CN108284763A - Battery cool-down method, device and computer readable storage medium - Google Patents
Battery cool-down method, device and computer readable storage medium Download PDFInfo
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- CN108284763A CN108284763A CN201810067255.8A CN201810067255A CN108284763A CN 108284763 A CN108284763 A CN 108284763A CN 201810067255 A CN201810067255 A CN 201810067255A CN 108284763 A CN108284763 A CN 108284763A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
-
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—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
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/545—Temperature
-
- 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
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a kind of battery cool-down method, device and computer readable storage mediums, belong to Vehicle Engineering technical field.The method includes：Detect the temperature of the battery of electric vehicle；When the temperature of the battery of the electric vehicle is greater than or equal to the first preset temperature, the temperature of the battery based on the electric vehicle determines the rotating speed of the on-board air conditioner of the electric vehicle；Rotating speed based on the on-board air conditioner, the refrigerant of the on-board air conditioner is driven to cool down the circulation anti-freezing liquid in the battery cooling pipe of the battery, to realize that the battery of the electric vehicle is surrounded in the cooling to the battery of the electric vehicle, the battery cooling pipe.For the present invention by adjusting the rotating speed of on-board air conditioner, it is the rotating speed for being suitble to cool down to battery to make the rotating speed of on-board air conditioner, to accelerate the speed to cool down to battery, avoids on-board air conditioner and works for a long time, reduce the power consumption of on-board air conditioner.
Description
Technical field
The present invention relates to Vehicle Engineering technical field, more particularly to a kind of battery cool-down method, device and computer-readable
Storage medium.
Background technology
With becoming increasingly conspicuous for energy and environment problem, the cry of new energy technology is higher and higher, and Development of EV is
It is trend of the times.Core of the battery as electric vehicle, the performance and used life of battery directly determine electric vehicle
Performance and cost.But since the battery temperature of electric vehicle is too high, when exceeding the permission operating temperature range of battery, can lead
Send a telegraph the decline of tank discharge ability, so as to cause electric vehicle can not normally travel, therefore in order to ensure the normal row of electric vehicle
It sails, it usually needs cooling processing is carried out to battery.
Currently, a set of liquid cooling system can be arranged in electric vehicle, which includes on-board air conditioner and CHILLER heat
Exchanger includes circulation anti-freezing liquid in the CHILLER heat exchangers, which can utilize circulation anti-freezing liquid thermal capacity
Performance big and that battery waste heat can be taken away by the cycle in battery cooling pipe, realizes the cooling to battery.Its
In, when carrying out battery cooling processing, circulation anti-freezing liquid can enter in battery cooling pipe, and the compressor of the on-board air conditioner can
To drive refrigerant to cool down circulation anti-freezing liquid, to achieve the purpose that cool down to battery.
But due to when cooling down to battery, if the temperature of battery does not drop to preset temperature, needing always
Cooling processing is carried out to battery, the compressor of on-board air conditioner will always be in working condition, so as to cause on-board air conditioner resource
Waste, improves the power consumption of on-board air conditioner.
Invention content
An embodiment of the present invention provides a kind of battery cool-down method, device and computer readable storage mediums, for solving
In the related technology when carrying out battery cooling, the big problem of on-board air conditioner power consumption.The technical solution is as follows：
In a first aspect, a kind of battery cool-down method is provided, the method includes：
Detect the temperature of the battery of electric vehicle；
When the temperature of the battery of the electric vehicle is greater than or equal to the first preset temperature, based on the electric vehicle
The temperature of battery determines the rotating speed of the on-board air conditioner of the electric vehicle；
Based on the rotating speed of the on-board air conditioner, drive the refrigerant of the on-board air conditioner to the battery cooling tube of the battery
Circulation anti-freezing liquid in road is cooled down, to realize the cooling to the battery of the electric vehicle, the battery cooling pipe packet
Enclose the battery of the electric vehicle.
Optionally, the temperature based on the batteries of electric automobile determines turning for the on-board air conditioner of the electric vehicle
Before speed, further include：
The circulation anti-freezing liquid controlled in the heat exchanger of the electric vehicle enters in the battery cooling pipe, with to institute
The battery for stating electric vehicle cools down；
When detecting that the temperature of battery of the electric vehicle is more than the second preset temperature in the first preset duration, hold
The temperature of the row battery based on the electric vehicle, determines the operation of the rotating speed of the on-board air conditioner of the electric vehicle.
Optionally, the temperature based on the batteries of electric automobile determines turning for the on-board air conditioner of the electric vehicle
Speed, including：
Determine the temperature gap between the temperature of the battery of the electric vehicle and the second preset temperature, and described in determination
The rate of temperature change of the battery of electric vehicle；
Based on the temperature gap and the rate of temperature change, proportional-integral-differential PID in the on-board air conditioner is adjusted
The pid parameter of controller, the pid parameter are used to change the operating parameter of the on-board air conditioner；
Based on the pid parameter, the rotating speed of the on-board air conditioner is determined.
Optionally, the rate of temperature change of the battery of the determination electric vehicle, including：
Determine that the duration between target detection moment and current detection moment, the target detection moment are located at described current
Before detection moment, and the second preset duration is differed between the target detection moment and the current detection moment；
Determine that the temperature of the battery of the electric vehicle between the target detection moment and the current detection moment becomes
Change value；
By the temperature change value divided by second preset duration, electric vehicle described in the current detection moment is obtained
Battery rate of temperature change.
Optionally, the rotating speed based on the on-board air conditioner drives the refrigerant of the on-board air conditioner to the battery
Battery cooling pipe in circulation anti-freezing liquid cooled down, to realize the cooling to the battery of the electric vehicle, including：
The compressor of the on-board air conditioner is controlled according to the rotating speed of the on-board air conditioner, drives the on-board air conditioner condensing zone
In refrigerant import the battery cooling pipe, under the action of the refrigerant, in the battery cooling pipe
Circulation anti-freezing liquid is cooled down, so that the heat of the battery of the electric vehicle is taken away in cyclic process, to realize to described
The cooling of the battery of electric vehicle.
Second aspect, provides a kind of battery heat sink, and described device includes：
Detection module, the temperature of the battery for detecting electric vehicle；
Determining module, for when the temperature of the battery of the electric vehicle is greater than or equal to the first preset temperature, being based on
The temperature of the battery of the electric vehicle determines the rotating speed of the on-board air conditioner of the electric vehicle；
Drive module is used for the rotating speed based on the on-board air conditioner, drives the refrigerant of the on-board air conditioner to the electricity
Circulation anti-freezing liquid in the battery cooling pipe in pond is cooled down, described to realize the cooling to the battery of the electric vehicle
Battery cooling pipe surrounds the battery of the electric vehicle.
Optionally, described device further includes：
Control module, the circulation anti-freezing liquid in heat exchanger for controlling the electric vehicle are cooled down into the battery
In pipeline, cooled down with the battery to the electric vehicle；
Trigger module is more than second for the temperature when the battery for detecting the electric vehicle in the first preset duration
When preset temperature, the temperature of battery of the determining module based on the electric vehicle is triggered, determines the vehicle of the electric vehicle
Carry the rotating speed of air-conditioning.
Optionally, the determining module includes：
First determination sub-module, the temperature between the temperature of the battery for determining the electric vehicle and the second preset temperature
Difference is spent, and determines the rate of temperature change of the battery of the electric vehicle；
Submodule is adjusted, for being based on the temperature gap and the rate of temperature change, adjusts in the on-board air conditioner and compares
The pid parameter of example-Integrated Derivative PID controller, the pid parameter are used to change the operating parameter of the on-board air conditioner；
Second determination sub-module determines the rotating speed of the on-board air conditioner for being based on the pid parameter.
Optionally, first determination sub-module is used for：
Determine that the duration between target detection moment and current detection moment, the target detection moment are located at described current
Before detection moment, and the second preset duration is differed between the target detection moment and the current detection moment；
Determine that the temperature of the battery of the electric vehicle between the target detection moment and the current detection moment becomes
Change value；
By the temperature change value divided by second preset duration, electric vehicle described in the current detection moment is obtained
Battery rate of temperature change.
Optionally, the drive module includes：
Control submodule, the compressor for controlling the on-board air conditioner drive institute according to the rotating speed of the on-board air conditioner
It states refrigerant in on-board air conditioner condensing zone and imports the battery cooling pipe, under the action of the refrigerant, to described
Circulation anti-freezing liquid in battery cooling pipe is cooled down, to take away the heat of the battery of the electric vehicle in cyclic process
Amount, to realize the cooling to the battery of the electric vehicle.
The third aspect provides a kind of computer readable storage medium, computer program is stored in the storage medium,
The computer program realizes any method in above-mentioned first aspect when being executed by processor.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：
In embodiments of the present invention, the temperature of the battery of electric vehicle can be detected, and is more than or waits in the temperature of battery
When the first preset temperature, the rotating speed of on-board air conditioner is determined, later, can drive vehicle-mounted sky according to the rotating speed of the on-board air conditioner
The refrigerant of tune cools down the circulation anti-freezing liquid in the battery cooling pipe of battery, to realize to the battery of electric vehicle
Cooling.Due to the rotating speed for the on-board air conditioner that can adjust electric vehicle according to the temperature of currently detected battery, make vehicle-mounted sky
The rotating speed of tune is that the rotating speed to cool down to battery is suitble to avoid on-board air conditioner to accelerate the speed to cool down to battery
It works for a long time, reduces the power consumption of on-board air conditioner.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of flow chart of battery cool-down method provided in an embodiment of the present invention；
Fig. 2 is the flow chart of another battery cool-down method provided in an embodiment of the present invention；
Fig. 3 A are a kind of structural schematic diagrams of battery heat sink provided in an embodiment of the present invention；
Fig. 3 B are the structural schematic diagrams of another battery heat sink provided in an embodiment of the present invention；
Fig. 3 C are a kind of structural schematic diagrams of determining module provided in an embodiment of the present invention；
Fig. 3 D are a kind of structural schematic diagrams of drive module provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of electric vehicle provided in an embodiment of the present invention.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Before carrying out detailed explanation to the embodiment of the present invention, the first application to being arrived involved in the embodiment of the present invention
Scene is explained.
With the development of electric vehicle, to the battery of electric vehicle cooled down be urgent need to resolve the problem of.But mesh
When the preceding battery to electric vehicle cools down, the on-board air conditioner of electric vehicle needs to run always, until the temperature of battery
Until reaching preset temperature.If the temperature of battery delays to reach preset temperature, on-board air conditioner needs ceaselessly to run,
To waste the resource of on-board air conditioner, the power consumption of on-board air conditioner is improved.
Based on such scene, an embodiment of the present invention provides a kind of battery cool-down methods reducing on-board air conditioner power consumption.
It, next will be in conjunction with attached drawing to the embodiment of the present invention after the application scenarios to the embodiment of the present invention are introduced
The battery cool-down method of offer describes in detail.
Fig. 1 is a kind of flow chart of battery cool-down method provided in an embodiment of the present invention, and referring to Fig. 1, this method is applied to
In electric vehicle, include the following steps.
Step 101：Detect the temperature of the battery of electric vehicle.
Step 102：When the temperature of the battery of the electric vehicle is greater than or equal to the first preset temperature, it is based on the electronic vapour
The temperature of the battery of vehicle determines the rotating speed of the on-board air conditioner of the electric vehicle.
Step 103：Rotating speed based on the on-board air conditioner drives the refrigerant of the on-board air conditioner to cool down the battery of the battery
Circulation anti-freezing liquid in pipeline is cooled down, to realize that the cooling to the battery of the electric vehicle, the battery cooling pipe are surrounded
The battery of the electric vehicle.
In embodiments of the present invention, the temperature of the battery of electric vehicle can be detected, and is more than or waits in the temperature of battery
When the first preset temperature, the rotating speed of on-board air conditioner is determined, later, can drive vehicle-mounted sky according to the rotating speed of the on-board air conditioner
The refrigerant of tune cools down the circulation anti-freezing liquid in the battery cooling pipe of battery, to realize to the battery of electric vehicle
Cooling.Due to the rotating speed for the on-board air conditioner that can adjust electric vehicle according to the temperature of currently detected battery, make vehicle-mounted sky
The rotating speed of tune is that the rotating speed to cool down to battery is suitble to avoid on-board air conditioner to accelerate the speed to cool down to battery
It works for a long time, reduces the power consumption of on-board air conditioner.
Optionally, the temperature based on the batteries of electric automobile, before the rotating speed for determining the on-board air conditioner of the electric vehicle, also
Including：
The circulation anti-freezing liquid controlled in the heat exchanger of the electric vehicle enters in the battery cooling pipe, with electronic to this
The battery of automobile cools down；
When detecting that the temperature of battery of the electric vehicle is more than the second preset temperature in the first preset duration, execute
The temperature of the battery based on the electric vehicle determines the operation of the rotating speed of the on-board air conditioner of the electric vehicle.
Optionally, the temperature based on the batteries of electric automobile determines the rotating speed of the on-board air conditioner of the electric vehicle, including：
It determines the temperature gap between the temperature of the battery of the electric vehicle and the second preset temperature, and determines that this is electronic
The rate of temperature change of the battery of automobile；
Based on the temperature gap and the rate of temperature change, proportional-integral-differential PID controller in the on-board air conditioner is adjusted
Pid parameter, which is used to change the operating parameter of the on-board air conditioner；
Based on the pid parameter, the rotating speed of the on-board air conditioner is determined.
Optionally it is determined that the rate of temperature change of the battery of the electric vehicle, including：
Determine the duration between target detection moment and current detection moment, which is located at the current detection
Before moment, and the second preset duration is differed between the target detection moment and the current detection moment；
Determine the temperature change value of the battery of the electric vehicle between target detection moment and the current detection moment；
By the temperature change value divided by second preset duration, the battery of the current detection moment electric vehicle is obtained
Rate of temperature change.
Optionally, the rotating speed based on the on-board air conditioner drives the refrigerant of the on-board air conditioner to cool down the battery of the battery
Circulation anti-freezing liquid in pipeline is cooled down, to realize the cooling to the battery of the electric vehicle, including：
The compressor of the on-board air conditioner is controlled according to the rotating speed of the on-board air conditioner, drives the system in the on-board air conditioner condensing zone
Cryogen imports the battery cooling pipe, under the action of the refrigerant, to the circulation anti-freezing liquid in the battery cooling pipe into
Row cooling, so that the heat of the battery of the electric vehicle is taken away in cyclic process, to realize to the battery of the electric vehicle
Cooling.
Above-mentioned all optional technical solutions, can form the alternative embodiment of the present invention according to any combination, and the present invention is real
Example is applied no longer to repeat this one by one.
Fig. 2 is a kind of flow chart of battery cool-down method provided in an embodiment of the present invention, and referring to Fig. 2, this method includes such as
Lower step.
Step 201：Electric vehicle detects the temperature of the battery of electric vehicle.
Since in general, battery usually has the temperature range for being suitble to work, when the temperature of the battery of electric vehicle
When spending high, the temperature range for being suitble to battery work may be exceeded, at this point, the discharge capability of battery will decline, to meeting
For the driving for influencing to electric vehicle, traffic safety seriously may result in.Therefore, electronic in order to ensure battery regular picture
Automobile being capable of normal driving, it usually needs is detected to the temperature of the battery of electric vehicle.
Wherein, electric vehicle can be with the temperature of the battery of active detecting electric vehicle, can also passive detection electric vehicle
Battery temperature.When electric vehicle actively detects the temperature of the battery of electric vehicle, which can detect in real time
The temperature of the battery of the electric vehicle, can also be every the temperature of the battery of the primary electric vehicle of specified time interval detection.
The specified time interval can be arranged in advance, for example, the specified time interval can be 5 minutes, 10 minutes, 30 minutes etc..
In addition, when the temperature of the battery of the electric vehicle passive detection electric vehicle, which can receive temperature
Degree detection instruction, and when receiving temperature detection instruction, detect the temperature of the battery of electric vehicle.
It should be noted that temperature of the temperature detection instruction for the battery to electric vehicle is detected, the temperature
Detection instruction can be triggered by user by specified operation, which can be clicking operation, slide, voice operating
Etc..
Furthermore the temperature of the battery of detection electric vehicle for convenience, can usually be arranged temperature sensor on battery,
Electric vehicle can detect the temperature of the battery of electric vehicle by the temperature sensor of setting.
Step 202：When the temperature of the battery of the electric vehicle is greater than or equal to the first preset temperature, the electric vehicle base
In the temperature of the battery of the electric vehicle, the rotating speed of the on-board air conditioner of the electric vehicle is determined.
It should be noted that first preset temperature, which is the battery of limitation electric vehicle, carries out the temperature of electric discharge work, it should
First preset temperature can be arranged in advance, for example, first preset temperature can be 60 degrees Celsius, 70 degrees Celsius etc..
Due to when the temperature of the battery of the electric vehicle is greater than or equal to the first preset temperature, illustrating the current electronic vapour
The temperature of the battery of vehicle has been more than to be suitble to the temperature of battery regular picture, and the battery of electric vehicle possibly can not continue in height at this time
It discharges under temperature, will cause electric vehicle can not normally travel alternatively, the battery of electric vehicle continues electric discharge at high temperature.
Therefore, in order to make the battery regular picture of electric vehicle, make electric vehicle normal driving, in the battery temperature when electric vehicle
When degree is greater than or equal to the first preset temperature, it usually needs cool down to battery.And the cooling of battery is typically in electronic vapour
It is carried out under the driving of the on-board air conditioner of vehicle, the driving of on-board air conditioner depends on the rotating speed of on-board air conditioner, therefore, when the electronic vapour
When the temperature of the battery of vehicle is greater than or equal to the first preset temperature, which can be based on the temperature of the battery of the electric vehicle
Degree, determines the rotating speed of the on-board air conditioner of the electric vehicle.
Wherein, temperature of the electric vehicle based on the batteries of electric automobile determines the rotating speed of the on-board air conditioner of the electric vehicle
Operation can be：It determines the temperature gap between the temperature of the battery of the electric vehicle and the second preset temperature, and determines
The rate of temperature change of the battery of the electric vehicle；Based on the temperature gap and the rate of temperature change, PID in the on-board air conditioner is adjusted
The pid parameter of (Proportion Integration Differentiation, proportional-integral-differential) controller, the PID
Parameter is used to change the operating parameter of the on-board air conditioner；Based on the pid parameter, the rotating speed of the on-board air conditioner is determined.
It should be noted that the second preset temperature is the temperature for being suitble to the battery of electric vehicle to carry out regular picture, this
Two preset temperatures can be arranged in advance, for example, second preset temperature can be 30 degrees Celsius, 20 degrees Celsius etc..
In addition, electric vehicle determines that the operation of the rate of temperature change of the battery of the electric vehicle can be：Determine that target is examined
The duration between moment and current detection moment is surveyed, which is located at before the current detection moment, and the target
The second preset duration is differed between detection moment and the current detection moment；When determining that the target detection moment is with the current detection
The temperature change value of the battery of the electric vehicle between quarter；By the temperature change value divided by second preset duration, deserved
The rate of temperature change of the battery of the preceding detection moment electric vehicle.
It should be noted that second preset duration can be arranged in advance, for example, second preset duration can be 3 points
Clock, 5 minutes etc..
Since the PID controller of on-board air conditioner is used to manage the operation of on-board air conditioner, pid parameter can be changed and optimize vehicle
The operating parameter for carrying air-conditioning, therefore, in order to accelerate the cooling rate to battery, it usually needs determine vehicle-mounted sky by pid parameter
The rotating speed of tune.Under normal conditions, PID controller can determine the operating parameter of control on-board air conditioner, and PID according to specified formula
The parameter that the pid parameter of controller uses when specifying the operating parameter for determining on-board air conditioner in formula for this.Therefore, electronic
Pid parameter of the automobile based on PID controller in the temperature gap and rate of temperature change adjustment on-board air conditioner is exactly by specified formula
Used parameter is replaced when the middle operating parameter for calculating on-board air conditioner.
It should be noted that the specified formula can be arranged in advance, for example, the specified formula can be as follows.
Wherein, in above-mentioned specified formula (1), u (t) is the rotating speed of on-board air conditioner, and e (t) is that electric vehicle is examined in t moment
Temperature gap between the temperature of the battery measured and the second preset temperature, c (t) are the battery of electric vehicle in t moment battery
Rate of temperature change, kpFor proportionality coefficient set in advance, kiFor integral coefficient set in advance, kdFor differential set in advance
Coefficient, at the time of t is the temperature of detection battery,
Further, since electric vehicle is before the rotating speed of this determination on-board air conditioner, on-board air conditioner may be used
Other operations are carried out, for example, electric vehicle indoor temperature is adjusted, the rotating speed of on-board air conditioner is to have already passed through setting at this time
's.And the rotating speed being arranged before on-board air conditioner may meet the requirement this time quickly to cool down to battery, it is also possible to discontented
The requirement of sufficient fast cooling, if meeting the condition of fast cooling, the follow-up rotating speed for being just not necessarily to readjust on-board air conditioner,
To avoid leading to resource consumption due to the rotating speed to on-board air conditioner is adjusted.Therefore, in order to reduce resource consumption, when electronic
For automobile when the temperature for detecting battery is greater than or equal to the first preset temperature, which can also control the electric vehicle
Heat exchanger in circulation anti-freezing liquid enter the battery cooling pipe in, cooled down with the battery to the electric vehicle；When
When detecting that the temperature of the battery of the electric vehicle is more than the second preset temperature in the first preset duration, above-mentioned steps are executed
202 operation.
Due to when detected in the first preset duration the temperature of battery of the electric vehicle be more than the second preset temperature when,
Illustrate that the speed that the rotating speed according to the on-board air conditioner being arranged before cools down to battery is slow, continues according to current on-board air conditioner
Rotating speed cool down to battery the power consumption of on-board air conditioner will be caused excessive, therefore, in order to reduce the power consumption of on-board air conditioner, when
When detecting that the temperature of the battery of the electric vehicle is more than the second preset temperature in the first preset duration, above-mentioned steps are executed
202 operation.
It should be noted that first preset duration can be arranged in advance, for example, first preset duration can be 5 points
Clock, 10 minutes etc..
Step 203：Rotating speed of the electric vehicle based on the on-board air conditioner, drives the refrigerant of the on-board air conditioner to the battery
Circulation anti-freezing liquid in battery cooling pipe is cooled down, to realize the cooling to the battery of the electric vehicle, battery cooling
Pipeline surrounds the battery of the electric vehicle.
Wherein, rotating speed of the electric vehicle based on the on-board air conditioner drives the refrigerant of the on-board air conditioner to the electricity of the battery
Circulation anti-freezing liquid in the cooling pipe of pond is cooled down, and can be to the operation of the cooling of the battery of the electric vehicle to realize：
The compressor of the on-board air conditioner is controlled according to the rotating speed of the on-board air conditioner, the refrigerant in the on-board air conditioner condensing zone is driven to import
The battery cooling pipe, under the action of the refrigerant, to be cooled down to the circulation anti-freezing liquid in the battery cooling pipe, from
And the heat of the battery of the electric vehicle is taken away in cyclic process, to realize the cooling to the battery of the electric vehicle.
It is worth noting that since the rotating speed of on-board air conditioner is to be determined by pid parameter, and pid parameter is the temperature by battery
What the rate of temperature change of temperature gap and battery between degree and the second preset temperature determined, therefore, the compression of on-board air conditioner
Machine according to determining on-board air conditioner rotary speed working when, can be quickly so that the temperature of battery is dropped to the second preset temperature, avoid
On-board air conditioner works long hours, and reduces the power consumption of on-board air conditioner.
In embodiments of the present invention, electric vehicle can detect battery temperature, and be greater than or equal to the in the temperature of battery
When one preset temperature, the pid parameter of the PID controller of control on-board air conditioner is determined, and on-board air conditioner is determined according to the pid parameter
Rotating speed the refrigerant of on-board air conditioner can be driven to the battery cooling pipe of battery according to the rotating speed of the on-board air conditioner later
Interior circulation anti-freezing liquid is cooled down, to realize the cooling to the battery of electric vehicle.Since electric vehicle can be according to current
The rotating speed of the temperature adjustment on-board air conditioner of the battery detected, it is to be suitble to turn to what battery cooled down to make the rotating speed of on-board air conditioner
Speed avoids on-board air conditioner and works for a long time, reduce the work(of on-board air conditioner to accelerate the speed to cool down to battery
Consumption.
After battery cool-down method provided in an embodiment of the present invention is explained, next, to of the invention real
The battery heat sink for applying example offer is introduced.
Fig. 3 A are a kind of block diagrams for battery heat sink that the embodiment of the present disclosure provides, referring to Fig. 3 A, battery cooling dress
Setting being implemented in combination with by software, hardware or both.The device includes：Detection module 301, determining module 302 and driving
Module 303.
Detection module 301, the temperature of the battery for detecting electric vehicle；
Determining module 302 is used for when the temperature of the battery of the electric vehicle is greater than or equal to the first preset temperature, base
In the temperature of the battery of the electric vehicle, the rotating speed of the on-board air conditioner of the electric vehicle is determined；
Drive module 303 is used for the rotating speed based on the on-board air conditioner, drives the refrigerant of the on-board air conditioner to described
Circulation anti-freezing liquid in the battery cooling pipe of battery is cooled down, to realize the cooling to the battery of the electric vehicle, institute
State the battery that battery cooling pipe surrounds the electric vehicle.
Optionally, referring to Fig. 3 B, described device further includes：
Control module 304, the circulation anti-freezing liquid in heat exchanger for controlling the electric vehicle enter the battery
In cooling pipe, cooled down with the battery to the electric vehicle；
Trigger module 305 detects that the temperature of the battery of the electric vehicle is more than for working as in the first preset duration
When the second preset temperature, the temperature of battery of the determining module based on the electric vehicle is triggered, determines the electric vehicle
On-board air conditioner rotating speed.
Optionally, referring to Fig. 3 C, the determining module 302 includes：
First determination sub-module 3021, between the temperature of the battery for determining the electric vehicle and the second preset temperature
Temperature gap, and determine the rate of temperature change of the battery of the electric vehicle；
Submodule 3022 is adjusted, for being based on the temperature gap and the rate of temperature change, adjusts the on-board air conditioner
The pid parameter of middle proportional-integral-differential PID controller, the pid parameter are used to change the operating parameter of the on-board air conditioner；
Second determination sub-module 3023 determines the rotating speed of the on-board air conditioner for being based on the pid parameter.
Optionally, first determination sub-module 3021 is used for：
Determine that the duration between target detection moment and current detection moment, the target detection moment are located at described current
Before detection moment, and the second preset duration is differed between the target detection moment and the current detection moment；
Determine that the temperature of the battery of the electric vehicle between the target detection moment and the current detection moment becomes
Change value；
By the temperature change value divided by second preset duration, electric vehicle described in the current detection moment is obtained
Battery rate of temperature change.
Optionally, referring to Fig. 3 D, the drive module 303 includes：
Control submodule 3031, the compressor for controlling the on-board air conditioner drive according to the rotating speed of the on-board air conditioner
The refrigerant moved in the on-board air conditioner condensing zone imports the battery cooling pipe, right under the action of the refrigerant
Circulation anti-freezing liquid in the battery cooling pipe is cooled down, to take away the battery of the electric vehicle in cyclic process
Heat, to realize the cooling to the battery of the electric vehicle.
In conclusion in embodiments of the present invention, electric vehicle can detect battery temperature, and be more than in the temperature of battery
Or when equal to the first preset temperature, the pid parameter of the PID controller of control on-board air conditioner is determined, and determine according to the pid parameter
The rotating speed of on-board air conditioner can drive the refrigerant of on-board air conditioner to the battery of battery according to the rotating speed of the on-board air conditioner later
Circulation anti-freezing liquid in cooling pipe is cooled down, to realize the cooling to the battery of electric vehicle.Since electric vehicle can be with
The rotating speed that on-board air conditioner is adjusted according to the temperature of currently detected battery, it is to be suitble to carry out battery to make the rotating speed of on-board air conditioner
The rotating speed of cooling avoids on-board air conditioner and works for a long time, reduce vehicle-mounted to accelerate the speed to cool down to battery
The power consumption of air-conditioning.
It should be noted that：The battery heat sink that above-described embodiment provides is when cooling down to battery, only with above-mentioned each work(
Can module division progress for example, in practical application, can be as needed and by above-mentioned function distribution by different functions
Module is completed, i.e., the internal structure of device is divided into different function modules, described above all or part of to complete
Function.In addition, the battery heat sink that above-described embodiment provides belongs to same design with battery cool-down method embodiment, it is specific
Realization process refers to embodiment of the method, and which is not described herein again.
Fig. 4 shows the structure diagram for the electric vehicle that an illustrative embodiment of the invention provides.In general, electric vehicle
Include：Processor 401 and memory 402.
Processor 401 may include one or more processing cores, such as 4 core processors, 8 core processors etc..Place
DSP (Digital Signal Processing, Digital Signal Processing), FPGA (Field- may be used in reason device 401
Programmable Gate Array, field programmable gate array), PLA (Programmable LogicArray, may be programmed
Logic array) at least one of example, in hardware realize.Memory 402 may include one or more computer-readable storages
Medium, the computer readable storage medium can be non-transient.Memory 402 may also include high-speed random access memory,
And nonvolatile memory, such as one or more disk storage equipments, flash memory device.In some embodiments, it deposits
For storing at least one instruction, which is used for non-transient computer readable storage medium in reservoir 402
It is performed to realize the battery cool-down method of embodiment of the method offer in the application by processor 401.
In some embodiments, electric vehicle is also optional includes：CAN (Controller AreaNetwork, controller
Local area network) bus 403 and at least one peripheral equipment.Processor 401 and memory 402 can by CAN bus 403 with it is each
A peripheral equipment connection.Specifically, peripheral equipment includes：Radio circuit 404, touch display screen 405, camera 406, audio-frequency electric
At least one of road 407, positioning component 408 and power supply 409.
CAN bus 403 can be used at least one peripheral equipment being connected to processor 401 and memory 402.At some
In embodiment, processor 401, memory 402 and CAN bus 403 are integrated on same chip or circuit board；Some other
In embodiment, any one or two in processor 401, memory 402 and CAN bus 403 can in individual chip or
It is realized on circuit board, the present embodiment is not limited this.
Radio circuit 404 is for receiving and emitting RF (Radio Frequency, radio frequency) signal, also referred to as electromagnetic signal.It penetrates
Frequency circuit 404 is communicated by electromagnetic signal with communication network and other communication equipments.Radio circuit 404 turns electric signal
It is changed to electromagnetic signal to be sent, alternatively, the electromagnetic signal received is converted to electric signal.Radio circuit 404 can pass through
At least one wireless communication protocol is communicated with other terminals.The wireless communication protocol includes but not limited to：WWW, city
Domain net, Intranet, each third generation mobile communication network (2G, 3G, 4G and 5G), WLAN and/or WiFi (Wireless
Fidelity, Wireless Fidelity) network.In some embodiments, radio circuit 404 can also include NFC (Near Field
Communication, wireless near field communication) related circuit, the application is not limited this.
Display screen 405 is for showing UI (User Interface, user interface).The UI may include figure, text, figure
Mark, video and its their arbitrary combination.When display screen 405 is touch display screen, display screen 405 also there is acquisition to show
The ability of the surface of screen 405 or the touch signal of surface.The touch signal can be used as control signal to be input to processor
401 are handled.
CCD camera assembly 406 is for acquiring image or video.Optionally, CCD camera assembly 406 is at least two.
Voicefrequency circuit 407 may include microphone and loud speaker.Microphone is used to acquire the sound wave of user and environment, and will
Sound wave, which is converted to electric signal and is input to processor 401, to be handled, or is input to radio circuit 404 to realize voice communication.
For stereo acquisition or the purpose of noise reduction, microphone can be multiple, be separately positioned on the different parts of electric vehicle.Mike
Wind can also be array microphone or omnidirectional's acquisition type microphone.Loud speaker is then used to that processor 401 or radio circuit will to be come from
404 electric signal is converted to sound wave.Loud speaker can be traditional wafer speaker, can also be piezoelectric ceramic loudspeaker.When
When loud speaker is piezoelectric ceramic loudspeaker, the audible sound wave of the mankind can be not only converted electrical signals to, it can also be by telecommunications
Number the sound wave that the mankind do not hear is converted to carry out the purposes such as ranging.
Positioning component 408 is used to position the current geographic position of electric vehicle, to realize navigation or LBS (Location
Based Service, location based service).Positioning component 408 can be the GPS (Global based on the U.S.
Positioning System, global positioning system), China dipper system or Russia Galileo system positioning group
Part.
Power supply 409 is used to be powered for the various components in electric vehicle.
In some embodiments, electric vehicle further include there are one or multiple sensors 410.The one or more sensors
410 include but not limited to：Temperature sensor 411.
It will be understood by those skilled in the art that structure shown in Fig. 4 does not constitute the restriction to electric vehicle, can wrap
It includes than illustrating more or fewer components, either combine certain components or is arranged using different components.
It that is to say, the embodiment of the present invention provides not only a kind of vehicle for executing the battery cool-down method of above-described embodiment
, a kind of computer readable storage medium is additionally provided, computer program is stored in the storage medium, the computer program quilt
The battery cool-down method of above-described embodiment may be implemented in processor when executing.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of battery cool-down method, which is characterized in that the method includes：
Detect the temperature of the battery of electric vehicle；
When the temperature of the battery of the electric vehicle is greater than or equal to the first preset temperature, the battery based on the electric vehicle
Temperature, determine the rotating speed of the on-board air conditioner of the electric vehicle；
Based on the rotating speed of the on-board air conditioner, drive the refrigerant of the on-board air conditioner in the battery cooling pipe of the battery
Circulation anti-freezing liquid cooled down, to realize that institute is surrounded in the cooling to the battery of the electric vehicle, the battery cooling pipe
State the battery of electric vehicle.
2. the method as described in claim 1, which is characterized in that the temperature based on the batteries of electric automobile determines institute
Before the rotating speed for stating the on-board air conditioner of electric vehicle, further include：
The circulation anti-freezing liquid controlled in the heat exchanger of the electric vehicle enters in the battery cooling pipe, with to the electricity
The battery of electrical automobile cools down；
When detecting that the temperature of battery of the electric vehicle is more than the second preset temperature in the first preset duration, institute is executed
The temperature for stating the battery based on the electric vehicle determines the operation of the rotating speed of the on-board air conditioner of the electric vehicle.
3. method as claimed in claim 1 or 2, which is characterized in that the temperature based on the batteries of electric automobile determines
The rotating speed of the on-board air conditioner of the electric vehicle, including：
Determine the temperature gap between the temperature of the battery of the electric vehicle and the second preset temperature, and determining described electronic
The rate of temperature change of the battery of automobile；
Based on the temperature gap and the rate of temperature change, proportional-integral-differential PID control in the on-board air conditioner is adjusted
The pid parameter of device, the pid parameter are used to change the operating parameter of the on-board air conditioner；
Based on the pid parameter, the rotating speed of the on-board air conditioner is determined.
4. method as claimed in claim 3, which is characterized in that the temperature change of the battery of the determination electric vehicle
Rate, including：
Determine that the duration between target detection moment and current detection moment, the target detection moment are located at the current detection
Before moment, and the second preset duration is differed between the target detection moment and the current detection moment；
Determine the temperature change value of the battery of the electric vehicle between the target detection moment and the current detection moment；
By the temperature change value divided by second preset duration, the electricity of electric vehicle described in the current detection moment is obtained
The rate of temperature change in pond.
5. the method as described in claim 1, which is characterized in that the rotating speed based on the on-board air conditioner drives the vehicle
The refrigerant for carrying air-conditioning cools down the circulation anti-freezing liquid in the battery cooling pipe of the battery, to realize to described electronic
The cooling of the battery of automobile, including：
The compressor of the on-board air conditioner is controlled according to the rotating speed of the on-board air conditioner, is driven in the on-board air conditioner condensing zone
Refrigerant imports the battery cooling pipe, under the action of the refrigerant, to the cycle in the battery cooling pipe
Anti-icing fluid is cooled down, so that the heat of the battery of the electric vehicle is taken away in cyclic process, to realize to described electronic
The cooling of the battery of automobile.
6. a kind of battery heat sink, which is characterized in that described device includes：
Detection module, the temperature of the battery for detecting electric vehicle；
Determining module, for when the temperature of the battery of the electric vehicle is greater than or equal to the first preset temperature, being based on described
The temperature of the battery of electric vehicle determines the rotating speed of the on-board air conditioner of the electric vehicle；
Drive module is used for the rotating speed based on the on-board air conditioner, drives the refrigerant of the on-board air conditioner to the battery
Circulation anti-freezing liquid in battery cooling pipe is cooled down, to realize the cooling to the battery of the electric vehicle, the battery
Cooling pipe surrounds the battery of the electric vehicle.
7. device as claimed in claim 6, which is characterized in that described device further includes：
Control module, the circulation anti-freezing liquid in heat exchanger for controlling the electric vehicle enter the battery cooling pipe
It is interior, cooled down with the battery to the electric vehicle；
Trigger module, for being preset when the temperature for the battery for detecting the electric vehicle in the first preset duration is more than second
When temperature, the temperature of battery of the determining module based on the electric vehicle is triggered, determines the vehicle-mounted sky of the electric vehicle
The rotating speed of tune.
8. device as claimed in claims 6 or 7, which is characterized in that the determining module includes：
First determination sub-module, the temperature difference between the temperature of the battery for determining the electric vehicle and the second preset temperature
Value, and determine the rate of temperature change of the battery of the electric vehicle；
Submodule is adjusted, for being based on the temperature gap and the rate of temperature change, adjusts ratio-product in the on-board air conditioner
Point-pid parameter of differential PID controller, the pid parameter is used to change the operating parameter of the on-board air conditioner；
Second determination sub-module determines the rotating speed of the on-board air conditioner for being based on the pid parameter.
9. device as claimed in claim 8, which is characterized in that first determination sub-module is used for：
Determine that the duration between target detection moment and current detection moment, the target detection moment are located at the current detection
Before moment, and the second preset duration is differed between the target detection moment and the current detection moment；
Determine the temperature change value of the battery of the electric vehicle between the target detection moment and the current detection moment；
By the temperature change value divided by second preset duration, the electricity of electric vehicle described in the current detection moment is obtained
The rate of temperature change in pond.
10. a kind of computer readable storage medium, which is characterized in that computer program is stored in the storage medium, it is described
Any method in claim 1-5 is realized when computer program is executed by processor.
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