CN107878243A - A kind of battery management system and method - Google Patents
A kind of battery management system and method Download PDFInfo
- Publication number
- CN107878243A CN107878243A CN201711206185.1A CN201711206185A CN107878243A CN 107878243 A CN107878243 A CN 107878243A CN 201711206185 A CN201711206185 A CN 201711206185A CN 107878243 A CN107878243 A CN 107878243A
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- Prior art keywords
- battery
- module
- control module
- host computer
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Human Computer Interaction (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
The invention belongs to technical field of battery management, and in particular to a kind of battery management system and method.The problem of technical problems to be solved by the invention are to propose a kind of battery management system and method, solve battery pack not manageability, and failure can not be handled voluntarily.In order to solve the above-mentioned technical problem, the present invention proposes such a battery management system and method, including battery pack, sampling module, detection module, control module, host computer, execution unit, alarm module, display unit and battery equalizer, sampling module and detection module carry out serial communication by Serial Peripheral Interface (SPI) and control module respectively, send information to control module, control module sends information to host computer, host computer is analyzed and processed the information received, and other modules send order by control module.The present invention, which has, helps user quickly to understand battery pack real-time status and the effect that can be handled in time when battery pack breaks down.
Description
Technical field
The invention belongs to technical field of battery management, and in particular to a kind of battery management system and method.
Background technology
With the continuous popularization of new-energy automobile, for manufacturer, how in volume production quicklook must understand
Battery state, realize efficiently debugging；For a user, it is how very clear to power situation in use, predict automobile
Remaining mileage is simultaneously used safely, is required for a platform that electonic speech can be converted into mankind's identifiable language.
Because actual vehicle environment is complicated, impulse disturbances can be produced when detecting battery state, have influence on the biography of data
It is defeated, or even hardware is caused damage.In order to obtain faultless data in high-speed communication, had in system design pair
These interference are handled
There are close relationship in the performance of battery and life-span with outside environment temperature, and in charge and discharge process, electricity
Pond temperature can also produce certain change, particularly overcharge and cross the stage of putting, and temperature is likely to vary greatly, and temperature is too high, can draw
Play failure and even result in battery pack blast.
Because the performance of every piece of battery has differences, so voltage of the every piece of battery in discharge and recharge is not exclusively, deposit
In deviation.If without Balance route, with the increase of charge and discharge cycles, each cell parameters are gradually broken up, and are accelerated
The loss rate of battery pack.
The content of the invention
According to above the deficiencies in the prior art, the technical problems to be solved by the invention are to propose a kind of battery management system
And method, the work of each module is managed by control module by using host computer, solves battery pack not manageability, event occurs
Barrier the problem of can not voluntarily handling, have and help user quickly to understand battery pack real-time status and can be when battery pack breaks down
The effect handled in time.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of battery management system, the described system include battery pack, sampling module, detection module, control module, upper
Machine, execution unit, alarm module, display unit and battery equalizer, sampling module and detection module pass through serial peripheral respectively
Interface carries out serial communication with control module, sends information to control module, and control module sends information to host computer, on
Position machine is analyzed and processed the information received, and is sent out by control module to battery equalizer, alarm module and executing agency
Corresponding order is sent, display unit is connected with host computer, the status information that host computer passes through display unit real-time display battery pack.
Preferably, the sampling module is adopted including battery monitoring chip, current sampling unit, temperature sampling unit, voltage
Sample unit and electricity sampling unit, battery monitoring chip is using the SPI of 4 lines as communication interface, current sampling unit, temperature
Sampling unit, voltage sampling unit and electricity sampling unit gather electric current, temperature, voltage and the information about power of battery pack respectively,
And send information to control module.
Preferably, in the input channel of the sampling module added with series resistance, between battery pack inputs both positive and negative polarity simultaneously
It is associated with electric capacity.
Preferably, the detection module includes short detection unit and detection of electrical leakage unit, short detection unit and electric leakage
Detection unit difference detecting system is sent by control module detection information to upper with the presence or absence of short circuit or leak current fault
Machine, the execution unit include breaker and radiator, and breaker and radiator control by control module.
Preferably, the control module uses 16 position digital signal controllers, is connect using I/O mouths to simulate SPI communication
Mouthful.
Preferably, the battery equalizer is made up of multiple identical shunt regulating circuits, the particular number of mu balanced circuit
Identical with the number of batteries that battery pack includes, each mu balanced circuit in parallel on every piece of battery, the mu balanced circuit includes electricity
The both ends for hindering R1, resistance R2, voltage-stabiliser tube D1, diode and triode Q1, resistance R1 are respectively connecting to the both positive and negative polarity of power supply, resistance
After R2 and voltage-stabiliser tube D1 series connection, in parallel with resistance R1, triode Q1 base stage is connected to R2 and voltage-stabiliser tube D1 interior joint, transmitting
Pole is connected to positive source, and colelctor electrode is with after Diode series, being connected to power cathode.
Preferably, the mu balanced circuit also includes light emitting diode and resistance R3, after light emitting diode is connected with resistance R3,
With the diodes in parallel.
A kind of battery management method, comprises the following steps：
Step 1：When battery pack works, sampling module gathers the real time information of battery pack, such as voltage, electricity, temperature and logical
The current strength of battery pack is crossed, detection module monitors battery state in real time, performs next step；
Step 2：The information transmission of acquisition to control module, is performed next step by sampling module and detection module；
Step 3：Control module is communicated with host computer, when detection unit detects failure, performs step 4, nothing is appointed
When why hindering, step 6 is performed；
Step 4：Host computer sends instruction by control module to execution unit and alarm module, performs next step；
Step 5：Breaker open circuit in execution unit, alarm module enter fault-alarming state, perform step 7；
Step 6：Host computer is sent to execution unit and battery equalizer by control module and instructed, in execution unit
Radiator carries out Balance route according to temperature level adjustment work power, battery equalizer, performs next step；
Step 7：Host computer will receive battery state information and be shown by display unit, be watched for user.
Present invention has the advantages that:
1st, user is helped quickly to understand battery pack real-time status；
2nd, being handled in time during some failures occurs in battery pack；
3rd, interference is reduced, the system is more precisely stablized；
4th, Balance route can be carried out to battery pack, increases the service life of battery pack.
Brief description of the drawings
The content expressed by this specification accompanying drawing and the mark in figure are briefly described below：
Fig. 1 is the system construction drawing of the embodiment of the present invention.
Fig. 2 is the voltage regulator circuit structure figure of the embodiment of the present invention.
Fig. 3 is the battery equalizer circuit diagram of the embodiment of the present invention.
Fig. 4 is the control module and sampling module communication structure figure of the embodiment of the present invention.
Fig. 5 is the working-flow figure of the embodiment of the present invention.
Embodiment
Below by the description to embodiment, the shape of for example involved each component of embodiment of the invention, structure
Make, the mutual alignment between each several part and annexation, the effect of each several part and operation principle, manufacturing process and the side of operating with
Method etc., is described in further detail, completeer to help those skilled in the art to have inventive concept of the invention, technical scheme
Whole, accurate and deep understanding.
As shown in figure 1, a kind of battery management system, including it is battery pack, sampling module, detection module, control module, upper
Machine, execution unit, alarm module, display unit and battery equalizer.Sampling module and detection module gather battery pack respectively
Status information, and control module is sent information to, control module sends information to host computer, the information that host computer will receive
Analyzed and processed, and corresponding order is sent to battery equalizer, alarm module and executing agency by control module.Display
Unit is connected with host computer, for showing the real-time status of battery pack, such as the voltage of battery pack, temperature, electricity and passes through battery
Current information of group etc..
SPI (Serial Peripheral Interface (SPI)) serial communication is used between sampling module and control module, battery pack letter can be rapidly completed
The collection of breath.The sampling module includes battery monitoring core, current sampling unit, temperature sampling unit, voltage sampling unit and electricity
Measure sampling unit, battery monitoring chip using the SPI of 4 lines as communication interface, realize respectively data input, data output,
Clock and piece choosing, current sampling unit are used to gather the current information by battery pack, and temperature sampling unit gathers every piece of battery
Temperature information, voltage sampling unit gathers the information of voltage of every piece of battery respectively, and electricity sampling unit detects every block of electricity respectively
The electricity of pond storage.
Because system context is complicated, certain impulse disturbances are had, have influence on the transmission of data, or even hardware is made
Into infringement, therefore filter circuit is also added in sampling module, for reducing or eliminating interference.It can add in input channel
Enter 100 Ω series resistance, meanwhile, the shunt capacitance between battery pack inputs both positive and negative polarity, RC filter circuits are formed, and make RC
Wave filter provides enough burning voltages before actual converted, can using 16kHz low pass filter (100 Ω, 0.1 μ F)
30dB noise suppresseds are provided.
Detection module includes short detection unit and detection of electrical leakage unit, is respectively used to detect battery pack with the presence or absence of short circuit
And leak current fault.Execution unit includes breaker and radiator, when there are the failures such as short circuit, electric leakage, excessively stream and overvoltage in system,
Breaker performs open circuit protection, and when battery pack temperature is too high, radiator adjusts corresponding operating power according to battery pack temperature,
Temperature is higher, and the operating power of heat emission fan is bigger.Alarm module is used for fault alarm.
The effect of battery equalizer is to control the voltage of every piece of battery in battery pack, makes all cell voltage phases in battery pack
It is same or close.Mu balanced circuit figure as shown in Figure 2, the mu balanced circuit include resistance R1, resistance R2, voltage-stabiliser tube D1, diode and
Triode Q1, resistance R1 both ends are respectively connecting to the both positive and negative polarity of power supply, after resistance R2 and voltage-stabiliser tube D1 connect, with resistance R1 simultaneously
Connection, triode Q1 base stage are connected to R2 and voltage-stabiliser tube D1 interior joint, and emitter stage is connected to positive source, colelctor electrode and two poles
After pipe series connection, power cathode is connected to, mu balanced circuit also includes light emitting diode and resistance R3, and light emitting diode is gone here and there with resistance R3
After connection, with the diodes in parallel.As shown in figure 3, battery equalizer circuit is made up of multiple identical shunt regulating circuits,
Particular number is identical with the number of batteries that battery pack includes, and set battery pack include three pieces of batteries in figure, on every piece of battery respectively
Mu balanced circuit in parallel.Each voltage-stabilized power supply adjusts most suitable voltage, for example, 4.2V.Balanced principle is：
When cell voltage is both less than 4.2V, shunt regulating circuit does not work, and charging current all passes through from battery.If battery is not
Equilibrium, wherein there is one piece of battery to be first full of, then shunt regulating circuit begins to work, plays shunting action, can be voltage one
4.2V directly is stabilized to, i.e. charging current is just no longer pass through the battery being full of.It should be noted that：The circuit of the battery equalizer
In three series connection diode IN4001, play partial pressure, it is possible to reduce scattered to consume the power on triode TIP42.If
These three diodes IN4001 is not met, then power P=4.2V × charging current of consumption is dissipated on triode TIP42, plus afterwards,
P=(4.2V-3 × 0.7V) × charging current.The light emitting diode on figure the right has indicative function, and lamp is bright, represents that voltage has reached
To 4.2V, i.e. battery corresponding to this equalizing circuit fills with electricity.
As shown in figure 4, the Master control chip of control module uses 16 position digital signal controllers, simulated using I/O mouths
SPI communication interface.Main control chip selects what is communicated by 4 SCLK ends (clock signal) with 4 CS ends (piece choosing)
Detection module, polylith battery can be managed simultaneously.When main control chip needs to be managed the battery pack that sampling module 11 connects
When, tranmitting data register signal on chip selection signal and SCLK ports SCK1 can be sent on the CSB1 of CS ports simultaneously, so makes sampling mould
Block 11 enters working condition, and control module is sent out by the MOSI ends (main frame exports, slave input) of spi bus to sampling module 11
Lose one's life order, and sampled data is received from sampling module 11 by MISO ends (main frame inputs, slave exports).Main control module afterwards
The data passed back according to module is adopted, the information of the needs obtained by processing, then take rational action.Including estimation SOC with
SOH, select the control of balance policy and discharge and recharge.
A kind of battery management method, comprises the following steps：
Step 1：When battery pack works, sampling module gathers the real time information of battery pack, such as voltage, electricity, temperature and logical
Current strength of battery pack etc. is crossed, detection module monitors battery state in real time, performs next step；
Step 2：The information transmission of acquisition to control module, is performed next step by sampling module and detection module；
Step 3：Control module is communicated with host computer, when detection unit detects failure, performs step 4, nothing is appointed
When why hindering, step 6 is performed；
Step 4：Host computer sends instruction by control module to execution unit and alarm module, performs next step；
Step 5：Breaker open circuit in execution unit, alarm module enter fault-alarming state, perform step 7；
Step 6：Host computer is sent to execution unit and battery equalizer by control module and instructed, in execution unit
Radiator carries out Balance route according to temperature level adjustment work power, battery equalizer, performs next step；
Step 7：Host computer will receive battery state information and be shown by display unit, be watched for user.
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above,
As long as employing the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress, or not improved this is sent out
Bright design and technical scheme directly applies to other occasions, within protection scope of the present invention.The protection of the present invention
Scope should be determined by the scope of protection defined in the claims.
Claims (8)
1. a kind of battery management system, it is characterised in that the described system includes battery pack, sampling module, detection module, control
Module, host computer, execution unit, alarm module, display unit and battery equalizer, sampling module and detection module pass through respectively
Serial Peripheral Interface (SPI) carries out serial communication with control module, sends information to control module, control module is sent information to
Host computer, host computer are analyzed and processed the information received, and to battery equalizer, alarm module and are held by control module
Row mechanism sends corresponding order, and display unit is connected with host computer, and host computer passes through display unit real-time display battery pack
Status information.
2. battery management system according to claim 1, it is characterised in that the sampling module includes battery monitoring core
Piece, current sampling unit, temperature sampling unit, voltage sampling unit and electricity sampling unit, battery monitoring chip use 4 line systems
SPI adopted respectively as communication interface, current sampling unit, temperature sampling unit, voltage sampling unit and electricity sampling unit
Electric current, temperature, voltage and the information about power of set battery group, and send information to control module.
3. battery management system according to claim 1, it is characterised in that in the input channel of the sampling module added with
Series resistance, electric capacity is parallel between battery pack inputs both positive and negative polarity.
4. battery management system according to claim 1, it is characterised in that the detection module includes short detection unit
With detection of electrical leakage unit, short detection unit and detection of electrical leakage unit difference detecting system whether there is short circuit or leak current fault,
And detection information is sent to host computer by control module, the execution unit includes breaker and radiator, breaker and
Radiator controls by control module.
5. battery management system according to claim 1, it is characterised in that the control module uses 16 position digital signals
Controller, SPI communication interface is simulated using I/O mouths.
6. battery management system according to claim 1, it is characterised in that the battery equalizer by multiple identicals simultaneously
Join mu balanced circuit composition, the particular number of mu balanced circuit is identical with the number of batteries that battery pack includes, each parallel connection on every piece of battery
One mu balanced circuit, the mu balanced circuit include resistance R1, resistance R2, voltage-stabiliser tube D1, diode and triode Q1, resistance R1
Both ends be respectively connecting to the both positive and negative polarity of power supply, after resistance R2 and voltage-stabiliser tube D1 series connection, triode Q1 base in parallel with resistance R1
Pole is connected to R2 and voltage-stabiliser tube D1 interior joint, and emitter stage is connected to positive source, and colelctor electrode is with after Diode series, being connected to
Power cathode.
7. battery management system according to claim 6, it is characterised in that the mu balanced circuit also includes light emitting diode
With resistance R3, after light emitting diode is connected with resistance R3, with the diodes in parallel.
8. according to the battery management method described in claim 1-7, it is characterised in that comprise the following steps：
Step 1：When battery pack works, sampling module gathers the real time information of battery pack, such as voltage, electricity, temperature and passes through electricity
The current strength of pond group, detection module monitor battery state in real time, perform next step；
Step 2：The information transmission of acquisition to control module, is performed next step by sampling module and detection module；
Step 3：Control module is communicated with host computer, when detection unit detects failure, performs step 4, without any event
During barrier, step 6 is performed；
Step 4：Host computer sends instruction by control module to execution unit and alarm module, performs next step；
Step 5：Breaker open circuit in execution unit, alarm module enter fault-alarming state, perform step 7；
Step 6：Host computer is sent to execution unit and battery equalizer by control module and instructed, the radiating in execution unit
Device carries out Balance route according to temperature level adjustment work power, battery equalizer, performs next step；
Step 7：Host computer will receive battery state information and be shown by display unit, be watched for user.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206185.1A CN107878243A (en) | 2017-11-27 | 2017-11-27 | A kind of battery management system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206185.1A CN107878243A (en) | 2017-11-27 | 2017-11-27 | A kind of battery management system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107878243A true CN107878243A (en) | 2018-04-06 |
Family
ID=61775324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711206185.1A Withdrawn CN107878243A (en) | 2017-11-27 | 2017-11-27 | A kind of battery management system and method |
Country Status (1)
| Country | Link |
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| CN (1) | CN107878243A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551858A (en) * | 2020-04-30 | 2020-08-18 | 四川享锂来科技有限公司 | Battery parameter remote acquisition system |
| CN111722122A (en) * | 2020-06-01 | 2020-09-29 | Oppo广东移动通信有限公司 | Detection method, detection device, electronic equipment and computer-readable storage medium |
| CN112615070A (en) * | 2020-12-15 | 2021-04-06 | 中国人民解放军陆军勤务学院 | Battery energy storage integration system and method |
| CN115863801A (en) * | 2023-02-27 | 2023-03-28 | 西安航天民芯科技有限公司 | Wireless ad hoc network battery information acquisition module |
| CN117013664A (en) * | 2023-09-27 | 2023-11-07 | 睿尔曼智能科技（北京）有限公司 | Wireless control device and system for mechanical arm |
-
2017
- 2017-11-27 CN CN201711206185.1A patent/CN107878243A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551858A (en) * | 2020-04-30 | 2020-08-18 | 四川享锂来科技有限公司 | Battery parameter remote acquisition system |
| CN111722122A (en) * | 2020-06-01 | 2020-09-29 | Oppo广东移动通信有限公司 | Detection method, detection device, electronic equipment and computer-readable storage medium |
| CN112615070A (en) * | 2020-12-15 | 2021-04-06 | 中国人民解放军陆军勤务学院 | Battery energy storage integration system and method |
| CN112615070B (en) * | 2020-12-15 | 2022-03-11 | 中国人民解放军陆军勤务学院 | Battery energy storage integration system and method |
| CN115863801A (en) * | 2023-02-27 | 2023-03-28 | 西安航天民芯科技有限公司 | Wireless ad hoc network battery information acquisition module |
| CN117013664A (en) * | 2023-09-27 | 2023-11-07 | 睿尔曼智能科技（北京）有限公司 | Wireless control device and system for mechanical arm |
| CN117013664B (en) * | 2023-09-27 | 2024-01-26 | 睿尔曼智能科技（北京）有限公司 | Wireless control device and system for mechanical arm |
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Application publication date: 20180406 |
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