Tire-rim contact pressure adjustment method, device and electronic equipment

Abstract

The present application discloses a tire-rim contact pressure adjustment method, device and electronic device. The method includes: obtaining a tire design drawing, and determining a tire simulation model based on the tire design drawing; determining simulation working conditions, and determining the performance requirement index corresponding to the contact pressure between the tire bead and the rim under various simulation working conditions, wherein the performance requirement index is used to indicate the pressure distribution state that the contact pressure corresponding to the tire under the simulation working conditions should meet; obtaining the contact pressure distribution data between the tire bead and the rim collected when the tire simulation model is simulated under the simulation working conditions; when the contact pressure distribution data does not meet the performance requirement index corresponding to the simulation working conditions, adjusting the contact design parameters between the tire bead and the rim in the tire simulation model. The present application solves the technical problems of low efficiency and poor effect of the contact pressure evaluation method in the related art.

Description

Technical Field

[0001] The present application relates to the technical field of tire design and simulation, and in particular to a tire-rim contact pressure adjustment method, device and electronic equipment. Background Art

[0002] In the process of tire design and development, it is crucial to ensure that the contact pressure between the tire bead and the rim is within a reasonable range. This contact pressure not only directly affects the sealing and durability of the tire, but also the safety of tire use.

[0003] However, in the tire design process of related technologies, the contact pressure between the tire bead and the rim is not effectively evaluated and controlled, or it is implemented by relying on traditional physical tests, empirical formulas or simplified calculation models. There are problems such as low efficiency and poor effect of the contact pressure evaluation method.

[0004] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0005] The embodiments of the present application provide a tire-rim contact pressure adjustment method, device and electronic device to at least solve the technical problems of low efficiency and poor effect of contact pressure evaluation methods in related technologies.

[0006] According to one aspect of an embodiment of the present application, a tire-rim contact pressure adjustment method is provided, comprising: obtaining a tire design drawing, and determining a tire simulation model based on the tire design drawing, wherein the tire design drawing is used to at least characterize the rim model and bare bead style in the tire; determining simulation working conditions, and determining performance requirement indicators corresponding to the contact pressure between the bead and the rim under various simulation working conditions, wherein the performance requirement indicators are used to indicate the pressure distribution state that the contact pressure corresponding to the tire under the simulation working conditions should satisfy; obtaining contact pressure distribution data between the bead and the rim collected when the tire simulation model is simulated under the simulation working conditions; and adjusting the contact design parameters between the bead and the rim in the tire simulation model when the contact pressure distribution data does not satisfy the performance requirement indicators corresponding to the simulation working conditions.

[0007] Optionally, determining the simulated operating conditions includes: determining standard operating conditions, wherein the operating conditions include at least one of the following: inflation pressure, load, and sideslip angle, and the standard operating conditions are the benchmark operating conditions corresponding to the tire when it is designed; determining an operating condition expansion proportional coefficient, wherein a maximum value among multiple operating condition expansion proportional coefficients is greater than 1 and a minimum value is less than 1; based on the operating condition expansion proportional coefficient, expanding the standard operating condition to obtain multiple simulated operating conditions, wherein each operating condition expansion proportional coefficient corresponds to a simulated operating condition.

[0008] Optionally, determining the performance requirement index corresponding to the contact pressure between the tire bead and the rim under various simulation working conditions includes: determining the lower limit threshold of the average value corresponding to the contact pressure under the simulation working conditions, wherein the performance requirement index includes: the average value of the contact pressure at each position around the area where the tire bead contacts the rim should be greater than the lower limit threshold of the average value; determining the first threshold interval range corresponding to the maximum value of the contact pressure under the simulation working conditions and the second threshold interval range corresponding to the second maximum value, wherein the performance requirement index also includes: the maximum value of the contact pressure at each position around the area where the tire bead contacts the rim should be within the first threshold interval range, and the second maximum value should be within the second threshold interval range, the maximum value is the contact pressure value corresponding to the highest peak point on the contact pressure distribution curve, the second maximum value is the contact pressure value corresponding to the second highest peak point on the contact pressure distribution curve, and the contact pressure distribution curve is used to characterize the contact pressure corresponding to different positions around the area where the tire bead contacts the rim.

[0009] Optionally, the performance requirement index also includes: the order in which the maximum value and the second maximum value appear in the contact pressure distribution curve; the contact pressure distribution data includes the contact pressure at each position on a circle of the area where the tire bead contacts the rim; after obtaining the contact pressure distribution data between the tire bead and the rim collected when the tire simulation model performs simulation under the simulation working condition, the method also includes: determining the average value of the contact pressure under the simulation working condition based on the contact pressure distribution data; determining the contact pressure distribution curve based on the contact pressure distribution data, and judging whether there is a maximum value and a second maximum value based on the contact pressure distribution curve; when the average value of the contact pressure is not greater than the lower limit threshold of the average value specified in the performance requirement index, or the maximum value and the second maximum value do not exist in the contact pressure distribution curve, or the maximum value is not within the first threshold interval, or the second maximum value is not within the second threshold interval, or the order in which the maximum value and the second maximum value appear on the contact pressure distribution curve is inconsistent with the order specified in the performance requirement index, it is determined that the contact pressure distribution data does not meet the performance requirement index corresponding to the simulation working condition.

[0010] Optionally, adjusting the contact design parameters between the tire bead and the rim in the tire simulation model includes: translating the tire bead a preset distance in a preset direction based on the center of mass of the tire bead, wherein the preset direction includes at least one of the following: a vertical direction, a direction perpendicular to the rolling direction of the tire on a horizontal plane; and / or adjusting the installation angle of the tire bead relative to the rim according to a preset adjustment angle.

[0011] Optionally, the method further includes: determining the relative position relationship between the tire bead and the tire cord; and in the process of adjusting the tire bead, synchronously adjusting the cord so that the relative position relationship between the tire bead and the cord remains unchanged.

[0012] Optionally, after adjusting the contact design parameters between the bead and the rim in the tire simulation model, the method also includes: obtaining contact pressure distribution data collected by simulating the adjusted tire simulation model under simulated working conditions; re-determining whether the contact pressure distribution data meets the performance requirement indicators, and if the contact pressure distribution data does not meet the performance requirement indicators, continuing to adjust the contact design parameters between the bead and the rim in the tire simulation model until the contact pressure distribution data meets the performance requirement indicators.

[0013] According to another aspect of an embodiment of the present application, a tire-rim contact pressure adjustment device is also provided, including: a model building module, used to obtain a tire design drawing, and determine a tire simulation model based on the tire design drawing, wherein the tire design drawing is at least used to characterize the rim model and bare bead style in the tire; a working condition setting module, used to determine the simulation working condition conditions, and determine the performance requirement index corresponding to the contact pressure between the bead and the rim under various simulation working conditions, wherein the performance requirement index is used to indicate the pressure distribution state that the contact pressure corresponding to the tire under the simulation working condition should satisfy; a simulation module, used to obtain the contact pressure distribution data between the bead and the rim collected when the tire simulation model is simulated under the simulation working condition conditions; an optimization adjustment module, used to adjust the contact design parameters between the bead and the rim in the tire simulation model when the contact pressure distribution data does not satisfy the performance requirement index corresponding to the simulation working condition conditions.

[0014] According to another aspect of the embodiment of the present application, there is also provided an electronic device, including: a memory and a processor, the processor being configured to run a program stored in the memory, wherein the tire-rim contact pressure adjustment method is executed when the program is run.

[0015] According to another aspect of the embodiment of the present application, a non-volatile storage medium is provided, the non-volatile storage medium includes a stored computer program, wherein the device where the non-volatile storage medium is located executes the tire-rim contact pressure adjustment method by running the computer program.

[0016] According to another aspect of the embodiments of the present application, a computer program product is provided, including a computer program, which implements the steps of the tire-rim contact pressure adjustment method when the computer program is executed by a processor.

[0017] In an embodiment of the present application, a tire design drawing is obtained, and a tire simulation model is determined based on the tire design drawing, wherein the tire design drawing is used to characterize at least the rim model and the bare bead style in the tire; a simulation working condition is determined, and a performance requirement index corresponding to the contact pressure between the bead and the rim under various simulation working conditions is determined, wherein the performance requirement index is used to indicate the pressure distribution state that the contact pressure corresponding to the tire under the simulation working condition should satisfy; contact pressure distribution data between the bead and the rim collected when the tire simulation model is simulated under the simulation working condition is obtained; when the contact pressure distribution data does not satisfy the performance requirement index corresponding to the simulation working condition, the contact design parameters between the bead and the rim in the tire simulation model are adjusted. By integrating advanced simulation algorithms and real-time feedback mechanisms, the purpose of achieving comprehensive and dynamic evaluation and optimization of tire contact pressure under different working conditions is achieved, thereby solving the technical problems of low efficiency and poor effect of contact pressure evaluation methods in related technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 It is a hardware structure block diagram of a computer terminal (or electronic device) for implementing a method for adjusting tire-rim contact pressure according to an embodiment of the present application;

[0020] Figure 2 is a schematic diagram of a method flow for adjusting tire-rim contact pressure provided according to an embodiment of the present application;

[0021] Figure 3 It is a schematic diagram of a product optimization method flow for adaptive adjustment of tire-rim contact pressure provided in accordance with an embodiment of the present application;

[0022] Figure 4 It is a schematic diagram of a first wheel design of a 750 / 65R25 tire provided according to an embodiment of the present application;

[0023] Figure 5 It is a schematic diagram of a tire finite element simulation 2D model constructed according to a first wheel design drawing of a 750 / 65R25 tire provided in an embodiment of the present application;

[0024] Figure 6 According to an embodiment of the present application, Figure 5 The schematic diagram of the 3D model after the 2D model is rotated a full circle;

[0025] Figure 7It is a schematic diagram comparing design drawings before and after optimization provided in an embodiment of the present application;

[0026] Figure 8 It is a schematic diagram comparing result data before and after optimization under standard air pressure inflation provided in an embodiment of the present application;

[0027] Fig. 9 It is a schematic diagram for comparing result data before and after optimization under a standard load provided in an embodiment of the present application;

[0028] Fig.10 It is a structural schematic diagram of a tire-rim contact pressure adjustment device provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0031] With the continuous advancement of vehicle technology and the increasing complexity of road conditions, the requirements for tire performance are becoming higher and higher, and the traditional evaluation and adjustment methods in related technologies are gradually showing their limitations. Especially in the case of rapid product iteration, solving the tire-rim contact problem faster means it is easier to improve product strength and quickly occupy the market.

[0032] In the related art, the method of evaluating the contact pressure between the tire and the rim is significantly limited by the limitation of its single evaluation. It can only provide a contact pressure profile in a static scenario each time, forcing engineers to approach the ideal state through repeated manual adjustments and tests. This process is not only time-consuming and labor-intensive, but also inefficient. More importantly, in the face of the complex and changeable working conditions encountered by tires in actual operation (including but not limited to changes in vehicle speed, load differences, strong lateral forces when turning, and diverse road conditions, etc.), the evaluation methods in the related art seem to be unable to cope with it. They are often limited to static analysis under specific working conditions, unable to capture and predict the true behavior of tires in dynamic environments, resulting in a lack of foresight and accuracy in design decisions.

[0033] In order to solve the above problems, relevant solutions are provided in the embodiments of the present application, which are described in detail below.

[0034] According to an embodiment of the present application, a method embodiment of tire-rim contact pressure adjustment is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0035] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Figure 1 FIG. 1 shows a hardware structure block diagram of a computer terminal (or electronic device) for implementing a tire-rim contact pressure adjustment method. Figure 1 As shown, the computer terminal 10 (or electronic device) may include one or more (102a, 102b, ..., 102n are used to illustrate) processors 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 104 for storing data, and a transmission device 106 for communication functions. In addition, it may also include: a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of the BUS bus), a network interface, a power supply and / or a camera. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above electronic device. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0036] It should be noted that the one or more processors 102 and / or other data processing circuits described above may generally be referred to herein as "data processing circuits". The data processing circuits may be embodied in whole or in part as software, hardware, firmware, or any other combination thereof. In addition, the data processing circuit may be a single independent processing module, or may be incorporated in whole or in part into any of the other components in the computer terminal 10 (or electronic device). As described in the embodiments of the present application, the data processing circuit acts as a processor control (e.g., selection of a variable resistor terminal path connected to an interface).

[0037] The memory 104 can be used to store software programs and modules of application software, such as the program instructions / data storage device corresponding to the tire-rim contact pressure adjustment method in the embodiment of the present application. The processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104, that is, the above-mentioned tire-rim contact pressure adjustment method is realized. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the computer terminal 10 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof.

[0038] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the computer terminal 10. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0039] The display may be, for example, a touch screen liquid crystal display (LCD) that enables a user to interact with a user interface of the computer terminal 10 (or electronic device).

[0040] Under the above operating environment, the embodiment of the present application provides a tire-rim contact pressure adjustment method. Figure 2 is a schematic diagram of a method flow for adjusting tire-rim contact pressure according to an embodiment of the present application, such as Figure 2 As shown, the method comprises the following steps:

[0041] Step S202, obtaining a tire design drawing, and determining a tire simulation model according to the tire design drawing, wherein the tire design drawing is used to characterize at least a rim model and a bare bead style in the tire;

[0042] Step S204, determining the simulated working condition, and determining the performance requirement index corresponding to the contact pressure between the tire bead and the rim under various simulated working conditions, wherein the performance requirement index is used to indicate the pressure distribution state that the contact pressure corresponding to the tire should satisfy under the simulated working condition;

[0043] Step S206, obtaining the contact pressure distribution data between the tire bead and the rim collected when the tire simulation model performs simulation under the simulation working condition;

[0044] Step S208: When the contact pressure distribution data does not meet the performance requirement index corresponding to the simulation working condition, the contact design parameters between the bead and the rim in the tire simulation model are adjusted.

[0045] Through the above steps, the limitations of the evaluation in related technologies have been overcome. By integrating advanced simulation algorithms and real-time feedback mechanisms, the goal of comprehensive and dynamic evaluation and optimization of tire contact pressure under different working conditions has been achieved, thereby solving the technical problems of low efficiency and poor effect of contact pressure evaluation methods in related technologies. It can not only efficiently simulate and determine the dynamic contact pressure changes of tires in various complex environments, but also automatically adjust design parameters through rapid iterations to achieve optimal contact pressure distribution at minimum cost, significantly improving evaluation efficiency and accuracy.

[0046] At the same time, the evaluation method of this application supports real-time data collection and analysis, can quickly respond to design changes, and complete multiple rounds of evaluation and optimization cycles in a short period of time. This rapid iteration capability enables the tire design team to discover and solve problems earlier, accelerate the process of products from concept to market, and ensure that the product has excellent performance during the design stage. Ultimately, this not only reduces product development costs, but also greatly improves the market competitiveness of products and meets the market's urgent demand for high-performance and high-safety tires.

[0047] The following is a further introduction to the tire-rim contact pressure adjustment method in steps S202 to S208 of the embodiment of the present application.

[0048] Figure 3 is a schematic diagram of a product optimization method flow for adaptively adjusting tire-rim contact pressure according to an embodiment of the present application, such as Figure 3 shown.

[0049] First, obtain the tire design drawing, and determine the tire simulation model based on the tire design drawing. Specifically, a finite element simulation model of the tire can be constructed based on the high-precision CAD data of the tire design drawing. In the process of constructing the tire simulation model, it is necessary to ensure that the basic design requirements of the tire are fully integrated into the model, including but not limited to: compatible rim models, bare bead styles (such as quadrilateral, hexagonal, circular, trapezoidal, etc.) and their arrangement details.

[0050] For example, in this embodiment, a tire with a specification of 750 / 65R25 is used as an example. First, a design drawing of a tire with a specification of 750 / 65R25 is obtained. Figure 4 As shown, 1 corresponds to the bare tire bead and 2 corresponds to the rim; then based on the high-precision CAD data, a Figure 5 The tire finite element simulation model shown is used to obtain the tire simulation model corresponding to this tire model. In the model, the compatible rim model of the tire is 24.00 / 3.0, the bare bead style is hexagonal, and the arrangement is slightly.

[0051] Then, the simulation working conditions required for testing the tire simulation model are determined, and the specific steps are as follows.

[0052] In some embodiments of the present application, determining the simulated operating conditions includes the following steps: determining standard operating conditions, wherein the operating conditions include at least one of the following: inflation pressure, load, and sideslip angle, and the standard operating conditions are the benchmark operating conditions corresponding to the tire when it is designed; determining an operating condition expansion proportional coefficient, wherein the maximum value of multiple operating condition expansion proportional coefficients is greater than 1 and the minimum value is less than 1; based on the operating condition expansion proportional coefficient, the standard operating condition is expanded to obtain multiple simulated operating conditions, wherein each operating condition expansion proportional coefficient corresponds to a simulated operating condition.

[0053] Specifically, in this embodiment, various typical and extreme working conditions including inflation, loading (load), and side deviation can be set, and different percentage differences (i.e., the above-mentioned working condition expansion ratio coefficient) can be set between each working condition to fully simulate the actual use scenario. For example, for a 750 / 65R25 tire, inflation and loading working conditions can be set. First, the standard working condition is set, including: standard inflation pressure 625kPa, standard load 18500kg; since the use environment of the tire product is loose, it is not necessary to study the extreme working conditions; then, a percentage difference (the above-mentioned working condition expansion ratio coefficient) ranging from 50% to 150% is set between each working condition to expand the standard working condition, and multiple simulation working conditions are obtained, that is, the minimum inflation pressure in the simulation working condition is 625*50%kPa, the maximum inflation pressure is 625*150%kPa, and the load is the same, so as to fully simulate the actual use scenario.

[0054] After the simulation working conditions are determined, the simulation working conditions can be submitted to the model for finite element simulation, so as to obtain detailed tire bead-rim contact pressure distribution data. In this embodiment, the collection range of the contact pressure distribution data includes the contact pressure at each position on the contact area between the bead and the rim, that is, the whole circle value of the point on the contact area between the tire and the rim, where the whole circle is used. Figure 5 The plane model shown rotates around the rotation axis, as shown in Figure 6 shown.

[0055] After obtaining the contact pressure distribution data between the tire bead and the rim collected during the simulation, we will further determine whether the current tire design meets the performance requirements. At this time, we need to first determine the evaluation threshold system for the contact between the tire bead and the rim under various simulation conditions. The specific steps are as follows.

[0056] In some embodiments of the present application, determining the performance requirement index corresponding to the contact pressure between the tire bead and the rim under various simulation conditions includes the following steps: determining the lower limit threshold of the average value corresponding to the contact pressure under the simulation conditions, wherein the performance requirement index includes: the average value of the contact pressure at each position on a circle of the area where the tire bead contacts the rim should be greater than the lower limit threshold of the average value; determining the first threshold interval range corresponding to the maximum value of the contact pressure under the simulation conditions and the second threshold interval range corresponding to the second maximum value, wherein the performance requirement index also includes: the maximum value of the contact pressure at each position on a circle of the area where the tire bead contacts the rim should be within the first threshold interval range, and the second maximum value should be within the second threshold interval range, the maximum value is the contact pressure value corresponding to the highest peak point on the contact pressure distribution curve, the second maximum value is the contact pressure value corresponding to the second highest peak point on the contact pressure distribution curve, and the contact pressure distribution curve is used to characterize the contact pressure corresponding to different positions on a circle of the area where the tire bead contacts the rim. In addition, the performance requirement index also includes: the order in which the maximum value and the second maximum value appear in the contact pressure distribution curve;

[0057] Specifically, in this embodiment, the above-mentioned performance requirement indicators include but are not limited to: the lower limit threshold of the average value of the contact pressure at each position on a circle of the area where the tire bead contacts the rim, the upper and lower limits of the maximum value and the second maximum value (if any) (i.e., the first threshold interval range corresponding to the above-mentioned maximum value and the second threshold interval range corresponding to the second maximum value), and the order of appearance of the maximum value and the second maximum value (i.e., the order in which the maximum value and the second maximum value appear in the contact pressure distribution curve).

[0058] It should be noted that, in this embodiment, the above contact pressure distribution curve is used to characterize the Figure 7 Starting from the data starting position shown in , move clockwise along the frame line, and the contact pressure values ​​corresponding to each position passed through are, for example, Figure 8 , Fig. 9 The horizontal axis in represents the distance between each position and the starting position of the data.

[0059] For example, for a tire with a specification of 750 / 65R25, the performance requirement indicators determined in the embodiment of the present application are as follows: the average value of the contact pressure under standard loading is not less than 2.55 MPa (the lower limit threshold of the average value); it must be ensured that the maximum value and the second maximum value appear in the results of inflation and loading; the maximum value range under standard inflation is 6-9 MPa (the first threshold interval range); the next maximum value range under standard inflation is 2-5 MPa (the second threshold interval range); the maximum value range under standard loading is 7-10 MPa (the first threshold interval range); the next maximum value range under standard loading is 2-5 MPa (the second threshold interval range); the maximum value appears earlier than the second maximum value.

[0060] After determining the performance requirement indicators corresponding to the simulation working conditions, the simulation results (i.e., contact pressure distribution data) can be automatically compared with the judgment threshold (i.e., performance requirement indicators) to determine whether the current tire design is qualified. The specific steps are as follows.

[0061] In some embodiments of the present application, the contact pressure distribution data includes contact pressure at various positions around the area where the tire bead contacts the rim; after obtaining the contact pressure distribution data between the tire bead and the rim when the tire simulation model performs simulation under simulation working conditions, the method further includes the following steps: determining the average value of the contact pressure under the simulation working conditions based on the contact pressure distribution data; determining the contact pressure distribution curve based on the contact pressure distribution data, and judging whether there is a maximum value and a sub-maximum value based on the contact pressure distribution curve; when the average value of the contact pressure is not greater than the lower limit threshold of the average value specified in the performance requirement index, or the maximum value and the sub-maximum value do not exist in the contact pressure distribution curve, or the maximum value is not within the first threshold interval, or the sub-maximum value is not within the second threshold interval, or the order in which the maximum value and the sub-maximum value appear on the contact pressure distribution curve is inconsistent with the order specified in the performance requirement index, it is determined that the contact pressure distribution data does not meet the performance requirement index corresponding to the simulation working conditions.

[0062] For example, in the analysis results of the initial tire solution of 750 / 65R25 specification, the average value of the standard loading contact pressure is lower than 2.55MPa; no secondary maximum value appears during inflation; the maximum value under standard inflation is lower than 6MPa; the maximum value under standard loading is lower than 7MPa; none of the above reaches the judgment threshold, that is, the contact pressure distribution data does not meet the performance requirement indicators corresponding to the simulation working conditions.

[0063] If the contact pressure distribution data exceeds the threshold range set in the performance requirement index, the tire design scheme will be automatically calibrated as unqualified, and the subsequent optimization process will be triggered to adjust the contact design parameters between the bead and the rim in the tire simulation model. The specific steps are as follows.

[0064] In some embodiments of the present application, adjusting the contact design parameters between the tire bead and the rim in the tire simulation model includes the following steps: taking the center of mass of the tire bead as a reference, translating the tire bead along a preset direction and a preset distance, wherein the preset direction includes at least one of the following: a vertical direction, a direction perpendicular to the rolling direction of the tire on a horizontal plane; and / or adjusting the installation angle of the tire bead relative to the rim according to a preset adjustment angle.

[0065] Specifically, a multi-dimensional optimization strategy is adopted, including: taking the center of gravity or mass of the bare tire ring as the reference, Figure 5 The preset distance is translated in the X-axis direction (i.e., the direction perpendicular to the rolling direction of the tire on the horizontal plane) as shown, or the preset distance is translated in the Y-axis direction (i.e., the vertical direction) as shown, and the preset distance is translated in both the X and Y directions at the same time; wherein the preset distance can be adjusted according to the tire specifications;

[0066] Alternatively, the tire bead can be rotated clockwise for adjustment, that is, the installation angle of the tire bead relative to the rim can be adjusted according to a preset adjustment angle (the total rotation angle is controlled within a preset range, such as between 0° and 15°) to finely adjust the contact shape between the tire and the rim.

[0067] For example, for a tire of 750 / 65R25 specification, in this embodiment, the center of mass of the bare tire bead can be used as a reference, and the preset range (for example, within the range of 0.5-10 mm) can be translated along the X axis, the preset range (for example, within the range of 0.5-10 mm) can be translated along the Y axis, and the X and Y directions can be translated at the same time;

[0068] In addition, as an optional embodiment, the method also includes the following steps: determining the relative position relationship between the tire bead and the tire cord; in the process of adjusting the tire bead, synchronously adjusting the cord so that the relative position relationship between the tire bead and the cord remains unchanged.

[0069] Specifically, during the process of translation and / or rotation adjustment of the bare tire bead, the preset relative position relationship between the cord and the bare tire bead can also be determined, and based on the relative position relationship, the cord can be adjusted accordingly when the tire bead is moved or rotationally adjusted.

[0070] After adjusting the contact design parameters, the adjusted tire design can be re-circulated through the iterative simulation process until all simulation results meet the evaluation threshold requirements, that is, the contact pressure distribution data meets the performance requirement indicators. The specific steps are as follows.

[0071] In some embodiments of the present application, after adjusting the contact design parameters between the tire bead and the rim in the tire simulation model, the method further includes the following steps: obtaining the contact pressure distribution data collected by simulating the adjusted tire simulation model under the simulation working conditions; re-judging whether the contact pressure distribution data meets the performance requirement index, and if the contact pressure distribution data does not meet the performance requirement index, continue to adjust the contact design parameters between the tire bead and the rim in the tire simulation model until the contact pressure distribution data meets the performance requirement index. At the same time, the results of all optimized solutions can also be compared, and the final solution can be optimized and determined based on the principle of optimal performance.

[0072] For example, for a 750 / 65R25 tire, after iteration and comprehensive evaluation, the result is that the X-axis is shifted 2.5mm in the negative direction and the Y-axis is shifted 1.4mm in the negative direction compared to the initial solution (the design drawings before and after optimization are compared). Figure 7 The results of the above analysis show that the contact pressure distribution data of the contact pressure distribution scheme meet the performance requirements under the contact design parameters, and the final scheme is the scheme with better performance in all aspects among the iterative results. The comparison of the result data before and after optimization under the standard air pressure inflation working condition and the standard load loading working condition are shown in the figure below. Figure 8 and 9 shown.

[0073] This application scheme realizes adaptive adjustment of tire-rim contact pressure by integrating high-precision modeling, multi-condition simulation, intelligent evaluation and automatic optimization technology, significantly improves the accuracy and adaptability of tire design, and provides strong support for the intelligent upgrade of the tire manufacturing industry, which is specifically reflected in the following aspects:

[0074] 1) Significantly improve design accuracy and efficiency: Through the construction of high-precision finite element simulation models and simulation under multiple working conditions, the contact performance between the tire and the rim in different usage scenarios can be accurately predicted. This not only greatly improves the accuracy of the design, but also avoids the inefficient process of repeated trial production and testing in traditional methods, significantly shortening the cycle from product design to mass production.

[0075] 2) Enhance the adaptability and durability of tires: Through intelligent evaluation and screening mechanisms, ensure that all design solutions can meet the preset performance requirements, especially the strict control of the contact pressure between the tire and the rim, effectively avoiding problems such as increased tire wear and air leakage caused by uneven contact pressure. This not only improves the durability of the tire, but also enhances its adaptability under various complex working conditions, providing users with a safer and more reliable driving experience.

[0076] 3) Promote the intelligent transformation of the tire manufacturing industry: The automatic optimization module of this application integrates advanced algorithms and computing resources to achieve intelligent adjustment and optimization of design solutions. This innovation not only reduces the reliance on manual experience, but also improves the automation and intelligence level of the design process. As the technology continues to mature and become more popular, it is expected to lead the tire manufacturing industry to develop in a more efficient, precise and intelligent direction.

[0077] According to an embodiment of the present application, an embodiment of a tire-rim contact pressure adjustment device is also provided. Fig.10 Schematic diagram of a tire-rim contact pressure adjustment device according to an embodiment of the present application. Fig.10 As shown, the device comprises:

[0078] The model building module 1000 is used to obtain a tire design drawing and determine a tire simulation model according to the tire design drawing, wherein the tire design drawing is used to characterize at least a rim model and a bare bead style in the tire;

[0079] The working condition setting module 1002 is used to determine the simulation working condition and determine the performance requirement index corresponding to the contact pressure between the tire bead and the rim under various simulation working conditions, wherein the performance requirement index is used to indicate the pressure distribution state that the contact pressure corresponding to the tire should satisfy under the simulation working condition;

[0080] The simulation module 1004 is used to obtain the contact pressure distribution data between the tire bead and the rim collected when the tire simulation model performs simulation under the simulation working condition;

[0081] The optimization and adjustment module 1006 is used to adjust the contact design parameters between the bead and the rim in the tire simulation model when the contact pressure distribution data does not meet the performance requirement index corresponding to the simulation working condition.

[0082] Optionally, determining the simulated operating conditions includes: determining standard operating conditions, wherein the operating conditions include at least one of the following: inflation pressure, load, and sideslip angle, and the standard operating conditions are the benchmark operating conditions corresponding to the tire when it is designed; determining an operating condition expansion proportional coefficient, wherein a maximum value among multiple operating condition expansion proportional coefficients is greater than 1 and a minimum value is less than 1; based on the operating condition expansion proportional coefficient, expanding the standard operating condition to obtain multiple simulated operating conditions, wherein each operating condition expansion proportional coefficient corresponds to a simulated operating condition.

[0083] Optionally, determining the performance requirement index corresponding to the contact pressure between the tire bead and the rim under various simulation working conditions includes: determining the lower limit threshold of the average value corresponding to the contact pressure under the simulation working conditions, wherein the performance requirement index includes: the average value of the contact pressure at each position around the area where the tire bead contacts the rim should be greater than the lower limit threshold of the average value; determining the first threshold interval range corresponding to the maximum value of the contact pressure under the simulation working conditions and the second threshold interval range corresponding to the second maximum value, wherein the performance requirement index also includes: the maximum value of the contact pressure at each position around the area where the tire bead contacts the rim should be within the first threshold interval range, and the second maximum value should be within the second threshold interval range, the maximum value is the contact pressure value corresponding to the highest peak point on the contact pressure distribution curve, the second maximum value is the contact pressure value corresponding to the second highest peak point on the contact pressure distribution curve, and the contact pressure distribution curve is used to characterize the contact pressure corresponding to different positions around the area where the tire bead contacts the rim.

[0084] Optionally, the performance requirement index also includes: the order in which the maximum value and the second maximum value appear in the contact pressure distribution curve; the contact pressure distribution data includes the contact pressure at each position on a circle of the area where the tire bead contacts the rim; after obtaining the contact pressure distribution data between the tire bead and the rim collected when the tire simulation model performs simulation under the simulation working condition, the method also includes: determining the average value of the contact pressure under the simulation working condition based on the contact pressure distribution data; determining the contact pressure distribution curve based on the contact pressure distribution data, and judging whether there is a maximum value and a second maximum value based on the contact pressure distribution curve; when the average value of the contact pressure is not greater than the lower limit threshold of the average value specified in the performance requirement index, or the maximum value and the second maximum value do not exist in the contact pressure distribution curve, or the maximum value is not within the first threshold interval, or the second maximum value is not within the second threshold interval, or the order in which the maximum value and the second maximum value appear on the contact pressure distribution curve is inconsistent with the order specified in the performance requirement index, it is determined that the contact pressure distribution data does not meet the performance requirement index corresponding to the simulation working condition.

[0085] Optionally, adjusting the contact design parameters between the tire bead and the rim in the tire simulation model includes: translating the tire bead a preset distance in a preset direction based on the center of mass of the tire bead, wherein the preset direction includes at least one of the following: a vertical direction, a direction perpendicular to the rolling direction of the tire on a horizontal plane; and / or adjusting the installation angle of the tire bead relative to the rim according to a preset adjustment angle.

[0086] Optionally, the method further includes: determining the relative position relationship between the tire bead and the tire cord; and in the process of adjusting the tire bead, synchronously adjusting the cord so that the relative position relationship between the tire bead and the cord remains unchanged.

[0087] Optionally, after adjusting the contact design parameters between the tire bead and the rim in the tire simulation model, it also includes: obtaining contact pressure distribution data collected by simulating the adjusted tire simulation model under simulated working conditions; re-determining whether the contact pressure distribution data meets the performance requirement indicators, and if the contact pressure distribution data does not meet the performance requirement indicators, continuing to adjust the contact design between the tire bead and the rim in the tire simulation model until the contact pressure distribution data meets the performance requirement indicators.

[0088] It should be noted that the various modules in the above-mentioned tire-rim contact pressure adjustment device can be program modules (for example, a set of program instructions that implement a certain specific function) or hardware modules. For the latter, it can be expressed in the following forms, but is not limited to this: the expression form of each of the above-mentioned modules is a processor, or the functions of each of the above-mentioned modules are implemented by a processor.

[0089] It should be noted that the tire-rim contact pressure adjustment device provided in this embodiment can be used to perform Figure 2 The tire-rim contact pressure adjustment method shown, therefore, the relevant explanations and descriptions of the above-mentioned tire-rim contact pressure adjustment method are also applicable to the embodiments of the present application and will not be repeated here.

[0090] An embodiment of the present application also provides a non-volatile storage medium, the non-volatile storage medium includes a stored computer program, wherein the device where the non-volatile storage medium is located executes the following tire-rim contact pressure adjustment method by running the computer program: obtaining a tire design drawing, and determining a tire simulation model based on the tire design drawing, wherein the tire design drawing is at least used to characterize the rim model and bare bead style in the tire; determining simulation working conditions, and determining performance requirement indicators corresponding to the contact pressure between the bead and the rim under various simulation working conditions, wherein the performance requirement indicators are used to indicate the pressure distribution state that the contact pressure corresponding to the tire under the simulation working conditions should satisfy; obtaining contact pressure distribution data between the bead and the rim collected when the tire simulation model is simulated under the simulation working conditions; when the contact pressure distribution data does not satisfy the performance requirement indicators corresponding to the simulation working conditions, adjusting the contact design parameters between the bead and the rim in the tire simulation model.

[0091] The embodiments of the present application also provide a computer program product, including a computer program, which, when executed by a processor, implements the steps of the tire-rim contact pressure adjustment method described in each embodiment of the present application: obtaining a tire design drawing, and determining a tire simulation model based on the tire design drawing, wherein the tire design drawing is at least used to characterize the rim model and bare bead style in the tire; determining simulation working conditions, and determining performance requirement indicators corresponding to the contact pressure between the bead and the rim under various simulation working conditions, wherein the performance requirement indicators are used to indicate the pressure distribution state that the contact pressure corresponding to the tire under the simulation working conditions should satisfy; obtaining contact pressure distribution data between the bead and the rim collected when the tire simulation model is simulated under the simulation working conditions; when the contact pressure distribution data does not satisfy the performance requirement indicators corresponding to the simulation working conditions, adjusting the contact design parameters between the bead and the rim in the tire simulation model.

[0092] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0093] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0094] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0095] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0096] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0097] If the integrated unit is implemented in the form of 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 application is essentially 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, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, RandomAccess Memory), mobile hard disk, disk or CD-ROM and other media that can store program codes.

[0098] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A tire-rim contact pressure adjustment method, characterized in that: include: Obtaining a tire design drawing, and determining a tire simulation model based on the tire design drawing, wherein the tire design drawing is used to characterize at least a rim model and a bare bead style in the tire; Determining simulation working conditions, and determining the performance requirement index corresponding to the contact pressure between the tire bead and the rim under various simulation working conditions, wherein the performance requirement index is used to indicate the pressure distribution state that the contact pressure corresponding to the tire should satisfy under the simulation working conditions; Acquiring contact pressure distribution data between the tire bead and the rim when the tire simulation model performs simulation under the simulation working condition; When the contact pressure distribution data does not satisfy the performance requirement index corresponding to the simulation working condition, the contact design parameters between the tire bead and the rim in the tire simulation model are adjusted.

2. The tire-rim contact pressure adjustment method according to claim 1, characterized in that: Determine the simulation conditions including: Determine a standard operating condition, wherein the operating condition includes at least one of the following: inflation pressure, load, and sideslip angle, and the standard operating condition is the operating condition corresponding to the benchmark when the tire is designed; Determining an operating condition expansion ratio coefficient, wherein a maximum value of a plurality of operating condition expansion ratio coefficients is greater than 1 and a minimum value is less than 1; According to the operating condition expansion ratio coefficient, the standard operating condition is expanded to obtain a plurality of the simulation operating conditions, wherein each operating condition expansion ratio coefficient corresponds to one simulation operating condition.

3. The tire-rim contact pressure adjustment method according to claim 2, characterized in that: Determining the performance requirement indicators corresponding to the contact pressure between the tire bead and the rim under various simulation working conditions includes: Determine the lower limit threshold of the average value corresponding to the contact pressure under the simulation working condition, wherein the performance requirement index includes: the average value of the contact pressure at each position on a circle of the area where the tire bead contacts the rim should be greater than the lower limit threshold of the average value; Determine a first threshold interval range corresponding to the maximum value of the contact pressure and a second threshold interval range corresponding to the second maximum value under the simulation working condition, wherein the performance requirement index also includes: the maximum value of the contact pressure at each position on a circle of the area where the tire bead contacts the rim should be within the first threshold interval range, and the second maximum value should be within the second threshold interval range, the maximum value is the contact pressure value corresponding to the highest peak point on the contact pressure distribution curve, the second maximum value is the contact pressure value corresponding to the second highest peak point on the contact pressure distribution curve, and the contact pressure distribution curve is used to characterize the contact pressure corresponding to different positions on a circle of the area where the tire bead contacts the rim.

4. The tire-rim contact pressure adjustment method according to claim 3, characterized in that: The performance requirement index also includes: the order in which the maximum value and the sub-maximum value appear in the contact pressure distribution curve; the contact pressure distribution data includes the contact pressure at each position on a circle of the area where the tire bead contacts the rim; after obtaining the contact pressure distribution data between the tire bead and the rim collected when the tire simulation model performs simulation under the simulation working condition, the method also includes: Determining an average value of the contact pressure under the simulation working condition according to the contact pressure distribution data; Determining the contact pressure distribution curve according to the contact pressure distribution data, and judging whether the maximum value and the sub-maximum value exist according to the contact pressure distribution curve; When the average value of the contact pressure is not greater than the lower limit threshold of the average value specified in the performance requirement index, or the maximum value and the second maximum value do not exist in the contact pressure distribution curve, or the maximum value is not within the first threshold interval, or the second maximum value is not within the second threshold interval, or the order in which the maximum value and the second maximum value appear on the contact pressure distribution curve is inconsistent with the order specified in the performance requirement index, it is determined that the contact pressure distribution data does not meet the performance requirement index corresponding to the simulation working condition.

5. The tire-rim contact pressure adjustment method according to claim 1, characterized in that: Adjusting the contact design parameters between the tire bead and the rim in the tire simulation model includes: Taking the center of mass of the tire bead as a reference, the tire bead is translated along a preset direction and a preset distance, wherein the preset direction includes at least one of the following: a vertical direction, a direction perpendicular to the rolling direction of the tire on a horizontal plane; And / or, adjusting the installation angle of the tire bead relative to the rim according to a preset adjustment angle.

6. The tire-rim contact pressure adjustment method according to claim 5, characterized in that: The method further comprises: Determining the relative positional relationship between the tire bead and the tire cord; During the process of adjusting the tire bead, the cord is adjusted synchronously so that the relative position relationship between the tire bead and the cord remains unchanged.

7. The tire-rim contact pressure adjustment method according to claim 5 or 6, characterized in that: After adjusting the contact design parameters between the tire bead and the rim in the tire simulation model, the method further includes: Acquire the contact pressure distribution data collected by simulating the adjusted tire simulation model under the simulation working condition; Re-determine whether the contact pressure distribution data meets the performance requirement index, and if the contact pressure distribution data does not meet the performance requirement index, continue to adjust the contact design parameters between the bead and the rim in the tire simulation model until the contact pressure distribution data meets the performance requirement index.

8. A tire-rim contact pressure adjustment device, characterized in that: include: A model building module, used to obtain a tire design drawing, and determine a tire simulation model according to the tire design drawing, wherein the tire design drawing is used to characterize at least a rim model and a bare bead style in the tire; A working condition setting module, used to determine the simulation working condition and determine the performance requirement index corresponding to the contact pressure between the tire bead and the rim under the various simulation working conditions, wherein the performance requirement index is used to indicate the pressure distribution state that the contact pressure corresponding to the tire should satisfy under the simulation working condition; A simulation module, used to obtain the contact pressure distribution data between the tire bead and the rim when the tire simulation model performs simulation under the simulation working condition; The optimization and adjustment module is used to adjust the contact design parameters between the tire bead and the rim in the tire simulation model when the contact pressure distribution data does not meet the performance requirement index corresponding to the simulation working condition.

9. An electronic device, characterized in that: include: A memory and a processor, wherein the processor is used to run a program stored in the memory, wherein the tire-rim contact pressure adjustment method according to any one of claims 1 to 7 is executed when the program is run.

10. A non-volatile storage medium, characterized in that: The non-volatile storage medium includes a stored computer program, wherein the device where the non-volatile storage medium is located executes the tire-rim contact pressure adjustment method according to any one of claims 1 to 7 by running the computer program.

11. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the tire-rim contact pressure adjustment method according to any one of claims 1 to 7 are implemented.

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