CN111186290A - Battery cooling system, electric vehicle and control method - Google Patents
Battery cooling system, electric vehicle and control method Download PDFInfo
- Publication number
- CN111186290A CN111186290A CN202010140613.0A CN202010140613A CN111186290A CN 111186290 A CN111186290 A CN 111186290A CN 202010140613 A CN202010140613 A CN 202010140613A CN 111186290 A CN111186290 A CN 111186290A
- Authority
- CN
- China
- Prior art keywords
- cooling
- battery
- branch
- temperature
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 524
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 239000000110 cooling liquid Substances 0.000 claims description 17
- 238000007872 degassing Methods 0.000 claims description 14
- 239000002826 coolant Substances 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 description 13
- 238000004378 air conditioning Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 230000002000 scavenging effect Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 238000002637 fluid replacement therapy Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid 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
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—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
- H01M10/63—Control systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Secondary Cells (AREA)
Abstract
The embodiment of the invention provides a battery cooling system, an electric vehicle and a control method, and relates to the technical field of electric vehicles. The battery cooling system provided by the embodiment of the invention comprises a cooling main circuit, a first cooling branch circuit, a second cooling branch circuit, a first cooling pump and a second cooling pump. The first cooling branch and the second cooling branch are arranged in parallel and are connected with the cooling main circuit in series to form a cooling loop. The first cooling pump is arranged on the first cooling branch, so that the first cooling branch is supplied with liquid through the first cooling pump to cool the first battery. The second cooling pump is arranged on the second cooling branch, so that the second cooling branch is supplied with liquid through the second cooling pump to cool the second battery. Because through setting up the cooling pump on the cooling branch road, realize the cooling to corresponding battery, consequently the cooling pump only need satisfy the confession liquid demand of a cooling branch road can to the cooling pump that uses less flow, lift can satisfy the demand, helps reduce cost.
Description
Technical Field
The invention relates to the technical field of electric vehicles, in particular to a battery cooling system, an electric vehicle and a control method.
Background
An electric vehicle is a vehicle device that converts electric energy into kinetic energy to realize driving. The battery is the essential element for the electric motor car provides electric energy, and commercial car and special-purpose vehicle are whole owing to continuation of the journey mileage and other power consumption demands, and whole car carries the electric quantity more, has arranged a plurality of battery packages usually to whole car, guarantees the normal work of battery through setting up cooling system simultaneously.
Because the number of batteries is large, and the arrangement of each battery pack of the whole vehicle has large thermal boundary difference, in order to ensure the cooling effect, a plurality of branches are often adopted to cool different batteries. The existing battery cooling system supplies liquid by arranging a water pump on a cooling main path, and simultaneously realizes the control of the flow of branch cooling liquid by arranging a valve on each branch, so that the water pump in the battery cooling system needs to realize large flow and high lift, the requirement on the water pump is higher, and the cost of the battery cooling system is higher.
Disclosure of Invention
Objects of the invention include, for example, providing a battery cooling system that can use a smaller flow, smaller head pump to supply liquid, thereby helping to reduce the cost of the cooling system.
The invention also aims to provide the electric vehicle, which can supply liquid by adopting a water pump with small flow and small lift and has low cost.
The object of the present invention is also to provide a control method for controlling the above-mentioned battery cooling system.
Embodiments of the invention may be implemented as follows:
the embodiment of the invention provides a battery cooling system, which comprises a cooling main circuit, a first cooling branch circuit, a second cooling branch circuit, a first cooling pump and a second cooling pump, wherein the first cooling branch circuit and the second cooling branch circuit are arranged in parallel and are simultaneously connected with the cooling main circuit in series to form a cooling loop;
the cooling part of the first cooling branch cools the first battery; the cooling part of the second cooling branch cools the second battery;
the first cooling pump is arranged on the first cooling branch and supplies liquid to the cooling part of the first cooling branch; the second cooling pump is arranged on the second cooling branch and supplies liquid to the cooling part of the second cooling branch.
Optionally, the first cooling branch has a first liquid inlet end and a first liquid return end which are opposite to each other, and the first liquid inlet end and the first liquid return end are connected to two ends of the cooling main circuit at the same time to form a cooling circuit; the first cooling pump is positioned at the first liquid inlet end; and/or the presence of a gas in the gas,
the second cooling branch is provided with a second liquid inlet end and a second liquid return end which are opposite, and the second liquid inlet end and the second liquid return end are simultaneously connected with two ends of the cooling main circuit to form a cooling circuit; the second cooling pump is located at the second liquid inlet end.
Optionally, the first cooling branch has a first degassing port, and the first degassing port is located at the first liquid return end; and/or the presence of a gas in the gas,
the second cooling branch is provided with a second degassing port, and the second degassing port is positioned at the second liquid return end.
Optionally, the battery cooling system further includes a water replenishing tank, and the water replenishing tank is used for replenishing cooling liquid to the cooling loop; the first degassing port and/or the second degassing port are/is communicated with the water replenishing tank; and/or the presence of a gas in the gas,
and a water replenishing port is arranged on the cooling main road and is positioned between the first cooling branch and the second cooling branch.
Optionally, the number of the cooling portions in the first cooling branch is multiple, and the multiple cooling portions in the first cooling branch are arranged in one-to-one correspondence with the multiple first batteries; and/or the presence of a gas in the gas,
the number of the cooling parts in the second cooling branch is multiple, and the multiple cooling parts in the second cooling branch are arranged in one-to-one correspondence with the multiple second batteries.
Optionally, the battery cooling system further includes a heat exchanger disposed on the cooling main, and the heat exchanger is configured to cool the cooling liquid flowing through the heat exchanger.
Optionally, the battery cooling system further includes a first temperature sensor and a second temperature sensor; the first temperature sensor is arranged on the first cooling branch, and the first temperature sensor is positioned between a liquid outlet of the heat exchanger and a cooling part of the first cooling branch; the second temperature sensor is arranged on the second cooling branch, and the second temperature sensor is positioned between the liquid outlet of the heat exchanger and the cooling part of the second cooling branch; and/or the presence of a gas in the gas,
the battery cooling system further includes a third temperature sensor and a fourth temperature sensor; the third temperature sensor is arranged on the first cooling branch and is positioned between the liquid inlet of the heat exchanger and the cooling part of the first cooling branch; the fourth temperature sensor is arranged on the second cooling branch, and is positioned between the liquid inlet of the heat exchanger and the cooling part of the second cooling branch.
The embodiment of the invention also provides an electric vehicle which comprises any one of the battery cooling systems.
The embodiment of the invention also provides a control method. The control method is used for controlling the battery cooling system. The control method comprises the following steps:
acquiring a first temperature signal representing the temperature of the first battery;
acquiring a second temperature signal representing the temperature of the second battery;
and respectively controlling a first cooling pump and a second cooling pump according to the first temperature signal and the second temperature signal.
Optionally, the step of controlling the first cooling pump and the second cooling pump according to the first temperature signal and the second temperature signal respectively comprises:
when the temperature of the first battery reaches a preset threshold value and the temperature of the second battery is smaller than the preset threshold value, controlling the first cooling pump to operate until the temperature of the first battery is reduced to the preset temperature;
when the temperature of the first battery and the temperature of the second battery reach preset threshold values and the temperature difference is within a preset range, controlling the first cooling pump and the second cooling pump to synchronously operate until the temperature of the first battery and the temperature of the second battery are both reduced to preset temperatures;
when the temperature of the first battery and the temperature of the second battery both reach the preset threshold value and the temperature difference exceeds a preset range, respectively controlling the first cooling pump and the second cooling pump to operate until the temperature of the first battery and the temperature of the second battery are reduced to the preset temperature and the temperature difference is within the preset range;
when the temperature of the first battery and the temperature of the second battery do not reach the preset threshold value, and the temperature difference exceeds the preset range, the battery cooling system is controlled to self-circulate.
The battery cooling system, the electric vehicle and the control method of the embodiment of the invention have the beneficial effects of, for example:
an embodiment of the present invention provides a battery cooling system, which includes a cooling main, a first cooling branch, a second cooling branch, a first cooling pump, and a second cooling pump. The first cooling branch and the second cooling branch are arranged in parallel and are connected with the cooling main circuit in series to form a cooling loop. The cooling part on the first cooling branch is used for cooling the first battery, and the cooling part on the second cooling branch is used for cooling the second battery. The first cooling pump is arranged on the first cooling branch, so that the first cooling branch is supplied with liquid through the first cooling pump to cool the first battery. The second cooling pump is arranged on the second cooling branch, so that the second cooling branch is supplied with liquid through the second cooling pump to cool the second battery. Because through setting up the cooling pump on the cooling branch road, realize the cooling to corresponding battery, consequently the cooling pump only need satisfy the confession liquid demand of a cooling branch road can to the cooling pump that uses less flow, lift can satisfy the demand, helps reduce cost. And the flow control to corresponding cooling branch can be realized through the rotational speed of control cooling pump, need not to set up the governing valve on the cooling branch and can satisfy different cooling demands, adjusts the flow through the governing valve relatively moreover, and the cooling pump is the initiative regulation to the regulation of flow to can reduce the resistance to the fluid, the system energy consumption is lower.
The embodiment of the invention also provides an electric vehicle which comprises the battery cooling system, so that the electric vehicle also has the beneficial effects that the cooling pump with smaller flow and lift can meet the requirement, the cost is low, meanwhile, a regulating valve is not required to be arranged, the flow regulation is realized through the active regulation of the cooling pump, the resistance to fluid can be reduced, and the energy consumption of the system is lower.
The embodiment of the invention also provides a control method, which is used for controlling the battery cooling system, so that the control method has the advantages that the cooling pump with smaller flow and lift can meet the requirement, the cost is low, meanwhile, no regulating valve is needed, the flow regulation is realized through the active regulation of the cooling pump, the resistance to the fluid can be reduced, and the energy consumption of the system is lower.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an electric vehicle according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a battery cooling system in an electric vehicle according to an embodiment of the present invention;
fig. 3 is a block diagram of steps of a control method according to an embodiment of the present invention.
Icon: 10-an electric vehicle; 110-a first battery; 120-a second battery; 130-an air conditioning system; 131-a controller; 140-a battery management system; 200-a battery cooling system; 210-cooling main; 211-a heat exchanger; 212-water replenishing port; 220-first cooling branch; 221-a first branch tube; 222-a second branch tube; 223-a first cooling section; 224-a second cooling section; 225-a first temperature sensor; 226-a third temperature sensor; 227-a first degassing port; 230-a second cooling branch; 231-a third leg; 232-fourth branch pipe; 233-a third cooling section; 234-a fourth cooling section; 235-a second temperature sensor; 236-a fourth temperature sensor; 237-a second deaeration port; 241-a first cooling pump; 242-a second cooling pump; 251-a water replenishing pipe; 252-water supplement tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Fig. 1 is a schematic structural diagram of an electric vehicle 10 provided in this embodiment, and fig. 2 is a schematic structural diagram of a battery cooling system 200 in the electric vehicle 10 provided in this embodiment. Referring to fig. 1 and fig. 2 in combination, the present embodiment provides a battery cooling system 200, and accordingly, the present embodiment provides an electric vehicle 10.
The electric vehicle 10 includes a battery cooling system 200, and also includes a battery and battery management system 140 (BMS). Specifically, the batteries include a first battery 110 and a second battery 120, the battery management system 140 monitors the first battery 110 and the second battery 120, and the battery management system 140 is electrically connected to the battery cooling system 200, so that the battery management system 140 controls the battery cooling system 200 to cool the first battery 110 and/or the second battery 120 according to the states of the first battery 110 and the second battery 120.
The battery cooling system 200 includes a cooling manifold 210, a first cooling branch 220, a second cooling branch 230, a first cooling pump 241, and a second cooling pump 242. The first cooling branch 220 and the second cooling branch 230 are disposed in parallel and are connected in series with the cooling manifold 210 to form a cooling circuit. The cooling portion of the first cooling branch 220 is used for cooling the first battery 110, and the cooling portion of the second cooling branch 230 is used for cooling the second battery 120. The first cooling pump 241 is provided on the first cooling branch 220 so that the first cooling branch 220 is supplied with liquid by the first cooling pump 241 to cool the first battery 110. The second cooling pump 242 is disposed on the second cooling branch 230 so that the second cooling branch 230 is supplied with liquid by the second cooling pump 242 to cool the second battery 120. Because through setting up the cooling pump on the cooling branch road, realize the cooling to corresponding battery, consequently the cooling pump only need satisfy the confession liquid demand of a cooling branch road can to the cooling pump that uses less flow, lift can satisfy the demand, helps reduce cost. And the flow control to corresponding cooling branch can be realized through the rotational speed of control cooling pump, need not to set up the governing valve on the cooling branch and can satisfy different cooling demands, adjusts the flow through the governing valve relatively moreover, and the cooling pump is the initiative regulation to the regulation of flow to can reduce the resistance to the fluid, the system energy consumption is lower.
The electric vehicle 10 provided in the present embodiment will be further explained below:
referring to fig. 1 and fig. 2, in the present embodiment, the electric vehicle 10 includes a battery cooling system 200, a battery, and a battery management system 140. The batteries include a first battery 110 and a second battery 120. The battery cooling system 200 includes a cooling manifold 210, a first cooling branch 220, and a second cooling branch 230. The first cooling branch 220 and the second cooling zone branch are arranged in parallel, the first cooling branch 220 and the cooling main 210 are connected in series to form a cooling circuit, the cooling circuit is a first cooling circuit, the second cooling branch 230 and the cooling main 210 are connected in series to form a cooling circuit, the cooling circuit is a second cooling circuit, namely, the cooling liquid in the cooling main 210 flows into the first cooling branch 220 and the second cooling branch 230 in two paths, flows out of the first cooling branch 220 and the second cooling branch 230, and then is collected in the cooling main 210. It should be noted that, in the present embodiment, the number of the cooling branches in the battery cooling system 200 is two, and it should be understood that, in other embodiments, the number of the cooling branches may also be specifically set according to the number of the batteries, for example, the number of the cooling branches is set to three or four, and the like.
It should be noted that, in this embodiment, the cooling liquid is filled in the battery cooling system 200, so as to cool the battery through the cooling liquid, so as to meet the use requirement of the battery, and it can be understood that, in other embodiments, the liquid heat requirement of the battery can also be met by heating water in the battery cooling system 200 according to the requirement.
The battery cooling system 200 further includes a first cooling pump 241 and a second cooling pump 242. The first cooling pump 241 is provided on the first cooling branch 220 to power the flow of the cooling liquid in the first cooling circuit to feed the cooling portion of the first cooling branch 220 to achieve cooling of the battery through heat exchange with the battery through the cooling portion. A second cooling pump 242 is provided on the second cooling branch 230 to power the flow of the cooling liquid in the second cooling circuit to feed the cooling portion of the second cooling branch 230 to effect cooling of the battery by heat exchange with the battery through the cooling portion. Optionally, the first cooling pump 241 and the second cooling pump 242 are both pwm (pulse Width modulation) adjustable water pumps.
Specifically, the cooling portion of the first cooling branch 220 of the battery cooling system 200 is used for cooling the first battery 110, and the cooling portion of the second cooling branch 230 of the battery cooling system 200 is used for cooling the second battery 120. The first cooling pump 241 and the second cooling pump 242 of the battery cooling system 200 are electrically connected to the battery management system 140, and the battery management system 140 can monitor the temperatures of the first battery 110 and the second battery 120, so as to control the operation of the first cooling pump 241 and the second cooling pump 242 according to the temperatures of the first battery 110 and the second battery 120, so as to adjust the temperatures of the first battery 110 and the second battery 120 according to the requirements.
Generally, the cooling portion of the first cooling branch 220 for cooling the first battery 110 may be a block structure attached to the first battery 110, for example, a cold plate is used as the cooling portion, or a serpentine structure formed by bending a pipe multiple times. Similarly, the cooling portion of the second cooling branch 230 for cooling the second battery 120 may be a block structure attached to the second battery 120, for example, a cold plate is used as the cooling portion, or a structure formed by bending a pipe for multiple times.
Further, the number of the cooling portions on the first cooling branch 220 is plural, the number of the first batteries 110 is plural, and the plurality of cooling portions and the plurality of first batteries 110 are arranged in one-to-one correspondence. Specifically, the number of the cooling portions on the first cooling branch 220 is two, and the two cooling portions are a first cooling portion 223 and a second cooling portion 224, respectively. The number of the first batteries 110 is two, and the first cooling part 223 and the second cooling part 224 are provided corresponding to the two first batteries 110, respectively, so that the two first batteries 110 are cooled by the first cooling part 223 and the second cooling part 224, respectively.
The number of the cooling portions on the second cooling branch 230 is plural, the number of the second batteries 120 is plural, and the plurality of cooling portions and the plurality of second batteries 120 are arranged in one-to-one correspondence. Specifically, the number of the cooling portions on the second cooling branch 230 is two, and the two cooling portions are the third cooling portion 233 and the fourth cooling portion 234, respectively. The number of the second batteries 120 is two, and the third cooling part 233 and the fourth cooling part are provided corresponding to the two second batteries 120, respectively, so that the two second batteries 120 are cooled by the third cooling part 233 and the fourth cooling part 234, respectively.
It should be noted that, in the present embodiment, the number of the first battery 110 and the number of the second battery 120 are two, and accordingly, the number of the cooling portions on the first cooling branch 220 and the number of the cooling portions on the second cooling branch 230 are correspondingly set to two, respectively. Optionally, in order to ensure that each cooling branch can cool the corresponding battery well, the number of the cooling portions on the cooling branch is less than or equal to three, that is, each cooling branch cools a maximum of three batteries.
With continued reference to fig. 1 and fig. 2, in the present embodiment, the first cooling branch 220 has a first liquid inlet end and a first liquid return end, which are opposite to each other, and the first liquid inlet end and the first liquid return end are simultaneously connected to two ends of the cooling main 210 to form a first cooling loop. Specifically, the first cooling branch 220 includes a first branch 221 and a second branch 222, two ends of the first branch 221 are respectively connected to the cooling main 210 and the first cooling portion 223, two ends of the second branch 222 are respectively connected to the cooling main 210 and the second cooling portion 224, when the first battery 110 needs to be cooled, the coolant enters the first branch 221 from the cooling main 210 under the pumping action of the first cooling pump 241, and flows through the first cooling portion 223 and the second cooling portion 224 to cool the two first batteries 110, and then flows back to the cooling main 210 through the second branch 222, that is, the first liquid inlet end of the first cooling branch 220 is the end of the first branch 221 away from the first cooling portion 223, and the first liquid return end of the first cooling branch 220 is the end of the second branch 222 away from the second cooling portion 224. The first cooling pump 241 is provided at the first inlet end, that is, the first cooling pump 241 is provided on the first branch pipe 221.
The second cooling branch 230 has a second liquid inlet end and a second liquid return end opposite to each other, and the second liquid inlet end and the second liquid return end are connected to both ends of the cooling main 210 to form a second cooling loop. Specifically, the second cooling branch 230 includes a third branch 231 and a fourth branch 232, two ends of the third branch 231 are respectively connected to the cooling main 210 and the third cooling portion 233, two ends of the fourth branch 232 are respectively connected to the cooling main 210 and the fourth cooling portion 234, when the second battery 120 needs to be cooled, the cooling liquid enters the third branch 231 from the cooling main 210 under the pumping action of the second cooling pump 242, and flows through the third cooling portion 233 and the fourth cooling portion 234 to cool the two second batteries 120, and then flows back to the cooling main 210 through the fourth branch 232, that is, the second liquid inlet end of the second cooling branch 230 is the end of the third branch 231 away from the third cooling portion 233, and the second liquid return end of the second cooling branch 230 is the end of the fourth branch 232 away from the fourth cooling portion 234. The second cooling pump 242 is provided at the second inlet end, that is, the second cooling pump 242 is provided on the third branch pipe 231.
Further, the cooling main line 210 is provided with a water replenishment port 212, so that the battery cooling system 200 can be replenished with the coolant through the water replenishment port 212. The water replenishing port 212 is arranged between the first cooling branch 220 and the second cooling branch 230, specifically, the connection positions of the first liquid inlet end and the second liquid inlet end with the cooling main path 210 are arranged at intervals, and the water replenishing port 212 is arranged at the position of the cooling main path 210 between the first liquid inlet end and the second liquid inlet end, so that water replenishing of the two cooling branches can be realized through one water replenishing port 212, and the water replenishing is rapid.
The battery cooling system 200 also includes a fluid replacement structure. Specifically, the liquid replenishing structure includes a water replenishing tank 252 and a water replenishing pipe 251, and two ends of the water replenishing pipe 251 are respectively connected with the water replenishing tank 252 and the water replenishing port 212, so that the cooling main line 210 is communicated with the water replenishing tank 252 through the water replenishing pipe 251. Optionally, the make-up water tank 252 is an expansion tank.
In the present embodiment, the first cooling branch 220 has a first deaeration opening 227, and the first deaeration opening 227 is provided at the first liquid return end, that is, the first deaeration opening 227 is opened in the second branch pipe 222, and in order to ensure the deaeration effect, when the battery cooling system 200 is disposed on the vehicle body (not shown) of the electric vehicle 10, the first deaeration opening 227 is located at the highest point of the second branch pipe 222. The second cooling branch 230 has a second scavenging port 237, and the second scavenging port 237 is provided at the second liquid return end, that is, the second scavenging port 237 is opened in the fourth branch pipe 232, while in order to ensure the scavenging effect, when the battery cooling system 200 is disposed on the body of the electric vehicle 10, the second scavenging port 237 is located at the highest point of the fourth branch pipe 232. Further, the first degassing port 227 and the second degassing port 237 are respectively communicated with the makeup water tank 252, thereby ensuring the pressure balance of the system.
In this embodiment, the battery cooling system 200 further includes a heat exchanger 211 disposed on the cooling main 210, and when the cooling liquid in the cooling main 210 flows through the heat exchanger 211, heat exchange is performed by the heat exchanger 211, so as to cool the cooling liquid, so as to ensure the cooling effect on the battery when the cooling liquid flows through the cooling portion. Optionally, the heat exchanger 211 is a plate heat exchanger 211. By integrating the heat exchanger 211 with the air conditioning system 130 of the electric vehicle 10, cooling of the cooling fluid is achieved by the cooling effect of the air conditioning system 130. It is understood that in other embodiments, the structure of the heat exchanger 211 may be selected according to the requirement, for example, an independent water chiller is provided.
Further, the battery cooling system 200 further includes a first temperature sensor 225 and a second temperature sensor 235. The first temperature sensor 225 is disposed on the first cooling branch 220 and located between the liquid outlet of the heat exchanger 211 and the first cooling portion 223, that is, the first temperature sensor 225 is disposed on the first branch pipe 221, and the temperature of the cooling liquid entering the first cooling portion 223 can be detected by the first temperature sensor 225. Further, the first temperature sensor 225 is located between the first cooling pump 241 and the first cooling portion 223. The second temperature sensor 235 is disposed on the second cooling branch 230 and located between the liquid outlet of the heat exchanger 211 and the third cooling portion 233, that is, the second temperature sensor 235 is located on the third branch pipe 231, and the temperature of the coolant entering the third cooling portion 233 can be detected by the first temperature sensor 225. Further, a second temperature sensor 235 is located between the second cooling pump 242 and the third cooling portion 233. It can be understood that, in other embodiments, according to the requirement, only the temperature sensor is disposed on the cooling main 210, and the temperature sensor is disposed on one side of the liquid outlet of the heat exchanger 211 close to the first liquid inlet end and the second liquid inlet end, so that the temperature of the cooling liquid before cooling the battery can be detected.
The first temperature sensor 225 and the second temperature sensor 235 are both electrically connected to the battery management system 140, and meanwhile, the controller 131 of the air conditioning system 130 is electrically connected to the battery management system 140, and when the first temperature sensor 225 and the second temperature sensor 235 detect that the temperature of the cooling liquid is too high or too low, the battery management system 140 sends a control signal to the controller 131, so that the controller 131 controls the air conditioning system 130 to correspondingly adjust the heat exchange efficiency of the heat exchanger 211.
The battery cooling system 200 also includes a third temperature sensor 226 and a fourth temperature sensor 236. The third temperature sensor 226 is disposed on the first cooling branch 220 and between the liquid inlet of the heat exchanger 211 and the second cooling portion 224, that is, the third temperature sensor 226 is disposed on the second branch pipe 222, and the temperature of the coolant in the first cooling branch 220, which completes the cooling of the two first batteries 110, can be detected by the third temperature sensor 226. The fourth temperature sensor 236 is disposed on the second cooling branch 230 and between the liquid inlet of the heat exchanger 211 and the fourth cooling portion 234, that is, the fourth temperature sensor 236 is disposed on the fourth branch pipe 232, and the temperature of the cooling liquid for cooling the two second batteries 120 in the second cooling branch 230 can be detected by the fourth temperature sensor 236. Meanwhile, the third and fourth temperature sensors 226 and 236 are electrically connected to the battery management system 140, respectively.
According to the present embodiment, there is provided an electric vehicle 10, wherein the working principle of the electric vehicle 10 is as follows:
the battery management system 140 controls the operation of the first cooling pump 241 to supply liquid to the first cooling portion 223 and the second cooling portion 224 according to the temperature of the first battery 110, so as to cool the two first batteries 110, and since the first cooling pump 241 is disposed on the first cooling branch 220, the cooling effect of the first cooling branch 220 can be adjusted by controlling the rotation speed of the first cooling pump 241. The battery management system 140 controls the operation of the second cooling pump 242 to supply liquid to the third cooling part 233 and the fourth cooling part 234 according to the temperature of the second battery 120, so as to cool the two second batteries 120, and since the second cooling pump 242 is disposed on the second cooling branch 230, the cooling effect of the second cooling branch 230 can be adjusted by controlling the rotation speed of the second cooling pump 242.
The battery cooling system 200 provided by the present embodiment has at least the following advantages:
the embodiment of the invention provides a battery cooling system 200, which realizes cooling of corresponding batteries by arranging a cooling pump on a cooling branch, so that the cooling pump only needs to meet the liquid supply requirement of one cooling branch, and the cooling pump with smaller flow and lift can meet the requirement, thereby being beneficial to reducing the cost. And the flow control to corresponding cooling branch can be realized through the rotational speed of control cooling pump, need not to set up the governing valve on the cooling branch and can satisfy different cooling demands, adjusts the flow through the governing valve relatively moreover, and the cooling pump is the initiative regulation to the regulation of flow to can reduce the resistance to the fluid, the system energy consumption is lower.
The embodiment of the invention also provides an electric vehicle 10 which comprises the battery cooling system 200, so that the electric vehicle has the advantages that the cooling pump with smaller flow and lift can meet the requirement, the cost is low, meanwhile, no regulating valve is needed, the flow regulation is realized through the active regulation of the cooling pump, the resistance to fluid can be reduced, and the energy consumption of the system is lower.
Fig. 3 is a block diagram of steps of the control method provided in this embodiment. Referring to fig. 3, an embodiment of the invention further provides a control method for controlling the battery cooling system 200, that is, the battery management system 140 executes the control method to control the battery cooling system 200. Specifically, the control method comprises the following steps:
s01: acquiring a first temperature signal indicative of a temperature of the first battery 110; a second temperature signal indicative of the temperature of second battery 120 is acquired.
The electric vehicle 10 is provided with temperature sensors for detecting temperatures of the first and second batteries 110 and 120 at the two first and second batteries 110 and 120, respectively, and the temperature sensors transmit a first temperature signal representing the temperature of the first battery 110 and a second temperature signal representing the temperature of the second battery 120 to the battery management system 140.
SO 2: the first and second cooling pumps 241 and 242 are controlled according to the first and second temperature signals, respectively.
After receiving the first temperature signal and the second temperature signal, the battery management system 140 determines whether the first battery 110 and/or the second battery 120 needs to be cooled by analyzing the first temperature signal and the second temperature signal, so as to control the first cooling pump 241 and the second cooling pump 242 to operate according to the determination result, and meanwhile, in order to ensure that the cooling requirements of the first battery 110 and the second battery 120 can be met, the battery management system 140 controls the controller 131 according to the cooling requirements, so as to change the operating state of the air conditioning system 130 through the controller 131.
S21: when the temperature of the first battery 110 reaches the preset threshold and the temperature of the second battery 120 is less than the preset threshold, the first cooling pump 241 is controlled to operate until the temperature of the first battery 110 is reduced to the preset temperature.
The preset threshold value is 33-35 ℃, and the preset temperature is 26-28 ℃. When the temperature of the first battery 110 reaches 33 ℃ -35 ℃ and the temperature of the second battery 120 does not reach the preset threshold value, the battery management system 140 controls the first cooling pump 241 to operate, at this time, the second cooling pump 242 is in a closed state, so that the first battery 110 is cooled through the first cooling branch 220 until the temperature of the first battery 110 is reduced to 26 ℃ -28 ℃, the battery management system 140 controls the first cooling pump 241 to stop operating, and the cooling process is finished.
S22: when the temperature of the first battery 110 and the temperature of the second battery 120 both reach the preset threshold value and the temperature difference is within the preset range, the first cooling pump 241 and the second cooling pump 242 are controlled to synchronously operate until the temperature of the first battery 110 and the temperature of the second battery 120 both decrease to the preset temperature.
The preset range is 5 ℃, that is, when the temperatures of the first battery 110 and the second battery 120 reach 33 ℃ to 35 ℃ and the temperature difference is less than 5 ℃, the cooling requirements of the first battery 110 and the second battery 120 are similar, so that the cooling requirements can be met by controlling the first cooling pump 241 and the second cooling pump 242 to operate simultaneously, and the temperature difference between the first battery 110 and the second battery 120 is within the preset range.
S23: when the temperature of the first battery 110 and the temperature of the second battery 120 both reach the preset threshold and the temperature difference exceeds the preset range, the first cooling pump 241 and the second cooling pump 242 are respectively controlled to operate until the temperature of the first battery 110 and the temperature of the second battery 120 are reduced to the preset temperature and the temperature difference is within the preset range.
Since the temperature difference between the first battery 110 and the second battery 120 is large, the cooling requirements of the first battery 110 and the second battery 120 are large, and at this time, the battery management system 140 controls the rotation speed of the first cooling pump 241 according to the cooling requirement of the first battery 110, and controls the rotation speed of the second cooling pump 242 according to the cooling requirement of the second battery 120, so as to meet the cooling requirements of the first battery 110 and the second battery 120.
S24: and when the temperature of the first battery 110 and the temperature of the second battery 120 do not reach the preset threshold value and the temperature difference exceeds the preset range, controlling the battery cooling system 200 to self-circulate.
The temperatures of the first battery 110 and the second battery 120 do not reach the preset threshold, that is, neither the first battery 110 nor the second battery 120 needs to be cooled, but the temperature difference between the first battery 110 and the second battery 120 is large, so that the battery cooling system 200 is controlled to perform self-circulation to equalize the temperatures of the first battery 110 and the second battery 120. The battery cooling system 200 is in a self-circulation state, i.e., the first cooling pump 241 and the second cooling pump 242 are operated, and the air conditioning system 130 is in a shut-down state, i.e., in a self-circulation state, the cooling fluid is not cooled at the heat exchanger 211.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A battery cooling system is characterized by comprising a cooling main circuit, a first cooling branch circuit, a second cooling branch circuit, a first cooling pump and a second cooling pump, wherein the first cooling branch circuit and the second cooling branch circuit are arranged in parallel and are connected with the cooling main circuit in series to form a cooling loop;
the cooling part of the first cooling branch cools the first battery; the cooling part of the second cooling branch cools the second battery;
the first cooling pump is arranged on the first cooling branch and supplies liquid to the cooling part of the first cooling branch; the second cooling pump is arranged on the second cooling branch and supplies liquid to the cooling part of the second cooling branch.
2. The battery cooling system according to claim 1, wherein the first cooling branch has a first liquid inlet end and a first liquid return end which are opposite to each other, and the first liquid inlet end and the first liquid return end are connected with two ends of the cooling main circuit at the same time to form a cooling circuit; the first cooling pump is positioned at the first liquid inlet end; and/or the presence of a gas in the gas,
the second cooling branch is provided with a second liquid inlet end and a second liquid return end which are opposite, and the second liquid inlet end and the second liquid return end are simultaneously connected with two ends of the cooling main circuit to form a cooling circuit; the second cooling pump is located at the second liquid inlet end.
3. The battery cooling system according to claim 2, wherein the first cooling branch has a first degassing port located at the first liquid return end; and/or the presence of a gas in the gas,
the second cooling branch is provided with a second degassing port, and the second degassing port is positioned at the second liquid return end.
4. The battery cooling system according to claim 3, further comprising a water replenishment tank for replenishing the cooling circuit with a cooling liquid; the first degassing port and/or the second degassing port are/is communicated with the water replenishing tank; and/or the presence of a gas in the gas,
and a water replenishing port is arranged on the cooling main road and is positioned between the first cooling branch and the second cooling branch.
5. The battery cooling system according to claim 1, wherein the number of the cooling portions in the first cooling branch is plural, and the plural cooling portions in the first cooling branch are provided in one-to-one correspondence with the plural first batteries; and/or the presence of a gas in the gas,
the number of the cooling parts in the second cooling branch is multiple, and the multiple cooling parts in the second cooling branch are arranged in one-to-one correspondence with the multiple second batteries.
6. The battery cooling system according to any one of claims 1 to 5, further comprising a heat exchanger provided on the cooling main for cooling the coolant flowing through the heat exchanger.
7. The battery cooling system according to claim 6, further comprising providing a first temperature sensor and a second temperature sensor; the first temperature sensor is arranged on the first cooling branch, and the first temperature sensor is positioned between a liquid outlet of the heat exchanger and a cooling part of the first cooling branch; the second temperature sensor is arranged on the second cooling branch, and the second temperature sensor is positioned between the liquid outlet of the heat exchanger and the cooling part of the second cooling branch; and/or the presence of a gas in the gas,
the battery cooling system further includes a third temperature sensor and a fourth temperature sensor; the third temperature sensor is arranged on the first cooling branch and is positioned between the liquid inlet of the heat exchanger and the cooling part of the first cooling branch; the fourth temperature sensor is arranged on the second cooling branch, and is positioned between the liquid inlet of the heat exchanger and the cooling part of the second cooling branch.
8. An electric vehicle characterized in that it comprises a battery cooling system according to any one of claims 1 to 7.
9. A control method for controlling the battery cooling system according to any one of claims 1 to 7, characterized by comprising:
acquiring a first temperature signal representing the temperature of the first battery;
acquiring a second temperature signal representing the temperature of the second battery;
and respectively controlling a first cooling pump and a second cooling pump according to the first temperature signal and the second temperature signal.
10. The control method of claim 9, wherein the step of controlling the first and second cooling pumps in accordance with the first and second temperature signals, respectively, comprises:
when the temperature of the first battery reaches a preset threshold value and the temperature of the second battery is smaller than the preset threshold value, controlling the first cooling pump to operate until the temperature of the first battery is reduced to the preset temperature;
when the temperature of the first battery and the temperature of the second battery reach preset threshold values and the temperature difference is within a preset range, controlling the first cooling pump and the second cooling pump to synchronously operate until the temperature of the first battery and the temperature of the second battery are both reduced to preset temperatures;
when the temperature of the first battery and the temperature of the second battery both reach the preset threshold value and the temperature difference exceeds a preset range, respectively controlling the first cooling pump and the second cooling pump to operate until the temperature of the first battery and the temperature of the second battery are reduced to the preset temperature and the temperature difference is within the preset range;
when the temperature of the first battery and the temperature of the second battery do not reach the preset threshold value, and the temperature difference exceeds the preset range, the battery cooling system is controlled to self-circulate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010140613.0A CN111186290A (en) | 2020-03-03 | 2020-03-03 | Battery cooling system, electric vehicle and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010140613.0A CN111186290A (en) | 2020-03-03 | 2020-03-03 | Battery cooling system, electric vehicle and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111186290A true CN111186290A (en) | 2020-05-22 |
Family
ID=70704845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010140613.0A Pending CN111186290A (en) | 2020-03-03 | 2020-03-03 | Battery cooling system, electric vehicle and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111186290A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115425323A (en) * | 2022-09-08 | 2022-12-02 | 湖北亿纬动力有限公司 | Battery thermal management system, debugging method thereof and electric vehicle |
| CN116581428A (en) * | 2023-07-12 | 2023-08-11 | 宁德时代新能源科技股份有限公司 | Cooling system and energy storage power station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030044662A1 (en) * | 2001-08-31 | 2003-03-06 | Plug Power Inc. | Method and apparatus for thermal management in a fuel cell system |
| CN102765321A (en) * | 2012-07-27 | 2012-11-07 | 浙江吉利汽车研究院有限公司杭州分公司 | Cooling system for electric vehicle |
| WO2018041085A1 (en) * | 2016-08-31 | 2018-03-08 | 中车青岛四方机车车辆股份有限公司 | Cooling system for hydrogen energy fuel cell of tram |
| CN109599608A (en) * | 2017-09-30 | 2019-04-09 | 比亚迪股份有限公司 | The humidity control system of on-vehicle battery |
-
2020
- 2020-03-03 CN CN202010140613.0A patent/CN111186290A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030044662A1 (en) * | 2001-08-31 | 2003-03-06 | Plug Power Inc. | Method and apparatus for thermal management in a fuel cell system |
| CN102765321A (en) * | 2012-07-27 | 2012-11-07 | 浙江吉利汽车研究院有限公司杭州分公司 | Cooling system for electric vehicle |
| WO2018041085A1 (en) * | 2016-08-31 | 2018-03-08 | 中车青岛四方机车车辆股份有限公司 | Cooling system for hydrogen energy fuel cell of tram |
| CN109599608A (en) * | 2017-09-30 | 2019-04-09 | 比亚迪股份有限公司 | The humidity control system of on-vehicle battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115425323A (en) * | 2022-09-08 | 2022-12-02 | 湖北亿纬动力有限公司 | Battery thermal management system, debugging method thereof and electric vehicle |
| CN116581428A (en) * | 2023-07-12 | 2023-08-11 | 宁德时代新能源科技股份有限公司 | Cooling system and energy storage power station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111016737B (en) | Electric automobile thermal management system, control method and electric automobile | |
| EP3621839B1 (en) | A cooling arrangement for cooling of an electric machine and at least one further component of an electric power unit and a vehicle comprising such a cooling arrangement | |
| CN103972607B (en) | Electric vehicle heat management system | |
| CN102574472B (en) | The cooling system of elec. vehicle | |
| CN108407568B (en) | Automobile thermal management system and pure electric automobile | |
| US7971447B2 (en) | Control parameters for a high voltage battery cooling strategy | |
| CN113442679B (en) | Engineering machine and integrated thermal management system | |
| CN110509744B (en) | Electric automobile thermal management system and electric automobile | |
| CN208827529U (en) | A kind of automotive thermal tube reason system and automobile | |
| CN108099544B (en) | Whole-vehicle thermal management system and management method for pure electric vehicle | |
| CN111186290A (en) | Battery cooling system, electric vehicle and control method | |
| CN113978274A (en) | Plug-in fuel cell hybrid electric vehicle thermal management system and control method thereof | |
| CN108859740A (en) | Cooling system and electric automobile | |
| CN216467248U (en) | Integrated heat management module | |
| CN219696540U (en) | Thermal management integrated module and vehicle | |
| CN210733893U (en) | Electric automobile's thermal management system and electric automobile that has it | |
| CN110015195B (en) | Electric vehicle heat management system | |
| CN111746297B (en) | Vehicle thermal management system and new energy automobile | |
| CN211592229U (en) | Battery cooling system and electric vehicle | |
| US11552347B2 (en) | Bi-directional switchable cooling flow for traction battery | |
| CN113937385B (en) | Battery system, control method and control device for battery system, and vehicle | |
| US20240300296A1 (en) | Heat management system | |
| CN102874099B (en) | Cooling system and electric vehicle | |
| US20240300289A1 (en) | Thermal management system | |
| CN116039334B (en) | Extended range electric vehicle thermal management system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200522 |