CN109193050A - Battery parlor electricity active equalization method and device - Google Patents
Battery parlor electricity active equalization method and device Download PDFInfo
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- CN109193050A CN109193050A CN201811167459.5A CN201811167459A CN109193050A CN 109193050 A CN109193050 A CN 109193050A CN 201811167459 A CN201811167459 A CN 201811167459A CN 109193050 A CN109193050 A CN 109193050A
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- 238000004891 communication Methods 0.000 claims description 17
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
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- 238000004590 computer program Methods 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 2
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Classifications
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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
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- 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
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of battery parlor electricity active equalization method and devices.Battery pack includes a main battery packet and at least one secondary cell packet.Its method include: respectively in determining main battery packet in the remaining capacity and at least one secondary cell packet of each single battery each single battery remaining capacity；Calculate separately to obtain the remaining capacity difference of each single battery remaining capacity and each single battery remaining capacity at least one corresponding secondary cell packet in main battery packet；It judges whether there is and is greater than or equal to the default remaining capacity difference across the balanced unlatching threshold value of packet；If it exists, across the packet equalization channel of single battery and single battery at least one secondary cell packet in the corresponding main battery packet of remaining capacity difference is opened, so that corresponding single battery shifts into main battery packet by the remaining capacity of single battery at least one secondary cell packet.It using the present invention, can be charged online to main battery packet, increase time, the energy etc. that main battery packet is electric car power supply.
Description
Technical field
The present invention relates to automobile technical fields, and in particular to a kind of battery parlor electricity active equalization method and device.
Background technique
With becoming increasingly conspicuous for energy crisis and environmental problem, electric car because its low noise, it is pollution-free outstanding advantages of,
An important component and the developing direction being increasingly becoming in Global Auto industrial circle.Electric car more and more enters into
People's daily life becomes the important vehicles.
But due to the problems such as course continuation mileage of electric car is shorter, the charging time is longer, make its can not accomplish completely with biography
System fuel vehicle is compared.Therefore, the course continuation mileage for promoting electric car becomes the problem that electric car needs to solve.Promote electronic vapour
The course continuation mileage of vehicle needs to ensure the electricity in batteries of electric automobile packet, and the prior art is provided only in electric car one
The technology of electric quantity balancing is carried out in a battery pack packet, which can solve the consistency of single battery inside a battery pack,
But the course continuation mileage of electric car can not be promoted.
Summary of the invention
In view of the above problems, it proposes on the present invention overcomes the above problem or at least be partially solved in order to provide one kind
State the battery parlor electricity active equalization method and device of problem.
According to an aspect of the invention, there is provided a kind of battery parlor electricity active equalization method, battery pack includes one
A main battery packet and at least one secondary cell packet, method include:
Remaining capacity obtaining step determines the remaining capacity of each single battery and at least one secondary electricity in main battery packet respectively
The remaining capacity of each single battery in the packet of pond；
Difference calculates step, calculate separately to obtain in main battery packet each single battery remaining capacity with it is corresponding at least one
The remaining capacity difference of each single battery remaining capacity in secondary cell packet；
Step is opened in judgement, and it is poor across the balanced remaining capacity for opening threshold value of packet more than or equal to default to judge whether there is
Value；
Step is opened, if judgement unlatching step judgement is default across the residue electricity for wrapping balanced unlatching threshold value in the presence of being greater than or equal to
Difference is measured, single battery and single battery at least one secondary cell packet in the corresponding main battery packet of remaining capacity difference are opened
Across packet equalization channel, for by the remaining capacity of single battery at least one secondary cell packet into main battery packet corresponding monomer
Battery is shifted.
According to another aspect of the present invention, a kind of battery parlor electricity active equalization device is provided, battery pack includes
One main battery packet and at least one secondary cell packet, device include:
Remaining capacity obtains module, suitable for the remaining capacity of each single battery in determining main battery packet respectively and at least one
The remaining capacity of each single battery in secondary cell packet；
Difference calculating module, suitable for calculate separately to obtain in main battery packet each single battery remaining capacity with it is corresponding at least
The remaining capacity difference of each single battery remaining capacity in one secondary cell packet；
Judge opening module, is greater than or equal to the default remaining capacity across the balanced unlatching threshold value of packet suitable for judging whether there is
Difference；
Opening module, if suitable for judging that opening module judgement is default across the surplus of the balanced unlatching threshold value of packet in the presence of being greater than or equal to
Remaining electricity difference opens single battery and monomer electricity at least one secondary cell packet in the corresponding main battery packet of remaining capacity difference
Across the packet equalization channel in pond, for the remaining capacity of single battery at least one secondary cell packet is corresponding into main battery packet
Single battery is shifted.
According to another aspect of the invention, provide a kind of electronic equipment, comprising: processor, memory, communication interface and
Communication bus, the processor, the memory and the communication interface complete mutual communication by the communication bus；
For the memory for storing an at least executable instruction, it is above-mentioned that the executable instruction executes the processor
The corresponding operation of battery parlor electricity active equalization method.
In accordance with a further aspect of the present invention, provide a kind of computer storage medium, be stored in the storage medium to
A few executable instruction, the executable instruction execute processor as electricity active equalization method between above-mentioned battery pack is corresponding
Operation.
Battery parlor electricity active equalization method and device according to the present invention determine each monomer electricity in main battery packet respectively
The remaining capacity of each single battery in the remaining capacity in pond and at least one secondary cell packet；It calculates separately to obtain each in main battery packet
The remaining capacity difference of single battery remaining capacity and each single battery remaining capacity at least one corresponding secondary cell packet；Sentence
It is disconnected default across the balanced remaining capacity difference for opening threshold value of packet with the presence or absence of being greater than or equal to；If it exists, it is poor to open remaining capacity
It is worth across the packet equalization channel of single battery and single battery at least one secondary cell packet in corresponding main battery packet, near
The remaining capacity of single battery corresponding single battery into main battery packet is shifted in a few secondary cell packet.Utilize this hair
It is bright, it can be charged online to main battery packet, to ensure the electricity in main battery packet, increase main battery packet as electric car confession
Time, the energy etc. of electricity, to greatly improve the course continuation mileage of electric car.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 shows the flow chart of the battery parlor electricity active equalization method of one embodiment of the invention；
Fig. 2 shows the flow charts of the battery parlor electricity active equalization method of another embodiment of the present invention；
Fig. 3 shows the flow diagram of two battery parlor electricity active equalization methods；
Fig. 4 shows the functional block diagram of the battery parlor electricity active equalization device of one embodiment of the invention；
Fig. 5 shows the structural schematic diagram of a kind of electronic equipment according to an embodiment of the present invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Battery pack includes a main battery packet and at least one secondary cell packet in the present invention, wherein at least one secondary cell
Bao Junyu main battery packet carries out the electricity active equalization across packet, so that main battery packet can provide more electricity to electronic vapour
Vehicle realizes the course continuation mileage for promoting electric car.For a better understanding of the present invention, following embodiment with a main battery packet and
Be illustrated for one secondary cell packet, but in the present invention to the quantity of secondary cell packet without limitation.
Fig. 1 shows the flow chart of the battery parlor electricity active equalization method of one embodiment of the invention.Such as Fig. 1 institute
Show, method includes the following steps:
Step S101 is determined each in the remaining capacity and at least one secondary cell packet of each single battery in main battery packet respectively
The remaining capacity of single battery.
It is wrapped using battery management system BMS (Battery Management System) is available into main battery packet
The remaining capacity of each single battery contained, and get the remaining capacity of each single battery in secondary cell packet.Wherein, remaining electricity
Amount is the current remaining capacity of each single battery.
Herein, in main battery packet the number of single battery and the number of single battery in secondary cell packet be it is identical, and one
One is corresponding, and if included 4 single batteries in main battery packet, A1, A2, A3 and A4 also include 4 single batteries in secondary cell packet,
B1, B2, B3 and B4.The remaining capacity such as A1 of each single battery is 30% in the main battery packet got, A2 36%, A3 are
40%, A4 28%, obtain secondary cell packet in single battery remaining capacity such as B1 be 53%, B2 44%, B3 59%, B4
It is 40%.The above are for example, without limitation, single battery in battery pack can also be with for the number of single battery in battery pack
It include multiple battery packs in a battery pack for single battery group.
It is electric to calculate separately to obtain each single battery remaining capacity and at least one corresponding pair in main battery packet by step S102
The remaining capacity difference of each single battery remaining capacity in the packet of pond.
When calculating, by the remaining capacity of single battery each in main battery packet and each single battery corresponding in secondary cell packet
Remaining capacity subtract each other, obtain remaining capacity difference.Due to there are multiple single batteries in main battery packet and secondary cell packet, obtain
The remaining capacity difference arrived be it is multiple, quantity is identical as the quantity of single battery in main battery packet and secondary cell packet.Such as, secondary cell
The remaining capacity of single battery B1 subtracts the remaining capacity of single battery A1 in main battery packet in packet, and it is poor to obtain a remaining capacity
Value is 23%；The remaining capacity of single battery B2 subtracts the remaining capacity of single battery A2 in main battery packet in secondary cell packet, obtains
It is 8% to a remaining capacity difference；The remaining capacity of single battery B3 subtracts single battery in main battery packet in secondary cell packet
The remaining capacity of A3, obtaining a remaining capacity difference is 19%；The remaining capacity of single battery B4 subtracts master in secondary cell packet
The remaining capacity of single battery A4 in battery pack, obtaining a remaining capacity difference is 12%.
Step S103 is judged whether there is and is greater than or equal to the default remaining capacity difference across the balanced unlatching threshold value of packet.
Obtained multiple remaining capacity differences are judged, judgement is wherein default across Bao Jun with the presence or absence of being greater than or equal to
Weighing apparatus opens the remaining capacity difference of threshold value.Such as presetting across the balanced threshold value of opening of packet is 20%, then judges that there are single in secondary cell packet
Body battery B1 and the remaining capacity difference 23% of single battery A1 in main battery packet be greater than it is default across the balanced unlatching threshold value 20% of packet,
Execute step S104.
It is greater than or equal to the default remaining capacity difference across the balanced unlatching threshold value of packet if it does not exist, then is first not turned on across Bao Jun
Weighing apparatus channel after waiting the single battery remaining capacity in main battery packet to reduce, executes step S101-S103, judges whether
It is default across the balanced remaining capacity difference for opening threshold value of packet in the presence of being greater than or equal to.Step S101-S103 is that circulation executes, with
It can charge in real time to each single battery in main battery packet, realize electricity active equalization.
Step S104 is opened in the corresponding main battery packet of remaining capacity difference in single battery and at least one secondary cell packet
Across the packet equalization channel of single battery, for by the remaining capacity of single battery at least one secondary cell packet into main battery packet
Corresponding single battery is shifted.
Specifically, after judging to exist more than or equal to the default balanced remaining capacity difference for opening threshold value across packet, according to
The existing remaining capacity difference, corresponding open obtain the single battery and secondary cell packet of the main battery packet of remaining capacity difference
Across packet equalization channel between single battery.Across packet equalization channel is connected to main battery packet and monomer electricity corresponding in secondary cell packet
Pond, across packet equalization channel can be one or more, when across packet equalization channel is one, according to the existing first remaining electricity
Amount only allows to carry out between the single battery and secondary cell packet single battery of the relevant main battery packet of existing first remaining capacity
The active equalization of electricity；It is identical as single battery quantity in main battery packet and secondary cell packet when across packet equalization channel is multiple,
According to existing first remaining capacity, only open the single battery of the relevant main battery packet of existing first remaining capacity with
Corresponding across the packet equalization channel of secondary cell packet single battery, carries out the active equalization of electricity.It is set with specific reference to performance
It sets, herein without limitation.
By for across packet equalization channel is one, as judged, there are in single battery B1 in secondary cell packet and main battery packet
The remaining capacity difference 23% of single battery A1, which is greater than, to be preset across the balanced unlatching threshold value 20% of packet, then opens across packet equalization channel
Afterwards, only allow across packet equalization channel of the single battery B1 with single battery A1 in main battery packet using unlatching in the secondary cell packet,
The remaining capacity of single battery B1 in secondary cell packet and single battery A1 in main battery packet are shifted, the active of electricity is completed
It is balanced.By for across packet equalization channel is multiple, as judged, there are single in single battery B1 in secondary cell packet and main battery packet
The remaining capacity difference 23% of body battery A1, which is greater than to preset, opens threshold value 20% across packet equilibrium, then corresponding unlatching secondary cell packet
Across the packet equalization channel of middle single battery B1 and single battery A1 in main battery packet, by the residue of single battery B1 in secondary cell packet
Electricity is shifted with single battery A1 in main battery packet, completes the active equalization of electricity.
Battery parlor electricity active equalization method according to the present invention determines the surplus of each single battery in main battery packet respectively
The remaining capacity of each single battery in remaining electricity and at least one secondary cell packet；Calculate separately to obtain each monomer electricity in main battery packet
The remaining capacity difference of pond remaining capacity and each single battery remaining capacity at least one corresponding secondary cell packet；Judge whether
It is default across the balanced remaining capacity difference for opening threshold value of packet in the presence of being greater than or equal to；If it exists, it is corresponding to open remaining capacity difference
Main battery packet in single battery and at least one secondary cell packet single battery across packet equalization channel, for by least one
The remaining capacity of single battery corresponding single battery into main battery packet is shifted in secondary cell packet.It, can using the present invention
To be charged online to main battery packet, to ensure the electricity in main battery packet, increasing main battery packet is electric car power supply
Time, energy etc., to greatly improve the course continuation mileage of electric car.
Fig. 2 shows the flow charts of the battery parlor electricity active equalization method of a specific embodiment of the invention.Such as Fig. 2
It is shown, method includes the following steps:
Step S201, judges whether vehicle is in driving states.
Since electric car is when stopping driving, it can use charging pile and the operation such as charge carried out to it, increase each battery
The electricity of each single battery in packet.And when electric car is in driving states, the operation such as charge can not be carried out using charging pile,
The prior art can not be replenished in time after the electricity of each single battery is consumed in main battery packet.Under the circumstances, this reality
It applies example and is in timely and effective across the packet electricity active equalization for carrying out battery parlor when driving states for electric car, it is continuous to be promoted
Navigate mileage.Specifically, those skilled in the art can be current according to vehicle state, such as from speed per hour, engine speed, detection vehicle
Whether the various aspects such as peripheral situation variation are judged, judge vehicle currently in driving states.Herein, to specific detection side
Without limitation, the detection mode of any pair of vehicle driving states is suitable for the present invention to formula.
When judging that vehicle is currently at driving states, step S201 is executed.When judging that vehicle is not currently in driving shape
When state, such as vehicle parking ground library, it can use charging pile and the operation such as charge carried out to vehicle, at this point, not having to continue to execute step
Rapid S202.
Step S202 is determined each in the remaining capacity and at least one secondary cell packet of each single battery in main battery packet respectively
The remaining capacity of single battery.
It is electric to calculate separately to obtain each single battery remaining capacity and at least one corresponding pair in main battery packet by step S203
The remaining capacity difference of each single battery remaining capacity in the packet of pond.
Step S204 is judged whether there is and is greater than or equal to the default remaining capacity difference across the balanced unlatching threshold value of packet.
Step S205 is opened in the corresponding main battery packet of remaining capacity difference in single battery and at least one secondary cell packet
Across the packet equalization channel of single battery, for by the remaining capacity of single battery at least one secondary cell packet into main battery packet
Corresponding single battery is shifted.
The description of the above step step S101-S104 in embodiment referring to Fig.1, details are not described herein.
It is each at least one corresponding secondary cell packet to monitor each single battery remaining capacity in main battery packet by step S206
The remaining capacity difference of single battery remaining capacity.
After opening across packet equalization channel, it is also necessary to monitor in real time in main battery packet each single battery remaining capacity with it is corresponding
At least one secondary cell packet in each single battery remaining capacity remaining capacity difference, i.e., will be at least one secondary cell packet
The remaining capacity of single battery is while into main battery packet, corresponding single battery is shifted, it is also necessary to calculate main battery again
The remaining capacity of each single battery remaining capacity and each single battery remaining capacity at least one corresponding secondary cell packet in packet
Difference.
Specifically, in the main battery packet first got the remaining capacity such as A1 of each single battery be 32%, A2 30%, A3
For 33%, A4 25%, the remaining capacity such as B1 for obtaining single battery in secondary cell packet is 46%, B2 44%, B3 59%,
B4 is 40%.Each single battery remaining capacity and each list at least one corresponding secondary cell packet in main battery packet are calculated again
The remaining capacity difference of body battery dump energy.As the remaining capacity of single battery B1 in secondary cell packet subtracts list in main battery packet
The remaining capacity of body battery A1, obtaining a remaining capacity difference is 14%；The remaining capacity of single battery B2 in secondary cell packet
The remaining capacity for subtracting single battery A2 in main battery packet, obtaining a remaining capacity difference is 14%；Monomer in secondary cell packet
The remaining capacity of battery B3 subtracts the remaining capacity of single battery A3 in main battery packet, obtains a remaining capacity difference and is
26%；The remaining capacity of single battery B4 subtracts the remaining capacity of single battery A4 in main battery packet in secondary cell packet, obtains one
A remaining capacity difference is 15%.
Further, since vehicle is under driving states, the remaining capacity of each single battery is consumed in main battery packet,
Remaining capacity is reduced.At this time, it may occur however that exist and be greater than or equal to the default remaining capacity difference across the balanced unlatching threshold value of packet
Situation can execute step S204, judge that there are the residues of single battery A3 in single battery B3 in secondary cell packet and main battery packet
Electricity difference 26% is greater than after the default balanced unlatching threshold value 20% across packet, executes step S205, opens single in the secondary cell packet
Across the packet equalization channel of body battery B3 and single battery A3 in main battery packet, by the remaining capacity of single battery B3 in secondary cell packet
It is shifted with single battery A3 in main battery packet, completes the active equalization of electricity.
It is default across the balanced closing threshold value of packet to judge whether remaining capacity difference is less than by step S207.
By the remaining capacity of single battery at least one secondary cell packet into main battery packet corresponding single battery into
When row transfer, when the remaining capacity of single battery and single battery remaining capacity corresponding in main battery packet remain in secondary cell packet
Remaining electricity difference be less than it is default across packet is balanced close threshold value when, at this point, should not continue by secondary cell packet single battery it is surplus
Remaining electricity corresponding single battery into main battery packet is shifted, and needs to close corresponding across packet equalization channel.
According to each single battery remaining capacity in the obtained main battery packet of monitoring at least one corresponding secondary cell packet
It is default across the balanced closing threshold of packet to judge whether remaining capacity difference is less than for the remaining capacity difference of each single battery remaining capacity
Value closes corresponding across packet equalization channel if so, executing step S208；Otherwise, then continuing will be single at least one secondary cell packet
The remaining capacity of body battery corresponding single battery into main battery packet is shifted.
Specifically, as it is default across the balanced threshold value of closing of packet be 15%, it is before corresponding to open monomer electricity in secondary cell packet
Across the packet equalization channel of single battery A1 in pond B1 and main battery packet obtains the surplus of single battery B1 in secondary cell packet due to monitoring
The remaining capacity difference of the remaining capacity of single battery A1 is 14% in remaining electricity and main battery packet, is less than default across the balanced pass of packet
Threshold value is closed, step S208 is executed.
Step S208, close main battery packet in single battery at least one corresponding secondary cell packet single battery across
Packet equalization channel.
Judge remaining capacity difference be less than it is default across packet it is balanced close threshold value after, the main battery packet that needs to have been switched on
Middle single battery is closed with across the packet equalization channel of single battery at least one corresponding secondary cell packet, no longer will at least
The remaining capacity of single battery corresponding single battery into main battery packet is shifted in one secondary cell packet.Such as secondary cell packet
The remaining capacity difference of the remaining capacity of single battery A1 is 14% in the remaining capacity and main battery packet of middle single battery B1, small
In default across the balanced closing threshold value of packet, single battery B1 and single battery in main battery packet in the secondary cell packet having been switched on are closed
Across the packet equalization channel of A1.
For the voltage consistency for ensureing each single battery in main battery packet and at least one secondary cell packet, each battery pack is promoted
In the service life etc. of each single battery optionally, execute following steps after closing across packet equalization channel, realize each electricity
The remaining capacity active equalization of pond Bao Baonei.
Step S209, judges whether the remaining capacity of each single battery in main battery packet meets balanced open strip in default packet
Part.
Specifically, balanced unlocking condition can be arranged according to performance in default packet, balanced open strip in such as default packet
Part is the lowest threshold of remaining capacity difference between each single battery in main battery pack, phase between each single battery in calculating main battery packet
Mutual remaining capacity difference, when judging that remaining capacity difference is greater than or equal in main battery packet between each single battery that remaining capacity is poor
When the lowest threshold of value, illustrate that the voltage of each single battery in main battery packet is inconsistent, is easy to influence each monomer in main battery packet
The use of battery executes step S210, carries out wrapping interior electric quantity balancing to each single battery in main battery packet；Or in default packet
The unlocking condition that weighs is each single battery remaining capacity and each single battery remaining capacity average value in main battery packet in main battery pack
Difference lowest threshold, the average value of each single battery remaining capacity in main battery packet is first calculated, then master is calculated
The difference of each single battery remaining capacity and average value in battery pack, judges whether each difference is greater than or equal to the minimum threshold of difference
Value illustrates that the voltage of each single battery in main battery packet is inconsistent when the lowest threshold for having difference to be greater than or equal to difference, holds
The use for easily influencing each single battery in main battery packet, executes step S210, each single battery in main battery packet is wrapped in
Electric quantity balancing.It is above for example, specifically to judge whether the remaining capacity of each single battery in main battery packet meets default
Balanced unlocking condition can be configured according to performance in packet, herein without limitation.
Step S210 opens main battery Bao Baonei equalization channel, so that main battery packet carries out wrapping interior electric quantity balancing, until complete
Until main battery Bao Baonei electric quantity balancing.
When the remaining capacity for judging each single battery in main battery packet meets balanced unlocking condition in default packet, master is opened
Equalization channel in battery pack packet will carry out wrapping interior electric quantity balancing between each single battery in main battery packet, until completing main battery packet
In each single battery packet until electric quantity balancing.Active equalization side in existing various battery pack packets can be used in those skilled in the art
Formula realizes main battery Bao Baonei electric quantity balancing, this time without limitation to active equalization mode in wrapping.
Step S211 judges whether each single battery remaining capacity meets balanced in default packet at least one secondary cell packet
Unlocking condition.
Specifically, balanced unlocking condition can be arranged according to performance in default packet, balanced open strip in such as default packet
Part is the lowest threshold of remaining capacity difference between each single battery in secondary cell packet, phase between each single battery in calculating secondary cell packet
Mutual remaining capacity difference, when judging that remaining capacity difference is greater than or equal in secondary cell packet between each single battery that remaining capacity is poor
When the lowest threshold of value, illustrate that the voltage of each single battery in secondary cell packet is inconsistent, is easy to influence each monomer in secondary cell packet
The use of battery executes step S212, carries out wrapping interior electric quantity balancing to each single battery in secondary cell packet；Or in default packet
The unlocking condition that weighs is each single battery remaining capacity and each single battery remaining capacity average value in secondary cell packet in secondary cell packet
Difference lowest threshold, the average value of each single battery remaining capacity in secondary cell packet is first calculated, then pair is calculated
The difference of each single battery remaining capacity and average value in battery pack, judges whether each difference is greater than or equal to the minimum threshold of difference
Value illustrates that the voltage of each single battery in secondary cell packet is inconsistent when the lowest threshold for having difference to be greater than or equal to difference, holds
The use for easily influencing each single battery in secondary cell packet, executes step S212, each single battery in secondary cell packet is wrapped in
Electric quantity balancing.It is above for example, specifically to judge whether the remaining capacity of each single battery in secondary cell packet meets default
Balanced unlocking condition can be configured according to performance in packet, herein without limitation.
Step S212 opens at least one secondary cell Bao Baonei equalization channel, so that at least one secondary cell packet is wrapped
Interior electric quantity balancing, until completing at least one secondary cell Bao Baonei electric quantity balancing.
When the remaining capacity for judging each single battery in secondary cell packet meets balanced unlocking condition in default packet, open secondary
Equalization channel in battery pack packet will carry out wrapping interior electric quantity balancing between each single battery in secondary cell packet, until completing secondary cell packet
In each single battery packet until electric quantity balancing.Active equalization side in existing various battery pack packets can be used in those skilled in the art
Formula realizes secondary cell Bao Baonei electric quantity balancing, this time without limitation to active equalization mode in wrapping.
Further, step S209 and step S210 realizes main battery Bao Baonei electric quantity balancing, step S211 and step S212
Realize secondary cell Bao Baonei electric quantity balancing, the step of electric quantity balancing can execute together in above each battery pack packet, can also root
The execution sequencing for needing to be arranged electric quantity balancing in each battery pack packet is factually applied, does not do the specific restriction of sequence herein.
Further, after executing step S209-S212, it can further recycle and execute step S201-S212, vehicle is worked as in judgement
When being in driving states, lasting from each single battery in secondary cell packet, into main battery packet, each single battery carries out electricity and turns
It moves, promotes the course continuation mileage of electric car.
Specifically, a battery parlor electricity active equalization flow diagram as shown in Figure 3 includes a master in Fig. 3
Battery pack is A packet, and a secondary cell packet is B packet, after judging that vehicle is in driving states, obtains all monomers in A packet and B packet
The remaining capacity difference of battery traverses all remaining capacity differences and is judged, pre- when there is remaining capacity difference to be greater than or equal to
If across packet is balanced open threshold value when, open corresponding across packet equalization channel, when monitor remaining capacity difference be less than it is default across packet
When threshold value is closed in equilibrium, corresponding across packet equalization channel is closed.Then wrap to single battery in B packet the inspection of interior electric quantity balancing
It surveys, when meeting balanced unlocking condition in default packet, single battery remaining capacity difference as shown in Figure 3 reaches balanced in packet and opens
Threshold value opens B Bao Baonei equilibrium, until single battery remaining capacity difference reaches balanced closing threshold value in packet, it is equal to close B Bao Baonei
Weighing apparatus, i.e., until completion B Bao Baonei electric quantity balancing.Execution can be continued cycling through later to A packet and across the packet electricity active equalization of B packet.
Battery parlor electricity active equalization method according to the present invention, realizes and is charged online to main battery packet, protects
Hinder the electricity of each single battery in main battery packet, increases time, energy etc. that main battery packet is electric car power supply, thus significantly
Improve the course continuation mileage of electric car.Further, main battery packet and the voltage consistency of secondary cell Bao Baonei have also been ensured, has been prolonged
The service life of long main battery packet and secondary cell packet makes each battery pack in electric car preferably provide electricity, ensures electronic vapour
The driving performance of vehicle.
Fig. 4 shows the functional block diagram of battery parlor electricity active equalization device according to an embodiment of the present invention.Such as Fig. 4 institute
Show, which includes:
Remaining capacity obtains module 410, suitable for determining the remaining capacity and at least of each single battery in main battery packet respectively
The remaining capacity of each single battery in one secondary cell packet.
Difference calculating module 420, suitable for calculate separately to obtain in main battery packet each single battery remaining capacity with it is corresponding
The remaining capacity difference of each single battery remaining capacity at least one secondary cell packet.
Judge opening module 430, is greater than or equal to the default residue across the balanced unlatching threshold value of packet suitable for judging whether there is
Electricity difference.
Opening module 440, if being suitable for judging, the judgement of opening module 430 is default across the balanced unlatching threshold of packet in the presence of being greater than or equal to
The remaining capacity difference of value is opened in the corresponding main battery packet of remaining capacity difference in single battery and at least one secondary cell packet
Across the packet equalization channel of single battery, for by the remaining capacity of single battery at least one secondary cell packet into main battery packet
Corresponding single battery is shifted.
Optionally, device further include: closedown module 450.
It is electric to be suitable for each single battery remaining capacity and at least one corresponding pair in monitoring main battery packet for closedown module 450
The remaining capacity difference of each single battery remaining capacity in the packet of pond；It judges whether there is to be less than and preset across the balanced closing threshold value of packet
Remaining capacity difference；If so, closing single battery and at least one secondary cell packet in the corresponding main battery packet of remaining capacity difference
Across the packet equalization channel of middle single battery.
Optionally, device further include: driving judgment module 460 and loop module 470.
Driving judgment module 460, suitable for judging whether vehicle is in driving states.
Loop module 470, if being suitable for driving judgment module judges that vehicle is in driving states, circulation executes remaining capacity and obtains
Modulus block 410, difference calculating module 420 judge opening module 430, opening module 440 and/or closedown module 450, until vehicle
It is not at driving states.
Optionally, device further include: main battery Bao Baonei balance module 480 and secondary cell Bao Baonei balance module 490.
Whether main battery Bao Baonei balance module 480, the remaining capacity suitable for judging each single battery in main battery packet are full
Balanced unlocking condition in the default packet of foot；If so, main battery Bao Baonei equalization channel is opened, so that main battery packet carries out wrapping interior electricity
Equilibrium, until completing main battery Bao Baonei electric quantity balancing；
Secondary cell Bao Baonei balance module 490 is suitable for judging each single battery remaining capacity at least one secondary cell packet
Whether satisfaction is default is wrapped interior balanced unlocking condition；If so, at least one secondary cell Bao Baonei equalization channel is opened, at least one
A secondary cell packet carries out wrapping interior electric quantity balancing, until completing at least one secondary cell Bao Baonei electric quantity balancing.
Wherein, the concrete operating principle of above-mentioned modules can refer to the description of corresponding steps in embodiment of the method, herein
It repeats no more.
The invention also includes a kind of electric cars comprising Fig. 4 embodiment battery parlor electricity active equalization device
In each module, the course continuation mileage of the electric car can greatly promote.
As shown in figure 5, the electronic equipment may include: processor (processor) 502, communication interface
(Communications Interface) 504, memory (memory) 506 and communication bus 508.
Wherein:
Processor 502, communication interface 504 and memory 506 complete mutual communication by communication bus 508.
Communication interface 504, for being communicated with the network element of other equipment such as client or other servers etc..
Processor 502 can specifically execute the collision processing method embodiment of above-mentioned robot for executing program 510
In correlation step.
Specifically, program 510 may include program code, which includes computer operation instruction.
Processor 502 may be central processor CPU or specific integrated circuit ASIC (Application
Specific Integrated Circuit), or be arranged to implement the integrated electricity of one or more of the embodiment of the present invention
Road.The one or more processors that electronic equipment includes can be same type of processor, such as one or more CPU；It can also
To be different types of processor, such as one or more CPU and one or more ASIC.
Memory 506, for storing program 510.Memory 506 may include high speed RAM memory, it is also possible to further include
Nonvolatile memory (non-volatile memory), for example, at least a magnetic disk storage.
Program 510 specifically can be used for so that processor 502 executes the battery parlor electricity in above-mentioned any means embodiment
Measure active equalization method.The specific implementation of each step may refer to above-mentioned battery parlor electricity active equalization implementation in program 510
Corresponding description in corresponding steps and unit in example, this will not be repeated here.Those skilled in the art can be understood that
It arrives, for convenience and simplicity of description, the equipment of foregoing description and the specific work process of module, can implement with reference to preceding method
Corresponding process description in example, details are not described herein.
Algorithm and display are not inherently related to any particular computer, virtual system, or other device provided herein.
Various general-purpose systems can also be used together with teachings based herein.As described above, it constructs required by this kind of system
Structure be obvious.In addition, the present invention is also not directed to any particular programming language.It should be understood that can use various
Programming language realizes summary of the invention described herein, and the description done above to language-specific is to disclose this hair
Bright preferred forms.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that implementation of the invention
Example can be practiced without these specific details.In some instances, well known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this specification.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of the various inventive aspects,
Above in the description of exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the disclosed method should not be interpreted as reflecting the following intention: i.e. required to protect
Shield the present invention claims features more more than feature expressly recited in each claim.More precisely, such as right
As claim reflects, inventive aspect is all features less than single embodiment disclosed above.Therefore, it then follows tool
Thus claims of body embodiment are expressly incorporated in the specific embodiment, wherein each claim conduct itself
Separate embodiments of the invention.
Those skilled in the art will understand that can be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more devices different from this embodiment.It can be the module or list in embodiment
Member or component are combined into a module or unit or component, and furthermore they can be divided into multiple submodule or subelement or
Sub-component.Other than such feature and/or at least some of process or unit exclude each other, it can use any
Combination is to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so disclosed
All process or units of what method or apparatus are combined.Unless expressly stated otherwise, this specification is (including adjoint power
Benefit require, abstract and attached drawing) disclosed in each feature can carry out generation with an alternative feature that provides the same, equivalent, or similar purpose
It replaces.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments mean it is of the invention
Within the scope of and form different embodiments.For example, in detail in the claims, embodiment claimed it is one of any
Can in any combination mode come using.
Various component embodiments of the invention can be implemented in hardware, or to run on one or more processors
Software module realize, or be implemented in a combination thereof.It will be understood by those of skill in the art that can be used in practice
Microprocessor or digital signal processor (DSP) are realized in merchandise news Intelligent configuration device according to an embodiment of the present invention
Some or all components some or all functions.The present invention is also implemented as executing side as described herein
Some or all device or device programs (for example, computer program and computer program product) of method.It is such
It realizes that program of the invention can store on a computer-readable medium, or can have the shape of one or more signal
Formula.Such signal can be downloaded from an internet website to obtain, and perhaps be provided on the carrier signal or with any other shape
Formula provides.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and ability
Field technique personnel can be designed alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between parentheses should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Element or step listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of multiple such
Element.The present invention can be by means of including the hardware of several different elements and being come by means of properly programmed computer real
It is existing.In the unit claims listing several devices, several in these devices can be through the same hardware branch
To embody.The use of word first, second, and third does not indicate any sequence.These words can be explained and be run after fame
Claim.
Claims (11)
1. a kind of battery parlor electricity active equalization method, which is characterized in that the battery pack is including a main battery packet and extremely
A few secondary cell packet, which comprises
Remaining capacity obtaining step, determine in the main battery packet respectively the remaining capacity of each single battery and it is described at least one
The remaining capacity of each single battery in secondary cell packet；
Difference calculates step, calculate separately to obtain in the main battery packet each single battery remaining capacity with it is corresponding at least one
The remaining capacity difference of each single battery remaining capacity in secondary cell packet；
Step is opened in judgement, is judged whether there is to be greater than or equal to and be preset across the balanced remaining capacity difference for opening threshold value of packet；
Step is opened, if the judgement unlatching step judgement is default across the residue electricity for wrapping balanced unlatching threshold value in the presence of being greater than or equal to
Difference is measured, single battery and list at least one secondary cell packet in the corresponding main battery packet of the remaining capacity difference are opened
Across the packet equalization channel of body battery, for the remaining capacity of single battery at least one secondary cell packet is right into main battery packet
The single battery answered is shifted.
2. according to the method described in claim 1, wherein, after the unlatching step, the method also includes:
Step is closed, it is each at least one corresponding secondary cell packet to monitor each single battery remaining capacity in the main battery packet
The remaining capacity difference of single battery remaining capacity；It is default across the balanced closing threshold of packet to judge whether the remaining capacity difference is less than
Value；If so, close single battery in the main battery packet at least one corresponding secondary cell packet single battery across Bao Jun
Weighing apparatus channel.
3. according to the method described in claim 2, wherein, the method also includes:
Judge whether vehicle is in driving states；
If so, circulation executes the remaining capacity obtaining step, the difference calculates step, step is opened in the judgement, described
Step and/or the closing step are opened, until vehicle is not at driving states.
4. method according to any one of claim 1-3, wherein the method also includes:
Judge whether the remaining capacity of each single battery in the main battery packet meets balanced unlocking condition in default packet；
If so, the main battery Bao Baonei equalization channel is opened, so that the main battery packet carries out wrapping interior electric quantity balancing, until complete
Until the main battery Bao Baonei electric quantity balancing；
Judge whether each single battery remaining capacity meets balanced unlocking condition in default packet at least one described secondary cell packet；
If so, at least one secondary cell Bao Baonei equalization channel is opened, so that at least one described secondary cell packet is wrapped
Interior electric quantity balancing, until completing at least one secondary cell Bao Baonei electric quantity balancing.
5. a kind of battery parlor electricity active equalization device, which is characterized in that the battery pack is including a main battery packet and extremely
A few secondary cell packet, described device include:
Remaining capacity obtains module, suitable for determine in the main battery packet respectively the remaining capacity of each single battery and it is described at least
The remaining capacity of each single battery in one secondary cell packet；
Difference calculating module, suitable for calculate separately to obtain in the main battery packet each single battery remaining capacity with it is corresponding at least
The remaining capacity difference of each single battery remaining capacity in one secondary cell packet；
Judge opening module, it is poor suitable for judging whether there is the remaining capacity for being greater than or equal to and presetting and opening threshold value across packet equilibrium
Value；
Opening module, if default across the surplus of the balanced unlatching threshold value of packet in the presence of being greater than or equal to suitable for the judgement opening module judgement
Remaining electricity difference opens single battery and at least one secondary cell packet in the corresponding main battery packet of the remaining capacity difference
Across the packet equalization channel of middle single battery, for by the remaining capacity of single battery at least one secondary cell packet to main battery packet
In corresponding single battery shifted.
6. device according to claim 5, wherein described device further include:
Closedown module, suitable for each single battery remaining capacity in the monitoring main battery packet and at least one corresponding secondary cell packet
In each single battery remaining capacity remaining capacity difference；It judges whether there is and is less than the default residue across the balanced closing threshold value of packet
Electricity difference；If so, closing single battery and at least one secondary electricity in the corresponding main battery packet of the remaining capacity difference
Across the packet equalization channel of single battery in the packet of pond.
7. device according to claim 6, wherein described device further include:
Driving judgment module, suitable for judging whether vehicle is in driving states；
Loop module, if being suitable for the driving judgment module judges that vehicle is in driving states, circulation executes the remaining capacity
Module, the difference calculating module, the judgement opening module, the opening module and/or the closedown module are obtained, until
Vehicle is not at driving states.
8. the device according to any one of claim 5-7, wherein described device further include:
Main battery Bao Baonei balance module, suitable for judging it is pre- whether the remaining capacity of each single battery in the main battery packet meets
If balanced unlocking condition in packet；If so, open the main battery Bao Baonei equalization channel, wrapped for the main battery packet in
Electric quantity balancing, until completing the main battery Bao Baonei electric quantity balancing；
Secondary cell Bao Baonei balance module is suitable for judging at least one described secondary cell packet whether is each single battery remaining capacity
Meet balanced unlocking condition in default packet；If so, open at least one secondary cell Bao Baonei equalization channel, for it is described extremely
A few secondary cell packet carries out wrapping interior electric quantity balancing, until completing at least one secondary cell Bao Baonei electric quantity balancing.
9. a kind of electric car, which is characterized in that actively equal including battery parlor electricity described in any one of claim 5-8
Weigh device.
10. a kind of electronic equipment, comprising: processor, memory, communication interface and communication bus, the processor, the storage
Device and the communication interface complete mutual communication by the communication bus；
The memory executes the processor as right is wanted for storing an at least executable instruction, the executable instruction
Ask the corresponding operation of battery parlor electricity active equalization method described in any one of 1-4.
11. a kind of computer storage medium, an at least executable instruction, the executable instruction are stored in the storage medium
Processor is set to execute such as the corresponding operation of battery parlor electricity active equalization method of any of claims 1-4.
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| CN201811167459.5A CN109193050B (en) | 2018-10-08 | 2018-10-08 | Active equalization method and device for electric quantity among battery packs |
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| CN201811167459.5A CN109193050B (en) | 2018-10-08 | 2018-10-08 | Active equalization method and device for electric quantity among battery packs |
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| US11705741B2 (en) | 2020-07-24 | 2023-07-18 | Inventus Power, Inc. | Mode-based disabling of communication bus of a battery management system |
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