CN109489845A - A kind of determining method and apparatus for simulating battery core real time temperature in discharge process - Google Patents
A kind of determining method and apparatus for simulating battery core real time temperature in discharge process Download PDFInfo
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- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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Abstract
Embodiment of the present invention discloses a kind of determining method and apparatus for simulating battery core real time temperature in discharge process.It include: to receive battery core state-of-charge initial setting, discharge current setting value and battery core temperature initial setting；Battery core state-of-charge real value is determined based on the battery core state-of-charge initial setting, discharge time and the discharge current setting value；Based on the battery core state-of-charge real value and the battery core temperature initial setting, battery core internal resistance and warm entropy coefficient are determined；Battery core heating power is calculated based on the battery core internal resistance, the temperature entropy coefficient, the discharge current setting value and the battery core temperature initial setting, and battery core real time temperature is determined based on the battery core heating power.Embodiment of the present invention can calculate the battery core temperature in simulation discharge process without temperature sensor, improve Security of test, can also improve the accuracy of battery core temperature.
Description
Technical field
Embodiment of the present invention is related to electric vehicle engineering field, in particular to battery core in a kind of determining simulation discharge process
The method and apparatus of real time temperature.
Background technique
Have in national newest standards " term and definition of automobile and trailer type " (GB/T 3730.1-2001) to automobile
Such as give a definition: by power drive, the vehicle of the non-track carrying with 4 or 4 or more wheels is mainly used for: carrying personnel
And (or) cargo；Draw the vehicle of carrying personnel and (or) cargo；Specific use.Energy shortage, oil crisis and environmental pollution
It grows in intensity, brings tremendous influence to people's lives, be directly related to the sustainable development of national economy and society.The world is each
State is all in active development new energy technology.
Energy shortage, oil crisis and environmental pollution grow in intensity, and bring tremendous influence, direct relation to people's lives
To the sustainable development of national economy and society.Countries in the world are all in active development new energy technology.Electric car is as a kind of
Reduce the new-energy automobile of consumption of petroleum, low pollution, low noise, it is considered to be solve the important way of energy crisis and environmental degradation
Diameter.The power battery drive motor of electric car generates power, therefore the performance of power battery and service life are to influence automobile
The key factor of energy.Most of power battery on electric car is lithium ion battery at present.
Currently, simulation discharge test can be executed for power battery, that is, it is not necessarily to power battery, is simulated by the Realization of Simulation
Electric discharge.
However, how to determine that the battery core real time temperature in simulation discharge process is a problem.
Summary of the invention
In view of this, the object of the present invention is to provide it is a kind of it is determining simulation discharge process in battery core real time temperature method and
Device.
The technical solution of embodiment of the present invention is as follows:
A kind of determining method for simulating battery core real time temperature in discharge process, comprising:
Receive battery core state-of-charge initial setting, discharge current setting value and battery core temperature initial setting；
Battery core lotus is determined based on the battery core state-of-charge initial setting, discharge time and the discharge current setting value
Electricity condition real value；
Based on the battery core state-of-charge real value and the battery core temperature initial setting, battery core internal resistance and warm entropy are determined
Coefficient；
It is initially set based on the battery core internal resistance, the temperature entropy coefficient, the discharge current setting value and the battery core temperature
It sets value and calculates battery core heating power, and battery core real time temperature is determined based on the battery core heating power.
In one embodiment, this method further include:
Update discharge time；
More based on the battery core state-of-charge initial setting, updated discharge time and the discharge current setting value
The new battery core state-of-charge real value；
The battery core temperature initial setting is substituted using the battery core real time temperature；
Based on updated battery core state-of-charge real value and the battery core real time temperature, updated battery core internal resistance is determined
With updated temperature entropy coefficient；
Based on the updated battery core internal resistance, the updated temperature entropy coefficient, the discharge current setting value and institute
It states battery core real time temperature and calculates updated battery core heating power, and determined and updated based on the updated battery core heating power
Battery core real time temperature afterwards.
In one embodiment, described based on battery core state-of-charge initial setting, discharge time and electric discharge electricity
Stream setting value determines that battery core state-of-charge real value includes:
Calculate battery core state-of-charge real value SOC, in which:
Wherein SOC0For battery core state-of-charge initial setting；Q is the rated capacity of battery core；T is discharge time；I is institute
State discharge current setting value.
In one embodiment, this method also includes: in advance
The dependence test of internal resistance and state of charge and battery core temperature is executed for the battery core；
The first corresponding table of internal resistance and state of charge and battery core temperature is generated based on test result；
It is described to be based on battery core state-of-charge real value and battery core temperature initial setting, determine that battery core internal resistance includes:
Using the battery core state-of-charge real value and the battery core temperature initial setting as search terms input described the
One corresponding table is corresponding as a result, and the corresponding result is determined as the battery core internal resistance to inquire.
In one embodiment, this method also includes: in advance
The dependence test of warm entropy coefficient and state of charge and battery core temperature is executed for the battery core；
The second corresponding table of warm entropy coefficient and state of charge and battery core temperature is generated based on test result；
It is described to be based on battery core state-of-charge real value and battery core temperature initial setting, determine that temperature entropy coefficient includes:
Using the battery core state-of-charge real value and the battery core temperature initial setting as search terms input described the
Two corresponding tables are corresponding as a result, and the corresponding result is determined as the temperature entropy coefficient to inquire.
In one embodiment, described based at the beginning of battery core internal resistance, warm entropy coefficient, discharge current setting value and battery core temperature
It includes: to calculate battery core heating power K that beginning setting value, which calculates battery core heating power,；K=I2*R+I*T0*M；Wherein I is the electric discharge
Current setting value, R are the battery core internal resistance；M is the temperature entropy coefficient；T0For battery core temperature initial setting；
It is described to determine that battery core real time temperature includes: to calculate battery core real time temperature T based on the battery core heating power；
Wherein CpFor the specific heat capacity of battery core, m is the quality of battery core, and t is discharge time.
A kind of determining device for simulating battery core real time temperature in discharge process, comprising:
Receiving module, it is initial for receiving battery core state-of-charge initial setting, discharge current setting value and battery core temperature
Setting value；
First determining module, for based on the battery core state-of-charge initial setting, discharge time and electric discharge electricity
Stream setting value determines battery core state-of-charge real value；
Second determining module, for being based on the battery core state-of-charge real value and the battery core temperature initial setting,
Determine battery core internal resistance and warm entropy coefficient；
Real time temperature determining module, for being based on the battery core internal resistance, the temperature entropy coefficient, the discharge current setting value
Battery core heating power is calculated with the battery core temperature initial setting, and determines that battery core is warm in real time based on the battery core heating power
Degree.
In one embodiment, further includes:
Update module, for updating discharge time；Based on the battery core state-of-charge initial setting, updated electric discharge
Time and the discharge current setting value update the battery core state-of-charge real value；Institute is substituted using the battery core real time temperature
State battery core temperature initial setting；Based on updated battery core state-of-charge real value and the battery core real time temperature, determine more
Battery core internal resistance and updated temperature entropy coefficient after new；Based on the updated battery core internal resistance, the updated temperature entropy system
Several, the described discharge current setting value and the battery core real time temperature calculate updated battery core heating power, and based on described in more
Battery core heating power after new determines updated battery core real time temperature.
In one embodiment, the first determining module, for calculating battery core state-of-charge real value SOC, in which:
Wherein SOC0For battery core state-of-charge initial setting；Q is the rated capacity of battery core；T is discharge time；I is institute
State discharge current setting value；And/or
The real time temperature determining module, for calculating battery core heating power K；K=I2*R+I*T0*M；Wherein I is described
Discharge current setting value, R are the battery core internal resistance；M is the temperature entropy coefficient；T0For battery core temperature initial setting；Calculate electricity
Core real time temperature T；Wherein CpFor the specific heat capacity of battery core, m is the quality of battery core, and t is discharge time.
In one embodiment, further includes:
Table module is built, for executing the dependence test of internal resistance and state of charge and battery core temperature for the battery core,
The first corresponding table of internal resistance and state of charge and battery core temperature is generated based on test result；Warm entropy system is executed for the battery core
Several dependence tests with state of charge and battery core temperature；Warm entropy coefficient and state of charge and electricity are generated based on test result
The corresponding table of the second of core temperature；
Second determining module is used for the battery core state-of-charge real value and the battery core temperature initial setting
It is corresponding as a result, and the corresponding result is determined as in the battery core to inquire as the corresponding table of search terms input described first
Resistance；The battery core state-of-charge real value and the battery core temperature initial setting is corresponding as search terms input described second
Table is corresponding as a result, and the corresponding result is determined as the temperature entropy coefficient to inquire.
It can be seen from the above technical proposal that embodiment of the present invention include: receive battery core state-of-charge initial setting,
Discharge current setting value and battery core temperature initial setting；Based on battery core state-of-charge initial setting, discharge time and electric discharge
Current setting value determines battery core state-of-charge real value；Based on battery core state-of-charge real value and battery core temperature initial setting,
Determine battery core internal resistance and warm entropy coefficient；Based on battery core internal resistance, warm entropy coefficient, discharge current setting value and battery core temperature initial setting up
Value calculates battery core heating power, and determines battery core real time temperature based on battery core heating power.As it can be seen that embodiment of the present invention is based on
Battery core internal resistance and warm entropy coefficient corresponding to battery core state-of-charge real value, can calculate battery core without temperature sensor
Temperature also improves Security of test.
In addition, the iterative calculation for being directed to battery core temperature is realized in the embodiment of the present invention also update based on discharge time, it can
To improve the accuracy of battery core temperature.
Detailed description of the invention
Only illustratively description and explain the present invention for the following drawings, not delimit the scope of the invention.
Fig. 1 is the method flow diagram that embodiment of the present invention determines battery core real time temperature in simulation discharge process.
Fig. 2 is the algorithm schematic diagram of embodiment of the present invention battery core fever model.
Fig. 3 is present invention determine that simulating the structure drawing of device of battery core real time temperature in discharge process.
Specific embodiment
In order to which the technical features, objects and effects of invention are more clearly understood, the Detailed description of the invention present invention is now compareed
Specific embodiment, identical label indicates identical part in the various figures.
It is succinct and intuitive in order to what is described, hereafter by describing several representative embodiments come to side of the invention
Case is illustrated.A large amount of details is only used for helping to understand the solution of the present invention in embodiment.However, it will be apparent that of the invention
Technical solution can be not limited to these details when realizing.In order to avoid unnecessarily having obscured the solution of the present invention, Yi Xieshi
It applies mode not described meticulously, but only gives frame.Hereinafter, " comprising " refers to " including but not limited to ", " root
According to ... " refer to " according at least to ..., but be not limited to according only to ... ".Due to the speech habits of Chinese, hereinafter without spy
When not pointing out the quantity of an ingredient, it is meant that the ingredient is either one or more, or can be regarded as at least one.
For the Discharge Simulation emulation testing for being not necessarily to real vehicle, embodiment of the present invention proposes one kind can determine the electric discharge mould
The technical solution of battery core real time temperature in quasi- emulation testing.
In embodiments of the present invention, the battery core fever model suitable for Discharge Simulation test is realized.Battery core fever
The input of model includes initial state-of-charge (SOC), battery core initial temperature and the discharge current of battery core；The battery core fever model
Output includes battery core real time temperature relevant to discharge time.
Preferably, various heat management simulated operations can be executed for the battery core real time temperature, such as when battery core is warm in real time
When degree is greater than threshold value, cooling s imulation operation is executed；When battery core real time temperature is less than threshold value, heating simulated operation is executed.
Fig. 1 is the method flow diagram that embodiment of the present invention determines battery core real time temperature in simulation discharge process.
As shown in Figure 1, this method comprises:
Step 101: receiving battery core state-of-charge initial setting, discharge current setting value and battery core temperature initial setting up
Value.
Herein, battery core state-of-charge initial setting, discharge current setting value and electricity provided by user be can receive
Core temperature initial setting.Wherein, discharge current setting value is negative value.
Step 102: battery core lotus is determined based on battery core state-of-charge initial setting, discharge time and discharge current setting value
Electricity condition real value.
In one embodiment, battery core state-of-charge real value SOC is calculated, in which:
Wherein SOC0For battery core state-of-charge initial setting；Q is the rated capacity of battery core；T is discharge time；I is to put
Electric current setting value.
Step 103: being based on battery core state-of-charge real value and battery core temperature initial setting, determine battery core internal resistance and warm entropy
Coefficient.
Herein, this method also includes: to execute the related of internal resistance and state of charge and battery core temperature for battery core in advance
Property test；The first corresponding table of internal resistance and state of charge and battery core temperature is generated based on test result；Wherein it is based on battery core lotus
Electricity condition real value and battery core temperature initial setting determine that battery core internal resistance includes: by battery core state-of-charge real value and described
Battery core temperature initial setting is inquired corresponding as a result, and corresponding result is determined as electricity as the corresponding table of search terms input first
In-core resistance.
Herein, this method also includes: to execute warm entropy coefficient and state of charge and battery core temperature for battery core in advance
Dependence test；The second corresponding table of warm entropy coefficient and state of charge and battery core temperature is generated based on test result；Based on electricity
Core state-of-charge real value and battery core temperature initial setting, determine temperature entropy coefficient include: by battery core state-of-charge real value and
Battery core temperature initial setting is inquired corresponding as a result, and corresponding result is determined as temperature as the corresponding table of search terms input second
Entropy coefficient.
Step 104: being calculated based on battery core internal resistance, warm entropy coefficient, discharge current setting value and battery core temperature initial setting
Battery core heating power, and battery core real time temperature is determined based on battery core heating power.
Specifically, calculating battery core heating power K；K=I2*R+I*T0*M；Wherein I is discharge current setting value, and R is battery core
Internal resistance；M is warm entropy coefficient；T0For battery core temperature initial setting.Moreover, determining that battery core is warm in real time based on battery core heating power K
Degree includes: to calculate battery core real time temperature T；Wherein CpFor the specific heat capacity of battery core, m is the quality of battery core, and t is
Discharge time.
As it can be seen that the battery core real time temperature corresponding to discharge time can be calculated based on process shown in Fig. 1.Pass through utilization
The battery core real time temperature replaces battery core temperature initial setting, and process shown in Fig. 1 can be executed with iteration, updates battery core reality to realize
Shi Wendu.
In one embodiment, this method further include:
Update discharge time；
Battery core lotus is updated based on battery core state-of-charge initial setting, updated discharge time and discharge current setting value
Electricity condition real value；
Battery core temperature initial setting is substituted using battery core real time temperature；
Based on updated battery core state-of-charge real value and battery core real time temperature, updated battery core internal resistance and more is determined
Warm entropy coefficient after new；
Based on updated battery core internal resistance, updated temperature entropy coefficient, discharge current setting value and battery core real time temperature
Updated battery core heating power is calculated, and updated battery core real time temperature is determined based on updated battery core heating power.
Citing, for Discharge Simulation test scene, it is assumed that the battery core state-of-charge initial setting of user's input is SOC0；
Q is the rated capacity of battery core；T1 is the first discharge time point；The discharge current setting value of user's input is I；The electricity of user's input
Core temperature initial setting is T0, wherein discharge current setting value I is negative value.
When process shown in Fig. 1 brings into operation, battery core state-of-charge real value when the first discharge time point t1 is calculated
SOC1, in which:
Then, it is determined that corresponding to battery core state-of-charge real value SOC1 and battery core temperature initial setting T0Battery core in
Resistance and warm entropy coefficient.Wherein: the dependence test of internal resistance and state of charge and battery core temperature can be executed for battery core in advance,
Based on test result generate internal resistance and state of charge and battery core temperature the first corresponding table, for battery core execute temperature entropy coefficient and
The dependence test of state of charge and battery core temperature generates warm entropy coefficient and state of charge and battery core temperature based on test result
The corresponding table of the second of degree, by battery core state-of-charge real value SOC1 and battery core temperature initial setting T0As search terms input the
One corresponding table is to inquire corresponding as a result, and corresponding result is determined as battery core internal resistance R1；By battery core state-of-charge real value SOC1
With battery core temperature initial setting T0As the corresponding table of search terms input second to inquire corresponding as a result, and determining corresponding result
For warm entropy coefficient M1.
Then, battery core heating power K1 is calculated；K1=I2*R1+I*T0*M1.Then, it calculates and corresponded to for the first discharge time
The battery core real time temperature T1 of point t1；
Then, discharge test proceeds to the second discharge time point t2 from the first discharge time point t1.
At this point, battery core state-of-charge real value SOC2 when calculating the second discharge time point t2, in which:
And electricity is substituted using the battery core real time temperature T1 of the first discharge time point t1
Core temperature initial setting T0。
Then, it is determined that the battery core corresponding to battery core state-of-charge real value SOC2 and the first discharge time point t1 is warm in real time
Spend battery core internal resistance and the temperature entropy coefficient of T1.Wherein: internal resistance and state of charge and battery core temperature can be executed for battery core in advance
Dependence test, based on test result generate internal resistance and state of charge and battery core temperature the first corresponding table, for battery core
The dependence test for executing warm entropy coefficient and state of charge and battery core temperature, based on test result generate temperature entropy coefficient with it is charged
Second corresponding table of state value and battery core temperature, by the battery core of battery core state-of-charge real value SOC2 and the first discharge time point t1
Real time temperature T1 inquires corresponding as a result, and corresponding result is determined as battery core internal resistance as the corresponding table of search terms input first
R2；Using the battery core real time temperature T1 of battery core state-of-charge real value SOC2 and the first discharge time point t1 as search terms input the
Two corresponding tables are to inquire corresponding as a result, and corresponding result is determined as warm entropy coefficient M2.
Then, battery core heating power K2 is calculated；K2=I2*R2+I*T1*M2.Then, it calculates and corresponded to for the second discharge time
The battery core real time temperature T2 of point t2；
With the progress of time, continue to replace the upper calculated battery core of wheel warm in real time with new calculated battery core real time temperature
Degree, to realize the interative computation for being directed to battery core real time temperature.
Fig. 2 is the algorithm schematic diagram of embodiment of the present invention battery core fever model.In Fig. 2, illustrates simulation and discharged
The interative computation process of battery core real time temperature in journey.
Based on foregoing description, embodiment of the present invention also proposed battery core real time temperature in a kind of determining simulation discharge process
Device.
Fig. 3 is present invention determine that simulating the structure drawing of device of battery core real time temperature in discharge process.
As shown in figure 3, the device includes:
Receiving module 301, at the beginning of receiving battery core state-of-charge initial setting, discharge current setting value and battery core temperature
Beginning setting value；
First determining module 302, for being based on the battery core state-of-charge initial setting, discharge time and the electric discharge
Current setting value determines battery core state-of-charge real value；
Second determining module 303, for being based on the battery core state-of-charge real value and the battery core temperature initial setting up
Value determines battery core internal resistance and warm entropy coefficient；
Real time temperature determining module 304, for being set based on the battery core internal resistance, the temperature entropy coefficient, the discharge current
It sets value and the battery core temperature initial setting calculates battery core heating power, and battery core reality is determined based on the battery core heating power
Shi Wendu.
In one embodiment, further includes:
Update module 305, for updating discharge time；Based on the battery core state-of-charge initial setting, updated
Discharge time and the discharge current setting value update the battery core state-of-charge real value；It is replaced using the battery core real time temperature
For the battery core temperature initial setting；Based on updated battery core state-of-charge real value and the battery core real time temperature, really
Fixed updated battery core internal resistance and updated temperature entropy coefficient；Based on the updated battery core internal resistance, the updated temperature
Entropy coefficient, the discharge current setting value and the battery core real time temperature calculate updated battery core heating power, and are based on institute
It states updated battery core heating power and determines updated battery core real time temperature.
In one embodiment, the first determining module 302, for calculating battery core state-of-charge real value SOC, in which:
Wherein SOC0For battery core state-of-charge initial setting；Q is the volume of battery core
Constant volume；T is discharge time；I is the discharge current setting value.
In one embodiment, real time temperature determining module 304, for calculating battery core heating power K；K=I2*R+I*
T0*M；Wherein I is discharge current setting value, and R is battery core internal resistance；M is warm entropy coefficient；T0For battery core temperature initial setting；It calculates
Battery core real time temperature T；Wherein CpFor the specific heat capacity of battery core, m is the quality of battery core, and t is discharge time.
In one embodiment, further includes:
Table module 306 is built, for executing the dependence test of internal resistance and state of charge and battery core temperature, base for battery core
The first corresponding table of internal resistance and state of charge and battery core temperature is generated in test result；Warm entropy coefficient and lotus are executed for battery core
The dependence test of electricity condition value and battery core temperature；Warm entropy coefficient and state of charge and battery core temperature are generated based on test result
The second corresponding table；
Second determining module 303, for using battery core state-of-charge real value and battery core temperature initial setting as retrieval
The corresponding table of item input first is to inquire corresponding as a result, and corresponding result is determined as the battery core internal resistance；By battery core state-of-charge
Real value and battery core temperature initial setting are inquired corresponding as a result, and will corresponding result as the corresponding table of search terms input second
It is determined as warm entropy coefficient.
In conclusion in embodiments of the present invention, receiving battery core state-of-charge initial setting, discharge current setting value
With battery core temperature initial setting；It is determined based on battery core state-of-charge initial setting, discharge time and discharge current setting value
Battery core state-of-charge real value；Based on battery core state-of-charge real value and battery core temperature initial setting, determine battery core internal resistance and
Warm entropy coefficient；Battery core fever is calculated based on battery core internal resistance, warm entropy coefficient, discharge current setting value and battery core temperature initial setting
Power, and battery core real time temperature is determined based on battery core heating power.As it can be seen that embodiment of the present invention is charged based on battery core is corresponded to
The battery core internal resistance of state real value and warm entropy coefficient, can calculate battery core temperature without temperature sensor, also improve
Security of test.
In addition, the iterative calculation for being directed to battery core temperature is realized in the embodiment of the present invention also update based on discharge time, it can
To improve the accuracy of battery core temperature.
The method for intending battery core real time temperature in discharge process embodiment of the present invention proposes cover half really can be applied to
In various types of new-energy automobile tests.For example, can be applied to mixed power electric car (HEV), pure electric automobile
(BEV), fuel cell electric vehicle (FCEV) and other new energy (such as supercapacitor, flywheel high-efficiency energy storage vehicle) automobiles
Deng.
It should be noted that step and module not all in above-mentioned each process and each structure chart be all it is necessary, can
To ignore certain steps or module according to the actual needs.Each step execution sequence be not it is fixed, can according to need into
Row adjustment.The division of each module is intended merely to facilitate the division functionally that description uses, and in actual implementation, a module can
It is realized with point by multiple modules, the function of multiple modules can also be realized by the same module, these modules can be located at same
In a equipment, it can also be located in different equipment.
Hardware module in each embodiment mechanically or can be realized electronically.For example, a hardware module
It may include that the permanent circuit specially designed or logical device (such as application specific processor, such as FPGA or ASIC) are specific for completing
Operation.Hardware module also may include programmable logic device or circuit by software provisional configuration (as included general procedure
Device or other programmable processors) for executing specific operation.Mechanical system is used as specific, or using dedicated permanent
Property circuit, or Lai Shixian hardware module (such as is configured) by software using the circuit of provisional configuration, can according to cost with
Temporal consideration is to determine.
The present invention also provides a kind of machine readable storage mediums, and storage is for executing a machine such as the above method
Instruction.Specifically, system or device equipped with storage medium can be provided, store realize above-mentioned reality on the storage medium
The software program code of the function of any embodiment in example is applied, and makes the computer (or CPU or MPU) of the system or device
Read and execute the program code being stored in a storage medium.Further, it is also possible to make to calculate by the instruction based on program code
Operating system of hands- operation etc. completes partly or completely practical operation.The program that can also will be read from storage medium
The extension list being connected to a computer is write in memory set in the expansion board in insertion computer or write to code
In the memory being arranged in member, then the instruction based on program code makes the CPU etc. being mounted on expansion board or expanding element
Come execution part and whole practical operations, to realize the function of any embodiment in above embodiment.
Storage medium embodiment for providing program code include floppy disk, hard disk, magneto-optic disk, CD (such as CD-ROM,
CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), tape, non-volatile memory card and ROM.Selectively,
It can be by communication network from download program code on server computer or cloud.
Detailed displaying and explanation carried out to the present invention above by attached drawing and preferred embodiment, however the present invention is not limited to
These embodiments having revealed that, base could be aware that with above-mentioned multiple embodiment those skilled in the art, can combine above-mentioned difference
Code audit means in embodiment obtain the more embodiments of the present invention, these embodiments also protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of method of battery core real time temperature in determining simulation discharge process characterized by comprising
Receive battery core state-of-charge initial setting, discharge current setting value and battery core temperature initial setting；
The charged shape of battery core is determined based on the battery core state-of-charge initial setting, discharge time and the discharge current setting value
State real value；
Based on the battery core state-of-charge real value and the battery core temperature initial setting, battery core internal resistance and warm entropy system are determined
Number；
Based on the battery core internal resistance, the temperature entropy coefficient, the discharge current setting value and the battery core temperature initial setting
Battery core heating power is calculated, and battery core real time temperature is determined based on the battery core heating power.
2. the method for battery core real time temperature in determining simulation discharge process according to claim 1, which is characterized in that the party
Method further include:
Update discharge time；
Institute is updated based on the battery core state-of-charge initial setting, updated discharge time and the discharge current setting value
State battery core state-of-charge real value；
The battery core temperature initial setting is substituted using the battery core real time temperature；
Based on updated battery core state-of-charge real value and the battery core real time temperature, updated battery core internal resistance and more is determined
Warm entropy coefficient after new；
Based on the updated battery core internal resistance, the updated temperature entropy coefficient, the discharge current setting value and the electricity
Core real time temperature calculates updated battery core heating power, and is determined based on the updated battery core heating power updated
Battery core real time temperature.
3. the method for battery core real time temperature in determining simulation discharge process according to claim 1, which is characterized in that described
Battery core state-of-charge real value is determined based on battery core state-of-charge initial setting, discharge time and the discharge current setting value
Include:
Calculate battery core state-of-charge real value SOC, in which:
Wherein SOC0For battery core state-of-charge initial setting；Q is the rated capacity of battery core；T is discharge time；I is the electric discharge
Current setting value.
4. the method for battery core real time temperature in determining simulation discharge process according to claim 1, which is characterized in that the party
Method also includes: in advance
The dependence test of internal resistance and state of charge and battery core temperature is executed for the battery core；
The first corresponding table of internal resistance and state of charge and battery core temperature is generated based on test result；
It is described to be based on battery core state-of-charge real value and battery core temperature initial setting, determine that battery core internal resistance includes:
Using the battery core state-of-charge real value and the battery core temperature initial setting as described first pair of search terms input
It is corresponding as a result, and the corresponding result is determined as the battery core internal resistance to inquire to answer table.
5. the method for battery core real time temperature in determining simulation discharge process according to claim 1, which is characterized in that the party
Method also includes: in advance
The dependence test of warm entropy coefficient and state of charge and battery core temperature is executed for the battery core；
The second corresponding table of warm entropy coefficient and state of charge and battery core temperature is generated based on test result；
It is described to be based on battery core state-of-charge real value and battery core temperature initial setting, determine that temperature entropy coefficient includes:
Using the battery core state-of-charge real value and the battery core temperature initial setting as described second pair of search terms input
It is corresponding as a result, and the corresponding result is determined as the temperature entropy coefficient to inquire to answer table.
6. the method for battery core real time temperature in determining simulation discharge process according to claim 1, which is characterized in that
It is described that battery core fever is calculated based on battery core internal resistance, warm entropy coefficient, discharge current setting value and battery core temperature initial setting
Power includes: to calculate battery core heating power K；K=I2*R+I*T0*M；Wherein I is the discharge current setting value, and R is the electricity
In-core resistance；M is the temperature entropy coefficient；T0For battery core temperature initial setting；
It is described to determine that battery core real time temperature includes: to calculate battery core real time temperature T based on the battery core heating power；
Wherein CpFor the specific heat capacity of battery core, m is the quality of battery core, and t is discharge time.
7. the device of battery core real time temperature in a kind of determining simulation discharge process characterized by comprising
Receiving module, for receiving battery core state-of-charge initial setting, discharge current setting value and battery core temperature initial setting up
Value；
First determining module, for being set based on the battery core state-of-charge initial setting, discharge time and the discharge current
It sets value and determines battery core state-of-charge real value；
Second determining module is determined for being based on the battery core state-of-charge real value and the battery core temperature initial setting
Battery core internal resistance and warm entropy coefficient；
Real time temperature determining module, for being based on the battery core internal resistance, the temperature entropy coefficient, the discharge current setting value and institute
It states battery core temperature initial setting and calculates battery core heating power, and battery core real time temperature is determined based on the battery core heating power.
8. the device of battery core real time temperature in determining simulation discharge process according to claim 7, which is characterized in that also wrap
It includes:
Update module, for updating discharge time；Based on the battery core state-of-charge initial setting, updated discharge time
The battery core state-of-charge real value is updated with the discharge current setting value；The electricity is substituted using the battery core real time temperature
Core temperature initial setting；Based on updated battery core state-of-charge real value and the battery core real time temperature, determine after updating
Battery core internal resistance and updated temperature entropy coefficient；Based on the updated battery core internal resistance, the updated temperature entropy coefficient, institute
It states discharge current setting value and the battery core real time temperature calculates updated battery core heating power, and based on described updated
Battery core heating power determines updated battery core real time temperature.
9. the device of battery core real time temperature in determining simulation discharge process according to claim 7, which is characterized in that
First determining module, for calculating battery core state-of-charge real value SOC, in which:
100%；
Wherein SOC0For battery core state-of-charge initial setting；Q is the rated capacity of battery core；T is discharge time；I is the electric discharge
Current setting value；And/or
The real time temperature determining module, for calculating battery core heating power K；K=I2*R+I*T0*M；Wherein I is the electric discharge
Current setting value, R are the battery core internal resistance；M is the temperature entropy coefficient；T0For battery core temperature initial setting；It is real to calculate battery core
Shi Wendu T；Wherein CpFor the specific heat capacity of battery core, m is the quality of battery core, and t is discharge time.
10. the device of battery core real time temperature in determining simulation discharge process according to claim 7, which is characterized in that also
Include:
Table module is built, for executing the dependence test of internal resistance and state of charge and battery core temperature for the battery core, is based on
First corresponding table of test result generation internal resistance and state of charge and battery core temperature；For the battery core execute warm entropy coefficient with
The dependence test of state of charge and battery core temperature；Warm entropy coefficient and state of charge and battery core temperature are generated based on test result
The corresponding table of the second of degree；
Second determining module, for using the battery core state-of-charge real value and the battery core temperature initial setting as
The corresponding table of search terms input described first is corresponding as a result, and the corresponding result is determined as the battery core internal resistance to inquire；It will
The battery core state-of-charge real value and the battery core temperature initial setting as the corresponding table of search terms input described second with
Inquiry is corresponding as a result, and the corresponding result is determined as the temperature entropy coefficient.
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