An automobile air conditioner control method, device, storage medium and equipment

Abstract

The application provides an automobile air conditioner control method, device, storage medium and equipment. In the method, an outside temperature and a target air outlet temperature are acquired, the operation mode of the air conditioner is controlled according to the outside temperature and the target air outlet temperature, and when the operation mode of the air conditioner is a ventilation mode, the circulating air door opening degree of the air conditioner is adjusted according to the target air outlet temperature and an actual air outlet temperature. In this way, when the outside temperature is high and the user has a heating demand, the heat provided by the outside temperature can be fully utilized to increase the air outlet temperature of the air conditioner, thereby effectively reducing the enabling frequency of the PTC heater and saving energy consumption.

Description

Technical Field

[0001] This application relates to the field of automotive air conditioning technology, and more specifically, to an automotive air conditioning control method, device, storage medium, and equipment. Background Technology

[0002] With the rapid development of automotive technology, cars have become an important means of transportation in people's daily lives. Car air conditioning is a crucial component, and its heating function makes passengers more comfortable in winter. Currently, electric vehicle air conditioning systems generally use PTC (Positive Temperature Coefficient) heaters as a heat source to meet users' heating needs. However, the PTC heater needs to be activated every time heating is activated, leading to relatively high energy consumption. Summary of the Invention

[0003] The purpose of this application is to provide an automotive air conditioning control method, device, storage medium, and equipment, which aims to solve the problem of high energy consumption in the heating methods of automotive air conditioning in related technologies.

[0004] In a first aspect, this application provides an automotive air conditioning control method, comprising: acquiring the outside temperature and a target air outlet temperature; the target air outlet temperature being determined based on current environmental parameters and a user-set temperature; controlling the operating mode of the air conditioner according to the outside temperature and the target air outlet temperature; and adjusting the opening of the air conditioner's recirculation damper according to the target air outlet temperature and the actual air outlet temperature when the air conditioner's operating mode is ventilation mode.

[0005] In the above implementation process, the outside temperature and target air outlet temperature are acquired, and the air conditioning operation mode is controlled based on these temperatures. Furthermore, when the air conditioning is in ventilation mode, the opening of the air conditioning's recirculation damper is adjusted based on the target and actual air outlet temperatures. Thus, when the outside temperature is high and the user has heating needs, the heat provided by the outside temperature can be fully utilized to increase the air conditioning's outlet temperature, thereby effectively reducing the activation frequency of the PTC heater and saving energy.

[0006] Furthermore, in some examples, the target air outlet temperature is obtained by querying a target table; the target table records the target air outlet temperature corresponding to different environmental parameters and different user-set temperatures; the target table is established by testing the air outlet temperature achieved by the air conditioner under various environmental parameters to meet the user-set temperatures.

[0007] In the above implementation process, a specific method for obtaining the target air outlet temperature is provided, namely, determining a suitable target air outlet temperature through experimental calibration based on environmental parameters and user-set temperature, and thereby formulating a target table.

[0008] Furthermore, in some examples, controlling the air conditioner's operating mode based on the outside temperature and the target air outlet temperature includes: if the outside temperature is less than zero degrees Celsius, controlling the air conditioner's operating mode to be heating mode; if the outside temperature is greater than or equal to zero degrees Celsius, controlling the air conditioner's operating mode to be heating mode when the target air outlet temperature is greater than the first preset value, controlling the air conditioner's operating mode to be cooling mode when the target air outlet temperature is less than the second preset value, and controlling the air conditioner's operating mode to be ventilation mode when the target air outlet temperature is greater than or equal to the second preset value and less than or equal to the first preset value.

[0009] In the above implementation process, a specific method is provided to select the air conditioning operation mode based on the outside temperature and the target air outlet temperature, so as to make full use of the heat provided by the outside temperature to meet the user's heating needs and reduce the activation of the PTC heater.

[0010] Furthermore, in some examples, the first preset value is equal to the outside temperature; when the outside temperature is between 0 and 30°C, the second preset value is two-thirds of the outside temperature; when the outside temperature is greater than 30°C, the second preset value is 20°C.

[0011] In the above implementation process, an optional setting method for the first preset value and the second preset value is provided.

[0012] Furthermore, in some examples, adjusting the air circulation damper opening of the air conditioner based on the target air outlet temperature and the actual air outlet temperature includes: adjusting the air circulation damper opening of the air conditioner using a positional PI control algorithm; the control deviation of the positional PI control algorithm is the difference between the target air outlet temperature and the actual air outlet temperature, and the output value is the air circulation damper opening of the air conditioner.

[0013] In the above implementation process, a positional PI control algorithm is used to adjust the opening of the air conditioning circulation damper so that the outlet air temperature can reach the user's required temperature, ensuring the comfort of the passenger cabin without increasing hardware costs.

[0014] Furthermore, in some examples, the method further includes: switching the operating mode of the air conditioner when the opening of the circulating damper reaches the upper or lower limit and the absolute value of the control deviation is greater than a third preset value.

[0015] In the above implementation process, when the opening of the circulating damper reaches the upper or lower limit and the actual air outlet temperature cannot reach the target, the calculation of the position-type PI control algorithm is exited, and the operation mode of the air conditioner is switched to meet the actual needs of the user.

[0016] Furthermore, in some examples, the step of switching the air conditioner's operating mode when the opening of the circulating damper reaches the upper or lower limit and the absolute value of the control deviation is greater than a third preset value includes: when the opening of the circulating damper is 100% and the difference between the target air outlet temperature and the actual air outlet temperature is greater than a third preset value, switching the air conditioner's operating mode from ventilation mode to heating mode; and when the opening of the circulating damper is 0 and the difference between the actual air outlet temperature and the target air outlet temperature is greater than a third preset value, switching the air conditioner's operating mode from ventilation mode to cooling mode.

[0017] In the above implementation process, specific methods are provided for exiting the position-based PI control algorithm and switching the air conditioner's operating mode to improve the user experience.

[0018] Secondly, this application provides an automotive air conditioning control device, comprising: an acquisition module for acquiring the outside temperature and a target air outlet temperature; the target air outlet temperature is determined based on current environmental parameters and a user-set temperature; a control module for controlling the operating mode of the air conditioner according to the outside temperature and the target air outlet temperature; and an adjustment module for adjusting the opening of the air conditioner's recirculation damper according to the target air outlet temperature and the actual air outlet temperature when the air conditioner's operating mode is ventilation mode.

[0019] Thirdly, this application provides an electronic device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the steps of the method described in any of the first aspects.

[0020] Fourthly, this application provides a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method described in any of the first aspects.

[0021] Fifthly, this application provides a computer program product that, when run on a computer, causes the computer to perform the method described in any of the first aspects.

[0022] Other features and advantages disclosed in this application will be set forth in the following description, or some features and advantages may be inferred from the description or determined without doubt, or may be learned by practicing the above-described technology disclosed in this application.

[0023] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application 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.

[0025] Figure 1 A flowchart of an automotive air conditioning control method provided in this application embodiment;

[0026] Figure 2 A schematic diagram illustrating the workflow of a cycle-based energy-saving air conditioning control scheme provided in this application embodiment;

[0027] Figure 3 A schematic diagram illustrating the system operation mode selection based on outside temperature and target air outlet temperature, provided for an embodiment of this application;

[0028] Figure 4 A block diagram of an automotive air conditioning control device provided in an embodiment of this application;

[0029] Figure 5 This is a structural block diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0031] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] As described in the background section, the heating methods of automotive air conditioners in related technologies suffer from high energy consumption. Therefore, this application provides an automotive air conditioning control scheme to solve the aforementioned problem.

[0033] The embodiments of this application will be described below:

[0034] like Figure 1 As shown, Figure 1This is a flowchart illustrating an automotive air conditioning control method provided in an embodiment of this application. The method can be applied to the air conditioning control system of an electric vehicle, or to the vehicle control unit (VCU) of an electric vehicle.

[0035] The method includes:

[0036] Step 101: Obtain the outside temperature and the target air outlet temperature; the target air outlet temperature is determined based on the current environmental parameters and the user-set temperature.

[0037] The outside temperature mentioned in this step refers to the air temperature outside the vehicle, which can be detected by an outdoor temperature sensor. The target air outlet temperature mentioned in this step refers to the target value of the car's air conditioning outlet temperature. This parameter is determined based on current environmental parameters and the user-set temperature. These environmental parameters can include the outside temperature and weather factors (such as sunshine, rain, etc.). These weather factors can be detected by sensors on the vehicle or obtained from relevant in-vehicle applications based on the vehicle's location. The user-set temperature is the air conditioning temperature set by the user.

[0038] In some embodiments, the target air outlet temperature can be obtained by querying a target table. The target table records target air outlet temperatures corresponding to different environmental parameters and different user-set temperatures. The target table is established by testing the air outlet temperature achieved by the air conditioner under various environmental parameters to meet the user-set temperatures. In other words, a suitable target air outlet temperature can be obtained through experimental calibration based on environmental parameters and user-set temperatures. Specifically, under different environmental parameter conditions, the compressor, PTC, and recirculation damper opening of the air conditioner are adjusted to make the air outlet temperature reach the user-set temperature as close as possible. When the air outlet temperature reaches the user-set temperature, the target air outlet temperature is determined as that user-set temperature. When the air outlet temperature cannot reach the user-set temperature, the air outlet temperature closest to that user-set temperature is determined as the target air outlet temperature. Based on the determined target air outlet temperature, a target table is established. Thus, during air conditioner use, the air conditioning control system can determine query conditions based on the current environmental parameters and user-set temperature, and query the target table to obtain the target air outlet temperature.

[0039] Step 102: Control the air conditioning operation mode according to the outside temperature and the target air outlet temperature;

[0040] In this embodiment, the air conditioning system operation mode is selected based on the outside temperature and the target air outlet. When the outside temperature is high and the user has heating needs, the heat provided by the ambient temperature can be fully utilized to increase the air outlet temperature without activating the PTC heater, thereby meeting the user's needs and achieving energy saving.

[0041] Specifically, in some embodiments, this step may include: if the outside temperature is less than zero degrees Celsius, controlling the air conditioner to operate in heating mode; if the outside temperature is greater than or equal to zero degrees Celsius, controlling the air conditioner to operate in heating mode when the target air outlet temperature is greater than the first preset value; controlling the air conditioner to operate in cooling mode when the target air outlet temperature is less than the second preset value; and controlling the air conditioner to operate in ventilation mode when the target air outlet temperature is greater than or equal to the second preset value and less than or equal to the first preset value. In other words, when the outside temperature is less than 0°C, it indicates a low ambient temperature, and the air conditioner is controlled in heating mode to meet the user's heating needs; when the outside temperature is greater than or equal to 0°C, the air conditioner's operating mode is selected based on a comparison of the target air outlet temperature with the first and second preset values. Specifically, assuming the first preset value is T... curve1 The second preset value is T. curve2 If the target outlet air temperature is greater than T curve1 This indicates that the user requires a higher outlet air temperature, therefore the air conditioner is set to heating mode. If the target outlet air temperature is <T... curve2 This indicates that the user requires a lower outlet air temperature, therefore the air conditioner is set to cooling mode. If T... curve2 ≤Target outlet air temperature≤T curve1 The air conditioning is controlled to operate in ventilation mode, mixing the air inside and outside the vehicle to meet the user's desired air temperature. This fully utilizes the heat provided by the outside temperature to meet the user's heating needs, reducing the need for the PTC heater.

[0042] Furthermore, the aforementioned first and second preset values ​​can be determined based on the outside temperature. Experiments have shown that the first preset value can be equal to the outside temperature, while the second preset value can be two-thirds of the outside temperature when the outside temperature is between 0 and 30°C, and can be 20°C when the outside temperature is above 30°C. This setting allows for the appropriate selection of the air conditioning system's operating mode. Of course, in other embodiments, the first and second preset values ​​can also be set differently according to the specific needs of the scenario.

[0043] Step 103: When the air conditioner is in ventilation mode, adjust the opening of the air conditioner's recirculation damper according to the target air outlet temperature and the actual air outlet temperature.

[0044] In this embodiment, when the air conditioner is in ventilation mode, the opening of the circulating air damper is adjusted to achieve different ratios of mixing of indoor and outdoor air, and the air temperature is controlled to reach the user's required temperature, ensuring the comfort of the passenger cabin without increasing hardware costs.

[0045] Specifically, in some embodiments, adjusting the air conditioner's recirculation damper opening based on the target outlet air temperature and the actual outlet air temperature mentioned in this step may include: adjusting the air conditioner's recirculation damper opening using a positional PI control algorithm; the control deviation of the positional PI control algorithm is the difference between the target outlet air temperature and the actual outlet air temperature, and the output value is the air conditioner's recirculation damper opening. The positional PI (Proportional-Integral) control algorithm is a closed-loop control algorithm, which can be described by the following expression:

[0046]

[0047] Where y(k) is the output of the positional PI control algorithm, which in this embodiment can be the opening degree of the air conditioner's recirculation damper; e(k) is the control deviation, which in this embodiment can be the difference between the target outlet air temperature and the actual outlet air temperature; K p K is the coefficient of the proportional element. i K is the coefficient of the integral element, optionally K p It can be 2, K i It can be 0.1. The positional PI control algorithm adjusts the opening of the recirculation damper to keep the control deviation within a preset range as close as possible to the target air outlet temperature. For example, when the control deviation is greater than zero, it indicates that the actual air outlet temperature is low, and the algorithm will increase the external recirculation ratio to mix more hot outside air; conversely, when the control deviation is less than zero, it indicates that the actual air outlet temperature is high, and the algorithm will decrease the external recirculation ratio to reduce the mixing of outside air.

[0048] In addition, the dead zone of this position-type PI control algorithm can be set to 1℃, that is, when the control deviation is within ±1℃, the PI control stops calculating and maintains the current control output value.

[0049] Furthermore, in some embodiments, the above method may further include: switching the operating mode of the air conditioner when the opening of the circulating damper reaches the upper or lower limit and the absolute value of the control deviation is greater than a third preset value. That is, when the opening of the circulating damper reaches the upper or lower limit and the actual outlet air temperature cannot reach the target, the calculation of the position-based PI control algorithm is exited, and the operating mode of the air conditioner is switched to meet the actual needs of the user. Optionally, this switching method may include: when the opening of the circulating damper is 100% and the difference between the target outlet air temperature and the actual outlet air temperature is greater than a third preset value, switching the operating mode of the air conditioner from ventilation mode to heating mode; when the opening of the circulating damper is 0 and the difference between the actual outlet air temperature and the target outlet air temperature is greater than a third preset value, switching the operating mode of the air conditioner from ventilation mode to cooling mode. In other words, when the recirculation damper opening is 100% and the actual air outlet temperature is less than (target air outlet temperature - third preset value), it indicates that even after maximizing the mixing of outside air, the user's heating needs cannot be met. At this point, the system mode switches from ventilation mode to heating mode. When the recirculation damper opening is 0% and the actual air outlet temperature is greater than (target air outlet temperature + third preset value), it indicates that even after minimal mixing of outside air, the air outlet temperature is still higher than the user's desired temperature. At this point, the system mode switches from ventilation mode to cooling mode. Thus, by introducing a closed-loop control algorithm for air outlet temperature, the air temperature can be controlled to reach the user's desired temperature, improving the user experience. The third preset value can be 3℃. Of course, in other embodiments, the third preset value can also be set differently according to the specific needs of the scenario; this application does not impose any restrictions on this.

[0050] In this embodiment, the outside temperature and target air outlet temperature are acquired, and the air conditioning operation mode is controlled based on these temperatures. Furthermore, when the air conditioning is in ventilation mode, the opening of the air conditioning's recirculation damper is adjusted based on the target and actual air outlet temperatures. Thus, when the outside temperature is high and the user has heating needs, the heat provided by the outside temperature can be fully utilized to increase the air conditioning's outlet temperature, thereby effectively reducing the activation frequency of the PTC heater and saving energy.

[0051] To provide a more detailed explanation of the solution in this application, a specific embodiment is described below:

[0052] This embodiment provides a cycle-based energy-saving air conditioning control scheme. The workflow of this embodiment is as follows: Figure 2 As shown, it includes:

[0053] S201, Obtain the outside temperature and target air outlet temperature;

[0054] S202. Determine whether the outside temperature is greater than or equal to 0 degrees Celsius, and whether the target air outlet temperature meets the requirement of being greater than or equal to the upper limit T of the air outlet temperature in cooling mode. curve2 And less than or equal to the lower limit T of the outlet air temperature in heating mode curve1 If yes, execute S204; otherwise, execute S203.

[0055] Among them, T curve1 and T curve2 You can search Figure 3 The system operation mode selection diagram shown is obtained from this diagram. In the system operation mode selection diagram, curve 31 represents the lower limit T of the air outlet temperature of the heating mode corresponding to each outside temperature of the vehicle. curve1 Curve 32 represents the upper limit T of the air outlet temperature for each vehicle's outside temperature corresponding to the cooling mode. curve2 The curve, when used, can be obtained by linear interpolation based on the outside temperature of the vehicle to get T. curve1 and T curve2 The value;

[0056] S203. Determine whether the outside temperature is greater than or equal to 0 degrees Celsius, and whether the target air outlet temperature is less than the upper limit T of the air outlet temperature in cooling mode. curve2 If yes, execute S209; otherwise, execute S208.

[0057] S204. Control the air conditioning system to enter ventilation mode;

[0058] S205. Turn off the compressor, turn off the PTC, and use the circulating damper to control the actual outlet air temperature in a closed loop.

[0059] Specifically, a positional PI control algorithm is used to control the opening of the circulating damper. The control deviation PiErr = target outlet air temperature - actual outlet air temperature; the dead zone = 1℃; and the coefficient K of the proportional element... p =2, the coefficient K of the integral element i =0.1; the control range is upper limit 100%, lower limit 0%. When PiErr is within ±1℃, the PI control stops calculating and maintains the current control output value;

[0060] S206. Determine whether the circulating damper has reached 100% and whether the actual outlet air temperature is less than the difference between the target outlet air temperature and 3℃. If yes, execute S208; otherwise, execute S207.

[0061] S207. Determine whether the circulating damper has reached 0% and whether the actual outlet air temperature is greater than the target outlet air temperature plus 3℃. If yes, execute S209; otherwise, execute S210.

[0062] S208, Control the air conditioning system to switch to heating mode;

[0063] S209. Control the air conditioning system to switch to cooling mode;

[0064] S210. Control the air conditioning system to maintain ventilation mode.

[0065] This embodiment optimizes the air conditioning system's operating mode by selecting different operating modes under varying outside temperatures and target air outlet temperatures. In ventilation mode, it fully utilizes the heat provided by the outside temperature to meet the user's heating needs, thus effectively reducing the need for PTC heaters and achieving energy savings. Simultaneously, by introducing a closed-loop control algorithm for air outlet temperature, the system ensures that the air temperature meets the user's requirements, guaranteeing passenger cabin comfort without increasing hardware costs.

[0066] Corresponding to the embodiments of the aforementioned methods, this application also provides embodiments of an automotive air conditioning control device and a terminal thereof:

[0067] like Figure 4 As shown, Figure 4 This is a block diagram of an automotive air conditioning control device provided in an embodiment of this application. The device includes:

[0068] The acquisition module 41 is used to acquire the outside temperature and the target air outlet temperature; the target air outlet temperature is determined based on the current environmental parameters and the user-set temperature.

[0069] Control module 42 is used to control the operating mode of the air conditioner based on the outside temperature and the target air outlet temperature;

[0070] The adjustment module 43 is used to adjust the opening of the air conditioner's circulating damper according to the target outlet air temperature and the actual outlet air temperature when the air conditioner is in ventilation mode.

[0071] The specific implementation process of the functions and roles of each module in the above device can be found in the implementation process of the corresponding steps in the above method, and will not be repeated here.

[0072] This application also provides an electronic device, please refer to [link to application]. Figure 5 , Figure 5 This is a structural block diagram of an electronic device provided in an embodiment of this application. The electronic device may include a processor 510, a communication interface 520, a memory 530, and at least one communication bus 540. The communication bus 540 is used to enable direct communication between these components. In this embodiment, the communication interface 520 of the electronic device is used for signaling or data communication with other node devices. The processor 510 may be an integrated circuit chip with signal processing capabilities.

[0073] The processor 510 described above can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor, or the processor 510 can be any conventional processor.

[0074] The memory 530 may be, but is not limited to, random access memory (RAM), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), etc. The memory 530 stores computer-readable instructions. When these computer-readable instructions are executed by the processor 510, the electronic device can perform the aforementioned operations. Figure 1 The various steps involved in the method implementation examples.

[0075] Alternatively, the electronic device may also include a storage controller and an input / output unit.

[0076] The memory 530, storage controller, processor 510, peripheral interface, and input / output unit are electrically connected directly or indirectly to achieve data transmission or interaction. For example, these components can be electrically connected to each other through one or more communication buses 540. The processor 510 is used to execute executable modules stored in the memory 530, such as software function modules or computer programs included in electronic devices.

[0077] The input / output unit is used to provide users with the ability to create tasks and to set optional start periods or preset execution times for those tasks, thereby enabling user-server interaction. The input / output unit may be, but is not limited to, a mouse and keyboard.

[0078] Understandable. Figure 5 The structure shown is for illustrative purposes only; the electronic device may also include components that are more advanced than those shown. Figure 5 The more or fewer components shown, or having the same Figure 5 The different configurations shown. Figure 5 The components shown can be implemented using hardware, software, or a combination thereof.

[0079] This application also provides a storage medium storing instructions. When the instructions are run on a computer, the computer program is executed by a processor to implement the method described in the method embodiment. To avoid repetition, the method will not be described again here.

[0080] This application also provides a computer program product that, when run on a computer, causes the computer to perform the method described in the method embodiment.

[0081] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0082] In addition, the functional modules in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0083] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0084] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0085] The above description is merely a specific embodiment 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 technical scope 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 scope of the claims.

[0086] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 said element.

Claims

1. A method for controlling an automotive air conditioning system, characterized in that, include: The outside temperature and the target air outlet temperature are acquired; the target air outlet temperature is determined based on current environmental parameters and the user-set temperature. The air conditioning operation mode is controlled based on the outside temperature and the target air outlet temperature. When the air conditioner is in ventilation mode, the opening of the air circulation damper is adjusted according to the target outlet air temperature and the actual outlet air temperature. The method of controlling the air conditioning operation mode based on the outside temperature and the target air outlet temperature includes: If the outside temperature is less than zero degrees Celsius, the air conditioning will be set to heating mode. If the outside temperature is greater than or equal to zero degrees Celsius, when the target air outlet temperature is greater than the first preset value, the air conditioner is controlled to operate in heating mode; when the target air outlet temperature is less than the second preset value, the air conditioner is controlled to operate in cooling mode; and when the target air outlet temperature is greater than or equal to the second preset value and less than or equal to the first preset value, the air conditioner is controlled to operate in ventilation mode. The step of adjusting the air conditioner's recirculation damper opening based on the target outlet air temperature and the actual outlet air temperature includes: The opening of the air conditioner's recirculation damper is adjusted using a positional PI control algorithm; the control deviation of the positional PI control algorithm is the difference between the target outlet air temperature and the actual outlet air temperature, and the output value is the opening of the air conditioner's recirculation damper.

2. The method according to claim 1, characterized in that, The target air outlet temperature is obtained by querying a target table; the target table records the target air outlet temperature corresponding to different environmental parameters and different user-set temperatures; the target table is formulated by testing the air outlet temperature achieved by the air conditioner under various environmental parameters to meet the user-set temperatures.

3. The method according to claim 1, characterized in that, The first preset value is equal to the outside temperature of the vehicle; when the outside temperature of the vehicle is between 0 and 30°C, the second preset value is two-thirds of the outside temperature of the vehicle; when the outside temperature of the vehicle is greater than 30°C, the second preset value is 20°C.

4. The method according to claim 1, characterized in that, The method further includes: When the opening of the circulating damper reaches the upper or lower limit and the absolute value of the control deviation is greater than the third preset value, the operating mode of the air conditioner is switched.

5. The method according to claim 4, characterized in that, When the opening of the circulating damper reaches the upper or lower limit and the absolute value of the control deviation is greater than the third preset value, the air conditioner's operating mode is switched, including: When the opening of the circulating damper is 100%, and the difference between the target outlet air temperature and the actual outlet air temperature is greater than the third preset value, the operating mode of the air conditioner is switched from ventilation mode to heating mode. When the opening of the circulating damper is 0, and the difference between the actual outlet air temperature and the target outlet air temperature is greater than the third preset value, the operating mode of the air conditioner is switched from ventilation mode to cooling mode.

6. A car air conditioning control device, characterized in that, include: The acquisition module is used to acquire the outside temperature and the target air outlet temperature; the target air outlet temperature is determined based on the current environmental parameters and the user-set temperature. The control module is used to control the operating mode of the air conditioner based on the outside temperature and the target air outlet temperature. The adjustment module is used to adjust the opening of the air circulation damper of the air conditioner according to the target outlet air temperature and the actual outlet air temperature when the air conditioner is in ventilation mode. The control module is specifically used to: control the air conditioner to operate in heating mode if the outside temperature is less than zero degrees Celsius; control the air conditioner to operate in heating mode if the outside temperature is greater than or equal to zero degrees Celsius and the target air outlet temperature is greater than a first preset value; control the air conditioner to operate in cooling mode if the target air outlet temperature is less than a second preset value; and control the air conditioner to operate in ventilation mode if the target air outlet temperature is greater than or equal to the second preset value and less than or equal to the first preset value. The adjustment module is specifically used to: adjust the opening of the air conditioner's circulating damper using a positional PI control algorithm when the air conditioner is in ventilation mode; the control deviation of the positional PI control algorithm is the difference between the target air outlet temperature and the actual air outlet temperature, and the output value is the opening of the air conditioner's circulating damper.

7. A computer-readable storage medium, characterized in that, It stores a computer program thereon, which, when executed by a processor, implements the method as described in any one of claims 1 to 5.

8. An electronic device, characterized in that, It includes a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method as described in any one of claims 1 to 5.

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