CN103312003A - Intelligent balancing management system for batteries - Google Patents
Intelligent balancing management system for batteries Download PDFInfo
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- CN103312003A CN103312003A CN2013102625205A CN201310262520A CN103312003A CN 103312003 A CN103312003 A CN 103312003A CN 2013102625205 A CN2013102625205 A CN 2013102625205A CN 201310262520 A CN201310262520 A CN 201310262520A CN 103312003 A CN103312003 A CN 103312003A
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- management system
- matrix switch
- main control
- battery
- control unit
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- 239000011159 matrix material Substances 0.000 claims abstract description 31
- 238000004146 energy storage Methods 0.000 claims abstract description 17
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 5
- 229910018095 Ni-MH Inorganic materials 0.000 claims description 3
- 229910018477 Ni—MH Inorganic materials 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 239000003570 air Substances 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 230000000295 complement effect Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 3
- 239000000178 monomer Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
The invention relates to an intelligent balancing management system for batteries and belongs to the technical field of electric vehicles. The balancing management system comprises a voltage collecting system, a matrix switch and a single battery pack and further comprises a standby energy storage battery, a main control unit, an execution module and a direct current (DC)-DC converter. The standby energy storage battery is respectively connected with the matrix switch and the DC-DC converter; the voltage collecting system is respectively connected with the main control unit, the matrix switch and the single battery pack; the main control unit is connected with the matrix switch through the execution module and is connected with the standby energy storage battery through the DC-DC converter; and the matrix switch is connected with the single battery pack. The intelligent balancing management system can effectively solve the problem of over charging and over discharging which are caused by consistency between single batteries, functions of the intelligent balancing management system comprise balance during a charging period and balance during a discharging period, an energy cycle complementary charging and discharging mode is adopted, and the whole system is safe and reliable, effectively improves performance of the battery pack and prolongs service life of the battery pack.
Description
Technical field
The invention belongs to the vehicle technology field, particularly the electrokinetic cell operation technique is carried out balanced management by using this equalizing system to power-supply system, can effectively bring into play the battery efficiency, prolongs the battery course continuation mileage, extending battery life and use safety.
Background technology
The more piece electrokinetic cell balanced control problem of connecting, in recent years, domestic and international many scholars have carried out large quantity research to this, proposed multiple solution.In common balanced control strategy, exist various defectives, such as the passive balanced way that has extensively adopted in the lithium battery management system.As shown in Figure 1, several cell 15 usefulness connectors 14 are together in series, and form the battery pack of a required voltage.Draw respectively a wire from the positive pole of each cell, draw wire from the negative pole of last cell, as common zero line, be connected with the corresponding circuit board port of System of voltage acquisition respectively.Bypass electronic load 13 respectively in parallel between the anodal negative pole of each cell, when charger 11 is given batteries charging, System of voltage acquisition 12 detects the voltage of each cell, bypass electronic load 13 conductings with high-tension that cell, this mode is to utilize electronic load that power consumption is fallen, have a large amount of losses of energy and heating problem, battery uses potential safety hazard especially.
The active equalization mode adopts degree of flying capacitive method.As shown in Figure 2, several cells 25 are together in series by connector 24, form the battery pack of a required voltage.Draw respectively a wire from the positive pole of each cell, draw wire from the negative pole of last cell, as common zero line, be connected with the port that the circuit board port of System of voltage acquisition 23 is connected with matrix switch respectively; System of voltage acquisition 23 is connected with matrix switch 22, and matrix switch 22 is connected with degree of flying electric capacity 21.During battery power discharge, System of voltage acquisition 23 detects the voltage of each cell, and the matrix switch of that cell of low-voltage is opened conducting degree of flying capacitor discharge.The method exists volume excessive, and cost is higher, the complicated high problem of failure rate that causes of capacitance management system.
Summary of the invention
The objective of the invention is in order to solve the deficiency of prior art existence, a kind of battery intelligent balanced management system is provided, this balanced management system energy-saving safe, lead simultaneously the battery management pattern of passive equilibrium, can carry out equilibrium according to the cell that expection is set dynamic power system, timely discovery overcharges, crosses and put monomer and additional, transfer, realize the peak load shifting of monomer battery voltage in the battery pack, so that single battery evenly rises or descends in the battery pack, effectively bring into play the efficiency of battery pack, extending battery life.
The present invention solves the technical scheme that above technical problem adopts:
A kind of battery intelligent balanced management system that the present invention proposes, this equalizing system comprises System of voltage acquisition, matrix switch and cell group, also comprises energy-storage battery for subsequent use, main control unit, Executive Module, DC-DC transducer; Described energy-storage battery for subsequent use links to each other with matrix switch, DC-DC transducer respectively, and System of voltage acquisition links to each other with main control unit, matrix switch and cell group respectively; Main control unit links to each other with matrix switch by Executive Module, links to each other with energy-storage battery for subsequent use by the DC-DC transducer; Matrix switch links to each other with the cell group.
Described energy-storage battery for subsequent use is that any one can be used as the product of electrokinetic cell among lead-acid battery, Ni-MH battery, the lithium battery.
Described main control unit comprises the peripheral circuit of CPU processor and this processor, and peripheral circuit comprises reset circuit, clock circuit and 16MFLASH circuit; Peripheral circuit and CPU processor concentrate on the same printed wiring board, and the line on the printed wiring board between the prefabricated various piece is realized electrical connection.
Described System of voltage acquisition is formed by a plurality of buffer circuits and a plurality of difference channel common combination.The number of buffer circuit and difference channel is identical with the number that is managed cell.
Described DC-DC transducer is to be to process carrying out the voltage of energy when shifting between battery pack and the energy-storage battery for subsequent use, to guarantee the smooth transfer of energy.
Described cell group is the battery pack that monomer voltage is lower than 6V.
Described matrix switch refers to determine corresponding latch input data by the row address of input and column address, controls the switch of selected crosspoint break-make.
The beneficial effect that the present invention has:
Cell group of the present invention is implemented effectively to be connected by effective wire harness and drive system of electric motor vehicle.
When battery power discharge, System of voltage acquisition is to each cell state implementation system scanning of battery pack, main control unit will scan the aanalogvoltage input signal that obtains automatically to carry out A/D and converts digital signal to, and then the lower limit set value with monomer battery voltage signal and main control unit inner setting compares.When monomer battery voltage is lower than lower limit set value, open the corresponding matrix switch of cell by main control unit control Executive Module, and open the DC-DC transducer cell that is lower than the lower voltage limit set point is charged, avoid occurring putting phenomenon, to guarantee the equalization discharge of whole battery pack.
When batteries charging, System of voltage acquisition is to each cell state implementation system scanning of battery pack, main control unit will scan the aanalogvoltage input signal that obtains automatically to carry out A/D and converts digital signal to, and then the upper limit set value with monomer battery voltage signal and main control unit inner setting compares.When monomer battery voltage is higher than upper limit set value, open the corresponding matrix switch of cell by main control unit control Executive Module, and open the DC-DC transducer cell that is higher than the upper voltage limit set point is discharged, avoid occurring overcharging phenomenon, to guarantee the charge balancing of whole battery pack.
By the consistency of Effective Raise cell group of the present invention, improve flying power.
Description of drawings
Fig. 1 is the passive balanced way that has extensively adopted in the lithium battery management system;
Fig. 2 is the active equalization mode of existing employing degree of flying capacitive method;
Fig. 3 is overall circuit theory diagram of the present invention;
Fig. 4 is the composition frame chart of System of voltage acquisition among the present invention;
Fig. 5 is the composition frame chart of the buffer circuit of System of voltage acquisition among the present invention;
Fig. 6 is the composition frame chart of the difference channel of System of voltage acquisition among the present invention;
Fig. 7 is operation principle flow chart of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
The battery intelligent balanced management system that the present invention proposes forms, as shown in Figure 3, this balanced management system comprises System of voltage acquisition 33, matrix switch 34 and cell 31, also comprises energy-storage battery 36 for subsequent use, main control unit 38, Executive Module 35, DC-DC transducer 37.It is characterized in that, several cell 31 usefulness connectors 32 are together in series, and form the battery pack of a required voltage that is managed.Draw respectively a wire from the positive pole of each cell, draw wire from the negative pole of last cell, as common zero line, be connected with System of voltage acquisition 33 corresponding circuit board ports respectively; The collection Voltage-output port of System of voltage acquisition 33 is connected with the input port of main control unit 38; The output port of main control unit 38 is connected with the input port of Executive Module 35; The output port of Executive Module 35 is connected with the corresponding port that matrix switch 34 is connected with the DC-DC transducer respectively; The node switch of matrix switch 34 is connected with cell 31 respectively, and is connected with energy-storage battery 36 for subsequent use; DC-DC transducer 37 is connected with energy-storage battery 36 for subsequent use.
Implementation and the function of above-mentioned each parts of equalizer are respectively described below:
Described reserve battery is that any one can be used as the kind of electrokinetic cell in lead-acid battery, Ni-MH battery, aluminum-air battery, the lithium battery etc.
Described main control unit comprises CPU processor and peripheral circuit thereof, and peripheral circuit comprises reset circuit, clock circuit and 16MFLASH circuit; Peripheral circuit and CPU processor concentrate on the same printed wiring board, and the line on the printed wiring board between the prefabricated various piece is realized electrical connection.CPU adopts the STC12C5A60S2 single-chip microcomputer in the present embodiment.The major function of this main control unit is that the signal that the peripheral hardware circuit transmission is come is processed, and the data after processing are sent to peripheral circuit, makes peripheral circuit carry out corresponding function.
Described Executive Module is to receive the signal that main control unit sends, and carries out to the received signal drive amplification, isolation processing, and sends to matrix switch, is the actuator of main control unit.
Described DC-DC transducer comprises DC-DC conversion chip and protective circuit.The major function of this DC-DC transducer is to process carrying out the voltage of energy when shifting between battery pack and the energy-storage battery for subsequent use, to guarantee the smooth transfer of energy.
System of voltage acquisition is formed by a plurality of buffer circuits 43 and a plurality of difference channel 42 common combinations as shown in Figure 4.The number of buffer circuit 43 and difference channel 42 is identical with the number of tested cell.
Several cells are composed in series a needed battery pack mutually, each cell in the battery pack is connected with buffer circuit 43 from its positive and negative lead wires respectively, buffer circuit 43 is connected with difference channel 42 respectively again, and difference channel 42 links to each other with main control unit 41 again.
System of voltage acquisition is to gather voltage signal by the voltage acquisition line that cell in the battery pack is drawn, by the interference and insulation of buffer circuit 43 realizations to voltage signal, carry out acquisition and processing by 42 pairs of voltage pressure reduction of difference channel again, the magnitude of voltage of each cell of Real-time Obtaining, and be transferred to main control unit.
Each buffer circuit embodiment of System of voltage acquisition as shown in Figure 5, this circuit is made of two current-limiting resistances, a photoelectrical coupler TLP51-1 and two triodes 9013; Cell both positive and negative polarity input voltage links to each other with two current-limiting resistances respectively, and the voltage signal that the cell both positive and negative polarity is inputted carries out respectively current limliting; The amplifying triode corresponding with it links to each other again, and the signal after the cell both positive and negative polarity input current limliting is amplified accordingly; Then triode links to each other with photoelectrical coupler TLP51-1, and photoelectrical coupler links to each other with the gating port of main control unit, thus the acquisition state of control monomer battery voltage.
The difference channel embodiment of System of voltage acquisition as shown in Figure 6, this circuit is comprised of two current-limiting resistances, a differential operational amplifier LAN105KAP, a divider resistance; Buffer circuit links to each other with current-limiting resistance, and the signal of buffer circuit output is carried out linking to each other with difference operational amplifying circuit after the current limliting again, exports pressure difference signal after making voltage signal after the current limliting pass through the difference amplifier, and pressure difference signal is transferred to main control unit.
The matrix switch of the present embodiment refers to that structure is the ordinary tap product of ranks cross arrangement, for example adopts MT8816 type simulated matrix switch, and its characteristics are that inside comprises 128 control data latches and 8X16 analog switch array.Row address and column address by input determine corresponding latch input data, control the switch on and off in selected crosspoint.
The Executive Module 35 of the present embodiment is comprised of operational amplifier and optocoupler, adopts LM148 type low power consumpting quadri-operational amplifier, carries out signal and amplifies, and adopt TLP521 type optocoupler to isolate.
The DC-DC transducer 37 of the present embodiment is for the electric pressure converter that input voltage effectively is converted to fixed voltage.Adopt conversion chip XL4012 and XL6011 and protective circuit thereof.
The course of work of the present invention:
Cell group of the present invention is implemented effectively to be connected by effective wire harness and drive system of electric motor vehicle.Its operation principle flow process as shown in Figure 7.
When battery power discharge, System of voltage acquisition is to each cell state implementation system scanning of battery pack, main control unit will scan the aanalogvoltage input signal that obtains automatically to carry out A/D and converts digital signal to, and then the lower limit set value with monomer battery voltage signal and main control unit inner setting compares.When monomer battery voltage is lower than lower limit set value, open the corresponding matrix switch of cell by main control unit control Executive Module, and open the DC-DC transducer cell that is lower than the lower voltage limit set point is charged, avoid occurring putting phenomenon, to guarantee the equalization discharge of whole battery pack.
When batteries charging, System of voltage acquisition is to each cell state implementation system scanning of battery pack, main control unit will scan the aanalogvoltage input signal that obtains automatically to carry out A/D and converts digital signal to, and then the upper limit set value with monomer battery voltage signal and main control unit inner setting compares.When monomer battery voltage is higher than upper limit set value, open the corresponding matrix switch of cell by main control unit control Executive Module, and open the DC-DC transducer cell that is higher than the upper voltage limit set point is discharged, avoid occurring overcharging phenomenon, to guarantee the charge balancing of whole battery pack.
The above-mentioned course of work adopts the control program of conventional programming technology establishment to be stored in advance in the single-chip microcomputer of main control unit and can realize.
By the consistency between each cell in the Effective Raise battery pack of the present invention, improve flying power, effectively prolong the useful life of battery pack.
Characteristics of the present invention are: voltage acquisition carries out the collection of scan-type voltage data to each battery cell first, again the transfer of data that collects is processed rear control Executive Module 35 and DC-DC transducer to main control unit, to realize that the circulation between the cell is complementary in the cell group.Has efficient high, the advantage such as cost is low, and volume is little, and is safe and reliable.
Claims (6)
1. battery intelligent balanced management system, this balanced management system comprises System of voltage acquisition, matrix switch and cell group, also comprises energy-storage battery for subsequent use, main control unit, Executive Module, DC-DC transducer; Described energy-storage battery for subsequent use links to each other with matrix switch, DC-DC transducer respectively, and System of voltage acquisition links to each other with main control unit, matrix switch and cell group respectively; Main control unit links to each other with matrix switch by Executive Module, links to each other with energy-storage battery for subsequent use by the DC-DC transducer; Matrix switch links to each other with the cell group.
2. balanced management system as claimed in claim 1 is characterized in that, described energy-storage battery for subsequent use is a kind of product that can be used as electrokinetic cell among lead-acid battery, aluminium, zinc and air cell, Ni-MH battery, the lithium battery.
3. balanced management system as claimed in claim 1 is characterized in that, described main control unit comprises the peripheral circuit of CPU processor and this processor, and peripheral circuit comprises reset circuit, clock circuit and 16MFLASH circuit; This peripheral circuit and CPU processor concentrate on the same printed wiring board, and the line on the printed wiring board between the prefabricated various piece is realized electrical connection.
4. balanced management system as claimed in claim 1 is characterized in that, described System of voltage acquisition is formed by a plurality of buffer circuits and a plurality of difference channel common combination.The number of buffer circuit and difference channel is identical with the number that is managed cell.
5. balanced management system as claimed in claim 1 is characterized in that, described DC-DC transducer is to process carrying out the voltage of energy when shifting between battery pack and the energy-storage battery for subsequent use, to guarantee the smooth transfer of energy.
6. balanced management system as claimed in claim 1 is characterized in that, described matrix switch is to determine corresponding latch input data by the row address of input and column address, controls the switch on and off in selected crosspoint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102625205A CN103312003A (en) | 2013-06-27 | 2013-06-27 | Intelligent balancing management system for batteries |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013102625205A CN103312003A (en) | 2013-06-27 | 2013-06-27 | Intelligent balancing management system for batteries |
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| CN103312003A true CN103312003A (en) | 2013-09-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226733A (en) * | 2014-05-27 | 2016-01-06 | 重庆邮电大学 | Active-passive hybrid equalization architecture and method for battery pack |
| CN107276154A (en) * | 2017-06-19 | 2017-10-20 | 广东电网有限责任公司惠州供电局 | Adaptive single battery balancer |
| CN107808985A (en) * | 2017-11-21 | 2018-03-16 | 深圳市德兰明海科技有限公司 | The protection device and method of a kind of battery management system |
| CN108110852A (en) * | 2018-01-15 | 2018-06-01 | 清华四川能源互联网研究院 | A kind of two level energy storage control device and method |
| CN119171596A (en) * | 2024-11-25 | 2024-12-20 | 啸驰电气股份有限公司 | Intelligent power drive system and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302091A (en) * | 1999-12-27 | 2001-07-04 | 索尼公司 | Battery assembly, power device and charging and discharging method |
| CN101141012A (en) * | 2007-01-19 | 2008-03-12 | 华南理工大学 | A dynamic balance management system for distributed power battery packs |
| CN102577017A (en) * | 2009-09-16 | 2012-07-11 | 国家半导体公司 | Active cell and module balancing for batteries or other power supplies |
| JP2013005677A (en) * | 2011-06-21 | 2013-01-07 | Toyota Industries Corp | Cell balancer |
| CN102951036A (en) * | 2012-10-19 | 2013-03-06 | 鄂尔多斯市紫荆创新研究院 | Power system of 2V single lead-acid power batteries for electric vehicle |
-
2013
- 2013-06-27 CN CN2013102625205A patent/CN103312003A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302091A (en) * | 1999-12-27 | 2001-07-04 | 索尼公司 | Battery assembly, power device and charging and discharging method |
| CN101141012A (en) * | 2007-01-19 | 2008-03-12 | 华南理工大学 | A dynamic balance management system for distributed power battery packs |
| CN102577017A (en) * | 2009-09-16 | 2012-07-11 | 国家半导体公司 | Active cell and module balancing for batteries or other power supplies |
| JP2013005677A (en) * | 2011-06-21 | 2013-01-07 | Toyota Industries Corp | Cell balancer |
| CN102951036A (en) * | 2012-10-19 | 2013-03-06 | 鄂尔多斯市紫荆创新研究院 | Power system of 2V single lead-acid power batteries for electric vehicle |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226733A (en) * | 2014-05-27 | 2016-01-06 | 重庆邮电大学 | Active-passive hybrid equalization architecture and method for battery pack |
| CN105226733B (en) * | 2014-05-27 | 2019-04-05 | 重庆邮电大学 | Active-passive hybrid equalization method for battery pack |
| CN107276154A (en) * | 2017-06-19 | 2017-10-20 | 广东电网有限责任公司惠州供电局 | Adaptive single battery balancer |
| CN107276154B (en) * | 2017-06-19 | 2023-04-28 | 广东电网有限责任公司惠州供电局 | Self-adaptive storage battery monomer equalization device |
| CN107808985A (en) * | 2017-11-21 | 2018-03-16 | 深圳市德兰明海科技有限公司 | The protection device and method of a kind of battery management system |
| CN107808985B (en) * | 2017-11-21 | 2024-06-11 | 深圳市德兰明海新能源股份有限公司 | Protection device and method for battery management system |
| CN108110852A (en) * | 2018-01-15 | 2018-06-01 | 清华四川能源互联网研究院 | A kind of two level energy storage control device and method |
| CN108110852B (en) * | 2018-01-15 | 2020-07-10 | 清华四川能源互联网研究院 | A secondary energy storage control device and method |
| CN119171596A (en) * | 2024-11-25 | 2024-12-20 | 啸驰电气股份有限公司 | Intelligent power drive system and control method thereof |
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Application publication date: 20130918 |