CN114179589A

CN114179589A - Control method and device of air conditioning system, air conditioning system and storage medium

Info

Publication number: CN114179589A
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: 2022-03-15
Anticipated expiration: 2041-12-08
Also published as: CN114179589B

Abstract

The invention discloses a control method and a control 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 dual-drive compressor of an air conditioning system; determining the running state of the automobile according to the speed and the duration time 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 to run under the belt pulley driving mode and the 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 compressors of the air conditioning system adopt the dual-drive compressors, the running state of the air conditioning system is controlled by judging the running state of the vehicle, and the running effect of the vehicle on the air conditioner in 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 parking 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 higher and higher requirements on comfort in the vehicle during parking.

In some solutions, various forms of parking air conditioners are proposed, wherein an electric compressor is directly connected in parallel to an original vehicle system to meet the air conditioning requirement during parking, and the quality of temporary refitting is not controlled. When the truck air conditioner runs, the air conditioner load is about 5kW, when the truck air conditioner is parked and has a rest at night, the air conditioner load is about 2kW, the air conditioner load is large, the compressor needs to run in a higher frequency section when the truck runs, the vibration noise can be increased, meanwhile, the air conditioner energy efficiency is low, and the compressor runs in a lower frequency section when the truck is parked, and the energy efficiency is also low. Therefore, a single compressor system cannot run efficiently when the large-span cold quantity is required, so that the air conditioning system cannot run in an efficient frequency band, and energy waste is caused.

The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.

Disclosure of Invention

The invention aims to provide a control method and a control device of an air conditioning system, the air conditioning system and a storage medium, which are used for solving the problem that when the air conditioning system adopts a single compressor system, the single compressor system cannot be operated efficiently when the large-span cold energy is required, so that the air conditioning system cannot be operated in an efficient frequency band, and energy is wasted, and the effects that the compressor of the air conditioning system adopts a dual-drive compressor, the running state of the air conditioning system is controlled by judging the running state of a vehicle, and the running effect of the vehicle on the air conditioning under different environments is met by switching different running states of the air conditioning system.

The invention provides a control method of an air conditioning system, wherein the air conditioning system, in particular to a dual-drive variable-capacitance variable-frequency air conditioning system is used as an automobile traveling and parking integrated air conditioner; 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 dual-drive compressor of the air conditioning system; determining the running state of the automobile according to the speed and the duration time of the automobile; and controlling the dual-drive compressor to switch to operate under 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: a four-way valve, a liquid storage tank, a condenser and an evaporator; the four-way valve is respectively communicated with the dual-drive compressor, the condenser and the evaporator; the liquid storage tank is arranged between the condenser and the evaporator; a first throttling valve and a first bypass valve are arranged between the condenser and the liquid storage tank in parallel; a second bypass valve and a second bypass valve are arranged between the liquid storage tank and the evaporator in parallel; the dual drive compressor includes: a first solenoid valve and a second solenoid valve; determining the driving state of the automobile according to the speed and the duration of the automobile, wherein the method comprises the following steps: determining whether the vehicle speed of the vehicle is equal to 0 and determining whether the duration of the vehicle speed of the vehicle 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 that the speed of the automobile is 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 vehicle speed of the vehicle is not equal to 0 or the vehicle speed of the vehicle is equal to 0 but the duration of the vehicle speed of the vehicle is equal to 0 is less than a first set time, determining that the driving state of the vehicle is a driving state.

In some embodiments, the operation mode of the air conditioning system is a cooling mode; the system pressure of the dual-drive compressor of the air conditioning system comprises: the high-pressure side pressure of the dual-drive compressor; based on the running state of the automobile and the running mode of the air conditioning system, the double-drive compressor is controlled to switch and run under the belt pulley driving mode and the electric driving mode according to the system pressure and the system temperature of the double-drive compressor of the air conditioning system, and the method comprises the following steps: determining whether the high-pressure side pressure of the dual-drive compressor is greater than or equal to a set pressure or not under the condition that the running state of the automobile is a running state and the air conditioning system runs in a refrigeration mode; if the high-pressure side pressure of the dual-drive compressor is greater than or equal to a set pressure, a condensing fan matched with the condenser is controlled to start, 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, electromagnetic clutches in the dual-drive compressor are controlled to be disconnected, a belt pulley clutch is controlled to be closed, and then the driving state of the automobile is determined continuously 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 matched with the condenser 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 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 disconnected, the belt pulley clutch is controlled to be closed, and then the running state of the automobile is determined continuously according to the speed and the duration time of the automobile.

In some embodiments, the operation mode of the air conditioning system is a cooling mode; the system temperature of the dual-drive 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 driving state of the automobile and the operation mode of the air conditioning system, controlling the dual-drive compressor to switch and operate under 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, and the method further comprises the following steps: controlling a condensing fan matched with the condenser to start under the condition that the running state of the automobile is a parking state and the air conditioning system operates in a refrigerating mode; 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 larger than or equal to the 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 electromagnetic clutch in the dual-drive compressor to be closed and the pulley clutch to be disconnected, 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 larger 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 disconnected, 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 or not is continuously determined.

In some embodiments, the operation mode of the air conditioning system is a heating mode; the system temperature of the dual-drive compressor of the air conditioning system comprises: an outdoor ambient temperature of the automobile; based on the driving state of the automobile and the operation mode of the air conditioning system, controlling the dual-drive compressor to switch and operate under 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, and the method further comprises the following steps: determining whether the outdoor ambient temperature of the automobile is greater than or equal to a set ambient temperature under the condition that the driving state of the automobile is a parking state and the air conditioning system operates 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 electromagnetic clutches in the dual-drive compressor to be closed and belt pulley clutches to be disconnected, and then continuously determining the running state of the automobile according to the speed and the duration time of the automobile; if the outdoor environment temperature of the automobile is lower 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, electromagnetic clutches in the dual-drive compressor are controlled to be closed, a belt pulley clutch is controlled to be disconnected, and then the driving state of the automobile is determined continuously according to the speed and the duration time 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-drive 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 driving state of the automobile and the operation mode of the air conditioning system, controlling the dual-drive compressor to switch and operate under 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, and the method further comprises the following steps: determining whether the engine cooling temperature of the automobile is greater than or equal to a set cooling temperature or not under the condition that the driving state of the automobile is a driving state and the air conditioning system operates 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 opened, controlling the air mixing air door to be opened, and then continuously determining the running state of the automobile according to the speed and the duration time of the automobile; and if the engine cooling temperature of the automobile is lower than the set cooling temperature, executing a control process of controlling the dual-drive compressor to switch operation under the belt pulley driving mode and the electric driving mode in a parking state and a heating mode.

In another aspect, the invention provides a control device for an air conditioning system, wherein the air conditioning system, in particular a dual-drive variable-capacitance variable-frequency air conditioning system, is used as an automotive traveling and parking integrated air conditioner; the air conditioning system includes: a dual drive compressor; the control device of the air conditioning system comprises: the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is configured to acquire the speed of the automobile and acquire the system pressure and the system temperature of a dual-drive compressor of the air conditioning system; a control unit configured to determine a driving 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 compressors to switch between operation in a belt pulley driving mode and operation in an electric driving mode according to system pressure and system temperature of the dual-drive compressors 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: a four-way valve, a liquid storage tank, a condenser and an evaporator; the four-way valve is respectively communicated with the dual-drive compressor, the condenser and the evaporator; the liquid storage tank is arranged between the condenser and the evaporator; a first throttling valve and a first bypass valve are arranged between the condenser and the liquid storage tank in parallel; a second bypass valve and a second bypass valve are arranged between the liquid storage tank and the evaporator in parallel; the dual drive compressor includes: a first solenoid valve and a second solenoid valve; the control unit determines the driving state of the automobile according to the speed and the duration of the automobile, and comprises the following steps: determining whether the vehicle speed of the vehicle is equal to 0 and determining whether the duration of the vehicle speed of the vehicle 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 that the speed of the automobile is 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 vehicle speed of the vehicle is not equal to 0 or the vehicle speed of the vehicle is equal to 0 but the duration of the vehicle speed of the vehicle is equal to 0 is less than a first set time, determining that the driving state of the vehicle is a driving state.

In some embodiments, the operation mode of the air conditioning system is a cooling mode; the system pressure of the dual-drive compressor of the air conditioning system comprises: the high-pressure side pressure of the dual-drive compressor; the control unit is based on the running state of the automobile and the running mode of the air conditioning system, and controls the dual-drive compressor to switch and run under 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, and the control unit comprises: determining whether the high-pressure side pressure of the dual-drive compressor is greater than or equal to a set pressure or not under the condition that the running state of the automobile is a running state and the air conditioning system runs in a refrigeration mode; if the high-pressure side pressure of the dual-drive compressor is greater than or equal to a set pressure, a condensing fan matched with the condenser is controlled to start, 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, electromagnetic clutches in the dual-drive compressor are controlled to be disconnected, a belt pulley clutch is controlled to be closed, and then the driving state of the automobile is determined continuously 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 matched with the condenser 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 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 disconnected, the belt pulley clutch is controlled to be closed, and then the running state of the automobile is determined continuously according to the speed and the duration time of the automobile.

In some embodiments, the operation mode of the air conditioning system is a cooling mode; the system temperature of the dual-drive 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 is based on the running state of the automobile and the running mode of the air conditioning system, and controls the dual-drive compressor to switch and run under the belt pulley driving mode and the electric driving mode according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system, and the control unit further comprises: controlling a condensing fan matched with the condenser to start under the condition that the running state of the automobile is a parking state and the air conditioning system operates in a refrigerating mode; 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 larger than or equal to the 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 electromagnetic clutch in the dual-drive compressor to be closed and the pulley clutch to be disconnected, 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 larger 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 disconnected, 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 or not is continuously determined.

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

the control unit is based on the running state of the automobile and the running mode of the air conditioning system, and controls the dual-drive compressor to switch and run under the belt pulley driving mode and the electric driving mode according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system, and the control unit further comprises: determining whether the outdoor ambient temperature of the automobile is greater than or equal to a set ambient temperature under the condition that the driving state of the automobile is a parking state and the air conditioning system operates 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 electromagnetic clutches in the dual-drive compressor to be closed and belt pulley clutches to be disconnected, and then continuously determining the running state of the automobile according to the speed and the duration time of the automobile; if the outdoor environment temperature of the automobile is lower 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, electromagnetic clutches in the dual-drive compressor are controlled to be closed, a belt pulley clutch is controlled to be disconnected, and then the driving state of the automobile is determined continuously according to the speed and the duration time 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-drive 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 is based on the running state of the automobile and the running mode of the air conditioning system, and controls the dual-drive compressor to switch and run under the belt pulley driving mode and the electric driving mode according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system, and the control unit further comprises: determining whether the engine cooling temperature of the automobile is greater than or equal to a set cooling temperature or not under the condition that the driving state of the automobile is a driving state and the air conditioning system operates 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 opened, controlling the air mixing air door to be opened, and then continuously determining the running state of the automobile according to the speed and the duration time of the automobile; and if the engine cooling temperature of the automobile is lower than the set cooling temperature, executing a control process of controlling the dual-drive compressor to switch operation under the belt pulley driving mode and the electric driving mode in a parking state and a heating mode.

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

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

Therefore, according to the scheme of the invention, the compressor adopts a dual-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 temperature equivalence of the air conditioning system and the comprehensive judgment result, the stable operation switching of the existing parking integrated air conditioning system under various environments such as truck driving, parking, low-temperature parking and the like 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 dual-drive compressor, the running state of the air conditioning system is controlled by judging the running state of the vehicle, the running effect of the vehicle on the air conditioner in different environments is met by switching the different running states of the air conditioning system, the energy-saving effect is achieved, and the problem that a single compressor system cannot run efficiently when the large-span cold quantity 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 solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

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

FIG. 2 is a schematic flow chart illustrating an embodiment of determining a driving state of a vehicle 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 the pulley-driven mode and the electric-driven mode in the driving state and the cooling mode;

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

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

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

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

FIG. 8 is a schematic structural diagram of an embodiment of the integrated parking and driving air conditioner for a truck according to the present invention;

FIG. 9 is a schematic diagram of the cooling control logic of an embodiment of the control method of the parking and driving integrated air conditioner for a truck according to the present invention;

FIG. 10 is a logic diagram illustrating heating control according to an embodiment of the method for controlling a parking and driving integrated air conditioner for a truck;

fig. 11 is a schematic structural diagram of a compressor in a parking and driving integrated air conditioner for a truck according to an embodiment of the present invention.

The reference numbers in the embodiments of the present invention are as follows, in combination with the accompanying drawings:

100-compressor, 101, 102-solenoid valve, 103-gas-liquid separator, 104-belt pulley clutch, 105-electromagnetic clutch, 106-first cylinder, 107-second cylinder, 108-exhaust pipe, 109-suction pipe; 200-a four-way valve, 300-a liquid storage tank, 400-a first throttle valve, 401-a first bypass valve, 500-a second throttle valve, 501-a second bypass valve, 600-a condenser, 601-a condensing fan, 700-an evaporator, 701-a blower, 702-a wind mixing air door, 703-an air conditioner box shell, 800-a warm air water tank, 801-an electronic water pump and 802-an engine cooling box; 102-an obtaining unit; 104-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 the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In other schemes, the parking air conditioner adopts a double-compressor system, but the air conditioning pipeline of the double-compressor system is complex. Two compressors share one set of air conditioning system, and one compressor is easily damaged prematurely due to oil shortage because of different oil return capacities.

According to an embodiment of the present invention, a method for controlling an air conditioning system is provided, 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 is a dual-drive variable-capacitance variable-frequency air conditioning system and is used as an automobile traveling and parking integrated air conditioner. 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.

In step S110, a vehicle speed of the vehicle is obtained, and a system pressure and a system temperature of a dual drive compressor of the air conditioning system are obtained.

At step S120, a driving state of the vehicle is determined according to the vehicle speed of the vehicle 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-drive 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 tank 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 diagram of an embodiment of the parking integrated air conditioner for a truck according to the present invention. As shown in fig. 8, the traveling and parking integrated air conditioner for a truck includes: the air conditioner comprises a compressor 100, a four-way valve 200, a liquid storage tank 300, a first throttle valve 400, a first bypass valve 401, a second throttle valve 500, a second bypass valve 501, a condenser 600, a condensing fan 601, an evaporator 700, a blower 701, an air conditioner shell 703 and a warm air water tank 800.

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

The dual drive 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 that can be driven by a belt pulley and a motor, and different driving modes of the compressor 100 can realize efficient operation of the air conditioning system when different air conditioning load requirements are met during driving and parking. Fig. 11 is a schematic structural diagram of a compressor in a parking and driving integrated air conditioner for a truck according to an embodiment of the present invention. As shown in fig. 11, the compressor 100 includes an electromagnetic valve 101, an electromagnetic valve 102, a gas-liquid separator 103, a pulley clutch 104, an 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-volume cylinder, the second cylinder 107 is the variable-volume cylinder of this case, when the compressor single cylinder moves, solenoid valve 101 is opened, solenoid valve 102 closes, the pressure of the air inlet and the gas vent of second cylinder 107 is unanimous, all be the exhaust pressure, the cylinder gleitbretter can be locked to the cylinder locating pin, the unable compression of second cylinder 107, when the compressor double-cylinder moves, solenoid valve 101 closes, solenoid valve 102 opens, low-pressure gas is inhaled to the second cylinder 107, realize compression function, thereby the compressor carries out the double-bar compressor and realizes the increase-volume.

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

The following further describes a specific process of determining the driving state of the vehicle in step S120, with reference to a schematic flow chart of an embodiment of determining the driving state of the vehicle in the method of the present invention shown in fig. 2, including: 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 the vehicle speed of the vehicle being equal to 0 is greater than or equal to a first set time. The first set time is, for example, 10 min.

And step S220, if the speed of the automobile is equal to 0 and the duration time of the speed of the automobile is 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.

Step S230, if the vehicle speed of the vehicle is not equal to 0 or the vehicle speed of the vehicle is equal to 0 but the duration of the vehicle speed of the vehicle being equal to 0 is less than a first set time, determining that the driving state of the vehicle is a driving state.

In the integrated air conditioner for driving and parking of a truck shown in fig. 8, the compressor 100 is a dual-drive compressor with belt pulley drive and electric drive existing simultaneously, and in addition, compared with a parking air conditioning system in a related scheme, the four-way valve 200 is arranged, so that the heating requirement during parking can be realized, and meanwhile, when the cooling water temperature of an engine at the initial stage of driving in winter does not meet the heating condition, the air conditioning system is firstly utilized to meet the heating requirement of a cockpit, and the process of warming the engine at idle speed is saved.

When the vehicle went, cabin surface air convection heat transfer aggravation, cabin in-cabin temperature and the aggravation of outer ambient temperature heat transfer of car, and can't avoid the sun directly to shine when going, noon illumination intensity is big, the cabin air conditioner load increases, when the vehicle parks, the driver consciously selects the environment of shady and cool or adjusts the locomotive orientation and avoids the sun directly to shine, the (window) curtain in the cabin can be pulled for better rest to some driver, these operations all can reduce the demand of cabin to air conditioner load.

Fig. 9 is a schematic view of a cooling control logic according to an embodiment of the control method of the parking integrated air conditioner for a truck according to the present invention, and fig. 10 is a schematic view of a heating control logic according to an embodiment of the control method of the parking integrated air conditioner for a truck according to the present invention. As shown in fig. 9 and 10, a control method of a parking integrated air conditioner for a truck according to an aspect of the present invention includes: after receiving the start command, the air conditioner controller proceeds to step S1 to determine the requirement of the air conditioner operation mode, and proceeds to step S2 if the operation requirement is the cooling mode, or proceeds to step S12 if the operation requirement is not the cooling mode, i.e., the operation requirement is the heating mode.

And step S2, the running state of the vehicle is judged by reading the value of the vehicle speed sensor of the vehicle, the vehicle speed duration is judged, and the condition that the air conditioning system enters a parking state when the vehicle passes through a congested road section at a traffic light can be eliminated, so that the frequent switching of the running mode of the air conditioning system is caused, and the reliable running of the air conditioning system is influenced. The control method can realize frequent switching of the operation modes of the air conditioning system, influences the reliable operation of the air conditioning system, obtains the running and parking states of the vehicle by judging the vehicle speed state, and further judges the requirements 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 min: if so, the process proceeds to step S7, otherwise, the process proceeds to step S3.

The control method of the integrated air conditioner for the truck and the parking truck mainly comprises the steps of judging the running state of a vehicle, controlling the running state of an air conditioning system, and meeting the requirements of the truck on the running effect of the air conditioner in different environments by switching different running states of the air conditioning system.

In step S130, based on the driving state of the vehicle and the operation mode of the air conditioning system, the dual-drive compressor is controlled to switch between the belt pulley driving mode and the electric driving mode according to the system pressure and the system temperature of the dual-drive 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-capacitance variable-frequency air conditioning system for the truck, which is associated with the traveling state of the whole truck. Specifically, the vehicle state is judged through the vehicle speed, the air conditioner operation mode is obtained through the comprehensive judgment result by combining the pressure and temperature equivalence of the air conditioning system, the stable operation switching of the existing parking integrated air conditioning system under various environments such as truck driving, parking and low-temperature parking is realized, double heat sources are realized during heating in winter, the heating is realized by using the waste heat of an engine during driving, and the heating is realized by using a heat pump air conditioner during parking.

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

In step S130, based on the driving state of the vehicle and the operation mode of the air conditioning system, controlling the dual-drive compressor to switch between the operation in the pulley driving mode and the operation in the electric driving mode according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system, including: the process of controlling the dual-drive compressor to switch operation in a belt pulley driving mode and an electric driving mode under the driving state and the refrigeration mode specifically comprises the following steps:

referring to the flow diagram of an embodiment of the method of the present invention shown in fig. 3, in which the dual-drive compressor is controlled to switch between the belt pulley driving mode and the electric driving mode in the driving state and the refrigeration mode, the specific process of controlling the dual-drive compressor to switch between the belt pulley driving mode and the electric driving mode in the driving state and the refrigeration mode is further described, and the specific process includes: step S310 to step S330.

And step S310, determining whether the high-pressure side pressure of the dual-drive compressor is greater than or equal to a set pressure or not under the condition that the running state of the automobile is a driving state and the air conditioning system operates in a cooling mode.

Step S320, if the high-pressure side pressure of the dual-drive compressor is larger 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, the electromagnetic clutches in the dual-drive compressor are controlled to be disconnected, the belt pulley clutches are controlled to be closed, and then the running state of the automobile is determined continuously according to the automobile speed and the duration time of the automobile.

And S330, if the high-pressure side pressure of the dual-drive compressor is smaller than a set pressure, controlling a condensing fan 601 matched with the condenser 600 to be closed, controlling a first electromagnetic valve to be closed, controlling a second electromagnetic valve to be opened, controlling a first bypass valve 401 to be opened, controlling a second bypass valve 501 to be closed, controlling electromagnetic clutches in the dual-drive compressor to be disconnected and a belt pulley clutch to be closed, and then continuously determining the running state of the automobile according to the speed and the duration time of the automobile.

As shown in fig. 9 and 10, the control method of the integrated parking and driving air conditioner for a truck according to the present invention further includes:

step S3, placing the condenser 600 of the air conditioning system 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 enough to meet the heat exchange requirement of the air conditioning system, and at this time, the condenser fan 601 does not need to be started.

If the condensing fan 601 is controlled to be switched on and off only by simply judging the vehicle speed, the condensing fan 601 which is switched on in time or in advance at a low vehicle speed may be caused, energy waste may be caused, and the reliability of the air conditioning system may be affected seriously, a more intuitive and reliable way is to control the switching 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, the condensing effect of the condensing side of the air conditioner is judged to be insufficient, the condensing fan 601 needs to be switched on, step S5 is executed, and if the pressure value of the high pressure side is detected to be not more than the set pressure aMPa, step S4 is executed, and the control method can avoid the energy waste caused by the untimely switching of the condensing fan 601 or the early switching.

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

Step S5, because the head-on wind speed of the condenser 600 during vehicle driving does not meet the requirement, the heat exchange requirement cannot be met by the convective heat transfer of the condenser 600 caused by the vehicle driving alone, the condensing fan 601 needs to be turned on, and the logic operation proceeds to step S6.

And step S6, judging from the above logics, wherein the operation mode of the air conditioning system is a driving state, the air conditioning load requirement is high, the compressor 100 needs to operate a double-cylinder mode, and the automobile engine operates at the same time.

The compressor 100 may be driven in a pulley-driven manner, and valves and clutches in the air conditioning system may be actuated, and the solenoid valve 101 of the compressor 100 may be closed and the solenoid valve 102 may be opened. Both cylinders of the compressor 100 are put into operation, the first bypass valve 401 is opened, and the second bypass valve 501 is closed. As the flow of the refrigerant participating in the circulation of the air conditioning system is increased, the refrigerant stored in the liquid storage tank 300 also participates in the circulation of the air conditioning system, the electromagnetic clutch 105 is disconnected, and the belt pulley clutch 104 is closed. The air conditioning system performs a pulley double-cylinder cooling mode, and the logic operation of the air conditioning system returns to step S1 to start the operation of the next cycle. The control logic judges the running state of the automobile accurately, judges the refrigerating requirement of the automobile cabin, starts the belt pulley driving mode, changes the running frequency of the compressor 100 along with the speed of the automobile, and enables the air conditioning system to enter a large-refrigerating-capacity output mode to meet the air conditioning requirement when the automobile runs.

In some embodiments, the operation mode of the air conditioning system is a cooling mode. The system temperature of the dual-drive 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.

In step S130, based on the driving state of the vehicle and the operation mode of the air conditioning system, the switching operation of the dual-drive compressor is controlled in the pulley driving mode and the electric driving mode according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system, and the method further includes: the method comprises the following steps of controlling the process of switching the dual-drive compressor to operate in a belt pulley driving mode and an electric driving mode in a parking state and a refrigeration mode, and specifically comprises the following steps:

referring to fig. 4, a flow diagram of an embodiment of controlling the dual-drive compressor to switch between the belt pulley driving mode and the electric driving mode in the parking state and the refrigeration mode in the method of the present invention is further described, wherein the specific process of controlling the dual-drive compressor to switch between the belt pulley driving mode and the electric driving mode in the parking state and the refrigeration mode includes: step S410 to step S440.

Step S410, when the driving state of the vehicle is a parking state and the air conditioning system operates in a cooling mode, controlling a condensing fan 601 matched with the condenser 600 to start.

Step S420, determining whether a temperature difference between the indoor ambient temperature of the vehicle 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, 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, electromagnetic clutches in the dual-drive compressor are controlled to be closed, the belt pulley clutch is controlled to be disconnected, and then 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 is continuously determined.

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, 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 electromagnetic clutches of the motors in the dual-drive compressor are controlled to be closed, the belt pulley clutch is controlled to be disconnected, 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.

and step S7, obtaining that the vehicle is in a parking state and the air conditioning system runs in the parking state by judging the vehicle speed and the duration, and executing step S8.

Step S8, because the vehicle is parked and 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 value delta t 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 higher the demand on the air conditioning load is, the air conditioning system needs to operate at full load to meet the temperature drop demand in the initial stage, and if the difference value delta t between the ambient temperature in the vehicle cabin and the operation target temperature of the air conditioning system is smaller than a certain value, such as the set temperature difference b, the requirement on the air conditioning load by the vehicle cabin is proved to be general, and the load requirement can be met by the operation of the air conditioning system in a single-cylinder state.

And the recommended range of the value of a contrast value b of a difference delta t between the ambient temperature in the vehicle cabin and the operation target temperature of the air conditioning system is 3-5 ℃.

And (4) executing the step S10 when the difference value delta t between the environment temperature in the vehicle cabin and the operation target temperature of the air conditioning system is judged to be more than or equal to the set value b, 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 high, the compressor 100 enters a double-cylinder operation mode, the requirement of rapid temperature drop of the cabin is met, and the comfort experience is improved. The first bypass valve 401 is opened and the second bypass valve 501 is closed. The electromagnetic clutch 105 is disengaged and the pulley clutch 104 is engaged. Air conditioning system progress belt pulley double-cylinder refrigeration mode.

And step S11, opening the electromagnetic valve 101 and closing the electromagnetic valve 102 of the air conditioning system, wherein the air conditioning load is general, and the single-cylinder operation of the compressor 100 meets the refrigerating requirement of the vehicle cabin. The first bypass valve 401 is opened and the second bypass valve 501 is closed. The electromagnetic clutch 105 is engaged and the pulley clutch 104 is disengaged. And the air conditioning system enters a parking refrigeration single-cylinder operation mode. The control logic of the section mainly solves the problems that when a vehicle is parked, the power supply of the air conditioning system is provided by a vehicle self-contained storage battery, the battery capacity is limited, the air conditioning system needs to be operated as energy-saving and efficient as far as possible, and the compressor is controlled to operate efficiently in the early stage of meeting the refrigeration requirement of the 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 operation mode of the air conditioning system is a heating mode. The system temperature of the dual-drive compressor of the air conditioning system comprises: an outdoor ambient temperature of the automobile.

In step S130, based on the driving state of the vehicle and the operation mode of the air conditioning system, the switching operation of the dual-drive compressor is controlled in the pulley driving mode and the electric driving mode according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system, and the method further includes: the method comprises the following steps of controlling the process of switching the dual-drive compressor to operate in a belt pulley driving mode and an electric driving mode in a parking state and a heating mode, and specifically comprising the following steps:

referring to fig. 5, a flow diagram of an embodiment of controlling the dual-drive compressor to switch between the pulley driving mode and the electric driving mode in the parking mode and the heating mode in the method of the present invention is further described, wherein the specific process of controlling the dual-drive compressor to switch between the pulley driving mode and the electric driving mode in the parking mode and the heating mode includes: step S510 to step S530.

And step S510, determining whether the outdoor environment temperature of the automobile is greater than or equal to a set environment temperature or not under the condition that the running state of the automobile is a parking state and the air conditioning system operates in a heating mode.

And step S520, 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 401 to be closed, controlling the second bypass valve 501 to be opened, controlling electromagnetic clutches in the dual-drive compressor to be closed and belt pulley clutches to be disconnected, and then continuously determining the driving state of the automobile according to the speed and duration of the automobile.

Step S530, if the outdoor environment temperature of the automobile is lower 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 401 is controlled to be closed, the second bypass valve 501 is controlled to be opened, electromagnetic clutches in the dual-drive compressor are controlled to be closed, a belt pulley clutch is controlled to be disconnected, and then the driving state of the automobile is determined continuously according to the speed and the duration time of the automobile.

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

And S13, heating can be performed by using engine cooling water in the winter heating truck driving state, and heating is performed by using a heat pump air conditioning system in the vehicle parking state. And judging the parking state of the vehicle after judging the heating requirement, judging that the value of the vehicle speed sensor is 0, the duration is more than or equal to 10min, judging that the parking state is the parking state when the condition is met, and executing step S14, otherwise executing step S17. Here, the purpose of the determination condition is the same as the cooling mode, and the description thereof is omitted.

Step S14, when heating in winter, the outer ring temperature has a great influence on the operation effect of the air conditioner, especially on the operation of a pure heat pump in a parking state, if the outer ring temperature is low, the requirement of a vehicle cabin on a heating load is great, 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 so, go to step S15, otherwise go to step S16.

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 electromagnetic clutch 105 is engaged and the pulley clutch 104 is disengaged. The air conditioning system enters an electric double-cylinder heating mode.

In 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 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 blend door 702. As shown in fig. 8, the traveling and parking integrated air conditioner for a truck further includes: an electronic water pump 801, an engine cooling tank 802 and a mixed air damper 702.

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

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

referring to fig. 6, a flow diagram of an embodiment of controlling the dual-drive compressor to switch between the belt pulley driving mode and the electric driving mode in the driving state and the heating mode of the method of the present invention is further described, wherein the specific process of controlling the dual-drive compressor to switch between the belt pulley driving mode and the electric driving mode in the driving state and the heating mode includes: step S610 to step S630.

And step S610, determining whether the engine cooling temperature of the automobile is greater than or equal to a set cooling temperature or not under the condition that the running state of the automobile is a driving state and the air conditioning system is operated in a heating mode.

Step S620, 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 opened, controlling the air mixing damper 702 to be opened, and then continuing to determine the driving state of the automobile according to the speed and duration of the automobile.

And step S630, if the engine cooling temperature of the automobile is lower than the set cooling temperature, executing a control process of controlling the dual-drive compressor to switch operation under the belt pulley driving mode and the electric driving mode in a parking state and a heating mode.

step S17, when the vehicle runs in winter, in the initial starting stage of the vehicle, the temperature of cooling water of the engine is low, at the moment, the heating cycle is forcibly started, the damage of the engine can be caused, 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 vehicle cabin.

And (4) judging that the cooling water temperature t of the engine is not less than the set water temperature d, if the cooling water temperature t is not less than the set water temperature d, executing S18, and if the cooling water temperature t is not less than the set water temperature d, executing step S14. The value range of a contrast value d of the temperature t of the cooling water is recommended to be 35-45 ℃. The section is mainly a process for saving idling warming.

And step 18, when the temperature t of the cooling water of the engine meets the heating requirement, the electronic water pump 801 is opened, the air mixing damper 702 is opened, and the mode of heating by using the cooling water of the engine is entered.

In the above, after the execution of step S15, step S16, and step S18 is completed, the control logic returns to step S12 and then proceeds to the next cycle.

In the scheme of the invention, a set of air conditioning system is used for meeting the air conditioning requirements of the truck during driving and parking. Specifically, the air conditioning system is switched to operate in different modes, so that the air conditioning system can efficiently operate under different air conditioning load requirements, the energy-saving effect is achieved, and the problem that a single compressor system cannot efficiently operate under the large-span cold quantity requirement is solved. That is to say, the scheme of the invention adopts the control technology of the dual-drive variable-capacity variable-frequency air conditioning system, and realizes the high-efficiency operation of the compressor under different operation loads through the single-cylinder and double-cylinder operation switching logic of the compressor. The problem of single compressor system can't high-efficient operation when the cold volume demand of large-span is solved, air conditioning system operating efficiency can be promoted to reach energy-conservation high-efficient.

In the scheme of the invention, the variable capacity operation of the compressors under various modes is realized by switching the driving control of the belt wheel driving and the electric driving of the compressors and the cylinder bodies of the compressors, and the problem that one compressor is easily damaged too early due to oil shortage because the two compressors share one set of air conditioning system and the oil return capacities are different is solved. That is to say, the scheme of the invention sets the switching logic of the pulley drive and the electric drive of the compressor, so that the integrated compressor integrating the pulley and the electric drive can realize stable switching, and solves the problem that a double-compressor system with the pulley compressor and the electric drive compressor connected in parallel is needed in related schemes, thereby solving the problem of oil return in the double-compressor system.

By adopting the technical scheme of the embodiment, the compressor adopts the dual-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 temperature equivalence of the air conditioning system and comprehensively judging the result, the stable operation switching of the existing parking integrated air conditioning system in various environments such as truck driving, parking, low-temperature parking and the like 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 dual-drive compressor, the running state of the air conditioning system is controlled by judging the running state of the vehicle, the running effect of the vehicle on the air conditioner in different environments is met by switching the different running states of the air conditioning system, the energy-saving effect is achieved, and the problem that a single compressor system cannot run efficiently when the large-span cold quantity 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 diagram of an embodiment of the apparatus of the present invention is shown. The air conditioning system is a dual-drive variable-capacitance variable-frequency air conditioning system and is used as an automobile traveling and parking integrated air conditioner. 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.

The obtaining unit 102 is configured to obtain a vehicle speed of the vehicle, and obtain a system pressure and a system temperature of a dual-drive compressor of the air conditioning system. The specific functions and processes of the acquiring unit 102 are referred to in step S110.

A control unit 104 configured to determine a driving state of the automobile according to a speed of the automobile and a duration thereof. The specific function and processing of the control unit 104 are referred to in step S120.

In the example shown in fig. 8, the compressor 100 is a dual-drive compressor that can be driven by a belt pulley and a motor, and different driving modes of the compressor 100 can realize efficient operation of the air conditioning system when different air conditioning load requirements are met during driving and parking. The compressor 100 includes an electromagnetic valve 101, an electromagnetic valve 102, a gas-liquid separator 103, a pulley clutch 104, an 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 the driving state of the automobile according to the speed and the duration of the automobile, and includes:

the control unit 104 is specifically further configured to determine whether the vehicle speed of the automobile is equal to 0, and determine whether a duration in which the vehicle speed of the automobile is equal to 0 is greater than or equal to a first set time. The first set time is, for example, 10 min. The specific functions and processes of the control unit 104 are also referred to in step S210.

The control unit 104 is specifically 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 the time that the speed of the automobile is equal to 0 is greater than or equal to a first set time. The specific functions and processes of the control unit 104 are also referred to in step S220.

The control unit 104 is specifically further configured to determine that the driving state of the automobile is a driving state if the vehicle speed of the automobile is not equal to 0 or the vehicle speed of the automobile is equal to 0 but the duration of the vehicle speed of the automobile being equal to 0 is less than a first set time. The specific function and processing of the control unit 104 are also referred to in step S230.

Fig. 9 is a schematic view of a cooling control logic of the control device of the integrated air conditioner for a truck according to an embodiment of the present invention, and fig. 10 is a schematic view of a heating control logic of the control device of the integrated air conditioner for a truck according to an embodiment of the present invention. As shown in fig. 9 and 10, the control device of the integrated parking and driving air conditioner for a truck according to the present invention includes: after receiving the start command, the air conditioner controller proceeds to step S1 to determine the requirement of the air conditioner operation mode, and proceeds to step S2 if the operation requirement is the cooling mode, or proceeds to step S12 if the operation requirement is not the cooling mode, i.e., the operation requirement is the heating mode.

And step S2, the running state of the vehicle is judged by reading the value of the vehicle speed sensor of the vehicle, the vehicle speed duration is judged, and the condition that the air conditioning system enters a parking state when the vehicle passes through a congested road section at a traffic light can be eliminated, so that the frequent switching of the running mode of the air conditioning system is caused, and the reliable running of the air conditioning system is influenced. The control device can frequently switch the operation modes of the air conditioning system, influences the reliable operation of the air conditioning system, obtains the running and parking states of the vehicle by judging the vehicle speed state, and further judges the requirements 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 min: if so, the process proceeds to step S7, otherwise, the process proceeds to step S3.

The control device of the integrated air conditioner for the truck and the parking is mainly used for controlling the running state of the air conditioning system through judging the running state of the vehicle, and meeting the requirements of the truck on the running effect of the air conditioner in different environments through switching different running states of the air conditioning system.

The control unit 104 is further configured to control the dual-drive compressors to switch between the belt pulley drive mode and the electric drive mode according to the system pressure and the system temperature of the dual-drive compressors of the air conditioning system based on the driving state of the vehicle and the operation mode of the air conditioning system. The specific function and processing of the control unit 104 are 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-capacitance variable-frequency air conditioning system for the truck, which is associated with the traveling state of the whole truck. Specifically, the vehicle state is judged through the vehicle speed, the air conditioner operation mode is obtained through the comprehensive judgment result by combining the pressure and temperature equivalence of the air conditioning system, the stable operation switching of the existing parking integrated air conditioning system under various environments such as truck driving, parking and low-temperature parking is realized, double heat sources are realized during heating in winter, the heating is realized by using the waste heat of an engine during driving, and the heating is realized by using a heat pump air conditioner during parking.

The control unit 104 controls the dual-drive compressor to switch between the belt pulley driving mode and the 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 driving state of the vehicle and the operation mode of the air conditioning system, and includes: the process of controlling the dual-drive compressor to switch operation in a belt pulley driving mode and an electric driving mode under the driving state and the refrigeration mode specifically comprises the following steps:

the control unit 104 is specifically configured to determine 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 vehicle is a driving state and the air conditioning system is operating in a cooling mode. The specific functions and processes of the control unit 104 are also referred to in step S310.

The control unit 104 is specifically configured to control the condensing fan 601 matched with the condenser 600 to be started if the high-pressure side pressure of the dual-drive compressor is greater than or equal to a set pressure, control the first electromagnetic valve to be closed, control the second electromagnetic valve to be opened, control the first bypass valve 401 to be opened, control the second bypass valve 501 to be closed, control the electromagnetic clutches in the dual-drive compressor to be disconnected and the belt pulley clutches to be closed, and then continuously determine the running state of the automobile according to the automobile speed and the duration time of the automobile. The specific functions and processes of the control unit 104 are also referred to in step S320.

The control unit 104 is specifically configured to control the condensing fan 601 matched with the condenser 600 to be closed, control the first electromagnetic valve to be closed, control the second electromagnetic valve to be opened, control the first bypass valve 401 to be opened, control the second bypass valve 501 to be closed, control the electromagnetic clutches in the dual-drive compressor to be disconnected and the belt pulley clutches to be closed, and then continuously determine the driving state of the automobile according to the automobile speed and the duration time of the automobile if the high-pressure side pressure of the dual-drive compressor is less than the set pressure. The specific functions and processes of the control unit 104 are also referred to in step S330.

As shown in fig. 9 and 10, the control device of the integrated parking and driving air conditioner for a truck according to the present invention further includes:

If the condensing fan 601 is controlled to be switched on and off only by simply judging the vehicle speed, the condensing fan 601 which is possibly opened in time or in advance at a low vehicle speed is caused to cause energy waste, and the reliability of the air conditioning system is possibly influenced in a serious case, a more intuitive and reliable mode is to control the switching 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, the condensing effect of the condensing side of the air conditioner is judged to be insufficient, the condensing fan 601 needs to be switched on, step S5 is executed, and if the pressure value of the high-pressure side is detected to be not more than the set pressure aMPa, step S4 is executed, and the control device can avoid the energy waste caused by the untimely switching of the condensing fan 601 or the early switching on.

The control unit 104 controls the dual-drive compressor to switch between the belt pulley driving mode and the 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 driving state of the vehicle and the operation mode of the air conditioning system, and further includes: the method comprises the following steps of controlling the process of switching the dual-drive compressor to operate in a belt pulley driving mode and an electric driving mode in a parking state and a refrigeration mode, and specifically comprises the following steps:

the control unit 104 is specifically configured to control the start of the condensing fan 601 matching with the condenser 600 when the driving state of the automobile is a parking state and the air conditioning system is operating in a cooling mode. The specific functions and processes of the control unit 104 are also referred to in step S410.

The control unit 104 is further specifically configured to determine whether a temperature difference between the indoor ambient 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). The specific function and processing of the control unit 104 are also referred to in step S420.

The control unit 104 is specifically configured to control the first electromagnetic valve to be closed, control the second electromagnetic valve to be opened, control the first bypass valve 401 to be opened, control the second bypass valve 501 to be closed, control actuation of the electromagnetic clutches in the dual-drive compressor and disconnection of the pulley clutch if a 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 a 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 functions and processes of the control unit 104 are also referred to in step S430.

The control unit 104 is specifically 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, control the electromagnetic clutch actuation and the pulley clutch disconnection in the dual-drive compressor, 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 functions and processes of the control unit 104 are also referred to in step S440.

The control unit 104 controls the dual-drive compressor to switch between the belt pulley driving mode and the 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 driving state of the vehicle and the operation mode of the air conditioning system, and further includes: the method comprises the following steps of controlling the process of switching the dual-drive compressor to operate in a belt pulley driving mode and an electric driving mode in a parking state and a heating mode, and specifically comprising 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 driving state of the automobile is a parking state and the air conditioning system is operating in a heating mode. The specific functions and processes of the control unit 104 are also referred to in step S510.

The control unit 104 is specifically configured to control the first electromagnetic valve to open, control the second electromagnetic valve to close, control the first bypass valve 401 to close, control the second bypass valve 501 to open, control electromagnetic clutches in the dual-drive compressor to close, and control the pulley clutches to disconnect if the outdoor environment temperature of the automobile is greater than or equal to a set environment temperature, and then continue to determine the driving state of the automobile according to the speed and duration of the automobile. The specific functions and processes of the control unit 104 are also referred to in step S520.

The control unit 104 is specifically configured to control the first electromagnetic valve to be closed, control the second electromagnetic valve to be opened, control the first bypass valve 401 to be closed, control the second bypass valve 501 to be opened, control electromagnetic clutches of the two-drive compressor to be closed and the pulley clutch to be disconnected, and then continuously determine the driving state of the automobile according to the speed and duration of the automobile. The specific functions and processes of the control unit 104 are 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-drive compressor to switch between the belt pulley driving mode and the 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 driving state of the vehicle and the operation mode of the air conditioning system, and further includes: the process of controlling the dual-drive compressor to switch operation under the belt pulley driving mode and the electric driving mode in the driving state and the heating mode 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 driving state of the automobile is a driving state and the air conditioning system is operating in a heating mode. The specific functions and processes of the control unit 104 are also referred to in step S610.

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

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

Since the processes and functions implemented by the apparatus of this embodiment substantially correspond to the embodiments, principles and examples of the method, reference may be made to the related descriptions in the embodiments without being detailed in the description of this embodiment, which is not described herein again.

By adopting the technical scheme of the invention, the compressor adopts the dual-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 temperature equivalence of the air conditioning system and the comprehensive judgment result, the stable operation switching of the existing parking integrated air conditioning system under 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, the operation efficiency of the air conditioning system can be improved, and the energy conservation and the high efficiency are realized.

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 described above.

Since the processing and functions of the air conditioning system of this embodiment are basically corresponding to the embodiments, principles and examples of the foregoing devices, reference may be made to the related descriptions in the foregoing embodiments without being detailed in the description of this embodiment.

By adopting the technical scheme of the invention, the compressor adopts the dual-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 temperature equivalence of the air conditioning system and the comprehensive judgment result, the stable operation switching of the existing parking integrated air conditioning system under 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-cylinder and 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 when the program is executed, a device in which the storage medium is located is controlled to execute the control method of the air conditioning system described above.

Since the processing and functions implemented by the storage medium of this embodiment substantially correspond to the embodiments, principles, and examples of the foregoing method, reference may be made to the related descriptions in the foregoing embodiments without being detailed in the description of this embodiment.

By adopting the technical scheme of the invention, the compressor adopts the dual-drive compressor in the air conditioning system, the vehicle state is judged by the vehicle speed, the air conditioning operation mode is obtained by combining the pressure and temperature equivalence of the air conditioning system and the comprehensive judgment result, the stable operation switching of the existing parking integrated air conditioning system under 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 variable capacity operation of the compressor under various modes is realized by matching the drive control of the belt wheel drive and the electric drive of the compressor with the switching of the cylinder body of the compressor.

In summary, it is readily understood by those skilled in the art that the advantageous modes described above 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, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement 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. A control method of an air conditioning system is characterized in that the air conditioning system, in particular to a dual-drive variable-capacitance variable-frequency air conditioning system, is used as an automobile traveling and parking integrated air conditioner; 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 dual-drive compressor of the air conditioning system;

determining the running state of the automobile according to the speed and the duration time of the automobile;

and controlling the dual-drive compressor to switch to operate under 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.

2. The control method of an air conditioning system according to claim 1, further comprising: a four-way valve (200), a liquid storage tank (300), a condenser (600) and an evaporator (700); the four-way valve (200) is respectively communicated with the dual-drive compressor, the condenser (600) and the evaporator (700); the liquid storage tank (300) is arranged between the condenser (600) and the evaporator (700);

a first throttling valve (400) and a first bypass valve (401) are arranged between the condenser (600) and the liquid storage tank (300) in parallel; a second bypass valve (500) and a second bypass valve (501) are arranged between the liquid storage tank (300) and the evaporator (700) in parallel;

the dual drive compressor includes: a first solenoid valve and a second solenoid valve;

determining the driving state of the automobile according to the speed and the duration of the automobile, wherein the method comprises the following steps:

determining whether the vehicle speed of the vehicle is equal to 0 and determining whether the duration of the vehicle speed of the vehicle 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 that the speed of the automobile is 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 vehicle speed of the vehicle is not equal to 0 or the vehicle speed of the vehicle is equal to 0 but the duration of the vehicle speed of the vehicle is equal to 0 is less than a first set time, determining that the driving state of the vehicle is a driving state.

3. The control method of the air conditioning system according to claim 2, wherein the operation mode of the air conditioning system is a cooling mode; the system pressure of the dual-drive compressor of the air conditioning system comprises: the high-pressure side pressure of the dual-drive compressor;

based on the running state of the automobile and the running mode of the air conditioning system, the double-drive compressor is controlled to switch and run under the belt pulley driving mode and the electric driving mode according to the system pressure and the system temperature of the double-drive compressor of the air conditioning system, and the method comprises the following steps:

determining whether the high-pressure side pressure of the dual-drive compressor is greater than or equal to a set pressure or not under the condition that the running state of the automobile is a running state and the air conditioning system runs in a refrigeration mode;

if the high-pressure side pressure of the dual-drive compressor is larger than or equal to a 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, electromagnetic clutches in the dual-drive compressor are controlled to be disconnected, a belt pulley clutch is controlled to be closed, and then the driving state of the automobile is determined continuously 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, the electromagnetic clutches in the dual-drive compressor are controlled to be disconnected, the belt pulley clutches are controlled to be closed, and then the running state of the automobile is determined continuously according to the automobile speed and the duration time of the automobile.

4. The control method of the 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-drive 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 driving state of the automobile and the operation mode of the air conditioning system, controlling the dual-drive compressor to switch and operate under 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, and the method further comprises the following steps:

when the running state of the automobile is a parking state and the air conditioning system runs in a refrigeration mode, controlling a condensing fan (601) matched with the condenser (600) 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 larger than or equal to the 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 electromagnetic clutches in the dual-drive compressor to be closed and a belt pulley clutch to be disconnected, 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 larger 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 electromagnetic clutch in the dual-drive compressor is controlled to be closed, the belt pulley clutch is controlled to be disconnected, 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 or not is continuously determined.

5. The control method of the 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-drive compressor of the air conditioning system comprises: an 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 under the condition that the driving state of the automobile is a parking state and the air conditioning system operates 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 (401) to be closed, controlling the second bypass valve (501) to be opened, controlling electromagnetic clutches in the dual-drive compressor to be closed and a belt pulley clutch to be disconnected, and then continuously determining the driving state of the automobile according to the speed and the duration time of the automobile;

if the outdoor environment temperature of the automobile is lower 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 (401) is controlled to be closed, the second bypass valve (501) is controlled to be opened, electromagnetic clutches in the dual-drive compressor are controlled to be closed, a belt pulley clutch is controlled to be disconnected, and then the driving state of the automobile is determined continuously according to the speed and duration time of the automobile.

6. The control method of an air conditioning system according to claim 2, characterized by further comprising: an electric water pump (801) and a mixing damper (702);

the operation mode of the air conditioning system is a heating mode; the system temperature of the dual-drive 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 or not under the condition that the driving state of the automobile is a driving state and the air conditioning system operates 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 opened, controlling the air mixing damper (702) to be opened, and then continuously determining the running state of the automobile according to the speed and the duration time of the automobile;

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

7. A control device of an air conditioning system is characterized in that the air conditioning system, in particular to a dual-drive variable-capacitance variable-frequency air conditioning system, is used as an automobile traveling and parking integrated air conditioner; the air conditioning system includes: a dual drive compressor; the control device of the air conditioning system comprises:

the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is configured to acquire the speed of the automobile and acquire the system pressure and the system temperature of a dual-drive compressor of the air conditioning system;

a control unit configured to determine a driving 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 compressors to switch between operation in a belt pulley driving mode and operation in an electric driving mode according to system pressure and system temperature of the dual-drive compressors of the air conditioning system based on a driving state of the automobile and an operation mode of the air conditioning system.

8. The control device of an air conditioning system according to claim 7, characterized by further comprising: a four-way valve (200), a liquid storage tank (300), a condenser (600) and an evaporator (700); the four-way valve (200) is respectively communicated with the dual-drive compressor, the condenser (600) and the evaporator (700); the liquid storage tank (300) is arranged between the condenser (600) and the evaporator (700);

the control unit determines the driving state of the automobile according to the speed and the duration of the automobile, and comprises the following steps:

9. The control device of the air conditioning system according to claim 8, wherein the operation mode of the air conditioning system is a cooling mode; the system pressure of the dual-drive compressor of the air conditioning system comprises: the high-pressure side pressure of the dual-drive compressor;

the control unit is based on the running state of the automobile and the running mode of the air conditioning system, and controls the dual-drive compressor to switch and run under 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, and the control unit comprises:

10. The control device of the air conditioning system according to claim 8, wherein the operation mode of the air conditioning system is a cooling mode; the system temperature of the dual-drive 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 is based on the running state of the automobile and the running mode of the air conditioning system, and controls the dual-drive compressor to switch and run under the belt pulley driving mode and the electric driving mode according to the system pressure and the system temperature of the dual-drive compressor of the air conditioning system, and the control unit further comprises:

11. The control device of the air conditioning system according to claim 8, wherein the operation mode of the air conditioning system is a heating mode; the system temperature of the dual-drive compressor of the air conditioning system comprises: an outdoor ambient temperature of the automobile;

12. The control device of an air conditioning system according to claim 8, characterized by further comprising: an electric water pump (801) and a mixing damper (702);

13. An air conditioning system, comprising: the control device of an air conditioning system as claimed in any one of claims 7 to 12.

14. A storage medium characterized by comprising a stored program, wherein an apparatus in which the storage medium is located is controlled to execute the control method of the air conditioning system according to any one of claims 1 to 6 when the program is executed.