CN108995549A - Electric vehicle electric quantity of single batteries equalizing circuit, device and method - Google Patents
Electric vehicle electric quantity of single batteries equalizing circuit, device and method Download PDFInfo
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- CN108995549A CN108995549A CN201810716755.XA CN201810716755A CN108995549A CN 108995549 A CN108995549 A CN 108995549A CN 201810716755 A CN201810716755 A CN 201810716755A CN 108995549 A CN108995549 A CN 108995549A
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- battery
- electric quantity
- single batteries
- electric vehicle
- circuit
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The present invention provides a kind of electric vehicle electric quantity of single batteries equalizing circuit, device and method, wherein electric vehicle electric quantity of single batteries equalizing circuit includes multiple battery terminal connections, an electric quantity balancing module is connected between per the two adjacent battery terminal connections, the electric quantity balancing module includes two diodes of reverse parallel connection, and the model of the diode is identical.A kind of electric vehicle electric quantity of single batteries equalizing circuit of the invention, device and method, low in cost, control efficiency is high, and speed is fast, and structure is simple, is suitable for the battery system of most electric vehicles, improves the service life and capacity usage ratio of battery.
Description
Technical field
The present invention relates to electrician's control technology field more particularly to a kind of electric vehicle electric quantity of single batteries equalizing circuits, dress
It sets and method.
Background technique
It currently, is all both at home and abroad to connect for object, to each of battery pack to the electric quantity balancing of batteries of electric automobile group
Series circuit carries out equilibrium respectively.Equalizing circuit is complicated, and component is various.
It is balanced for external pure electric automobile battery capacity, active equalization Functional Design is mostly used, extra electricity is moved to
In the lower battery of monomer electricity.When every serializer circuit to battery pack carries out balanced, balanced component is various, and structure is complicated.
And passive type Equalization Design is widely used in the country, it will be more than electricity with heat energy dissipation.When every serializer circuit to battery pack carries out
When weighing apparatus, electric quantity loss is serious, reduces the utilization rate of automobile battery power.
Summary of the invention
In view of the deficiency of the prior art, the present invention provides a kind of electric vehicle electric quantity of single batteries equalizing circuit, dress
It sets and method, low in cost, control efficiency is high, and speed is fast, and structure is simple, it is suitable for the battery system of most electric vehicles,
Improve the service life and capacity usage ratio of battery.
To achieve the goals above, the present invention provides a kind of electric vehicle electric quantity of single batteries equalizing circuit, including multiple electricity
Pond connecting pin is often connected with an electric quantity balancing module, the electric quantity balancing module packet between the two adjacent battery terminal connections
Two diodes of reverse parallel connection are included, the model of the diode is identical.
A kind of electric quantity of single batteries based on electric vehicle electric quantity of single batteries equalizing circuit of the present invention of the invention
Balancer, including a circuit board are fixed on the electric vehicle electric quantity of single batteries equalizing circuit of the circuit board and multiple
Pin, the pin and the battery terminal connections connect one to one.
A kind of electric quantity of single batteries based on electric vehicle electric quantity of single batteries equalizing circuit of the present invention of the invention
Equalization methods, comprising steps of
S1: the electric vehicle electric quantity of single batteries accessed needed for being determined according to the practical structures of a target battery group circuit
The quantity of equalizing circuit；The target battery group circuit includes an at least battery assembly module, and the battery assembly module includes at least
Two parallel branches, each parallel branch include the identical a plurality of single batteries of quantity；
S2: the electric vehicle electric quantity of single batteries equalizing circuit is connected into the target battery group circuit, so that each
The two adjacent monomer corresponding with the adjacent parallel branch between the adjacent single battery of every the two of the parallel branch
An electric quantity balancing module is connected between battery.
Preferably, the quantity of the battery terminal connections of the electric vehicle electric quantity of single batteries equalizing circuit with it is corresponding described in
The quantity of the parallel branch of battery assembly module is identical；It is equal that the battery assembly module accesses the electric vehicle electric quantity of single batteries
The quantity of weighing apparatus circuit is that the quantity of the single battery in the parallel branch of the battery assembly module subtracts one；
The battery terminal connections of the electric vehicle electric quantity of single batteries equalizing circuit are connected to pair correspondingly respectively
Between the two adjacent single batteries for answering each parallel branch same position of the battery assembly module.
The present invention due to use above technical scheme, make it have it is following the utility model has the advantages that
It include the use of the structure of two diodes of reverse parallel connection by electric quantity balancing module, so that electric vehicle of the invention
Electric quantity of single batteries equalizing circuit can judge the height of electricity using the unilateral conduction of diode and the blanking voltage of diode
It is low, realize the conducting of corresponding charging circuit, and then realize and adjust to the automatic equalization of the electricity of target battery group circuit, and have
Have the advantages that low in cost, control efficiency is high, speed is fast and structure is simple, and is adapted to the battery system of most electric vehicles
System, improves service life, capacity usage ratio and the course continuation mileage of battery well.One kind of the embodiment of the present invention is based on this reality
The electric quantity of single batteries balancer of the electric vehicle electric quantity of single batteries equalizing circuit of example is applied, electric vehicle electric quantity of single batteries is equal
Weighing apparatus circuit integration is the circuit board with pin, so that the attended operation of electric vehicle electric quantity of single batteries equalizing circuit is more just
It is prompt.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the electric vehicle electric quantity of single batteries balancer of the embodiment of the present invention；
Fig. 2 is the flow chart of the electric vehicle electric quantity of single batteries equalization methods of the embodiment of the present invention；
Fig. 3~Fig. 5 is the structural schematic diagram of the target battery group circuit of the embodiment of the present invention.
Specific embodiment
Below according to attached FIG. 1 to FIG. 5, presently preferred embodiments of the present invention is provided, and is described in detail, is enabled more preferable geographical
Solve function of the invention, feature.
Referring to Fig. 1, a kind of electric vehicle electric quantity of single batteries equalizing circuit 1 of the embodiment of the present invention, including multiple batteries
Connecting pin 11 is often connected with an electric quantity balancing module 12 between two adjacent battery terminal connections 11, and electric quantity balancing module 12 includes
Two diode D of reverse parallel connection, the model of diode D are identical.
A kind of electric vehicle electric quantity of single batteries equalizing circuit 1 of the embodiment of the present invention utilizes the unilateral conduction of diode D
The height of electricity is judged with the blanking voltage of diode D, and realizes the conducting of corresponding charging circuit, for improving electric car
The battery and course continuation mileage of battery pack are very helpful.
A kind of single battery of electric vehicle electric quantity of single batteries equalizing circuit 1 based on the present embodiment of the embodiment of the present invention
Electric quantity balancing device, including a circuit board 2 are fixed on the electric vehicle electric quantity of single batteries equalizing circuit 1 of circuit board 2 and multiple draw
Foot 3, pin 3 and battery terminal connections 11 connect one to one.
Please refer to FIG. 1 to FIG. 5, the embodiment of the present invention it is a kind of based on the balanced electricity of electric vehicle electric quantity of single batteries of the invention
The electric quantity of single batteries equalization methods on road 1, comprising steps of
S1: the electric vehicle electric quantity of single batteries accessed needed for being determined according to the practical structures of a target battery group circuit 4 is equal
The quantity of weighing apparatus circuit 1；Target battery group circuit 4 includes an at least battery assembly module 41, and battery assembly module 41 includes at least two simultaneously
Join branch, each parallel branch includes the identical a plurality of single batteries 411 of quantity；
S2: 411 electric quantity balancing circuit 1 of electric vehicle single battery is connected into target battery group circuit 4, so that each parallel connection
It is connected between two neighboring unit cell 411 corresponding with adjacent parallel branch between every two neighboring unit cell 411 of branch
One electric quantity balancing module 12.
Wherein, the quantity of the battery terminal connections 11 of 411 electric quantity balancing circuit 1 of electric vehicle single battery and corresponding battery pack list
The quantity of the parallel branch of member 41 is identical；The quantity of the access 411 electric quantity balancing circuit 1 of electric vehicle single battery of battery assembly module 41
Quantity for single battery 411 in the parallel branch of the battery assembly module 41 subtracts one；Electric vehicle single battery 411 electric quantity balancing electricity
The battery terminal connections 11 on road 1 are connected to the two of each parallel branch same position of corresponding battery assembly module 41 correspondingly respectively
Between neighboring unit cell 411.
A kind of single battery electricity based on electric vehicle electric quantity of single batteries equalizing circuit 1 of the invention of the embodiment of the present invention
Equalization methods are measured, the electric quantity balancing module 12 of connection diode D composition is passed through.It will be parallel with one another with a pair of reversed diode D
411 anode of the identical single battery in series circuit connected in series relative position connect, make opposite position in parallel in battery of electric vehicle system
Set the same 411 electric quantity balancing of single battery, it is ensured that in batteries in parallel connection system, 411 electricity of single battery of each column is mutually equal
Weighing apparatus.
Fig. 4 is 2 × 2 battery assembly module 41 for being connected with electric quantity balancing module 12, and the working principle of balanced electricity is such as
Under:
Firstly, diode D is to four single batteries 411: first single battery 4111, second comonomer battery 4112, third
The positive terminal potential of single battery 4113 and the 4th single battery 4114 compare (set the electricity of first single battery 4111 as
C, the electricity of second comonomer battery 4112 are b, and the electricity of Third monomer battery 4113 is c, the electricity of the 4th single battery 4114
For d, and electricity c > a, b > d, a+b=c+d).Obtaining Vb > Vc, then left side diode D conducting, second comonomer battery 4112 give third list
4113 charging circuit of body battery is formed.
Then, 4112 voltage of second comonomer battery declines, and 4113 voltage of Third monomer battery rises, and leads to a+b < c+d.Then
Since the two is to be connected in parallel, therefore can mutually charge.
Then, diode D determines automatic cut-off after b=d, the cut-off of b c charging circuit.B=c, a+b=c+d at this time, so
A=c.Equilibrium is completed.
Finally, the opposite variation of the voltage of each single battery 411 of diode D real-time monitoring is implemented equal when difference is larger
Weighing apparatus.
Fig. 5 is 3 × 4 battery assembly module 41 for being connected with electric quantity balancing module 12, and each parallel connection in systems is opposite
In the identical column in position, there is 7 kinds of possibility for opposite electricity, now only with the 5th single battery the 4115, the 6th of wherein secondary series
Single battery 4116, the 7th single battery 4117 are research object, and the working principle of balanced electricity is as follows:
If the electricity of the 5th single battery 4115 is e, the electricity of the 6th single battery 4116 is f, the 7th single battery
4117 electricity is g, and there are several types of the possibility of charge condition: e > f > g, e > g > f, f > e > g, f > g > e, g > e > f, g > f > e and e
=f=g.
Now each situation is described respectively:
1, electricity e > f > g
Firstly, the 5th single battery 4115 charges to the 6th single battery 4116 and the 7th single battery 4117 simultaneously.When
When electricity e=f, the 5th single battery 4115 and the 6th single battery 4116 simultaneously charge to the 7th single battery 4117, until e
=f=g.
2, electricity e > g > f
Firstly, the 5th single battery 4115 charges to the 6th single battery 4116 and the 7th single battery 4117 simultaneously.When
When electricity e=f, the 5th single battery 4115 and the 7th single battery 4117 simultaneously charge to the 6th single battery 4116, until e
=f=g.
3, electricity f > e > g
Firstly, the 6th single battery 4116 charges to the 5th single battery 4115 and the 7th single battery 4117 simultaneously.When
When electricity f=e, the 5th single battery 4115 and the 6th single battery 4116 simultaneously charge to the 7th single battery 4117, until e
=f=g.
4, electricity f > g > e
Firstly, the 6th single battery 4116 charges to the 5th single battery 4115 and the 7th single battery 4117 simultaneously.When
When electricity f=g, the 6th single battery 4116 and the charging of the 7th single battery 4117 simultaneously charge to the 5th single battery 4115,
Until e=f=g.
5, electricity g > e > f
Firstly, the 7th single battery 4117 charges to the 5th single battery 4115 and the 6th single battery 4116 simultaneously.When
When electricity g=e, the 5th single battery 4115 and the 7th single battery 4117 simultaneously charge to the 6th single battery 4116, until e
=f=g.
6, electricity g > f > e
Firstly, the 7th single battery 4117 charges to the 5th single battery 4115 and the 6th single battery 4116 simultaneously.When
When electricity g=f, the 7th single battery 4117 and the 6th single battery 4116 simultaneously charge to the 5th single battery 4115, until e
=f=g.
7, electricity e=f=g
Diode D cut-off, all 411 charging circuit of single battery open circuits.
In actual use, often number is more for the single battery 411 in target battery group circuit 4, the embodiment of the present invention
A kind of electric vehicle electric quantity of single batteries equalizing circuit 1 based on the present embodiment electric quantity of single batteries balancer, will be electronic
Vehicle electric quantity of single batteries equalizing circuit 1 is integrated into the circuit board 2 with pin 3, so that the balanced electricity of electric vehicle electric quantity of single batteries
The attended operation on road 1 is more convenient, in use, will can directly go here and there and connect identical 411 anode of single battery in relative position and list
The pin 3 of body equalization device for battery electric quantity connects.
A kind of electric vehicle electric quantity of single batteries equalizing circuit of the embodiment of the present invention, device and method have it is low in cost,
Control efficiency is high, the advantage that speed is fast and structure is simple, and is adapted to the battery system of most electric vehicles, mentions well
The high service life and capacity usage ratio of battery.
The present invention has been described in detail with reference to the accompanying drawings, those skilled in the art can be according to upper
It states and bright many variations example is made to the present invention.Thus, certain details in embodiment should not constitute limitation of the invention, this
Invention will be using the range that the appended claims define as protection scope of the present invention.
Claims (4)
1. a kind of electric vehicle electric quantity of single batteries equalizing circuit, which is characterized in that including multiple battery terminal connections, per adjacent two
An electric quantity balancing module is connected between the battery terminal connections, the electric quantity balancing module includes two 2 poles of reverse parallel connection
Pipe, the model of the diode are identical.
2. a kind of electric quantity of single batteries equilibrium dress based on electric vehicle electric quantity of single batteries equalizing circuit described in claim 1
Set, which is characterized in that including a circuit board, be fixed on the circuit board the electric vehicle electric quantity of single batteries equalizing circuit and
Multiple pins, the pin and the battery terminal connections connect one to one.
3. a kind of electric quantity of single batteries equilibrium side based on electric vehicle electric quantity of single batteries equalizing circuit described in claim 1
Method, comprising steps of
S1: the electric vehicle electric quantity of single batteries accessed needed for being determined according to the practical structures of a target battery group circuit is balanced
The quantity of circuit；The target battery group circuit includes an at least battery assembly module, and the battery assembly module includes at least two simultaneously
Join branch, each parallel branch includes the identical a plurality of single batteries of quantity；
S2: the electric vehicle electric quantity of single batteries equalizing circuit is connected into the target battery group circuit, so that each described
The two adjacent single battery corresponding with the adjacent parallel branch between the adjacent single battery of every the two of parallel branch
Between be connected with an electric quantity balancing module.
4. electric quantity of single batteries equalization methods according to claim 3, which is characterized in that the electric vehicle single battery electricity
The quantity for measuring the battery terminal connections of equalizing circuit is identical as the quantity of the parallel branch of the corresponding battery assembly module；
The battery assembly module access the electric vehicle electric quantity of single batteries equalizing circuit quantity be the battery assembly module it is described simultaneously
The quantity of the connection branch road single battery subtracts one；
The battery terminal connections of the electric vehicle electric quantity of single batteries equalizing circuit are connected to corresponding institute correspondingly respectively
Between the two adjacent single batteries for stating each parallel branch same position of battery assembly module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810716755.XA CN108995549B (en) | 2018-07-03 | 2018-07-03 | Electric quantity balancing circuit, device and method for single batteries of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810716755.XA CN108995549B (en) | 2018-07-03 | 2018-07-03 | Electric quantity balancing circuit, device and method for single batteries of electric vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108995549A true CN108995549A (en) | 2018-12-14 |
| CN108995549B CN108995549B (en) | 2020-06-16 |
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ID=64598866
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810716755.XA Active CN108995549B (en) | 2018-07-03 | 2018-07-03 | Electric quantity balancing circuit, device and method for single batteries of electric vehicle |
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| FR2925783A1 (en) * | 2007-12-21 | 2009-06-26 | Peugeot Citroen Automobiles Sa | Storage cell group charging/discharging system for e.g. electric traction motor vehicle, has charging/discharging applying current when condition is attained and stopping conditions are not attained such that intensity of current is limited |
| US20120223669A1 (en) * | 2009-11-19 | 2012-09-06 | Stefan Butzmann | Method and device for balancing electrical voltages in electrical accumulator units |
| CN105644378A (en) * | 2015-07-24 | 2016-06-08 | 深圳太研能源科技有限公司 | Emergency start-up device and method of automobile |
| CN106100078A (en) * | 2016-08-30 | 2016-11-09 | 山东得普达电机股份有限公司 | A kind of non-dissipative equalizing controls device and control method |
| CN106080252A (en) * | 2016-08-09 | 2016-11-09 | 金龙联合汽车工业（苏州）有限公司 | A kind of batteries of electric automobile group equalization methods |
| CN106427627A (en) * | 2016-10-12 | 2017-02-22 | 武汉大学 | Quick charging system used for power grid friendly type new energy automobile and charging method of quick charging system |
| CN108039759A (en) * | 2018-01-03 | 2018-05-15 | 昆明理工大学 | A kind of lithium-ion battery systems multiplex mode high efficiency energy balanced device and its control method |
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2018
- 2018-07-03 CN CN201810716755.XA patent/CN108995549B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2925783A1 (en) * | 2007-12-21 | 2009-06-26 | Peugeot Citroen Automobiles Sa | Storage cell group charging/discharging system for e.g. electric traction motor vehicle, has charging/discharging applying current when condition is attained and stopping conditions are not attained such that intensity of current is limited |
| US20120223669A1 (en) * | 2009-11-19 | 2012-09-06 | Stefan Butzmann | Method and device for balancing electrical voltages in electrical accumulator units |
| CN105644378A (en) * | 2015-07-24 | 2016-06-08 | 深圳太研能源科技有限公司 | Emergency start-up device and method of automobile |
| CN106080252A (en) * | 2016-08-09 | 2016-11-09 | 金龙联合汽车工业（苏州）有限公司 | A kind of batteries of electric automobile group equalization methods |
| CN106100078A (en) * | 2016-08-30 | 2016-11-09 | 山东得普达电机股份有限公司 | A kind of non-dissipative equalizing controls device and control method |
| CN106427627A (en) * | 2016-10-12 | 2017-02-22 | 武汉大学 | Quick charging system used for power grid friendly type new energy automobile and charging method of quick charging system |
| CN108039759A (en) * | 2018-01-03 | 2018-05-15 | 昆明理工大学 | A kind of lithium-ion battery systems multiplex mode high efficiency energy balanced device and its control method |
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| CN108995549B (en) | 2020-06-16 |
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