CN107394308A - The system and method for vehicle battery charging cooling - Google Patents
The system and method for vehicle battery charging cooling Download PDFInfo
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- CN107394308A CN107394308A CN201710585123.XA CN201710585123A CN107394308A CN 107394308 A CN107394308 A CN 107394308A CN 201710585123 A CN201710585123 A CN 201710585123A CN 107394308 A CN107394308 A CN 107394308A
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- 238000001816 cooling Methods 0.000 title claims abstract description 342
- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000008859 change Effects 0.000 claims abstract description 106
- 239000002826 coolant Substances 0.000 claims abstract description 77
- 230000008569 process Effects 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 9
- 238000004378 air conditioning Methods 0.000 claims description 8
- 230000007613 environmental effect Effects 0.000 claims description 7
- 238000007726 management method Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000004590 computer program Methods 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 8
- 239000000498 cooling water Substances 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
-
- 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
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- 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
-
- 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
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- 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
- H01M10/63—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
- H01M10/635—Control systems based on ambient temperature
-
- 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
-
- 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
-
- 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
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- 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)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention relates to the system and method for vehicle battery charging cooling, the system includes：Temperature detecting unit, battery temperature rate of change is drawn for obtaining environment temperature and battery temperature in battery charging process, and according to the battery temperature；Control unit, for controlling the conducting/block of first cooling circuit, the second cooling circuit according to current environment temperature and battery temperature rate of change；In the on-state, the flowing based on coolant cools down battery to first cooling circuit；Second cooling circuit in the on-state, is cooled by the air conditioner coolant of vehicle to the coolant in first cooling circuit；Wherein, the cooling condition is the first temperature threshold that environment temperature is more than or equal to setting, and battery temperature rate of change is more than or equal to setting rate of change.The present invention program can realize different cooling requirements during vehicle battery charging.
Description
Technical field
The present invention relates to technical field of vehicle, more particularly to the system and method for vehicle battery charging cooling.
Background technology
The key problem that electric automobile faces is that insufficient driving range and charging set configuration deficiency, and quick charge stake can be with
Solves the problems, such as the vehicle battery charging cooling of electric automobile.But under different battery temperatures, the charging energy of electrokinetic cell
Power and charge efficiency differ greatly, and Fast Charge Battery temperature rises very fast in high temperature environments, if can not effectively control
Battery temperature rises, and battery allows charging ability to decline quickly；If battery temperature can not be effectively reduced, on the one hand it is easy to
Cause power battery charging dangerous, still further aspect, battery charge efficiency declines, and the time of quick charge greatly extends, shadow
Ring the efficiency to quick charge.
For the problem, traditional way be the cold wind of compressor of air conditioner is blown into inside battery bag circulated with
Battery is cooled, but when including more Battery packs in battery bag, this method exist cooling effectiveness is relatively low, battery cooling effect not
Uniformly, the problem of temperature difference of more Battery packs is larger.
The content of the invention
Based on this, the embodiments of the invention provide the system and method for vehicle battery charging cooling, enable to battery cold
But effect evenly, while can also improve Vehicular battery cooling efficiency.
The system of vehicle battery charging cooling provided by the invention, including：Temperature detecting unit, control unit VCU, first
Cooling circuit and the second cooling circuit；
The temperature detecting unit, for obtaining environment temperature and battery temperature in battery charging process, and according to institute
State battery temperature and draw battery temperature rate of change；
Described control unit, for judging whether to meet to preset according to current environment temperature and battery temperature rate of change
Cooling condition；If satisfied, the first cooling circuit of control and the conducting of the second cooling circuit；Otherwise, current battery temperature is detected
Whether rate of change reaches setting rate of change, if reaching, control the first cooling circuit conducting；
In the on-state, the flowing based on coolant cools down battery to first cooling circuit；Described second cools back
Road in the on-state, is cooled by the air conditioner coolant of vehicle to the coolant in first cooling circuit；
Wherein, the cooling condition is the first temperature threshold that environment temperature is more than or equal to setting, and battery temperature changes
Rate is more than or equal to setting rate of change.
A kind of method of vehicle battery charging cooling, including：
The environment temperature and battery temperature in battery charging process are obtained, and battery temperature is drawn according to the battery temperature
Rate of change；
Judge whether to meet default cooling condition according to current environment temperature and battery temperature rate of change；If satisfied,
The first cooling circuit and the second cooling circuit is controlled to be both turned on；Otherwise, detect current battery temperature rate of change and whether reach and set
Determine rate of change, if reaching, the conducting of the first cooling circuit of control, the second cooling circuit block；
Wherein, in the case where turning on first cooling circuit, the flowing cooling battery based on coolant；In conducting institute
In the case of stating the second cooling circuit, the coolant in first cooling circuit is dropped by the air conditioner coolant of vehicle
Temperature；
Wherein, the cooling condition is the first temperature threshold that environment temperature is more than or equal to setting, and battery temperature changes
Rate is more than or equal to setting rate of change.
A kind of device of vehicle battery charging cooling, including：
Temperature detecting module, for obtaining environment temperature and battery temperature in battery charging process, and according to the electricity
Pond temperature draws battery temperature rate of change；
Cooling circuit control module, for judging whether to meet in advance according to current environment temperature and battery temperature rate of change
If cooling condition；If satisfied, the first cooling circuit of control and the second cooling circuit are both turned on；Otherwise, current battery is detected
Whether rate of temperature change reaches setting rate of change, if reaching, the conducting of the first cooling circuit of control, the second cooling circuit block；
Wherein, in the case where turning on first cooling circuit, the flowing cooling battery based on coolant；In conducting institute
In the case of stating the second cooling circuit, the coolant in first cooling circuit is dropped by the air conditioner coolant of vehicle
Temperature；
Wherein, the cooling condition is the first temperature threshold that environment temperature is more than or equal to setting, and battery temperature changes
Rate is more than or equal to setting rate of change.
A kind of computer read/write memory medium, it is stored thereon with the computer program that can be performed, the computer journey
When sequence is performed, the step of methods described can be realized.
Above-mentioned technical proposal, can be according to current environment temperature and battery temperature rate of change in battery charging process
Whether comprehensive descision starts battery rapid cooling strategy；If so, the first cooling circuit of control and the second cooling circuit are both turned on；Otherwise,
Detect whether current battery temperature rate of change reaches setting rate of change, if reaching, the conducting of the first cooling circuit of control, second
Cooling circuit is blocked, and battery is cooled down at a slow speed by the conducting of the first cooling circuit.First cooling circuit is in conducting shape
It is the flowing cooling battery based on coolant under state；Second cooling circuit is the air-conditioning by vehicle in the on-state
Refrigerant cools to the coolant in first cooling circuit, therefore enables to battery cooling effect under two kinds of strategies
Evenly, and by rapid cooling strategy the efficiency of Vehicular battery cooling can also be improved, batteries of electric automobile is realized and was charging
Different cooling requirements in journey at varying environment temperature and battery temperature state.
Brief description of the drawings
Fig. 1 is the logical framework schematic diagram for the system that the vehicle battery charging of an embodiment cools down；
Fig. 2 is the structural representation for the system that the vehicle battery charging of an alternative embodiment cools down；
Fig. 3 is the principle flow chart for the system that the vehicle battery charging of an embodiment cools down；
Fig. 4 is the indicative flowchart for the method that the vehicle battery charging of an embodiment cools down；
Fig. 5 is the schematic diagram for the device that the vehicle battery charging of an embodiment cools down.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 is the logical framework schematic diagram for the system that the vehicle battery charging of an embodiment cools down；As shown in figure 1, this reality
Applying the system that vehicle battery charging cools down in example includes：Temperature detecting unit, control unit, the first cooling circuit and second are cold
But loop；When initial, first cooling circuit and the second cooling circuit are the state of blocking.
Temperature detecting unit, for obtaining environment temperature and battery temperature in battery charging process, and according to the electricity
Pond temperature draws battery temperature rate of change.
Control unit, in battery charging process, being judged according to current environment temperature and battery temperature rate of change
Whether default cooling condition is met；If satisfied, the first cooling circuit of control and the conducting of the second cooling circuit；Otherwise, detect
Whether current battery temperature rate of change reaches setting rate of change, if reaching, control the first cooling circuit conducting.Described first
When cooling circuit and the second cooling circuit are both turned on, the shape of only the first cooling circuit conducting is higher than to the efficiency of battery cooling
State.
In the on-state, the flowing based on coolant cools down battery to first cooling circuit.Described second cools back
Road in the on-state, is cooled by the air conditioner coolant of vehicle to the coolant in first cooling circuit.
Wherein, the cooling condition is the first temperature threshold that environment temperature is more than or equal to setting, and battery temperature changes
Rate is more than or equal to setting rate of change.Such as：Environment temperature is more than or equal to 40 DEG C, and battery temperature rate of change reaches warm in 5 seconds
Rise more than 3 DEG C.Under normal circumstances, charge efficiency of the battery of vehicle under different temperature condition is different, such as shown in table 1.
Table 1：
| ＜ -10 DEG C | Do not charge |
| - 10~0 DEG C | It is full of within 10 hours |
| 0~15 DEG C | It is full of within 5 hours |
| 15~25 DEG C | It is full of within 2 hours |
| 25~45 DEG C | It is full of within 1 hour |
| 45~50 DEG C | It is full of within 5 hours |
| 50~60 DEG C | It is full of within 10 hours |
| 60 DEG C of ＞ | Do not charge |
It can be seen that when battery temperature exceedes certain temperature value, its duration increase of charging, charge efficiency reduces, or even can not
Charging.The degree that different batteries are affected by temperature is different, and therefore, the default cooling condition can be according to different battery performances
Cooling condition is set.
The system of the vehicle battery charging cooling of above-described embodiment is not only suitable for the fast charge pattern of battery, is also applied for battery
Normal charge mode, disclosure satisfy that the different radiating requirements of battery under various charging environment, and cooling effect is uniform, favorably
In preventing that the temperature of battery is too high, the charge efficiency of battery is improved.
In an alternative embodiment, the system of described vehicle battery charging cooling also includes：Coolant detection unit, use
In the pressure and flow velocity that detect coolant in the first cooling circuit.Described control unit, it is additionally operable in first cooling circuit
After conducting, coolant in the first cooling circuit is calculated according to current battery temperature, the pressure of current coolant and current meter
Goal pressure and target flow rate；And coolant in first cooling circuit is adjusted according to the goal pressure and target flow rate
Circulating pressure and flow velocity.Thus the duration needed for adjustable batteries cooling, such as the flow velocity of coolant is heightened, battery can be shortened
Duration needed for cooling.
In an alternative embodiment, the system of described vehicle battery charging cooling also includes：Battery management unit, it is used for
Cell voltage is detected, and judges whether battery charging terminates according to cell voltage.Accordingly, described control unit, it is additionally operable to work as
At the end of battery charges, second cooling circuit is controlled to block, or the first cooling circuit of control and the second cooling circuit are cut
It is disconnected.If only the second cooling circuit blocks, it can continue to cool down battery by the first cooling circuit, when no longer needing battery
During cooling, then the first cooling circuit and the second cooling circuit can control to block.
In another alternative embodiment, described control unit can also be used at the end of battery charging, start a timer,
And just the first cooling circuit and the second cooling circuit is controlled to block when the setting clock of the timer expires.I.e. when battery fills
At the end of electricity is firm, battery temperature is still higher than normal temperature, and battery temperature can be enable quickly to revert to normally under the embodiment
State.
In an alternative embodiment, the battery management unit is additionally operable to detect charging current, and according to the charging electricity
Stream judges whether to start fast charge pattern.Such as when charging current is more than the current threshold of setting, then start fast charge pattern, it is no
Then, normal charging mode is started.
Accordingly, described control unit, it may also be used for if the current charge mode of battery is fast charge pattern, according to battery temperature
The conducting of degree rate of change control first cooling circuit and the second cooling circuit/block, if not fast charge pattern, then basis is worked as
Preceding environment temperature and battery temperature rate of change judges whether to meet default cooling condition.Specifically for example：If fast charge pattern,
Control unit detects whether current battery temperature rate of change reaches setting rate of change；If reaching, control first is cold immediately
But loop and the second cooling circuit are both turned on, into the fast refrigerating mode to battery.Because charging current is larger under fast charge pattern,
Battery temperature rise is notable, it is therefore desirable to starts quick cooling strategy, i.e., by the first cooling circuit and the second cooling circuit simultaneously
Battery is cooled, to ensure that battery can be cooled down quickly.It should be understood that under fast charge pattern when battery temperature rate of change not
When reaching setting rate of change, controllable first cooling circuit conducting, the second cooling circuit block, and can also control the first cooling
Loop, the second cooling circuit block.On the other hand, if normal charging mode, then according to current environment temperature and battery
Rate of temperature change judges whether to meet default cooling condition；If satisfied, the first cooling circuit of control and the second cooling circuit
It is both turned on；Otherwise, when detecting that current battery temperature rate of change reaches setting rate of change, the first cooling circuit of control is led
Logical, the second cooling circuit blocks.Under normal charging mode, battery temperature rise is slower, therefore combining environmental temperature judges whether to need
Start quick cooling strategy.Thus the different battery cooling requirements under different charging environment, different charge modes can be realized.
As shown in table 1, when battery temperature is less than certain temperature, charge efficiency is relatively low, or even can not charge.It is based on
This, in an alternative embodiment, the system of the vehicle battery charging cooling also includes：Heater, the heater open
Coolant in first cooling circuit is heated when dynamic.Accordingly, described control unit, it may also be used in battery charging process
In, whether detection current environmental temperature is less than the second temperature threshold value of setting, if being less than, control the first cooling circuit to turn on,
Second cooling circuit blocks, and starts the heater, to be heated to the coolant in first cooling circuit, makes
Obtain battery temperature and maintain default temperature range, thus can overcome the problem of battery charge efficiency is low under low temperature environment.Wherein,
The second temperature threshold value is less than first temperature threshold, such as 0 DEG C.Currently, also it can be arranged to according to the performance of battery
His temperature value.
The system of vehicle battery charging cooling based on the present embodiment, can meet different charge modes (fast charge pattern and
Normal charging mode) under different battery cooling requirement, can also realize the heating to battery at low ambient temperatures, be further ensured that
Battery charges at a suitable temperature, improves charge efficiency.
In an alternative embodiment, the temperature detecting unit includes：First cooling-water temperature sensor (the water temperature sensing in Fig. 2
Device 1), the second cooling-water temperature sensor (cooling-water temperature sensor 2 in Fig. 2) and environment temperature sensor.First cooling-water temperature sensor is used
The first water temperature in detection into the coolant of Battery case, second cooling-water temperature sensor is used to detect to flow out from Battery case
Coolant the second water temperature；The environment temperature sensor is used to detect the environment temperature in battery charging process；The electricity
Pond temperature is drawn according to first water temperature and the second water temperature.
In an alternative embodiment, the structure of first cooling circuit and the second cooling circuit is referred to shown in Fig. 2.Its
In, first cooling circuit is the loop of solid black lines mark, including：Electric water pump, electric T-shaped valve, battery radiator,
Expansion tank and liquid liquid heat exchanger.The delivery port of the entrance connection Battery case of the electric T-shaped valve, the electric T-shaped valve
First outlet connection liquid liquid heat exchanger first entrance, the second outlet connection battery radiator of the electric T-shaped valve
Entrance；The entrance of the outlet connection expansion tank of the battery radiator, the exporting of the expansion tank, the liquid liquid heat exchanger
First outlet is all connected with the water inlet of electric water pump, the water inlet of the delivery port connection Battery case of the electric water pump.Wherein,
The effect of electric water pump is to drive the coolant flow of cooling circuit, and expansion tank is supplement coolant, maintains certain circuit pressure.
If having air to be mixed into the pipeline of the first cooling circuit, the proper flow of coolant is influenced whether, influences cooling effect
Fruit.Based on this, in an alternative embodiment, air removing valve is also included in the first cooling circuit, in time by the first cooling circuit
In air discharge.
Based on above-mentioned first cooling circuit, described control unit specifically can realize by controlling the electric T-shaped valve
The conducting of one cooling circuit and block, by controlling the electric water pump, realize regulation into the stream of the coolant of Battery case
Speed, by controlling the expansion tank, realize the pressure of the coolant in the first cooling circuit of regulation.
Second cooling circuit is the loop of grey filled lines mark, including：Compressor of air conditioner, air-conditioning condenser, evaporation
Device, switch member, the first expansion valve and the second expansion valve.The entrance of the outlet connection air-conditioning condenser of the compressor of air conditioner, it is empty
The outlet of condenser is adjusted to connect the entrance of evaporator by the first expansion valve, the outlet of air-conditioning condenser also passes sequentially through switch
The second entrance of part, the second expansion valve connection liquid liquid heat exchanger, the outlet of evaporator, the second outlet of liquid liquid heat exchanger are equal
Connect the import of compressor of air conditioner.Liquid liquid exchanger is used to realize quick cooling of the air conditioner coolant to coolant, and switch member is used for
To realize the conducting of the second cooling circuit and block, expansion valve is changed come control valve flow by the degree of superheat of evaporator end,
Prevent evaporator area underutilization and engine knock phenomenon.
Based on above-mentioned second cooling circuit, described control unit specifically can realize that second is cold by controlling the switch member
But the conducting in loop and block.Alternatively, the switch member can be magnetic valve or other have similar circuit switching function
Device.
In an alternative embodiment, the heater is heater, and its position is as shown in Fig. 2 i.e. described electric three passes
The first outlet of valve connects the first entrance of liquid liquid heat exchanger by heater, directly acts on and described connects liquid liquid heat exchanger
In coolant, and then cause the first cooling circuit in coolant heating, prevent battery temperature less than setting temperature threshold.
Alternatively, the control unit in the system of the vehicle battery charging cooling of above-described embodiment can be wagon control list
First (VCU, Vehicle control unit), only corresponding control logic need to be set in existing control unit for vehicle, just
In realization.
Further, the system of the vehicle battery charging cooling based on above-described embodiment, it is in battery charging process
Temperature controlled implementation process is as shown in Figure 3, it may include below scheme：
S301, close under key status and access charging pile.Current electric automobile is usually that electricity is carried out in the case where closing key
Pond is charged, therefore whether also detectable is currently to close key status, if, it is allowed to access charging pile.
S302, wake up VCU, battery management system BMS and temperature detecting unit.
Battery management system detects current charging current, when charging current is more than certain current value, starts battery
Fast charge pattern, otherwise, start the normal charging mode of battery.
Temperature detecting unit obtains environment temperature and battery temperature in battery charging process, and according to the battery temperature
Draw battery temperature rate of change；And the environment temperature, battery temperature and battery temperature rate of change are sent to VCU.
S303, VCU judge whether the current charge mode of battery is fast charge pattern, if so, performing journey S304, otherwise, hold
Row flow S305；
S304, VCU judge to detect whether current battery temperature rate of change reaches setting rate of change, if being less than, perform
Flow S306, otherwise, perform S307.
Wherein, setting states rate of change for example：Battery temperature rise is more than 3 DEG C in 5 seconds.
S305, VCU judge whether to meet cooling condition (i.e. rapid cooling according to current environment temperature and battery temperature rate of change
Condition), if satisfied, performing flow S306, otherwise, perform flow S307.
The cooling condition is that environment temperature is more than or equal to the first temperature threshold (such as 40 DEG C) set, and battery temperature
Rate of change is more than or equal to setting rate of change (such as in 5 seconds battery temperature rise more than 3 DEG C).
S306, gateway, compressor of air conditioner and electric water pump are waken up, control the first cooling circuit and the second cooling circuit to lead
It is logical, battery is quickly cooled down with this.
S307, gateway and electric water pump are waken up, control the first cooling circuit conducting, the second cooling circuit blocks, to battery
Carry out slow cool down.
In addition, battery management system also detects cell voltage, and judge whether battery charging terminates according to cell voltage.If
Battery charging terminates, and VCU then controls second cooling circuit to block, or the first cooling circuit of control and the second cooling circuit
Block.
Specifically, can determine to cool down in the first cooling circuit according to current battery temperature, the pressure of coolant and flow velocity
The goal pressure and target flow rate of liquid；And coolant in the first cooling circuit is adjusted according to the goal pressure and target flow rate
Circulating pressure and flow velocity, therefore the duration needed for regulating cell cooling.
The system of vehicle battery charging cooling based on above-described embodiment, during quickly charging battery or commonly fills
In electric process under various environment temperatures, meet the cooling requirements of battery, carried out particularly in the case where environment temperature is higher fast
Speed charging, the system of the vehicle battery charging cooling have good cooling effect, extend the environment temperature of battery charging
Scope, improve battery charge efficiency.
Fig. 4 is the indicative flowchart for the method that the vehicle battery charging of an embodiment cools down.As shown in figure 4, the car
The method of battery charging cooling includes step：
S401, environment temperature and battery temperature in battery charging process are obtained, and electricity is drawn according to the battery temperature
Pond rate of temperature change；
S402, judge whether to meet default cooling condition according to current environment temperature and battery temperature rate of change；If
Meet, control the first cooling circuit and the second cooling circuit to be both turned on；Otherwise, detect whether current battery temperature rate of change reaches
To setting rate of change, if reaching, the conducting of the first cooling circuit of control, the second cooling circuit block.Wherein, the cooling condition
It is more than or equal to the first temperature threshold of setting for environment temperature, and battery temperature rate of change is more than or equal to setting rate of change.
Such as：Environment temperature is more than or equal to 40 DEG C, and battery temperature rate of change reaches in 5 seconds temperature rise more than 3 DEG C.By table 1
Shown, when battery temperature exceedes certain temperature value, its duration increase of charging, charge efficiency reduces, or even can not charge.It is different
The degree that battery is affected by temperature is different, therefore the default cooling condition can set cooling bar according to different battery performances
Part.
Wherein, in the on-state, the flowing based on coolant cools down battery to first cooling circuit；Described second is cold
But loop in the on-state, is cooled by the air conditioner coolant of vehicle to the coolant in first cooling circuit.
It should be understood that the executive agent of above-mentioned steps can be the control list in said system embodiment in the present embodiment
Member.
In an alternative embodiment, judge whether to meet according to current environment temperature and battery temperature rate of change default
Before cooling condition, it may also include：Judge whether the current charge mode of battery is fast charge pattern；If fast charge pattern, then basis
The conducting of battery temperature rate of change control first cooling circuit and the second cooling circuit/block；If not fast charge pattern, then
Judge whether to meet default cooling condition according to current environment temperature and battery temperature rate of change.It is described according to battery temperature
The conducting of rate of change control first cooling circuit and the second cooling circuit/block, including：Detecting battery temperature rate of change is
No to reach setting rate of change, no to reach, the first cooling circuit of control and the second cooling circuit are both turned on, if not up to, control
The conducting of first cooling circuit, the second cooling circuit block, or the first cooling circuit of control, the second cooling circuit block.Tool
Body implementation is above-mentioned to refer to the above-mentioned explanation to Fig. 3 embodiments.
In an alternative embodiment, in addition to step：After the first cooling circuit is turned on, detect in the first cooling circuit
The pressure and flow velocity of coolant；Determined according to current battery temperature, the pressure of coolant and flow velocity cold in the first cooling circuit
But the goal pressure and target flow rate of liquid；And coolant in the first cooling circuit is adjusted according to the goal pressure and target flow rate
Circulating pressure and flow velocity.
In an alternative embodiment, after the environment temperature in obtaining battery charging process and battery temperature, in addition to
Step：Current environmental temperature is detected whether less than the second temperature threshold value set, if being less than, controls the first cooling circuit to lead
Logical, the second cooling circuit blocks, and starts default heater；The heater in the start-up conditions can be cold to first
But the coolant heating in loop.Preferably, the second temperature threshold value is less than first temperature threshold.
The cooling means of above-described embodiment, in battery charging process, become by current environment temperature and battery temperature
Whether rate comprehensive descision starts battery rapid cooling strategy；If so, can be by the first cooling circuit and the second cooling circuit to electricity
Pond is quickly cooled down；Otherwise, battery is cooled down at a slow speed by the conducting of the first cooling circuit.Thus vehicle electrical can be met
Fast cooling requirement in the charging process of pond, it can also meet the slow cool down demand during vehicle battery charging.
Based on the method identical thought with the vehicle battery charging cooling in above-described embodiment, the present invention also provides vehicle
The device of battery charging cooling, the device can be used for the method for performing above-mentioned vehicle battery charging cooling.For convenience of description, car
Putting in the structural representation of embodiment for battery charging cooling, illustrate only the part related to the embodiment of the present invention,
Art personnel are appreciated that the restriction of schematic structure not structure twin installation, can include more more or less than illustrating
Part, either combine some parts or different parts arrangement.
Fig. 5 is the schematic diagram for the device that the vehicle battery charging of one embodiment of the invention cools down；As shown in figure 5,
The device of the vehicle battery charging cooling of the present embodiment includes：
Temperature detecting module 501, for obtaining environment temperature and battery temperature in battery charging process, and according to described
Battery temperature draws battery temperature rate of change；
Cooling circuit control module 502, it is full for being judged whether according to current environment temperature and battery temperature rate of change
The default cooling condition of foot；If satisfied, the first cooling circuit of control and the second cooling circuit are both turned on；Otherwise, detect current
Whether battery temperature rate of change reaches setting rate of change, if reaching, the conducting of the first cooling circuit of control, the second cooling circuit are cut
It is disconnected；
Wherein, in the on-state, the flowing based on coolant cools down battery to first cooling circuit；Described second is cold
But loop in the on-state, is cooled by the air conditioner coolant of vehicle to the coolant in first cooling circuit；
Judge whether to meet default cooling condition according to current environment temperature and battery temperature rate of change；If satisfied,
The first cooling circuit and the second cooling circuit is controlled to be both turned on；Otherwise, detect current battery temperature rate of change and whether reach and set
Determine rate of change, if reaching, the conducting of the first cooling circuit of control, the second cooling circuit block.
In an alternative embodiment, the cooling circuit control module 502, be additionally operable to according to current environment temperature and
Before battery temperature rate of change judges whether to meet default cooling condition, judge whether the current charge mode of battery is fast mold filling
Formula；If fast charge pattern, then according to battery temperature rate of change control the conducting of first cooling circuit and the second cooling circuit/
Block；If not fast charge pattern, then judge whether to meet according to current environment temperature and battery temperature rate of change default cold
But condition.
It is described that the conducting of first cooling circuit and the second cooling circuit/block is controlled according to battery temperature rate of change,
Including：Whether detection battery temperature rate of change reaches setting rate of change, no to reach, and controls the first cooling circuit and the second cooling
Loop is both turned on, if not up to, the conducting of the first cooling circuit of control, the second cooling circuit block, or control first cools back
Road, the second cooling circuit block.
In an alternative embodiment, the cooling circuit control module 502, be additionally operable to turn on the first cooling circuit it
Afterwards, determine that described first cools back according to the pressure of coolant and flow velocity in current battery temperature, current first cooling circuit
The goal pressure and target flow rate of coolant in road；And adjusted according to the goal pressure and target flow rate in the first cooling circuit
The circulating pressure and flow velocity of coolant.
In an alternative embodiment, the cooling circuit control module 502, whether low detection current environmental temperature is additionally operable to
In the second temperature threshold value of setting, if being less than, the conducting of the first cooling circuit, the second cooling circuit is controlled to block, and start pre-
If heater；The heater can heat to the coolant in the first cooling circuit in the start-up conditions.
It should be understood that the device of the vehicle battery charging cooling of above-described embodiment can be applied in said system embodiment
Control unit.
It should be noted that in the embodiment of the device of the vehicle battery charging cooling of above-mentioned example, between each module
Information exchange, the content such as implementation procedure, due to being based on same design, its technology brought with preceding method embodiment of the present invention
Effect is identical with preceding method embodiment of the present invention, and particular content can be found in the narration in the inventive method embodiment, herein not
Repeat again.
In addition, in the embodiment of the device of the vehicle battery charging cooling of above-mentioned example, the logic of each program module is drawn
Divide and be merely illustrative of, can be as needed in practical application, such as configuration requirement or the reality of software for corresponding hardware
Existing convenient consideration, above-mentioned function distribution is completed by different program modules, will the vehicle battery charging cooling dress
The internal structure put is divided into different program modules, to complete all or part of function described above.
It will appreciated by the skilled person that in realizing the method that the vehicle battery charging of above-described embodiment cools down
All or part of flow, it is that by computer program the hardware of correlation can be instructed to complete, described program can be stored in
In one computer read/write memory medium, as independent production marketing or use.Described program upon execution, can perform as above
State all or part of step of the embodiment of each method.In addition, the storage medium it is also settable with a kind of computer equipment,
Also include processor in the computer equipment, during program in storage medium described in the computing device, can realize
State all or part of step of the embodiment of each method.Wherein, described storage medium can be magnetic disc, CD, read-only storage note
Recall body (Read-Only Memory, ROM) or random access memory (Random Access Memory, RAM) etc..
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiments.It is appreciated that wherein used term " first ", " second " etc. are at this
It is used to distinguish object in text, but these objects should not be limited by these terms.
Embodiment described above only expresses the several embodiments of the present invention, it is impossible to is interpreted as to the scope of the claims of the present invention
Limitation.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise,
Various modifications and improvements can be made, these belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention
It should be determined by the appended claims.
Claims (15)
- A kind of 1. system of vehicle battery charging cooling, it is characterised in that including：It is temperature detecting unit, control unit, first cold But loop and the second cooling circuit；The temperature detecting unit, for obtaining environment temperature and battery temperature in battery charging process, and according to the electricity Pond temperature draws battery temperature rate of change；Described control unit, for judging whether to meet default cooling according to current environment temperature and battery temperature rate of change Condition；If satisfied, the first cooling circuit of control and the second cooling circuit are both turned on；Otherwise, current battery temperature change is detected Whether rate reaches setting rate of change, if reaching, the conducting of the first cooling circuit of control, the second cooling circuit block；In the on-state, the flowing based on coolant cools down battery to first cooling circuit；Second cooling circuit exists Under conducting state, the coolant in first cooling circuit is cooled by the air conditioner coolant of vehicle；Wherein, the cooling condition is the first temperature threshold that environment temperature is more than or equal to setting, and battery temperature rate of change is big In equal to setting rate of change.
- 2. the system of vehicle battery charging cooling according to claim 1, it is characterised in that also include：Battery management list Member, judge whether startup fast charge pattern for detecting charging current, and according to the charging current；Described control unit, if it is fast charge pattern to be additionally operable to the current charge mode of battery, controlled according to battery temperature rate of change The conducting of first cooling circuit and the second cooling circuit/block, if not fast charge pattern, then according to current environment temperature Judge whether to meet default cooling condition with battery temperature rate of change；It is described according to battery temperature rate of change control the conducting of first cooling circuit and the second cooling circuit/block including： Whether detection battery temperature rate of change reaches setting rate of change, no to reach, and controls the first cooling circuit and the second cooling circuit It is both turned on, if not up to, the conducting of the first cooling circuit of control, the second cooling circuit block, or the first cooling circuit of control, the Two cooling circuits block.
- 3. the system of vehicle battery charging cooling according to claim 1 or 2, it is characterised in that also include：Coolant is examined Unit is surveyed, for detecting the pressure and flow velocity of coolant in the first cooling circuit；Described control unit, it is additionally operable to after first cooling circuit turns on, according to current battery temperature, coolant Pressure and flow velocity determine the goal pressure and target flow rate of coolant in the first cooling circuit；And according to the goal pressure and mesh Mark circulating pressure and flow velocity that flow velocity adjusts coolant in the first cooling circuit.
- 4. the system of vehicle battery charging cooling according to claim 1 or 2, it is characterised in that also include：Heating dress Put, the coolant in the first cooling circuit is heated when the heater starts；Described control unit, it is additionally operable in battery charging process, whether detection current environmental temperature is less than the second temperature set Threshold value is spent, if being less than, controls the conducting of the first cooling circuit, the second cooling circuit to block, and start the heater.
- 5. the system of vehicle battery charging cooling according to claim 4, it is characterised in that the first cooling circuit bag Include：Electric water pump, electric T-shaped valve, battery radiator, expansion tank and liquid liquid heat exchanger；The delivery port of the entrance connection Battery case of the electric T-shaped valve, the first outlet connection liquid liquid of the electric T-shaped valve The first entrance of heat exchanger, the entrance of the second outlet connection battery radiator of the electric T-shaped valve；The battery radiating The entrance of the outlet connection expansion tank of device, the exporting of the expansion tank, the first outlet of the liquid liquid heat exchanger is all connected with electricity The water inlet of dynamic water pump, the water inlet of the delivery port connection Battery case of the electric water pump；Described control unit is by controlling the electric T-shaped valve to realize the conducting of the first cooling circuit/block, by controlling Electric water pump regulation is stated into the flow velocity of the coolant of Battery case, by controlling the expansion tank to adjust in the first cooling circuit Coolant pressure；Wherein, the first outlet of the electric T-shaped valve connects the first entrance of liquid liquid heat exchanger by heater.
- 6. the system of vehicle battery charging cooling according to claim 5, it is characterised in that the second cooling circuit bag Include：Compressor of air conditioner, air-conditioning condenser, evaporator, switch member, the first expansion valve and the second expansion valve；The entrance of the outlet connection air-conditioning condenser of the compressor of air conditioner, the outlet of air-conditioning condenser is connected by the first expansion valve Connect the entrance of evaporator, the outlet of air-conditioning condenser also passes sequentially through switch member, the second expansion valve connection liquid liquid heat exchanger Second entrance, the outlet of evaporator, the second outlet of liquid liquid heat exchanger are all connected with the import of compressor of air conditioner；Described control unit is by controlling the switch member to realize the conducting of the second cooling circuit/block.
- A kind of 7. method of vehicle battery charging cooling, it is characterised in that including：The environment temperature and battery temperature in battery charging process are obtained, and show that battery temperature changes according to the battery temperature Rate；Judge whether to meet default cooling condition according to current environment temperature and battery temperature rate of change；If satisfied, control First cooling circuit and the second cooling circuit are both turned on；Otherwise, detect whether current battery temperature rate of change reaches setting change Change speed, if reaching, the conducting of the first cooling circuit of control, the second cooling circuit block；Wherein, in the case where turning on first cooling circuit, the flowing cooling battery based on coolant；Turning on described the In the case of two cooling circuits, the coolant in first cooling circuit is cooled by the air conditioner coolant of vehicle；Wherein, the cooling condition is the first temperature threshold that environment temperature is more than or equal to setting, and battery temperature rate of change is big In equal to setting rate of change.
- 8. the method for vehicle battery charging cooling according to claim 7, it is characterised in that according to current environment temperature Judge whether also to include before meeting default cooling condition with battery temperature rate of change：Judge whether the current charge mode of battery is fast charge pattern；If fast charge pattern, then controlled according to battery temperature rate of change The conducting of first cooling circuit and the second cooling circuit/block；If not fast charge pattern, then according to current environment temperature Judge whether to meet default cooling condition with battery temperature rate of change；It is described according to battery temperature rate of change control the conducting of first cooling circuit and the second cooling circuit/block including： Whether detection battery temperature rate of change reaches setting rate of change, no to reach, and controls the first cooling circuit and the second cooling circuit It is both turned on, if not up to, the conducting of the first cooling circuit of control, the second cooling circuit block, or the first cooling circuit of control, the Two cooling circuits block.
- 9. the method for the vehicle battery charging cooling according to claim 7 or 8, it is characterised in that also including step：After the first cooling circuit is turned on, the pressure and flow velocity of coolant in the first cooling circuit are detected；According to current battery temperature, the pressure of coolant and flow velocity determine in the first cooling circuit the goal pressure of coolant and Target flow rate；And the circulating pressure and stream of coolant in the first cooling circuit are adjusted according to the goal pressure and target flow rate Speed.
- 10. the method for the vehicle battery charging cooling according to claim 7 or 8, it is characterised in that obtain battery and charged After environment temperature and battery temperature in journey, in addition to step：The second temperature threshold value whether current environmental temperature is less than setting is detected, if being less than, control the first cooling circuit to turn on, Second cooling circuit blocks, and starts default heater；The heater can cool down to first in the start-up conditions Coolant heating in loop.
- A kind of 11. device of vehicle battery charging cooling, it is characterised in that including：Temperature detecting module, for obtaining environment temperature and battery temperature in battery charging process, and according to the battery temperature Degree draws battery temperature rate of change；Cooling circuit control module, it is default for judging whether to meet according to current environment temperature and battery temperature rate of change Cooling condition；If satisfied, the first cooling circuit of control and the second cooling circuit are both turned on；Otherwise, current battery temperature is detected Whether rate of change reaches setting rate of change, if reaching, the conducting of the first cooling circuit of control, the second cooling circuit block；Wherein, in the case where turning on first cooling circuit, the flowing cooling battery based on coolant；Turning on described the In the case of two cooling circuits, the coolant in first cooling circuit is cooled by the air conditioner coolant of vehicle；Wherein, the cooling condition is the first temperature threshold that environment temperature is more than or equal to setting, and battery temperature rate of change is big In equal to setting rate of change.
- 12. the device of vehicle battery charging cooling according to claim 11, it is characterised in that the cooling circuit control Module, be additionally operable to according to current environment temperature and battery temperature rate of change judge whether to meet default cooling condition it Before, judge whether the current charge mode of battery is fast charge pattern；If fast charge pattern, then institute is controlled according to battery temperature rate of change State the conducting of the first cooling circuit and the second cooling circuit/block；If not fast charge pattern, then according to current environment temperature and Battery temperature rate of change judges whether to meet default cooling condition；It is described according to battery temperature rate of change control the conducting of first cooling circuit and the second cooling circuit/block including： Whether detection battery temperature rate of change reaches setting rate of change, no to reach, and controls the first cooling circuit and the second cooling circuit It is both turned on, if not up to, the conducting of the first cooling circuit of control, the second cooling circuit block, or the first cooling circuit of control, the Two cooling circuits block.
- 13. the device of the vehicle battery charging cooling according to claim 11 or 12, it is characterised in that the cooling circuit Control module, it is additionally operable to after the first cooling circuit is turned on, according to cold in current battery temperature, current first cooling circuit But the pressure of liquid and flow velocity determine the goal pressure and target flow rate of coolant in first cooling circuit；And according to the mesh Mark pressure and target flow rate adjusts the circulating pressure and flow velocity of coolant in the first cooling circuit.
- 14. the device of the vehicle battery charging cooling according to claim 11 or 12, it is characterised in that the cooling circuit Control module, whether it is additionally operable to detect current environmental temperature less than the second temperature threshold value set, if being less than, control first is cold But loop conducting, the second cooling circuit block, and start default heater；The heater in the start-up conditions can Coolant in first cooling circuit is heated.
- 15. a kind of computer read/write memory medium, it is characterised in that be stored thereon with the computer program that can be performed, institute When stating computer program and being performed, the step of claim 7 to 10 any methods described can be realized.
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Effective date of registration: 20211229 Address after: 511434 No. 36, Longying Road, Shilou Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: GAC AION New Energy Vehicle Co.,Ltd. Address before: 510030 23 building, Cheng Yue mansion 448-458, Dongfeng Middle Road, Yuexiu District, Guangzhou, Guangdong. Patentee before: GUANGZHOU AUTOMOBILE GROUP Co.,Ltd. |