Control method and device of air conditioning system, air conditioning system and vehicle

Abstract

The invention provides a control method and device of an air conditioning system, the air conditioning system and a vehicle, and relates to the technical field of intelligent control, in particular to the technical field of automatic driving, intelligent cabin, air conditioning system design and the like. According to the specific implementation scheme, the current operation state of the temperature control system is determined; under the condition that the current operation state is the small-load operation state, the actual refrigerant pressure and the target refrigerant pressure of a compressor in the temperature control system are determined based on the small-load operation state; under the condition that the operation result of the temperature control system is determined to be a first operation result based on the actual refrigerant pressure and the target refrigerant pressure, at least part of energy generated by the temperature control system is transferred to an energy recovery system; wherein the first operation result is energy supply excess. The service life of the compressor can be prolonged, and therefore the overhaul and maintenance cost of the air conditioning system is reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of intelligent control, in particular to the technical field of automatic driving, intelligent cockpit, air conditioning system design, and the like, and specifically relates to an air conditioning system control method and device, an air conditioning system, and a vehicle. BACKGROUND

[0002] In the transitional seasons such as spring and autumn, the environmental temperature is relatively mild, neither as hot as in summer nor as cold as in winter. At this time, people's demand for air conditioning cooling or heating is relatively low, and therefore, the air conditioning system is mostly in a small load operation state. However, in some cases, even if the air conditioning system is already in a small load operation state, there can still be a problem of excess energy supply (for example, cold or heat). At present, to solve this problem, the air conditioning system is usually adjusted by adjusting the cold and warm air doors. If this method cannot effectively alleviate the problem of excess energy supply, the compressor can be temporarily turned off, and then the compressor can be restarted when the outlet air temperature is equivalent to the target air temperature. However, this method reduces the service life of the compressor, thereby increasing the maintenance cost of the air conditioning system. SUMMARY

[0003] The present disclosure provides an air conditioning system control method and device, an air conditioning system, and a vehicle.

[0004] According to a first aspect of the present disclosure, an air conditioning system control method is provided, which is applied to a controller included in an air conditioning system, and the air conditioning system further includes a temperature control system.

[0005] The method includes:

[0006] determining a current operation state of the temperature control system;

[0007] in a case where the current operation state is a small load operation state, determining an actual refrigerant pressure and a target refrigerant pressure of a compressor in the temperature control system based on the small load operation state;

[0008] in a case where, based on the actual refrigerant pressure and the target refrigerant pressure, it is determined that an operation result of the temperature control system is a first operation result, transferring at least part of energy generated by the temperature control system to an energy recovery system; wherein the first operation result is energy supply excess.

[0009] According to a second aspect of the present disclosure, an air conditioning system control device is provided, which is applied to a controller included in an air conditioning system, and the air conditioning system further includes a temperature control system.

[0010] The device includes:

[0011] a state determination unit configured to determine a current operation state of the temperature control system;

[0012] The pressure determining unit is configured to determine an actual refrigerant pressure and a target refrigerant pressure of the compressor in the temperature control system based on the small-load operating state when the current operating state is the small-load operating state.

[0013] The energy transferring unit is configured to transfer at least part of energy generated by the temperature control system to an energy recovery system when it is determined that the operating result of the temperature control system is a first operating result based on the actual refrigerant pressure and the target refrigerant pressure, wherein the first operating result is an energy supply surplus.

[0014] According to a third aspect of the present disclosure, an air conditioning system is provided, comprising a controller, and a temperature control system connected to the controller.

[0015] The controller is configured to:

[0016] determine a current operating state of the temperature control system;

[0017] determine an actual refrigerant pressure and a target refrigerant pressure of the compressor in the temperature control system based on the small-load operating state when the current operating state is the small-load operating state;

[0018] transfer at least part of energy generated by the temperature control system to an energy recovery system when it is determined that the operating result of the temperature control system is a first operating result based on the actual refrigerant pressure and the target refrigerant pressure, wherein the first operating result is an energy supply surplus.

[0019] According to a fourth aspect of the present disclosure, a vehicle is provided, comprising the air conditioning system provided in the third aspect of the present disclosure.

[0020] According to a fifth aspect of the present disclosure, an electronic device is provided, comprising:

[0021] at least one processor;

[0022] a memory connected to the at least one processor in communication;

[0023] The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method provided in the first aspect of the present disclosure.

[0024] According to a sixth aspect of the present disclosure, a non-transitory computer-readable storage medium storing computer instructions is provided, wherein the computer instructions are used to cause the computer to perform the method provided in the first aspect of the present disclosure.

[0025] According to a seventh aspect of the present disclosure, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the method provided in the first aspect of the present disclosure.

[0026] The service and maintenance cost of the air conditioning system can be reduced by prolonging the service life of the compressor.

[0027] It should be understood that the matters described in this section are not intended to identify key or important features of the embodiments of the present disclosure, and are not used to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings are used to better understand the present scheme, and do not constitute a limitation on the present disclosure. Among them:

[0029] Figure 1 An existing control method of an air conditioning system provided by an embodiment of the present disclosure is illustrated;

[0030] Figure 2 A schematic diagram of an air conditioning system and its connection relationship provided by an embodiment of the present disclosure;

[0031] Figure 3 A flowchart of a control method of an air conditioning system provided by an embodiment of the present disclosure;

[0032] Figure 4 A schematic diagram of an air conditioning system and its connection relationship provided by an embodiment of the present disclosure;

[0033] Figure 5 A schematic diagram of an air conditioning system and its connection relationship provided by an embodiment of the present disclosure;

[0034] Figure 6 Another part of a flowchart of a control method of an air conditioning system provided by an embodiment of the present disclosure;

[0035] Figure 7 A structural schematic diagram of a temperature control system in an air conditioning system provided by an embodiment of the present disclosure;

[0036] Figure 8 A schematic diagram of an air conditioning system and its connection relationship provided by an embodiment of the present disclosure;

[0037] Figure 9 An auxiliary illustration of a control method of an air conditioning system provided by an embodiment of the present disclosure;

[0038] Figure 10 An auxiliary illustration of a control method of an air conditioning system provided by an embodiment of the present disclosure;

[0039] Figure 11 An auxiliary illustration of a control method of an air conditioning system provided by an embodiment of the present disclosure;

[0040] Figure 12An auxiliary explanatory diagram of a control method of an air conditioning system provided by an embodiment of the present disclosure;

[0041] Figure 13 An application scenario diagram of a control method of an air conditioning system provided by an embodiment of the present disclosure;

[0042] Figure 14 A structural schematic diagram of a control device of an air conditioning system provided by an embodiment of the present disclosure;

[0043] Figure 15 A schematic structural block diagram of an electronic device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0044] Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings, which include various details of the embodiments of the present disclosure to assist in understanding, which should be considered in their context only. Therefore, those of ordinary skill in the art should recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope of the present disclosure. Also, for the sake of clarity and conciseness, the description below omits the description of well-known functions and structures.

[0045] As described in the background, at present, to solve the problem of excess energy supply, the cold and warm air door of the air conditioning system is usually adjusted to alleviate the problem, and if this method cannot effectively alleviate the problem of excess energy supply, the compressor can be temporarily closed, and then restarted after the outlet air temperature is equivalent to the target air temperature. However, the inventors have found that using the above method, the compressor will reduce its service life due to frequent start and stop. Moreover, when the air conditioning system is in a small load heating state, to ensure that the outlet air temperature is equivalent to the target air temperature, the compressor will be in a low speed and high pressure state for a long time, thereby triggering the overload and overcurrent protection shutdown mechanism for itself. This not only further affects the outlet air temperature, but also further reduces the service life of the compressor, thereby increasing the maintenance cost of the air conditioning system.

[0046] In addition, please refer to Figure 1In current air conditioning systems, under heavy heating load, refrigerant may migrate from the compressor's suction end to the evaporator (including both the first and second evaporators, but more commonly the second) and condense, thus reducing the system's heating efficiency. Currently, this problem is typically addressed by adding a one-way pressure shut-off valve to the refrigerant line between the compressor's suction end and the evaporator. Because this valve is closed when the pressure difference is small, refrigerant cannot migrate from the compressor's suction end to the evaporator. However, the inventors have discovered that refrigerant migration typically only occurs in extremely cold environments below -15 degrees Celsius. Therefore, the utilization rate of the added one-way pressure shut-off valve is extremely low, while its cost is relatively high. Furthermore, since refrigerant can still pass through the one-way pressure shut-off valve under normal cooling load, its lifespan is reduced, further increasing the maintenance costs of the air conditioning system.

[0047] To address at least some of the above-mentioned problems, this disclosure provides an air conditioning system and its control method. The control method for the air conditioning system can be applied to a controller included in the air conditioning system. Here, the controller can be a Field Programmable Gate Array (FPGA), a Microcontroller Unit (MCU), a Complex Programmable Logic Device (CPLD), a Central Processing Unit (CPU), a Data Processing Unit (DPU), a System on Chip (SOC), etc.

[0048] In addition, please combine Figure 2 In this embodiment of the present disclosure, the air conditioning system 210 may further include a temperature control system 212 connected to the controller 211. Specifically, the temperature control system 212 may be communicatively connected to the controller 211 to realize cooling and heating functions under the control of the controller 211.

[0049] The following will combine Figure 3 First, a control method for an air conditioning system provided in this disclosure will be described. Before proceeding, it should be noted that although in Figure 3 The diagram illustrates the logical sequence of the control method for the air conditioning system; however, in some cases, it can be executed in a different sequence. Figure 3 The steps shown or described.

[0050] Step S301, determine the current operating state of the temperature control system.

[0051] The current operating state can be any operating state of the temperature control system, for example, one of a small load operating state, a regular load operating state, and a large load operating state. Here, the small load operating state can be a small load cooling state or a small load heating state; the regular load operating state can be a regular load cooling state or a regular load heating state; and the large load operating state can be a large load cooling state or a large load heating state.

[0052] Step S302, in the case where the current operating state is the small load operating state, determine the actual refrigerant pressure and the target refrigerant pressure of the compressor in the temperature control system based on the small load operating state.

[0053] The small load operating state can be a small load cooling state or a small load heating state, so as to improve the application range of the control method of the air conditioning system provided in the present disclosure.

[0054] Therefore, in the embodiments of the present disclosure, in the case where the small load operating state is a small load cooling state, the actual low-pressure refrigerant of the compressor, i.e., the actual suction pressure, can be obtained as the actual refrigerant pressure, and the target low-pressure refrigerant of the compressor, i.e., the target suction pressure, can be obtained as the target refrigerant pressure; in the case where the small load operating state is a small load heating state, the actual high-pressure refrigerant of the compressor, i.e., the actual discharge pressure, can be obtained as the actual refrigerant pressure, and the target high-pressure refrigerant of the compressor, i.e., the target discharge pressure, can be obtained as the target refrigerant pressure.

[0055] Step S303, in the case where the operating result of the temperature control system is determined to be a first operating result based on the actual refrigerant pressure and the target refrigerant pressure, transfer at least part of the energy generated by the temperature control system to the energy recovery system.

[0056] The first operating result can be an excess of energy supply, specifically, in the case where the small load operating state is a small load cooling state, the first operating result can be an excess of cooling capacity supply and unadjustable; in the case where the small load operating state is a small load heating state, the first operating result can be an excess of heat supply and unadjustable.

[0057] In addition, it can be understood that the energy recovery system can be connected to the temperature control system in the embodiments of the present disclosure. Thus, in the case where the operating result of the temperature control system is determined to be a first operating result based on the actual refrigerant pressure and the target refrigerant pressure, at least part of the energy generated by the temperature control system can be transferred to the energy recovery system.

[0058] The control method of the air conditioning system provided in the embodiment of the present disclosure can determine the current operating state of the temperature control system, and in the case that the current operating state is a small load operating state, determine the actual refrigerant pressure and the target refrigerant pressure of the compressor in the temperature control system based on the small load operating state, and in the case that the operating result of the temperature control system is determined to be a first operating result based on the actual refrigerant pressure and the target refrigerant pressure, transfer at least part of the energy generated by the temperature control system to the energy recovery system, and the first operating result can be energy supply surplus. That is, in the embodiment of the present disclosure, at least part of the energy generated by the temperature control system can be transferred to the energy recovery system in the case of energy supply surplus of the temperature control system, thereby effectively alleviating the problem of energy supply surplus to ensure that the user feels stable and expected cooling or heating. In this process, the compressor is not frequently started and stopped, so compared with the prior art, the service life of the compressor can be improved, thereby reducing the maintenance cost of the air conditioning system.

[0059] In addition, it should be noted that in the embodiment of the present disclosure, the determination method of the current operating state of the temperature control system can include: in the case that the working mode of the air conditioning system is a cooling mode and the current speed of the compressor is less than or equal to a first speed threshold, the current operating state of the temperature control system is determined to be a small load cooling state; in the case that the working mode of the air conditioning system is a cooling mode and the current speed of the compressor is between the first speed threshold and a second speed threshold, the current operating state of the temperature control system is determined to be a regular load cooling state; in the case that the working mode of the air conditioning system is a cooling mode and the current speed of the compressor is greater than or equal to the second speed threshold, the current operating state of the temperature control system is determined to be a large load cooling state. The first speed threshold is less than the second speed threshold, and the first speed threshold and the second speed threshold can be set according to application requirements, which are not limited in the embodiment of the present disclosure.

[0060] In the embodiment of the present disclosure, the determination method of the current operating state of the temperature control system can also include: in the case that the working mode of the air conditioning system is a heating mode and the current speed of the compressor is less than or equal to a third speed threshold, the current operating state of the temperature control system is determined to be a small load heating state; in the case that the working mode of the air conditioning system is a heating mode and the current speed of the compressor is between the third speed threshold and a fourth speed threshold, the current operating state of the temperature control system is determined to be a regular load heating state; in the case that the working mode of the air conditioning system is a heating mode and the current speed of the compressor is greater than or equal to the fourth speed threshold, the current operating state of the temperature control system is determined to be a large load heating state. The third speed threshold is less than the fourth speed threshold, and the third speed threshold and the fourth speed threshold can be set according to application requirements, which are not limited in the embodiment of the present disclosure.

[0061] Further, please combine Figure 4 In the embodiments of the present disclosure, the temperature control system 410 connected with the controller (not shown) in the air conditioning system can specifically include: Figure 4

[0062] a compressor 411, a water cooling controller (WCC) 412, a condenser valve 413, a condenser 414 (also referred to as a chiller), a first evaporator valve 415, a first evaporator 416, a second evaporator valve 417, and a second evaporator 417.

[0063] Among them, the compressor 411, the WCC 412 and the condenser 414 can be arranged outside the target space, and the first evaporator 416 and the second evaporator 417 can be arranged in the target space; the condenser valve 413, the first evaporator valve 415 and the second evaporator valve 417 can be expansion valves. Here, the target space can be a physical space with refrigeration demand, for example, in the case of the air conditioning system being a vehicle-mounted air conditioning system of a target vehicle, the target space can be the vehicle interior space.

[0064] In addition, in the embodiments of the present disclosure, the exhaust end of the compressor 411 can be connected with the first end of the WCC 412 through a refrigerant pipeline; the second end of the WCC 412 can be connected with the first end of the condenser valve 413, the first end of the first evaporator valve 415, and the first end of the second evaporator valve 417 respectively through a refrigerant pipeline; the second end of the condenser valve 413 can be connected with the first end of the condenser 414 through a refrigerant pipeline; the second end of the condenser 414 can be connected with the suction end of the compressor 411 through a refrigerant pipeline; the second end of the first evaporator valve 415 can be connected with the first end of the first evaporator 416 through a refrigerant pipeline; the second end of the first evaporator 416 can be connected with the suction end of the compressor 411 through a refrigerant pipeline; the second end of the second evaporator valve 417 can be connected with the first end of the second evaporator 417 through a refrigerant pipeline; and the second end of the second evaporator 417 can be connected with the suction end of the compressor 411 through a refrigerant pipeline.

[0065] In the embodiments of the present disclosure, the energy recovery system 420 can include:

[0066] a first water pump 421 and an energy recovery device 422.

[0067] Among them, when the air conditioning system is a vehicle-mounted air conditioning system of a target vehicle, the energy recovery device 422 can be a storage battery of the target vehicle. Here, the storage battery can be a device battery for providing working power for electronic devices in the target vehicle, or a power battery for providing driving power for the target vehicle, and the embodiments of the present disclosure do not limit this.

[0068] ​In addition, in the embodiment of the present disclosure, the inlet end of the first water pump 421 can be connected with the condenser 414 through a water cooling pipeline, and the outlet end can be connected with the water cooling device (for example, a water cooling plate) of the energy recovery device 422 through a water cooling pipeline, and the water cooling device of the energy recovery device 422 can be connected with the condenser 414 through a water cooling pipeline to form a water cooling loop for the energy recovery device 422. Deionized water for transferring cold energy can be provided in the water cooling pipeline.

[0069] When the current operating state of the temperature control system 410 is a refrigeration state (for example, a small load refrigeration state, a conventional load refrigeration state, or a large load refrigeration state), the working principle can be as follows:

[0070] The condenser valve 413 is adjusted to a closed state, and the first evaporator valve 415 and the second evaporator valve 417 are adjusted to an open state; the compressor 411 sucks in low-temperature and low-pressure gaseous refrigerant from the suction end and compresses the gaseous refrigerant to output high-temperature and high-pressure gaseous refrigerant; the WCC 412 converts the high-temperature and high-pressure gaseous refrigerant into liquid refrigerant at a relatively low temperature but still at a high pressure, and outputs the liquid refrigerant to the first evaporator 416 and the second evaporator 417, so that the liquid refrigerant evaporates and absorbs heat in the first evaporator 416 and the second evaporator 417, thereby realizing the refrigeration function.

[0071] After the liquid refrigerant is evaporated, low-temperature and low-pressure gaseous refrigerant is obtained and re-sucked into the compressor 411 to realize the refrigeration cycle of the temperature control system 410.

[0072] The refrigerant can be tetrafluoroethane, tetrafluoropropene, or other refrigerants.

[0073] Further, in the embodiment of the present disclosure, when the small load operating state is a small load refrigeration state, and the first operating result is excess cold energy supply and unadjustable, the step S303 of “determining the operating result of the temperature control system as the first operating result based on the actual refrigerant pressure and the target refrigerant pressure” can include:

[0074] In the case that the actual refrigerant pressure is lower than the target refrigerant pressure, and the current rotating speed of the compressor is the minimum rotating speed, the operating result of the temperature control system is determined as the first operating result.

[0075] First of all, it should be noted that in the embodiment of the present disclosure, “unadjustable” can be understood as: the problem of excess cold energy supply cannot be solved by adjusting the rotating speed of the compressor. For example, the current rotating speed of the compressor is already the minimum rotating speed and cannot be further reduced, so the problem of excess cold energy supply cannot be alleviated by further reducing the current rotating speed of the compressor. The minimum rotating speed can be set according to application requirements, for example, it can be set to 20% to 30% of the rated rotating speed of the compressor, and the embodiment of the present disclosure does not limit this.

[0076] In addition, in the embodiments of the present disclosure, when the small load operation state is a small load refrigeration state, the first operation result is a surplus of cold energy supply, and the surplus of cold energy supply is not adjustable, the actual refrigerant pressure is the actual low-pressure refrigerant of the compressor, that is, the actual suction pressure, which can be collected by the first pressure sensor arranged at the suction end of the compressor; and the target refrigerant pressure is the target low-pressure refrigerant of the compressor, that is, the target suction pressure, which can be obtained based on the target air temperature by using the first calculation logic. The first calculation logic can be set according to application requirements, and the embodiments of the present disclosure do not limit this; the target air temperature can be the expected air temperature set by the user through the control panel of the air conditioning system, or can be obtained by converting the expected air temperature set by the user through the control panel of the air conditioning system.

[0077] That is, in the embodiments of the present disclosure, when the actual low-pressure refrigerant is lower than the target low-pressure refrigerant and the current rotating speed of the compressor is the minimum rotating speed, the operation result of the temperature control system can be directly determined as the first operation result, so as to improve the determination efficiency and accuracy of the first operation result.

[0078] Based on this, in the embodiments of the present disclosure, the “transferring at least part of the energy generated by the temperature control system to the energy recovery system” in step S303 can include:

[0079] generating a first valve opening instruction;

[0080] opening the condenser valve in the temperature control system according to the first valve opening instruction, so that at least part of the refrigerant output from the compressor enters the condenser in the temperature control system after sequentially passing through the WCC and the condenser valve in the temperature control system.

[0081] The condenser can be used to generate cold energy by using at least part of the refrigerant, and transfer the cold energy generated by using at least part of the refrigerant to the energy recovery system.

[0082] Specifically, in the embodiments of the present disclosure, after the compressor sucks in the low-temperature and low-pressure gaseous refrigerant from the suction end and compresses it to output high-temperature and high-pressure gaseous refrigerant, and the WCC converts the high-temperature and high-pressure gaseous refrigerant into liquid refrigerant with relatively low temperature but still high pressure, the flow direction of the liquid refrigerant includes three parts in total, wherein the first part is output to the condenser, the second part is output to the first evaporator, and the third part is output to the second evaporator.

[0083] For the first part of the liquid refrigerant: the condenser will utilize its heat exchange with other substances in the external environment (for example, air, etc.) and be converted into low-temperature and low-pressure gaseous refrigerant. In this process, the cooling capacity generated by the first part of the liquid refrigerant will be transferred to the energy recovery system, and specifically, this part of the cooling capacity will be transferred to the energy recovery device in the energy recovery system through the water cooling pipeline to cool the energy recovery device.

[0084] For the second part of the liquid refrigerant: the first evaporator will utilize its evaporation heat absorption to achieve refrigeration function.

[0085] For the third part of the liquid refrigerant: the second evaporator will utilize its evaporation heat absorption to achieve refrigeration function.

[0086] It can be understood that, in the embodiments of the present disclosure, since the condenser has a shunting effect on the liquid refrigerant, the total amount of the liquid refrigerant output to the first evaporator and the second evaporator will be reduced, which will reduce the cooling capacity generated by the first evaporator and the second evaporator, thereby solving the problem of excess cooling capacity supply and non-adjustable of the temperature control system, and further reducing the cooling capacity output to the target space to ensure that the user feels stable and expected cooling capacity, and without the need to add high-cost additional devices to the air conditioning system, thereby reducing the production cost of the air conditioning system.

[0087] In addition, it should be noted that, in the embodiments of the present disclosure, the first valve opening instruction can be generated in the following manner:

[0088] obtaining a first temperature value of the evaporator in the temperature control system;

[0089] obtaining a first valve opening degree parameter negatively correlated with the first temperature value;

[0090] generating a first valve opening instruction based on the first valve opening degree parameter.

[0091] The evaporator can include the first evaporator and the second evaporator.

[0092] Based on this, in the embodiments of the present disclosure, the first sum result can be obtained by weighted summing the temperature value of the first evaporator and the temperature value of the second evaporator as the first temperature value of the evaporator in the temperature control system. The temperature value of the first evaporator can be collected by the first temperature sensor arranged at the first evaporator, and the temperature value of the second evaporator can be collected by the second temperature sensor arranged at the second evaporator. When the temperature value of the first evaporator and the temperature value of the second evaporator are weighted and summed, the first weight value corresponding to the first evaporator and the second weight value corresponding to the second evaporator can be set according to application requirements, for example, the first weight value and the second weight value can both be set to 0.5, and the present disclosure does not limit this.

[0093] After obtaining the first temperature value of the evaporator in the temperature control system, a first valve opening degree parameter negatively correlated with the first temperature value can be obtained, and a first valve opening instruction can be generated based on the first valve opening degree parameter. The first valve opening degree parameter negatively correlated with the first temperature value can be understood as: the greater the first temperature value, the smaller the first valve opening degree parameter, and correspondingly, the smaller the first temperature value, the greater the first valve opening degree parameter. The first valve opening instruction can be instruction information carrying the first valve opening degree parameter.

[0094] In the embodiments of the present disclosure, the first temperature value of the evaporator in the temperature control system can be obtained, and the first valve opening degree parameter negatively correlated with the first temperature value can be obtained, and then the first valve opening instruction can be generated based on the first valve opening degree parameter. In this way, when the condenser valve in the temperature control system is opened according to the first valve opening instruction, a suitable opening degree can be given to the condenser valve to reasonably regulate the amount of refrigerant output from the compressor to the condenser. In this way, the problem of excess cold supply in the temperature control system and the problem of unadjustable cold supply can be solved, and too much cold can not be transferred to the energy recovery system.

[0095] In addition, in the embodiments of the present disclosure, when the small load operating state is a small load refrigeration state, the control method of the air conditioning system can further include:

[0096] In a case where the operating result of the temperature control system is determined to be the second operating result based on the actual refrigerant pressure and the target refrigerant pressure, the current speed of the compressor is increased so that the refrigerant output from the compressor enters the evaporator in the temperature control system after sequentially passing through the WCC and the evaporator valve in the temperature control system.

[0097] The second operating result can be insufficient cold supply.

[0098] Based on this, in the embodiments of the present disclosure, in a case where the actual refrigerant pressure is higher than the target refrigerant pressure, the operating result of the temperature control system can be determined to be the second operating result, and the current speed of the compressor can be increased so that the refrigerant output from the compressor enters the evaporator in the temperature control system after sequentially passing through the WCC and the evaporator valve in the temperature control system. The evaporator can be used to generate cold using the refrigerant and output the cold generated using the refrigerant to the target space, thereby increasing the cold output to the target space. The evaporator valve can include a first evaporator valve and a second evaporator valve, and the evaporator can include a first evaporator corresponding to the first evaporator valve and a second evaporator corresponding to the second evaporator valve.

[0099] In the embodiments of the present disclosure, when the small load operating state is a small load refrigeration state, the control method of the air conditioning system can further include:

[0100] If the operating result of the temperature control system is determined to be the third operating result based on the actual refrigerant pressure and the target refrigerant pressure, the current speed of the compressor is reduced so that the refrigerant output from the compressor enters the evaporator of the temperature control system after passing through the WCC and evaporator valves in sequence.

[0101] The third operating result shows that the cooling capacity supply is excessive and adjustable.

[0102] The term "adjustable" can be understood as: the ability to resolve the problem of excessive cooling capacity by adjusting the compressor speed. For example, if the compressor's current speed has not yet reached its minimum speed, the problem of excessive cooling capacity can be alleviated by further reducing the compressor's current speed.

[0103] Based on this, in this embodiment, when the actual refrigerant pressure is lower than the target refrigerant pressure and the current compressor speed is not the minimum speed, the operating result of the temperature control system can be determined as the third operating result, and the current compressor speed can be reduced. This allows the refrigerant output from the compressor to enter the evaporator in the temperature control system after passing through the WCC and evaporator valves in sequence. The evaporator can then be used to generate cooling capacity using the refrigerant and output the generated cooling capacity to the target space, thereby reducing the amount of cooling capacity output to the target space. The evaporator valve can include a first evaporator valve and a second evaporator valve, and the evaporator can include a first evaporator corresponding to the first evaporator valve and a second evaporator corresponding to the second evaporator valve.

[0104] In this embodiment, based on the actual refrigerant pressure and the target refrigerant pressure, if the operating result of the temperature control system is determined to be a second operating result, the current speed of the compressor can be increased so that the refrigerant output from the compressor enters the evaporator of the temperature control system after passing through the WCC and evaporator valves in sequence. Alternatively, if the operating result of the temperature control system is determined to be a third operating result based on the actual refrigerant pressure and the target refrigerant pressure, the current speed of the compressor can be decreased so that the refrigerant output from the compressor enters the evaporator of the temperature control system after passing through the WCC and evaporator valves in sequence. In other words, in this embodiment, when the operating result of the temperature control system is a second or third operating result, the compressor speed can be easily adjusted to ensure that a reasonable amount of cooling is provided to the target space, thereby reducing the control difficulty of the temperature control system.

[0105] Please combine Figure 5 In this embodiment of the disclosure, in the air conditioning system, the controller ( Figure 5 The temperature control system 510 (not shown in the image) may also specifically include:

[0106] The compressor 5101, the WCC 5102, the condenser valve 5103, the condenser 5104, the first evaporator valve 5105, the first evaporator 5106, the second evaporator valve 5107, the second evaporator 5108, the second water pump 5109, the first heating core 5110, the three-way valve 5111, and the second heating core 5112.

[0107] The compressor 5101, the WCC 5102, and the condenser 5104 can be arranged outside the target space, and the first evaporator 5106, the second evaporator 5108, the first heating core 5110, and the second heating core 5112 can be arranged in the target space. The condenser valve 5103, the first evaporator valve 5105, and the second evaporator valve 5107 can be expansion valves. Here, the target space can be a physical space that needs to be heated, for example, in the case of an air conditioning system being a vehicle-mounted air conditioning system of a target vehicle, the target space can be the space inside the vehicle.

[0108] In addition, in the embodiment of the present disclosure, the exhaust end of the compressor 5101 can be connected to the first end of the WCC 5102 through a refrigerant pipeline; the second end of the WCC 5102 can be connected to the first end of the condenser valve 5103, the first end of the first evaporator valve 5105, and the first end of the second evaporator valve 5107 through refrigerant pipelines respectively; the second end of the condenser valve 5103 can be connected to the first end of the condenser 5104 through a refrigerant pipeline; the second end of the condenser 5104 can be connected to the suction end of the compressor 5101 through a refrigerant pipeline; the second end of the first evaporator valve 5105 can be connected to the first end of the first evaporator 5106 through a refrigerant pipeline; the second end of the first evaporator 5106 can be connected to the suction end of the compressor 5101 through a refrigerant pipeline; the second end of the second evaporator valve 5107 can be connected to the first end of the second evaporator 5108 through a refrigerant pipeline; and the second end of the second evaporator 5108 can be connected to the suction end of the compressor 5101 through a refrigerant pipeline.

[0109] The inlet end of the second water pump 5109 can be connected with the WCC 5102 through a water cooling pipeline, and the outlet end thereof can be connected with the first end of the first heating core 5110 and the first end of the three-way valve 5111 through water cooling pipelines respectively; the second end of the first heating core 5110 can be connected with the WCC 5102 through a water cooling pipeline to form a first heating loop for the target space; the second end of the three-way valve 5111 can be connected with the first end of the second heating core 5112 through a water cooling pipeline; the second end of the second heating core 5112 can be connected with the WCC 5102 through a water cooling pipeline to form a second heating loop for the target space; the third end of the three-way valve 5111 can be connected with the inlet end of the first water pump 521 of the energy recovery system 520 through a water cooling pipeline; the outlet end of the first water pump 521 can be connected with the water cooling device of the energy recovery device 522 through a water cooling pipeline, and meanwhile, the water cooling device of the energy recovery device 522 can be connected with the WCC 5102 through a water cooling pipeline to form a water cooling loop for the energy recovery device 522. Deionized water for transferring heat can be arranged in the water cooling pipeline; when the air conditioning system is a vehicle-mounted air conditioning system of a target vehicle, the energy recovery device 522 can be a storage battery of the target vehicle. Here, the storage battery can be a device battery for providing working electric energy for electronic devices in the target vehicle, or a power battery for providing driving power for the target vehicle, and the embodiments of the present disclosure do not limit this.

[0110] When the current operating state of the temperature control system 510 is a heating state (for example, a small-load heating state, a regular-load heating state or a large-load heating state), the working principle thereof can be as follows:

[0111] The condenser valve 5103 is adjusted to an open state, the first evaporator valve 5105 and the second evaporator valve 5107 are adjusted to a closed state, meanwhile, the first end and the second end of the three-way valve 5111 are adjusted to an open state, and the third end of the three-way valve 5111 is adjusted to a closed state; the compressor 5101 sucks in low-temperature and low-pressure gaseous refrigerant from the suction end and compresses the same to output high-temperature and high-pressure gaseous refrigerant; the WCC 5102 converts the high-temperature and high-pressure gaseous refrigerant into liquid refrigerant of relatively low temperature but still high pressure, and in this process, heat is generated and transferred to the first heating core 5110 and the second heating core 5112 through the water cooling pipeline, thereby realizing the heating function.

[0112] After that, the liquid refrigerant in the WCC 5102 is output to the condenser 5104 to be converted into low-temperature and low-pressure gaseous refrigerant in the condenser 5104, and is re-sucked into the compressor 5101 to realize the heating cycle of the temperature control system 510.

[0113] The refrigerant can be tetrafluoroethane, tetrafluoropropene or other refrigerants.

[0114] Further, in the embodiment of the present disclosure, when the small-load operation state is the small-load heating state, the first operation result is heat supply surplus, and the heat supply surplus is unadjustable, the step S303 of "determining the operation result of the temperature control system as the first operation result based on the actual refrigerant pressure and the target refrigerant pressure" can include:

[0115] In the case that the actual refrigerant pressure is higher than the target refrigerant pressure and the current rotating speed of the compressor is the minimum rotating speed, the operation result of the temperature control system is determined as the first operation result.

[0116] First of all, it should be noted that in the embodiment of the present disclosure, "unadjustable" can be understood as: the problem of heat supply surplus cannot be solved by adjusting the rotating speed of the compressor. For example, the current rotating speed of the compressor is already the minimum rotating speed and cannot be further reduced, so the problem of heat supply surplus cannot be alleviated by further reducing the current rotating speed of the compressor. The minimum rotating speed can be set according to application requirements, for example, it can be set to 20% to 30% of the rated rotating speed of the compressor, and the embodiment of the present disclosure does not limit this.

[0117] In addition, in the embodiment of the present disclosure, when the small-load operation state is the small-load heating state, the first operation result is heat supply surplus, and the heat supply surplus is unadjustable, the actual refrigerant pressure is the actual refrigerant high pressure of the compressor, that is, the actual exhaust pressure, which can be collected by the second pressure sensor arranged at the exhaust end of the compressor; the target refrigerant pressure is the target refrigerant high pressure of the compressor, that is, the target exhaust pressure, which can be obtained based on the target air temperature by using the second calculation logic. Here, the second calculation logic can be set according to application requirements, and the embodiment of the present disclosure does not limit this; the target air temperature can be the expected air temperature set by the user through the control panel of the air conditioning system, or can be obtained by converting the expected air temperature set by the user through the control panel of the air conditioning system.

[0118] That is, in the embodiment of the present disclosure, the operation result of the temperature control system can be determined as the first operation result in the case that the actual refrigerant high pressure is higher than the target refrigerant high pressure and the current rotating speed of the compressor is the minimum rotating speed, thereby improving the determination efficiency and accuracy of the first operation result.

[0119] Based on this, in the embodiment of the present disclosure, the step S303 of "transferring at least part of the energy generated by the temperature control system to the energy recovery system" can include:

[0120] generating a second valve opening instruction;

[0121] opening the heat dissipation valve in the temperature control system according to the second valve opening instruction, so that at least part of the heat generated when the refrigerant output from the compressor passes through the WCC in the temperature control system can pass through the heat dissipation valve and be transferred to the energy recovery system.

[0122] The heat release valve can be a three-way valve.

[0123] Based on this, in the embodiments of the present disclosure, the third end of the three-way valve can be opened according to the second valve opening instruction, so that at least part of the heat generated when the refrigerant output from the compressor passes through the WCC in the temperature control system can be transferred to the energy recovery system through the three-way valve.

[0124] Specifically, in the process of the compressor sucking in low-temperature and low-pressure gaseous refrigerant at the suction end, compressing the gaseous refrigerant, outputting high-temperature and high-pressure gaseous refrigerant, and converting the high-temperature and high-pressure gaseous refrigerant into liquid refrigerant with relatively low temperature but still high pressure by using the WCC, heat will be generated. This part of the heat will be divided into three parts, wherein the first part is output to the first heating core, the second part is output to the second heating core through the second end of the three-way valve, and the third part is transferred to the energy recovery system through the third end of the three-way valve, that is, to the energy recovery device in the energy recovery system, for warming up the energy recovery device. In this process, due to the shunting effect of the third end of the three-way valve on the heat, the heat output to the first heating core and the second heating core will be reduced, thereby solving the problem of excess cold supply in the temperature control system and the problem of unadjustable temperature control, and further reducing the heat output to the target space to ensure that the heat felt by the user is stable and meets the expected requirements, and without the need to add additional high-cost devices to the air conditioning system, thereby reducing the production cost of the air conditioning system.

[0125] In addition, it should be noted that in the embodiments of the present disclosure, the second valve opening instruction can be generated in the following way:

[0126] Obtaining a second temperature value of the heating core in the temperature control system;

[0127] Obtaining a second valve opening degree parameter positively correlated with the second temperature value;

[0128] Generating a second valve opening instruction based on the second valve opening degree parameter.

[0129] Based on this, in the embodiments of the present disclosure, the second sum result can be obtained by weighted summing the temperature value of the first heating core and the temperature value of the second heating core, as the second temperature value of the heating core in the temperature control system. The temperature value of the first heating core can be collected by the third temperature sensor arranged on the first heating core; the temperature value of the second heating core can be collected by the third temperature sensor arranged on the second heating core; when the temperature value of the first heating core and the temperature value of the second heating core are weighted and summed, the third weight value corresponding to the first heating core and the fourth weight value corresponding to the second heating core can be set according to application requirements, for example, the third weight value and the fourth weight value can both be set to 0.5, and the present disclosure does not limit this.

[0130] After the second temperature value of the heating core in the temperature control system is acquired, a second valve opening degree parameter positively correlated with the second temperature value can be acquired, and a second valve opening instruction can be generated based on the second valve opening degree parameter. The second valve opening degree parameter is positively correlated with the second temperature value can be understood as: the greater the second temperature value, the greater the second valve opening degree parameter, and correspondingly, the smaller the second temperature value, the smaller the second valve opening degree parameter; and the second valve opening instruction can be instruction information carrying the second valve opening degree parameter.

[0131] In the above manner, in the embodiment of the present disclosure, the second temperature value of the heating core in the temperature control system can be acquired, and the second valve opening degree parameter negatively correlated with the second temperature value can be acquired, and the second valve opening instruction can be generated based on the second valve opening degree parameter. In this way, when the heat relief valve in the temperature control system is opened according to the second valve opening instruction, a suitable opening degree of the heat relief valve can be given to reasonably transfer the heat from the third end of the three-way valve to the energy recovery system, so that the problem of excessive heat supply of the temperature control system and the problem of unadjustable heat supply can be solved, and too much heat is not transferred to the energy recovery system.

[0132] In addition, in the embodiment of the present disclosure, when the small load operating state is the small load heating state, the control method of the air conditioning system can further include:

[0133] In a case where the operating result of the temperature control system is determined to be the fourth operating result based on the actual refrigerant pressure and the target refrigerant pressure, the current speed of the compressor is increased, so that the heat generated when the refrigerant output from the compressor passes through the WCC in the temperature control system enters the heating core in the temperature control system, and the heat is output to the target space through the heating core.

[0134] The fourth operating result is insufficient heat supply.

[0135] Based on this, in the embodiment of the present disclosure, in a case where the actual refrigerant pressure is lower than the target refrigerant pressure, the operating result of the temperature control system can be determined to be the fourth operating result, and the current speed of the compressor is increased, so that the heat generated when the refrigerant output from the compressor passes through the WCC in the temperature control system enters the heating core in the temperature control system, and the heat is output to the target space through the heating core, thereby increasing the heat output to the target space. The heating core can include a first heating core and a second heating core.

[0136] In the embodiment of the present disclosure, when the small load operating state is the small load heating state, the control method of the air conditioning system can further include:

[0137] In a case where the operation result of the temperature control system is determined as the fifth operation result based on the actual refrigerant pressure and the target refrigerant pressure, the current rotating speed of the compressor is reduced, so that the heat generated by the refrigerant output from the compressor when passing through the WCC in the temperature control system enters the warm core in the temperature control system, and the heat is output to the target space through the warm core.

[0138] The fifth operation result is heat supply surplus and adjustable.

[0139] The "adjustable" can be understood as: the problem of heat supply surplus can be solved by adjusting the rotating speed of the compressor. For example, the current rotating speed of the compressor has not reached the minimum rotating speed, and therefore can continue to be reduced, so that the problem of heat supply surplus can be alleviated by continuously reducing the current rotating speed of the compressor.

[0140] Based on this, in the embodiments of the present disclosure, in a case where the actual refrigerant pressure is higher than the target refrigerant pressure and the current rotating speed of the compressor is not the minimum rotating speed, the operation result of the temperature control system can be determined as the fifth operation result, and the current rotating speed of the compressor is reduced, so that the heat generated by the refrigerant output from the compressor when passing through the WCC in the temperature control system enters the warm core in the temperature control system, and the heat is output to the target space through the warm core, thereby reducing the heat output to the target space. The warm core can include a first warm core and a second warm core.

[0141] In the above manner, in the embodiments of the present disclosure, in a case where the operation result of the temperature control system is determined as the fourth operation result based on the actual refrigerant pressure and the target refrigerant pressure, the current rotating speed of the compressor is increased, so that the heat generated by the refrigerant output from the compressor when passing through the WCC in the temperature control system enters the warm core in the temperature control system, and the heat is output to the target space through the warm core. In a case where the operation result of the temperature control system is determined as the fifth operation result based on the actual refrigerant pressure and the target refrigerant pressure, the current rotating speed of the compressor is reduced, so that the heat generated by the refrigerant output from the compressor when passing through the WCC in the temperature control system enters the warm core in the temperature control system, and the heat is output to the target space through the warm core. That is, in the embodiments of the present disclosure, when the operation result of the temperature control system is the fourth operation result or the fifth operation result, the reasonable heat provided to the target space can be ensured by simply adjusting the rotating speed of the compressor, thereby reducing the control difficulty of the temperature control system.

[0142] As described above, for the current air conditioning system, when it is in a large load heating state, the refrigerant in the compressor can also migrate from the suction end to the evaporator and condense. In this regard, please refer to Figure 6 The control method of the air conditioning system provided by the embodiments of the present disclosure can further include:

[0143] Step S601, in the case that the current operating state is the heavy load heating state and it is determined that the temperature control system has the refrigerant migration phenomenon, a third valve opening instruction is generated.

[0144] The refrigerant migration phenomenon can be a phenomenon that refrigerant in the compressor migrates from the suction end of the compressor to the evaporator in the temperature control system.

[0145] Step S602, according to the third valve opening instruction, the evaporator valve in the temperature control system is opened to make the refrigerant flow back to the compressor from the evaporator.

[0146] In combination with Figure 7 In the embodiments of the present disclosure, in the case that the current operating state is the heavy load heating state (i.e., the heavy load heating state achieved by using the compressor 710, the WCC 720, the condenser valve 730 and the condenser 740 in the temperature control system 700) and it is determined that the temperature control system 700 has the refrigerant migration phenomenon, a third valve opening instruction is generated, and according to the third valve opening instruction, the evaporator valve in the temperature control system 700 is opened. Specifically, the first evaporator valve 760 corresponding to the first evaporator 750 and the second evaporator valve 780 corresponding to the second evaporator 770 in the temperature control system 700 can be opened. After the first evaporator valve 760 is opened, the "near vacuum state" on the side of the first evaporator 750 close to the first evaporator valve 760 can be broken, so that the refrigerant migrated into the first evaporator 750 can flow back to the compressor 710 smoothly; after the second evaporator valve 780 is opened, the "near vacuum state" on the side of the second evaporator 770 close to the second evaporator valve 780 can be broken, so that the refrigerant migrated into the second evaporator 770 can flow back to the compressor 710 smoothly.

[0147] That is to say, in the embodiments of the present disclosure, for the refrigerant migration phenomenon existing in the temperature control system, only the evaporator valve in the temperature control system needs to be opened simply, so that the refrigerant can flow back to the compressor from the evaporator, without the need to add high-cost additional devices to the air conditioning system, thereby reducing the production cost of the air conditioning system.

[0148] Further, in some optional embodiments, the temperature control system can be determined to have the refrigerant migration phenomenon by the following method:

[0149] In the case that the actual refrigerant high pressure of the compressor has an increase rate less than or equal to an increase rate threshold value, and / or the continuously increasing value of the superheat parameter of the compressor is greater than or equal to a temperature threshold value, it is determined that the temperature control system has the refrigerant migration phenomenon.

[0150] That is, in the embodiment of the present disclosure, the refrigerant migration phenomenon of the temperature control system can be determined in the case that the actual refrigerant high pressure of the compressor has an increase rate less than or equal to the increase rate threshold value, and / or the continuous increase value of the superheat parameter of the compressor is greater than or equal to the temperature threshold value, thereby improving the determination efficiency and accuracy of the refrigerant migration phenomenon.

[0151] In addition, it should be noted that in the embodiment of the present disclosure, the actual refrigerant high pressure of the compressor has an increase rate less than or equal to the increase rate threshold value can be understood as: the actual refrigerant high pressure of the compressor has an increase rate less than or equal to the increase rate threshold value within a first preset time period. The first preset time period can be set according to application requirements, and the present disclosure does not limit this; the increase rate threshold value can be set according to application requirements, for example, it can be set to a very small value, that is, when it is determined that the actual refrigerant high pressure of the compressor has an increase rate less than or equal to the increase rate threshold value, it means that the actual refrigerant high pressure of the compressor has already been in a state of not continuing to rise.

[0152] It should be further noted that in the embodiment of the present disclosure, the continuous increase value of the superheat parameter of the compressor is greater than or equal to the temperature threshold value can be understood as: the continuous increase value of the superheat parameter of the compressor is greater than or equal to the temperature threshold value within a second preset time period. The second preset time period can be equal to the first preset time period; the superheat parameter can be used to represent the suction superheat of the compressor, which can be collected by the fifth temperature sensor arranged at the suction end of the compressor; the temperature threshold value can be set according to application requirements, for example, it can be set to 10°C, that is, when the continuous increase value of the superheat parameter of the compressor is greater than or equal to the temperature threshold value, it means that the continuous increase value of the superheat parameter of the compressor has been too high.

[0153] In the above manner, in the embodiment of the present disclosure, the refrigerant migration phenomenon of the temperature control system can be determined in the case that the actual refrigerant high pressure of the compressor has an increase rate less than or equal to the increase rate threshold value, and / or the continuous increase value of the superheat parameter of the compressor is greater than or equal to the temperature threshold value, thereby improving the determination efficiency and accuracy of the refrigerant migration phenomenon.

[0154] In addition, it should be noted that in the embodiment of the present disclosure, the third valve opening instruction can be generated in the following manner:

[0155] Obtaining a reference time period based on the first continuous time period in which the increase rate is less than or equal to the increase rate threshold value, and the second continuous time period in which the continuous increase value is greater than or equal to the temperature threshold value;

[0156] Obtaining a third valve opening parameter positively correlated with the reference time period;

[0157] generate a third valve opening instruction based on the third valve opening parameter.

[0158] In an example, a difference between the current time and a first time can be obtained as the first duration, and the first time can be a time at which the rising rate is determined to be less than or equal to the rising rate threshold, and a difference between the current time and a second time can be obtained as the second duration, and the second time can be a time at which the continuously increasing value is determined to be greater than or equal to the temperature threshold. Thereafter, a third summation result can be obtained by weighted summation of the first duration and the second duration as the reference duration. Wherein, the fifth weight value corresponding to the first duration and the sixth weight value corresponding to the second duration can be set according to application requirements when the first duration and the second duration are weighted and summed, for example, the fifth weight value and the sixth weight value can be set to 0.5, and the embodiments of the present disclosure do not limit this.

[0159] After obtaining the reference duration, a third valve opening parameter positively correlated with the reference duration can be obtained. Wherein, the third valve opening parameter positively correlated with the reference duration can be understood as: the greater the reference duration, the greater the third valve opening parameter, and correspondingly, the smaller the reference duration, the smaller the second valve opening parameter.

[0160] After obtaining the third valve opening parameter, a third valve opening instruction can be generated based on the third valve opening parameter.

[0161] For this, in an example, instruction information carrying the third valve opening parameter can be generated as the third valve opening instruction. In this way, when the evaporator valve in the temperature control system is opened according to the third valve opening instruction, the first evaporator valve in the temperature control system can be opened according to the third valve opening parameter, and the second evaporator valve in the temperature control system can be opened according to the third valve opening parameter.

[0162] For this, in another example, a difference between the third valve opening parameter and a reference opening parameter can be calculated as a first available valve opening, and a sum of the third valve opening parameter and the reference opening parameter can be calculated as a second available valve opening, and instruction information carrying the first available valve opening and the second available valve opening can be generated as the third valve opening instruction. In this way, when the evaporator valve in the temperature control system is opened according to the third valve opening instruction, the first evaporator valve in the temperature control system can be opened according to the first available valve opening, and the second evaporator valve in the temperature control system can be opened according to the second available valve opening. Wherein, the reference opening parameter can be set according to application requirements, and the embodiments of the present disclosure do not limit this.

[0163] The first evaporator valve corresponds to the first evaporator, the second evaporator valve corresponds to the second evaporator, and the second evaporator is farther away from the compressor than the first evaporator, that is, the first evaporator is the front evaporator of the temperature control system, and the second evaporator is the rear evaporator of the temperature control system.

[0164] In the above manner, in the embodiment of the present disclosure, the reference duration can be obtained based on the first duration in which the rising rate is less than or equal to the rising rate threshold value and the second duration in which the continuously increasing value is greater than or equal to the temperature threshold value, the third valve opening parameter positively correlated with the reference duration is obtained, and the third valve opening instruction is generated based on the third valve opening parameter. In this way, when the evaporator valve in the temperature control system is opened according to the third valve opening instruction, a suitable opening degree of the evaporator valve can be given, so that the problem of refrigerant migration can be solved, and the normal operation of the temperature control system is not affected.

[0165] In the following, the control method of the air conditioning system provided by the embodiment of the present disclosure will be described in combination with Figure 8 The control method of the air conditioning system provided by the embodiment of the present disclosure will be described in combination with Figure 8 The air conditioning system shown in Figure 4 , Figure 5 and Figure 7 is an integration of the air conditioning systems shown in Figure 8 Therefore, for the air conditioning system shown in

[0166] In the following, the control method of the air conditioning system provided by the embodiment of the present disclosure will be described in three parts.

[0167] I. The current running state of the temperature control system is a small load refrigeration state.

[0168] Please refer to Figure 9 Firstly, the target refrigerant low pressure of the compressor can be obtained based on the target air temperature by using the first calculation logic, and the compressor can be controlled by a proportional, integral, and derivative (PID) adjustment mode based on the target refrigerant low pressure to adjust the current rotating speed of the compressor and obtain an actual refrigerant low pressure of the compressor.

[0169] Thereafter, there are

[0170] (1) In the case that the actual refrigerant low pressure is higher than the target refrigerant low pressure, the operation result of the temperature control system is determined as a second operation result, and the current rotation speed of the compressor is increased, so that the refrigerant output from the compressor enters the evaporator in the temperature control system after sequentially passing through the WCC and the evaporator valve in the temperature control system, and the evaporator is used to generate cold energy by using the refrigerant and output the cold energy generated by using the refrigerant to the target space, thereby increasing the cold energy output to the target space.

[0171] wherein, the second operation result can be insufficient cold energy supply; the evaporator valve can include a first evaporator valve and a second evaporator valve, and the evaporator can include a first evaporator corresponding to the first evaporator valve and a second evaporator corresponding to the second evaporator valve.

[0172] (2) In the case that the actual refrigerant low pressure is lower than the target refrigerant low pressure, and the current rotation speed of the compressor is not the lowest rotation speed, the operation result of the temperature control system is determined as a third operation result, and the current rotation speed of the compressor is reduced, so that the refrigerant output from the compressor enters the evaporator in the temperature control system after sequentially passing through the WCC and the evaporator valve in the temperature control system, and the evaporator is used to generate cold energy by using the refrigerant and output the cold energy generated by using the refrigerant to the target space, thereby reducing the cold energy output to the target space.

[0173] wherein, the third operation result is excess cold energy supply and adjustable; the evaporator valve can include a first evaporator valve and a second evaporator valve, and the evaporator can include a first evaporator corresponding to the first evaporator valve and a second evaporator corresponding to the second evaporator valve.

[0174] (3) In the case that the actual refrigerant low pressure is lower than the target refrigerant low pressure, and the current rotation speed of the compressor is the lowest rotation speed, the operation result of the temperature control system is determined as the first operation result I, and a first valve opening instruction is generated to open the condenser valve in the temperature control system according to the first valve opening instruction, so that at least part of the refrigerant output from the compressor enters the condenser in the temperature control system after sequentially passing through the WCC and the condenser valve in the temperature control system, and the condenser is used to generate cold energy by using at least part of the refrigerant and transfer the cold energy generated by using at least part of the refrigerant to the energy recovery system.

[0175] wherein, the first operation result I can be excess cold energy supply and non-adjustable.

[0176] II. The current operation state of the temperature control system is a small load heating state.

[0177] Please combine Figure 10, first, the second logic can be used to obtain the target refrigerant high pressure of the compressor based on the target air temperature, and the compressor is controlled by PID adjustment based on the target refrigerant high pressure to adjust the current speed of the compressor, and an actual refrigerant high pressure of the compressor is obtained.

[0178] Thereafter, there are:

[0179] (1) In the case where the actual refrigerant high pressure is lower than the target refrigerant high pressure, the running result of the temperature control system is determined as the fourth running result, and the current speed of the compressor is increased so that the heat generated when the refrigerant output from the compressor passes through the WCC in the temperature control system enters the warm core in the temperature control system and is output to the target space through the warm core, thereby increasing the heat output to the target space.

[0180] Among them, the fourth running result can be heat supply deficiency; the warm core can include a first warm core and a second warm core.

[0181] (2) In the case where the actual refrigerant high pressure is higher than the target refrigerant high pressure, and the current speed of the compressor is not the lowest speed, the running result of the temperature control system is determined as the fifth running result, and the current speed of the compressor is reduced so that the heat generated when the refrigerant output from the compressor passes through the WCC in the temperature control system enters the warm core in the temperature control system and is output to the target space through the warm core, thereby reducing the heat output to the target space.

[0182] Among them, the fifth running result can be heat supply excess and adjustable; the warm core can include a first warm core and a second warm core.

[0183] (3) In the case where the actual refrigerant high pressure is higher than the target refrigerant high pressure, and the current speed of the compressor is the lowest speed, the running result of the temperature control system is determined as the first running result II, and the second valve opening instruction is generated, and the heat dissipation valve in the temperature control system is opened according to the second valve opening instruction, so that at least part of the heat generated when the refrigerant output from the compressor passes through the WCC in the temperature control system can be transferred to the energy recovery system through the heat dissipation valve.

[0184] Among them, the first running result II can be heat supply excess and non-adjustable; the heat dissipation valve can be a three-way valve, specifically a third end of the three-way valve.

[0185] III. The current running state of the temperature control system is a large load heating state.

[0186] Please combine Figure 11 , first, the second logic can be used to obtain the target refrigerant high pressure of the compressor based on the target air temperature, and the compressor is controlled by PID adjustment based on the target refrigerant high pressure to adjust the current speed of the compressor, and an actual refrigerant high pressure of the compressor is obtained.

[0187] After that, in the case that the rising rate of the actual refrigerant high pressure of the compressor is less than or equal to the rising rate threshold value, and the sustained increase value of the superheat parameter of the compressor is greater than or equal to the temperature threshold value, it is determined that the refrigerant migration phenomenon exists in the temperature control system, and a third valve opening instruction is generated, and then the evaporator valve in the temperature control system is opened according to the third valve opening instruction, so as to make the refrigerant flow back from the evaporator to the compressor.

[0188] The "rising rate of the actual refrigerant high pressure of the compressor is less than or equal to the rising rate threshold value" can be understood as: the rising rate of the actual refrigerant high pressure of the compressor is less than or equal to the rising rate threshold value within a first preset time length. Here, the first preset time length can be set according to application requirements, and the present disclosure does not limit this; the rising rate threshold value can be set according to application requirements, for example, it can be set as a very small value, that is, when it is determined that the rising rate of the actual refrigerant high pressure of the compressor is less than or equal to the rising rate threshold value, it means that the actual refrigerant high pressure of the compressor has been in a state of not continuing to rise.

[0189] The "sustained increase value of the superheat parameter of the compressor is greater than or equal to the temperature threshold value" can be understood as: the sustained increase value of the superheat parameter of the compressor is greater than or equal to the temperature threshold value within a second preset time length. Here, the second preset time length can be equal to the first preset time length; the superheat parameter can be used to represent the suction superheat of the compressor, which can be collected by the fifth temperature sensor arranged at the suction end of the compressor; the temperature threshold value can be set according to application requirements, for example, it can be set as 10℃, that is, when the sustained increase value of the superheat parameter of the compressor is greater than or equal to the temperature threshold value, it means that the superheat parameter of the compressor has been continuously increased too high.

[0190] In addition, in the present disclosure, the evaporator valve can include a first evaporator valve and a second evaporator valve, and the evaporator can include a first evaporator corresponding to the first evaporator valve, and a second evaporator corresponding to the second evaporator valve.

[0191] Please combine Figure 12In summary, in the embodiments of the present disclosure, the heat management parameters can be acquired, and based on the heat management parameters (for example, the target refrigerant low pressure and the actual refrigerant low pressure), the condenser valve is controlled, and then the flow direction of the refrigerant in the temperature control system is controlled, and based on the heat management parameters (for example, the target refrigerant high pressure and the actual refrigerant high pressure), the heat dissipation valve (that is, the three-way valve) is controlled, and then the distribution of the heat generated by the temperature control system is controlled, so as to effectively alleviate the problem of energy supply surplus of the temperature control system; based on the heat management parameters (for example, the target refrigerant low pressure, the actual refrigerant low pressure, the target refrigerant high pressure and the actual refrigerant high pressure), the compressor rotating speed is controlled, so as to realize the adjustment (the traditional adjustment mode) of the energy supply of the temperature control system; based on the heat management parameters (for example, the target refrigerant high pressure, the actual refrigerant high pressure and the superheat parameter), when it is determined that the temperature control system exists the refrigerant migration phenomenon, the evaporator valve in the temperature control system is opened, so as to make the refrigerant flow back to the compressor from the evaporator.

[0192] In summary, the control method of the air conditioning system provided by the embodiments of the present disclosure not only avoids frequently starting and stopping the compressor, thereby prolonging the service life of the compressor, but also enables the refrigerant to flow back to the compressor from the evaporator in the temperature control system simply by opening the evaporator valve in the temperature control system, without the need to add high-cost additional devices to the air conditioning system, thereby reducing the production cost of the air conditioning system.

[0193] Please refer to Figure 13 The application scenario diagram of the control method of the air conditioning system provided by the embodiments of the present disclosure. The control method of the air conditioning system is applied to a controller included in the air conditioning system. The controller is configured to:

[0194] determine the current running state of the temperature control system;

[0195] in a case where the current running state is a small load running state, determine the actual refrigerant pressure and the target refrigerant pressure of the compressor in the temperature control system based on the small load running state;

[0196] in a case where it is determined that the running result of the temperature control system is a first running result based on the actual refrigerant pressure and the target refrigerant pressure, transfer at least part of the energy generated by the temperature control system to the energy recovery system.

[0197] The first running result is energy supply surplus.

[0198] In addition, in the embodiments of the present disclosure, when the air conditioning system is a vehicle-mounted air conditioning system of a target vehicle, the energy recovery device can be a storage battery of the target vehicle.

[0199] It should be noted that, in the embodiments of the present disclosure, Figure 13 The application scenario diagram shown in the above is only illustrative but not restrictive, and those skilled in the art can determine the application scenario of the control method of the air conditioning system based on the above description. Figure 13Examples can make various obvious modifications and / or replacements, and the technical solutions obtained still belong to the disclosure range of the embodiments of the present disclosure.

[0200] In order to better implement the control method of the air conditioning system, the embodiments of the present disclosure further provide a control device of an air conditioning system, which can be applied to a controller included in the air conditioning system. Hereinafter, the control device of the air conditioning system 1400 provided by the embodiments of the present disclosure will be described with reference to the schematic structural block diagram shown in the figure. Figure 14 The control device of the air conditioning system 1400 provided by the embodiments of the present disclosure will be described with reference to the schematic structural block diagram shown in the figure.

[0201] The control device of the air conditioning system 1400 includes:

[0202] The state determination unit 1401 is configured to determine a current operating state of the temperature control system.

[0203] The pressure determination unit 1402 is configured to, in a case where the current operating state is a small-load operating state, determine an actual refrigerant pressure and a target refrigerant pressure of the compressor in the temperature control system based on the small-load operating state.

[0204] The energy transfer unit 1403 is configured to, in a case where it is determined that the operating result of the temperature control system is a first operating result based on the actual refrigerant pressure and the target refrigerant pressure, transfer at least part of the energy generated by the temperature control system to the energy recovery system; wherein the first operating result is an energy supply surplus.

[0205] In some optional embodiments, the small-load operating state is a small-load refrigeration state or a small-load heating state.

[0206] In some optional embodiments, the small-load operating state is a small-load refrigeration state, and the actual refrigerant pressure is used to represent an actual refrigerant low pressure of the compressor, and the target refrigerant pressure is used to represent a target refrigerant low pressure of the compressor; and the first operating result is a cooling capacity supply surplus and is not adjustable.

[0207] The energy transfer unit 1403 is configured to:

[0208] In a case where the actual refrigerant pressure is lower than the target refrigerant pressure, and the current rotating speed of the compressor is the lowest rotating speed, it is determined that the operating result of the temperature control system is the first operating result.

[0209] In some optional embodiments, the energy transfer unit 1403 is configured to:

[0210] Generate a first valve opening instruction;

[0211] According to the first valve opening instruction, a condenser valve in the temperature control system is opened, so that at least part of the refrigerant output from the compressor enters a condenser in the temperature control system after sequentially passing through a WCC and the condenser valve in the temperature control system; the condenser is configured to generate cold energy by using at least part of the refrigerant, and transfer the cold energy generated by using at least part of the refrigerant to the energy recovery system.

[0212] In some optional embodiments, the energy transfer unit 1403 is configured to:

[0213] obtain a first temperature value of an evaporator in the temperature control system;

[0214] obtain a first valve opening degree parameter negatively correlated with the first temperature value;

[0215] generate a first valve opening instruction based on the first valve opening degree parameter.

[0216] In some optional embodiments, the control device 1400 of the air conditioning system further comprises a first conventional control unit configured to:

[0217] In a case where it is determined, based on the actual refrigerant pressure and the target refrigerant pressure, that the operation result of the temperature control system is a second operation result, the current rotating speed of the compressor is increased, so that the refrigerant output from the compressor enters an evaporator in the temperature control system after sequentially passing through a WCC and an evaporator valve in the temperature control system; the second operation result is a cold energy supply deficiency; the evaporator is configured to generate cold energy by using the refrigerant, and output the cold energy generated by using the refrigerant to the target space.

[0218] Or, in a case where it is determined, based on the actual refrigerant pressure and the target refrigerant pressure, that the operation result of the temperature control system is a third operation result, the current rotating speed of the compressor is reduced, so that the refrigerant output from the compressor enters the evaporator in the temperature control system after sequentially passing through the WCC and the evaporator valve in the temperature control system; the third operation result is a cold energy supply excess and adjustable; the evaporator is configured to generate cold energy by using the refrigerant, and output the cold energy generated by using the refrigerant to the target space.

[0219] In some optional embodiments, the small load operation state is a small load heating state, and the actual refrigerant pressure is used to represent an actual refrigerant high pressure of the compressor, and the target refrigerant pressure is used to represent a target refrigerant high pressure of the compressor; the first operation result is a heat supply excess and non-adjustable.

[0220] The energy transfer unit 1403 is configured to:

[0221] In a case where the actual refrigerant pressure is higher than the target refrigerant pressure, and the current rotating speed of the compressor is the lowest rotating speed, it is determined that the operation result of the temperature control system is the first operation result.

[0222] In some optional embodiments, the energy transfer unit 1403 is configured to:

[0223] generate a second valve opening instruction;

[0224] open a heat release valve in the temperature control system according to the second valve opening instruction, so that at least part of the heat generated by the refrigerant output from the compressor when passing through the WCC in the temperature control system can be transferred to the energy recovery system through the heat release valve.

[0225] In some optional embodiments, the energy transfer unit 1403 is configured to:

[0226] obtain a second temperature value of the warm core in the temperature control system;

[0227] obtain a second valve opening degree parameter positively correlated with the second temperature value;

[0228] generate the second valve opening instruction based on the second valve opening degree parameter.

[0229] In some optional embodiments, the control device 1400 of the air conditioning system further comprises a second normal control unit configured to:

[0230] in a case where it is determined that the operation result of the temperature control system is a fourth operation result based on the actual refrigerant pressure and the target refrigerant pressure, increase the current speed of the compressor, so that the heat generated by the refrigerant output from the compressor when passing through the WCC in the temperature control system enters the warm core in the temperature control system and is output to the target space through the warm core; wherein the fourth operation result is heat supply deficiency;

[0231] or, in a case where it is determined that the operation result of the temperature control system is a fifth operation result based on the actual refrigerant pressure and the target refrigerant pressure, reduce the current speed of the compressor, so that the heat generated by the refrigerant output from the compressor when passing through the WCC in the temperature control system enters the warm core in the temperature control system and is output to the target space through the warm core; wherein the fifth operation result is heat supply excess and adjustable.

[0232] In some optional embodiments, the air conditioning system is a vehicle-mounted air conditioning system of a target vehicle; and the energy recovery system comprises a battery of the target vehicle.

[0233] In some optional embodiments, the control device 1400 of the air conditioning system further comprises a refrigerant backflow control unit configured to:

[0234] in a case where the current operation state is a large load heating state and it is determined that the temperature control system has a refrigerant migration phenomenon, generate a third valve opening instruction; wherein the refrigerant migration phenomenon is a phenomenon that the refrigerant in the compressor migrates from the suction end of the compressor to the evaporator in the temperature control system;

[0235] According to the third valve opening instruction, the evaporator valve in the temperature control system is opened to make the refrigerant flow back from the evaporator to the compressor.

[0236] In some optional embodiments, the refrigerant backflow control unit is configured to:

[0237] In a case where the actual refrigerant high pressure of the compressor has a rising rate less than or equal to a rising rate threshold value, and / or, the continuously increasing value of the superheat parameter of the compressor is greater than or equal to a temperature threshold value, it is determined that the temperature control system has a refrigerant migration phenomenon.

[0238] In some optional embodiments, the refrigerant backflow control unit is configured to:

[0239] According to a first continuous duration in which the rising rate is less than or equal to the rising rate threshold value, and a second continuous duration in which the continuously increasing value is greater than or equal to the temperature threshold value, a reference duration is obtained;

[0240] A third valve opening degree parameter is obtained, which is positively correlated with the reference duration;

[0241] According to the third valve opening degree parameter, a third valve opening instruction is generated.

[0242] In the embodiments of the present disclosure, the specific functions and examples of each unit in the control device 1400 of the air conditioning system can be referred to the related descriptions of the corresponding steps in the foregoing control method of the air conditioning system, and will not be repeated here.

[0243] Further, the embodiments of the present disclosure also provide an air conditioning system, as shown in Figure 2 The air conditioning system provided by the embodiments of the present disclosure can include a controller and a temperature control system connected with the controller. The controller can be configured to:

[0244] determine a current operating state of the temperature control system;

[0245] In a case where the current operating state is a small load operating state, according to the small load operating state, determine an actual refrigerant pressure and a target refrigerant pressure of the compressor in the temperature control system;

[0246] In a case where, according to the actual refrigerant pressure and the target refrigerant pressure, it is determined that the operating result of the temperature control system is a first operating result, transfer at least part of the energy generated by the temperature control system to an energy recovery system; wherein the first operating result is an energy supply surplus.

[0247] In some optional embodiments, the small load operating state is a small load refrigeration state or a small load heating state.

[0248] In some optional embodiments, the small load operating state is a small load refrigeration state, the actual refrigerant pressure is used to represent an actual refrigerant low pressure of the compressor, and the target refrigerant pressure is used to represent a target refrigerant low pressure of the compressor; and the first operating result is that the refrigeration capacity is excessive and cannot be adjusted.

[0249] The controller is specifically configured to:

[0250] In a case where the actual refrigerant pressure is lower than the target refrigerant pressure and the current rotating speed of the compressor is the lowest rotating speed, it is determined that the operating result of the temperature control system is the first operating result.

[0251] In some optional embodiments, the controller is specifically configured to:

[0252] generate the first valve opening instruction;

[0253] open the condenser valve in the temperature control system according to the first valve opening instruction, so that at least part of the refrigerant output from the compressor enters the condenser in the temperature control system after sequentially passing through the WCC and the condenser valve in the temperature control system; and the condenser is configured to generate refrigeration capacity by using the at least part of the refrigerant and transfer the refrigeration capacity generated by using the at least part of the refrigerant to the energy recovery system.

[0254] In some optional embodiments, the controller is specifically configured to:

[0255] obtain a first temperature value of the evaporator in the temperature control system;

[0256] obtain a first valve opening degree parameter negatively correlated with the first temperature value;

[0257] generate the first valve opening instruction based on the first valve opening degree parameter.

[0258] In some optional embodiments, the controller is further configured to:

[0259] In a case where the operating result of the temperature control system is determined to be the second operating result based on the actual refrigerant pressure and the target refrigerant pressure, the current rotating speed of the compressor is increased, so that the refrigerant output from the compressor enters the evaporator in the temperature control system after sequentially passing through the WCC and the evaporator valve in the temperature control system; and the second operating result is that the refrigeration capacity is insufficient; the evaporator is configured to generate refrigeration capacity by using the refrigerant and output the refrigeration capacity generated by using the refrigerant to the target space.

[0260] Or, in a case where the operation result of the temperature control system is determined to be a third operation result based on the actual refrigerant pressure and the target refrigerant pressure, the current rotation speed of the compressor is reduced, so that the refrigerant output from the compressor enters the evaporator in the temperature control system after sequentially passing through the WCC and the evaporator valve in the temperature control system; wherein the third operation result is that the cold energy supply is excessive and adjustable; the evaporator is configured to generate cold energy by using the refrigerant, and output the cold energy generated by using the refrigerant to the target space.

[0261] In some optional embodiments, the small load operation state is a small load heating state, and the actual refrigerant pressure is used to represent the actual refrigerant high pressure of the compressor, and the target refrigerant pressure is used to represent the target refrigerant high pressure of the compressor; the first operation result is that the heat supply is excessive and not adjustable.

[0262] The controller is specifically configured to:

[0263] In a case where the actual refrigerant pressure is higher than the target refrigerant pressure, and the current rotation speed of the compressor is the lowest rotation speed, the operation result of the temperature control system is determined to be the first operation result.

[0264] In some optional embodiments, the controller is specifically configured to:

[0265] Generate a second valve opening instruction;

[0266] According to the second valve opening instruction, the heat dissipation valve in the temperature control system is opened, so that at least part of the heat generated when the refrigerant output from the compressor passes through the WCC in the temperature control system can pass through the heat dissipation valve and be transferred to the energy recovery system.

[0267] In some optional embodiments, the controller is specifically configured to:

[0268] Obtain a second temperature value of the warm core in the temperature control system;

[0269] Obtain a second valve opening degree parameter positively correlated with the second temperature value;

[0270] Based on the second valve opening degree parameter, generate a second valve opening instruction.

[0271] In some optional embodiments, the controller is further configured to:

[0272] In a case where the operation result of the temperature control system is determined to be a fourth operation result based on the actual refrigerant pressure and the target refrigerant pressure, the current rotation speed of the compressor is increased, so that the heat generated when the refrigerant output from the compressor passes through the WCC in the temperature control system enters the warm core in the temperature control system, and the heat is output to the target space through the warm core; wherein the fourth operation result is that the heat supply is insufficient.

[0273] Or, in a case where it is determined that the operation result of the temperature control system is the fifth operation result based on the actual refrigerant pressure and the target refrigerant pressure, the current rotating speed of the compressor is reduced, so that the heat generated by the refrigerant output from the compressor when passing through the WCC in the temperature control system enters the warm core in the temperature control system and is output to the target space through the warm core; wherein the fifth operation result is that the heat supply is excessive and adjustable.

[0274] In some optional embodiments, the air conditioning system is a vehicle-mounted air conditioning system of the target vehicle; and the energy recovery system includes a storage battery of the target vehicle.

[0275] In some optional embodiments, the controller is further configured to:

[0276] In a case where the current operation state is the heavy load heating state and it is determined that the temperature control system has the refrigerant migration phenomenon, a third valve opening instruction is generated; wherein the refrigerant migration phenomenon is a phenomenon that the refrigerant in the compressor migrates from the suction end of the compressor to the evaporator in the temperature control system.

[0277] According to the third valve opening instruction, the evaporator valve in the temperature control system is opened, so that the refrigerant flows back to the compressor from the evaporator.

[0278] In some optional embodiments, the controller is specifically configured to:

[0279] In a case where the rising rate of the actual refrigerant high pressure of the compressor is less than or equal to the rising rate threshold value, and / or the sustained increase value of the superheat parameter of the compressor is greater than or equal to the temperature threshold value, it is determined that the temperature control system has the refrigerant migration phenomenon.

[0280] In some optional embodiments, the controller is specifically configured to:

[0281] Based on the first sustained time length in which the rising rate is less than or equal to the rising rate threshold value, and the second sustained time length in which the sustained increase value is greater than or equal to the temperature threshold value, a reference time length is obtained.

[0282] A third valve opening parameter that is positively correlated with the reference time length is obtained.

[0283] Based on the third valve opening parameter, a third valve opening instruction is generated.

[0284] In the embodiments of the present disclosure, the specific functions and examples of the devices in the air conditioning system can be referred to the related descriptions in the foregoing control method embodiments of the air conditioning system, and will not be described here.

[0285] In addition, it should be noted that the acquisition, storage and application of user personal information in the technical solutions provided in the embodiments of the present disclosure comply with relevant laws and regulations and do not violate public order and good customs.

[0286] Further, the embodiments of the present disclosure also provide an electronic device, a readable storage medium and a computer program product.

[0287] Figure 15 A schematic structural block diagram of an example electronic device 1500 that can be used to implement embodiments of the present disclosure is shown. The electronic device 1500 is intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device 1500 can also represent various forms of mobile devices, such as personal digital assistants, cellular telephones, smartphones, wearable devices, and other similar computing devices. The components shown here, their connections and relationships, and their functions, are meant to be examples only, and are not meant to limit implementations of the present disclosure described and / or claimed in this document.

[0288] As shown in Figure 15 The electronic device 1500 includes a computing unit 1501 that can perform various appropriate actions and processes in accordance with a computer program stored in a Read-Only Memory (ROM) 1502 or a computer program loaded from a storage unit 1508 into a Random Access Memory (RAM) 1503. Various programs and data required for the operation of the electronic device 1500 can also be stored in the RAM 1503. The computing unit 1501, the ROM 1502, and the RAM 1503 are connected to each other through a bus 1504. An Input / Output (I / O) interface 1505 is also connected to the bus 1504.

[0289] Various components in the electronic device 1500 are connected to the I / O interface 1505, including an input unit 1506, such as a keyboard, a mouse, etc., an output unit 1507, such as various types of renderers, a speaker, etc., a storage unit 1508, such as a magnetic disk, an optical disk, etc., and a communication unit 1509, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 1509 allows the electronic device 1500 to exchange information / data with other devices through a computer network, such as the Internet, and / or various telecommunication networks.

[0290] The computing unit 1501 can be various general and / or special purpose processing components with processing and computing capabilities. Some examples of the computing unit 1501 include, but are not limited to, a CPU, a Graphics Processing Unit (GPU), various special-purpose Artificial Intelligence (AI) computing chips, various computing units running machine learning model algorithms, a Digital Signal Process (DSP), and any appropriate processor, controller, microcontroller, etc. The computing unit 1501 performs various methods and processes described above, e.g., at least part of the steps in the control method of the air conditioning system. For example, in some embodiments, at least part of the steps in the control method of the air conditioning system can be implemented as a computer software program tangibly embodied in a machine-readable medium, e.g., the storage unit 1508. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 1500 via the ROM 1502 and / or the communication unit 1509. When the computer program is loaded onto the RAM 1503 and executed by the computing unit 1501, at least part of the steps in the control method of the air conditioning system described above can be performed. Alternatively, in other embodiments, the computing unit 1501 can be configured with at least part of the steps in the control method of the air conditioning system by any other appropriate means, e.g., by means of firmware.

[0291] Various implementations of the systems and techniques described above can be realized in digital electronic circuitry, integrated circuitry, a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), an Application Specific Standard Product (ASSP), a System on Chip (SOC), a Complex Programmable Logic Device (CPLD), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0292] Program code for carrying out methods of the present disclosure can be written in any combination of one or more programming languages. The program code can be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the program code, when executed by the processor or controller, produces a means for implementing the functions / acts specified in the flowcharts and / or block diagrams. The program code can be executed entirely on a machine, partially on a machine, partially on a machine as a stand-alone software package, partially on a machine and partially on a remote machine or entirely on a remote machine or server.

[0293] In the context of the present disclosure, a machine-readable medium can be a tangible medium that contains or stores a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium can include but is not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the machine-readable storage medium would include one or more lines of electrical connections, portable computer disks, hard disk drives, RAM, ROM, erasable programmable read-only memory (EPROM or Flash memory), optical fibers, portable compact disc read-only memories (CD-ROMs), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0294] To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having a rendering device (e.g., a Cathode Ray Tube (CRT) or Liquid Crystal Display (LCD) monitor for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the computer. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0295] The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), and the Internet.

[0296] The computer system can include a user terminal and a server. The user terminal and the server are generally remote from each other and typically interact through a communication network. The relationship of user terminal and server is merely that of two electronic devices that exchange data with each other. The server can be a cloud server, a server of a distributed system, or a server combined with a blockchain.

[0297] The embodiments of the present disclosure further provide a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to cause a computer to execute the control method of the air conditioning system.

[0298] The embodiments of the present disclosure further provide a computer program product comprising a computer program which, when executed by a processor, implements the control method of the air conditioning system.

[0299] It should be understood that the various forms of flow shown above can be re-ordered, added to, or deleted from without departing from the scope of the present disclosure. For example, the steps recited in the present disclosure can be executed in parallel, in series, or in a different order, without departing from the desired results of the technical solutions disclosed in the present disclosure, and this is not limited herein. In addition, in the present disclosure, relationship terms such as "first", "second", "third", etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. In addition, in the present disclosure, "a plurality of" can be understood as at least two.

[0300] The foregoing detailed description of implementations is not to be considered exhaustive or limiting of the scope of the disclosure. Various modifications, combinations, sub-combinations and alternatives can be apparent to one of ordinary skill in the art. Any modifications, equivalent substitutions, improvements, combinations, sub-combinations and the like, which are within the principles of the present disclosure, are intended to be included in the disclosure.

Claims

1. A control method of an air conditioning system, applied to a controller included in the air conditioning system, and the air conditioning system further including a temperature control system; the method comprising: determining a current operation state of the temperature control system; in a case where the current operation state is a small load operation state, determining an actual refrigerant pressure of a compressor in the temperature control system and a target refrigerant pressure based on the small load operation state; in a case where a result of operation of the temperature control system is determined to be a first operation result based on the actual refrigerant pressure and the target refrigerant pressure, transferring at least part of energy generated by the temperature control system to an energy recovery system, wherein the first operation result is energy supply surplus. The small load operation state is a small load cooling state or a small load heating state. In a case where the small load operation state is the small load cooling state, the actual refrigerant pressure is used to represent an actual low-pressure refrigerant of the compressor, and the target refrigerant pressure is used to represent a target low-pressure refrigerant of the compressor, and the first operation result is cooling capacity surplus and unadjustable. The determination of the result of operation of the temperature control system based on the actual refrigerant pressure and the target refrigerant pressure includes: in a case where the actual refrigerant pressure is lower than the target refrigerant pressure and a current rotating speed of the compressor is a minimum rotating speed, determining that the result of operation of the temperature control system is the first operation result. The transferring of the at least part of the energy generated by the temperature control system to the energy recovery system includes: generating a first valve opening instruction; and opening a condenser valve in the temperature control system according to the first valve opening instruction, so that at least part of refrigerant output from the compressor enters a condenser in the temperature control system after sequentially passing through a water-cooled controller and the condenser valve in the temperature control system, wherein the condenser is used to generate cooling capacity by using the at least part of refrigerant and transfer the cooling capacity generated by using the at least part of refrigerant to the energy recovery system.

2. The method of claim 1, wherein, The generation of the first valve opening instruction includes: obtaining a first temperature value of an evaporator in the temperature control system; obtaining a first valve opening degree parameter negatively correlated with the first temperature value; and generating the first valve opening instruction based on the first valve opening degree parameter.

3. The method of claim 2, wherein, 6.The method of claim 3, further comprising: in a case where a result of operation of the temperature control system is determined to be a second operation result based on the actual refrigerant pressure and the target refrigerant pressure, increasing the current rotating speed of the compressor, so that refrigerant output from the compressor enters an evaporator in the temperature control system after sequentially passing through a water-cooled controller and an evaporator valve in the temperature control system, wherein the second operation result is cooling capacity deficiency; and the evaporator is used to generate cooling capacity by using the refrigerant and output the cooling capacity generated by using the refrigerant to a target space. ​ ​ 4. The method of claim 3, wherein, ​ ​ ​ 5. The method of claim 4, wherein, ​ ​ ​ ​ ​ ​ Or, in a case where it is determined, based on the actual refrigerant pressure and the target refrigerant pressure, that the operation result of the temperature control system is a third operation result, the current rotation speed of the compressor is reduced, so that the refrigerant output from the compressor enters an evaporator in the temperature control system after sequentially passing through a water-cooled controller and an evaporator valve in the temperature control system; wherein the third operation result is that the supply of cold energy is excessive and adjustable; and the evaporator is configured to generate cold energy by using the refrigerant and output the cold energy generated by using the refrigerant to a target space.

7. The method of claim 2, wherein, The small-load operation state is the small-load heating state, and the actual refrigerant pressure is used to represent the actual high-pressure refrigerant of the compressor, and the target refrigerant pressure is used to represent the target high-pressure refrigerant of the compressor; and the first operation result is that the supply of heat energy is excessive and non-adjustable. The determination of the operation result of the temperature control system as the first operation result based on the actual refrigerant pressure and the target refrigerant pressure comprises: In a case where the actual refrigerant pressure is higher than the target refrigerant pressure and the current rotation speed of the compressor is the lowest rotation speed, it is determined that the operation result of the temperature control system is the first operation result.

8. The method of claim 7, wherein, The transferring of at least part of the energy generated by the temperature control system to an energy recovery system comprises: generating a second valve opening instruction; opening a heat dissipation valve in the temperature control system according to the second valve opening instruction, so that at least part of the heat generated by the refrigerant output from the compressor when passing through a water-cooled controller in the temperature control system can be transferred to the energy recovery system through the heat dissipation valve.

9. The method of claim 8, wherein, The generation of the second valve opening instruction comprises: obtaining a second temperature value of a warm core in the temperature control system; obtaining a second valve opening degree parameter that is positively correlated with the second temperature value; generating the second valve opening instruction based on the second valve opening degree parameter.

10. The method of claim 7, further comprising: in a case where it is determined, based on the actual refrigerant pressure and the target refrigerant pressure, that the operation result of the temperature control system is a fourth operation result, the current rotation speed of the compressor is increased, so that the heat generated by the refrigerant output from the compressor when passing through a water-cooled controller in the temperature control system enters a warm core in the temperature control system and is output to a target space through the warm core; wherein the fourth operation result is that the supply of heat energy is insufficient; Or, in a case where it is determined, based on the actual refrigerant pressure and the target refrigerant pressure, that the operation result of the temperature control system is a fifth operation result, the current rotation speed of the compressor is reduced, so that the heat generated by the refrigerant output from the compressor when passing through a water-cooled controller in the temperature control system enters a warm core in the temperature control system and is output to a target space through the warm core; wherein the fifth operation result is that the supply of heat energy is excessive and adjustable.

11. The method of claim 1, wherein, The air conditioning system is a vehicle-mounted air conditioning system of a target vehicle; and the energy recovery system comprises a storage battery of the target vehicle.

12. The method of any one of claims 1-11, further comprising: generate a third valve opening instruction in a case where the current operating state is a heavy load heating state and it is determined that the temperature control system has a refrigerant migration phenomenon; wherein the refrigerant migration phenomenon is a phenomenon that refrigerant in the compressor migrates from a suction end of the compressor to an evaporator in the temperature control system; open an evaporator valve in the temperature control system according to the third valve opening instruction, so that the refrigerant flows back to the compressor from the evaporator.

13. The method of claim 12, wherein, The determination that the temperature control system has a refrigerant migration phenomenon includes: determining that the temperature control system has a refrigerant migration phenomenon in a case where an actual refrigerant high pressure of the compressor has an increase rate less than or equal to an increase rate threshold value, and / or a continuously increasing value of a superheat parameter of the compressor is greater than or equal to a temperature threshold value.

14. The method of claim 13, wherein, The generation of the third valve opening instruction includes: obtaining a reference time length based on a first continuous time length during which the increase rate is less than or equal to the increase rate threshold value, and a second continuous time length during which the continuously increasing value is greater than or equal to the temperature threshold value; obtaining a third valve opening degree parameter that is positively correlated with the reference time length; generating the third valve opening instruction based on the third valve opening degree parameter.

15. A control device of an air conditioning system, applied to a controller included in the air conditioning system, and the air conditioning system further includes a temperature control system; The device includes: a state determination unit configured to determine a current operating state of the temperature control system; a pressure determination unit configured to determine an actual refrigerant pressure and a target refrigerant pressure of a compressor in the temperature control system based on a small load operating state in a case where the current operating state is the small load operating state; an energy transfer unit configured to transfer at least part of energy generated by the temperature control system to an energy recovery system in a case where it is determined that an operating result of the temperature control system is a first operating result based on the actual refrigerant pressure and the target refrigerant pressure; wherein the first operating result is energy supply surplus.

16. An air conditioning system, including a controller and a temperature control system connected to the controller; The controller is configured to: determine a current operating state of the temperature control system; determine an actual refrigerant pressure and a target refrigerant pressure of a compressor in the temperature control system based on a small load operating state in a case where the current operating state is the small load operating state; In a case where it is determined, based on the actual refrigerant pressure and the target refrigerant pressure, that the operation result of the temperature control system is a first operation result, at least part of energy generated by the temperature control system is transferred to an energy recovery system; wherein, The first operating result is energy supply surplus.

17. The air conditioning system of claim 16, wherein, The small load operating state is a small load refrigeration state or a small load heating state.

18. The air conditioning system of claim 17, wherein, The small load operating state is the small load refrigeration state, and the actual refrigerant pressure is used to represent an actual refrigerant low pressure of the compressor, and the target refrigerant pressure is used to represent a target refrigerant low pressure of the compressor; and the first operating result is cold supply surplus and cannot be adjusted. The controller is specifically configured to: determine that the operating result of the temperature control system is the first operating result in a case where the actual refrigerant pressure is lower than the target refrigerant pressure, and a current rotating speed of the compressor is a minimum rotating speed.

19. The air conditioning system of claim 18, wherein, The controller is specifically configured to: generate a first valve opening instruction; According to the first valve opening instruction, a condenser valve in the temperature control system is opened, so that at least part of refrigerant output from the compressor enters a condenser in the temperature control system after sequentially passing through a water-cooled controller and the condenser valve in the temperature control system; the condenser is configured to generate cold energy by using the at least part of refrigerant, and transfer the cold energy generated by using the at least part of refrigerant to the energy recovery system.

20. The air conditioning system of claim 17, wherein, The small-load operation state is the small-load heating state, and the actual refrigerant pressure is used to represent an actual refrigerant high pressure of the compressor, and the target refrigerant pressure is used to represent a target refrigerant high pressure of the compressor; and the first operation result is heat supply excess and unadjustable. The controller is specifically configured to: determine that the operation result of the temperature control system is the first operation result, in a case where the actual refrigerant pressure is higher than the target refrigerant pressure, and a current rotating speed of the compressor is a minimum rotating speed.

21. The air conditioning system of claim 20, wherein, The controller is specifically configured to: generate a second valve opening instruction; according to the second valve opening instruction, open a heat dissipation valve in the temperature control system, so that at least part of heat generated when refrigerant output from the compressor passes through a water-cooled controller in the temperature control system can pass through the heat dissipation valve and be transferred to the energy recovery system.

22. The air conditioning system of any of claims 16-21, wherein, The controller is further configured to: generate a third valve opening instruction, in a case where the current operation state is a large-load heating state, and it is determined that the temperature control system has a refrigerant migration phenomenon; the refrigerant migration phenomenon is a phenomenon that refrigerant in the compressor migrates from a suction end of the compressor to an evaporator in the temperature control system; according to the third valve opening instruction, open an evaporator valve in the temperature control system, so that the refrigerant flows back to the compressor from the evaporator.

23. A vehicle comprising the air conditioning system of any one of claims 16-22.

24. An electronic device comprising: at least one processor; a memory communicatively connected with the at least one processor; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-14.

25. A non-transitory computer readable storage medium having stored thereon computer instructions, wherein, The computer instructions are used to enable the computer to perform the method of any one of claims 1-14.

26. A computer program product comprising a computer program which, when executed by a processor, implements the method of any one of claims 1-14.

26. A computer program product comprising a computer program which, when executed by a processor, implements the method of any one of claims 1-14.

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