CN104237803B - Batteries of electric automobile electrical property detection method based on battery Work condition analogue - Google Patents
Batteries of electric automobile electrical property detection method based on battery Work condition analogue Download PDFInfo
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- CN104237803B CN104237803B CN201410520049.XA CN201410520049A CN104237803B CN 104237803 B CN104237803 B CN 104237803B CN 201410520049 A CN201410520049 A CN 201410520049A CN 104237803 B CN104237803 B CN 104237803B
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Abstract
The invention discloses a kind of batteries of electric automobile electrical property detection method based on battery Work condition analogue, it is characterised in that:Comprise the following steps, 1）, battery operating mode service data is saved in by specified file by cell management system of electric automobile；2）, analysis battery operating mode service data file, the battery operating mode service data is processed into by the standardized data that the battery operating mode of certain electric automobile circuit runs according to battery detection equipment requirement；3）, by the working condition carry out cycle charge discharge electro-detection to being detected battery, record the detection data of tested battery simulation operating mode operation；4）, the tested battery simulation operating mode operation of analysis detection data, assess the cycle electric performance of battery.Detected for current electric automobile power battery electrical property and assess difficult problem, the invention provides a kind of method of the accurate check and evaluation electrokinetic cell electrical property under electric automobile line operation environment.
Description
Technical field
The present invention relates to electric automobile power battery detection field, a kind of electronic vapour of line operation is particularly designed
Car electrokinetic cell electrical property detection method.
Background technology
Electric car compares as a kind of following vehicles, the continual mileage of electric car, acceleration, climbing capacity etc.
Paid close attention to for everybody, the performance of electric automobile is heavily dependent on the performance of the battery as power.To battery electrical property
It is required that it is generally concentrated at, energy density, power characteristic, cycle life etc..The quality of electrokinetic cell system electrical property is directly
Vehicle dynamic property and economy are affected, and then influences the development and popularization of electric automobile.
Batteries of electric automobile detection is always electric vehicle engineering exploitation and the research emphasis in industrialization process, electronic vapour
Car battery detecting assessment technique will promote electric vehicle engineering progress, Demonstration And Extension and industry development.At present, national standard and row
Battery detecting generally use constant current or invariable power charge and discharge electro-detection battery electrical property in industry standard, drawing under constant conditions
Testing result be battery basic electric property energy, this electrical property embodied with battery during electric automobile actual motion has
Institute is different, and the basic electric property of battery well can not represent actual motion electrical property might as well.The battery of another aspect different manufacturers due to
Some differences in terms of the different electrical properties of material, technique and structure, some batteries electrical property under gentle road conditions is outstanding, some
Battery is more preferable in complex road condition electrical property, and the battery detecting of controlled condition does not have specific aim, can not reflect the road of these batteries
Condition adapts to electrical property.Newest battery detecting standard gives the operating mode detection curve of several references, but curve is fairly simple, electricity
It is few to flow change frequency, it is impossible to accurately reflect and represent the operating mode of actual electric automobile.Battery detecting needs the bar of actual motion
Part, but the batteries of electric automobile data acquisition of actual motion is relatively difficult, and from the electric automobile gathered data of actual motion
Need longer cycle.Therefore, the detection of current electric automobile power battery lacks specific aim in terms of detection method, and detection departs from
Actual battery service condition, testing result can not well reflect and assess battery road conditions adapt to electrical property, battery it is electrical
Energy assessment technique has much room for improvement.
The content of the invention
In order to solve electric automobile power battery electrical property detection in the prior art and assess difficult problem, the present invention provides
A kind of method of accurate check and evaluation electrokinetic cell electrical property under electric automobile line operation environment.
In order to solve the above problems, the technical solution used in the present invention is：
A kind of batteries of electric automobile electrical property detection method based on battery Work condition analogue, it is characterised in that:Including following
Step, 1), battery operating mode service data recording step：Electric automobile is monitored in real time by cell management system of electric automobile each
During line operation, the voltage and current output situation of battery, battery operating mode service data is saved in specified file；2)、
Battery operating mode Operational Data Analysis processing step：Battery operating mode service data file is analyzed, extraction electric automobile is in certain circuit
Battery operating mode service data during operation, and the battery operating mode service data is processed into certain according to battery detection equipment requirement
The standardized data of the battery operating mode operation of electric automobile circuit；3), simulated battery operating mode operation detection battery step：By this
The battery operating mode standardized data of electric automobile circuit imports battery detection equipment, after setting the Protection parameters of battery detecting, presses
The working condition carries out cycle charge discharge electro-detection to being detected battery, records the detection data of tested battery simulation operating mode operation；
4), analysis and evaluation battery performance step：The detection data of the tested battery simulation operating mode operation of analysis, obtain the internal resistance of battery, hold
Amount and the cycle characteristics of power attenuation, assess the cycle electric performance of this battery under the electric automobile working line.
A kind of foregoing batteries of electric automobile electrical property detection method based on battery Work condition analogue, it is characterised in that：
In step 1), the battery management system of electric automobile is all configured with voltage sensor for each piece of cell, and monitoring is every in real time
The voltage status of one piece of cell, and the output state total to vehicle battery is monitored, the operation of batteries of electric automobile operating mode
State is directed to vehicle battery, as long as total electric current, voltage and the power data of collection vehicle battery, are divided into gently by load weight
Carry, middle load and heavily loaded 3 kinds of situations are recorded, and be saved in specified file.
A kind of foregoing batteries of electric automobile electrical property detection method based on battery Work condition analogue, it is characterised in that：
In step 2), battery detection equipment is introduced directly into for convenience as battery detecting condition, it is necessary to be wanted according to battery detection equipment
Treatment of battery floor data is sought, exceptional value and improper value in data are removed, when batteries of electric automobile operating mode log data
Points n is simplified when being more than the maximum step number m that detection device can be set, it is necessary to carry out sampling to battery operating mode service data, is used
The average method of sampling is taken, take the maximum method of sampling or takes the minimum value method of sampling, the data points after sampling are less than or equal to inspection
The settable maximum step number of measurement equipment.
A kind of foregoing batteries of electric automobile electrical property detection method based on battery Work condition analogue, it is characterised in that：
In step 2), batteries of electric automobile operating mode log data points are n, and the settable maximum step number of battery detection equipment is m,
If n divided by m business is rounded more than 1, x=[n/m] is remembered, then need to being adopted in battery operating mode service data per (x+1) individual data
Sample is processed into 1 data point, and specifically (x+1) individual data are averaged, maximum or minimum value.
A kind of foregoing batteries of electric automobile electrical property detection method based on battery Work condition analogue, it is characterised in that：
In step 3), the standardized data of battery operating mode can be directly disposed as the discharging condition of tested batteries of electric automobile, i.e. battery is examined
Discharge condition of the measurement equipment simulated battery when the operating mode is run carries out the discharge examination same with the operating mode to being detected battery.
A kind of foregoing batteries of electric automobile electrical property detection method based on battery Work condition analogue, it is characterised in that：
In step 3), it is necessary to set the Protection parameters of battery detecting before discharge examination is done, after the completion of discharge examination, then by battery
National standard or company standard requirement are detected to battery standing, requirement is marked to electricity by battery detecting national standard or enterprise again after standing
Pond carries out standard charging, preserves the tested battery simulation operating mode service data and analyze data of battery detection equipment record.
A kind of foregoing batteries of electric automobile electrical property detection method based on battery Work condition analogue, it is characterised in that：
In step 3), cycle charge discharge electro-detection number is carried out no less than 50 times to being detected battery.
The beneficial effect that the present invention is reached：
Fixed line battery floor data is gathered from electric automobile actual motion, the floor data gathered has true
The characteristics of real, accurate and with strong points；, can be direct after being handled according to battery detection equipment requirement the battery floor data of collection
Battery detection equipment is imported as battery detecting condition, then sets circulation to carry out battery detecting, testing process is simple, easily behaviour
Make；This battery detection method simulation actual battery operating mode detection battery, can be that different road conditions select most suitable battery, detection knot
Fruit has high reference value.
Brief description of the drawings
Fig. 1 is the batteries of electric automobile electrical property detection method overall construction drawing based on battery Work condition analogue.
Fig. 2 is that battery operating mode service data records collecting flowchart figure.
Fig. 3 is battery operating mode Operational Data Analysis process chart.
Fig. 4 is untreated battery operating mode voltage and current datagram.
Fig. 5 is the battery operating mode voltage and current datagram after processing.
Fig. 6 is that simulated battery work condition state detects battery flow chart.
Fig. 7 is simulated battery operating mode Analysis of test results evaluation rubric figure.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating the present invention
Technical scheme, and can not be limited the scope of the invention with this.
As shown in figure 1, a kind of batteries of electric automobile electrical property detection method based on battery Work condition analogue of the present invention, bag
Include following step：
1), as shown in Fig. 2 battery operating mode service data recording step：Monitored by the battery management system of electric automobile
The voltage and current output situation of electric automobile electrokinetic cell in line operation, by the electric current, voltage and power of battery
Data are saved in specified file (can be exported by SD card or the modes such as GPRS is conveyed are realized).Be configured with same dynamical system and
The electric automobile of vehicle is run on fixed circuit, and the power output curve of its electrokinetic cell has certain rule, with road conditions
It is closely related with load situation.The road conditions of fixed circuit are substantially determined, the load feelings of electric automobile are pressed in terms of load
Condition can be divided into underloading, middle load and heavily loaded 3 kinds of situations, and Electric Transit load is relevant with bus station and time, so electric automobile
Battery operating mode by a large amount of monitoring datas, should extract the circuit typical underloading, it is middle load and severe duty data.
The battery management system of electric automobile is that each piece of cell is all configured with voltage sensor, is monitored in real time each
The voltage status of block cell, and the output state total to vehicle battery is monitored.Batteries of electric automobile operating mode runs shape
State is directed to vehicle battery, if collection vehicle battery total electric current, voltage and power data, by load weight be divided into underloading,
Middle load and heavily loaded 3 kinds of situations are recorded, and are saved in specified file.
2), as shown in figure 3, battery operating mode Operational Data Analysis processing step：Analyze battery operating mode operating file, extraction electricity
The battery operating mode service data that electrical automobile is run in certain circuit, and certain electronic vapour is processed into according to battery detection equipment requirement
The standardized data of the battery operating mode operation on fare road.Battery operating mode service data includes electric current, voltage and the power number of battery
According to the testing conditions that can be set according to battery detection equipment select power or electric current as detection battery condition, then battery
As long as the standardized data of detection preserves the power or current data of battery operating mode operation.
The battery management system of battery management system record electric automobile starts to all battery operating modes operation number of stopping
According to wherein starting and the data of the needs such as automobile off-duty, interference signal and wrong data removal comprising battery management system, figure
4 be the battery floor data of certain Electric Transit circuit, and data markers is included in the electric current and voltage data of original battery operating mode
The invalid datas such as mistake, duplicate data and abnormal data, Fig. 5 are the battery floor datas after processing.Have in one data file
The data of multiple operation are, it is necessary to which passage time and data law-analysing, extract one line of electric automobile from data file
The battery operating mode service data of road entire run.
After the battery operating mode service data for extracting electric automobile fixation circuit, battery detection equipment is introduced directly into for convenience
As battery detecting condition, it is necessary to requirement treatment of battery floor data according to battery detection equipment.The inspection of battery detection equipment
Survey condition step number is limited, and batteries of electric automobile operating mode log data points n is likely larger than the settable maximum of detection device
Step number m, then need to carry out sampling to battery operating mode service data to simplify, can use and take the average method of sampling, take maximum to adopt
Quadrat method takes the minimum value method of sampling, and the data points after sampling are less than or equal to the maximum step number that detection device can be set.Example
As 10000 steps can be set in battery detection equipment, battery operating mode service data has 20000 data points, then battery operating mode is run
It should be less than being equal to 10000 after data sampling.It is the battery detecting condition of standard after the completion of the processing of battery operating mode service data, can
It is introduced directly into battery detection equipment and is used for battery detecting.
Battery operating mode service data samples compressing method：
Batteries of electric automobile operating mode log data points are n, and the settable maximum step number of battery detection equipment is m,
If n divided by m business is rounded more than 1, x=[n/m] is remembered, then need to being adopted in battery operating mode service data per (x+1) individual data
Sample is processed into 1 data point, can specifically be averaged using (x+1) individual data, maximum or minimum value.
3), as shown in fig. 6, simulated battery operating mode operation detection battery step：By the battery work of this electric automobile circuit
Condition standardized data imports battery detection equipment, after setting the Protection parameters of battery detecting, enters by the operating mode to being detected battery
Row discharge examination, record the simulation operating mode service data of tested battery.Battery floor data is according to battery detecting in previous step
Equipment requirement is handled, and the standardized data of the battery operating mode can be directly disposed as the electric discharge bar of tested batteries of electric automobile
The discharge condition of part, i.e. battery detection equipment simulated battery when operating mode is run carries out the electric discharge same with operating mode to being detected battery
Test.The Protection parameters of battery detecting are set, and Protection parameters include the stagnation pressure protection, maximum current protection, monomer voltage of battery
Protection, discharge and recharge guardtime and high temperature protection.After the Protection parameters that battery detecting is set, enter by the operating mode to being detected battery
Row discharge examination, then by battery detecting national standard or company standard requirement to (such as 30 points for a period of time of battery standing
Clock).Standard charging is carried out to battery by battery detecting national standard or enterprise's mark requirement again after standing, preserves battery detection equipment record
Tested battery simulation operating mode service data and analyze data.
4) as shown in fig. 7, analysis and evaluation battery performance step：Battery passes through multiple loop test, analyzes tested battery mould
Intend the data of operating mode operation, obtain the characteristics such as charge efficiency, internal resistance, capacity and power attenuation and the uniformity of battery, assess
The cycle electric performance of this battery under the electric automobile working line.Circulating battery testing time is typically no less than 50 times, test
Number is more much more accurate, can determine cycle-index according to actual conditions.Record point is carried out to the battery detecting result of loop test
Analysis, using circulating battery testing time as X-axis, the unit for electrical property parameters such as charge efficiency, internal resistance, capacity, power, uniformity is respectively vertical
Coordinate, draw the unit for electrical property parameters comparison diagram of multiple battery.The electrical properties such as battery with two side terminals, internal resistance and capacity are presented just substantially
Correlation, battery consistency are deteriorated, and do not do battery voltage balanced, and with the increase of charge and discharge number, the capacity of battery can diminish, interior resistive
Greatly.By the electrical property comparative evaluation of multiple battery, the battery that combination property is optimal under the electric automobile working line is drawn, is entered
And most suitable battery is selected to provide reference for the electric automobile of the circuit.
General principle, the main features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (1)
- A kind of 1. batteries of electric automobile electrical property detection method based on battery Work condition analogue, it is characterised in that:Including following step Suddenly, 1）, battery operating mode service data recording step：Electric automobile is monitored in real time by cell management system of electric automobile each solid When alignment road is run, the voltage and current output situation of battery, battery operating mode service data is saved in specified file；2）, electricity Pond operating mode Operational Data Analysis processing step：Battery operating mode service data file is analyzed, extraction electric automobile is transported in certain circuit Battery operating mode service data during row, and the battery operating mode service data is processed into by certain electricity according to battery detection equipment requirement The standardized data of the battery operating mode operation of electrical automobile circuit；3）, simulated battery operating mode operation detection battery step：By this electricity The battery operating mode standardized data of electrical automobile circuit imports battery detection equipment, after setting the Protection parameters of battery detecting, by electricity The battery operating mode standardized data for the electric automobile circuit that pond detection device imports carries out cycle charge discharge electric-examination to being detected battery Survey, record the detection data of tested battery simulation operating mode operation；4）, analysis and evaluation battery performance step：The tested battery mould of analysis Intend the detection data of operating mode operation, obtain the cycle characteristics of the internal resistance of battery, capacity and power attenuation, assess in the electric automobile The cycle electric performance of this battery under working line；In step 1）In, the battery management system of electric automobile is all configured with voltage sensor for each piece of cell, in real time The voltage status of each piece of cell is monitored, and the output state total to vehicle battery is monitored, batteries of electric automobile work Condition running status is directed to vehicle battery, as long as total electric current, voltage and the power data of collection vehicle battery, by load weight point Recorded into underloading, middle load and heavily loaded 3 kinds of situations, and be saved in specified file；In step 2）In, battery detection equipment is introduced directly into for convenience as battery detecting condition, it is necessary to be set according to battery detecting Standby requirement treatment of battery floor data, exceptional value and improper value in data are removed, runs and remembers when batteries of electric automobile operating mode , it is necessary to carry out sampling essence to battery operating mode service data when record data points n is more than the maximum step number m that detection device can be set Letter, using taking the average method of sampling, taking the maximum method of sampling or taking the minimum value method of sampling, the data points after sampling are less than The maximum step number that can be set equal to detection device；Batteries of electric automobile operating mode log data points are n, battery detection equipment Settable maximum step number is m, if n divided by m business is rounded more than 1, remembers x=[n/m], then needs to run number to battery operating mode It is every in（x+1）Individual data sampling processing specifically will into 1 data point（x+1）Individual data are averaged, maximum or minimum Value；In step 3）In, the standardized data of battery operating mode can be directly disposed as the discharging condition of tested batteries of electric automobile, i.e., Discharge condition of the battery detection equipment simulated battery when the operating mode is run carries out the electric discharge same with the operating mode to being detected battery Detection；, it is necessary to set the Protection parameters of battery detecting before discharge examination is done, after the completion of discharge examination, then by battery detecting National standard or company standard requirement are to battery standing, again by battery detecting national standard or company standard requirement after standing Standard charging is carried out to battery, preserves the tested battery simulation operating mode service data and analyze data of battery detection equipment record, Cycle charge discharge electro-detection number is carried out no less than 50 times to being detected battery.
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| CN105572604A (en) * | 2016-01-27 | 2016-05-11 | 深圳创维数字技术有限公司 | Power supply testing method and power supply testing system |
| CN106154174A (en) * | 2016-06-27 | 2016-11-23 | 北京新能源汽车股份有限公司 | A kind of lithium ion battery energy test method and system |
| CN108828453B (en) * | 2018-06-29 | 2020-11-03 | 深圳市科列技术股份有限公司 | Method and device for acquiring charging data of power battery |
| CN108919134B (en) * | 2018-07-27 | 2020-01-14 | 安徽江淮汽车集团股份有限公司 | Battery monomer power evaluation method and system |
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