CN107946673A - The Vehicular dynamic battery management system and its management method of a kind of high robust - Google Patents
The Vehicular dynamic battery management system and its management method of a kind of high robust Download PDFInfo
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- CN107946673A CN107946673A CN201711251759.7A CN201711251759A CN107946673A CN 107946673 A CN107946673 A CN 107946673A CN 201711251759 A CN201711251759 A CN 201711251759A CN 107946673 A CN107946673 A CN 107946673A
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- 238000007726 management method Methods 0.000 title claims description 81
- 238000004458 analytical method Methods 0.000 claims abstract description 37
- 238000003745 diagnosis Methods 0.000 claims abstract description 33
- 238000007599 discharging Methods 0.000 claims abstract description 24
- 238000012544 monitoring process Methods 0.000 claims abstract description 11
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 6
- 238000012360 testing method Methods 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 34
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 12
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 230000003993 interaction Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000036541 health Effects 0.000 claims description 2
- 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
- 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
Classifications
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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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
A kind of Vehicular dynamic battery management system of high robust, including：Main control module, according to correlation acquisition data carry out battery status estimation and by battery status estimate based on battery balanced administrative analysis, battery thermal management analysis, management of charging and discharging analysis, high-voltage safety administrative analysis and vehicle state analysis, and corresponding control signal is sent to corresponding module according to above-mentioned estimation result and analysis result；From control module, battery balanced adjusting carries out each battery pack respectively according to its control signal and cell thermal temperature is adjusted；High-pressure modular, is responsible for carrying out main control module total pressure measurement, current acquisition and dielectric strength monitoring；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 connected by charging interface with charging pile, are charged according to corresponding control signal for each battery pack；The discharge module realizes the normal operation of full-vehicle control equipment；Systemic-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 shortcomings, 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
Differ 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 automobile is then secondary cell, and energy is provided for automobile by battery, and electric automobile is maximum a little
It is then environmental protection, instead of traditional automobile using diesel oil and gasoline, can largely reduces pollution discharge, improve air quality.
In order to have a clear understanding of the service condition of battery in electric vehicle, can be equipped with present in the battery of electric vehicle 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 function is single, there is following key issue：
1st, battery status pro form bill one, is only controlled the charging and discharging state of battery, not to the healthy shape of battery
State or power rating are estimated comprehensively, and the error correcting capability of battery status is poor.
2nd, high-voltage isulation monitoring lacks, and high-voltage safety problem easily occurs；
3rd, 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 make it that battery management system function is single, and the monitoring and protection to battery are poor, seriously affect electricity
The safety index in pond.
The content of the invention
In view of the deficiencies of the prior art, the purpose of the present invention aims 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, and battery is protected comprehensively, 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
Calculate result and analysis result sends corresponding control signal 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 was drawn at the same time
Battery is carried out to each battery pack respectively on battery balanced management and the control signal of battery thermal management, and according to its control signal
Well-balanced adjustment and cell thermal temperature are adjusted；
High-pressure modular, is responsible for carrying out main control module total pressure measurement, current acquisition and dielectric strength monitoring, 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 the control signal on management of charging and discharging that main control module analysis is drawn,
Charge-discharge modules include charging module and discharge module, and the charging module is connected by charging interface with charging pile, according to phase
The control signal answered charges for each battery pack；The discharge module is realized by the multicircuit relay being connected with electric discharge interface
It is connected with full-vehicle control equipment, control is driven 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 produces
Corresponding diagnosis report；
CAN communication module, main control module by the CAN communication interface of CAN communication module respectively with from control module, discharge and recharge
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；At the same time receive main control module analysis draw on vehicle
The control signal of state, and the carload instrument and full-vehicle control equipment of vehicle are controlled according to its control signal.
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 main control module is received 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 to include voltage acquisition control circuit from control module, control electricity from control module by voltage acquisition
Road carries out battery balanced adjusting to each battery pack；The voltage acquisition control circuit includes logic control element, balanced unit, filter
Ripple unit and converting unit；The balanced unit receives the control information on battery balanced management that main control module is sent, 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 are connected with balanced unit carry out battery voltage balanced processing respectively,
After odd number battery pack signal and the filtered unit of even number battery pack signal after electric voltage equalization is handled are filtered processing,
Corresponding digital signal is converted into by converting unit again.
Further, it is described to further include heating and refrigerating plant from control module, receive what main control module was sent from control module
After the control information of battery thermal management, by control heating and the working status of refrigerating plant so as 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 communication alert simultaneously certainly there are abnormal situation by diagnosing security module
The dynamic corresponding diagnosis report of generation；
S2：Main control module reads the charging interface of charge-discharge modules and the connection status of electric discharge interface, 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, if abnormal, alert simultaneously certainly by diagnosing security module
The dynamic corresponding diagnosis report of generation, if communication is normal, controls charging pile to carry out charging tasks for each battery pack；
S4：Current limliting processing terminate or charging tasks after, main control module read and preserve 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 scope, if
Temperature value is controlled each battery pack temperature with refrigerating plant work beyond scope, control heating is limited；
S302：After temperature value is maintained at and limits scope, 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 whether gathered data is judged beyond scope is limited, if gathered data is equal
Without departing from scope 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 control the voltage acquisition control from control module beyond scope is limited
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 the security, stability and reliability of battery operation.
Brief description of the drawings
Fig. 1 is the signal communication figure of Vehicular dynamic battery management system of the present invention；
Fig. 2 is the flow chart of Vehicular dynamic battery management method of the present invention.
Reference numeral：1st, main control module；2nd, from control module；3rd, battery pack；4th, high-pressure modular；5th, carload instrument；6th, vehicle
Control module；7th, full-vehicle control equipment；8th, charge-discharge modules；9th, charging pile.
Embodiment
In the following, with reference to attached drawing and embodiment, the present invention is described further：
As shown in Figure 1, a kind of Vehicular dynamic battery management system of high robust, including：
Main control module 1, is responsible for receiving the phase from control module 2, 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 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 whole battery management system.
The correlation acquisition data include voltage, temperature, charging and discharging currents and the dielectric strength situation of modules.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 include temperature sensor, current divider, Hall sensor constant power device and circuit separate design, battery
Acquisition Circuit uses the specialized simulation front-end circuit cascaded of high accuracy and high reliability, and each intermodule uses special isolation electricity
Road gathers high current to ensure the reliability of data acquisition, using the Hall current sensor of dual power supply mode, while simultaneous
Hold current divider collection 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；At the same time from control module 2 can receive main control module 1 analyze draw on battery
Balanced management and the control signal of battery thermal management, and battery balanced tune is carried out to each battery pack 3 according to its control signal 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 on battery balanced management that main control module 1 is sent, 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 connected respectively with balanced unit with 3 signal of even number battery pack and carries out battery voltage balanced processing, after electric voltage equalization is handled
After 3 signal of odd number battery pack and the filtered unit of 3 signal of even number battery pack are filtered processing, 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 each string battery core all reach balanced consistent state.It is described and battery thermal management is then to be realized by heating with refrigerating plant
Heating and refrigerating plant are further included from control module 2, the control on battery thermal management sent from the control reception main control module 1 of module 2
After information processed, by controlling the working status 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 in the range of rational restriction, is prevented the too high or too low for temperature of battery, is being influenced battery just
Often work and service life.Using efficient battery thermal management technology so that each battery pack 3 is operated in optimal state of temperature, to carry
Rise energy content of battery utilization rate and extend 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
Measurement, 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 at the same time analyzes the pass drawn
The carload instrument 5 and full-vehicle control equipment 7 of vehicle are controlled in the control signal of vehicle-state, and according to its control signal
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 vehicle operation situation can be observed by carload instrument 5.
Charge-discharge modules 8, charge-discharge modules 8 receive main control module 1 and analyze the control letter on management of charging and discharging drawn
Number, charge-discharge modules 8 include charging module and discharge module, and the charging module is connected by charging interface with charging pile 9, root
Charge according to corresponding control signal for each battery pack 3；The discharge module by with the multichannel relay that is connected of electric discharge interface
Device is realized and is connected with full-vehicle control equipment 7, one or more corresponding relay is driven 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 connected with main control module 1；The diagnosis security module carries out self-test and abnormity diagnosis to battery management system,
And produce 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, allow user 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 main control module 1 is received from control module 2, high-pressure modular 4, full-vehicle control module 6 and discharge and recharge
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 can report the estimation result of user's real time inspection battery and diagnostic analysis 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；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 communication is alerted there are abnormal situation, by diagnosing security module and automatically generates corresponding diagnosis report；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 charging interface of charge-discharge modules 8 and the connection status of electric discharge interface, 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, situation about leaking electricity occurs.
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,
Then alerted by diagnosing security module and automatically generate corresponding diagnosis report, if communication is normal, control 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 carry out current limliting to electric discharge task, ensure 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：Current limliting processing terminate or charging tasks after, main control module 1 read and preserve 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
Calculate, and its battery status estimation result is transmitted in memory module and display module.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
Calculate and health status is estimated, allow user to understand the concrete condition of discharge and recharge and the concrete condition of battery status.
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 judges whether temperature value exceeds and limits scope,
If temperature value is controlled each 3 temperature of battery pack with refrigerating plant work beyond scope, control heating is limited；Ensure each battery
The operating temperature of group 3 is maintained in the range of suitable limit.
S302：After temperature value is maintained at and limits scope, 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 whether gathered data is judged beyond scope is limited, if collection number
According to without departing from scope 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 beyond scope is limited, control the voltage from control module 2 to adopt
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 scope.
The high robust battery management system of the present invention, efficiently solves following several big key technical problems：1st, 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 there is powerful error correcting capability；2nd, 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；3rd, battery core safety management, real-time voltage and electric current and temperature are carried out to single battery core and whole group battery
Monitoring, realizes multi-level alarm and defencive function；4th, high current active equalization technology, makes each string battery core in battery pack 3 all reach equal
Weigh consistent state；5th, battery thermal management technology, makes battery core be operated in optimal state of temperature；6th, 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 security, 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 other various
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 (10)
- A kind of 1. Vehicular dynamic battery management system of high robust, it is characterised 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 Calculate result and analysis result sends corresponding control signal 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；At the same time receive main control module analysis draw on Battery balanced management and the control signal of battery thermal management, and it is battery balanced to the progress of each battery pack respectively according to its control signal Adjust and cell thermal temperature is adjusted；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 the control signal on management of charging and discharging that main control module analysis is drawn, charge and discharge Electric module includes charging module and discharge module, and the charging module is connected by charging interface with charging pile, according to corresponding Control signal charges for each battery pack；The discharge module by with electric discharge interface be connected multicircuit relay realization with it is whole Car control device connects, and is driven control to one or more corresponding relay according to corresponding control signal, realizes whole The normal operation of car control device, and charging and discharging state is fed back in main control module；Security module is diagnosed, the diagnosis security module carries out battery management system self-test and abnormity diagnosis, and produces corresponding Diagnosis report；CAN communication module, main control module by the CAN communication interface of CAN communication module respectively with from control module, discharge and recharge mould Block, diagnosis security module are connected.
- 2. the Vehicular dynamic battery management system of high robust according to claim 1, it is characterised 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 management system of high robust according to claim 1, it is characterised 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 Feed back in main control module；The control signal on vehicle-state that main control module analysis is drawn is received at the same time, and according to its control Signal processed is controlled the carload instrument and full-vehicle control equipment of vehicle.
- 4. the Vehicular dynamic battery management system of high robust according to claim 3, it is characterised 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 The correlation acquisition data from control module, high-pressure modular, full-vehicle control module and charge-discharge modules that main control module receives, master control Diagnosis report in the estimation result and analysis result of module, and diagnosis security module is stored.
- 5. the Vehicular dynamic battery management system of the high robust according to claim 1 or 4, it is characterised in that the phase Closing gathered data includes voltage, temperature, charging and discharging currents and dielectric strength.
- 6. the Vehicular dynamic battery management system of high robust according to claim 1, it is characterised in that described from control mould Block includes voltage acquisition control circuit, and battery balanced tune is carried out to each battery pack from control module by voltage acquisition control circuit Section；The voltage acquisition control circuit includes logic control element, balanced unit, filter unit and converting unit；The equilibrium Unit receives the control information on battery balanced management that main control module is sent, and the switching signal of each battery pack passes through logic The logical operation of control unit is divided into odd number battery pack signal and even number battery pack signal, the odd number battery pack signal and even number Battery pack signal is connected with balanced unit respectively carries out battery voltage balanced processing, the odd number battery after electric voltage equalization is handled Group signal and after the filtered unit of even number battery pack signal is filtered processing, then corresponding number is converted into by converting unit Word signal.
- 7. the Vehicular dynamic battery management system of high robust according to claim 6, it is characterised in that described from control mould Block further includes heating and refrigerating plant, after control module receives the control information on battery thermal management that main control module is sent, By controlling the working status of heating and refrigerating plant so that the temperature of battery be adjusted.
- 8. according to the Vehicular dynamic battery management system of the high robust described in any one of claim 1,3,4,6 or 7, it is special Sign is that 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 Connect.
- A kind of 9. Vehicular dynamic battery management method of high robust, it is characterised in that 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 communication is alerted there are abnormal situation, by diagnosing security module and given birth to automatically Into corresponding diagnosis report；S2：Main control module reads the charging interface of charge-discharge modules and the connection status of electric discharge interface, 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, continuing Follow 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 Break each battery pack and charging pile communication it is whether normal, if abnormal, alerted by diagnosing security module and given birth to automatically Into corresponding diagnosis report, if communication is normal, charging pile is controlled to carry out charging tasks for each battery pack；S4：Current limliting processing terminate or charging tasks after, main control module reads and preserves from control module, high-pressure modular, whole The correlation acquisition data of car 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.
- 10. the Vehicular dynamic battery management method of high robust according to claim 9, it is characterised in that the step While electric discharge task and charging tasks are carried out in S3, battery management system can also carry out battery to electric discharge task and charging tasks Management process, 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 whether judges temperature value beyond scope is limited, if temperature Value is controlled each battery pack temperature with refrigerating plant work beyond scope, control heating is limited；S302：After temperature value is maintained at and limits scope, 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 whether gathered data is judged beyond scope is limited, if gathered data does not surpass Go out and limit scope, then carry 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 beyond scope is limited, control the voltage acquisition from control module to 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 scope It is interior.
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| 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 |
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| CN112769591A (en) * | 2020-12-02 | 2021-05-07 | 惠州市蓝微新源技术有限公司 | Effective anti-interference and error-proof daisy chain communication processing method |
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| WO2024138674A1 (en) * | 2022-12-30 | 2024-07-04 | 华为技术有限公司 | Battery monitoring method and apparatus |
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