CN108327553A - A kind of power battery management system for electric vehicle - Google Patents
A kind of power battery management system for electric vehicle Download PDFInfo
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- CN108327553A CN108327553A CN201810082140.6A CN201810082140A CN108327553A CN 108327553 A CN108327553 A CN 108327553A CN 201810082140 A CN201810082140 A CN 201810082140A CN 108327553 A CN108327553 A CN 108327553A
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- 238000004891 communication Methods 0.000 claims abstract description 11
- 239000000779 smoke Substances 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000011161 development Methods 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound 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[Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001737 promoting Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The invention discloses a kind of power battery management systems for electric vehicle, including power battery, power battery includes multiple batteries being connected in series with, and further includes smoke sensing module, voltage acquisition module, spi bus interface module, current acquisition module, A/D converter, temperature collecting module, controller, RS232 communication modules, CAN transceiver modules, PC machine, electric vehicle controller, display module, memory module and alarm module.The present invention can the fire caused by battery thermal runaway be monitored and early warning, and then improve the safety of the electric vehicle using battery management system；The hardware configuration of the present invention is simple, transmission speed is fast, maintenance efficiency is high, reduces cost, reliability and safety height.
Description
Technical field
The present invention relates to battery technology fields, especially a kind of power battery management system for electric vehicle.
Background technology
Energy crisis and environmental pollution already become two hang-ups for influencing social development, and countries in the world today is all being endeavoured
In this two hang-up of solution.Under the background that the people of other countries constantly appeal " low-carbon life ", new energy starts in occupation of more
Carry out more consequence, a part of the lithium battery as new energy has obtained unprecedented development.Especially electric vehicle in recent years
Development, more push the application of lithium battery to a new climax.Government and enterprise continue to increase the throwing to ev industry
Enter, the highly desirable independent research and development capacity for promoting China's electric vehicle, and battery management system is exactly the key for restricting its development
Factor.
Due to the limitation of power and voltage, lithium battery is required for being used in series in most of application scenarios, however lithium battery
Difference on capacity, internal resistance, self-discharge rate easily causes the difference of capacity between battery, and because " wooden pail effect " is deposited
The single battery of minimum capacity will be depended in the available capacity of, entire battery pack.In addition to this, it is ensured that lithium battery is using
The similarly great challenge of safety in the process.Therefore, it is that battery pack is equipped with battery management system to ensure that battery pack is efficient, pacifies
Full use just becomes most important.
Battery management system is generally responsible for the calculating of battery in battery pack electricity, battery protection, the electric quantity balancing between battery
Signal communication etc. inside and outside control and battery management system.In the prior art, the product for generally using battery, all needs
Battery management system arrange in pairs or groups to control.
Since battery is in the fabrication process it is difficult to ensure that have complete homogeneity, meeting between each concatenated battery unit
There are the differences of charge or discharge characteristic.Therefore, it when using the battery pack of series-connected cell unit, there is a problem in that：
When charging, in same battery pack, even if certain battery units are overcharged, remain on that there are certain battery units to have not yet been reached
Saturation；When or discharging again, in same battery pack, some battery units are still not fully discharged, but still some battery units are excessive
Electric discharge.In addition, if battery unit is excessively discharged/charges for a long time, it is in the material for constituting battery unit it is possible that aobvious
Write deterioration so that one of the reason of characteristic of battery unit becomes different, and this deterioration is difference between aggravating battery unit.
In today of energy crisis getting worse, new energy industry is grown rapidly, and the quantity of electric vehicle is more and more.Electricity
Electrical automobile usually manages the power battery in battery case by battery management system and powers for electric vehicle.However, existing battery
Management system and battery case do not have fire detection and warning function, to can not be battery thermal runaway when caused by fire thing
Therefore effectively detection and early warning are carried out, to reduce the safety of electric vehicle.
Invention content
It is provided the technical problem to be solved by the present invention is to overcome the deficiencies in the prior art a kind of for electric vehicle
Power battery management system, the present invention can the fire caused by battery thermal runaway be monitored and early warning, and then improve application
The safety of the electric vehicle of battery management system.
The present invention uses following technical scheme to solve above-mentioned technical problem：
According to a kind of power battery management system for electric vehicle proposed by the present invention, including power battery, power battery
Further include that smoke sensing module, voltage acquisition module, spi bus interface module, electric current are adopted including multiple batteries being connected in series with
Collect module, A/D converter, temperature collecting module, controller, RS232 communication modules, CAN transceiver modules, PC machine, electric vehicle
Controller, display module, memory module and alarm module；Wherein,
Voltage acquisition module, for the total voltage signal of the voltage signal for the single battery measured, power battery is total through SPI
Line Interface Module is exported to controller；
Current acquisition module, for exporting the current signal for the power battery measured to A/D converter；
A/D converter, for by current signal after analog-to-digital conversion output current digital signal to controller；
Temperature collecting module, for exporting the temperature signal measured to controller；
Smoke sensing module, the concentration for detecting smog in power battery, and by the concentration value of the smog detected export to
Controller；
Controller, for receiving voltage signal, current digital signal, temperature signal and smog concentration value analyze
After processing, by treated, data are stored in memory module；Data that treated, which are exported to display module, to be shown；Work as temperature
When degree signal is more than the concentration value of preset temperature threshold or smog more than preset smog threshold value, output alarm signal to report
Alert module alarm；
The communication of controller and electric vehicle controller is carried out by CAN transceiver modules, and the data between controller and PC machine are received
Hair is realized by RS232 communication modules.
Scheme, electric current are advanced optimized as a kind of power battery management system for electric vehicle of the present invention
Acquisition module includes LM358 chips and resistance；Wherein, one end of the positive input terminal of LM358 chips and resistance connect, resistance it is another
One end is connected to ground, and the negative input end of LM358 chips is connect with the output end of LM358 chips, the power end of LM358 chips with+
12V power supplys connect, and the ground terminal of LM358 chips is connected to ground.
Scheme is advanced optimized as a kind of power battery management system for electric vehicle of the present invention, is controlled
Device is microcontroller.
Scheme, monolithic are advanced optimized as a kind of power battery management system for electric vehicle of the present invention
Machine is AT89C51 microcontrollers.
Scheme, battery are advanced optimized as a kind of power battery management system for electric vehicle of the present invention
Number be 1-12.
The present invention has the following technical effects using above technical scheme is compared with the prior art：
（1）The present invention can the fire caused by battery thermal runaway be monitored and early warning, and then improve using battery management system
The safety of the electric vehicle of system；
（2）The hardware configuration of the present invention is simple, transmission speed is fast, maintenance efficiency is high, reduces cost, reliability and safety height；
（3）The present invention considers that working environment is severe in electric vehicle, and gathered data is all made of individual measuring unit, and all
Measuring unit greatly reduces interference of the environment to each sample point, improves measurement accuracy close proximity to the source of measurement；This system exists
Reliably working under strong electromagnetic interference environment.
Description of the drawings
Fig. 1 is the schematic diagram of the present invention.
Specific implementation mode
Technical scheme of the present invention is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of power battery management system for electric vehicle, including power battery, power battery include more
A battery being connected in series with further includes smoke sensing module, voltage acquisition module, spi bus interface module, current acquisition mould
Block, A/D converter, temperature collecting module, controller, RS232 communication modules, CAN transceiver modules, PC machine, Control of Electric Vehicles
Device, display module, memory module and alarm module；Wherein,
Voltage acquisition module, for the total voltage signal of the voltage signal for the single battery measured, power battery is total through SPI
Line Interface Module is exported to controller；
Current acquisition module, for exporting the current signal for the power battery measured to A/D converter；
A/D converter, for by current signal after analog-to-digital conversion output current digital signal to controller；
Temperature collecting module, for exporting the temperature signal measured to controller；
Smoke sensing module, the concentration for detecting smog in power battery, and by the concentration value of the smog detected export to
Controller；
Controller, for receiving voltage signal, current digital signal, temperature signal and smog concentration value analyze
After processing, by treated, data are stored in memory module；Data that treated, which are exported to display module, to be shown；Work as temperature
When degree signal is more than the concentration value of preset temperature threshold or smog more than preset smog threshold value, output alarm signal to report
Alert module alarm；
The communication of controller and electric vehicle controller is carried out by CAN transceiver modules, and the data between controller and PC machine are received
Hair is realized by RS232 communication modules.
Current acquisition module includes LM358 chips and resistance；Wherein, one end of the positive input terminal of LM358 chips and resistance
Connection, the other end of resistance are connected to ground, and the negative input end of LM358 chips is connect with the output end of LM358 chips, LM358 cores
The power end of piece is connect with+12V power supplys, and the ground terminal of LM358 chips is connected to ground.
Controller is microcontroller, and microcontroller can be AT89C51 microcontrollers.The number of battery can be 1-12.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, several simple deductions or replacement can also be made, all shall be regarded as belonging to the present invention's
Protection domain.
Claims (5)
1. a kind of power battery management system for electric vehicle, including power battery, power battery includes that multiple series connection connect
The battery connect, which is characterized in that further include smoke sensing module, voltage acquisition module, spi bus interface module, current acquisition
Module, A/D converter, temperature collecting module, controller, RS232 communication modules, CAN transceiver modules, PC machine, electric vehicle control
Device, display module, memory module and alarm module processed；Wherein,
Voltage acquisition module, for the total voltage signal of the voltage signal for the single battery measured, power battery is total through SPI
Line Interface Module is exported to controller；
Current acquisition module, for exporting the current signal for the power battery measured to A/D converter；
A/D converter, for by current signal after analog-to-digital conversion output current digital signal to controller；
Temperature collecting module, for exporting the temperature signal measured to controller；
Smoke sensing module, the concentration for detecting smog in power battery, and by the concentration value of the smog detected export to
Controller；
Controller, for receiving voltage signal, current digital signal, temperature signal and smog concentration value analyze
After processing, by treated, data are stored in memory module；Data that treated, which are exported to display module, to be shown；Work as temperature
When degree signal is more than the concentration value of preset temperature threshold or smog more than preset smog threshold value, output alarm signal to report
Alert module alarm；
The communication of controller and electric vehicle controller is carried out by CAN transceiver modules, and the data between controller and PC machine are received
Hair is realized by RS232 communication modules.
2. a kind of power battery management system for electric vehicle according to claim 1, which is characterized in that electric current is adopted
It includes LM358 chips and resistance to collect module；Wherein, one end of the positive input terminal of LM358 chips and resistance connect, resistance it is another
End is connected to ground, and the negative input end of LM358 chips is connect with the output end of LM358 chips, power end and the+12V of LM358 chips
Power supply connects, and the ground terminal of LM358 chips is connected to ground.
3. a kind of power battery management system for electric vehicle according to claim 1, which is characterized in that controller
For microcontroller.
4. a kind of power battery management system for electric vehicle according to claim 3, which is characterized in that microcontroller
For AT89C51 microcontrollers.
5. a kind of power battery management system for electric vehicle according to claim 1, which is characterized in that battery
Number is 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810082140.6A CN108327553A (en) | 2018-01-29 | 2018-01-29 | A kind of power battery management system for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810082140.6A CN108327553A (en) | 2018-01-29 | 2018-01-29 | A kind of power battery management system for electric vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110758103A (en) * | 2019-11-01 | 2020-02-07 | 张喜云 | Battery safety management method and device and new energy automobile |
| CN112631179A (en) * | 2020-12-18 | 2021-04-09 | 方奕海 | Safety protection control system for backup battery interface of medical equipment |
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2018
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110758103A (en) * | 2019-11-01 | 2020-02-07 | 张喜云 | Battery safety management method and device and new energy automobile |
| CN110758103B (en) * | 2019-11-01 | 2020-08-25 | 张喜云 | Battery safety management method and device and new energy automobile |
| CN112631179A (en) * | 2020-12-18 | 2021-04-09 | 方奕海 | Safety protection control system for backup battery interface of medical equipment |
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