CN105958603B - Battery charging method and device - Google Patents
Battery charging method and device Download PDFInfo
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- CN105958603B CN105958603B CN201610515595.3A CN201610515595A CN105958603B CN 105958603 B CN105958603 B CN 105958603B CN 201610515595 A CN201610515595 A CN 201610515595A CN 105958603 B CN105958603 B CN 105958603B
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Classifications
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- H02J7/0077—
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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
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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
- H01M10/443—Methods for charging or discharging in response to temperature
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- H02J7/0091—
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the invention provides a method and a device for charging a battery, wherein the method for charging the battery pre-stores a plurality of corresponding relations between different charging durations and charging currents of different battery charge states SOC at different temperatures, and comprises the following steps of: acquiring the temperature and SOC of the battery and the charged time length when the battery is charged; determining a first corresponding relation according to the temperature, the SOC and the charged time; determining a charging current according to the first corresponding relation; and charging the battery according to the charging current. According to the embodiment of the invention, the charging mode is more reasonable when the determined charging current is used for charging the battery, and the charging efficiency is higher when the battery is charged.
Description
Technical field
The present invention relates to the charging methods and device of battery technology field more particularly to a kind of battery.
Background technology
In power battery application aspect, energy regenerating is one of important technology of electric vehicle.In general I. C. engine steam
Che Shang, vehicle will produce a large amount of energy dissipations when braking or idling and fall, and electric vehicle can pass through energy regenerating skill
This portion of energy is converted to electric energy and is stored in battery by art.But due to existing in the energy stores that will be braked or idling generates
Larger charging current is will produce during battery, if being easy damage electricity using larger charging current for charging for a long time
Pond makes shorter battery life.
It charges the battery in the prior art by using smaller constant charge current.
In the implementation of the present invention, at least there are the following problems for inventor's discovery prior art：
For battery charging charging modes it is unreasonable, and for battery charging when charge efficiency it is relatively low.
Invention content
In view of this, the embodiment of the present invention provides a kind of charging method and device of battery, to solve in the prior art
Charging modes for battery charging are unreasonable, and for battery charging when the relatively low problem of charge efficiency.
For achieving the above object, on the one hand, an embodiment of the present invention provides a kind of charging methods of battery, deposit in advance
Different SOC (state of charge, battery state of charge) under storage different temperatures are in different charged duration and charging currents
Several correspondences, when charging for the battery, the method includes：
Charging duration when obtaining the temperature and SOC of the battery, and being charged for the battery；
According to the temperature, the SOC and the duration that charged, the first correspondence is determined；
According to first correspondence, charging current is determined；
It is that the battery charges according to the charging current.
The aspect and any possible implementation manners as described above, it is further provided a kind of realization method, according to
Charging current is after the battery is charged, and the method further includes：
Judge whether at least one parameter changes in the temperature and the SOC；
If at least one parameter changes in the temperature and the SOC, the numerical value of changed parameter is judged
Whether it is more than threshold value；
If the numerical value is more than the threshold value, the current temperature of the battery and current SOC are obtained；
According to the Current Temperatures, the current SOC and the duration that charged, the second correspondence is determined；
According to second correspondence, current charging current is determined；
It is that the battery charges according to the current charging current.
The aspect and any possible implementation manners as described above, it is further provided a kind of realization method is the battery
The energy used when charging includes：The gross energy that the vehicle of storage generates in braking or idling process；Or, vehicle braking or
The energy generated in real time during idling.
The aspect and any possible implementation manners as described above, it is further provided a kind of realization method, storage it is described
In several correspondences when temperature is identical with SOC, the more big then charging current of the duration that charged is smaller；
In several described correspondences of storage when the duration that charged is identical with SOC, the more high then charging current of temperature
It is bigger；
In several described correspondences of storage when temperature is identical with the duration that charged, the more big then charging currents of SOC
It is smaller；
Between the duration that charged in several described correspondences of storage under different temperatures and/or difference SOC
Time interval is identical or different.
The aspect and any possible implementation manners as described above, it is further provided a kind of realization method, for the electricity
Charging current when pond is charged is not higher than the determining charging current.
According to the temperature and SOC of the battery of acquisition in the embodiment of the present invention, and when being charged for the battery
Charging duration determines correspondence, is then determining charging current according to the correspondence, to be electricity according to the charging current
Pond is charged, in the embodiment of the present invention due to storage be different SOC under different temperatures difference charged duration with fill
The correspondence of electric current, thus determine that charging current size it is related with temperature, SOC and the duration that charged, further
, when mono- timing of temperature and SOC, charging current changes with the change for the duration that charged, therefore uses the charging determined
Charging modes are more reasonable when electric current is battery charging, and are charge efficiency higher when battery charges.
For achieving the above object, on the other hand, the embodiment of the present invention also provides a kind of charging unit of battery, in advance
Different battery state of charge SOC under storage different temperatures are in several corresponding passes of different charged duration and charging currents
System, described device include：
Acquisition module, when charging for the battery, the temperature for obtaining the battery and SOC, and be the electricity
Charging duration when pond is charged；
Determining module, for according to the temperature, the SOC and the duration that charged, determining the first correspondence；
The determining module is additionally operable to, according to first correspondence, determine charging current；
Charging module, for being that the battery charges according to the charging current.
The aspect and any possible implementation manners as described above, it is further provided a kind of realization method, described device is also
Including：
Judgment module is being after the battery is charged, for judging the temperature and institute according to the charging current
State whether at least one parameter in SOC changes；
The judgment module is additionally operable to judge hair if at least one parameter changes in the temperature and the SOC
Whether the numerical value of the parameter for changing is more than threshold value；
The acquisition module, if the numerical value is more than the threshold value, for obtaining the current temperature of the battery and working as
Preceding SOC；
The determining module is additionally operable to, according to the Current Temperatures, the current SOC and the duration that charged, determine
Second correspondence；
The determining module is additionally operable to, according to second correspondence, determine current charging current；
The charging module, for being that the battery charges according to the current charging current.
The aspect and any possible implementation manners as described above, it is further provided a kind of realization method is the battery
The energy used when charging includes：The gross energy that the vehicle of storage generates in braking or idling process；Or, vehicle braking or
The energy generated in real time during idling.
The aspect and any possible implementation manners as described above, it is further provided a kind of realization method, storage it is described
In several correspondences when temperature is identical with SOC, the more big then charging current of the duration that charged is smaller；
In several described correspondences of storage when the duration that charged is identical with SOC, the more high then charging current of temperature
It is bigger；
In several described correspondences of storage when temperature is identical with the duration that charged, the more big then charging currents of SOC
It is smaller；
Between the duration that charged in several described correspondences of storage under different temperatures and/or difference SOC
Time interval is identical or different.
The aspect and any possible implementation manners as described above, it is further provided a kind of realization method, for the electricity
Charging current when pond is charged is not higher than the determining charging current.
The temperature and SOC for the battery that determining module is obtained according to acquisition module in the embodiment of the present invention, and be the electricity
The duration of charging when pond is charged determines correspondence, then determines charging electricity according to the correspondence in determining module
Stream due to storage is not equality of temperature in the embodiment of the present invention so that charging module is that battery charges according to the charging current
The lower different SOC of degree in different charged duration and the correspondences of charging current, thus determine that charging current size
Related with temperature, SOC and the duration that charged, further, when mono- timing of temperature and SOC, charging current is with the duration that charged
Change and change, therefore the use of the charging current determined is that charging modes are more reasonable when battery charges, and are filled for battery
Charge efficiency higher when electric.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of charging method flow chart of battery in the embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of the charging unit of battery in the embodiment of the present invention.
Specific implementation mode
For a better understanding of the technical solution of the present invention, being retouched in detail to the embodiment of the present invention below in conjunction with the accompanying drawings
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, those of ordinary skill in the art obtained without 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 the purpose only merely for description specific embodiment, is not intended to be limiting
The present invention.In the embodiment of the present invention and "an" of singulative used in the attached claims, " described " and "the"
It is also intended to including most forms, unless context clearly shows that other meanings.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation of description affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate：Individualism A, exists simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, it is a kind of relationship of "or" to typically represent forward-backward correlation object.
It will be appreciated that though in embodiments of the present invention may using term first, second, correspondence described, but
These correspondences should not necessarily be limited by these terms.These terms are only used for correspondence being distinguished from each other out.For example, not departing from
In the case of range of embodiment of the invention, the first correspondence can also be referred to as the second correspondence, and similarly, second corresponds to
Relationship can also be referred to as the first correspondence.
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) ".
Embodiment one
In order to avoid the charging modes in the prior art for battery charging are unreasonable, and it is charge efficiency when battery charges
Relatively low problem, the embodiment of the present invention one propose a kind of charging method of battery, specifically as shown in Figure 1, the method can answer
For using in the scene that the energy that vehicle is generated in braking or idling is battery charging, prestore under different temperatures not
With SOC in different charged duration and several correspondences of charging current, when charging for the battery, the method can
Include the following steps：
Step 101, the charging duration when obtaining the temperature and SOC of the battery, and being charged for the battery.
Specifically, can be determined after determining temperature, SOC and the duration that charged according to pre-stored correspondence
Go out the charging current of battery, wherein the duration that charged refers to from duration when starting to charge for battery.
Since charging current is that have a relationship with temperature, SOC and the duration that charged, and because can according to the correspondence of storage
Know that the different durations that charged at a certain temperature and a certain SOC corresponds to different charging currents, it is therefore desirable to obtain battery
Temperature and SOC.
Since in the case of temperature and SOC determinations, the corresponding charging of the different durations of charging is electric when charging for battery
Stream is different, therefore the charging duration when also needing to determine to be charged for battery, to further determine that out battery
Charging current be the duration that charged when battery is charged refers to further time when starting to charge for battery and work as
Difference between the preceding time, wherein charged duration with residing for battery temperature and SOC it is unrelated, i.e., no matter whether correspondence is sent out
Changing, the difference between a length of time and current time when starting to charge for battery when having charged of acquisition, such as：
Temperature is 10 DEG C, SOC starts to charge for battery in the state of being 10%, a length of 0 when having charged at this time, correspondence
One correspondence, after charging process continue for 30 seconds, temperature becomes 20 DEG C, SOC 20%, then charging duration at this time
It it is 30 seconds, correspondence changes at this time, i.e., correspondence becomes the second correspondence, then the temperature obtained, SOC and
A length of 20 DEG C, 20% and 30 seconds when charging, and the second correspondence is determined as with the relationship of this temperature, SOC and the duration that charged.
Step 102, according to the temperature, the SOC and the duration that charged, the first correspondence is determined.
Specifically, since the parameter for including in correspondence has 4：Temperature, SOC, charged duration and charging current,
It is assured that out corresponding correspondence after determining temperature, SOC, the duration that charged, i.e., as 3 in a correspondence
After parameter determines, then can determine the 4th parameter according to correspondence, therefore determined in temperature, SOC and the duration that charged
Afterwards, then the correspondence where the temperature, SOC and the duration that charged also determines that.
Further, the duration of charging at the temperature and the SOC can convert, with the increasing for the duration that charged
Long, that is, the duration that charged constantly becomes larger, it is determined that correspondence also just changed, change in correspondence
The charging current determined afterwards also just changes, and further, when temperature and SOC are definite value, charging current is with having filled
The variation of electric duration and change, and need to obtain the charging duration constant in a certain temperature and a certain SOC in real time,
To determine charging current.
Step 103, according to first correspondence, charging current is determined.
Specifically, after determining correspondence, what charging current namely uniquely determined, and the charging current is
Determines according to actual conditions, it can not only ensure charge efficiency but also rational charging current can have been used to charge for battery.
Step 104, it is that the battery charges according to the charging current.
Charging current when charging for the battery is not higher than the determining charging current.
Specifically, in order to ensure charge efficiency, and the principle of battery is not damaged, the charging current determined is to work as cause
Permitted maximum charging current under condition, naturally it is also possible to the charging current less than the charging current value be selected to charge for battery.
Since the charging time can be continuously increased at a certain temperature and a certain SOC, with the increase for the duration that charged, SOC
It can change at least one parameter in temperature, i.e., the numerical value of at least one parameter can increase in temperature and SOC, become determining
After temperature and SOC after change, need according to after variation temperature and SOC under redefine charging current for battery, therefore, in root
It is after the battery is charged according to the charging current, the method further includes：
Judge whether at least one parameter changes in the temperature and the SOC；
If at least one parameter changes in the temperature and the SOC, the numerical value of changed parameter is judged
Whether it is more than threshold value；
If the numerical value is more than the threshold value, the current temperature of the battery and current SOC are obtained；
According to the Current Temperatures, the current SOC and the duration that charged, the second correspondence is determined；
According to second correspondence, current charging current is determined；
It is that the battery charges according to the current charging current.
Specifically, being at least one parameter in the temperature and SOC of battery after battery charging according to some charging current
It can change therewith, if the numerical value of the parameter after variation is more than threshold value, if the charging current before being continuing with is come for electricity
Pond charging is unreasonable, and also influences whether charge efficiency, therefore at least one parameter changes in temperature and SOC
Afterwards, when and the numerical value of changed parameter is more than threshold value, it is thus necessary to determine that go out temperature and SOC after variation, and current for electricity
The charging duration that pond is charged, such as：It is 10 seconds a length of in the charging when changing more than threshold value of temperature and SOC, that
Then it is based on 10 seconds a length of when having charged, and temperature after variation and SOC determine correspondence, the temperature after determining variation
After SOC and the duration that charged after degree, variation, correspondence can be determined according to above-mentioned 3 parameters, and then determine charging electricity
Stream.
Further, either in temperature, SOC and the duration of charging at a certain temperature and a certain SOC any one
Parameter values after Parameters variation can all cause the variation of charging current after more than certain value, and the reason of cause this variation
Be preset temperature, SOC, charged duration and the correspondence of charging current, when temperature, SOC and the duration that charged are therein
One parameter changes, then the final variation that can all cause charging current, when at least one parameter occurs in temperature and SOC
When variation, it is thus necessary to determine that temperature, the SOC after variation and the duration that charged gone out after variation finally determines charging current, and
It in the case of temperature and SOC constant, needs constantly to change correspondence according to duration has been charged, to determine charging electricity
Stream.
Wherein, the matching principle of 4 parameters includes：It is identical with SOC in temperature in several described correspondences of storage
When, the more big then charging current of the duration that charged is smaller；In duration and the SOC phases of having charged in several described correspondences of storage
Meanwhile the more high then charging current of temperature is bigger；It is identical with the duration that charged in temperature in several described correspondences of storage
When, the SOC the big, and then charging current is smaller；In several described correspondences of storage under different temperatures and/or difference SOC
The time interval to have charged between duration is identical or different.
Specifically, in the case where ensureing not damaging battery and charge efficiency can be increased, of above-mentioned 4 parameters
Can determines according to actual conditions with numerical value, but the numerical value matched will meet above-mentioned requirements.
Such as：Correspondence with same temperature and same SOC can be stored by the form of table, specifically such as
Shown in Tables 1 and 2：
Table 1
Table 2
In the correspondence of Tables 1 and 2 when temperature is identical with SOC, the more big then charging current of the duration that charged is smaller, into
One step, when temperature is identical with SOC, the smaller then charging current of the duration that charged is bigger.
Identical in charging time and SOC based on table 1, the more high then charging current of temperature is bigger, specific shape
At correspondence it is as shown in table 3：
Table 3
In temperature and identical charging time section, the SOC the big, and then charging current is smaller, the correspondence specifically formed such as table
Shown in 4：
Table 4
In several correspondences of storage, if temperature is identical, the variation of the time interval of SOC and the duration that charged
Rule is identical, can store several correspondences in the form of table 4, if temperature changes, but SOC and
The changing rule of the time interval of charging duration is constant, and it is as shown in table 5 can to form mapping table：
Table 5
If SOC is identical with the changing rule of the time interval for the duration that charged, corresponding charging current under different temperatures
It can be stored in a manner of as shown in table 4 and table 5, if the changing rule of the time interval for the duration that charged differs,
Correspondence can so be stored into form according to the changing rule of temperature and/or SOC, naturally it is also possible to individual
Correspondence is stored, and specific storage mode is determines according to actual conditions.
The energy used when charging for the battery includes：The total energy that the vehicle of storage generates in braking or idling process
Amount；Or, the energy that vehicle generates in real time during braking or idling.
Specifically, in order to ensure that energy is not wasted, the energy that can first generate vehicle in braking or idling process
It is stored, then the gross energy after storage is converted to by energy conversion device in power storage to battery；In order to ensure to the greatest extent
Amount it is fast convert energy into electric energy, just the energy of generation can be converted at once when vehicle braking or idling generate energy
Electric energy, which kind of specifically used conversion regime can be selected according to actual conditions, and storing process such as above method institute
Show that this is no longer going to repeat them.
According to the temperature and SOC of the battery of acquisition in the embodiment of the present invention, and when being charged for the battery
Charging duration determines correspondence, is then determining charging current according to the correspondence, to be electricity according to the charging current
Pond is charged, in the embodiment of the present invention due to storage be different SOC under different temperatures difference charged duration with fill
The correspondence of electric current, thus determine that charging current size it is related with temperature, SOC and the duration that charged, further
, when mono- timing of temperature and SOC, charging current changes with the change for the duration that charged, therefore uses the charging determined
Charging modes are more reasonable when electric current is battery charging, and are charge efficiency higher when battery charges.
For the technological thought of the present invention is further explained embodiment, in conjunction with specific application scenarios, to of the invention real
The technical solution for applying example illustrates, specifically, store the correspondence of above-mentioned 4 parameters in a device in advance, and it is current
Temperature be 20 DEG C, correspondence formed icon such as 5 institute of table, and obtain SOC be 15%, if that for battery charging
When charging time t≤t1, then charged for battery using the charging current of 240 peaces, and with the increase in charging time, still
Charging time t1 < t≤t2 when the numerical value of temperature and SOC are not above threshold value, and at this time, then using 160 peaces at this time
Charging current charges for battery, if with the increase in charging time, when the numerical value of temperature and SOC are more than never threshold value,
The use of the corresponding charging current in section where the duration that charged is so that battery charges, if the duration that charged is more than t5
Afterwards, then just the charging current of 8 peaces charges for battery always.
During charging for battery, if at least one parameter changes in temperature and SOC, and it is changed
The numerical value of parameter then determines charging current more than after threshold value according to table where the correspondence after variation, such as：The threshold of SOC
If value is set as SOC that 20%, 40%, 60%, 80%, 100% currently obtains in 0~20% range, according to 20%SOC
Correspondence determine charging current；If the SOC currently obtained, in 20~40% ranges, corresponding according to 40%SOC is closed
System determines charging current, and so on；And temperature is same, such as：The threshold value of temperature can be set as 10 DEG C, 20 DEG C, 30
DEG C, 40 DEG C, temperature determines charging current when between 10 DEG C~20 DEG C, according to 10 DEG C of correspondence, if the temperature currently obtained
Degree determines charging current when between 20 DEG C~30 DEG C according to 20 DEG C of correspondence, and so on.
Such as：When SOC in charging process if promoted from 15% to 35%, but temperature does not change, then
It needs to be determined that going out the duration of charging that has been carried out in the case where 40%SOC temperature is 20 DEG C to determine charging current, 40%
SOC, when charging that temperature has carried out in the case of being 20 DEG C a length of battery in the case where 20%SOC temperature is 20 DEG C into
The charging duration gone, if battery a length of t in the charging carried out in the case that 20%SOC temperature is 20 DEG C, and
T1 < t≤t2, then the duration of charging obtained is also t, and t1 < t≤t2, therefore according to the 40%SOC of acquisition, temperature is
20 DEG C, and correspondence that the duration t1 < t≤t2 of having charged are determined, it is battery charging to use the charging currents of 120 peaces at this time,
If with the increase in charging time, but the numerical value of temperature and SOC never have when being more than threshold value, then when using having charged
The corresponding charging current in section where long is that battery charges, if after the duration that charged is more than t5, just 6 pacified always
Charging current be battery charging.
If it is temperature change but SOC variation after numerical value never be more than threshold value when, such as：Temperature is from 20
DEG C become 30 DEG C, and SOC is still less than 20%, then charged for 20% corresponding table using SOC in table 4, by
It is t1 < t≤t2 in the charging time at this time, then using the charging current of 320 peaces to charge for battery at this time, if with
The increase of charging duration, but temperature and SOC never change, then the section where the duration that charged is used to correspond to
Charging current be that battery charges, if after the duration that charged is more than t5, just the charging currents of 80 peaces are electric always
It charges in pond.
When being above threshold value if it is the numerical value after temperature and SOC variations, such as：Temperature becomes 30 DEG C from 20 DEG C, and SOC
It is promoted from 15% to 35%, then being charged for 40% corresponding table using SOC in table 4, due to charging at this time
Shi Changwei t1 < t≤t2, then using the charging current of 240 peaces to charge for battery at this time, if with the increasing for the duration that charged
Add, but temperature and SOC never change, then being using the corresponding charging current in section where the duration that charged
Battery charges, if after the duration that charged is more than t5, just the charging currents of 60 peaces are battery charging always.
And so on, after being changed according to a parameter of the above method in temperature and SOC, according to the ginseng after variation
Number and the duration that charged finally determine corresponding charging current.
Embodiment two
The embodiment of the present invention two, which further provides, realizes the device embodiment of each step and method in above method embodiment,
As described in Figure 2, a kind of structural schematic diagram of the charging unit of the battery provided by the embodiment of the present invention two, described device can
For using in the scene that the energy that vehicle is generated in braking or idling is battery charging, prestore under different temperatures not
Duration has been charged in difference and several correspondences of charging current, described device include with battery state of charge SOC：
Acquisition module 21, when charging for the battery, the temperature for obtaining the battery and SOC, and be described
Charging duration when battery is charged；
Determining module 22, for according to the temperature, the SOC and the duration that charged, determining the first correspondence；
The determining module 22 is additionally operable to, according to first correspondence, determine charging current；
Charging module 23, for being that the battery charges according to the charging current.
Described device further includes：
Judgment module is being after the battery is charged, for judging the temperature and institute according to the charging current
State whether at least one parameter in SOC changes；
The judgment module is additionally operable to judge hair if at least one parameter changes in the temperature and the SOC
Whether the numerical value of the parameter for changing is more than threshold value；
The acquisition module, if the numerical value is more than the threshold value, for obtaining the current temperature of the battery and working as
Preceding SOC；
The determining module is additionally operable to, according to the Current Temperatures, the current SOC and the duration that charged, determine
Second correspondence；
The determining module is additionally operable to, according to second correspondence, determine current charging current；
The charging module, for being that the battery charges according to the current charging current.
The energy used when charging for the battery includes：The total energy that the vehicle of storage generates in braking or idling process
Amount；Or, the energy that vehicle generates in real time during braking or idling.
In several described correspondences of storage when temperature is identical with SOC, the more big then charging current of the duration that charged
It is smaller；
In several described correspondences of storage when the duration that charged is identical with SOC, the more high then charging current of temperature
It is bigger；
In several described correspondences of storage when temperature is identical with the duration that charged, the more big then charging currents of SOC
It is smaller；
Between the duration that charged in several described correspondences of storage under different temperatures and/or difference SOC
Time interval is identical or different.
Charging current when charging for the battery is not higher than the determining charging current.
The part that the embodiment of the present invention is not described in detail can refer to the related description to Fig. 1.
The temperature and SOC for the battery that determining module is obtained according to acquisition module in the embodiment of the present invention, and be the electricity
The duration of charging when pond is charged determines correspondence, then determines charging electricity according to the correspondence in determining module
Stream due to storage is not equality of temperature in the embodiment of the present invention so that charging module is that battery charges according to the charging current
The lower different SOC of degree in different charged duration and the correspondences of charging current, thus determine that charging current size
Related with temperature, SOC and the duration that charged, further, when mono- timing of temperature and SOC, charging current is with the duration that charged
Change and change, therefore the use of the charging current determined is that charging modes are more reasonable when battery charges, and are filled for battery
Charge efficiency higher when electric.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer read/write memory medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned includes：ROM, RAM, magnetic disc or
The various media that can store program code such as person's CD.
The apparatus embodiments described above are merely exemplary, wherein can be as the unit that separating component illustrates
Or may not be and be physically separated, the component shown as unit may or may not be physical unit, i.e.,
A place can be located at, or may be distributed at least two network element.It can be selected according to the actual needs
In some or all of module realize the purpose of the embodiment of the present invention.Those of ordinary skill in the art are not paying wound
In the case of the labour for the property made, you can to understand and implement.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of charging method of battery, which is characterized in that prestore the different battery state of charge i.e. SOC under different temperatures
In different charged duration and several correspondences of charging current, when charging for the battery, the method includes：
Charging duration when obtaining the temperature and SOC of the battery, and being charged for the battery；
According to the temperature, the SOC and the duration that charged, the first correspondence is determined；
According to first correspondence, charging current is determined；
It is that the battery charges according to the charging current.
2. method as described in claim 1, which is characterized in that after being charged for the battery according to the charging current,
The method further includes：
Judge whether at least one parameter changes in the temperature and the SOC；
If at least one parameter changes in the temperature and the SOC, judge changed parameter numerical value whether
More than threshold value；
If the numerical value is more than the threshold value, the current temperature of the battery and current SOC are obtained；
According to the Current Temperatures, the current SOC and the duration that charged, the second correspondence is determined；
According to second correspondence, current charging current is determined；
It is that the battery charges according to the current charging current.
3. method as described in claim 1, which is characterized in that be that the energy used when battery charging includes：The vehicle of storage
The gross energy generated in braking or idling process；Or, the energy that vehicle generates in real time during braking or idling.
4. method as described in claim 1, which is characterized in that in temperature and SOC phases in several described correspondences of storage
Meanwhile the more big then charging current of the duration that charged is smaller；
In several described correspondences of storage when the duration that charged is identical with SOC, the more high then charging current of temperature is bigger；
In several described correspondences of storage when temperature is identical with the duration that charged, the SOC the big, and then charging current is smaller；
The time between the duration that charged in several described correspondences of storage under different temperatures and/or difference SOC
It is spaced identical or different.
5. method as described in claim 1, which is characterized in that the charging current when charging for the battery is not higher than determination
The charging current.
6. a kind of charging unit of battery, which is characterized in that described device prestores the different battery charges under different temperatures
State, that is, SOC has charged duration in difference and several correspondences of charging current, described device include：
Acquisition module, when charging for the battery, the temperature for obtaining the battery and SOC, and for the battery into
Charging duration when row charging；
Determining module, for according to the temperature, the SOC and the duration that charged, determining the first correspondence；
The determining module is additionally operable to, according to first correspondence, determine charging current；
Charging module, for being that the battery charges according to the charging current.
7. device as claimed in claim 6, which is characterized in that described device further includes：
Judgment module is being after the battery is charged, for judging the temperature and the SOC according to the charging current
In at least one parameter whether change；
The judgment module is additionally operable to judge to become if at least one parameter changes in the temperature and the SOC
Whether the numerical value of the parameter of change is more than threshold value；
The acquisition module, if the numerical value is more than the threshold value, for obtaining the current temperature of the battery and current
SOC；
The determining module is additionally operable to, according to the Current Temperatures, the current SOC and the duration that charged, determine second
Correspondence；
The determining module is additionally operable to, according to second correspondence, determine current charging current；
The charging module, for being that the battery charges according to the current charging current.
8. device as claimed in claim 6, which is characterized in that be that the energy used when battery charging includes：The vehicle of storage
The gross energy generated in braking or idling process；Or, the energy that vehicle generates in real time during braking or idling.
9. device as claimed in claim 6, which is characterized in that in temperature and SOC phases in several described correspondences of storage
Meanwhile the more big then charging current of the duration that charged is smaller；
In several described correspondences of storage when the duration that charged is identical with SOC, the more high then charging current of temperature is bigger；
In several described correspondences of storage when temperature is identical with the duration that charged, the SOC the big, and then charging current is smaller；
The time between the duration that charged in several described correspondences of storage under different temperatures and/or difference SOC
It is spaced identical or different.
10. device as claimed in claim 6, which is characterized in that the charging current when charging for the battery is not higher than determination
The charging current.
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885994B (en) * | 2017-04-01 | 2019-05-24 | 湖南银杏数据科技有限公司 | Lithium battery remaining life fast detection method based on constant-voltage charge segment |
| CN107240729B (en) * | 2017-05-10 | 2019-10-22 | 上海蔚来汽车有限公司 | Method for charging batteries |
| CN107612075A (en) | 2017-09-27 | 2018-01-19 | 宁德时代新能源科技股份有限公司 | Battery charging method, device, equipment and storage medium |
| CN107612076A (en) * | 2017-09-27 | 2018-01-19 | 宁德时代新能源科技股份有限公司 | Battery charging method, device, equipment and storage medium |
| WO2020097917A1 (en) * | 2018-11-16 | 2020-05-22 | 深圳市欢太科技有限公司 | Charging method and apparatus, mobile terminal, and computer-readable storage medium |
| CN111196179B (en) * | 2018-11-16 | 2021-07-20 | 宝沃汽车（中国）有限公司 | Estimation method and estimation device for residual charging time of battery and vehicle |
| CN110901451B (en) * | 2019-10-24 | 2022-03-01 | 河南超威正效电源有限公司 | Battery charging management system and method for idling start-stop |
| CN111525631B (en) * | 2020-03-18 | 2023-11-10 | 武汉路特斯汽车有限公司 | Energy management method and device for lithium battery, electronic equipment and storage medium |
| CN111769608A (en) * | 2020-06-22 | 2020-10-13 | 上海龙旗科技股份有限公司 | Battery protection method and equipment of intelligent terminal |
| WO2022006694A1 (en) * | 2020-07-06 | 2022-01-13 | Beijing Didi Infinity Technology And Development Co., Ltd. | Systems and methods for adaptively charging a battery system |
| CN112595983B (en) * | 2021-03-03 | 2021-06-25 | 深圳市晶讯技术股份有限公司 | Charging electric quantity determination method and device, processor and storage medium |
| CN113131580A (en) * | 2021-04-21 | 2021-07-16 | 广东电网有限责任公司广州供电局 | Direct current power supply method and device and terminal equipment |
| WO2023028789A1 (en) * | 2021-08-30 | 2023-03-09 | 宁德时代新能源科技股份有限公司 | Temperature determination method, current threshold determination method, and battery management system |
| CN116097495B (en) | 2021-09-08 | 2024-02-20 | 宁德时代新能源科技股份有限公司 | Method for charging power battery and battery management system |
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