Method, device, equipment and readable storage medium for determining door gap boundary

Abstract

The present invention provides a method, device, equipment and readable storage medium for determining the door gap boundary. The method for determining the door gap boundary includes: constructing a door gap boundary model, where the door gap boundary model includes a curb model and a vehicle model; taking the door hinge axis in the vehicle model as the center, rotating the curb model towards the vehicle model by a preset angle; and taking the intersection of the curb model and the outer surface of the vehicle model as the lower boundary of the door gap. Through the present invention, by simulating the model, the vehicle door is opened towards the curb by a preset angle, and the intersection of the curb model and the outer surface of the vehicle model is taken as the lower boundary of the door gap, that is, the contact surface between the door and the curb after the door is opened by the preset angle. Through the simulation of the model, the lower boundary of the door gap can be determined efficiently, intuitively and accurately, further providing a boundary reference for the design of the lower door gap to prevent the door from colliding with the curb when the door is opened, causing damage to the door.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive design, and particularly to a method, device, equipment and readable storage medium for determining the boundary of a car door gap. Background Art

[0002] During the vehicle model development process, the car door is an important passage for passengers to get in and out. In the design process of the car door opening and closing components, the design of the car door gap and the hinge angle is very important work. However, in this part of the work, the relationship between the car door and the curbstone during the opening process is easily overlooked by designers. If designers do not fully consider the relationship between the car door and the curbstone during the opening process, then in the actual use process after the vehicle leaves the factory, the car door is likely to collide with the curbstone when it is opened, resulting in damage to the vehicle. Therefore, in the design process of the car door gap, it is very important to determine the lower boundary line of the car door gap. However, currently, the determination of the lower boundary line of the car door gap often uses a manual method to check in CATIA (CATIA is the flagship product development solution of Dassault Systèmes in France, which helps manufacturers design their future products through modeling and supports all industrial design processes from the early project stage, detailed design, analysis, simulation, assembly to maintenance) software, resulting in low efficiency and low accuracy. Summary of the Invention

[0003] The main purpose of the present invention is to provide a method, device, equipment and readable storage medium for determining the boundary of a car door gap, aiming to solve the technical problem of how to efficiently and accurately determine the lower boundary of the car door gap.

[0004] In a first aspect, the present invention provides a method for determining the boundary of a car door gap, and the method for determining the boundary of the car door gap includes:

[0005] Construct a car door gap boundary model, where the car door gap boundary model includes a curbstone model and a vehicle model;

[0006] With the door hinge axis in the vehicle model as the center, rotate the curbstone model towards the vehicle model by a preset angle;

[0007] Take the intersection of the curbstone model and the outer surface of the vehicle model as the lower boundary of the car door gap.

[0008] Optionally, the horizontal distance between the vehicle model and the curbstone model is a first preset distance.

[0009] Optionally, the vertical height of the curbstone model is higher than the vertical height of the vehicle model by a second preset distance.

[0010] Optionally, the door gap boundary model further includes a road surface model, and the curb model and the vehicle model are both located on the road surface model. The angle between the curb model and the road surface model is a preset angle, and the slope between the curb model and the road surface model is a preset slope.

[0011] Optionally, after using the intersection of the curb model and the outer surface of the vehicle model as the lower boundary of the door gap, the following steps are included:

[0012] By adjusting the angle and position of the door hinge axis, a new door hinge axis is obtained;

[0013] Using the new door hinge axis as the door hinge axis, and returning to execute the step of rotating the curb model towards the vehicle model by a preset angle with the door hinge axis in the vehicle model as the center;

[0014] When the lower boundaries of a preset number of door gaps are obtained, the lower boundaries of the preset number of door gaps and the corresponding door hinge axes are used as the design reference for the lower door gap.

[0015] In a second aspect, the present invention further provides a device for determining a door gap boundary. The device for determining a door gap boundary includes:

[0016] A construction module for constructing a door gap boundary model, where the door gap boundary model includes a curb model and a vehicle model;

[0017] A rotation module for rotating the curb model towards the vehicle model by a preset angle with the door hinge axis in the vehicle model as the center;

[0018] A determination module for using the intersection of the curb model and the outer surface of the vehicle model as the lower boundary of the door gap.

[0019] Optionally, the lateral distance between the vehicle model and the curb model is a first preset distance.

[0020] Optionally, the device for determining the door gap boundary further includes an adjustment module for:

[0021] By adjusting the angle and position of the door hinge axis, a new door hinge axis is obtained;

[0022] Using the new door hinge axis as the door hinge axis, and returning to execute the step of rotating the curb model towards the vehicle model by a preset angle with the door hinge axis in the vehicle model as the center;

[0023] When the lower boundaries of a preset number of door gaps are obtained, the lower boundaries of the preset number of door gaps and the corresponding door hinge axes are used as the design reference for the lower door gap.

[0024] In a third aspect, the present invention further provides a device for determining the door gap boundary. The device for determining the door gap boundary includes a processor, a memory, and a program for determining the door gap boundary stored on the memory and executable by the processor. When the program for determining the door gap boundary is executed by the processor, the steps of the method for determining the door gap boundary as described above are implemented.

[0025] In a fourth aspect, the present invention further provides a readable storage medium. A program for determining the door gap boundary is stored on the readable storage medium. When the program for determining the door gap boundary is executed by a processor, the steps of the method for determining the door gap boundary as described above are implemented.

[0026] In the present invention, a door gap boundary model is constructed. The door gap boundary model includes a curb model and a vehicle model. With the door hinge axis in the vehicle model as the center, the curb model is rotated by a preset angle in the direction of the vehicle model. The intersection of the curb model and the outer surface of the vehicle model is used as the lower boundary of the door gap. In the present invention, with the door hinge axis in the vehicle model as the center, the curb model is rotated by a preset angle in the direction of the vehicle model, that is, the vehicle door is simulated to be opened by a preset angle towards the curb through the model. The intersection of the curb model and the outer surface of the vehicle model is used as the lower boundary of the door gap, that is, the contact surface between the door and the curb after the door is opened by the preset angle. Through the simulation of the model, the lower boundary of the door gap can be determined efficiently, intuitively, and accurately, further providing a boundary reference for the design of the lower door gap to prevent the door from colliding with the curb when the door is opened, causing damage to the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic flowchart of an embodiment of the method for determining the door gap boundary of the present invention;

[0028] Figure 2 It is a schematic diagram of the door gap boundary model of an embodiment of the method for determining the door gap boundary of the present invention;

[0029] Figure 3 It is a schematic diagram of the rotation of the curb model of an embodiment of the method for determining the door gap boundary of the present invention;

[0030] Figure 4 It is a schematic flowchart of the adjustment process of the door hinge axis of an embodiment of the method for determining the door gap boundary of the present invention;

[0031] Figure 5 It is a schematic diagram of the functional modules of an embodiment of the device for determining the door gap boundary of the present invention;

[0032] Figure 6Schematic diagram of the hardware structure of an embodiment of the device for determining the door gap boundary of the present invention.

[0033] The implementation, functional features and advantages of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Detailed implementation manners

[0034] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] In a first aspect, an embodiment of the present invention provides a method for determining the door gap boundary.

[0036] To more clearly show the method for determining the door gap boundary provided by the embodiments of the present application, first, the application scenario of the method for determining the door gap boundary provided by the embodiments of the present application will be introduced.

[0037] The method for determining the door gap boundary provided by the embodiments of the present application is applied in the design process of the opening and closing parts of the door. The design of the door gap and the design of the hinge angle are very important tasks. However, in this part of the work, the relationship between the door and the curbstone during the opening process is easily overlooked by the designer. If the designer does not fully consider the relationship between the door and the curbstone during the opening process, then after the vehicle leaves the factory and during the actual use process, the door is likely to collide with the curbstone when it is opened, resulting in damage to the vehicle. Therefore, during the design process of the door gap, it is necessary to efficiently and accurately determine the lower boundary of the door gap.

[0038] In one embodiment, refer to Figure 1 , Figure 1 is a schematic flowchart of an embodiment of the method for determining the door gap boundary of the present invention. As Figure 1 shown, the method for determining the door gap boundary includes:

[0039] Step S10, construct a door gap boundary model, and the door gap boundary model includes a curbstone model and a vehicle model.

[0040] In this embodiment, refer to Figure 2 , Figure 2 is a schematic diagram of the door gap boundary model of an embodiment of the method for determining the door gap boundary of the present invention. As Figure 2As shown, the boundary model of the door gap can be constructed by using CATIA software based on the curb information and vehicle information. Specifically, the curb information can refer to the provisions of the "Code for Urban Road Engineering Design" CJJ37-2012 (2016 Revised Edition) or use the curb information in the actual road. Here, the vehicle mainly refers to the vehicle for which the vehicle type design is required, especially the vehicle for which the door gap design is required. In CATIA software, the specific input of vehicle information can include vehicle width, vehicle front and rear wheelbases, vehicle front and rear wheel center coordinates in the fully loaded state (including coordinates in the X, Y, and Z directions), static radii of vehicle front and rear wheels in the fully loaded state, vehicle front and rear tire models, door hinge center point coordinates (including coordinates in the X, Y, and Z directions), inward inclination angle of the door hinge axis, forward inclination angle of the door hinge axis, door opening angle, etc.

[0041] Step S20: Rotate the curb model in the direction of the vehicle model by a preset angle with the door hinge axis in the vehicle model as the center.

[0042] In this embodiment, referring to Figure 3 , Figure 3 is a schematic diagram of the rotation of the curb model in an embodiment of the method for determining the door gap boundary of the present invention. As shown in Figure 3 , rotating the curb model in the direction of the vehicle model by a preset angle with the door hinge axis in the vehicle model as the center has the same effect as rotating the vehicle model in the direction of the curb model by a preset angle, that is, it is equivalent to opening the vehicle door around the door hinge axis by a preset angle towards the curb. The preset angle is the door opening angle. According to the specific type of vehicle, the door opening angle of the vehicle usually includes two or three gears, and the size of the door opening angle is different in different gears.

[0043] Step S30: Take the intersection of the outer surfaces of the curb model and the vehicle model as the lower boundary of the door gap.

[0044] In this embodiment, continue to refer to Figure 3 , the intersection of the outer surfaces of the curb model and the vehicle model, that is, the contact surface between the door and the curb after the door is opened by a preset angle. To prevent the door from colliding with the curb when the door is opened, the intersection (i.e., the contact surface) of the outer surfaces of the curb model and the vehicle model should be taken as the lower boundary of the door gap. In the case where the vehicle door has two or three gears, the intersection of the outer surfaces of the curb model and the vehicle model corresponding to the maximum door opening angle is the highest and is taken as the lower boundary of the door gap.

[0045] In this embodiment, by using CATIA software, a door gap boundary model is constructed based on the curb information and vehicle information. Then, it is simulated that the vehicle door rotates around the door hinge axis and opens to a preset angle towards the curb. The intersection of the curb model and the outer surface of the vehicle model, that is, the contact surface between the door and the curb after the door is opened to the preset angle. To prevent the door from colliding with the curb when the door is opened, the intersection (i.e., the contact surface) of the curb model and the outer surface of the vehicle model should be used as the lower boundary of the door gap. Through the simulation of the model, the lower boundary of the door gap can be determined efficiently, intuitively, and accurately, further providing a boundary reference for the design of the lower door gap to prevent the door from colliding with the curb and causing damage to the door when the door is opened.

[0046] Further, in one embodiment, the lateral distance between the vehicle model and the curb model is a first preset distance.

[0047] In this embodiment, the first preset distance is the distance between the vehicle and the roadside curb when the driver parks the vehicle. In the usual driving habits, it is about 20 centimeters. In the CATIA software, the first preset distance can be set and adjusted according to the specific design requirements of the door gap. It should be noted that after adjusting the value of the first preset distance, the corresponding lower boundary of the door gap will also change.

[0048] Further, in one embodiment, the vertical height of the curb model is higher than the vertical height of the vehicle model by a second preset distance.

[0049] In this embodiment, if the curb model and the vehicle model are on the same horizontal reference plane, that is, the vertical heights are the same, then the lower boundary of the door gap obtained is the contact point between the door and the curb after the door is opened to the preset angle. However, in order to better avoid the door from colliding with the curb, it is very necessary to set a certain safety distance. That is, in the CATIA software, the vertical height of the curb model is set to be higher than the vertical height of the vehicle model by a second preset distance. The second preset distance can be set and adjusted according to the specific design requirements of the door gap. For example, it is 15 millimeters. It should be noted that after adjusting the value of the second preset distance, the corresponding lower boundary of the door gap will also change.

[0050] Further, in one embodiment, the door gap boundary model further includes a road surface model. The curb model and the vehicle model are both located on the road surface model. The angle between the curb model and the road surface model is a preset angle, and the slope between the curb model and the road surface model is a preset slope.

[0051] In this embodiment, the curb and the vehicle are on the same road surface. However, in reality, the angle between the curb and the road surface is usually not a perpendicular 90 degrees. There is usually a certain angular deviation, and the curb and the road surface are usually not in an absolutely parallel state. There is usually a certain slope. Similarly, when adjusting the angle and slope of the curb and the road surface, the lower boundary corresponding to the door gap will also change. By considering the angle and slope of the curb and the road surface, a more reasonable lower boundary of the door gap can be obtained.

[0052] Further, in one embodiment, referring to Figure 4 , Figure 4 is a schematic diagram of the adjustment process of the door hinge axis for an embodiment of the method for determining the door gap boundary of the present invention. As shown in Figure 4 , after step S30, it includes:

[0053] Step S40, by adjusting the angle and position of the door hinge axis, a new door hinge axis is obtained;

[0054] Step S50, taking the new door hinge axis as the door hinge axis and returning to execute the step of rotating the curb model in the direction of the vehicle model by a preset angle with the door hinge axis in the vehicle model as the center;

[0055] Step S60, when the lower boundaries of the door gaps of the preset quantity are obtained, the lower boundaries of the door gaps of the preset quantity and the corresponding door hinge axes are used as the design reference for the lower door gap.

[0056] In this embodiment, the angle of the door hinge axis includes the forward tilt angle and the inward tilt angle, and the position of the door hinge axis includes the coordinates in the X, Y, and Z directions. After adjusting the angle and position of the door hinge axis, the door hinge axis changes, and a new door hinge axis is obtained. Then, return to execute step S20 and step S30, and different door hinge axes and the corresponding lower boundaries of the door gaps can be obtained. When the lower boundaries of the door gaps of the preset quantity (such as 100) are obtained, the data of the 100 groups of lower boundaries of the door gaps and the corresponding door hinge axes are provided to the vehicle model design department as the design reference for the boundary of the lower door gap.

[0057] Further, in one embodiment, in the CATIA software, the first preset distance, the second preset distance, the preset angle, and the preset slope can be adjusted and set respectively, and then return to execute step S20 and step S30 to obtain the corresponding lower boundaries of the door gaps. By continuously adjusting and setting, the lower boundaries of the door gaps under different settings are obtained, and further comparison is carried out to obtain a better lower boundary of the door gap.

[0058] In a second aspect, an embodiment of the present invention further provides a device for determining the door gap boundary.

[0059] Refer to Figure 5 , Figure 5 which is a schematic diagram of the functional modules of an embodiment of the device for determining the door split boundary of the present invention.

[0060] In this embodiment, the device for determining the door split boundary includes:

[0061] A construction module 10 for constructing a door split boundary model, where the door split boundary model includes a curb model and a vehicle model;

[0062] A rotation module 20 for rotating the curb model towards the vehicle model by a preset angle with the door hinge axis in the vehicle model as the center;

[0063] A determination module 30 for taking the intersection of the curb model and the outer surface of the vehicle model as the lower boundary of the door split.

[0064] Further, in one embodiment, the lateral distance between the vehicle model and the curb model is a first preset distance.

[0065] Further, in one embodiment, the vertical height of the curb model is higher than the vertical height of the vehicle model by a second preset distance.

[0066] Further, in one embodiment, the door split boundary model further includes a road surface model, and the curb model and the vehicle model are both located on the road surface model. The angle between the curb model and the road surface model is a preset angle, and the slope between the curb model and the road surface model is a preset slope.

[0067] Further, in one embodiment, the device for determining the door split boundary further includes an adjustment module for:

[0068] Obtaining a new door hinge axis by adjusting the angle and position of the door hinge axis;

[0069] Taking the new door hinge axis as the door hinge axis and returning to execute the step of rotating the curb model towards the vehicle model by a preset angle with the door hinge axis in the vehicle model as the center;

[0070] When obtaining the lower boundaries of the door splits with a preset quantity, taking the lower boundaries of the door splits with the preset quantity and the corresponding door hinge axes as the design references for the lower door splits.

[0071] Wherein, the functional implementation of each module in the above device for determining the door split boundary corresponds to each step in the embodiment of the method for determining the door split boundary above, and its functions and implementation processes will not be elaborated here one by one.

[0072] In a third aspect, an embodiment of the present invention provides a device for determining a door gap boundary. The device for determining a door gap boundary may be a device with data processing functions such as a personal computer (PC), a laptop computer, a server, etc.

[0073] Referring to Figure 6 , Figure 6 FIG. is a schematic hardware structure diagram of an embodiment of the device for determining a door gap boundary of the present invention. In an embodiment of the present invention, the device for determining a door gap boundary may include a processor 1001 (such as a Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components; the user interface 1003 may include a display screen (Display) and an input unit such as a keyboard (Keyboard); the network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a Wireless-FIdelity, WI-FI interface); the memory 1005 may be a high-speed random access memory (random access memory, RAM), or a stable memory (non-volatile memory), such as a disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001. Those skilled in the art can understand that Figure 6 the hardware structure shown in FIG. does not constitute a limitation to the present invention, and may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0074] Continuing to refer to Figure 6 , Figure 6 in FIG., the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a program for determining a door gap boundary. Among them, the processor 1001 may call the program for determining a door gap boundary stored in the memory 1005 and execute the method for determining a door gap boundary provided by the embodiment of the present invention.

[0075] In a fourth aspect, an embodiment of the present invention further provides a readable storage medium.

[0076] The readable storage medium of the present invention stores a program for determining a door gap boundary. When the program for determining a door gap boundary is executed by a processor, the steps of the method for determining a door gap boundary as described above are implemented.

[0077] Among them, the method implemented when the program for determining a door gap boundary is executed may refer to the various embodiments of the method for determining a door gap boundary of the present invention, which will not be elaborated here.

[0078] It should be noted that, in this document, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or system comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or system. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or system comprising such element.

[0079] The serial numbers of the above embodiments of the present invention are only for description and do not represent the superiority or inferiority of the embodiments.

[0080] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present invention, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium as described above (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions for causing a terminal device to execute the methods described in the various embodiments of the present invention.

[0081] The above are only the preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A method for determining the boundary of a door gap, characterized in that, The method for determining the door gap boundary includes: Constructing a door gap boundary model, which includes a curb model and a vehicle model; Taking the door hinge axis in the vehicle model as the center, rotating the curb model towards the vehicle model by a preset angle; Taking the intersection of the curb model and the outer surface of the vehicle model as the lower boundary of the door gap, and the intersection of the curb model and the outer surface of the vehicle model is the contact surface between the curb model and the outer surface of the vehicle model; The door gap boundary model further includes a road surface model. The curb model and the vehicle model are both located on the road surface model. The angle between the curb model and the road surface model is a preset angle, and the slope between the curb model and the road surface model is a preset slope.

2. The method for determining the door gap boundary according to claim 1, characterized in that The lateral distance between the vehicle model and the curb model is a first preset distance.

3. The method for determining the door gap boundary according to claim 1, characterized in that The vertical height of the curb model is higher than the vertical height of the vehicle model by a second preset distance.

4. The method for determining the door gap boundary according to claim 1, wherein After taking the intersection of the curb model and the outer surface of the vehicle model as the lower boundary of the door gap, it includes: Obtaining a new door hinge axis by adjusting the angle and position of the door hinge axis; Taking the new door hinge axis as the door hinge axis, and returning to execute the step of taking the door hinge axis in the vehicle model as the center and rotating the curb model towards the vehicle model by a preset angle; When obtaining the lower boundaries of the door gaps with a preset quantity, taking the lower boundaries of the door gaps with the preset quantity and the corresponding door hinge axes as the design reference for the lower door gap.

5. A device for determining the boundary of a car door gap, characterized in that The device for determining the door gap boundary includes: A construction module for constructing a door gap boundary model, which includes a curb model and a vehicle model; A rotation module for taking the door hinge axis in the vehicle model as the center and rotating the curb model towards the vehicle model by a preset angle; A determination module for taking the intersection of the curb model and the outer surface of the vehicle model as the lower boundary of the door gap, and the intersection of the curb model and the outer surface of the vehicle model is the contact surface between the curb model and the outer surface of the vehicle model; The door gap boundary model further includes a road surface model. The curb model and the vehicle model are both located on the road surface model. The angle between the curb model and the road surface model is a preset angle, and the slope between the curb model and the road surface model is a preset slope.

6. The determining device for the door gap boundary according to claim 5, characterized in that, The lateral distance between the vehicle model and the curb model is a first preset distance.

7. The determining device for the door gap boundary according to claim 5, wherein The device for determining the door gap boundary further includes an adjustment module for: Obtaining a new door hinge axis by adjusting the angle and position of the door hinge axis; Taking the new door hinge axis as the door hinge axis, and returning to execute the step of taking the door hinge axis in the vehicle model as the center and rotating the curb model towards the vehicle model by a preset angle; When obtaining the lower boundaries of the door gaps with a preset quantity, taking the lower boundaries of the door gaps with the preset quantity and the corresponding door hinge axes as the design reference for the lower door gap.

8. An apparatus for determining the boundary of a door gap, characterized in that, The device for determining the door gap boundary includes a processor, a memory, and a program for determining the door gap boundary stored on the memory and executable by the processor. When the program for determining the door gap boundary is executed by the processor, the steps of the method for determining the door gap boundary according to any one of claims 1 to 4 are implemented.

9. A readable storage medium, characterized in that, A program for determining the door gap boundary is stored on the readable storage medium. When the program for determining the door gap boundary is executed by a processor, the steps of the method for determining the door gap boundary according to any one of claims 1 to 4 are implemented.

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