CN106842057B - 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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- CN106842057B CN106842057B CN201710094248.2A CN201710094248A CN106842057B CN 106842057 B CN106842057 B CN 106842057B CN 201710094248 A CN201710094248 A CN 201710094248A CN 106842057 B CN106842057 B CN 106842057B
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- battery
- calculation period
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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 present invention provides a kind of battery component life detecting methods, this method is realized by detection service device calculates the corresponding discharge capacity attenuation amplitude of each battery component according to the battery parameter of battery component, and then the corresponding lifetime stage of respective battery component is determined according to the discharge capacity attenuation amplitude of calculating, realize that the battery use dispersion and battery pack realize accurate concentration life tests, the validity of the service life supervision of battery is lost and reduced to the history battery parameter for effectively preventing battery component, in the accuracy while the operand that the calculating of battery component service life is greatly reduced that ensure that the battery component service life calculates, effectively reduce the cost of battery component, effectively increase the operation efficiency of the service life 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 methods, detection service
Device and device.
Background technique
Battery (for example, lithium battery, battery etc.) refers to the midget plant that can be produced electricl 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, it is available that there is burning voltage, stablize electricity
Stream, long-time stable power supply, the electric current of very little is influenced by the external world, and battery structure is simple, easy to carry, the electrically operated letter of charge and discharge
Easy row, is not influenced by outside climatic and temperature, stable and reliable for performance, and the various aspects performance in modern society's life has
Great role, such as 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, as instrument and meter, intercom, electric tool, electric bicycle, electrodynamic balance vehicle, logistics and storage facilities,
Electric car, domestic or commercial or power station energy storage, UPS (uninterruptible power supply) etc..It is well known that object of the battery due to its own
Reason and/or chemical characteristic, the service life of its own can all be reduced by often filling primary electricity and/or putting primary electricity.
For battery because of the various application risks of aging bring, presently, there are some pairs of battery lifes to detect in order to prevent
Detection scheme be unable to satisfy pair however, the detection scheme of existing battery life or to calculate complicated or error very big
Disperse the needs that the battery used carries out centralized management.Therefore, how the battery and battery pack that disperse to use are realized accurate
Life tests are concentrated to have become a technical problem urgently to be resolved.
Summary 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
Disperse the battery used and battery pack realizes accurate concentration life tests, the history battery parameter of battery component is effectively avoided to lose
Battery is greatly decreased in the accuracy for guaranteeing the calculating of battery component service life in the validity for losing and reducing the service life supervision of battery simultaneously
The operand that assembly life-span calculates, is effectively reduced the cost of battery component, effectively improves the operation of the service life calculating of battery component
Efficiency.
A kind of battery component life detecting method, this method comprises:
Detection service device after receiving the battery parameter including discharge parameter of battery component, in real time or timing according to
The corresponding discharge parameter of received each battery component, calculates each battery component putting in nearest preset times
The corresponding actual discharge capacity of electric calculating cycle and open-circuit voltage, and put according to predetermined open-circuit voltage values and battery theory
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 battery component each discharge calculation period actual discharge capacity and
Theoretical discharge capacity calculates separately out each battery component in corresponding first decaying width of each discharge calculation period
Degree, and determined in corresponding first attenuation amplitude of each discharge calculation period according to each battery component each described
The corresponding lifetime stage of battery component.
A kind of detection service device detecting the battery component service life, the detection service device include:
Communication unit, for being connect with battery component or predetermined user terminal communication, to receive battery component
The battery parameter including discharge parameter；
Storage unit, the operation for storage battery assembly life-span detection module and the battery component life tests module
Data.
Processing unit, for calling and executing the battery component life tests module, to execute following steps:
After communication unit receives the battery parameter of battery component, in real time or timing each electricity based on the received
The corresponding discharge parameter of pond component, the discharge calculation period for calculating each battery component in nearest preset times are 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 battery component in each discharge calculation period hold
Amount calculates separately out each battery component in corresponding first attenuation amplitude of each discharge calculation period, and according to
Each battery component determines each battery component in corresponding first attenuation amplitude of each discharge calculation period
Corresponding lifetime stage.
A kind of device detecting the battery component service life, the device include:
Calculation of capacity submodule, for after receiving the battery parameter including discharge parameter of battery component, in real time or
Person's timing corresponding discharge parameter of each battery component based on the received, it is pre- recently to calculate each battery component
If the discharge calculation period of number 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；
Service life determines submodule, for actually the putting in each discharge calculation period according to each battery component
Capacitance and theoretical discharge capacity calculate separately out each battery component in each discharge calculation period corresponding
One attenuation amplitude, and determined according to each battery component in corresponding first attenuation amplitude of each discharge calculation period
The corresponding lifetime stage of each battery component.
Compared with the prior art, 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 of calculating
Capacity attenuation amplitude determines the corresponding lifetime stage of respective battery component, realizes that the battery use dispersion and battery pack are realized
Accurate to concentrate life tests, the service life supervision of battery is lost and reduced to the history battery parameter for effectively preventing battery component
Validity, in the accuracy while the operation that the calculating of battery component service life is greatly reduced that ensure that the battery component service life calculates
Amount, effectively reduces the cost of battery component, effectively increases the operation efficiency of the service life calculating of battery component.
Detailed description of the invention
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 1 one embodiment of battery component in Fig. 1.
Fig. 3 is the hardware structure diagram of 2 one embodiment of detection service device in Fig. 1.
Fig. 4 is the functional block diagram of 21 1 embodiment of battery component life tests module in Fig. 3.
Fig. 5 is the implementation flow chart of one embodiment of battery component life detecting method of the present invention.
Fig. 6 is the implementation flow chart for one embodiment of method 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, which includes detection service device 2, 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, local area network
Or any other applicable data communication network.
Detection service device 2, for passing through communication network 3 in real time or periodically from one or more predetermined battery packs
Part 1 receives the battery parameter reported, and the corresponding battery parameter of each battery component 1 based on the received, to each described
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 of detecting
It is reported to detection service device 2, the corresponding battery parameter of each battery component 1 based on the received of detection service device 2, to each
The battery component 1 carries out service life calculating, so that having following technical benefits: realizing the service life of long-range monitoring battery component 1
State；Effectively the history battery parameter of battery component is avoided to lose；Realize the remaining life for shifting to an earlier date expected battery component 1, in advance
Orderly carry out the replacement of battery component 1；The operand of battery component 1 itself is greatly reduced, realizes the concentration longevity of battery component 1
Life detection, effectively increases the safety in utilization of battery component 1；Effectively reduce the cost of battery component；Convenient for updating battery
Assembly life-span inspection software only need to be in detection service without updating battery component life tests software respectively on each device
It is 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 not need to carry out direct data communication with detection service device 2, core of the invention hair
Bright point is: how to be detected according to the battery parameter of battery component 1 to the service life of battery component 1.
Below with reference to specific embodiment, the specific function of the battery component life tests system respectively formed is elaborated
Energy and design feature.
As shown in Fig. 2, for the hardware structure diagram of 1 one embodiment of battery component in Fig. 1.In the present embodiment, the battery pack
Part 1 includes battery core 10, the parameter detecting unit 11 connecting with 10 signal of battery core, the micro- place connecting with 11 signal of parameter detecting unit
Manage unit 12, and the wireless communication unit 13 connecting with 12 signal of microprocessing unit.
The wireless communication unit 13 can be RF (Radio Freqency, radio frequency) module, WIFI module, bluetooth module,
The mobile comm unit etc. that can be communicated to connect with mobile base station with SIM card.
The parameter detecting unit 11 is for detecting battery parameter of the battery core 10 under charged state and/or discharge condition.In
In the present embodiment, which 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 at the beginning of calculating cycle01With end time t02, it is each charging calculating cycle in battery core 10 voltage V0, each charging
The temperature of 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 temperature as the battery core 10 in the charging calculating cycle) and each battery core 10 in calculating cycle that charges internal resistance R0；In
In the other embodiment of the present 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 period1, each electric discharge
T at the beginning of calculating cycle11With end time t12, battery core 10 in each discharge calculation period temperature (if an electric discharge
The temperature of battery core 10 is inconsistent in calculating cycle, then can be averaged the temperature as the battery core 10 in the discharge calculation period
Degree) and the battery core 10 in each discharge calculation period internal resistance R1；In other embodiments of the invention, the discharge parameter can
Not include the temperature of battery core 10 in each discharge calculation period.
In the present embodiment, which includes for detecting charging current I0And/or discharge current I1Electricity
Flowing sampling sensor, (the current sample sensor can be current sampling resistor, can also be current sample IC, in this implementation
Example in, the current sample sensor is using current sampling resistor), for recording each charging calculating cycle and/or putting
With the timer of end time, for detecting each charging calculating cycle and/or discharge calculation at the beginning of electric calculating cycle
The temperature sensor of 10 temperature of battery core is (for example, NTC (Negative Temperature Coefficient, negative temperature in period
Coefficient) thermistor temperature sensor), for detecting each charging calculating cycle and/or in the discharge calculation period in battery core 10
The internal resistance test device of resistance；In other embodiments of the invention, which can not include each for detecting
Charge calculating cycle and/or in the discharge calculation period 10 temperature of battery core temperature sensor (for example, NTC (Negative
Temperature Coefficient, negative temperature coefficient) thermistor temperature sensor).
In the present embodiment, which is used for:
In real time or the charged state of battery component 1 is detected in timing and/or discharge condition (judges the charging and discharging state of battery
Process are as follows: judgement is by the level state at current sampling resistor both ends, if current sampling resistor both ends are positive level, it is determined that
Battery component 1 is in discharge condition, if current sampling resistor both ends are negative level, it is determined that battery component 1 is in charging shape
State)；
If battery component 1 is in charged state, pass through at least one under the current sample sensor detecting charged state
Charging current I in a charging calculating cycle0(for example, can start to detect when determining 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；It can also determine electricity
Pond component starts to detect when being in charged state, and the charging current that one under the charged state charges in calculating cycle is detected
After, immediately or it is spaced the detecting that preset time starts next charging current in calculating cycle that charges, until charging
State terminate or the charged state under preset quantity (for example, 3 times) charging calculating cycle in charging current detecting finish
Until), by each charging calculating cycle of timer record at the beginning of and the end time, detectd by temperature sensor
The temperature of battery core 10 in each 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, pass through at least one discharge calculation under the current sample sensor detecting discharge condition
Discharge current I in period1(for example, can start to detect when determining that battery component is in discharge condition, pass through current sample
The charging current in a charging calculating cycle under the sensor detecting discharge condition；It can also be in determining battery component
Start to detect when discharge condition, after the discharge current under the discharge condition a discharge calculation period is detected, with
I.e. or interval preset time starts the detecting of the discharge current in next discharge calculation period, terminate until discharge condition or
Until charging current detecting under person's discharge condition in the discharge calculation period of preset quantity (for example, 3 times) finishes), pass through
At the beginning of timer record each discharge calculation period and the end time, detected by temperature sensor each described
The temperature of battery core 10 in the discharge calculation period, and battery core 10 in each discharge calculation period 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 of detecting is joined
Unit 13 is sent to detection service device 2 to number by wireless communication, alternatively, the battery parameter of detecting is passed through nothing in real time or periodically
Line communication unit 13 is sent to detection service device 2, alternatively, will detect after the battery parameter for receiving user's sending reports instruction
Battery parameter be sent to safety control server, alternatively, in real time or timing by the battery parameter of detecting by wireless communication
Unit 13 is sent to user terminal, and by user terminal uploads to detection service device 2.
It should be understood that 2 timing of detection service device is sent by communication network to each predetermined battery component 1
Battery parameter reports instruction, and receives battery parameter (in this case, the institute reported from each predetermined battery component 1
State battery component 1 and need to configure storage unit to store the battery parameter because the detecting time point of the battery parameter with
The sending time point of the reporting parameters instruction may be inconsistent, needs to store the battery parameter before reporting)；
Alternatively, each 1 timing of predetermined battery component sends the battery parameter of detecting to detection service device 2, detection service device 2 exists
After having detected the transmission of battery component 1 battery parameter, battery parameter (such case that the battery component 1 is sent is received
Under, the battery component 1 needs to configure storage unit to store the battery parameter, because of the detecting time of the battery parameter
The sending time point of point and the battery parameter may be inconsistent, needs before transmitting to store the battery parameter)；
Alternatively, the battery parameter of detecting is sent to inspection in real time after having battery parameter to detect by each predetermined battery component 1
Server 2 is surveyed, detection service device 2 receives the battery component 1 after having detected the battery component 1 and having sent battery parameter
The battery parameter of transmission (in this case, the battery component 1 does not need configuration memory cell to store the battery parameter)；
Alternatively, each predetermined battery component 1 joins the battery of detecting after the battery parameter for receiving user's sending reports instruction
Number is sent to safety control server, and (in this case, the battery component 1 needs to configure storage unit to store the battery
Parameter needs because the sending time point of the detecting time point of the battery parameter and the battery parameter may be inconsistent
The battery parameter is stored before transmission).
As shown in figure 3, for the hardware structure diagram of 2 one embodiment of detection service device in Fig. 1.In the present embodiment, the detection
Server 2 includes communication unit 23, storage unit 25, processing unit 20 and battery component life tests module 21.
The communication unit 23 is used to connect through communication network 3 with battery component 1 or predetermined user terminal communication,
To receive the battery parameter of battery component 1, the battery parameter includes discharge parameter.
The storage unit 25 is for storing the battery component life tests module 21 and the battery component life tests module
21 operation data.
The processing unit 20 is for calling and executing the battery component life tests module 21, to execute following steps:
Communication unit 23 receive battery component 1 battery parameter (for example, the battery parameter includes discharge parameter,
The discharge parameter includes the discharge current I in each discharge calculation period1, t at the beginning of each discharge calculation period11With
End time t12, battery core 10 in each discharge calculation period internal resistance R1) and identity (for example, unique identifier ID)
Afterwards, in real time or the timing corresponding discharge parameter of each battery component 1 based on the received, each battery pack is calculated
Part 1 nearest preset times (for example, 10 times) discharge calculation period corresponding actual discharge capacity and open-circuit voltage, and according to
The mapping relations of predetermined open-circuit voltage values and 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 battery component 1 in each discharge calculation period hold
Amount calculates separately out each battery component 1 in corresponding first attenuation amplitude of each discharge calculation period, and according to
Each battery component 1 determines each battery component in corresponding first attenuation amplitude of each discharge calculation period
1 corresponding lifetime stage.
In the present embodiment, the calculating process of a discharge calculation period corresponding actual discharge capacity C is following (in this hair
In bright other embodiments, a discharge calculation period corresponding actual discharge capacity can also use other calculations, In
This is not repeated them here):
S1, the discharge current according to the discharge calculation period, starting and end time, and calculated by preset formula
Discharge capacity is referred to out；
S2, according to the mapping relations of predetermined battery core temperature and the attenuation rate of discharge capacity of the cell, determine that this is put
The corresponding discharge capacity attenuation rate of the battery core temperature of electric calculating cycle；
S3, the reference discharge capacity of calculating is added to the determining corresponding decaying capacity of attenuation rate, to obtain discharge calculation
Period corresponding actual discharge capacity C.
The preset formula are as follows:Wherein, I represents the discharge current in discharge calculation period, and t11 is represented should
At the beginning of the discharge calculation period, t12 represents the end time in discharge calculation period.
It should be understood that in other embodiments of the invention, above-mentioned steps S2 and S3 can not needed, it can be direct
Security control will be carried out as actual discharge capacity with reference to discharge capacity, but the accuracy of security control can be reduced in this way, be easy
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 a discharge calculation period corresponding first attenuation amplitude is as follows:
S4, battery core voltage value is calculated according to the discharge calculation period corresponding battery core internal resistance and discharge current；
S5, the sum of battery core voltage value and predetermined load voltage values are calculated to show that the discharge calculation period is corresponding
Open-circuit voltage values, alternatively, regarding the presupposition multiple (for example, 2 times) of battery core voltage value as the discharge calculation period corresponding open circuit
Voltage value；
S6, according to the mapping relations of predetermined open-circuit voltage values and battery theoretical discharge capacity, determine described open
The corresponding battery theoretical discharge capacity of road voltage value；
If S7, actual discharge capacity are less than theoretical discharge capacity, discharge calculation period corresponding actual discharge is calculated
First attenuation amplitude of capacity relative theory discharge capacity.
In other embodiments of the invention, the calculating discharge calculation period corresponding actual discharge capacity is opposite manages
By discharge capacity the first attenuation amplitude the step of can be executed at once after battery theoretical discharge capacity is determined, be not necessarily to thing
First judge whether actual discharge capacity is less than theoretical discharge capacity, this will not be repeated here.
In the present embodiment, the calculating discharge calculation period corresponding actual discharge capacity relative theory discharge capacity
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 obtain discharge calculation period corresponding actual discharge capacity
First attenuation amplitude of relative theory discharge capacity.
In the present embodiment, it is described according to each battery component in each discharge calculation period corresponding first
Attenuation amplitude determines that the step of each 1 corresponding lifetime stage of battery component includes:
S8, each battery component 1 is averaged in corresponding first attenuation amplitude of each discharge calculation period
(remarks: if the quantity in the discharge calculation period is equal to 1, the average value is the discharge calculation period of only one to value
Corresponding first attenuation amplitude；The quantity in the discharge calculation period is bigger, and the precision of security control is higher, but calculation amount is just
It is bigger, quantity preferably 10 of the present embodiment to the discharge calculation period), to obtain each battery component in each institute
State discharge calculation period corresponding average attenuation amplitude；
S9, according to predetermined attenuation amplitude and lifetime stage (for example, the lifetime stage includes four-stage:
One lifetime stage is the high-effect stage；Second lifetime stage is the middle efficiency stage；Third lifetime stage is the inefficient energy stage；4th
Lifetime stage be the prewarning service life stage) mapping relations, determine the corresponding lifetime stage of each average attenuation amplitude with
Lifetime stage as corresponding battery component 1.
It should be understood that in other embodiments of the invention, after above-mentioned steps S9 further include:
If having the corresponding lifetime stage of battery component 1 is predetermined lifetime stage, according to the predetermined service life
Stage and processing type mapping relations (for example, it is inefficient can stage corresponding processing type can for " it is recommended that as early as possible it is superseded more
Change ", prewarning service life stage corresponding processing type can be " must eliminate replacement immediately "), determine that the battery component 1 is corresponding
Type is handled, and generates processing prompt information corresponding with the battery component 1 (for example, " identity is the battery pack of * * * * * *
Part must be replaced immediately ").
As shown in figure 4, for the functional block diagram of 21 1 embodiment of battery component life tests module in Fig. 3.In this implementation
In example, which determines submodule 212 including calculation of capacity submodule 211, service life.
The calculation of capacity submodule 211, for after the battery parameter for receiving battery component 1, in real time or timing root
According to the corresponding discharge parameter of received each battery component 1, each battery component 1 is calculated in nearest preset times
The discharge calculation period of (for example, 10 times) corresponding actual discharge capacity and open-circuit voltage, and according to predetermined open circuit electricity
The mapping relations of pressure value and battery theoretical discharge capacity determine the corresponding theoretical discharge of open-circuit voltage of each battery component
Capacity.
The service life determines submodule 212, for according to each battery component 1 in each discharge calculation period
Actual discharge capacity and theoretical discharge capacity calculate separately out each battery component 1 in each discharge calculation period
Corresponding first attenuation amplitude, and decayed according to each battery component in each discharge calculation period corresponding first
Amplitude determines the corresponding lifetime stage of each battery component 1.
In the present embodiment, which calculates a discharge calculation period 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
Period corresponding actual discharge capacity can also use other calculations, and this will not be repeated here):
S1, the discharge current according to the discharge calculation period, starting and end time, and calculated by preset formula
Discharge capacity is referred to out；
S2, according to the mapping relations of predetermined battery core temperature and the attenuation rate of discharge capacity of the cell, determine that this is put
The corresponding discharge capacity attenuation rate of the battery core temperature of electric calculating cycle；
S3, the reference discharge capacity of calculating is added to the determining corresponding decaying capacity of attenuation rate, to obtain discharge calculation
Period corresponding actual discharge capacity C.
The preset formula are as follows:Wherein, I represents the discharge current in discharge calculation period, and t11 is represented should
At the beginning of the discharge calculation period, t12 represents the end time in discharge calculation period.
It should be understood that in other embodiments of the invention, above-mentioned steps S2 and S3 can not needed, it can be direct
Security control will be carried out as actual discharge capacity with reference to discharge capacity, but the accuracy of security control can be reduced in this way, be easy
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, which determines that submodule 212 calculates a discharge calculation period corresponding first decaying width
The calculating process of degree is as follows:
S4, battery core voltage value is calculated according to the discharge calculation period corresponding battery core internal resistance and discharge current；
S5, the sum of battery core voltage value and predetermined load voltage values are calculated to show that the discharge calculation period is corresponding
Open-circuit voltage values, alternatively, regarding the presupposition multiple (for example, 2 times) of battery core voltage value as the discharge calculation period corresponding open circuit
Voltage value；
S6, according to the mapping relations of predetermined open-circuit voltage values and battery theoretical discharge capacity, determine described open
The corresponding battery theoretical discharge capacity of road voltage value；
If S7, actual discharge capacity are less than theoretical discharge capacity, discharge calculation period corresponding actual discharge is calculated
First attenuation amplitude of capacity relative theory discharge capacity.
In the present embodiment, which determines that submodule 212 calculates the discharge calculation period 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 obtain discharge calculation period corresponding actual discharge capacity
First attenuation amplitude of relative theory discharge capacity.
In the present embodiment, which determines submodule 212 according to each battery component 1 in each discharge gage
Calculating the step of period corresponding first attenuation amplitude determines each 1 corresponding lifetime stage of battery component includes:
S8, each battery component 1 is averaged in corresponding first attenuation amplitude of each discharge calculation period
(remarks: if the quantity in the discharge calculation period is equal to 1, the average value is the discharge calculation period of only one to value
Corresponding first attenuation amplitude；The quantity in the discharge calculation period is bigger, and the precision of security control is higher, but calculation amount is just
It is bigger, quantity preferably 10 of the present embodiment to the discharge calculation period), to obtain each battery component in each institute
State discharge calculation period corresponding average attenuation amplitude；
S9, according to predetermined attenuation amplitude and lifetime stage (for example, the lifetime stage includes four-stage:
One lifetime stage is the high-effect stage；Second lifetime stage is the middle efficiency stage；Third lifetime stage is the inefficient energy stage；4th
Lifetime stage be the prewarning service life stage) mapping relations, determine the corresponding lifetime stage of each average attenuation amplitude with
Lifetime stage as corresponding battery component 1.
It should be understood that in other embodiments of the invention, after above-mentioned steps S9 further include:
If having the corresponding lifetime stage of battery component 1 is predetermined lifetime stage, according to the predetermined service life
Stage and processing type mapping relations (for example, it is inefficient can stage corresponding processing type can for " it is recommended that as early as possible it is superseded more
Change ", prewarning service life stage corresponding processing type can be " must eliminate replacement immediately "), determine that the battery component 1 is corresponding
Type is handled, and generates processing prompt information corresponding with the battery component 1 (for example, " identity is the battery pack of * * * * * *
Part must be replaced immediately ").
As shown in figure 5, being the implementation flow chart of one embodiment of battery component life detecting method of the present invention.
Step S11, detection service device 2 is after the battery parameter for receiving battery component 1, and in real time or timing is according to reception
The corresponding discharge parameter of each battery component 1, calculate each battery component 1 nearest preset times (for example,
10 times) discharge calculation period 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 battery component 1 each discharge calculation period reality
It is corresponding in each discharge calculation period to calculate separately out each battery component 1 for discharge capacity and theoretical discharge capacity
The first attenuation amplitude, and according to each battery component in corresponding first attenuation amplitude of each discharge calculation period
Determine the corresponding lifetime stage of each battery component 1.
In the present embodiment, a battery component 1 is calculated in a discharge calculation period corresponding actual discharge capacity C
Step includes:
H1, the discharge current according to the battery component 1 in the discharge calculation period, starting and end time, and pass through
Preset formula calculates the battery component 1 in the reference discharge capacity in discharge calculation period；
H2, according to the mapping relations of predetermined battery core temperature and 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 period；
H3, the reference discharge capacity of calculating is added to the determining corresponding decaying capacity of attenuation rate, to obtain the battery pack
Actual discharge capacity C of the part 1 in the discharge calculation period.
The preset formula are as follows:Wherein, I represents the discharge current in discharge calculation period, and t11 is represented should
At the beginning of the discharge calculation period, t12 represents the end time in discharge calculation period.
It should be understood that in other embodiments of the invention, above-mentioned steps H2 and H3 can not needed, it can be direct
Security control will be carried out as actual discharge capacity with reference to discharge capacity, but the accuracy of security control can be reduced in this way, be easy
Error, the present embodiment, it is preferred to use above-mentioned steps H1, H2 and H3 calculate the battery component 1 in the reality in discharge calculation period
Discharge capacity C.
In the present embodiment, a battery component 1 is calculated in a discharge calculation period corresponding theoretical discharge capacity
Step includes:
H4, battery core is calculated in the discharge calculation period corresponding battery core internal resistance and discharge current according to the battery component 1
Voltage value；
H5, the sum of the battery core voltage value and predetermined load voltage values are calculated to obtain the battery component 1 at this
Discharge calculation period corresponding open-circuit voltage values, alternatively, the presupposition multiple (for example, 2 times) of the battery core voltage value is used as should
Battery component 1 is in the discharge calculation period corresponding open-circuit voltage values；
H6, according to the mapping relations of predetermined open-circuit voltage values and battery theoretical discharge capacity, determine described open
The corresponding battery theoretical discharge capacity of road voltage value.
In the present embodiment, a battery component 1 is calculated in a discharge calculation period corresponding actual discharge capacity phase
Include: to the step of the first attenuation amplitude of theoretical discharge capacity
It calculates the battery component 1 and subtracts corresponding actual discharge appearance in the discharge calculation period corresponding theoretical discharge capacity
The difference of amount；
By the difference divided by the battery component 1 in the discharge calculation period corresponding actual discharge capacity, to obtain this
First attenuation amplitude of the battery component 1 in the discharge calculation period corresponding actual discharge capacity relative theory discharge capacity.
In the present embodiment, it is described according to each battery component 1 in each discharge calculation period corresponding
One attenuation amplitude determines that the corresponding lifetime stage of each battery component 1 includes:
H8, each battery component 1 is averaged in corresponding first attenuation amplitude of each discharge calculation period
(remarks: if the quantity in the discharge calculation period is equal to 1, the average value is the discharge calculation period of only one to value
Corresponding first attenuation amplitude；The quantity in the discharge calculation period is bigger, and the precision of security control is higher, but calculation amount is just
It is bigger, quantity preferably 10 of the present embodiment to the discharge calculation period), to obtain each battery component in each institute
State discharge calculation period corresponding average attenuation amplitude；
H9, according to predetermined attenuation amplitude and lifetime stage (for example, the lifetime stage includes four-stage:
One lifetime stage is the high-effect stage；Second lifetime stage is the middle efficiency stage；Third lifetime stage is the inefficient energy stage；4th
Lifetime stage be the prewarning service life stage) mapping relations, determine the corresponding lifetime stage of each average attenuation amplitude with
Lifetime stage as corresponding battery component 1.
It should be understood that in other embodiments of the invention, after above-mentioned steps H9 further include:
If having the corresponding lifetime stage of battery component 1 is predetermined lifetime stage, according to the predetermined service life
Stage and processing type mapping relations (for example, it is inefficient can stage corresponding processing type can for " it is recommended that as early as possible it is superseded more
Change ", prewarning service life stage corresponding processing type can be " must eliminate replacement immediately "), determine that the battery component 1 is corresponding
Type is handled, and generates processing prompt information corresponding with the battery component 1 (for example, " identity is the battery pack of * * * * * *
Part must be replaced immediately ").
As shown in fig. 6, reporting the implementation flow chart of one embodiment of method 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 period
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 is after the battery parameter for receiving the transmission of detection service device 2 reports instruction, by the electricity of detecting
Pond parameter is sent to detection service device 2, alternatively, the battery parameter of detecting is sent to detection in real time or periodically by battery component 1
Server 2, alternatively, battery component 1 sends the battery parameter of detecting after the battery parameter for receiving user's sending reports instruction
To detection service device 2, alternatively, 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 examples are only used to illustrate the technical scheme of the present invention and are not limiting, although ginseng
It is described the invention in detail according to preferred embodiment, those skilled in the art should understand that, it can be to the present invention
Technical solution modify or equivalent replacement, without departing from the spirit and scope of the technical solution of the present invention.
Claims (8)
1. a kind of battery component life detecting method, which is characterized in that this method comprises:
Detection service device is after receiving the battery parameter including discharge parameter of battery component, and in real time or timing is according to reception
The corresponding discharge parameter of each battery component, calculate each battery component in the discharge gage of nearest preset times
Period corresponding actual discharge capacity and open-circuit voltage are calculated, and is 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 battery component each discharge calculation period actual discharge capacity and theory
Discharge capacity, calculates separately out each battery component in corresponding first attenuation amplitude of each discharge calculation period,
And each electricity is determined in corresponding first attenuation amplitude of each discharge calculation period according to each battery component
The corresponding lifetime stage of pond component；
It is described to calculate each battery component in the discharge calculation period corresponding actual discharge capacity of nearest preset times
The step of include:
H1, the discharge current according to each battery component in each discharge calculation period, starting and end time, and pass through
Preset formula calculates each battery component in the reference discharge capacity in each discharge calculation period；
H2, according to the mapping relations of predetermined battery core temperature and 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 period；
H3, each battery component of calculating is added into corresponding electric discharge in corresponding reference discharge capacity of each discharge calculation period
The corresponding decaying capacity of capacity attenuation rate, to obtain each battery component in the actual discharge capacity in each discharge calculation period；
The step of the discharge calculation period corresponding open-circuit voltage in nearest preset times that calculates each battery component
Suddenly include:
H4, according to each battery component in the corresponding battery core internal resistance of each discharge calculation period and discharge current, calculate each
Battery component is in corresponding battery core voltage value of each discharge calculation period；
H5, each battery component is calculated in corresponding battery core voltage value of each discharge calculation period and predetermined load voltage
The sum of value, to obtain each battery component in corresponding open-circuit voltage values of each discharge calculation period, alternatively, by each battery pack
Part corresponding battery core voltage value of each discharge calculation period presupposition multiple as each battery component in each discharge calculation
Period corresponding open-circuit voltage values.
2. battery component life detecting method as described in claim 1, which is characterized in that described according to each battery pack
Part calculates separately out each battery pack in the actual discharge capacity and theoretical discharge capacity in each discharge calculation period
Part includes: in the step of corresponding first attenuation amplitude of each discharge calculation period
It calculates each battery component and subtracts corresponding reality in corresponding theoretical discharge capacity of each discharge calculation period
The difference of border discharge capacity；
By each battery component in the corresponding difference of each discharge calculation period divided by corresponding actual discharge
Capacity, to show that each battery component is put in corresponding actual discharge capacity relative theory of each discharge calculation period
First attenuation amplitude of capacitance.
3. battery component life detecting method as described in claim 1, which is characterized in that described according to each battery pack
Part determines the corresponding lifetime stage of each battery component in corresponding first attenuation amplitude of each discharge calculation period
The step of include:
H8, each battery component is averaged in corresponding first attenuation amplitude of each discharge calculation period, with
Each battery component is obtained in corresponding average attenuation amplitude of each discharge calculation period；
H9, according to the mapping relations of predetermined attenuation amplitude and lifetime stage, determine each average attenuation amplitude
Corresponding lifetime stage is using the lifetime stage as corresponding battery component.
4. battery component life detecting method as claimed in claim 3, which is characterized in that described after Yu Suoshu step H9
Each battery is determined in corresponding first attenuation amplitude of each discharge calculation period according to each battery component
The step of component corresponding lifetime stage further include:
If have the corresponding lifetime stage of battery component be predetermined lifetime stage, according to predetermined lifetime stage with
The mapping relations for handling type determine the corresponding processing type of the battery component, and generate place corresponding with the battery component
Manage prompt information.
5. a kind of detection service device for detecting the battery component service life, which is characterized in that the detection service device includes:
Communication unit, for being connect with battery component or predetermined user terminal communication, to receive the packet of battery component
Include the battery parameter of discharge parameter；
Storage unit, for storage battery assembly life-span detection module and the operation data of the battery component life tests module；
Processing unit, for calling and executing the battery component life tests module, to execute following steps:
After communication unit receives the battery parameter of battery component, in real time or timing each battery pack based on the received
The corresponding discharge parameter of part calculates each battery component in the discharge calculation period corresponding reality of 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 battery component in each discharge calculation period, point
Each battery component is not calculated in corresponding first attenuation amplitude of each discharge calculation period, and according to each institute
It states battery component and determines that each battery component is corresponding in corresponding first attenuation amplitude of each discharge calculation period
Lifetime stage；
It is described to calculate each battery component in the discharge calculation period corresponding actual discharge capacity of nearest preset times
The step of include:
H1, the discharge current according to each battery component in each discharge calculation period, starting and end time, and pass through
Preset formula calculates each battery component in the reference discharge capacity in each discharge calculation period；
H2, according to the mapping relations of predetermined battery core temperature and 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 period；
H3, each battery component of calculating is added into corresponding electric discharge in corresponding reference discharge capacity of each discharge calculation period
The corresponding decaying capacity of capacity attenuation rate, to obtain each battery component in the actual discharge capacity in each discharge calculation period；
The step of the discharge calculation period corresponding open-circuit voltage in nearest preset times that calculates each battery component
Suddenly include:
H4, according to each battery component in the corresponding battery core internal resistance of each discharge calculation period and discharge current, calculate each
Battery component is in corresponding battery core voltage value of each discharge calculation period；
H5, each battery component is calculated in corresponding battery core voltage value of each discharge calculation period and predetermined load voltage
The sum of value, to obtain each battery component in corresponding open-circuit voltage values of each discharge calculation period, alternatively, by each battery pack
Part corresponding battery core voltage value of each discharge calculation period presupposition multiple as each battery component in each discharge calculation
Period corresponding open-circuit voltage values.
6. detection service device as claimed in claim 5, which is characterized in that it is described according to each battery component in each institute
The actual discharge capacity and theoretical discharge capacity for stating the discharge calculation period calculate separately out each battery component in each institute
The step of stating discharge calculation period corresponding first attenuation amplitude include:
It calculates each battery component and subtracts corresponding reality in corresponding theoretical discharge capacity of each discharge calculation period
The difference of border discharge capacity；
By each battery component in the corresponding difference of each discharge calculation period divided by corresponding actual discharge
Capacity, to show that each battery component is put in corresponding actual discharge capacity relative theory of each discharge calculation period
First attenuation amplitude of capacitance.
7. detection service device as claimed in claim 5, which is characterized in that it is described according to each battery component in each institute
Stating the step of discharge calculation period corresponding first attenuation amplitude determines each battery component corresponding lifetime stage includes:
H8, each battery component is averaged in corresponding first attenuation amplitude of each discharge calculation period, with
Each battery component is obtained in corresponding average attenuation amplitude of each discharge calculation period；
H9, according to the mapping relations of predetermined attenuation amplitude and lifetime stage, determine each average attenuation amplitude
Corresponding lifetime stage is using the lifetime stage as corresponding battery component.
8. a kind of device for detecting the battery component service life, which is characterized in that the device includes:
Calculation of capacity submodule, in real time or determining after receiving the battery parameter including discharge parameter of battery component
When the corresponding discharge parameter of each battery component based on the received, calculate each battery component at default recently time
Corresponding actual discharge capacity of several discharge calculation periods 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；
Service life determines submodule, holds for the actual discharge according to each battery component in each discharge calculation period
Amount and theoretical discharge capacity, calculate separately out each battery component and decline in each discharge calculation period corresponding first
Amount of decrease degree, and determined in corresponding first attenuation amplitude of each discharge calculation period according to each battery component each
The corresponding lifetime stage of the battery component；
It is described to calculate each battery component in the discharge calculation period corresponding actual discharge capacity of nearest preset times
The step of include:
H1, the discharge current according to each battery component in each discharge calculation period, starting and end time, and pass through
Preset formula calculates each battery component in the reference discharge capacity in each discharge calculation period；
H2, according to the mapping relations of predetermined battery core temperature and 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 period；
H3, each battery component of calculating is added into corresponding electric discharge in corresponding reference discharge capacity of each discharge calculation period
The corresponding decaying capacity of capacity attenuation rate, to obtain each battery component in the actual discharge capacity in each discharge calculation period；
The step of the discharge calculation period corresponding open-circuit voltage in nearest preset times that calculates each battery component
Suddenly include:
H4, according to each battery component in the corresponding battery core internal resistance of each discharge calculation period and discharge current, calculate each
Battery component is in corresponding battery core voltage value of each discharge calculation period；
H5, each battery component is calculated in corresponding battery core voltage value of each discharge calculation period and predetermined load voltage
The sum of value, to obtain each battery component in corresponding open-circuit voltage values of each discharge calculation period, alternatively, by each battery pack
Part corresponding battery core voltage value of each discharge calculation period presupposition multiple as each battery component in each discharge calculation
Period corresponding open-circuit voltage values.
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| CN110095721A (en) * | 2018-01-30 | 2019-08-06 | 中国电力科学研究院有限公司 | A kind of assessment method and model moving back fortune batteries of electric automobile calendar life |
| CN109856547A (en) * | 2019-01-30 | 2019-06-07 | 四川长虹新能源科技股份有限公司 | Alkaline Mn cell effective storage life method for rapidly testing |
| CN109941151B (en) * | 2019-01-30 | 2022-06-10 | 重庆海尔空调器有限公司 | Parking air conditioner and service life early warning method and system of vehicle battery |
| CN110618388B (en) * | 2019-09-04 | 2023-01-17 | 苏州浪潮智能科技有限公司 | Battery performance detection method and device |
| CN111123118B (en) * | 2019-12-30 | 2022-08-12 | Oppo广东移动通信有限公司 | Method and device for detecting micro short circuit of battery, equipment and storage medium |
| CN111665452B (en) * | 2020-06-30 | 2022-03-22 | 东风商用车有限公司 | Lithium ion storage battery monomer service life detection model |
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