Vehicle-mounted air conditioner control method, device and equipment

Abstract

The invention relates to the technical field of vehicle-mounted air conditioners, in particular to a vehicle-mounted air conditioner control method, device and equipment. The vehicle-mounted air conditioner control method comprises the steps that the working modes of a heat pump are determined according to received instruction information and the environment temperature, and the working modes of the heat pump comprise the refrigerating mode, the heating mode and the natural wind mode; in the determined working mode, operation parameters of all parts of the heat pump and operation parameters of the electric auxiliary heating equipment are determined according to the instruction information; and the heat pump and / or the electric auxiliary heating equipment are / is operated according to the determined operation parameters, so that the environment temperature is adjusted through the heat pump and / or the electric auxiliary heating equipment. According to the embodiment of the invention, the heat pump and the electric auxiliary heating equipment are combined to jointly execute the temperature regulation method, so that a large amount of energy consumption generated when the electric auxiliary heating equipment is independently used for heating is avoided, and the endurance mileage of the new energy vehicle is increased.

Description

Technical Field

[0001] This application relates to the field of vehicle air conditioning technology, and in particular to a vehicle air conditioning control method, device and equipment. Background Technology

[0002] Against the backdrop of a global push for green travel and carbon emission reduction, the new energy vehicle industry is booming. However, the energy consumption of air conditioning systems in new energy vehicles has become a key challenge restricting their further development. The air conditioning systems of new energy vehicles must not only meet the temperature requirements for passenger comfort but also address the heat dissipation or heating needs of critical components such as batteries and motors. In winter, traditional gasoline vehicles can utilize waste heat from the engine for heating, resulting in lower energy consumption. However, new energy vehicles lack this heat source; if they rely solely on electric auxiliary heating devices (PTC) such as resistance wires for heating, energy consumption is extremely high, drastically reducing driving range.

[0003] To reduce the energy consumption of air conditioning systems, the limitations of traditional thermal management technologies have become apparent. While simple air-cooled systems are low-cost, they are inefficient and energy-intensive in regulating the vehicle's interior temperature, and struggle to operate stably under complex conditions. Liquid-cooled systems, on the other hand, can control temperature better, but their complexity, with components such as the circulation pump constantly running, increases additional energy consumption. Furthermore, their high cost and large space requirements hinder the promotion and application of new energy vehicles. Summary of the Invention

[0004] This invention provides a vehicle air conditioning control method, device, and equipment to solve the problem of high energy consumption when heating new energy vehicles in the prior art.

[0005] In a first aspect, embodiments of the present invention provide a vehicle air conditioning control method, wherein the vehicle air conditioning includes a heat pump and an electric auxiliary heating device, the method comprising: The operating mode of the heat pump is determined based on the received instruction information and the ambient temperature. The operating modes of the heat pump include cooling mode, heating mode and natural wind mode. Under the determined working mode, the operating parameters of each component of the heat pump and the electric auxiliary heating equipment are determined according to the instruction information; The heat pump and / or the electric auxiliary heating device are operated according to the determined operating parameters to regulate the ambient temperature through the heat pump and / or the electric auxiliary heating device.

[0006] Optionally, the instruction information includes the expected operating mode set by the user, and determining the operating mode of the heat pump based on the received instruction information and the ambient temperature includes: When the expected operating mode is heating mode and the ambient temperature is within the preset heating temperature range, the operating mode of the heat pump is determined to be heating mode. When the expected operating mode is heating mode and the ambient temperature is not within the preset heating temperature range, the heat pump is turned off. When the expected operating mode is cooling mode and the ambient temperature is within the preset cooling temperature range, the operating mode of the heat pump is determined to be cooling mode. Otherwise, the operating mode of the heat pump is determined to be natural wind mode.

[0007] Optionally, the method further includes: When the expected working mode is heating mode and the ambient temperature is within the preset heating temperature range, the heat pump is assisted in heating by the electric auxiliary heating device. When the expected operating mode is heating mode and the ambient temperature is not within the preset heating temperature range, heating is performed solely by the electric auxiliary heating device.

[0008] Optionally, after determining the operating mode of the heat pump, the method further includes: The conduction state of the four-way valve in the heat pump is determined according to the operating mode. The four-way valve is used to control the flow direction of the refrigerant in the heat pump; When the operating mode is heating mode, high-temperature and high-pressure refrigerant flows from the indoor heat exchanger of the heat pump to the outdoor heat exchanger through the four-way valve. When the operating mode is cooling mode, the high-temperature and high-pressure refrigerant flows from the outdoor heat exchanger of the heat pump to the indoor heat exchanger through the four-way valve.

[0009] Optionally, the operating parameters of the heat pump components include the opening degree of the electromagnetic expansion valve; Under the determined operating mode, the operating parameters of the heat pump component are determined according to the instruction information, including: When the heat pump is in cooling mode, the superheat of the refrigerant at the outlet of the indoor heat exchanger is obtained, and the opening degree of the electromagnetic expansion valve is determined based on the superheat and the target superheat. When the heat pump is in heating mode, the subcooling degree of the refrigerant at the outlet of the indoor heat exchanger is obtained, and the opening degree of the electromagnetic expansion valve is determined based on the subcooling degree and the target subcooling degree.

[0010] Optionally, the instruction information includes the expected temperature and expected air volume set by the user, and the operating parameters of the heat pump also include the compressor speed; Under the determined operating mode, the operating parameters of the heat pump component are determined according to the instruction information, including: The target indoor heat exchanger surface temperature is determined by using a preset temperature correspondence table under the expected temperature and expected air volume. The compressor speed is determined based on the target indoor heat exchanger surface temperature and the actual indoor heat exchanger surface temperature.

[0011] Optionally, the operating parameters of the electric auxiliary heating equipment include the duty cycle of the electric auxiliary heating equipment; Determine the operating parameters of the electric auxiliary heating equipment, including: When the electric auxiliary heating device assists the heat pump in heating, the duty cycle corresponding to the electric auxiliary heating device is determined according to the preset duty cycle correspondence table, based on the ambient temperature and the actual indoor heat exchanger surface temperature. When the electric auxiliary heating device is used for heating alone, the duty cycle corresponding to the electric auxiliary heating device is determined according to the preset duty cycle correspondence table at the ambient temperature and the expected temperature set by the user. Otherwise, shut down the electric auxiliary heating device.

[0012] Optionally, when the electric auxiliary heating device assists the heat pump in heating, the method further includes: When the actual surface temperature of the indoor heat exchanger is lower than the ambient temperature, and the temperature difference reaches a preset first temperature difference threshold, the electric auxiliary heating device is turned off, and heating is performed solely by the heat pump.

[0013] Secondly, embodiments of the present invention provide a vehicle air conditioning control device, the device comprising: The first determining module determines the operating mode of the heat pump based on the received instruction information and the ambient temperature. The operating modes of the heat pump include cooling mode, heating mode and natural wind mode. The second determining module, under the determined working mode, determines the operating parameters of each component of the heat pump and the electric auxiliary heating equipment according to the instruction information; The adjustment module operates the heat pump and / or the electric auxiliary heating device according to the determined operating parameters, so as to regulate the ambient temperature through the heat pump and / or the electric auxiliary heating device.

[0014] Thirdly, embodiments of the present invention provide an electronic device, including: At least one processor; and At least one memory communicatively connected to the processor, wherein: The memory stores program instructions that can be executed by the processor, which can invoke the program instructions to perform the method as described in any of the first aspects.

[0015] This invention combines a heat pump with an electric auxiliary heating device to jointly regulate temperature, avoiding the large energy consumption generated when using the electric auxiliary heating device alone for heating, and thus improving the driving range of new energy vehicles. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 The diagram shown is a structural system diagram of a vehicle air conditioner provided in an embodiment of this application; Figure 2 The diagram shown is a flowchart of a vehicle air conditioning control method provided in an embodiment of this application; Figure 3 The diagram shown is a schematic representation of a specific vehicle air conditioning system according to an embodiment of this application. Figure 4 The diagram shown is a structural schematic of a vehicle air conditioning control device provided in an embodiment of this application; Figure 5 The diagram shown is a structural schematic of an electronic device provided in an embodiment of this application. Detailed Implementation

[0018] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0019] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0020] like Figure 1 The diagram shown is a schematic representation of a vehicle air conditioning system according to an embodiment of the present invention. (See also...) Figure 1 Vehicle air conditioning systems include heat pumps and electric auxiliary heating devices.

[0021] When the vehicle's air conditioning is cooling, it uses a heat pump for cooling.

[0022] When the vehicle air conditioner is heating, it can heat by using a heat pump alone, by using an electric auxiliary heating device alone, or by using both a heat pump and an electric auxiliary heating device simultaneously, depending on the ambient temperature.

[0023] The electric auxiliary heating device can be a resistance wire, which generates heat by heating the resistance wire. A heat pump removes heat from the environment by absorbing and releasing heat through a refrigerant, thus achieving cooling or heating inside the vehicle.

[0024] A heat pump specifically includes a compressor, an electromagnetic expansion valve, a four-way valve, an indoor heat exchanger, and an outdoor heat exchanger. The compressor, electromagnetic expansion valve, four-way valve, indoor heat exchanger, and outdoor heat exchanger together form a circuit.

[0025] Specifically, the compressor is used to compress the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gaseous form to release heat during the conduction of the heat pump pipeline.

[0026] An electromagnetic expansion valve is used to reduce the pressure of high-temperature, high-pressure liquid refrigerant, converting it into a low-temperature, low-pressure liquid form to absorb heat during the operation of the heat pump pipeline.

[0027] A four-way valve is used to control the flow direction of refrigerant in the heat pump pipeline through different conduction methods, that is, to control the flow of high-temperature and high-pressure refrigerant from the indoor heat exchanger to the outdoor heat exchanger, or from the outdoor heat exchanger to the indoor heat exchanger.

[0028] The indoor heat exchanger acts as an evaporator in heating mode, releasing heat from the refrigerant to provide heat; and as a condenser in cooling mode, absorbing heat from the environment.

[0029] The outdoor heat exchanger acts as a condenser in heating mode, absorbing heat from the environment; and as an evaporator in cooling mode, releasing heat from the refrigerant.

[0030] In cooling mode, the refrigerant in the indoor heat exchanger absorbs heat from the indoor environment and releases it to the outdoor environment through the outdoor heat exchanger, thus transferring heat from indoors to outdoors and lowering the indoor temperature. In heating mode, the refrigerant in the outdoor heat exchanger absorbs heat from the outdoor environment and releases it to the indoor environment through the indoor heat exchanger, thus transferring heat from outdoors to indoors and raising the indoor temperature.

[0031] The compressor and electromagnetic expansion valve are used to convert the refrigerant into a physical form that is more likely to absorb or release heat.

[0032] In this embodiment of the invention, the vehicle air conditioner, in addition to using a heat pump, also uses an electric auxiliary heating device to assist the heat pump in temperature regulation. Because in some extreme environments, the ambient heat level is too high or too low to fully meet the heat transfer requirements, and therefore cannot meet the user's set temperature, an electric auxiliary heating device is needed to assist the heat pump in temperature regulation.

[0033] Specifically, the system will determine whether to activate the heat pump or electric auxiliary heating device alone, or to use both the heat pump and electric auxiliary heating device simultaneously, based on whether the actual ambient temperature meets the preset temperature range.

[0034] Furthermore, when starting the heat pump and / or electric auxiliary heating equipment for temperature regulation, the operating parameters of the heat pump and electric auxiliary heating equipment will be adjusted according to the ambient temperature and the user's temperature requirements in order to meet the user's temperature requirements in the most efficient way.

[0035] like Figure 2 The diagram shown is a flowchart of a vehicle air conditioning control method provided in an embodiment of the present invention. See also... Figure 2 The specific steps of this method include: S201, based on the received instruction information and the ambient temperature, determines the operating mode of the heat pump. The operating modes of the heat pump include cooling mode, heating mode, and natural wind mode.

[0036] Specifically, the instruction information is generally the command given by the user when turning on or adjusting the vehicle's air conditioning. The instruction information will include the user's expected operating mode, that is, whether the user wants the vehicle's air conditioning to blow air in heating or cooling mode, as well as the required temperature, fan speed, etc.

[0037] When the expected operating mode is heating mode, and the ambient temperature is determined to be within the preset heating range by the onboard sensors, the heat pump is set to operate in heating mode. Simultaneously, the electric auxiliary heating device integrated into the vehicle's air conditioning system assists the heat pump in heating.

[0038] When the expected operating mode is heating mode, and the ambient temperature is determined by the vehicle's onboard sensors to be outside the preset heating range, the heat pump is shut down. Heating is then provided solely by the electric auxiliary heating device.

[0039] When the ambient temperature is within the preset heating range, it means there is sufficient heat in the environment, which can be used for heating by the heat pump. When the ambient temperature is not within the preset heating range, i.e., the ambient temperature is low, it means there is less heat in the environment, and the heating efficiency of the heat pump is low. Therefore, the heat pump is turned off, and heating is carried out solely by the electric auxiliary heating device.

[0040] Generally, a heating range can be determined by setting a temperature threshold. When the ambient temperature is higher than the threshold, it is determined that the system is within the heating range; otherwise, it is determined that the system is not within the heating range.

[0041] When the expected operating mode is cooling mode, and the ambient temperature is determined to be within the preset cooling range by the onboard sensors, the heat pump's operating mode is set to cooling mode. Cooling is then performed solely by the heat pump.

[0042] In other situations or scenarios, the heat pump should be set to natural wind mode.

[0043] After determining the operating mode of the heat pump, the conduction state of the four-way valve in the heat pump is determined based on the operating mode. The four-way valve in the heat pump is used to control the flow direction of the refrigerant in the heat pump.

[0044] When the heat pump is in heating mode, the high-temperature and high-pressure refrigerant flows from the indoor heat exchanger to the outdoor heat exchanger through the four-way valve. The refrigerant releases heat in the indoor heat exchanger and then flows to the outdoor heat exchanger to absorb heat, thus achieving heating.

[0045] When the heat pump is in cooling mode, the high-temperature and high-pressure refrigerant flows from the outdoor heat exchanger to the indoor heat exchanger through the four-way valve. The refrigerant releases heat in the outdoor heat exchanger and then absorbs heat in the indoor heat exchanger, thus achieving cooling.

[0046] S202, under the determined working mode, determine the operating parameters of each component of the heat pump and the electric auxiliary heating equipment according to the instruction information.

[0047] Specifically, the operating parameters of heat pump components include the opening degree of the electromagnetic expansion valve and the compressor speed. The operating parameters of the electric auxiliary heating equipment include the duty cycle of the electric auxiliary heating equipment.

[0048] When determining the opening degree of the electromagnetic expansion valve of the heat pump, if the heat pump is in cooling mode, the superheat of the refrigerant at the outlet of the indoor heat exchanger is obtained by a temperature and pressure sensor deployed at the outlet of the indoor heat exchanger, and the opening degree of the electromagnetic expansion valve is calculated by the superheat and the target superheat.

[0049] When the heat pump is in heating mode, the subcooling of the refrigerant at the outlet of the indoor heat exchanger is obtained by a temperature and pressure sensor deployed at the outlet of the indoor heat exchanger. The opening degree of the electromagnetic expansion valve is then calculated by using the subcooling and the target subcooling.

[0050] When the heat pump is not started, that is, when heating is provided solely by the electric auxiliary heating device or in natural wind mode, the opening of the electromagnetic expansion valve remains unchanged.

[0051] Superheat is the difference between the refrigerant vapor temperature and its saturation temperature at the corresponding pressure; subcooling is the difference between the refrigerant liquid temperature and its saturation temperature at the corresponding pressure. Target superheat and target subcooling are preset values ​​based on experience to achieve the heating and cooling functions of the air conditioner.

[0052] Generally, when calculating the opening degree of an electromagnetic expansion valve, a PID control algorithm can be used for feedforward control to determine and adjust the opening degree of the electromagnetic expansion valve.

[0053] When determining the compressor speed of a heat pump, it is necessary to obtain the expected temperature and expected air volume set by the user from the instruction information.

[0054] The target indoor heat exchanger surface temperature is determined using a preset temperature correspondence table, corresponding to the expected temperature and airflow. This target indoor heat exchanger surface temperature is pre-determined based on experience and stored in the temperature correspondence table for direct retrieval; it is the heat exchanger surface temperature used to achieve the expected temperature.

[0055] The compressor speed is calculated based on the target heat exchanger surface temperature and the actual indoor heat exchanger surface temperature measured by sensors deployed on the heat exchanger surface.

[0056] In calculating the compressor speed, the PID control algorithm can also be used for feedforward control to determine and adjust the compressor speed.

[0057] When determining the duty cycle of the electric auxiliary heating equipment, if the electric auxiliary heating equipment assists the heat pump in heating, the duty cycle corresponding to the electric auxiliary heating equipment at the current ambient temperature and the actual indoor heat exchanger surface temperature can be determined by using a preset duty cycle correspondence table.

[0058] Specifically, when the actual surface temperature of the indoor heat exchanger is lower than the ambient temperature, and the temperature difference reaches a preset first temperature difference threshold, the electric auxiliary heating equipment is shut down, and heating is provided solely by the heat pump. Typically, the first temperature difference threshold is set to 5°C.

[0059] When the electric auxiliary heating device is used for heating alone, the duty cycle corresponding to the electric auxiliary heating device is determined by the preset duty cycle correspondence table under the current ambient temperature and the user-set expected temperature.

[0060] In other situations or scenarios, turn off the electric auxiliary heating equipment.

[0061] S203, operate the heat pump and / or the electric auxiliary heating device according to the determined operating parameters, so as to regulate the ambient temperature through the heat pump and / or the electric auxiliary heating device.

[0062] This invention combines a heat pump with an electric auxiliary heating device to jointly regulate temperature, avoiding the large energy consumption generated when using the electric auxiliary heating device alone for heating, and thus improving the driving range of new energy vehicles.

[0063] like Figure 3 The diagram shown is a schematic representation of a specific vehicle air conditioning system provided in an embodiment of the present invention.

[0064] See Figure 3 The vehicle air conditioning system includes a heat pump and an electric auxiliary heating device. In this embodiment of the invention, the electric auxiliary heating device is a PTC (Power Distribution System). The vehicle air conditioning system also includes a processing device.

[0065] The heat pump circuit includes, in sequence, a compressor, a four-way valve, an indoor heat exchanger, an electromagnetic expansion valve, an outdoor heat exchanger, and a gas-liquid separator. A blower and an electric fan are also installed at the indoor and outdoor heat exchangers.

[0066] When the heat pump is in cooling mode, the D port of the four-way valve is connected to the C port, and the E port is connected to the S port. The refrigerant, compressed by the compressor, first passes through the outdoor heat exchanger, where it releases heat. The refrigerant then undergoes a pressure drop through the electromagnetic expansion valve and flows to the indoor heat exchanger, where it absorbs heat. A blower located in the indoor heat exchanger then blows the cooled air into the vehicle compartment to complete the cooling process. Finally, it passes through the gas-liquid separator and returns to the compressor for recirculation.

[0067] The electromagnetic expansion valve calculates the superheat of the refrigerant at the outlet of the indoor heat exchanger using a temperature and pressure sensor c (PT_c), and determines the opening degree of the electromagnetic expansion valve in conjunction with the target superheat.

[0068] When the heat pump is in heating mode, port D of the four-way valve is connected to port E, and port C is connected to port S. The refrigerant, compressed by the compressor, first passes through the indoor heat exchanger, where it releases heat. A blower located at the indoor heat exchanger then blows the released heat into the vehicle compartment to provide heating. The refrigerant then undergoes pressure reduction through the electromagnetic expansion valve and flows to the outdoor heat exchanger. After absorbing heat in the outdoor heat exchanger, it passes through the gas-liquid separator and returns to the compressor for recirculation.

[0069] The electromagnetic expansion valve calculates the subcooling of the refrigerant at the outlet of the indoor heat exchanger using a temperature and pressure sensor d (PT_d), and determines the opening degree of the electromagnetic expansion valve in conjunction with the target subcooling.

[0070] Optionally, when the heat pump is in heating mode, auxiliary heating is required simultaneously through an electric auxiliary heating device deployed indoors. The actual surface temperature of the indoor heat exchanger is obtained by a temperature sensor Tc deployed on the indoor heat exchanger, and the duty cycle of the electric auxiliary heating device is further determined based on the ambient temperature.

[0071] Corresponding to the above-described vehicle air conditioning control method, this application also provides a vehicle air conditioning control device. See [link to related document]. Figure 4 This is a schematic diagram of the structure of a vehicle air conditioning control device provided in an embodiment of this application. The vehicle air conditioning control device may include: a first determining module 401, a second determining module 402, and an adjusting module 403.

[0072] The first determining module 401 determines the working mode of the heat pump based on the received instruction information and the ambient temperature. The working modes of the heat pump include cooling mode, heating mode and natural wind mode.

[0073] The second determining module 402, under the determined working mode, determines the operating parameters of each component of the heat pump and the electric auxiliary heating equipment according to the instruction information.

[0074] The adjustment module 403 operates the heat pump and / or the electric auxiliary heating device according to the determined operating parameters, so as to adjust the ambient temperature through the heat pump and / or the electric auxiliary heating device.

[0075] Figure 5 This is a schematic diagram illustrating the structure of one embodiment of the electronic device described in this specification. Figure 5 As shown, the above-mentioned electronic device may include at least one processor; and at least one memory communicatively connected to the processing unit, wherein: the memory stores program instructions that can be executed by the processing unit, and the processor can execute the vehicle air conditioning control method provided in this embodiment by calling the program instructions.

[0076] The aforementioned electronic device can be a device capable of intelligent dialogue with the user, such as a cloud server. This specification does not limit the specific form of the electronic device in the embodiments. It is understood that the electronic device here refers to the machine mentioned in the method embodiments.

[0077] Figure 5 A block diagram of an exemplary electronic device suitable for implementing embodiments of this specification is shown. Figure 5 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments described in this specification.

[0078] like Figure 5 As shown, the electronic device is represented in the form of a general-purpose computing device. The components of the electronic device may include, but are not limited to: one or more processors 510, communication interface 520, memory 530, and communication bus 540 connecting different system components (including memory 530, communication interface 520 and processor 510).

[0079] The communication bus 540 represents one or more of several bus architectures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of the various bus architectures. For example, these architectures include, but are not limited to, Industry Standard Architecture (ISA) buses, Micro Channel Architecture (MAC) buses, Enhanced ISA buses, Video Electronics Standards Association (VESA) local buses, and Peripheral Component Interconnect (PCI) buses.

[0080] Electronic devices typically include a variety of computer-readable media. These media can be any available media that can be accessed by the electronic device, including volatile and non-volatile media, and removable and non-removable media.

[0081] Memory 530 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) and / or cache memory. The electronic device may further include other removable / non-removable, volatile / non-volatile computer system storage media. Memory 530 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments described herein.

[0082] A program / utility having a set (at least one) of program modules may be stored in memory 530. Such program modules include, but are not limited to, an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment. The program modules typically perform the functions and / or methods described in the embodiments of this specification.

[0083] The processor 510 executes various functional applications and data processing by running programs stored in the memory 530, such as implementing the vehicle air conditioning control method provided in the embodiments shown in this specification.

[0084] This specification provides a non-transitory computer-readable storage medium that stores computer instructions that cause the computer to execute the vehicle air conditioning control method provided in the embodiments shown in this specification.

[0085] The aforementioned non-transitory computer-readable storage medium may be any combination of one or more computer-readable media. A computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or flash memory, optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in connection with an instruction execution system, apparatus, or device.

[0086] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, capable of sending, propagating, or transmitting programs for use by or in connection with an instruction execution system, apparatus, or device.

[0087] Program code contained on a computer-readable medium may be transmitted using any suitable medium, including but not limited to wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0088] Computer program code for performing the operations described herein can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as "C" or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or it can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0089] The foregoing has described specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired result. In some embodiments, multitasking and parallel processing are possible or may be advantageous.

[0090] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0091] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this specification includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as will be understood by those skilled in the art to which the embodiments of this specification pertain.

[0092] Depending on the context, the word "if" as used here can be interpreted as "when," "when," "in response to determination," or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination," "in response to determination," "when detection (of the stated condition or event)," or "in response to detection (of the stated condition or event)."

[0093] It should be noted that the terminals involved in the embodiments of this specification may include, but are not limited to, personal computers (PCs), personal digital assistants (PDAs), wireless handheld devices, tablet computers, mobile phones, MP3 players, MP4 players, etc.

[0094] In the embodiments provided in this specification, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0095] Furthermore, the functional units in the various embodiments of this specification can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in a combination of hardware and software functional units.

[0096] The integrated units implemented as software functional units described above can be stored in a computer-readable storage medium. These software functional units, stored in a storage medium, include several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute some steps of the methods described in the various embodiments of this specification.

[0097] The above description is merely a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification should be included within the scope of protection of this specification.

Claims

1. A method for controlling a vehicle air conditioner, characterized in that, The vehicle air conditioning system includes a heat pump and an electric auxiliary heating device, and the method includes: The operating mode of the heat pump is determined based on the received instruction information and the ambient temperature. The operating modes of the heat pump include cooling mode, heating mode and natural wind mode. Under the determined working mode, the operating parameters of each component of the heat pump and the electric auxiliary heating equipment are determined according to the instruction information; The heat pump and / or the electric auxiliary heating device are operated according to the determined operating parameters to regulate the ambient temperature through the heat pump and / or the electric auxiliary heating device.

2. The method according to claim 1, characterized in that, The instruction information includes the expected operating mode set by the user. Determining the heat pump's operating mode based on the received instruction information and the ambient temperature includes: When the expected operating mode is heating mode and the ambient temperature is within the preset heating temperature range, the operating mode of the heat pump is determined to be heating mode. When the expected operating mode is heating mode and the ambient temperature is not within the preset heating temperature range, the heat pump is turned off. When the expected operating mode is cooling mode and the ambient temperature is within the preset cooling temperature range, the operating mode of the heat pump is determined to be cooling mode. Otherwise, the operating mode of the heat pump is determined to be natural wind mode.

3. The method according to claim 2, characterized in that, The method further includes: When the expected working mode is heating mode and the ambient temperature is within the preset heating temperature range, the heat pump is assisted in heating by the electric auxiliary heating device. When the expected operating mode is heating mode and the ambient temperature is not within the preset heating temperature range, heating is performed solely by the electric auxiliary heating device.

4. The method according to claim 1, characterized in that, After determining the operating mode of the heat pump, the method further includes: The conduction state of the four-way valve in the heat pump is determined according to the operating mode. The four-way valve is used to control the flow direction of the refrigerant in the heat pump; When the operating mode is heating mode, high-temperature and high-pressure refrigerant flows from the indoor heat exchanger of the heat pump to the outdoor heat exchanger through the four-way valve. When the operating mode is cooling mode, the high-temperature and high-pressure refrigerant flows from the outdoor heat exchanger of the heat pump to the indoor heat exchanger through the four-way valve.

5. The method according to claim 1, characterized in that, The operating parameters of heat pump components include the opening degree of the electromagnetic expansion valve; Under the determined operating mode, the operating parameters of the heat pump component are determined according to the instruction information, including: When the heat pump is in cooling mode, the superheat of the refrigerant at the outlet of the indoor heat exchanger is obtained, and the opening degree of the electromagnetic expansion valve is determined based on the superheat and the target superheat. When the heat pump is in heating mode, the subcooling degree of the refrigerant at the outlet of the indoor heat exchanger is obtained, and the opening degree of the electromagnetic expansion valve is determined based on the subcooling degree and the target subcooling degree.

6. The method according to claim 1, characterized in that, The instruction information includes the expected temperature and expected air volume set by the user, and the operating parameters of the heat pump also include the compressor speed. Under the determined operating mode, the operating parameters of the heat pump component are determined according to the instruction information, including: The target indoor heat exchanger surface temperature is determined by using a preset temperature correspondence table under the expected temperature and expected air volume. The compressor speed is determined based on the target indoor heat exchanger surface temperature and the actual indoor heat exchanger surface temperature.

7. The method according to claim 3, characterized in that, The operating parameters of the electric auxiliary heating equipment include the duty cycle of the electric auxiliary heating equipment; Determine the operating parameters of the electric auxiliary heating equipment, including: When the electric auxiliary heating device assists the heat pump in heating, the duty cycle corresponding to the electric auxiliary heating device is determined according to the preset duty cycle correspondence table, based on the ambient temperature and the actual indoor heat exchanger surface temperature. When the electric auxiliary heating device is used for heating alone, the duty cycle corresponding to the electric auxiliary heating device is determined according to the preset duty cycle correspondence table at the ambient temperature and the expected temperature set by the user. Otherwise, shut down the electric auxiliary heating device.

8. The method according to claim 7, characterized in that, When the electric auxiliary heating device assists the heat pump in heating, the method further includes: When the actual surface temperature of the indoor heat exchanger is lower than the ambient temperature, and the temperature difference reaches a preset first temperature difference threshold, the electric auxiliary heating device is turned off, and heating is performed solely by the heat pump.

9. A vehicle air conditioning control device, characterized in that, The device includes: The first determining module determines the operating mode of the heat pump based on the received instruction information and the ambient temperature. The operating modes of the heat pump include cooling mode, heating mode and natural wind mode. The second determining module, under the determined working mode, determines the operating parameters of each component of the heat pump and the electric auxiliary heating equipment according to the instruction information; The adjustment module operates the heat pump and / or the electric auxiliary heating device according to the determined operating parameters, so as to regulate the ambient temperature through the heat pump and / or the electric auxiliary heating device.

10. An electronic device, characterized in that, include: At least one processor; as well as At least one memory communicatively connected to the processor, wherein: The memory stores program instructions that can be executed by the processor, and the processor can invoke the program instructions to perform the method as described in any one of claims 1 to 8.

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