WO2024067632A1 - 车辆的电池温度的调节方法、装置和车辆 - Google Patents

车辆的电池温度的调节方法、装置和车辆 Download PDF

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Publication number
WO2024067632A1
WO2024067632A1 PCT/CN2023/121717 CN2023121717W WO2024067632A1 WO 2024067632 A1 WO2024067632 A1 WO 2024067632A1 CN 2023121717 W CN2023121717 W CN 2023121717W WO 2024067632 A1 WO2024067632 A1 WO 2024067632A1
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WIPO (PCT)
Prior art keywords
temperature
pipeline
coolant
thermal management
management system
Prior art date
Application number
PCT/CN2023/121717
Other languages
English (en)
French (fr)
Inventor
黄兴
赵洪辉
丁天威
王宇鹏
都京
曲禄成
刘岩
郝志强
段盼
韩令海
Original Assignee
中国第一汽车股份有限公司
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Application filed by 中国第一汽车股份有限公司 filed Critical 中国第一汽车股份有限公司
Publication of WO2024067632A1 publication Critical patent/WO2024067632A1/zh

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/63Control systems
    • H01M10/635Control systems based on ambient temperature
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Definitions

  • Embodiments of the present application relate to the field of vehicles, and more specifically, to a method and device for regulating the battery temperature of a vehicle, and a vehicle.
  • the thermal management technology for fuel cells in vehicles is divided into large cycles and small cycles. Since the diameter of the pipes used when running the small cycle is larger and the internal coolant capacity is larger, resulting in large heat dissipation under low temperature conditions, there is still a technical problem of low thermal management efficiency of vehicle batteries.
  • the embodiments of the present application provide a method, device and vehicle for regulating the battery temperature of a vehicle, so as to at least solve the technical problem of low thermal management efficiency of the vehicle battery.
  • a method for adjusting the battery temperature of a vehicle includes: obtaining the initial temperature of the battery thermal management system of the vehicle; determining the working mode of the pipes and valves in the battery thermal management system based on the initial temperature, wherein the working mode is used to characterize whether the pipes and valves are in an open state or a closed state; determining the content of the coolant in the outer layer of the double-layer pipe in the battery thermal management system based on the working mode; and adjusting the cooling temperature of the battery thermal management system based on the content of the coolant.
  • the content of coolant in the outer layer of the double-layer pipeline in the battery thermal management system is determined, including: based on the operating mode, controlling the vacuum water injection pump in the battery thermal management system to extract the coolant from the outer layer of the pipeline; in response to all the coolant being extracted, determining the current temperature and temperature rise rate of the battery thermal management system; based on the current temperature and temperature rise rate, controlling the vacuum water injection pump to inject the coolant back into the outer layer of the pipeline.
  • controlling the vacuum water injection pump to extract the cooling liquid from the outer pipeline includes: responding to The working mode is that the first stop valve, the second stop valve, the first valve of the three-way valve, and the first pipeline of the second valve are in an open state, and the vacuum water injection pump is controlled to extract the coolant from the outer pipeline.
  • the method further includes: in response to the cooling liquid being completely pumped out, closing the first stop valve, and controlling the vacuum water injection pump to pump out the air in the outer pipeline.
  • the vacuum water injection pump is controlled to inject the coolant back to the outer pipeline, including: in response to the current temperature being higher than a first temperature threshold and the temperature rise rate being higher than a temperature rise rate threshold, or in response to the current temperature being higher than a second temperature threshold, the vacuum water injection pump is controlled to inject the coolant back to the outer pipeline, wherein the first temperature threshold is less than the second temperature threshold.
  • the method further includes: determining a coolant extraction condition based on a liquid level of a water storage tank in the battery thermal management system.
  • a device for regulating the battery temperature of a vehicle may include: an acquisition component, configured to acquire the initial temperature of the battery thermal management system of the vehicle; a first determination component, configured to determine the working mode of the pipeline and valve in the battery thermal management system based on the initial temperature, wherein the working mode is used to characterize the open state or closed state of the pipeline and valve; a second determination component, configured to determine the content of the coolant in the outer layer of the double-layer pipeline in the battery thermal management system based on the working mode; and a regulation component, configured to regulate the cooling temperature of the battery thermal management system based on the content of the coolant.
  • a computer-readable storage medium which includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the method for adjusting the battery temperature of a vehicle of the embodiment of the present application.
  • a processor is further provided.
  • the processor is used to run a program, wherein when the program is run, the method for adjusting the battery temperature of a vehicle according to an embodiment of the present application is executed.
  • a vehicle is further provided, and the vehicle is used to execute the method for adjusting the battery temperature of the vehicle according to the embodiment of the present application.
  • the initial temperature of the battery thermal management system of the vehicle is obtained; based on the initial temperature, the working mode of the pipes and valves in the battery thermal management system is determined, wherein the working mode is used to characterize whether the pipes and valves are in an open state or a closed state; based on the working mode, the content of the coolant in the outer layer of the double-layer pipe in the battery thermal management system is determined; based on the content of the coolant, the cooling temperature of the battery thermal management system is adjusted.
  • the embodiment of the present application determines the capacity of the coolant in the outer layer of the system according to the initial temperature of the vehicle battery thermal management system and the different working modes of the pipes and valves in the system. The purpose of adjusting the cooling temperature of the battery thermal management system is achieved, thereby solving the technical problem of low thermal management efficiency of the vehicle battery and achieving the technical effect of improving the thermal management efficiency of the vehicle battery.
  • FIG1 is a flow chart of a method for adjusting battery temperature of a vehicle according to an embodiment of the present application
  • FIG2 is a schematic diagram of a battery thermal management system device for a vehicle according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a three-position three-way valve in a battery thermal management system for a vehicle according to an embodiment of the present application
  • FIG. 4 is a schematic diagram of a cross section of a double-layer pipeline in a battery thermal management system for a vehicle according to an embodiment of the present application;
  • FIG5 is a flow chart of another method for adjusting battery temperature of a vehicle according to an embodiment of the present application.
  • FIG6 is a schematic diagram of a battery temperature regulating device for a vehicle according to an embodiment of the present application.
  • FIG7 is a schematic diagram of the structure of a computer-readable storage medium according to an embodiment of the present application.
  • FIG8 is a schematic diagram of the structure of a processor according to an embodiment of the present application.
  • an embodiment of a method for adjusting the battery temperature of a vehicle is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions. Executed, and although a logical order is shown in the flow charts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.
  • FIG1 is a flow chart of a method for adjusting the battery temperature of a vehicle according to an embodiment of the present application. As shown in FIG1 , the method may include the following steps.
  • Step S102 obtaining the initial temperature of the battery thermal management system of the vehicle.
  • the initial temperature of the battery thermal management system of the vehicle can be obtained by the temperature sensor of the vehicle, wherein the battery can be a fuel cell, and the vehicle can be an electric vehicle, a hybrid vehicle, etc., which is not specifically limited here.
  • the battery thermal management solution may include a large cycle and a small cycle, wherein the large cycle may be used to characterize the process in which the coolant flows out of the vehicle engine, all of the liquid passes through the vehicle radiator for heat dissipation and cooling, and then enters the engine to cool the engine.
  • the small cycle may be used to characterize the process in which the coolant flows out of the vehicle engine, a small portion of the liquid passes through the vehicle radiator for heat dissipation and cooling, and then enters the engine to cool the engine.
  • Step S104 based on the initial temperature, determining the working mode of the pipes and valves in the battery thermal management system.
  • the working mode of the pipes and valves in the battery thermal management system can be determined according to different temperature states, wherein the working mode can be used to characterize the open state or closed state of the pipes and valves. Different temperature states can correspond to different working modes.
  • the suitable operating temperature of the vehicle battery may be 0-40°C. Too high or too low a temperature may affect the activity of the battery cells and even the life of the battery cells.
  • the battery temperature When the battery temperature is at a low temperature, the battery may be preheated before charging, wherein the low temperature state may be used to indicate that the battery temperature is below 0°C.
  • Figure 2 is a schematic diagram of a battery thermal management system device for a vehicle according to an embodiment of the present application.
  • pipeline 204 can be a pipeline connecting the fuel cell stack 201 to the DC converter
  • pipeline 205 can be a pipeline connecting the fuel cell stack 201 to the air
  • pipeline 206 can be a pipeline connecting the fuel cell stack 201 to the hydrogen.
  • the cooling inlet 202 and the cooling outlet 203 of the fuel cell stack 201 have a temperature sensor 207 and a temperature sensor 209.
  • the cooling outlet of the fuel cell stack is connected to a water pump 208, and then connected to a three-position three-way valve 211 and a double-layer pipeline, and then connected to a three-position three-way valve 210, and returns to the cooling inlet 202, wherein the pipeline where the double-layer pipeline is located is a small circulation pipeline, and the pipeline where the radiator 217 is located is a large circulation pipeline.
  • a stop valve 212 and a stop valve 213 are connected, and a vacuum water injection pump 214 is connected after the stop valve 213, and the vacuum water injection pump 214 is connected to the lower end of a water storage tank 215 after the vacuum water injection pump 214.
  • the water storage tank 215 contains a liquid level sensor 216.
  • FIG3 is a three-way valve in a battery thermal management system of a vehicle according to an embodiment of the present application.
  • the three-position three-way valve may include a pipeline 1, a pipeline 2 and a pipeline 3, wherein the pipeline 2 may include a pipeline 2-1 and two pipelines 2-2; the pipeline 1 may be a coolant inlet, the pipeline 2 may be a coolant outlet matching the double-layer pipeline, the pipeline 3 may be a common coolant outlet, and the three-position three-way valve as a whole may be a conventional three-way valve with an integrated reducing valve, so as to control the coolant from the pipeline 1 inlet to be exported only through one of the pipelines 2-1, 2-2 and 3.
  • pipeline 205 when the battery thermal management system of the vehicle is in a low temperature state, pipeline 205 is connected to air and pipeline 206 is connected to hydrogen, it is determined that pipeline 2-1, stop valve 212 and stop valve 213 of the three-position three-way valve 210 and the three-position three-way valve 211 are in the open state.
  • Step S106 based on the working mode, determining the content of the coolant in the outer layer of the double-layer pipeline in the battery thermal management system.
  • step S106 of the present application after determining the working mode of the pipes and valves in the battery thermal management system of the vehicle, the content of the coolant in the outer layer of the double-layer pipeline in the battery thermal management system can be determined according to the opening state of different pipes and valves, wherein the vehicle can perform thermal management of the battery of the vehicle by allowing the coolant to flow through the engine.
  • Figure 4 is a schematic diagram of a double-layer pipeline cross-section in a battery thermal management system of a vehicle according to an embodiment of the present application.
  • the valve inner diameter of the three-position three-way valve matches the diameter length of the inner layer of the double-layer pipeline
  • the outer diameter of the three-position three-way valve matches the diameter length of the outer layer of the double-layer pipeline.
  • the vacuum water injection pump can draw the coolant in the outer pipeline into the water storage tank; based on the liquid level position of the water storage tank and the temperature and air conditions of the outer pipeline, the opening state of the stop valve can be changed to reversely inject the coolant in the water storage tank back into the outer pipeline.
  • Step S108 adjusting the cooling temperature of the battery thermal management system based on the content of the coolant.
  • the cooling temperature of the battery thermal management system can be adjusted by different contents of coolant in the outer pipeline. After the temperature adjustment is completed, the conduction state of the pipeline can be automatically adjusted in combination with the temperature.
  • the above steps S102 to S108 of the present application are performed by obtaining the initial temperature of the battery thermal management system of the vehicle; based on the initial temperature, determining the working mode of the pipes and valves in the battery thermal management system, wherein the working mode is used to characterize whether the pipes and valves are in an open state or a closed state; based on the working mode, determining the content of coolant in the outer layer of the double-layer pipe in the battery thermal management system; and adjusting the cooling temperature of the battery thermal management system based on the content of coolant.
  • the embodiment of the present application determines the capacity of the coolant in the outer layer of the system according to the initial temperature of the vehicle battery thermal management system and the different working modes of the pipes and valves in the system, thereby achieving the purpose of adjusting the cooling temperature of the battery thermal management system, thereby solving the technical problem of low thermal management efficiency of the vehicle battery.
  • the technical effect of improving the thermal management efficiency of vehicle batteries is achieved.
  • step S106 determines the content of coolant in the outer layer of the double-layer pipeline in the battery thermal management system, including: based on the working mode, controlling the vacuum water injection pump to extract the coolant from the outer layer pipeline; in response to all the coolant being extracted, determining the current temperature and temperature rise rate of the battery thermal management system; based on the current temperature and temperature rise rate, controlling the vacuum water injection pump to inject the coolant back into the outer layer pipeline.
  • the vacuum water injection pump in the system can be controlled to extract the coolant from the outer layer of the double-layer pipeline.
  • the current temperature of the battery thermal management system and the rate of temperature rise can be determined by the temperature sensor.
  • the vacuum water injection pump in the system can be controlled to inject the coolant back into the outer layer.
  • the vacuum water injection pump 214 can run forward to extract the coolant in the outer pipeline into the water storage tank 215 .
  • the operating speed of the water pump 208 can reach a certain value, for example, the operating speed can be R0, which is not specifically limited here.
  • the vacuum water injection pump 214 can be controlled to extract air from the outer pipeline, and the temperature sensor 207 and the temperature sensor 209 can be controlled to measure the current temperature and temperature rise rate of the battery thermal management system.
  • the vacuum water injection pump is controlled to extract the coolant from the outer pipeline, including: in response to the working mode that the first pipeline of the first stop valve, the second stop valve, the first valve of the three-way valve, and the second valve is in an open state, the vacuum water injection pump is controlled to extract the coolant from the outer pipeline.
  • the coolant in the outer pipeline of the double-layer pipeline can be completely extracted by controlling the vacuum water injection pump.
  • the vacuum water injection pump can draw the coolant in the outer pipeline into the water storage tank, wherein the first stop valve corresponds to the stop valve 212, the second stop valve corresponds to the stop valve 213, the first valve of the three-way valve corresponds to the three-position three-way valve 210, the second valve of the three-way valve corresponds to the three-position three-way valve 211, and the first pipeline corresponds to the pipeline 2-1.
  • the method further includes: in response to the cooling liquid being completely pumped out, closing the first stop valve, and controlling the vacuum water injection pump to pump out the air in the outer pipeline.
  • the first stop valve when all the coolant in the outer layer pipeline is pumped out, the first stop valve can be closed.
  • the vacuum water injection pump is controlled to extract the air in the outer pipeline until the outer pipeline is evacuated to a vacuum state.
  • the stop valve 212 can be closed, and the vacuum water injection pump 214 can be controlled to draw vacuum to the outer pipeline.
  • the vacuum extraction time can be a preset value, and A1 can be 10s.
  • the current temperature of the system can be determined by a temperature sensor.
  • the water pump speed in the system can be controlled according to a predetermined program, so that the difference between the current temperature and the initial temperature can be within a preset temperature range, wherein the preset temperature T1 can be 0°C and the preset temperature range can be 6-10°C.
  • the vacuum water injection pump is controlled to inject the coolant back to the outer pipeline, including: in response to the current temperature being higher than a first temperature threshold and the temperature rise rate being higher than the temperature rise rate threshold, or in response to the temperature being higher than a second temperature threshold, the vacuum water injection pump is controlled to inject the coolant back to the outer pipeline.
  • the vacuum water injection pump can be controlled to inject the coolant back into the outer pipeline, wherein the first temperature threshold is less than the second temperature threshold.
  • the stop valve 213 can be opened to control the vacuum water injection pump 214 to run in reverse to inject the coolant in the water storage tank back to the outer pipeline, wherein the first temperature threshold T2 can be 40°C, the temperature rise rate threshold K1 can be 0.5°C/s, and the second temperature threshold T3 can be 60°C.
  • the method further includes: determining the extraction status of the coolant according to the liquid level of the water storage tank in the battery thermal management system.
  • the liquid level of the water storage tank in the battery thermal management system can be determined by a liquid level sensor, so that the extraction status of the coolant in the outer pipeline can be determined according to the different liquid levels.
  • the stop valve can be opened. 212, extend the water injection time to A2, where A2 may be 10 seconds.
  • the vacuum water injection pump when the water injection time is extended to A2, the vacuum water injection pump can be turned off, and the working mode of the three-position three-way valve can be automatically adjusted according to the target operating temperature of the fuel cell stack in combination with the temperature sensor.
  • the pipeline 2-1 in the three-position three-way valves 210 and 211 can be automatically adjusted to open according to the target operating temperature of the fuel cell stack 201 in combination with the temperature sensors 207 and 209, or the pipelines 2-1 and 2-2 can be controlled to open at the same time, or the large circulation can be controlled to be open.
  • the embodiment of the present application determines the capacity of the coolant in the outer pipeline of the system according to the initial temperature of the vehicle battery thermal management system and the different working modes of the pipes and valves in the system, thereby achieving the purpose of adjusting the cooling temperature of the battery thermal management system, thereby solving the technical problem of low thermal management efficiency of the vehicle battery and realizing the technical effect of improving the thermal management efficiency of the vehicle battery.
  • the cooling circuit in the vehicle's thermal management system is required to have a small amount of circulating coolant during the startup of the entire machine and a small amount of heat dissipation for the entire machine.
  • the large and small cycles in the existing technology can solve the thermal management problem of vehicle fuel cells, but the small cycle still has technical problems such as large pipe diameter, high internal coolant content and more heat dissipation under low temperature conditions.
  • a fuel cell engine thermal management control method which includes: during the low-temperature start-up phase of the engine, the control module controls the operation of the water pump to drive the coolant in the positive temperature coefficient thermistor (PTC) heating circuit to flow through the PTC heater, and controls the PTC heater to heat the coolant.
  • the control module controls the water pump, thermostat, cooling fan, PTC heater, and intercooler respectively to perform thermal management on the fuel cell engine. This achieves the purpose of improving the response speed of the thermal management system and enhancing the reliability of the thermal management system.
  • this method does not take into account the technical problem that the coolant content is high during the small cycle, resulting in a long startup time under low temperature conditions.
  • a hydrogen fuel cell thermal management system which includes a water pump, a thermostat, a deionizer, an intercooler, a PTC, a cooling module, a solenoid valve, a fuel cell and an expansion water tank.
  • the above different components constitute the first circuit, the second circuit and the third circuit.
  • the above three circuits work separately, so that the fuel cell can preheat the coolant before starting at low temperature, provide a better cooling effect during normal operation, and effectively improve the working efficiency of the fuel cell.
  • the system includes three circuits, the small cycle includes a deionizer, the large cycle includes a radiator, and the third circuit connected in parallel with the stack includes a PTC.
  • the increased coolant content of the small cycle and the additional third circuit is not considered, resulting in a technical problem that the startup takes a long time under low temperature conditions.
  • a commercial vehicle fuel cell thermal management system includes a control Device, hydrogen fuel cell system, electronically controlled three-way valve, electric heater, radiator, variable frequency fan, water supply tank, variable frequency water pump, deionization device, throttle valve, particulate filter, temperature sensor I, temperature sensor II.
  • the coolant of the thermal management system flows through the small cycle to achieve rapid temperature rise, ensuring that the coolant temperature reaches the optimal temperature range of the hydrogen fuel cell reaction in a short time, thereby improving the reaction efficiency of the hydrogen fuel cell.
  • the coolant temperature reaches the set optimal reaction temperature range
  • the coolant is gradually switched from the small cycle to the large cycle through the electronically controlled three-way valve, thereby achieving a better cooling effect, so that the hydrogen fuel cell is in the optimal reaction temperature range to improve its reaction efficiency, while reducing damage to the battery and extending the service life of the battery.
  • the system includes three loops, the small cycle includes PTC, the large cycle includes a radiator, and there are throttle valves and deionizers at the front and rear ends of the water pump.
  • the increased coolant content of the small cycle and the deionizer circuit is not considered, resulting in a technical problem that the startup takes a long time under low temperature conditions.
  • the embodiments of the present application propose a fuel cell thermal management system and a low-temperature control method, which creatively uses a variable valve, a double-layer pipeline and a vacuum pump.
  • the coolant in the outer layer of the system is pumped into a water storage tank, and the outer layer of the pipeline is vacuumed, thereby reducing heat loss and reducing the amount of coolant involved in the cycle, thereby achieving the purpose of shortening the temperature rise time.
  • the outer layer of the pipeline is filled with coolant, thereby entering a thermal management control mode with controllable large and small cycles.
  • the double-layer pipeline can reduce heat loss by vacuuming the outer layer of the pipeline, and it can also avoid the situation where too much space is occupied due to multiple separate pipelines.
  • FIG5 is a flow chart of another method for adjusting the battery temperature of a vehicle according to an embodiment of the present application. As shown in FIG5 , the method may include the following steps.
  • Step S502 determining the working mode of the pipeline and the valve.
  • the initial temperature of the vehicle's battery thermal management system can be obtained through a temperature sensor, and the working modes of pipes and valves in the battery thermal management system can be determined according to different temperature states, wherein the working mode can be used to characterize the open or closed state of the pipes and valves, and different temperature states can correspond to different working modes.
  • the battery thermal management scheme may include a large cycle and a small cycle, wherein the large cycle can be used to characterize the process in which coolant flows out of the vehicle engine, all of the liquid is cooled by the vehicle radiator, and then enters the engine to cool the engine; the small cycle can be used to characterize the process in which coolant flows out of the vehicle engine, a small portion of the liquid is cooled by the vehicle radiator, and then enters the engine to cool the engine.
  • the suitable operating temperature of the vehicle battery can be 0-40°C. Too high or too low temperature can affect the activity of the battery cells and even the life of the battery cells.
  • the battery temperature When the battery temperature is in a low temperature state, the battery can be preheated before charging. The low temperature state can be used to characterize that the battery temperature is below 0°C.
  • pipeline 204 may be a pipeline connecting the fuel cell stack 201 to the DC converter
  • pipeline 205 may be a pipeline connecting the fuel cell stack 201 to air
  • pipeline 206 may be a pipeline connecting the fuel cell stack 201 to hydrogen.
  • the cooling inlet 202 and the cooling outlet 203 of the fuel cell stack 201 have a temperature sensor 207 and a temperature sensor 209.
  • the cooling outlet of the fuel cell stack is connected to a water pump 208, and then connected to a three-position three-way valve 211 and a double-layer pipeline, and then connected to a three-position three-way valve 210, and returns to the cooling inlet 202, wherein the pipeline where the double-layer pipeline is located is a small circulation pipeline, and the pipeline where the radiator 217 is located is a large circulation pipeline.
  • a stop valve 212 and a stop valve 213 are connected, and a vacuum water injection pump 214 is connected after the stop valve 213, and the vacuum water injection pump 214 is connected to the lower end of a water storage tank 215 after the vacuum water injection pump 214.
  • the water storage tank 215 contains a liquid level sensor 216.
  • Figure 3 is a schematic diagram of a three-position three-way valve in a battery thermal management system of a vehicle according to an embodiment of the present application.
  • the three-position three-way valve may include a pipeline 1, a pipeline 2 and a pipeline 3, wherein pipeline 2 may include a pipeline 2-1 and two pipelines 2-2; pipeline 1 may be a coolant inlet, pipeline 2 may be a coolant outlet matching a double-layer pipeline, and pipeline 3 may be an ordinary coolant outlet.
  • the three-position three-way valve as a whole may be a conventional three-way valve with an integrated reducing valve, thereby controlling the coolant from the inlet of pipeline 1 to be exported only through one of pipelines 2-1, pipeline 2-2 and pipeline 3.
  • Figure 4 is a schematic diagram of a double-layer pipeline cross-section in a battery thermal management system of a vehicle according to an embodiment of the present application.
  • the valve inner diameter of the three-position three-way valve matches the diameter length of the inner layer of the double-layer pipeline
  • the outer diameter of the three-position three-way valve matches the diameter length of the outer layer of the double-layer pipeline.
  • pipeline 205 when the battery thermal management system of the vehicle is in a low temperature state, pipeline 205 is connected to air and pipeline 206 is connected to hydrogen, it is determined that pipeline 2-1, stop valve 212 and stop valve 213 of the three-position three-way valve 210 and the three-position three-way valve 211 are in the open state.
  • the vacuum water injection pump can draw the coolant in the outer pipeline into the water storage tank, wherein the first stop valve corresponds to the stop valve 212, the second stop valve corresponds to the stop valve 213, the first valve of the three-way valve corresponds to the three-position three-way valve 210, the second valve of the three-way valve corresponds to the three-position three-way valve 211, and the first pipeline corresponds to the pipeline 2-1.
  • the vacuum water injection pump 214 can run forward to extract the coolant in the outer pipeline into the water storage tank 215 .
  • the operating speed of the water pump 208 can reach a certain value, for example, the operating speed can be R0, which is not specifically limited here.
  • Step S504 monitoring the liquid level of the water storage tank.
  • the liquid level of the water storage tank in the battery thermal management system can be determined by a liquid level sensor, so that the extraction status of the coolant in the outer pipeline can be determined according to the different liquid levels.
  • Step S506 The vacuum water injection pump draws vacuum.
  • the first stop valve when all the coolant in the outer pipeline is pumped out, can be closed and the vacuum water injection pump can be controlled to pump out the air in the outer pipeline until the outer pipeline is pumped into a vacuum state.
  • the stop valve 212 can be closed, and the vacuum water injection pump 214 can be controlled to draw vacuum to the outer pipeline.
  • the vacuum extraction time can be a preset value, and A1 can be 10s.
  • the current temperature of the system can be determined by a temperature sensor.
  • the water pump speed in the system can be controlled according to a predetermined program, so that the difference between the current temperature and the initial temperature can be within a preset temperature range, wherein the preset temperature T1 can be 0°C and the preset temperature range can be 6-10°C.
  • Step S508 determining the temperature of the battery thermal management system.
  • the current temperature of the battery thermal management system and the rate of temperature increase can be determined by the temperature sensor.
  • Step S510 the vacuum water injection pump operates in reverse to inject the coolant back into the outer pipeline.
  • the vacuum water injection pump in the system can be controlled to inject the coolant back into the outer pipeline.
  • the stop valve 213 can be opened to control the vacuum water injection pump 214 to run in reverse to inject the coolant in the water storage tank back to the outer pipeline, wherein the first temperature threshold T2 can be 40°C, the temperature rise rate threshold K1 can be 0.5°C/s, and the second temperature threshold T3 can be 60°C.
  • Step S512 automatically adjusting the working mode of the pipeline and the valve.
  • the vacuum water injection pump 214 can be turned on. Open the stop valve 212 and extend the water injection time to A2, wherein A2 may be 10s.
  • the vacuum water injection pump can be turned off, and the working mode of the three-position three-way valve can be automatically adjusted according to the target operating temperature of the fuel cell stack in combination with the temperature sensor.
  • the pipeline 2-1 in the three-position three-way valves 210 and 211 can be automatically adjusted to open according to the target operating temperature of the fuel cell stack 201 in combination with the temperature sensors 207 and 209, or the pipelines 2-1 and 2-2 can be controlled to open at the same time, or the large circulation can be controlled to be open.
  • the embodiment of the present application determines the capacity of the coolant in the outer pipeline of the system according to the initial temperature of the vehicle battery thermal management system and the different working modes of the pipes and valves in the system, thereby achieving the purpose of adjusting the cooling temperature of the battery thermal management system, thereby solving the technical problem of low thermal management efficiency of the vehicle battery and realizing the technical effect of improving the thermal management efficiency of the vehicle battery.
  • a device for adjusting the battery temperature of a vehicle is also provided. It should be noted that the device for adjusting the battery temperature of a vehicle can be configured to execute the method for adjusting the battery temperature of a vehicle in embodiment 1.
  • FIG 6 is a schematic diagram of a vehicle battery temperature regulating device according to an embodiment of the present application.
  • the vehicle battery temperature regulating device 600 may include: an acquisition component 602, a first determination component 604, a second determination component 606 and an adjustment component 608.
  • the acquisition component 602 is configured to acquire the initial temperature of the battery thermal management system of the vehicle.
  • the first determination component 604 is configured to determine the working mode of the pipeline and the valve in the battery thermal management system based on the initial temperature, wherein the working mode is used to characterize the open state or closed state of the pipeline and the valve.
  • the second determination component 606 is configured to determine the content of the coolant in the outer layer pipeline of the double-layer pipeline in the battery thermal management system based on the working mode.
  • the regulating component 608 is configured to regulate the cooling temperature of the battery thermal management system based on the content of the coolant.
  • the terminal can also be a smart phone (such as Android phone, iOS phone, etc.), tablet computer, palm computer, mobile Internet device (Mobile Internet Devices, referred to as MID), PAD and other terminal devices.
  • a smart phone such as Android phone, iOS phone, etc.
  • tablet computer such as Samsung Galaxy Tabs, Samsung Galaxy Tabs, etc.
  • mobile Internet device Mobile Internet Devices, referred to as MID
  • PAD PAD and other terminal devices.
  • the second determination component 606 includes: a first control component, configured to control the vacuum water injection pump to extract the coolant from the outer pipeline based on the working mode; a third determination component, configured to determine the temperature rise rate of the battery thermal management system in response to the coolant being completely extracted; and a second control component, configured to control the temperature rise rate of the battery thermal management system based on the current temperature and the temperature rise rate.
  • a vacuum water injection pump to inject the coolant back into the outer pipeline.
  • first control component third determination component and second control component can be run in the terminal as part of the device, and the functions implemented by the above-mentioned components can be executed by the processor in the terminal.
  • the first control component includes: a third control component, configured to control the vacuum water injection pump to extract coolant from the outer pipeline in response to the working mode that the first stop valve, the second stop valve, the first valve of the three-way valve, the second valve and the first pipeline are in an open state.
  • a third control component configured to control the vacuum water injection pump to extract coolant from the outer pipeline in response to the working mode that the first stop valve, the second stop valve, the first valve of the three-way valve, the second valve and the first pipeline are in an open state.
  • the third control component mentioned above can be run in the terminal as a part of the device, and the functions implemented by the third control component can be executed by the processor in the terminal.
  • the device further comprises: a fourth control component, configured to close the first stop valve in response to the cooling liquid being completely extracted, and to control the vacuum water injection pump to extract the air in the outer pipeline.
  • a fourth control component configured to close the first stop valve in response to the cooling liquid being completely extracted, and to control the vacuum water injection pump to extract the air in the outer pipeline.
  • the fourth control component mentioned above can be run in the terminal as a part of the device, and the functions implemented by the above component can be executed by the processor in the terminal.
  • the second control component includes: a fifth control component, configured to control the vacuum water injection pump to inject coolant back into the outer pipeline in response to the current temperature being higher than a first temperature threshold and the temperature rise rate being higher than a temperature rise rate threshold, or in response to the temperature being higher than a second temperature threshold, wherein the first temperature threshold is lower than the second temperature threshold.
  • a fifth control component configured to control the vacuum water injection pump to inject coolant back into the outer pipeline in response to the current temperature being higher than a first temperature threshold and the temperature rise rate being higher than a temperature rise rate threshold, or in response to the temperature being higher than a second temperature threshold, wherein the first temperature threshold is lower than the second temperature threshold.
  • the fifth control component mentioned above can be run in the terminal as a part of the device, and the functions implemented by the above component can be executed by the processor in the terminal.
  • the device further includes: a fourth determination component, used to determine the extraction status of the coolant according to the liquid level of the water storage tank in the battery thermal management system.
  • a fourth determination component used to determine the extraction status of the coolant according to the liquid level of the water storage tank in the battery thermal management system.
  • the fourth determination component mentioned above can be run in the terminal as a part of the device, and the function implemented by the above component can be executed by the processor in the terminal.
  • the initial temperature of the battery thermal management system of the vehicle is obtained by an acquisition component; the working mode of the pipes and valves in the battery thermal management system is determined based on the initial temperature by a first determination component, wherein the working mode is used to characterize the open state or closed state of the pipes and valves; the content of the coolant in the outer layer of the double-layer pipe in the battery thermal management system is determined based on the working mode by a second determination component; and the cooling temperature of the battery thermal management system is adjusted by an adjustment component based on the content of the coolant.
  • the present application determines the capacity of the coolant in the outer layer of the system according to the initial temperature of the vehicle battery thermal management system and the different working modes of the pipes and valves in the system, thereby achieving the purpose of adjusting the cooling temperature of the battery thermal management system, thereby solving the technical problem of low thermal management efficiency of the vehicle battery and achieving the technical effect of improving the thermal management efficiency of the vehicle battery.
  • the various functional components provided in the embodiments of the present application can be operated in a vehicle battery temperature adjustment method or a similar operation device, and can also be stored as part of a computer-readable storage medium.
  • FIG. 7 is a schematic diagram of the structure of a computer-readable storage medium according to an embodiment of the present application.
  • a program product 70 in a real-time manner according to the present application is provided, on which a computer program is stored.
  • program codes for implementing the following steps are implemented:
  • determining the working mode of the pipeline and the valve in the battery thermal management system wherein the working mode is used to characterize whether the pipeline and the valve are in an open state or a closed state;
  • the cooling temperature of the battery thermal management system is adjusted.
  • the computer program is also executed by the processor to implement program code for the following steps: based on the operating mode, determining the content of coolant in the outer layer of the double-layer pipeline in the battery thermal management system, including: based on the operating mode, controlling the vacuum water injection pump in the battery thermal management system to extract the coolant from the outer layer of the pipeline; in response to all the coolant being extracted, determining the current temperature and temperature rise rate of the battery thermal management system; based on the current temperature and temperature rise rate, controlling the vacuum water injection pump to inject the coolant back into the outer layer of the pipeline.
  • the computer program is also executed by the processor to implement program codes for the following steps: based on the working mode, controlling the vacuum water injection pump to extract the coolant from the outer pipeline, including: in response to the working mode being that the first pipeline of the first stop valve, the second stop valve, the first valve of the three-way valve, and the second valve is in an open state, controlling the vacuum water injection pump to extract the coolant from the outer pipeline.
  • the computer program also implements program codes of the following steps when executed by the processor:
  • the method also includes: in response to the coolant being completely extracted, closing the first stop valve, and controlling the vacuum water injection pump to extract the air in the outer pipeline.
  • the computer program is also executed by the processor to implement program code for the following steps: based on the current temperature and the temperature rise rate, controlling the vacuum water injection pump to inject the coolant back to the outer pipeline, including: in response to the current temperature being higher than a first temperature threshold and the temperature rise rate being higher than a temperature rise rate threshold, or in response to the current temperature being higher than a second temperature threshold, controlling the vacuum water injection pump to inject the coolant back to the outer pipeline, wherein the first temperature threshold is less than the second temperature threshold.
  • the computer program also implements program codes of the following steps when executed by the processor: determining the extraction status of the coolant according to the liquid level of the water storage tank in the battery thermal management system.
  • the computer-readable storage medium may also be configured as a program code of various preferred or optional method steps provided by the method for regulating the battery temperature of a vehicle.
  • Computer readable storage media may include data signals propagated in baseband or as part of a carrier wave, in which readable program code is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above.
  • Non-volatile storage media may send, propagate, or transmit programs for use by or in conjunction with an instruction execution system, apparatus, or device.
  • the program code contained in the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, radio frequency, etc., or any suitable combination of the foregoing.
  • FIG8 is a schematic diagram of the structure of a processor according to an embodiment of the present application.
  • the processor 80 is configured to run a program, wherein the program executes the method for adjusting the battery temperature of the vehicle described in the embodiment of the present application when it is run.
  • the processor 80 may execute an operating program of a method for regulating the battery temperature in a vehicle.
  • the processor 80 may be configured to perform the following steps:
  • determining the working mode of the pipeline and the valve in the battery thermal management system wherein the working mode is used to characterize whether the pipeline and the valve are in an open state or a closed state;
  • the cooling temperature of the battery thermal management system is adjusted.
  • the processor 80 can be further configured to perform the following steps: based on the operating mode, determine the content of coolant in the outer layer of the double-layer pipeline in the battery thermal management system, including: based on the operating mode, control the vacuum water injection pump in the battery thermal management system to extract the coolant from the outer layer of the pipeline; in response to all the coolant being extracted, determine the current temperature and temperature rise rate of the battery thermal management system; based on the current temperature and temperature rise rate, control the vacuum water injection pump to inject the coolant back into the outer layer of the pipeline.
  • the processor 80 can be further configured to perform the following steps: based on the working mode, control the vacuum water injection pump to extract the coolant from the outer pipeline, including: in response to the working mode being that the first pipeline of the first stop valve, the second stop valve, the first valve of the three-way valve, and the second valve is in an open state, control the vacuum water injection pump to extract the coolant from the outer pipeline.
  • the processor 80 may be further configured to perform the following steps: the method further comprises: in response to the cooling liquid Pump out all the air, close the first stop valve, and control the vacuum water injection pump to pump out the air in the outer pipeline.
  • the processor 80 may be further configured to perform the following steps: based on the current temperature and the temperature rise rate, controlling the vacuum water injection pump to inject the coolant back into the outer pipeline, including: in response to the current temperature being higher than a first temperature threshold and the temperature rise rate being higher than a temperature rise rate threshold, or in response to the current temperature being higher than a second temperature threshold, controlling the vacuum water injection pump to inject the coolant back into the outer pipeline, wherein the first temperature threshold is less than the second temperature threshold.
  • the processor 80 may be further configured to perform the following steps: determining the extraction status of the coolant according to the liquid level of the water storage tank in the battery thermal management system.
  • a vehicle is also provided, which is used to execute the method for adjusting the battery temperature of the vehicle in Embodiment 1 of the present application.
  • the disclosed technical content can be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the components can be a logical function division. There may be other division methods in actual implementation, such as multiple components or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of components or modules, which can be electrical or other forms.
  • the components described as separate components may or may not be physically separated, and the components shown as components may or may not be physical components, that is, they may be located in one place or distributed on multiple components. Some or all of the components may be selected according to actual needs to achieve the purpose of the present embodiment.
  • each functional component in each embodiment of the present invention may be integrated into one processing component, or each component may exist physically separately, or two or more components may be integrated into one component.
  • the above-mentioned integrated components may be implemented in the form of hardware or in the form of software functional components.
  • the integrated components are implemented in the form of software functional components and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server or network device, etc.) to execute various embodiments of the present invention.
  • the aforementioned storage medium includes: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store program codes.
  • the solution provided in the embodiment of the present application can be applied to the process of adjusting the battery temperature of the vehicle to obtain the initial temperature of the battery thermal management system of the vehicle; based on the initial temperature, determine the working mode of the pipes and valves in the battery thermal management system, wherein the working mode is used to characterize whether the pipes and valves are in an open state or a closed state; based on the working mode, determine the content of coolant in the outer layer of the double-layer pipe in the battery thermal management system; based on the content of coolant, adjust the cooling temperature of the battery thermal management system.
  • the mechanism of adjusting the battery temperature in the above scheme can adjust the content and flow rate of coolant according to the working conditions of the pipes and valves in the thermal management system of the vehicle and the initial temperature of the battery to reduce the temperature of the battery, avoiding the technical problem of low thermal management efficiency of the vehicle battery when heat is simply dissipated through large and small cycles, achieving the technical effect of improving the thermal management efficiency of the vehicle battery, and solving the technical problem of low thermal management efficiency of the vehicle battery.

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Abstract

本申请实施例公开了一种应用于车辆领域中的车辆的电池温度的调节方法、装置和车辆。其中,该方法包括:获取车辆的电池热管理系统的初始温度;基于初始温度,确定电池热管理系统中管道和阀门的工作模式,其中,工作模式用于表征管道和阀门的开启状态或关闭状态;基于工作模式,确定电池热管理系统中双层管路的外层管路中的冷却液的含量;基于冷却液的含量,调节电池热管理系统的冷却温度。

Description

车辆的电池温度的调节方法、装置和车辆
本申请要求于2022年09月30日提交中国专利局、优先权号为202211205625.2、发明名称为“车辆的电池温度的调节方法、装置和车辆”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及车辆领域,具体而言,涉及一种车辆的电池温度的调节方法、装置和车辆。
背景技术
目前,对于车辆中的燃料电池的热管理技术分为大循环和小循环,由于运行小循环时所用管路直径较大,内部冷却液容量较多,导致低温情况下散热大,因此仍具有车辆电池的热管理效率低的技术问题。
针对上述相关技术中车辆电池的热管理效率低的技术问题,目前尚未提出有效的解决方案。
发明内容
本申请实施例提供了一种车辆的电池温度的调节方法、装置和车辆,以至少解决车辆电池的热管理效率低的技术问题。
根据本申请实施例的一个方面,提供了一种车辆的电池温度的调节方法。该方法包括:获取车辆的电池热管理系统的初始温度;基于初始温度,确定电池热管理系统中管道和阀门的工作模式,其中,工作模式用于表征管道和阀门处于开启状态或关闭状态;基于工作模式,确定电池热管理系统中双层管路的外层管路中的冷却液的含量;基于冷却液的含量,调节电池热管理系统的冷却温度。
可选地,基于工作模式,确定电池热管理系统中双层管路的外层管路中的冷却液的含量,包括:基于工作模式,控制电池热管理系统中的真空注水泵抽出外层管路的冷却液;响应于冷却液全部抽出,确定电池热管理系统的当前温度与温升速率;基于当前温度与温升速率,控制真空注水泵将冷却液注回至外层管路。
可选地,基于工作模式,控制真空注水泵抽出外层管路的冷却液,包括:响应于 工作模式为第一截止阀、第二截止阀、三通阀第一阀门、第二阀门的第一管道处于开启状态,控制真空注水泵抽出外层管路的冷却液。
可选地,该方法还包括:响应于冷却液全部抽出,关闭第一截止阀,并控制真空注水泵抽出外层管路中的空气。
可选地,基于当前温度与温升速率,控制真空注水泵将冷却液注回至外层管路,包括:响应于当前温度高于第一温度阈值且温升速率高于温升速率阈值,或响应于当前温度高于第二温度阈值,控制真空注水泵将冷却液注回至外层管路,其中,第一温度阈值小于第二温度阈值。
可选地,该方法还包括:根据电池热管理系统中的储水罐的液位,确定冷却液的抽出状况。
根据本申请实施例的另一方面,还提供了一种车辆的电池温度的调节装置。该装置可以包括:获取组件,设置为获取车辆的电池热管理系统的初始温度;第一确定组件,设置为基于初始温度,确定电池热管理系统中管道和阀门的工作模式,其中,工作模式用于表征管道和阀门的开启状态或关闭状态;第二确定组件,设置为基于工作模式,确定电池热管理系统中双层管路的外层管路中的冷却液的含量;调节组件,设置为基于冷却液的含量,调节电池热管理系统的冷却温度。
根据本申请实施例的另一方面,还提供了一种计算机可读存储介质。该计算机可读存储介质包括存储的程序,其中,在程序运行时控制计算机可读存储介质所在设备执行本申请实施例的车辆的电池温度的调节方法。
根据本申请实施例的另一方面,还提供了一种处理器。该处理器用于运行程序,其中,程序运行时执行本申请实施例的车辆的电池温度的调节方法。
根据本申请实施例的另一方面,还提供了一种车辆。该车辆用于执行本申请实施例的车辆的电池温度的调节方法。
在本申请实施例中,获取车辆的电池热管理系统的初始温度;基于初始温度,确定电池热管理系统中管道和阀门的工作模式,其中,工作模式用于表征管道和阀门处于开启状态或关闭状态;基于工作模式,确定电池热管理系统中双层管路的外层管路中的冷却液的含量;基于冷却液的含量,调节电池热管理系统的冷却温度。也就是说,本申请实施例根据车辆电池热管理系统的初始温度,以及系统中管道和阀门的不同工作模式,确定了系统外层管路中冷却液的容量。达到了调节电池热管理系统的冷却温度的目的,从而解决了车辆电池的热管理效率低的技术问题,实现了提高车辆电池的热管理效率的技术效果。
附图说明
此处所说明的附图用来提供对本申请实施例的进一步理解,构成本申请的一部分,本申请的示意性实施例及其说明用于解释本申请,并不构成对本申请的不当限定。在附图中:
图1是根据本申请实施例的一种车辆的电池温度的调节方法的流程图;
图2是根据本申请实施例的一种车辆的电池热管理系统装置的示意图;
图3是根据本申请实施例的一种车辆的电池热管理系统中的三位三通阀的示意图;
图4是根据本申请实施例的一种车辆的电池热管理系统中的双层管路剖面的示意图;
图5是根据本申请实施例的另一种车辆的电池温度的调节方法的流程图;
图6是根据本申请实施例的一种车辆的电池温度的调节装置的示意图;
图7是根据本申请实施例的一种计算机可读存储介质的结构示意图;
图8是根据本申请实施例的一种处理器的结构示意图。
具体实施方式
为了使本技术领域的人员更好地理解本申请方案,下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请一部分的实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都应当属于本申请保护的范围。
需要说明的是,本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或组件的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或组件,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或组件。
根据本申请实施例,提供了一种车辆的电池温度的调节方法的实施例,需要说明的是,在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中 执行,并且,虽然在流程图中示出了逻辑顺序,但是在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤。
图1是根据本申请实施例的一种车辆的电池温度的调节方法的流程图,如图1所示,该方法可以包括如下步骤。
步骤S102,获取车辆的电池热管理系统的初始温度。
在本申请上述步骤S102提供的技术方案中,可以通过车辆的温度传感器获取车辆的电池热管理系统的初始温度,其中,电池可以为燃料电池。车辆可以为电动汽车、混合动力汽车等,此处不做具体限制。
可选地,电池热管理方案可以包括大循环和小循环,其中,大循环可以用于表征冷却液从车辆发动机流出,全部液体经过车辆水箱散热冷却之后,再进入发动机对发动机进行冷却的过程。小循环可以用于表征冷却液从车辆发动机流出,小部分液体经过车辆水箱散热冷却之后,再进入发动机对发动机进行冷却的过程。
步骤S104,基于初始温度,确定电池热管理系统中管道和阀门的工作模式。
在本申请上述步骤S104提供的技术方案中,在获取车辆的电池热管理系统的初始温度之后,可以根据不同的温度状态,确定电池热管理系统中管道和阀门的工作模式,其中,工作模式可以用于表征管道和阀门的开启状态或关闭状态。不同的温度状态可以对应不同的工作模式。
可选地,车辆电池工作的适宜温度可以为0~40℃,温度过高或者过低都可以影响电池电芯的活性,甚至影响电芯的寿命。当电池温度处于低温状态时,可以将电池预热之后再进行充电,其中,低温状态可以用于表征电池温度处于低于0℃的状态。
可选地,图2是根据本申请实施例的一种车辆的电池热管理系统装置的示意图,如图2所示,管路204可以为燃料电池堆201连接直流变换器的管路,管路205可以为燃料电池堆201连接空气的管路,管路206可以为燃料电池堆201连接氢气的管路。
可选地,如图2所示,燃料电池堆201的冷却入口202和冷却出口203,具有温度传感器207和温度传感器209,燃料电池堆的冷却出口连接水泵208,之后连接三位三通阀211、双层管路,再连接三位三通阀210,回到冷却入口202,其中,双层管路所在管路为小循环管路,散热器217所在管路为大循环管路,在小循环外层管路上,连接截止阀212和截止阀213,截止阀213之后再连接真空注水泵214,真空注水泵214之后连接储水罐215下端,储水罐215中包含液位传感器216。
可选地,图3是根据本申请实施例的一种车辆的电池热管理系统中的三位三通阀 的示意图,如图3所示,三位三通阀可以包括管道1、管道2和管道3,其中,管道2可以包括一个管道2-1和两个管道2-2;管道1可以为冷却液入口,管道2可以为和双层管路相匹配的冷却液出口,管道3可以为普通的冷却液出口,三位三通阀整体可以为常规的三通阀集成变径阀,从而控制从管道1入口的冷却液仅通过管道2-1、管道2-2和管道3中的一管道进行出口。
可选地,如图2所示,当车辆的电池热管理系统处于低温状态,管路205连接空气并且管路206连接氢气时,确定三位三通阀210和三位三通阀211的管道2-1、截止阀212和截止阀213处于开启状态。
步骤S106,基于工作模式,确定电池热管理系统中双层管路的外层管路中的冷却液的含量。
在本申请上述步骤S106的技术方案中,在确定车辆的电池热管理系统中管道和阀门的工作模式之后,可以根据不同管道和阀门的开启状态,确定电池热管理系统中双层管路的外层管路中的冷却液的含量,其中,车辆可以通过冷却液流经发动机对车辆进行电池的热管理。
可选地,图4是根据本申请实施例的一种车辆的电池热管理系统中的双层管路剖面的示意图,如图4所示,三位三通阀的阀内径和双层管路的内层管路的径长匹配,三位三通阀的外径和双层管路的外层管路的径长匹配。
可选地,当三位三通阀的管道和截止阀处于开启状态时,真空注水泵可以将外层管路的冷却液抽取至储水罐中;基于储水罐的液面位置以及外层管路的温度状态和空气状态,可以改变截止阀的开启状态,从而反向将储水罐的冷却液注回至外层管路中。
步骤S108,基于冷却液的含量,调节电池热管理系统的冷却温度。
在本申请上述步骤S108的技术方案中,可以通过外层管路中冷却液的不同含量,对电池热管理系统的冷却温度进行调节,在完成温度调节之后,可以结合温度自动调节管道的导通状态。
本申请上述步骤S102至步骤S108,通过获取车辆的电池热管理系统的初始温度;基于初始温度,确定电池热管理系统中管道和阀门的工作模式,其中,工作模式用于表征管道和阀门处于开启状态或关闭状态;基于工作模式,确定电池热管理系统中双层管路的外层管路中的冷却液的含量;基于冷却液的含量,调节电池热管理系统的冷却温度。也就是说,本申请实施例根据车辆电池热管理系统的初始温度,以及系统中管道和阀门的不同工作模式,确定了系统外层管路中冷却液的容量,达到了调节电池热管理系统的冷却温度的目的,从而解决了车辆电池的热管理效率低的技术问题,实 现了提高车辆电池的热管理效率的技术效果。
下面对该实施例的上述方法进行进一步介绍。
作为一种可选的实施例方式,步骤S106,基于工作模式,确定电池热管理系统中双层管路的外层管路中的冷却液的含量,包括:基于工作模式,控制真空注水泵抽出外层管路的冷却液;响应于冷却液全部抽出,确定电池热管理系统的当前温度与温升速率;基于当前温度与温升速率,控制真空注水泵将冷却液注回至外层管路。
在本申请实施例中,可以基于阀门和管道的工作模式,控制系统中的真空注水泵抽取双层管路中外层管路的冷却液,当外层管路中的冷却液被全部抽出时,可以通过温度传感器对电池热管理系统的当前温度以及温度升高的速率进行确定,当系统当前温度和温升速率满足一定条件时,可以控制系统中的真空注水泵将冷却液注回至外层管路中。
可选地,如图2所示,真空注水泵214可以正向运行将外层管路的冷却液抽取至储水罐215,抽取过程中水泵208的运转转速可以达到一定数值,例如,运转转速可以为R0,此处不做具体限定。
可选地,如图2所示,当外层管路的冷却液全部抽出时,可以控制真空注水泵214对外层管路进行空气抽取,并可以控制温度传感器207、温度传感器209测量电池热管理系统的当前温度及温升速率。
作为一种可选的实施例方式,基于工作模式,控制真空注水泵抽出外层管路的冷却液,包括:响应于工作模式为第一截止阀、第二截止阀、三通阀第一阀门、第二阀门的第一管道处于开启状态,控制真空注水泵抽出外层管路的冷却液。
在本申请实施例中,当阀门和管道的开启或关闭状态为第一截止阀、第二截止阀、三通阀第一阀门、第二阀门的第一管道开启时,可以通过控制真空注水泵将双层管路中外层管路的冷却液全部抽出。
可选地,如图2所示,当三位三通阀210和三位三通阀211的管道2-1、截止阀212和截止阀213处于开启状态时,真空注水泵可以将外层管路的冷却液抽取至储水罐中,其中,第一截止阀对应截止阀212,第二截止阀对应截止阀213,三通阀第一阀门对应三位三通阀210,三通阀第二阀门对应三位三通阀211,第一管道对应管道2-1。
作为一种可选的实施例方式,该方法还包括:响应于冷却液全部抽出,关闭第一截止阀,并控制真空注水泵抽出外层管路中的空气。
在本申请实施例中,当外层管路中的冷却液全部抽出时,可以关闭第一截止阀, 并控制真空注水泵抽出外层管路中的空气,直至将外层管路抽取为真空状态。
可选地,如图2所示,根据液位传感器216对储水罐215的监测,当外层管路中的冷却液全部抽出时,可以关闭截止阀212,控制真空注水泵214对外层管路抽取真空,当抽取真空时间达到A1时,可以确定外层管路为真空状态,当外层管路为真空状态时,可以关闭截止阀213和真空注水泵214,其中,抽取真空时间可以为预设值,A1可以为10s。
可选地,当真空注水泵关闭时,可以通过温度传感器对系统当前温度进行确定,当前温度大于预设温度T1时,可以按照预定程序控制系统中的水泵转速,从而使当前温度与初始温度的差值可以在预设的温度范围内,其中,预设温度T1可以为0℃,预设的温度范围可以为6~10℃。
作为一种可选的实施例方式,基于当前温度与温升速率,控制真空注水泵将冷却液注回至外层管路,包括:响应于当前温度高于第一温度阈值且温升速率高于温升速率阈值,或响应于温度高于第二温度阈值,控制真空注水泵将冷却液注回至外层管路。
在本申请实施例中,当系统的当前温度高于第一温度阈值且温度升高速率高于温升速率阈值时,或当系统的当前温度高于第二温度阈值时,可以控制真空注水泵将冷却液注回至外层管路,其中,第一温度阈值小于第二温度阈值。
可选地,如图2所示,当电池热管理系统的当前温度大于第一温度阈值T2且温升速率大于温升速率阈值K1时,或者电池热管理系统的当前温度大于第二温度阈值T3时,可以打开截止阀213,控制真空注水泵214反向运行将储水罐中的冷却液注回至外层管路,其中,第一温度阈值T2可以为40℃,温升速率阈值K1可以为0.5℃/s,第二温度阈值T3可以为60℃。
作为一种可选的实施例方式,该方法还包括:根据电池热管理系统中的储水罐的液位,确定冷却液的抽出状况。
在本申请实施例中,可以通过液位传感器对电池热管理系统中储水罐的液位进行确定,从而根据不同液位确定外层管路中冷却液的抽出状况。
可选地,如图2所示,当真空注水泵214正向运行将外层管路中的冷却液抽取至储水罐215中,当液位传感器216监测到储水罐215的液位达到L1时,可以确定外层管路中的冷却液全部抽出,其中,L1可以为预设值,此处不做限定。
可选地,如图2所示,真空注水泵214反向运行将储水罐215中的冷却液注回外层管路的过程中,当液位传感器监测到储水罐的液位保持不变时,可以打开截止阀 212,将注水时间延长至A2,其中,A2可以为10s。
在本申请实施例中,当注水时间延长至A2时,可以关闭真空注水泵,根据燃料电池堆的目标运行温度,结合温度传感器,对三位三通阀的工作模式进行自动调节。
可选地,如图2所示,关闭真空注水泵214之后,可以根据燃料电池堆201的目标运行温度,结合温度传感器207、209,自动调节三位三通阀210、211中的管道2-1开启,或者控制管道2-1和管道2-2同时开启,或者控制大循环导通。
本申请实施例根据车辆电池热管理系统的初始温度,以及系统中管道和阀门的不同工作模式,确定了系统外层管路中冷却液的容量,达到了调节电池热管理系统的冷却温度的目的,从而解决了车辆电池的热管理效率低的技术问题,实现了提高车辆电池的热管理效率的技术效果。
下面结合优选的实施方式对本申请实施例的技术方案进行举例说明。
在低温情况下,为了使车辆的燃料电池尽快升高温度,要求车辆热管理系统中的冷却路在整机启动过程中参与循环的冷却液含量少、整机散热小,现有技术中的大、小循环可以解决车辆燃料电池的热管理问题,但小循环仍存在管路直径大、内部冷却液含量多且低温情况下散热较多等技术问题。
在一种相关技术中,提出了一种燃料电池发动机热管理控制方法,该方法包括:发动机低温启动阶段,控制模块控制水泵的运行,以驱动正温度系数热敏电阻(Positive temperature coefficient,简称为PTC)加热回路中的冷却液流经PTC加热器,并控制PTC加热器对冷却液进行加热。发动机运行阶段,控制模块分别对水泵、节温器、散热风扇、PTC加热器、以及中冷器进行控制,以对燃料电池发动机进行热管理。从而达到提高热管理系统响应速度、增强热管理系统可靠性的目的,但该方法未考虑小循环时冷却液含量较多,从而导致低温情况下启动耗时较久的技术问题。
在另一种相关技术中,提出了一种氢燃料电池热管理系统,该系统包括水泵、节温器、去离子器、中冷器、PTC、冷却模块、电磁阀、燃料电池和膨胀水箱,由上述不同的部件构成第一回路、第二回路和第三回路。根据不同情况,上述三个回路分别进行工作,从而使燃料电池在低温启动前对冷却液进行预加热,在正常工作时提供比较好的冷却效果,有效提高了燃料电池的工作效率传递,该系统包括三个回路,小循环包括去离子器,大循环包括散热器,同时与电堆并联的第三回路包括PTC。但未考虑小循环和额外增加的第三回路所增加的冷却液含量,导致低温情况下启动耗时较久的技术问题。
在另一种相关技术中,提出了一种商用车燃料电池热管理系统,该系统包括控制 器、氢燃料电池系统、电控三通阀、电加热器、散热器、变频风扇、补水箱、变频水泵、去离子装置、节流阀、颗粒物过滤器、温度传感器Ⅰ、温度传感器Ⅱ。在车辆低温启动时,热管理系统的冷却液流经小循环实现快速升温,确保短时间冷却液温度达到氢燃料电池反应最佳温度范围,从而提高了氢燃料电池的反应效率。当冷却液温度达到设定最佳反应温度范围后,通过电控三通阀逐渐将冷却液由小循环切换到大循环,从而达到更好的冷却效果,使氢燃料电池处于最佳反应温度范围以提高其反应效率,同时降低了对电池的损害,延长了电池的使用寿命。该系统包括三个回路,小循环包括PTC,大循环包括散热器,同时水泵前后端有节流阀和去离子器。但未考虑小循环和去离子器路所增加的冷却液含量,导致低温情况下启动耗时较久的技术问题。
为解决上述问题,本申请实施例提出了一种燃料电池热管理系统及低温控制方法,该方法创造性应用变径阀、双层管路和真空泵。当电池热管理系统低温小循环工作时,将系统外层管路中的冷却液抽入储水罐中,并对外层管路抽取真空,从而减少热量损失并减小参与循环的冷却液量,达到了缩短温度升高时间的目的。当温度升高到工作温度时,再将外层管路充满冷却液,从而进入大小循环可控的热管理控制方式。其中,双层管路可以通过对外层管路抽取真空从而减少热量散失外,还可以避免由于多条单独管路导致占用过多空间的情况。
下面对本申请实施例进行进一步地介绍。
图5是根据本申请实施例的另一种车辆的电池温度的调节方法的流程图,如图5所示,该方法可以包括以下步骤。
步骤S502,确定管道和阀门的工作模式。
在本申请实施例中,可以通过温度传感器获取车辆的电池热管理系统的初始温度,根据不同的温度状态确定电池热管理系统中管道和阀门的工作模式,其中,工作模式可以用于表征管道和阀门的开启状态或关闭状态,不同的温度状态可以对应不同的工作模式。
可选地,电池热管理方案可以包括大循环和小循环,其中,大循环可以用于表征冷却液从车辆发动机流出,全部液体经过车辆水箱散热冷却之后,再进入发动机对发动机进行冷却的过程;小循环可以用于表征冷却液从车辆发动机流出,小部分液体经过车辆水箱散热冷却之后,再进入发动机对发动机进行冷却的过程。
可选地,车辆电池工作的适宜温度可以为0~40℃,温度过高或者过低都可以影响电池电芯的活性,甚至影响电芯的寿命,当电池温度处于低温状态时,可以将电池预热之后再进行充电,其中,低温状态可以用于表征电池温度处于低于0℃的状态。
可选地,如图2所示,管路204可以为燃料电池堆201连接直流变换器的管路,管路205可以为燃料电池堆201连接空气的管路,管路206可以为燃料电池堆201连接氢气的管路。
可选地,如图2所示,燃料电池堆201的冷却入口202和冷却出口203,具有温度传感器207和温度传感器209,燃料电池堆的冷却出口连接水泵208,之后连接三位三通阀211、双层管路,再连接三位三通阀210,回到冷却入口202,其中,双层管路所在管路为小循环管路,散热器217所在管路为大循环管路,在小循环外层管路上,连接截止阀212和截止阀213,截止阀213之后再连接真空注水泵214,真空注水泵214之后连接储水罐215下端,储水罐215中包含液位传感器216。
可选地,图3是根据本申请实施例的一种车辆的电池热管理系统中的三位三通阀的示意图,如图3所示,三位三通阀可以包括管道1、管道2和管道3,其中,管道2可以包括一个管道2-1和两个管道2-2;管道1可以为冷却液入口,管道2可以为和双层管路相匹配的冷却液出口,管道3可以为普通的冷却液出口,三位三通阀整体可以为常规的三通阀集成变径阀,从而控制从管道1入口的冷却液仅通过管道2-1、管道2-2和管道3中的一管道进行出口。
可选地,图4是根据本申请实施例的一种车辆的电池热管理系统中的双层管路剖面的示意图,如图4所示,三位三通阀的阀内径和双层管路的内层管路的径长匹配,三位三通阀的外径和双层管路的外层管路的径长匹配。
可选地,如图2所示,当车辆的电池热管理系统处于低温状态,管路205连接空气并且管路206连接氢气时,确定三位三通阀210和三位三通阀211的管道2-1、截止阀212和截止阀213处于开启状态。
可选地,如图2所示,当三位三通阀210和三位三通阀211的管道2-1、截止阀212和截止阀213处于开启状态时,真空注水泵可以将外层管路的冷却液抽取至储水罐中,其中,第一截止阀对应截止阀212,第二截止阀对应截止阀213,三通阀第一阀门对应三位三通阀210,三通阀第二阀门对应三位三通阀211,第一管道对应管道2-1。
可选地,如图2所示,真空注水泵214可以正向运行将外层管路的冷却液抽取至储水罐215,抽取过程中水泵208的运转转速可以达到一定数值,例如,运转转速可以为R0,此处不作具体限定。
步骤S504,监测储水罐的液位。
在本申请实施例中,可以通过液位传感器对电池热管理系统中储水罐的液位进行确定,从而根据不同液位确定外层管路中冷却液的抽出状况。
可选地,如图2所示,当真空注水泵214正向运行将外层管路中的冷却液抽取至储水罐215中,当液位传感器216监测到储水罐215的液位达到L1时,可以确定外层管路中的冷却液全部抽出,其中,L1可以为预设值,此处不做限定。
步骤S506,真空注水泵抽取真空。
在本申请实施例中,当外层管路中的冷却液全部抽出时,可以关闭第一截止阀,并控制真空注水泵抽出外层管路中的空气,直至将外层管路抽取为真空状态。
可选地,如图2所示,根据液位传感器216对储水罐215的监测,当外层管路中的冷却液全部抽出时,可以关闭截止阀212,控制真空注水泵214对外层管路抽取真空,当抽取真空时间达到A1时,可以确定外层管路为真空状态,当外层管路为真空状态时,可以关闭截止阀213和真空注水泵214,其中,抽取真空时间可以为预设值,A1可以为10s。
可选地,当真空注水泵关闭时,可以通过温度传感器对系统当前温度进行确定,当前温度大于预设温度T1时,可以按照预定程序控制系统中的水泵转速,从而使当前温度与初始温度的差值可以在预设的温度范围内,其中,预设温度T1可以为0℃,预设的温度范围可以为6~10℃。
步骤S508,确定电池热管理系统的温度。
在本申请实施例中,当外层管路中的冷却液被全部抽出时,可以通过温度传感器对电池热管理系统的当前温度以及温度升高的速率进行确定。
步骤S510,真空注水泵反向运行将冷却液注回外层管路。
在本申请实施例中,当系统当前温度和温升速率满足一定条件时,可以控制系统中的真空注水泵将冷却液注回至外层管路中。
可选地,如图2所示,当电池热管理系统的当前温度大于第一温度阈值T2且温升速率大于温升速率阈值K1时,或者电池热管理系统的当前温度大于第二温度阈值T3时,可以打开截止阀213,控制真空注水泵214反向运行将储水罐中的冷却液注回至外层管路,其中,第一温度阈值T2可以为40℃,温升速率阈值K1可以为0.5℃/s,第二温度阈值T3可以为60℃。
步骤S512,自动调节管道和阀门的工作模式。
在本申请实施例中,如图2所示,真空注水泵214反向运行将储水罐215中的冷却液注回外层管路的过程中,当液位传感器监测到储水罐的液位保持不变时,可以打 开截止阀212,将注水时间延长至A2,其中,A2可以为10s。
可选地,当注水时间延长至A2时,可以关闭真空注水泵,根据燃料电池堆的目标运行温度,结合温度传感器,对三位三通阀的工作模式进行自动调节。
可选地,如图2所示,关闭真空注水泵214之后,可以根据燃料电池堆201的目标运行温度,结合温度传感器207、209,自动调节三位三通阀210、211中的管道2-1开启,或者控制管道2-1和管道2-2同时开启,或者控制大循环导通。
本申请实施例根据车辆电池热管理系统的初始温度,以及系统中管道和阀门的不同工作模式,确定了系统外层管路中冷却液的容量,达到了调节电池热管理系统的冷却温度的目的,从而解决了车辆电池的热管理效率低的技术问题,实现了提高车辆电池的热管理效率的技术效果。
根据本申请实施例,还提供了一种车辆的电池温度的调节装置。需要说明的是,该车辆的电池温度的调节装置可以设置为执行实施例1中的车辆的电池温度的调节方法。
图6是根据本申请实施例的一种车辆的电池温度的调节装置的示意图,如图6所示,该车辆的电池温度的调节装置600可以包括:获取组件602、第一确定组件604、第二确定组件606和调节组件608。
获取组件602,设置为获取车辆的电池热管理系统的初始温度。
第一确定组件604,设置为基于初始温度,确定电池热管理系统中管道和阀门的工作模式,其中,工作模式用于表征管道和阀门的开启状态或关闭状态。
第二确定组件606,设置为基于工作模式,确定电池热管理系统中双层管路的外层管路中的冷却液的含量。
调节组件608,设置为基于冷却液的含量,调节电池热管理系统的冷却温度。
此处需要说明的是,上述获取组件602、第一确定组件604、第二确定组件606和调节组件608可以作为装置的一部分运行在终端中,可以通过终端中的处理器来执行上述模块实现的功能,终端也可以是智能手机(如Android手机、iOS手机等)、平板电脑、掌声电脑以及移动互联网设备(Mobile Internet Devices,简称为MID)、PAD等终端设备。
可选地,第二确定组件606包括:第一控制组件,设置为基于工作模式,控制真空注水泵抽出外层管路的冷却液;第三确定组件,设置为响应于冷却液全部抽出,确定电池热管理系统的温升速率;第二控制组件,设置为基于当前温度与温升速率,控 制真空注水泵将冷却液注回至外层管路。
此处需要说明的是,上述第一控制组件、第三确定组件和第二控制组件可以作为装置的一部分运行在终端中,可以通过终端中的处理器来执行上述组件实现的功能。
可选地,第一控制组件包括:第三控制组件,设置为响应于工作模式为第一截止阀、第二截止阀、三通阀第一阀门、第二阀门和第一管道处于开启状态,控制真空注水泵抽出外层管路的冷却液。
此处需要说明的是,上述第三控制组件可以作为装置的一部分运行在终端中,可以通过终端中的处理器来执行上述组件实现的功能。
可选地,该装置还包括:第四控制组件,设置为响应于冷却液全部抽出,关闭第一截止阀,并控制真空注水泵抽出外层管路中的空气。
此处需要说明的是,上述第四控制组件可以作为装置的一部分运行在终端中,可以通过终端中的处理器来执行上述组件实现的功能。
可选地,第二控制组件包括:第五控制组件,设置为响应于当前温度高于第一温度阈值且温升速率高于温升速率阈值,或响应于温度高于第二温度阈值,控制真空注水泵将冷却液注回至外层管路,其中,第一温度阈值小于第二温度阈值。
此处需要说明的是,上述第五控制组件可以作为装置的一部分运行在终端中,可以通过终端中的处理器来执行上述组件实现的功能。
可选地,该装置还包括:第四确定组件,用于根据电池热管理系统中的储水罐的液位,确定冷却液的抽出状况。
此处需要说明的是,上述第四确定组件可以作为装置的一部分运行在终端中,可以通过终端中的处理器来执行上述组件实现的功能。
在本申请实施例中,通过获取组件,获取车辆的电池热管理系统的初始温度;通过第一确定组件,基于初始温度,确定电池热管理系统中管道和阀门的工作模式,其中,工作模式用于表征管道和阀门的开启状态或关闭状态;通过第二确定组件,基于工作模式,确定电池热管理系统中双层管路的外层管路中的冷却液的含量;通过调节组件,基于冷却液的含量,调节电池热管理系统的冷却温度。也就是说,本申请根据车辆电池热管理系统的初始温度与系统中管道和阀门的不同工作模式,确定了系统外层管路中冷却液的容量,达到了调节电池热管理系统的冷却温度的目的,从而解决了车辆电池的热管理效率低的技术问题,实现了提高车辆电池的热管理效率的技术效果。
本申请实施例所提供的各个功能组件可以在车辆的电池温度的调节方法或者类似的与运算装置中运算,也可以作为计算机可读存储介质的一部分进行存储。
图7是根据本申请实施例的一种计算机可读存储介质的结构示意图,如图7所示,提供了根据本申请的实时方式的程序产品70,其上存储由计算机程序,计算机程序被处理器执行时实现如下步骤的程序代码:
获取车辆的电池热管理系统的初始温度;
基于初始温度,确定电池热管理系统中管道和阀门的工作模式,其中,工作模式用于表征管道和阀门处于开启状态或关闭状态;
基于工作模式,确定电池热管理系统中双层管路的外层管路中的冷却液的含量;
基于冷却液的含量,调节电池热管理系统的冷却温度。
可选地,计算机程序还被处理器执行时实现如下步骤的程序代码:基于工作模式,确定电池热管理系统中双层管路的外层管路中的冷却液的含量,包括:基于工作模式,控制电池热管理系统中的真空注水泵抽出外层管路的冷却液;响应于冷却液全部抽出,确定电池热管理系统的当前温度与温升速率;基于当前温度与温升速率,控制真空注水泵将冷却液注回至外层管路。
可选地,计算机程序还被处理器执行时实现如下步骤的程序代码:基于工作模式,控制真空注水泵抽出外层管路的冷却液,包括:响应于工作模式为第一截止阀、第二截止阀、三通阀第一阀门、第二阀门的第一管道处于开启状态,控制真空注水泵抽出外层管路的冷却液。
可选地,计算机程序还被处理器执行时实现如下步骤的程序代码:该方法还包括:响应于冷却液全部抽出,关闭第一截止阀,并控制真空注水泵抽出外层管路中的空气。
可选地,计算机程序还被处理器执行时实现如下步骤的程序代码:基于当前温度与温升速率,控制真空注水泵将冷却液注回至外层管路,包括:响应于当前温度高于第一温度阈值且温升速率高于温升速率阈值,或响应于当前温度高于第二温度阈值,控制真空注水泵将冷却液注回至外层管路,其中,第一温度阈值小于第二温度阈值。
可选地,计算机程序还被处理器执行时实现如下步骤的程序代码:根据电池热管理系统中的储水罐的液位,确定冷却液的抽出状况。
可选地,在本申请实施例中,计算机可读存储介质还可以被设置为车辆的电池温度的调节方法提供的各种优选的或可选的方法步骤的程序代码。
可选地,在本申请实施例中的具体示例可以参考上述实施例中所描述的实例,本实施例在此不再赘述。
计算机可读存储介质可以包括在基带中或者作为载波一部分传播的数据信号,其中承载了可读程序代码。这种传播的数据信号可以采用多种形式,包括但不限于电磁信号、光信号或上述的任意合适的组合。非易失性存储介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。
计算机可读存储介质中包含的程序代码可以用任何适当的介质传输,包括但不限于无线、有线、光缆、射频等等,或者上述的任意合适的组合。
根据本申请实施例,该提供了一种处理器。图8是根据本申请实施例的一种处理器的结构示意图。如图8所示,该处理器80设置为运行程序,其中,所述程序运行时执行本申请实施例所述的车辆的电池温度的调节方法。
在本申请实施例中,上述处理器80可以执行车辆中电池温度的调节方法的运行程序。
可选地,在本申请实施例中,处理器80可以被设置为执行下述步骤:
获取车辆的电池热管理系统的初始温度;
基于初始温度,确定电池热管理系统中管道和阀门的工作模式,其中,工作模式用于表征管道和阀门处于开启状态或关闭状态;
基于工作模式,确定电池热管理系统中双层管路的外层管路中的冷却液的含量;
基于冷却液的含量,调节电池热管理系统的冷却温度。
可选地,处理器80可以还被设置为执行下述步骤:基于工作模式,确定电池热管理系统中双层管路的外层管路中的冷却液的含量,包括:基于工作模式,控制电池热管理系统中的真空注水泵抽出外层管路的冷却液;响应于冷却液全部抽出,确定电池热管理系统的当前温度与温升速率;基于当前温度与温升速率,控制真空注水泵将冷却液注回至外层管路。
可选地,处理器80可以还被设置为执行下述步骤:基于工作模式,控制真空注水泵抽出外层管路的冷却液,包括:响应于工作模式为第一截止阀、第二截止阀、三通阀第一阀门、第二阀门的第一管道处于开启状态,控制真空注水泵抽出外层管路的冷却液。
可选地,处理器80可以还被设置为执行下述步骤:该方法还包括:响应于冷却液 全部抽出,关闭第一截止阀,并控制真空注水泵抽出外层管路中的空气。
可选地,处理器80可以还被设置为执行下述步骤:基于当前温度与温升速率,控制真空注水泵将冷却液注回至外层管路,包括:响应于当前温度高于第一温度阈值且温升速率高于温升速率阈值,或响应于当前温度高于第二温度阈值,控制真空注水泵将冷却液注回至外层管路,其中,第一温度阈值小于第二温度阈值。
可选地,处理器80可以还被设置为执行下述步骤:根据电池热管理系统中的储水罐的液位,确定冷却液的抽出状况。
根据本申请实施例,还提供了一种车辆,该车辆用于执行本申请实施例1中的车辆的电池温度的调节方法。
上述本申请实施例序号仅仅为了描述,不代表实施例的优劣。
在本申请的上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。
在本申请所提供的几个实施例中,应该理解到,所揭露的技术内容,可通过其它的方式实现。其中,以上所描述的装置实施例仅仅是示意性的,例如所述组件的划分,可以为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个组件或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,组件或模块的间接耦合或通信连接,可以是电性或其它的形式。
所述作为分离部件说明的组件可以是或者也可以不是物理上分开的,作为组件显示的部件可以是或者也可以不是物理组件,即可以位于一个地方,或者也可以分布到多个组件上。可以根据实际的需要选择其中的部分或者全部组件来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能组件可以集成在一个处理组件中,也可以是各个组件单独物理存在,也可以两个或两个以上组件集成在一个组件中。上述集成的组件既可以采用硬件的形式实现,也可以采用软件功能组件的形式实现。
所述集成的组件如果以软件功能组件的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可为个人计算机、服务器或者网络设备等)执行本发明各个实施 例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。
工业实用性
本申请实施例提供的方案可以应用于车辆的电池温度的调节的过程中,获取车辆的电池热管理系统的初始温度;基于初始温度,确定电池热管理系统中管道和阀门的工作模式,其中,工作模式用于表征管道和阀门处于开启状态或关闭状态;基于工作模式,确定电池热管理系统中双层管路的外层管路中的冷却液的含量;基于冷却液的含量,调节电池热管理系统的冷却温度。上述方案这种调节电池温度的机制能够依据车辆中热管理系统中的管道和阀门的工作情况以及电池的初始温度来调节冷却液的含量以及流速等,来降低电池的温度,避免了单纯通过大循环和小循环来进行散热时候存在车辆电池的热管理效率低的技术问题,实现了提高车辆电池的热管理效率的技术效果,解决了车辆电池的热管理效率低的技术问题。

Claims (15)

  1. 一种车辆的电池温度的调节方法,包括:
    获取车辆的电池热管理系统的初始温度;
    基于所述初始温度,确定所述电池热管理系统中管道和阀门的工作模式,其中,所述工作模式用于表征所述管道和阀门处于开启状态或关闭状态;
    基于所述工作模式,确定所述电池热管理系统中双层管路的外层管路中的冷却液的含量;
    基于所述冷却液的含量,调节所述电池热管理系统的冷却温度。
  2. 根据权利要求1所述的车辆的电池温度的调节方法,其中,基于所述工作模式,确定所述电池热管理系统中双层管路的外层管路中的冷却液的含量,包括:
    基于所述工作模式,控制所述电池热管理系统中的真空注水泵抽出所述外层管路的所述冷却液;
    响应于所述冷却液全部抽出,确定所述电池热管理系统的当前温度与温升速率;
    基于所述当前温度与所述温升速率,控制所述真空注水泵将所述冷却液注回至所述外层管路。
  3. 根据权利要求2所述的车辆的电池温度的调节方法,其中,基于所述工作模式,控制真空注水泵抽出所述外层管路的所述冷却液,包括:
    响应于所述工作模式为第一截止阀、第二截止阀、三通阀第一阀门、第二阀门的第一管道处于开启状态,控制所述真空注水泵抽出所述外层管路的所述冷却液。
  4. 根据权利要求3所述的车辆的电池温度的调节方法,其中,所述方法还包括:
    响应于所述冷却液全部抽出,关闭所述第一截止阀,并控制所述真空注水泵抽出所述外层管路中的空气。
  5. 根据权利要求2所述的车辆的电池温度的调节方法,其中,基于所述当前温度与所述温升速率,控制真空注水泵将所述冷却液注回至所述外层管路,包括:
    响应于所述当前温度高于第一温度阈值且所述温升速率高于温升速率阈值, 或响应于所述当前温度高于第二温度阈值,控制真空注水泵将所述冷却液注回至所述外层管路,其中,所述第一温度阈值小于所述第二温度阈值。
  6. 根据权利要求2所述的车辆的电池温度的调节方法,其中,所述方法还包括:
    根据所述电池热管理系统中的储水罐的液位,确定所述冷却液的抽出状况。
  7. 一种车辆的电池温度的调节装置,其中,包括:
    获取组件,设置为获取车辆的电池热管理系统的初始温度;
    第一确定组件,设置为基于所述初始温度,确定所述电池热管理系统中管道和阀门的工作模式,其中,所述工作模式用于表征所述管道和阀门处于开启状态或关闭状态;
    第二确定组件,设置为基于所述工作模式,确定所述电池热管理系统中双层管路的外层管路中的冷却液的含量;
    调节组件,用于设置为基于所述冷却液的含量,调节所述电池热管理系统的冷却温度。
  8. 一种计算机可读存储介质,其中,所述计算机可读存储介质包括存储的程序,其中,在所述程序运行时控制所述计算机可读存储介质所在设备执行权利要求1至6中任意一项所述的车辆的电池温度的调节方法。
  9. 一种处理器,其中,所述处理器设置为运行程序,其中,所述程序运行时执行权利要求1至6中任意一项所述的车辆的电池温度的调节方法。
  10. 一种车辆,其中,所述车辆设置为执行权利要求1至6中任意一项所述的车辆的电池温度的调节方法。
  11. 根据权利要求1所述的车辆的电池温度的调节方法,其中,所述电池热管理系统至少包括第一截止阀、第二截止阀、三通阀第一阀门、第二阀门的第一管道、储水罐、真空注水泵和温度和温度传感器。
  12. 根据权利要求1所述的车辆的电池温度的调节方法,其中,基于所述工作模式,控制真空注水泵抽出所述外层管路的所述冷却液,包括:
    响应于所述工作模式为第一截止阀、第二截止阀、三通阀第一阀门、第二阀门的第一管道处于开启状态,控制真空注水泵抽出所述外层管路的所述冷却液,并存储至储水罐;
    响应于所述冷却液全部处于所述储水罐,控制所述真空注水泵抽出所述外层 管路中的空气,并确定所述电池热管理系统的当前温度与温升速率;
    基于所述当前温度与所述温升速率,控制所述真空注水泵将所述冷却液从所述储水罐注回至所述外层管路。
  13. 根据权利要求4所述的车辆的电池温度的调节方法,其中,在响应于所述冷却液全部抽出,关闭所述第一截止阀,并控制所述真空注水泵抽出所述外层管路中的空气之后,所述方法还包括:
    控制所述真空注水泵将所述外层管路抽为真空状态;
    响应于所述外层管路为所述真空状态,控制所述第二截止阀与所述真空注水泵关闭。
  14. 根据权利要求13所述的车辆的电池温度的调节方法,其中,在响应于所述外层管路为所述真空状态,控制所述第二截止阀与所述真空注水泵关闭之后,所述方法还包括:
    响应于所述真空注水泵关闭,通过所述电池热管理系统中的温度传感器对所述当前温度进行检测。
  15. 根据权利要求6所述的车辆的电池温度的调节方法,其中,根据所述电池热管理系统中的储水罐的液位,确定所述冷却液的抽出状况,包括:
    响应于所述真空注水泵正向运行,且所述储水罐中的液位达到液位阈值,确定所述抽出状况为所述冷却液全部抽出,其中,所述正向运行用于表示将所述外层管路的冷却液抽取至所述储水罐;
    所述方法还包括:响应于所述真空注水泵反向运行,且所述储水罐中的液位保持不变,控制第一截止阀开启来延长所述冷却液的注水时间,其中,所述反向运行用于表示将所述冷却液注回所述外层管路。
PCT/CN2023/121717 2022-09-30 2023-09-26 车辆的电池温度的调节方法、装置和车辆 WO2024067632A1 (zh)

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