CN107785946A - Charging current control method and its system - Google Patents
Charging current control method and its system Download PDFInfo
- Publication number
- CN107785946A CN107785946A CN201610799534.4A CN201610799534A CN107785946A CN 107785946 A CN107785946 A CN 107785946A CN 201610799534 A CN201610799534 A CN 201610799534A CN 107785946 A CN107785946 A CN 107785946A
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- Prior art keywords
- battery
- temperature
- charging current
- charging
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
-
- 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
Abstract
The embodiment of the present invention provides a kind of charging current control method and its system, and the charging current supplied to battery can be adjusted according to the temperature of battery.Charging current control system includes charhing unit, temperature sensor and microcontroller.Charhing unit supplies charging current to battery.Temperature sensor constantly senses the temperature of battery.Microcontroller receives the temperature of the battery measured by temperature sensor, and judges whether the temperature of the battery measured by temperature sensor is more than or equal to a temperature alarm.If microcontroller judges that the temperature of measured battery is less than temperature alarm, microcontroller does not adjust the charging current that charhing unit is supplied to battery；And if microcontroller judges that the temperature of measured battery is more than or equal to temperature alarm, the charging current of battery is supplied to according to the look-up table of acquiescence or formula control charhing unit adjustment.This method can significantly save the charging interval, and then improve charge efficiency without temporarily ceasing the charging to battery because battery temperature is too high.
Description
Technical field
The present invention relates to a kind of charging current control method and its system, also, further relate to a kind of charging in battery
Charging current control methods and its system of the Cheng Zhongneng according to the adjustment of the temperature of battery supplied to the charging current of battery.
Background technology
In general, during being charged to battery, the temperature of battery can little by little rise.In order to avoid battery
Because temperature is too high and impaired, when the temperature of battery reaches a temperature alarm given tacit consent to, it is necessary to which offer charging is be provided
Electric current is to battery.When a safe temperature given tacit consent to is down at a temperature of waiting battery, then recover to provide charging current to battery.
Therefore, in charging process, if environment temperature is higher, it will cause charging current is constantly cut off to recover to carry again
For.It refer to Fig. 1, Fig. 1 is to represent to be supplied to charging current, battery temperature and the charging of battery according to depicted in prior art
The curve map of time Relationship.In Fig. 1, C1 is to represent to provide in charging process to the curve of the charging current of battery, T1
To represent the curve of the temperature of battery in charging process.As shown in figure 1, at first battery is carried out by about 2800 milliamperes of charging current
Charging, but as battery temperature rises to 45 degree (that is, reaching temperature alarm) about Celsius, in order to avoid battery damage, charging electricity
Stream is just temporarily cut off (that is, charging current is down to zero).Then, 39.5 degree about Celsius are down at a temperature of battery (i.e.,
Drop to security warning temperature), that is, recover to provide charging current to battery, continue the charging current with about 2800 milliamperes to battery
Charged.Such iterative cycles so that the time of whole charging process is extended, and charge efficiency is bad.
The content of the invention
The present invention provides a kind of charging current control method and its system, is extended with solving the charging interval in the prior art
The problem of causing charging effect bad.
The embodiment of the present invention discloses a kind of charging current control method.In the charging process of battery, the control of this charging current
Method can adjust the charging current supplied to battery according to the temperature of battery.This charging current control method includes：Constantly feel
Survey the temperature of battery；Judge whether the temperature of measured battery is more than or equal to a temperature alarm；If the temperature of measured battery
Degree is less than temperature alarm, then does not adjust the charging current supplied to battery；And if the temperature of measured battery is more than or equal to
Temperature alarm, then the charging current of battery is supplied to according to the look-up table of acquiescence or formula adjustment.
In the charging current control method of one embodiment of the invention, the formula is I (T)=A*I0*(TMAX-T)/
(TMAX-TA), wherein T is the temperature of the battery, and I (T) is to be provided under temperature T to the charging current of the battery, A
For a regulation coefficient, I0The unjustified charging current, T when being less than the temperature alarm for the temperature of the batteryMAXFor
One maximum temperature of battery described in the charging process of the battery, and TAFor the temperature alarm.
In the charging current control method of one embodiment of the invention, this charging current control method also includes：When described
When cell voltage reaches a default voltage, one constant voltage of supply gives the battery to be charged so that provides to the battery
The charging current be gradually reduced；And until the charging current provided to the battery drops to a predetermined current
When, judge the battery charging complete and stop supplying the charging current to the battery.
A kind of charging current control system is also disclosed in the embodiment of the present invention.In the charging process of battery, this charging current
Control system can adjust the charging current supplied to battery according to the temperature of battery.It is single that this charging current control system includes charging
Member, temperature sensor and microcontroller.Charhing unit is all connected to battery with temperature sensor.Charhing unit supplies charging current
So far battery, and temperature sensor constantly senses the temperature of battery.Microcontroller is connected to charhing unit and temperature sensor
Between.Microcontroller receives the temperature of the battery measured by temperature sensor, and judges the battery measured by temperature sensor
Whether temperature is more than or equal to a temperature alarm.It is described that if microcontroller judges that the temperature of the battery measured by temperature sensor is less than
Temperature alarm, then microcontroller do not adjust charhing unit be supplied to battery charging current.However, if microcontroller judges temperature
The temperature of battery measured by sensor is more than or equal to temperature alarm, then controls charhing unit according to the look-up table of acquiescence or formula
Charging current of the adjustment supplied to battery.
In the charging current control system of one embodiment of the invention, the formula be I (T)=A*I0* (TMAX-T)/
(TMAX-TA), wherein T is the temperature of the battery, and I (T) is to be provided under temperature T to the charging current of the battery, A
For a regulation coefficient, I0 is that the temperature of the battery is less than the charging current unjustified during the temperature alarm, TMAX
One maximum temperature of battery described in the charging process for the battery, and TA is the temperature alarm.
In the charging current control system of one embodiment of the invention, this charging current control system also includes voltage sensor
Device.Voltage sensor is connected between the battery and the microcontroller, constantly to sense the voltage of the battery, and
The voltage of the measured battery is sent to the microcontroller.When the microcontroller judges the voltage sensor institute
When the voltage of the battery measured reaches a default voltage, charhing unit described in the microprocessor control supplies a constant electricity
Pressure gives the battery to be charged so that provides to the charging current of the battery and is gradually reduced.Until providing to described
When the charging current of battery drops to a predetermined current, the microcontroller judges the battery charging complete and controls institute
State charhing unit and stop supplying the charging current to the battery.
In summary, the charging current control technology disclosed in the embodiment of the present invention improves traditional charging current control skill
In art electric current can with battery temperature repeatedly rise and fall and repeatedly be cut off with recover situation.It is provided by the present invention to fill
Electric current control method can adjust charging current with system with the change of battery temperature.Even if the temperature of battery is gradually increasing,
Also it can constantly provide charging current to be charged without the cut-out of fully charging current to battery, can effectively be lifted in fact
Charge efficiency.
For the enabled feature and technology contents for being further understood that the present invention, refer to below in connection with the present invention specifically
Bright and accompanying drawing, but these explanations are only used for illustrating the present invention with Figure of description, rather than the interest field of the present invention is appointed
What limitation.
Brief description of the drawings
Fig. 1 be according to depicted in prior art with represents be supplied to battery charging current, battery temperature and charging interval
Between relation curve map.
Fig. 2 is the flow chart of the charging current control method according to depicted in an exemplary embodiments of the invention.
Fig. 3 is the block diagram of the charging current control system according to depicted in an exemplary embodiments of the invention.
Fig. 4 is to represent to be supplied to charging current, the battery temperature of battery according to depicted in an of the invention exemplary embodiments
The curve map of relation between degree and charging interval.
Embodiment
Various exemplary embodiments will be more fully described referring to Figure of description below, shown in Figure of description
Some exemplary embodiments.However, concept of the present invention may embody in many different forms, and should not be construed as limited by herein
Middle illustrated exemplary embodiments.Specifically, there is provided these exemplary embodiments cause the present invention will be it is detailed and complete,
And the category for concept of the present invention fully being passed on to those skilled in the art.In various figures, similar numeral indicates class all the time
Like component.
First, the charging current control method provided by the present invention of the present invention will be illustrated with being with multiple embodiments below
System.By such a charging current control method and system, during battery charges, charging current will not be because of battery temperature
Spend high and be cut off.That is, by such a charging current control method and system, during battery charges, no
It can need to suspend the charging action for carrying out battery because the temperature of battery is too high.
(embodiment of charging current control method)
The charging current control method that the present embodiment is provided is to the battery that charges, such as：Lithium battery, Ni-MH battery ...
Deng, but the present invention is not intended to limit in this.In the charging process of battery, charging current control method meeting that the present embodiment is provided
Supplied charging current is adjusted according to the temperature for the battery being electrically charged.In order to which have a clear understanding of that the present embodiment provided fills
Electric current control method, please also refer to Fig. 2, Fig. 2 is the charging current controlling party according to depicted in exemplifying embodiments
The flow chart of method.As shown in Fig. 2 charging current control method 200 is main through the following steps that specific implementation：Step S201：
Constantly sense the temperature of battery；Step S202：Judge whether the temperature of measured battery is more than or equal to temperature alarm；Step
S203：If the temperature of measured battery is less than temperature alarm, the charging current supplied to battery is not adjusted；Step S204：
If the temperature of measured battery is more than or equal to temperature alarm, battery is supplied to according to the look-up table of acquiescence or formula adjustment
Charging current；Step S205：When cell voltage reaches a default voltage, supply constant voltage gives battery to be charged so that
There is provided to the charging current of battery and be gradually reduced；And step S206：Until providing the charging current to battery, to drop to one pre-
If during electric current, judge battery charging complete and stop supplying charging current to battery.
Each step in foregoing charging current control method 200 described further below.It is foregoing for convenience of description to fill
Each step in electric current control method 200, in addition to Fig. 2, referring to Fig. 4, Fig. 4 is according to the exemplary reality of the present invention
Apply example it is depicted with represents to be supplied to the charging current of battery, battery temperature and between the charging interval relation curve map.
When starting to charge to battery, the temperature of battery can be constantly sensed first in step S201, with rear
The battery temperature that can be learnt in continuous step according to sensing changes to adjust the size of charging current.In battery charging process it
Just, as the charging interval increases, the temperature of battery can increase.In Fig. 4, C2 is offer in expression charging process to battery
Charging current curve, T2 be represent charging process in battery temperature curve.As shown in figure 4, originally provide to battery
Charging current be about 2800 milliamperes, during about 0~1000 second charging interval, the temperature of battery increases to the charging interval
It is about Celsius 40 degree.
Therefore, it can judge whether the temperature of measured battery is more than or equal to warning temperature set in advance in step S202
Degree.In this citing, it is assumed that temperature alarm is redefined for 40 degree Celsius.When the temperature of measured battery is less than Celsius 40
When spending, just into step S203, charging current is not adjusted.Then it is multiple as shown in figure 4, in the charging interval about 0~1000
During second, charging current remains about 2800 milliamperes to be charged to battery.On the other hand, it is electrically charged when battery last
And the temperature of battery constantly rises so that when the temperature of measured battery reaches 40 degree Celsius, just into step S204, downgrades
Supplied to the charging current of battery.Then it is multiple as shown in figure 4, during battery charge time about 1000~4000 seconds, it is supplied to
The charging current of battery is adjusted with the change of battery temperature.Must be explanatorily that in step S204, charging current is according to silent
The battery temperature recognized and the relation of charging current are adjusted.In the present embodiment, the battery temperature of acquiescence and charging current
Relation can be described in the form of look-up table or formula.That is, when measured battery temperature reaches temperature alarm, this
After charging current control method 200 provided in embodiment will be adjusted according to default look-up table or default formula
Charging current, and current charging current is then adjusted to the charging current after foregoing obtained adjustment, with supplied to electricity
Pond.
Further illustrate, when measured battery temperature reaches temperature alarm, charging current will be looked into according to default
Table or default formula is looked for be downgraded or increased.For example, as shown in figure 4, in battery charge time about 4000~6000 seconds
Period, unceasingly raise, substituted into according to default look-up table or by battery temperature silent after reaching temperature alarm due to battery temperature
The formula recognized, the charging current downgraded will be obtained.Then, during battery charge time about 4000~6000 seconds, charging
Electric current can be downgraded with the rise of battery temperature.Then, because charging current is downgraded, in battery charge time about 6000
During~8000 seconds, battery temperature transfers to decline a little.Now, acquiescence is substituted into according to default look-up table or by battery temperature
Formula, then it can obtain the charging current increased.Then, during battery charge time about 6000~8000 seconds, charging current
It can be increased with the decline of battery temperature.However, charging current is increased and can cause battery temperature rise once again, then
During battery charge time about 8000~12000 seconds, the charging current downgraded can be obtained again.Therefore, when battery charges
Between during about 8000~12000 seconds, charging current is downgraded with the rise of battery temperature in degree.
Must be explanatorily that in a preferred embodiment, the battery temperature of acquiescence and the relation of charging current are by with lower section
Program describes：I (T)=A*I0*(TMAX-T)/(TMAX-TA).Must be explanatorily, in this formula, T be battery temperature, I
(T) it is a regulation coefficient to be provided under temperature T to the charging current of battery, A, I0When being less than temperature alarm for the temperature of battery
Unjustified charging current, TMAXFor the maximum temperature of battery in the charging process of battery, and TA is temperature alarm.Thus it is public
1/ (T in formulaMAX-TA) as can be seen that if battery temperature is higher by more (that is, the T of temperature alarmMAX-TAValue it is bigger), charging electricity
It is also bigger (that is, I (T) value is bigger) to flow the amplitude downgraded；On the other hand, if to be higher by temperature alarm less for battery temperature
(that is, TMAX-TAValue it is smaller), the amplitude that charging current is downgraded also just smaller (that is, I (T) value is smaller).In other words,
The amplitude that charging current is downgraded depends on the number that battery temperature is higher by temperature alarm.For example, as shown in figure 4, in electricity
During about 2000~6000 seconds pond charging intervals, battery temperature is about increased to 43.4 degree Celsius by 40 degree Celsius, and charging current is just
About 1000 milliamperes are cut to by 2800 milliamperes；In comparison, during battery charge time about 6000~8000 seconds, battery temperature
Degree is about reduced to 43 degree Celsius by 43.4 degree Celsius, and charging current is just about increased to 1100 milliamperes by 1000 milliamperes；And in electricity
During about 8000~12000 seconds pond charging intervals, battery temperature is about increased to 43.2 degree Celsius by 43 degree Celsius, and charging current is just
About 1050 milliamperes are cut to by 1100 milliamperes.
Next, when being electrically charged, cell voltage can rise due to battery last.When cell voltage reaches a default voltage
When, just into step S205.In step S205, constant voltage can be supplied and give battery to be charged.Battery is under constant voltage
When being charged, when the voltage difference between the current voltage and battery of battery are filled full voltage is gradually small, the charging electricity of battery
Stream will be gradually reduced.As seen from Figure 4, when charging between about more than 12000 seconds when, charging current is gradually reduced, that is, is represented
When being about 12000 seconds in the charging interval, cell voltage reaches foregoing default voltage, then starts to provide certain voltage to battery
Charged so that the charging current of battery is gradually reduced by about 1000 milliamperes.Simultaneously, due to the charging electricity of battery
Stream starts to be gradually reduced, and battery temperature also declines therewith.
Finally, when the charging current of battery drops to a predetermined current, just into step S206.In step S206,
Because the charging current of battery has dropped to predetermined current, battery charging complete can be judged and stop supplying charging current to electricity
Pond.Assuming that predetermined current foregoing in the present embodiment is 450 milliamperes, then it is about 14000 in the charging interval as seen from Figure 4
During the second, the charging current of battery drops to 450 milliamperes.Then, you can judge battery charging complete, and stop supply charging simultaneously
Electric current is to battery so that the charging current of battery directly drops to zero, and this is the charging electricity provided using the present embodiment
The whole charging process for the battery that method of flow control is completed.
Still must be explanatorily, although the battery temperature given tacit consent in this preferred embodiment and the relation of charging current by I (T)=
A*I0*(TMAX-T)/(TMAX-TA) describe, but in other embodiment, the battery temperature of acquiescence and the relation of charging current are also
It can be described by look-up table or be expressed as other default Regulation mechanisms (in short, such as：Portion's contrast drop charging current, Zhi Daowen
Degree declines, then portion's contrast rises charging current, if temperature rises, then downgrade charging current ... etc.).That is, the present invention is not
The describing mode or representation of the relation of battery temperature and charging current to acquiescence are any limitation as.
(embodiment of charging current control system)
Fig. 3 is referred to, Fig. 3 is the square of the charging current control system according to depicted in exemplifying embodiments
Figure.The charging current control system 3 that the present embodiment is provided is performing the charging current controlling party that previous embodiment is provided
Method 200, therefore understood please also refer to Fig. 2 with profit.
The charging current control system 3 that the present embodiment is provided to a battery to charge, and filling in this battery
In electric process, the charging current of so far battery is supplied according to the adjustment of the temperature of battery.As shown in figure 3, charging current control system 3
Including charhing unit 30, temperature sensor 34, voltage sensor 35 and microcontroller 32.In in actual use, charging current control
System 3 processed can be considered a battery pack B, and it connects upper external power supply CP to be charged to the battery 36 in battery pack B.Lift
For example, this external power supply CP can be civil power, but the present invention is not intended to limit in this.
Further illustrate, multiple as shown in figure 3, charhing unit 30 is connected to battery 36, it is single that microcontroller 32 is connected to charging
Member 30.Temperature sensor 34 and voltage sensor 35 are all connected between microcontroller 32 and battery 36.Charhing unit 30 connects
Upper external power supply CP comes for inductive charging electric current to battery 36.Temperature sensor 34 constantly senses the temperature of battery 36.It is micro-
Controller 32 receives the temperature of the battery 36 measured by temperature sensor 34, and judges the battery 36 measured by temperature sensor 34
Temperature whether be more than or equal to a temperature alarm.
If microcontroller 32 judges that the temperature of the battery 36 measured by temperature sensor 34 is less than temperature alarm and (illustrates and
Say, be 40 degree Celsius shown in Fig. 4), then microcontroller 32 does not adjust the charging current that charhing unit 30 is supplied to battery 36.So
And if microcontroller 32 judges the temperature of 36 batteries measured by temperature sensor 34 and is more than or equal to temperature alarm, according to silent
Charging current of look-up table or formula control charhing unit 30 adjustment recognized supplied to battery 36.
In detail, when microcontroller 32 judges that the temperature of 36 batteries measured by temperature sensor 34 is more than or equal to warning
Temperature, and then control the adjustment of charhing unit 30 to be supplied to supplied to the charging current of battery 36 according to the look-up table or formula of acquiescence
During the charging current of battery, charging current is adjusted according to the temperature of battery 36 and the relation of charging current of acquiescence.Yu Ben
In embodiment, the temperature of the battery 36 of acquiescence and the relation of charging current can be described in the form of look-up table or formula.Also
To say, microcontroller 32 can be adjusted by default look-up table or default formula after charging current, and then control
Current charging current is adjusted to the charging current after foregoing obtained adjustment by charhing unit 30, with supplied to battery 36.
Carefully say, when microcontroller 32 judges that the temperature of the battery 36 measured by temperature sensor 34 reaches temperature alarm
When (being for example, 40 degree Celsius shown in Fig. 4), microcontroller 32 writes from memory according to default look-up table or substitute into battery temperature
The formula recognized, the charging current that can obtain being downgraded is (for example, in Fig. 4, in battery charge time about 2000~6000
During second, charging current is just about cut to 1000 milliamperes by 2800 milliamperes), and control charhing unit 30 to downgrade supplied to battery
36 charging current.However, as the charging current supplied to battery 36 is downgraded, battery temperature also just with decline a little,
Then microcontroller 32 substitutes into the temperature of the battery 36 declined a little measured by temperature sensor 34 formula of acquiescence, then may be used
The charging current for obtaining being increased (for example, in Fig. 4, during battery charge time about 6000~8000 seconds, charges electric
Stream is just about cut to 1100 milliamperes by 1000 milliamperes).Once again, as the charging current supplied to battery 36 is increased, electricity
Pond temperature again can again with rising, then microcontroller 32 is by the temperature of the battery 36 risen once again measured by temperature sensor 34
Degree substitutes into the formula of acquiescence, just can obtain the charging current downgraded again (for example, in Fig. 4, in battery charge time about
During 8000~12000 seconds, charging current is just about cut to 1050 milliamperes by 1100 milliamperes).
Because in the charging process of battery, the voltage of battery can be gradually increasing with the charging interval.Therefore, the present embodiment
The charging current control system 3 provided except be provided with temperature sensor 34 come constantly sense battery 36 in addition to temperature, separately
Voltage sensor 35 is provided with constantly to sense the voltage of battery 36, and the voltage of measured battery 36 is sent to micro-control
Device 32 processed.
In the present embodiment, when cell voltage is filled up to a default voltage, microcontroller 32 can control charhing unit 30
Supply constant voltage gives battery to be charged.Must be explanatorily that this default voltage is to obtained by the test in advance of battery warp in this
, different types of battery has different types of battery core, therefore for different types of battery, test obtains the acquiescence electricity on ground
Press difference.For example, the battery tested in the present embodiment is the model ICR18650- that South Korea Samsung SDI is produced
28A lithium battery, for such a battery, the percentage that default voltage is filled full voltage with battery is 82%, but this hair
It is bright to be not intended to limit in this.In addition, continue to charge to it with constant voltage after cell voltage is filled and reaches this default voltage
The reason for be, when battery is by constant-voltage charge, the voltage difference between battery current voltage and battery are filled full voltage is gradually
Small, the charging current of battery will be gradually reduced, and can judge whether battery fills thus according to the charging current being gradually reduced
Electricity is completed.Therefore, in the present embodiment, when the charging current supplied to battery 36 drops to a predetermined current (for example,
For 450 milliamperes shown in Fig. 4), microcontroller 32 judges the charging complete of battery 36 and controls charhing unit 30 to stop supply charging
For electric current to battery 36, this is the whole mistake that the charging current control system 3 that the present embodiment is provided is charged to battery 36
Journey.
(possibility effect of embodiment)
In summary, the process that charging current control method provided by the present invention can charge with system in battery is filled not
Charging current is intermittently supplied with to battery.That is, charging current control method provided by the present invention being capable of basis with system
The temperature of battery adjusts the size supplied to the charging current of battery, without being temporarily ceased because battery temperature is too high to electricity
The charging in pond.Consequently, it is possible to just can significantly save the charging interval, and then improve charge efficiency.
Can more clearly it be learnt by Fig. 1 and Fig. 4, the process to be charged with traditional charging current control technology to battery
In, when battery temperature is too high, the charging to battery need to be temporarily ceased, therefore the time reduced to wait battery temperature causes
The charging process of whole battery is elongated.As shown in figure 1, traditional charging current control technology needs about 18000 seconds (experiment values
For 17771 seconds) could (battery tested herein be the model that South Korea Samsung SDI is produced by battery charging complete
ICR18650-28A lithium battery).In comparison, for charging current control method provided by the present invention and system,
Although during battery charges, charging current can be downgraded as battery temperature rises, can be in whole battery
Charging current is provided during charging incessantly to battery (that is, without the charging temporarily ceased to battery).Therefore, as schemed
Shown in 4, charging current control method provided by the present invention only needs about 14000 seconds (experiment value is 13506 seconds) just can with system
By foregoing battery charging complete.That is, compared with traditional charging current control technology, charging electricity provided by the present invention
Method of flow control shortens for 34% charging interval with system.
Embodiments of the invention are the foregoing is only, it simultaneously is not used to limit to protection scope of the present invention.
Claims (6)
- A kind of 1. charging current control method, to the battery that charges, and in the charging process of the battery, according to the electricity A charging current of the temperature adjustment in pond supplied to the battery, it is characterised in that the charging current control method includes：Constantly sense the temperature of the battery；Judge whether the temperature of the measured battery is more than or equal to a temperature alarm；If the temperature of the measured battery is less than the temperature alarm, the charging supplied to the battery is not adjusted Electric current；AndIf the temperature of the measured battery is more than or equal to the temperature alarm, according to the look-up table or a formula of acquiescence The charging current of the adjustment supplied to the battery.
- 2. charging current control method as claimed in claim 1, it is characterised in that the formula is I (T)=A*I0*(TMAX- T)/(TMAX-TA), wherein T is the temperature of the battery, and I (T) is to be provided under temperature T to the charging electricity of the battery Stream, A are a regulation coefficient, I0Unjustified charging current when being less than the temperature alarm for the temperature of the battery, TMAXOne maximum temperature of battery described in the charging process for the battery, and TAFor the temperature alarm.
- 3. charging current control method as claimed in claim 1, it is characterised in that the charging current control method is also wrapped Include：When the cell voltage reaches a default voltage, one constant voltage of supply gives the battery to be charged so that provides The charging current to the battery is gradually reduced；AndWhen dropping to a predetermined current to the charging current of the battery until providing, the battery charging complete is judged simultaneously Stop supplying the charging current to the battery.
- A kind of 4. charging current control system, to the battery that charges, and in the charging process of the battery, according to the electricity A charging current of the temperature adjustment in pond supplied to the battery, it is characterised in that the charging current control system includes：One charhing unit, the battery is connected to, to supply the charging current to the battery；One temperature sensor, the battery is connected to, constantly to sense the temperature of the battery；AndOne microcontroller, it is connected between the charhing unit and the temperature sensor, to receive the temperature sensor The temperature of the measured battery, and judge whether the temperature of the battery measured by the temperature sensor is more than or equal to One temperature alarm；Wherein, if the microcontroller judges that the temperature of the battery measured by the temperature sensor is less than the warning temperature Spend, then the microcontroller does not adjust the charging current that the charhing unit is supplied to the battery, and if the micro-control Device processed judges that the temperature of the battery measured by the temperature sensor is more than or equal to the temperature alarm, then according to acquiescence One look-up table or a formula control the charhing unit adjustment supplied to the charging current of the battery.
- 5. charging current control system as claimed in claim 4, it is characterised in that the formula is I (T)=A*I0*(TMAX- T)/(TMAX-TA), wherein T is the temperature of the battery, and I (T) is to be provided under temperature T to the charging electricity of the battery Stream, A are a regulation coefficient, I0Unjustified charging current when being less than the temperature alarm for the temperature of the battery, TMAXOne maximum temperature of battery described in the charging process for the battery, and TAFor the temperature alarm.
- 6. charging current control system as claimed in claim 4, it is characterised in that the charging current control system also wraps Include：One voltage sensor, it is connected between the battery and the microcontroller, constantly to sense the electricity of the battery Pressure, and the voltage of the measured battery is sent to the microcontroller；Wherein when the microcontroller judges that the voltage of the battery measured by the voltage sensor reaches a default voltage When, charhing unit described in the microprocessor control supplies a constant voltage and gives the battery to be charged so that provides to institute The charging current for stating battery is gradually reduced, until the charging current provided to the battery drops to a predetermined current When, the microcontroller judges the battery charging complete and controls the charhing unit to stop supplying the charging current to institute State battery.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610799534.4A CN107785946B (en) | 2016-08-30 | 2016-08-30 | Charging current control method and system thereof |
| TW105129629A TWI634719B (en) | 2016-08-30 | 2016-09-12 | Charging current control method and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610799534.4A CN107785946B (en) | 2016-08-30 | 2016-08-30 | Charging current control method and system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107785946A true CN107785946A (en) | 2018-03-09 |
| CN107785946B CN107785946B (en) | 2020-01-31 |
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| CN108688504A (en) * | 2018-06-26 | 2018-10-23 | 北京新能源汽车股份有限公司 | A kind of battery charging control method, device, automobile and computing device |
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| TWI635301B (en) * | 2018-04-27 | 2018-09-11 | 宏碁股份有限公司 | Method of accurately displaying battery percentage using multiple judging conditions and related battery management unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106283A (en) * | 2007-07-25 | 2008-01-16 | 中兴通讯股份有限公司 | Method for charging battery of portable handheld device |
| CN103812199A (en) * | 2014-03-05 | 2014-05-21 | 联想(北京)有限公司 | Charging control method and charging control equipment |
| CN104052138A (en) * | 2014-05-28 | 2014-09-17 | 惠州Tcl移动通信有限公司 | Intelligent mobile terminal and temperature control method during charging of intelligent mobile terminal |
| CN104734214A (en) * | 2013-12-18 | 2015-06-24 | 比亚迪股份有限公司 | Portable device and charging and discharging control method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW530429B (en) * | 2001-12-24 | 2003-05-01 | Avid Electronics Corp | Intelligent secondary battery management method and device |
| CN104734295B (en) * | 2015-03-30 | 2017-01-18 | 航天东方红卫星有限公司 | Control method for constant-current constant-voltage charging of lithium storage battery |
-
2016
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106283A (en) * | 2007-07-25 | 2008-01-16 | 中兴通讯股份有限公司 | Method for charging battery of portable handheld device |
| CN104734214A (en) * | 2013-12-18 | 2015-06-24 | 比亚迪股份有限公司 | Portable device and charging and discharging control method thereof |
| CN103812199A (en) * | 2014-03-05 | 2014-05-21 | 联想(北京)有限公司 | Charging control method and charging control equipment |
| CN104052138A (en) * | 2014-05-28 | 2014-09-17 | 惠州Tcl移动通信有限公司 | Intelligent mobile terminal and temperature control method during charging of intelligent mobile terminal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108688504A (en) * | 2018-06-26 | 2018-10-23 | 北京新能源汽车股份有限公司 | A kind of battery charging control method, device, automobile and computing device |
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| TWI634719B (en) | 2018-09-01 |
| CN107785946B (en) | 2020-01-31 |
| TW201807919A (en) | 2018-03-01 |
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