Automatic calibration method, device, storage medium and electronic device for vehicle air conditioning

Abstract

This invention discloses an automatic calibration method, apparatus, storage medium, and electronic device for vehicle air conditioning. The method includes: collecting at least one set of initial operating parameters of the target vehicle; inputting the at least one set of initial operating parameters into a target calibration model to obtain parameters to be evaluated; performing a thermal comfort evaluation on the parameters to be evaluated based on thermal comfort evaluation indicators to obtain a thermal comfort evaluation result; and determining the target calibration result of the vehicle air conditioning system in response to the thermal comfort evaluation result conforming to the thermal comfort standard value of the vehicle air conditioning system. This invention solves the technical problems of high calibration costs and inaccurate calibration results caused by experimental calibration of air conditioning systems using actual vehicles in related technologies.

Description

Technical Field

[0001] This invention relates to the field of vehicle thermal management technology, and more specifically, to an automatic calibration method, apparatus, storage medium, and electronic device for vehicle air conditioning. Background Technology

[0002] With the advancement of automotive electrification, in-vehicle air conditioning has become a standard feature for car buyers. Before a car is launched on the market, OEMs need to calibrate the in-vehicle air conditioning system to ensure that the cabin temperature reaches the target level under different environmental conditions.

[0003] In related technologies, automakers typically use real vehicles for testing and calibration, using head temperature as the control target and referencing the subjective thermal comfort evaluations of calibration engineers to assess air conditioning performance. However, this real-vehicle testing and calibration requires significant testing resources, and the final subjective evaluation results are easily influenced by various factors, leading to inaccurate calibration results for in-vehicle air conditioning.

[0004] There is currently no effective solution to the above problems. Summary of the Invention

[0005] This invention provides an automatic calibration method, apparatus, storage medium, and electronic device for vehicle air conditioning, to at least solve the technical problems of high calibration costs and inaccurate calibration results caused by experimental calibration of air conditioning systems using actual vehicles in related technologies.

[0006] According to one embodiment of the present invention, an automatic calibration method for an in-vehicle air conditioner is provided, comprising: collecting at least one set of initial operating condition parameters of a target vehicle, wherein the initial operating condition parameters are used to represent the set environmental operating conditions, set operating conditions, and initial operating conditions of the in-vehicle air conditioner of the target vehicle; inputting at least one set of initial operating condition parameters into a target calibration model to obtain parameters to be evaluated, wherein the parameters to be evaluated are used to set the air temperature, air humidity, and average wind speed within a preset range around the target object in the target vehicle; performing a thermal comfort evaluation on the parameters to be evaluated based on thermal comfort evaluation indicators to obtain a thermal comfort evaluation result; and determining a target calibration result for the in-vehicle air conditioner in response to the thermal comfort evaluation result meeting the thermal comfort standard value of the in-vehicle air conditioner, wherein the target calibration result is used to calibrate the target operating conditions of the in-vehicle air conditioner under the set environmental operating conditions.

[0007] Optionally, the target calibration model includes multiple digital modules, and multiple bidirectional and unidirectional interfaces are set between the multiple digital modules. The bidirectional interfaces are used to connect digital modules with bidirectional interfaces for bidirectional data transmission, and the unidirectional interfaces are used to connect digital modules with unidirectional interfaces for unidirectional data transmission.

[0008] Optionally, the multiple digital modules include a control module, an air conditioning module, a cockpit module, a vehicle module, a human body module, and an evaluation module. The control module and the air conditioning module are connected via a bidirectional interface, the air conditioning module and the cockpit module are connected via a bidirectional interface, the cockpit module and the vehicle module are connected via a bidirectional interface, the cockpit module and the human body module are connected via a bidirectional interface, the human body module and the evaluation module are connected via a unidirectional interface, and the evaluation module and the control module are connected via a unidirectional interface.

[0009] Optionally, the control module transmits at least one of the following parameters to the air conditioning module via a bidirectional interface: blower voltage, recirculation damper control signal, mode damper control signal, temperature damper control signal, and compressor control signal; the air conditioning module transmits at least one of the following parameters to the control module via a bidirectional interface: ambient temperature, light intensity, cabin temperature, evaporator temperature, coolant temperature, vehicle speed, air conditioning pipe pressure, and light intensity; the air conditioning module transmits at least one of the following parameters to the cabin module via a bidirectional interface: blower airflow and evaporator temperature; the cabin module transmits cabin temperature to the air conditioning module via a bidirectional interface; the cabin module transmits interior surface air temperature and heat transfer coefficient to the vehicle module via a bidirectional interface; the vehicle module transmits interior surface temperature to the cabin module via a bidirectional interface; the cabin module transmits virtual human body surface air temperature and heat transfer coefficient to the human body module via a bidirectional interface; the human body module transmits virtual human body surface temperature to the cabin module via a bidirectional interface; the human body module transmits virtual human body surface temperature to the evaluation module via a one-way interface; and the evaluation module transmits thermal comfort level to the control module via a one-way interface.

[0010] Optionally, inputting at least one set of initial operating condition parameters into the target calibration model to obtain the parameters to be evaluated includes: initializing the target calibration model based on at least one set of initial operating condition parameters to determine the target solution object in the target calibration model; and solving the target solution object to obtain the parameters to be evaluated.

[0011] Optionally, the automatic calibration method for vehicle air conditioning also includes: adjusting the initial operating conditions of vehicle air conditioning based on the thermal comfort evaluation results in response to the thermal comfort evaluation results not meeting the thermal comfort standard values.

[0012] According to one embodiment of the present invention, an automatic calibration device for vehicle air conditioning is provided, comprising: a data acquisition module for acquiring at least one set of initial operating condition parameters of a target vehicle, wherein the initial operating condition parameters represent the set environmental conditions, set operating conditions, and initial operating conditions of the vehicle air conditioning; a processing module for inputting at least one set of initial operating condition parameters into a target calibration model to obtain parameters to be evaluated, wherein the parameters to be evaluated are used to set the air temperature, air humidity, and average wind speed within a preset range around the target object in the target vehicle; an evaluation module for performing a thermal comfort evaluation on the parameters to be evaluated based on thermal comfort evaluation indicators to obtain a thermal comfort evaluation result; and a response module for determining a target calibration result of the vehicle air conditioning in response to the thermal comfort evaluation result meeting the thermal comfort standard value of the vehicle air conditioning, wherein the target calibration result is used to calibrate the target operating conditions of the vehicle air conditioning under the set environmental conditions.

[0013] Optionally, the target calibration model includes multiple digital modules, and multiple bidirectional and unidirectional interfaces are set between the multiple digital modules. The bidirectional interfaces are used to connect digital modules with bidirectional interfaces for bidirectional data transmission, and the unidirectional interfaces are used to connect digital modules with unidirectional interfaces for unidirectional data transmission.

[0014] Optionally, the multiple digital modules include a control module, an air conditioning module, a cockpit module, a vehicle module, a human body module, and an evaluation module. The control module and the air conditioning module are connected via a bidirectional interface, the air conditioning module and the cockpit module are connected via a bidirectional interface, the cockpit module and the vehicle module are connected via a bidirectional interface, the cockpit module and the human body module are connected via a bidirectional interface, the human body module and the evaluation module are connected via a unidirectional interface, and the evaluation module and the control module are connected via a unidirectional interface.

[0015] Optionally, the control module transmits at least one of the following parameters to the air conditioning module via a bidirectional interface: blower voltage, recirculation damper control signal, mode damper control signal, temperature damper control signal, and compressor control signal; the air conditioning module transmits at least one of the following parameters to the control module via a bidirectional interface: ambient temperature, light intensity, cabin temperature, evaporator temperature, coolant temperature, vehicle speed, air conditioning pipe pressure, and light intensity; the air conditioning module transmits at least one of the following parameters to the cabin module via a bidirectional interface: blower airflow and evaporator temperature; the cabin module transmits cabin temperature to the air conditioning module via a bidirectional interface; the cabin module transmits interior surface air temperature and heat transfer coefficient to the vehicle module via a bidirectional interface; the vehicle module transmits interior surface temperature to the cabin module via a bidirectional interface; the cabin module transmits virtual human body surface air temperature and heat transfer coefficient to the human body module via a bidirectional interface; the human body module transmits virtual human body surface temperature to the cabin module via a bidirectional interface; the human body module transmits virtual human body surface temperature to the evaluation module via a one-way interface; and the evaluation module transmits thermal comfort level to the control module via a one-way interface.

[0016] Optionally, the processing module is also used to: initialize the target calibration model based on at least one set of initial working condition parameters, determine the target solution object in the target calibration model, and perform solution processing on the target solution object to obtain the parameters to be evaluated.

[0017] Optionally, the response module is also used to: adjust the initial operating conditions of the vehicle air conditioner based on the thermal comfort evaluation results in response to the thermal comfort evaluation results not meeting the thermal comfort standard values.

[0018] According to one embodiment of the present invention, a computer-readable storage medium is provided, wherein a computer program is stored in the storage medium, and the computer program is configured to execute the automatic calibration method for vehicle air conditioning described above when running.

[0019] According to one embodiment of the present invention, a processor is provided, the processor being used to run a program, wherein the program is configured to execute the automatic calibration method for vehicle air conditioning as described above when running.

[0020] According to one embodiment of the present invention, an electronic device is provided, including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the automatic calibration method for an in-vehicle air conditioner as described above.

[0021] In this embodiment of the invention, the air temperature, air humidity, and average wind speed within a preset range around the target object are determined using a target calibration model based on at least one set of initial operating parameters of the vehicle air conditioner. This yields the parameters to be evaluated. Then, a thermal comfort evaluation is performed on the parameters to be evaluated based on thermal comfort evaluation indicators to obtain thermal comfort evaluation results. Finally, if the thermal comfort evaluation results meet the thermal comfort standard values ​​of the vehicle air conditioner, the target calibration result of the vehicle air conditioner can be obtained. This completes the efficient virtual calibration of the vehicle air conditioner. The entire process is completed automatically without the need for actual vehicle testing or subjective evaluation by calibration engineers. This achieves the technical effect of reducing the calibration cost of the vehicle air conditioner and improving the accuracy of the calibration results. This solves the technical problems of high calibration costs and inaccurate calibration results caused by experimental calibration of air conditioning systems using actual vehicles in related technologies. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0023] Figure 1 This is a flowchart of an automatic calibration method for a vehicle air conditioner according to one embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of a target calibration model according to one embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of a control module according to one embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of an air conditioning module according to one embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of a cockpit module according to one embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of a vehicle module according to one embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of a human body module according to one embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of an automatic calibration method for a vehicle air conditioner according to one embodiment of the present invention;

[0031] Figure 9 This is a structural block diagram of an automatic calibration device for a vehicle air conditioner according to one embodiment of the present invention. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] According to an embodiment of the present invention, an automatic calibration method for vehicle air conditioning is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0035] This method embodiment can be executed in an electronic device or similar computing device that includes memory and a processor. Taking operation on a computer terminal as an example, the computer terminal may include one or more processors (processors may include, but are not limited to, central processing units (CPUs), graphics processing units (GPUs), digital signal processing (DSP) chips, microcontroller units (MCUs), field-programmable gate arrays (FPGAs), neural network processors (NPUs), tensor processors (TPUs), artificial intelligence (AI) type processors, etc.) and memory for storing data. Optionally, the computer terminal may also include transmission devices for communication functions. Those skilled in the art will understand that the above structural description is merely illustrative and does not limit the structure of the computer terminal. For example, the computer terminal may include more or fewer components than described above, or have a different configuration than described above.

[0036] The memory can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to the information processing method in this embodiment of the invention. The processor executes various functional applications and data processing by running the computer program stored in the memory, thereby implementing the aforementioned information processing method. The memory may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory may further include memory remotely located relative to the processor, and these remote memories can be connected to a computer terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0037] The transmission device is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider for the computer terminal. In one example, the transmission device includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission device may be a Radio Frequency (RF) module, used for wireless communication with the Internet.

[0038] This invention provides an automatic calibration method for an in-vehicle air conditioner running on the aforementioned computer terminal. Figure 1 This is a flowchart of an automatic calibration method for a vehicle air conditioner according to one embodiment of the present invention, such as... Figure 1 As shown, the method includes the following steps:

[0039] Step S11: Collect at least one set of initial operating condition parameters of the target vehicle, wherein the initial operating condition parameters are used to represent the set environmental conditions, set operating conditions and initial operating conditions of the vehicle air conditioner of the target vehicle.

[0040] Step S12: Input at least one set of initial working condition parameters into the target calibration model to obtain the parameters to be evaluated. The parameters to be evaluated are used to set the air temperature, air humidity and average wind speed within a preset range around the target object in the target vehicle.

[0041] Step S13: Based on the thermal comfort evaluation index, perform thermal comfort evaluation on the parameter to be evaluated to obtain the thermal comfort evaluation result;

[0042] Step S14: In response to the thermal comfort evaluation result meeting the thermal comfort standard value of the vehicle air conditioner, determine the target calibration result of the vehicle air conditioner, wherein the target calibration result is used to calibrate the target operating conditions of the vehicle air conditioner under the set environmental conditions.

[0043] The aforementioned initial operating condition parameters can be obtained through simulation of the target vehicle's environmental conditions, operating status, and the operation of its onboard air conditioning system. Alternatively, they can be used as set operating condition parameters for experimental calibration. These initial operating condition parameters can represent the target vehicle's set environmental conditions, set operating conditions, and the initial operating conditions of the onboard air conditioning system. The set environmental conditions and set operating conditions of the target vehicle can be arbitrarily set, unaffected by actual weather or environmental constraints. This increases the number of calibration conditions, enabling the automatic calibration method for onboard air conditioning proposed in this invention to be applicable to more comprehensive usage scenarios and meet the needs of more users.

[0044] Specifically, at least one set of initial operating condition parameters may include parameters such as ambient temperature, light intensity, cabin temperature, vehicle speed, blower voltage, compressor speed, evaporator temperature, mode damper status, and hot / cold damper status. Ambient temperature, light intensity, and cabin temperature can represent the set environmental operating conditions of the target vehicle; vehicle speed can represent the set operating conditions of the target vehicle; and blower voltage, compressor speed, evaporator temperature, mode damper status, and hot / cold damper status can represent the initial operating conditions of the vehicle's air conditioning system. It should be noted that the description of the specific content of the initial operating condition parameters in this embodiment of the invention is merely an example and does not constitute a specific limitation.

[0045] Optionally, the vehicle air conditioner can be distributedly calibrated using a target calibration model based on at least one set of initial operating condition parameters to obtain target calibration results. Specifically, at least one set of initial operating condition parameters is input into the target calibration model. The evaluation module of the target calibration model can predict the air temperature, air humidity, and average wind speed within a preset range around the target object in the target vehicle. Thermal comfort evaluation indicators are used to evaluate the parameters to be evaluated by the evaluation module to obtain thermal comfort level values. Further, it is determined whether the thermal comfort level value meets the thermal comfort standard value of the vehicle air conditioner. When the thermal comfort level value meets the thermal comfort standard value of the vehicle air conditioner, the target operating condition of the vehicle air conditioner under the preset environmental conditions is determined. The target operating conditions under at least one set environmental condition are summarized to obtain the target calibration results of the vehicle air conditioner.

[0046] Specifically, the aforementioned target calibration model can be built using digital virtual technology. The process of distributing the calibration of the vehicle's air conditioning system using this model is a virtual calibration process. Since virtual calibration does not require physical vehicle resources and can be implemented during the data development phase, the calibration cycle during development can be shortened. Furthermore, because the target calibration model is built using digital virtual technology, the calibration of the vehicle's air conditioning system based on multiple sets of initial operating parameters can be performed simultaneously, further reducing the calibration cycle and lowering calibration costs.

[0047] The above target calibration results represent the set of target operating conditions for the vehicle air conditioning system. Each target operating condition in this set conforms to the thermal comfort standard value of the vehicle air conditioning system under the corresponding set environmental and operating conditions. Specifically, the thermal comfort evaluation levels can be divided into seven levels: cold, cool, slightly cool, neutral, slightly warm, warm, and hot. Their corresponding thermal comfort level values ​​are -3, -2, -1, 0, 1, 2, and 3, respectively. The thermal comfort standard value for the vehicle air conditioning system is 0. When the thermal comfort level value during vehicle air conditioning operation is 0, the corresponding target operating condition conforms to the thermal comfort standard value of the vehicle air conditioning system. By summarizing at least one target operating condition that conforms to the thermal comfort standard value, the target calibration results are obtained.

[0048] Based on steps S11 to S14 above, the air temperature, air humidity, and average wind speed within a preset range around the target object are determined using the target calibration model based on at least one set of initial operating condition parameters of the vehicle air conditioner. This yields the parameters to be evaluated. Then, thermal comfort evaluation is performed on the parameters to be evaluated based on thermal comfort evaluation indicators to obtain thermal comfort evaluation results. Finally, if the thermal comfort evaluation results meet the thermal comfort standard values ​​of the vehicle air conditioner, the target calibration results of the vehicle air conditioner can be obtained. This completes the efficient virtual calibration of the vehicle air conditioner. The entire process is automatic, without the need for actual vehicle testing or subjective evaluation by calibration engineers. This achieves the technical effect of reducing the calibration cost of the vehicle air conditioner and improving the accuracy of the calibration results. This solves the technical problems of high calibration costs and inaccurate calibration results caused by experimental calibration of air conditioning systems using actual vehicles in related technologies.

[0049] The automatic calibration method for vehicle air conditioning in the above embodiments will be further described below.

[0050] Optionally, the target calibration model includes multiple digital modules, and multiple bidirectional and unidirectional interfaces are set between the multiple digital modules. The bidirectional interfaces are used to connect digital modules with bidirectional interfaces for bidirectional data transmission, and the unidirectional interfaces are used to connect digital modules with unidirectional interfaces for unidirectional data transmission.

[0051] The various digital modules in the aforementioned target calibration model can be constructed using digital virtual technology. For example, algorithms for various usage scenarios can be written using Simulink, a visualization simulation tool in mathematical software (MATLAB), to obtain the control module in the target calibration model; a virtual vehicle air conditioning system, including the refrigeration cycle, heating system, ventilation system, and various actuators, can be built using one-dimensional simulation software to obtain the air conditioning module in the target calibration model; a virtual vehicle cabin space can be built using three-dimensional simulation software to obtain the cabin module in the target calibration model; a virtual actual vehicle can be built using thermal simulation software to obtain the vehicle module in the target calibration model; a human physiological model can be used to obtain the human body module in the target calibration model; and a human thermal psychological model can be used to obtain the evaluation module in the target calibration model.

[0052] After constructing multiple digital modules in the target calibration model using digital virtual technology, multiple bidirectional and unidirectional interfaces can be added between these digital modules. Specifically, these unidirectional and bidirectional interfaces can be created in various ways. For example, they can be interfaces built into the simulation software, general-purpose interfaces, or interfaces developed by calibration personnel. These interfaces enable data interaction between multiple digital modules.

[0053] Based on the above optional embodiments, multiple digital modules in the target calibration model are constructed synchronously through modular virtual means, thereby effectively reducing the model preparation cycle and further reducing the calibration cost of vehicle air conditioning.

[0054] Optionally, the multiple digital modules include a control module, an air conditioning module, a cockpit module, a vehicle module, a human body module, and an evaluation module. The control module and the air conditioning module are connected via a bidirectional interface, the air conditioning module and the cockpit module are connected via a bidirectional interface, the cockpit module and the vehicle module are connected via a bidirectional interface, the cockpit module and the human body module are connected via a bidirectional interface, the human body module and the evaluation module are connected via a unidirectional interface, and the evaluation module and the control module are connected via a unidirectional interface.

[0055] Figure 2 This is a schematic diagram of the structure of a target calibration model according to one embodiment of the present invention, as shown below. Figure 2As shown, the target calibration model includes a control module, an air conditioning module, a cockpit module, a vehicle module, a human body module, and an evaluation module, as well as bidirectional interfaces ①, ②, ③, ④, ⑤, and ⑥. Specifically, the control module and the air conditioning module are connected via bidirectional interface ①; the air conditioning module and the cockpit module are connected via bidirectional interface ②; the cockpit module and the vehicle module are connected via bidirectional interface ③; the cockpit module and the human body module are connected via bidirectional interface ④; the human body module and the evaluation module are connected via unidirectional interface ⑤; and the evaluation module and the control module are connected via unidirectional interface ⑥. When calibrating the in-vehicle air conditioning systems of different vehicle models, only the geometry of the cockpit module and the vehicle module needs to be updated, and the parameters of other modules need to be adjusted to achieve compatibility of the target calibration model.

[0056] Specifically, Figure 3 This is a schematic diagram of a control module according to one embodiment of the present invention. By using Simulink tools to write algorithms for various usage scenarios, a virtual vehicle air conditioning controller can be obtained, i.e., the control module described above. The control module can receive signals and calculate feedback signals.

[0057] Figure 4 This is a schematic diagram of an air conditioning module according to one embodiment of the present invention. The air conditioning module includes an air conditioning compressor, condenser, blower, liquid receiver, evaporator, air conditioning pipes, expansion valve, and other actuators. This air conditioning module is a virtual vehicle air conditioning system that can receive and execute instructions from the control module to output a certain amount of cool air, warm air, or natural wind to the cabin.

[0058] Figure 5 This is a schematic diagram of a cockpit module according to one embodiment of the present invention. The cockpit module is a virtual real vehicle cockpit space that can receive cold and warm air provided by the air conditioning module, perform flow field and thermal field simulation analysis, and conduct convective heat exchange with the vehicle interior and human body module.

[0059] Figure 6 This is a schematic diagram of a vehicle module according to one embodiment of the present invention. The vehicle module is a virtual actual vehicle that can simulate various driving conditions and simultaneously exchange heat with the external environment and the cabin module through radiation and convection. The vehicle module can also set the material properties of the body and interior and exterior trim components, as well as the thickness of each material layer. For light-transmitting materials, optical properties such as transmittance also need to be set, such as the front and rear windshields, door windows, and sunroof of the target vehicle.

[0060] Figure 7This is a schematic diagram of a human body module according to one embodiment of the present invention. The human body module can be a human physiological model that can simulate the bones, muscles, fat, skin, blood and clothing of the driver and passengers. It can also simulate the process of the human body generating heat due to metabolism, thereby regulating body temperature based on the air environment inside the cabin. For example, it can sweat in hot weather and shiver in cold weather.

[0061] The aforementioned evaluation module can be a human thermal psychological model, capable of simulating the human body's thermal psychological response to the surrounding environment, thereby calculating the thermal comfort level based on the overall and local surface temperature and its changes within the human body module. Specifically, at least one set of initial operating condition parameters is input into the target calibration model. The evaluation module of the target calibration model can predict the air temperature, air humidity, and average wind speed within a preset range around the target object in the target vehicle. Furthermore, thermal comfort evaluation indicators are used to assess the thermal comfort of the air temperature, air humidity, and average wind speed within the preset range around the target object as determined by the aforementioned evaluation module. In other words, by simulating the human body's thermal psychological response to the surrounding environment, the thermal comfort level is obtained.

[0062] Based on the above optional embodiments, a target calibration model compatible with various vehicle models can be constructed. This allows for virtual calibration of the vehicle air conditioning system, enabling it to replace real vehicle test calibration and directly reduce test costs, including test vehicles, test engineers, monitoring equipment and laboratories, and consumable expenses, thereby achieving the effect of reducing calibration costs.

[0063] Optionally, the control module transmits at least one of the following parameters to the air conditioning module via a bidirectional interface: blower voltage, recirculation damper control signal, mode damper control signal, temperature damper control signal, and compressor control signal; the air conditioning module transmits at least one of the following parameters to the control module via a bidirectional interface: ambient temperature, light intensity, cabin temperature, evaporator temperature, coolant temperature, vehicle speed, air conditioning pipe pressure, and light intensity; the air conditioning module transmits at least one of the following parameters to the cabin module via a bidirectional interface: blower airflow and evaporator temperature; the cabin module transmits cabin temperature to the air conditioning module via a bidirectional interface; the cabin module transmits interior surface air temperature and heat transfer coefficient to the vehicle module via a bidirectional interface; the vehicle module transmits interior surface temperature to the cabin module via a bidirectional interface; the cabin module transmits virtual human body surface air temperature and heat transfer coefficient to the human body module via a bidirectional interface; the human body module transmits virtual human body surface temperature to the cabin module via a bidirectional interface; the human body module transmits virtual human body surface temperature to the evaluation module via a one-way interface; and the evaluation module transmits thermal comfort level to the control module via a one-way interface.

[0064] Specifically, continue with the above. Figure 2Taking the target calibration model shown as an example, the control module transmits at least one of the following parameters to the air conditioning module through bidirectional interface ①: blower voltage, circulation damper control signal, mode damper control signal, temperature damper control signal, and compressor control signal; the air conditioning module transmits at least one of the following parameters to the control module through bidirectional interface ①: ambient temperature, light intensity, cabin temperature, evaporator temperature, coolant temperature, vehicle speed, air conditioning pipe pressure, and light intensity; the air conditioning module transmits at least one of the following parameters to the cabin module through bidirectional interface ②: blower airflow and evaporator temperature; the cabin module transmits the cabin temperature to the air conditioning module through bidirectional interface ②; the cabin module transmits the interior surface air temperature and heat transfer coefficient to the vehicle module through bidirectional interface ③; the vehicle module transmits the interior surface temperature to the cabin module through bidirectional interface ③; the cabin module transmits the virtual human body surface air temperature and heat transfer coefficient to the human body module through bidirectional interface ④; the human body module transmits the virtual human body surface temperature to the cabin module through bidirectional interface ④; the human body module transmits the virtual human body surface temperature to the evaluation module through one-way interface ⑤; and the evaluation module transmits the thermal comfort level to the control module through one-way interface ⑥.

[0065] Based on the above optional embodiments, bidirectional data transmission is enabled between digital modules connected to bidirectional interfaces through bidirectional interfaces, and unidirectional data transmission is enabled between digital modules connected to unidirectional interfaces through unidirectional interfaces. This enables data exchange between multiple digital modules in the target calibration module, which can more realistically simulate the actual operation of the vehicle air conditioner and further improve the accuracy of the calibration results.

[0066] Optionally, in step S12, at least one set of initial operating condition parameters are input into the target calibration model to obtain the parameters to be evaluated, including:

[0067] Step S121: Initialize the target calibration model based on at least one set of initial working condition parameters, and determine the target solution object in the target calibration model;

[0068] Step S122: Solve the target object to obtain the parameters to be evaluated.

[0069] Specifically, the target calibration model is initialized using at least one set of initial operating condition parameters, and the target solution object in the target calibration model is determined to be the thermal comfort level of the evaluation module. The solver is then used to solve the model based on at least one set of initial operating condition parameters to obtain the parameters to be evaluated corresponding to the initial operating condition parameters. These parameters are used to set the air temperature, air humidity, and average wind speed within a preset range around the target object in the target vehicle.

[0070] Furthermore, based on thermal comfort evaluation indicators, the parameters to be evaluated are assessed for thermal comfort, yielding thermal comfort evaluation results. Specifically, the thermal comfort evaluation results can be the thermal comfort level values ​​output by the evaluation module. Specifically, multiple preset state indicators are multiple human comfort indicators, including Predicted Mean Vote (PMV), Dynamic Thermal Sensation (DTS), and Zhang-comfort. PMV is calculated from environmental parameters such as air temperature, mean radiant temperature, air velocity, relative humidity, metabolic rate, and clothing thermal resistance. Then, it is determined whether the thermal comfort level value is the standard thermal comfort value, that is, whether the human body can achieve a comfortable state under the set environmental and operating conditions of the vehicle air conditioning. When the thermal comfort level value of the human body module is 0, i.e., the thermal comfort level is thermally neutral, the vehicle air conditioning operating condition at this time is determined as the target operating condition. Summarizing the target operating conditions yields the target calibration results. Because of the use of digital virtual methods, the calibration of vehicle air conditioning can be carried out simultaneously based on multiple sets of initial operating parameters, thereby further reducing the calibration cycle and solving the calibration cost problem.

[0071] Optionally, the automatic calibration method for vehicle air conditioning also includes: adjusting the initial operating conditions of vehicle air conditioning based on the thermal comfort evaluation results in response to the thermal comfort evaluation results not meeting the thermal comfort standard values.

[0072] Figure 8 This is a schematic diagram of an automatic calibration method for a vehicle air conditioner according to one embodiment of the present invention, as shown below. Figure 8 As shown, n sets of initial operating condition parameters of the target vehicle are collected. Digital virtual technology is used to construct a virtual model of the target vehicle, including a control module, air conditioning module, cabin module, vehicle module, human body module, and evaluation module. The control module and air conditioning module are connected via bidirectional interfaces; the air conditioning module and cabin module are connected via bidirectional interfaces; the cabin module and vehicle module are connected via bidirectional interfaces; the cabin module and human body module are connected via bidirectional interfaces; the human body module and evaluation module are connected via unidirectional interfaces; and the evaluation module and control module are connected via unidirectional interfaces. The target calibration model is then used to perform distributed calibration of the vehicle's air conditioning system under n operating conditions.

[0073] Taking the calibration process of Condition 1 as an example, the initial operating parameters corresponding to Condition 1 are used to initialize the target calibration model, and the target solution object in the target calibration model is determined to be the thermal comfort level of the evaluation module. Then, the solver is started to solve based on the initial operating parameters corresponding to Condition 1, obtaining the thermal comfort level value obtained from the initial operating parameters of Condition 1. It is then determined whether the thermal comfort level value meets the thermal comfort standard value, that is, whether the solved thermal comfort level is thermally neutral. When the thermal comfort level of the human body module is thermally neutral, the vehicle air conditioning operating condition corresponding to Condition 1 at this time is determined as the target operating condition, and the target operating condition is entered into the basic data. When the thermal comfort level of the human body module is not thermally neutral, the initial operating condition of the vehicle air conditioning in Condition 1 is adjusted based on the solved thermal comfort level value, and the above solution and judgment process is repeated until the thermal comfort level evaluation result is thermally neutral. Then, the operating parameters corresponding to Condition 1 at this time are determined as the target operating condition corresponding to Condition 1. The calibration process for operating conditions 2 through n is similar to the above process and will not be repeated. Finally, the target operating conditions corresponding to each preset environmental operating condition are summarized to obtain the target calibration results. The target calibration results are then encapsulated using a target control algorithm to complete the calibration of the vehicle air conditioner.

[0074] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a computer terminal to execute the methods described in the various embodiments of the present invention.

[0075] This embodiment also provides an automatic calibration device for a vehicle air conditioner, which is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that performs a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0076] Figure 9 This is a structural block diagram of an automatic calibration device for a vehicle air conditioner according to one embodiment of the present invention, such as... Figure 9 As shown, the device includes:

[0077] The acquisition module 901 is used to acquire at least one set of initial operating condition parameters of the target vehicle, wherein the initial operating condition parameters are used to represent the set environmental operating conditions, set operating conditions and initial operating conditions of the vehicle air conditioner of the target vehicle.

[0078] The processing module 902 is used to input at least one set of initial operating condition parameters into the target calibration model to obtain the parameters to be evaluated, wherein the parameters to be evaluated are used to set the air temperature, air humidity and average wind speed within a preset range around the target object in the target vehicle.

[0079] The evaluation module 903 is used to evaluate the thermal comfort of the parameters to be evaluated based on thermal comfort evaluation indicators, and obtain thermal comfort evaluation results.

[0080] The response module 904 is used to determine the target calibration result of the vehicle air conditioner in response to the thermal comfort evaluation result meeting the thermal comfort standard value of the vehicle air conditioner. The target calibration result is used to calibrate the target operating conditions of the vehicle air conditioner under the set environmental conditions.

[0081] Optionally, the target calibration model includes multiple digital modules, and multiple bidirectional and unidirectional interfaces are set between the multiple digital modules. The bidirectional interfaces are used to connect digital modules with bidirectional interfaces for bidirectional data transmission, and the unidirectional interfaces are used to connect digital modules with unidirectional interfaces for unidirectional data transmission.

[0082] Optionally, the multiple digital modules include a control module, an air conditioning module, a cockpit module, a vehicle module, a human body module, and an evaluation module. The control module and the air conditioning module are connected via a bidirectional interface, the air conditioning module and the cockpit module are connected via a bidirectional interface, the cockpit module and the vehicle module are connected via a bidirectional interface, the cockpit module and the human body module are connected via a bidirectional interface, the human body module and the evaluation module are connected via a unidirectional interface, and the evaluation module and the control module are connected via a unidirectional interface.

[0083] Optionally, the control module transmits at least one of the following parameters to the air conditioning module via a bidirectional interface: blower voltage, recirculation damper control signal, mode damper control signal, temperature damper control signal, and compressor control signal; the air conditioning module transmits at least one of the following parameters to the control module via a bidirectional interface: ambient temperature, light intensity, cabin temperature, evaporator temperature, coolant temperature, vehicle speed, air conditioning pipe pressure, and light intensity; the air conditioning module transmits at least one of the following parameters to the cabin module via a bidirectional interface: blower airflow and evaporator temperature; the cabin module transmits cabin temperature to the air conditioning module via a bidirectional interface; the cabin module transmits interior surface air temperature and heat transfer coefficient to the vehicle module via a bidirectional interface; the vehicle module transmits interior surface temperature to the cabin module via a bidirectional interface; the cabin module transmits virtual human body surface air temperature and heat transfer coefficient to the human body module via a bidirectional interface; the human body module transmits virtual human body surface temperature to the cabin module via a bidirectional interface; the human body module transmits virtual human body surface temperature to the evaluation module via a one-way interface; and the evaluation module transmits thermal comfort level to the control module via a one-way interface.

[0084] Optionally, the processing module 902 is further configured to: initialize the target calibration model based on at least one set of initial operating condition parameters, determine the target solution object in the target calibration model, and perform solution processing on the target solution object to obtain the parameters to be evaluated.

[0085] Optionally, the response module 904 is also used to: adjust the initial operating conditions of the vehicle air conditioner based on the thermal comfort evaluation results in response to the thermal comfort evaluation results not meeting the thermal comfort standard values.

[0086] It should be noted that the above modules can be implemented by software or hardware. For the latter, they can be implemented in the following ways, but are not limited to: all the above modules are located in the same processor; or, the above modules are located in different processors in any combination.

[0087] Embodiments of the present invention also provide a computer-readable storage medium storing a computer program, wherein the computer program is configured to execute the automatic calibration method for vehicle air conditioning described in any of the preceding embodiments when running.

[0088] Optionally, in this embodiment, the computer program described above can be configured to perform the following steps:

[0089] S1, Collect at least one set of initial operating condition parameters of the target vehicle, wherein the initial operating condition parameters are used to represent the set environmental conditions, set operating conditions and initial operating conditions of the vehicle air conditioner of the target vehicle.

[0090] S2, input at least one set of initial working condition parameters into the target calibration model to obtain the parameters to be evaluated, wherein the parameters to be evaluated are used to set the air temperature, air humidity and average wind speed within a preset range around the target object in the target vehicle;

[0091] S3, Based on the thermal comfort evaluation index, the thermal comfort of the parameter to be evaluated is evaluated to obtain the thermal comfort evaluation result;

[0092] S4, in response to the thermal comfort evaluation result conforming to the thermal comfort standard value of the vehicle air conditioner, determine the target calibration result of the vehicle air conditioner, wherein the target calibration result is used to calibrate the target operating conditions of the vehicle air conditioner under the set environmental conditions.

[0093] Embodiments of the present invention also provide an electronic device including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0094] Optionally, in this embodiment, the processor can be configured to perform the following steps via a computer program:

[0095] S1, Collect at least one set of initial operating condition parameters of the target vehicle, wherein the initial operating condition parameters are used to represent the set environmental conditions, set operating conditions and initial operating conditions of the vehicle air conditioner of the target vehicle.

[0096] S2, input at least one set of initial working condition parameters into the target calibration model to obtain the parameters to be evaluated, wherein the parameters to be evaluated are used to set the air temperature, air humidity and average wind speed within a preset range around the target object in the target vehicle;

[0097] S3, Based on the thermal comfort evaluation index, the thermal comfort of the parameter to be evaluated is evaluated to obtain the thermal comfort evaluation result;

[0098] S4, in response to the thermal comfort evaluation result conforming to the thermal comfort standard value of the vehicle air conditioner, determine the target calibration result of the vehicle air conditioner, wherein the target calibration result is used to calibrate the target operating conditions of the vehicle air conditioner under the set environmental conditions.

[0099] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0100] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0101] In the several embodiments provided by this invention, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be 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 displayed or discussed mutual coupling, direct coupling, or communication connection can be through some interfaces; the indirect coupling or communication connection of units or modules can be electrical or other forms.

[0102] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0103] Furthermore, the functional units in the various embodiments of the present invention 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 as a software functional unit.

[0104] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part 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 the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0105] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An automatic calibration method for vehicle air conditioning, characterized in that, include: Collect at least one set of initial operating condition parameters of the target vehicle, wherein the initial operating condition parameters are used to represent the set environmental conditions, set operating conditions and initial operating conditions of the vehicle air conditioner of the target vehicle; The at least one set of initial operating condition parameters are input into the target calibration model to obtain the parameters to be evaluated. The target calibration model consists of multiple data modules, including a control module, an air conditioning module, a cabin module, a vehicle module, a human body module, and an evaluation module. The parameters to be evaluated are used to set the air temperature, air humidity, and average wind speed within a preset range around the target object in the target vehicle. The thermal comfort evaluation results are obtained by evaluating the parameters to be evaluated based on the thermal comfort evaluation index. In response to the thermal comfort evaluation result conforming to the thermal comfort standard value of the vehicle air conditioner, a target calibration result for the vehicle air conditioner is determined, wherein the target calibration result is used to calibrate the target operating condition of the vehicle air conditioner under the set environmental conditions.

2. The method according to claim 1, characterized in that, The target calibration model includes multiple digital modules, and multiple bidirectional and unidirectional interfaces are provided between the multiple digital modules. The bidirectional interface is used for bidirectional data transmission between the digital modules connected to the bidirectional interface, and the unidirectional interface is used for unidirectional data transmission between the digital modules connected to the unidirectional interface.

3. The method according to claim 2, characterized in that, The plurality of digital modules include a control module, an air conditioning module, a cockpit module, a vehicle module, a human body module, and an evaluation module. The control module and the air conditioning module are connected through the bidirectional interface, the air conditioning module and the cockpit module are connected through the bidirectional interface, the cockpit module and the vehicle module are connected through the bidirectional interface, the cockpit module and the human body module are connected through the bidirectional interface, the human body module and the evaluation module are connected through the unidirectional interface, and the evaluation module and the control module are connected through the unidirectional interface.

4. The method according to claim 3, characterized in that, The control module transmits at least one of the following parameters to the air conditioning module through the bidirectional interface: blower voltage, circulation damper control signal, mode damper control signal, temperature damper control signal, and compressor control signal; the air conditioning module transmits at least one of the following parameters to the control module through the bidirectional interface: ambient temperature, light intensity, cabin temperature, evaporator temperature, cooling water temperature, vehicle speed, air conditioning pipe pressure, and light intensity. The air conditioning module transmits at least one of the following parameters to the cabin module through the bidirectional interface: blower airflow and evaporator temperature; the cabin module transmits the cabin temperature to the air conditioning module through the bidirectional interface. The cockpit module transmits the interior surface air temperature and heat transfer coefficient to the vehicle module through the bidirectional interface; the vehicle module transmits the interior surface temperature to the cockpit module through the bidirectional interface. The cockpit module transmits the virtual human body surface air temperature and heat transfer coefficient to the human body module through the bidirectional interface. The human body module transmits virtual human body surface temperature to the cockpit module through the bidirectional interface; The human body module transmits the virtual human body surface temperature to the evaluation module through the one-way interface; The evaluation module transmits the thermal comfort level to the control module through the one-way interface.

5. The method according to claim 1, characterized in that, The parameters to be evaluated are obtained by inputting the at least one set of initial operating condition parameters into the target calibration model, including: The target calibration model is initialized based on the at least one set of initial working condition parameters to determine the target solution object in the target calibration model; The target object is solved to obtain the parameters to be evaluated.

6. The method according to claim 1, characterized in that, The method further includes: In response to the thermal comfort evaluation result not meeting the thermal comfort standard value, the initial operating conditions of the vehicle air conditioner are adjusted based on the thermal comfort evaluation result.

7. An automatic calibration device for a vehicle air conditioner, characterized in that, include: The acquisition module is used to acquire at least one set of initial operating condition parameters of the target vehicle, wherein the initial operating condition parameters are used to represent the set environmental conditions, set operating conditions and initial operating conditions of the vehicle air conditioner of the target vehicle. The processing module is used to input the at least one set of initial operating condition parameters into the target calibration model to obtain the parameters to be evaluated. The target calibration model consists of multiple data modules, including a control module, an air conditioning module, a cabin module, a vehicle module, a human body module, and an evaluation module. The parameters to be evaluated are used to set the air temperature, air humidity, and average wind speed within a preset range around the target object in the target vehicle. The evaluation module is used to evaluate the thermal comfort of the parameter to be evaluated based on thermal comfort evaluation indicators, and obtain thermal comfort evaluation results. A response module is used to determine the target calibration result of the vehicle air conditioner in response to the thermal comfort evaluation result meeting the thermal comfort standard value of the vehicle air conditioner, wherein the target calibration result is used to calibrate the target operating condition of the vehicle air conditioner under the set environmental conditions.

8. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, wherein the computer program is configured to execute the automatic calibration method for the vehicle air conditioner as described in any one of claims 1 to 6 when it is run.

9. A processor, characterized in that, The processor is used to run a program, wherein the program is configured to execute the automatic calibration method for the vehicle air conditioner as described in any one of claims 1 to 6 when running.

10. An electronic device comprising a memory and a processor, characterized in that, The memory stores a computer program, and the processor is configured to run the computer program to perform the automatic calibration method for the vehicle air conditioner as described in any one of claims 1 to 6.

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