JP6087883B2 - Design support system and design support method - Google Patents

Description

  The present invention relates to a design support system and a design support method for automatically designing a design target part and supporting design by determining whether or not the result of the automatic design satisfies a design target condition.

  Conventionally, there is a parametric design as a design support using CAD (Computer Aided Design) (see, for example, Patent Document 1). In parametric design, a design procedure for a design target part is stored in a memory in advance, and when a design parameter is input, the design target part is automatically designed according to the design procedure based on the design parameter. It is. Further, it is determined whether or not the automatically designed result satisfies the design target condition, and the determination result is output to a display or the like.

  Conventionally, a vehicle door is designed using such a design supporter. For example, as shown in FIG. 14, when designing the door 22 of the vehicle 20, design parameters are input for each door component such as the door hinge 40 and the door handle 50 and stored based on the design parameters. The layout of the door components is designed according to the design procedure. Specifically, as shown in FIG. 15, the door hinge 40, the door handle 50, the door lock device 60, and the door check 70 that restricts the opening operation of the door 22 at a predetermined opening position closer to the closing position than the fully open position, The layout of door components (hereinafter referred to as “design target elements”) is automatically designed. In addition, every time automatic design of the arrangement of each design target element is performed, it is determined whether or not the result of the automatic design satisfies design target conditions corresponding to the design target element.

JP-A-2005-174205

  By the way, for example, between the door hinge 40 and the door lock device 60, between the door handle 50 and the door lock device 60, and between the door hinge 40 and the door check 70, a predetermined mutual positional relationship, etc. There are design interdependencies. Therefore, in determining whether one automatically designed result satisfies a design target condition, the other automatically designed result affects. That is, even if the automatically designed door handle 50 satisfies the design target condition, the door lock device 60 automatically designed after the door handle 50 may not satisfy the design target condition. In this case, it is necessary to review the design of the door handle 50 in order to satisfy the design target condition of the door lock device 60, and the design parameter of the door handle 50 is changed again as shown in FIG. After designing the door handle 50, the design parameters of the door lock device 60 must be changed to design the door lock device 60. Therefore, it takes a lot of time to complete the design of the design target part including a plurality of design target elements.

  An object of the present invention is to provide a design support system capable of efficiently supporting design of a design target part including a plurality of design target elements.

The design support system for achieving the above object is a system that supports the design of a design target part including a plurality of design target elements, and uses the design target elements using a plurality of design parameters respectively corresponding to the design target elements. A plurality of automatic designs are performed for a part including a component , and all combinations of design parameters having a design interdependency are calculated, and automatic design is performed for a part including the design target element at a time. An automatic design unit, a determination unit that determines whether or not the result of the automatic design by the automatic design unit satisfies the design target condition corresponding to the design target element, and a list of a plurality of determination results And a display device that outputs and displays at a time .

According to this configuration, calculation is performed for all combinations of design parameters having interdependencies in design using a plurality of design parameters respectively corresponding to design target elements through the automatic design unit, and the design target elements are Automatic design is performed for the included parts at once. Further, through the determination unit, it is determined at a time whether or not the result of the automatic design by the automatic design unit satisfies the design target condition corresponding to the design target element. For this reason, for all design target elements that have a design interdependency, it is determined at a time whether or not the result of the automatic design satisfies the design target condition corresponding to them. The determination result can be output to the display device at a time. Therefore, it is possible to grasp a combination of design parameters that satisfy each design target condition at a high level.

Design support method for achieving the above object is also performed using a terminal device provided with a automatic design portion and a determination portion, the method of supporting the design target site design with multiple design target element, wherein A step in which the automatic design unit performs a plurality of automatic designs for a part including the design target element by using a plurality of design parameters respectively corresponding to the design target element, and includes all design parameters having a design interdependency relationship. An automatic design step for performing automatic design at once for a part including the design target element and a result of the automatic design by the determination unit corresponding to the design target element are respectively calculated. a determining step of determining a time whether satisfies the design target conditions, displays a list of a plurality of determination results And an output step of displaying output at once to location, the.

  According to this method, it is possible to achieve an operational effect according to the operational effect of the design support system.

  According to the present invention, it is possible to efficiently support design of a design target part including a plurality of design target elements.

1 is a schematic configuration diagram of a design support system according to an embodiment. The flowchart which shows the design procedure of the door of the embodiment. (A)-(c) is a figure which shows the design object in each design stage of the embodiment. (A) is a figure which shows the positional relationship between the parting line of the door seen from the front, and a hinge, (b) is a figure which shows the positional relation between the parting line and the hinge of the front end of the door seen from the side. Sectional drawing of the door along the horizontal direction of the door centering on a hinge. (A) is a side view of the door, (b) is a diagram showing the positional relationship between the parting line of the door and the handle as viewed from the front. Sectional drawing along line 7-7 in FIG. The figure which shows the positional relationship of a door lock apparatus and a key cylinder shaft. Sectional drawing of the vehicle along the horizontal direction centering on a door lock apparatus and a striker. The flowchart which shows the procedure of the arrangement | positioning design of the door component in the embodiment. The figure which shows an example of the image of the door displayed on the display of a display apparatus. The table | surface which shows the relationship between a vehicle model name and the numerical value of each design parameter. The graph which shows the relationship between door length and hinge pitch with the data of other vehicle types. The side view of a vehicle. The block diagram which shows the design procedure of arrangement | positioning of the conventional door component.

Hereinafter, an embodiment in which a design support system and a design support method are embodied will be described with reference to FIGS.
As shown in FIG. 1, the design support system supports the design of the vehicle 20, more specifically, the design of the door 22, and includes a terminal device 10 and a display device 12. The basic configuration of the door 22 that is a design target part is the same as that shown in FIG. 14 and is a known configuration.

  The terminal device 10 has a storage unit 10a that stores a control program, and an automatic design that performs various calculations in accordance with the control program so as to automatically design the arrangement of design target elements such as the door hinge 40 and the door handle 50 based on various data. A portion 10b is provided. As various data, the specification data of the vehicle 20 which is data relating to the structure of the frame of the vehicle 20, the model of door components (design target elements) such as the door hinge 40, the door handle 50, the door lock device 60, and the door check 70, etc. Basic specification data and vehicle 20 design data.

  The automatic design unit 10b automatically designs the door 22 using design parameters such as an attachment position and an attachment angle corresponding to each door component. More specifically, the automatic design unit 10b continuously performs automatic layout design for all door components at once.

In addition, the terminal device 10 includes a determination unit 10c that continuously determines at a time whether or not the result of the automatic design satisfies design target conditions corresponding to the door components.
The display device 12 includes a display, and displays the result automatically designed through the automatic design unit 10b as image data on the display based on the display drive signal from the terminal device 10. Further, the display device 12 displays the determination result (described later) by the determination unit 10c on the display.

Next, a procedure for designing the door 22 will be described.
As shown in FIG. 2 and FIG. 3A, when designing the door 22, first, automatic design of the arrangement of door components is performed (step S1). Next, as shown in FIGS. 2 and 3B, the door opening 21 of the vehicle 20 is drawn based on the design result of the arrangement of the door components (step S2). Next, as shown in FIG. 2 and FIG. 3C, the outer panel 31 a and the inner panel 31 b constituting the door panel 31 are drawn based on the design result of the arrangement of the door components and the drawing result of the door opening 21. (Step S3). Finally, as shown in FIG. 2, the entire door 22 is drawn (step S4).

  Next, a door hinge 40, a door handle 50, and a door lock device will be described regarding an automatic design method for arrangement of door components and a determination method for determining whether or not an automatically designed result satisfies a corresponding design target condition. 60 will be described as an example.

<Door Hinge 40>
As shown in FIGS. 4A and 4B, when arranging the pair of upper and lower door hinges 40, first, the model of the door hinge 40 used in the design and design basic data regarding the door hinge 40 are input to the terminal device 10. The As basic design data, the hinge pitch ΔX, which is the distance between the upper end of the upper door hinge 40 and the lower end of the lower door hinge 40, or the rotation center axis A of the door hinge 40 relative to the virtual axis extending in the vertical direction is used. There is a front view tilt angle and a side view tilt angle. Such design basic data is input to the terminal device 10 through input means such as a keyboard. Then, by using a plurality of mounting positions of the door hinge 40 that are design parameters, a plurality of arrangements of the door hinge 40 are automatically designed.

  When automatic design of the arrangement of the plurality of door hinges 40 is performed in this way, as a result of the automatic design, the parting line 22a of the outer plate of the door 22 and the rotation of the door hinge 40 are obtained as shown in FIG. Intersection points X1 and X2 with the moving center axis A are derived, respectively. Further, as shown in FIG. 4B, intersection points X3 and X4 between the parting line 22b at the front end of the door 22 and the rotation center axis A of the door hinge 40 are derived.

  Then, for each derivation result, it is determined whether or not the design target condition that the distance M1 between the intersection point X1 and the intersection point X3 is equal to or greater than a predetermined value Mth1 is satisfied. Further, it is determined whether or not the design target condition that the distance M2 between the intersection point X2 and the intersection point X4 is equal to or greater than a predetermined value Mth2 is satisfied.

  Further, as shown in FIG. 5, as a result of the automatic design, the locus of the parting line 22b at the front end of the door 22 when the door 22 is rotated about the rotation center axis A of the door hinge 40, the fender 24, Distances (shortest distances) M3 are respectively derived. Further, as indicated by a two-dot chain line in FIG. 5, the distance M4 between the parting line 22b at the front end of the door 22 when the door 22 is fully opened and the portion of the door hinge 40 attached to the body 28 is respectively Derived.

  Then, for each derivation result, it is determined whether or not the design target condition that the distance M3 is equal to or greater than a predetermined value Mth3 is satisfied. Further, it is determined whether or not the design target condition that the distance M4 is equal to or greater than a predetermined value Mth4 is satisfied.

<Door handle 50>
As shown in FIGS. 6A and 6B, when the door handle 50 is arranged, first, basic design data such as the type of the door handle 50 used for the design is input to the terminal device 10. Then, by using a plurality of mounting positions of the door handle 50, which are design parameters, or by using a plurality of depths of the concave portions 56 of the portion of the door 22 where the door handle 50 is mounted, automatic design of a plurality of arrangements of the door handles 50 is performed. Is done.

  When automatic design of a plurality of arrangements of the door handles 50 is performed in this way, the inclination angle α of the door handle 50 with respect to the horizontal direction is derived as a result of the automatic design, as shown in FIG. The

  For each derivation result, whether the inclination angle α is equal to or greater than the first predetermined angle αth1 and satisfies the design target condition that is equal to or smaller than the second predetermined angle αth2 (αth1 ≦ α ≦ αth2). Is judged.

  Also, as shown in FIG. 7, as a result of the automatic design, a distance M5 between the support portion 52 of the door handle 50 and the frame 54 inside the door 22 is derived. Further, a distance M6 between the frame 54 and the key cylinder shaft 58 is derived.

  Then, for each derivation result, it is determined whether or not the design target condition that the distance M5 is equal to or greater than a predetermined value M5th is satisfied. Further, it is determined whether or not the design target condition that the distance M6 is equal to or greater than a predetermined value M6th is satisfied.

<Door lock device 60>
As shown in FIG. 8, when the door lock device 60 is arranged, first, the type of the door lock device 60 used in the design, the door hinge 40 and the door handle 50 having a design interdependence with the door lock device 60 are firstly shown. The basic design data such as the model number is input to the terminal device 10. Further, as design basic data, there is a door length ΔL which is a distance between a rotation center axis A of the door hinge 40 and an engagement position where a door lock device 60 described later is engaged with the striker 68. Then, by using a plurality of mounting positions of the door lock device 60 as design parameters, automatic design of a plurality of arrangements of the door lock device 60 is performed. Specifically, as shown in FIG. 8, the position of the door lock device 60 is used such that the length M7 of the key cylinder shaft 58 of the door handle 50 becomes a predetermined value M7th.

  When automatic design of the arrangement of the plurality of door lock devices 60 is performed in this way, as a result of the automatic design, as shown in FIG. 9, the distance in the front-rear direction between the rear end of the frame 54 and the door lock device 60 is obtained. M8 is derived respectively. Further, a distance M9 between the rear end of the frame 54 and the door lock device 60 in the vehicle width direction is derived.

  Then, for each derivation result, it is determined whether or not the design target condition that the distance M8 is equal to or greater than a predetermined value M8th is satisfied. Further, it is determined whether or not the design target condition that the distance M9 is equal to or greater than a predetermined value M9th is satisfied.

Next, a procedure for arranging door components performed through the terminal device 10 will be described.
As shown in FIG. 10, in this series of processing, first, vehicle specification data stored in a data server (not shown) and design data of the vehicle 20 are read, and the door component ( Basic specification data of the door hinge 40, door handle 50,...) Is input to the terminal device 10 (step S11). Then, using a plurality of design parameters respectively corresponding to the door components, automatic design of the arrangement of the door components is performed for the entire door 22 including all door components (step S12). Next, it is determined at a time whether or not the result of the automatic design satisfies the design target condition corresponding to each door component (step S13). Then, the determination result is output (step S14), and this series of processing is terminated.

  As described above, whether or not the result of automatically designing the door 22 as a whole satisfies the design target condition corresponding to the door 22 is determined at a time, and the determination result is displayed on the display device 12 at a time. Can be output. Therefore, the designer can grasp a combination of design parameters that satisfy each design target condition at the highest level in a short time based on the list of the determination results.

  As a method of grasping the combination of design parameters that satisfy each design target condition at the highest level, the design parameter combination that maximizes the ratio of satisfied conditions among all the design target conditions is selected. can do. In this case, the design target condition may be weighted according to the importance.

  When the automatic design of the arrangement of the door components and the evaluation regarding the establishment rate of each design target condition are completed, the drawing of the door opening 21 and the door panel 31 are performed based on the combination of design parameters that satisfy each design target condition at the highest level. And the entire door 22 are sequentially drawn (see steps S2 to S4 in FIG. 2). These drawing operations are manually performed by the designer using the terminal device 10 or the like, but the drawing operations can be automatically performed by the terminal device 10 according to the control program.

Now, when drawing of the whole door 22 is completed, in this embodiment, the image of the door 22 is displayed on the display of the display apparatus 12 as follows, for example.
That is, as shown in FIG. 11, the side view of the door 22 and a part of the front view of the door 22 are displayed on the display by solid lines. Moreover, some door components, such as a pair of door hinge 40 and the door lock apparatus 60, are displayed with a broken line.

  Here, at a position corresponding to the hinge pitch ΔX, a numerical value (for example, a: 410 mm) of the hinge pitch ΔX in a combination of design parameters that satisfies each design target condition at the highest level is the upper end of the upper door hinge 40. It is displayed with an arrow extending between the lower end of the lower door hinge 40. Below this numerical value, the numerical values of the hinge pitch ΔX (for example, b: 430 mm, c: 420 mm) in the combination of the second and third highest design parameters that satisfy each of the design target conditions are used as reference values. Is displayed. Further, the lower limit value of the recommended range of the hinge pitch ΔX (in this case, ≧ 400 mm: OK) is displayed.

  At a position corresponding to the door length ΔL, a numerical value (for example, a: 1000 mm) of the door length ΔL in a combination of design parameters satisfying each design target condition at the highest level is displayed with an arrow. Below this numerical value, the numerical values of the door length ΔL (for example, b: 990 mm, c: 980 mm) in the combination of the second and third highest design parameters that satisfy each design target condition are used as reference values. Each is displayed. Further, a lower limit value (in this case, ≧ 900 mm: OK) of the recommended range of the door length ΔL is displayed.

  At the position corresponding to the handle height ΔH, which is the distance between the ground surface and the door handle 50, the numerical value of the handle height ΔH in the combination of the design parameters satisfying each design target condition at the highest level and each design The numerical value of the handle height ΔH in the combination of design parameters with the second and third highest design parameters is displayed with an arrow (not shown).

In addition, design parameters related to the arrangement of door components are displayed as necessary.
In addition, as shown in FIG. 12, in the display, the numerical value of each design parameter in the combination of the top three design parameters with the highest establishment rate of each design target condition (the establishment rate is as shown in FIG. 12). A table in which a:..., B:..., C:...) And upper limit values or lower limit values of the recommended ranges are displayed in descending order. In this table, numerical values of each design parameter in the existing vehicle (vehicle types A, B, C) are displayed as reference values together with the vehicle type.

  Further, as shown in FIG. 13, a graph showing the relationship between the door length ΔL and the hinge pitch ΔX is displayed on the display based on the data in the table shown in FIG. In this graph, in addition to the relationship in the design target vehicle, the relationship in the existing vehicle is displayed as a reference value together with the vehicle type. In the figure, the shaded area is outside the recommended range of the hinge pitch ΔX.

According to the design support system according to the present embodiment described above, the following effects can be obtained.
(1) The terminal device 10 automatically designs the entire door 22 using design parameters respectively corresponding to door components (design target elements), and all door configurations having a design interdependency relationship. An automatic design unit 10b that performs automatic design at once for the entire door 22 including parts is provided. Further, the terminal device 10 includes a determination unit 10c that determines at a time whether or not the result of the automatic design satisfies design target conditions corresponding to the door components.

  According to such a configuration, it is determined at a time whether or not the result of automatically designing the door 22 as a whole satisfies a design target condition corresponding to the result, and the determination result is displayed on the display device 12. It is possible to output at once. Therefore, for example, a combination of design parameters satisfying each design target condition at the highest level can be grasped in a short time. Therefore, it is possible to efficiently support the design of the door 22 (design target part).

  (2) The design support method automatically designs the entire door 22 using design parameters respectively corresponding to the door component, and includes all door components having a design interdependency. An automatic design step for automatically designing the entire door 22 at a time is provided. Further, the design support method includes a determination step of determining at a time whether or not the result of the automatic design by the automatic design step satisfies a design target condition corresponding to the door component. The design support method further includes an output step for outputting a determination result obtained by the determination step.

According to such a program, the same effect as the effect (1) can be achieved.
(3) The generated image of the door 22 is displayed on the display of the display device 12, and the top 3 having a high establishment rate of each design target condition at a position corresponding to the design parameter of the door component in the displayed image. The numerical value of each design parameter (for example, hinge pitch ΔX) in the combination of the two design parameters is displayed. For this reason, the designer can simultaneously grasp the numerical value of the design parameter and the target portion in the image of the door 22, and can appropriately and easily grasp the validity of the numerical value of the design parameter.

  (4) In the table displayed on the display, numerical values of design parameters (for example, hinge pitch ΔX, etc.) in a combination of the top three design parameters having a high establishment rate of each design target condition are displayed. Also, in this table, numerical values of design parameters in the existing vehicle are displayed. For this reason, the designer can compare the numerical value of the design parameter with the numerical value of the design parameter in the existing vehicle, and can appropriately and easily grasp the validity of the numerical value of the design parameter.

The design support system according to the present invention is not limited to the configuration exemplified in the above-described embodiment, and can be implemented as, for example, the following forms appropriately modified.
In the above embodiment, the drawing of the door opening 21, the drawing of the door panel 31, and the drawing of the door 22 are performed based on a combination of design parameters that satisfy each design target condition at the highest level. In addition to this, the drawing of the door opening 21, the drawing of the door panel 31, and the drawing of the door 22 are performed based on the combination of the second and third highest design parameters that satisfy each design target condition. You can also.

  In the above-described embodiment, an example in which automatic design is performed on all design target elements at once through the terminal device 10 is illustrated, but the present invention is not limited to this. In other words, any design can be used as long as two or more design target elements having a design dependency relationship with each other can be designed automatically.

  -The design object part based on this invention is not restricted to the door 22 of a vehicle, It can apply also to the other site | part of a vehicle. In addition, the present invention is not limited to those applied to vehicle design, and the present invention can also be applied to the design of products other than vehicles such as home appliances.

(Additional note regarding means for solving the problem)
Means for solving the above-mentioned problems include the following (Appendix 1) to (Appendix 3), which are technical ideas that can be grasped from the above-described embodiment and its modifications.

(Additional item 1)
The determination unit derives a design value related to the design target element as a result of the automatic design by the automatic design unit, and whether the design target condition is satisfied based on a comparison between the design value and a predetermined value The design support system according to claim 1 or 2 , wherein

(Appendix 2)
The automatic design unit performs automatic design of a part including the design target element using a parameter relating to an arrangement mode of the design target element as the design parameter, and the determination unit includes the design value as the design value. The distance between the design target element and another element is derived, and it is determined whether the design target condition is satisfied based on a comparison between the distance and a predetermined value. Design support system.

(Additional Item 3)
The automatic design unit performs automatic design of a part including the design target element using a parameter relating to an arrangement mode of the design target element as the design parameter, and the determination unit includes the design value as the design value. The relative angle between the design target element and another element is derived, and it is determined whether the design target condition is satisfied based on a comparison between the relative angle and a predetermined value. Design support system.

  DESCRIPTION OF SYMBOLS 10 ... Terminal device, 10a ... Memory | storage part, 10b ... Automatic design part, 10c ... Judgment part, 12 ... Display apparatus (output part), 20 ... Vehicle, 21 ... Door opening part, 22 ... Door (design object part), 22a ... Cut line, 22b ... Cut line, 24 ... Fender, 28 ... Body, 31 ... Door panel, 31a ... Outer panel, 31b ... Inner panel, 40 ... Door hinge, 50 ... Door handle, 52 ... Support, 54 ... Frame, 56 ... Recess, 58 ... key cylinder shaft, 60 ... door lock device, 66 ... window glass, 68 ... striker, 70 ... door check.

Claims (3)

In a system that supports the design of a design target part including a plurality of design target elements,
A plurality of design parameters corresponding to the design target element are used to perform a plurality of automatic designs for a part including the design target element, and calculation is performed for all combinations of design parameters having a design interdependency relationship. An automatic design unit that performs automatic design at once for a part including the design target element;
A determination unit that determines at a time whether the result of the automatic design by the automatic design unit satisfies the design target condition corresponding to each of the design target elements;
A display device that outputs and displays a list of a plurality of determination results at a time ,
Design support system. The automatic design unit performs automatic design of a part including the design target element by using a plurality of parameters related to an arrangement mode of the design target element as the design parameter.
The design support system according to claim 1 . In a method for supporting the design of a design target part that is performed using a terminal device including an automatic design unit and a determination unit and includes a plurality of design target elements,
The automatic design unit performs a plurality of automatic designs for a part including the design target element using a plurality of design parameters respectively corresponding to the design target element, and includes design parameters having a design interdependency relationship. An operation is performed for all combinations, and an automatic design step for performing automatic design at once for a part including the design target element;
A determination step of determining at a time whether or not the result of the automatic design by the determination unit satisfies a design target condition corresponding to the design target element;
An output step of outputting and displaying a list of a plurality of judgment results at once on a display device ,
Design support method.