CN112902471A - Vehicle cooling control method and system and vehicle - Google Patents

Vehicle cooling control method and system and vehicle Download PDF

Info

Publication number
CN112902471A
CN112902471A CN202110154992.3A CN202110154992A CN112902471A CN 112902471 A CN112902471 A CN 112902471A CN 202110154992 A CN202110154992 A CN 202110154992A CN 112902471 A CN112902471 A CN 112902471A
Authority
CN
China
Prior art keywords
compressor
target
temperature
vehicle
rotating speed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110154992.3A
Other languages
Chinese (zh)
Other versions
CN112902471B (en
Inventor
井俊超
刘义强
黄伟山
王瑞平
肖逸阁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Geely Holding Group Co Ltd
Ningbo Geely Royal Engine Components Co Ltd
Zhejiang Geely Power Train Co Ltd
Original Assignee
Zhejiang Geely Holding Group Co Ltd
Ningbo Geely Royal Engine Components Co Ltd
Zhejiang Geely Power Train Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Geely Holding Group Co Ltd, Ningbo Geely Royal Engine Components Co Ltd, Zhejiang Geely Power Train Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Priority to CN202211104559.XA priority Critical patent/CN115468324B/en
Priority to CN202110154992.3A priority patent/CN112902471B/en
Publication of CN112902471A publication Critical patent/CN112902471A/en
Application granted granted Critical
Publication of CN112902471B publication Critical patent/CN112902471B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/635—Control systems based on ambient temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0253—Compressor control by controlling speed with variable speed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Abstract

The invention provides a control method and a control system for cooling a vehicle and the vehicle, and relates to the field of vehicle engines. Firstly, acquiring running parameters of a vehicle, wherein the running parameters at least comprise the temperature of a power battery and the temperature of a cockpit evaporator, and then simultaneously conducting a cockpit evaporator cooling loop and a power battery cooling loop or selectively cooling one of the cockpit evaporator cooling loop and the power battery cooling loop according to the temperature of the power battery and the temperature of the cockpit evaporator; then, calculating the target rotating speed and the target power of a compressor in the vehicle according to the operation parameters and a preset calculation method; and finally, controlling the compressor to operate according to the target rotating speed and the target power so as to cool the power battery and the cab evaporator simultaneously or selectively. The invention can calculate the target rotating speed and the target power of the proper compressor, thereby saving the energy consumption of the vehicle and ensuring the normal operation of the cooling system of the vehicle.

Description

Vehicle cooling control method and system and vehicle
Technical Field
The invention relates to the field of vehicle engines, in particular to a control method and a control system for cooling a vehicle and the vehicle.
Background
With increasingly strict requirements of national regulations on oil consumption and emission and development of electrified systems, the hybrid power technology is the key for realizing energy conservation and emission reduction. In order to meet national policies and emission regulations, the entire car factory and parts suppliers are looking for solutions. However, the power battery of the existing pure electric vehicle technical system is complex in technology and high in cost, and the hybrid power system is energy-saving, environment-friendly and efficient and can be widely popularized.
Under the working conditions that the ambient temperature rises or the power battery is charged and discharged for a long time, the temperature of the power battery can rise rapidly. For higher power battery system efficiency and longer life, the power battery system operating temperature should be maintained at the appropriate interval. When the temperature of the cooling liquid of the power battery exceeds a certain threshold value, the cooling liquid needs to be cooled. When the ambient temperature rises, the air conditioner is started to cool the cabin, so that the proper temperature is maintained in the vehicle.
In the power battery and the cockpit cooling system in the prior art, when the power battery and/or the cockpit have a cooling demand, the compressor is directly started to cool the power battery and/or the cockpit, but there is no specific limitation on the selection of the rotation speed and the power of the compressor, so that the rotation speed value and the power value set by directly and simply starting the compressor are fixed, and therefore, the energy of the compressor is too large under some working conditions, for example, the cooling demand is low, and the energy of the compressor is too low under some working conditions, for example, the cooling demand is large.
Disclosure of Invention
The invention aims to provide a vehicle cooling control method, which solves the technical problem that in the prior art, the energy consumption is too large or too small when a compressor cools a power battery and/or a cab evaporator.
A further object of the first aspect of the invention is to improve the safety of the entire vehicle.
It is an object of a second aspect of the present invention to provide a control system for cooling of a vehicle.
An object of a third aspect of the invention is to provide a vehicle having the control system described above.
According to an object of a first aspect of the present invention, there is provided a control method of cooling a vehicle, comprising:
acquiring operating parameters of a vehicle, wherein the operating parameters at least comprise the temperature of a power battery and the temperature of a cockpit evaporator;
conducting one of a cockpit evaporator cooling circuit and a power battery cooling circuit simultaneously or selectively according to the temperature of the power battery and the temperature of the cockpit evaporator;
calculating a target rotating speed and a target power of a compressor in the vehicle according to the operating parameters by a preset calculation method so as to meet the cooling requirement of the cockpit evaporator cooling circuit and/or the power battery cooling circuit;
controlling the compressor to operate at the target speed and the target power to simultaneously cool the power battery and the cabin evaporator or selectively cool one of the power battery and the cabin evaporator.
Optionally, the step of calculating a target rotation speed and a target power of a compressor in the vehicle according to the operation parameters by a preset calculation method specifically includes:
and when only the power battery cooling loop is conducted and the temperature of the cooling liquid in the power battery cooling loop is greater than a first preset temperature, searching a preset storage module to obtain a target rotating speed of the compressor corresponding to the ambient temperature of the vehicle, wherein the operating parameters further comprise the temperature of the cooling liquid in the power battery cooling loop and the ambient temperature, and the preset storage module stores the corresponding relation between the ambient temperature and the target rotating speed of the compressor.
Optionally, the step of calculating a target rotation speed and a target power of a compressor in the vehicle according to the operation parameters by a preset calculation method specifically includes:
and when only the cockpit evaporator cooling circuit is conducted, calculating the target rotating speed of the compressor according to the temperature of the cockpit evaporator, the target temperature of the cockpit evaporator, the ambient temperature of the vehicle and the air conditioning air volume, wherein the operation parameters further comprise the target temperature of the cockpit evaporator, the ambient temperature and the air conditioning air volume.
Optionally, the step of calculating the target rotation speed of the compressor according to the temperature of the cabin evaporator, the target temperature of the cabin evaporator, the ambient temperature of the vehicle and the air conditioning air volume specifically includes:
searching and obtaining an internal circulation rotating speed and an external circulation rotating speed of the compressor corresponding to the target temperature, the ambient temperature and the air conditioning air volume from a preset storage module, and calculating a PI rotating speed through a PI algorithm according to a difference value of the temperature of the cockpit evaporator and the target temperature, the ambient temperature and the air conditioning air volume, wherein the preset storage module stores corresponding relations between the target temperature, the ambient temperature and the air conditioning air volume and the internal circulation rotating speed and the external circulation rotating speed;
calculating a feedforward control rotation speed of the compressor by linear interpolation using the internal circulation rotation speed and the external circulation rotation speed;
adding the feedforward control rotation speed and the PI rotation speed to calculate a target rotation speed of the compressor.
Optionally, the step of calculating a target rotation speed and a target power of a compressor in the vehicle according to a preset calculation method according to the operation parameters further includes:
when the power battery cooling circuit and the cockpit evaporator cooling circuit are conducted, calculating the predicted rotating speed of the compressor according to the temperature of the cockpit evaporator, the target temperature of the cockpit evaporator, the ambient temperature of the vehicle and the air conditioning air quantity, wherein the operation parameters further comprise the target temperature of the cockpit evaporator, the ambient temperature and the air conditioning air quantity;
searching and obtaining a low speed value, a medium speed value and a high speed value of the compressor corresponding to the predicted rotating speed and the ambient temperature from a preset storage module, and searching and obtaining a weight coefficient corresponding to the temperature of cooling liquid in the power battery cooling loop, wherein the operation parameters further comprise the temperature of the cooling liquid in the power battery cooling loop, and the preset storage module stores the corresponding relations between the predicted rotating speed and the ambient temperature and the low speed value, the medium speed value and the high speed value of the compressor, and the corresponding relations between the temperature of the cooling liquid in the power battery cooling loop and the weight coefficient;
and calculating the target rotating speed of the compressor by linear interpolation by using the low speed value, the medium speed value, the high speed value and the weight coefficient of the compressor.
Optionally, the step of calculating the target rotation speed of the compressor further includes:
searching and obtaining a target power of the compressor corresponding to a target rotating speed of the compressor and an air conditioning pressure of the vehicle from a preset storage module, wherein the operating parameters further comprise the air conditioning pressure of the vehicle, and the preset storage module stores a corresponding relation between the target rotating speed of the compressor, the air conditioning pressure and the target power of the compressor;
and controlling the compressor to operate according to the target rotating speed and the target power.
Optionally, the step of searching a preset storage module for a target power of the compressor corresponding to a target rotation speed of the compressor and an air conditioning pressure of the vehicle further includes:
when the power battery cooling loop is conducted, adding the target power of the compressor and preset power to obtain the final power of the compressor;
and controlling the compressor to operate according to the target rotating speed and the final power.
Optionally, the step of calculating the target rotation speed of the compressor further includes:
searching a preset storage module to obtain the maximum limit rotating speed of the compressor corresponding to the ambient temperature of the vehicle and the speed of the vehicle, wherein the operating parameters further comprise the speed of the vehicle;
and if the target rotating speed of the compressor is greater than the maximum limit rotating speed, controlling the compressor to operate according to the maximum limit rotating speed.
According to an object of a second aspect of the present invention, there is also provided a control system for cooling a vehicle, comprising:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring the operating parameters of the vehicle, and the operating parameters at least comprise the temperature of a power battery and the temperature of a cockpit evaporator; and
the control module comprises a memory and a processor, wherein the memory stores a calculation program, and the calculation program is used for realizing the control method when being executed by the processor.
According to an object of the third aspect of the invention, the invention also provides a vehicle equipped with the control system described above.
Firstly, acquiring running parameters of a vehicle, wherein the running parameters at least comprise the temperature of a power battery and the temperature of a cockpit evaporator, and then simultaneously conducting a cockpit evaporator cooling loop and a power battery cooling loop or selectively conducting one of the cockpit evaporator cooling loop and the power battery cooling loop according to the temperature of the power battery and the temperature of the cockpit evaporator; then, calculating a target rotating speed and a target power of a compressor in the vehicle according to the operation parameters by a preset calculation method so as to meet the cooling requirements of the cockpit evaporator cooling circuit and/or the power battery cooling circuit; and finally, controlling the compressor to operate according to the target rotating speed and the target power so as to cool the power battery and the cab evaporator simultaneously or selectively. The target rotating speed and the target power of the compressor are calculated according to specific cooling requirements, and compared with the scheme that the power battery and/or the cockpit evaporator of the vehicle are cooled by adopting the same compressor rotating speed and power as long as the vehicle has a cooling request in the prior art, the target rotating speed and the target power of the compressor can be calculated appropriately, so that the energy consumption of the vehicle is saved, and the normal operation of a vehicle cooling system can be ensured.
Further, after the target rotating speed of the compressor is calculated, the maximum limit rotating speed of the compressor corresponding to the environment temperature where the vehicle is located and the speed of the vehicle is searched and obtained from the preset storage module; and controlling the compressor to operate according to the maximum limit rotating speed if the target rotating speed of the compressor is greater than the maximum limit rotating speed. The invention fully considers the maximum limit rotating speed of the compressor and can ensure the safety of the whole vehicle.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic flow chart diagram of a control method of vehicle cooling according to one embodiment of the present invention;
FIG. 2 is a schematic flow diagram of a cockpit evaporator cooling circuit according to one embodiment of the present invention;
FIG. 3 is a schematic flow diagram of a power cell cooling circuit according to one embodiment of the present invention;
FIG. 4 is a schematic flow diagram of a cockpit evaporator cooling circuit and a power cell cooling circuit according to one embodiment of the present invention;
FIG. 5 is a schematic flow chart diagram of a control method of vehicle cooling according to another embodiment of the present invention;
FIG. 6 is a schematic block diagram of a control system for vehicle cooling according to one embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
FIG. 1 is a schematic flow chart diagram of a control method of vehicle cooling according to one embodiment of the present invention. As shown in FIG. 1, in one particular embodiment, a method of controlling vehicle cooling includes the steps of:
s100, obtaining operation parameters of a vehicle, wherein the operation parameters at least comprise the temperature of a power battery and the temperature of a cockpit evaporator;
s200, conducting a cockpit evaporator cooling circuit and/or a power battery cooling circuit at the same time or selectively conducting one of the cockpit evaporator cooling circuit and/or the power battery cooling circuit according to the temperature of the power battery and the temperature of the cockpit evaporator;
s300, calculating a target rotating speed and a target power of a compressor in the vehicle according to the running parameters by a preset calculation method;
and S400, controlling the compressor to operate according to the target rotating speed and the target power so as to cool the power battery and the cab evaporator simultaneously or selectively cool one of the power battery and the cab evaporator.
The target rotating speed and the target power of the compressor are calculated according to specific cooling requirements, and compared with the scheme that the power battery and/or the cockpit evaporator of the vehicle are cooled by adopting the same compressor rotating speed and power as long as the vehicle has a cooling request in the prior art, the target rotating speed and the target power of the compressor can be calculated appropriately, so that the energy consumption of the vehicle is saved, and the normal operation of a vehicle cooling system can be ensured.
Fig. 2 is a schematic flow diagram of a cabin evaporator 30 cooling circuit according to an embodiment of the present invention, fig. 3 is a schematic flow diagram of a power battery 70 cooling circuit according to an embodiment of the present invention, and fig. 4 is a schematic flow diagram of the cabin evaporator 30 cooling circuit and the power battery 70 cooling circuit according to an embodiment of the present invention. As shown in fig. 2, wherein the direction of the arrow is the flow direction of the cooling liquid in the cooling circuit of the cabin evaporator 30, when the actual temperature of the cabin evaporator 30 is greater than the third preset temperature, the first control valve 20 is controlled to open to conduct the cooling circuit of the cabin evaporator 30, and the cooling liquid in the cooling circuit of the cabin evaporator 30 circulates among the evaporator 30, the compressor 10, the condenser 60 and the first control valve 20. As shown in fig. 3, where the direction of the arrow is a flowing direction of the cooling liquid in the cooling circuit of the power battery 70, when the temperature of the power battery 70 is greater than a second preset temperature, the second control valve 50 is controlled to open to conduct the cooling circuit of the power battery 70, and the cooling liquid in the cooling circuit of the power battery 70 circulates in the power battery 70, the heat exchanger 40, the compressor 10, the condenser 60, and the second control valve 50, and the heat exchanger 40 is used to take away heat of the cooling liquid, so as to cool the power battery 70. As shown in fig. 4, wherein the direction of the arrows is the flow direction of the cooling liquid in the cooling circuit of the power battery 70 and the cooling liquid in the cooling circuit of the cabin evaporator 30, when the temperature of the power battery 70 is greater than the second preset temperature and the actual temperature of the cabin evaporator 30 is greater than the third preset temperature, the first control valve 20 and the second control valve 50 are controlled to be opened to conduct the cooling circuit of the power battery 70 and the cooling circuit of the cabin evaporator 30 simultaneously. Here, the second preset temperature and the third preset temperature may be set according to a specific design of the vehicle, and the second preset temperature may be 32 ℃ in one embodiment.
According to the invention, when a cooling request of the cabin evaporator 30 and/or a cooling request of the power battery 70 are/is given to the vehicle, the first control valve 20 and/or the second control valve 50 are/is selectively controlled to be opened so as to be cooled by the compressor 10, and finally, the temperatures of the evaporator 30 and the power battery 70 meet the requirements, so that the subjective feeling of passengers is met, the power battery 70 works in a proper temperature range, the comfort of the whole vehicle is improved, the service life of the power battery 70 is prolonged, and the safety of the whole vehicle is improved.
Further, before controlling the first control valve 20 to open, it is necessary to determine whether the first control valve 20 satisfies an enabling condition, and if so, the first control valve 20 is controlled to open, where the enabling condition of the first control valve 20 satisfies the following conditions:
1. the air conditioner controller has no fault;
2. the fan 80 operates normally;
3. the engine is in a running state;
4. the mass flow of air through the condenser 60 is greater than 0.1;
5. the air temperature behind the evaporator 30 is greater than-1;
6. the refrigerant pressure (high pressure side) is not too high.
Specifically, if it is determined through diagnosis that the air conditioner controller has requested the first control valve 20 to be enabled and the compressor 10 is operating but not cooling, it is considered to be a malfunction phenomenon; if the fault phenomenon continuously exceeds 60s, determining that a fault exists; forcibly switching for 1 time every 1s in the first 6s after the fault is determined; determining 60s after the fault, and forcibly judging whether the fault occurs once again; if a cycle determines a fault 5 times, a fault is reported.
Further, before controlling the second control valve 50 to open, it is necessary to determine whether the second control valve 50 satisfies an enabling condition, and if so, controlling the second control valve 50 to open, where the enabling condition of the second control valve 50 satisfies the following conditions:
1. the power battery 70 controller has no fault;
2. the fan 80 operates normally;
3. the temperature of the power battery 70 is higher than 32 ℃;
4. the refrigerant pressure (high pressure side) is not too high;
5. the flow rate of the cooling liquid in the cooling loop of the power battery 70 is not lower than 0.1;
6. the temperature of the cooling liquid in the cooling loop of the power battery 70 is not lower than 15 ℃;
7. the second control valve 50 is not forcibly closed. Because opening the second control valve 50 will cause the delta between the actual temperature of the air after the evaporator 30 and the desired temperature to be greater than a certain limit, the beller valve will be forcibly closed until the delta is again less than the limit (to prevent the actual temperature of the air after the evaporator 30 from rising too much due to cooling the power battery 70.)
Further, before calculating the target rotation speed and the target power of the compressor 10, it is necessary to determine whether the compressor 10 can be operated, and if the compressor 10 can be operated, the target rotation speed and the target power of the compressor 10 are calculated, and the compressor 10 is operated to satisfy the following requirements:
1. the water temperature of the engine is less than 122 ℃;
2. the refrigerant pressure (high pressure side) is in the range of 0.5bar to 30 bar;
3. the ambient temperature of the vehicle is more than-2 ℃;
4. the temperature of the engine oil is less than 142 ℃;
5. the voltage of the air conditioning system is in the range of 0V-16V;
6. the refrigerant solenoid valve is opened.
Further, the refrigerant electromagnetic valve needs to be opened to meet any one of the following conditions:
1. the first control valve 20 satisfies the above-described enable condition and the first control valve 20 is opened;
2. the second control valve 50 satisfies the above-described enable condition and the second control valve 50 is opened.
Fig. 5 is a schematic flow chart of a control method of cooling of a vehicle according to another embodiment of the invention. As shown in fig. 5, in another embodiment, the step S300 of calculating the target rotation speed and the target power of the compressor in the vehicle according to the preset calculation method according to the operation parameters specifically includes the following three cases:
the first method comprises the following steps: and S310, when only the power battery cooling loop is conducted and the temperature of the cooling liquid in the power battery cooling loop is higher than a first preset temperature, searching a preset storage module to obtain a target rotating speed (considering both oil consumption and NVH) of the compressor corresponding to the ambient temperature of the vehicle, wherein the operation parameters further comprise the temperature of the cooling liquid in the power battery cooling loop and the ambient temperature, and the preset storage module stores the corresponding relation between the ambient temperature and the target rotating speed of the compressor. Here, the first preset temperature may be set to 23 ℃. In addition, when the ambient temperature of the vehicle is more than 30 ℃, the maximum rotating speed of the compressor is controlled and used on the premise of considering NVH. And when the temperature of the cooling liquid in the power battery cooling loop is lower than 15 ℃, controlling the target rotating speed of the compressor to be zero. The corresponding relationship between the ambient temperature and the rotational speed of the compressor is shown in table 1:
TABLE 1
Ambient temperature -5 0 5 10 15 20 25 30 35 40
Rotational speed of compressor 2000 2000 2000 2000 2000 2000 2000 2500 2500 2500
And the second method comprises the following steps: and when only the cockpit evaporator cooling circuit is conducted, calculating the target rotating speed of the compressor according to the temperature of the cockpit evaporator, the target temperature of the cockpit evaporator, the ambient temperature of the vehicle and the air conditioning air quantity, wherein the operation parameters further comprise the target temperature of the cockpit evaporator, the ambient temperature and the air conditioning air quantity. The method specifically comprises the following steps:
s320, when only the cooling loop of the cockpit evaporator is conducted, searching and obtaining the internal circulation rotating speed and the external circulation rotating speed of the compressor corresponding to the target temperature, the ambient temperature and the air conditioning air quantity from a preset storage module, calculating the PI rotating speed through a PI algorithm according to the difference value of the temperature of the cockpit evaporator and the target temperature, the ambient temperature and the air conditioning air quantity, and storing the corresponding relation of the target temperature, the ambient temperature and the air conditioning air quantity with the internal circulation rotating speed and the external circulation rotating speed in the preset storage module; in one embodiment, the ambient temperature may be divided into 6 ambient temperature ranges, and 6 Map tables of the air conditioning air volume, the internal circulation rotation speed of the compressor, and the external circulation rotation speed corresponding to the 6 ambient temperature ranges are correspondingly set. The 6 environmental temperature ranges can be less than 10 ℃, 10-20 ℃, 20-30 ℃, 30-40 ℃, 40-50 ℃ and more than 50 ℃.
S321, calculating the feedforward control rotating speed of the compressor by linear interpolation by utilizing the inner circulation rotating speed and the outer circulation rotating speed;
and S322, adding the feedforward control rotating speed and the PI rotating speed to calculate the target rotating speed of the compressor.
And the third is that: and when the power battery cooling circuit and the cockpit evaporator cooling circuit are conducted, calculating the predicted rotating speed of the compressor according to the temperature of the cockpit evaporator, the target temperature of the cockpit evaporator, the ambient temperature of the vehicle and the air conditioning air quantity, wherein the operation parameters further comprise the target temperature of the cockpit evaporator, the ambient temperature and the air conditioning air quantity. The method specifically comprises the following steps:
s330, when the power battery cooling loop and the cockpit evaporator cooling loop are conducted, searching and obtaining an internal circulation rotating speed and an external circulation rotating speed of the compressor corresponding to a target temperature, an ambient temperature and an air conditioning air quantity from a preset storage module, calculating a PI rotating speed through a PI algorithm according to a difference value between the temperature of the cockpit evaporator and the target temperature, the ambient temperature and the air conditioning air quantity, and storing a corresponding relation between the target temperature, the ambient temperature and the air conditioning air quantity and the internal circulation rotating speed and the external circulation rotating speed in the preset storage module; in one embodiment, the ambient temperature may be divided into 6 ambient temperature ranges, and 6 Map tables of the air conditioning air volume, the internal circulation rotation speed of the compressor, and the external circulation rotation speed corresponding to the 6 ambient temperature ranges are correspondingly set. The 6 environmental temperature ranges can be less than 10 ℃, 10-20 ℃, 20-30 ℃, 30-40 ℃, 40-50 ℃ and more than 50 ℃.
S331, calculating the feedforward control rotating speed of the compressor by linear interpolation by utilizing the internal circulation rotating speed and the external circulation rotating speed;
and S332, adding the feedforward control rotating speed and the PI rotating speed to calculate the predicted rotating speed of the compressor.
The following steps are also included after that:
s333, searching and obtaining a low speed value, a medium speed value and a high speed value of the compressor corresponding to the predicted rotating speed and the ambient temperature from a preset storage module, and searching and obtaining a weight coefficient corresponding to the temperature of cooling liquid in the power battery cooling loop, wherein the operation parameters further comprise the temperature of the cooling liquid in the power battery cooling loop, and the preset storage module stores the corresponding relations between the predicted rotating speed and the ambient temperature and the low speed value, the medium speed value and the high speed value of the compressor, and the corresponding relations between the temperature of the cooling liquid in the power battery cooling loop and the weight coefficient;
and S334, calculating the target rotating speed of the compressor through linear interpolation by using the low speed value, the medium speed value, the high speed value and the weight coefficient of the compressor.
Further, the step of calculating the target rotation speed of the compressor further comprises the following steps:
the method comprises the following steps: searching and obtaining target power of the compressor corresponding to the target rotating speed of the compressor and the air conditioning pressure of the vehicle from a preset storage module, wherein the operation parameters further comprise the air conditioning pressure of the vehicle, and the preset storage module stores the corresponding relation between the target rotating speed of the compressor, the air conditioning pressure and the target power of the compressor;
step two: and controlling the compressor to operate according to the target rotating speed and the target power.
In one embodiment, the target power of the compressor is added to the preset power whenever the power battery cooling circuit is conducted to obtain the final power of the compressor, and then the compressor is controlled to operate according to the target rotating speed and the final power. Here, the preset power is any value in the range of 1.2KW to 1.5 KW. That is, only when the cockpit evaporator cooling circuit is conducted, the preset power does not need to be added on the basis of the target power of the compressor, and the operation of the compressor is directly controlled according to the target power of the compressor. When the power battery cooling circuit is conducted independently or is conducted together with the cockpit evaporator cooling circuit, the preset power is added on the basis of the target power of the compressor to obtain the final power, and the compressor is controlled to operate according to the final power.
In one embodiment, the step of calculating the target speed of the compressor is followed by the step of:
searching and obtaining the maximum limit rotating speed of the compressor corresponding to the ambient temperature of the vehicle and the speed of the vehicle from a preset storage module, wherein the operation parameters further comprise the speed of the vehicle;
and step four, controlling the compressor to operate according to the maximum limit rotating speed if the target rotating speed of the compressor is greater than the maximum limit rotating speed.
Here, since the NVH requires limiting the maximum rotation speed of the compressor, the influence of the compressor rotation speed on the NVH is small at a high vehicle speed, and the noise caused by the high rotation speed of the compressor is evaluated by the NVH at a low vehicle speed, thereby setting the maximum rotation speed limit of the compressor. The maximum speed limit of the compressor can be divided into 3 cases, the first is only the cooling requirement of the cockpit evaporator, the second is only the cooling requirement of the power battery, and the third is that both the cockpit evaporator and the power battery have the cooling requirement. The maximum limit rotational speed for the above 3 cases is also different. The invention fully considers the maximum limit rotating speed of the compressor and can ensure the safety of the whole vehicle.
Specifically, the correspondence relationship between the ambient temperature of the vehicle, the speed of the vehicle, and the maximum limit rotation speed of the compressor is as shown in table 2:
TABLE 2
Ambient temperature 18 20 25 30 40 45
Maximum limiting speed of evaporator cooling 4000 4000 6000 7000 8500 8500
Maximum limit rotating speed for cooling power battery 5500 5500 7500 8500 8500 8500
Evaporator with a heat exchanger&Maximum limit rotating speed for cooling power battery 5500 5500 7500 8500 8500 8500
Further, the maximum limit rotation speed of the compressor needs to be set also in the following cases:
(1) limiting the maximum limit rotating speed of the compressor when the compressor operates for the first time, wherein the initial operating time of the compressor is less than 200s, and the maximum limit rotating speed is 800 rpm;
(2) the broadband noise is reduced after the air conditioner is started at the speed of less than 10km/h, the maximum limit rotating speed of the compressor is set according to the time for starting the air conditioner, and after the starting time exceeds 50s, the limit is removed;
(3) and limiting the maximum rotating speed of the compressor after the required power of the compressor is reduced because the power battery is in a low-electric-quantity state. After the electric quantity of the power battery is reduced, the allowable power of the compressor is reduced, so that the difference between the required rotating speed and the actual rotating speed is overlarge, and the function is to limit the required rotating speed limit value by the actual rotating speed and limit the required rotating speed according to the distributed power.
(4) The maximum limit rotating speed of the compressor is limited by the local temperature or pressure of a vehicle system, and specifically comprises the following steps:
A. evaporator temperature limitation: the temperature of the evaporator is lower than 2 ℃, and the maximum limiting rotation speed of the compressor is 0;
B. limiting the water temperature of the engine: the transient water temperature exceeds 125 ℃, and the maximum limit rotating speed of the compressor is 0;
C. limiting the oil temperature of the engine: the steady-state oil temperature of the engine exceeds 130 ℃, and the maximum limiting rotating speed of the compressor is 0;
D. refrigerant pressure limiting: and the maximum limiting rotating speed of the compressor is 0 according to the condition that the input pressure of the whole vehicle exceeds 30 Bar.
Further, it is necessary to set a minimum limit rotation speed of the compressor, which is set to prevent the entire cooling system from being at risk of over-temperature, so that the minimum limit rotation speed is limited after the maximum limit rotation speed. There are generally 3 cases, the first: only the cooling requirement of the cockpit evaporator is met, and the minimum limit rotating speed of the compressor is obtained by looking up a table according to the ambient temperature; and the second method comprises the following steps: only the power battery needs to be cooled, and the minimum limit rotating speed of the compressor is obtained by looking up a table according to the ambient temperature; and the third is that: the cockpit evaporator and the power battery have cooling requirements at the same time, and the minimum limit rotating speed of the compressor is obtained by looking up a table according to the ambient temperature. Each of these 3 cases has a map table.
FIG. 6 is a schematic block diagram of a control system 100 for vehicle cooling according to one embodiment of the present invention. As shown in FIG. 6, in one particular embodiment, the control system 100 for vehicle cooling includes an acquisition unit 110 and a control module 120. The obtaining unit 110 is configured to obtain a temperature of the power battery and a temperature of the cabin evaporator, and the control module 120 includes a memory 121 and a processor 122, where the memory 121 stores a computing program, and the computing program is executed by the processor 122 to implement the control method in any one of the above embodiments. The processor 122 may be a Central Processing Unit (CPU), a digital processing unit, or the like. The processor 122 transceives data through the communication interface. The memory 121 is used to store programs executed by the processor 122. The memory 121 is any medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, and may be a combination of multiple memories 121. The above-described computing program may be downloaded from a computer-readable storage medium to a corresponding computing/processing device or to a computer or external storage device via a network (e.g., the internet, a local area network, a wide area network, and/or a wireless network).
The present invention also provides a vehicle equipped with the control system 100 described above. The control system 100 is not described in detail herein.
The invention defines the calculation of the target rotating speed and the target power of the compressor under the three conditions that only the cockpit evaporator has the cooling requirement, only the power battery has the cooling requirement, and the cockpit evaporator and the power battery simultaneously have the cooling requirement, and can select the proper target rotating speed and the target power of the compressor according to the different cooling requirements of the vehicle, thereby achieving the cooling purpose and simultaneously reducing the energy consumption, and ensuring the safety of the vehicle by setting the maximum limit rotating speed and the minimum limit rotating speed of the compressor.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. A method of controlling cooling of a vehicle, comprising:
acquiring operating parameters of a vehicle, wherein the operating parameters at least comprise the temperature of a power battery and the temperature of a cockpit evaporator;
conducting either a cabin evaporator cooling circuit and a power battery cooling circuit simultaneously or selectively according to the temperature of the power battery and the temperature of the cabin evaporator;
calculating a target rotating speed and a target power of a compressor in the vehicle according to the operating parameters by a preset calculation method so as to meet the cooling requirement of the cockpit evaporator cooling circuit and/or the power battery cooling circuit;
controlling the compressor to operate at the target speed and the target power to simultaneously cool the power battery and the cabin evaporator or selectively cool one of the power battery and the cabin evaporator.
2. The control method according to claim 1, wherein the step of calculating the target rotation speed and the target power of the compressor in the vehicle according to the preset calculation method based on the operation parameters specifically comprises:
and when only the power battery cooling loop is conducted and the temperature of the cooling liquid in the power battery cooling loop is greater than a first preset temperature, searching a preset storage module to obtain a target rotating speed of the compressor corresponding to the ambient temperature of the vehicle, wherein the operating parameters further comprise the temperature of the cooling liquid in the power battery cooling loop and the ambient temperature, and the preset storage module stores the corresponding relation between the ambient temperature and the target rotating speed of the compressor.
3. The control method according to claim 1, wherein the step of calculating the target rotation speed and the target power of the compressor in the vehicle according to the preset calculation method based on the operation parameters specifically comprises:
and when only the cockpit evaporator cooling circuit is conducted, calculating the target rotating speed of the compressor according to the temperature of the cockpit evaporator, the target temperature of the cockpit evaporator, the ambient temperature of the vehicle and the air conditioning air volume, wherein the operation parameters further comprise the target temperature of the cockpit evaporator, the ambient temperature and the air conditioning air volume.
4. The control method according to claim 3, wherein the step of calculating the target rotation speed of the compressor based on the temperature of the cabin evaporator, the target temperature of the cabin evaporator, the ambient temperature of the vehicle, and the air-conditioning air volume specifically comprises:
searching and obtaining an internal circulation rotating speed and an external circulation rotating speed of the compressor corresponding to the target temperature, the ambient temperature and the air conditioning air volume from a preset storage module, and calculating a PI rotating speed through a PI algorithm according to a difference value of the temperature of the cockpit evaporator and the target temperature, the ambient temperature and the air conditioning air volume, wherein the preset storage module stores corresponding relations between the target temperature, the ambient temperature and the air conditioning air volume and the internal circulation rotating speed and the external circulation rotating speed;
calculating a feedforward control rotation speed of the compressor by linear interpolation using the internal circulation rotation speed and the external circulation rotation speed;
adding the feedforward control rotation speed and the PI rotation speed to calculate a target rotation speed of the compressor.
5. The control method according to claim 1, wherein the step of calculating a target rotation speed and a target power of a compressor in the vehicle according to a preset calculation method based on the operation parameters further comprises:
when the power battery cooling circuit and the cockpit evaporator cooling circuit are conducted, calculating the predicted rotating speed of the compressor according to the temperature of the cockpit evaporator, the target temperature of the cockpit evaporator, the ambient temperature of the vehicle and the air conditioning air quantity, wherein the operation parameters further comprise the target temperature of the cockpit evaporator, the ambient temperature and the air conditioning air quantity;
searching and obtaining a low speed value, a medium speed value and a high speed value of the compressor corresponding to the predicted rotating speed and the ambient temperature from a preset storage module, and searching and obtaining a weight coefficient corresponding to the temperature of cooling liquid in the power battery cooling loop, wherein the operation parameters further comprise the temperature of the cooling liquid in the power battery cooling loop, and the preset storage module stores the corresponding relations between the predicted rotating speed and the ambient temperature and the low speed value, the medium speed value and the high speed value of the compressor, and the corresponding relations between the temperature of the cooling liquid in the power battery cooling loop and the weight coefficient;
and calculating the target rotating speed of the compressor by linear interpolation by using the low speed value, the medium speed value, the high speed value and the weight coefficient of the compressor.
6. The control method according to any one of claims 2 to 5, characterized by the step of calculating a target rotation speed of the compressor, followed by further comprising:
searching and obtaining a target power of the compressor corresponding to a target rotating speed of the compressor and an air conditioning pressure of the vehicle from a preset storage module, wherein the operating parameters further comprise the air conditioning pressure of the vehicle, and the preset storage module stores a corresponding relation between the target rotating speed of the compressor, the air conditioning pressure and the target power of the compressor;
and controlling the compressor to operate according to the target rotating speed and the target power.
7. The control method according to claim 6, wherein the step of searching a preset storage module for a target power of the compressor corresponding to a target speed of the compressor and an air conditioning pressure of the vehicle further comprises the following steps:
when the power battery cooling loop is conducted, adding the target power of the compressor and preset power to obtain the final power of the compressor;
and controlling the compressor to operate according to the target rotating speed and the final power.
8. The control method according to claims 2 to 5, characterized in that the step of calculating the target rotation speed of the compressor is followed by further comprising:
searching a preset storage module to obtain the maximum limit rotating speed of the compressor corresponding to the ambient temperature of the vehicle and the speed of the vehicle, wherein the operating parameters further comprise the speed of the vehicle;
and if the target rotating speed of the compressor is greater than the maximum limit rotating speed, controlling the compressor to operate according to the maximum limit rotating speed.
9. A control system for vehicle cooling, comprising:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring the operating parameters of the vehicle, and the operating parameters at least comprise the temperature of a power battery and the temperature of a cockpit evaporator; and
a control module comprising a memory and a processor, the memory having stored therein a computing program, the computing program when executed by the processor being for implementing the control method according to any one of claims 1-8.
10. A vehicle characterized in that the vehicle is equipped with the control system of claim 9.
CN202110154992.3A 2021-02-04 2021-02-04 Vehicle cooling control method and system and vehicle Active CN112902471B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202211104559.XA CN115468324B (en) 2021-02-04 2021-02-04 Control method and control system for cooling vehicle and vehicle
CN202110154992.3A CN112902471B (en) 2021-02-04 2021-02-04 Vehicle cooling control method and system and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110154992.3A CN112902471B (en) 2021-02-04 2021-02-04 Vehicle cooling control method and system and vehicle

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN202211104559.XA Division CN115468324B (en) 2021-02-04 2021-02-04 Control method and control system for cooling vehicle and vehicle

Publications (2)

Publication Number Publication Date
CN112902471A true CN112902471A (en) 2021-06-04
CN112902471B CN112902471B (en) 2022-11-01

Family

ID=76122413

Family Applications (2)

Application Number Title Priority Date Filing Date
CN202110154992.3A Active CN112902471B (en) 2021-02-04 2021-02-04 Vehicle cooling control method and system and vehicle
CN202211104559.XA Active CN115468324B (en) 2021-02-04 2021-02-04 Control method and control system for cooling vehicle and vehicle

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN202211104559.XA Active CN115468324B (en) 2021-02-04 2021-02-04 Control method and control system for cooling vehicle and vehicle

Country Status (1)

Country Link
CN (2) CN112902471B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113879072A (en) * 2021-11-02 2022-01-04 北京汽车集团越野车有限公司 Control method and device of vehicle-mounted air conditioning system
CN113915114A (en) * 2021-09-27 2022-01-11 岚图汽车科技有限公司 Protection method and protection system for electric compressor
CN116533771A (en) * 2023-06-26 2023-08-04 广州汽车集团股份有限公司 Vehicle control method and device, vehicle and storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102555726A (en) * 2010-12-29 2012-07-11 财团法人车辆研究测试中心 Multifunctional air conditioning system applied to heat management of electric vehicle
CN108819657A (en) * 2018-06-26 2018-11-16 上海加冷松芝汽车空调股份有限公司 A kind of new-energy automobile refrigeration control method
CN209553121U (en) * 2019-01-18 2019-10-29 吉利汽车研究院（宁波）有限公司 A kind of control system for heat management and vehicle for hybrid vehicle
CN110685893A (en) * 2019-11-05 2020-01-14 上海热翼智能科技有限公司 Method for controlling rotating speed of electric compressor of automobile air conditioner
CN111963414A (en) * 2020-07-02 2020-11-20 惠州市德赛西威汽车电子股份有限公司 Method and system for accurately calculating requested power and limited power of compressor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5860360B2 (en) * 2012-08-13 2016-02-16 カルソニックカンセイ株式会社 Thermal management system for electric vehicles
US9212599B2 (en) * 2012-10-04 2015-12-15 Magna E-Car Systems Of America, Inc. Control of compressor outlet pressure based on temperature of thermal load cooled by coolant in electric vehicle
DE102014001022A1 (en) * 2014-01-27 2015-07-30 Liebherr-Transportation Systems Gmbh & Co. Kg Vehicle cooling circuit
CN107132865B (en) * 2017-04-07 2020-03-27 上海蔚来汽车有限公司 Active cooling power calibration method and system for energy storage unit of test vehicle
CN109037840A (en) * 2018-08-02 2018-12-18 四川野马汽车股份有限公司 A kind of electric car liquid cooling battery system and control method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102555726A (en) * 2010-12-29 2012-07-11 财团法人车辆研究测试中心 Multifunctional air conditioning system applied to heat management of electric vehicle
CN108819657A (en) * 2018-06-26 2018-11-16 上海加冷松芝汽车空调股份有限公司 A kind of new-energy automobile refrigeration control method
CN209553121U (en) * 2019-01-18 2019-10-29 吉利汽车研究院（宁波）有限公司 A kind of control system for heat management and vehicle for hybrid vehicle
CN110685893A (en) * 2019-11-05 2020-01-14 上海热翼智能科技有限公司 Method for controlling rotating speed of electric compressor of automobile air conditioner
CN111963414A (en) * 2020-07-02 2020-11-20 惠州市德赛西威汽车电子股份有限公司 Method and system for accurately calculating requested power and limited power of compressor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113915114A (en) * 2021-09-27 2022-01-11 岚图汽车科技有限公司 Protection method and protection system for electric compressor
CN113879072A (en) * 2021-11-02 2022-01-04 北京汽车集团越野车有限公司 Control method and device of vehicle-mounted air conditioning system
CN113879072B (en) * 2021-11-02 2024-03-22 北京汽车集团越野车有限公司 Control method and device of vehicle-mounted air conditioning system
CN116533771A (en) * 2023-06-26 2023-08-04 广州汽车集团股份有限公司 Vehicle control method and device, vehicle and storage medium

Also Published As

Publication number Publication date
CN112902471B (en) 2022-11-01
CN115468324A (en) 2022-12-13
CN115468324B (en) 2023-12-05

Similar Documents

Publication Publication Date Title
CN112902471B (en) Vehicle cooling control method and system and vehicle
KR101534708B1 (en) Air conditioner system control method for vehicle
CN110588277B (en) Electric automobile thermal management method and system and vehicle
CN107433870B (en) Traction battery cooling system with coolant proportional valve
KR101776751B1 (en) Betterly cooling system for vehicle
CN110217071B (en) Vehicle thermal management control system and control method
KR101628120B1 (en) Betterly cooling system for vehicle
US8739564B2 (en) Controlling temperature of vehicle devices using a variable speed fan
US20170267056A1 (en) Control method of battery cooling system for vehicle
KR20170067502A (en) Betterly cooling system for vehicle
EP4296096A1 (en) Thermal management system for fuel cell hybrid electric vehicle, method, vehicle and medium
US11097635B2 (en) Battery heat management integration system and operation method thereof
US20160068041A1 (en) Integrated Cooling System Control Method
CN113165469A (en) Thermal management system for a vehicle
CN112909383A (en) Thermal management control method and system for cooling power battery
CN110015198A (en) Cooling fan control method for vehicle
WO2023070607A1 (en) Vehicle refrigeration control method and apparatus, and device, medium, and program product
CN115320321A (en) Control method of thermal management system, vehicle and related equipment
JP6344305B2 (en) Vehicle air conditioning control device
CN113799655A (en) Air-cooled battery pack thermal management system
US20190322159A1 (en) Vehicular air conditioning system
CN113895378B (en) Thermal management control method and device, storage medium and thermal management system
WO2023068011A1 (en) Heat storage management system
CN114435071B (en) Thermal management system, new energy vehicle, thermal management control method and controller
CN215705537U (en) Heat pump system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant