Method and device for arranging graphical design elements on a seat cover of a vehicle seat

Patent metadata

Field	Value
Publication number	US-10347036-B2
Application number	US-201515325232-A
Country	US
Kind code	B2
Filing date	Jul 10, 2015
Priority date	Jul 11, 2014
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

A method, for arranging graphical design elements on a seat cover (1) of a vehicle seat, includes creating a three-dimensional seat cover model (2) having at least two three-dimensional cut models (2.1.1 to 2.1.7) connected by at least one seam (N) and visualizing the three-dimensional seat cover model (2) by a computer-assisted design tool (CAD) and positioning at least one graphical design element (G) on at least one cut part (1.1.1 to 1.1.7) with a drawing tool (ZW). An image of a graphic design element (G) is displayed on the three-dimensional seat cover model (2) in accordance with a UV transformation (UVT) of a corresponding cut model (2.1.1 to 2.1.7) with a texture display tool (TW) connected to the computer-assisted design tool (CAD).

First claim

The invention claimed is:

1. A method for arranging graphical design elements on a seat cover of a vehicle seat, the method comprising the steps of:
determining a three-dimensional seat cover model of a two-dimensional seat cover of a real vehicle seat;
UV mapping the three-dimensional seat cover model by way of a UV transformation into a two-dimensional cutting model pattern view in which two-dimensional design elements are created; and
outputting the created design elements in the three-dimensional seat cover model, wherein:
the three-dimensional seat cover model is created with at least two three-dimensional cutting models connected by way of at least one seam, and the three-dimensional seat cover model is visualized by way of a computer-aided design tool;
cutting parts, which correspond to the at least two cutting models, are arranged in at least one cutting drawing area which is displayed in a predetermined display form on a cutting drawing area output region of an output unit by way of a drawing tool;
at least one UV transformation is created for mapping of three-dimensional model point coordinates of at least one of the at least two three-dimensional cutting models onto two-dimensional cutting drawing area point coordinates of the two-dimensional cutting model pattern view which, in a pattern outer contour, substantially coincides with a cutting part outer contour of a corresponding cutting part;
at least one cutting drawing area output region is assigned to a display of textures on the three-dimensional seat cover model by way of a texture display tool, which is connected to the computer-aided design tool, for a transfer of textures from a predetermined monitor region;
at least one graphical design element is created and positioned by way of the drawing tool on at least one cutting part, wherein, by way of the texture display tool connected to the computer-aided design tool, a mapping of the graphical design element in accordance with the UV transformation of the corresponding cutting model is displayed on the three-dimensional seat cover model;
for at least one three-dimensional cutting model, creating a first of the two-dimensional cutting model pattern views by way of the UV transformation;
the pattern outer contour of the cutting model pattern view is adapted to the cutting part outer contour of the corresponding cutting part by displacement of at least one marking point;
parameters of the UV transformation and thus the pattern outer contour of the cutting model pattern view are adapted to the displacement of the at least one marking point;
adapting of the pattern outer contour of the cutting model pattern view to the cutting part outer contour of the corresponding cutting part and adapting of the pattern outer contour of the cutting model pattern view to the displacement of the at least one marking point are repeated until a deviation of the pattern outer contour of the cutting model pattern view from the cutting part outer contour of the corresponding cutting part falls below a predetermined deviation value; and
visible sewing markings on cutting parts on both sides of a connecting seam are brought approximately into alignment along an alignment direction perpendicular to the seam direction.

2. The method as claimed in claim 1 , wherein the three-dimensional seat cover model is created by sampling of a surface of a vehicle seat lined with a seat cover and sampling of at least one seam and is subsequently divided up along the at least one seam into the three-dimensional cutting models.

3. The method as claimed in claim 1 , wherein the seat cover comprises cover parts comprising an inner backrest cover, a seat cushion cover, an outer backrest cover and a headrest cover, wherein the cutting parts each respectively assigned to one of the cover parts, are arranged on a respective cutting drawing area.

4. The method as claimed in claim 1 , wherein the cutting parts are mapped onto the at least one cutting drawing area on a mapping scale of 1:1.

5. The method as claimed in claim 4 , wherein at least one cutting drawing area is square and has an edge length of 4096 pixels.

6. The method as claimed in claim 1 , wherein the cutting parts are displayed so as to be arranged symmetrically on at least one cutting drawing area.

7. A device for an arrangement of graphical design elements on a seat cover of a vehicle seat, the device comprising:
a processing unit; and
at least one display device connected to the processing unit, wherein the processing unit is, by way of at least one data processing program, formed as a computer-aided design tool, as a drawing tool and as a texture display tool, and the texture display tool is configured to transfer two-dimensional design elements, created by way of the drawing tool, into the computer-aided design tool, and to provide a visualization of a three-dimensional seat cover model and of the two-dimensional design elements in the three-dimensional seat cover model on the at least one display device, wherein the processing unit is configured to:
create a first of at least a plurality of two-dimensional cutting model pattern views by way of an UV transformation for at least one three-dimensional cutting model;
adapt a pattern outer contour of the cutting model pattern view to a cutting part outer contour of a corresponding cutting part by displacement of at least one marking point;
adapt parameters of the UV transformation and thus the pattern outer contour of the cutting model pattern view to displacement of the at least one marking point;
repeat adapting the pattern outer contour of the cutting model pattern view to the cutting part outer contour of the corresponding cutting part and adapting the pattern outer contour of the cutting model pattern view to the displacement of the at least one marking point until a deviation of the pattern outer contour of the cutting model pattern view from the cutting part outer contour of the corresponding cutting part falls below a predetermined deviation value; and
bring visible sewing markings on cutting parts on both sides of a connecting seam approximately into alignment along an alignment direction perpendicular to the seam direction.

8. A device according to claim 7 , wherein the processing unit is configured to:
determine the three-dimensional seat cover model of the seat cover;
UV map the three-dimensional seat cover model by way of the UV transformation into a two-dimensional cutting model pattern view in which the two-dimensional design elements are created; and
output the two-dimensional design elements in the three-dimensional seat cover model.

9. A method for arranging graphical design elements on a seat cover of a vehicle seat, the method comprising the steps of:
determining a three-dimensional seat cover model of a two-dimensional seat cover of a real vehicle seat;
UV mapping the three-dimensional seat cover model by way of a UV transformation into a two-dimensional cutting model pattern view in which two-dimensional design elements are created; and
outputting the two-dimensional design elements in the three-dimensional seat cover model, wherein:
for at least one three-dimensional cutting model, creating at least the two-dimensional cutting model pattern view by way of the UV transformation;
a pattern outer contour of a cutting model pattern view is adapted to a cutting part outer contour of a corresponding cutting part by displacement of at least one marking point;
parameters of the UV transformation and thus the pattern outer contour of the cutting model pattern view are adapted to the displacement of the at least one marking point;
the adapting of the pattern outer contour of the cutting model pattern view to the cutting

Assignees

• Adient Luxembourg Holding Sarl
• Adient Luxembourg Hodling S A R L

Inventors

• Oldach Sven
• Gries Petra

Classifications

• G06T2219/021

  Flattening · CPC title

• G06T19/006

  Mixed reality (object pose determination, tracking or camera calibration for mixed reality G06T7/00) · CPC title

• B60N2/5891

  characterised by the manufacturing process; manufacturing seat coverings not otherwise provided for · CPC title

• G06T15/10 Primary

  Geometric effects · CPC title

• G06T15/04

  Texture mapping · CPC title