CN106785142B - A kind of battery of electric vehicle fast charge method and device - Google Patents
A kind of battery of electric vehicle fast charge method and device Download PDFInfo
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- CN106785142B CN106785142B CN201611248858.5A CN201611248858A CN106785142B CN 106785142 B CN106785142 B CN 106785142B CN 201611248858 A CN201611248858 A CN 201611248858A CN 106785142 B CN106785142 B CN 106785142B
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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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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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
Abstract
The present invention provides a kind of battery of electric vehicle fast charge method, this method comprises: monitoring charging input；Obtain the residual power percentage of battery to be charged；Percentage information generates a corresponding fast charge circuit according to the residual electric quantity；Fast charge is executed to the battery using the fast charge circuit.Using the battery of electric vehicle fast charge method, different fast charge schemes can be used to take into account charge efficiency and protection battery to battery dump energy difference.
Description
Technical field
The present invention relates to battery charging field more particularly to a kind of battery of electric vehicle fast charge method and devices.
Background technique
Electric vehicle is environmentally friendly, energy saving, light with it, saves money, saves trouble, and gradually replaces motorcycle and is known as that people are a kind of important to go out
Row tool.
The battery that electric vehicle uses at present is mostly lead-acid battery.Lead-acid battery has had more than 100 years history, having property
Can be reliable, mature production technology.
Current electric vehicle uses sealing-type lead-acid battery mostly.When battery charging, the lead plaster of positive plate is converted to dioxy
Change lead, the lead plaster on negative plate is converted to spongy lead, and when the cell is discharged, positive plate active material is converted to lead sulfate, and negative plate is living
Property substance be also translated into lead sulfate, therefore the cycle charge-discharge of lead-acid battery is the electrochemistry that electric energy and chemical energy are constantly converted
Change procedure, the final storage and release for realizing energy.
The lead-acid battery that current electric vehicle uses usual discharge time was at 3-4 hours, and the full charge time is then up to 10-
12 hours.Therefore it will limit its travel requirement under emergency conditions.In the case where electric vehicle not enough power supply, it cannot achieve fast
The demand of speed trip.
The electric vehicle fast charging device occurred on the market at present, is all with constant this unique fast charge scheme pair of high current
All batteries carry out fast charge, and when battery capacity is very low, user wishes to charge with most fast efficiency, opposite in battery capacity
When sufficient, user wishes to protect battery to greatest extent.Therefore single fast charge mode cannot be considered in terms of charge efficiency and protection battery.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of battery of electric vehicle fast charge method and devices, can be right
Battery dump energy is different and uses different fast charge schemes to take into account charge efficiency and protection battery.
Specifically, the invention proposes a kind of battery of electric vehicle fast charge methods, this method comprises:
Monitoring charging input；
Obtain the residual power percentage of battery to be charged；
Percentage generates a corresponding fast charge circuit according to the residual electric quantity；
Fast charge is executed to the battery using the fast charge circuit.
Further, when the residual power percentage is lower than first threshold, using the pulse charging quickly with negative pulse
Road；When the residual power percentage is higher than second threshold, successively decreased constant current fast charge circuit step by step using the multistage；When described surplus
When remaining electricity percentage is between first threshold and second threshold, using high current constant current fast charge circuit.
Further, the first threshold is 20%, and the second threshold is 50%.
Further, it is 10CA that the pulse fast charge circuit with negative pulse, which is charging current, and charging pulse width is
45ms, discharge pulse width are 2ms, and interval width is 5ms before discharging, and interval width is 8ms after electric discharge；The multistage is step by step
The constant current fast charge circuit that successively decreases is 4CA to start to charge electric current, reduces 0.5CA at interval of 5 minutes charging currents, the high current is permanent
It is 6CA that stream fast charge circuit, which is charging current,.
Further, start timing while executing fast charge to the battery, when timing reaches the preset charging time,
Terminate charging.
The invention also provides a kind of battery of electric vehicle fast charging devices, comprising:
Monitoring modular, for monitoring charging input；
Module is obtained, for obtaining the residual power percentage of battery to be charged；
Decision-making module generates a corresponding fast charge circuit for percentage information according to the residual electric quantity；
Charging module, for executing fast charge to the battery using the fast charge circuit.
Further, the decision of the decision-making module includes: and adopts when the residual power percentage is lower than first threshold
With the pulse fast charge circuit with negative pulse；When the residual power percentage is higher than second threshold, passed step by step using the multistage
Subtract constant current fast charge circuit；When the residual power percentage is between first threshold and second threshold, using high current constant current
Fast charge circuit.
Further, the first threshold is 20%, and the second threshold is 50%.
Further, it is 10CA that the pulse fast charge circuit with negative pulse, which is charging current, and charging pulse width is
45ms, discharge pulse width are 2ms, and interval width is 5ms before discharging, and interval width is 8ms after electric discharge；The multistage is step by step
The constant current fast charge circuit that successively decreases is 4CA to start to charge electric current, reduces 0.5CA at interval of 5 minutes charging currents, the high current is permanent
It is 6CA that stream fast charge circuit, which is charging current,.
Further, which further includes timing control module, fast for executing to the battery
Start timing while filling, when reaching the preset charging time to timing, terminates charging.
Compared with prior art, the invention proposes a kind of battery of electric vehicle fast charge methods, this method comprises: monitoring charging
Input；Obtain the residual power percentage of battery to be charged；Percentage generates a corresponding charging quickly according to the residual electric quantity
Road；Fast charge is executed to the battery using the fast charge circuit.The present invention also provides a kind of battery of electric vehicle fast charging devices.This hair
It is bright that charge efficiency and protection battery can be taken into account using different fast charge schemes to battery dump energy difference.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of battery of electric vehicle fast charge method flow schematic diagram that the embodiment of the present invention proposes.
Fig. 2 is a kind of battery of electric vehicle fast charge method flow schematic diagram that the specific embodiment of the invention proposes.
Fig. 3 is a kind of battery of electric vehicle fast charging device structural schematic diagram that one embodiment of the invention proposes.
Fig. 4 is a kind of battery of electric vehicle fast charging device structural schematic diagram that another embodiment of the present invention proposes.
Main element symbol description:
20- battery of electric vehicle fast charging device；201- monitoring modular；202- obtains module；203- decision-making module；204- charging
Module；205- timing control module.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually
The component for the embodiment of the present invention for describing and showing in attached drawing here can be arranged and be designed with a variety of different configurations.Cause
This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Embodiment 1
As shown in Figure 1, one embodiment of the invention proposes a kind of battery of electric vehicle fast charge method, comprising:
S10, monitoring charging input.
Specifically, whether monitoring charging input is exactly to monitor the charging interface of electric vehicle to be connected on charging unit.
How to judge whether the charging interface of electric vehicle is connected on charging unit, we can by monitoring resistor or
Voltage value judges.
Specifically, can illustrate to have electronic if there is voltage difference with the presence or absence of voltage difference by real-time monitoring external circuit
Vehicle is connected on charging unit.
Because electric vehicle is before charging, as long as rechargeable battery does not damage completely, the positive and negative two-stage of battery can maintain one always
Fixed voltage difference.
After the charging interface of electric vehicle is connected to charging unit, charging unit will not charge to electric vehicle immediately.This is
It is different from current charging unit.
S11 obtains the residual power percentage of battery to be charged.
The residual power percentage of battery to be charged is obtained, to take different fast charge sides according to battery dump energy
Case.
The residual power percentage for obtaining battery to be charged can be in response to the residual power percentage information of user's input
It obtains.
After monitoring charging input, charging unit can prompt user to input battery of electric vehicle residual power percentage letter
Breath, user can input the residual power percentage according to the remaining capacity information shown on electric vehicle battery capacity indication panel
Information.
User can also input the brand and type information of electric vehicle to be charged, charging unit according to the brand of electric vehicle and
Type information obtains the capacity information and voltage rating information of battery, and same charging unit may be implemented to not according to this information
The battery of same specification carries out fast charge.
The residual power percentage for obtaining battery to be charged can also be that charging electric vehicle and charging unit establish communication link
It connects, the information of battery is sent to charging unit by charging electric vehicle.The battery information includes residual power percentage, the appearance of battery
Measure the information such as information and voltage rating.
Establishing communication connection can be using wired or wirelessly.
It can be transformed on the basis of existing charging cable by the way of wired, increase communication line.Make charging cable one
Charging is responsible on route road, and route is responsible for communication all the way.
Using wirelessly can be bluetooth, the connection types such as WiFi.
S12, percentage generates a corresponding fast charge circuit according to the residual electric quantity.
After getting the residual power percentage of battery, percentage generates a corresponding charging quickly according to the residual electric quantity
Road.
At present common fast charge method mainly include the following types:
High current constant current method, multistage constant current method, high current current limliting constant-voltage method, the without hindrance constant-voltage method of current limliting and arteries and veins
Rush charging method.
When the remaining capacity of battery is lower, to carry out fast charge operation be exactly that expected efficiency is high to user, in shortest time time
The interior more electric energy of storage, it is therefore desirable to use large current charge.When being charged using high current, due to the speed of chemical reaction
Spend it is slow compared with electronic movement velocity, battery pole plates surface generate charge accumulated and form barrier potential barrier layer, prevent electrochemical reaction from
Go deep into only carrying out on surface inside pole plate again, the active material of pole plate cannot all participate in reaction, generate polarization phenomena.Charging
Electric current is bigger, and polarization phenomena are more serious, so that additional electric energy can only be in electrolysis water and internal resistance fever.Substrate can be made to send out in this way
Change shape, damages battery.It can charge that gap insertion one is of short duration reversely to go to pole in forward pulse current to solve polarization
Change pulse, to remove the barrier potential barrier layer of pole plate, to realize that high current is quickly filled in the case where protecting battery to greatest extent
Electricity.Therefore, when the residual power percentage of battery is relatively low, using the pulse fast charge circuit with negative pulse.
When the remaining capacity of battery is higher, user carries out fast charge operation and is not only to complete quick charge, it is also desirable to can be maximum
The protection battery of limit, can control charging current and successively decreases step by step.Therefore, it when the residual power percentage of battery is higher, adopts
Successively decreased constant current fast charge circuit step by step with the multistage.
When the remaining capacity of battery is medium, can control charging current is always a fixed value.Therefore, when the residue of battery
When electricity percentage is medium, using high current constant current fast charge circuit.
Specifically, according to the residual power percentage information of battery, the remaining capacity of battery is divided into following three grades.
When residual power percentage is lower than first threshold, the first threshold is 20%, using the pulse with negative pulse
Fast charge circuit.
When residual power percentage is higher than second threshold, the second threshold is 50%, is successively decreased step by step using the multistage
Constant current fast charge circuit.
It is fast using high current constant current when residual power percentage is between the first threshold and the second threshold
Charging circuit.
More specifically, it is 10CA that the pulse fast charge circuit with negative pulse, which is charging current, charging pulse width is
45ms, discharge pulse width are 2ms, and interval width is 5ms before discharging, and interval width is 8ms after electric discharge；The multistage is step by step
The constant current fast charge circuit that successively decreases is 4CA to start to charge electric current, reduces 0.5CA at interval of 5 minutes charging currents, the high current is permanent
It is 6CA that stream fast charge circuit, which is charging current,.
S13 executes fast charge to the battery using the fast charge circuit.
Fast charge is carried out using battery of the fast charge circuit generated to charging vehicle.When battery be full of or the charging time reach
Terminate to charge when preset time.
Embodiment 2
As shown in Fig. 2, another embodiment of the present invention proposes a kind of battery of electric vehicle fast charge method, comprising:
S20, monitoring charging input.
Wherein, step S20 is identical with step S10 content.
S21 obtains the residual power percentage of battery to be charged.
Wherein, step S21 is identical with step S11 content.
S22, percentage generates a corresponding fast charge circuit according to the residual electric quantity.
Wherein, step S22 is identical with step S12 content.
S23 executes fast charge to the battery using the fast charge circuit and starts timing.
While starting to execute fast charge to battery of electric vehicle when starting chargometer.
S24 terminates charging when timing reaches the preset charging time.
After reaching preset time when the timer, control charging terminates fast charge.The preset time can be 10
Minute or 15 minutes.
Embodiment 3
As shown in figure 3, one embodiment of the invention proposes a kind of battery of electric vehicle fast charging device 20, comprising:
Monitoring modular 201, for monitoring charging input.
Module 202 is obtained, for obtaining the residual power percentage of battery to be charged.
Decision-making module 203 generates a corresponding fast charge circuit for percentage information according to the residual electric quantity.
Further, the decision of the decision-making module 203 includes: when the residual power percentage is lower than first threshold
When, using the pulse fast charge circuit with negative pulse；When the residual power percentage be higher than second threshold when, using the multistage by
Grade is successively decreased constant current fast charge circuit；When the residual power percentage is between first threshold and second threshold, using high current
Constant current fast charge circuit.
Specifically, the first threshold is 20%, and the second threshold is 50%.The pulse charging quickly with negative pulse
Road is that charging current is 10CA, and charging pulse width is 45ms, and discharge pulse width is 2ms, and interval width is 5ms before discharging,
Interval width is 8ms after electric discharge；It is 4CA that the multistage, which successively decreases constant current fast charge circuit step by step to start to charge electric current, at interval of 5
Minute charging current reduces 0.5CA, and it is 6CA that the high current constant current fast charge circuit, which is charging current,.
Charging module 204, for executing fast charge to the battery using the fast charge circuit.
Embodiment 4
As shown in figure 4, another embodiment of the present invention proposes a kind of battery of electric vehicle fast charging device 20, comprising:
Monitoring modular 201, for monitoring charging input.
Module 202 is obtained, for obtaining the residual power percentage of battery to be charged.
Decision-making module 203 generates a corresponding fast charge circuit for percentage information according to the residual electric quantity.
Further, the decision of the decision-making module 203 includes: when the residual power percentage is lower than first threshold
When, using the pulse fast charge circuit with negative pulse；When the residual power percentage be higher than second threshold when, using the multistage by
Grade is successively decreased constant current fast charge circuit；When the residual power percentage is between first threshold and second threshold, using high current
Constant current fast charge circuit.
Specifically, the first threshold is 20%, and the second threshold is 50%.The pulse charging quickly with negative pulse
Road is that charging current is 10CA, and charging pulse width is 45ms, and discharge pulse width is 2ms, and interval width is 5ms before discharging,
Interval width is 8ms after electric discharge；It is 4CA that the multistage, which successively decreases constant current fast charge circuit step by step to start to charge electric current, at interval of 5
Minute charging current reduces 0.5CA, and it is 6CA that the high current constant current fast charge circuit, which is charging current,.
Charging module 204, for executing fast charge to the battery using the fast charge circuit.
Timing control module 205 starts timing while for executing fast charge to the battery, reaches to timing preset
When the charging time, terminate charging.
A kind of electric vehicle fast charge method and device provided in an embodiment of the present invention, this method comprises: monitoring charging input；It obtains
Take the residual power percentage of battery to be charged；Percentage generates a corresponding fast charge circuit according to the residual electric quantity；Using
The fast charge circuit executes fast charge to the battery.The present invention is different to battery dump energy and uses different fast charge schemes can
To take into account charge efficiency and protection battery.
The technical effect and preceding method embodiment phase of system provided by the embodiment of the present invention, realization principle and generation
Together, to briefly describe, system embodiment part does not refer to place, can refer to corresponding contents in preceding method embodiment.
In all examples being illustrated and described herein, any occurrence should be construed as merely illustratively, without
It is to limit, therefore, other examples of exemplary embodiment can have different values.It should also be noted that similar label and word
Mother indicates similar terms in following attached drawing, therefore, once it is defined in a certain Xiang Yi attached drawing, then in subsequent attached drawing
It does not need that it is further defined and explained.
In several embodiments provided herein, it should be understood that disclosed device can be by others side
Formula is realized.The apparatus embodiments described above are merely exemplary, for example, the division of the unit, only one kind are patrolled
Function division is collected, there may be another division manner in actual implementation, in another example, multiple units or components can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some communication interfaces, device or unit
It connects, can be electrical property, mechanical or other forms.
The unit for separate part description may or may not be physically separated, and show for unit
Component may or may not be physical unit, it can and it is in one place, or may be distributed over multiple networks
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
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.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. a kind of battery of electric vehicle fast charge method, it is characterised in that: this method comprises:
Monitoring charging input；
Obtain the residual power percentage of battery to be charged；
Percentage generates a corresponding fast charge circuit according to the residual electric quantity；It is described that " percentage is raw according to the residual electric quantity
The fast charge circuit answered in a pair " includes: when the residual power percentage is lower than first threshold, using the pulse with negative pulse
Fast charge circuit；When the residual power percentage is higher than second threshold, successively decreased constant current fast charge circuit step by step using the multistage；When
When the residual power percentage is between first threshold and second threshold, using high current constant current fast charge circuit；Described first
Threshold value is 20%, and the second threshold is 50%；
Fast charge is executed to the battery using the fast charge circuit.
2. a kind of battery of electric vehicle fast charge method as described in claim 1, it is characterised in that: the pulse with negative pulse is fast
Charging circuit is that charging current is 10CA, and charging pulse width is 45ms, and discharge pulse width is 2ms, and interval width is before discharging
5ms, interval width is 8ms after electric discharge；It is 4CA that the multistage, which successively decreases constant current fast charge circuit step by step to start to charge electric current, often
It is spaced 5 minutes charging currents and reduces 0.5CA, it is 6CA that the high current constant current fast charge circuit, which is charging current,.
3. a kind of battery of electric vehicle fast charge method as described in claim 1, which is characterized in that described " to use the charging quickly
Road executes fast charge to the battery " it include: to start timing while executing fast charge to the battery, when timing reaches preset fill
When the electric time, terminate charging.
4. a kind of battery of electric vehicle fast charging device characterized by comprising
Monitoring modular, for monitoring charging input；
Module is obtained, for obtaining the residual power percentage of battery to be charged；
Decision-making module generates a corresponding fast charge circuit for percentage information according to the residual electric quantity；The decision-making module
Decision include: when the residual power percentage is lower than first threshold, using the pulse fast charge circuit with negative pulse；Work as institute
When stating residual power percentage higher than second threshold, successively decreased constant current fast charge circuit step by step using the multistage；When the remaining capacity
When percentage is between first threshold and second threshold, using high current constant current fast charge circuit；The first threshold is 20%, institute
Stating second threshold is 50%；
Charging module, for executing fast charge to the battery using the fast charge circuit.
5. a kind of battery of electric vehicle fast charging device as claimed in claim 4, which is characterized in that the pulse with negative pulse is fast
Charging circuit is that charging current is 10CA, and charging pulse width is 45ms, and discharge pulse width is 2ms, and interval width is before discharging
5ms, interval width is 8ms after electric discharge；It is 4CA that the multistage, which successively decreases constant current fast charge circuit step by step to start to charge electric current, often
It is spaced 5 minutes charging currents and reduces 0.5CA, it is 6CA that the high current constant current fast charge circuit, which is charging current,.
6. a kind of battery of electric vehicle fast charging device as claimed in claim 4, which is characterized in that it further include timing control module,
Start timing while for executing fast charge to the battery, when reaching the preset charging time to timing, terminates charging.
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| CN112152271B (en) * | 2019-06-27 | 2023-05-05 | Oppo广东移动通信有限公司 | Quick charging method, charging device, electronic equipment and charging system |
| CN112803513A (en) * | 2020-12-18 | 2021-05-14 | 武汉格罗夫氢能汽车有限公司 | 12V storage battery quick charging system of fuel cell hydrogen energy automobile |
| CN113581008B (en) * | 2021-09-28 | 2021-12-28 | 深圳万甲荣实业有限公司 | Stage type power distribution power supply system for new energy automobile |
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