CN106842057A - Battery component life detecting method, detection service device and device - Google Patents
Battery component life detecting method, detection service device and device Download PDFInfo
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- CN106842057A CN106842057A CN201710094248.2A CN201710094248A CN106842057A CN 106842057 A CN106842057 A CN 106842057A CN 201710094248 A CN201710094248 A CN 201710094248A CN 106842057 A CN106842057 A CN 106842057A
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- Prior art keywords
- battery component
- discharge
- battery
- calculation cycle
- discharge capacity
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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]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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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]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
Abstract
The invention provides a kind of battery component life detecting method, the method is realized calculating the corresponding discharge capacity attenuation amplitude of each battery component according to the battery parameter of battery component by detection service device, and then the corresponding lifetime stage of respective battery component is determined according to the discharge capacity attenuation amplitude for calculating, realize battery and the accurate concentration life tests of battery pack realization used dispersion, the history battery parameter that effectively prevent battery component is lost and reduces the validity of the service life supervision of battery, the accuracy of battery component life-span calculating ensure that while the operand of battery component life-span calculating is greatly reduced, effectively reduce the cost of battery component, effectively increase the operation efficiency of the life-span calculating of battery component.
Description
Technical field
The present invention relates to a kind of battery protection technology, more particularly to a kind of battery component life detecting method, detection service
Device and device.
Background technology
Battery (for example, lithium battery, battery etc.) refers to the midget plant that can produce electric energy, and the performance parameter of battery is main
There are electromotive force, capacity, specific energy and resistance.Energy source is utilized the battery as, can be obtained with burning voltage, stabilization electricity
Stream, long-time stable is powered, and by the electric current of ectocine very little, and battery structure is simple, easy to carry, the electrically operated letter of charge and discharge
Easy row, is not influenceed by outside climatic and temperature, stable and reliable for performance, and the various aspects in modern society's life are played to be had
Great role, for example in recent years, the battery scope of application is further expanded to industry, communications and transportation, public safety, energy storage etc. more
Come more fields, such as instrument and meter, intercom, electric tool, electric bicycle, electrodynamic balance car, logistics and storage facilities,
Electric automobile, domestic or commercial or power station energy storage, UPS (uninterrupted power source) etc..It is well known that thing of the battery due to its own
Reason and/or chemical characteristic, it often fills once electricity and/or puts once electricity can all reduce the service life of its own.
In order to prevent battery because the aging various application risks for bringing, presently, there are some and battery life is detected
Detection scheme, or however, the detection scheme of existing battery life calculates complicated, or error is very big, it is impossible to meet right
The need for the battery that dispersion is used carries out centralized management.Therefore, the battery and battery pack for how using dispersion are realized accurate
Life tests are concentrated to have become a technical problem urgently to be resolved hurrily.
The content of the invention
In view of the foregoing, it is necessary to a kind of battery component life detecting method, detection service device and device are provided, with right
The battery and battery pack that dispersion is used realize accurate concentration life tests, and the history battery parameter for being prevented effectively from battery component is lost
Lose and reduce the validity of the service life supervision of battery, ensureing that the accuracy that the battery component life-span calculates is greatly decreased battery simultaneously
The operand that assembly life-span is calculated, effectively reduces the cost of battery component, effectively improves the computing of the life-span calculating of battery component
Efficiency.
A kind of battery component life detecting method, the method includes：
Detection service device after the battery parameter including discharge parameter for receiving battery component, in real time or timing according to
The corresponding discharge parameter of each described battery component for receiving, calculates each battery component putting in nearest preset times
The corresponding actual discharge capacity of electric calculating cycle and open-circuit voltage, and put with battery theory according to predetermined open-circuit voltage values
The mapping relations of capacitance, determine the corresponding theoretical discharge capacity of open-circuit voltage of each battery component；
Detection service device according to each described battery component each discharge calculation cycle actual discharge capacity and
Theoretical discharge capacity, calculates each described battery component in each described discharge calculation cycle corresponding first decay width respectively
Degree, and described in each described discharge calculation cycle corresponding first attenuation amplitude determining each according to each described battery component
The corresponding lifetime stage of battery component.
A kind of detection service device for detecting the battery component life-span, the detection service device includes：
Communication unit, for being connected with battery component or predetermined user terminal communication, to receive battery component
The battery parameter including discharge parameter；
Memory cell, for storage battery assembly life-span detection module, and the battery component life tests module operation
Data.
Processing unit, for calling and performs the battery component life tests module, to perform following steps：
After the battery parameter that communication unit receives battery component, in real time or regularly according to each the described electricity for receiving
The corresponding discharge parameter of pond component, the discharge calculation cycle for calculating each described battery component in nearest preset times is corresponding
Actual discharge capacity and open-circuit voltage, and closed according to the mapping of predetermined open-circuit voltage values and battery theoretical discharge capacity
System, determines the corresponding theoretical discharge capacity of open-circuit voltage of each battery component；
Actual discharge capacity and theoretical discharge according to each described battery component in each discharge calculation cycle hold
Amount, calculates each described battery component in each described discharge calculation cycle corresponding first attenuation amplitude respectively, and according to
Each described battery component determines each battery component in each described discharge calculation cycle corresponding first attenuation amplitude
Corresponding lifetime stage.
A kind of device for detecting the battery component life-span, the device includes：
Calculation of capacity submodule, for after the battery parameter including discharge parameter for receiving battery component, in real time or
Person's timing calculates each described battery component pre- recently according to the corresponding discharge parameter of each described battery component for receiving
If the discharge calculation cycle of number of times corresponding actual discharge capacity and open-circuit voltage, and according to predetermined open-circuit voltage values with
The mapping relations of battery theoretical discharge capacity, determine the corresponding theoretical discharge capacity of open-circuit voltage of each battery component；
Life-span determination sub-module, for according to each battery component actually putting in each discharge calculation cycle
Capacitance and theoretical discharge capacity, calculate each described battery component in each described discharge calculation cycle corresponding respectively
One attenuation amplitude, and determined in each described discharge calculation cycle corresponding first attenuation amplitude according to each described battery component
The corresponding lifetime stage of each described battery component.
Prior art is compared, the present invention realizes basis by the detection service device with battery component life tests module
The battery parameter of battery component calculates the corresponding discharge capacity attenuation amplitude of each battery component, and then according to the electric discharge for calculating
Capacity attenuation amplitude determines the corresponding lifetime stage of respective battery component, realizes battery and the battery pack realization used dispersion
Accurate to concentrate life tests, the history battery parameter that effectively prevent battery component is lost and reduces the service life supervision of battery
Validity, ensure that the accuracy of battery component life-span calculating while the computing of battery component life-span calculating is greatly reduced
Amount, effectively reduces the cost of battery component, effectively increases the operation efficiency of the life-span calculating of battery component.
Brief description of the drawings
Fig. 1 is the system architecture diagram of battery component life tests system of the present invention.
Fig. 2 is the hardware structure diagram of the embodiment of battery component 1 one in Fig. 1.
Fig. 3 is the hardware structure diagram of the embodiment of detection service device 2 one in Fig. 1.
Fig. 4 is the functional block diagram of the embodiment of battery component life tests module 21 1 in Fig. 3.
Fig. 5 is the implementing procedure figure of the embodiment of battery component life detecting method one of the present invention.
Fig. 6 is the implementing procedure figure of the embodiment of method one that battery component of the present invention reports battery parameter.
Specific embodiment
As shown in figure 1, being the system architecture diagram of battery component life tests system of the present invention.In the present embodiment, at this
In embodiment, the battery component life tests system includes detection service device 2, and at least one battery component 1 (is with three in figure
Example), and for the communication network 3 of data interaction between detection service device 2 and battery component 1.
It should be noted that in the present embodiment, communication network 3 can be mobile Internet, conventional internet, LAN
Or other any suitable data communication networks.
Detection service device 2, for by communication network 3 in real time or timing is from one or more predetermined battery packs
Part 1 receives the battery parameter for reporting, and according to each the corresponding battery parameter of battery component 1 for receiving, to described in each
Battery component 1 carries out life tests.
By the battery component life tests system, one or more battery component 1 can be long-range by the battery parameter detected
Report detection service device 2, detection service device 2 according to each the corresponding battery parameter of battery component 1 for receiving, to each
The battery component 1 carries out life-span calculating so that possess following technical benefits：Realize the life-span of long-range monitoring battery component 1
State；The history battery parameter for being prevented effectively from battery component is lost；Realize shifting to an earlier date the residual life of expected battery component 1, in advance
The replacing of battery component 1 is carried out in order；Battery component 1 operand of itself is greatly reduced, the concentration longevity of battery component 1 is realized
Life detection, effectively increases the safety in utilization of battery component 1；Effectively reduce the cost of battery component；It is easy to update battery
Assembly life-span inspection software, without updating battery component life tests software respectively on each device, only need to be in detection service
Updated in device 2.
In other embodiments of the invention, the battery parameter of battery component 1 can be given by user by user terminal uploads
Detection service device 2, battery component 1 can carry out direct data communication, core hair of the invention with detection service device 2
Bright point is：How the life-span of battery component 1 to be detected according to the battery parameter of battery component 1.
Below with reference to specific embodiment, the specific work(of each composition of the battery component life tests system is elaborated
Energy and design feature.
As shown in Fig. 2 being the hardware structure diagram of the embodiment of battery component 1 one in Fig. 1.In the present embodiment, the battery pack
Part 1 includes battery core 10, the parameter detecting unit 11 being connected with the signal of battery core 10, the micro- place being connected with the signal of parameter detecting unit 11
Reason unit 12, and the wireless communication unit 13 being connected with the signal of microprocessing unit 12.
The wireless communication unit 13 can be RF (Radio Freqency, radio frequency) module, WIFI module, bluetooth module,
Mobile comm unit that can be communicated to connect with mobile base station with SIM etc..
The parameter detecting unit 11 is used to detect battery parameter of the battery core 10 under charged state and/or discharge condition.
In the present embodiment, the battery parameter includes charge parameter and/or discharge parameter.
In the present embodiment, the charge parameter includes the charging current I in each charging calculating cycle0, each charging
T between at the beginning of calculating cycle01With end time t02, battery core 10 in each charging calculating cycle voltage V0, each charging
The temperature of the battery core 10 in calculating cycle (if the temperature of battery core 10 is inconsistent in a charging calculating cycle, can be averaged
Be worth as the battery core 10 in the charging calculating cycle temperature) and each charging calculating cycle in battery core 10 internal resistance R0；
In other embodiment of the invention, the charge parameter can not include the temperature of the battery core 10 in each charging calculating cycle.
In the present embodiment, the discharge parameter includes the discharge current I in each discharge calculation cycle1, each electric discharge
T between at the beginning of calculating cycle11With end time t12, battery core 10 in each discharge calculation cycle temperature (if an electric discharge
The temperature of battery core 10 is inconsistent in calculating cycle, then the temperature that can be averaged as the battery core 10 in the discharge calculation cycle
Degree) and each discharge calculation cycle in battery core 10 internal resistance R1；In other embodiments of the invention, the discharge parameter can
Not include the temperature of the battery core 10 in each discharge calculation cycle.
In the present embodiment, the parameter detecting unit 11 is included for detecting charging current I0And/or discharge current I1Electricity
(the current sample sensor can be current sampling resistor to stream sampling sensor, current sample IC be can also be, in this implementation
Example in, the current sample sensor uses current sampling resistor), for recording each charging calculating cycle and/or putting
Between at the beginning of electric calculating cycle and the end time timer, for detecting each charging calculating cycle and/or discharge calculation
The temperature sensor of the temperature of battery core 10 is (for example, NTC (Negative Temperature Coefficient, negative temperature in cycle
Coefficient) thermistor temperature sensor), for detecting each charging calculating cycle and/or in the discharge calculation cycle in battery core 10
The internal resistance test device of resistance；In other embodiments of the invention, the parameter detecting unit 11 can not be included for detecting each
Charging calculating cycle and/or in the discharge calculation cycle temperature of battery core 10 temperature sensor (for example, NTC (Negative
Temperature Coefficient, negative temperature coefficient) thermistor temperature sensor).
In the present embodiment, the microprocessing unit 12 is used for：
The charged state and/or discharge condition of detecting battery component 1 (judge the charging and discharging state of battery in real time or regularly
Process be：Judge by the level state at current sampling resistor two ends, if current sampling resistor two ends are positive level, it is determined that
Battery component 1 is in discharge condition, if current sampling resistor two ends are negative level, it is determined that battery component 1 is in charging shape
State)；
If battery component 1 is in charged state, by least under the current sample sensor detecting charged state
Charging current I in individual charging calculating cycle0(for example, detecting can be started when it is determined that battery component is in charged state, lead to
Overcurrent sampling sensor detects the charging current in a charging calculating cycle under the charged state；Can also be it is determined that electricity
Pond component starts detecting when being in charged state, the charging current detecting in a charging calculating cycle under the charged state
After finishing, immediately or interval Preset Time starts the detecting of charging current in next charging calculating cycle, until charging
State terminate or the charged state under predetermined number (for example, 3 times) charging calculating cycle in charging current detecting finish
Untill), by timer record at the beginning of each described charging calculating cycle between and the end time, detectd by temperature sensor
The temperature of battery core 10 in each described charging calculating cycle is surveyed, and each charging calculating cycle is detected by internal resistance test device
The internal resistance of interior battery core 10；
If being in discharge condition, by least one discharge calculation under the current sample sensor detecting discharge condition
Discharge current I in cycle1(for example, detecting can be started when it is determined that battery component is in discharge condition, by current sample
The charging current in a charging calculating cycle under the sensor detecting discharge condition；Can also be it is determined that battery component be in
Start detecting during discharge condition, after the discharge current detecting in a discharge calculation cycle under the discharge condition is finished, with
I.e. or interval Preset Time starts the detecting of discharge current in next discharge calculation cycle, until discharge condition terminates or
Untill charging current detecting under the person discharge condition in the discharge calculation cycle of predetermined number (for example, 3 times) is finished), pass through
Between at the beginning of each described discharge calculation cycle of timer record and the end time, detected described in each by temperature sensor
The temperature of battery core 10 in the discharge calculation cycle, and battery core 10 in each described discharge calculation cycle is detected by internal resistance test device
Internal resistance；
After the battery parameter that wireless communication unit 13 receives the transmission of detection service device reports instruction, the battery ginseng that will be detected
Number is sent to detection service device 2 by wireless communication unit 13, or, the battery parameter that will be detected in real time or regularly passes through nothing
Line communication unit 13 is sent to detection service device 2, or, receiving after the battery parameter that user sends reports instruction, will detect
Battery parameter be sent to safety control server, or, in real time or timing will detect battery parameter pass through radio communication
Unit 13 is sent to user terminal, and by user terminal uploads to detection service device 2.
It should be noted that：The timing of detection service device 2 is sent by communication network to each predetermined battery component 1
Battery parameter reports instruction, and battery parameter (in this case, the institute for reporting is received from each predetermined battery component 1
Stating battery component 1 needs configuration memory cell to store the battery parameter because the detecting time point of the battery parameter with
The transmission time point of the reporting parameters instruction may be inconsistent, it is necessary to be stored to the battery parameter before reporting)；
Or, each timing of predetermined battery component 1 sends the battery parameter of detecting to detection service device 2, and detection service device 2 exists
After having detected the transmission battery parameter of the battery component 1, battery parameter (such case that the battery component 1 sends is received
Under, the battery component 1 needs configuration memory cell to store the battery parameter, because the detecting time of the battery parameter
Point may be inconsistent, it is necessary to be stored to the battery parameter before transmitting with the transmission time point of the battery parameter)；
Or, the battery parameter of detecting is sent to inspection by each predetermined battery component 1 in real time after having battery parameter to detect
Server 2 is surveyed, detection service device 2 receives the battery component 1 after the transmission battery parameter of the battery component 1 has been detected
The battery parameter (in this case, the battery component 1 does not need configuration memory cell to store the battery parameter) of transmission；
Or, each predetermined battery component 1 is being received after the battery parameter that user sends reports instruction, the battery ginseng that will be detected
Number is sent to safety control server, and (in this case, the battery component 1 needs configuration memory cell to store the battery
Parameter because the transmission time point of detecting time point and the battery parameter of the battery parameter may it is inconsistent, it is necessary to
The battery parameter is stored before transmission).
As shown in figure 3, being the hardware structure diagram of the embodiment of detection service device 2 one in Fig. 1.In the present embodiment, the detection
Server 2 includes communication unit 23, memory cell 25, processing unit 20 and battery component life tests module 21.
The communication unit 23 is used to be connected with battery component 1 or predetermined user terminal communication through communication network 3,
To receive the battery parameter of battery component 1, the battery parameter includes discharge parameter.
The memory cell 25 is used to store the battery component life tests module 21, and the battery component life tests module
21 service data.
The processing unit 20 is used to call and perform the battery component life tests module 21, to perform following steps：
Communication unit 23 receive battery component 1 battery parameter (for example, the battery parameter include discharge parameter,
The discharge parameter includes the discharge current I in each discharge calculation cycle1, at the beginning of each discharge calculation cycle between t11With
End time t12, battery core 10 in each discharge calculation cycle internal resistance R1) and identity (for example, unique identifier ID)
Afterwards, in real time or regularly according to each the corresponding discharge parameter of battery component 1 for receiving, each battery pack is calculated
Part 1 nearest preset times (for example, 10 times) discharge calculation cycle corresponding actual discharge capacity and open-circuit voltage, and according to
Predetermined open-circuit voltage values and the mapping relations of battery theoretical discharge capacity, determine the open circuit electricity of each battery component
Press corresponding theoretical discharge capacity；
Actual discharge capacity and theoretical discharge according to each described battery component 1 in each discharge calculation cycle hold
Amount, calculates each described battery component 1 in each described discharge calculation cycle corresponding first attenuation amplitude respectively, and according to
Each described battery component 1 determines each battery component in each described discharge calculation cycle corresponding first attenuation amplitude
1 corresponding lifetime stage.
In the present embodiment, the calculating process of discharge calculation cycle corresponding actual discharge capacity C is following (in this hair
In bright other embodiment, discharge calculation cycle corresponding actual discharge capacity can also use other calculations,
This is not repeated)：
S1, the discharge current according to the discharge calculation cycle, time started and end time, and calculated by preset formula
Go out to refer to discharge capacity；
S2, according to predetermined battery core temperature and the mapping relations of the attenuation rate of discharge capacity of the cell, determine that this is put
The corresponding discharge capacity attenuation rate of battery core temperature of electric calculating cycle；
S3, the reference discharge capacity that will be calculated add the corresponding decay capacity of attenuation rate for determining, to obtain discharge calculation
Cycle corresponding actual discharge capacity C.
The preset formula is：Wherein, I represents the discharge current in discharge calculation cycle, and t11 is represented should
Between at the beginning of the discharge calculation cycle, t12 represents the end time in discharge calculation cycle.
It should be noted that：In other embodiments of the invention, above-mentioned steps S2 and S3 can not needed, can be direct
Security control will be carried out as actual discharge capacity with reference to discharge capacity, but can so reduce the accuracy of security control, easily
Error, the present embodiment, it is preferred to use above-mentioned steps S1, S2 and S3 calculate the actual discharge capacity C.
In the present embodiment, the calculating process of discharge calculation cycle corresponding first attenuation amplitude is as follows：
S4, battery core magnitude of voltage is calculated according to the discharge calculation cycle corresponding battery core internal resistance and discharge current；
S5, calculating battery core magnitude of voltage and predetermined load voltage values sum are corresponding to draw the discharge calculation cycle
Open-circuit voltage values, or, using the preset multiple (for example, 2 times) of battery core magnitude of voltage as the discharge calculation cycle corresponding open circuit
Magnitude of voltage；
S6, according to predetermined open-circuit voltage values and the mapping relations of battery theoretical discharge capacity, determine described opening
The corresponding battery theoretical discharge capacity of road magnitude of voltage；
If S7, actual discharge capacity are less than theoretical discharge capacity, discharge calculation cycle corresponding actual discharge is calculated
First attenuation amplitude of capacity relative theory discharge capacity.
In other embodiments of the invention, corresponding actual discharge capacity of described calculating discharge calculation cycle is relative manages
By discharge capacity the first attenuation amplitude the step of can at once be performed after battery theoretical discharge capacity is determined, without thing
First judge that whether actual discharge capacity, less than theoretical discharge capacity, will not be described here.
In the present embodiment, corresponding actual discharge capacity relative theory discharge capacity of described calculating discharge calculation cycle
The first attenuation amplitude the step of include：
Calculate the difference that the theoretical discharge capacity subtracts the actual discharge capacity；
By the difference divided by the actual discharge capacity, to draw discharge calculation cycle corresponding actual discharge capacity
First attenuation amplitude of relative theory discharge capacity.
In the present embodiment, it is described according to each described battery component in each described discharge calculation cycle corresponding first
The step of attenuation amplitude determines each described 1 corresponding lifetime stage of battery component includes：
S8, each described battery component 1 is averaged in each described discharge calculation cycle corresponding first attenuation amplitude
Value (remarks：If the quantity in the discharge calculation cycle is equal to 1, the average value is the discharge calculation cycle of only one
Corresponding first attenuation amplitude；The quantity in the discharge calculation cycle is bigger, and the precision of security control is higher, but amount of calculation is just
It is bigger, quantity preferably 10 of the present embodiment to the discharge calculation cycle), to obtain each described battery component in each institute
State discharge calculation cycle corresponding average attenuation amplitude；
S9, according to predetermined attenuation amplitude and lifetime stage (for example, the lifetime stage includes four-stage：The
One lifetime stage is the high-effect stage；Second lifetime stage is the middle efficiency stage；3rd lifetime stage is the poorly efficient energy stage；4th
Lifetime stage is the prewarning service life stage) mapping relations, determine the corresponding lifetime stage of each described average attenuation amplitude with
As the lifetime stage of corresponding battery component 1.
It should be noted that：In other embodiments of the invention, also include after above-mentioned steps S9：
If having the corresponding lifetime stage of battery component 1 for predetermined lifetime stage, according to the predetermined life-span
Stage with treatment type mapping relations (for example, it is poorly efficient can the stage it is corresponding treatment type can for " suggestion as early as possible eliminate more
Change ", the prewarning service life stage, corresponding treatment type can be " must immediately eliminate replacing "), determine that the battery component 1 is corresponding
Treatment type, and treatment prompt message corresponding with the battery component 1 is generated (for example, " identity is the battery pack of * * * * * *
Part must be changed immediately ").
As shown in figure 4, being the functional block diagram of the embodiment of battery component life tests module 21 1 in Fig. 3.In this implementation
In example, the battery component life tests module 21 includes calculation of capacity submodule 211, life-span determination sub-module 212.
The calculation of capacity submodule 211, for after the battery parameter for receiving battery component 1, in real time or timing root
According to each the corresponding discharge parameter of battery component 1 for receiving, each described battery component 1 is calculated in nearest preset times
The discharge calculation cycle corresponding actual discharge capacity and open-circuit voltage of (for example, 10 times), and according to predetermined open circuit electricity
Pressure value and the mapping relations of battery theoretical discharge capacity, determine the corresponding theoretical discharge of open-circuit voltage of each battery component
Capacity.
The life-span determination sub-module 212, for according to each described battery component 1 in each discharge calculation cycle
Actual discharge capacity and theoretical discharge capacity, calculate each described battery component 1 in each described discharge calculation cycle respectively
Corresponding first attenuation amplitude, and decayed in each described discharge calculation cycle corresponding first according to each described battery component
Amplitude determines each corresponding lifetime stage of battery component 1.
In the present embodiment, the calculation of capacity submodule 211 calculates discharge calculation cycle corresponding actual discharge and holds
Measure following (in other embodiments of the invention, one discharge calculation of the calculation of capacity submodule 211 calculating of calculating process of C
Cycle corresponding actual discharge capacity can also use other calculations, will not be described here)：
S1, the discharge current according to the discharge calculation cycle, time started and end time, and calculated by preset formula
Go out to refer to discharge capacity；
S2, according to predetermined battery core temperature and the mapping relations of the attenuation rate of discharge capacity of the cell, determine that this is put
The corresponding discharge capacity attenuation rate of battery core temperature of electric calculating cycle；
S3, the reference discharge capacity that will be calculated add the corresponding decay capacity of attenuation rate for determining, to obtain discharge calculation
Cycle corresponding actual discharge capacity C.
The preset formula is：Wherein, I represents the discharge current in discharge calculation cycle, and t11 is represented should
Between at the beginning of the discharge calculation cycle, t12 represents the end time in discharge calculation cycle.
It should be noted that：In other embodiments of the invention, above-mentioned steps S2 and S3 can not needed, can be direct
Security control will be carried out as actual discharge capacity with reference to discharge capacity, but can so reduce the accuracy of security control, easily
Error, the present embodiment, it is preferred to use above-mentioned steps S1, S2 and S3 calculate the actual discharge capacity C.
In the present embodiment, the life-span determination sub-module 212 calculates discharge calculation cycle corresponding first decay width
The calculating process of degree is as follows：
S4, battery core magnitude of voltage is calculated according to the discharge calculation cycle corresponding battery core internal resistance and discharge current；
S5, calculating battery core magnitude of voltage and predetermined load voltage values sum are corresponding to draw the discharge calculation cycle
Open-circuit voltage values, or, using the preset multiple (for example, 2 times) of battery core magnitude of voltage as the discharge calculation cycle corresponding open circuit
Magnitude of voltage；
S6, according to predetermined open-circuit voltage values and the mapping relations of battery theoretical discharge capacity, determine described opening
The corresponding battery theoretical discharge capacity of road magnitude of voltage；
If S7, actual discharge capacity are less than theoretical discharge capacity, discharge calculation cycle corresponding actual discharge is calculated
First attenuation amplitude of capacity relative theory discharge capacity.
In the present embodiment, the life-span determination sub-module 212 calculates the discharge calculation cycle corresponding actual discharge capacity
The step of first attenuation amplitude of relative theory discharge capacity, includes：
Calculate the difference that the theoretical discharge capacity subtracts the actual discharge capacity；
By the difference divided by the actual discharge capacity, to draw discharge calculation cycle corresponding actual discharge capacity
First attenuation amplitude of relative theory discharge capacity.
In the present embodiment, the life-span determination sub-module 212 according to each described battery component 1 in each discharge gage
The step of calculation cycle corresponding first attenuation amplitude determines each described 1 corresponding lifetime stage of battery component includes：
S8, each described battery component 1 is averaged in each described discharge calculation cycle corresponding first attenuation amplitude
Value (remarks：If the quantity in the discharge calculation cycle is equal to 1, the average value is the discharge calculation cycle of only one
Corresponding first attenuation amplitude；The quantity in the discharge calculation cycle is bigger, and the precision of security control is higher, but amount of calculation is just
It is bigger, quantity preferably 10 of the present embodiment to the discharge calculation cycle), to obtain each described battery component in each institute
State discharge calculation cycle corresponding average attenuation amplitude；
S9, according to predetermined attenuation amplitude and lifetime stage (for example, the lifetime stage includes four-stage：The
One lifetime stage is the high-effect stage；Second lifetime stage is the middle efficiency stage；3rd lifetime stage is the poorly efficient energy stage；4th
Lifetime stage is the prewarning service life stage) mapping relations, determine the corresponding lifetime stage of each described average attenuation amplitude with
As the lifetime stage of corresponding battery component 1.
It should be noted that：In other embodiments of the invention, also include after above-mentioned steps S9：
If having the corresponding lifetime stage of battery component 1 for predetermined lifetime stage, according to the predetermined life-span
Stage with treatment type mapping relations (for example, it is poorly efficient can the stage it is corresponding treatment type can for " suggestion as early as possible eliminate more
Change ", the prewarning service life stage, corresponding treatment type can be " must immediately eliminate replacing "), determine that the battery component 1 is corresponding
Treatment type, and treatment prompt message corresponding with the battery component 1 is generated (for example, " identity is the battery pack of * * * * * *
Part must be changed immediately ").
As shown in figure 5, being the implementing procedure figure of the embodiment of battery component life detecting method one of the present invention.
Step S11, after the battery parameter for receiving battery component 1, real-time or timing is according to reception for detection service device 2
Each corresponding discharge parameter of battery component 1, calculate each described battery component 1 nearest preset times (for example,
10 times) discharge calculation cycle corresponding actual discharge capacity and open-circuit voltage, and according to predetermined open-circuit voltage values with
The mapping relations of battery theoretical discharge capacity, determine the corresponding theoretical discharge capacity of open-circuit voltage of each battery component.
Step S12, detection service device 2 according to each described battery component 1 each discharge calculation cycle reality
Discharge capacity and theoretical discharge capacity, calculate each described battery component 1 in each discharge calculation cycle correspondence respectively
The first attenuation amplitude, and according to each described battery component in each described discharge calculation cycle corresponding first attenuation amplitude
Determine each corresponding lifetime stage of battery component 1.
In the present embodiment, a battery component 1 is calculated in discharge calculation cycle corresponding actual discharge capacity C
Step includes：
H1, according to the battery component 1 in the discharge current in discharge calculation cycle, time started and end time, and pass through
Preset formula calculates reference discharge capacity of the battery component 1 in the discharge calculation cycle；
H2, according to predetermined battery core temperature and the mapping relations of the attenuation rate of discharge capacity of the cell, determine the electricity
Battery core temperature corresponding discharge capacity attenuation rate of the pond component 1 in the discharge calculation cycle；
H3, the reference discharge capacity that will be calculated add the corresponding decay capacity of attenuation rate for determining, to obtain the battery pack
Actual discharge capacity C of the part 1 in the discharge calculation cycle.
The preset formula is：Wherein, I represents the discharge current in discharge calculation cycle, and t11 is represented should
Between at the beginning of the discharge calculation cycle, t12 represents the end time in discharge calculation cycle.
It should be noted that：In other embodiments of the invention, above-mentioned steps H2 and H3 can not needed, can be direct
Security control will be carried out as actual discharge capacity with reference to discharge capacity, but can so reduce the accuracy of security control, easily
Error, the present embodiment, it is preferred to use above-mentioned steps H1, H2 and H3 calculate reality of the battery component 1 in the discharge calculation cycle
Discharge capacity C.
In the present embodiment, a battery component 1 is calculated in discharge calculation cycle corresponding theoretical discharge capacity
Step includes：
H4, battery core is calculated in the discharge calculation cycle corresponding battery core internal resistance and discharge current according to the battery component 1
Magnitude of voltage；
H5, calculate the battery core magnitude of voltage and predetermined load voltage values sum to draw the battery component 1 at this
Discharge calculation cycle corresponding open-circuit voltage values, or, using the preset multiple (for example, 2 times) of the battery core magnitude of voltage as should
Battery component 1 is in the discharge calculation cycle corresponding open-circuit voltage values；
H6, according to predetermined open-circuit voltage values and the mapping relations of battery theoretical discharge capacity, determine described opening
The corresponding battery theoretical discharge capacity of road magnitude of voltage.
In the present embodiment, a battery component 1 is calculated in discharge calculation cycle corresponding actual discharge capacity phase
The step of to the first attenuation amplitude of theoretical discharge capacity, includes：
Calculate the battery component 1 and subtract corresponding actual discharge appearance in the discharge calculation cycle corresponding theoretical discharge capacity
The difference of amount；
By the difference divided by the battery component 1 in the discharge calculation cycle corresponding actual discharge capacity, to draw this
First attenuation amplitude of the battery component 1 in the discharge calculation cycle corresponding actual discharge capacity relative theory discharge capacity.
In the present embodiment, it is described according to each described battery component 1 in each described discharge calculation cycle corresponding
One attenuation amplitude determines that each corresponding lifetime stage of battery component 1 includes：
H8, each described battery component 1 is averaged in each described discharge calculation cycle corresponding first attenuation amplitude
Value (remarks：If the quantity in the discharge calculation cycle is equal to 1, the average value is the discharge calculation cycle of only one
Corresponding first attenuation amplitude；The quantity in the discharge calculation cycle is bigger, and the precision of security control is higher, but amount of calculation is just
It is bigger, quantity preferably 10 of the present embodiment to the discharge calculation cycle), to obtain each described battery component in each institute
State discharge calculation cycle corresponding average attenuation amplitude；
H9, according to predetermined attenuation amplitude and lifetime stage (for example, the lifetime stage includes four-stage：The
One lifetime stage is the high-effect stage；Second lifetime stage is the middle efficiency stage；3rd lifetime stage is the poorly efficient energy stage；4th
Lifetime stage is the prewarning service life stage) mapping relations, determine the corresponding lifetime stage of each described average attenuation amplitude with
As the lifetime stage of corresponding battery component 1.
It should be noted that：In other embodiments of the invention, also include after above-mentioned steps H9：
If having the corresponding lifetime stage of battery component 1 for predetermined lifetime stage, according to the predetermined life-span
Stage with treatment type mapping relations (for example, it is poorly efficient can the stage it is corresponding treatment type can for " suggestion as early as possible eliminate more
Change ", the prewarning service life stage, corresponding treatment type can be " must immediately eliminate replacing "), determine that the battery component 1 is corresponding
Treatment type, and treatment prompt message corresponding with the battery component 1 is generated (for example, " identity is the battery pack of * * * * * *
Part must be changed immediately ").
As shown in fig. 6, reporting the implementing procedure figure of the embodiment of method one of battery parameter for battery component of the present invention.
Step S20, in each discharge process, battery component 1 detects the battery ginseng at least one discharge calculation cycle
Number, and/or, in each charging process, battery component detects the battery parameter at least one charging calculating cycle, the electricity
Pond parameter includes discharge parameter and/or charge parameter.
Step S21, battery component 1 receive detection service device 2 transmission battery parameter report instruction after, will detect electricity
Pond parameter is sent to detection service device 2, or, battery component 1 is in real time or the battery parameter of detecting is sent to detection by timing
Server 2, or, battery component 1 is being received after the battery parameter that user sends reports instruction, and the battery parameter that will be detected sends
To detection service device 2, or, battery component 1 is in real time or the battery parameter of detecting is sent to user terminal by timing, and by with
Family terminal is uploaded to detection service device 2.
It should be noted last that, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although ginseng
The present invention has been described in detail according to preferred embodiment, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent, without deviating from the spirit and scope of technical solution of the present invention.
Claims (12)
1. a kind of battery component life detecting method, it is characterised in that the method includes：
After the battery parameter including discharge parameter for receiving battery component, real-time or timing is according to reception for detection service device
The corresponding discharge parameter of each described battery component, calculate discharge gage of each described battery component in nearest preset times
Calculation cycle corresponding actual discharge capacity and open-circuit voltage, and held according to predetermined open-circuit voltage values and battery theoretical discharge
The mapping relations of amount, determine the corresponding theoretical discharge capacity of open-circuit voltage of each battery component；
Detection service device according to each described battery component each discharge calculation cycle actual discharge capacity and theory
Discharge capacity, calculates each described battery component in each described discharge calculation cycle corresponding first attenuation amplitude respectively,
And each electricity is determined in each described discharge calculation cycle corresponding first attenuation amplitude according to each described battery component
The corresponding lifetime stage of pond component.
2. battery component life detecting method as claimed in claim 1, it is characterised in that described to calculate each battery
Component includes the step of the discharge calculation cycle corresponding actual discharge capacity of nearest preset times：
H1, according to each battery component in the discharge current in each discharge calculation cycle, time started and end time, and pass through
Preset formula calculates reference discharge capacity of each battery component in each discharge calculation cycle；
H2, according to predetermined battery core temperature and the mapping relations of the attenuation rate of discharge capacity of the cell, determine each battery
Battery core temperature corresponding discharge capacity attenuation rate of the component in each discharge calculation cycle；
H3, each battery component that will be calculated add corresponding electric discharge in each discharge calculation cycle corresponding reference discharge capacity
The corresponding decay capacity of capacity attenuation rate, to obtain actual discharge capacity of each battery component in each discharge calculation cycle.
3. battery component life detecting method as claimed in claim 1, it is characterised in that described to calculate each battery
Component includes the step of the discharge calculation cycle corresponding open-circuit voltage of nearest preset times：
H4, according to each battery component in the corresponding battery core internal resistance of each discharge calculation cycle and discharge current, calculate each
Battery component is in each discharge calculation cycle corresponding battery core magnitude of voltage；
H5, each battery component is calculated in each discharge calculation cycle corresponding battery core magnitude of voltage and predetermined load voltage
Value sum, to draw each battery component in each discharge calculation cycle corresponding open-circuit voltage values, or, by each battery pack
Part each discharge calculation cycle corresponding battery core magnitude of voltage preset multiple as each battery component in each discharge calculation
Cycle corresponding open-circuit voltage values.
4. battery component life detecting method as claimed in claim 1, it is characterised in that described according to each battery pack
Part calculates each battery pack respectively in the actual discharge capacity and theoretical discharge capacity in each discharge calculation cycle
Part includes the step of each described discharge calculation cycle corresponding first attenuation amplitude：
Calculate each described battery component and subtract corresponding reality in each described discharge calculation cycle corresponding theoretical discharge capacity
The difference of border discharge capacity；
By each described battery component in each described discharge calculation cycle corresponding difference divided by corresponding actual discharge
Capacity, to show that each described battery component is put in each described discharge calculation cycle corresponding actual discharge capacity relative theory
First attenuation amplitude of capacitance.
5. battery component life detecting method as claimed in claim 1, it is characterised in that described according to each battery pack
Part determines the corresponding lifetime stage of each described battery component in each described discharge calculation cycle corresponding first attenuation amplitude
The step of include：
H8, each described battery component is averaged in each described discharge calculation cycle corresponding first attenuation amplitude, with
Each described battery component is obtained in each described discharge calculation cycle corresponding average attenuation amplitude；
H9, the mapping relations according to predetermined attenuation amplitude and lifetime stage, determine each average attenuation amplitude
Corresponding lifetime stage as corresponding battery component lifetime stage.
6. battery component life detecting method as claimed in claim 5, it is characterised in that described after the step H9
Each battery is determined in each described discharge calculation cycle corresponding first attenuation amplitude according to each described battery component
The step of component corresponding lifetime stage, also includes：
If having the corresponding lifetime stage of battery component for predetermined lifetime stage, according to predetermined lifetime stage with
The mapping relations of type are processed, the corresponding treatment type of the battery component is determined, and generate place corresponding with the battery component
Reason prompt message.
7. it is a kind of detect the battery component life-span detection service device, it is characterised in that the detection service device includes：
Communication unit, for being connected with battery component or predetermined user terminal communication, to receive the bag of battery component
Include the battery parameter of discharge parameter；
Memory cell, for storage battery assembly life-span detection module, and the battery component life tests module service data.
Processing unit, for calling and performs the battery component life tests module, to perform following steps：
After the battery parameter that communication unit receives battery component, in real time or regularly according to each the described battery pack for receiving
The corresponding discharge parameter of part, calculates discharge calculation cycle corresponding reality of each described battery component in nearest preset times
Discharge capacity and open-circuit voltage, and according to the mapping relations of predetermined open-circuit voltage values and battery theoretical discharge capacity, really
The corresponding theoretical discharge capacity of open-circuit voltage of fixed each battery component；
Actual discharge capacity and theoretical discharge capacity according to each described battery component in each discharge calculation cycle, point
Each described battery component is not calculated in each described discharge calculation cycle corresponding first attenuation amplitude, and according to each institute
State battery component and determine that each described battery component is corresponding in each described discharge calculation cycle corresponding first attenuation amplitude
Lifetime stage.
8. detection service device as claimed in claim 7, it is characterised in that described each described battery component that calculates is nearest
The step of discharge calculation cycle of preset times corresponding actual discharge capacity, includes：
H1, according to each battery component in the discharge current in each discharge calculation cycle, time started and end time, and pass through
Preset formula calculates reference discharge capacity of each battery component in each discharge calculation cycle；
H2, according to predetermined battery core temperature and the mapping relations of the attenuation rate of discharge capacity of the cell, determine each battery
Battery core temperature corresponding discharge capacity attenuation rate of the component in each discharge calculation cycle；
H3, each battery component that will be calculated add corresponding electric discharge in each discharge calculation cycle corresponding reference discharge capacity
The corresponding decay capacity of capacity attenuation rate, to obtain actual discharge capacity of each battery component in each discharge calculation cycle.
9. detection service device as claimed in claim 7, it is characterised in that described each described battery component that calculates is nearest
The step of discharge calculation cycle of preset times corresponding open-circuit voltage, includes：
H4, according to each battery component in the corresponding battery core internal resistance of each discharge calculation cycle and discharge current, calculate each
Battery component is in each discharge calculation cycle corresponding battery core magnitude of voltage；
H5, each battery component is calculated in each discharge calculation cycle corresponding battery core magnitude of voltage and predetermined load voltage
Value sum, to draw each battery component in each discharge calculation cycle corresponding open-circuit voltage values, or, by each battery pack
Part each discharge calculation cycle corresponding battery core magnitude of voltage preset multiple as each battery component in each discharge calculation
Cycle corresponding open-circuit voltage values.
10. detection service device as claimed in claim 7, it is characterised in that it is described according to each described battery component at each
The actual discharge capacity and theoretical discharge capacity in the discharge calculation cycle, calculate each described battery component at each respectively
The step of discharge calculation cycle corresponding first attenuation amplitude, includes：
Calculate each described battery component and subtract corresponding reality in each described discharge calculation cycle corresponding theoretical discharge capacity
The difference of border discharge capacity；
By each described battery component in each described discharge calculation cycle corresponding difference divided by corresponding actual discharge
Capacity, to show that each described battery component is put in each described discharge calculation cycle corresponding actual discharge capacity relative theory
First attenuation amplitude of capacitance.
11. detection service devices as claimed in claim 7, it is characterised in that it is described according to each described battery component at each
The step of discharge calculation cycle corresponding first attenuation amplitude determines each described battery component corresponding lifetime stage is wrapped
Include：
H8, each described battery component is averaged in each described discharge calculation cycle corresponding first attenuation amplitude, with
Each described battery component is obtained in each described discharge calculation cycle corresponding average attenuation amplitude；
H9, the mapping relations according to predetermined attenuation amplitude and lifetime stage, determine each average attenuation amplitude
Corresponding lifetime stage as corresponding battery component lifetime stage.
12. a kind of devices for detecting the battery component life-span, it is characterised in that the device includes：
Calculation of capacity submodule, it is in real time or fixed for after the battery parameter including discharge parameter for receiving battery component
When according to the corresponding discharge parameter of each described battery component for receiving, calculate each described battery component at default recently time
Corresponding actual discharge capacity of several discharge calculation cycles and open-circuit voltage, and according to predetermined open-circuit voltage values and battery
The mapping relations of theoretical discharge capacity, determine the corresponding theoretical discharge capacity of open-circuit voltage of each battery component；
Life-span determination sub-module, holds for the actual discharge according to each described battery component in each discharge calculation cycle
Amount and theoretical discharge capacity, calculate each described battery component and are declined in each described discharge calculation cycle corresponding first respectively
Amount of decrease degree, and each is determined in each described discharge calculation cycle corresponding first attenuation amplitude according to each described battery component
The corresponding lifetime stage of the battery component.
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