CN105932361B - Power battery pack compound thermal manages system and temperature consistency Active Control Method - Google Patents
Power battery pack compound thermal manages system and temperature consistency Active Control Method Download PDFInfo
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- CN105932361B CN105932361B CN201610541499.6A CN201610541499A CN105932361B CN 105932361 B CN105932361 B CN 105932361B CN 201610541499 A CN201610541499 A CN 201610541499A CN 105932361 B CN105932361 B CN 105932361B
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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
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
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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
- H01M10/65—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
- H01M10/6561—Gases
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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
- H01M10/65—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
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
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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
- H01M10/65—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
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- 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)
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- Secondary Cells (AREA)
Abstract
The present invention relates to a kind of power battery pack compound thermals to manage system, including power battery pack, signal inspection controller, PCM Phase coolings device, battery air-cooled radiator, battery liquid cooling heat radiator, heat pump air conditioner, circulating pump, three solenoid electric valves, four groups of temperature sensors being arranged in power battery pack and the temperature sensor being arranged on around power battery pack, which possesses the joint thermal management capabilities of PCM Phase coolings, air-cooled radiator cooling and heat pump air conditioner supplement heat rejecter.Further relate to a kind of temperature consistency Active Control Method, during power battery pack heat management, regulate and control the operation and closing of each heat management branch by temperature and time step size control method in real-time judgment battery pack, realize the step descending cooling of power battery pack entrance cooling fluid temperature, severe temperature fluctuations caused by avoiding the big temperature difference heat exchange between low-temperature inlet coolant and initial high-temperature battery pack, temperature consistency in heat management process battery pack is promoted, ensures battery pack efficiency and security.
Description
Technical field
The invention belongs to power battery field of heat management, and in particular to a kind of power battery thermal management system and active control
Method, more particularly to a kind of power battery pack compound thermal management system and temperature consistency Active Control Method, suitable for electronic
Automobile.
Background technology
Power battery is the critical component of electric vehicle, and performance is directly influenced in the performance and continuation of the journey of electric vehicle
Journey.Automobile running working condition is complicated and changeable, and hot environment, heavy load, moment accelerate and can be caused when climbing as radiated not in time
Battery temperature is excessively high, extreme influence battery capacity, service life and security.Therefore, power battery is carried out in time, effectively
Heat management control, which just seems, to be even more important.
Liquid medium possesses stronger exchange capability of heat than air dielectric, is more conducive to and realizes the two-way thermal control of changes in temperature and structure
Vehicle integrated heat pipe is managed.For large-capacity high-power power battery pack, liquid thermal management technology have become important research with
Application direction.Meanwhile power battery electrochemical reaction and internal resistance to temperature change and its sensitivity, in battery cooling procedure,
When battery initial temperature and the larger cooling liquid stream temperature difference, the fluctuation of power battery pack high temperature causes each single battery temperature difference
Different rapid expansion or even there is cold shock and micro-damage, deteriorate rapidly so as to cause the internal resistance of cell and voltage uniformity, increase dynamic
The in-fighting of power battery pack and thermal runaway probability, influence battery life, delivery efficiency and security.
Therefore, further to realize liquid heat exchange power battery pack heat management process temperature guarantee, need to propose highly efficient
Power battery thermal management system, and propose corresponding battery pack heat management Active Control Method, and then promote power battery pack
Thermally controlled process temperature consistency and efficiency.
The content of the invention
The purpose of the present invention is that in view of the above shortcomings of the prior art, provides a kind of power battery pack compound thermal management
System.The present invention also aims to provide a kind of temperature consistency active control side of power battery pack compound thermal management system
Method.
It is as follows in conjunction with illustrating the purpose of the present invention is what is be achieved through the following technical solutions：
A kind of power battery pack compound thermal manages system, including power battery pack 1, signal inspection controller 2, PCM phase transformations
Cooler 3, battery air-cooled radiator 4, battery liquid cooling heat radiator 6, heat pump air conditioner 7, circulating pump 8, the first solenoid electric valve 9,
Two solenoid electric valves 10, the 3rd solenoid electric valve 11, first the 12, second temperature of temperature sensor being arranged in power battery pack 1
Spend sensor 13,14 and the 4th temperature sensor 15 of three-temperature sensor and the be arranged on around power battery pack 1 the 5th
Temperature sensor 16；
The signal inspection controller 2 passes through the first temperature sensor 12, second temperature sensor 13, the 3rd temperature sensing
Device 14, the 4th temperature sensor 15 and the 5th temperature sensor 16 receive temperature signal and then control the first solenoid electric valve 9, the
Two solenoid electric valves 10, the 3rd solenoid electric valve 11, the break-make of circulating pump 8 and heat pump air conditioner 7；First solenoid electric valve 9, second
Control loop liquid stream enters PCM Phase coolings device 3, battery wind-cooling heat dissipating to 10 and the 3rd solenoid electric valve 11 of solenoid electric valve respectively
The open and close of device 4 and battery liquid cooling heat radiator 6, PCM Phase coolings device 3, battery air-cooled radiator 4 and battery liquid-cooling heat radiation
Device 6 is respectively used to the cooling in 1 first, second, and third stage of high temperature power battery pack；
The battery liquid cooling heat radiator 6 is liquid-liquid heat exchanger, and interior side runner is connected with heat pump air conditioner 7, opposite side
Runner is connected with power battery pack 1, and heat pump air conditioner 7 provides refrigerant and enters 6 cooling cycle liquid stream of battery liquid cooling heat radiator, cycles
Pump the flowing of 8 control loop liquid.
The paraffin class phase-change material that filling melting point is 30-40 DEG C in the PCM Phase coolings device 3.
Filling industrial paraffin in the PCM Phase coolings device 3.
Further include the radiator fan 5 for introducing ambient air into battery air-cooled radiator 4.
Further include the first four-way valve 17 and the second four-way valve 18.
A kind of temperature consistency Active Control Method of power battery pack compound thermal management system, comprises the following steps：
A, to be arranged in power battery pack 1 the first temperature sensor 12, second temperature sensor 13, the 3rd temperature pass
Sensor 14, the 4th temperature sensor 15 and 16 real-time sampling of the 5th temperature sensor being arranged on around power battery pack 1 are simultaneously anti-
Signal inspection controller 2 is fed back to be differentiated；
B, by the first temperature sensor 12, second temperature sensor 13,14 and the 4th temperature sensing of three-temperature sensor
Device 15 judges the mean temperature of power battery pack 1, during mean temperature≤50 DEG C, returns to previous step；
C, environment temperature is judged by the 5th temperature sensor 16, during 30 degree of environment temperature ＞, passes through 2 ON cycle of controller
8 and first solenoid electric valve 9 of pump makes circulating fluid realize heat exchange temperature drop into PCM Phase coolings device 3 through the first four-way valve 17
Afterwards, then power battery pack 1 is cooled down；During environment temperature≤30 degree, step F is performed；
D, the △ T seconds mean temperatures that power battery pack 1 is judged after time step when mean temperature is less than 40 degree, close the
One solenoid electric valve 9 and circulating pump 8；When mean temperature is higher than 40 degree, the first solenoid electric valve 9 is closed, and opens the second electromagnetism
Control valve 10；
E, the △ T seconds mean temperatures for judging power battery pack 1 after time step again when mean temperature is less than 40 degree, are closed
Close the second solenoid electric valve 10 and circulating pump 8；When mean temperature remains above 40 degree, the second solenoid electric valve 10 is closed, and is opened
3rd solenoid electric valve 11 and heat pump air conditioner 7 until when mean temperature is less than 40 degree, close the 3rd solenoid electric valve 11, Xun Huan
Pump 8 and heat pump air conditioner 7；
F, during environment temperature≤30 degree, by 2 open the circulation pump 8 of controller and the first solenoid electric valve 9, circulating fluid is made
After the first four-way valve 17 realizes heat exchange temperature drop into PCM Phase coolings device 3, then cool down power battery pack 1；
G, the △ T seconds mean temperatures that power battery pack 1 is judged after time step when mean temperature is less than 40 degree, close the
One solenoid electric valve 9 and circulating pump 8；When mean temperature is higher than 40 degree, the first solenoid electric valve 9 is closed, and opens the second electromagnetism
Control valve 10 until when mean temperature is less than 40 degree, closes the second solenoid electric valve 10 and circulating pump 8.
Step D, in E and G, the mean temperature of the power battery pack 1 is sensed by the first temperature sensor 12, second temperature
Device 13, three-temperature sensor 14 and 15 real-time sampling of the 4th temperature sensor are drawn.
Description of the drawings
Fig. 1 manages system schematic for power battery pack compound thermal of the present invention；
Fig. 2 is power battery pack heat management control method of the present invention and flow chart；
Fig. 3 whether there is maximum temperature difference comparison diagram in step thermal-control battery bag for heat management process of the present invention.
In figure, 1. power battery pack, 2. signal inspection controller 3.PCM Phase coolings device, 4. battery wind-cooling heat dissipating
8. circulating pump of device 5. radiator fan, 6. battery liquid cooling heat radiator, 7. heat pump air conditioner, 9. first solenoid electric valve
10. 13. second temperature sensor of the 3rd 12. first temperature sensor of solenoid electric valve of the second solenoid electric valve 11.
14. 17. first four-way valve 18. of the 5th temperature sensor of the 4th temperature sensor 16. of three-temperature sensor 15.
Two four-way valves.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of power battery pack compound thermal management system, controls including power battery pack 1, signal inspection
Device 2, PCM Phase coolings device 3, battery air-cooled radiator 4, radiator fan 5, battery liquid cooling heat radiator 6, heat pump air conditioner 7, Xun Huan
Pump the 8, first solenoid electric valve 9, the second solenoid electric valve 10, the 3rd solenoid electric valve 11, the first four-way valve 17, the second four-way valve
18th, the first temperature sensor 12, second temperature sensor 13,14 and of three-temperature sensor being arranged in power battery pack 1
4th temperature sensor 15 and the 5th temperature sensor 16 being arranged on around power battery pack 1；First temperature sensing
Device 12, second temperature sensor 13,14 and the 4th temperature sensor 15 of three-temperature sensor are used to measure in power battery pack 1
Different position battery temperature, the 5th temperature sensor 16 are used for measuring environment temperature.
The signal inspection controller 2 passes through the first temperature sensor 12, second temperature sensor 13, the 3rd temperature sensing
Device 14, the 4th temperature sensor 15 and the 5th temperature sensor 16 receive temperature signal and then control the first solenoid electric valve 9, the
Two solenoid electric valves 10, the 3rd solenoid electric valve 11, the break-make of circulating pump 8 and heat pump air conditioner 7.
The paraffin class phase-change material that filling melting point is 30-40 DEG C in the PCM Phase coolings device 3, for high temperature power electric
1 first stage of pond group cools down, and battery air-cooled radiator 4 cools down for 1 second stage of high temperature power battery pack, radiator fan 5
It introduces ambient air into battery air-cooled radiator 4 and realizes wind-cooling heat dissipating, battery liquid cooling heat radiator 6 is used for high temperature power battery pack 1
Phase III cools down.
The battery liquid cooling heat radiator 6 is liquid-liquid heat exchanger, and interior side runner is connected with heat pump air conditioner 7, inside runner
Heat transferring medium is refrigerant；Another side runner is connected with power battery pack 1, and runner internal heat medium is glycol-cooled liquid,
So as to fulfill the glycol-cooled liquid entered inside electric power battery pack 1 and low-temperature refrigerant heat exchange.The heat pump air conditioner 7 carries
Enter 6 cooling cycle liquid stream of battery liquid cooling heat radiator for low-temperature refrigerant, circulating pump 8 controls the stream of circulation fluid in heat management system
It is dynamic.
First solenoid electric valve, the 9 control loop liquid stream enters the open and close of PCM Phase coolings device 3, the second electricity
10 control loop liquid stream of magnetic control valve enters the open and close of battery air-cooled radiator 4, and the control of the 3rd solenoid electric valve 11 follows
Ring liquid stream enters the open and close of battery liquid cooling heat radiator 6.
As depicted in figs. 1 and 2, a kind of temperature consistency Active Control Method of power battery pack compound thermal management system,
Comprise the following steps：
A, to the first temperature sensor 12, second temperature sensor 13, the three-temperature sensor in power battery pack 1
14th, the 4th temperature sensor 15 and 16 real-time sampling of the 5th temperature sensor and feed back to signal inspection controller 2 and differentiated；
B, when the first temperature sensor 12, second temperature sensor 13,14 and the 4th temperature sensing of three-temperature sensor
During 15 mean temperature≤50 DEG C of device, previous step is returned to, the first temperature sensor 12, second temperature sensor 13, the 3rd temperature pass
Sensor 14, the 4th temperature sensor 15 and the 5th temperature sensor 16 continue to sample；
C, when the first temperature sensor 12, second temperature sensor 13,14 and the 4th temperature sensing of three-temperature sensor
Device 15 measures 50 degree of the mean temperature ＞ of power battery pack 1, continues to differentiate environment temperature, if 16 environment temperature of the 5th temperature sensor
When spending 30 degree of ＞ in hot environment, by 2 open the circulation pump 8 of controller, while the first solenoid electric valve 9 is opened, make cycling
Liquid stream is after the first four-way valve 17 realizes heat exchange temperature drop into PCM Phase coolings device 3, then cools down power battery pack 1；Environment temperature
At≤30 degree, step F is performed；
D, after △ T seconds time steps, by the first temperature sensor 12, second temperature sensor 13, three-temperature sensor
14 and the 4th the real-time sampling temperature of temperature sensor 15 judge 1 mean temperature of power battery pack, if mean temperature is less than 40 degree,
Then close the first solenoid electric valve 9 and circulating pump 8；If mean temperature is higher than 40 degree, then the first solenoid electric valve 9 is closed, and is opened
Open second solenoid valve 10；
E, after △ T seconds time steps, by the first temperature sensor 12, second temperature sensor 13, three-temperature sensor
14 and the 4th the real-time sampling temperature of temperature sensor 15 judge 1 mean temperature of power battery pack again, as mean temperature is less than
At 40 degree, second solenoid valve 10 and circulating pump 8 are closed；When remaining above 40 degree such as mean temperature, second solenoid valve 10 is closed, and is opened
The 3rd solenoid electric valve 11 and heat pump air conditioner 7 are opened, until the first temperature sensor 12, second temperature sensor 13, the 3rd temperature
When the mean temperature that 14 and the 4th temperature sensor 15 of sensor measures power battery pack 1 is less than 40 degree, the 3rd solenoid valve is closed
11st, circulating pump 8 and heat pump air conditioner 7；
F, in step C, if the 5th temperature sensor 16 measures environment temperature≤30 degree and is in normal temperature environment, control is passed through
2 open the circulation pump 8 of device, while the first solenoid electric valve 9 is opened, circulating fluid is made to turn cold through the first four-way valve 17 into PCM phases
But after device 3 realizes heat exchange temperature drop, then power battery pack 1 is cooled down；
G, by the first temperature sensor 12, second temperature sensor 13,14 and the 4th temperature sensing of three-temperature sensor
The real-time sampling temperature of device 15 judges 1 mean temperature of power battery pack after T seconds time steps of △, as mean temperature is less than 40 degree
When, close the first solenoid electric valve 9 and circulating pump 8；When being higher than 40 degree such as mean temperature, the first solenoid electric valve 9 is closed, and is opened
The second solenoid electric valve 10 is opened, until when 1 mean temperature of power battery pack is less than 40 degree, the second solenoid electric valve 10 is closed and follows
Ring pump 6.
As shown in figure 3, by taking a certain operating mode simulation result as an example, comparative analysis high temperature power battery pack 1 is straight with 20 degree of low temperature
40,30 and 20 degree of 1 entrances of power battery pack for connecing methods for cooling and being realized in the active temperature control method cool down fluid temperature
Step descending form, which can be seen that the heat management Active Control Method, can realize temperature during 1 heat management of power battery pack
Each single battery temperature difference is fast in the active control of fluctuation, inhibition rapid cooling and the lower power battery pack 1 of big temperature difference heat exchange
Speed deteriorates, and temperature consistency in power battery pack 1 is further promoted, so as to improve battery efficiency and security.
The present invention provides a kind of power battery pack compound thermal management system, possesses PCM Phase coolings, air-cooled radiator cooling
With the joint thermal management capabilities of heat pump air conditioner supplement heat rejecter.Meanwhile propose corresponding battery using the difference of three's exchange capability of heat
Bag heat management Active Control Method promotes battery pack thermally controlled process temperature consistency and efficiency.In power battery pack heat management mistake
Cheng Zhong regulates and controls the operation and closing of each heat management branch by temperature and time step size control method in real-time judgment battery pack,
It realizes the step descending cooling of power battery pack entrance cooling fluid temperature, avoids low-temperature inlet coolant and initial high-temperature battery
Severe temperature fluctuations caused by the big temperature difference heat exchange of parlor, promote temperature consistency in heat management process battery pack, ensure battery
Group efficiency and security.
Claims (7)
1. a kind of power battery pack compound thermal manages system, it is characterised in that：It is controlled including power battery pack (1), signal inspection
Device (2), PCM Phase coolings device (3), battery air-cooled radiator (4), battery liquid cooling heat radiator (6), heat pump air conditioner (7), circulating pump
(8), the first solenoid electric valve (9), the second solenoid electric valve (10), the 3rd solenoid electric valve (11), be arranged on power battery pack
(1) the first temperature sensor (12), second temperature sensor (13), three-temperature sensor (14) and the 4th temperature sensing in
Device (15) and the 5th temperature sensor (16) being arranged on around power battery pack (1)；
The signal inspection controller (2) is passed by the first temperature sensor (12), second temperature sensor (13), the 3rd temperature
Sensor (14), the 4th temperature sensor (15) and the 5th temperature sensor (16) receive temperature signal and then control the first electromagnetism control
Valve (9) processed, the second solenoid electric valve (10), the 3rd solenoid electric valve (11), the break-make of circulating pump (8) and heat pump air conditioner (7)；The
Control loop liquid stream enters PCM respectively for one solenoid electric valve (9), the second solenoid electric valve (10) and the 3rd solenoid electric valve (11)
The open and close of Phase cooling device (3), battery air-cooled radiator (4) and battery liquid cooling heat radiator (6)；
The battery liquid cooling heat radiator (6) is liquid-liquid heat exchanger, and interior side runner is connected with heat pump air conditioner (7), opposite side
Runner is connected with power battery pack (1), and heat pump air conditioner (7) provides refrigerant and enters battery liquid cooling heat radiator (6) cooling circulation liquid
Stream, the flowing of circulating pump (8) control loop liquid.
2. a kind of power battery pack compound thermal management system according to claim 1, it is characterised in that：The PCM phase transformations
The paraffin class phase-change material that filling melting point is 30-40 DEG C in cooler (3).
3. a kind of power battery pack compound thermal management system according to claim 2, it is characterised in that：The PCM phase transformations
Filling industrial paraffin in cooler (3).
4. a kind of power battery pack compound thermal management system according to claim 1, it is characterised in that：It further includes environment
Air introduces the radiator fan (5) of battery air-cooled radiator (4).
5. a kind of power battery pack compound thermal management system according to claim 1, it is characterised in that：Further include the one or four
Port valve (17) and the second four-way valve (18).
6. a kind of temperature consistency Active Control Method of power battery pack compound thermal management system as described in claim 1,
It is characterised in that it includes following steps：
A, to be arranged in power battery pack (1) the first temperature sensor (12), second temperature sensor (13), the 3rd temperature
Sensor (14), the 4th temperature sensor (15) and the 5th temperature sensor (16) reality being arranged on around power battery pack (1)
When sample and feed back to signal inspection controller (2) and differentiated；
B, passed by the first temperature sensor (12), second temperature sensor (13), three-temperature sensor (14) and the 4th temperature
Sensor (15) judges the mean temperature of power battery pack (1), during mean temperature≤50 DEG C, returns to previous step；
C, environment temperature is judged by the 5th temperature sensor (16), during 30 degree of environment temperature ＞, passes through controller (2) ON cycle
(8) and the first solenoid electric valve (9) are pumped, circulating fluid is made to be changed through the first four-way valve (17) into PCM Phase coolings device (3) realization
After hot temperature drop, then cool down power battery pack (1)；During environment temperature≤30 degree, step F is performed；
D, the △ T seconds mean temperatures that power battery pack (1) is judged after time step when mean temperature is less than 40 degree, close first
Solenoid electric valve (9) and circulating pump (8)；When mean temperature is higher than 40 degree, the first solenoid electric valve (9) is closed, and opens second
Solenoid electric valve (10)；
E, the △ T seconds mean temperatures for judging power battery pack (1) after time step again when mean temperature is less than 40 degree, are closed
Second solenoid electric valve (10) and circulating pump (8)；When mean temperature remains above 40 degree, the second solenoid electric valve (10) is closed, and
The 3rd solenoid electric valve (11) and heat pump air conditioner (7) are opened, until when mean temperature is less than 40 degree, closes the 3rd solenoid electric valve
(11), circulating pump (8) and heat pump air conditioner (7)；
F, during environment temperature≤30 degree, by controller (2) open the circulation pump (8) and the first solenoid electric valve (9), circulation fluid is made
It flows through after the first four-way valve (17) realizes heat exchange temperature drop into PCM Phase coolings device (3), then cools down power battery pack (1)；
G, the △ T seconds mean temperatures that power battery pack (1) is judged after time step when mean temperature is less than 40 degree, close first
Solenoid electric valve (9) and circulating pump (8)；When mean temperature is higher than 40 degree, the first solenoid electric valve (9) is closed, and opens second
Solenoid electric valve (10) until when mean temperature is less than 40 degree, closes the second solenoid electric valve (10) and circulating pump (8).
7. a kind of temperature consistency active control side of power battery pack compound thermal management system according to claim 6
Method, it is characterised in that：Step D, in E and G, the mean temperature of the power battery pack (1) is by the first temperature sensor (12),
Two temperature sensors (13), three-temperature sensor (14) and the 4th temperature sensor (15) real-time sampling are drawn.
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| CN201610541499.6A CN105932361B (en) | 2016-07-11 | 2016-07-11 | Power battery pack compound thermal manages system and temperature consistency Active Control Method |
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| CN201610541499.6A CN105932361B (en) | 2016-07-11 | 2016-07-11 | Power battery pack compound thermal manages system and temperature consistency Active Control Method |
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| CN107799850A (en) * | 2017-10-31 | 2018-03-13 | 山东朗进科技股份有限公司 | A kind of battery air-conditioning system |
| CN108038261B (en) * | 2017-11-10 | 2020-04-28 | 华南理工大学 | Method for quickly optimizing flow channel spacing of power battery air cooling system |
| CN109361034A (en) * | 2018-09-13 | 2019-02-19 | 吉林大学 | The equal balance system of battery pack temperature and Active Control Method |
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| CN109546259B (en) * | 2018-11-16 | 2020-10-09 | 安徽江淮汽车集团股份有限公司 | Constant temperature control system and control method for battery pack of electric vehicle |
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