CN205863328U - Extendible hybrid battery management system - Google Patents
Extendible hybrid battery management system Download PDFInfo
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- CN205863328U CN205863328U CN201620688581.7U CN201620688581U CN205863328U CN 205863328 U CN205863328 U CN 205863328U CN 201620688581 U CN201620688581 U CN 201620688581U CN 205863328 U CN205863328 U CN 205863328U
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The utility model proposes a kind of extendible hybrid battery management system, including Main Processor Unit and expansible subelement；Between described Main Processor Unit and described expansible subelement, and between adjacent expansible subelement, connected by daisy chain communication modes；Described expansible subelement gathers the voltage of current battery core module, temperature, execution equalization function and fault diagnosis functions, and the battery core module information transmission extremely described Main Processor Unit that will currently be managed by daisy chain communication modes；Described Main Processor Unit, according to voltage, electric current, temperature and the system failure information of all battery core modules, runs pre-set system strategy and carries out communication with external equipment.The extendible hybrid battery management system provided in this utility model, by battery core module voltage, temperature, electric current and system failure information being monitored and managing, ensure that battery core module is working properly, there is the advantage that extensibility is high, maintainability is high, reliability is high.
Description
Technical field
This utility model relates to battery management system technical field, manages particularly to a kind of extendible hybrid battery
System.
Background technology
Battery management system is one of important component part of battery core module, and it is for managing the voltage of battery modules, temperature
The information such as degree, electric current, and manage the charge and discharge process of battery core module and set outside controller, charger, instrument, UPS etc.
For carrying out communications exchange, in order to the most more suitably monitoring management battery status.
In power current core group, being limited to the impact of scheme cost and extensibility, BMS (battery management system) can divide
For two kinds of frameworks such as centralized BMS and distributed BMS.
For centralized BMS, it is with low cost, control is simple；But it exists, and poor expandability, maintainability are poor, safeguard
The problems such as cost is high, reliability is low.If such as customer demand change, the sampling string number for battery core is increased or decreased, and just needs
Customer demand is customized exploitation, causes the poor expandability of whole BMS scheme；Voltage sample, loop due to battery core
Electric current, circuit controls, strategy execution are highly integrated with arithmetic element, if causing time system has part of module dysfunction,
It is accomplished by safeguarding BMS is whole and changing, causes its maintainability poor and the relevant issues such as maintenance cost is high.And by
In system, all of wire harness all can converge to BMS unit, will improve the wiring complexity of system, particularly high-voltage wiring harness with
The problems such as the process of low voltage wiring harness and line-to-line crosstalk, can bring about the problem of reduction of system reliability with this.
Meanwhile, although distributed BMS can solve the problems referred to above, but there is with high costs, control pipe in distributed BMS
The problems such as reason is complicated, bring new problem to production management with maintenance etc..In distributed BMS, system architecture is according to system merit
The difference of energy can be divided into SCU (from control administrative unit), MCU (master control administrative unit), HVCU (high pressure administrative unit) and CSU
(current sensor unit) and other extensibility unit etc..According to the division of systemic-function, there is multiple module in system, often
The function that all can there is subelement in individual module repeats, and causes the too fat to move redundancy of systematic comparison, improves system cost and controls pipe
Reason complexity etc.；And aborning, owing to there is the problem of multiple SCU, SCU can be brought to write address challenge, carry
The problems such as high production management input.
Growing along with BMS industry, BMS technology day by day ripe, for exploitation input cost and the material of BMS
Cost is more and more sensitive, and extensibility, the stability requirement for BMS can be more and more higher.Particularly open at energy storage BMS, 48V
Stop the field such as BMS and automobile-used low pressure BMS.From the perspective of realizing BMS function, the most impassable technical threshold；
But from the perspective of actually used, the difficult point of BMS product concentrates on low cost, high reliability, enhanced scalability, height can be safeguarded
The aspects such as property, and centralized management system and distributed management system fail to well solve these problems.
Utility model content
Main purpose of the present utility model, can be by battery core for providing a kind of extendible hybrid battery management system
The voltage of module, temperature, electric current and fault message are monitored and manage, it is ensured that battery core module is working properly, have expansible
Property high, maintainability high, reliability is high advantage.
The utility model proposes a kind of extendible hybrid battery management system, be connected with battery core module, be used for managing
The use process of battery core module, including Main Processor Unit and expansible subelement；Described Main Processor Unit is expansible with described
Between subelement, and between adjacent expansible subelement, connected by daisy chain communication modes；Described expansible subelement is adopted
Collect the voltage of current battery core module, temperature, execution equalization function and fault diagnosis functions, and incited somebody to action by daisy chain communication modes
The battery core module information transmission of current management is to described Main Processor Unit；Described Main Processor Unit is according to the electricity of all battery core modules
Pressure, electric current, temperature and system failure information, run pre-set system strategy and carry out communication with external equipment.
Further, described Main Processor Unit includes sampling A/D chip, communication conversion chip, master control administrative unit and system
Base chip, described sampling A/D chip, communication conversion chip, master control administrative unit and system base chip are sequentially connected with, described
Sampling A/D chip connects, by sampling end, the communication that battery core module gathers the voltage of battery core module, temperature information is connected by daisy chain
Conversion chip transmission is to master control administrative unit, and described master control administrative unit passes through the communication module in system base chip by battery
System information transmissions is in external equipment.
Further, described sampling A/D chip is integrated with voltage sampling unit, A/D converter, temperature sampling unit,
Balance route unit, current sampling unit and communication converting unit.
Further, described sampling A/D chip is also integrated with built in diagnostics unit and voltage, temperature threshold alarm unit.
Further, it is connected by communication conversion chip between described sampling A/D chip with described master control administrative unit, described
Daisy chain communication modes is converted into SPI communication modes by communication conversion chip, and daisy chain communication terminal is connected with sampling A/D chip, and
SPI communication terminal is then connected with master control administrative unit.
Further, described master control administrative unit is integrated with multiple interfaces, for coordinating within battery management system
Each functional unit, drives interface including CAN communication interface, SPI communication interface, I2C communication interface, Sig signaling interface, I/O
And one or more in diagnosis interface；
Described master control administrative unit controls described insulating monitoring module, obtains current system insulation status；Described master control pipe
Reason unit is connected and controls rotation speed of the fan control, Rotating speed measring and fan power supply and controls by I/O interface；
Described master control administrative unit connects RTC+EEROM by I2C communication, stores system exception information, SOC value and carries
For real-time clock, record the information reference moment；Described master control administrative unit also includes being managed high-pressure side and controlling, and controls
Make the communication with external connecting function module and signal management.
Further, described system base chip it is integrated with power module, SPI interface, CAN communication module and guards the gate
Canis familiaris L. module.
Further, described Main Processor Unit also includes preliminary filling loop and contactor drive circuit, described preliminary filling loop
For battery modules precharge and being connected in parallel with contactor drive circuit, described contactor drive circuit connects and is controlled by described
Master control administrative unit.
Further, described expansible subelement connects the unit that is adjacent can basis by daisy chain communication modes
Specific design demand carries out multi-stage cascade between expansible subelement.
The extendible hybrid battery management system provided in this utility model, has the advantages that
In this utility model provide extendible hybrid battery management system, can to the voltage of all battery core modules,
Temperature, electric current, fault message are monitored and manage, and can be extended according to reality application；Main Processor Unit is with expansible
Between subelement, and between adjacent expansible subelement, being connected by daisy chain communication modes, expansible subelement can basis
Need to carry out multi-stage cascade, the reliability of communication can be strengthened, complexity and the wire harness cost of system wire harness can be reduced again, reduce
System cost, improves system robustness, improves extensibility, enhances the reliability of system communication；Main Processor Unit with can expand
Exhibition subelement all uses integrated chip solution, reduces the complexity of system, reduces the multiformity of system components and parts, improves reliability
And reduce hardware cost；The sampling of battery core module voltage completes based on sampling A/D chip with the sampling of loop current, it can be ensured that electricity
Core group voltage sample and loop current sample-synchronous；Between sampling A/D chip and master control administrative unit by communication conversion chip even
Tap into row isolation Communication processing, the impact on communication coherent signal of the ground loop under complex working condition can be reduced, improve system and lead to
The reliability of news；Main Processor Unit is also integrated with preliminary filling management, loop catalyst driven management, fans drive, real time fail
Storage management, Insulation monitoring, system strategy computing and execution, system fault diagnosis, high pressure management and with the leading to of external equipment
News management and one or more in signal management function, so can strengthen extensibility and the practicality of system.
Accompanying drawing explanation
Fig. 1 is extendible hybrid battery management system structure schematic diagram in this utility model one embodiment；
Fig. 2 is Main Processor Unit structural representation in this utility model one embodiment；
Fig. 3 is expansible sub-unit structure schematic diagram in this utility model one embodiment.
The realization of this utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this
Utility model.
With reference to Fig. 1, for extendible hybrid battery management system structure schematic diagram in this utility model one embodiment.
This utility model one embodiment proposes a kind of extendible hybrid battery management system, with multiple or one
Battery core module 40 connects, for monitoring the status information of battery core module 40 and managing the use process of battery core module 40.It comprises
There is a Main Processor Unit 10 and zero or more (multiple comprise one) expansible subelement 20.Expansible subelement 20
Quantity can increase and decrease according to actual service conditions, and chooses suitable number according to system configuration.Main Processor Unit 10 with
Between expansible subelement 20, or between expansible subelement 20 and expansible subelement 20, use daisy chain communication connection side
Formula.The voltage of battery core module, temperature and fault message are passed by above-mentioned expansible subelement 20 by the communication modes of daisy chain
Being passed in Main Processor Unit 10, Main Processor Unit 10 performs the relevant safety to battery core module according to logic strategy set in advance
Operation.
Above-mentioned extendible hybrid battery management system can select expanding of zero or more number according to reality application
Exhibition subelement 20 carries out cascade and connects use, and first expansible subelement 20 and Main Processor Unit 10 are by daisy chain transformator
Isolation communication modes connects, and passes sequentially through daisy chain transformer isolation communication modes between other expansible subelement 20 even
Connect.Daisy chain communication connected mode uses two-wire multiple twin differential communication, and communication mode is semiduplex mode, uses this kind of daisy chain
Transformer isolation communication modes, can strengthen Main Processor Unit 10 and expansible subelement 20, expansible subelement 20 and can expand
Between exhibition subelement 20, the reliability and stability of communication, can reduce again the complexity of system wire harness, reduces system cost, improves
System robustness；It is also equipped with the feature that extensibility is high, maintainability is high, reliability is high simultaneously.
Further, with reference to Fig. 3, for sub-unit structure schematic diagram expansible in this utility model one embodiment.
Above-mentioned expansible subelement 20 includes sampling A/D chip 100 and 200 two major parts of communication isolating transformer, on
State expansible subelement 20 and complete current battery core module 40 voltage, temperature acquisition and battery core equilibrium and chip diagnostic function；Adopt
Sample chip 100 connects battery core module 40 by chip sampling end, and is acquired voltage, the temperature of battery core module 40 and complete
The fault diagnosis of sampling A/D chip is become to operate with the electric voltage equalization of battery core module 40 etc..Sampling A/D chip 100 includes voltage sample list
Unit, A/D converter, temperature sampling unit, Balance route unit, current sampling unit, communication converting unit and chip
Diagnosing interior faults, owing to being not related to the collection of main circuit current in expansible subelement 20, therefore about current acquisition
Elementary Function will not be used.Expansible subelement 20 uses the chrysanthemum of communication isolation closet 200 by internal communication converting unit
Pattern chain is communicatively connected in adjacent expansible subelement 20 or Main Processor Unit 10.
Daisy chain communication physical connection uses two-wire multiple twin differential communication line, and communication mode is semiduplex mode.Use chrysanthemum
Pattern chain multiple twin differential communication, can strengthen the reliability of communication between plate level, can reduce again the complexity of rat tail, reduce system
System cost, raising system robustness；The most also there is extensibility height, maintainability height, reliability high.
Expansible subelement 20 passes through daisy chain communication modes by the battery core module information currently managed and failure of chip
Information is transferred to above-mentioned Main Processor Unit 10；Above-mentioned Main Processor Unit 10 is according to voltage, temperature and the system of all battery core modules
Fault message, runs pre-set system strategy and carries out communication with external equipment, in order to managing all battery core modules
Reason, meanwhile, expansible subelement 20 can also be completed battery core by the equalization instruction district that Main Processor Unit sends over
The electric voltage equalization operation of module 40.
Further, with reference to Fig. 2, for Main Processor Unit 10 structural representation in this utility model one embodiment.Wherein real
Line part is Main Processor Unit 10, and dotted portion is expansible subelement 20 expansion cascading schematic diagram.
Above-mentioned Main Processor Unit 10 includes sampling A/D chip 100, communication conversion chip 103, master control administrative unit 101 and is
System base chip 102；Above-mentioned Main Processor Unit 10 completes the communication management with expansible subelement 20 and policy control；Part electricity
The voltage of core group, temperature acquisition and balanced management；Loop current collection, daisy chain communication turn SPI Communication Control, preliminary filling pipe
Reason, loop catalyst driven management, fans drive, power supply managing, real time fail storage management, Insulation monitoring, system plan
Slightly computing operates with signal management etc. with execution, system fault diagnosis, high pressure management and the communication management with external equipment；On
State sampling A/D chip 100, communication conversion chip 103, master control administrative unit 101 and system base chip 102 to be sequentially connected with.
Sampling A/D chip 100 connects battery core module 40 by chip sampling end, adopts voltage, the temperature of battery core module 40
Collect and complete the fault diagnosis of sampling A/D chip and operate with the electric voltage equalization of battery core module 40 etc..Above-mentioned Main Processor Unit 10 is with upper
State and carry out communication connection by daisy chain Telecommunication Transformers isolation method between expansible subelement.Expansible in all cascades
Battery core module voltage, temperature and failure of chip information are transferred to Main Processor Unit 10 by communication conversion chip by subelement 20
In master control administrative unit 101 in.Sampling A/D chip 100 includes voltage sampling unit, A/D converter, temperature sampling list
Unit, Balance route unit, current sampling unit, communication converting unit, built in diagnostics unit and voltage, temperature threshold are reported to the police single
Unit, the sampling A/D chip 100 in Main Processor Unit 10 is additionally operable to gather the current information of major loop, uses and be processed as mode, can
To utilize the characteristic of integrated chip to ensure property while system voltage and current data, improve that system strategy performs efficiently with can
Lean on.Use integrated chip solution, both can improve the integrated level of system, reduce the complexity of system, hardware cost, it is possible to
To improve reliability and the vigorousness of system.
Further, the voltage sampling unit in sampling A/D chip 100 completes the collection of battery core module voltage, analog/digital conversion
Unit completes battery core module temperature collection or the collection of other voltage signals, Balance route unit perform voltage passively equalize,
Current acquisition unit is used for gathering main circuit current, simultaneously sampling A/D chip 100 inside and is also integrated with diagnosing interior faults unit.Adopt
Sample chip 100 is by its internal communication converting unit, by battery core module voltage, temperature, fault message with daisy chain communication modes
It is transferred in Main Processor Unit 10.
Daisy chain communication modes is converted into SPI communication modes, daisy chain communication terminal and sampling core by communication conversion chip 103
Sheet 100 connects, and centre utilizes transformator to isolate, and SPI communication terminal is then connected with master control administrative unit 101.Sampling A/D chip
The communication modes using transformer isolation between 100 and master control administrative unit 101 processes, and can avoid system in loop current relatively
The ground skew caused time big causes System on Chip/SoC to damage, it is also possible under reduction complex working condition loop and external environment condition to communication
Interference problem, improve system communication reliability.
System base chip 102 is integrated with power management, hardware watchdog, CAN communication module, SPI communication and hardware
The functions such as signal management.In the present embodiment, system uses system integrated chip 102 completion system power management, and by hard
Part house dog prevents software anomaly from main control unit carrying out hardware reset, and anti-locking system enters deadlock abnormality；CAN communication
Module is connected for the communication of the equipment such as Main Processor Unit 10 and controller, charger, instrument, UPS, and SPI communication then can guarantee that
The communication of system base chip 102 and master control administrative unit 101, it is ensured that main control unit 101 can normally monitoring system basic
The state of chip 102.Master control administrative unit 101 is by entering with external equipment with the CAN communication part in system base chip 102
Row communication, can be to information such as the associated voltage of electronic control unit real-time report battery core module 40, electric current, temperature, diagnosis.Outside
Equipment carries out indirect control and supervision pipeline further according to pre-set system strategy to battery management system, and by master control administrative unit
101 complete.
Further, above-mentioned master control administrative unit 101 has needed communication management and policy control, preliminary filling management, loop
The storage management of catalyst driven management, fans drive, real time fail, Insulation monitoring, system strategy computing and execution, the system failure
Diagnosis, high pressure management and with the communication management of external module and signal management.The present embodiment is integrated with substantial amounts of function mould
Block, is processed as both can taking into account the demand of major part client, it is also possible to strengthen system reliability and practicality.
In the present embodiment, master control administrative unit 101 is integrated with various interface, each for coordinate within battery management system
Individual functional unit, as CAN communication interface, SPI communication interface, I2C communication interface, Sig signaling interface, I/O drive interface and
One or more in diagnosis interface.
Above-mentioned master control administrative unit 101 controls above-mentioned insulating monitoring module, obtains current system insulation status in real time；Main place
When in reason unit, fan administrative section completion system battery core module relies on wind-cooling heat dissipating and heating, master control administrative unit 101 is passed through
I/O interface connects and controls rotation speed of the fan control, Rotating speed measring and fan power supply and controls
Further, above-mentioned master control administrative unit 101 connects RTC and EEROM by I2C communication.RTC provides real for system
Time clock information, for system fault message provide the reference time and for SOC estimation provide time base；EEROM is then used for
System failure information and the storage of SOC information.
Further, above-mentioned Main Processor Unit 10 also includes preliminary filling loop, contactor drive circuit.Preliminary filling loop is for real
The now pre-charge process before electric discharge catalyst Guan Bi, preliminary filling loop acceptor is controlled administrative unit 101 and is controlled.Preliminary filling loop is battery mould
Group precharge is also connected in parallel with contactor drive circuit, and meanwhile, master control administrative unit 101 can also drive by control contactor
Circuit (include relay control) in Fig. 2, when being in discharge mode and after preliminary filling completes, master control administrative unit 101 is by controlling
Contactor drive circuit controls electric discharge catalyst Guan Bi, and when system is not suitable for electric discharge, it drives electricity by control contactor again
Road controls electric discharge catalyst and disconnects.In like manner, in charging process, master control administrative unit 101 is by control contactor drive circuit
Control charging contactor Guan Bi and disconnect.In other application scenarios, main control unit 101 is driven by control contactor as required
Galvanic electricity road controls Guan Bi and the disconnection of associated contact device.
Main Processor Unit 10 in this utility model embodiment, need not be able to extend as an independent battery management system
Expansible subelement 20, can be used as and go here and there battery modules battery management systems in 14, by CAN line and hardware signal line with outer
Portion's control unit (such as ECU, electronic control unit) carries out normal communication, the associated voltage of real-time report battery core module, electric current,
The information such as temperature, diagnosis.The correlation behavior letter of the current battery core module 40 that external control unit outside provides according to Main Processor Unit 10
Breath, carries out related management control according to strategy set in advance, and informs that master control management module 101 performs by CAN line communication
Associative operation.
Main Processor Unit 10 in the present embodiment original state upon power-up of the system, by master control management module 101 to
Other modules send diagnostic instruction, carry out the fault self-checking diagnosis of system.If the system that is diagnosed to be exists abnormal, then report relevant different
Often information is to external control unit outside；If without exception, then normal information is reported to arrive external control unit outside.External control unit outside then basis
Strategy set in advance sends relevant process and instructs Main Processor Unit 10, and Main Processor Unit 10 then performs corresponding strategies.
In one embodiment, during vehicle starting, 48V start stop system can strengthen acceleration, in a short period of time
Internal combustion engine is accelerated to exceed idling speed by (usually 0.1s～0.2s), and then internal combustion engine starts igniting, and electromotor is without idling
Operating mode.
In 48V battery system, wire control technology, ride control arrangement, electronics heated type catalyst converter and electromagnetic valve
System, Active Suspensions and electric four-wheeled auxiliary drive can more efficient use, improve for vehicle structure provide bigger can
Can property.
In sum, manage system for the extendible hybrid battery provided in this utility model embodiment, can be to electricity
The information of core group 40 and management, can be extended according to reality application；Main Processor Unit 10 is single with expansible son
Between unit 20, and between adjacent expansible subelement 20, being connected by daisy chain communication modes, expansible subelement 20 can root
Carry out multi-stage cascade according to needs, the reliability of communication can be strengthened, complexity and the wire harness cost of system wire harness, fall can be reduced again
Low system cost, improves system robustness, enhances the reliability of system communication；Sampling A/D chip 100, master control administrative unit 101
And the most integrated a large amount of chips in system base chip 102, reduce the complexity of system, reduce the multiformity of system components and parts,
Improve reliability and reduce hardware cost；The sampling of battery core module 40 voltage is complete based on sampling A/D chip with the sampling of loop current
Become, it can be ensured that battery core module 40 voltage sample and loop current sample-synchronous；Sampling A/D chip 100 and master control administrative unit 101
Between by communication conversion chip 103 connect carry out isolate Communication processing, the ground loop under complex working condition can be reduced to communication
The impact of coherent signal, improves the reliability of system communication；Integrated insulating monitoring module, CAN communication in master control administrative unit 101
Interface, SPI interface, Sig interface, I/O interface and diagnosis interface, enhance extensibility and the practicality of system.
The foregoing is only preferred embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model,
Every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process conversion, or directly or indirectly transport
It is used in other relevant technical fields, is the most in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. an extendible hybrid battery management system, is connected with battery core module, for managing the use of battery core module
Journey, it is characterised in that include Main Processor Unit and expansible subelement；Described Main Processor Unit and described expansible subelement
Between, and between adjacent expansible subelement, connected by daisy chain communication modes；Described expansible subelement gathers current
The voltage of battery core module, temperature, execution equalization function and fault diagnosis functions, and will currently be managed by daisy chain communication modes
The battery core module information transmission of reason is to described Main Processor Unit；Described Main Processor Unit is according to the voltage of all battery core modules, electricity
Stream, temperature and system failure information, run pre-set system strategy and carry out communication with external equipment.
Extendible hybrid battery the most as claimed in claim 1 management system, it is characterised in that described Main Processor Unit bag
Include sampling A/D chip, communication conversion chip, master control administrative unit and system base chip, described sampling A/D chip, communication conversion core
Sheet, master control administrative unit and system base chip are sequentially connected with, and described sampling A/D chip connects battery core module by sampling end and adopts
The voltage of current collection core group, temperature information the communication conversion chip connected by daisy chain are transmitted to master control administrative unit, institute
State master control administrative unit by the communication module in system base chip by battery system information transmission to external equipment.
Extendible hybrid battery the most as claimed in claim 2 management system, it is characterised in that collect in described sampling A/D chip
Become to have voltage sampling unit, A/D converter, temperature sampling unit, Balance route unit, current sampling unit and communication
Converting unit.
Extendible hybrid battery the most as claimed in claim 3 management system, it is characterised in that in described sampling A/D chip also
It is integrated with built in diagnostics unit and voltage, temperature threshold alarm unit.
Extendible hybrid battery the most as claimed in claim 2 management system, it is characterised in that described sampling A/D chip and institute
Stating and connected by communication conversion chip between master control administrative unit, daisy chain communication modes is converted into by described communication conversion chip
SPI communication modes, daisy chain communication terminal is connected with sampling A/D chip, and SPI communication terminal is then connected with master control administrative unit.
6. the extendible hybrid battery management system as described in claim 2 or 5, it is characterised in that described master control manages
Be integrated with multiple interfaces on unit, for each functional unit coordinating within battery management system, including CAN communication interface,
One or more in SPI interface, Sig interface, I/O interface and diagnosis interface；
Being integrated with insulating monitoring module in described master control administrative unit, described master control administrative unit controls described insulating monitoring mould
Block, obtains current system insulation status；Described master control administrative unit is connected by I/O interface and controls rotation speed of the fan control, rotating speed
Detection and fan power supply control；
Described master control administrative unit connects RTC+EEROM by I2C communication, and storage system exception information, SOC value and offer are real
Shi Shizhong, records the information reference moment；Described master control administrative unit also includes being managed high-pressure side and controlling, and control with
The communication of external connecting function module and signal management.
Extendible hybrid battery the most as claimed in claim 2 management system, it is characterised in that described system base chip
On be integrated with power module, SPI interface, CAN communication module and watchdog module.
Extendible hybrid battery the most as claimed in claim 1 management system, it is characterised in that described expansible subelement
Including sampling end and communication terminal, battery core module is sampled by described sampling end, and by the daisy chain communication side of communication terminal
Formula carries out communication with the expansible subelement of next stage or Main Processor Unit.
Extendible hybrid battery the most as claimed in claim 2 management system, it is characterised in that described Main Processor Unit is also
Including preliminary filling loop and contactor drive circuit, described preliminary filling loop is battery modules precharge and contactor drive circuit
Being connected in parallel, described contactor drive circuit connects and is controlled by described master control administrative unit.
Extendible hybrid battery the most as claimed in claim 2 management system, it is characterised in that described expansible son is single
Unit connects, by daisy chain communication modes, the unit being adjacent and can carry out between expansible subelement according to specific design demand
Multi-stage cascade.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977558A (en) * | 2016-07-01 | 2016-09-28 | 欣旺达电动汽车电池有限公司 | Extensible hybrid battery management system |
| CN108172912A (en) * | 2017-11-30 | 2018-06-15 | 宁德时代新能源科技股份有限公司 | Electricity core sampling circuit |
| CN110048700A (en) * | 2018-01-15 | 2019-07-23 | 宁德时代新能源科技股份有限公司 | Reset control method of sampling circuit |
| CN110703105A (en) * | 2019-10-15 | 2020-01-17 | 宁波吉利汽车研究开发有限公司 | Battery management system |
| CN110967648A (en) * | 2019-02-26 | 2020-04-07 | 宁德时代新能源科技股份有限公司 | Sampling circuit and control method thereof |
| CN111722116A (en) * | 2019-03-22 | 2020-09-29 | 宁德时代新能源科技股份有限公司 | Battery management system and detection method thereof |
| CN112448045A (en) * | 2019-08-31 | 2021-03-05 | 比亚迪股份有限公司 | Battery management system and electric automobile |
-
2016
- 2016-07-01 CN CN201620688581.7U patent/CN205863328U/en not_active Withdrawn - After Issue
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977558B (en) * | 2016-07-01 | 2019-04-12 | 欣旺达电动汽车电池有限公司 | Expansible hybrid battery management system |
| CN105977558A (en) * | 2016-07-01 | 2016-09-28 | 欣旺达电动汽车电池有限公司 | Extensible hybrid battery management system |
| CN108172912B (en) * | 2017-11-30 | 2020-09-29 | 宁德时代新能源科技股份有限公司 | Electricity core sampling circuit |
| CN108172912A (en) * | 2017-11-30 | 2018-06-15 | 宁德时代新能源科技股份有限公司 | Electricity core sampling circuit |
| CN110048700B (en) * | 2018-01-15 | 2021-08-20 | 宁德时代新能源科技股份有限公司 | Reset control method of sampling circuit |
| CN110048700A (en) * | 2018-01-15 | 2019-07-23 | 宁德时代新能源科技股份有限公司 | Reset control method of sampling circuit |
| CN110967648A (en) * | 2019-02-26 | 2020-04-07 | 宁德时代新能源科技股份有限公司 | Sampling circuit and control method thereof |
| CN111722116A (en) * | 2019-03-22 | 2020-09-29 | 宁德时代新能源科技股份有限公司 | Battery management system and detection method thereof |
| CN111722116B (en) * | 2019-03-22 | 2021-10-01 | 宁德时代新能源科技股份有限公司 | Battery management system and detection method thereof |
| CN112448045A (en) * | 2019-08-31 | 2021-03-05 | 比亚迪股份有限公司 | Battery management system and electric automobile |
| CN112448045B (en) * | 2019-08-31 | 2021-11-12 | 比亚迪股份有限公司 | Battery management system and electric automobile |
| CN110703105A (en) * | 2019-10-15 | 2020-01-17 | 宁波吉利汽车研究开发有限公司 | Battery management system |
| CN110703105B (en) * | 2019-10-15 | 2021-12-28 | 宁波吉利汽车研究开发有限公司 | Battery management system |
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