WO2023098079A1 - Procédé de commande pour système de gestion de température de véhicule et système de gestion de température - Google Patents

Procédé de commande pour système de gestion de température de véhicule et système de gestion de température Download PDF

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Publication number
WO2023098079A1
WO2023098079A1 PCT/CN2022/103703 CN2022103703W WO2023098079A1 WO 2023098079 A1 WO2023098079 A1 WO 2023098079A1 CN 2022103703 W CN2022103703 W CN 2022103703W WO 2023098079 A1 WO2023098079 A1 WO 2023098079A1
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WIPO (PCT)
Prior art keywords
temperature
battery
water
control valve
electric control
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PCT/CN2022/103703
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English (en)
Chinese (zh)
Inventor
罗荣邦
Original Assignee
青岛海尔空调器有限总公司
青岛海尔空调电子有限公司
海尔智家股份有限公司
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Publication of WO2023098079A1 publication Critical patent/WO2023098079A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—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
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • 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
    • 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

Definitions

  • the invention relates to the technical field of temperature management, and specifically provides a control method and the temperature management system of a vehicle temperature management system.
  • the temperature management system of the existing vehicle is not very effective in managing the temperature of the battery.
  • the present invention aims to solve the above-mentioned technical problem, that is, to solve the problem that the existing temperature management system of the vehicle has an unsatisfactory management effect on the temperature of the battery.
  • the present invention provides a method for controlling a temperature management system of a vehicle.
  • the temperature management system includes an air conditioner, a heat exchange device, a water-cooled radiator, and a battery. Electrically connected, the water-cooled radiator is arranged close to the battery so as to cool down and/or heat up the battery, both ends of the heat exchange device communicate with the air conditioner through refrigerant pipelines, and the heat exchange
  • the device is arranged in parallel with the evaporator of the air conditioner installed in the cab, and the two ends of the heat exchange device are also communicated with the two ends of the water-cooled radiator through the cooling water pipeline, so that the cooling water can be cooled by the refrigerant and/or to raise the temperature
  • the refrigerant pipeline is provided with a first electric control valve
  • the first electric control valve is used to control the on-off state of the refrigerant pipeline
  • the cooling water pipeline is provided with a water pump, so
  • the control method includes: acquiring the temperature of the battery; selectively opening the first electric control
  • the step of "selectively opening the first electric control valve and operating the air conditioner and the water pump according to the temperature” specifically includes: compare the temperature with a first preset temperature; if the temperature is greater than the first preset temperature, open the first electric control valve and make the air conditioner run in cooling mode and make the water pump run.
  • the step of "selectively opening the first electric control valve and operating the air conditioner and the water pump according to the temperature” further includes: If the temperature is not greater than the first preset temperature, compare the temperature with a second preset temperature; if the temperature is lower than the second preset temperature, open the first electric control valve And make the air conditioner run in heating mode and make the water pump run; wherein, the second preset temperature is lower than the first preset temperature.
  • the control method further includes: acquiring the temperature of the compressor of the air conditioner current state; if the current state of the compressor is a stop state, start the compressor and keep the fan of the evaporator in a stop state.
  • control method after performing the step of "opening the first electric control valve", the control method further includes: The opening degree of the first electric control valve is adjusted.
  • the step of "adjusting the opening degree of the first electric control valve according to the temperature and the set target temperature” specifically includes: calculating the relationship between the temperature and the set target temperature. The difference between the set target temperatures; performing PID adjustment on the opening degree of the first electric control valve according to the difference.
  • the heat exchange device includes a water exchange tank and a heat exchanger arranged in the water exchange tank, and the heat exchanger communicates with the refrigerant pipeline through the The evaporators are arranged in parallel, the two ends of the water exchange tank communicate with the two ends of the water cooling radiator through the cooling water pipeline, the water exchange tank is provided with a drain pipe, and the drain pipe is provided with a second An electric control valve, the second electric control valve is used to control the on-off state of the drain pipe, and the control method further includes: obtaining the temperature of the cooling water in the heat exchange tank; , to selectively open the second electric control valve.
  • the step of "selectively opening the second electric control valve according to the temperature of the cooling water” specifically includes: setting the temperature of the cooling water to comparing with the third preset temperature; if the temperature of the cooling water is lower than the third preset temperature, the second electric control valve is opened.
  • the flow direction of the refrigerant in the heat exchange device is opposite to the flow direction of the cooling water.
  • the present invention also provides a temperature management system, including a controller configured to execute the above-mentioned control method.
  • the temperature management system of the vehicle of the present invention includes an air conditioner, a heat exchange device, a water-cooled radiator and a battery, wherein the battery is electrically connected to the electric device of the vehicle, and the air conditioner includes a connected compressor , condenser and evaporator, the evaporator is set in the cab of the vehicle, the water-cooled radiator is set close to the battery in order to cool down and/or heat up the battery, the heat exchange device is set in parallel with the evaporator through the refrigerant pipeline, and the heat exchange The two ends of the device are also communicated with the two ends of the water-cooled radiator through the cooling water pipeline, so that the cooling water can be cooled and/or heated by the refrigerant.
  • the air conditioner includes a connected compressor , condenser and evaporator
  • the evaporator is set in the cab of the vehicle
  • the water-cooled radiator is set close to the battery in order to cool down and/or heat up the battery
  • the heat exchange device is set in parallel with
  • the refrigerant pipeline is provided with a first electric control valve.
  • a water pump is arranged on the cooling water pipeline.
  • the control method includes: obtaining the temperature of the battery; and selectively opening the first electric control valve according to the temperature to make the air conditioner and the water pump run.
  • the vicinity of the battery can not only cool down the battery, but also heat up the battery, thereby improving the management effect of the temperature management system on the battery temperature, and can also prevent the refrigerant from approaching the battery, which improves safety; in addition, the temperature of the battery can be Determine whether it is necessary to cool down and/or heat up the battery, so that the cooling water can be cooled and/or heated up through the heat exchange device, and then the battery can be cooled down and/or warmed up in time through the water-cooled radiator to further improve the management of the battery temperature Effect, for example, when it is judged by the temperature of the battery that the temperature of the battery is too high, the first electric control valve can be opened to connect the heat exchange device to the air conditioner, and when the air conditioner is running in cooling mode, the heat exchange device can The cooling water is cooled, and then the battery is cooled through the water-cooled radiator; and/or, when the temperature of the battery determines that the temperature of the battery is too low, the first electric control valve can be opened to connect the heat exchange device to the air
  • the control method of the present invention further includes: obtaining the current state of the compressor of the air conditioner; The machine starts running and keeps the evaporator fan at a stop.
  • the step of "adjusting the opening degree of the first electric control valve according to the temperature and the set target temperature” specifically includes: calculating the difference between the temperature and the set temperature; The opening degree is adjusted by PID. Through such setting, the opening degree of the first electric control valve can be adjusted more precisely, thereby further improving the control effect on the battery temperature.
  • the flow direction of the refrigerant in the heat exchange device is opposite to the flow direction of the cooling water.
  • the temperature management system further provided by the present invention on the basis of the above-mentioned technical solution adopts the above-mentioned control method, and further possesses the technical effects of the above-mentioned control method.
  • the vehicle of the present invention The advanced temperature management system can manage the temperature of the battery more effectively.
  • FIG. 1 is a schematic structural view of Embodiment 1 of the vehicle temperature management system of the present invention.
  • Fig. 2 is a schematic structural diagram of Embodiment 2 of the vehicle temperature management system of the present invention.
  • Fig. 3 is a flow chart of the control method of the temperature management system of the vehicle of the present invention.
  • FIG. 4 is a flow chart of an embodiment of the control method of the vehicle temperature management system of the present invention.
  • step S210 and step S220 of the control method of the present invention can also be exchanged.
  • the present invention provides a control method and temperature management system of a vehicle temperature management system, aiming to cool down and/or heat up the battery through the vehicle's air conditioner and water-cooled radiator, so as to improve the management effect on the battery temperature.
  • Fig. 1 is the structural representation of the first embodiment of the temperature management system of the vehicle of the present invention
  • Fig. 2 is the structural representation of the second embodiment of the temperature management system of the vehicle of the present invention.
  • the temperature management system of the vehicle of the present invention comprises an air conditioner, a heat exchange device 4, a water-cooled radiator 110 and a battery 5, wherein the battery 5 is electrically connected with the electric devices of the vehicle, and the air conditioner includes Connected compressor 1, condenser 2 and evaporator 3, the evaporator 3 is arranged in the cab of the vehicle, the water-cooled radiator 110 is arranged close to the battery 5, so as to cool down and/or heat up the battery 5, and the heat exchange device 4 passes the refrigeration
  • the refrigerant pipeline (the first refrigerant pipeline 91 and the second refrigerant pipeline 92) is arranged in parallel with the evaporator 3, and the two ends of the heat exchange device 4 also pass through the cooling water pipeline (the first cooling water pipeline 130 and the second cooling water pipeline 130).
  • the cooling water pipeline 140) communicates with both ends of the water cooling radiator 110, so as to cool down and/or raise the temperature of the cooling water through the refrigerant.
  • the heat exchange device 4 communicates with the water-cooled radiator 110 through the cooling water pipeline, the heat exchange device 4 communicates with the air conditioner of the vehicle through the refrigerant pipeline, and the water-cooled radiator 110 is placed on the battery. 5 near.
  • the high-temperature and high-pressure refrigerant discharged from the compressor 1 first enters the condenser 2, and after being throttled by the condenser 2, the refrigerant becomes a low-temperature and low-pressure refrigerant.
  • the agent pipeline 91 flows into the heat exchange device 4, and exchanges heat with the cooling water in the heat exchange device 4 when passing through the heat exchange device 4, and cools the cooling water, and the cooled cooling water flows into the water cooling and heat dissipation along the cooling water pipeline.
  • the cooling water flows through the water-cooling radiator 110, the temperature near the water-cooling radiator 110 is reduced, thereby reducing the temperature of the battery 5, and the cooling water flowing out of the water-cooling radiator 110 flows into the heat exchange device along the cooling water pipeline 4. Exchanging heat with the refrigerant flowing through the heat exchange device 4 , thereby improving the cooling effect on the battery 5 .
  • the high-temperature and high-pressure refrigerant discharged from the compressor 1 first enters the heat exchange device 4 along the second refrigerant pipeline 92, and when it flows through the heat exchange device 4, it is mixed with the cooling water in the heat exchange device 4. Heat exchange occurs, the temperature of the cooling water is raised, and the heated cooling water flows into the water-cooling radiator 110 along the cooling water pipeline.
  • the additional connected heat exchange device 4 and water-cooled radiator 110 can not only cool down the battery 5, but also can heat up the battery 5, which can improve the temperature management effect of the temperature management system on the battery 5.
  • the battery 5 can be cooled only by the heat exchange device 4 and the water-cooled radiator 110, or the temperature of the battery 5 can be raised only by the heat exchange device 4 and the water-cooled radiator 110. , such flexible adjustments and changes do not depart from the principle and scope of the present invention, and should be limited within the protection scope of the present invention.
  • the temperature of the battery 5 is lowered through the heat exchange device 4 and the water-cooled radiator 110 , and the temperature of the battery 5 is raised through the heat exchange device 4 and the water-cooled radiator 110 .
  • the air conditioner mentioned above that is, the existing air conditioner, may also include some permanent necessary components of the existing air conditioner, such as electronic Expansion valves, gas-liquid separators, etc. will not be described in detail here.
  • the heat exchange device 4 can be set as a plate heat exchanger, or the heat exchange device 4 can also be set as a combined structure of a heat exchanger and a heat exchange tank, etc.
  • the adjustment and change of the specific structural form of the thermal device 4 do not deviate from the principle and scope of the present invention, and should be limited within the protection scope of the present invention.
  • the heat exchange device 4 is a plate heat exchanger, and a first medium pipeline 41 and a second medium pipeline 42 are arranged in the plate heat exchanger.
  • the first medium pipeline 41 is arranged in parallel with the evaporator 3 through refrigerant pipelines (the first refrigerant pipeline 91 and the second refrigerant pipeline 92), and the two ends of the second medium pipeline 42 pass through the cooling water pipeline (the first cooling water pipeline 130 and the second cooling water pipeline 140) communicate with both ends of the water-cooled radiator 110, the first electric control valve 101 is installed on the first refrigerant pipeline 91, and the water pump 150 is installed on the second cooling water pipeline 140.
  • the exhaust port of the compressor 1 communicates with the first port 71 of the four-way valve 7, and the second port 72 of the four-way valve 7 communicates with the gas-liquid separator 8, and the gas-liquid separator 8 communicates with the air return port of the compressor 1, the third port 73 of the four-way valve 7 communicates with the left end of the condenser 2, the right end of the condenser 2 communicates with the upper end of the evaporator 3, and the lower end of the evaporator 3 communicates with the four-way valve 7
  • the fourth port 74 is connected.
  • the first port 71 of the four-way valve 7 communicates with the third port 73
  • the second port 72 communicates with the fourth port 74
  • the high-temperature and high-pressure refrigerant discharged from the compressor 1 first enters the condenser 2
  • the refrigerant is throttled by the condenser 2
  • the low-temperature and low-pressure refrigerant flows into the first medium pipeline 41 arranged in the heat exchange device 4 along the first refrigerant pipeline 91 .
  • heat exchange occurs with the cooling water flowing through the second medium pipeline 42 provided in the heat exchange device 4 to lower the temperature of the cooling water.
  • the cooled cooling water flows into the water-cooled radiator 110 along the first cooling water pipeline 130.
  • the temperature near the water-cooled radiator 110 is reduced, thereby reducing According to the temperature of the battery 5 , the high-temperature cooling water flowing out from the water-cooling radiator 110 flows into the second medium pipeline 42 along the second cooling water pipeline 140 to exchange heat with the low-temperature refrigerant flowing through the first medium pipeline 41 .
  • the first port 71 of the four-way valve 7 communicates with the fourth port 74
  • the second port 72 communicates with the third port 73
  • the high-temperature and high-pressure refrigerant discharged from the compressor 1 first flows along the first
  • the second refrigerant pipeline 92 flows into the first medium pipeline 41 arranged in the heat exchange device 4 , and when it flows through the first medium pipeline 41 , it is connected with the second medium pipeline 42 that flows through the heat exchange device 4 . Heat exchange occurs in the cooling water to raise the temperature of the cooling water.
  • the heated cooling water flows into the water-cooling radiator 110 along the first cooling water pipeline 130, and when the high-temperature cooling water flows through the water-cooling radiator 110, the temperature near the water-cooling radiator 110 increases, thereby The temperature of the battery 5 is increased, and the low-temperature cooling water flowing out from the water-cooling radiator 110 flows into the second medium pipeline 42 along the second cooling water pipeline 140 to exchange heat with the high-temperature refrigerant flowing through the first medium pipeline 41 .
  • the four-way valve 7 can also be omitted, and in this case, the temperature of the battery 5 can only be raised or lowered by means of an air conditioner.
  • the first electric control valve 101 can also be arranged on the second refrigerant pipeline 92, or, between the first refrigerant pipeline 91 and the second refrigerant pipeline 92 is respectively provided with a first electric control valve 101, this adjustment and change of the specific setting position of the first electric control valve 101 does not deviate from the principle and scope of the present invention, and should be limited within the protection scope of the present invention .
  • the heat exchange device 4 includes a heat exchange tank 43 and a heat exchanger 44 arranged in the water exchange tank 43.
  • the heat exchanger 44 passes through the refrigerant pipeline (first The refrigerant pipeline 91 and the second refrigerant pipeline 92) are arranged in parallel with the evaporator 3, and the two ends of the heat exchange tank 43 pass through the cooling water pipeline (the first cooling water pipeline 130 and the second cooling water pipeline 140). Both ends of the device 110 are connected, a first electric control valve 101 is provided on the first refrigerant pipeline 91 , and a water pump 150 is installed on the second cooling water pipeline 140 .
  • the exhaust port of the compressor 1 communicates with the first port 71 of the four-way valve 7, and the second port 72 of the four-way valve 7 communicates with the gas-liquid separator 8, and the gas-liquid separator 8 communicates with the air return port of the compressor 1, the third port 73 of the four-way valve 7 communicates with the left end of the condenser 2, the right end of the condenser 2 communicates with the upper end of the evaporator 3, and the lower end of the evaporator 3 communicates with the four-way valve 7
  • the fourth port 74 is connected.
  • the first port 71 of the four-way valve 7 communicates with the third port 73
  • the second port 72 communicates with the fourth port 74
  • the high-temperature and high-pressure refrigerant discharged from the compressor 1 first enters the condenser 2
  • the refrigerant becomes a low-temperature and low-pressure refrigerant
  • the low-temperature and low-pressure refrigerant flows into the heat exchanger 44 arranged in the heat exchange tank 43 along the first refrigerant pipeline 91, and flows through the heat exchanger 44
  • the heat exchanger 44 exchanges heat with the cooling water flowing through the heat exchange tank 43 to lower the temperature of the cooling water.
  • the cooled cooling water flows into the water-cooled radiator 110 along the first cooling water pipeline 130.
  • the temperature near the water-cooled radiator 110 is reduced, thereby reducing The temperature of the battery 5
  • the high-temperature cooling water flowing out from the water-cooling radiator 110 flows into the heat exchange tank 43 again along the second cooling water pipeline 140 to exchange heat with the refrigerant flowing through the heat exchanger 44 .
  • the first port 71 of the four-way valve 7 communicates with the fourth port 74
  • the second port 72 communicates with the third port 73
  • the high-temperature and high-pressure refrigerant discharged from the compressor 1 first flows along the first
  • the second refrigerant pipeline 92 flows into the heat exchanger 44 arranged in the heat exchange tank 43 , and exchanges heat with the cooling water in the heat exchange tank 43 when passing through the heat exchanger 44 to raise the temperature of the cooling water.
  • the heated cooling water flows into the water-cooling radiator 110 along the second cooling water pipeline 140.
  • the temperature near the water-cooling radiator 110 increases, thereby The temperature of the battery 5 is raised, and the low-temperature cooling water flowing out from the water-cooling radiator 110 flows into the heat exchange tank 43 again along the first cooling water pipeline 130 to exchange heat with the refrigerant flowing through the heat exchanger 44 .
  • the temperature management system of the present invention further includes a fan 6, which is arranged close to the water-cooling radiator 110, so as to blow the low-temperature air and/or high-temperature air near the water-cooling radiator 110 to the battery 5.
  • the water cooling radiator 110 is located between the fan 6 and the battery 5 .
  • the low-temperature air and/or high-temperature air near the water-cooling radiator 110 can be blown to the battery 5 by the fan 6, which is more conducive to reducing and/or increasing the temperature of the battery 5; in addition, the fan 6 is arranged on the left side of the water-cooling radiator 110 The battery 5 is arranged on the right side of the water-cooled radiator 110, which can prevent the condensed water on the water-cooled radiator 110 from blowing to the battery 5, thereby improving safety.
  • the flow direction of the refrigerant in the heat exchange device 4 of the present invention is opposite to the flow direction of the cooling water.
  • the cooling effect on the cooling water can be improved, thereby improving the cooling effect on the battery 5 .
  • the temperature management system of the present invention further includes a water storage tank 120 in which cooling water is stored, and the water storage tank 120 communicates with the water-cooling radiator 110 .
  • cooling water can be added to the system to ensure the cooling effect on the battery 5 .
  • the present invention also provides a control method of the temperature management system, as shown in FIG. 3 , the control method of the present invention includes the following steps:
  • S200 According to the temperature, selectively open the first electric control valve to run the air conditioner and the water pump.
  • a temperature sensor is provided on the battery, the temperature sensor can detect the temperature of the battery, and the temperature sensor is communicatively connected with the controller of the temperature management system, so as to transmit the data detected by the temperature sensor to the controller.
  • Each component of the temperature management system of the present invention is connected with the controller in communication, and the controller can control each component.
  • the controller can control the start and stop of the compressor, and can control the opening and closing of the first electric control valve. It can control the start and stop of the fan, the start and stop of the water pump and so on.
  • the controller After the controller receives the temperature data transmitted by the temperature sensor, it can judge whether it is necessary to cool down and/or heat up the battery according to the temperature, and judge whether to open the first electric control valve according to the judgment result. At the same time as the electric control valve, the air conditioner and the water pump also need to be operated so that the cooling water can be cooled and/or heated through the heat exchange device, and the battery can be cooled and/or heated through the water-cooled radiator.
  • a temperature range (for example, 15 to 35 degrees) can be set for the temperature of the battery.
  • the temperature of the battery is cooled; when the temperature of the battery is lower than the temperature range, Heat up the battery; or, you can also set a preset temperature for the battery temperature, first calculate the difference between the battery temperature and the preset temperature, and then judge whether the battery needs to be cooled or not based on the difference. /or temperature rise, etc., such flexible adjustments and changes do not deviate from the principle and scope of the present invention, and should be limited within the protection scope of the present invention.
  • control method of the present invention comprises the following steps:
  • the temperature sensor of the battery can be used to detect the temperature of the battery.
  • the controller obtains the temperature of the battery, it selectively opens the first electric control valve and activates the and the water pump are running.
  • the step of "selectively opening the first electric control valve and operating the air conditioner and the water pump according to the temperature” specifically includes S210 to S240.
  • S210 Determine whether the temperature of the battery is greater than a first preset temperature.
  • the specific value of the first preset temperature is pre-stored in the controller. After acquiring the temperature of the battery, the controller first compares the temperature of the battery with the first preset temperature to determine whether the temperature of the battery is higher than the first preset temperature.
  • step S220 is executed.
  • step S230 is performed, that is, controlling the opening of the first electric control valve and controlling the air conditioner to operate in cooling mode, In order to cool down the cooling water through the heat exchange device, and at the same time make the water pump run, so as to reduce the temperature of the battery through the water-cooled radiator.
  • the first preset temperature is set to 35 degrees, and when the temperature of the battery is greater than 35 degrees, it indicates that the temperature of the battery is too high, and the battery needs to be cooled.
  • the data of the first preset temperature is not limited to the above-mentioned 35 degrees, for example, the first preset temperature can also be set to 30 degrees or 40 degrees, etc., and those skilled in the art can use it according to experiments or The specific value of the first preset temperature can be flexibly set empirically.
  • S220 Determine whether the temperature of the battery is lower than a second preset temperature.
  • the specific value of the second preset temperature is also pre-stored in the controller. After the controller determines that the temperature of the battery is not higher than the first preset temperature, it then compares the temperature of the battery with the second preset temperature to determine whether the temperature of the battery is lower than the first preset temperature. A second preset temperature, wherein the second preset temperature is lower than the first preset temperature.
  • step S240 control the first electric control valve to open, and control the air conditioner to operate in heating mode, so as to cool the battery through the heat exchange device.
  • the water heats up and at the same time runs the water pump to raise the temperature of the battery through the water-cooled radiator.
  • the second preset temperature is set to 15 degrees, and when the temperature of the battery is lower than 15 degrees, it means that the temperature of the battery is too low, and the battery needs to be heated up.
  • the data of the second preset temperature is not limited to the above-mentioned 15 degrees.
  • the second preset temperature can also be set to 10 degrees or 20 degrees.
  • Those skilled in the art can use it according to experiments or The specific value of the second preset temperature can be flexibly set empirically.
  • the first electric control valve may not be opened.
  • step S220 may be executed first, and then step S210 is executed, that is, after the temperature of the battery is obtained, the temperature of the battery is first compared with the second preset temperature to determine Whether the temperature of the battery is lower than the second preset temperature, when the temperature of the battery is not lower than the second preset temperature, then comparing the temperature of the battery with the first preset temperature to determine whether the temperature of the battery is higher than the first preset temperature,
  • step S220 may be executed first, and then step S210 is executed, that is, after the temperature of the battery is obtained, the temperature of the battery is first compared with the second preset temperature to determine Whether the temperature of the battery is lower than the second preset temperature, when the temperature of the battery is not lower than the second preset temperature, then comparing the temperature of the battery with the first preset temperature to determine whether the temperature of the battery is higher than the first preset temperature
  • S230 Open the first electric control valve and make the air conditioner run in cooling mode and make the water pump run.
  • the compressor of the air conditioner is controlled to start, and the air conditioner is operated in cooling mode, and the water pump is started at the same time.
  • the refrigerant is throttled from the condenser, it becomes a low-temperature and low-pressure gas-liquid two-phase state.
  • the refrigerant flowing out of the condenser flows through the heat exchange device, it is in contact with the cooling water flowing through the heat exchange device. Heat exchange reduces the temperature of the cooling water.
  • the low-temperature cooling water flowing out of the heat exchange device flows into the water-cooled radiator along the cooling water pipeline, which reduces the temperature near the water-cooled radiator.
  • the low-temperature air is blown to the battery, thereby cooling the battery more effectively.
  • S240 Open the first electric control valve and make the air conditioner run in heating mode and make the water pump run.
  • the compressor of the air conditioner is controlled to start, and the air conditioner is operated in heating mode, and the water pump is operated at the same time.
  • the refrigerant flows through the heat exchange device, it exchanges heat with the cooling water flowing through the heat exchange device to increase the temperature of the cooling water, and the high-temperature cooling water flowing out of the heat exchange device flows into the cooling water pipeline
  • the water-cooled radiator increases the temperature near the water-cooled radiator.
  • the fan can also be controlled to blow the high-temperature air near the water-cooled radiator to the battery, thereby heating the battery more effectively.
  • control method of the present invention further includes: obtaining the current state of the compressor of the air conditioner; The machine starts running and keeps the evaporator fan at a stop.
  • the first electric control valve When it is determined that the temperature of the battery is too high and/or too low, it is necessary to open the first electric control valve to connect the heat exchange device to the air conditioner, and cool down and/or heat up the cooling water through the heat exchange device, and then dissipate heat through water cooling To reduce or increase the temperature of the battery, first obtain the current state of the compressor of the air conditioner at the same time or after opening the first electric control valve. If the compressor is just in the running state, then keep the compressor running.
  • the compressor Conversely, if the compressor is in a stopped state, the compressor is controlled to start running, and at the same time, the fan of the evaporator needs to be kept in a stopped state, that is, the fan of the evaporator is not started. Through such a setting, it is possible to avoid an influence on the temperature of the cab of the vehicle, thereby improving user experience.
  • control method of the present invention further includes: adjusting the opening degree of the first electric control valve according to the temperature and the set target temperature.
  • the opening degree of the first electric control valve can be adjusted according to the difference between the temperature of the battery and the set target temperature. For example, if the difference between the temperature of the battery and the set target temperature is small large, increase the opening degree of the first electric control valve; on the contrary, if the difference between the temperature of the battery and the set target temperature is small, then decrease the opening degree of the first electric control valve; or, according to The ratio between the temperature of the battery and the set target temperature is used to adjust the opening of the first electric control valve, etc.
  • This flexible adjustment and change does not deviate from the principle and scope of the present invention, and should be limited to this within the scope of protection of the invention.
  • the step of "adjusting the opening of the first electric control valve according to the temperature and the set target temperature” specifically includes: calculating the difference between the temperature and the set temperature; adjusting the opening of the first electric control valve according to the difference The opening is adjusted by PID (Proportion Integration Differentiation).
  • PID Proportion Integration Differentiation
  • the opening of the first electric control valve can be dynamically, quickly and accurately adjusted to prevent the problem of overshoot or overshoot of the first electric control valve, so that the temperature of the battery can be managed more effectively .
  • the controller is provided with a connected calculation unit and a PID adjustment unit, the calculation unit can calculate the difference between the temperature of the battery and the set target temperature, and the PID adjustment unit can calculate the difference between the battery temperature and the set target temperature. PID adjustment is performed on the opening degree of the first electric control valve based on the difference between them.
  • the first electronically controlled valve is preferably a solenoid valve or an electronic expansion valve.
  • the water exchange tank 43 of the present invention is provided with a drain pipe 160
  • the drain pipe 160 is provided with a second electric control valve 170 for controlling the flow of the drain pipe 160 .
  • the control method of the present invention further includes: obtaining the temperature of the cooling water in the heat exchange tank; and selectively opening the second electric control valve according to the temperature of the cooling water.
  • a temperature sensor can be installed in the heat exchange tank to detect the temperature of the cooling water in the heat exchange tank, and the temperature sensor can be communicated with the controller of the temperature management system so that the detected temperature data can be timely transmitted to the controller.
  • the controller can control the opening and closing of the second electric control valve.
  • the temperature of the cooling water can be directly compared with the preset temperature, and the second electric control valve can be selectively opened according to the comparison result, or the difference between the temperature of the cooling water and the preset temperature can also be calculated first. difference, and then selectively open the second electric control valve according to the size of the difference, etc., this flexible adjustment and change does not deviate from the principle and scope of the present invention, and should be limited within the protection scope of the present invention within.
  • the step of "selectively opening the second electric control valve according to the temperature of the cooling water” specifically includes: comparing the temperature of the cooling water with the third preset temperature; if the temperature of the cooling water is less than the third preset temperature , then open the second electric control valve.
  • the cooling water in the heat exchange tank can be discharged in time to avoid freezing and cracking the heat exchange tank.
  • the third preset temperature is 0 degrees.
  • the water in the heat exchange tank may freeze, causing the heat exchange tank to freeze and crack.
  • the second electric control valve is opened , Drain the water in the heat exchange tank in time, which can prevent the heat exchange tank from being frozen and cracked.
  • the specific value of the third preset temperature is not limited to the above-mentioned 0 degrees.
  • the third preset temperature can also be set to 0.1 degrees, 0.2 degrees, etc., and those skilled in the art can
  • the specific value of the third preset temperature can be flexibly set as long as it can prevent the heat exchange tank from freezing and cracking.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

La présente invention concerne le domaine technique de la gestion de la température. L'invention concerne précisément un procédé de commande pour un système de gestion de température d'un véhicule, ainsi qu'un système de gestion de température. En particulier, le système de gestion de température d'un véhicule de la présente invention comprend un climatiseur, un appareil d'échange de chaleur, un dissipateur thermique refroidi à l'eau et une batterie, le dissipateur thermique refroidi à l'eau étant agencé à proximité de la batterie, de manière à refroidir et/ou chauffer la batterie ; l'appareil d'échange de chaleur et un évaporateur sont agencés en parallèle et deux extrémités de l'appareil d'échange de chaleur sont en outre en communication avec deux extrémités du dissipateur thermique refroidi à l'eau, de sorte que l'eau de refroidissement soit refroidie et/ou chauffée au moyen d'un fluide frigorigène ; une première soupape à commande électrique est prévue sur une conduite de fluide frigorigène et la première soupape à commande électrique est utilisée pour commander l'état de marche/arrêt de la conduite de fluide frigorigène ; et une pompe à eau est prévue sur une conduite d'eau de refroidissement. Le procédé de commande consiste à : acquérir la température d'une batterie ; et, en fonction de la température, allumer sélectivement une première soupape à commande électrique et permettre le fonctionnement d'un climatiseur et d'une pompe à eau. Au moyen d'un tel agencement, l'effet de gestion d'un système de gestion de température sur la température d'une batterie peut être amélioré et on peut également empêcher qu'un fluide frigorigène soit proche de la batterie, ce qui améliore la sécurité.
PCT/CN2022/103703 2021-11-30 2022-07-04 Procédé de commande pour système de gestion de température de véhicule et système de gestion de température WO2023098079A1 (fr)

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CN117393892A (zh) * 2023-11-28 2024-01-12 广州市耀华制冷设备有限公司 一种电池充电站温控装置
CN117543132A (zh) * 2024-01-10 2024-02-09 青岛宜博铜业集团有限公司 一种ccs组件及电池包
CN117393892B (zh) * 2023-11-28 2024-05-31 广州市耀华制冷设备有限公司 一种电池充电站温控装置

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CN114122560A (zh) * 2021-11-30 2022-03-01 青岛海尔空调器有限总公司 车辆的温度管理系统的控制方法及温度管理系统
CN117249506B (zh) * 2023-11-15 2024-02-20 珠海格力电器股份有限公司 一种光伏空调系统及其控制方法

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CN114122560A (zh) * 2021-11-30 2022-03-01 青岛海尔空调器有限总公司 车辆的温度管理系统的控制方法及温度管理系统

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CN209410062U (zh) * 2019-01-07 2019-09-20 山东朗进科技股份有限公司 一种电池热管理空调系统
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CN116073596A (zh) * 2022-12-07 2023-05-05 国能大渡河枕头坝发电有限公司 一种发电机组定子温升控制系统及其方法
CN117393892A (zh) * 2023-11-28 2024-01-12 广州市耀华制冷设备有限公司 一种电池充电站温控装置
CN117393892B (zh) * 2023-11-28 2024-05-31 广州市耀华制冷设备有限公司 一种电池充电站温控装置
CN117543132A (zh) * 2024-01-10 2024-02-09 青岛宜博铜业集团有限公司 一种ccs组件及电池包
CN117543132B (zh) * 2024-01-10 2024-04-26 青岛宜博铜业集团有限公司 一种ccs组件及电池包

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