CN107884716A - A kind of method for assessing battery management system voltage acquisition precision - Google Patents
A kind of method for assessing battery management system voltage acquisition precision Download PDFInfo
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- CN107884716A CN107884716A CN201710923296.8A CN201710923296A CN107884716A CN 107884716 A CN107884716 A CN 107884716A CN 201710923296 A CN201710923296 A CN 201710923296A CN 107884716 A CN107884716 A CN 107884716A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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Abstract
The present invention provides a kind of method for assessing battery management system voltage acquisition precision, comprises the following steps：By the voltage acquisition module of battery management system be positioned in ambient temperature and moisture environment or other particular surroundings in, alternative particular surroundings includes hot environment, low temperature environment, hypobaric and vibration environment；Computer is connected with voltage analog source, and the program being installed in the computer can control the voltage analog source output quiescent voltage or dynamic electric voltage；The voltage acquisition module is connected with the voltage analog source, and the voltage acquisition module gathers the output voltage in the voltage analog source and collection voltages are fed back to the computer；Using the quiescent voltage or dynamic electric voltage of programme-control output as normal voltage, collection voltages are contrasted with corresponding normal voltage by the computer and ask for error.
Description
【Technical field】
The present invention relates to battery management system technical field, more particularly to a kind of assessment battery management system voltage acquisition essence
The method of degree.
【Background technology】
The basic function of battery management system can be divided into detection, management and the bulk of safeguard protection three, wherein, detection function bag
Include data acquisition and the state-detection of voltage, electric current and temperature.Data acquisition is the base that battery management system plays other functions
Plinth and premise, such as battery management system carry out SOC (State of Charge) state analysis, balanced management and heat management work(
Analyzed based on being all the data obtained by data acquisition.Therefore, the accuracy and speed of data acquisition can reflect electricity
The collection of the quality of pond management system, particularly voltage data, its acquisition precision is for cell overvoltage/undervoltage warning and guarantor
Shield, battery stagnation pressure overvoltage/undervoltage warning and protection, the startup of equalization function and closing etc. play key effect.
【The content of the invention】
Comprehensive and efficiency high assessment battery management system voltage acquisition precision is covered it is an object of the invention to provide a kind of
Method.
To achieve these goals, the present invention provides a kind of method for assessing battery management system voltage acquisition precision, bag
Include following steps：
By the voltage acquisition module of battery management system be positioned in ambient temperature and moisture environment or other particular surroundings in, can
Selective particular surroundings includes hot environment, low temperature environment, hypobaric and vibration environment；
Computer is connected with voltage analog source, and the program being installed in the computer can control the voltage
Simulation source exports quiescent voltage or dynamic electric voltage；
The voltage acquisition module is connected with the voltage analog source, and the voltage acquisition module gathers the electricity
Press the output voltage of simulation source and collection voltages are fed back to the computer；
Using the quiescent voltage of programme-control output or dynamic electric voltage as normal voltage, by the computer collection
Voltage is contrasted with corresponding normal voltage and asks for error.
In a preferred embodiment, the voltage acquisition module includes monomer voltage acquisition module and global voltage is adopted
Collect module；The voltage analog source includes monomer voltage simulation source and global voltage simulation source；The monomer voltage acquisition module
For gathering the quiescent voltage or dynamic electric voltage that the monomer voltage simulation source exports under the control of the computer；It is described
Global voltage acquisition module is used for gathering the quiescent voltage that the global voltage simulation source exports under the control of the computer
Or dynamic electric voltage.
In a preferred embodiment, any electricity that the monomer voltage simulation source can be in the range of simulation output 0-5V
Pressure value；The global voltage simulation source can be in the range of simulation output 0-800V any voltage value.
In a preferred embodiment, when assessing the static monomer voltage acquisition precision of battery management system,
It is installed on monomer voltage simulation source described in the programme-control in the computer and exports quiescent voltage；The monomer voltage gathers mould
Block gathers the output voltage of the monomer voltage simulation source and collection voltages is fed back to the computer；The computer is with journey
The quiescent voltage of sequence control output is asked for according to the following equation as normal voltage, and by collection voltages with corresponding normal voltage
Error：Error D1=(collection voltages V1- normal voltage V01)/5, and unit of error is %FS.
In a preferred embodiment, when assessing the static global voltage acquisition precision of battery management system,
It is installed on global voltage simulation source described in the programme-control in the computer and exports quiescent voltage；The global voltage gathers mould
Block gathers the output voltage of the global voltage simulation source and collection voltages is fed back to the computer；The computer is with journey
The quiescent voltage of sequence control output is asked for according to the following equation as normal voltage, and by collection voltages with corresponding normal voltage
Error：Error D2=(collection voltages V2- normal voltage V02)/800, and unit of error is %FS.
In a preferred embodiment, when assessing the dynamic monomer voltage acquisition precision of battery management system,
It is installed on monomer voltage simulation source described in the programme-control in the computer and exports dynamic electric voltage；The monomer voltage gathers mould
Block gathers the output voltage of the monomer voltage simulation source and collection voltages is fed back to the computer；The computer is with journey
The dynamic electric voltage of sequence control output is asked for according to the following equation as normal voltage, and by collection voltages with corresponding normal voltage
Error：Error D3=(collection voltages V3- normal voltage V03)/5, and unit of error is %FS.
In a preferred embodiment, when assessing the dynamic global voltage acquisition precision of battery management system,
It is installed on global voltage simulation source described in the programme-control in the computer and exports dynamic electric voltage；The global voltage gathers mould
Block gathers the output voltage of the global voltage simulation source and collection voltages is fed back to the computer；The computer is with journey
The dynamic electric voltage of sequence control output is asked for according to the following equation as normal voltage, and by collection voltages with corresponding normal voltage
Error：Error D4=(collection voltages V4- normal voltage V04)/800, and unit of error is %FS.
In a preferred embodiment, the static monomer voltage of battery management system can also be adopted by following steps
Collection precision is assessed：By the monomer voltage acquisition module be connected with multi-string battery and gather often go here and there battery monomer electricity
Pressure；The often output voltage of string battery is measured using six and half universal meters and gives the computer measurement Voltage Feedback；The meter
The monomer voltage of collection is asked for error by calculation machine according to the following equation with corresponding measurement voltage：Error D5=(collection voltages V5-
Measure voltage V05)/5, and unit of error is %FS.
In a preferred embodiment, the static global voltage of battery management system can also be adopted by following steps
Collection precision is assessed：The global voltage acquisition module is connected with multi-string battery and gathers the overall electricity of multi-string battery
Pressure；The output voltage of multi-string battery is measured using six and half universal meters and gives the computer measurement Voltage Feedback；The meter
The global voltage of collection is asked for error by calculation machine according to the following equation with corresponding measurement voltage：Error D6=(collection voltages V6-
Measure voltage V06)/800, and unit of error is %FS.
The method covering provided by the invention for assessing battery management system voltage acquisition precision comprehensively, can be respectively to battery
The static monomer voltage acquisition precision of management system, the static global voltage acquisition precision of battery management system, battery management system
The dynamic monomer voltage acquisition precision of system and the dynamic global voltage acquisition precision of battery management system are assessed, in addition,
Test environment is also divided into ambient temperature and moisture environment, hot environment, low temperature environment, hypobaric and vibration environment, to meet electricity
Voltage acquisition precision when being operated under the environment that pond management system is under normal natural environment and other conditions are harsh is commented
Estimate.
【Brief description of the drawings】
Fig. 1 is the principle schematic of the method for assessment battery management system voltage acquisition precision provided by the invention.
【Embodiment】
In order that the purpose of the present invention, technical scheme and advantageous effects become apparent from understanding, below in conjunction with accompanying drawing and
Embodiment, the present invention will be described in further detail.It should be appreciated that the specific implementation described in this specification
Mode is not intended to limit the present invention just for the sake of explaining the present invention.
Referring to Fig. 1, the present invention provides a kind of method for assessing battery management system voltage acquisition precision, can be used for commenting
Estimate static monomer voltage acquisition precision, static global voltage acquisition precision, the battery of battery management system of battery management system
The dynamic monomer voltage acquisition precision of management system and the dynamic global voltage acquisition precision of battery management system.
The method provided by the invention for assessing battery management system voltage acquisition precision, comprises the following steps：
By the voltage acquisition module of battery management system be positioned in ambient temperature and moisture environment or other particular surroundings in, can
Selective particular surroundings includes hot environment, low temperature environment, hypobaric and vibration environment；
Computer is connected with voltage analog source, and the program being installed in the computer can control the voltage
Simulation source exports quiescent voltage or dynamic electric voltage；
The voltage acquisition module is connected with the voltage analog source, and the voltage acquisition module gathers the electricity
Press the output voltage of simulation source and collection voltages are fed back to the computer；
Using the quiescent voltage of programme-control output or dynamic electric voltage as normal voltage, by the computer collection
Voltage is contrasted with corresponding normal voltage and asks for error.
Specifically, insulating box is used to provide hot environment or low temperature environment for the voltage acquisition module；Using low gas
Pressure case provides hypobaric for the voltage acquisition module；Shake table is used to provide oscillation ring for the voltage acquisition module
Border.
Further, the voltage acquisition module includes monomer voltage acquisition module and global voltage acquisition module.It is described
Voltage analog source includes monomer voltage simulation source and global voltage simulation source, and the monomer voltage simulation source being capable of simulation output 0-
Any voltage value in the range of 5V；The global voltage simulation source can be in the range of simulation output 0-800V any voltage value.
The monomer voltage acquisition module is used for gathering the static state that the monomer voltage simulation source exports under the control of the computer
Voltage or dynamic electric voltage.The global voltage acquisition module is used for gathering the global voltage simulation source in the computer
The quiescent voltage or dynamic electric voltage of the lower output of control.
When assessing the static monomer voltage acquisition precision of battery management system, the journey that is installed in the computer
Sequence controls the monomer voltage simulation source output quiescent voltage；The monomer voltage acquisition module gathers the monomer voltage simulation
The output voltage in source and collection voltages (V1) feed back to the computer；The Static Electro that the computer is exported with programme-control
Pressure is used as normal voltage (V01), and by collection voltages (V1) with corresponding normal voltage (V01) error is asked for according to the following equation：
Error D1=(collection voltages V1- normal voltage V01)/5, and unit of error is %FS.It should be understood that monomer voltage full scale
For 5V.
When assessing the static global voltage acquisition precision of battery management system, the journey that is installed in the computer
Sequence controls the global voltage simulation source output quiescent voltage；The global voltage acquisition module gathers the global voltage simulation
The output voltage in source and collection voltages (V2) feed back to the computer；The Static Electro that the computer is exported with programme-control
Pressure is used as normal voltage (V02), and by collection voltages (V2) with corresponding normal voltage (V02) error is asked for according to the following equation：
Error D2=(collection voltages V2- normal voltage V02)/800, and unit of error is %FS.It should be understood that global voltage is completely measured
Journey is 800V.
When assessing the dynamic monomer voltage acquisition precision of battery management system, the journey that is installed in the computer
Sequence controls the monomer voltage simulation source output dynamic electric voltage；The monomer voltage acquisition module gathers the monomer voltage simulation
The output voltage in source and collection voltages (V3) feed back to the computer；The dynamic electric that the computer is exported with programme-control
Pressure is used as normal voltage (V03), and by collection voltages (V3) with corresponding normal voltage (V03) error is asked for according to the following equation：
Error D3=(collection voltages V3- normal voltage V03)/5, and unit of error is %FS.
When assessing the dynamic global voltage acquisition precision of battery management system, the journey that is installed in the computer
Sequence controls the global voltage simulation source output dynamic electric voltage；The global voltage acquisition module gathers the global voltage simulation
The output voltage in source and collection voltages (V4) feed back to the computer；The dynamic electric that the computer is exported with programme-control
Pressure is used as normal voltage (V04), and by collection voltages (V4) with corresponding normal voltage (V04) error is asked for according to the following equation：
Error D4=(collection voltages V4- normal voltage V04)/800, and unit of error is %FS.
The a kind of of method as assessment battery management system voltage acquisition precision provided by the invention improves, and can also lead to
Following steps are crossed to assess the static monomer voltage acquisition precision of battery management system：By the monomer voltage acquisition module
Be connected with multi-string battery and gather often go here and there battery monomer voltage, i.e. collection voltages (V5)；Measured using six and half universal meters
Often go here and there battery output voltage and measurement voltage (V05) feed back to the computer；The computer is by the monomer voltage of collection
With corresponding measurement voltage (V05) error is asked for according to the following equation：Error D5=(collection voltages V5- measurement voltage V05)/5, and
Unit of error is %FS.
The a kind of of method as assessment battery management system voltage acquisition precision provided by the invention improves, and can also lead to
Following steps are crossed to assess the static global voltage acquisition precision of battery management system：By the global voltage acquisition module
It is connected with multi-string battery and gathers the global voltage of multi-string battery, i.e. collection voltages (V6)；Measured using six and half universal meters
The output voltage of multi-string battery and measurement voltage (V06) feed back to the computer；The computer is by the global voltage of collection
With corresponding measurement voltage (V06) error is asked for according to the following equation：Error D6=(collection voltages V6- measurement voltage V06)/800,
And unit of error is %FS.
In order to make it easy to understand, the voltage acquisition module is connected by gathering line with the voltage analog source, i.e., it is described
Monomer voltage acquisition module is connected by gathering line with the monomer voltage simulation source, the global voltage acquisition module passes through
Gathering line is connected with the global voltage simulation source.The voltage analog source is connected by CAN communication with the computer,
I.e. described monomer voltage simulation source is connected with the global voltage simulation source by CAN communication with the computer.It is described
Voltage acquisition module is connected by gathering line with multi-string battery, i.e., described monomer voltage acquisition module and the global voltage are adopted
Collection module is connected by gathering line with multi-string battery.Six and half universal meter measures more string electricity by voltage gear p-wire
The global voltage in pond and the often monomer voltage of string battery.Six and half universal meter is communicated by USB to be connected with the computer
Connect.
Further, to error D1、D2、D3、D4、D5And D6Carry out multiple/more wheel measurement and ask for mean error, Neng Gougeng
Comprehensively and accurately assess battery management system voltage acquisition precision.It should be understood that mean error is smaller, battery management system
Acquisition precision it is higher.
The method covering provided by the invention for assessing battery management system voltage acquisition precision comprehensively, can be respectively to battery
The static monomer voltage acquisition precision of management system, the static global voltage acquisition precision of battery management system, battery management system
The dynamic monomer voltage acquisition precision of system and the dynamic global voltage acquisition precision of battery management system are assessed, in addition,
Test environment is also divided into ambient temperature and moisture environment, hot environment, low temperature environment, hypobaric and vibration environment, to meet electricity
Voltage acquisition precision when being operated under the environment that pond management system is under normal natural environment and other conditions are harsh is commented
Estimate.
The method applicability of assessment battery management system voltage acquisition precision provided by the invention is extensive, slightly adjusts and may be used also
After current acquisition precision or temperature acquisition precision and voltage/current calibration and calibration for assessing battery management system
Precision.
The present invention is not restricted to described in specification and embodiment, therefore for the personnel of familiar field
Additional advantage and modification is easily achieved, therefore in the essence of the universal limited without departing substantially from claim and equivalency range
In the case of refreshing and scope, the present invention is not limited to specific details, representational equipment and shown here as the diagram with description
Example.
Claims (9)
- A kind of 1. method for assessing battery management system voltage acquisition precision, it is characterised in that comprise the following steps：By the voltage acquisition module of battery management system be positioned in ambient temperature and moisture environment or other particular surroundings in, be available for selecting The particular surroundings selected includes hot environment, low temperature environment, hypobaric and vibration environment；Computer is connected with voltage analog source, and the program being installed in the computer can control the voltage analog Source exports quiescent voltage or dynamic electric voltage；The voltage acquisition module is connected with the voltage analog source, and the voltage acquisition module gathers the voltage-mode Collection voltages are simultaneously fed back to the computer by the output voltage in plan source；Using the quiescent voltage or dynamic electric voltage of programme-control output as normal voltage, by the computer collection voltages Contrasted with corresponding normal voltage and ask for error.
- 2. the method for the assessment battery management system voltage acquisition precision described in claim 1, it is characterised in that the voltage is adopted Collection module includes monomer voltage acquisition module and global voltage acquisition module；The voltage analog source includes monomer voltage simulation source And global voltage simulation source；The monomer voltage acquisition module is used for gathering the monomer voltage simulation source in the computer The quiescent voltage or dynamic electric voltage of the lower output of control；The global voltage acquisition module is used for gathering the global voltage simulation The quiescent voltage or dynamic electric voltage that source exports under the control of the computer.
- 3. the method for the assessment battery management system voltage acquisition precision described in claim 2, it is characterised in that the monomer electricity Press any voltage value that simulation source can be in the range of simulation output 0-5V；The global voltage simulation source being capable of simulation output 0- Any voltage value in the range of 800V.
- 4. the method for the assessment battery management system voltage acquisition precision described in claim 3, it is characterised in that to battery management When the static monomer voltage acquisition precision of system is assessed, monomer voltage described in the programme-control in the computer is installed on Simulation source exports quiescent voltage；The monomer voltage acquisition module gathers the output voltage of the monomer voltage simulation source and handle is adopted Collecting voltage feeds back to the computer；The quiescent voltage that the computer is exported using programme-control will be adopted as normal voltage Collecting voltage asks for error according to the following equation with corresponding normal voltage：Error D1=(collection voltages V1- normal voltage V01)/5, And unit of error is %FS.
- 5. the method for the assessment battery management system voltage acquisition precision described in claim 3, it is characterised in that to battery management When the static global voltage acquisition precision of system is assessed, global voltage described in the programme-control in the computer is installed on Simulation source exports quiescent voltage；The global voltage acquisition module gathers the output voltage of the global voltage simulation source and handle is adopted Collecting voltage feeds back to the computer；The quiescent voltage that the computer is exported using programme-control will be adopted as normal voltage Collecting voltage asks for error according to the following equation with corresponding normal voltage：Error D2=(collection voltages V2- normal voltage V02)/ 800, and unit of error is %FS.
- 6. the method for the assessment battery management system voltage acquisition precision described in claim 3, it is characterised in that to battery management When the dynamic monomer voltage acquisition precision of system is assessed, monomer voltage described in the programme-control in the computer is installed on Simulation source exports dynamic electric voltage；The monomer voltage acquisition module gathers the output voltage of the monomer voltage simulation source and handle is adopted Collecting voltage feeds back to the computer；The dynamic electric voltage that the computer is exported using programme-control will be adopted as normal voltage Collecting voltage asks for error according to the following equation with corresponding normal voltage：Error D3=(collection voltages V3- normal voltage V03)/5, And unit of error is %FS.
- 7. the method for the assessment battery management system voltage acquisition precision described in claim 3, it is characterised in that to battery management When the dynamic global voltage acquisition precision of system is assessed, global voltage described in the programme-control in the computer is installed on Simulation source exports dynamic electric voltage；The global voltage acquisition module gathers the output voltage of the global voltage simulation source and handle is adopted Collecting voltage feeds back to the computer；The dynamic electric voltage that the computer is exported using programme-control will be adopted as normal voltage Collecting voltage asks for error according to the following equation with corresponding normal voltage：Error D4=(collection voltages V4- normal voltage V04)/ 800, and unit of error is %FS.
- 8. the method for the assessment battery management system voltage acquisition precision described in claim 4, it is characterised in that can also pass through Following steps are assessed the static monomer voltage acquisition precision of battery management system：By the monomer voltage acquisition module with Multi-string battery be connected and gather often go here and there battery monomer voltage；The output voltage of often string battery is measured using six and half universal meters And give the computer measurement Voltage Feedback；The computer by the monomer voltage of collection with it is corresponding measurement voltage under State formula and ask for error：Error D5=(collection voltages V5- measurement voltage V05)/5, and unit of error is %FS.
- 9. the method for the assessment battery management system voltage acquisition precision described in claim 5, it is characterised in that can also pass through Following steps are assessed the static global voltage acquisition precision of battery management system：By the global voltage acquisition module with Multi-string battery is connected and gathers the global voltage of multi-string battery；Using the output voltage of six and half universal meters measurement multi-string battery And give the computer measurement Voltage Feedback；The computer by the global voltage of collection with it is corresponding measurement voltage under State formula and ask for error：Error D6=(collection voltages V6- measurement voltage V06)/800, and unit of error is %FS.
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| CN201710923296.8A CN107884716A (en) | 2017-09-30 | 2017-09-30 | A kind of method for assessing battery management system voltage acquisition precision |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856484A (en) * | 2019-02-21 | 2019-06-07 | 东风柳州汽车有限公司 | Battery management system physical detection function test method |
| CN112731189A (en) * | 2021-01-26 | 2021-04-30 | 清华大学 | Battery pack simulation and BMS precision detection system |
| CN112946477A (en) * | 2021-02-04 | 2021-06-11 | 深圳市蜉飞科技有限公司 | Method, device, equipment and medium for determining remaining battery power of unmanned aerial vehicle device |
| CN114035091A (en) * | 2021-10-25 | 2022-02-11 | 智新控制系统有限公司 | BMS slave control module single voltage automatic calibration system and method |
-
2017
- 2017-09-30 CN CN201710923296.8A patent/CN107884716A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856484A (en) * | 2019-02-21 | 2019-06-07 | 东风柳州汽车有限公司 | Battery management system physical detection function test method |
| CN112731189A (en) * | 2021-01-26 | 2021-04-30 | 清华大学 | Battery pack simulation and BMS precision detection system |
| CN112946477A (en) * | 2021-02-04 | 2021-06-11 | 深圳市蜉飞科技有限公司 | Method, device, equipment and medium for determining remaining battery power of unmanned aerial vehicle device |
| CN112946477B (en) * | 2021-02-04 | 2022-03-08 | 深圳市蜉飞科技有限公司 | Method, device, equipment and medium for determining remaining battery power of unmanned aerial vehicle device |
| CN114035091A (en) * | 2021-10-25 | 2022-02-11 | 智新控制系统有限公司 | BMS slave control module single voltage automatic calibration system and method |
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