CN104134824A - Lithium battery protection recorder with communication interface and control method thereof - Google Patents
Lithium battery protection recorder with communication interface and control method thereof Download PDFInfo
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- CN104134824A CN104134824A CN201410357540.5A CN201410357540A CN104134824A CN 104134824 A CN104134824 A CN 104134824A CN 201410357540 A CN201410357540 A CN 201410357540A CN 104134824 A CN104134824 A CN 104134824A
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- 238000004891 communication Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 17
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title abstract description 16
- 229910052744 lithium Inorganic materials 0.000 title abstract description 16
- 229910001416 lithium ion Inorganic materials 0.000 claims description 48
- 230000005059 dormancy Effects 0.000 claims description 20
- 238000005070 sampling Methods 0.000 claims description 18
- 238000013500 data storage Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 5
- 230000010354 integration Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 4
- 238000007726 management method Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
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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
- H01M10/4285—Testing apparatus
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00038—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors
- H02J7/00041—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors in response to measured battery parameters, e.g. voltage, current or temperature profile
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
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- H02J7/0026—
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- H02J2007/0067—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a lithium battery protection recorder with a communication interface and control method thereof. The lithium battery protection recorder comprises a communication interface circuit, wherein the communication interface circuit is connected with software of an upper computer, all events generated in the lithium battery protection recorder is generated into files, a microprocessor serves as a host computer, another microprocessor serves as a slave computer, voltages between the host computer and the slave computer are exchanged through SPI communication during interruption, running data is balanced, voltage and temperature data acquired by the slave computer are sent to the host computer, the host computer also send a battery state subjected to comprehensive processing and balanced information to the slave computer, and communication between the host computer and a peripheral device is also carried out in an interruption function. Through the lithium battery protection recorder with the communication interface, more accurate capacity calculation is and more flexible balance control are achieved, battery cell compatibility is good, the capacity of a lithium battery pack can be fully utilized, the service life of the battery pack can be effectively prolonged during long-term usage, and fault generation is reduced.
Description
Technical field
The present invention relates to lithium battery field, relate in particular to a kind of li-ion cell protection recorder and control method thereof with communication interface.
Background technology
The use of lead-acid battery has had the history of decades, by the weak point of lead-acid battery, also more comes more to give prominence in a large number, as: the problem such as seriously polluted, useful life is short, cycle-index is few, volume weight is large.And lithium battery can make up these deficiencies, in recent years along with the technical matters of lithium battery is constantly improved and country encourages the exploitation of new forms of energy, lithium ion battery starts to be applied to various industries for people know and start batch gradually, as: battery of electric bicycle, electric automobile, digital product.It is exactly that elemental lithium is a kind of very active element that but lithium battery also has inborn deficiency, very unstable.If lithium battery short circuit, cross to put, to overcharge and all can affect the safety of battery and useful life, so that the effect of li-ion cell protection management system just seems is particularly important.
The technical scheme of current lithium battery protection board; all to coordinate peripheral components and parts to design based on a battery management chip; as: the standard chips of the producers such as TI, Seiko, Ricoh; itself has all solidified basic defencive function these chips; user can not configure the magnitude of voltage that overvoltage protection recovers, and the magnitude of voltage that under-voltage protection recovers discharges and recharges the temperature spot of high temperature protection and recovery; discharge and recharge the current value of over-current and-load and short circuit, these follow the relevant parameter of lithium battery dormancy time delay etc.All users cannot revise the function of chip, very inconvenient.
Summary of the invention
The invention provides a kind of li-ion cell protection recorder and control method thereof with communication interface, the present invention can effectively improve the useful life of battery pack, reduces fault and produces, and uses digital core, described below:
A li-ion cell protection recorder with communication interface, comprising: two microprocessors, and a microprocessor is as main frame, and another microprocessor is as slave;
Described main frame is electrically connected to current detection circuit, the first battery equalizing circuit, the first temperature sampling circuit and MOS drive circuit, and described the first battery equalizing circuit is given described main frame by the voltage transmission of every batteries; Described current detection circuit is given described main frame by the current delivery of every batteries; Described the first temperature sampling circuit is transferred to described main frame by the temperature of every batteries;
Described from mechatronics the second battery equalizing circuit and the second temperature sampling circuit, the second battery equalizing circuit is given described slave by the voltage transmission of every batteries; Described the second temperature sampling circuit is transferred to described slave by the temperature of every batteries;
Described li-ion cell protection recorder also comprises: communication interface circuit, described communication interface circuit is connected with upper computer software, and all events that occur on described li-ion cell protection recorder are generated to document.
Described li-ion cell protection recorder also comprises: MOS drive circuit,
Described MOS drive circuit comprises: charging MOS circuit and electric discharge MOS circuit, wherein,
Described charging MOS circuit is controlled the Push And Release of charging,
The Push And Release of described electric discharge MOS circuit controlled discharge.
Described li-ion cell protection recorder also comprises: dormancy awakening circuit, described dormancy awakening circuit is electrically connected to described main frame.
Described li-ion cell protection recorder also comprises: clock module, described clock module is electrically connected to described main frame.
Described li-ion cell protection recorder also comprises: external data storage module, described external data storage module is electrically connected to described main frame.
Described communication interface circuit adopts I
2four kinds of communication modes of C bus, serial ports, LIN bus and SPI interface.
Between described main frame and described slave, adopt SPI interface to carry out Data Integration;
Between a plurality of described li-ion cell protection recorders, adopt SPI interface to carry out a plurality of cascaded communication;
Described main frame passes through I
2c bus, serial ports or LIN bus provide electric weight, the current status information of battery for ancillary equipment;
Described main frame passes through I
2c bus, serial ports or LIN bus and host computer communicate.
For a control method for the li-ion cell protection recorder with communication interface, described method comprises:
1, the conservation treatment of voltage and temperature:
Gather voltage and the temperature of the responsible battery strings of main frame, and accept battery strings voltage and the temperature sent by slave;
During charging, temperature surpasses 50 ℃, and charging MOS circuit turn-offs charge switch, and during electric discharge, temperature surpasses 70 ℃, and electric discharge MOS circuit turn-offs discharge switch; If under-voltage, by electric discharge MOS circuit, turn-off discharge switch; If superpressure, turn-offs charge switch by charging MOS circuit;
2, the conservation treatment of electric current;
Main frame, according to voltage and battery status, carries out equilibrium treatment and sends balanced order to slave, gathers electric current, enters current protection and processes;
If overload, overcurrent, closes charge and discharge switch according to charging and discharging state;
3, the conservation treatment of electric weight;
According to electric current and time, calculate current electric quantity, finally the state information of needs storage is stored in to external data storage module, the main frame judgement that gets the hang of, if have load or charging, enter circulation next time, if there is no load or charging, main frame sends dormancy instruction and enters dormancy low-power consumption mode to slave.
The beneficial effect of technical scheme provided by the invention is: can be so that calculation of capacity is more accurate by this li-ion cell protection recorder with communication interface; balanced control is more flexible; the advantages such as battery core is compatible better; use digital control core; built-in multiple effective lithium battery management algorithm can be fully used the capacity of lithium battery group; in the useful life that can effectively improve battery pack during long-term use, reduce fault and produce.
Accompanying drawing explanation
Fig. 1 is this scheme of installation with the li-ion cell protection recorder of communication interface;
Fig. 2 is this structural representation with the li-ion cell protection recorder of communication interface;
Fig. 3 is this circuit connection diagram with the li-ion cell protection recorder of communication interface;
Fig. 4 is this flow chart with the control method of the li-ion cell protection recorder of communication interface.
In accompanying drawing, the list of parts of each label representative is as follows:
U1: microprocessor; U2: voltage balance circuit
U3: temperature sampling circuit; U4: current detection circuit;
U5: communication interface circuit; U6:MOS drive circuit;
U7: dormancy awakening circuit; U8: clock module;
U9: external data storage module; U11: main frame;
U12: slave; U21: the first string is to the 5th string battery equalizing circuit;
U22: the 6th string is to the tenth string battery equalizing circuit; U31: the first temperature sampling circuit;
U32: the second temperature sampling circuit; U61: charging MOS circuit;
U62: electric discharge MOS circuit.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below embodiment of the present invention is described further in detail.
A kind of li-ion cell protection recorder with communication interface, referring to Fig. 1, Fig. 2 and Fig. 3, this li-ion cell protection recorder comprises: two microprocessor U1, (the first string is to the 5th string battery equalizing circuit U21 (the first voltage balance circuit) for two voltage balance circuit U2, the 6th string is to the tenth string battery equalizing circuit U22 (second voltage equalizing circuit), wherein, the string of the battery pack in voltage balance circuit is several to be determined according to the needs in practical application, the embodiment of the present invention is to take five strings to describe as example), 2 temperature sampling circuit U3 (the first temperature sampling circuit U31, the second temperature sampling circuit U32), current detection circuit U4, communication interface circuit U5 and MOS drive circuit U6.Communication interface circuit U5 is connected with upper computer software, and all events that occur on li-ion cell protection recorder are generated to document.A microprocessor U1 is as main frame U11, and another microprocessor U1 is as slave U12.
Wherein, main frame U11 is electrically connected to current detection circuit U4, the first string to the 5th string battery equalizing circuit U21, the first temperature sampling circuit U31 and MOS drive circuit U6, the first string to the 5th string battery equalizing circuit U21 by the voltage transmission of every batteries in the first string to the five string battery pack to main frame U11; Current detection circuit U4 by the current delivery of every batteries in the first string to the five string battery pack to main frame U11; The first temperature sampling circuit U31 is transferred to main frame U11 by the temperature of every batteries in the first string to the five string battery pack.Main frame U11 carries out comprehensive analysis according to the characteristic of the voltage, electric current, temperature and the battery that measure and obtains the state of every batteries in the first string to the five string battery pack and control each circuit and move accordingly.
Wherein, slave U12 is electrically connected to the 6th string to the tenth string battery equalizing circuit U22 and the second temperature sampling circuit U32, the 6th string to the tenth string battery equalizing circuit U22 by the 6th string to the voltage transmission of every batteries in the tenth string battery pack to slave U12; The second temperature sampling circuit U32 is transferred to slave U12 by the 6th string to the temperature of every batteries in the tenth string battery pack.
MOS drive circuit U6 comprises: charging MOS circuit U 61 and electric discharge MOS circuit U 62, charging MOS circuit U 61 is controlled the Push And Release of charging, the Push And Release of electric discharge MOS circuit U 62 controlled discharges.
Wherein, the model of microprocessor U1 is SH79F329.
Referring to Fig. 3; this li-ion cell protection recorder also comprises: dormancy awakening circuit U 7, and dormancy awakening circuit U 7 is electrically connected to main frame U11, when non-loaded and while not charging; this dormancy awakening circuit U 7 enters dormancy operating state by whole li-ion cell protection recorder, to ensure the low-power consumption below 40uA.When adding load or charging, dormancy awakening circuit U 7 will be waken whole li-ion cell protection recorder up and enter normal operating conditions.
Referring to Fig. 3, this li-ion cell protection recorder also comprises: clock module U8, and clock module U8 is electrically connected to main frame U11, and this clock module U8 provide current correct time to li-ion cell protection recorder.
Referring to Fig. 3; this li-ion cell protection recorder also comprises: external data storage module U9; external data storage module U9 is electrically connected to main frame U11; this external data storage module U9 can by the running statuses such as the short circuit of generation, overcurrent, overload and when corresponding interocclusal record store so that external equipment or computer read analysis.
Wherein, communication interface circuit U5 adopts I
2four kinds of communication modes of C bus, serial ports, LIN bus and SPI interface.
1) between main frame U11 and slave U12, adopt SPI interface to carry out Data Integration.
2) when battery pack series winding quantity is many, between li-ion cell protection recorder and li-ion cell protection recorder, adopt SPI interface to carry out a plurality of cascaded communication.
3) main frame U11 with the communicating by letter of ancillary equipment: main frame U11 passes through I
2c bus, serial ports or LIN bus provide the state information such as electric weight, electric current of battery for ancillary equipment.
4) communicating by letter of main frame U11 and host computer: main frame U11 passes through I
2c bus, serial ports or LIN bus and host computer communicate, and host computer can read the current state information of battery, and historic state information can be carried out initiation parameter setting to baffle.
This li-ion cell protection recorder is all protected every batteries, and every batteries voltage all can not surpass charging deboost, and when certain batteries voltage reaches after charging deboost, charging will stop, and battery pack can not be full of electricity.Voltage balance circuit U2 can carry out equilibrium by the higher battery of voltage, and every crosstalk of battery pack is pressed in an intimate equal state, has prevented from being full of the generation of electricity condition, has improved battery capacity.
With a control method for the li-ion cell protection recorder of communication interface, referring to Fig. 4, this li-ion cell protection recorder can arrange multi-disc microprocessor U1 as required, need to distinguish master slave relation.After program powers on or resets, program can be posted device according to reset mode, and resolution is electrification reset, while still moving, resets.Electrification reset needs initiating hardware and data, during operation, resets and only needs checking data, checks reset mode, and reset mode is recorded to external memory storage as running log.After reset processing completes, program enters mainframe program or slave program according to the hardware address of microprocessor U1.
Main frame U11 and slave U12 carry out the SPI exchange voltage of communicating by letter, the balanced runtime data that waits in interruption.Slave U12 can pass to main frame U11 by gathered voltage, temperature data, and main frame U11 also can be by the battery status after integrated treatment, and equalization information passes to slave U12.It is also to carry out in interrupt function that main frame U11 communicates by letter with ancillary equipment.
One, the conservation treatment of voltage and temperature
Program enters after main frame U11 program, the battery strings voltage and the temperature that first gather voltage and the temperature of the battery strings that main frame U11 is responsible and accept to be sent by slave U12.After comprehensive, enter voltage and state of temperature conservation treatment, if overtemperature, main frame U11 turn-offs charging and discharging switch by MOS drive circuit U6 and prevents that battery from meeting accident.If under-voltage (detect pre-charge pressure <2.5V, equilibrium is opened automatically), turn-offs discharge switch by electric discharge MOS circuit U 62 and prevented from putting; If superpressure, turn-offs charge switch by charging MOS circuit U 61 and prevents overvoltage.
That is, during charging, temperature surpasses 50 ℃, and charging MOS circuit turn-offs charge switch, and during electric discharge, temperature surpasses 70 ℃, and electric discharge MOS circuit turn-offs discharge switch.
Slave U12 enters after slave program, first gather slave U12 voltage and the temperature of responsible battery strings, after having gathered, be transferred to main frame U11.Then the equalization information of sending according to main frame U11 is (by gathering voltage difference, divide Three Estate, during 0～20mV, do not deal with, 1 grade of the balanced grade of 20mV～100mV, 2 grades of the balanced grades of 100mV～200mV, are greater than 3 grades of the balanced grades of 200mV) battery is carried out to equilibrium.Detect button, if there is button to press, the electric weight main frame U11 being sent is exported on indicator light.Whether the dormancy confirmation command of then sending according to main frame U11 needs to enter dormancy, if not dormancy entered next circulation after feeding house dog.Two, the conservation treatment of electric current
After voltage and temperature protection are finished dealing with, main frame U11, according to voltage and battery status, carries out equilibrium treatment and sends balanced order to slave U12.Then gather electric current; after collection completes; entering current protection processes; as find overload (stopping equilibrium when 2A or discharging current surpass 5A when charging current surpasses); the phenomenons such as overcurrent are closed charge and discharge switch according to charging and discharging state; short-circuit protection is by hard-wired, has guaranteed the speed of response.
Three, the conservation treatment of electric weight
Current protection enters electric weight statistical disposition after finishing dealing with, electric weight is the current integration method adopting, and according to electric current and time, calculates current electric quantity.Finally need the state information of storage to be stored in external data storage module U9 this circulation, during storage, present clock can be stored in the lump.The last main frame U11 judgement that gets the hang of, if having load or charging, enters circulation next time, as if not main frame U11 give slave U12 transmission dormancy instruction and enter dormancy.When again having load or carrying out charging procedure, will be waken up continuation execution.Program be finally to feed dog, each circulation needs to feed dog once, during program fleet, can automatically reset.
Above-mentioned flow chart has been shown software overall architecture, has listed in detail the idiographic flow that software is carried out, and reasonably software flow and strict test have guaranteed the stability of program.Software is distinguished main frame U11 and slave U12 according to address in program, makes mainframe program and a set of program of slave program sharing, need not distinguish main frame U11 and slave U12 in production, convenient production.Program has realized house dog, in appropriate position, feeds dog, the program that guaranteed reliability service in strong interference environment.In data transmission procedure, use data and verification mode to carry out the check of data, guaranteed the accuracy of transfer of data.
The embodiment of the present invention to the model of each device except do specified otherwise, the model of other devices does not limit, as long as can complete the device of above-mentioned functions, all can.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. with a li-ion cell protection recorder for communication interface, comprising: two microprocessors, it is characterized in that, a microprocessor is as main frame, and another microprocessor is as slave;
Described main frame is electrically connected to current detection circuit, the first battery equalizing circuit, the first temperature sampling circuit and MOS drive circuit, and described the first battery equalizing circuit is given described main frame by the voltage transmission of every batteries; Described current detection circuit is given described main frame by the current delivery of every batteries; Described the first temperature sampling circuit is transferred to described main frame by the temperature of every batteries;
Described from mechatronics the second battery equalizing circuit and the second temperature sampling circuit, the second battery equalizing circuit is given described slave by the voltage transmission of every batteries; Described the second temperature sampling circuit is transferred to described slave by the temperature of every batteries;
Described li-ion cell protection recorder also comprises: communication interface circuit, described communication interface circuit is connected with upper computer software, and all events that occur on described li-ion cell protection recorder are generated to document.
2. a kind of li-ion cell protection recorder with communication interface according to claim 1, is characterized in that, described li-ion cell protection recorder also comprises: MOS drive circuit,
Described MOS drive circuit comprises: charging MOS circuit and electric discharge MOS circuit, wherein,
Described charging MOS circuit is controlled the Push And Release of charging,
The Push And Release of described electric discharge MOS circuit controlled discharge.
3. a kind of li-ion cell protection recorder with communication interface according to claim 1, is characterized in that, described li-ion cell protection recorder also comprises: dormancy awakening circuit, described dormancy awakening circuit is electrically connected to described main frame.
4. a kind of li-ion cell protection recorder with communication interface according to claim 1, is characterized in that, described li-ion cell protection recorder also comprises: clock module, described clock module is electrically connected to described main frame.
5. a kind of li-ion cell protection recorder with communication interface according to claim 1, is characterized in that, described li-ion cell protection recorder also comprises: external data storage module, described external data storage module is electrically connected to described main frame.
6. a kind of li-ion cell protection recorder with communication interface according to claim 1, is characterized in that, described communication interface circuit adopts I
2four kinds of communication modes of C bus, serial ports, LIN bus and SPI interface.
7. a kind of li-ion cell protection recorder with communication interface according to claim 6, is characterized in that,
Between described main frame and described slave, adopt SPI interface to carry out Data Integration;
Between a plurality of described li-ion cell protection recorders, adopt SPI interface to carry out a plurality of cascaded communication;
Described main frame passes through I
2c bus, serial ports or LIN bus provide electric weight, the current status information of battery for ancillary equipment;
Described main frame passes through I
2c bus, serial ports or LIN bus and host computer communicate.
8. for a control method for the li-ion cell protection recorder with communication interface described in the arbitrary claim of claim 1-7, it is characterized in that, described method comprises:
1, the conservation treatment of voltage and temperature:
Gather voltage and the temperature of the responsible battery strings of main frame, and accept battery strings voltage and the temperature sent by slave;
During charging, temperature surpasses 50 ℃, and charging MOS circuit turn-offs charge switch, and during electric discharge, temperature surpasses 70 ℃, and electric discharge MOS circuit turn-offs discharge switch;
If under-voltage, by electric discharge MOS circuit, turn-off discharge switch; If superpressure, turn-offs charge switch by charging MOS circuit;
2, the conservation treatment of electric current;
Main frame, according to voltage and battery status, carries out equilibrium treatment and sends balanced order to slave, gathers electric current, enters current protection and processes;
If overload, overcurrent, closes charge and discharge switch according to charging and discharging state;
3, the conservation treatment of electric weight;
According to electric current and time, calculate current electric quantity, finally the state information of needs storage is stored in to external data storage module, the main frame judgement that gets the hang of, if have load or charging, enter circulation next time, if there is no load or charging, main frame sends dormancy instruction and enters dormancy low-power consumption mode to slave.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617613A (en) * | 2015-01-13 | 2015-05-13 | 深圳拓邦股份有限公司 | Charging/ discharging protection plate of lithium battery pack and lithium battery pack protection system |
| CN106848454A (en) * | 2017-03-20 | 2017-06-13 | 东莞博力威电池有限公司 | A kind of management method of same mouth double cell |
| CN107742916A (en) * | 2017-11-30 | 2018-02-27 | 深圳市科卫泰实业发展有限公司 | A kind of universal lithium battery group protection circuit and universal lithium battery group |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202142877U (en) * | 2011-05-27 | 2012-02-08 | 南昌大学 | Multi-CAN battery pack management apparatus |
| CN103401224A (en) * | 2013-08-27 | 2013-11-20 | 武汉大学苏州研究院 | Multi-lithium-battery protection system |
-
2014
- 2014-07-24 CN CN201410357540.5A patent/CN104134824A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202142877U (en) * | 2011-05-27 | 2012-02-08 | 南昌大学 | Multi-CAN battery pack management apparatus |
| CN103401224A (en) * | 2013-08-27 | 2013-11-20 | 武汉大学苏州研究院 | Multi-lithium-battery protection system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617613A (en) * | 2015-01-13 | 2015-05-13 | 深圳拓邦股份有限公司 | Charging/ discharging protection plate of lithium battery pack and lithium battery pack protection system |
| CN106848454A (en) * | 2017-03-20 | 2017-06-13 | 东莞博力威电池有限公司 | A kind of management method of same mouth double cell |
| CN107742916A (en) * | 2017-11-30 | 2018-02-27 | 深圳市科卫泰实业发展有限公司 | A kind of universal lithium battery group protection circuit and universal lithium battery group |
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