Development method, medium and equipment for digital twin product of air conditioner

Abstract

The invention relates to the technical field of air conditioners, particularly provides a development method, medium and equipment for an air conditioner digital twin product, and aims to solve the problems of low research and development speed and high research and development cost of an existing motor home air conditioner product. In order to achieve the purpose, the development method provided by the invention comprises the following steps: obtaining a first theoretical value of a vibration noise parameter of an improved part; obtaining a first actual value of a vibration noise parameter of the part before improvement; judging whether a first ratio of the first theoretical value to the first actual value exceeds a first precision value or not; obtaining a second theoretical value of the vibration noise parameter of the improved component; acquiring a second actual value of the vibration noise parameter of the component before improvement; judging whether a second ratio of the second theoretical value to the second actual value does not exceed a second precision value; if yes, the improved part and the improved part are output, and if not, the improved part is adjusted to obtain the second theoretical value again.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and specifically provides a method, medium and equipment for developing a digital twin product of an air conditioner. Background Art

[0002] With the improvement of the quality of life, RV air conditioners have gradually entered the public's field of vision. RV air conditioners are mainly divided into two types: driving air conditioners and parking air conditioners. Although different types of RV air conditioners have slight differences in structure and function, the basic principles are the same and can provide a comfortable environment for the driver.

[0003] Since there are many types of RV air conditioners, and in order to meet the needs of users, the speed of upgrading and replacing RV air conditioners is getting faster and faster, which brings great challenges to the research and development of new products. In order to increase the speed of new product development and reduce research and development costs, it is necessary to systematically summarize and summarize the product development system of RV air conditioners. In addition, it is also necessary to modularize, systematize and platformize RV air conditioner products.

[0004] Accordingly, the art needs a new method for developing RV air conditioning products to solve the above problems. Summary of the invention

[0005] The present invention aims to solve the above technical problems, namely, the slow development speed and high development cost of existing RV air-conditioning products. To this end, the present invention provides a method for developing an air-conditioning digital twin product, characterized in that the development method comprises the following steps:

[0006] Obtaining a first theoretical value of a vibration noise parameter of the improved part;

[0007] Acquire a first actual value of a vibration noise parameter of the part before improvement;

[0008] Determining whether a first ratio of the first theoretical value to the first actual value exceeds a first accuracy value;

[0009] When the first ratio does not exceed the first accuracy value, assembling the parts to obtain an improved component;

[0010] Obtaining a second theoretical value of the vibration and noise parameter of the improved component;

[0011] Acquire a second actual value of a vibration noise parameter of the component before improvement;

[0012] determining whether a second ratio of the second theoretical value to the second actual value does not exceed a second accuracy value;

[0013] If yes, the improved part and the improved component are outputted; otherwise, the improved component is adjusted to obtain the second theoretical value again.

[0014] In a specific implementation of the above-mentioned method for developing a digital twin product of an air conditioner, when the first ratio exceeds a first accuracy value, the material parameter is adjusted and the first theoretical value is reacquired.

[0015] In the specific implementation of the method for developing the digital twin product of the air conditioner, the step of “obtaining the first theoretical value of the vibration and noise parameter of the improved part” includes the following:

[0016] Obtaining the improved 3D model and material parameters of the part;

[0017] Importing the material parameters into the three-dimensional model to obtain a three-dimensional model with parameters;

[0018] The three-dimensional model with parameters is simulated and analyzed to obtain the first theoretical value of the vibration and noise parameters of the improved part.

[0019] In a specific implementation of the above-mentioned method for developing a digital twin product of an air conditioner, finite element analysis or virtual prototype technology is used to perform simulation analysis on the three-dimensional model with parameters.

[0020] In a specific implementation of the method for developing the digital twin product of the air conditioner, the step of “otherwise adjusting the improved component to re-obtain the second theoretical value” includes the following:

[0021] Obtaining the assembly relationship of the improved components;

[0022] Obtaining boundary conditions of the assembly relationship;

[0023] The boundary condition is adjusted to obtain the second theoretical value again.

[0024] In the specific implementation of the above-mentioned air-conditioning digital twin product development method, the boundary conditions include any one or more of the physical size, shape, structure and connection method.

[0025] In the specific implementation of the above-mentioned method for developing a digital twin product of an air conditioner, in the adjustment under the same conditions, the next adjustment is made based on the previous adjustment.

[0026] The present invention also provides a method for developing a digital twin product of an air conditioner, the method comprising the following steps:

[0027] Obtaining the improved 3D model and material parameters of the part;

[0028] Importing the material parameters into the three-dimensional model to obtain a three-dimensional model with parameters;

[0029] Performing simulation analysis on the three-dimensional model with parameters to obtain a first theoretical value of the vibration noise parameter of the part;

[0030] Acquire a first actual value of the vibration noise parameter of the part before improvement;

[0031] Determining whether a first ratio of the first theoretical value to the first actual value exceeds a first accuracy value;

[0032] If yes, adjusting the material parameters and re-obtaining the first theoretical value, otherwise assembling the parts to obtain an improved component;

[0033] Obtaining a second theoretical value of the improved vibration and noise parameter of the component;

[0034] Acquire a second actual value of the vibration and noise parameter of the component before improvement;

[0035] determining whether a second ratio of the second theoretical value to the second actual value does not exceed a second accuracy value;

[0036] If yes, output the improved part and the improved component, otherwise obtain the assembly relationship of the improved component;

[0037] Obtaining boundary conditions of the assembly relationship;

[0038] The boundary condition is adjusted to obtain the second theoretical value again.

[0039] The present invention also provides a medium, which stores a program corresponding to the method for developing a digital twin product of an air conditioner as described in any of the above items.

[0040] The present invention also provides a device, comprising a controller, and the controller applies the method for developing a digital twin product of an air conditioner as described in any one of the above items.

[0041] The beneficial effect of the development method of an air-conditioning digital twin product provided by the present invention is that the development method provided by the present invention can not only develop new products from the part level, but also develop new products from the component level. The most cost-effective technical solution can be selected in the early stage of the new product, thereby reducing the R&D cycle and cost and improving the R&D efficiency.

[0042] Furthermore, in the research and development stage at the parts level, multiple parts that meet the precision requirements can be provided, and then in the research and development stage at the component level, multiple sets of feasible technical solutions are provided, and finally the twin mode of air-conditioning products is realized. According to the actual working conditions, the technical solution that better meets the requirements can be selected, which provides more options for R&D personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0044] Figure 1 It is a logic diagram of the development method of the air conditioner digital twin product provided by the present invention;

[0045] Figure 2 It is a logic diagram of the first theoretical value acquisition step in the method for developing a digital twin product of an air conditioner provided by the present invention;

[0046] Figure 3 It is a logic diagram of the improved component adjustment steps in the development method of the air conditioner digital twin product provided by the present invention;

[0047] Figure 4 It is a detailed logic diagram of the development method of the air-conditioning digital twin product provided by the present invention. DETAILED DESCRIPTION

[0048] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the relevant devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, ordinal numbers such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0049] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0001] like Figure 1 As shown, the present invention proposes a method for developing a digital twin product of an air conditioner, and the development method comprises the following steps:

[0002] Step S1: obtaining a first theoretical value of a vibration noise parameter of an improved part;

[0003] Step S2: obtaining a first actual value of a vibration noise parameter of the part before improvement;

[0004] Step S3: determining whether a first ratio of the first theoretical value to the first actual value exceeds a first accuracy value;

[0005] Step S4: when the first ratio does not exceed the first accuracy value, assembling the parts to obtain an improved component;

[0006] Step S5: obtaining a second theoretical value of the vibration noise parameter of the improved component;

[0007] Step S6: obtaining a second actual value of the vibration noise parameter of the component before improvement;

[0008] Step S7: determining whether a second ratio of the second theoretical value to the second actual value does not exceed a second accuracy value;

[0009] Step S8: If yes, output the improved part and the improved component, otherwise adjust the improved component to regain the second theoretical value.

[0010] In this embodiment, when the product is in the research and development stage, the parts can be improved. The improvement of the parts mainly has two aspects. On the one hand, the structure of the parts is changed, that is, the three-dimensional model of the parts is changed, and on the other hand, the material of the parts is changed, that is, different materials are given to the parts. After the parts are improved, the first theoretical value of the vibration and noise parameters can be obtained in the software, and then the first actual value of the vibration and noise parameters of the parts before the improvement is obtained. The first ratio is obtained by comparing the first theoretical value with the first actual value, and it is judged whether the first ratio exceeds the first precision value. When the first ratio does not exceed the first precision value, the improved parts are assembled to form improved components. The second theoretical value of the vibration and noise parameters of the improved components is obtained in the software, and then the second actual value of the vibration and noise parameters of the components before the improvement is obtained, and then the second theoretical value and the second actual value are compared to obtain the second ratio, and it is judged whether the second ratio does not exceed the second precision value. When the second ratio does not exceed the second precision value, the improved parts and the improved components are output; when the second ratio exceeds the second precision value, the improved components need to be adjusted, and then the second theoretical value is obtained again.

[0011] When multiple parts are improved, it is necessary to judge the first ratio and the first precision value for each part, so as to obtain improved parts that meet the requirements. When the improved parts are obtained, multiple parts that meet the second precision value requirements can be obtained through multiple adjustments. By matching the combination of multiple parts, multiple sets of products that meet the requirements can be formed for R&D personnel to choose. The development method provided by the present invention not only reduces R&D costs and shortens R&D time, but also provides R&D personnel with multiple sets of feasible technical solutions, expands the scope of options, and is more conducive to making choices from the perspective of actual working conditions.

[0012] The development method provided by the present invention can provide multiple parts, multiple components and multiple products, realizing a twin series of air-conditioning products with the same function, that is, for a certain existing air-conditioning product, there are multiple different technical solutions that can achieve the same technical effect.

[0013] It should be noted that the functions of the parts before and after the improvement are the same or partially overlapped. That is, the improved parts cannot be completely unrelated to the parts before the improvement. Similarly, the functions of the parts after and before the improvement are also the same or partially overlapped, and cannot be completely unrelated.

[0014] It should be noted that the first theoretical value of the vibration noise parameter of the part may be the natural frequency.

[0015] It should be noted that the first accuracy value and the second accuracy value are determined according to the actual needs of the research and development process and the actual feedback of the finished product. For example, after the product passes the research and development stage, in order to ensure that the product can achieve the expected effect and does not reduce the customer experience, its usage can be recorded in actual applications. According to the feedback, the product is re-developed. At this time, the first accuracy value and the second accuracy value often need to be adjusted to obtain more optional technical solutions that meet the requirements. Usually the first accuracy value is selected as 100% ± 1%, and the second accuracy value is selected as 100% ± 2%.

[0016] Further, when the first ratio exceeds a first accuracy value, the material parameter is adjusted and the first theoretical value is reacquired.

[0017] In this embodiment, after the parts are improved, since there are many optional conditions, some of the improved parts will not meet the requirements, that is, when the first ratio exceeds the first accuracy value, it is necessary to adjust the material parameters and re-acquire the first theoretical value. Adjustments at the part level are usually the structure and material of the parts. Since structural adjustments often bring about modifications to the matching parts, it is preferred to adjust the materials of the parts. In simulation and analysis, it is only necessary to retrieve different material parameters from the existing material database to complete the replacement of the material of the parts, thereby making the parts have different vibration and noise parameters in simulation and analysis. This adjustment method can further shorten the R&D time and reduce R&D costs.

[0018] It should be noted that the parts can also be improved by changing the 3D model without changing the material parameters. This form of improvement is equivalent to changing the material without changing the 3D model.

[0019] Further, if Figure 2 As shown, the step of "obtaining the first theoretical value of the vibration noise parameter of the improved part" includes the following:

[0020] Step S11: obtaining the improved three-dimensional model and material parameters of the part;

[0021] Step S12: importing the material parameters into the three-dimensional model to obtain a three-dimensional model with parameters;

[0022] Step S13: performing simulation analysis on the three-dimensional model with parameters to obtain a first theoretical value of the vibration and noise parameters of the improved part.

[0023] In this embodiment, in this step, it is first necessary to obtain the three-dimensional model of the improved part, and the way to obtain it is to model it in the software, and add the modeled three-dimensional model to the model database for storage. Then select material parameters from the existing material database, and after the selection is completed, substitute the material parameters into the three-dimensional model, and obtain a three-dimensional model with parameters, and then simulate the three-dimensional model with parameters in the software, and obtain the first theoretical value of the vibration and noise parameters of the improved part after the simulation. Obtaining the first theoretical value in this way can reduce R&D costs, improve R&D efficiency, and can also be operated in multiple threads. For example, select multiple parts and multiple material parameters, and then combine and match them. The matched three-dimensional model with parameters can be simulated on different computers at the same time.

[0024] Furthermore, finite element analysis or virtual prototype technology is used to perform simulation analysis on the three-dimensional model with parameters.

[0025] In this embodiment, the use of finite element analysis when simulating parts has the following advantages: first, various structures with complex geometric shapes can be simulated so that the parts will not be greatly restricted when they are improved; second, finite element analysis can be combined with optimization design. The combination of the two can greatly improve the accuracy of the direction of part improvement, thereby avoiding a lot of ineffective working time.

[0026] When simulating parts, the use of virtual prototype technology has the following benefits: First, by using virtual prototype technology, parts can be simulated and simulated, problems can be discovered and solved in the early stages, reducing the time for later modifications and rework, and ultimately greatly improving R&D efficiency; secondly, virtual prototype technology supports collaboration between multiple departments and teams, promotes information sharing and exchange, and improves the team's collaboration efficiency in the R&D stage.

[0027] Further, if Figure 3 As shown, the step of “otherwise adjusting the improved component to regain the second theoretical value” includes the following:

[0028] Step S81: obtaining the assembly relationship of the improved components;

[0029] Step S82: obtaining the boundary conditions of the assembly relationship;

[0030] Step S83: adjusting the boundary condition to reacquire the second theoretical value.

[0031] In this embodiment, when adjusting the improved component, the following steps are specifically included: first, the assembly relationship of the improved component is obtained, and then the boundary conditions of the assembly relationship are obtained, and the improved component that meets the second precision value requirement is obtained by adjusting the boundary conditions of the assembly relationship.

[0032] Among them, during the adjustment process, for relatively static assembly relationships, boundary conditions can be adjusted from the perspective of shape, size and position. For relatively moving assembly relationships, boundary conditions can be adjusted from the perspective of the interaction between parts. It should be noted that the specific boundary conditions may vary depending on the specific components and their application environment. In actual operation, they need to be adjusted according to specific circumstances and relevant regulations.

[0033] Furthermore, the boundary conditions include any one or more of physical size, shape, structure and connection mode.

[0034] For the adjustment of boundary conditions, you can choose one or several. This selection method often needs to be based on the experience of R&D personnel. When multiple departments collaborate on R&D, you can choose to carry out multiple items at the same time. Carrying out multiple items at the same time can find a better technical solution faster and make the improvement direction of parts and components clearer.

[0035] It should be noted that changes in connection methods are usually determined after discussions among multiple departments. For example, when the connection method is changed from welding to threaded connection, not only the R&D department but also the assembly department needs to be considered. Therefore, changes in connection methods are usually made last, that is, when a satisfactory technical solution cannot be obtained after adjusting other conditions, the connection method can be adjusted last.

[0036] Furthermore, in adjustments under the same conditions, the next adjustment is made on the basis of the previous adjustment.

[0037] In this embodiment, during the adjustment process, for the same parameter, the next adjustment is performed on the basis of the previous adjustment. For example, during the adjustment process, in order to see the impact of the same parameter on the result, a "single variable" adjustment method is adopted, that is, only the same parameter is adjusted, so that the direction of component improvement or optimization can be quickly known, thereby improving the improvement efficiency of the component.

[0038] like Figure 4As shown, the present invention provides a method for developing a digital twin product of an air conditioner, and the development method comprises the following steps:

[0039] Step M1: Obtaining the three-dimensional model and material parameters of the improved part;

[0040] Step M2: importing the material parameters into the three-dimensional model to obtain a three-dimensional model with parameters;

[0041] Step M3: performing simulation analysis on the three-dimensional model with parameters to obtain a first theoretical value of the vibration noise parameter of the part;

[0042] Step M4: obtaining a first actual value of the vibration noise parameter of the part before improvement;

[0043] Step M5: determining whether a first ratio of the first theoretical value to the first actual value exceeds a first accuracy value;

[0044] Step M6: If yes, adjust the material parameters and re-obtain the first theoretical value, otherwise assemble the parts to obtain an improved component;

[0045] Step M7: obtaining a second theoretical value of the improved vibration and noise parameter of the component;

[0046] Step M8: obtaining a second actual value of the vibration and noise parameter of the component before improvement;

[0047] Step M9: determining whether a second ratio of the second theoretical value to the second actual value does not exceed a second accuracy value;

[0048] Step M10: if yes, output the improved part and the improved component, otherwise obtain the assembly relationship of the improved component;

[0049] Step M11: obtaining the boundary conditions of the assembly relationship;

[0050] Step M12: adjusting the boundary condition to re-obtain the second theoretical value.

[0051] The beneficial effect of the development method of an air-conditioning digital twin product provided by the present invention is that the development method provided by the present invention can not only develop new products from the part level, but also develop new products from the component level. The most cost-effective technical solution can be selected in the early stage of the new product, thereby reducing the R&D cycle and cost and improving the R&D efficiency.

[0052] Furthermore, in the research and development stage at the parts level, multiple parts that meet the precision requirements can be provided, and in the research and development stage at the component level, multiple sets of feasible technical solutions are provided. According to the actual working conditions, a technical solution that better meets the requirements can be selected, providing more options for R&D personnel.

[0053] The present invention also provides a medium, which stores a program corresponding to the development method of any one of the above-mentioned air-conditioning digital twin products.

[0054] The medium provided by the present invention is used to store the program corresponding to the development method. Usually, these media can be selected as common storage such as optical disks, hard disks, chips, and memory cards. It can also be selected to be stored on a remote server to realize "cloud storage". During each use process, the user needs to send a request to the remote server through the client, and the remote server responds to the request. After the response, the response is deleted to realize the protection of the program.

[0055] The present invention also provides a device, comprising a controller, and the controller applies the development method of an air-conditioning digital twin product described in any one of the above-mentioned methods.

[0056] The device provided by the present invention is mainly a parking air conditioner, and the parking air conditioner includes a controller, and the controller can apply the above-mentioned development method.

[0057] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A method for developing a digital twin product of an air conditioner, characterized in that: The development method comprises the following steps: Obtaining a first theoretical value of a vibration noise parameter of the improved part; Acquire a first actual value of a vibration noise parameter of the part before improvement; Determining whether a first ratio of the first theoretical value to the first actual value exceeds a first accuracy value; When the first ratio does not exceed the first accuracy value, assembling the parts to obtain an improved component; Obtaining a second theoretical value of the vibration and noise parameter of the improved component; Acquire a second actual value of a vibration noise parameter of the component before improvement; determining whether a second ratio of the second theoretical value to the second actual value does not exceed a second accuracy value; If yes, the improved part and the improved component are outputted; otherwise, the improved component is adjusted to obtain the second theoretical value again.

2. The method for developing a digital twin product of an air conditioner according to claim 1, characterized in that: When the first ratio exceeds the first accuracy value, the material parameter is adjusted and the first theoretical value is reacquired.

3. The method for developing a digital twin product of an air conditioner according to claim 1 or 2, characterized in that: The step of "obtaining the first theoretical value of the vibration noise parameter of the improved part" includes the following: Obtaining the improved 3D model and material parameters of the part; Importing the material parameters into the three-dimensional model to obtain a three-dimensional model with parameters; The three-dimensional model with parameters is simulated and analyzed to obtain the first theoretical value of the vibration and noise parameters of the improved part.

4. The method for developing a digital twin product of an air conditioner according to claim 3, characterized in that: Finite element analysis or virtual prototype technology is used to complete simulation analysis on the three-dimensional model with parameters.

5. The method for developing a digital twin product of an air conditioner according to claim 1 or 2, characterized in that: The step of "otherwise adjusting the improved component to re-obtain the second theoretical value" comprises the following: Obtaining the assembly relationship of the improved components; Obtaining boundary conditions of the assembly relationship; The boundary condition is adjusted to obtain the second theoretical value again.

6. The method for developing a digital twin product of an air conditioner according to claim 5, characterized in that: The boundary conditions include any one or more of physical size, shape, structure and connection mode.

7. The method for developing a digital twin product of an air conditioner according to claim 6, characterized in that: In adjustments under the same conditions, the next adjustment will be made based on the previous adjustment.

8. A method for developing a digital twin product of an air conditioner, characterized in that: The development method comprises the following steps: Obtaining the improved 3D model and material parameters of the part; Importing the material parameters into the three-dimensional model to obtain a three-dimensional model with parameters; Performing simulation analysis on the three-dimensional model with parameters to obtain a first theoretical value of the vibration noise parameter of the part; Acquire a first actual value of the vibration noise parameter of the part before improvement; Determining whether a first ratio of the first theoretical value to the first actual value exceeds a first accuracy value; If yes, adjusting the material parameters and re-obtaining the first theoretical value, otherwise assembling the parts to obtain an improved component; Obtaining a second theoretical value of the improved vibration and noise parameter of the component; Acquire a second actual value of the vibration and noise parameter of the component before improvement; determining whether a second ratio of the second theoretical value to the second actual value does not exceed a second accuracy value; If yes, output the improved part and the improved component, otherwise obtain the assembly relationship of the component; Obtaining boundary conditions of the assembly relationship; The boundary condition is adjusted to obtain the second theoretical value again.

9. A medium, characterized in that The medium stores a program corresponding to the method for developing an air-conditioning digital twin product according to any one of claims 1 to 8.

10. A device, comprising a controller, characterized in that: The controller applies the method for developing a digital twin product of an air conditioner according to any one of claims 1 to 8.

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