Heating control method of air conditioning system, electronic equipment and computer storage medium

Abstract

The invention discloses an air conditioning system heating control method, electronic equipment and a computer storage medium, and the method comprises the following steps: in response to a heating request, entering a heat pump heating mode; when the preset PTC heat compensation activation condition is met, a dual-heating mode is entered; in the double-heating mode, the rotating speed of a compressor is controlled according to the refrigerant high-pressure saturation temperature, and the power or the water outlet temperature of a PTC heater is controlled according to the real-time warm air core outlet air temperature; and when the real-time warm air core body outlet air temperature reaches the target warm air core body outlet air temperature and the power of the PTC heater is lower than a preset PTC power threshold value, the dual-heating mode is quitted. According to the technical scheme, the heating requirement of the passenger compartment is met as soon as possible, meanwhile, the high heating ratio of the heat pump can be automatically achieved, the PTC heating ratio is reduced, the heating energy consumption is reduced, the switching process of the heating modes is linearly smooth, and the compressor load fluctuation and the in-vehicle temperature fluctuation are small.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy vehicles, in particular to an air conditioning system heating control method, an electronic device and a computer storage medium. BACKGROUND

[0002] At present, the air conditioning system of the new energy vehicle mainly adopts the combination of heat pump + PTC for heating. PTC refers to a positive temperature coefficient thermistor electric heater, which is a heat source itself. It produces heat through the heat effect of the resistor, and then delivers the generated heat to the passenger cabin. Generally, the efficiency of the heat pump system is higher than that of the PTC heater. Therefore, the heat pump system is preferred to be used when the conditions permit. However, when the ambient temperature is low, it is difficult to meet the heating demand by relying on the heat pump system alone, or the heat pump heating is slow due to the cold start, and the PTC heater needs to be used for auxiliary heating compensation. The PTC heating energy efficiency is less than 1, and if the PTC heating proportion is high, the energy consumption will be high, which will affect the cruising range of the vehicle. In addition, the PTC closing point is determined according to the temperature in the vehicle, and the compressor and the PTC heating capacity are not linearly connected, so the temperature in the vehicle is prone to fluctuation. SUMMARY

[0003] The purpose of the present application is to provide an air conditioning system heating control method, an electronic device and a computer storage medium, which can meet the heating demand of the passenger cabin as soon as possible, automatically realize high heat pump heating proportion, reduce PTC heating proportion, reduce heating energy consumption, and make the switching process of the heating mode linearly smooth, so that the compressor load fluctuation and the temperature fluctuation in the vehicle are small.

[0004] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows: In a first aspect, the present application provides an air conditioning system heating control method, comprising the following steps: In response to a heating request, entering a heat pump heating mode; When a preset PTC supplementary heating activation condition is met, entering a dual heating mode; In the dual heating mode, controlling the speed of the compressor according to the high-pressure saturated temperature of the refrigerant, and controlling the power of the PTC heater or the outlet water temperature according to the real-time warm air core outlet air temperature; When the real-time warm air core outlet air temperature reaches the target warm air core outlet air temperature, and the power of the PTC heater is lower than the preset PTC power threshold, the dual heating mode is exited.

[0005] As one of the embodiments, the method further comprises at least one of the following: If the speed of the compressor is greater than the difference between the maximum allowable speed and the preset offset value, and the difference between the target warm air core outlet air temperature and the real-time warm air core outlet air temperature is greater than the first preset threshold and lasts for the first preset time length, the preset PTC supplementary heating activation condition is met. If the ambient temperature is lower than the preset temperature threshold, the required heating power is greater than the preset heating power threshold, and the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature is greater than the second preset threshold and continues for the second preset duration, then the preset PTC supplementary heating activation conditions are met. If the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature is greater than the third preset threshold, and the compressor speed is less than the preset speed threshold and continues for the third preset duration, then the preset PTC heat replenishment activation condition is met.

[0006] In one implementation method, under dual heating mode, the compressor speed is controlled based on the refrigerant high-pressure saturation temperature, and the power or outlet water temperature of the PTC heater is controlled based on the real-time outlet air temperature of the warm air core, including: In dual heating mode, the compressor speed is adjusted according to the difference between the refrigerant high-pressure saturation temperature and the target high-pressure saturation temperature, and the power or outlet water temperature of the PTC heater is adjusted according to the difference between the target heating core outlet air temperature and the real-time heating core outlet air temperature.

[0007] As one implementation method, adjusting the compressor speed based on the difference between the refrigerant high-pressure saturation temperature and the target high-pressure saturation temperature includes: The target high-pressure saturation temperature is calculated based on the target outlet air temperature of the heating core and the first preset compensation value. The first preset compensation value increases as the difference between the target outlet air temperature of the heating core and the real-time outlet air temperature of the heating core increases. The compressor speed is controlled by PID based on the difference between the refrigerant high-pressure saturation temperature and the target high-pressure saturation temperature. The first feedforward term of the PID control is determined based on the power of the PTC heater.

[0008] As one implementation method, the compressor speed is controlled by PID based on the difference between the refrigerant high-pressure saturation temperature and the target high-pressure saturation temperature, and the method further includes: The proportional gain and integral gain of the PID control are determined based on the difference between the high-pressure saturation temperature of the refrigerant and the target high-pressure saturation temperature. The larger the difference, the larger the proportional gain and integral gain.

[0009] As one implementation method, adjusting the power or outlet water temperature of the PTC heater based on the difference between the target outlet air temperature of the warm air core and the real-time outlet air temperature of the warm air core includes: Based on the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature, the power or outlet water temperature of the PTC heater is controlled by PID. The second feedforward term of the PID control is determined based on the target warm air core outlet temperature and the second preset compensation value, which is determined based on the blower air volume and the ambient temperature.

[0010] As one implementation method, after exiting the dual heating mode when the real-time heating core outlet air temperature reaches the target heating core outlet air temperature and the PTC heater power is lower than the preset PTC power threshold, the method further includes: The compressor speed is adjusted based on the difference between the target outlet air temperature of the heater core and the real-time outlet air temperature of the heater core.

[0011] As one implementation method, adjusting the compressor speed based on the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature includes: The compressor speed is controlled by PID based on the difference between the target outlet air temperature of the heater core and the real-time outlet air temperature of the heater core. The third feedforward term of the PID control is determined based on the blower air volume and the ambient temperature.

[0012] Secondly, this application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the heating control method of the air conditioning system as described in the first aspect.

[0013] Thirdly, this application provides a computer storage medium storing a computer program, which, when executed by a processor, implements the steps of the heating control method for the air conditioning system as described in the first aspect.

[0014] This application provides a heating control method, electronic device, and computer storage medium for an air conditioning system, comprising the following steps: responding to a heating request, entering a heat pump heating mode; entering a dual heating mode when the preset PTC supplementary heating activation conditions are met; in the dual heating mode, controlling the compressor speed according to the refrigerant high-pressure saturation temperature, and controlling the PTC heater power or outlet water temperature according to the real-time warm air core outlet air temperature; exiting the dual heating mode when the real-time warm air core outlet air temperature reaches the target warm air core outlet air temperature and the PTC heater power is lower than the preset PTC power threshold. The technical solution of this application, in dual heating mode, controls the compressor speed according to the refrigerant high-pressure saturation temperature, and controls the power or outlet water temperature of the PTC heater according to the real-time heater core outlet air temperature. When the real-time heater core outlet air temperature reaches the target heater core outlet air temperature and the power of the PTC heater is lower than the preset PTC power threshold, the dual heating mode is exited. While quickly meeting the heating needs of the passenger compartment, it can also automatically achieve a high proportion of heat pump heating, reduce the proportion of PTC heating, reduce heating energy consumption, and the switching process of heating mode is linear and smooth with small fluctuations in compressor load and vehicle interior temperature. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a flowchart illustrating a heating control method for an air conditioning system provided in an embodiment of this application.

[0017] Figure 2 This is a schematic diagram of the structure of an air conditioning system provided in an embodiment of this application.

[0018] Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0019] Explanation of reference numerals in the attached figures: processor 110, memory 111, network interface 112, bus system 113. Detailed Implementation

[0020] The specific embodiments of this application will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely a part of the embodiments of this application, and not all of them. Based on the description of this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0021] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, components, features, and elements with the same names in different embodiments of this application may have the same meaning or different meanings, the specific meaning of which must be determined by its interpretation in that specific embodiment or further in conjunction with the context of that specific embodiment.

[0022] It should be understood that although the terms first, second, third, etc., may be used herein to describe various information, this information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this document, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word “if” as used herein may be interpreted as “when…” or “in response to determination”. Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of a feature, step, operation, element, component, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Therefore, "A, B, or C" or "A, B, and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A, B, and C". Exceptions to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0023] It should be understood that although the steps in the flowcharts of this application's embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least a portion of the sub-steps or stages of other steps.

[0024] It should be noted that step designations such as S101 and S102 are used in this document for the purpose of more clearly and concisely describing the corresponding content, and do not constitute a substantial limitation on the order. In specific implementation, those skilled in the art may execute S102 first and then S101, etc., but these should all be within the protection scope of this application.

[0025] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0026] See Figure 1 This is a schematic flowchart illustrating a heating control method for an air conditioning system provided in an embodiment of this application. Figure 1As shown, the air conditioning system of this application includes a compressor and a PTC (Positive Temperature Coefficient) heater, and the heating control method of the air conditioning system includes the following steps: Step S101: In response to the heating request, enter the heat pump heating mode; It should be noted that, as Figure 2 As shown, the air conditioning system in this embodiment includes an air conditioning unit, a PTC water circuit, and a heat pump refrigerant circuit. The air conditioning unit includes a blower and a Hex (Heat Exchanger) outlet air temperature sensor T3. The PTC water circuit includes a PTC heater, a water pump, and a heat exchanger. The heat pump refrigerant circuit includes a compressor, a condenser, an expansion valve, an evaporator, a condenser outlet refrigerant pressure sensor P1, a compressor outlet temperature sensor T1, a compressor inlet temperature sensor T2, and a pressure sensor P3.

[0027] Specifically, a heating request will be generated when the driver or passenger performs the following operations on the air conditioning control panel: Turning the temperature setting knob or button to a high-temperature zone, for example, above 26°C; when the system detects that the set temperature is significantly higher than the current interior temperature, it will determine that heating is needed; pressing the defrost / defog button; the windshield defrost mode requires hot air to quickly evaporate fog and water droplets on the glass, and pressing the defrost / defog button will trigger a high-priority heating request; turning off the A / C (cooling) switch and raising the temperature; if it was previously in cooling mode, manually turning off cooling and raising the temperature also clearly indicates a need for heating. Upon receiving a heating request, the system determines whether to enter heat pump heating mode based on the ambient temperature obtained from the outside temperature sensor. If the ambient temperature is within the heat pump's allowable operating temperature range, the system enters heat pump heating mode, meaning the heat pump is activated solely for heating.

[0028] Step S102: When the preset PTC reheating activation conditions are met, enter the dual heating mode; Here, after the heat pump is started to heat, it is determined whether the preset PTC heat replenishment activation conditions are met. If the preset PTC heat replenishment activation conditions are met, the dual heating mode is entered, that is, the heat pump and PTC work at the same time.

[0029] Step S103: In dual heating mode, the compressor speed is controlled according to the refrigerant high pressure saturation temperature, and the power or outlet water temperature of the PTC heater is controlled according to the real-time warm air core outlet air temperature. Here, in dual heating mode, the compressor and PTC use different control targets. The compressor adjusts its speed according to the high-pressure saturation temperature of the refrigerant, while the PTC heater adjusts its power or outlet water temperature according to the real-time outlet air temperature (Hex air temperature) of the heater core. This avoids mutual interference and prevents the PTC heater from heating the interior to the target temperature first, thus preventing the heat pump from not reaching its maximum heating capacity and ensuring optimal heating efficiency. The goal is to meet the heating needs of the passenger compartment as quickly as possible while automatically achieving a high proportion of heat pump heating, reducing the proportion of PTC heating, and lowering heating energy consumption.

[0030] Step S104: When the real-time outlet air temperature of the warm air core reaches the target outlet air temperature of the warm air core and the power of the PTC heater is lower than the preset PTC power threshold, exit the dual heating mode.

[0031] Here, the switching timing from dual heating mode to heat pump heating mode is determined based on the power of the PTC heater. When the interior temperature reaches the target temperature (i.e., the real-time heater core outlet air temperature reaches the target heater core outlet air temperature), and heating and heat dissipation approach equilibrium, if the PTC heater power gradually approaches 0 or falls below the preset PTC power threshold, and the compressor's heating capacity can maintain the interior temperature, then the PTC can be turned off, exiting the dual heating mode. In this way, the switching process of heating modes is continuous and linear, and the PTC heater power is adaptively adjusted, avoiding problems such as compressor load fluctuations and interior temperature fluctuations.

[0032] The technical solution of this application, in dual heating mode, controls the compressor speed according to the refrigerant high-pressure saturation temperature, and controls the power or outlet water temperature of the PTC heater according to the real-time heater core outlet air temperature. When the real-time heater core outlet air temperature reaches the target heater core outlet air temperature and the power of the PTC heater is lower than the preset PTC power threshold, the dual heating mode is exited. While quickly meeting the heating needs of the passenger compartment, it can also automatically achieve a high proportion of heat pump heating, reduce the proportion of PTC heating, reduce heating energy consumption, and the switching process of heating mode is linear and smooth with small fluctuations in compressor load and vehicle interior temperature.

[0033] In one embodiment, the method further includes at least one of the following: If the compressor speed is greater than the difference between the maximum allowable speed and the preset offset value, and the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature is greater than the first preset threshold and continues for the first preset duration, then the preset PTC heat replenishment activation condition is met. If the ambient temperature is lower than the preset temperature threshold, the required heating power is greater than the preset heating power threshold, and the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature is greater than the second preset threshold and continues for the second preset duration, then the preset PTC supplementary heating activation conditions are met. If the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature is greater than the third preset threshold, and the compressor speed is less than the preset speed threshold and continues for the third preset duration, then the preset PTC heat replenishment activation condition is met.

[0034] Specifically, PTC heating can be activated if any of the following conditions are met: (1) The compressor speed is greater than the compressor maximum allowable speed n_max minus the preset offset value n_offset1 and continues for a first preset duration t1, and the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature is greater than the first preset threshold Te1 and continues for a first preset duration t1; (2) The ambient temperature is lower than the preset temperature threshold Te_amblow, the required heating power Pw_req is greater than the preset heating power threshold Pw_offset1, and the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature is greater than the second preset threshold Te2 and continues for the second preset duration t2. (3) The difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature is greater than the third preset threshold Te3 and continues for the third preset duration t3, and the compressor speed is limited (e.g., noise limit) to less than the preset speed threshold n_limit and continues for the third preset duration t3.

[0035] The first preset duration, the second preset duration, the third preset duration, the first preset threshold, the second preset threshold, and the third preset threshold can all be set according to actual application needs.

[0036] In one embodiment, under dual heating mode, the compressor speed is controlled based on the refrigerant high-pressure saturation temperature, and the power or outlet water temperature of the PTC heater is controlled based on the real-time outlet air temperature of the warm air core, including: In dual heating mode, the compressor speed is adjusted according to the difference between the refrigerant high-pressure saturation temperature and the target high-pressure saturation temperature, and the power or outlet water temperature of the PTC heater is adjusted according to the difference between the target heating core outlet air temperature and the real-time heating core outlet air temperature.

[0037] Here, if PTC heating is activated, the water pump is turned on first, and then the compressor speed is adjusted according to the difference between the refrigerant high-pressure saturation temperature and the target high-pressure saturation temperature. The power of the PTC heater or the outlet water temperature is adjusted according to the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature.

[0038] In one embodiment, adjusting the compressor speed based on the difference between the refrigerant high-pressure saturation temperature and the target high-pressure saturation temperature includes: The target high-pressure saturation temperature is calculated based on the target outlet air temperature of the heating core and the first preset compensation value. The first preset compensation value increases as the difference between the target outlet air temperature of the heating core and the real-time outlet air temperature of the heating core increases. The compressor speed is controlled by PID based on the difference between the refrigerant high-pressure saturation temperature and the target high-pressure saturation temperature. The first feedforward term of the PID control is determined based on the power of the PTC heater.

[0039] Specifically, the refrigerant high-pressure saturation temperature Te_highside is calculated based on the refrigerant pressure sensor P1 at the condenser outlet. The target high-pressure saturation temperature Te_hightarget = target heater core outlet air temperature Te_hextarget + first preset compensation value Te_offset1. The first preset compensation value Te_offset1 is controlled based on the deviation between the target heater core outlet air temperature and the real-time heater core outlet air temperature; the larger the deviation, the greater the compensation. The compressor speed is controlled by PID based on the deviation Err1 between the refrigerant high-pressure saturation temperature Te_highside and the target high-pressure saturation temperature Te_hightarget. The first feedforward term FF1 of the PID control is looked up from a table based on the power of the PTC heater; the larger the power, the larger the feedforward.

[0040] In one embodiment, the compressor speed is controlled by PID based on the difference between the refrigerant high-pressure saturation temperature and the target high-pressure saturation temperature, and the method further includes: The proportional gain and integral gain of the PID control are determined based on the difference between the high-pressure saturation temperature of the refrigerant and the target high-pressure saturation temperature. The larger the difference, the larger the proportional gain and integral gain.

[0041] Specifically, the proportional term P_gain1 = proportional coefficient P_factor1 * Err1, where P_factor1 is looked up in a table based on Err1; the larger Err1 is, the larger P_factor1 is. The integral term I_gain1 = integral coefficient I_factor1 * Err1 is accumulated in each calculation cycle, where I_factor1 is looked up in a table based on Err1; the larger Err1 is, the larger I_factor1 is. The compressor's requested speed n_req = FF1 + P_gain1 + I_gain1.

[0042] In one embodiment, adjusting the power or outlet water temperature of the PTC heater based on the difference between the target outlet air temperature of the heating air core and the real-time outlet air temperature of the heating air core includes: Based on the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature, the power or outlet water temperature of the PTC heater is controlled by PID. The second feedforward term of the PID control is determined based on the target warm air core outlet temperature and the second preset compensation value, which is determined based on the blower air volume and the ambient temperature.

[0043] Specifically, based on the deviation Err2 between the target warm air core outlet temperature Te_hextarget and the real-time warm air core outlet temperature Te_hexact, PID control is applied to the power or outlet water temperature of the PTC heater. The PTC requested outlet water temperature Te_ptctarget or PTC requested power is calculated. The second feedforward term FF2 = Te_hextarget + the second preset compensation value Te_offset2. The second preset compensation value Te_offset2 is determined by looking up a table based on the blower airflow and ambient temperature; the larger the blower airflow and the lower the ambient temperature, the larger Te_offset2. The proportional term P_gain2 = proportional coefficient P_factor2 * Err2. The proportional coefficient P_factor2 is determined by looking up a table based on Err2; the larger Err2, the larger the coefficient. The integral term I_gain2 = integral coefficient I_factor2 * Err2 is accumulated in each calculation cycle. Te_ptctarget = FF2 + P_gain2 + I_gain2.

[0044] In one embodiment, after exiting the dual heating mode when the real-time heating core outlet temperature reaches the target heating core outlet temperature and the PTC heater power is lower than the preset PTC power threshold, the method further includes: The compressor speed is adjusted based on the difference between the target outlet air temperature of the heater core and the real-time outlet air temperature of the heater core.

[0045] Specifically, if PTC heat replenishment is discontinued, the compressor speed is adjusted based on the deviation Err2 between the target warm air core outlet temperature Te_hextarget and the real-time warm air core outlet temperature Te_hexact.

[0046] In one embodiment, adjusting the compressor speed based on the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature includes: The compressor speed is controlled by PID based on the difference between the target outlet air temperature of the heater core and the real-time outlet air temperature of the heater core. The third feedforward term of the PID control is determined based on the blower air volume and the ambient temperature.

[0047] Specifically, if PTC heat replenishment is discontinued, PID control is applied to the compressor based on the deviation Err2 between the target warm air core outlet temperature Te_hextarget and the real-time warm air core outlet temperature Te_hexact. The compressor's requested speed n_req is calculated. The third feedforward term FF3 is determined by looking up a table based on the blower airflow and ambient temperature. The proportional term P_gain3 = proportional coefficient P_factor3 * Err2, with P_gain3 determined by looking up Err2; the larger Err2 is, the larger P_gain3 is. The integral term I_gain3 = integral coefficient I_factor3 * Err2, accumulated over each calculation cycle; the integral coefficient I_factor3 is determined by looking up Err2; the larger Err2 is, the larger I_factor3 is. Therefore, n_req = FF3 + P_gain3 + I_gain3.

[0048] Based on the same inventive concept as the foregoing embodiments, this application provides an electronic device, such as... Figure 3 As shown, the electronic device includes: a processor 110 and a memory 111 for storing computer programs capable of running on the processor 110; wherein, Figure 3 The processor 110 shown in the diagram does not refer to a single processor 110, but rather to the positional relationship of the processor 110 relative to other devices. In practical applications, there can be one or more processors 110; similarly, Figure 3 The memory 111 shown in the diagram has the same meaning, that is, it is only used to indicate the positional relationship of memory 111 relative to other devices. In practical applications, there can be one or more memories 111. When the processor 110 runs the computer program, it implements the above-described heating control method for the air conditioning system.

[0049] The electronic device may also include at least one network interface 112. The various components of the electronic device are coupled together via a bus system 113. It is understood that the bus system 113 is used to implement communication between these components. In addition to a data bus, the bus system 113 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 3 The general designated all buses as Bus System 113.

[0050] The memory 111 can be volatile memory or non-volatile memory, or both. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM); the magnetic surface memory can be disk storage or magnetic tape storage. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memory 111 described in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0051] The memory 111 in this embodiment is used to store various types of data to support the operation of the electronic device. Examples of this data include: any computer programs used to operate on the electronic device, such as operating systems and applications; contact data; phonebook data; messages; pictures; videos, etc. The operating system includes various system programs, such as the framework layer, core library layer, driver layer, etc., used to implement various basic services and handle hardware-based tasks. Applications can include various applications, such as media players, browsers, etc., used to implement various application services. Here, the program implementing the method of this embodiment can be included in the application.

[0052] Based on the same inventive concept as the foregoing embodiments, this embodiment also provides a computer storage medium storing a computer program. The computer storage medium can be a magnetic random access memory (FRAM), a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM), etc.; it can also be various devices including one or any combination of the above-mentioned memories, such as mobile phones, computers, tablet devices, personal digital assistants, etc. When the computer program stored in the computer storage medium is executed by a processor, it implements the above-described heating control method for an air conditioning system. For the specific steps implemented when the computer program is executed by the processor, please refer to [link to relevant documentation]. Figure 1 The description of the illustrated embodiments will not be repeated here.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] In this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0055] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the appended claims.

Claims

1. A heating control method for an air conditioning system, the air conditioning system comprising a compressor and a PTC heater, characterized in that, Includes the following steps: In response to a heating request, it enters heat pump heating mode; When the preset PTC reheating activation conditions are met, it enters dual heating mode; In the dual heating mode, the compressor speed is controlled according to the refrigerant high-pressure saturation temperature, and the power or outlet water temperature of the PTC heater is controlled according to the real-time warm air core outlet air temperature. When the real-time outlet air temperature of the heating core reaches the target outlet air temperature of the heating core, and the power of the PTC heater is lower than the preset PTC power threshold, the dual heating mode is exited.

2. The heating control method for an air conditioning system according to claim 1, characterized in that, The method further includes at least one of the following: If the compressor speed is greater than the difference between the maximum allowable speed and the preset offset value, and the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature is greater than the first preset threshold and continues for the first preset duration, then the preset PTC heat replenishment activation condition is met. If the ambient temperature is lower than the preset temperature threshold, the required heating power is greater than the preset heating power threshold, and the difference between the outlet air temperature of the target warm air core and the outlet air temperature of the real-time warm air core is greater than the second preset threshold and continues for the second preset duration, then the preset PTC supplementary heating activation condition is met. If the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature is greater than a third preset threshold, and the compressor speed is less than a preset speed threshold for a third preset duration, then the preset PTC heat replenishment activation condition is met.

3. The heating control method for an air conditioning system according to claim 1, characterized in that, In the dual heating mode, the compressor speed is controlled based on the refrigerant high-pressure saturation temperature, and the power or outlet water temperature of the PTC heater is controlled based on the real-time warm air core outlet temperature, including: In the dual heating mode, the compressor speed is adjusted according to the difference between the refrigerant high-pressure saturation temperature and the target high-pressure saturation temperature, and the power or outlet water temperature of the PTC heater is adjusted according to the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature.

4. The heating control method for an air conditioning system according to claim 3, characterized in that, The step of adjusting the compressor speed based on the difference between the refrigerant high-pressure saturation temperature and the target high-pressure saturation temperature includes: The target high-pressure saturation temperature is calculated based on the target outlet air temperature of the heating core and the first preset compensation value, wherein the first preset compensation value increases as the difference between the target outlet air temperature of the heating core and the real-time outlet air temperature of the heating core increases. The compressor speed is controlled by PID based on the difference between the refrigerant high-pressure saturation temperature and the target high-pressure saturation temperature, wherein the first feedforward term of the PID control is determined based on the power of the PTC heater.

5. The heating control method for an air conditioning system according to claim 4, characterized in that, The step of performing PID control on the compressor speed based on the difference between the refrigerant high-pressure saturation temperature and the target high-pressure saturation temperature further includes: The proportional gain and integral gain of the PID control are determined based on the difference between the refrigerant high-pressure saturation temperature and the target high-pressure saturation temperature. The larger the difference, the larger the proportional gain and the integral gain.

6. The heating control method for an air conditioning system according to claim 3, characterized in that, The step of adjusting the power or outlet water temperature of the PTC heater based on the difference between the target outlet air temperature of the warm air core and the real-time outlet air temperature of the warm air core includes: Based on the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature, the power or outlet water temperature of the PTC heater is controlled by PID. The second feedforward term of the PID control is determined based on the target warm air core outlet temperature and a second preset compensation value, which is determined based on the blower air volume and ambient temperature.

7. The heating control method for an air conditioning system according to claim 1, characterized in that, After exiting the dual heating mode when the real-time heating core outlet air temperature reaches the target heating core outlet air temperature and the power of the PTC heater is lower than the preset PTC power threshold, the method further includes: The compressor speed is adjusted based on the difference between the target heater core outlet temperature and the real-time heater core outlet temperature.

8. The heating control method for an air conditioning system according to claim 7, characterized in that, The step of adjusting the compressor speed based on the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature includes: The compressor speed is controlled by PID based on the difference between the target warm air core outlet temperature and the real-time warm air core outlet temperature. The third feedforward term of the PID control is determined based on the blower air volume and the ambient temperature.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the heating control method for an air conditioning system as described in any one of claims 1 to 8.

10. A computer storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the heating control method for the air conditioning system as described in any one of claims 1 to 8.

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