CN110376536A - Battery system SOH detection method, device, computer equipment and storage medium - Google Patents
Battery system SOH detection method, device, computer equipment and storage medium Download PDFInfo
- Publication number
- CN110376536A CN110376536A CN201910715308.7A CN201910715308A CN110376536A CN 110376536 A CN110376536 A CN 110376536A CN 201910715308 A CN201910715308 A CN 201910715308A CN 110376536 A CN110376536 A CN 110376536A
- Authority
- CN
- China
- Prior art keywords
- battery system
- capacity
- charging
- charge
- soh
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
- G01R31/388—Determining ampere-hour charge capacity or SoC involving voltage measurements
-
- 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]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
Abstract
This application involves a kind of battery system SOH detection methods, device, computer equipment and storage medium, method includes: to obtain battery state of charge before battery system charges, when battery system charging complete, temperature when obtaining this charging capacity and recording charging complete, battery state of charge before being charged according to this charging capacity and battery system, obtain the total charging capacity of battery system, according to preset charged capacity-thermometer, temperature corresponding initial charge capacity when obtaining charging complete, the total charging capacity of control cell system and initial charge capacity, obtain battery system SOH testing result.In whole process, the total charging capacity of battery system and initial charge capacity are successively accurately obtained, detects battery system SOH by the way of comparing charging capacity, the interference for avoiding electric discharge factor from detecting battery system SOH can accurately realize that battery system SOH is detected.
Description
Technical field
This application involves technical field of battery management, more particularly to a kind of battery system SOH (State Of Health,
Battery system health status) detection method, device, computer equipment and storage medium.
Background technique
Human society environmental disruption at present is serious, fossil energy is increasingly depleted, in order to improve current status, each state, the world
Family starts to carry out the manufacture and use of limitation fuel vehicle, electric car is greatly developed, in order to produce the more excellent new energy of performance
Source vehicle, so the design of power battery is with regard to particularly critical in electric car.
Battery system SOH parameter is a crucial data parameters in battery system, if SOH calculates inaccuracy, it will
Cause SOC (state of charge, battery system state-of-charge) error excessive, in fact it could happen that vehicle, which is shown, can also continue to
Traveling, but the battery but state out of power stopped using；Simultaneously also will affect car owner to new energy vehicle to vehicle whether
The judgement needed to be maintained, influences customer experience.But SOH is calculated, and is always the problem in lithium-ion-power cell field, reason
Be lithium ion battery self performance and capacity it is affected by environment caused by performance change greatly, can be because of temperature when using
Degree, itself current ratio size, the factors such as curent change frequency influence, but electric car uses ring in practical application
The severe degree in border is higher, so the calculating of BMS (Battery Management System, battery management system) will be caused
It is easy to appear error.
Currently used SOH calculation method has: 1, according to calculating the case where automotive discharge capacity, but the method can be by
In car owner's driving habit difference and influence the size of discharge capacity, to influence precision；2, according to electric discharge internal resistance size come
It calculates, but the problem of this mode, is the internal resistance if there is single string battery core and increases that whole internal resistance can't be affected, but
It is that battery capacity can but be had an impact, it is seen that conventional SOH detection cannot achieve accurate detection.
Summary of the invention
Based on this, it is necessary in view of the above technical problems, provide a kind of accurate battery system SOH detection method, device,
Computer equipment and storage medium.
A kind of battery system SOH detection method, which comprises
Obtain battery state of charge before battery system charges；
When battery system charging complete, temperature when obtaining this charging capacity and recording charging complete；
Battery state of charge before being charged according to this described charging capacity and the battery system, it is total to obtain battery system
Charging capacity；
According to preset charged capacity-thermometer, temperature corresponding initial charge capacity when obtaining the charging complete；
The total charging capacity of the battery system and the initial charge capacity are compared, battery system SOH testing result is obtained.
Battery state of charge includes: before the acquisition battery system charges in one of the embodiments,
Obtain temperature and OCV (Open Circuit Voltage, open-circuit voltage) before battery system charges；
The corresponding SOC-OCV curve of temperature before charging is searched, and according to the SOC-OCV curve and the OCV of lookup, is obtained
Battery state of charge before taking battery system to charge.
Preset charged capacity-the thermometer includes fast charge charging capacity-thermometer and slow in one of the embodiments,
Fill charging capacity-thermometer；
It is described according to preset charged capacity-thermometer, temperature corresponding initial charge capacity when obtaining the charging complete
Before, further includes:
Standard fast charge is carried out in preset temperature section to standard battery cell, and records and temperature spot is arranged with preset temperature step-length
Corresponding charging capacitor, obtains fast charge charging capacity-thermometer；
Standard trickle charge is carried out in preset temperature section to standard battery cell, and records and temperature spot is arranged with preset temperature step-length
Corresponding charging capacitor, obtains trickle charge charging capacity-thermometer.
It is described according to preset charged capacity-thermometer in one of the embodiments, temperature when obtaining the charging complete
Corresponding initial charge capacity includes:
Read accessed charging assembly transmitting charging signals type, the charging signals type include fast charge electric signal and
Trickle charge electric signal；
If fast charge electric signal, then according to the fast charge charging capacity-thermometer, temperature pair when obtaining the charging complete
The initial charge capacity answered；
If trickle charge electric signal, then according to the trickle charge charging capacity-thermometer, temperature pair when obtaining the charging complete
The initial charge capacity answered.
The comparison total charging capacity of battery system and the initial charge capacity in one of the embodiments,
Obtaining battery system SOH testing result includes:
Obtain the ratio of battery system total charging capacity and the initial charge capacity described in multiple groups；
The average value for calculating the ratio, using the average value as battery system SOH testing result.
The average value for calculating the ratio in one of the embodiments, using the average value as battery system
After SOH testing result, further includes:
When the jump of battery system SOH testing result is greater than preset first threshold value, the SOH before jumping is recorded, is monitored next
Moment corresponding SOH testing result jump；
When jump of the corresponding SOH testing result of subsequent time compared to the SOH before the jump is not less than default second
When threshold value, fault cues message is pushed, the preset first threshold value is greater than the default second threshold.
A kind of battery system SOH detection device, described device include:
State of charge obtains module, for obtaining battery state of charge before battery system charges；
Logging modle is used for temperature when obtaining this charging capacity and recording charging complete when battery system charging complete
Degree；
Total charging capacity obtains module, for battery before being charged according to this described charging capacity and the battery system
State of charge obtains the total charging capacity of battery system；
Initial charge capacity obtains module, is used for according to preset charged capacity-thermometer, temperature when obtaining the charging complete
Spend corresponding initial charge capacity；
Contrasting detection module obtains electricity for comparing the total charging capacity of the battery system and the initial charge capacity
Cell system SOH testing result.
In one of the embodiments, the state of charge obtain module be also used to obtain before battery system charges temperature with
OCV；The corresponding SOC-OCV curve of temperature before charging is searched, and according to the SOC-OCV curve and the OCV of lookup, obtains electricity
Battery state of charge before cell system charges.
A kind of computer equipment, including memory and processor, the memory are stored with computer program, the processing
Device is realized when executing the computer program such as the step of the above method.
A kind of computer readable storage medium, is stored thereon with computer program, and the computer program is held by processor
It realizes when row such as the step of above-mentioned method.
Above-mentioned battery system SOH detection method, device, computer equipment and storage medium, before obtaining battery system charging
Battery state of charge, when battery system charging complete, temperature when obtaining this charging capacity and recording charging complete, according to institute
This charging capacity and the preceding battery state of charge of battery system charging are stated, the total charging capacity of battery system is obtained, according to
Preset charged capacity-thermometer, temperature corresponding initial charge capacity when obtaining the charging complete, compares the battery system
Total charging capacity and the initial charge capacity, obtain battery system SOH testing result.It is successively accurate to obtain in whole process
The total charging capacity of battery system and initial charge capacity detect battery system SOH by the way of comparing charging capacity, avoid
The interference that electric discharge factor detects battery system SOH can accurately realize that battery system SOH is detected.
Detailed description of the invention
Fig. 1 is the applied environment figure of battery system SOH detection method in one embodiment；
Fig. 2 is the flow diagram of battery system SOH detection method in one embodiment；
Fig. 3 is the flow diagram of battery system SOH detection method in another embodiment；
Fig. 4 is the flow diagram of battery system SOH detection method in one of application example；
Fig. 5 is the structural block diagram of battery system SOH detection device in one embodiment；
Fig. 6 is the internal structure chart of computer equipment in one embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
Battery system SOH detection method provided by the present application, can be applied in application environment as shown in Figure 1.Wherein,
Mesuring battary system 102 is connect with detection terminal 104, and detection terminal 104 runs the application battery system SOH detection method, is obtained
Battery state of charge obtains this charging capacity and records charging when battery system charging complete before taking battery system to charge
Temperature when completion, battery state of charge before being charged according to this charging capacity and battery system obtain battery system and always charge
Capacity, according to preset charged capacity-thermometer, temperature corresponding initial charge capacity when obtaining charging complete, control cell system
It unites total charging capacity and initial charge capacity, obtains battery system SOH testing result, successively accurately obtain battery system and always charge
Capacity and initial charge capacity detect battery system SOH by the way of comparing charging capacity, avoid electric discharge factor to battery
The interference of system SOH detection can accurately realize that battery system SOH is detected.Mesuring battary system 102 can be single battery group
Or battery pack, it is also possible to the large-sized battery system being made of multiple battery cores or battery pack or battery pack, such as electric car
In battery system.
It, below will first for the scheme and its effect for further explaining in detail the application battery system SOH detection method
It is explained for its technical principle.
For SOH calculating, although discharge capacity is most can intuitively to show the data of battery current performance situation,
It is to be easy to be influenced and the influence of vehicle drive situations by external environment due to discharge capacity, so being calculated for data extremely easy
Error is caused, so battery status and data, Lai Jinhang SOH estimation can be explicitly indicated that by needing to find one kind.
By during the standard cycle charge-discharge test to laboratory cells data analysis, the decaying summation curve of standard charging and
The accumulation curve of standard electric discharge decaying, is almost overlapped, and in new energy practical application, and charging normal condition is all with fixation
The electric current of size carries out, and guarantee will not change because of size of current influences capacity, and lithium battery charging temperature must be controlled and be taken the photograph 0
Family name degree or more can fully demonstrate effective influence that temperature calculates SOH.So the application battery system SOH detection method
A kind of technical solution substantially battery system SOH detection method for being based primarily upon charging capacity.
In one embodiment, as shown in Fig. 2, providing a kind of battery system SOH detection method, it is applied in this way
It is illustrated for detection terminal in Fig. 1, comprising the following steps:
S100: battery state of charge before battery system charges is obtained.
Battery status before battery system charges can be directly acquired by battery state of charge detecting instrument or equipment, may be used also
To measure temperature and open-circuit voltage OCV before battery system charges, before calculating battery system charging according to temperature and open-circuit voltage OCV
Battery state of charge.
S200: when battery system charging complete, temperature when obtaining this charging capacity and recording charging complete.
It is persistently charged by external power supply to battery system, when charging is complete, records this charging capacity and fill
Temperature when electricity is completed.Specifically, when battery system carries out SOH detection in electric car, charging gun is inserted into electronic vapour
Vehicle charge port, electric car start to charge, when charging is complete, charging equipment can monitor, record this charging capacity and
Temperature data when charging complete.For other battery systems, can be obtained using the similar device of above-mentioned charging equipment, equipment
Temperature when this charging capacity and charging complete.More specifically, BMS can pass through current integration method meter in battery system
Calculate this charging capacity.
S300: battery state of charge before being charged according to this charging capacity and battery system obtains battery system and always fills
Capacitance.
Specifically, the total charging capacity of battery system=this charging capacity * 100%/(preceding battery of 1- battery system charging
State of charge).
S400: according to preset charged capacity-thermometer, temperature corresponding initial charge capacity when obtaining charging complete.
Charging capacity-thermometer is the mapping table constructed in advance, can specifically be measured based on historical empirical data
Or charging capacity and corresponding temperature are obtained, table is drawn according to these data to get charging capacity-thermometer is arrived.Into one
Step, there are two kinds of sides of standard fast charge (1C charging current) and standard trickle charge (0.1C charging current) involved in normal charge technology
Formula, Parameters variation is different during the charging process for double charging modes, and therefore, general preset charged capacity-thermometer includes fast
Fill charging capacity-thermometer and trickle charge charging capacitor table.Herein, can first identify this charging using standard fast charge or
For standard trickle charge, then corresponding charging capacity-thermometer is obtained, and then it is corresponding initial to obtain temperature when accurate charging complete
Charging capacity.
S500: the total charging capacity of control cell system and initial charge capacity obtain battery system SOH testing result.
SOH is equal to the ratio of battery system total charging capacity and initial charge capacity, i.e. SOH=battery system always charges appearance
Amount/initial charge capacity ratio.Further, single ratio can be used as SOH initial value, calculate multiple (at least three)
SOH initial value exports SOH exact value as final SOH exact value, obtains battery system SOH testing result.
Above-mentioned battery system SOH detection method obtains battery state of charge before battery system charges, when battery system charges
When completion, temperature when obtaining this charging capacity and recording charging complete charges according to this charging capacity and battery system
Preceding battery state of charge obtains the total charging capacity of battery system, according to preset charged capacity-thermometer, when obtaining charging complete
The corresponding initial charge capacity of temperature, the total charging capacity of control cell system and initial charge capacity obtain battery system SOH inspection
Survey result.In whole process, the total charging capacity of battery system and initial charge capacity are successively accurately obtained, is held using comparison charging
The mode of amount detects battery system SOH, and the interference for avoiding electric discharge factor from detecting battery system SOH can accurately realize electricity
Cell system SOH detection.
As shown in figure 3, step S100 includes: in one of the embodiments,
S120: temperature and OCV before battery system charges are obtained.
S140: searching temperature corresponding SOC-OCV curve before charging, and according to the SOC-OCV curve and OCV of lookup,
Obtain battery state of charge before battery system charges.
SOC-OCV curve is different under different temperatures, is based here on preparatory SOC-OCV collection of curves, before searching charging
The corresponding SOC-OCV curve of temperature obtains battery electricity before battery system charges further according to the SOC-OCV curve and OCV of lookup
Lotus state.Specifically, state of charge compensation calibration can often be preset in the full discharge platform in preset temperature section to standard battery cell
The OCV for standing 1H, obtains temperature-SOC-OCV corresponding relationship, and then obtains under different temperatures (temperature spot in preset temperature section
Value) SOC-OCV table.It in practical applications, can be quiet in -20 DEG C to the 55 DEG C complete every 5%SOC calibration of discharge platform to standard battery cell
The OCV for setting 1H obtains temperature-SOC-OCV corresponding relation data, and then obtains the SOC-OCV table of different temperatures.In the present embodiment
In, using battery state of charge before being charged based on temperature, OCV and SOC-OCV curve acquisition battery system, due to temperature and
OCV accurate using conventional instrument, easy can be measured, and battery charge before efficient and easy acquisition battery system charges may be implemented
State.
Preset charged capacity-thermometer includes that fast charge charging capacity-thermometer and trickle charge are filled in one of the embodiments,
Capacitance-thermometer；According to preset charged capacity-thermometer, when obtaining charging complete the corresponding initial charge capacity of temperature it
Before, further includes: standard fast charge is carried out in preset temperature section to standard battery cell, and records and temperature is arranged with preset temperature step-length
The corresponding charging capacitor of point, obtains fast charge charging capacity-thermometer；It is slow that standard is carried out in preset temperature section to standard battery cell
It fills, and records and charging capacitor is corresponded to preset temperature step-length setting temperature spot, obtain trickle charge charging capacity-thermometer.
Standard fast charge and standard trickle charge are based on industry standard standard, and general standard fast charge is 1C charging current, and trickle charge is
0.1C charging current.Parameter can there is some difference under the conditions of fast charge and trickle charge for battery system, therefore, in the present embodiment,
For battery system in fast charge environment or the difference to charge under trickle charge environment, corresponding charging capacity-thermometer is selected, more
Accurately obtain battery system initial charge capacity.
In one of the embodiments, according to preset charged capacity-thermometer, temperature is corresponding just when obtaining charging complete
Beginning charging capacity includes: to read the charging signals type for having accessed charging assembly transmitting, and charging signals type includes fast charge telecommunications
Number and trickle charge electric signal；If fast charge electric signal, then according to fast charge charging capacity-thermometer, temperature pair when obtaining charging complete
The initial charge capacity answered；If trickle charge electric signal, then according to trickle charge charging capacity-thermometer, temperature when obtaining charging complete
Corresponding initial charge capacity.
Fast charge electric signal and full charge signal are all the standard signals as professional standard setting, by taking electric vehicle as an example, when
Car owner's parking is ready for charging, and after charging pile or trickle charge charging gun insertion Vehicular charging mouth, BMS detects fast charge
CC2 (national standard fast charge plug detects signal) signal or trickle charge detect CC, CP (detection of national standard trickle charge plug) signal, if inspection
Measure CC2 signal, then according to fast charge charging capacity-thermometer, temperature corresponding initial charge capacity when obtaining charging complete；If
Detect CC, CP signal, then according to trickle charge charging capacity-thermometer, the corresponding initial charge of temperature is held when obtaining charging complete
Amount.
The total charging capacity of control cell system and initial charge capacity in one of the embodiments, obtain battery system
SOH testing result includes: the ratio for obtaining multiple groups battery system total charging capacity and initial charge capacity；Ratio calculated is averaged
Value, using average value as battery system SOH testing result.
In the present embodiment, final SOH exact value is obtained by the way of multi-group data averaged, is further mentioned
High battery system SOH testing result accuracy.Specifically, 3 SOH initial values can be calculated using three groups of data, then calculates 3
The average value of SOH initial value obtains SOH exact value, exports SOH exact value as battery system SOH testing result.
The average value of ratio calculated in one of the embodiments, using average value as battery system SOH testing result it
Afterwards, further includes: when the jump of battery system SOH testing result is greater than preset first threshold value, the SOH before jumping is recorded, under monitoring
The corresponding SOH testing result jump of one moment；When jump of the corresponding SOH testing result of subsequent time compared to the SOH before jump
When becoming not less than default second threshold, fault cues message is pushed, preset first threshold value is greater than default second threshold.
When detecting that current time SOH jump is greater than preset first threshold value, show that battery system exists compared with major break down wind
Danger, the SOH before record jump keep monitoring state, the corresponding SOH of monitoring subsequent time, when next subsequent time is corresponding
SOH jump do not restore, i.e., when the jump compared to the SOH before jump is not less than default second threshold, determine that battery system is deposited
In failure, fault cues message is pushed at this time to user.In practical applications, by taking battery system in electric car as an example, upper
After the average value to carload instrument for reporting 3 SOH initial values, detection SOH jump situation, when report SOH occur jump more than 5%,
And give the correct time on next SOH and do not restore, then whether reporting fault notice vehicle carries out after-sales service, give the correct time on next SOH extensive
Whether SOH hop value is less than 3% multiple specific judgment criteria can be the SOH relatively jump that judgement reports next time before, if being not less than,
Then reporting fault notice vehicle carries out after-sales service.I.e. when reporting SOH that jump occurs more than 5%, SOH before record jumpsA, protect
State is continued to monitor, when the SOH reported next timeBWith SOH before jumpAHop value be not less than 3% when, reporting fault notice
Vehicle carries out after-sales service.
It should be understood that although each step in the flow chart of Fig. 2-4 is successively shown according to the instruction of arrow,
These steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly stating otherwise herein, these steps
Execution there is no stringent sequences to limit, these steps can execute in other order.Moreover, at least one in Fig. 2-4
Part steps may include that perhaps these sub-steps of multiple stages or stage are not necessarily in synchronization to multiple sub-steps
Completion is executed, but can be executed at different times, the execution sequence in these sub-steps or stage is also not necessarily successively
It carries out, but can be at least part of the sub-step or stage of other steps or other steps in turn or alternately
It executes.
It below will be to electronic vapour further to explain in detail the technical solution of the application battery system SOH detection method
In vehicle for battery system SOH detection, and combine Fig. 5 that whole process is described in detail.
1, user's parking, preparation charging；
2, CC2 signal or CP/CC signal whether are detected, if it is not, then terminating；If so, entering step 3；
3, into SOH testing process；
4, temperature acquisition and OCV acquisition are carried out；
5, according to the temperature of acquisition and OCV, SOC-OCV table is inquired, obtains battery state of charge before battery system charges
SOC1；
6, it starts to charge, calculates this charging capacity CFill 1；
7, according to CIt fills total=CFill 1* 100%/(1-SOC1) obtain CIt fills totalIt is defined as CFill total X degrees Celsius；
8, charge cutoff temperature is acquired, fast charge capacitance meter or trickle charge capacitance meter are searched, obtains initially filling under Current Temperatures
Capacitance CFill just X degrees Celsius；
9, SOH is obtainedInitial value=CFill total X degrees Celsius/CFill just X degrees Celsius；
10、SOHInitial valueIt is stored in BMS memory；
11, add up SOH three timesInitial value, calculate SOH three timesInitial valueAverage value, report carload instrument；
12, judge SOHInitial valueAverage value whether jump greater than 5%, if it is not, then SOH detection terminate；If so, entering step
Rapid 13；
13, whether SOH hop value is less than 3% the SOH that judgement reports relatively is jumped next time before；If so, SOH detection knot
Beam；If it is not, then reporting fault notice vehicle carries out after-sales service.
As shown in figure 5, the application also provides a kind of battery system SOH detection device, device includes:
State of charge obtains module 100, for obtaining battery state of charge before battery system charges；
Logging modle 200 is used for when battery system charging complete, when obtaining this charging capacity and recording charging complete
Temperature；
Total charging capacity obtains module 300, for battery charge before being charged according to this charging capacity and battery system
State obtains the total charging capacity of battery system；
Initial charge capacity obtains module 400, is used for according to preset charged capacity-thermometer, temperature when obtaining charging complete
Spend corresponding initial charge capacity；
Contrasting detection module 500 is used for the total charging capacity of control cell system and initial charge capacity, obtains battery system
SOH testing result.
Above-mentioned battery system SOH detection device, state of charge obtain module 100 and obtain battery charge before battery system charges
State, when battery system charging complete, temperature when logging modle 200 obtains this charging capacity and records charging complete, always
Charging capacity obtains battery state of charge before module 300 charges according to this charging capacity and battery system, obtains battery system
It unites total charging capacity, initial charge capacity obtains module 400 according to preset charged capacity-thermometer, temperature when obtaining charging complete
Corresponding initial charge capacity, the total charging capacity of 500 control cell system of contrasting detection module and initial charge capacity are spent, is obtained
Battery system SOH testing result.In whole process, the total charging capacity of battery system and initial charge capacity are successively accurately obtained,
Battery system SOH is detected by the way of comparing charging capacity, the interference for avoiding electric discharge factor from detecting battery system SOH,
It can accurately realize that battery system SOH is detected.
In one of the embodiments, state of charge obtain module 100 be also used to obtain battery system charge before temperature with
OCV；The corresponding SOC-OCV curve of temperature before charging is searched, and according to the SOC-OCV curve and OCV of lookup, obtains battery system
Battery state of charge before system charges.
Preset charged capacity-thermometer includes that fast charge charging capacity-thermometer and trickle charge are filled in one of the embodiments,
Capacitance-thermometer；Initial charge capacity obtains module 400 and is also used to carry out standard in preset temperature section to standard battery cell
Fast charge, and record and charging capacitor is corresponded to preset temperature step-length setting temperature spot, obtain fast charge charging capacity-thermometer；To mark
Quasi- battery core carries out standard trickle charge in preset temperature section, and records with preset temperature step-length setting temperature spot to inductive charging electricity
Hold, obtains trickle charge charging capacity-thermometer.
Initial charge capacity acquisition module 400, which is also used to read, in one of the embodiments, has accessed charging assembly biography
The charging signals type passed, charging signals type include fast charge electric signal and trickle charge electric signal；If fast charge electric signal, then basis
Fast charge charging capacity-thermometer, temperature corresponding initial charge capacity when obtaining charging complete；If trickle charge electric signal, then root
According to trickle charge charging capacity-thermometer, temperature corresponding initial charge capacity when obtaining charging complete.
In one of the embodiments, contrasting detection module 500 for obtain the total charging capacity of multiple groups battery system and just
The ratio of beginning charging capacity；The average value of ratio calculated, using average value as battery system SOH testing result.
Above-mentioned battery system SOH detection device further includes feedback module in one of the embodiments, for working as battery system
When SOH testing result of uniting jump is greater than preset first threshold value, the SOH before jumping, the corresponding SOH detection of monitoring subsequent time are recorded
As a result it jumps；When jump of the corresponding SOH testing result of subsequent time compared to the SOH before jump is not less than default second threshold
When, fault cues message is pushed, preset first threshold value is greater than default second threshold.
Specific restriction about battery system SOH detection device may refer to above for the detection side battery system SOH
The restriction of method, details are not described herein.Modules in above-mentioned battery system SOH detection device can be fully or partially through soft
Part, hardware and combinations thereof are realized.Above-mentioned each module can be embedded in the form of hardware or independently of the processing in computer equipment
It in device, can also be stored in a software form in the memory in computer equipment, in order to which processor calls execution above each
The corresponding operation of a module.
In one embodiment, a kind of computer equipment is provided, which can be server, internal junction
Composition can be as shown in Figure 6.The computer equipment include by system bus connect processor, memory, network interface and
Database.Wherein, the processor of the computer equipment is for providing calculating and control ability.The memory packet of the computer equipment
Include non-volatile memory medium, built-in storage.The non-volatile memory medium is stored with operating system, computer program and data
Library.The built-in storage provides environment for the operation of operating system and computer program in non-volatile memory medium.The calculating
The database of machine equipment presets the data such as a variety of mapping tables for storing.The network interface of the computer equipment be used for it is outer
The terminal in portion passes through network connection communication.To realize a kind of battery system SOH detection when the computer program is executed by processor
Method.
It will be understood by those skilled in the art that structure shown in Fig. 6, only part relevant to application scheme is tied
The block diagram of structure does not constitute the restriction for the computer equipment being applied thereon to application scheme, specific computer equipment
It may include perhaps combining certain components or with different component layouts than more or fewer components as shown in the figure.
In one embodiment, a kind of computer equipment is provided, including memory, processor and storage are on a memory
And the computer program that can be run on a processor, processor perform the steps of when executing computer program
Obtain battery state of charge before battery system charges；
When battery system charging complete, temperature when obtaining this charging capacity and recording charging complete；
Battery state of charge before being charged according to this charging capacity and battery system obtains battery system and always charges appearance
Amount；
According to preset charged capacity-thermometer, temperature corresponding initial charge capacity when obtaining charging complete；
The total charging capacity of control cell system and initial charge capacity obtain battery system SOH testing result.
In one embodiment, it is also performed the steps of when processor executes computer program
Obtain temperature and OCV before battery system charges；Search temperature corresponding SOC-OCV curve before charging, and according to looking into
The SOC-OCV curve and OCV looked for obtain battery state of charge before battery system charges.
In one embodiment, it is also performed the steps of when processor executes computer program
Standard fast charge is carried out in preset temperature section to standard battery cell, and records and temperature spot is arranged with preset temperature step-length
Corresponding charging capacitor, obtains fast charge charging capacity-thermometer；Standard trickle charge is carried out in preset temperature section to standard battery cell,
And record and charging capacitor is corresponded to preset temperature step-length setting temperature spot, obtain trickle charge charging capacity-thermometer.
In one embodiment, it is also performed the steps of when processor executes computer program
The charging signals type for having accessed charging assembly transmitting is read, charging signals type includes fast charge electric signal and trickle charge
Electric signal；If fast charge electric signal, then according to fast charge charging capacity-thermometer, temperature is corresponding initial when obtaining charging complete
Charging capacity；If trickle charge electric signal, then according to trickle charge charging capacity-thermometer, temperature is corresponding just when obtaining charging complete
Beginning charging capacity.
In one embodiment, it is also performed the steps of when processor executes computer program
Obtain the ratio of multiple groups battery system total charging capacity and initial charge capacity；The average value of ratio calculated will be put down
Mean value is as battery system SOH testing result.
In one embodiment, it is also performed the steps of when processor executes computer program
When the jump of battery system SOH testing result is greater than preset first threshold value, the SOH before jumping is recorded, is monitored next
Moment corresponding SOH testing result jump；When jump of the corresponding SOH testing result of subsequent time compared to the SOH before jump
When not less than default second threshold, fault cues message is pushed, preset first threshold value is greater than default second threshold.
In one embodiment, a kind of computer readable storage medium is provided, computer program is stored thereon with, is calculated
Machine program performs the steps of when being executed by processor
Obtain battery state of charge before battery system charges；
When battery system charging complete, temperature when obtaining this charging capacity and recording charging complete；
Battery state of charge before being charged according to this charging capacity and battery system obtains battery system and always charges appearance
Amount；
According to preset charged capacity-thermometer, temperature corresponding initial charge capacity when obtaining charging complete；
The total charging capacity of control cell system and initial charge capacity obtain battery system SOH testing result.
In one embodiment, it is also performed the steps of when computer program is executed by processor
Obtain temperature and OCV before battery system charges；Search temperature corresponding SOC-OCV curve before charging, and according to looking into
The SOC-OCV curve and OCV looked for obtain battery state of charge before battery system charges.
In one embodiment, it is also performed the steps of when computer program is executed by processor
Standard fast charge is carried out in preset temperature section to standard battery cell, and records and temperature spot is arranged with preset temperature step-length
Corresponding charging capacitor, obtains fast charge charging capacity-thermometer；Standard trickle charge is carried out in preset temperature section to standard battery cell,
And record and charging capacitor is corresponded to preset temperature step-length setting temperature spot, obtain trickle charge charging capacity-thermometer.
In one embodiment, it is also performed the steps of when computer program is executed by processor
The charging signals type for having accessed charging assembly transmitting is read, charging signals type includes fast charge electric signal and trickle charge
Electric signal；If fast charge electric signal, then according to fast charge charging capacity-thermometer, temperature is corresponding initial when obtaining charging complete
Charging capacity；If trickle charge electric signal, then according to trickle charge charging capacity-thermometer, temperature is corresponding just when obtaining charging complete
Beginning charging capacity.
In one embodiment, it is also performed the steps of when computer program is executed by processor
Obtain the ratio of multiple groups battery system total charging capacity and initial charge capacity；The average value of ratio calculated will be put down
Mean value is as battery system SOH testing result.
In one embodiment, it is also performed the steps of when computer program is executed by processor
When the jump of battery system SOH testing result is greater than preset first threshold value, the SOH before jumping is recorded, is monitored next
Moment corresponding SOH testing result jump；When jump of the corresponding SOH testing result of subsequent time compared to the SOH before jump
When not less than default second threshold, fault cues message is pushed, preset first threshold value is greater than default second threshold.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Instruct relevant hardware to complete by computer program, computer program to can be stored in a non-volatile computer readable
It takes in storage medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, this Shen
Please provided by any reference used in each embodiment to memory, storage, database or other media, may each comprise
Non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM
(PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include
Random access memory (RAM) or external cache.By way of illustration and not limitation, RAM is available in many forms,
Such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhancing
Type SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM
(RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
Above embodiments only express the several embodiments of the application, and the description thereof is more specific and detailed, but can not
Therefore it is construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art,
Under the premise of not departing from the application design, various modifications and improvements can be made, these belong to the protection scope of the application.
Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of battery system SOH detection method, which comprises
Obtain battery state of charge before battery system charges；
When battery system charging complete, temperature when obtaining this charging capacity and recording charging complete；
Battery state of charge before being charged according to this described charging capacity and the battery system obtains battery system and always charges
Capacity；
According to preset charged capacity-thermometer, temperature corresponding initial charge capacity when obtaining the charging complete；
The total charging capacity of the battery system and the initial charge capacity are compared, battery system SOH testing result is obtained.
2. the preceding battery state of charge packet the method according to claim 1, wherein the acquisition battery system charges
It includes:
Obtain temperature and OCV before battery system charges；
The corresponding SOC-OCV curve of temperature before charging is searched, and according to the SOC-OCV curve and the OCV of lookup, obtains electricity
Battery state of charge before cell system charges.
3. the method according to claim 1, wherein preset charged capacity-thermometer includes fast charge charging
Capacity-thermometer and trickle charge charging capacity-thermometer；
It is described according to preset charged capacity-thermometer, when obtaining the charging complete before the corresponding initial charge capacity of temperature,
Further include:
Standard fast charge is carried out in preset temperature section to standard battery cell, and is recorded corresponding with preset temperature step-length setting temperature spot
Charging capacitor obtains fast charge charging capacity-thermometer；
Standard trickle charge is carried out in preset temperature section to standard battery cell, and is recorded corresponding with preset temperature step-length setting temperature spot
Charging capacitor obtains trickle charge charging capacity-thermometer.
4. according to the method described in claim 3, it is characterized in that, described according to preset charged capacity-thermometer, described in acquisition
The corresponding initial charge capacity of temperature includes: when charging complete
The charging signals type for having accessed charging assembly transmitting is read, the charging signals type includes fast charge electric signal and trickle charge
Electric signal；
If fast charge electric signal, then according to the fast charge charging capacity-thermometer, temperature is corresponding when obtaining the charging complete
Initial charge capacity；
If trickle charge electric signal, then according to the trickle charge charging capacity-thermometer, temperature is corresponding when obtaining the charging complete
Initial charge capacity.
5. the method according to claim 1, wherein the comparison total charging capacity of battery system with it is described
Initial charge capacity, obtaining battery system SOH testing result includes:
Obtain the ratio of battery system total charging capacity and the initial charge capacity described in multiple groups；
The average value for calculating the ratio, using the average value as battery system SOH testing result.
6., will be described average according to the method described in claim 5, it is characterized in that, the average value for calculating the ratio
Value is as after battery system SOH testing result, further includes:
When the jump of battery system SOH testing result is greater than preset first threshold value, the SOH before jumping is recorded, subsequent time is monitored
Corresponding SOH testing result jump；
When jump of the corresponding SOH testing result of subsequent time compared to the SOH before the jump is not less than default second threshold
When, fault cues message is pushed, the preset first threshold value is greater than the default second threshold.
7. a kind of battery system SOH detection device, which is characterized in that described device includes:
State of charge obtains module, for obtaining battery state of charge before battery system charges；
Logging modle is used for temperature when obtaining this charging capacity and recording charging complete when battery system charging complete；
Total charging capacity obtains module, for battery charge before being charged according to this described charging capacity and the battery system
State obtains the total charging capacity of battery system；
Initial charge capacity obtains module, is used for according to preset charged capacity-thermometer, temperature pair when obtaining the charging complete
The initial charge capacity answered；
Contrasting detection module obtains battery system for comparing the total charging capacity of the battery system and the initial charge capacity
System SOH testing result.
8. device according to claim 7, which is characterized in that the state of charge obtains module and is also used to obtain battery system
Temperature and OCV before system charges；Search temperature corresponding SOC-OCV curve before charging, and according to the SOC-OCV curve of lookup and
The OCV obtains battery state of charge before battery system charges.
9. a kind of computer equipment, including memory and processor, the memory are stored with computer program, feature exists
In the step of processor realizes any one of claims 1 to 6 the method when executing the computer program.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The step of method described in any one of claims 1 to 6 is realized when being executed by processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910715308.7A CN110376536B (en) | 2019-08-05 | 2019-08-05 | SOH detection method and device for battery system, computer equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910715308.7A CN110376536B (en) | 2019-08-05 | 2019-08-05 | SOH detection method and device for battery system, computer equipment and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110376536A true CN110376536A (en) | 2019-10-25 |
| CN110376536B CN110376536B (en) | 2021-11-05 |
Family
ID=68257946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910715308.7A Active CN110376536B (en) | 2019-08-05 | 2019-08-05 | SOH detection method and device for battery system, computer equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110376536B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110861533A (en) * | 2019-11-25 | 2020-03-06 | 安徽江淮汽车集团股份有限公司 | Electric vehicle SOH estimation method and device and storage medium |
| CN111123138A (en) * | 2019-12-24 | 2020-05-08 | 中航锂电（洛阳）有限公司 | SOH estimation method of battery pack |
| CN111426973A (en) * | 2020-04-26 | 2020-07-17 | 特瓦特能源科技有限公司 | Battery health state detection method and device |
| CN113625181A (en) * | 2021-06-23 | 2021-11-09 | 蓝谷智慧(北京)能源科技有限公司 | Battery system performance detection method in battery replacement station, electronic device and storage medium |
| CN113687248A (en) * | 2021-08-27 | 2021-11-23 | Oppo广东移动通信有限公司 | Battery capacity determination method and device, electronic equipment and storage medium |
| CN115877238A (en) * | 2022-12-06 | 2023-03-31 | 北汽福田汽车股份有限公司 | Battery capacity detection method and device, readable storage medium and electronic equipment |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545758A (en) * | 2012-01-16 | 2012-07-04 | 北京启明精华新技术有限公司 | Automobile power controller |
| CN102738525A (en) * | 2012-06-14 | 2012-10-17 | 沈阳中科正方新能源技术有限公司 | Battery management system of vehicle-mounted lithium power battery |
| CN104778111A (en) * | 2014-01-14 | 2015-07-15 | 深圳市腾讯计算机系统有限公司 | Alarm method and alarm device |
| CN105059130A (en) * | 2015-07-24 | 2015-11-18 | 中国科学院广州能源研究所 | Power battery repairing system for electric automobile |
| US20160223498A1 (en) * | 2015-01-30 | 2016-08-04 | The Trustees Of Princeton University | Apparatus and Method for Determining state of Change (SOC) and State of Health (SOH) of Electrical Cells |
| CN106291380A (en) * | 2016-08-16 | 2017-01-04 | 苏州协鑫集成科技工业应用研究院有限公司 | The appraisal procedure of cell degradation and device |
| CN106842065A (en) * | 2017-04-10 | 2017-06-13 | 北京新能源汽车股份有限公司 | The preparation method and device of a kind of cell health state |
| CN107690585A (en) * | 2015-04-16 | 2018-02-13 | 奥克斯能源有限公司 | For determining the health status of lithium-sulfur cell group and the method and apparatus of charged state |
| US20180149708A1 (en) * | 2016-11-30 | 2018-05-31 | Cadex Electronics Inc. | Battery state-of-health determination using multi-factor normalization |
| US20180188329A1 (en) * | 2016-12-29 | 2018-07-05 | Automotive Research & Testing Center | Device and method for estimating state-of-health of battery |
| CN108695692A (en) * | 2018-06-29 | 2018-10-23 | 桑顿新能源科技有限公司 | A kind of highly integrated anti-electromagnetic shielding high voltage distribution box |
| US20180328998A1 (en) * | 2017-05-11 | 2018-11-15 | Texas Instruments Incorporated | System and apparatus for battery internal short current detection under arbitrary load conditions |
| CN108828461A (en) * | 2018-09-25 | 2018-11-16 | 安徽江淮汽车集团股份有限公司 | Power battery SOH value evaluation method and system |
| CN108957337A (en) * | 2018-06-20 | 2018-12-07 | 东软集团股份有限公司 | Determination method, apparatus, storage medium and the electronic equipment of cell health state |
| CN109143078A (en) * | 2018-08-28 | 2019-01-04 | 中航锂电技术研究院有限公司 | A kind of identification pre-judging method of lithium iron phosphate dynamic battery " diving " failure |
| WO2019012357A1 (en) * | 2017-07-10 | 2019-01-17 | 3M Innovative Properties Company | State of health of partially discharged cells |
-
2019
- 2019-08-05 CN CN201910715308.7A patent/CN110376536B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545758A (en) * | 2012-01-16 | 2012-07-04 | 北京启明精华新技术有限公司 | Automobile power controller |
| CN102738525A (en) * | 2012-06-14 | 2012-10-17 | 沈阳中科正方新能源技术有限公司 | Battery management system of vehicle-mounted lithium power battery |
| CN104778111A (en) * | 2014-01-14 | 2015-07-15 | 深圳市腾讯计算机系统有限公司 | Alarm method and alarm device |
| US20160223498A1 (en) * | 2015-01-30 | 2016-08-04 | The Trustees Of Princeton University | Apparatus and Method for Determining state of Change (SOC) and State of Health (SOH) of Electrical Cells |
| CN107690585A (en) * | 2015-04-16 | 2018-02-13 | 奥克斯能源有限公司 | For determining the health status of lithium-sulfur cell group and the method and apparatus of charged state |
| CN105059130A (en) * | 2015-07-24 | 2015-11-18 | 中国科学院广州能源研究所 | Power battery repairing system for electric automobile |
| CN106291380A (en) * | 2016-08-16 | 2017-01-04 | 苏州协鑫集成科技工业应用研究院有限公司 | The appraisal procedure of cell degradation and device |
| US20180149708A1 (en) * | 2016-11-30 | 2018-05-31 | Cadex Electronics Inc. | Battery state-of-health determination using multi-factor normalization |
| US20180188329A1 (en) * | 2016-12-29 | 2018-07-05 | Automotive Research & Testing Center | Device and method for estimating state-of-health of battery |
| CN106842065A (en) * | 2017-04-10 | 2017-06-13 | 北京新能源汽车股份有限公司 | The preparation method and device of a kind of cell health state |
| US20180328998A1 (en) * | 2017-05-11 | 2018-11-15 | Texas Instruments Incorporated | System and apparatus for battery internal short current detection under arbitrary load conditions |
| WO2019012357A1 (en) * | 2017-07-10 | 2019-01-17 | 3M Innovative Properties Company | State of health of partially discharged cells |
| CN108957337A (en) * | 2018-06-20 | 2018-12-07 | 东软集团股份有限公司 | Determination method, apparatus, storage medium and the electronic equipment of cell health state |
| CN108695692A (en) * | 2018-06-29 | 2018-10-23 | 桑顿新能源科技有限公司 | A kind of highly integrated anti-electromagnetic shielding high voltage distribution box |
| CN109143078A (en) * | 2018-08-28 | 2019-01-04 | 中航锂电技术研究院有限公司 | A kind of identification pre-judging method of lithium iron phosphate dynamic battery " diving " failure |
| CN108828461A (en) * | 2018-09-25 | 2018-11-16 | 安徽江淮汽车集团股份有限公司 | Power battery SOH value evaluation method and system |
Non-Patent Citations (3)
| Title |
|---|
| YONGZHE KANG: "a multi-fault diagnostic method baased on an interleaved voltage measurement topology for series connected battery packs", 《JOURNAL OR POWER SOURCES》 * |
| 张剑楠: "锂离子动力电池健康状态估计算法研究", 《中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅱ辑》 * |
| 邵亦博 等: "锂离子电池荷电性能检测及健康状况分析", 《电测与仪表》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110861533A (en) * | 2019-11-25 | 2020-03-06 | 安徽江淮汽车集团股份有限公司 | Electric vehicle SOH estimation method and device and storage medium |
| CN110861533B (en) * | 2019-11-25 | 2021-08-27 | 安徽江淮汽车集团股份有限公司 | Electric vehicle SOH estimation method and device and storage medium |
| CN111123138A (en) * | 2019-12-24 | 2020-05-08 | 中航锂电（洛阳）有限公司 | SOH estimation method of battery pack |
| CN111123138B (en) * | 2019-12-24 | 2022-03-08 | 中创新航科技股份有限公司 | SOH estimation method of battery pack |
| CN111426973A (en) * | 2020-04-26 | 2020-07-17 | 特瓦特能源科技有限公司 | Battery health state detection method and device |
| CN113625181A (en) * | 2021-06-23 | 2021-11-09 | 蓝谷智慧(北京)能源科技有限公司 | Battery system performance detection method in battery replacement station, electronic device and storage medium |
| CN113625181B (en) * | 2021-06-23 | 2023-10-24 | 蓝谷智慧(北京)能源科技有限公司 | Battery system performance detection method in battery replacement station, electronic equipment and storage medium |
| CN113687248A (en) * | 2021-08-27 | 2021-11-23 | Oppo广东移动通信有限公司 | Battery capacity determination method and device, electronic equipment and storage medium |
| CN113687248B (en) * | 2021-08-27 | 2024-03-22 | Oppo广东移动通信有限公司 | Battery capacity determining method and device, electronic equipment and storage medium |
| CN115877238A (en) * | 2022-12-06 | 2023-03-31 | 北汽福田汽车股份有限公司 | Battery capacity detection method and device, readable storage medium and electronic equipment |
| CN115877238B (en) * | 2022-12-06 | 2023-11-07 | 北汽福田汽车股份有限公司 | Method and device for detecting battery capacity, readable storage medium and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110376536B (en) | 2021-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110376536A (en) | Battery system SOH detection method, device, computer equipment and storage medium | |
| CN104977537B (en) | The determination method of battery SOC and the battery management system for using this method | |
| EP1707974B1 (en) | Remaining capacity calculating device and method for electric power storage | |
| EP2321663B1 (en) | Apparatus and method for estimating state of health of battery based on battery voltage variation pattern | |
| CN108717164B (en) | SOC calibration method and system for battery | |
| CN103969587B (en) | A kind of hybrid vehicle electrokinetic cell SOC estimation method | |
| CN107991623A (en) | It is a kind of to consider temperature and the battery ampere-hour integration SOC methods of estimation of degree of aging | |
| CN105021996A (en) | Battery SOH (section of health) estimation method of energy storage power station BMS (battery management system) | |
| CN107742755B (en) | Electric car SOH modification method and device | |
| CN103217651B (en) | A kind of evaluation method of storage battery charge state and system | |
| CN103176135A (en) | Battery aging evaluation method | |
| CN102761141A (en) | Electric quantity correction and control method of lithium ion power storage battery | |
| CN110562097A (en) | New energy automobile charging remaining time estimation method | |
| CN111736083B (en) | Battery health state acquisition method and device and storage medium | |
| JP2002107427A (en) | Method for detecting residual capacity of secondary battery | |
| CN109411840A (en) | Lithium ion battery temperature checking method based on impedance phase angle | |
| Yang et al. | Characterization, analysis and modeling of an ultracapacitor | |
| CN103698716A (en) | Attenuation coefficient-based method for evaluating dischargeable electric quantity of series battery pack | |
| CN104335057A (en) | Method and device for determining the actual capacity of a battery | |
| Banaei et al. | Real time condition monitoring in Li-Ion batteries via battery impulse response | |
| CN110320477B (en) | SOC (State of Charge) calculation method and device of power battery pack and electric automobile | |
| CN104681851B (en) | A kind of vapour vehicle lithium-ion power battery method for group matching | |
| CN113777501A (en) | SOH estimation method of battery module | |
| CN110224461A (en) | Battery power limit method, apparatus, computer equipment and storage medium | |
| CN110988728B (en) | Method for rapidly diagnosing abnormal internal connection of lithium battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230912 Address after: No. 46, Qingfu Anshijia, Guoxiangqiao Village, Lanjiang Street, Yuyao City, Ningbo City, Zhejiang Province, 315402 Patentee after: Yuyao Haitai Trading Co.,Ltd. Address before: Room g0232, headquarters building, Changsha China Power Software Park, No. 39, Jianshan Road, Changsha high tech Development Zone, Changsha City, Hunan Province Patentee before: Thornton New Energy Technology (Changsha) Co.,Ltd. |