discharge current value, the λ is
The control proportionality coefficient of the battery discharge current.
5. battery current-limiting method according to claim 4, which is characterized in that according to the maximum discharge current value and battery
The control proportionality coefficient of discharge current calculates the current value of the battery discharge, comprising:
The control ratio system of the battery discharge current is calculated according to the current remaining capacity, first threshold and second threshold
Number；
The battery discharge is calculated according to the control proportionality coefficient of the maximum discharge current value and the battery discharge current
Current value.
6. battery current-limiting method according to claim 5, which is characterized in that according to the current remaining capacity, first
Threshold value and second threshold calculate the calculation formula of the control proportionality coefficient of the battery discharge current are as follows:
Wherein, the λ is the control proportionality coefficient of battery discharge current, and the SOC is the current remaining capacity of battery, SOC1For
First threshold, SOC2For second threshold.
7. battery current-limiting method according to any one of claims 1 to 6, which is characterized in that the battery current-limiting method is also
Include:
When battery is in charged state, the current remaining capacity of the battery and preset third threshold value and the 4th threshold value are judged
Between relationship；
If the current remaining capacity is greater than the third threshold value and is less than four threshold value, according to charging current
It controls proportionality coefficient and pre-stored pairs of maximum charging current values and third current-limiting operation is carried out to the battery；Wherein, the third
Threshold value is less than the 4th threshold value；
If the current remaining capacity is greater than four threshold value, the charging current of the battery is set to zero.
8. a kind of battery current-limiting apparatus characterized by comprising
First judgment module, for when battery is in discharge condition, judge the current remaining capacity of the battery with it is preset
Relationship between first threshold and second threshold；
First current limliting module, if being less than the first threshold for the current remaining capacity and being greater than the second threshold
When, then the first current-limiting operation is carried out to the battery；Wherein, the first threshold is greater than the second threshold；
Second current limliting module carries out the battery if be less than the second threshold for the current remaining capacity
Second current-limiting operation.
9. a kind of terminal device, including memory, processor and storage are in the memory and can be on the processor
The computer program of operation, which is characterized in that the processor realizes such as claim 1 to 7 when executing the computer program
The step of any one the method.
10. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In when the computer program is executed by processor the step of any one of such as claim 1 to 7 of realization the method.
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