CN107946673B - A kind of the Vehicular dynamic battery management system and its management method of high robust - Google Patents
A kind of the Vehicular dynamic battery management system and its management method of high robust Download PDFInfo
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- 238000007726 management method Methods 0.000 title claims description 71
- 238000003745 diagnosis Methods 0.000 claims abstract description 36
- 238000004458 analytical method Methods 0.000 claims abstract description 34
- 238000007599 discharging Methods 0.000 claims abstract description 24
- 238000012544 monitoring process Methods 0.000 claims abstract description 11
- 238000012360 testing method Methods 0.000 claims abstract description 6
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims description 34
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 9
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- 230000005611 electricity Effects 0.000 claims description 4
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- 238000006243 chemical reaction Methods 0.000 claims 1
- 230000006870 function Effects 0.000 description 11
- 230000004224 protection Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 230000003862 health status Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of Vehicular dynamic battery management system of high robust, including：Main control module, battery balanced administrative analysis, battery thermal management analysis, management of charging and discharging analysis, high-voltage safety administrative analysis based on being estimated according to the progress battery status estimation of correlation acquisition data and by battery status and vehicle state analysis, and corresponding control signal is sent out to corresponding module according to above-mentioned estimation result and analysis result；From control module, signal is controlled according to it, battery balanced adjusting and cell thermal temperature adjusting are carried out to each battery pack respectively；High-pressure modular is responsible for carrying out total pressure measurement, current acquisition and dielectric strength monitoring to main control module；Security module is diagnosed, the diagnosis security module carries out self-test and abnormity diagnosis to battery management system；Charge-discharge modules, the charging module are connect by charging interface with charging pile, are that each battery pack charges according to corresponding control signal；The discharge module realizes the normal operation of full-vehicle control equipment；System function can be effectively increased.
Description
Technical field
The present invention relates to field of battery management, and in particular to a kind of Vehicular dynamic battery management system of high robust and its
Management method.
Background technology
In the prior art, secondary cell is there are some following disadvantages, as storage energy is few, short life, connection in series-parallel use
Problem, safety in utilization, battery capacity estimation difficulty etc..The performance of battery is very complicated, and different types of battery behavior is also
It differs greatly.And common secondary cell：Lithium rechargeable battery, lithium polymer battery, Ni-MH battery, nickel-cadmium cell, lead electric power storage
Pond, and what is used in electric vehicle is then secondary cell, and energy is provided for automobile by battery, and electric vehicle is maximum a little
It is then environmental protection, instead of traditional automobile using diesel oil and gasoline, pollution discharge can be largely reduced, improve air quality.
In order to have a clear understanding of the service condition of battery in electric vehicle, can be equipped in the battery of electric vehicle at present corresponding
Battery management system, and battery management system mainly aims at the utilization rate that can improve battery, prevents battery from occurring
Charging and overdischarge, extend the service life of battery, monitor the state of battery.With the development of battery management system, can also increase
Add other functions.
But current battery management system has a single function, and has critical issue below：
1, battery status pro form bill one only controls the charging and discharging state of battery, and there is no the healthy shapes to battery
State or power rating are estimated comprehensively, and the error correcting capability of battery status is poor.
2, high-voltage isulation monitoring lacks, and is susceptible to high-voltage safety problem；
3, battery core safeguard protection lacks, and carrying out real-time voltage, electric current and temperature conditions to single battery core and whole group battery supervises
Survey not comprehensive, defencive function shortage etc..
Any of the above problem makes battery management system have a single function, and the monitoring and protection to battery are poor, seriously affect electricity
The safety index in pond.
Invention content
In view of the deficiencies of the prior art, the purpose of the present invention is intended to provide a kind of Vehicular dynamic battery management of high robust
System and its management method monitor the temperature of battery pack, voltage, electric current in real time, are protected comprehensively to battery, improve
The Safeguard tactics of battery, real complete defencive function and reliable cell safety are improved while the function of battery management
Management and high-voltage safety management.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of Vehicular dynamic battery management system of high robust, including：
Main control module is responsible for receiving the correlation acquisition from control module, high-pressure modular, full-vehicle control module and charge-discharge modules
Data, and according to correlation acquisition data carry out battery status estimation and by battery status estimate based on battery balanced management point
Analysis, battery thermal management analysis, management of charging and discharging analysis, high-voltage safety administrative analysis and vehicle state analysis, and estimated according to above-mentioned
It calculates result and analysis result and corresponding control signal is sent out to corresponding module；
From control module, voltage, electric current and the temperature data of each battery pack in vehicle are acquired by sensor group,
And the voltage, electric current and temperature data of each battery pack are transmitted in main control module；Receive what main control module analysis obtained simultaneously
About the control signal of battery balanced management and battery thermal management, and signal is controlled according to it, battery is carried out to each battery pack respectively
Well-balanced adjustment and cell thermal temperature are adjusted；
High-pressure modular is responsible for carrying out total pressure measurement, current acquisition and dielectric strength monitoring to main control module, and stagnation pressure is surveyed
Amount, current acquisition and dielectric strength monitoring data are transmitted to progress high-voltage safety administrative analysis in main control module；
Charge-discharge modules, charge-discharge modules receive main control module and analyze the control signal about management of charging and discharging obtained,
Charge-discharge modules include charging module and discharge module, and the charging module is connect by charging interface with charging pile, according to phase
The control signal answered is that each battery pack charges；The discharge module is realized by the multicircuit relay being connect with electric discharge interface
It is connect with full-vehicle control equipment, drive control is carried out to one or more corresponding relay according to corresponding control signal, it is real
The normal operation of existing full-vehicle control equipment, and charging and discharging state is fed back in main control module；
Security module is diagnosed, the diagnosis security module carries out self-test and abnormity diagnosis to battery management system, and generates
Corresponding diagnosis report；
CAN communication module, main control module by the CAN communication interface of CAN communication module respectively with from control module, charge and discharge
Module, diagnosis security module are connected.
Further, the battery status estimation includes the charged state estimation, cell health state estimation and electricity of battery
Pond power rating estimation.
Further, the main control module is connected with full-vehicle control module by CAN communication interface, by the vehicle instrument of vehicle
Table and the status data of full-vehicle control equipment are fed back in main control module；Simultaneously receive main control module analysis obtain about vehicle
The control signal of state, and signal is controlled according to it, the carload instrument and full-vehicle control equipment of vehicle are controlled.
Further, the main control module is also associated with data memory module, the data memory module and main control module
Signal is interconnected；Data memory module to main control module receive from control module, high-pressure modular, full-vehicle control module and fill
The correlation acquisition data of discharge module, the estimation result and analysis result of main control module, and diagnose the diagnosis in security module
Report is stored.
Further, the correlation acquisition data include voltage, temperature, charging and discharging currents and dielectric strength.
Further, it is described from control module include voltage acquisition control circuit, from control module pass through voltage acquisition control electricity
Road carries out battery balanced adjusting to each battery pack；The voltage acquisition control circuit includes logic control element, balanced unit, filter
Wave unit and converting unit；The balanced unit receives the control information about battery balanced management that main control module is sent out, respectively
The switching signal of battery pack is divided into odd number battery pack signal by the logical operation of logic control element and even number battery pack is believed
Number, the odd number battery pack signal and even number battery pack signal connect with balanced unit carry out battery voltage balanced processing respectively,
After electric voltage equalization treated odd number battery pack signal and the filtered unit of even number battery pack signal are filtered,
Corresponding digital signal is converted by converting unit again.
Further, described from control module further includes heating and refrigerating plant, receives what main control module was sent out from control module
After the control information of battery thermal management, by control heating and the working condition of refrigerating plant to the temperature of battery into
Row is adjusted.
Further, the main control module is also associated with the display module for human-computer interaction, the display module and master
Control module is connected.
A kind of Vehicular dynamic battery management method of high robust, including：
S1：After CAN communication module receives beginning degree message, by diagnose security module judge main control module and from
Whether the communication controlled between module is normal；If there are abnormal situations for communication, alert simultaneously certainly by diagnosing security module
It is dynamic to generate corresponding diagnosis report；
S2：Main control module reads the connection status of the charging interface and electric discharge interface of charge-discharge modules, detects charging interface
Whether it is all connected with normally with electric discharge interface, if charging interface or the electric discharge one of interface of interface do not connect normally, by examining
Disconnected security module is alerted and automatically generates corresponding diagnosis report；If charging interface and electric discharge interface are all connected with normally,
Continue following steps；
S3：Whether the electric discharge output state of master control module judges electric discharge interface is effective, if electric discharge output state is effective, sentences
Whether disconnected discharge module is carrying out electric discharge task, and task of discharging it carries out current limliting processing；If the output state that discharges is invalid,
Then judge whether the communication of each battery pack and charging pile is normal, then alert simultaneously certainly by diagnosing security module if abnormal,
Dynamic to generate corresponding diagnosis report, if communication is normal, it is that each battery pack carries out charging tasks to control charging pile；
S4：Terminate in current limliting processing or after charging tasks, main control module reads and preserves from control module, high pressing mold
The correlation acquisition data of block, full-vehicle control module and charge-discharge modules, and battery status estimation is carried out according to the gathered data, and
Its battery status estimation result is transmitted in memory module and display module.
Further, while carrying out electric discharge task and charging tasks in the step S3, battery management system can also be right
Electric discharge task and charging tasks carry out battery management step, wherein the battery management of electric discharge task and charging tasks specifically include with
Lower step：
S301：The temperature value of each battery pack is detected by sensor group, and whether judges temperature value beyond restriction range, if
Temperature value controls each battery pack temperature with refrigerating plant work beyond range, control heating is limited；
S302：After temperature value is maintained at and limits range, main control module just issues corresponding control signal to control charging
The progress of task or task of discharging；
S303：During charge or discharge, main control module is read in real time from control module, high-pressure modular, vehicle control
The correlation acquisition data of molding block and charge-discharge modules, and gathered data is judged whether beyond range is limited, if gathered data is equal
Without departing from range is limited, then battery status estimation is carried out according to the data, and its battery status estimation result is stored in storage
In module；If gathered data or battery status estimation result have exceeded restriction range, the voltage acquisition control from control module is controlled
The charging and discharging state of circuit, heating and refrigerating plant and charge-discharge modules processed is adjusted, after the adjustment again to related in real time
Gathered data is acquired and carries out battery status estimation, until gathered data and battery status estimation result maintain restriction model
In enclosing.
The beneficial effects of the present invention are：
Battery management function is improved, realizes the work(such as cell voltage, electric current, temperature acquisition and battery balanced and battery thermal management
Can, while there is insulating monitoring and high-voltage safety management, improve safety, stability and the reliability of battery operation.
Description of the drawings
Fig. 1 is the signal communication figure that Vehicular dynamic battery of the present invention manages system；
Fig. 2 is the flow chart of Vehicular dynamic battery management method of the present invention.
Reference numeral：1, main control module；2, from control module；3, battery pack；4, high-pressure modular；5, carload instrument；6, vehicle
Control module；7, full-vehicle control equipment；8, charge-discharge modules；9, charging pile.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the present invention is described further：
As shown in Figure 1, a kind of Vehicular dynamic battery of high robust manages system, including：
Main control module 1 is responsible for receiving from control module 2, the phase of high-pressure modular 4, full-vehicle control module 6 and charge-discharge modules 8
Close gathered data, and according to correlation acquisition data carry out battery status estimation and by battery status estimate based on it is battery balanced
Administrative analysis, battery thermal management analysis, management of charging and discharging analysis, high-voltage safety administrative analysis and vehicle state analysis, and according to
Above-mentioned estimation result and analysis result send out corresponding control signal to corresponding module, realize battery status estimating algorithm,
Management of charging and discharging algorithm, various protections and alarm function strategy etc., are the control process core cells of entire battery management system.
The correlation acquisition data include voltage, temperature, charging and discharging currents and the dielectric strength situation of modules.The wherein described battery
State estimation includes the charged state estimation, the estimation of 3 health status of battery pack and the estimation of 3 power rating of battery pack of battery pack 3.
From control module 2, voltage, electric current and the temperature data of each battery pack 3 in vehicle are adopted by sensor group
Collection, the sensor group includes temperature sensor, current divider, Hall sensor constant power device and circuit separate design, battery
Acquisition Circuit using high-precision and high reliability can cascade specialized simulation front-end circuit, each intermodule is electric using special isolation
Road acquires high current to ensure the reliability of data acquisition, using the Hall current sensor of dual power supply mode, while simultaneous
Hold current divider and acquire electric current so that control circuit and power circuit are completely isolated to improve reliability.Thereafter by each battery pack 3
Voltage, electric current and temperature data are transmitted in main control module 1, then main control module 1 can be received from control module 2 for each battery
The voltage of group 3, the gathered data of electric current and temperature；Simultaneously from control module 2 can receive main control module 1 analyze obtain about battery
The control signal of balanced management and battery thermal management, and signal is controlled according to it, battery balanced tune is carried out to each battery pack 3 respectively
Section and cell thermal temperature are adjusted.Wherein battery balanced adjusting is carried out by voltage acquisition control circuit, described from control module 2
Including voltage acquisition control circuit, battery balanced tune is carried out to each battery pack 3 by voltage acquisition control circuit from control module 2
Section；The voltage acquisition control circuit includes logic control element, balanced unit, filter unit and converting unit；The equilibrium
Unit receives the control information about battery balanced management that main control module 1 is sent out, and the switching signal of each battery pack 3 is by patrolling
The logical operation for collecting control unit is divided into 3 signal of 3 signal of odd number battery pack and even number battery pack, 3 signal of odd number battery pack
It is connect respectively with balanced unit with 3 signal of even number battery pack and carries out battery voltage balanced processing, treated by electric voltage equalization
After 3 signal of odd number battery pack and the filtered unit of 3 signal of even number battery pack are filtered, then converted by converting unit
For corresponding digital signal.Active equalization of battery or passive equalization function are realized by battery balanced adjusting so that each battery pack 3
In respectively go here and there battery core and all reach balanced consistent state.And battery thermal management is realized with refrigerating plant by heating, it is described
Further include heating and refrigerating plant from control module 2, the control about battery thermal management that main control module 1 is sent out is received from control module 2
After information processed, by controlling the working condition of heating and refrigerating plant so that the temperature of battery be adjusted, it can ensure in real time
The temperature value of each battery pack 3 is maintained at rational and limits in range, prevents the too high or too low for temperature of battery, is influencing battery just
Often work and service life.Using efficient battery thermal management technology so that each battery pack 3 is operated in best state of temperature, to carry
It rises energy content of battery utilization rate and extends the service life of battery.
High-pressure modular 4, is responsible for carrying out total pressure measurement to main control module 1, current acquisition and dielectric strength monitor, and by stagnation pressure
It measures, current acquisition and dielectric strength monitoring data are transmitted to progress high-voltage safety administrative analysis in main control module 1；High-voltage isulation
Monitoring and protection, monitor the dielectric strength and Grounding of battery, to ensure high-voltage safety in real time.
Full-vehicle control module 6, main control module 1 is by the external full-vehicle control module 6 of CAN communication interface, by the vehicle of vehicle
The status data of instrument 5 and full-vehicle control equipment 7 is fed back in main control module 1；Main control module 1 is received simultaneously analyzes the pass obtained
In the control signal of vehicle-state, and signal is controlled according to it, the carload instrument 5 and full-vehicle control equipment 7 of vehicle are controlled
System；Wherein carload instrument 5 includes but not limited to ignition switch equipment, hydraulic pressure signal equipment, AIR COND SIG Air Conditioner Singnal equipment etc., the vehicle
Control device 7 includes instrument board, steering, accelerator pedal, brake pedal etc., passes through carload instrument 5 and full-vehicle control equipment 7
The travel situations of vehicle launch and vehicle can be controlled, also can observe vehicle operation situation by carload instrument 5.
Charge-discharge modules 8, charge-discharge modules 8 receive main control module 1 and analyze the control letter about management of charging and discharging obtained
Number, charge-discharge modules 8 include charging module and discharge module, and the charging module is connect by charging interface with charging pile 9, root
It is that each battery pack 3 charges according to corresponding control signal；The discharge module by with the multichannel relay that connect of electric discharge interface
Device realization is connect with full-vehicle control equipment 7, is driven to one or more corresponding relay according to corresponding control signal
Control, realizes the normal operation of full-vehicle control equipment 7, and charging and discharging state is fed back in main control module 1.
CAN communication module, main control module 1 by the CAN communication interface of CAN communication module respectively with from control module 2, charge and discharge
Electric module 8, diagnosis security module, full-vehicle control module 6 are connected.
The main control module 1 is also associated with diagnosis security module, and the diagnosis security module passes through CAN communication module
CAN communication interface is connect with main control module 1；The diagnosis security module carries out self-test and abnormity diagnosis to battery management system,
And generate corresponding diagnosis report；The self-test of security module energy and abnormity diagnosis function are diagnosed, battery management system can be improved multiple
There is powerful error correcting capability under the conditions of general labourer's condition, user is allowed to understand the diagnosis security situation of battery the moment.
The main control module 1 is also associated with data memory module, and the data memory module and 1 signal of main control module are mutual
Connection；Data memory module to main control module 1 receive from control module 2, high-pressure modular 4, full-vehicle control module 6 and charge and discharge
The correlation acquisition data of module 8, the estimation result and analysis result of main control module 1, and diagnose the diagnosis report in security module
Announcement is stored.
Further more, the main control module 1 is also associated with the display module for human-computer interaction, the display module and master control mould
Block 1 is connected, and the estimation result of user's real time inspection battery and diagnostic analysis can be made to report by display module.
And the management method of above-mentioned Vehicular dynamic battery management system, as shown in Fig. 2, including：
S1：After opening battery management system, i.e., communications are carried out by CAN communication module；It is received in CAN communication module
To start degree message after, by diagnose security module judge main control module 1 and from control module 2 between communication it is whether normal；
If there are abnormal situations for communication, is alerted by diagnosis security module and automatically generate corresponding diagnosis report；It is protecting
Card main control module 1 and from control module 2 between communication it is normal in the case of carry out step S2 again.
S2：Main control module 1 reads the connection status of the charging interface and electric discharge interface of charge-discharge modules 8, detects charging
Whether mouth and electric discharge interface are all connected with normally, if charging interface or the electric discharge one of interface of interface do not connect normally, pass through
Diagnosis security module is alerted and automatically generates corresponding diagnosis report；If charging interface and electric discharge interface are all connected with normally,
Then continue following steps；The purpose of step S2 is whether detection charging interface and electric discharge interface connect normally, avoids charge and discharge
The interface of electric module 8 does not connect load, the case where electric leakage.
S3：Main control module 1 judges whether the electric discharge output state of electric discharge interface is effective, if electric discharge output state is effective,
Judge whether discharge module is carrying out electric discharge task, and task of discharging it carries out current limliting processing, ensures the peace of electric discharge task
Quan Xing；If the output state that discharges is invalid, judge whether each battery pack 3 and the communication of charging pile 9 are normal, if communication is abnormal,
Corresponding diagnosis report is then alerted and is automatically generated by diagnosing security module, if communication is normal, controlling charging pile 9 is
Each battery pack 3 carries out charging tasks；The purpose of step S3 is to detect the charge status of charge-discharge modules 8, if being put
Electric task then carries out current limliting to electric discharge task, ensures the safety of discharge process, it is ensured that the normal work of full-vehicle control equipment 7；If
When not carrying out electric discharge task, you can proceed by charging tasks.
S4：Terminate in current limliting processing or after charging tasks, main control module 1, which is read, simultaneously to be preserved from control module 2, high pressing mold
The correlation acquisition data of block 4, full-vehicle control module 6 and charge-discharge modules 8, and battery status is carried out according to the gathered data and is estimated
It calculates, and its battery status estimation result is transmitted in memory module and display module.It is completed in charging tasks or electric discharge task
When, each mould correlation acquisition data in the block are read in real time, and are estimated using the estimation of gathered data progress charged state, power rating
It calculates and health status is estimated, user is allowed to understand the concrete condition of the concrete condition and battery status of charge and discharge.
And while carrying out electric discharge task and charging tasks in the step S3, battery management system can also be to task of discharging
Battery management step is carried out with charging tasks, wherein the battery management of electric discharge task and charging tasks specifically includes following steps：
S301：The temperature value of each battery pack 3 is detected by sensor group, and is judged whether temperature value exceeds and limited range,
If temperature value controls 3 temperature of each battery pack with refrigerating plant work beyond range, control heating is limited；Ensure each battery
The operating temperature of group 3 maintains suitable limit in range.
S302：After temperature value is maintained at and limits range, main control module 1 just issues corresponding control signal to control charging
The progress of task or task of discharging.
S303：During charge or discharge, main control module 1 is read in real time from control module 2, high-pressure modular 4, vehicle
The correlation acquisition data of control module 6 and charge-discharge modules 8, and gathered data is judged whether beyond range is limited, if acquisition number
According to without departing from range is limited, then according to data progress battery status estimation, and its battery status estimation result is stored in
In memory module；If gathered data or battery status estimation result have exceeded restriction range, controls and adopted from the voltage of control module 2
Collection control circuit, heating and the charging and discharging state of refrigerating plant and charge-discharge modules 8 are adjusted, after the adjustment again to real-time
Correlation acquisition data are acquired and carry out battery status estimation, until gathered data and battery status estimation result maintain limit
Determine in range.
The high robust battery management system of the present invention, efficiently solves following several big key technical problems：1, battery shape
State is estimated, can accurately estimate charged state (SOC) and health status (SOH) and power rating (SOP), while in complex working condition
Under the conditions of have powerful error correcting capability；2, high-voltage isulation monitoring and protection monitor the dielectric strength and ground connection feelings of battery in real time
Condition, to ensure high-voltage safety；3, battery core safety management carries out real-time voltage and electric current and temperature to single battery core and whole group battery
Multi-level alarm and defencive function are realized in monitoring；4, high current active equalization technology, the battery core that makes respectively to go here and there in battery pack 3 all reach equal
Weigh consistent state；5, battery thermal management technology makes battery core be operated in best state of temperature；6, self-test and abnormity diagnosis work(
Energy.This project improves energy content of battery utilization rate, and can extend the service life of battery core, really ensures the safety, steady of battery operation
Qualitative, reliability.
It will be apparent to those skilled in the art that technical solution that can be as described above and design, make various other
Corresponding change and deformation, and all these changes and deformation should all belong to the protection domain of the claims in the present invention
Within.
Claims (9)
1. a kind of Vehicular dynamic battery of high robust manages system, which is characterized in that including：
Main control module is responsible for receiving the correlation acquisition number from control module, high-pressure modular, full-vehicle control module and charge-discharge modules
According to, and according to correlation acquisition data carry out battery status estimation and by battery status estimate based on battery balanced management point
Analysis, battery thermal management analysis, management of charging and discharging analysis, high-voltage safety administrative analysis and vehicle state analysis, and estimated according to above-mentioned
It calculates result and analysis result and corresponding control signal is sent out to corresponding module；
From control module, voltage, electric current and the temperature data of each battery pack in vehicle are acquired by sensor group, and will
Voltage, electric current and the temperature data of each battery pack are transmitted in main control module；Simultaneously receive main control module analysis obtain about
The control signal of battery balanced management and battery thermal management, and it is battery balanced to the progress of each battery pack respectively according to its control signal
It adjusts and cell thermal temperature is adjusted；
It is described from control module include voltage acquisition control circuit, from control module by voltage acquisition control circuit to each battery pack into
The battery balanced adjusting of row；The voltage acquisition control circuit includes that logic control element, balanced unit, filter unit and conversion are single
Member；The balanced unit receives the control information about battery balanced management that main control module is sent out, the switch letter of each battery pack
Number odd number battery pack signal and even number battery pack signal, the odd number battery are divided by the logical operation of logic control element
Group signal and even number battery pack signal are connect with balanced unit respectively carries out battery voltage balanced processing, is handled by electric voltage equalization
After odd number battery pack signal and the filtered unit of even number battery pack signal afterwards is filtered, then pass through converting unit turn
Turn to corresponding digital signal；
High-pressure modular, is responsible for carrying out total pressure measurement to main control module, current acquisition and dielectric strength monitor, and by total pressure measurement,
Current acquisition and dielectric strength monitoring data are transmitted to progress high-voltage safety administrative analysis in main control module；
Charge-discharge modules, charge-discharge modules receive main control module and analyze the control signal about management of charging and discharging obtained, charge and discharge
Electric module includes charging module and discharge module, and the charging module is connect by charging interface with charging pile, according to corresponding
Control signal is that each battery pack charges；The discharge module by with electric discharge interface connect multicircuit relay realization with it is whole
Vehicle control device connects, and carries out drive control to one or more corresponding relay according to corresponding control signal, realizes whole
The normal operation of vehicle control device, and charging and discharging state is fed back in main control module；
Security module is diagnosed, the diagnosis security module carries out self-test and abnormity diagnosis to battery management system, and generates corresponding
Diagnosis report；
CAN communication module, main control module by the CAN communication interface of CAN communication module respectively with from control module, charge and discharge mould
Block, diagnosis security module are connected.
2. the Vehicular dynamic battery of high robust according to claim 1 manages system, which is characterized in that the battery shape
State estimation includes the charged state estimation, cell health state estimation and battery power status estimation of battery.
3. the Vehicular dynamic battery of high robust according to claim 1 manages system, which is characterized in that the master control mould
Block is circumscribed with full-vehicle control module by CAN communication interface, by the status data of the carload instrument of vehicle and full-vehicle control equipment
It feeds back in main control module；Main control module is received simultaneously and analyzes the control signal about vehicle-state obtained, and according to its control
Signal processed controls the carload instrument and full-vehicle control equipment of vehicle.
4. the Vehicular dynamic battery of high robust according to claim 3 manages system, which is characterized in that the master control mould
Block is also associated with data memory module, and the data memory module is interconnected with main control module signal；Data memory module pair
Main control module receive from control module, the correlation acquisition data of high-pressure modular, full-vehicle control module and charge-discharge modules, master control
Diagnosis report in the estimation result and analysis result of module, and diagnosis security module is stored.
5. the Vehicular dynamic battery of high robust according to claim 1 or 4 manages system, which is characterized in that the phase
It includes voltage, temperature, charging and discharging currents and dielectric strength to close gathered data.
6. the Vehicular dynamic battery of high robust according to claim 1 manages system, which is characterized in that described from control mould
Block further includes heating and refrigerating plant, after control module receives the control information about battery thermal management that main control module is sent out,
By controlling the working condition of heating and refrigerating plant so that the temperature of battery be adjusted.
7. the Vehicular dynamic battery of the high robust according to 1,3,4,6 any one of claim manages system, feature
It is, the main control module is also associated with the display module for human-computer interaction, and the display module is connected with main control module.
8. a kind of management method of the Vehicular dynamic battery management system of high robust according to claim 1, feature
It is, including：
S1：After CAN communication module receives beginning degree message, by diagnose security module judge main control module and from control mould
Whether the communication between block is normal；If there are abnormal situations for communication, is alerted by diagnosis security module and given birth to automatically
At corresponding diagnosis report；
S2：Main control module reads the connection status of the charging interface and electric discharge interface of charge-discharge modules, detects charging interface and puts
Whether electrical interface is all connected with normally, if charging interface or the electric discharge one of interface of interface do not connect normally, is pacified by diagnosing
Full module is alerted and automatically generates corresponding diagnosis report；If charging interface and electric discharge interface are all connected with normally, continue
It follows the steps below；
S3：Whether the electric discharge output state of master control module judges electric discharge interface is effective, if electric discharge output state is effective, judgement is put
Whether electric module is carrying out electric discharge task, and task of discharging it carries out current limliting processing；If the output state that discharges is invalid, sentence
Whether the communication of each battery pack of breaking and charging pile is normal, is then alerted by diagnosis security module and is given birth to automatically if abnormal,
At corresponding diagnosis report, if communication is normal, it is that each battery pack carries out charging tasks to control charging pile；
S4：Terminate in current limliting processing or after charging tasks, main control module reads and preserves from control module, high-pressure modular, whole
The correlation acquisition data of vehicle control module and charge-discharge modules, and according to the gathered data carry out battery status estimation, and by its
Battery status estimation result is transmitted in memory module and display module.
9. the Vehicular dynamic battery management method of high robust according to claim 8, which is characterized in that the step S3
In while carry out electric discharge task and charging tasks, battery management system can also carry out cell tube to electric discharge task and charging tasks
Step is managed, wherein the battery management of electric discharge task and charging tasks specifically includes following steps：
S301：The temperature value of each battery pack is detected by sensor group, and judges temperature value whether beyond range is limited, if temperature
Value controls each battery pack temperature with refrigerating plant work beyond range, control heating is limited；
S302：After temperature value is maintained at and limits range, main control module just issues corresponding control signal to control charging tasks
Or the progress of electric discharge task；
S303：During charge or discharge, main control module is read in real time from control module, high-pressure modular, full-vehicle control mould
The correlation acquisition data of block and charge-discharge modules, and gathered data is judged whether beyond range is limited, if gathered data does not surpass
Go out and limit range, then carries out battery status estimation according to the data, and its battery status estimation result is stored in memory module
In；If gathered data or battery status estimation result have exceeded restriction range, controls from the voltage acquisition of control module and control electricity
The charging and discharging state of road, heating and refrigerating plant and charge-discharge modules is adjusted, after the adjustment again to real-time correlation acquisition
Data are acquired and carry out battery status estimation, until gathered data and battery status estimation result maintain restriction range
It is interior.
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| CN109828451B (en) * | 2019-01-11 | 2021-11-23 | 江苏大学 | Construction method of four-degree-of-freedom magnetic bearing controller of flywheel battery for electric automobile |
| CN109755689A (en) * | 2019-03-04 | 2019-05-14 | 深圳源创智能照明有限公司 | One kind can temperature controlled battery protection system |
| CN110061545B (en) * | 2019-05-10 | 2024-02-27 | 江苏科技大学 | Charging and discharging control device of propulsion battery and control method thereof |
| CN111002830B (en) * | 2019-12-19 | 2021-06-18 | 吉林建筑大学 | Power battery management system and method based on flexible heat pipe |
| CN112133972B (en) * | 2020-09-22 | 2022-04-22 | 广州亿航智能技术有限公司 | Battery management system and method and aircraft |
| CN112769591B (en) * | 2020-12-02 | 2023-04-25 | 惠州市蓝微新源技术有限公司 | Effective anti-interference and error-proof daisy chain communication processing method |
| CN113285130A (en) * | 2021-06-25 | 2021-08-20 | 中国华能集团清洁能源技术研究院有限公司 | Rechargeable distributed control battery system and working method thereof |
| CN113612313B (en) * | 2021-10-09 | 2022-02-15 | 深圳达人高科电子有限公司 | Large-scale energy storage battery management system based on bluetooth transmission |
| CN114407724A (en) * | 2022-02-07 | 2022-04-29 | 凯斯达科技有限公司 | Battery management system of new energy automobile |
| CN117559016B (en) * | 2023-12-28 | 2024-04-05 | 黑龙江瑞兴科技股份有限公司 | Intelligent battery management system and battery management method |
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