EP3347838A1

EP3347838A1 - Method and device for generating a sectional view of a body of a vehicle

Info

Publication number: EP3347838A1
Application number: EP16759990.1A
Authority: EP
Inventors: Adrian Golling; Johannes Bauer
Original assignee: Bayerische Motoren Werke AG
Current assignee: Bayerische Motoren Werke AG
Priority date: 2015-09-08
Filing date: 2016-08-11
Publication date: 2018-07-18
Also published as: CN107873093A; US11010502B2; US20180196912A1; DE102015217149A1; WO2017041986A1; CN107873093B

Abstract

The invention relates to a method (400) for generating a sectional view (210) of a body (100) of a vehicle. The method (400) has a step of displaying (401) a first sectional view (210) of the body (100) on a screen, wherein the first sectional view (210) comprises two surfaces of two components (201, 202) of the body (100), said surfaces adjoining each other at a first transition point. The method (400) additionally has a step of displaying (402) a joint catalog (300) comprising a plurality of defined joint types (301), wherein a joint type (301) defines a defined joint sectional view for a joint (200) between two surfaces. The method (400) further has a step of detecting (403) a selection of a first joint type (301) from the joint catalog (300) and a step of automatically adding (403) the defined joint sectional view for the first joint type (301) into the first sectional view (210) displayed on the screen at the first transition point such that the surfaces of the two components (201, 202) are connected together at the first transition point by the joint sectional view.

Description

METHOD AND DEVICE FOR CREATING A CUTTING DIAGRAM OF A BODY OF A VEHICLE

The invention relates to a method and a corresponding device that support a user in the design phase of a vehicle thereby, a technical possible

Realizing a body of a vehicle to determine.

During the design phase of a vehicle (especially a road vehicle, such as a motorcycle), the design of the body of the vehicle is typically revised and refined several times. In this context, mostly CAD (Computer Aided Design) programs are used to provide information about the installation space and the technical

To determine the manufacturability of the body. A current design of the body can be visually scanned three-dimensional, and the resulting point clouds can then be combined into usable areas of components.

To check the technical feasibility of a body part, a cutting plan can be created over the entire circumference of the body part. This sectional plan also includes concept sections or sectional drawings of the part separations, also referred to as joints. A conceptional section or a sectional drawing thereby comprise a locally limited section at a specific position of the body of the vehicle. The sectional drawing represents the geometry planned there and, at the same time, the required installation space in one plane.

Creating a sectional drawing is typically time consuming. In particular, the division of the body of the vehicle into technically feasible components proves to be time-consuming. The present document addresses the technical problem of providing a computer-implemented method and apparatus that enable a user to speed up the creation of a cross-sectional view of the body of a vehicle.

The object is solved by the independent claims. advantageous

Embodiments are described, inter alia, in the dependent claims. In one aspect, a method of making a cross-sectional view of a body of a vehicle (particularly a road vehicle, such as a vehicle) is disclosed

Motorcycle or a passenger car). Alternatively or additionally, the method may be designed to create or update a three-dimensional model of the body of a vehicle. The procedure can be performed on a computer with a screen. The process can be part of a CAD

(Computer Aided Design) program to be implemented.

The method includes displaying a first cross-sectional view of the body on a screen. In this case, the first cross-sectional drawing can be created on the basis of a current three-dimensional model of the body (for example for a specific first cutting plane) and displayed on the screen. The first cross-sectional drawing comprises two surfaces of two different components of the body, which at a first

Adjoin the transition point. The first transition point typically lies on the selected first cut plane for which the first cut drawing was made. The surfaces of the components may be shown in the first sectional drawing e.g. be represented as one-dimensional lines.

The method further includes displaying a joint catalog having a plurality of predefined joint types. A joint type defines a predefined joint cut for a joint between two adjoining surfaces. The

Different joint types typically have different joint cuts.

A joint type of the plurality of predefined joint types can further define a three-dimensional model of a corresponding joint. Thus, based on a selected joint type, the three-dimensional body model can be efficiently supplemented with a joint between the two components.

A joint type of the plurality of predefined joint types is typically designed such that a corresponding joint between two components in one

Manufacturing process can actually be made. In other words, the predefined joint types can be defined in such a way that the corresponding joints can also be produced (possibly in an efficient manner). Thus, errors in creating a three-dimensional model of the body, which affect the production of an actual body based on the three-dimensional model, be avoided early.

The method further includes detecting a selection of a first joint type from the joint catalog. The selection can in particular via an input means of a

Computers are recorded.

Furthermore, the method includes automatically inserting the predefined joint cut for the first joint type at the first transition point into the first joint type

Screen shown first sectional drawing. The joint-cut can be inserted in such a way that the surfaces of the two components are connected to each other at the first transition point by the joint-cut. In particular, the three-dimensional model of the body can be updated by the selected first joint type, so that an edge between the two components comprises the joint corresponding to the first joint type. From the updated model, an updated first sectional drawing can then be determined and displayed on the screen.

By providing a predefined joint catalog, three-dimensional body models can be supplemented efficiently and reliably with a view to transitioning between components. In particular, the creation of sectional drawings can be accelerated with a predefined joint catalog.

A Groove type can define default values for one or more Groove parameters for the corresponding Groove. The one or more joint parameters may e.g. a joint width of the joint cut between the surfaces of two components and / or a projection of the surface of a first component over the surface of a second component at the joint-cut. A joint can be inserted into the model of the body with these standard values. In particular, the joint cut for the first joint type with the standard values for the one or more joint parameters may be inserted in the first section drawing. Providing standard values for joint parameters can further accelerate the completion of a body model and the creation of a cross-sectional drawing. Furthermore, possible

Sources of error when creating a sectional drawing can be eliminated.

The method may further comprise detecting an input relating to a value of a joint parameter of the first joint type (eg, via the input means of a computer). In addition, the method may include automatically inserting (or fitting) of the predefined joint cut for the first joint type into the first (or first) section drawing with the acquired value for the joint parameter. Thus, it may be possible for a user to enter values deviating from a standard value for a joint parameter so that the model of the body and / or the first sectional drawing can be adapted and individualized accordingly.

The plurality of predefined joint types of the joint catalog may e.g. comprise at least one type of joint for a transition to a tank cap as one of the two components. Alternatively or additionally, the plurality of predefined joint types of the joint catalog may comprise at least one joint type for a transition to a seat of a motorcycle as one of the two components. More generally, the joint catalog may include at least one type of joint for a transition to an at least partially standardized component having at least partially standardized dimensions. The change of a value of a joint parameter for such a joint type can be inhibited, so that it is automatically ensured that the joint to the standardized component given standardized properties.

The method may further comprise displaying a second cross-sectional view of the body on the screen, the second cross-sectional drawing comprising the two faces of the two body parts adjacent to one another at a second transition point. In other words, another (i.e., second) cross-sectional view may be obtained and displayed for another slice plane (from the model of the body). The method may be configured such that the predefined joint cut for the first joint type is automatically displayed at the second transition point in the second sectional drawing shown on the screen (without a need to re-select the joint type) , This can be done in particular by the fact that the first time a joint type for the transition between the two components, the entire model of the body is updated with respect to the edge between the two components. So after updating any

Cross-section drawings for arbitrary cutting planes are determined with the joint cut and displayed on the screen. Thus, the determination of sectional drawings can be further accelerated.

In another aspect, a device (eg, a computer or a server) for creating a three-dimensional model of a body of a vehicle is described. The device comprises a processor, input means and a screen. The processor is configured to cause a first cross-sectional view of the body to be displayed on the screen, the first cross-sectional drawing comprising two areas of two body parts adjacent to one another at a first transition point. The first sectional drawing can be made based on a current body model.

The processor is further configured to cause a Groove catalog to be displayed on the screen with a plurality of predefined Groove types, with a Groove type defining a predefined Groove cut for a Groove between two faces. In addition, the process is set up to determine that the input medium has been used to select a first joint type from the joint catalog.

Furthermore, the processor is adapted to insert the predefined joint cut for the first joint type at the first transition point into the first sectional drawing shown on the screen, so that the surfaces of the two components on the first

Transition point through the joints cut are connected. Alternatively or additionally, the processor may be configured to update the model of the body with respect to the joint between the two components by means of the selected first joint type.

In another aspect, a software (SW) program is described. The SW program can be set up to run on a processor and thereby perform the method described in this document.

In another aspect, a storage medium is described. The storage medium may include a SW program that is set up to run on a processor and thereby perform the method described in this document.

It should be understood that the methods, devices and systems described herein may be used alone as well as in combination with other methods, devices and systems described in this document.

Furthermore, any aspects of the methods, devices, and systems described herein may be combined in a variety of ways.

In particular, the features of the claims can be combined in a variety of ways. Furthermore, the invention will be described in more detail with reference to exemplary embodiments. Show

Figure 1 is an exemplary body of a motorcycle;

Figure 2 is an exemplary joint between two components of a body;

FIG. 3 shows an exemplary catalog of possible joint types for the transition between two components of a vehicle; and

FIG. 4 shows a flow diagram of an exemplary method for creating a

Sectional drawing for a body of a vehicle.

As set forth above, the present document is concerned with the assistance of a user of a CAD program in the technical review of a bodywork design of a vehicle. In particular, the present document is concerned with enabling a user to create in a time-efficient and error-free manner a sectional drawing for the body of a vehicle, from which a technically feasible division of the body of the vehicle into a plurality of components emerges.

Fig. 1 shows an exemplary body 100 of a motorcycle. The body 100 includes i.a. Furthermore, FIG. 1 illustrates different sectional planes 103 of the body 100. For these sectional planes 103, sectional drawings can be made, from which in particular the transition between different components of the body 100 of the motorcycle can emerge ,

Fig. 2 shows a section of an exemplary sectional drawing 21 0. In the

Section two components 201, 202 of the body 100 are shown, which are interconnected by a joint 200. The gap 200 has a specific shape or profile that is suitable for the transition of the two components 201, 202. The shape of the joint 200 may be defined by a particular type of joint.

Furthermore, the joint 200 has one or more joint parameters 211, 212, by means of which a specific joint type can be adapted to the specific conditions of the transition between the two components 201, 202. In the example illustrated, the one or two comprise a plurality of joint parameters 211, 212 a joint width 211 between the first component 201 and the second component 202 and a projection 212 of the first component 201 at the joint 200th The joints 200 between two components 201, 202 can be drawn manually in a CAD program. However, this process is very time consuming and can lead to errors. It has been found that the same type of joints 200 are often used for the transition between two components 201, 202. Thus, to speed up the creation of a cross-sectional drawing 210, a predefined joint catalog 300 may be provided in which a plurality of predefined different joint types 301 are defined. Such an exemplary joint catalog 300 is shown in FIG.

During the creation of a cross-sectional drawing 210, a suitable joint type 301 on the predefined joint catalog 301 can be selected for the transition between two components 201, 202. The selected joint type 301 may then be automatically inserted by the CAD program at the adjacent edges of the components 201, 202 to realize the transition between the two components 201, 202. In this case, default values for the one or more joint parameters 211, 212 of the selected joint type 301 can be used in a first step. A user can then manually change a value of a joint parameter 211, 212 if necessary.

By providing a predefined joint catalog 300, the creation of a sectional drawing 210 can be substantially accelerated. Furthermore, errors in the manual creation of a transition between two components 201, 202 can be avoided.

Thus, concept sections 210 of a body 100 can be created partially automated. The user can thereby certain elements (especially joints 200) of a

Concept interface 210 select from a predefined catalog 300, the selected elements are then inserted directly into the model of the body 100. By providing predefined, standardized elements 301, the quality of a concept section 210 and the resulting body 100 can be increased, since inappropriate geometries (in particular geometries of joints 200) can be ruled out from the outset.

Catalog 300 may include all relevant dimensions or parameter values of frequently applied joint geometries or joint types 301 (eg joint width, projections, associated tolerances, etc.) as well as sectional representations of joint types 301 with the associated position on the vehicle. Fig. 2 shows the section of a joint 200 from a typical joint plan. From the cut, the joints width 211 (eg 1 mm) and the supernatant 212 (eg 2mm) with their respective tolerances (of eg 0.5mm) can be seen. 3 shows an exemplary catalog 300 of the conceptual sections for standardized joint types 301 that can be used in a CAD program (eg CATIA V5).

While creating a section drawing 210, a joint type 301 and the associated conceptional cut of the joint (also referred to as joint cut) can be selected. Furthermore, the position between two components 201, 202 can be determined, at which a gap 200 according to the selected joint type 301 is to be inserted. For this purpose, the two surfaces can be selected in the CAD program, which represent the two components 201, 202 in the CAD program. Furthermore, a transition point can be defined at which the two surfaces are to be connected by means of a joint 200. A gap 200 is then automatically inserted between the two surfaces at the selected point according to the selected joint type 301 (typically with predefined values for the joint parameters 211, 212).

The catalog 300 may include joint types 301 with corresponding joint cuts for joints 200 that interconnect individual components 201, 202. The components 201, 202 may in particular comprise a fuel cap or a seat 101. The latter components are standard or component parts, in which standard dimensions are typically specified. Thus, e.g. In a bench seat, a certain amount of foam, a bench length and / or a height above the street are required by law or required to provide a certain level of comfort

sure. Furthermore, a diameter of a tank opening is typically specified for a tank lid. These predefined dimensions can be stored and parameterized with the predefined joint types 301 (for example as default values of the joint parameters 201, 212). If necessary, the dimensions can be adapted manually (except for standard parts where the dimensions are already specified by a supplier or the legislator).

4 shows a flowchart of an example method 400 for producing a sectional drawing 210 for a body 100 of a vehicle. The method 400 may be performed on a computer. In particular, the method 400 may be executed by a software program (in particular a CAD program) on a computer. The method 400 comprises displaying 401 a first sectional drawing 210 of the body 100 on a screen, wherein the first sectional drawing 210 comprises two faces of two components 201, 202 of the body 100 adjoining each other at a first transition point. Typically, for the representation of the first

Sectional drawing 210 based on a three-dimensional model of the body 100, the e.g. was created based on a scanned design of the body 100. The body 100 may have been divided into different components, which ensures that the body 100 can be manufactured, that different colors (on different components 201, 202) can be realized, and / or that the body 100 certain mechanical requirement Fulfills.

Each component 201, 202 may be represented by a surface having a particular shape in the three-dimensional model. By defining a first cutting plane 103 through the body 100, based on the three-dimensional model of the body 100, the first sectional drawing 210 corresponding to the first cutting plane 103 can be determined and displayed on the screen.

The method 400 further includes displaying 402 a joint catalog 300 having a plurality of predefined joint types 301. The joint catalog 300 may e.g. in response to an input by a user of the CAD program on the screen. A joint type 301 typically defines a predefined joint cut for a joint 200 between two surfaces. From the information defined by a joint type 301, a model for a joint 200 between any arbitrarily shaped components 201, 202 may be created. In particular, the course of a corresponding seam 200 along the contiguous edges of two components 201, 202 (e.g., perpendicular to the intersection plane 103) may be determined. Thus, by selecting a joint type 301 for a cutting plane 103, the entire course of a joint 200 between two components 201, 202 can be determined.

The method 400 further includes detecting 403 a selection of a first joint type 301 from the joint catalog 300. The selection may be acquired from computer input devices (eg, a keyboard, a mouse, and / or a tactile screen) become. In addition, the method 400 includes automatically inserting 403 the predefined joint cut for the first joint type 301 at the first transition point into the on-screen first sectional drawing 210 such that the surfaces of the two components 201, 202 at the first Transition point connected by the joint-cut. For this purpose, first the three-dimensional model of the body based on the selected joint type 301 for the transition between the two components 201, 202 can be updated. In particular, a gap 200 of the selected joint type 301 along the (entire) edge between the two

Components 201, 202 are inserted into the model of the body 00. From the

updated model of the body 100 can then be the updated first

Sectional drawing 210 determined with the joint-section between the surface of the two components 201, 202 and displayed on the screen.

The method 400 described in this document has a variety of advantages. In particular, the method 400 can contribute to quality assurance since inappropriate joint geometries for the body 100 of a vehicle can be automatically excluded already in the concept phase. Furthermore, by providing predefined joint types 301, consistent joint appearance (e.g., consistent joint appearance) can be achieved

Joint widths 21 1 and / or constant projections 212) are ensured.

In addition, joint geometries (e.g., undercuts) that can not be fabricated as part of a manufacturing process can be avoided automatically. Furthermore, the described method 400 can be used to create sectional drawings 210 with a reduced expenditure of time and with a reduced error rate. The manual adjustment of values of the joint parameters 211, 212 enables an efficient individualization of the predefined joint types 301.

The present invention is not limited to the embodiments shown. In particular, it should be noted that the description and figures are intended to illustrate only the principle of the proposed methods, apparatus and systems.

Claims

claims

1) A method (400) for producing a cross-sectional drawing (210) for a body (100) of a vehicle, the method comprising (400)

Depicting (401) a first sectional drawing (210) of the body (100) on a screen, wherein the first cross-sectional drawing (210) comprises two surfaces of two components (201, 202) of the body (100) which are connected to a first transitional Border each other;

Displaying (402) a joint catalog (300) having a plurality of predefined joint types (301), wherein a joint type (301) defines a predefined joint intersection for a joint (200) between two surfaces;

- detecting (403) a selection of a first joint type (301) from the joint catalog (300); and

- automatically inserting (403) the predefined joint cut for the first joint type (301) at the first transition point into the first sectional drawing (210) shown on the screen so that the surfaces of the two components (201, 202) connected at the first transition point by the joint-cut.

2) Method (400) according to claim 1, wherein

- defines a joint type (301) standard values for one or more joint parameters (2 1, 212) for the corresponding joint (200); and

- inserting the joint cut for the first joint type (301) with the default values for the one or more joint parameters (211, 212).

3) The method (400) of claim 2, wherein the method comprises one or more joint parameters (211, 212).

- A joint width (211) of the joint-section between the surfaces of two components (201, 202); and or

- A projection (212) of the surface of a first component (201) over the surface of a second component (202) at the joint-cut.

4) Method (400) according to one of claims 2 to 3, further comprising

- detecting an input relating to a value for a joint parameter (211, 212) of the first joint type (301); and - Automatic insertion of the predefined joint cut for the first joint type (301) into the first sectional drawing (210) with the acquired value for the joint parameter (211, 212).

5) The method (400) according to one of the preceding claims, wherein the plurality of predefined joint types (301) comprises:

- At least one fugue n-type (301) for a transition to a fuel cap as one of the two components (201, 202); and or

- At least one joint type (301) for a transition to a seat of a motorcycle as one of the two components (201, 202).

6) Method (400) according to one of the preceding claims, further comprising

- Representing a second sectional drawing (210) of the body (100) on the screen, wherein the second sectional drawing (210), the two surfaces of the two components (201, 202) of the body (100), which at a second transition point to each other adjacent; and

- Automatically displaying the predefined joint cut for the first joint type (301) at the second transition point in the second sectional drawing (210) shown on the screen.

7) The method (400) according to one of the preceding claims, wherein a joint type (301) of the plurality of predefined joint types (301) defines a three-dimensional model of a corresponding joint (200).

8) Method (400) according to one of the preceding claims, wherein a joint type (301) of the plurality of predefined joint types (301) is designed such that a corresponding joint (200) between two components (201, 202) in one

Manufacturing process can actually be made.

9) The method (400) according to one of the preceding claims, wherein the method (400) is performed by a CAD program on a computer with the screen.

10) A device for creating a three-dimensional model of a body (100) of a vehicle, the device comprising a processor, input means and a screen, and wherein the processor is set up, to cause a first cross-sectional drawing (210) of the body (100) to be displayed on the screen, the first cross-sectional drawing (210) comprising two faces of two components (201, 202) of the body (100) attached to a first one Adjoin the transition point;

- to arrange that a joint catalog (300) with a variety of

predefined joint type (301) is displayed on the screen, wherein a joint type (301) defines a predefined joint cut for a joint (200) between two surfaces;

to determine that a selection of a first joint type (301) from the joint catalog (300) has been made via the input means; and

- insert the predefined joint cut for the first joint type (301) at the first transition point into the first sectional drawing (210) shown on the screen so that the surfaces of the two components (201, 202) at the first transition Point connected by the joint-cut.