CN113764773A - Electric vehicle battery thermal management system, method, electronic device and storage medium - Google Patents
Electric vehicle battery thermal management system, method, electronic device and storage medium Download PDFInfo
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- CN113764773A CN113764773A CN202111033102.XA CN202111033102A CN113764773A CN 113764773 A CN113764773 A CN 113764773A CN 202111033102 A CN202111033102 A CN 202111033102A CN 113764773 A CN113764773 A CN 113764773A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 204
- 239000007788 liquid Substances 0.000 claims abstract description 128
- 230000033228 biological regulation Effects 0.000 claims abstract description 50
- 238000005086 pumping Methods 0.000 claims abstract description 41
- 238000004891 communication Methods 0.000 claims abstract description 36
- 230000001105 regulatory effect Effects 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims description 128
- 238000010438 heat treatment Methods 0.000 claims description 128
- 230000015654 memory Effects 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000005485 electric heating Methods 0.000 description 7
- 239000000284 extract Substances 0.000 description 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 3
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 108010066057 cabin-1 Proteins 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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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
-
- 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
- B60L58/27—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 heating
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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
- H01M10/615—Heating or keeping warm
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6571—Resistive heaters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- 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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- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
The application discloses an electric vehicle battery thermal management system, a method, electronic equipment and a storage medium. Electric automobile battery thermal management system includes: the temperature adjusting device comprises a temperature adjusting bin and a liquid pumping device; the temperature adjusting bin is communicated with the temperature adjusting water tank and is provided with a temperature adjusting device which is in communication connection with the controller; the controller is in communication connection with the liquid pumping device and outputs signals to the liquid pumping device according to the temperature of the water tank of the temperature-regulating water tank; the liquid pumping device pumps liquid from the temperature regulating water tank to the temperature regulating bin for temperature regulation according to the signal of the controller; or after the controller judges that the temperature of the liquid in the temperature adjusting bin is adjusted, the liquid is sent back to the temperature adjusting water tank from the temperature adjusting bin. This application can realize efficient temperature regulation in the storehouse that adjusts the temperature, then will pass through the liquid after temperature regulation and send back the temperature regulation water tank, improve the temperature regulation efficiency of the group battery in the temperature regulation water tank.
Description
Technical Field
The application relates to the technical field of automobile correlation, in particular to a battery thermal management system and method for an electric automobile, electronic equipment and a storage medium.
Background
The lithium ion power battery pack is used as a main energy storage element on the electric automobile, is a key part of the electric automobile, and directly influences the performance of the electric automobile. Lithium ion power batteries are currently well applied to electric vehicles due to their advantages such as excellent power output characteristics and long service life.
However, the performance of the lithium ion power battery is sensitive to temperature changes, and particularly, the large-capacity and high-power lithium ion battery applied to the vehicle has limited loading space on the vehicle, the number of batteries required by the vehicle is large, and the batteries are all tightly arranged and connected. When the vehicle runs under different running conditions of alternating high speed, low speed, acceleration, deceleration and the like, the battery can be discharged at different rates, a large amount of heat can be generated at different heat generation rates, and uneven heat accumulation can be generated due to time accumulation and space influence, so that the temperature of the running environment of the battery pack is complicated and variable. Because the heating battery bodies are arranged densely, the heat is inevitably accumulated more in the middle area, the edge area is less, the temperature imbalance among the monomers in the battery pack is increased, and the internal resistance and the capacity inconsistency of the monomers of the battery modules are aggravated. If the accumulation time is long, the over-charge and over-discharge of partial batteries can be caused, the service life and the performance of the batteries are further influenced, and potential safety hazards are caused. If the battery pack of the electric automobile cannot be ventilated and radiated in time at high temperature, the temperature of the battery pack system is overhigh or the temperature distribution is uneven, the charge-discharge cycle efficiency of the battery is reduced finally, the power and energy exertion of the battery are influenced, and thermal runaway is caused in serious conditions, and the safety and reliability of the battery are influenced; furthermore, at low temperatures, the electrochemical reactions inside the cell cannot operate properly due to temperature, requiring heating of the stack. Therefore, it is desirable to provide a thermal management system for an electric vehicle, which can control the temperature environment of the battery operation by adding cooling, heating and heat dissipation facilities to the battery pack for thermal management.
The existing thermal management system of the electric automobile generally adopts a water tank to heat or cool a battery pack. And cooling liquid, such as cooling water, is heated by the heating device or cooled by the cooling device and is conducted to the water tank to control the temperature of the battery pack.
However, in the existing thermal management system of the electric vehicle, a pipeline in which a temperature adjusting device of a heating device or a cooling device is located forms a loop with a water tank. When the cooling liquid is temperature-regulated, for example, heated or cooled, the temperature of the cooling liquid is regulated during the flow of the liquid. The heating efficiency or the cooling efficiency of the coolant is low. The coolant has left the heating device or the cooling device and entered the water tank without reaching the preset temperature, resulting in low heating efficiency or cooling efficiency of the battery.
Disclosure of Invention
Accordingly, it is necessary to provide an electric vehicle battery thermal management system, a thermal management control method of the electric vehicle battery thermal management system, an electronic device, and a storage medium, for solving the technical problem of low temperature regulation efficiency of the electric vehicle thermal management system in the prior art.
The application provides an electric automobile battery thermal management system includes: the battery pack temperature adjusting device comprises a controller, a temperature adjusting device and a temperature adjusting water tank for accommodating the battery pack, wherein the temperature adjusting device comprises a temperature adjusting bin and a liquid pumping device;
the temperature adjusting bin is communicated with the temperature adjusting water tank and is provided with a temperature adjusting device which is in communication connection with the controller;
the controller is in communication connection with the liquid pumping device and outputs signals to the liquid pumping device according to the water tank temperature of the temperature-adjusting water tank;
the liquid pumping device pumps liquid from the temperature regulating water tank to the temperature regulating bin for temperature regulation according to the signal of the controller; or
And after the controller judges that the temperature of the liquid in the temperature adjusting bin is adjusted, the liquid pumping device returns the liquid from the temperature adjusting bin to the temperature adjusting water tank according to the signal of the controller.
Further, the temperature adjusting device comprises a heating device and/or a cooling device, and the temperature adjusting bin comprises a heating bin provided with a heating device in communication connection with the controller and/or a cooling bin provided with a cooling device in communication connection with the controller;
the liquid pumping device pumps liquid from the temperature-regulating water tank to the heating chamber or returns liquid from the heating chamber to the temperature-regulating water tank according to a signal of the controller; or
The liquid pumping device pumps liquid from the temperature-regulating water tank to the cooling bin or returns liquid from the cooling bin to the temperature-regulating water tank according to a signal of the controller.
Still further, the liquid pumping device comprises: piston drive arrangement, first piston and second piston, wherein:
the heating bin is communicated with the temperature regulating water tank through a heating bin communication port, and the first piston is movably arranged in the heating bin;
the cooling bin is communicated with the temperature regulating water tank through a cooling bin communication port, and the second piston is movably arranged in the cooling bin;
the controller is in communication connection with the piston driving device, and outputs signals to the piston driving device according to the water tank temperature of the temperature-adjusting water tank, the piston driving device drives the first piston to be close to or far away from the heating bin communicating opening in the heating bin according to the signals of the controller, or the piston driving device drives the second piston to be close to or far away from the cooling bin communicating opening in the cooling bin according to the signals of the controller.
Still further, the piston driving device includes: the device comprises a motor and a rocker mechanism driven by the motor, wherein one end of the rocker mechanism is connected with the first piston, and the other end of the rocker mechanism is connected with the second piston.
Still further, the rocker mechanism comprises a rocker, a first linkage rod and a second linkage rod, the rocker is connected with the rotating shaft of the motor, the rocker is provided with a pivot shaft, one end of the first linkage rod is hinged with the pivot shaft, the other end of the first linkage rod is hinged with the first piston, one end of the second linkage rod is hinged with the pivot shaft, and the other end of the second linkage rod is hinged with the second piston.
Further, the heating bin is perpendicular to the cooling bin.
Further, the temperature regulating water tank is embedded with a battery pack placing groove for placing a battery pack.
Further, the heating bin is provided with a second temperature sensor in communication connection with the controller, and the cooling bin is provided with a third temperature sensor in communication connection with the controller.
The application provides a thermal management control method of the electric vehicle battery thermal management system, which comprises the following steps:
acquiring the water tank temperature of the temperature-adjusting water tank;
if the temperature of the water tank is lower than a preset first temperature threshold value, pumping liquid from the temperature-adjusting water tank to the heating chamber for heating, and after heating is finished, sending the liquid in the heating chamber back to the temperature-adjusting water tank;
and if the temperature of the water tank is higher than a preset second temperature threshold value, extracting liquid from the temperature-adjusting water tank to the cooling bin for cooling, and after cooling is finished, sending the liquid in the cooling bin back to the temperature-adjusting water tank.
Further, if the water tank temperature reaches the preset temperature condition, then according to the water tank temperature, from extract liquid in the temperature regulation water tank to the storehouse that adjusts the temperature that corresponds and carry out temperature regulation, and after temperature regulation finishes, with the liquid in the storehouse that adjusts the temperature returns the temperature regulation water tank specifically includes:
if the temperature of the water tank is lower than a preset first temperature threshold value, extracting liquid from the temperature-adjusting water tank to the heating bin, starting a heating device arranged in the heating bin for heating, closing the heating device after heating is finished, and returning the liquid in the heating bin to the temperature-adjusting water tank;
if the temperature of the water tank is higher than a preset second temperature threshold value, liquid is extracted from the temperature-adjusting water tank to the cooling bin, a cooling device arranged on the cooling bin is started to cool, after cooling is finished, the cooling device is closed, and the liquid in the cooling bin is sent back to the temperature-adjusting water tank.
Further:
the heating is completed as follows: the temperature of the heating bin reaches a preset heating temperature;
the cooling is finished as follows: the temperature of the cooling bin reaches a preset cooling temperature.
The application provides an electronic device, including:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to at least one of the processors; wherein the content of the first and second substances,
the memory stores instructions executable by at least one of the processors to enable the at least one of the processors to perform the thermal management control method of the electric vehicle battery thermal management system as described above.
The present application provides a storage medium storing computer instructions for executing all the steps of the thermal management control method of the electric vehicle battery thermal management system as described above when a computer executes the computer instructions.
This application will adjust the temperature the storehouse through setting up, will adjust the temperature the liquid in the water tank, extract and carry out temperature regulation to the storehouse that adjusts the temperature, accomplish the back at temperature regulation, just with liquid feed back temperature adjusting water tank. Consequently, this application can realize efficient temperature regulation in the storehouse that adjusts the temperature, then will pass through the liquid after temperature regulation and send back the temperature regulation water tank, improve the temperature regulation efficiency of the group battery in the temperature regulation water tank.
Drawings
Fig. 1 is a schematic structural diagram of a battery thermal management system of an electric vehicle according to an embodiment of the present application;
FIG. 2 is a circuit block diagram of a battery thermal management system of an electric vehicle according to an embodiment of the present disclosure;
FIG. 3 is a logic diagram illustrating operation of a battery thermal management system of an electric vehicle according to an embodiment of the present application;
FIG. 4 is a flowchart illustrating a method for controlling thermal management of a battery thermal management system of an electric vehicle according to an embodiment of the present application;
fig. 5 is a flow chart illustrating a management main state machine of a battery thermal management system of an electric vehicle according to an embodiment of the present application;
fig. 6 is a schematic diagram of a hardware structure of an electronic device according to the present application.
Description of the marks
1-a compartment; 2-a controller; 3-a temperature-adjusting water tank; 4-a battery pack placement groove; 5-a first temperature sensor; 6-a temperature adjusting device; 7-heating the bin; 71-a heating bin communication port; 8-a second temperature sensor; 9-a cooling bin; 91-cooling bin communicating port; 10-a third temperature sensor; 11-a first connection pipe; 12-an electric heating resistance wire; 13-a first piston; 14-a motor; 15-rocker; 151-pivot axis; 16-a first linkage rod; 17-a second connecting tube; 18-a condenser; 19-a second piston; 20-a second linkage; 21-a signal conversion circuit; 22-a first temperature control module; 23-a second temperature control module.
Detailed Description
The present application will now be described in further detail with reference to the accompanying drawings and specific examples.
Fig. 1 is a schematic structural diagram of a battery thermal management system of an electric vehicle according to an embodiment of the present application, including: the battery pack temperature adjusting device comprises a controller 2, a temperature adjusting device 6 and a temperature adjusting water tank 3 for accommodating a battery pack, wherein the temperature adjusting device 6 comprises a temperature adjusting bin and a liquid pumping device;
the temperature adjusting bin is communicated with the temperature adjusting water tank 3, and is provided with a temperature adjusting device which is in communication connection with the controller 2;
the controller 2 is in communication connection with the liquid pumping device and outputs a signal to the liquid pumping device according to the water tank temperature of the temperature-adjusting water tank 3;
the liquid pumping device pumps liquid from the temperature regulating water tank 3 to the temperature regulating bin for temperature regulation according to the signal of the controller 2; or
After the controller 2 judges that the temperature of the liquid in the temperature adjusting bin is adjusted, the liquid pumping device sends the liquid back to the temperature adjusting water tank 3 from the temperature adjusting bin according to the signal of the controller 2.
Specifically, the controller 2 may be a chip with processing capability such as a single chip Microcomputer (MCU), a Micro Controller Unit (MCU), and related circuits. The controller 2 may acquire the tank temperature of the temperature-adjusted water tank 3 through a first temperature sensor 5 provided at the temperature-adjusted water tank 3. And outputting a signal to the liquid pumping device according to the temperature of the water tank, wherein the output signal can be low level or high level.
After receiving the signal of the controller 2, the liquid pumping device pumps the liquid from the temperature-adjusting water tank 3 to the temperature-adjusting bin. The controller 2 controls the temperature adjusting device to adjust the temperature of the liquid in the temperature adjusting bin. After the temperature adjustment is finished, the controller 2 sends a signal to the liquid pumping device again, and after the liquid pumping device receives the signal of the controller 2, the liquid in the temperature adjusting bin is sent back to the temperature adjusting water tank 3. At this time, the liquid in the temperature-adjusting water tank 3 provides the temperature for the internal battery pack.
This application will adjust the temperature the storehouse through setting up, will adjust the temperature the liquid in the water tank, extract and carry out temperature regulation to the storehouse that adjusts the temperature, accomplish the back at temperature regulation, just with liquid feed back temperature adjusting water tank. Consequently, this application can realize efficient temperature regulation in the storehouse that adjusts the temperature, then will pass through the liquid after temperature regulation and send back the temperature regulation water tank, improve the temperature regulation efficiency of the group battery in the temperature regulation water tank.
Fig. 1 is a schematic structural diagram of a battery thermal management system of an electric vehicle according to another embodiment of the present application, including: the battery pack temperature adjusting device comprises a controller 2, a temperature adjusting device 6 and a temperature adjusting water tank 3 for accommodating a battery pack, wherein the temperature adjusting device 6 comprises a temperature adjusting bin and a liquid pumping device;
the temperature adjusting bin is communicated with the temperature adjusting water tank 3, and is provided with a temperature adjusting device which is in communication connection with the controller 2;
the controller 2 is in communication connection with the liquid pumping device and outputs a signal to the liquid pumping device according to the water tank temperature of the temperature-adjusting water tank 3;
the liquid pumping device pumps liquid from the temperature-regulating water tank 3 to the temperature-regulating cabin or returns liquid from the temperature-regulating cabin to the temperature-regulating water tank 3 according to a signal of the controller 2;
the temperature adjusting bin comprises a heating bin 7 and/or a cooling bin 9, and the temperature adjusting device comprises a heating device and/or a cooling device;
the heating bin 7 is communicated with the temperature-adjusting water tank 3, and the heating bin 7 is provided with a heating device in communication connection with the controller 2;
the cooling bin 9 is communicated with the temperature-adjusting water tank 3, and the cooling bin 9 is provided with a cooling device in communication connection with the controller 2;
the liquid pumping device pumps liquid from the temperature-regulating water tank 3 to the heating chamber 7 or returns liquid from the heating chamber 7 to the temperature-regulating water tank 3 according to a signal of the controller 2; or
The liquid pumping device pumps liquid from the temperature-regulating water tank 3 to the cooling bin 9 or returns liquid from the cooling bin 9 to the temperature-regulating water tank 3 according to a signal of the controller 2;
the liquid pumping device comprises: a piston drive, a first piston 13 and a second piston 19, wherein:
the heating bin 7 is communicated with the temperature-adjusting water tank 3 through a heating bin communication port 71, and the first piston 13 is movably arranged in the heating bin 7;
the cooling bin 9 is communicated with the temperature-adjusting water tank 3 through a cooling bin communication port 91, and the second piston 19 is movably arranged in the cooling bin 9;
the controller 2 is in communication connection with the piston driving device, and outputs a signal to the piston driving device according to the water tank temperature of the temperature-adjusting water tank 3, and the piston driving device drives the first piston 13 to approach or separate from the heating tank communication port 71 in the heating tank 7 according to the signal of the controller 2, or drives the second piston 19 to approach or separate from the cooling tank communication port 91 in the cooling tank 9 according to the signal of the controller 2;
the piston driving device includes: the device comprises a motor 14 and a rocker mechanism driven by the motor 14, wherein one end of the rocker mechanism is connected with the first piston 13, the other end of the rocker mechanism is connected with the second piston 19, the rocker mechanism comprises a rocker 15, a first linkage rod 16 and a second linkage rod 20, the rocker 15 is connected with a rotating shaft of the motor 14, a pivot shaft 151 is arranged on the rocker 15, one end of the first linkage rod 16 is hinged to the pivot shaft 151, the other end of the first linkage rod is hinged to the first piston 13, one end of the second linkage rod 20 is hinged to the pivot shaft 151, and the other end of the second linkage rod is hinged to the second piston 19.
Specifically, the electric vehicle battery thermal management system of the embodiment includes: the temperature regulating water tank can be embedded with a battery pack placing groove 4 for placing a battery pack, the battery thermal management system can further comprise a carriage 1, the controller 2 is arranged on the inner wall of the carriage 1, the temperature regulating water tank 3 is arranged in the carriage 1, the battery pack placing groove 4 is uniformly embedded in the temperature regulating water tank 3, water in the temperature regulating water tank 3 surrounds the periphery of the battery pack placing groove 4, the battery pack is accommodated in the battery pack placing groove 4, the temperature of the battery pack is conveniently controlled through the water temperature, the battery pack can work in a more proper temperature, a first temperature sensor 5 is arranged on the inner wall of the temperature regulating water tank 3, the water temperature in the temperature regulating water tank 3 can be monitored in real time, and the temperature regulating device 6 is arranged in the carriage 1; the temperature adjusting device 6 comprises a heating chamber 7, a second temperature sensor 8, a cooling chamber 9, a third temperature sensor 10, a first connecting pipe 11, an electric heating resistance wire 12 serving as a heating device, a first piston 13, a motor 14, a rocker 15, a first connecting rod 16, a second connecting pipe 17, a condenser 18 serving as a cooling device, a second piston 19 and a second connecting rod 20, wherein the heating chamber 7 is arranged in the carriage 1, the second temperature sensor 8 is arranged on the inner wall of the heating chamber 7, the cooling chamber 9 is arranged in the carriage 1, the cooling chamber 9 is communicated with the heating chamber 7, preferably, the heating chamber 7 is vertical to the cooling chamber 9, the third temperature sensor 10 is arranged on the inner wall of the cooling chamber 9, one end of the first connecting pipe 11 is connected with the temperature adjusting water tank 3, the other end of the first connecting pipe 11 is connected with a heating chamber communicating port 71 of the heating chamber 7, the electric heating resistance wire 12 is arranged on two side walls of the heating chamber 7, first piston 13 can movably locate in heating chamber 7, motor 14 is located the intercommunication department of cooling chamber 9 and heating chamber 7, and rocker 15 sets up for mushroom type structure, motor 14 output is located to the tip that is close to the mushroom head of rocker 15, and first interlock pole 16 one end articulates in first piston 13, first interlock pole 16 other end articulates in the one end that motor 14 was kept away from to rocker 15, second connecting pipe 17 one end is connected in temperature regulating water tank 3, and the second connecting pipe 17 other end is connected in the cooling chamber intercommunication mouth 91 of cooling chamber 9, and condenser 18 is located on the wall of cooling chamber 9 both sides, second piston 19 can movably locate in cooling chamber 9, and second trace 20 one end articulates in second piston 19, the second trace 20 other end articulates in the articulated department of rocker 15 with first interlock pole 16.
As shown in fig. 2 and fig. 3, a signal conversion circuit 21 is arranged in the vehicle cabin 1, the first temperature sensor 5, the second temperature sensor 8 and the third temperature sensor 10 are all electrically connected with the signal conversion circuit 21, the signal conversion circuit 21 is electrically connected with the controller 2, and the controller 2 is electrically connected with the motor 14. The first temperature sensor monitors the temperature in the temperature-adjusting water tank 3 and sends the temperature to the signal conversion circuit 21, the second temperature sensor 8 monitors the temperature in the heating chamber 7 and sends the temperature to the signal conversion circuit 21, and the third temperature sensor 10 monitors the temperature in the cooling chamber 9 and sends the temperature to the signal conversion circuit 21. The signal conversion circuit 21 converts the input signal into an output electric signal, and transmits the output electric signal to the controller 2, and the controller 2 controls the entire system.
The temperature control device comprises a first temperature control module 22 and a second temperature control module 23 which are arranged in a compartment 1, wherein a controller 2 is respectively electrically connected with the first temperature control module 22 and the second temperature control module 23, the first temperature control module 22 is electrically connected with a condenser 18, and the second temperature control module 23 is electrically connected with an electric heating resistance wire 12. The controller 2 judges the transmitted temperature signal, when the temperature in the temperature regulating water tank 3 is overhigh, the motor 14 is controlled to operate, meanwhile, the temperature of the condenser 18 during operation is controlled by the first temperature control module 22, and after the third temperature sensor 10 monitors that the temperature in the cooling bin 9 reaches the proper temperature, the signal is transmitted to the controller 2, according to the transmission principle, the controller 2 controls the motor 14, meanwhile, the first temperature control module 22 controls the condenser 18 to stop working, when the temperature in the temperature-regulating water tank 3 is too low, the motor 14 is controlled to operate, meanwhile, the temperature of the electric heating resistance wire 12 during working is controlled by the second temperature control module 23, and after the second temperature sensor 8 monitors that the temperature in the heating bin 7 reaches the proper temperature, the signal and the previous transmission principle are transmitted to the controller 2, the controller 2 controls the motor 14, and the second temperature control module 23 controls the electrothermal filament 12 to stop working.
The cooling bin 9 and the heating bin 7 have the same structure, so that the water mobility in the temperature regulating water tank can be conveniently controlled, and the whole temperature regulating device can keep the full state of water.
The motor 14 is a servo motor, and is convenient for controlling the rotating direction, thereby controlling the flow direction of water in the temperature-adjusting water tank, and being convenient for heating and cooling.
When the temperature-regulating device is used, the temperature-regulating device 6 keeps the water filling state, the first temperature sensor 5 monitors the temperature of the water in the temperature-regulating water tank 3, the temperature-measuring signal is transmitted to the signal conversion circuit 21, the signal conversion circuit 21 converts the input signal into the output electric signal and transmits the output electric signal to the controller 2, the controller 2 judges the transmitted temperature signal, when the temperature in the temperature-regulating water tank 3 is too low, and the temperature needs to be raised, the motor 14 is controlled to operate, the control signal is transmitted simultaneously, the signal is transmitted to the second temperature control module 23, the second temperature control module 23 controls the working of the electric resistance wire 12 and controls the heating temperature of the electric resistance wire 12, the motor 14 drives the rocker 15 to rotate, the rocker 15 respectively drives the first piston 13 and the second piston 19 to move through the first linkage rod 16 and the second linkage rod 20, when the first piston 13 moves towards the rocker 15, the second piston 19 moves towards the direction far away from the rocker 15, the first piston 13 moves so as to pump the water in the temperature-adjusting water tank 3 into the heating chamber 7 through the first connecting pipe 11, the electric heating resistance wire 12 heats the water in the heating chamber 7, and the second temperature sensor 8 detects the water temperature in the heating chamber 7 in real time. After the second temperature sensor 8 monitors that the temperature in the heating bin 7 reaches a proper temperature, signals are transmitted to the controller 2 by adopting the previous transmission principle, the controller 2 controls the motor 14, meanwhile, the second temperature control module 23 controls the electric heating resistance wire 12 to stop working, the motor 14 drives the rocker 15 to rotate to the initial position before last rotation, and the heated water is sent back to the temperature regulating water tank 3. The controller 2 judges the transmitted temperature signal, when the temperature in the temperature-adjusting water tank 3 is too high and the temperature needs to be reduced, the motor 14 is controlled to operate, a control signal is transmitted simultaneously, the signal is transmitted to the first temperature control module 22, the first temperature control module 22 controls the condenser 18 to work and controls the cooling temperature of the condenser, the motor 14 drives the rocker 15 to rotate, the rocker 15 respectively drives the first piston 13 and the second piston 19 to move through the first linkage rod 16 and the second linkage rod 20, when the second piston 19 moves towards the direction of the rocker 15, the first piston 13 moves towards the direction far away from the rocker 15, the second piston 19 moves so as to pump the water in the temperature-adjusting water tank 3 into the cooling bin 9 through the second connecting pipe 17, the condenser 18 cools the water in the cooling bin 9, the third temperature sensor 10 monitors the water temperature in the cooling bin 9 in real time, when the temperature in the cooling bin 9 monitored by the third temperature sensor 10 reaches a proper temperature, the signals are transmitted to the controller 2 according to the previous transmission principle, the controller 2 controls the motor 14, the condenser 18 is controlled to stop working through the first temperature control module 22, the motor 14 drives the rocker 15 to rotate to the initial position before last rotation, and cooled water is sent back to the temperature-adjusting water tank 3.
The embodiment provides an electric automobile thermal management system which optimizes the structure of a power battery pack, thermally manages the battery pack, adds cooling, heating and radiating facilities and can control the temperature environment of battery operation. This embodiment is through setting up heated warehouses and cooling bin, with the liquid in the tempering water tank, extracts the heated warehouses and independently heats or extracts the cooling bin and independently cools off, and after the heating is accomplished or the cooling is accomplished, just with liquid return tempering water tank. Therefore, this application can realize efficient heating or cooling in heated warehouses or cooling warehouse, then will pass through the liquid after temperature regulation and send back the temperature regulation water tank, improve the temperature regulation efficiency of the group battery in the temperature regulation water tank. Meanwhile, the motor and the rocker mechanism are combined in the embodiment, the first piston and the second piston are controlled simultaneously, the rocker is controlled to be in different positions, the first piston moves far away from or close to the heating bin communicating opening, or the second piston moves far away from or close to the cooling bin communicating opening.
Fig. 4 is a flowchart illustrating a thermal management control method of the battery thermal management system of the electric vehicle according to an embodiment of the present application, including:
step S401, acquiring the water tank temperature of the temperature-adjusting water tank 3;
step S402, if the water tank temperature reaches the preset temperature condition, extracting liquid from the temperature-adjusting water tank 3 to a corresponding temperature-adjusting bin for temperature adjustment according to the water tank temperature, and after the temperature adjustment is finished, returning the liquid in the temperature-adjusting bin to the temperature-adjusting water tank 3.
Specifically, the present invention can be applied to an Electronic Control Unit (ECU) of a vehicle.
The controller 2 executes step S401 to acquire the tank temperature of the temperature-adjusted water tank 3. And then step S402, extracting liquid from the temperature-regulating water tank 3 to a corresponding temperature-regulating bin according to the temperature of the water tank for temperature regulation, and after the temperature regulation is finished, sending the liquid in the temperature-regulating bin back to the temperature-regulating water tank 3.
In one embodiment, if the water tank temperature reaches a preset temperature condition, according to the water tank temperature, extracting liquid from the temperature-adjusting water tank 3 to a corresponding temperature-adjusting bin for temperature adjustment, and after the temperature adjustment is completed, returning the liquid in the temperature-adjusting bin to the temperature-adjusting water tank 3 specifically includes:
if the temperature of the water tank is lower than a preset first temperature threshold value, extracting liquid from the temperature-adjusting water tank 3 to the heating bin 7, starting a heating device arranged on the heating bin 7 for heating, and after heating is finished, closing the heating device, and returning the liquid in the heating bin 7 to the temperature-adjusting water tank 3;
if the water tank temperature is higher than a preset second temperature threshold value, liquid is extracted from the temperature-adjusting water tank 3 to the cooling bin 9, a cooling device arranged on the cooling bin 9 is started for cooling, after cooling is finished, the cooling device is closed, and the liquid in the cooling bin 9 is sent back to the temperature-adjusting water tank 3.
Specifically, when the tank temperature is low, the liquid is drawn from the temperature-controlled water tank 3 into the heating chamber 7 to be heated, and after the heating is completed, the heated liquid is returned from the heating chamber 7 to the temperature-controlled water tank 3. When the temperature of the water tank is high, the liquid is pumped from the temperature-adjusting water tank 3 to the cooling bin 9 for cooling, and after cooling is finished, the cooled liquid is returned to the temperature-adjusting water tank 3 from the cooling bin 9. The first temperature threshold and the second temperature threshold may be different, and the first temperature threshold is less than or equal to the second temperature threshold.
The embodiment selects the heating bin or the cooling bin respectively for temperature adjustment based on different temperatures of the water tank.
In one embodiment:
if the water tank temperature is lower than a preset first temperature threshold value, the liquid is extracted from the temperature-adjusting water tank 3 to the heating bin 7 for heating, and after the heating is finished, the liquid in the heating bin 7 is returned to the temperature-adjusting water tank 3, and the method comprises the following steps:
if the temperature of the water tank is lower than a preset first temperature threshold value, controlling a piston driving device to drive a first piston 13 to move towards a direction away from the heating bin communication port 71, and extracting liquid from the temperature-adjusting water tank 3 to the heating bin 7;
controlling a heating device of the heating bin 7 to heat, and after heating is finished, controlling a piston driving device to drive a first piston 13 to move towards the direction close to the heating bin communication port 71, so as to return the liquid in the heating bin 7 to the temperature-adjusting water tank 3;
if the water tank temperature is higher than a preset second temperature threshold, extracting liquid from the temperature-adjusting water tank 3 to the cooling bin 9 for cooling, and after the cooling is finished, returning the liquid in the cooling bin 9 to the temperature-adjusting water tank 3, specifically comprising:
if the temperature of the water tank is higher than a preset second temperature threshold value, controlling a piston driving device to drive a second piston 19 to move towards a direction far away from the cooling bin communication port 91, and extracting liquid from the temperature-regulating water tank 3 to the cooling bin 9;
and controlling a cooling device of the cooling bin 9 to cool, and after cooling is finished, controlling a piston driving device to drive a second piston 19 to move towards the direction close to the cooling bin communication port 91, so as to return the liquid in the cooling bin 9 to the temperature-adjusting water tank 3.
In one embodiment:
the heating is completed as follows: after waiting for the preset heating time, judging that the heating is finished;
the cooling is finished as follows: and after waiting for the preset cooling time, judging that the cooling is finished.
In one embodiment:
the heating is completed as follows: the temperature of the heating chamber reaches a preset heating temperature, wherein the temperature of the heating chamber can be obtained by a second temperature sensor 8 arranged on the heating chamber 7;
the cooling is finished as follows: the temperature of the cooling compartment reaches a preset cooling temperature, wherein the temperature of the cooling compartment can be obtained by a third temperature sensor 10 arranged at the cooling compartment 9.
Fig. 5 is a flow chart illustrating a management main state machine of a battery thermal management system of an electric vehicle according to an embodiment of the present application, including:
state 51, run: if temperature processing is turned on, then state 52 is entered;
state 52, calculation phase: calculating according to the temperature of the water tank, entering a state 53 if the temperature of the water tank is lower than a first temperature threshold value after the calculation is finished, entering a state 54 if the temperature of the water tank is higher than a second temperature threshold value, and returning to the state 51 if the temperature processing is closed;
state 53, temperature rise stage: pumping liquid from the temperature-regulating water tank 3 to the heating chamber 7, and entering a state 55 after the pumping is finished;
state 54, cooling stage: pumping liquid from the temperature-regulating water tank 3 to the cooling bin 9, and entering a state 57 after the pumping is finished;
state 55, heat treatment: heating the liquid in the heating bin 7, and entering a state 56 after the heating is finished;
state 56, heat exchange: the liquid in the heating bin 7 is sent back to the temperature-regulating water tank 3 and returns to the state 51;
state 57, cold treatment: cooling the liquid in the cooling bin 9, and entering a state 58 after cooling is finished;
state 58, cold exchange: the liquid in the cooling tank 9 is returned to the temperature-controlled water tank 3 and returned to the state 51.
This application will adjust the temperature the storehouse through setting up, will adjust the temperature the liquid in the water tank, extract and carry out temperature regulation to the storehouse that adjusts the temperature, accomplish the back at temperature regulation, just with liquid feed back temperature adjusting water tank. Consequently, this application can realize efficient temperature regulation in the storehouse that adjusts the temperature, then will pass through the liquid after temperature regulation and send back the temperature regulation water tank, improve the temperature regulation efficiency of the group battery in the temperature regulation water tank.
Fig. 6 is a schematic diagram of a hardware structure of an electronic device according to the present application, including:
at least one processor 601; and the number of the first and second groups,
a memory 602 communicatively coupled to at least one of the processors 601; wherein the content of the first and second substances,
the memory 602 stores instructions executable by at least one of the processors to enable the at least one of the processors to perform the thermal management control method of the electric vehicle battery thermal management system as described above.
In fig. 6, one processor 601 is taken as an example.
The electronic device may further include: an input device 603 and a display device 604.
The processor 601, the memory 602, the input device 603, and the display device 604 may be connected by a bus or other means, and are illustrated as being connected by a bus.
The memory 602, which is a non-volatile computer-readable storage medium, may be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as program instructions/modules corresponding to the thermal management control method of the thermal management system of the electric vehicle battery in the embodiment of the present application, for example, the method flow shown in fig. 4. The processor 601 executes various functional applications and data processing by running nonvolatile software programs, instructions and modules stored in the memory 602, so as to implement the thermal management control method of the electric vehicle battery thermal management system in the above embodiment.
The memory 602 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of a thermal management control method of the electric vehicle battery thermal management system, and the like. Further, the memory 602 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, the memory 602 may optionally include memory located remotely from the processor 601, and these remote memories may be connected over a network to a device that performs the thermal management control method of the electric vehicle battery thermal management system. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 603 may receive input user clicks and generate signal inputs related to user settings and functional control of the thermal management control method of the electric vehicle battery thermal management system. The display device 604 may include a display screen or the like.
When the one or more modules are stored in the memory 602 and executed by the one or more processors 601, the method for controlling thermal management of the battery thermal management system of the electric vehicle in any of the above-described method embodiments is performed.
This application will adjust the temperature the storehouse through setting up, will adjust the temperature the liquid in the water tank, extract and carry out temperature regulation to the storehouse that adjusts the temperature, accomplish the back at temperature regulation, just with liquid feed back temperature adjusting water tank. Consequently, this application can realize efficient temperature regulation in the storehouse that adjusts the temperature, then will pass through the liquid after temperature regulation and send back the temperature regulation water tank, improve the temperature regulation efficiency of the group battery in the temperature regulation water tank.
An embodiment of the present application provides a storage medium, which stores computer instructions, and when a computer executes the computer instructions, the storage medium is used to execute all the steps of the thermal management control method of the electric vehicle battery thermal management system.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An electric vehicle battery thermal management system, comprising: the battery pack temperature adjusting device comprises a controller (2), a temperature adjusting device (6) and a temperature adjusting water tank (3) for containing a battery pack, wherein the temperature adjusting device (6) comprises a temperature adjusting bin and a liquid pumping device;
the temperature adjusting bin is communicated with the temperature adjusting water tank (3), and is provided with a temperature adjusting device which is in communication connection with the controller (2);
the controller (2) is in communication connection with the liquid pumping device and outputs signals to the liquid pumping device according to the water tank temperature of the temperature-adjusting water tank (3);
the liquid pumping device pumps liquid from the temperature regulating water tank (3) to the temperature regulating bin for temperature regulation according to a signal of the controller (2); or
And after the controller (2) judges that the temperature of the liquid in the temperature adjusting bin is adjusted, the liquid pumping device returns the liquid from the temperature adjusting bin to the temperature adjusting water tank (3) according to the signal of the controller (2).
2. The electric vehicle battery thermal management system according to claim 1, characterized in that the temperature regulation device comprises a heating device and/or a cooling device, and the temperature regulation bin comprises a heating bin (7) provided with a heating device in communication connection with the controller (2) and/or a cooling bin (9) provided with a cooling device in communication connection with the controller (2);
the liquid pumping device pumps liquid from the temperature-regulating water tank (3) to the heating chamber (7) or returns liquid from the heating chamber (7) to the temperature-regulating water tank (3) according to a signal of the controller (2); or
The liquid pumping device pumps liquid from the temperature-regulating water tank (3) to the cooling bin (9) or returns liquid from the cooling bin (9) to the temperature-regulating water tank (3) according to a signal of the controller (2).
3. The electric vehicle battery thermal management system of claim 2, wherein the fluid pumping device comprises: a piston drive, a first piston (13) and a second piston (19), wherein:
the heating bin (7) is communicated with the temperature-adjusting water tank (3) through a heating bin communication port (71), and the first piston (13) is movably arranged in the heating bin (7);
the cooling bin (9) is communicated with the temperature-adjusting water tank (3) through a cooling bin communication port (91), and the second piston (19) is movably arranged in the cooling bin (9);
the controller (2) is in communication connection with the piston driving device, signals are output to the piston driving device according to the water tank temperature of the temperature-adjusting water tank (3), the piston driving device drives the first piston (13) to be close to or far away from the heating tank communication port (71) in the heating tank (7) according to the signals of the controller (2), or the piston driving device drives the second piston (19) to be close to or far away from the cooling tank communication port (91) in the cooling tank (9) according to the signals of the controller (2).
4. The electric vehicle battery thermal management system of claim 3, wherein the piston drive comprises: the device comprises a motor (14) and a rocker mechanism driven by the motor (14), wherein one end of the rocker mechanism is connected with the first piston (13), and the other end of the rocker mechanism is connected with the second piston (19).
5. The electric vehicle battery thermal management system according to claim 4, wherein the rocker mechanism comprises a rocker (15), a first linkage rod (16) and a second linkage rod (20), the rocker (15) is connected with a rotating shaft of the motor (14), a pivot shaft (151) is arranged on the rocker (15), one end of the first linkage rod (16) is hinged to the pivot shaft (151), the other end of the first linkage rod is hinged to the first piston (13), one end of the second linkage rod (20) is hinged to the pivot shaft (151), and the other end of the second linkage rod is hinged to the second piston (19).
6. The thermal management control method of the electric vehicle battery thermal management system according to any one of claims 1 to 5, characterized by comprising the following steps:
acquiring the water tank temperature of the temperature-adjusting water tank (3);
if the water tank temperature reaches the preset temperature condition, extracting liquid from the temperature-adjusting water tank (3) to a corresponding temperature-adjusting bin for temperature adjustment according to the water tank temperature, and after the temperature adjustment is finished, sending the liquid in the temperature-adjusting bin back to the temperature-adjusting water tank (3).
7. The thermal management control method of the electric vehicle battery thermal management system according to claim 6, wherein if the water tank temperature reaches a preset temperature condition, according to the water tank temperature, liquid is extracted from the temperature-adjusting water tank (3) to a corresponding temperature-adjusting bin for temperature adjustment, and after the temperature adjustment is completed, the liquid in the temperature-adjusting bin is sent back to the temperature-adjusting water tank (3), and specifically includes:
if the temperature of the water tank is lower than a preset first temperature threshold value, extracting liquid from the temperature-adjusting water tank (3) to the heating bin (7), starting a heating device arranged on the heating bin (7) for heating, closing the heating device after heating is finished, and sending the liquid in the heating bin (7) back to the temperature-adjusting water tank (3);
if the water tank temperature is higher than a preset second temperature threshold value, liquid is extracted from the temperature-adjusting water tank (3) to the cooling bin (9), a cooling device arranged on the cooling bin (9) is started to cool, after cooling is finished, the cooling device is closed, and the liquid in the cooling bin (9) is sent back to the temperature-adjusting water tank (3).
8. The thermal management control method of the electric vehicle battery thermal management system according to claim 7, characterized in that:
the heating is completed as follows: the temperature of the heating bin (7) reaches a preset heating temperature;
the cooling is finished as follows: the temperature of the cooling bin (9) reaches a preset cooling temperature.
9. An electronic device, comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to at least one of the processors; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of thermal management control of an electric vehicle battery thermal management system according to any one of claims 6-8.
10. A storage medium storing computer instructions for performing all the steps of the thermal management control method of the electric vehicle battery thermal management system according to any one of claims 6 to 8 when the computer instructions are executed by a computer.
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| CN202111033102.XA CN113764773A (en) | 2021-09-03 | 2021-09-03 | Electric vehicle battery thermal management system, method, electronic device and storage medium |
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| CN202111033102.XA CN113764773A (en) | 2021-09-03 | 2021-09-03 | Electric vehicle battery thermal management system, method, electronic device and storage medium |
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