CN108987848A - A kind of temprature control method of battery pack - Google Patents
A kind of temprature control method of battery pack Download PDFInfo
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- CN108987848A CN108987848A CN201810800726.1A CN201810800726A CN108987848A CN 108987848 A CN108987848 A CN 108987848A CN 201810800726 A CN201810800726 A CN 201810800726A CN 108987848 A CN108987848 A CN 108987848A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
Abstract
The present invention provides a kind of temprature control methods of battery pack, the battery pack is equipped with multiple temperature sensors for obtaining multiple temperature sampling values, and the temprature control method includes: the current temperature value and maximum temperature difference value that the battery pack is obtained based on the multiple temperature sampling value；Heat management mode and heat management parameter are determined based on the current temperature value and the maximum temperature difference value；And the heat management mode is executed with the determining heat management state modulator heat management system.
Description
Technical field
The present invention relates to new-energy automobile field more particularly to the temprature control methods of the battery pack of new-energy automobile.
Background technique
New-energy automobile heat management system, generally comprising cooling device, (include: air-conditioning system, Chiller battery are cooling
Device, refrigerant etc.), heating device (PTC, electric heating film, heat pump system etc.), water pump, water-cooled plate, pipeline, valve, battery management control
Device processed, battery thermal management controller, battery core etc..
With the promotion of battery core technology, the operating temperature range of battery is more and more wider, usually can be in -20 DEG C to 60 DEG C of model
Interior work is enclosed, the battery thermal management control strategy of existing new-energy automobile does not consider the temperature difference of entire battery pack or do not join the temperature difference
Number is put into the control parameter of heat management, although not considering that the heat management system of the battery pack temperature difference can be simply many, not
Conducive to the equilibrium of battery pack inside battery core, to reduce the service life and energy ecology of battery pack.
The present invention starts with from the power control of the temperature difference and heat management device, proposes a kind of temprature control method of battery pack,
The temperature difference that can effectively reduce battery pack saves unnecessary energy, extends the service life of battery pack.
Summary of the invention
A brief summary of one or more aspects is given below to provide to the basic comprehension in terms of these.This general introduction is not
The extensive overview of all aspects contemplated, and be both not intended to identify critical or decisive element in all aspects also non-
Attempt to define the range in terms of any or all.Its unique purpose is to provide the one of one or more aspects in simplified form
A little concepts are with the sequence for more detailed description given later.
According to an aspect of the present invention, a kind of temprature control method of battery pack is provided, the battery pack is equipped with multiple
For temperature sensor for obtaining multiple temperature sampling values, the temprature control method includes: based on the multiple temperature sampling value
Obtain the current temperature value and maximum temperature difference value of the battery pack；It is determined based on the current temperature value and the maximum temperature difference value
Heat management mode and heat management parameter；And the heat management is executed with the determining heat management state modulator heat management system
Mode.
Further, heat management mode and heat management parameter are determined based on the current temperature value and the maximum temperature difference value
Comprise determining that temperature range locating for the current temperature value；Determine that the heat management mode is to add based on the temperature range
Heat, cooling or natural heat-exchange；If the heat management mode is to be heated or cooled, judge whether the maximum temperature difference value exceeds institute
State that temperature range is corresponding to allow temperature difference；And if the maximum temperature difference value is corresponding without departing from the temperature range allows temperature
Difference, then the heat management parameter includes the first water inlet target temperature corresponding with the temperature range, if the maximum temperature
Difference allows temperature difference beyond the temperature range is corresponding, then the heat management parameter includes corresponding with the temperature range the
Two water inlet target temperatures, wherein the second water inlet target temperature is lower than described when heat management mode is heating mode
First water inlet target temperature, when heat management mode is cooling, the second water inlet target temperature is higher than described first and enters
Mouth of a river target temperature.
Further, the difference between the first water inlet target temperature and the second water inlet target temperature depends on
Temperature difference is allowed in described.
Further, the difference between the first water inlet target temperature and the second water inlet target temperature is equal to
It is described that temperature difference is allowed to subtract temperature sensor error margin.
Further, the temperature sensor error margin is 2 °.
Further, described to allow the temperature difference to be when the current temperature value is between -15 ° to -10 ° or 45 ° to 50 °
10 °, when the current temperature value is between -10 ° to 5 ° or 35 ° to 45 °, it is described allow the temperature difference be 8 °.
Further, if the heat management mode is to be heated or cooled, higher temperature range corresponds to higher first and enters
Mouth of a river target temperature.
Further, if the heat management mode is to be heated or cooled, the heat management parameter includes 100% PWM water
Pump power, if the heat management mode is natural heat-exchange, the heat management parameter includes 50% PWM pump power.
Further, if the heat management mode is to be heated or cooled, the heat management parameter includes and the temperature
The corresponding BMS power request limit value in section.
Further, if the heat management mode is heating, the corresponding BMS power request limit value of higher temperature range
BMS power request limit value corresponding less than or equal to lower temperature range, if the heat management mode is cooling, higher temperature
It spends the corresponding BMS power request limit value in section and is more than or equal to the corresponding BMS power request limit value of lower temperature range.
Further, the temprature control method further include: if the maximum temperature difference is corresponding beyond the temperature range
Allow temperature difference, then BMS power is reduced into half at predetermined time intervals, until the maximum temperature difference is without departing from the temperature
Section is corresponding to allow temperature difference.
Further, the predetermined time is 30 seconds.
Further, the temprature control method further include: determined based on temperature range locating for the current temperature value
Rate of charge limit value；If the heat management mode is heating mode, the corresponding rate of charge limit value of higher temperature range is big
In equal to the corresponding rate of charge limit value of lower temperature range；If the heat management mode is refrigerating mode, higher temperature
It spends the corresponding rate of charge limit value in section and is less than or equal to the corresponding rate of charge limit value of lower temperature range.
Further, the temprature control method further include: judge the current temperature value whether be greater than high temperature threshold value or
Lower than low temperature threshold, if the current temperature value is greater than the high temperature threshold value, directly determining heat management mode is heating mode
And heat management parameter is the BMS power request limit value of quota, the highest heating PWM water pump of water inlet target temperature and quota
Power；If the current temperature value is lower than the low temperature threshold, directly determining heat management mode is refrigerating mode and heat management
Parameter is the PWM pump power of the BMS power request limit value of quota, minimum cooling water inlet target temperature and quota.
Further, when mean value≤0 DEG C of the multiple temperature sampling value, the current temperature value takes minimum temperature to adopt
Sample value, when mean value >=35 DEG C of the multiple temperature sampling value, the current temperature value takes maximum temperature sampled value, otherwise institute
State the average value that current temperature value takes the maxima and minima of the multiple temperature sampling value.
Further, the current temperature value and maximum temperature that the battery pack is obtained based on the multiple temperature sampling value
Difference includes: based on obtaining working as the battery pack with data of the mean bias within 10 ° in the multiple temperature sampling value
Preceding temperature value and maximum temperature difference value.
According to an aspect of the present invention, a kind of temperature control equipment of battery pack is provided, the battery pack is equipped with multiple
Temperature sensor includes processor and is coupled to the processor for obtaining multiple temperature sampling values, the temperature control equipment
Memory, be stored with computer instruction on the memory, the processor is implemented such as when executing the computer instruction
The step of method described in any of the above embodiments.
According to an aspect of the present invention, a kind of computer-readable medium is provided, computer-readable instruction is stored thereon with,
The computer-readable instruction implements the step of method described in any of the above embodiments when executed by the processor.
Detailed description of the invention
After the detailed description for reading embodiment of the disclosure in conjunction with the following drawings, it better understood when of the invention
Features described above and advantage.In the accompanying drawings, each component is not necessarily drawn to scale, and has similar correlation properties or feature
Component may have same or similar appended drawing reference.
Fig. 1 is the flow chart for the embodiment being painted according to an aspect of the present invention.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.Note that below in conjunction with attached drawing and specifically real
The aspects for applying example description is merely exemplary, and is understood not to carry out any restrictions to protection scope of the present invention.
It is unfavorable for maintaining to solve heat management difficulty and existing thermal management algorithm caused by battery pack internal temperature unevenness
The problem of service life of battery pack, the present invention provide a kind of temprature control method of battery pack, and this method can be based on battery pack
The internal temperature difference takes different heat management modes, the temperature unevenness problem being reduced as far as inside battery pack, to prolong
The service life of long battery pack.
In one embodiment, as shown in Figure 1, the temprature control method 100 of the battery pack includes:
S110: the current temperature value T of the battery pack is obtained based on multiple temperature sampling valuesPAnd maximum temperature difference value TD；
S120: it is based on current temperature value TPAnd maximum temperature difference value TDDetermine heat management mode and heat management parameter；
S130: heat management mode is executed with determining heat management state modulator hot-pipe system.
In step s 110, in the prior art, battery pack is internal or external is equipped with multiple temperature sensors to monitor at any time
The temperature conditions of battery pack, multiple temperature sampling value are to be detected by multiple temperature sensors in battery pack.Due to
The health status of battery core is different inside battery pack or the factors such as temperature distributing disproportionation of water cooling tube, and there may be differences inside battery pack
It is worth biggish temperature sampling value, but those extreme values are as a parameter to determine that the temperature of battery pack is clearly unreasonable, therefore can
First those temperature sampling values are pre-processed, such as first find out the average value of those temperature sampling values, then calculate each temperature and adopt
The difference of sample value and average value then deletes the corresponding temperature sampling value of the difference when difference is greater than such as 10 DEG C of a certain threshold value.Again
Current temperature value T is calculated using by pretreated temperature sampling valuePAnd maximum temperature difference value TD。
Further, if being less than or equal to 0 based on those temperature sampling values after pretreatment come calculated temperature mean value
DEG C, then TP=Tmin, TD=Tmax- Tmin.If big come calculated temperature mean value based on those temperature sampling values after pretreatment
In being equal to 35 DEG C, then TP=Tmax, TD=Tmax- Tmin.When based on those temperature sampling values after pretreatment come calculated temperature
When spending mean value between 0 DEG C to 35 DEG C, TP=(Tmax+Tmin)/2, TD=Tmax- Tmin.Wherein Tmax、TminRespectively those temperature
Maximum value, minimum value in sampled value.
Step S120 is further comprising the steps of:
S121: it is based on current temperature value TPLocating temperature range simultaneously determines heat management mode based on the temperature range；
S122: in conjunction with current temperature value TPLocating temperature range and heat management mode determines heat management parameter；
S1221: judge maximum temperature difference value TDWhether current temperature value T is exceededPLocating temperature range is corresponding to allow
Temperature difference, if maximum temperature difference value TDBeyond allowing temperature difference then to execute S1222, if executing S1223 without departing from if；
S1222: heat management parameter includes current temperature value TPThe corresponding first water inlet target of locating temperature range
Temperature；
S1223: heat management parameter includes current temperature value TPThe corresponding second water inlet target of locating temperature range
Temperature.
Further, in step S121, the temperature range locating for the current temperature value can be divided into (- ∞, -15), [-
15,-10),[-10,-5),[-5,0),[0,5),[5,35),[35,40),[40,45),[45,50),[50,+∞).Humidity province
Between (- ∞, -15), [- 15, -10), [- 10, -5), [- 5,0), [0,5) correspond to heating mode, [5,35) corresponding to changing naturally
Heat pattern, temperature range [35,40), [40,45), [45,50), [50 ,+∞) correspond to refrigerating mode.
Further, in step S1221, [- 15, -10), [45,50) it is corresponding allow temperature difference be 10 DEG C, [- 10, -
5), [- 5,0), [0,5), [35,40), [40,45) it is corresponding that allow temperature difference be 8 DEG C, [5,35) corresponding allow the temperature difference to be
5℃。
It is appreciated that heat management mode should set an easy to reach when it is beyond temperature difference is allowed that the temperature difference is larger
Water inlet temperature achievees the purpose that equalization temperature in order to gradually reduce the temperature difference of each temperature sensor test point.Therefore,
When heat management mode is heating mode, the corresponding second water inlet target temperature of the temperature range is lower than the first water inlet target
Temperature；When the heat management mode is refrigerating mode, the corresponding second water inlet target temperature of the temperature range is higher than first and enters
Mouth of a river temperature.
Further, the first water inlet target temperature and the second water inlet target temperature corresponding to same temperature section it
Between difference depend on this allow temperature difference.
Further, the first water inlet target temperature and the second water inlet target temperature corresponding to same temperature section
Between difference be equal to this allow temperature difference to subtract temperature sensor error margin, such as 2 DEG C.
It is appreciated that working as current temperature value TPLocating temperature range is extreme case, that is, electricity when being in (- ∞, -15)
Core is in low performance working range, in [50 ,+∞) when, battery pack has been not at safe temperature range, is needed at this time to electricity
Chi Bao progress is very fast to be heated or cooled, therefore carries out very fast processing to battery pack using extreme water inlet target temperature.Such as
As current temperature value TPWhen locating temperature range is (- ∞, -15), the first water inlet target temperature and this second enter water
Mouth target temperature is disposed as 45 DEG C, and is not provided with allowing temperature difference.As worked as current temperature value TPLocating temperature range is
[50 ,+∞) when, the first water inlet target temperature and the second water inlet target temperature are disposed as 20 DEG C, and are not provided with holding
Perhaps temperature difference.
Further, temperature value value T in this priorPLocating temperature range [- 15, -10), [- 10, -5), [- 5,0),
[0,5), [5,35), [35,40), [40,45), [45,50) when, the corresponding first water inlet target temperature of higher temperature range
It is higher.
Further, which further includes PWM pump power.Therefore further include step S1224 in step S122:
When heat management mode is in, and mode is heated or cooled, PWM pump power is 100%；When heat management mode is natural heat-exchange mould
When formula, PWM pump power is 50%.
Further, which further includes BMS (Battery management system, battery management system
System) power request limit value, that is, demandable maximum BMS power, the BMS power request limit value also with current temperature value TPIt is locating
Temperature range it is corresponding.
When the corresponding heat management mode of temperature range is heating, the corresponding BMS power request limit of higher temperature range
Value is less than or equal to the corresponding BMS power request limit value of lower temperature range.When the corresponding heat management mode of temperature range is cold
When but, the corresponding BMS power request limit value of higher temperature range, which is more than or equal to the corresponding BMS power of lower temperature range, is asked
Seek limit value.
Step S122 further includes step S1225: and temperature range [- 15, -10) corresponding BMS power request limit value is 5kW；
Temperature range [- 10, -5) corresponding BMS power request limit value is 3kW；Temperature range [- 5,0) corresponding BMS power request limit
Value is 3kW, and temperature range [0,5) corresponding BMS power request limit value is 1.75kW, temperature range [35,40) corresponding BMS function
It is 1kW that rate, which requests limit value, and temperature range [40,45) corresponding BMS power request limit value is 2kW, temperature range [45,50) it is corresponding
BMS power request limit value be 4kW.Relatively, for the current temperature value be in extreme case, that is, temperature range be (- ∞ ,-
15) or [50 ,+∞) when, corresponding BMS power request limit value be quota BMS power, that is, 5kW.
Further, step S1222 further include: BMS power is reduced into half at predetermined time intervals, described in most
The temperature difference is corresponding without departing from the temperature range greatly allows temperature difference.
Further, which may be configured as 30s.
Further, heat management parameter further includes rate of charge limit value, but that heat management mode be heating mode when, compared with
The corresponding rate of charge limit value of high temperature range is more than or equal to the corresponding rate of charge limit value of lower temperature range；Work as heat pipe
When reason mode is refrigerating mode, the corresponding rate of charge limit value of higher temperature range is less than or equal to lower temperature range correspondence
Rate of charge limit value.
Step S122 further includes step S1226: and temperature range [- 15, -10) corresponding rate of charge limit value is 0.1C；Temperature
Spend section [- 10, -5) corresponding rate of charge limit value is 0.2C；Temperature range [- 5,0) corresponding rate of charge limit value is
0.2C, and temperature range [0,5) corresponding rate of charge limit value is 0.6C, temperature range [35,40) corresponding rate of charge limit value
For 1.5C, and temperature range [40,45) corresponding rate of charge limit value is 1C, temperature range [45,50) corresponding rate of charge limit
Value is 0.2C.Relatively, for the current temperature value be in extreme case, that is, temperature range be (- ∞, -15) or [50 ,+∞)
When, do not allow to charge to battery pack, therefore corresponding BMS power request limit value is 0.Those skilled in the art can manage
It solves, analysis lithium is prevented under low temperature, and then the crystalline lithium for preventing electric core membrane to be precipitated pierces through, to extend the battery core service life；Under high temperature
It prevents battery from thermal runaway occurs, and then battery pack is avoided to burn.
Further, when vehicle is switched on and detects, if current temperature value TPWhen locating temperature range is [0,40] then
It is not turned on heat management system, and only opens water pump when battery pack temperature exceeds temperature difference requirement, samming is carried out to battery pack.
Although for simplify explain the above method is illustrated to and is described as a series of actions, it should be understood that and understand,
The order that these methods are not acted is limited, because according to one or more embodiments, some movements can occur in different order
And/or with from it is depicted and described herein or herein it is not shown and describe but it will be appreciated by those skilled in the art that other
Movement concomitantly occurs.
According to an aspect of the present invention, a kind of temperature control equipment of battery pack is provided, the battery pack is equipped with multiple
Temperature sensor includes processor and is coupled to the processor for obtaining multiple temperature sampling values, the temperature control equipment
Memory, be stored with computer instruction on the memory, the processor is implemented such as when executing the computer instruction
The step of any of the above-described method.
According to an aspect of the present invention, a kind of computer-readable medium is provided, computer-readable instruction is stored thereon with,
The computer-readable instruction implements the step of any of the above-described method when executed by the processor.
Offer is to make any person skilled in the art all and can make or use this public affairs to the previous description of the disclosure
It opens.The various modifications of the disclosure all will be apparent for a person skilled in the art, and as defined herein general
Suitable principle can be applied to other variants without departing from the spirit or scope of the disclosure.The disclosure is not intended to be limited as a result,
Due to example described herein and design, but should be awarded and principle disclosed herein and novel features phase one
The widest scope of cause.
Claims (18)
1. a kind of temprature control method of battery pack, the battery pack is equipped with multiple temperature sensors and adopts for obtaining multiple temperature
Sample value, the temprature control method include:
The current temperature value and maximum temperature difference value of the battery pack are obtained based on the multiple temperature sampling value；
Heat management mode and heat management parameter are determined based on the current temperature value and the maximum temperature difference value；And
The heat management mode is executed with the determining heat management state modulator heat management system.
2. temprature control method as described in claim 1, which is characterized in that based on the current temperature value and the maximum temperature
Difference determines heat management mode and heat management parameter includes:
Determine temperature range locating for the current temperature value；
Determine the heat management mode for heating, cooling or natural heat-exchange based on the temperature range；
If the heat management mode is to be heated or cooled, it is corresponding to judge whether the maximum temperature difference value exceeds the temperature range
Allow temperature difference；And
Allow temperature difference if the maximum temperature difference value is corresponding without departing from the temperature range, the heat management parameter include with
The corresponding first water inlet target temperature of the temperature range, if the maximum temperature difference is allowed beyond the temperature range is corresponding
Temperature difference, then the heat management parameter includes the second water inlet target temperature corresponding with the temperature range,
Wherein when heat management mode is heating mode, the second water inlet target temperature is lower than the first water inlet target
Temperature, when heat management mode is cooling, the second water inlet target temperature is higher than the first water inlet target temperature.
3. temprature control method as claimed in claim 2, which is characterized in that the first water inlet target temperature and described the
Difference between two water inlet target temperatures allows temperature difference described in depending on.
4. temprature control method as claimed in claim 3, which is characterized in that the first water inlet target temperature and described the
Difference between two water inlet target temperatures allows temperature difference to subtract temperature sensor error margin described in being equal to.
5. temprature control method as claimed in claim 4, which is characterized in that the temperature sensor error margin is 2 °.
6. temprature control method as claimed in claim 2, which is characterized in that when the current temperature value is between -15 ° to -10 °
Or at 45 ° to 50 °, it is described allow the temperature difference be 10 °, it is described when the current temperature value is between -10 ° to 5 ° or 35 ° to 45 °
Allowing the temperature difference is 8 °.
7. temprature control method as claimed in claim 2, which is characterized in that if the heat management mode is to be heated or cooled,
Corresponding the first higher water inlet target temperature of higher temperature range.
8. temprature control method as claimed in claim 2, which is characterized in that if the heat management mode is to be heated or cooled,
The heat management parameter includes 100% PWM pump power,
If the heat management mode is natural heat-exchange, the heat management parameter includes 50% PWM pump power.
9. temprature control method as claimed in claim 2, which is characterized in that if the heat management mode is to be heated or cooled,
Then the heat management parameter includes BMS power request limit value corresponding with the temperature range.
10. temprature control method as claimed in claim 9, which is characterized in that higher if the heat management mode is heating
The corresponding BMS power request limit value of temperature range be less than or equal to the corresponding BMS power request limit value of lower temperature range,
If the heat management mode is cooling, the corresponding BMS power request limit value of higher temperature range is more than or equal to lower
The corresponding BMS power request limit value of temperature range.
11. temprature control method as claimed in claim 9, which is characterized in that further include:
If the maximum temperature difference exceeds, the temperature range is corresponding to allow temperature difference, at predetermined time intervals drops BMS power
Low half, until the maximum temperature difference is corresponding without departing from the temperature range to allow temperature difference.
12. temprature control method as claimed in claim 11, which is characterized in that the predetermined time is 30 seconds.
13. temprature control method as claimed in claim 2, which is characterized in that further include:
Rate of charge limit value is determined based on temperature range locating for the current temperature value；
If the heat management mode is heating mode, the corresponding rate of charge limit value of higher temperature range is more than or equal to lower
The corresponding rate of charge limit value of temperature range,
If the heat management mode is refrigerating mode, the corresponding rate of charge limit value of higher temperature range is less than or equal to lower
The corresponding rate of charge limit value of temperature range.
14. temprature control method as claimed in claim 2, which is characterized in that further include:
Judge whether the current temperature value is greater than high temperature threshold value or is lower than low temperature threshold,
If the current temperature value is greater than the high temperature threshold value, directly determining heat management mode is heating mode and heat management ginseng
Number is the BMS power request limit value of quota, the highest heating PWM pump power of water inlet target temperature and quota；
If the current temperature value is lower than the low temperature threshold, directly determining heat management mode is refrigerating mode and heat management ginseng
Number is the PWM pump power of the BMS power request limit value of quota, minimum cooling water inlet target temperature and quota.
15. temprature control method as described in claim 1, which is characterized in that when mean value≤0 of the multiple temperature sampling value
DEG C when, the current temperature value takes minimum temperature sampled value, described to work as when mean value >=35 DEG C of the multiple temperature sampling value
Preceding temperature value takes maximum temperature sampled value, and otherwise the current temperature value takes the maximum value and minimum of the multiple temperature sampling value
The average value of value.
16. temprature control method as described in claim 1, which is characterized in that described to be obtained based on the multiple temperature sampling value
The battery pack current temperature value and maximum temperature difference value include:
Based on the Current Temperatures for obtaining the battery pack in the multiple temperature sampling value with data of the mean bias within 10 °
Value and maximum temperature difference value.
17. a kind of temperature control equipment of battery pack, the battery pack is equipped with multiple temperature sensors for obtaining multiple temperature
Sampled value, the temperature control equipment include processor and the memory for being coupled to the processor, are stored on the memory
There is computer instruction, the processor is implemented as described in any one of claim 1-16 when executing the computer instruction
The step of method.
18. a kind of computer-readable medium is stored thereon with computer-readable instruction, the computer-readable instruction is by handling
The step of implementing method described in any one of claim 1-16 when device executes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810800726.1A CN108987848A (en) | 2018-07-20 | 2018-07-20 | A kind of temprature control method of battery pack |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109883560A (en) * | 2018-12-29 | 2019-06-14 | 北京新能源汽车技术创新中心有限公司 | A kind of temperature detection and control method of battery system |
| CN110600831A (en) * | 2019-09-20 | 2019-12-20 | 爱驰汽车有限公司 | Temperature control method and system for battery pack, electronic device and storage medium |
| CN111755777A (en) * | 2020-06-24 | 2020-10-09 | 蜂巢能源科技有限公司 | Immersed cooling module and low-temperature heating control method and equipment thereof |
| CN112151904A (en) * | 2019-06-27 | 2020-12-29 | 北京新能源汽车股份有限公司 | Control method and controller for battery thermal management, battery thermal management system and vehicle |
| CN112874378A (en) * | 2021-01-27 | 2021-06-01 | 一汽解放汽车有限公司 | Method, device and equipment for processing battery sampling temperature and vehicle |
| CN112895976A (en) * | 2021-02-01 | 2021-06-04 | 重庆峘能电动车科技有限公司 | Battery cell early warning protection method and system |
| CN113193269A (en) * | 2021-04-23 | 2021-07-30 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Battery thermal management method and device |
| CN113193267A (en) * | 2021-06-08 | 2021-07-30 | 奇瑞商用车（安徽）有限公司 | Battery pack liquid cooling system and water temperature control method thereof |
| CN113212249A (en) * | 2021-04-29 | 2021-08-06 | 安徽江淮汽车集团股份有限公司 | Battery thermal management system and method |
| CN114520387A (en) * | 2020-11-20 | 2022-05-20 | 航天科工惯性技术有限公司 | Battery partition heating method, system, equipment and storage medium |
| WO2023028789A1 (en) * | 2021-08-30 | 2023-03-09 | 宁德时代新能源科技股份有限公司 | Temperature determination method, current threshold determination method, and battery management system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883560A (en) * | 2018-12-29 | 2019-06-14 | 北京新能源汽车技术创新中心有限公司 | A kind of temperature detection and control method of battery system |
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| CN112151904A (en) * | 2019-06-27 | 2020-12-29 | 北京新能源汽车股份有限公司 | Control method and controller for battery thermal management, battery thermal management system and vehicle |
| CN110600831A (en) * | 2019-09-20 | 2019-12-20 | 爱驰汽车有限公司 | Temperature control method and system for battery pack, electronic device and storage medium |
| CN111755777A (en) * | 2020-06-24 | 2020-10-09 | 蜂巢能源科技有限公司 | Immersed cooling module and low-temperature heating control method and equipment thereof |
| CN114520387B (en) * | 2020-11-20 | 2024-03-26 | 航天科工惯性技术有限公司 | Method, system, device and storage medium for heating battery partition |
| CN114520387A (en) * | 2020-11-20 | 2022-05-20 | 航天科工惯性技术有限公司 | Battery partition heating method, system, equipment and storage medium |
| CN112874378A (en) * | 2021-01-27 | 2021-06-01 | 一汽解放汽车有限公司 | Method, device and equipment for processing battery sampling temperature and vehicle |
| CN112874378B (en) * | 2021-01-27 | 2022-12-09 | 一汽解放汽车有限公司 | Method, device and equipment for processing battery sampling temperature and vehicle |
| CN112895976B (en) * | 2021-02-01 | 2022-06-24 | 重庆峘能电动车科技有限公司 | Battery cell early warning protection method and system |
| CN112895976A (en) * | 2021-02-01 | 2021-06-04 | 重庆峘能电动车科技有限公司 | Battery cell early warning protection method and system |
| CN113193269A (en) * | 2021-04-23 | 2021-07-30 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Battery thermal management method and device |
| CN113212249A (en) * | 2021-04-29 | 2021-08-06 | 安徽江淮汽车集团股份有限公司 | Battery thermal management system and method |
| CN113193267A (en) * | 2021-06-08 | 2021-07-30 | 奇瑞商用车（安徽）有限公司 | Battery pack liquid cooling system and water temperature control method thereof |
| WO2023028789A1 (en) * | 2021-08-30 | 2023-03-09 | 宁德时代新能源科技股份有限公司 | Temperature determination method, current threshold determination method, and battery management system |
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