CN107086628A - It is a kind of that system is protected by light-coupled isolation software and hardware cooperating novel lithium battery group - Google Patents

It is a kind of that system is protected by light-coupled isolation software and hardware cooperating novel lithium battery group Download PDF

Info

Publication number
CN107086628A
CN107086628A CN201710364448.5A CN201710364448A CN107086628A CN 107086628 A CN107086628 A CN 107086628A CN 201710364448 A CN201710364448 A CN 201710364448A CN 107086628 A CN107086628 A CN 107086628A
Authority
CN
China
Prior art keywords
microcontroller
battery
module
lithium battery
detection module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710364448.5A
Other languages
Chinese (zh)
Inventor
颜宋宋
王文武
吴友爱
孙甲丽
李紫薇
陈思琪
林珊珊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Normal University
Original Assignee
Anhui Normal University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Normal University filed Critical Anhui Normal University
Priority to CN201710364448.5A priority Critical patent/CN107086628A/en
Publication of CN107086628A publication Critical patent/CN107086628A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0036Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/18Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302Overcharge protection
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00304Overcurrent protection
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00306Overdischarge protection

Abstract

System is protected by light-coupled isolation software and hardware cooperating novel lithium battery group the invention discloses one kind, including microcontroller and electric power detection module, the data terminal of the microcontroller is connected with the control port of electric power detection module, the AD collection pins of the microcontroller also electrically connect lithium battery group, the output end of the microcontroller is connected with battery privacy protection chip, the output end of the microcontroller is also connected by its internal CAN with computer, the output end of the microcontroller is also associated with human-computer interaction module, the input of the electric power detection module also electrically connect Hall current detection module, battery voltage is gathered using the technology of light-coupled isolation, while accurate acquisition battery information, ensure system worked well operation, software detection battery status is realized by the thinking of software and hardware combining, software and hardware mating protection lithium electricity group charging/discharging function.

Description

It is a kind of that system is protected by light-coupled isolation software and hardware cooperating novel lithium battery group
Technical field
It is specially that one kind passes through light-coupled isolation software and hardware cooperating the present invention relates to lithium electricity group protection systems technology field Novel lithium battery group protects system.
Background technology
In the severe change in face of global climate, pure electric automobile turns into the Main way of automobile industry future development, and The principal element of influence Development of Electric Vehicles is the lithium battery of its power source.It is safe and stable, normal in order to ensure electric automobile Operation is, it is necessary to carry out necessary control to battery and manage the performance for allowing it to keep good and extend its use longevity Life.So, it is rationally very important to electric automobile using battery.However, obtaining battery dump energy accurately and in time is The main aspect for being controlled and managing to battery.Because the number of battery dump energy is directly reflected residing for battery State, the continual mileage of electric automobile can be predicted by it, it is to avoid the super-charge super-discharge of battery, between balancing battery performance not Uniformity, so that the safe and stable operation of electric automobile is ensure that, but existing lithium electricity group protection technique, it is substantially all use The processing scheme of soft or hard separation, when so handling design simplicity but there is hardware circuit detection signal error, BMS System can not make corresponding misarrangement prompting and processing.
The content of the invention
To achieve the above object, the present invention provides following technical scheme:One kind passes through light-coupled isolation software and hardware cooperating Novel lithium battery group protects system, including microcontroller, and the power module is powered directly to microcontroller, the microcontroller Data terminal is connected with the control port of electric power detection module, and the AD collection pins of the microcontroller also electrically connect lithium Battery pack, the power end of the microcontroller electrically connect power module, output end and the special guarantor of battery of the microcontroller Shield chip is connected, and the output end of the microcontroller is also connected by its internal CAN with computer, described The output end of microcontroller is also associated with human-computer interaction module, the human-computer interaction module be internally provided with OLED liquid crystal screen and Keyboard, the input of the electric power detection module also electrically connect Hall current detection module, the electric power detection module it is defeated Go out end with LED display module to be connected.
As a kind of preferred technical scheme of the present invention, the periphery of the electric power detection module provided with voltage conversion circuit and Chip temperature detects circuit.
As a kind of preferred technical scheme of the present invention, NBCZX7-500 direct currents are provided with the Hall current detection module Hall sensor and battery discharge current detection circuit, the input connection lithium battery of the battery discharge current detection circuit Group, the output end connection direct current Hall sensor of battery discharge current detection circuit, the direct current Hall sensor it is defeated Go out the signal input part of end connection electric power detection module.
As a kind of preferred technical scheme of the present invention, the input of the microcontroller is also associated with external temperature detection Module.
Compared with prior art, the beneficial effects of the invention are as follows:Light-coupled isolation software and hardware cooperating novel lithium should be passed through Electricity group protection system, is provided with microcontroller, and microcontroller is used as System on Chip/SoC, profit using MKL26Z256VLL4 single-chip microcomputers DS2788 is coordinated to coordinate special Li battery protection IC as System on Chip/SoC and its peripheral circuit with MKL26Z256VLL4 single-chip microcomputers 7276 software and hardware combining electric quantity of lithium battery management system;Battery voltage, accurate acquisition are gathered using the technology of light-coupled isolation While battery information, it is ensured that system worked well is run, and software detection battery shape is realized by the thinking of software and hardware combining State, software and hardware mating protection lithium electricity group charging/discharging function.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention;
Fig. 2 is electric power detection module connection diagram of the present invention;
Fig. 3 is electric power detection module circuit diagram of the present invention.
In figure:1- microcontrollers;2- power modules;3- electric power detection modules;4- lithium battery groups;5- external temperatures detect mould Block;6- battery privacy protection chips;7-CAN communication modules;8- computers;9-OLED liquid crystal displays;10- human-computer interaction modules;11- Keyboard;12- voltage conversion circuits;13- chip temperatures detect circuit;14- Hall current detection modules;15- current detection circuits; 16- direct current Hall sensors;17-LED display modules.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
Embodiment:
Fig. 1 to Fig. 3 is referred to, the present invention provides a kind of technical scheme:One kind passes through light-coupled isolation software and hardware cooperating Novel lithium battery group protects system, including microcontroller 1, and the microcontroller 1 uses main control chip MKL26Z256VLL4 single-chip microcomputers As System on Chip/SoC, the power module 2 is powered directly to microcontroller 1, the data terminal and electric power detection of the microcontroller 1 The control port of module 3 is connected, and the AD collection pins inside the microcontroller 1 also electrically connect lithium battery group 4, described micro- The power end of controller 1 electrically connect power module 2, and the output end of the microcontroller 1 is connected with battery privacy protection chip 6 Connect, the output end of the microcontroller 1 is also connected by its internal CAN 7 with computer 8, the computer 8 It is connected on one-chip computer module and is used for reception system detection information and preserves information, query history information, the microcontroller 1 Output end is also associated with human-computer interaction module 10, and the human-computer interaction module 10 is internally provided with OLED liquid crystal screen 9 and keyboard 11, by controlling OLED liquid crystal screen 9 and keyboard 11 to be used for display information, input instruction, the input of the electric power detection module 3 Hall current detection module 14 is also electrically connect, the output end of the electric power detection module 3 is connected with LED display module 17.
Preferably, the periphery of the electric power detection module 3 is provided with voltage conversion circuit 12 and chip temperature detection circuit 13;Provided with NBCZX7-500 direct currents Hall sensor 16 and battery discharge current detection electricity in the Hall current detection module 14 Road 15, the input connection lithium battery group 4 of the battery discharge current detection circuit 15, the battery discharge current detects circuit 15 output end connection direct current Hall sensor 16, the output end connection electric power detection module 3 of the direct current Hall sensor 16 Signal input part;The input of the microcontroller 1 is also associated with external temperature detection module 5, the external temperature detection Module 5, which is connected on one-chip computer module, to be used for detecting external temperature.
The battery privacy protection chip 6 uses 7276 series of processes chips, when appointing inside battery privacy protection chip 6 Start when one monomer voltage is higher than preset voltage value and overcharge protection, with locking and unblock;When any monomer voltage is less than default Start Cross prevention during magnitude of voltage, with locking and unblock;Start overcurrent protection when discharge current is higher than pre-set current value, it is attached There is locking and unlock;The parameters such as real-time voltage, electric current, SOC, temperature are sent to outside accepting device;Switched by external light current Whether control battery pack has output;The system dormancy when outside connected switch disconnects;Connect charger when, no matter external controlling switch It can not discharge but can communicate in which kind of state;Read when duty history record built in system is for needing after sale etc., to understand The history service condition of battery pack.
Specifically used mode and advantage:System, bag should be protected by light-coupled isolation software and hardware cooperating novel lithium battery group Main control chip MKL26Z256VLL4 single-chip microcomputers are included as System on Chip/SoC, electric power detection module is selected in electric power detection module DS2788 chips, the periphery of DS2788 chips is provided with voltage conversion circuit and chip temperature detection circuit;Hall current detects mould Block, one-chip computer module, LED display module and power module, DS2788 electric power detection modules and the connection of Hall current detection module It is used for detecting the electricity and discharge current of lithium battery, the signal output part connection of Hall current detection module on lithium battery The input of DS2788 modules, DS2788 electric power detection modules connection one-chip computer module is used for exporting detection data to single-chip microcomputer mould Block, LED display module, which is connected to, is used for the electricity current data for showing lithium battery, power module connection management in DS2788 modules Each electrical module in system provides electric energy and supported, and support MKL26Z256VLL4 single-chip microcomputers as in System on Chip/SoC CAN communication function realize real-time collection for system charge information and warning message and the function of communication with the outside world, utilize MKL26Z256VLL4 single-chip microcomputers coordinate DS2788 to coordinate special Li battery protection IC as System on Chip/SoC and its peripheral circuit 7276 software and hardware combining electric quantity of lithium battery management system;Battery voltage, accurate acquisition are gathered using the technology of light-coupled isolation While battery information, it is ensured that system worked well is run, and software detection battery shape is realized by the thinking of software and hardware combining State, software and hardware mating protection lithium electricity group charging/discharging function.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.

Claims (5)

1. a kind of protect system by light-coupled isolation software and hardware cooperating novel lithium battery group, it is characterised in that:Including microcontroller Device (1), the power module (2) is powered directly to microcontroller (1), the data terminal and electric power detection of the microcontroller (1) The control port of module (3) is connected, and the internal AD collection pins of the microcontroller (1) also electrically connect lithium battery group (4), The power end of the microcontroller (1) electrically connect power module (2), and the output end and battery of the microcontroller (1) are special Protection chip (6) is connected, and the output end of the microcontroller (1) also passes through its internal CAN (7) and computer (8) it is connected, the output end of the microcontroller (1) is also associated with human-computer interaction module (10), the human-computer interaction module (10) be internally provided with OLED liquid crystal screen (9) and keyboard (11), the input of the electric power detection module (3) also electrically connect Hall current detection module (14), the output end of the electric power detection module (3) is connected with LED display module (17).
2. one kind according to claim 1 protects system by light-coupled isolation software and hardware cooperating novel lithium battery group, its It is characterised by:The periphery of the electric power detection module (3) is provided with voltage conversion circuit (12) and chip temperature detection circuit (13).
3. one kind according to claim 1 protects system by light-coupled isolation software and hardware cooperating novel lithium battery group, its It is characterised by:NBCZX7-500 direct currents Hall sensor (16) and battery discharge are provided with the Hall current detection module (14) Current detection circuit (15), the input connection lithium battery group (4) of the battery discharge current detection circuit (15), the battery Discharge current testing circuit (15) output end connection direct current Hall sensor (16), the direct current Hall sensor (16) it is defeated Go out the signal input part of end connection electric power detection module (3).
4. one kind according to claim 1 protects system by light-coupled isolation software and hardware cooperating novel lithium battery group, its It is characterised by:The input of the microcontroller (1) is also associated with external temperature detection module (5).
5. one kind according to claim 1 protects system by light-coupled isolation software and hardware cooperating novel lithium battery group, its It is characterised by:The microcontroller (1) is used as System on Chip/SoC using main control chip MKL26Z256VLL4 single-chip microcomputers.
CN201710364448.5A 2017-05-22 2017-05-22 It is a kind of that system is protected by light-coupled isolation software and hardware cooperating novel lithium battery group Pending CN107086628A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710364448.5A CN107086628A (en) 2017-05-22 2017-05-22 It is a kind of that system is protected by light-coupled isolation software and hardware cooperating novel lithium battery group

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710364448.5A CN107086628A (en) 2017-05-22 2017-05-22 It is a kind of that system is protected by light-coupled isolation software and hardware cooperating novel lithium battery group

Publications (1)

Publication Number Publication Date
CN107086628A true CN107086628A (en) 2017-08-22

Family

ID=59608445

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710364448.5A Pending CN107086628A (en) 2017-05-22 2017-05-22 It is a kind of that system is protected by light-coupled isolation software and hardware cooperating novel lithium battery group

Country Status (1)

Country Link
CN (1) CN107086628A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021008357A1 (en) * 2019-07-16 2021-01-21 深圳市菱奇半导体有限公司 Battery protection controller and battery charging and discharging protection circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021008357A1 (en) * 2019-07-16 2021-01-21 深圳市菱奇半导体有限公司 Battery protection controller and battery charging and discharging protection circuit

Similar Documents

Publication Publication Date Title
CN102653263B (en) Electric automobile power battery management system and method
CN203157756U (en) Lithium battery pack monitoring and control system for electric automobile
CN102315492A (en) Power battery pack maintenance device and working method thereof
CN202917603U (en) Power battery module
CN102375125B (en) Intelligent electromobile battery detector
CN104659866A (en) Rechargeable battery temperature detection method, power management device and electronic system
CN106394300A (en) Power management system
CN202260564U (en) Electromobile battery management system for measuring single voltage of battery group on basis of switching
CN103171451B (en) Battery management system based on co-processor and solid-state relay
CN206908325U (en) It is a kind of that system is protected by light-coupled isolation software and hardware cooperating novel lithium battery group
CN107086628A (en) It is a kind of that system is protected by light-coupled isolation software and hardware cooperating novel lithium battery group
CN109358548A (en) A kind of charging method of automotive diagnostic system, vehicle diagnosis and automotive diagnostic unit
CN103762623B (en) A kind of lithium battery management system integrated circuit
CN205453253U (en) Electric automobile power supply management device
CN101123364B (en) Over charging/discharging protection circuit for charging/discharging system of multiple serial battery
CN209626366U (en) A kind of battery management system
CN205123365U (en) Electric vehicle charging pile
CN201608252U (en) 48-V lithium iron phosphate battery management device
CN203126558U (en) Battery management system based on coprocessor and solid-state relay
CN203536994U (en) Vehicle-mounted uninterruptible power supply storage battery control and management device
CN206834282U (en) A kind of cell management system of electric automobile
CN202353256U (en) Electric vehicle charger
CN206790138U (en) A kind of portable power source
CN202838014U (en) Integrated testing device of power battery management system
CN107284283A (en) BMS devices for low-speed electronic car

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination