Vehicle door sinking optimization method and related equipment

Abstract

The invention discloses a vehicle door sinking optimization method and related equipment, and relates to the technical field of vehicle design and manufacturing, and the method comprises the steps: constructing a target normal line perpendicular to a hinge side wall mounting surface based on a midpoint of a hinge shaft connecting line of a target vehicle door; determining a rotation reference line corresponding to the initial meshing point according to the target normal line; determining an optimized meshing point corresponding to the target sinkage according to the initial meshing point and the rotation reference line; rotating the target vehicle door by taking the target normal line as a rotating shaft until the door lock of the target vehicle door is located at the optimized meshing point, and determining the current position of the target vehicle door as an optimized vehicle door position; and according to the position relation of the optimized vehicle door position relative to the target vehicle body, a vehicle door hinge of the target vehicle door is perforated. Through accurate calculation, positioning and adjustment, not only are the sealing performance and the assembly quality of the vehicle door improved, but also the workload of subsequent adjustment and finishing is reduced, and the problem of sinking of the vehicle door is effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle design and manufacturing, and more specifically, to a door sinking optimization method and related equipment. Background Art

[0002] With the development of automobile industry technology, car doors, as one of the important components of vehicles, play a key role in ensuring the safety and comfort of passengers. However, since the connection between the car door and the car body mainly relies on the hinge system, coupled with the various stresses during long-term use, the problem of car door sinking has gradually emerged. Car door sinking not only affects the appearance, but may also cause the car door to not close tightly, which in turn causes faults such as air leakage and water leakage, reducing the user experience.

[0003] In the prior art, the correction of door sinking usually adopts empirical adjustment methods or simple geometric dimension correction. Although these methods are easy to implement, they often cannot effectively solve the problem when faced with complex door structures and changing usage environments. In particular, when the vehicle is operated under different geographical and climatic conditions, factors such as temperature changes and material aging will affect the sinking state of the door. Traditional correction methods are difficult to adapt to these dynamic changes, resulting in poor correction effects, and even in some cases, accelerating the deterioration of door problems. That is, there are technical problems in the related art that the correction accuracy for door sinking optimization is not high and the adaptability is poor. Summary of the invention

[0004] A series of simplified concepts are introduced in the summary of the invention, which will be further described in detail in the detailed description. The summary of the invention of this application does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0005] The door sinking optimization method and related devices provided in the present application can not only improve the sealing performance and assembly quality of the door through precise calculation, positioning and adjustment, but also reduce the workload of subsequent adjustment and finishing, thereby achieving an effective solution to the door sinking problem.

[0006] In a first aspect, the present application provides a door sinking optimization method, comprising: constructing a target normal line perpendicular to the hinge side panel mounting surface based on the midpoint of the hinge axis line of the target door; determining a rotation reference line corresponding to an initial meshing point according to the target normal line, wherein the door lock of the target door is located at the initial meshing point; determining an optimized meshing point corresponding to a target sinking amount according to the initial meshing point and the rotation reference line; rotating the target door with the target normal line as the rotation axis until the door lock of the target door is located at the optimized meshing point, and determining the current position of the target door as the optimized door position; and drilling a hole in the door hinge of the target door according to the positional relationship of the optimized door position relative to the target vehicle body.

[0007] In a feasible implementation, determining a rotation reference line corresponding to an initial meshing point based on the target normal line includes: rotating the initial meshing point counterclockwise around the target normal line by a preset angle, and determining a rotation trajectory line of the initial meshing point as the rotation reference line.

[0008] In a feasible implementation, determining the optimized meshing point corresponding to the target sinking amount based on the initial meshing point and the rotation reference line includes: determining the deformation compensation coefficient corresponding to the target sinking amount under preset working conditions based on the thermal expansion coefficient of the target vehicle door; calculating the product of the deformation compensation coefficient and the target sinking amount to obtain the compensated sinking amount; and determining the position on the rotation reference line that is vertically above the initial meshing point and at a distance equal to the compensated sinking amount as the optimized meshing point.

[0009] In a feasible implementation, before determining the rotation reference line corresponding to the initial engagement point based on the target normal line, the door sinking optimization method also includes: iteratively adjusting the door structure, hinge arrangement and body structure based on the finite element analysis of the target door, and obtaining the current sinking amount of the target door; when the current sinking amount is less than a preset sinking amount threshold, determining the current sinking amount as the target sinking amount.

[0010] In a feasible implementation, when the current sinking amount is less than a preset sinking amount threshold, the current sinking amount is determined as the target sinking amount, including: when the current sinking amount is less than the preset sinking amount threshold, performing a modal analysis on the target door to obtain the resonant state of the target door within a preset frequency range; when the resonant state is non-resonant, determining the current sinking amount as the target sinking amount.

[0011] In a feasible implementation, after the target door is rotated with the target normal line as the rotation axis until the door lock of the target door is located at the optimized engagement point and the current position of the target door is determined as the optimized door position, the door sinking optimization method also includes: measuring the gap data between the target door and the target vehicle body; based on a preset gap interval, comparing and analyzing the gap data to identify door hard interference areas with abnormal gap distances; optimizing and adjusting the door hard interference areas to eliminate the hard interference areas.

[0012] In a feasible implementation manner, the optimization adjustment of the door hard interference area to eliminate the door hard interference area includes: for a first hard interference area whose gap distance is greater than the maximum value of the preset gap interval and whose absolute difference with the interval maximum value is greater than a first threshold, performing a door edge filling adjustment to eliminate the first hard interference area; for a second hard interference area whose gap distance is greater than the interval maximum value and whose absolute difference with the interval maximum value is less than or equal to the first threshold, performing a door sealing strip thickening adjustment to eliminate the second hard interference area; for a third hard interference area whose gap distance is less than the minimum value of the preset gap interval and whose absolute difference with the interval minimum value is greater than a second threshold, performing a door edge cutting adjustment to eliminate the third hard interference area; for a fourth hard interference area whose gap distance is less than the minimum value of the interval and whose absolute difference with the interval minimum value is less than or equal to the second threshold, performing a door sealing strip thinning adjustment to eliminate the fourth hard interference area.

[0013] In the second aspect, the present application also provides a door sinking optimization device, including: a normal line determination unit, used to construct a target normal line perpendicular to the hinge side panel installation surface based on the midpoint of the hinge axis line of the target door; a reference line determination unit, used to determine a rotation reference line corresponding to an initial meshing point according to the target normal line, wherein the door lock of the target door is located at the initial meshing point; an engagement point determination unit, used to determine an optimized meshing point corresponding to a target sinking amount according to the initial meshing point and the rotation reference line; a door optimization unit, used to rotate the target door with the target normal line as the rotation axis until the door lock of the target door is located at the optimized meshing point, and determine the current position of the target door as the optimized door position; a hinge opening unit, used to open a hole in the door hinge of the target door according to the positional relationship of the optimized door position relative to the target vehicle body.

[0014] In a third aspect, the present application further provides an electronic device, comprising: a memory and a processor, wherein the processor is used to implement the steps of the door sinking optimization method described in the first aspect when executing a computer program stored in the memory.

[0015] In a fourth aspect, the present application further provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the door sinking optimization method described in the first aspect.

[0016] In a fifth aspect, the present application also provides a computer program product, including a computer program or computer executable instructions, which, when executed by a processor, implements the door sinking optimization method provided in an embodiment of the present application.

[0017] In summary, this application ensures the accuracy of the door during rotation and positioning by accurately constructing the target normal line and the rotation reference line, thereby reducing assembly errors; by calculating and optimizing the meshing point, it ensures that the door can achieve the expected sealing performance and clearance requirements when closed, thereby improving the overall assembly quality of the door; by accurately controlling the rotation of the door and the opening position of the hinge, it ensures that the movement trajectory and clearance of the door meet the design requirements, thereby improving the stability and service life of the door. In summary, the door sinking optimization method provided by this application not only improves the sealing performance and assembly quality of the door through precise calculation, positioning and adjustment, but also reduces the workload of subsequent adjustment and finishing, thereby effectively solving the door sinking problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present specification. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0019] Figure 1 A schematic flow chart of a door sinking optimization method provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the target normal line position provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the structure of a door sinking optimization device provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0023] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, rather than 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 described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "is" and "has" and any variations thereof involved in the present application 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.

[0024] The term "module" or "unit" in this application refers to a computer program or a part of a computer program that has a predetermined function and works together with other related parts to achieve a predetermined goal, and can be implemented in whole or in part by using software, hardware (such as processing circuits or memories) or a combination thereof. Similarly, a processor (or multiple processors or memories) can be used to implement one or more modules or units. In addition, each module or unit can be part of an overall module or unit that includes the function of the module or unit.

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions 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. In the following description, it is related to "some embodiments", which describes a subset of all possible embodiments, but it can be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0026] See also Figure 1 , Figure 1 1 is a flow chart of a door sinking optimization method provided by an embodiment of the present application. The method may specifically include the following steps 101 to 105:

[0027] Step 101, constructing a target normal line perpendicular to the hinge side panel installation surface based on the midpoint of the hinge axis line of the target door;

[0028] Specifically, the target door refers to the door that needs to be optimized for sinking; the door is connected to the body through a hinge, and the hinge usually has one or more rotation axes. The midpoint of the hinge axis line refers to the midpoint of the line connecting the two rotation axes of the hinge connecting the door and the body. This point remains fixed during the rotation of the door and is an important reference point for the movement of the door. The hinge side panel mounting surface refers to the part of the surface where the door hinge is fixed on the body side panel; the target normal line is an imaginary straight line that is perpendicular to the hinge side panel mounting surface and passes through the midpoint of the hinge axis line. This line is perpendicular to the hinge side panel mounting surface in three-dimensional space and provides a reference direction perpendicular to the door rotation plane.

[0029] For example, the three-dimensional coordinates of both ends of the door hinge axis can be obtained, and then the midpoint coordinates of the axis connection line can be calculated by simulation software; then, the specific position and normal direction of the door side panel installation surface can be identified by referring to the vehicle design drawings or using CAD software; finally, using computer-aided design (CAD) or computer-aided engineering (CAE) software, with the midpoint as the reference, a normal line perpendicular to the side panel installation surface is constructed and visualized in the model for subsequent analysis and optimization. Figure 2 As shown, the figure shows the structural diagram of the hinge side panel installation surface, and the "normal line X" shown in the figure is the target normal line.

[0030] Through the implementation of step 101, the accuracy and symmetry of the target normal line are ensured, which is crucial for the accuracy of subsequent door rotation and positioning; by taking the midpoint of the hinge axis line as a reference, the door can be kept balanced during the rotation process to avoid assembly problems caused by center of gravity shift.

[0031] Step 102, determining a rotation reference line corresponding to an initial meshing point according to a target normal line, wherein a door lock of a target vehicle door is located at the initial meshing point;

[0032] Specifically, the initial engagement point refers to the point where the door lock of the target door contacts the corresponding lock part of the body before any optimization adjustment is made. This point is the position where the door lock contacts and starts to engage with the body lock system when the door is closed. The rotation reference line is an imaginary straight line, which is determined based on the target normal line and is used to guide the trajectory of the door rotation.

[0033] Exemplarily, first, the current position of the door lock of the target door, that is, the initial engagement point, can be determined; then, the target normal line is used as the rotation reference line, and a rotation direction (such as counterclockwise or clockwise) is determined; finally, with the initial engagement point as the starting point, a rotation reference line is drawn along the rotation direction and rotation angle determined by the target normal line.

[0034] Through the implementation of step 102, the direction and path of the door during the rotation process are clarified, which helps to accurately control the rotation of the door in subsequent steps so that the door can accurately reach the optimized position.

[0035] Step 103, determining an optimized meshing point corresponding to a target sinking amount according to the initial meshing point and the rotation reference line;

[0036] Specifically, the optimized engagement point is the engagement position that the door lock should eventually reach after a series of rotations and adjustments of the door.

[0037] Exemplarily, first, the target value of the door sinking optimization, i.e., the target sinking amount, can be obtained, which is usually determined based on vehicle design standards, user expectations or test results. Based on the target sinking amount and the characteristics of the rotation reference line (such as rotation angle, direction, etc.), the offset distance from the initial meshing point to the optimized meshing point is calculated. This distance should be able to ensure that the door reaches the required sinking amount when closed. On the rotation reference line, based on the calculated offset distance, starting from the initial meshing point, the specific position of the optimized meshing point is determined. This position will be the expected position of the door lock after optimization.

[0038] By implementing step 103 and calculating the optimized meshing point corresponding to the target sinking amount, it can be ensured that the door achieves the expected sealing performance and clearance requirements when closed, which helps to improve the assembly quality of the door and reduce the workload of subsequent adjustment and finishing.

[0039] Step 104, rotating the target door with the target normal line as the rotation axis until the door lock of the target door is located at the optimized meshing point, and determining the current position of the target door as the optimized door position;

[0040] Specifically, first, the target normal line can be used as the axis of rotation, which means that the door will rotate around this line to ensure the directionality and accuracy of the rotation action; then, the target door is subjected to rotation simulation to make it start to rotate around the target normal line. During the rotation process, the position of the door lock is continuously monitored until it is accurately aligned to the optimized meshing point. Once the door lock reaches the optimized meshing point, the rotation operation is immediately stopped and the current door position is recorded.

[0041] By implementing step 104 and taking the target normal line as the rotation axis, it is possible to ensure that the vehicle door maintains verticality during the rotation process, avoid assembly problems caused by tilting, and rotate the door lock to an optimized engagement point, which helps to improve the sealing performance and appearance quality of the vehicle door.

[0042] Step 105, drilling a hole in a door hinge of the target door according to the positional relationship of the optimized door position relative to the target vehicle body;

[0043] Specifically, first, determine the relative position relationship between the optimized door position and the target vehicle body, including the door's position in three-dimensional space, angle, and spacing from other components; then, based on the above position relationship, design a hole opening scheme for the door hinges, including determining the position, size, shape, and number of the holes, to ensure that the door hinges can be securely mounted on the door and body, and allow the door to be opened and closed smoothly at the optimized position; finally, perform hole opening operations on the door according to the designed hole opening scheme.

[0044] By implementing step 105, holes are opened according to the optimized door position relative to the target vehicle body, which can ensure that the door hinge is accurately installed, thereby ensuring that the movement trajectory and clearance of the door meet the design requirements, and ensuring that the hinge can be accurately installed after the door is adjusted to the correct position, thereby preventing the sinking problem from occurring again in the future and enhancing the stability and durability of the door.

[0045] In summary, the embodiments of the present application ensure the accuracy of the door during rotation and positioning by accurately constructing the target normal line and the rotation reference line, thereby reducing assembly errors; by calculating and optimizing the meshing point, it ensures that the door can achieve the expected sealing performance and clearance requirements when closed, thereby improving the overall assembly quality of the door; by accurately controlling the rotation of the door and the opening position of the hinge, it ensures that the movement trajectory and clearance of the door meet the design requirements, thereby improving the stability and service life of the door. In summary, the method provided in the embodiments of the present application not only improves the sealing performance and assembly quality of the door through precise calculation, positioning and adjustment, but also reduces the workload of subsequent adjustment and finishing, thereby effectively solving the door sinking problem.

[0046] In some embodiments, determining the rotation reference line corresponding to the initial meshing point based on the target normal line may include: rotating the initial meshing point counterclockwise around the target normal line by a preset angle, and determining the rotation trajectory line of the initial meshing point as the rotation reference line.

[0047] Specifically, first, the target normal line can be clearly defined as the reference line for rotation. This line will serve as the central axis of the rotation operation to ensure the directionality and accuracy of the rotation action. Next, a preset angle of rotation is set. This preset angle is determined based on the requirements for door sinking optimization, the geometric relationship between the door and the body, and the characteristics of the door lock mechanism (such as 10 degrees). Then, starting from the initial engagement point, rotate counterclockwise around the target normal line at a preset angle. Finally, the trajectory line formed by the initial engagement point during the rotation process is determined as the rotation reference line.

[0048] Through the implementation of the above embodiment, the initial engagement point is rotated counterclockwise around the target normal line by a preset angle to ensure the accuracy and consistency of the rotation reference line. This can ensure that the position change of the door lock during the rotation of the door is predictable and controllable, which helps to accurately achieve the target sinking amount.

[0049] In some embodiments, the aforementioned step 103 may include: determining a deformation compensation coefficient corresponding to a target sinking amount under preset working conditions based on a thermal expansion coefficient of a target vehicle door; calculating the product of the deformation compensation coefficient and the target sinking amount to obtain a compensated sinking amount; and determining a position on the rotation reference line that is vertically above the initial engagement point and at a distance equal to the compensated sinking amount as an optimized engagement point.

[0050] Specifically, the thermal expansion coefficient refers to the relative degree of change in length or volume of the target door material when the temperature changes; the preset operating conditions refer to the various environmental and operating conditions that the door may encounter, which will affect the size and shape of the door; the deformation compensation coefficient is a coefficient used to compensate for the deformation of the door caused by thermal expansion or other factors. It is a dimensionless value used to adjust the actual sinking amount of the door to compensate for the deformation of the material under specific conditions; the compensated sinking amount refers to the additional sinking amount calculated based on the thermal expansion coefficient and the deformation compensation coefficient in order to offset the expansion or contraction of the door caused by temperature changes.

[0051] Exemplarily, first, the thermal expansion coefficient of the target door can be obtained, which reflects the dimensional change characteristics of the door material with temperature changes; then, based on the temperature change range under preset working conditions (such as the maximum operating temperature, the minimum operating temperature, etc.), the definition and formula of the thermal expansion coefficient are used to calculate the deformation compensation coefficient corresponding to the target sinking amount, and this coefficient is used to compensate for the influence of the door size change caused by temperature change on the sinking amount; then, the deformation compensation coefficient is multiplied by the target sinking amount to obtain the compensated sinking amount, and this value represents the additional sinking amount required to keep the door from closing correctly after the temperature changes; finally, on the rotation reference line, find the position that is vertically above the initial meshing point and the distance is equal to the compensated sinking amount, and determine this position as the optimized meshing point. This position is the optimal meshing position after considering the thermal expansion effect of the door, which can ensure that the door can still close smoothly after the temperature changes.

[0052] Through the implementation of the above embodiment, taking into account the thermal expansion characteristics of the door material, the compensation sinking amount is determined by calculating the deformation compensation coefficient, thereby determining the optimal engagement point, which can pre-compensate for the door deformation caused by temperature changes and ensure the stable closure of the door under different working conditions.

[0053] In some embodiments, before determining the rotation reference line corresponding to the initial engagement point based on the target normal line, the aforementioned door sinking optimization method may also include: based on finite element analysis of the target door, iteratively adjusting the door structure, hinge arrangement and body structure, and obtaining the current sinking amount of the target door; when the current sinking amount is less than a preset sinking amount threshold, determining the current sinking amount as the target sinking amount.

[0054] Specifically, first, a finite element model of the door can be established according to the geometric shape, material properties and boundary conditions of the target door, and the connection relationship between the door and the body is considered, and the relevant parts of the body structure are also included in the model; the model is preliminarily analyzed using finite element analysis software to simulate the stress and deformation behavior of the door under different working conditions, and the initial sinking amount of the door is calculated; according to the preliminary analysis results, the door structure, hinge arrangement and body structure are iteratively adjusted, and these adjustments may include changing the thickness of the door material, the layout of the reinforcement, the installation position or angle of the hinge, etc. After each adjustment, the finite element analysis is re-performed to evaluate the impact of the adjustment on the sinking amount of the door; during the iteration process, the current sinking amount of the door is continuously monitored and compared with a preset sinking amount threshold, which is determined based on factors such as the sealing of the door closing and the smoothness of opening and closing the door (such as 3mm); when the current sinking amount of the door is less than the preset sinking amount threshold, the iterative adjustment is stopped, and the current sinking amount at this time is determined as the target sinking amount.

[0055] By implementing the above-mentioned embodiments, the sinking amount of the vehicle door can be effectively predicted and reduced in the design stage, thereby avoiding the sinking problem in the later stage and reducing rework and costs.

[0056] In some embodiments, when the current sinking amount is less than a preset sinking amount threshold, the current sinking amount is determined as the target sinking amount, which may include: when the current sinking amount is less than the preset sinking amount threshold, performing a modal analysis on the target door to obtain the resonance state of the target door within a preset frequency range; when the resonance state is non-resonance, determining the current sinking amount as the target sinking amount.

[0057] Specifically, first, ensure that the adjustment of the current door structure, hinge arrangement and body structure has been completed, and the current sinking amount has been calculated and is less than the preset sinking amount threshold; then, prepare the input data required for modal analysis, including the geometric model of the door, material properties, boundary conditions, etc.; then, use the modal analysis software or the modal analysis module in the finite element analysis software to perform modal analysis on the target door, consider the vibration behavior of the door within a preset frequency range, and calculate the natural frequency and vibration mode of the door; based on the results of the modal analysis, evaluate whether the target door has a resonance state within the preset frequency range. If the modal analysis results show that the target door does not resonate within the preset frequency range, then it can be considered that the current door structure and sinking amount settings are reasonable. At this time, the current sinking amount is determined as the target sinking amount.

[0058] By implementing the above embodiments, modal analysis is performed and it is ensured that the door does not resonate within a preset frequency range, so that the dynamic performance and riding comfort of the door can be improved and noise and vibration problems caused by resonance can be avoided.

[0059] In some embodiments, after step 104, the aforementioned door sinking optimization method may further include: measuring the gap data between the target door and the target vehicle body; based on a preset gap interval, comparing and analyzing the gap data to identify the door hard interference area with abnormal gap distance; optimizing and adjusting the door hard interference area to eliminate the hard interference area.

[0060] Specifically, first, a measuring tool or device (such as a laser rangefinder, a three-coordinate measuring machine, etc.) can be used to comprehensively measure the gap between the target door and the target body. The measuring points should cover all key areas of the door to ensure the comprehensiveness and accuracy of the data. Then, the measured gap data is compared and analyzed with the preset gap interval. The preset gap interval is set according to the door design requirements and the vehicle use conditions, and is used to evaluate whether the gap is within a reasonable range. Through comparison and analysis, the door areas where the gap exceeds the preset interval are identified. These areas may have hard interference risks. Subsequently, based on the results of the gap data analysis, the door hard interference areas with abnormal gap distances are further identified. The hard interference area refers to the area where the door physically contacts or collides with the body or other parts during the closing or opening process. Finally, for the identified hard interference areas, optimization adjustments are made to eliminate the hard interference. The optimization adjustments may include adjusting the door structure (such as changing the shape of the door edge, adding or reducing the internal reinforcement of the door, etc.), adjusting the hinge position or angle, modifying the body structure (such as adjusting the position of the body sealing strip, modifying the shape of the body panel, etc.) or adopting other technical means (such as installing a buffer pad, adjusting the door opening force, etc.). The goal of optimization is to ensure that the door maintains an appropriate gap with the body when closed while avoiding hard interference.

[0061] Through the implementation of the above embodiments, the hard interference area of ​​the door can be discovered and optimized in time, which can not only improve the sealing of the door, but also avoid noise and damage caused by friction and wear during the use of the door.

[0062] In some embodiments, the aforementioned optimization adjustment of the door hard interference area to eliminate the door hard interference area may include: for a first hard interference area whose gap distance is greater than the maximum value of a preset gap interval and whose absolute difference with the interval maximum value is greater than a first threshold, performing a door edge filling adjustment to eliminate the first hard interference area; for a second hard interference area whose gap distance is greater than the interval maximum value and whose absolute difference with the interval maximum value is less than or equal to the first threshold, performing a door sealing strip thickening adjustment to eliminate the second hard interference area; for a third hard interference area whose gap distance is less than the minimum value of the preset gap interval and whose absolute difference with the interval minimum value is greater than the second threshold, performing a door edge cutting adjustment to eliminate the third hard interference area; for a fourth hard interference area whose gap distance is less than the minimum value of the interval and whose absolute difference with the interval minimum value is less than or equal to the second threshold, performing a door sealing strip thinning adjustment to eliminate the fourth hard interference area.

[0063] Specifically, the first threshold is a preset value used to determine the extent to which the gap distance between the door and the body exceeds the preset maximum value of the gap interval. If the gap distance exceeds the maximum value and the difference is greater than the first threshold, more substantial adjustment measures need to be taken, such as filling the door edge. The second threshold is another preset value used to determine the extent to which the gap distance between the door and the body is less than the preset minimum value of the gap interval. If the gap distance is less than the minimum value and the difference is greater than the second threshold, corresponding adjustment measures need to be taken, such as cutting the door edge. The first hard interference area refers to the gap distance between the door and the body being greater than the preset maximum value of the gap interval, and the absolute difference between this gap distance and the preset maximum value of the gap interval exceeds the first threshold; the second hard interference area refers to the gap distance between the door and the body being greater than the preset maximum value of the gap interval, but the absolute difference between this gap distance and the preset maximum value of the gap interval is less than or equal to the first threshold. The third hard interference area refers to the gap distance between the vehicle door and the vehicle body is less than the preset minimum value of the gap interval, and the absolute difference between this gap distance and the preset minimum value of the gap interval exceeds the second threshold; the fourth hard interference area refers to the gap distance between the vehicle door and the vehicle body is less than the preset minimum value of the gap interval, but the absolute difference between this gap distance and the preset minimum value of the gap interval is less than or equal to the second threshold.

[0064] For example, for the first hard interference area where the gap is too large, the edge of the door can be expanded to reduce the gap and eliminate the hard interference; for the second hard interference area where the gap is slightly larger, the door sealing strip can be thickened to fill the gap and maintain the sealing of the door; for the third hard interference area where the gap is too small, a cutting tool can be used to perform a slight cut on the edge of the door to ensure that the door does not collide with the car body when closed; finally, for the fourth hard interference area where the gap is slightly smaller, the problem can be solved by replacing it with a thinner sealing strip, which maintains the rationality of the gap and the sealing performance of the door.

[0065] By implementing the above embodiments, different optimization strategies are adopted for different types of hard interference areas, so as to accurately solve the hard interference problem while maintaining the overall aesthetics and functionality of the vehicle door.

[0066] Furthermore, as an implementation of the aforementioned method embodiment, the present application also provides a door sinking optimization device for implementing the aforementioned method embodiment. The device embodiment corresponds to the aforementioned method embodiment. For ease of reading, the present door sinking optimization device embodiment will no longer repeat the details of the aforementioned method embodiment one by one, but it should be clear that the device in the present application embodiment can correspond to and implement all the contents of the aforementioned method embodiment. Figure 3 As shown, the door sinking optimization device 20 includes: a normal line determination unit 201, a reference line determination unit 202, a meshing point determination unit 203, a door optimization unit 204 and a hinge opening unit 205, wherein the normal line determination unit 201 is used to construct a target normal line perpendicular to the hinge side mounting surface based on the midpoint of the hinge axis line of the target door; the reference line determination unit 202 is used to determine the rotation reference line corresponding to the initial meshing point according to the target normal line, wherein the door of the target door The lock is located at the initial meshing point; the meshing point determination unit 203 is used to determine the optimized meshing point corresponding to the target sinking amount according to the initial meshing point and the rotation reference line; the door optimization unit 204 is used to rotate the target door with the target normal line as the rotation axis until the door lock of the target door is located at the optimized meshing point, and the current target door position is determined as the optimized door position; the hinge opening unit 205 is used to open a hole in the door hinge of the target door according to the positional relationship of the optimized door position relative to the target body.

[0067] In some embodiments, the reference line determination unit 202 is further configured to rotate the initial meshing point counterclockwise around the target normal line by a preset angle, and determine the rotation trajectory line of the initial meshing point as the rotation reference line.

[0068] In some embodiments, the engagement point determination unit 203 is also used to determine the deformation compensation coefficient corresponding to the target sinking amount under preset working conditions based on the thermal expansion coefficient of the target vehicle door; calculate the product of the deformation compensation coefficient and the target sinking amount to obtain the compensated sinking amount; and determine the position on the rotation reference line that is vertically above the initial engagement point and at a distance equal to the compensated sinking amount as the optimized engagement point.

[0069] In some embodiments, the normal line determination unit 201 is also used to iteratively adjust the door structure, hinge arrangement and body structure based on the finite element analysis of the target door, and obtain the current sinking amount of the target door; when the current sinking amount is less than a preset sinking amount threshold, the current sinking amount is determined as the target sinking amount.

[0070] In some embodiments, the normal line determination unit 201 is also used to perform modal analysis on the target door when the current sinking amount is less than a preset sinking amount threshold to obtain the resonant state of the target door within a preset frequency range; when the resonant state is non-resonant, the current sinking amount is determined as the target sinking amount.

[0071] In some embodiments, the door optimization unit 204 is also used to measure the gap data between the target door and the target vehicle body; based on a preset gap interval, the gap data is compared and analyzed to identify the door hard interference area with abnormal gap distance; the door hard interference area is optimized and adjusted to eliminate the hard interference area.

[0072] In some embodiments, the door optimization unit 204 is also used to perform door edge filling adjustments to eliminate the first hard interference area, where the gap distance is greater than the maximum value of a preset gap interval and the absolute difference with the interval maximum value is greater than a first threshold; to thicken the door sealing strip to eliminate the second hard interference area, where the gap distance is greater than the maximum value of the interval and the absolute difference with the interval maximum value is less than or equal to the first threshold; to cut the door edge to eliminate the third hard interference area, where the gap distance is less than the minimum value of the preset gap interval and the absolute difference with the interval minimum value is greater than the second threshold; to thin the door sealing strip to eliminate the fourth hard interference area, where the gap distance is less than the minimum value of the interval and the absolute difference with the interval minimum value is less than or equal to the second threshold.

[0073] The present application also provides a computer-readable storage medium, which stores computer-executable instructions or computer programs. When the computer-executable instructions or computer programs are executed by a processor, the processor will be caused to execute any step of the door sinking optimization method provided in the present application.

[0074] In some embodiments, the computer-readable storage medium may be a memory such as RAM, read-only memory (ROM), flash memory, magnetic surface memory, optical disk, or compact disc read-only memory (CD-ROM); or it may be various devices including one or any combination of the above memories.

[0075] In some embodiments, computer executable instructions may be in the form of a program, software, software module, script or code, written in any form of programming language (including compiled or interpreted languages, or declarative or procedural languages), and may be deployed in any form, including as a stand-alone program or as a module, component, subroutine or other unit suitable for use in a computing environment.

[0076] In some embodiments, computer-executable instructions may, but need not, correspond to a file in a file system, may be stored as part of a file storing other programs or data, for example, in one or more scripts in a HyperText Markup Language (HTML) document, in a single file dedicated to the program in question, or in multiple coordinated files (e.g., files storing one or more modules, subroutines, or code portions).

[0077] In some embodiments, computer executable instructions may be deployed to be executed on one electronic device, or on multiple electronic devices located at one site, or on multiple electronic devices distributed at multiple sites and interconnected by a communication network.

[0078] like Figure 4 As shown, the present application also provides an electronic device 30, including a memory 310, a processor 320, and a computer program 311 stored in the memory 310 and executable on the processor, and when the processor 320 executes the computer program 311, any step of the above-mentioned door sinking optimization method is implemented.

[0079] The present application also provides a computer program product, which includes a computer program or computer executable instructions, and the computer program or computer executable instructions are stored in a computer-readable storage medium. A processor of an electronic device reads the computer program or computer executable instructions from the computer-readable storage medium, and the processor executes the computer program or computer executable instructions, so that the electronic device executes any step of the door sinking optimization method described above in the present application.

[0080] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A door sinking optimization method, characterized in that: include: Based on the midpoint of the hinge axis line of the target door, a target normal line perpendicular to the hinge side panel installation surface is constructed; Determining a rotation reference line corresponding to an initial meshing point according to the target normal line, wherein the door lock of the target vehicle door is located at the initial meshing point; Determining an optimized meshing point corresponding to a target sinking amount according to the initial meshing point and the rotation reference line; Taking the target normal line as a rotation axis, rotating the target door until the door lock of the target door is located at the optimized meshing point, and determining the current position of the target door as the optimized door position; According to the positional relationship of the optimized door position relative to the target vehicle body, a hole is drilled in the door hinge of the target door.

2. The door sinking optimization method according to claim 1, characterized in that: Determining a rotation reference line corresponding to an initial meshing point according to the target normal line includes: The initial meshing point is rotated counterclockwise around the target normal line by a preset angle, and a rotation trajectory line of the initial meshing point is determined as the rotation reference line.

3. The door sinking optimization method according to claim 2, characterized in that: The step of determining an optimized meshing point corresponding to a target sinking amount according to the initial meshing point and the rotation reference line includes: Determining, according to the thermal expansion coefficient of the target vehicle door, a deformation compensation coefficient corresponding to the target sinking amount under a preset working condition; Calculating the product of the deformation compensation coefficient and the target sinking amount to obtain a compensated sinking amount; The position on the rotation reference line that is vertically above the initial meshing point and at a distance equal to the compensatory sinking amount is determined as the optimized meshing point.

4. The door sinking optimization method according to claim 1, characterized in that: Before determining the rotation reference line corresponding to the initial meshing point according to the target normal line, the door sinking optimization method further includes: Based on the finite element analysis of the target door, iteratively adjust the door structure, hinge arrangement and body structure, and obtain the current sinking amount of the target door; When the current sinking amount is less than a preset sinking amount threshold, the current sinking amount is determined as the target sinking amount.

5. The door sinking optimization method according to claim 4, characterized in that: When the current sinking amount is less than a preset sinking amount threshold, determining the current sinking amount as the target sinking amount includes: When the current sinking amount is less than a preset sinking amount threshold, performing a modal analysis on the target door to obtain a resonance state of the target door within a preset frequency range; When the resonance state is non-resonance, the current sinking amount is determined as the target sinking amount.

6. The door sinking optimization method according to claim 1, characterized in that: After rotating the target door with the target normal line as the rotation axis until the door lock of the target door is located at the optimized engagement point and determining the current position of the target door as the optimized door position, the door sinking optimization method further includes: Measure and obtain the gap data between the target door and the target vehicle body; Based on a preset gap interval, the gap data is compared and analyzed to identify a door hard interference area with an abnormal gap distance; The door hard interference area is optimized and adjusted to eliminate the hard interference area.

7. The door sinking optimization method according to claim 6, characterized in that: The optimizing and adjusting the door hard interference area to eliminate the door hard interference area includes: For a first hard interference region whose gap distance is greater than the maximum value of the preset gap interval and whose absolute difference with the maximum value of the interval is greater than a first threshold, a door edge filling adjustment is performed to eliminate the first hard interference region; For a second hard interference region where the gap distance is greater than the maximum value of the interval and the absolute difference between the gap distance and the maximum value of the interval is less than or equal to the first threshold, thickening the door sealing strip is adjusted to eliminate the second hard interference region; For a third hard interference region where the gap distance is less than the minimum value of the preset gap interval and the absolute difference between the gap distance and the minimum value of the interval is greater than a second threshold, a door edge cutting adjustment is performed to eliminate the third hard interference region; For a fourth hard interference region where the gap distance is less than the minimum value of the interval and the absolute difference with the minimum value of the interval is less than or equal to the second threshold, a door sealing strip thinning adjustment is performed to eliminate the fourth hard interference region.

8. A door sinking optimization device, characterized in that: include: A normal line determination unit, used for constructing a target normal line perpendicular to the hinge side panel installation surface based on the midpoint of the hinge axis connection line of the target door; a reference line determination unit, configured to determine a rotation reference line corresponding to an initial meshing point according to the target normal line, wherein the door lock of the target vehicle door is located at the initial meshing point; An engagement point determination unit, configured to determine an optimized engagement point corresponding to a target sinking amount according to the initial engagement point and the rotation reference line; A door optimization unit, configured to rotate the target door with the target normal line as a rotation axis until the door lock of the target door is located at the optimized meshing point, and determine the current position of the target door as the optimized door position; The hinge hole drilling unit is used to drill a hole in the door hinge of the target door according to the position relationship of the optimized door position relative to the target vehicle body.

9. An electronic device, comprising: A memory and a processor, wherein the processor is used to implement the steps of the door sinking optimization method as described in any one of claims 1 to 7 when executing the computer program stored in the memory.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the door sinking optimization method according to any one of claims 1 to 7 are implemented.

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