CN114179589B

CN114179589B - Control method and device of air conditioning system, air conditioning system and storage medium

Info

Publication number: CN114179589B
Application number: CN202111494133.5A
Authority: CN
Inventors: 吴会丽; 高彩辰; 李潇
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2023-08-18
Anticipated expiration: 2041-12-08
Also published as: CN114179589A

Abstract

The invention discloses a control method and device of an air conditioning system, the air conditioning system and a storage medium, wherein the method comprises the following steps: acquiring the speed of an automobile, and acquiring the system pressure and the system temperature of a double-drive compressor of an air conditioning system; determining the running state of the automobile according to the speed and duration of the automobile; based on the running state of the automobile and the running mode of the air conditioning system, the dual-drive compressor is controlled to switch between a belt pulley driving mode and an electric driving mode according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system. According to the scheme, the compressor of the air conditioning system is driven by two compressors, the running state of the air conditioning system is controlled by judging the running state of the vehicle, and the air conditioning running effect of the vehicle under different environments is met by switching different running states of the air conditioning system.

Description

Control method and device of air conditioning system, air conditioning system and storage medium

Technical Field

The invention belongs to the technical field of air conditioners, and particularly relates to a control method and device of an air conditioning system, the air conditioning system and a storage medium, in particular to a control method and device of a traveling and residence integrated air conditioner for a truck, the air conditioning system and the storage medium.

Background

With the development of freight logistics, long-distance freight drivers have increasingly high requirements on in-car comfort during parking.

In some schemes, various parking air conditioners are proposed, wherein an electric compressor is directly connected in parallel with an original vehicle system to realize the air conditioner requirement during parking, and the temporary modification quality is not controlled. When the truck air conditioner is driven, the air conditioner load is about 5kW, and when the vehicle is parked and rest at night, the air conditioner load is about 2kW, the air conditioner load is large, the compressor needs to be operated in a higher frequency section during driving, vibration noise can be increased, meanwhile, the air conditioner energy efficiency is low, and the compressor is operated in a lower frequency section during parking, so that the energy efficiency is also low. Therefore, a single compressor system cannot be operated efficiently in a large-span refrigeration demand, so that an air conditioning system cannot be operated in an efficient frequency band, and energy waste is caused.

The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.

Disclosure of Invention

The invention aims to provide a control method, a device, an air conditioning system and a storage medium of the air conditioning system, so as to solve the problem that energy waste is caused by the fact that the air conditioning system cannot operate in a high-efficiency frequency section because the single compressor system cannot operate in a high-efficiency frequency section when a large-span cold energy demand is caused when the air conditioning system adopts the single compressor system, achieve the effects of controlling the operation state of the air conditioning system through judging the running state of a vehicle and meeting the air conditioning operation effect of the vehicle under different environments through switching different operation states of the air conditioning system.

The invention provides a control method of an air conditioning system, in particular to a double-drive variable-capacity variable-frequency air conditioning system which is used as a traveling and residence integrated air conditioner for an automobile; the air conditioning system includes: a dual-drive compressor; the control method of the air conditioning system comprises the following steps: acquiring the speed of the automobile, and acquiring the system pressure and the system temperature of a double-drive compressor of the air conditioning system; determining a driving state of the automobile according to the speed and duration of the automobile; and controlling the dual-drive compressor to switch operation in a belt pulley driving mode and an electric driving mode according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system based on the running state of the automobile and the operation mode of the air conditioning system.

In some embodiments, the air conditioning system further comprises: the device comprises a four-way valve, a liquid storage tank, a condenser and an evaporator; the four-way valve is respectively communicated with the double-drive compressor, the condenser and the evaporator; the liquid storage tank is arranged between the condenser and the evaporator; a first throttle valve and a first bypass valve are arranged in parallel between the condenser and the liquid storage tank; a second bypass valve and a second bypass valve are arranged in parallel between the liquid storage tank and the evaporator; the dual driving compressor includes: a first solenoid valve and a second solenoid valve; determining a driving state of the automobile according to the speed of the automobile and the duration time of the automobile, wherein the driving state comprises the following steps: determining whether the speed of the automobile is equal to 0 and determining whether the duration of time that the speed of the automobile is equal to 0 is greater than or equal to a first set time; if the speed of the automobile is equal to 0 and the duration time of the speed of the automobile equal to 0 is determined to be greater than or equal to a first set time, determining that the running state of the automobile is a parking state; and if the speed of the automobile is not equal to 0 or the duration of time when the speed of the automobile is equal to 0 is smaller than a first set time, determining that the running state of the automobile is a running state.

In some embodiments, the mode of operation of the air conditioning system is a cooling mode; the system pressure of the dual driving compressor of the air conditioning system comprises: the high side pressure of the dual drive compressor; based on the running state of the automobile and the running mode of the air conditioning system, controlling the dual-drive compressor to switch running in a belt pulley driving mode and an electric driving mode according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system, comprising: determining whether a high-side pressure of the dual-drive compressor is greater than or equal to a set pressure when a driving state of the automobile is a driving state and the air conditioning system is operated in a cooling mode; if the high-pressure side pressure of the double-drive compressor is greater than or equal to the set pressure, a condensing fan matched with the condenser is controlled to be started, the first electromagnetic valve is controlled to be closed, the second electromagnetic valve is controlled to be opened, the first bypass valve is controlled to be opened, the second bypass valve is controlled to be closed, a motor electromagnetic clutch in the double-drive compressor is controlled to be disconnected, a belt pulley clutch is controlled to be attracted, and then the running state of the automobile is continuously determined according to the speed of the automobile and the duration time of the speed; and if the high-pressure side pressure of the double-drive compressor is smaller than the set pressure, controlling a condensing fan matched with the condenser to be closed, controlling the first electromagnetic valve to be closed, controlling the second electromagnetic valve to be opened, controlling the first bypass valve to be opened, controlling the second bypass valve to be closed, controlling a motor electromagnetic clutch in the double-drive compressor to be disconnected and controlling a belt pulley clutch to be attracted, and then continuously determining the running state of the automobile according to the speed of the automobile and the duration time of the automobile.

In some embodiments, the mode of operation of the air conditioning system is a cooling mode; the system temperature of the dual driving compressor of the air conditioning system comprises: a temperature difference between an indoor ambient temperature of the automobile and a target temperature of the air conditioning system; based on the running state of the automobile and the running mode of the air conditioning system, controlling the double-drive compressor to switch running in a belt pulley driving mode and an electric driving mode according to the system pressure and the system temperature of the double-drive compressor of the air conditioning system, and further comprising: when the running state of the automobile is a parking state and the air conditioning system is operated in a refrigerating mode, controlling a condensing fan matched with the condenser to start; determining whether a temperature difference between an indoor ambient temperature of the automobile and a target temperature of the air conditioning system is greater than or equal to a set temperature difference; if the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is greater than or equal to a set temperature difference, controlling the first electromagnetic valve to be closed, controlling the second electromagnetic valve to be opened, controlling the first bypass valve to be opened, controlling the second bypass valve to be closed, controlling the motor electromagnetic clutch in the dual-drive compressor to be engaged and the belt pulley clutch to be disengaged, and then continuously determining whether the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is greater than or equal to the set temperature difference; if the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is smaller than the set temperature difference, the first electromagnetic valve is controlled to be opened, the second electromagnetic valve is controlled to be closed, the first bypass valve is controlled to be opened, the second bypass valve is controlled to be closed, the electromagnetic clutch of the motor in the dual-drive compressor is controlled to be closed, the belt pulley clutch is controlled to be opened, and then whether the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is larger than or equal to the set temperature difference is continuously determined.

In some embodiments, the mode of operation of the air conditioning system is a heating mode; the system temperature of the dual driving compressor of the air conditioning system comprises: the outdoor ambient temperature of the automobile; based on the running state of the automobile and the running mode of the air conditioning system, controlling the double-drive compressor to switch running in a belt pulley driving mode and an electric driving mode according to the system pressure and the system temperature of the double-drive compressor of the air conditioning system, and further comprising: determining whether the outdoor ambient temperature of the automobile is greater than or equal to a set ambient temperature when the driving state of the automobile is a parking state and the air conditioning system is operated in a heating mode; if the outdoor environment temperature of the automobile is greater than or equal to the set environment temperature, controlling the first electromagnetic valve to be opened, controlling the second electromagnetic valve to be closed, controlling the first bypass valve to be closed, controlling the second bypass valve to be opened, controlling the motor electromagnetic clutch in the dual-drive compressor to be closed and the belt pulley clutch to be disconnected, and then continuously determining the running state of the automobile according to the speed of the automobile and the duration time of the automobile; if the outdoor environment temperature of the automobile is smaller than the set environment temperature, the first electromagnetic valve is controlled to be closed, the second electromagnetic valve is controlled to be opened, the first bypass valve is controlled to be closed, the second bypass valve is controlled to be opened, the motor electromagnetic clutch in the dual-drive compressor is controlled to be closed, the belt pulley clutch is controlled to be opened, and then the running state of the automobile is continuously determined according to the speed of the automobile and the duration time of the speed of the automobile.

In some embodiments, the air conditioning system further comprises: an electronic water pump and a wind mixing air door; the operation mode of the air conditioning system is a heating mode; the system temperature of the dual driving compressor of the air conditioning system comprises: an engine cooling temperature of the automobile, and an outdoor ambient temperature of the automobile; based on the running state of the automobile and the running mode of the air conditioning system, controlling the double-drive compressor to switch running in a belt pulley driving mode and an electric driving mode according to the system pressure and the system temperature of the double-drive compressor of the air conditioning system, and further comprising: determining whether the engine cooling temperature of the automobile is greater than or equal to a set cooling temperature under the condition that the running state of the automobile is a running state and the air conditioning system is operated in a heating mode; if the engine cooling temperature of the automobile is greater than or equal to the set cooling temperature, controlling the electronic water pump to be started, controlling the air mixing damper to be started, and then continuously determining the running state of the automobile according to the speed and the duration of the automobile; and if the engine cooling temperature of the automobile is smaller than the set cooling temperature, executing a control process of controlling the double-drive compressor to switch operation in a belt pulley driving mode and an electric driving mode in a standing state and a heating mode.

In accordance with the above method, the present invention provides a control device for an air conditioning system, in particular, a dual-drive variable capacity variable frequency air conditioning system, which is used as a vehicle residence integrated air conditioner; the air conditioning system includes: a dual-drive compressor; the control device of the air conditioning system comprises: an acquisition unit configured to acquire a vehicle speed of the vehicle, a system pressure and a system temperature of a dual-drive compressor of the air conditioning system; a control unit configured to determine a running state of the automobile according to a speed of the automobile and a duration thereof; the control unit is further configured to control the dual-drive compressor to switch operation in a pulley driving mode and an electric driving mode according to a system pressure and a system temperature of the dual-drive compressor of the air conditioning system based on a driving state of the automobile and an operation mode of the air conditioning system.

In some embodiments, the air conditioning system further comprises: the device comprises a four-way valve, a liquid storage tank, a condenser and an evaporator; the four-way valve is respectively communicated with the double-drive compressor, the condenser and the evaporator; the liquid storage tank is arranged between the condenser and the evaporator; a first throttle valve and a first bypass valve are arranged in parallel between the condenser and the liquid storage tank; a second bypass valve and a second bypass valve are arranged in parallel between the liquid storage tank and the evaporator; the dual driving compressor includes: a first solenoid valve and a second solenoid valve; the control unit determines the running state of the automobile according to the speed of the automobile and the duration time of the automobile, and comprises the following steps: determining whether the speed of the automobile is equal to 0 and determining whether the duration of time that the speed of the automobile is equal to 0 is greater than or equal to a first set time; if the speed of the automobile is equal to 0 and the duration time of the speed of the automobile equal to 0 is determined to be greater than or equal to a first set time, determining that the running state of the automobile is a parking state; and if the speed of the automobile is not equal to 0 or the duration of time when the speed of the automobile is equal to 0 is smaller than a first set time, determining that the running state of the automobile is a running state.

In some embodiments, the mode of operation of the air conditioning system is a cooling mode; the system pressure of the dual driving compressor of the air conditioning system comprises: the high side pressure of the dual drive compressor; the control unit controls the dual-drive compressor to switch operation in a belt pulley driving mode and an electric driving mode according to a system pressure and a system temperature of the dual-drive compressor of the air conditioning system based on a driving state of the automobile and an operation mode of the air conditioning system, and includes: determining whether a high-side pressure of the dual-drive compressor is greater than or equal to a set pressure when a driving state of the automobile is a driving state and the air conditioning system is operated in a cooling mode; if the high-pressure side pressure of the double-drive compressor is greater than or equal to the set pressure, a condensing fan matched with the condenser is controlled to be started, the first electromagnetic valve is controlled to be closed, the second electromagnetic valve is controlled to be opened, the first bypass valve is controlled to be opened, the second bypass valve is controlled to be closed, a motor electromagnetic clutch in the double-drive compressor is controlled to be disconnected, a belt pulley clutch is controlled to be attracted, and then the running state of the automobile is continuously determined according to the speed of the automobile and the duration time of the speed; and if the high-pressure side pressure of the double-drive compressor is smaller than the set pressure, controlling a condensing fan matched with the condenser to be closed, controlling the first electromagnetic valve to be closed, controlling the second electromagnetic valve to be opened, controlling the first bypass valve to be opened, controlling the second bypass valve to be closed, controlling a motor electromagnetic clutch in the double-drive compressor to be disconnected and controlling a belt pulley clutch to be attracted, and then continuously determining the running state of the automobile according to the speed of the automobile and the duration time of the automobile.

In some embodiments, the mode of operation of the air conditioning system is a cooling mode; the system temperature of the dual driving compressor of the air conditioning system comprises: a temperature difference between an indoor ambient temperature of the automobile and a target temperature of the air conditioning system; the control unit controls the dual-drive compressor to switch operation in a belt pulley driving mode and an electric driving mode according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system based on the running state of the automobile and the operation mode of the air conditioning system, and further comprises: when the running state of the automobile is a parking state and the air conditioning system is operated in a refrigerating mode, controlling a condensing fan matched with the condenser to start; determining whether a temperature difference between an indoor ambient temperature of the automobile and a target temperature of the air conditioning system is greater than or equal to a set temperature difference; if the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is greater than or equal to a set temperature difference, controlling the first electromagnetic valve to be closed, controlling the second electromagnetic valve to be opened, controlling the first bypass valve to be opened, controlling the second bypass valve to be closed, controlling the motor electromagnetic clutch in the dual-drive compressor to be engaged and the belt pulley clutch to be disengaged, and then continuously determining whether the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is greater than or equal to the set temperature difference; if the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is smaller than the set temperature difference, the first electromagnetic valve is controlled to be opened, the second electromagnetic valve is controlled to be closed, the first bypass valve is controlled to be opened, the second bypass valve is controlled to be closed, the electromagnetic clutch of the motor in the dual-drive compressor is controlled to be closed, the belt pulley clutch is controlled to be opened, and then whether the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is larger than or equal to the set temperature difference is continuously determined.

In some embodiments, the mode of operation of the air conditioning system is a heating mode; the system temperature of the dual driving compressor of the air conditioning system comprises: the outdoor ambient temperature of the automobile;

the control unit controls the dual-drive compressor to switch operation in a belt pulley driving mode and an electric driving mode according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system based on the running state of the automobile and the operation mode of the air conditioning system, and further comprises: determining whether the outdoor ambient temperature of the automobile is greater than or equal to a set ambient temperature when the driving state of the automobile is a parking state and the air conditioning system is operated in a heating mode; if the outdoor environment temperature of the automobile is greater than or equal to the set environment temperature, controlling the first electromagnetic valve to be opened, controlling the second electromagnetic valve to be closed, controlling the first bypass valve to be closed, controlling the second bypass valve to be opened, controlling the motor electromagnetic clutch in the dual-drive compressor to be closed and the belt pulley clutch to be disconnected, and then continuously determining the running state of the automobile according to the speed of the automobile and the duration time of the automobile; if the outdoor environment temperature of the automobile is smaller than the set environment temperature, the first electromagnetic valve is controlled to be closed, the second electromagnetic valve is controlled to be opened, the first bypass valve is controlled to be closed, the second bypass valve is controlled to be opened, the motor electromagnetic clutch in the dual-drive compressor is controlled to be closed, the belt pulley clutch is controlled to be opened, and then the running state of the automobile is continuously determined according to the speed of the automobile and the duration time of the speed of the automobile.

In some embodiments, the air conditioning system further comprises: an electronic water pump and a mixing air door; the operation mode of the air conditioning system is a heating mode; the system temperature of the dual driving compressor of the air conditioning system comprises: an engine cooling temperature of the automobile, and an outdoor ambient temperature of the automobile; the control unit controls the dual-drive compressor to switch operation in a belt pulley driving mode and an electric driving mode according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system based on the running state of the automobile and the operation mode of the air conditioning system, and further comprises: determining whether the engine cooling temperature of the automobile is greater than or equal to a set cooling temperature under the condition that the running state of the automobile is a running state and the air conditioning system is operated in a heating mode; if the engine cooling temperature of the automobile is greater than or equal to the set cooling temperature, controlling the electronic water pump to be started, controlling the air mixing damper to be started, and then continuously determining the running state of the automobile according to the speed and the duration of the automobile; and if the engine cooling temperature of the automobile is smaller than the set cooling temperature, executing a control process of controlling the double-drive compressor to switch operation in a belt pulley driving mode and an electric driving mode in a standing state and a heating mode.

In accordance with another aspect of the present invention, there is provided an air conditioning system comprising: the control device of the air conditioning system is described above.

In accordance with the above method, a further aspect of the present invention provides a storage medium, where the storage medium includes a stored program, and when the program runs, the device where the storage medium is controlled to execute the control method of the air conditioning system described above.

According to the scheme, the compressor is driven by two compressors in the air conditioning system, the vehicle state is judged according to the vehicle speed, the air conditioning operation mode is obtained by combining the pressure and the temperature equivalent of the air conditioning system and combining the comprehensive judgment result, the stable operation switching of the resident integrated air conditioning system in various environments such as truck driving, parking and low-temperature parking is realized, and the efficient operation of the air conditioning system under different air conditioning load requirements is realized; therefore, the compressor of the air conditioning system adopts the double-drive compressor, the running state of the air conditioning system is controlled through judging the running state of the vehicle, and the air conditioning running effect of the vehicle in different environments is met through switching of different running states of the air conditioning system, so that the energy-saving effect is achieved, and the problem that the single compressor system cannot run efficiently when the large-span cold energy is required is solved.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

The technical scheme of the invention is further described in detail through the drawings and the embodiments.

Drawings

FIG. 1 is a flow chart of an embodiment of a control method of an air conditioning system according to the present invention;

FIG. 2 is a flow chart of an embodiment of determining a driving status of an automobile in the method of the present invention;

FIG. 3 is a schematic flow chart of an embodiment of the method of the present invention for controlling the dual-drive compressor to switch between a pulley driving mode and an electric driving mode in a driving state and a cooling mode;

FIG. 4 is a schematic flow chart of an embodiment of the method of the present invention for controlling the dual drive compressor to switch between a pulley-driven mode and an electric-driven mode in a stationary state and a cooling mode;

FIG. 5 is a schematic flow chart of an embodiment of the method of the present invention for controlling the dual drive compressor to switch between a pulley driving mode and an electric driving mode in a stationary state and a heating mode;

FIG. 6 is a schematic flow chart of an embodiment of the method of the present invention for controlling the dual-drive compressor to switch between a pulley driving mode and an electric driving mode in a driving state and a heating mode;

FIG. 7 is a schematic diagram of a control device of an air conditioning system according to an embodiment of the present invention;

FIG. 8 is a schematic view of an embodiment of a truck air conditioner according to the present invention;

FIG. 9 is a schematic diagram of a control logic of a control method of a vehicle air conditioner according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of a heating control logic of an embodiment of a control method of a truck-mounted air conditioner according to the present invention;

fig. 11 is a schematic structural view of a compressor in a car-mounted traveling and parking integrated air conditioner according to an embodiment of the present invention.

In the embodiment of the present invention, reference numerals are as follows, in combination with the accompanying drawings:

100-compressors, 101, 102-electromagnetic valves, 103-vapor-liquid separators, 104-pulley clutches, 105-motor electromagnetic clutches, 106-first cylinders, 107-second cylinders, 108-exhaust pipes and 109-air suction pipes; 200-four-way valve, 300-liquid storage tank, 400-first throttle valve, 401-first bypass valve, 500-second throttle valve, 501-second bypass valve, 600-condenser, 601-condensing fan, 700-evaporator, 701-blower, 702-air mixing damper, 703-air conditioning case shell, 800-warm air water tank, 801-electronic water pump, 802-engine cooling case; 102-an acquisition unit; 104-a control unit.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In other solutions, the parking air conditioner employs a dual compressor system, but the air conditioning pipeline of the dual compressor system is complex. The two compressors share one air conditioning system, and one compressor is easy to be damaged too early due to oil shortage because of different oil return capacities.

According to an embodiment of the present invention, there is provided a control method of an air conditioning system, as shown in fig. 1, which is a schematic flow chart of an embodiment of the method of the present invention. The air conditioning system, in particular to a double-drive variable-capacity variable-frequency air conditioning system, is used as a traveling and residence integrated air conditioner for automobiles. The air conditioning system includes: a dual drive compressor. The control method of the air conditioning system comprises the following steps: step S110 to step S130.

At step S110, the vehicle speed of the vehicle is acquired, and the system pressure and the system temperature of the dual-drive compressor of the air conditioning system are acquired.

At step S120, a driving state of the automobile is determined according to the speed of the automobile and the duration thereof.

In some embodiments, the air conditioning system further comprises: four-way valve 200, liquid storage tank 300, condenser 600, and evaporator 700. The four-way valve 200 is respectively communicated with the dual driving compressor, the condenser 600, and the evaporator 700. The liquid storage tank 300 is disposed between the condenser 600 and the evaporator 700.

Between the condenser 600 and the liquid storage tank 300, a first throttle valve 400 and a first bypass valve 401 are provided in parallel. Between the reservoir 300 and the evaporator 700, a second bypass valve 500 and a second bypass valve 501 are provided in parallel.

Fig. 8 is a schematic structural view of an embodiment of a truck-mounted air conditioner according to the present invention. As shown in fig. 8, the vehicle-mounted traveling and parking integrated air conditioner includes: compressor 100, four-way valve 200, liquid reservoir 300, first throttle valve 400, first bypass valve 401, second throttle valve 500, second bypass valve 501, condenser 600, condensing fan 601, evaporator 700, blower 701, air conditioning case 703, and warm air water tank 800.

In the example shown in fig. 8, the four-way valve 200 has four ports, namely, port a, port b, port c and port d, wherein port a of the four-way valve 200 is connected to the discharge pipe of the compressor 100, port b of the four-way valve 200 is connected to the refrigerant inlet pipe of the condenser 600, port c of the four-way valve 200 is connected to the suction pipe of the compressor 100, port d of the four-way valve 200 is connected to the liquid outlet pipe of the evaporator 700, the liquid outlet pipe of the condenser 600 is connected to the first throttle 400, the inlet and outlet pipes of the first bypass valve 401 are connected to both sides of the first throttle 400 to short-circuit the first throttle 400, the ports at both ends of the liquid storage tank 300 are connected to the first throttle 400 and the second throttle 500, respectively, the inlet and outlet pipes of the second bypass valve 501 are connected to both sides of the second throttle 500 to short-circuit the second throttle 500, and the second throttle 500 is connected to the liquid inlet pipe of the evaporator 700.

The dual driving compressor includes: a first solenoid valve and a second solenoid valve. A first solenoid valve, such as solenoid valve 101, and a second solenoid valve, such as solenoid valve 102.

In the example shown in fig. 8, the compressor 100 is a dual-drive compressor compatible with belt pulley and motor drive, and the air conditioning system operates efficiently when different driving modes of the compressor 100 can realize different air conditioning load demands during driving and parking. Fig. 11 is a schematic structural view of a compressor in a car-mounted traveling and parking integrated air conditioner according to an embodiment of the present invention. As shown in fig. 11, the compressor 100 includes a solenoid valve 101, a solenoid valve 102, a vapor-liquid separator 103, a pulley clutch 104, a motor electromagnetic clutch 105, a first cylinder 106, a second cylinder 107, an exhaust pipe 108, and an intake pipe 109.

The compressor 100 has 2 cylinders in total, a fixed cylinder, a variable capacity cylinder, and a second cylinder 107 is the variable capacity cylinder of this case, and when the compressor single cylinder is operated, solenoid valve 101 is opened, solenoid valve 102 is closed, and the air inlet and the pressure of gas vent of second cylinder 107 are unanimous, and all are exhaust pressure, and cylinder locating pin can lock the cylinder gleitbretter, and second cylinder 107 can't compress, and when the compressor double-cylinder is operated, solenoid valve 101 is closed, solenoid valve 102 is opened, and low-pressure gas is inhaled to second cylinder 107, realizes compression function to the compressor carries out parallel bars compressor realization and increases the volume.

In some embodiments, the specific process of determining the driving state of the automobile in step S120 according to the speed of the automobile and the duration thereof is described in the following exemplary description.

The following is a schematic flow chart of an embodiment of determining the driving status of the automobile in the method of the present invention in connection with fig. 2, and further describes a specific process of determining the driving status of the automobile in step S120, which includes: step S210 to step S230.

Step S210, determining whether the vehicle speed of the vehicle is equal to 0, and determining whether the duration of time for which the vehicle speed of the vehicle is equal to 0 is greater than or equal to a first set time. The first set time is 10min.

Step S220, if the vehicle speed of the vehicle is equal to 0 and the duration of time when the vehicle speed of the vehicle is equal to 0 is determined to be greater than or equal to the first set time, determining that the driving state of the vehicle is a parking state.

In step S230, if the vehicle speed of the vehicle is not equal to 0 or the duration of time when the vehicle speed of the vehicle is equal to 0 is less than the first set time, the driving state of the vehicle is determined to be the driving state.

In the integrated air conditioner for truck and parking shown in fig. 8, the compressor 100 is a dual-drive compressor with both belt pulley drive and electric drive, and in addition, compared with the parking air conditioning system in the related scheme, the four-way valve 200 is provided, so that the heating requirement during parking can be realized, and meanwhile, when the cooling water temperature of the engine in the early stage of driving in winter does not meet the heating condition, the heating requirement of the cockpit is met by the air conditioning system first, and the process of idling and warming the engine is saved.

When the vehicle runs, the heat exchange of convection of air on the surface of the vehicle cabin is aggravated, the heat exchange between the temperature in the vehicle cabin and the temperature outside the vehicle is aggravated, the sunlight is unavoidable during running, the illumination intensity in noon is high, the load of the air conditioner in the vehicle cabin is increased, when the vehicle is parked, a driver consciously selects a shady environment or adjusts the direction of the head to avoid the sunlight, part of drivers can pull up curtains in the vehicle cabin for better rest, and the operations can reduce the requirement of the vehicle cabin on the load of the air conditioner.

Fig. 9 is a schematic diagram of a cooling control logic of an embodiment of a control method of a vehicle-mounted integrated air conditioner according to the present invention, and fig. 10 is a schematic diagram of a heating control logic of an embodiment of a control method of a vehicle-mounted integrated air conditioner according to the present invention. As shown in fig. 9 and 10, the control method of the truck-used traveling and residence integrated air conditioner provided by the scheme of the invention comprises the following steps: after receiving the start command, the air conditioner controller enters a step S1 to judge the requirement of an air conditioner operation mode, if the operation requirement is a refrigeration mode, the air conditioner controller enters a step S2, and if the operation requirement is not the refrigeration mode, the operation requirement is a heating mode, the air conditioner controller enters a step S12.

And S2, judging the running state of the vehicle by reading the value of a vehicle speed sensor, and judging the duration time of the vehicle speed, so that the condition that the air conditioning system enters a parking state when the vehicle passes through a congestion road section with equal traffic lights can be eliminated, and the running mode of the air conditioning system is frequently switched, so that the reliable running of the air conditioning system is affected. The control method can be used for frequently switching the operation mode of the air conditioning system, and judging the vehicle speed state to obtain the running and parking state of the vehicle so as to judge the requirement of the vehicle on the air conditioner. Judging whether the value of the vehicle speed sensor is equal to 0 and the duration of the value is more than or equal to 10 minutes: if yes, go to step S7, if not, go to step S3.

The control method of the truck traveling and parking integrated air conditioner mainly controls the operation state of an air conditioning system through judging the traveling state of a vehicle, and meets the requirements of the truck on the operation effect of the air conditioner in different environments through switching different operation states of the air conditioning system.

At step S130, based on the running state of the automobile and the operation mode of the air conditioning system, the dual driving compressor is controlled to switch operation in the pulley driving mode and the electric driving mode according to the system pressure and the system temperature of the dual driving compressor of the air conditioning system.

The invention provides a control method of a traveling and parking integrated air conditioner for a truck, in particular to a control method of a dual-drive variable-capacity variable-frequency air conditioner system for the truck, which is related to the traveling state of the whole truck. Specifically, the vehicle state is judged through the vehicle speed, the pressure, the temperature and the like of the air conditioning system are combined, the air conditioning operation mode is obtained through the comprehensive judgment result, the stable operation switching of the resident integrated air conditioning system in various environments such as truck driving, parking and low-temperature parking is realized, double heat sources are realized during heating in winter, the waste heat of an engine is utilized during driving, and the heat pump air conditioner is utilized during parking for heating.

In some embodiments, the mode of operation of the air conditioning system is a cooling mode. The system pressure of the dual driving compressor of the air conditioning system comprises: the high side pressure of the dual drive compressor.

In step S130, based on the running state of the automobile and the running mode of the air conditioning system, according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system, the dual-drive compressor is controlled to switch between running in a pulley driving mode and an electric driving mode, including: the driving state and the refrigerating mode control the process of switching operation of the double-drive compressor in a belt pulley driving mode and an electric driving mode, and the method specifically comprises the following steps:

the following is a schematic flow chart of an embodiment of controlling the dual-drive compressor to switch between a pulley driving mode and an electric driving mode in the driving state and the cooling mode in the method of the present invention shown in fig. 3, which further describes a specific process of controlling the dual-drive compressor to switch between the pulley driving mode and the electric driving mode in the driving state and the cooling mode, including: step S310 to step S330.

Step S310, determining whether the high-pressure side pressure of the dual-drive compressor is greater than or equal to a set pressure when the driving state of the automobile is a driving state and the air conditioning system is operated in a cooling mode.

In step S320, if the high-side pressure of the dual-drive compressor is greater than or equal to the set pressure, the condensing fan 601 matched with the condenser 600 is controlled to be started, the first electromagnetic valve is controlled to be closed, the second electromagnetic valve is controlled to be opened, the first bypass valve 401 is controlled to be opened, the second bypass valve 501 is controlled to be closed, and the electromagnetic clutch of the motor in the dual-drive compressor is controlled to be disconnected and the pulley clutch is controlled to be engaged, and then the running state of the automobile is determined according to the speed and the duration time of the automobile.

And step S330, if the high-pressure side pressure of the dual-drive compressor is smaller than the set pressure, controlling the condensing fan 601 matched with the condenser 600 to be turned off, controlling the first electromagnetic valve to be turned off, controlling the second electromagnetic valve to be turned on, controlling the first bypass valve 401 to be turned on, controlling the second bypass valve 501 to be turned off, controlling the motor electromagnetic clutch in the dual-drive compressor to be turned off and the pulley clutch to be engaged, and then continuously determining the driving state of the automobile according to the speed and the duration of the automobile.

As shown in fig. 9 and 10, the control method for the truck-used row-resident integrated air conditioner provided by the scheme of the invention further comprises the following steps:

In step S3, the condenser 600 of the air conditioning system is placed at the front end of the vehicle, and when the vehicle is running at high speed, the head-on wind speed passing through the grille is sufficient to meet the heat exchange requirement of the air conditioning system, and the condenser fan 601 is not required to be turned on.

If simply judging that the vehicle speed controls the on/off of the condensing fan 601, the condensing fan 601 may be turned on in time or in advance at a low vehicle speed, resulting in energy waste, and the reliability of the air conditioning system may be affected in serious cases, the more intuitive and reliable way is to control the on/off of the condensing fan 601 through the pressure value of the high-pressure side of the air conditioning system, when the pressure value of the high-pressure side of the air conditioning system is detected to be higher than the set pressure aMPa, it is determined that the condensing effect of the condensing side of the air conditioner is insufficient, the condensing fan 601 needs to be turned on, then step S5 is executed, and if the pressure of the high-pressure side is detected to be not more than the set pressure aMPa, then step S4 is executed, and the control method can avoid the untimely on of the condensing fan 601 or the energy waste caused by the early on.

Step S4, when the vehicle runs, the air conditioner controller sends out an instruction to the head-on wind speed of the condenser 600 to meet the heat exchange requirement of the condenser 600, the condensing fan 601 is turned off, and the logic operation enters step S6.

In step S5, because the wind speed at the front of the condenser 600 does not meet the requirement when the vehicle is running, the convective heat transfer caused by the running of the vehicle of the condenser 600 alone cannot meet the heat transfer requirement, the condensing fan 601 needs to be turned on, and the logic operation proceeds to step S6.

Step S6, judging from the logic, wherein the running mode of the air conditioning system is a running state, the air conditioning load requirement is large, the compressor 100 needs to run in a double-cylinder mode, and meanwhile, the automobile engine runs.

The compressor 100 can be driven by a belt pulley, and a valve and a clutch in an air conditioning system are operated, so that the solenoid valve 101 of the compressor 100 is closed and the solenoid valve 102 is opened. Both cylinders of the compressor 100 are put into operation, and the first bypass valve 401 is opened and the second bypass valve 501 is closed. As the flow rate of the refrigerant involved in the air conditioning system cycle increases, the refrigerant stored in the accumulator 300 also participates in the air conditioning system cycle, the motor electromagnetic clutch 105 is disconnected, and the pulley clutch 104 is engaged. The air conditioning system carries out a belt pulley double-cylinder refrigeration mode, the logic operation of the air conditioning system is turned to step S1, and the operation of the next cycle is started. The control logic judges the refrigerating requirement of the cabin by accurately judging the running state of the automobile, the belt pulley driving mode is started, the running frequency of the compressor 100 changes along with the speed of the automobile, and the air conditioning system enters a large-cooling-capacity output mode to meet the air conditioning requirement when the automobile runs.

In some embodiments, the mode of operation of the air conditioning system is a cooling mode. The system temperature of the dual driving compressor of the air conditioning system comprises: a temperature difference between an indoor ambient temperature of the vehicle and a target temperature of the air conditioning system.

In step S130, based on the running state of the automobile and the running mode of the air conditioning system, according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system, the dual-drive compressor is controlled to switch between running in a pulley driving mode and an electric driving mode, and further includes: the process of controlling the double-drive compressor to switch operation in a belt pulley driving mode and an electric driving mode in a standing state and a refrigeration mode is specifically as follows:

the following is a schematic flow chart of an embodiment of controlling the dual-drive compressor to switch between a pulley driving mode and an electric driving mode in a standing state and a cooling mode in the method of the present invention in connection with fig. 4, which further describes a specific process of controlling the dual-drive compressor to switch between a pulley driving mode and an electric driving mode in a standing state and a cooling mode, including: step S410 to step S440.

In step S410, when the running state of the vehicle is a parking state and the air conditioning system is operated in the cooling mode, the condensing fan 601 provided in association with the condenser 600 is controlled to be started.

In step S420, it is determined whether the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is greater than or equal to a set temperature difference (e.g., set temperature difference b).

Step S430, if the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is greater than or equal to the set temperature difference, controlling the first electromagnetic valve to close, controlling the second electromagnetic valve to open, controlling the first bypass valve 401 to open, controlling the second bypass valve 501 to close, controlling the electromagnetic clutch of the motor in the dual-drive compressor to close and the pulley clutch to open, and then continuing to determine whether the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is greater than or equal to the set temperature difference.

Step S430, if the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is smaller than the set temperature difference, controlling the first electromagnetic valve to open, controlling the second electromagnetic valve to close, controlling the first bypass valve 401 to open, controlling the second bypass valve 501 to close, controlling the electromagnetic clutch of the motor in the dual-drive compressor to be engaged and the pulley clutch to be disengaged, and then continuously determining whether the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is greater than or equal to the set temperature difference.

and S7, judging the vehicle speed and the duration to obtain a parking state of the vehicle, running the air conditioning system in the parking state, and executing the step S8.

In step S8, because the vehicle is parked, the heat exchange of the condenser 600 cannot utilize the convection heat exchange of the vehicle running, the condensing fan 601 needs to be turned on to cool and dissipate the heat of the condenser 600 of the air conditioning system, and the logic operation proceeds to step S9.

And S9, judging that the vehicle is in a parking state, wherein the larger the difference Deltat between the ambient temperature in the vehicle cabin and the operation target temperature of the air conditioning system is, the higher the initial temperature in the vehicle cabin is, the larger the air conditioning load demand is, the air conditioning system needs to operate under full load to meet the temperature drop demand in the initial stage, and if the difference Deltat between the ambient temperature and the operation target temperature is smaller than a certain value, such as a set temperature difference b, the air conditioning system proves that the vehicle cabin is general to the air conditioning load demand, and the air conditioning system can operate according to the single-cylinder state to meet the load demand.

Wherein, the value of a pair of values b of the difference Deltat between the ambient temperature in the cabin and the running target temperature of the air conditioning system is recommended to be 3-5 ℃.

And when the difference Deltat between the ambient temperature in the cabin and the running target temperature of the air conditioning system is more than or equal to the set value b, executing the step S10, otherwise, executing the step S11.

Step S10, the electromagnetic valve 101 of the air conditioning system is closed, the electromagnetic valve 102 is opened, the air conditioning load requirement is large, the compressor 100 enters a double-cylinder operation mode, the rapid temperature drop requirement of a vehicle cabin is met, and the comfort experience is improved. The first bypass valve 401 is open and the second bypass valve 501 is closed. The motor electromagnetic clutch 105 is disconnected and the pulley clutch 104 is engaged. The air conditioning system is in a speed belt pulley double-cylinder refrigeration mode.

Step S11, the electromagnetic valve 101 of the air conditioning system is opened, the electromagnetic valve 102 is closed, the air conditioning load is common, and the single-cylinder operation of the compressor 100 meets the refrigerating requirement of the vehicle cabin. The first bypass valve 401 is open and the second bypass valve 501 is closed. The motor electromagnetic clutch 105 is engaged, and the pulley clutch 104 is disengaged. The air conditioning system enters a parking refrigeration single-cylinder operation mode. The control logic mainly solves the problems that when a vehicle is parked, the power supply of an air conditioning system is provided by a storage battery of the vehicle, the battery capacity is limited, the air conditioning system needs to be energy-saving and efficient as much as possible, and the compressor is controlled to operate efficiently in the earlier stage of meeting the refrigeration requirement of a vehicle cabin.

After the execution of step S10 or step S11 is completed, the control logic returns to step S8 and then enters the next cycle.

In some embodiments, the mode of operation of the air conditioning system is a heating mode. The system temperature of the dual driving compressor of the air conditioning system comprises: the outdoor ambient temperature of the automobile.

In step S130, based on the running state of the automobile and the running mode of the air conditioning system, according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system, the dual-drive compressor is controlled to switch between running in a pulley driving mode and an electric driving mode, and further includes: the process of switching operation of the double-drive compressor in a belt pulley driving mode and an electric driving mode is controlled in a standing state and a heating mode, and the method specifically comprises the following steps:

the following is a schematic flow chart of an embodiment of controlling the dual-drive compressor to switch between a pulley driving mode and an electric driving mode in a standing state and a heating mode in the method of the present invention in connection with fig. 5, which further describes a specific process of controlling the dual-drive compressor to switch between a pulley driving mode and an electric driving mode in a standing state and a heating mode, including: step S510 to step S530.

Step S510, determining whether the outdoor ambient temperature of the automobile is greater than or equal to a set ambient temperature when the running state of the automobile is a parking state and the air conditioning system is operating in a heating mode.

Step S520, if the outdoor ambient temperature of the automobile is greater than or equal to the set ambient temperature, controlling the first electromagnetic valve to open, controlling the second electromagnetic valve to close, controlling the first bypass valve 401 to close, controlling the second bypass valve 501 to open, controlling the electromagnetic clutch of the motor in the dual-drive compressor to be engaged and the pulley clutch to be disengaged, and then continuing to determine the running state of the automobile according to the speed of the automobile and the duration thereof.

And step S530, if the outdoor ambient temperature of the automobile is less than the set ambient temperature, controlling the first electromagnetic valve to close, controlling the second electromagnetic valve to open, controlling the first bypass valve 401 to close, controlling the second bypass valve 501 to open, controlling the electromagnetic clutch of the motor in the dual-drive compressor to be engaged and the pulley clutch to be disengaged, and then continuing to determine the running state of the automobile according to the speed of the automobile and the duration time thereof.

and step S12, judging that the air conditioning system enters a heating mode.

And S13, heating by using engine cooling water in a running state of the heating truck in winter, and heating by using a heat pump air conditioning system in a parking state of the vehicle. After the heat demand is determined, the parking state of the vehicle needs to be determined, the value=0 of the vehicle speed sensor is determined, the duration is not less than 10min, the step S14 is executed when the condition is met, and otherwise, the step S17 is executed. Here, the purpose of the determination condition is consistent with the cooling mode, and will not be described again.

Step S14, when heating in winter, the outer ring temperature has larger influence on the operation effect of the air conditioner, especially has larger influence on the operation of the pure heat pump in a parking state, if the outer ring temperature is lower, the automobile cabin has larger demand on heating load, the air conditioner system needs to operate a double-cylinder mode, and whether the outer ring temperature is more than or equal to-5 ℃ is judged: if yes, execution S15 is executed, otherwise execution S16 is executed.

In step S15, the solenoid valve 101 of the air conditioning system is opened, and the solenoid valve 102 is closed. The first bypass valve 401 is closed and the second bypass valve 501 is opened. The motor electromagnetic clutch 105 is engaged, and the pulley clutch 104 is disengaged. The air conditioning system enters an electric double-cylinder heating mode.

Step S16, the solenoid valve 101 is opened, and the solenoid valve 102 is closed. The first bypass valve 401 is closed and the second bypass valve 501 is opened. The motor electromagnetic clutch 105 is engaged, and the pulley clutch 104 is disengaged. The air conditioning system enters an electric single-cylinder heating mode.

In some embodiments, the air conditioning system further comprises: an electronic water pump 801 and a mixing damper 702. As shown in fig. 8, the vehicle traveling and parking integrated air conditioner further includes: an electronic water pump 801, an engine cooling box 802, and a wind mixing damper 702.

The operation mode of the air conditioning system is a heating mode. The system temperature of the dual driving compressor of the air conditioning system comprises: the engine cooling temperature of the automobile, and the outdoor ambient temperature of the automobile.

In step S130, based on the running state of the automobile and the running mode of the air conditioning system, according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system, the dual-drive compressor is controlled to switch between running in a pulley driving mode and an electric driving mode, and further includes: the driving state and the heating mode control the process of switching operation of the double-drive compressor in a belt pulley driving mode and an electric driving mode, and the method specifically comprises the following steps:

the following is a schematic flow chart of an embodiment of controlling the dual-drive compressor to switch between a pulley driving mode and an electric driving mode in a driving state and a heating mode in the method of the present invention in connection with fig. 6, which further describes a specific process of controlling the dual-drive compressor to switch between a pulley driving mode and an electric driving mode in a driving state and a heating mode, including: step S610 to step S630.

In step S610, when the driving state of the automobile is a driving state and the air conditioning system is operating in the heating mode, it is determined whether the engine cooling temperature of the automobile is greater than or equal to a set cooling temperature.

In step S620, if the engine cooling temperature of the vehicle is greater than or equal to the set cooling temperature, the electronic water pump 801 is controlled to be turned on, the air mixing damper 702 is controlled to be turned on, and then the running state of the vehicle is determined continuously according to the speed of the vehicle and the duration thereof.

Step S630, if the engine cooling temperature of the automobile is less than the set cooling temperature, executing a control process of controlling the dual-drive compressor to switch operation in a pulley driving mode and an electric driving mode in a standing state and a heating mode.

in step S17, when the vehicle runs in winter, in the initial starting stage of the vehicle, the temperature of the cooling water of the engine is low, at this time, the heating cycle is forced to be started, the engine is possibly damaged, meanwhile, the water temperature is low, the air outlet temperature is also low, and the comfort experience is poor, so that the temperature of the cooling water of the engine needs to be judged, and if the temperature of the cooling water is low, the heat pump air conditioner is started to meet the heating requirement of the cabin.

And judging that the cooling water temperature t of the engine is more than or equal to the set water temperature d, executing S18, and executing S14 if the cooling water temperature t is not more than the set water temperature d. The value range of the pair of values d of the cooling water temperature t is recommended to be 35-45 ℃. The section is mainly used for saving the idling warm-up process.

Step 18, the temperature t of cooling water of the engine meets the heating requirement, at the moment, the electronic water pump 801 is turned on, the air mixing damper 702 is turned on, and the mode of heating by using the cooling water of the engine is entered.

After the execution of steps S15, S16 and S18 is completed, the control logic returns to step S12 and then enters the next cycle.

In the scheme of the invention, a set of air conditioning system is used for realizing the air conditioning requirements of the truck during driving and parking. Specifically, through the switching operation of the air conditioning system under different modes, the efficient operation of the air conditioning system under different air conditioning load demands is realized, the energy-saving effect is achieved, and the problem that a single compressor system cannot operate efficiently under the large-span cold demand is solved. That is, the scheme of the invention adopts the control technology of the double-drive variable-capacity variable-frequency air conditioning system, and realizes the efficient operation of the compressor under different operation loads through the single-double-cylinder operation switching logic of the compressor. The problem that a single compressor system cannot operate efficiently in the long-span cold energy requirement is solved, and the operation efficiency of the air conditioning system can be improved, so that energy conservation and high efficiency are achieved.

In the scheme of the invention, the variable capacity operation of the compressors in multiple modes is realized by the driving control of the belt pulley driving and the electric driving of the compressors and the switching of the cylinder bodies of the compressors, and the problem that one compressor is easy to be damaged too early due to oil shortage because two compressors share one air conditioning system and the oil return capability is different is solved. That is, the scheme of the invention establishes the switching logic of the driving of the belt pulley and the electric driving of the compressor, so that the belt pulley and the integrated compressor of the electric driving can realize stable switching, a double-compressor system which needs the parallel connection of the belt pulley compressor and the electric driving compressor in the related scheme is solved, and the oil return problem in the double-compressor system is further solved.

By adopting the technical scheme of the embodiment, the compressor is driven by the double-drive compressor in the air conditioning system, the vehicle state is judged through the vehicle speed, the air conditioning operation mode is obtained by combining the pressure and the temperature equivalent of the air conditioning system and combining the comprehensive judgment result, the stable operation switching of the resident integrated air conditioning system in various environments such as truck driving, parking and low-temperature parking is realized, and the efficient operation of the air conditioning system under different air conditioning load requirements is realized. Therefore, the compressor of the air conditioning system adopts the double-drive compressor, the running state of the air conditioning system is controlled through judging the running state of the vehicle, and the air conditioning running effect of the vehicle in different environments is met through switching of different running states of the air conditioning system, so that the energy-saving effect is achieved, and the problem that the single compressor system cannot run efficiently when the large-span cold energy is required is solved.

According to an embodiment of the present invention, there is also provided a control apparatus of an air conditioning system corresponding to the control method of the air conditioning system. Referring to fig. 7, a schematic view of an embodiment of the apparatus of the present invention is shown. The air conditioning system, in particular to a double-drive variable-capacity variable-frequency air conditioning system, is used as a traveling and residence integrated air conditioner for automobiles. The air conditioning system includes: a dual drive compressor. The control device of the air conditioning system comprises: an acquisition unit 102 and a control unit 104.

Wherein, the acquisition unit 102 is configured to acquire the speed of the automobile, and acquire the system pressure and the system temperature of the dual-drive compressor of the air conditioning system. The specific function and process of the acquisition unit 102 refer to step S110.

The control unit 104 is configured to determine a driving state of the automobile according to the speed of the automobile and the duration thereof. The specific function and process of the control unit 104 refer to step S120.

In the example shown in fig. 8, the compressor 100 is a dual-drive compressor compatible with belt pulley and motor drive, and the air conditioning system operates efficiently when different driving modes of the compressor 100 can realize different air conditioning load demands during driving and parking. The compressor 100 includes a solenoid valve 101, a solenoid valve 102, a vapor-liquid separator 103, a pulley clutch 104, a motor electromagnetic clutch 105, a first cylinder 106, a second cylinder 107, an exhaust pipe 108, and an intake pipe 109.

The control unit 104 determines a driving state of the automobile according to a speed of the automobile and a duration thereof, and includes:

the control unit 104 is specifically further configured to determine whether the vehicle speed of the vehicle is equal to 0, and determine whether the duration of time for which the vehicle speed of the vehicle is equal to 0 is greater than or equal to a first set time. The first set time is 10min. The specific function and process of the control unit 104 also refer to step S210.

The control unit 104 is specifically further configured to determine that the driving state of the automobile is a parking state if the speed of the automobile is equal to 0 and the duration of time when the speed of the automobile is equal to 0 is greater than or equal to a first set time. The specific function and process of the control unit 104 is also referred to as step S220.

The control unit 104 is specifically further configured to determine that the driving state of the vehicle is a driving state if the vehicle speed of the vehicle is not equal to 0 or if the duration of time during which the vehicle speed of the vehicle is equal to 0 is less than a first set time. The specific function and process of the control unit 104 is also referred to as step S230.

Fig. 9 is a schematic diagram of a cooling control logic of an embodiment of a control device of a vehicle-mounted integrated air conditioner according to the present invention, and fig. 10 is a schematic diagram of a heating control logic of an embodiment of a control device of a vehicle-mounted integrated air conditioner according to the present invention. As shown in fig. 9 and 10, the control device for a truck traveling and residence integrated air conditioner provided by the scheme of the invention comprises: after receiving the start command, the air conditioner controller enters a step S1 to judge the requirement of an air conditioner operation mode, if the operation requirement is a refrigeration mode, the air conditioner controller enters a step S2, and if the operation requirement is not the refrigeration mode, the operation requirement is a heating mode, the air conditioner controller enters a step S12.

And S2, judging the running state of the vehicle by reading the value of a vehicle speed sensor, and judging the duration time of the vehicle speed, so that the condition that the air conditioning system enters a parking state when the vehicle passes through a congestion road section with equal traffic lights can be eliminated, and the running mode of the air conditioning system is frequently switched, so that the reliable running of the air conditioning system is affected. The control device can frequently switch the running mode of the air conditioning system, and the reliable running of the air conditioning system is affected by judging the vehicle speed state to obtain the running and parking state of the vehicle, so as to judge the requirement of the vehicle on the air conditioner. Judging whether the value of the vehicle speed sensor is equal to 0 and the duration of the value is more than or equal to 10 minutes: if yes, go to step S7, if not, go to step S3.

The control device of the truck traveling and parking integrated air conditioner mainly controls the operation state of an air conditioning system through judging the traveling state of a vehicle, and meets the requirements of the truck on the operation effect of the air conditioner under different environments through switching different operation states of the air conditioning system.

The control unit 104 is further configured to control the dual-drive compressor to switch operation in a pulley driving mode and an electric driving mode according to a system pressure and a system temperature of the dual-drive compressor of the air conditioning system based on a running state of the automobile and an operation mode of the air conditioning system. The specific function and processing of the control unit 104 is also referred to in step S130.

The invention provides a control device of a traveling and parking integrated air conditioner for a truck, in particular to a control device of a dual-drive variable-capacity variable-frequency air conditioner system for the truck, which is related to the traveling state of the whole truck. Specifically, the vehicle state is judged through the vehicle speed, the pressure, the temperature and the like of the air conditioning system are combined, the air conditioning operation mode is obtained through the comprehensive judgment result, the stable operation switching of the resident integrated air conditioning system in various environments such as truck driving, parking and low-temperature parking is realized, double heat sources are realized during heating in winter, the waste heat of an engine is utilized during driving, and the heat pump air conditioner is utilized during parking for heating.

The control unit 104 controls the dual driving compressor to switch operation in a pulley driving mode and an electric driving mode according to a system pressure and a system temperature of the dual driving compressor of the air conditioning system based on a driving state of the automobile and an operation mode of the air conditioning system, and includes: the driving state and the refrigerating mode control the process of switching operation of the double-drive compressor in a belt pulley driving mode and an electric driving mode, and the method specifically comprises the following steps:

the control unit 104 is specifically further configured to determine whether the high-side pressure of the dual-drive compressor is greater than or equal to a set pressure when the running state of the automobile is a running state and the air conditioning system is operating in a cooling mode. The specific function and process of the control unit 104 also refer to step S310.

The control unit 104 is specifically further configured to control the condensing fan 601, which is matched with the condenser 600, to start if the high-pressure side pressure of the dual-drive compressor is greater than or equal to the set pressure, control the first electromagnetic valve to close, control the second electromagnetic valve to open, control the first bypass valve 401 to open, control the second bypass valve 501 to close, and control the motor electromagnetic clutch in the dual-drive compressor to open and the pulley clutch to engage, and then continuously determine the driving state of the automobile according to the speed of the automobile and the duration thereof. The specific function and process of the control unit 104 also refer to step S320.

The control unit 104 is specifically further configured to control the condensing fan 601, which is matched with the condenser 600, to be turned off if the high-pressure side pressure of the dual-drive compressor is smaller than the set pressure, control the first electromagnetic valve to be turned off, control the second electromagnetic valve to be turned on, control the first bypass valve 401 to be turned on, control the second bypass valve 501 to be turned off, and control the motor electromagnetic clutch and the pulley clutch in the dual-drive compressor to be engaged, and then continuously determine the driving state of the automobile according to the speed and the duration of the automobile. The specific function and process of the control unit 104 also refer to step S330.

As shown in fig. 9 and 10, the control device for a truck traveling and residence integrated air conditioner provided by the solution of the present invention further includes:

If simply judging the on/off state of the condensing fan 601, the condensing fan 601 may be turned on in time or in advance at a low vehicle speed, resulting in energy waste, and the reliability of the air conditioning system may be affected in serious cases, the more intuitive and reliable way is to control the on/off state of the condensing fan 601 through the pressure value of the high-pressure side of the air conditioning system, when the pressure value of the high-pressure side of the air conditioning system is higher than the set pressure aMPa, it is determined that the condensing effect of the condensing side of the air conditioner is insufficient, the condensing fan 601 needs to be turned on, step S5 is executed, and if the pressure of the high-pressure side is not greater than the set pressure aMPa, step S4 is executed, and the control device can avoid the untimely on of the condensing fan 601 or the energy waste caused by the early on.

The control unit 104 controls the dual driving compressor to switch operation in a pulley driving mode and an electric driving mode according to a system pressure and a system temperature of the dual driving compressor of the air conditioning system based on a driving state of the automobile and an operation mode of the air conditioning system, and further includes: the process of controlling the double-drive compressor to switch operation in a belt pulley driving mode and an electric driving mode in a standing state and a refrigeration mode is specifically as follows:

the control unit 104 is specifically further configured to control the condensation fan 601, which is disposed in a matching manner with the condenser 600, to be started when the driving state of the automobile is a parking state and the air conditioning system is operated in a cooling mode. The specific function and process of the control unit 104 also refer to step S410.

The control unit 104 is specifically further configured to determine whether a temperature difference between an indoor ambient temperature of the vehicle and a target temperature of the air conditioning system is greater than or equal to a set temperature difference (e.g., set temperature difference b). The specific function and process of the control unit 104 also refer to step S420.

The control unit 104 is specifically further configured to control the first electromagnetic valve to close, control the second electromagnetic valve to open, control the first bypass valve 401 to open, control the second bypass valve 501 to close, and control the motor electromagnetic clutch in the dual-drive compressor to engage and the pulley clutch to disengage if the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is greater than or equal to a set temperature difference, and then continuously determine whether the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is greater than or equal to the set temperature difference. The specific function and process of the control unit 104 also refer to step S430.

The control unit 104 is specifically further configured to control the first electromagnetic valve to be opened, control the second electromagnetic valve to be closed, control the first bypass valve 401 to be opened, control the second bypass valve 501 to be closed, and control the motor electromagnetic clutch in the dual-drive compressor to be engaged and the pulley clutch to be disengaged if the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is smaller than the set temperature difference, and then continuously determine whether the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is greater than or equal to the set temperature difference. The specific function and processing of the control unit 104 is also referred to in step S440.

The control unit 104 controls the dual driving compressor to switch operation in a pulley driving mode and an electric driving mode according to a system pressure and a system temperature of the dual driving compressor of the air conditioning system based on a driving state of the automobile and an operation mode of the air conditioning system, and further includes: the process of switching operation of the double-drive compressor in a belt pulley driving mode and an electric driving mode is controlled in a standing state and a heating mode, and the method specifically comprises the following steps:

the control unit 104 is specifically further configured to determine whether the outdoor ambient temperature of the automobile is greater than or equal to a set ambient temperature when the running state of the automobile is a parking state and the air conditioning system is operating in a heating mode. The specific function and process of the control unit 104 also refer to step S510.

The control unit 104 is specifically further configured to control the first electromagnetic valve to be opened, control the second electromagnetic valve to be closed, control the first bypass valve 401 to be closed, control the second bypass valve 501 to be opened, and control the motor electromagnetic clutch in the dual-drive compressor to be engaged and the pulley clutch to be disengaged if the outdoor ambient temperature of the automobile is greater than or equal to the set ambient temperature, and then continuously determine the driving state of the automobile according to the speed of the automobile and the duration thereof. The specific function and process of the control unit 104 also refer to step S520.

The control unit 104 is specifically further configured to control the first electromagnetic valve to close, control the second electromagnetic valve to open, control the first bypass valve 401 to close, control the second bypass valve 501 to open, and control the motor electromagnetic clutch in the dual-drive compressor to engage and the pulley clutch to disengage if the outdoor ambient temperature of the automobile is less than the set ambient temperature, and then continuously determine the driving state of the automobile according to the speed of the automobile and the duration thereof. The specific function and processing of the control unit 104 is also referred to in step S530.

and step S12, judging that the air conditioning system enters a heating mode.

The control unit 104 controls the dual driving compressor to switch operation in a pulley driving mode and an electric driving mode according to a system pressure and a system temperature of the dual driving compressor of the air conditioning system based on a driving state of the automobile and an operation mode of the air conditioning system, and further includes: the driving state and the heating mode control the process of switching operation of the double-drive compressor in a belt pulley driving mode and an electric driving mode, and the method specifically comprises the following steps:

the control unit 104 is specifically further configured to determine whether the engine cooling temperature of the automobile is greater than or equal to a set cooling temperature when the running state of the automobile is a running state and the air conditioning system is operating in a heating mode. The specific function and process of the control unit 104 also refer to step S610.

The control unit 104 is specifically further configured to control the electronic water pump 801 to be turned on and the air mixing damper 702 to be turned on if the engine cooling temperature of the automobile is greater than or equal to the set cooling temperature, and then to continuously determine the driving state of the automobile according to the speed of the automobile and the duration thereof.

The control unit 104 is specifically further configured to execute a control process of controlling the dual-drive compressor to switch operation in the pulley driving mode and the electric driving mode in the standing state and the heating mode if the engine cooling temperature of the automobile is less than the set cooling temperature. The specific function and processing of the control unit 104 is also referred to in step S620.

Since the processes and functions implemented by the apparatus of the present embodiment substantially correspond to the embodiments, principles and examples of the foregoing methods, the descriptions of the embodiments are not exhaustive, and reference may be made to the descriptions of the foregoing embodiments and their descriptions are omitted herein.

By adopting the technical scheme of the invention, the compressor adopts the double-drive compressor in the air conditioning system, the vehicle state is judged through the vehicle speed, the air conditioning operation mode is obtained by combining the pressure and the temperature equivalent of the air conditioning system and combining the comprehensive judgment result, the stable operation switching of the resident integrated air conditioning system in various environments such as truck driving, parking and low-temperature parking is realized, the efficient operation of the air conditioning system under different air conditioning load requirements is realized, the operation efficiency of the air conditioning system can be improved, and thus the energy conservation and the high efficiency are achieved.

According to an embodiment of the present invention, there is also provided an air conditioning system corresponding to a control device of the air conditioning system. The air conditioning system may include: the control device of the air conditioning system is described above.

Since the processing and functions implemented by the air conditioning system of the present embodiment basically correspond to the embodiments, principles and examples of the foregoing apparatus, the description of the present embodiment is not exhaustive, and reference may be made to the related descriptions of the foregoing embodiments, which are not repeated herein.

By adopting the technical scheme of the invention, the compressor adopts the double-drive compressor in the air conditioning system, the vehicle state is judged according to the vehicle speed, the air conditioning operation mode is obtained by combining the pressure, the temperature and the like of the air conditioning system and combining the comprehensive judgment result, the stable operation switching of the resident integrated air conditioning system in various environments such as truck driving, parking, low-temperature parking and the like is realized, the efficient operation of the air conditioning system under different air conditioning load requirements is realized, and the efficient operation of the compressor under different operation loads is realized through the single-double-cylinder operation switching logic of the compressor.

According to an embodiment of the present invention, there is also provided a storage medium corresponding to a control method of an air conditioning system, the storage medium including a stored program, wherein an apparatus in which the storage medium is controlled to execute the control method of the air conditioning system described above when the program runs.

Since the processes and functions implemented by the storage medium of the present embodiment substantially correspond to the embodiments, principles and examples of the foregoing methods, the descriptions of the present embodiment are not exhaustive, and reference may be made to the related descriptions of the foregoing embodiments, which are not repeated herein.

By adopting the technical scheme of the invention, the compressor adopts the double-drive compressor in the air conditioning system, the vehicle state is judged according to the vehicle speed, the air conditioning operation mode is obtained by combining the pressure and the temperature equivalent of the air conditioning system and combining the comprehensive judgment result, the stable operation switching of the resident integrated air conditioning system under various environments such as truck driving, parking and low-temperature parking is realized, the efficient operation of the air conditioning system under different air conditioning load requirements is realized, and the variable capacity operation of the compressor under various modes is realized by the switching of the belt pulley drive and the electric drive of the compressor and the cylinder body of the compressor.

In summary, it is readily understood by those skilled in the art that the above-described advantageous ways can be freely combined and superimposed without conflict.

The above description is only an example of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The control method of the air conditioning system is characterized in that the air conditioning system, in particular to a double-drive variable-capacity variable-frequency air conditioning system, is used as a traveling and residence integrated air conditioner for an automobile; the air conditioning system includes: a dual-drive compressor; the air conditioning system further comprises: the four-way valve (200), the liquid storage tank (300), the condenser (600) and the evaporator (700); the four-way valve (200) is respectively communicated with the dual-drive compressor, the condenser (600) and the evaporator (700); -the reservoir (300) being arranged between the condenser (600) and the evaporator (700); a first throttle valve (400) and a first bypass valve (401) are arranged in parallel between the condenser (600) and the liquid storage tank (300); a second bypass valve (500) and a second bypass valve (501) are arranged in parallel between the liquid storage tank (300) and the evaporator (700); the dual driving compressor includes: a first solenoid valve and a second solenoid valve; the control method of the air conditioning system comprises the following steps:

acquiring the speed of the automobile, and acquiring the system pressure and the system temperature of a double-drive compressor of the air conditioning system;

determining a driving state of the automobile according to the speed and duration of the automobile;

Based on the running state of the automobile and the running mode of the air conditioning system, controlling the double-drive compressor to switch running in a belt pulley driving mode and an electric driving mode according to the system pressure and the system temperature of the double-drive compressor of the air conditioning system;

wherein, the operation mode of the air conditioning system is a refrigeration mode; the system pressure of the dual driving compressor of the air conditioning system comprises: the high side pressure of the dual drive compressor;

based on the running state of the automobile and the running mode of the air conditioning system, controlling the dual-drive compressor to switch running in a belt pulley driving mode and an electric driving mode according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system, comprising:

determining whether a high-side pressure of the dual-drive compressor is greater than or equal to a set pressure when a driving state of the automobile is a driving state and the air conditioning system is operated in a cooling mode;

if the high-pressure side pressure of the dual-drive compressor is greater than or equal to the set pressure, a condensing fan (601) matched with the condenser (600) is controlled to be started, the first electromagnetic valve is controlled to be closed, the second electromagnetic valve is controlled to be opened, the first bypass valve (401) is controlled to be opened, the second bypass valve (501) is controlled to be closed, a motor electromagnetic clutch in the dual-drive compressor is controlled to be disconnected, a belt pulley clutch is controlled to be closed, and then the driving state of the automobile is continuously determined according to the speed and the duration time of the automobile;

If the high-pressure side pressure of the dual-drive compressor is smaller than the set pressure, a condensing fan (601) matched with the condenser (600) is controlled to be closed, the first electromagnetic valve is controlled to be closed, the second electromagnetic valve is controlled to be opened, the first bypass valve (401) is controlled to be opened, the second bypass valve (501) is controlled to be closed, a motor electromagnetic clutch in the dual-drive compressor is controlled to be disconnected, a belt pulley clutch is controlled to be closed, and then the running state of the automobile is determined according to the speed and the duration time of the automobile.

2. The control method of an air conditioning system according to claim 1, wherein determining a running state of the automobile according to a speed of the automobile and a duration thereof includes:

determining whether the speed of the automobile is equal to 0 and determining whether the duration of time that the speed of the automobile is equal to 0 is greater than or equal to a first set time;

if the speed of the automobile is equal to 0 and the duration time of the speed of the automobile equal to 0 is determined to be greater than or equal to a first set time, determining that the running state of the automobile is a parking state;

and if the speed of the automobile is not equal to 0 or the duration of time when the speed of the automobile is equal to 0 is smaller than a first set time, determining that the running state of the automobile is a running state.

3. The control method of an air conditioning system according to claim 2, wherein the operation mode of the air conditioning system is a cooling mode; the system temperature of the dual driving compressor of the air conditioning system comprises: a temperature difference between an indoor ambient temperature of the automobile and a target temperature of the air conditioning system;

based on the running state of the automobile and the running mode of the air conditioning system, controlling the double-drive compressor to switch running in a belt pulley driving mode and an electric driving mode according to the system pressure and the system temperature of the double-drive compressor of the air conditioning system, and further comprising:

when the running state of the automobile is a parking state and the air conditioning system is operated in a refrigerating mode, a condensing fan (601) matched with the condenser (600) is controlled to be started;

determining whether a temperature difference between an indoor ambient temperature of the automobile and a target temperature of the air conditioning system is greater than or equal to a set temperature difference;

if the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is greater than or equal to a set temperature difference, controlling the first electromagnetic valve to be closed, controlling the second electromagnetic valve to be opened, controlling the first bypass valve (401) to be opened, controlling the second bypass valve (501) to be closed, controlling the motor electromagnetic clutch in the dual-drive compressor to be engaged and the belt pulley clutch to be disengaged, and then continuously determining whether the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is greater than or equal to the set temperature difference;

If the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is smaller than the set temperature difference, the first electromagnetic valve is controlled to be opened, the second electromagnetic valve is controlled to be closed, the first bypass valve (401) is controlled to be opened, the second bypass valve (501) is controlled to be closed, the motor electromagnetic clutch in the dual-drive compressor is controlled to be closed, the belt pulley clutch is controlled to be opened, and then whether the temperature difference between the indoor environment temperature of the automobile and the target temperature of the air conditioning system is larger than or equal to the set temperature difference is continuously determined.

4. The control method of an air conditioning system according to claim 2, wherein the operation mode of the air conditioning system is a heating mode; the system temperature of the dual driving compressor of the air conditioning system comprises: the outdoor ambient temperature of the automobile;

determining whether the outdoor ambient temperature of the automobile is greater than or equal to a set ambient temperature when the driving state of the automobile is a parking state and the air conditioning system is operated in a heating mode;

If the outdoor environment temperature of the automobile is greater than or equal to the set environment temperature, the first electromagnetic valve is controlled to be opened, the second electromagnetic valve is controlled to be closed, the first bypass valve (401) is controlled to be closed, the second bypass valve (501) is controlled to be opened, the motor electromagnetic clutch in the dual-drive compressor is controlled to be closed, the belt pulley clutch is controlled to be opened, and then the running state of the automobile is continuously determined according to the speed of the automobile and the duration time of the automobile;

and if the outdoor environment temperature of the automobile is smaller than the set environment temperature, controlling the first electromagnetic valve to be closed, controlling the second electromagnetic valve to be opened, controlling the first bypass valve (401) to be closed, controlling the second bypass valve (501) to be opened, controlling the motor electromagnetic clutch in the dual-drive compressor to be closed and the belt pulley clutch to be disconnected, and then continuously determining the running state of the automobile according to the speed of the automobile and the duration time of the speed of the automobile.

5. The control method of an air conditioning system according to claim 2, characterized in that the air conditioning system further comprises: an electronic water pump (801) and a wind mixing air door (702);

the operation mode of the air conditioning system is a heating mode; the system temperature of the dual driving compressor of the air conditioning system comprises: an engine cooling temperature of the automobile, and an outdoor ambient temperature of the automobile;

determining whether the engine cooling temperature of the automobile is greater than or equal to a set cooling temperature under the condition that the running state of the automobile is a running state and the air conditioning system is operated in a heating mode;

if the engine cooling temperature of the automobile is greater than or equal to the set cooling temperature, controlling the electronic water pump (801) to be started, controlling the air mixing damper (702) to be started, and then continuously determining the running state of the automobile according to the speed of the automobile and the duration time of the automobile;

and if the engine cooling temperature of the automobile is smaller than the set cooling temperature, executing a control process of controlling the double-drive compressor to switch operation in a belt pulley driving mode and an electric driving mode in a standing state and a heating mode.

6. The control device of the air conditioning system is characterized in that the air conditioning system, in particular to a double-drive variable-capacity variable-frequency air conditioning system, is used as a traveling and residence integrated air conditioner for an automobile; the air conditioning system includes: a dual-drive compressor; the air conditioning system further comprises: the four-way valve (200), the liquid storage tank (300), the condenser (600) and the evaporator (700); the four-way valve (200) is respectively communicated with the dual-drive compressor, the condenser (600) and the evaporator (700); -the reservoir (300) being arranged between the condenser (600) and the evaporator (700); a first throttle valve (400) and a first bypass valve (401) are arranged in parallel between the condenser (600) and the liquid storage tank (300); a second bypass valve (500) and a second bypass valve (501) are arranged in parallel between the liquid storage tank (300) and the evaporator (700); the dual driving compressor includes: a first solenoid valve and a second solenoid valve; the control device of the air conditioning system comprises:

An acquisition unit configured to acquire a vehicle speed of the vehicle, a system pressure and a system temperature of a dual-drive compressor of the air conditioning system;

a control unit configured to determine a running state of the automobile according to a speed of the automobile and a duration thereof;

the control unit is further configured to control the dual-drive compressor to switch operation in a belt pulley driving mode and an electric driving mode according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system based on the running state of the automobile and the running mode of the air conditioning system;

the control unit controls the dual-drive compressor to switch operation in a belt pulley driving mode and an electric driving mode according to a system pressure and a system temperature of the dual-drive compressor of the air conditioning system based on a driving state of the automobile and an operation mode of the air conditioning system, and includes:

7. The control device of an air conditioning system according to claim 6, wherein the control unit determines a running state of the automobile according to a speed of the automobile and a duration thereof, comprising:

8. The control device of an air conditioning system according to claim 7, wherein the operation mode of the air conditioning system is a cooling mode; the system temperature of the dual driving compressor of the air conditioning system comprises: a temperature difference between an indoor ambient temperature of the automobile and a target temperature of the air conditioning system;

the control unit controls the dual-drive compressor to switch operation in a belt pulley driving mode and an electric driving mode according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system based on the running state of the automobile and the operation mode of the air conditioning system, and further comprises:

9. The control device of an air conditioning system according to claim 7, wherein the operation mode of the air conditioning system is a heating mode; the system temperature of the dual driving compressor of the air conditioning system comprises: the outdoor ambient temperature of the automobile;

10. The control device of an air conditioning system according to claim 7, characterized in that the air conditioning system further comprises: an electronic water pump (801) and a wind mixing air door (702);

11. An air conditioning system, comprising: the control device of an air conditioning system according to any one of claims 6 to 10.

12. A storage medium comprising a stored program, wherein the program, when run, controls a device in which the storage medium is located to perform the control method of the air conditioning system according to any one of claims 1 to 5.