CN105244956A - Intelligent management and monitoring system for lithium battery pack - Google Patents
Intelligent management and monitoring system for lithium battery pack Download PDFInfo
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- CN105244956A CN105244956A CN201510678257.7A CN201510678257A CN105244956A CN 105244956 A CN105244956 A CN 105244956A CN 201510678257 A CN201510678257 A CN 201510678257A CN 105244956 A CN105244956 A CN 105244956A
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Abstract
The invention discloses an intelligent management and monitoring system for a lithium battery pack. The system comprises a charge module, a data collection module, an equalization module, an electric energy calculation module and a data display module, wherein the charge module carries out automatic charging at three stages of pre-charging, constant-current charging and constant-voltage charging, and carries out a control on a charge-discharge process according to the collected data; the equalization module carries out equalizing charge on a single battery through a switching power supply, so that the energy in the battery pack is equalized and consistent; the electric energy calculation module analyzes collected state parameters, and estimates current electric energy of each battery according to an electric energy estimation method; the data collection module takes charge of collecting various state parameters of the batteries; and an image-text liquid crystal display screen is adopted by the data display module, so that the technical effects of improving the safety of the battery pack, ensuring a reliable operation of the lithium battery pack, simultaneously prolonging the service life of the battery pack and reducing the use cost are achieved.
Description
Technical field
The present invention relates to lithium battery group research field, particularly, relate to a kind of lithium battery group intelligent management supervisory control system.
Background technology
Lithium ion battery: be a kind of secondary cell (rechargeable battery), it mainly rely on lithium ion between a positive electrode and a negative electrode movement carry out work.In charge and discharge process, Li+ comes and goes between two electrodes and embeds and deintercalation: during charging, and Li+ is from positive pole deintercalation, and embed negative pole through electrolyte, negative pole is in rich lithium state; Then contrary during electric discharge.Battery generally adopts material containing elemental lithium as electrode, is the representative of modern high performance battery.
Lithium system battery is divided into lithium battery and lithium ion battery.What mobile phone and notebook computer used is all lithium ion battery, and usual people's custom is called lithium battery.
The lithium battery group of electric automobile is composed in series by more piece cell, and total voltage is generally at 12 ~ 400V.If do not carry out security monitoring and effectively management to batteries, the difference in batteries between monomer will be made in use to increase gradually, cause battery pack to occur that monomer overcharges after operation a period of time, cross put, overcurrent and battery pack ambient temperature cross high a series of fault, causes reduce the useful life of whole battery pack.Hydraulic performance decline.Even scrap time serious, blast etc.
In sum, present inventor, in the process realizing invention technical scheme in the embodiment of the present application, finds that above-mentioned technology at least exists following technical problem:
In the prior art, it is poor to there is management and monitoring in existing battery pack, causes battery pack reduction in useful life, hydraulic performance decline, the technical problem that fail safe is poor.
Summary of the invention
The invention provides a kind of lithium battery group intelligent management supervisory control system, solving existing battery pack, to there is management and monitoring poor, cause battery pack reduction in useful life, hydraulic performance decline, the technical problem that fail safe is poor, achieves the fail safe that improve battery pack, guarantees lithium battery group reliability service, extend battery pack useful life simultaneously, reduce the technique effect of use cost.
For solving the problems of the technologies described above, the embodiment of the present application provides a kind of lithium battery group intelligent management supervisory control system, and described system comprises:
Charging module, data acquisition module, balance module, electricity computing module, data disaply moudle, charging module carries out automatic charging by preliminary filling, constant current charge and constant voltage charge three phases, and controls charge and discharge process according to the data gathered; Balance module carries out equalizing charge by Switching Power Supply to single battery, makes the balancing energy in battery pack consistent; Electricity computing module is by analyzing the state parameter collected, and according to electricity estimation algorithm, estimates the current electric quantity of battery; Data acquisition module is responsible for the various state parameters gathering battery; Data disaply moudle adopts picture and text LCDs, shows each batteries voltage, charging and discharging currents, dump energy, battery temperature and charging interval.
Wherein, described battery status parameter comprises: electric current, voltage, temperature.
Wherein, described system can carry out data monitoring, warning to battery pack.
Wherein, described system selects lithium battery dedicated management chip OZ890, realizes overvoltage, under-voltage, overcurrent, short circuit, crosses high temperature and crosses the balanced and data acquisition function of low-temperature protection, the energy content of battery.
Wherein, described system selects AT89C51 system CCO1 to be controller, devises acoustooptic alarm system, carries out dynamically display comprehensively by LCD matrix liquid-crystal display screen simultaneously.
The one or more technical schemes provided in the embodiment of the present application, at least have following technique effect or advantage:
Achieve the fail safe that improve battery pack, guarantee lithium battery group reliability service, extend battery pack useful life simultaneously, reduce the technique effect of use cost.
Accompanying drawing explanation
Fig. 1 is the composition schematic diagram of lithium battery group intelligent management supervisory control system in the application.
Embodiment
The invention provides a kind of lithium battery group intelligent management supervisory control system, solving existing battery pack, to there is management and monitoring poor, cause battery pack reduction in useful life, hydraulic performance decline, the technical problem that fail safe is poor, achieves the fail safe that improve battery pack, guarantees lithium battery group reliability service, extend battery pack useful life simultaneously, reduce the technique effect of use cost.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete execution mode, technique scheme is described in detail.
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.
Embodiment 1:
Please refer to Fig. 1, this application provides a kind of lithium battery group intelligent management supervisory control system, described system comprises:
Charging module, data acquisition module, balance module, electricity computing module, data disaply moudle, charging module carries out automatic charging by preliminary filling, constant current charge and constant voltage charge three phases, and controls charge and discharge process according to the data gathered; Balance module carries out equalizing charge by Switching Power Supply to single battery, makes the balancing energy in battery pack consistent; Electricity computing module is by analyzing the state parameter collected, and according to electricity estimation algorithm, estimates the current electric quantity of battery; Data acquisition module is responsible for the various state parameters gathering battery; Data disaply moudle adopts picture and text LCDs, shows each batteries voltage, charging and discharging currents, dump energy, battery temperature and charging interval.
Wherein, in the embodiment of the present application, described battery status parameter comprises: electric current, voltage, temperature.
Wherein, in the embodiment of the present application, described system can carry out data monitoring, warning to battery pack.
Wherein, in the embodiment of the present application, described system selects lithium battery dedicated management chip OZ890, realizes overvoltage, under-voltage, overcurrent, short circuit, crosses high temperature and crosses the balanced and data acquisition function of low-temperature protection, the energy content of battery.
Wherein, in the embodiment of the present application, described system selects AT89C51 system CCO1 to be controller, devises acoustooptic alarm system, carries out dynamically display comprehensively by LCD matrix liquid-crystal display screen simultaneously.
Wherein, in the embodiment of the present application, the structure of battery intelligent management system:
Based on the lithium battery group Intelligent management module of OZ890, primarily of compositions such as charging module, data acquisition module, balance module, electricity computing module, data disaply moudles.Charging module carries out automatic charging by preliminary filling, constant current charge and constant voltage charge three phases, and controls charge and discharge process according to the data gathered; Balance module carries out equalizing charge by Switching Power Supply to single battery in due course, makes the balancing energy in battery pack consistent; Electricity computing module is by analyzing the state parameter collected, and according to electricity estimation algorithm, estimates the current electric quantity of battery; Data acquisition module is responsible for the various state parameters gathering battery, as electric current, voltage, temperature; Data disaply moudle adopts picture and text LCDs.Show each batteries voltage, charging and discharging currents, dump energy, battery temperature and charging interval.The dynamic lithium battery group management system designed herein can carry out data monitoring, warning to battery pack.Select lithium battery dedicated management chip OZ890.Realize overvoltage, under-voltage, overcurrent, short circuit, cross high temperature and cross the functions such as the balanced and data acquisition of low-temperature protection, the energy content of battery, select AT89C51 system CCO1 to be controller on this basis.Devise acoustooptic alarm system.Carry out dynamically display comprehensively by LCD matrix liquid-crystal display screen simultaneously, make the function of lithium battery group more perfect.
Battery pack intelligent management system hardware designs: the hardware configuration of supervisory control system mainly comprises OZ890 lithium battery intelligent administration module, monitoring module, display module and acousto-optic alarm module.
(1) main control MCU circuit.Main control MCU adopts AT89C51CC01 single-chip microcomputer, and it is a kind of 8 powerful 8-digit microcontrollers.Carry CAN controller and built-in 32KBFLASHROM.2KBEEPROM and 1.2KBRAM.Can control 15 CAN passages, these passages are able to programme for receiving, sending or reception buffer.Can be network node and hardware supports is provided.And inner also have other functions such as D conversion and PWM generator, can be directly used in the measurement of cell voltage in the design.
(2) communicating circuit.System uses serial line interface, shows assembled battery total voltage, each single battery voltage, charging and discharging currents, dump energy etc. by Liquid Crystal Module.XS2 is signal input part and power end socket.The signal of input is through MCU process.Be sent to LCD to show: XS3 is 232 communication ends.By US1 level conversion.Data content can show on a display screen.
(3) LCD display circuit.Wherein XS4 is the socket to display screen, and Q1 controls the backlight LED in display screen.RW regulates character contrast.
(4) sound light alarming circuit.Wherein, P03 mouth output alarm control signal.Drive F1 and DT, produce sound, light alarm signal; P02 is the online signal lamp of MCU.If can not normal connectivity.Then light flash, if normally online, then lamp Chang Liang.
The Software for Design of battery management system:
Native system software completes based on C language, whether normally first detects the information such as cell voltage, electric current, temperature, if abnormal in major cycle, report to the police and shut-off circuit, if normal, charging and discharging state judged, makes different process according to different states; Then carry out data communication, the state information of battery is passed to host computer: again carry out equilibrium treatment.Judgement system the need of equilibrium, and opens equalizing circuit specific time.Just complete the whole workflow of battery management system since then; After major cycle completes aforesaid operations, then enter and circulate next time, go round and begin again.
Technical scheme in above-mentioned the embodiment of the present application, at least has following technique effect or advantage:
Achieve the fail safe that improve battery pack, guarantee lithium battery group reliability service, extend battery pack useful life simultaneously, reduce the technique effect of use cost.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (5)
1. a lithium battery group intelligent management supervisory control system, is characterized in that, described system comprises:
Charging module, data acquisition module, balance module, electricity computing module, data disaply moudle, charging module carries out automatic charging by preliminary filling, constant current charge and constant voltage charge three phases, and controls charge and discharge process according to the data gathered; Balance module carries out equalizing charge by Switching Power Supply to single battery, makes the balancing energy in battery pack consistent; Electricity computing module is by analyzing the state parameter collected, and according to electricity estimation algorithm, estimates the current electric quantity of battery; Data acquisition module is responsible for the various state parameters gathering battery; Data disaply moudle adopts picture and text LCDs, shows each batteries voltage, charging and discharging currents, dump energy, battery temperature and charging interval.
2. lithium battery group intelligent management supervisory control system according to claim 1, it is characterized in that, described battery status parameter comprises: electric current, voltage, temperature.
3. lithium battery group intelligent management supervisory control system according to claim 1, it is characterized in that, described system can carry out data monitoring, warning to battery pack.
4. lithium battery group intelligent management supervisory control system according to claim 1; it is characterized in that; described system selects lithium battery dedicated management chip OZ890, realizes overvoltage, under-voltage, overcurrent, short circuit, crosses high temperature and crosses the balanced and data acquisition function of low-temperature protection, the energy content of battery.
5. lithium battery group intelligent management supervisory control system according to claim 1, it is characterized in that, described system selects AT89C51 system CCO1 to be controller, devises acoustooptic alarm system, carries out dynamically display comprehensively by LCD matrix liquid-crystal display screen simultaneously.
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| CN201510678257.7A CN105244956A (en) | 2015-10-20 | 2015-10-20 | Intelligent management and monitoring system for lithium battery pack |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107733046A (en) * | 2017-11-21 | 2018-02-23 | 深圳市森树强电子科技有限公司 | A kind of lithium battery intelligent charging management method and device |
| CN108561773A (en) * | 2018-05-18 | 2018-09-21 | 海丰通航科技有限公司 | Portable modularity airport lamp |
| CN109066749A (en) * | 2018-09-11 | 2018-12-21 | 缙云县曦田节能科技有限公司 | Energy Management System applied to photovoltaic energy storage system |
| CN109660005A (en) * | 2019-01-22 | 2019-04-19 | 深圳市金宏电子有限公司 | A kind of lithium battery charging system and method based on solar energy |
| CN112238787A (en) * | 2020-08-14 | 2021-01-19 | 安徽德亚电池有限公司 | Lithium battery management system |
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| US20080091363A1 (en) * | 2006-10-12 | 2008-04-17 | Gye-Jong Lim | Battery Management System (BMS) and driving method thereof |
| CN101860056A (en) * | 2010-05-24 | 2010-10-13 | 宁波高新区申特科技有限公司 | Power lithium battery pack balancing and managing system based on Map model |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107733046A (en) * | 2017-11-21 | 2018-02-23 | 深圳市森树强电子科技有限公司 | A kind of lithium battery intelligent charging management method and device |
| CN108561773A (en) * | 2018-05-18 | 2018-09-21 | 海丰通航科技有限公司 | Portable modularity airport lamp |
| CN109066749A (en) * | 2018-09-11 | 2018-12-21 | 缙云县曦田节能科技有限公司 | Energy Management System applied to photovoltaic energy storage system |
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