CN109991901A - A kind of the number circuit and method of battery management system - Google Patents
A kind of the number circuit and method of battery management system Download PDFInfo
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- CN109991901A CN109991901A CN201910276728.XA CN201910276728A CN109991901A CN 109991901 A CN109991901 A CN 109991901A CN 201910276728 A CN201910276728 A CN 201910276728A CN 109991901 A CN109991901 A CN 109991901A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000003321 amplification Effects 0.000 claims abstract description 41
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 41
- 238000005070 sampling Methods 0.000 claims abstract description 23
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000004048 modification Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0421—Multiprocessor system
-
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/22—Pc multi processor system
- G05B2219/2231—Master slave
-
- 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
-
- 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)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
The invention discloses the number circuits and method of a kind of battery management system, wherein the battery management system includes host and multiple slaves, the host is connect with each slave respectively, it is characterized by: the number circuit further includes that voltage compares amplification module, AD sampling module, the voltage contrasting amplified circuit is connect for generating configuration voltage, output end with the input terminal of AD sampling module；The AD sampling module, for the voltage of configuration to be converted to digital quantity, the input terminal connection of output end and slave by analog quantity, the slave obtains corresponding number data after digital quantity is handled based on the received.The present invention has the advantages that by way of hardware circuit, facilitate slave according to the voltage data of input port corresponding number data automatically, amplification factor is modified according to the magnification ratio difference of amplifying circuit, so that the input terminal voltage of slave is different, and then realizes number difference and modification.
Description
Technical field
The present invention relates to battery management system field, in particular to the number circuit and method of a kind of battery management system.
Background technique
Since what is generallyd use in battery management system is host-guest architecture, i.e., by the work from control module monitors system battery
Make state, and the information being collected into is dealt into host by way of controller local area network, by host to the battery being collected into
The information of management system is pocessed and manages.In actual battery management system, since the number of battery cells of system is relatively more,
System is needed using multiple slaves, this will effectively number each slave module.
In slave software, it will usually which slave number is stored in the band electric erazable programmable of single-chip microcontroller as a constant
In read-only memory (i.e. EEPROM), if it is desired to which slave software, again programming program must be modified by changing the value, this makes
Can be very inconvenient in actual production and debugging process, and as single-chip microcontroller repeats the increase of programming operation, single-chip microcontroller
Performance And Reliability will receive influence.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of number circuit of battery management system and sides
Method uses hardware mode to be numbered for the slave of battery management system.
To achieve the goals above, the technical solution adopted by the present invention are as follows: a kind of number circuit of battery management system, institute
Stating battery management system includes host and multiple slaves, and the host is connect with each slave respectively, and the number circuit also wraps
Include voltage and compare amplification module, AD sampling module, the voltage contrasting amplified circuit for generating configuration voltage, output end with
The input terminal of AD sampling module connects；The AD sampling module, for the voltage of configuration to be converted to digital quantity by analog quantity,
The connection of the input terminal of output end and slave, the slave obtain corresponding number data after digital quantity is handled based on the received.
The voltage contrasting amplified circuit includes reference voltage bleeder circuit, adjustable magnification amplifying circuit, inverting amplifier
Circuit, the reference voltage bleeder circuit output end are connect with adjustable magnification amplifying circuit, the adjustable magnification amplifying circuit
Output end is connect through direction amplifier circuit with AD sample circuit.
The reference voltage bleeder circuit includes power supply VCC, resistance R1, R2, and the power supply VCC is by resistance R1, R2 company
GND is met, output end is drawn between resistance R1, R2 and is connect with the input terminal of adjustable magnification amplifying circuit.
The adjustable magnification amplifying circuit includes operational amplifier A1, multiple amplification adjustment modules, the operational amplifier
Inverting input terminal by the output end of resistance R3 connection benchmark voltage, the non-inverting input terminal of operational amplifier passes through resistance
R4 ground connection, the serial capacitance C1 between the inverting input terminal and output end of operational amplifier, the amplification adjustment module are connected in parallel on
The both ends capacitor C1, the amplification adjustment module includes the switch K being cascaded and resistance R, the multiple amplification adjustment module
Between resistance it is different.
The inverting amplifier circuit includes operational amplifier A2, resistance R5, resistance R6, electronics R7, inductance C2, the fortune
The inverting input terminal for calculating amplifier A2 is connect by resistance R5 with the output end of adjustable magnification amplifying circuit, operational amplifier A2's
Non-inverting input terminal is grounded by resistance R6, serial capacitance C2 between the inverting input terminal and output end of the operational amplifier, institute
State the both ends capacitor C2 parallel resistance R7.
The number data that the slave will acquire are stored in EEPROM.
A kind of method for numbering serial of the number circuit based on battery management system, in slave number debugging process, starting is compiled
Number circuit selects the amplification factor of adjustable magnification amplifying circuit, and reference voltage is then divided electricity by adjustable magnification amplifying circuit
The output voltage on road obtains voltage number after then amplifying reversed amplification by inverting amplifier circuit according to setting multiple amplification
According to then slave reads voltage data by AD sampling module by input interface, and single-chip microcontroller is known according to the voltage data of reading
It Chu not number, then number is stored in EEPROM.
The present invention has the advantages that facilitating slave automatic according to the voltage data of input port by way of hardware circuit
Corresponding number data modify amplification factor according to the magnification ratio difference of amplifying circuit, so that the input terminal electricity of slave
Pressure is different, and then realizes number difference and modification；And slave does not need the programming for carrying out software every time, it is thus only necessary to write
Input terminal voltage and to be used multiple times and modify slave according to the software that voltage difference corresponds to different numbers corresponding for identification
Number, it is convenient to modify number data at any time in debugging process.
Detailed description of the invention
Below to each width attached drawing of description of the invention expression content and figure in label be briefly described:
Fig. 1 is the number circuit diagram of slave of the present invention；
Fig. 2 is the operation logic figure of number circuit of the invention.
Specific embodiment
A specific embodiment of the invention is made further detailed below against attached drawing by the description to optimum embodiment
Thin explanation.
As shown in Figure 1, a kind of number circuit of battery management system, battery management system uses client/server, by one
The mode that host is connect with multiple slaves, then host receives the battery cell monitoring data that slave transmits.This programme is exactly to solve
Slave numbers and modifies more troublesome, needs the defect of programming program again.Host is connect with each slave respectively, the number
Circuit includes that voltage compares amplification module, AD sampling module, and voltage contrasting amplified circuit is for generating configuration voltage, output end
It is connect with the input terminal of AD sampling module；AD sampling module, it is defeated for the voltage of configuration to be converted to digital quantity by analog quantity
The connection of the input terminal of outlet and slave, slave obtain corresponding number data after digital quantity is handled based on the received.
Slave generally uses chip microcontroller, and identification software is preset in single-chip microcontroller, defines input port, will number
Input port is defined, and for the voltage signal which is inputted as the voltage signal of numbering, single-chip microcontroller passes through reading
After the voltage signal of the port, corresponding number signal is converted voltage to by processing and is stored in EEPROM, single-chip microcontroller
Processing can using by voltage signal multiplied by proportionality coefficient appropriate to be converted into or in advance program compile and edit the data table of comparisons,
The table of comparisons is voltage-number table of comparisons, and slave program is inquired the corresponding number of table of comparisons acquisition by voltage and is stored in
In EEPROM.This mode is it is only necessary to change the voltage of single-chip microcontroller input port, then by the preparatory burned procedure identification of slave
Voltage is corresponding out numbers and stores, and does not need programming new procedures repeatedly, it is thus only necessary to will identify the corresponding volume of voltage
The program of number is in a programming before.And it is only necessary to adjust amplification coefficient for the change of voltage.Facilitate debugging
In the process, slave is numbered according to demand.Circuit specific structure includes:
Voltage contrasting amplified circuit includes reference voltage bleeder circuit, adjustable magnification amplifying circuit, inverting amplifier circuit,
Reference voltage bleeder circuit output end is connect with adjustable magnification amplifying circuit, the output end classical prescription of the adjustable magnification amplifying circuit
It is connect to amplifier circuit with AD sample circuit.
Reference voltage bleeder circuit includes power supply VCC, resistance R1, R2, and the power supply VCC is by resistance R1, R2 connection
GND draws output end between resistance R1, R2 and connect with the input terminal of adjustable magnification amplifying circuit.
Adjustable magnification amplifying circuit includes operational amplifier A1, multiple amplification adjustment modules, the operational amplifier it is anti-
Phase input terminal passes through the output end of resistance R3 connection benchmark voltage, and the non-inverting input terminal of operational amplifier is connect by resistance R4
Ground, the serial capacitance C1 between the inverting input terminal and output end of operational amplifier, the amplification adjustment module are connected in parallel on capacitor
The both ends C1, the amplification adjustment module include the switch K being cascaded and resistance R, between the multiple amplification adjustment module
Resistance it is different.
Inverting amplifier circuit includes operational amplifier A2, resistance R5, resistance R6, electronics R7, inductance C2, and the operation is put
The inverting input terminal of big device A2 is connect by resistance R5 with the output end of adjustable magnification amplifying circuit, the same phase of operational amplifier A2
Input terminal is grounded by resistance R6, serial capacitance C2, the electricity between the inverting input terminal and output end of the operational amplifier
Hold the both ends C2 parallel resistance R7.
The method for numbering serial of number circuit based on battery management system, comprising: in slave number debugging process, starting is compiled
Number circuit selects the amplification factor of adjustable magnification amplifying circuit, and reference voltage is then divided electricity by adjustable magnification amplifying circuit
The output voltage on road obtains voltage number after then amplifying reversed amplification by inverting amplifier circuit according to setting multiple amplification
According to then slave reads voltage data by AD sampling module by input interface, and single-chip microcontroller is known according to the voltage data of reading
It Chu not number, then number is stored in EEPROM.
As shown in Fig. 2, the method for numbering serial based on number circuit comprising step includes:
1, the program of slave is write in advance first, which includes slave operation main program and number reading program, master
Monitoring of the program for slave is run.And number reading program is then that pre-prepd, the application definition list is needed in the application
One of I/O port of piece machine is number voltage reading-port, after single-chip microcontroller reads voltage according to the mouth, is turned voltage by program
It changes into and numbers and be stored in EEPROM.Programmed logic include read voltage after, then by voltage multiplied by proportionality coefficient by
Voltage, which is processed into, to be numbered and is stored in EEPROM, or presets voltage-number table of comparisons, and single-chip microcontroller reads voltage data
Afterwards, it reads out number data according to the table to be then stored in EEPROM, to complete to number.
2, programming slave program, then starts slave.
3, according to number demand, it is closed one of them in the rearrangeable switch K1 ... Kn of adjustable magnification amplifying circuit, according to
The difference of closure switch, amplification factor is different, then the input port voltage of corresponding single-chip microcontroller is different.
4, start sampling A/D chip A2, then A2, which sample to voltage data, passes to single-chip microcontroller by interface.
5, single-chip microcontroller reads voltage data and is handled, and single-chip microcontroller carries out obtaining number data according to voltage, and operation is pre-
The program of first programming to go out the program numbered by voltage identification, is stored in EEPROM after rounding as number or according to pre-
The table of comparisons first set identifies that number is stored in EEPROM.May determine that whether number is correct before number terminates, if
Store mistake, then return renumber, this decision logic, which can be, to be set in advance in single-chip microcontroller, such as judge number whether be
Positive number, incorrect not to number if positive number if number, return renumbers, if correctly, being stored in EEPROM, completes number.
A kind of optional designing system with battery management system hardware number, which includes: that voltage compares amplification module,
Voltage is configured for generating；AD sampling module, for the voltage of configuration to be converted to digital quantity by analog quantity.Voltage compares amplification
Module includes resistance: R1, R2, R3, R4, R5, R6, R01 ..., R0n, amplifier: A1, A2, switch: K1 ..., Kn.Described
AD sampling module includes AD sampling A/D chip A3.
Voltage compares amplification module and is connected to GND, point of the VCC on R2 by the end resistance R1, R2 by reference voltage VCC
Pressure is connected to the cathode of A1 by resistance R3, and anode is connected to GND by resistance R4, between A1 cathode and output parallel connection K1 and
The train of R01, the train of K2 and R02 ... the train of Kn and R0n and capacitor C1, A1 output are by electricity
Resistance R5 is connected to the cathode of A2, and anode is connected to GND, parallel connection R6 and C2 between anode and output by resistance R6；The output of A2
Be connected to the VIN+ pin of A3, the VIN- of A3 is connected on GND, SCL pin and SDA pin be connected to single-chip microcontroller to pin
On.By selective closure switch K1 ..., Kn, generate different voltage, protect the digital quantity of conversion by AD sampling A/D chip
It is stored in single-chip microcontroller, completes the configuration numbered to slave.
As shown in Figure 1, comprising: voltage compares amplification module, AD sampling module.It includes resistance that voltage, which compares amplification module:
R1, R2, R3, R4, R5, R6, R01 ..., R0n, amplifier: A1, A2, switch: K1 ..., Kn.Voltage acquisition module is by closing
Combination switch K1 ..., Kn realize amplification to reference voltage voltage division signal, different switches can generate different amplifications, thus
So that the voltage of single-chip microcomputer input is different.Specifically, amplifier A1 is put according to setting as switch Ki (one in K1 to Kn)
Big coefficient completes the reversed amplification to dividing on resistance R2, by direction device A2 by the negative voltage of A1 coefficient according to a certain percentage
Be converted to positive voltage.
AD sampling module includes AD sampling A/D chip A3, and the output pin of A2 is connected with the VIN+ pin of A3, VIN- connection
Single-chip microcontroller is connected respectively to GND, pin SCL and SDA.In actual work according to the clock frequency of single-chip microcontroller setting to the defeated of A2
Voltage is converted into digital quantity out.Placement algorithm is as shown in Fig. 2, firstly, according to actual specific requirement closure switch Ki (K1 to Kn
In one), the voltage on R2 is amplified according to set proportion, it is preferred that the amplification factor of A2 be 1, input single-chip microcontroller
The value of digital quantity is less than 5V.Conversion values are turned into positive integer multiplied by the proper ratio factor after single-chip microcontroller is handled, and the value is protected
There are the configurations that slave number is completed in the EEPROM of single-chip microcontroller.
Obviously present invention specific implementation is not subject to the restrictions described above, as long as using method concept and skill of the invention
The improvement for the various unsubstantialities that art scheme carries out, it is within the scope of the present invention.
Claims (7)
1. a kind of number circuit of battery management system, the battery management system includes host and multiple slaves, the host
It being connect respectively with each slave, it is characterised in that: the number circuit further includes that voltage compares amplification module, AD sampling module,
The voltage contrasting amplified circuit is connect for generating configuration voltage, output end with the input terminal of AD sampling module；The AD
Sampling module, for the voltage of configuration to be converted to digital quantity by analog quantity, the input terminal connection of output end and slave is described
Slave obtains corresponding number data after digital quantity is handled based on the received.
2. a kind of number circuit of battery management system as described in claim 1, it is characterised in that: the voltage compares amplification
Circuit includes reference voltage bleeder circuit, adjustable magnification amplifying circuit, inverting amplifier circuit, the reference voltage bleeder circuit
Output end is connect with adjustable magnification amplifying circuit, and the output end of the adjustable magnification amplifying circuit is through direction amplifier circuit and AD
Sample circuit connection.
3. a kind of number circuit of battery management system as claimed in claim 2, it is characterised in that: the reference voltage partial pressure
Circuit includes power supply VCC, resistance R1, R2, and the power supply VCC connects GND by resistance R1, R2, draws between resistance R1, R2
Output end is connect with the input terminal of adjustable magnification amplifying circuit.
4. a kind of number circuit of battery management system as claimed in claim 2 or claim 3, it is characterised in that: the adjustable magnification
Amplifying circuit includes operational amplifier A1, multiple amplification adjustment modules, and the inverting input terminal of the operational amplifier passes through resistance
The output end of R3 connection benchmark voltage, the non-inverting input terminal of operational amplifier is grounded by resistance R4, in operational amplifier
Inverting input terminal and output end between serial capacitance C1, the amplification adjustment module is connected in parallel on the both ends capacitor C1, the amplification
Adjustment module includes the switch K being cascaded and resistance R, and the resistance between the multiple amplification adjustment module is different.
5. a kind of number circuit of battery management system as claimed in claim 2 or claim 3, it is characterised in that: the reverse phase amplification
Device circuit includes operational amplifier A2, resistance R5, resistance R6, electronics R7, inductance C2, the anti-phase input of the operational amplifier A2
End is connect by resistance R5 with the output end of adjustable magnification amplifying circuit, and the non-inverting input terminal of operational amplifier A2 passes through resistance R6
Ground connection, serial capacitance C2 between the inverting input terminal and output end of the operational amplifier, the both ends capacitor C2 parallel resistance
R7。
6. a kind of number circuit of battery management system as claimed in claim 2 or claim 3, it is characterised in that: the slave will obtain
The number data obtained are stored in EEPROM.
7. a kind of method for numbering serial of the number circuit based on any battery management system of claim 1-6, it is characterised in that:
In slave number debugging process, start number circuit, selects the amplification factor of adjustable magnification amplifying circuit, it then can by multiple
Adjust amplifying circuit that the output voltage of reference voltage bleeder circuit according to setting multiple amplification, is then passed through inverting amplifier circuit
Voltage data is obtained after the reversed amplification of amplification, then slave reads voltage data by AD sampling module by input interface, single
Piece machine identifies number according to the voltage data of reading, and then number is stored in EEPROM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910276728.XA CN109991901A (en) | 2019-04-08 | 2019-04-08 | A kind of the number circuit and method of battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910276728.XA CN109991901A (en) | 2019-04-08 | 2019-04-08 | A kind of the number circuit and method of battery management system |
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| CN109991901A true CN109991901A (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910276728.XA Pending CN109991901A (en) | 2019-04-08 | 2019-04-08 | A kind of the number circuit and method of battery management system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325028A (en) * | 2021-12-28 | 2022-04-12 | 北京博电新力电气股份有限公司 | Sampling circuit module |
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| CN2708249Y (en) * | 2004-07-14 | 2005-07-06 | 杨绍荃 | Impedance electronic number sensor |
| JP3948440B2 (en) * | 1998-06-23 | 2007-07-25 | 株式会社日立製作所 | Capacitor control device |
| CN102222961A (en) * | 2011-06-23 | 2011-10-19 | 深圳市英威腾电源有限公司 | Method and device for numbering power modules in modular uninterruptable power supply |
| CN206272578U (en) * | 2016-12-16 | 2017-06-20 | 深圳市帝迈生物技术有限公司 | A kind of dual adjustable gain amplifier circuit |
| CN107239047A (en) * | 2016-03-29 | 2017-10-10 | 华为技术有限公司 | Battery management system and the method for numbering serial to battery detection unit |
-
2019
- 2019-04-08 CN CN201910276728.XA patent/CN109991901A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3948440B2 (en) * | 1998-06-23 | 2007-07-25 | 株式会社日立製作所 | Capacitor control device |
| CN2708249Y (en) * | 2004-07-14 | 2005-07-06 | 杨绍荃 | Impedance electronic number sensor |
| CN102222961A (en) * | 2011-06-23 | 2011-10-19 | 深圳市英威腾电源有限公司 | Method and device for numbering power modules in modular uninterruptable power supply |
| CN107239047A (en) * | 2016-03-29 | 2017-10-10 | 华为技术有限公司 | Battery management system and the method for numbering serial to battery detection unit |
| CN206272578U (en) * | 2016-12-16 | 2017-06-20 | 深圳市帝迈生物技术有限公司 | A kind of dual adjustable gain amplifier circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325028A (en) * | 2021-12-28 | 2022-04-12 | 北京博电新力电气股份有限公司 | Sampling circuit module |
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Application publication date: 20190709 |