JP5260392B2 - New vehicle planning review support method - Google Patents

Description

  The present invention relates to a new vehicle plan study support method.

  Conventionally, various support methods for supporting planning examination or design have been proposed in order to efficiently perform planning examination or design of a vehicle (see Patent Documents 1 to 5).

JP 2003-99499 A JP 2003-108625 A JP 2004-302673 A JP 2002-366606 A JP 2007-4423 A

When planning and examining new vehicles, create an image of the external shape of the vehicle model, and when implementing the planning and review in a short time, you can easily manipulate the deformation of the external shape of the vehicle model while ensuring the feasibility of the vehicle. And it is required to be performed in a short time.
Therefore, it is conceivable to construct a vehicle model for studying new vehicle planning while sharing the platform constituting the existing vehicle.
In this case, when the outer shape of the vehicle model is deformed, the deformation of the outer shape can be realized by using the existing platform components that make up the existing platform, or a new component is produced as a platform component. If it is possible to grasp whether it is necessary to do this, it is preferable for planning and examining a new vehicle.
However, it cannot be said that the above-described prior art sufficiently satisfies such a requirement.
The present invention has been made in view of such circumstances, and the purpose of the present invention is to simply and to what extent a platform constituting an existing vehicle can be shared in constructing a vehicle model for examining a new vehicle plan. The object is to provide a new vehicle planning / consideration support method that is advantageous in reliably grasping.

In order to achieve the above object, the present invention provides a vehicle as a model for new vehicle plan review using a personal computer including a display device, an input device, and a storage device storing a new vehicle plan review support program. A new vehicle planning examination support method for supporting planning examination of a new vehicle by displaying a model on the screen of the display device, wherein the personal computer receives a plurality of existing platforms by receiving an input operation from an operator. A basic vehicle model construction step for constructing a vehicle model constructed by assembling a plurality of vehicle component parts on an existing platform made of component parts as a basic vehicle model, and the personal computer by accepting an input operation from an operator but the outer shape image of the basic vehicle model based on the basic vehicle model A first image display step of displaying on the screen, the personal computer by receiving an input operation from the operator, the appearance image of the basic vehicle model displayed on the screen on the operation of the user The basic computer model is deformed based on the deformation of the outer shape image, and the personal computer receives the input operation from the operator, so that the personal computer A vehicle model deformation step for absorbing the influence on the platform by adjusting the external dimensions of the platform components, and the personal computer accepting an input operation from the operator, the personal computer converts the external image of the deformed basic vehicle model. A second image display step for displaying on the screen, and an input operation from the operator; The personal computer, the adjustment amount is determined whether it is within the absorbable range by adjusting the amount of external dimension of the platform component according to the vehicle model deformation step uses an existing platform component by accepting A platform component that adjusts the outer dimensions when the determination result of the adjustment amount determination step is affirmative when the personal computer accepts an input operation from the determination step and an operator is an existing platform component A first display step for displaying on the screen a first display indicating that the personal computer is configured , and the personal computer accepts an input operation from the operator, and the determination result of the adjustment amount determination step is negative. In some cases, the platform structure is used to adjust the external dimensions. A second display step of performing a second display on the screen indicating that the component is composed of a newly produced platform component, and the first display by the first display step includes: The external image of the platform component for adjusting the external dimension in a state where the external image of the platform component for adjusting the external dimension is superimposed on the external image of the deformed basic vehicle model and displayed on the screen. Is displayed in a first display color different from the color for displaying the outer shape image of the deformed basic vehicle model, and the second display in the second display step is the deformed basic vehicle model. In the state where the outline image of the platform component for adjusting the outside dimension is superimposed on the outside image and displayed on the screen, the platform for adjusting the outside dimension is displayed. A display for displaying a second display color different appearance image of the form components as the first display color.

According to the present invention, the influence on the existing platform due to the deformation of the basic vehicle model is absorbed by adjusting the outer dimensions of the platform components, and the adjustment amount of the outer dimensions of the platform components uses the existing platform components. It is judged whether it is in the range which can be absorbed by doing. Then, according to the determination result, it is displayed whether an existing part can be used as a platform component for adjusting the outer dimension or whether a platform component for adjusting the outer dimension needs to be newly manufactured.
Therefore, when constructing a vehicle model for studying new vehicle planning, it is advantageous to easily and intuitively grasp how much the platform constituting the existing vehicle can be shared.

It is a block diagram of the new vehicle plan examination support system to which the present invention is applied. 3 is a block diagram showing a configuration of a client terminal 6. FIG. 3 is a functional block diagram of a server 2 and a client terminal 6. FIG. It is a flowchart of the new vehicle plan examination support method in an embodiment. It is explanatory drawing of deformation | transformation operation of the external shape image of a vehicle model. It is explanatory drawing of deformation | transformation operation of the external shape image of a vehicle model. It is a top view of the vehicle explaining a platform component. It is a side view of the vehicle explaining a platform component. (A) is an enlarged view of part a in FIG. 8, (B) is an enlarged view of part b in FIG. 8, and (C) is an enlarged view of part c in FIG. It is a front view of the vehicle explaining a platform component. (A) is an enlarged view of the a part of FIG. 10, (B) is an enlarged view of the a part of FIG. It is a rear view of a vehicle explaining a platform component. It is an enlarged view of the part a of FIG. It is a top view of the vehicle explaining a basic specification and a measurement location. It is a side view of the vehicle explaining a basic specification and a measurement location. It is a front view of the vehicle explaining a basic specification and a measurement location. It is a rear view of a vehicle explaining basic specifications and measurement points. It is explanatory drawing of a ground line and a number line (vehicle body reference | standard). It is a side view of the vehicle which shows the silhouette line which shows the external shape outline of a vehicle model. It is explanatory drawing of deformation | transformation operation of the external shape image of a vehicle model. It is explanatory drawing which shows the 1st display by deformation | transformation operation of the external shape image of a vehicle model. It is explanatory drawing which shows the 2nd display by deformation | transformation operation of the external shape image of a vehicle model.

Next, an embodiment of the present invention will be described with reference to FIGS.
First, the configuration of a new vehicle plan review support system that executes the method of the present invention will be described.
As shown in FIG. 1, the new vehicle plan review support system 8 includes a server 2 and one or more client terminals 6 connected to the server 2 via a communication network 4.
Server 2 constitutes each database mentioned below.
As the communication network 4, various conventionally known communication networks such as a LAN and a WAN can be used.

The client terminal 6 is configured by a personal computer.
As shown in FIG. 2, the client terminal 6 includes a central processing unit (CPU) 6A, a main storage device 6B, an external storage device 6C, an input device 6D, a display device 6E, a communication device 6F, and the like. 6A, 6B, 6C, 6D, 6E, and 6F are connected by a bus 6G.
The main storage device 6B provides a working area for the central processing unit 6A, and is constituted by a RAM or the like.
The external storage device 6C stores a new vehicle plan review support program and the like in addition to a conventionally known control program and information, and is composed of, for example, a hard disk device.
The input device 6D is composed of a keyboard, a mouse, and the like, and receives an operator's input operation.
The display device 6E is composed of a display device, and outputs data such as images and characters on the screen.
The communication device 6 </ b> F exchanges information with the server 2 via the communication network 4.
The central processing unit 6A controls the main storage device 6B, the external storage device 6C, the input device 6D, the display device 6E, and the communication device 6F by executing the control program.
Further, the central processing unit 6A implements the functions of the respective units shown in FIG. 3 by executing the new vehicle plan review support program.

Next, the server 2 will be described.
As shown in FIG. 3, the server 2 includes an existing vehicle model database (hereinafter referred to as DB) 10, an existing vehicle 2DDB 12, a platform component DB 14, a vehicle component DB 16, and the like.

  Existing vehicle 3D model DB10 stores the vehicle model which shows the three-dimensional shape of the existing vehicle.

  The existing vehicle 2DDB 12 stores data indicating the dimensions of each part when the existing vehicle is expressed on a two-dimensional drawing, that is, data of a basic layout.

The platform component DB 14 stores data indicating the external shape and external dimensions of a plurality of existing platform components constituting the platform.
Here, the platform and the platform components will be described.
The platform is an important part that determines the basic performance of the vehicle, and is called a chassis without an upper body.
When an automobile is made, a large amount of cost is spent on the platform, and different types of vehicles are made by variously changing the vehicle components assembled to the platform.
The platform is composed of a plurality of existing platform components.
The platform component includes an underbody that constitutes most of the platform, and a frame assembly component that is assembled to the underbody.
Here, the underbody is a frame called a main floor or the like, and includes a floor pan, a side member, a cross member, a side sill, and the like.
Further, the frame assembly parts are an engine, a power train, a muffler, a fuel tank, a suspension, and the like, including an axle (axle), a suspension arm, and the like.
In the present embodiment, these existing platform components are divided into two types: fixed platform components that fix the outer dimensions, and deformed platform components that deform the outer dimensions in conjunction with the deformation of the basic vehicle model. Define.
In this embodiment, by using the fixed platform components that fix the outer dimensions in this way, in other words, by making the platform components common, it is easy to create a vehicle model for planning examination in a short time. I can do it.

The vehicle component DB 16 stores data indicating the external shape and external dimensions of a plurality of existing vehicle component parts that constitute a vehicle by being assembled to a platform.
In the present embodiment, the vehicle components are components that mainly determine the outer shape and design of the vehicle and the vehicle interior space, and include an outer plate of the upper body, trim components in the vehicle interior, a seat, and the like.
The outer plate of the upper body and the trim parts in the passenger compartment are parts that are deformed in response to changes in the appearance and design of the vehicle.

Next, the client terminal 6 will be described.
As described above, the client terminal 6 functions as the following units when the central processing unit 6A executes the new vehicle plan review support program.
In the present embodiment, the client terminal 6 includes a basic vehicle model construction unit 40, an image display unit 42, a vehicle model deformation unit 44, an adjustment amount determination unit 45, a vehicle model measurement unit 46, a vehicle model output unit 48, and the like. It is configured.

The basic vehicle model construction unit 40 constructs a vehicle model configured by assembling a plurality of vehicle component parts on an existing platform composed of a plurality of platform component parts as a basic vehicle model.
In the present embodiment, the basic vehicle model construction unit 40 receives the vehicle model indicating the three-dimensional shape of the existing vehicle read from the existing vehicle 3D model DB 10 and the basic layout data of the existing vehicle read from the existing vehicle 2DDB 12. Providing and constructing a basic vehicle model having necessary and sufficient information for creating a new vehicle planning study model.
The basic vehicle model includes a shape of a vehicle when the vehicle is viewed from the outside and a shape of a vehicle compartment when the vehicle is viewed from the vehicle interior.

The image display unit 42 displays an outline image of the basic vehicle model on the screen of the display device 6E based on the basic vehicle model constructed by the basic vehicle model construction unit 40.
Further, the image display unit 42 displays a basic vehicle model deformed by the vehicle model deforming unit 44 described below, that is, an external image of a new vehicle plan study model on the screen of the display device 6E.
Further, the image display unit 42 superimposes the outline image of the platform component on the outline image of the basic vehicle model on the screen of the display device 6E based on the platform component model read from the vehicle component DB 16. It is.
Further, the image display unit 42 displays the platform component parts with different display forms based on the determination result of the adjustment amount determination unit 45 described below.
Here, the external image of the basic vehicle model and the external image of the new vehicle planning examination model are an external image as a three-dimensional shape drawn on a three-dimensional space and a two-dimensional shape drawn on a plane. It includes both the outline image.
In the present embodiment, the image display unit 42 displays an image showing the shape of the passenger compartment on the screen of the display device 6E in addition to the external images of the basic vehicle model and the new vehicle planning study model.

The vehicle model deforming unit 44 deforms the outer shape image of the basic vehicle model displayed on the screen of the display device 6E based on the operation of the user, and deforms the basic vehicle model in conjunction with the deformation of the outer shape image. It is.
Here, the deformation of the external image of the basic vehicle model and the deformation of the basic vehicle model by the vehicle model deformation unit 44 are performed by adjusting the external dimensions of the platform components.
In other words, the influence on the existing platform due to the deformation of the basic vehicle model is absorbed by adjusting the external dimensions of the platform components.
By deforming the outer shape image of the basic vehicle model in this way, the outer shape image of the vehicle model having the desired outer shape, that is, the outer shape image of the new vehicle planning study model is displayed on the screen of the image display unit 42. .
Further, by deforming the basic vehicle model, a vehicle model having a desired outer shape, that is, a new vehicle plan study model can be obtained.

Furthermore, in the present embodiment, it is possible to set a constraint condition when the vehicle model deformation unit 44 performs deformation of the basic vehicle model outer shape image and deformation of the basic vehicle model.
The constraint conditions include the following first to third conditions.
The first condition is that when the basic vehicle model is viewed from the side, the front deck where the outer plate portion constituting the bonnet and the windshield intersect and the center point of the front wheel are predetermined relative to each other. It is a condition that the target positional relationship is set.
The second condition is that the heel point, which is the intersection of the floor and the heel when the occupant puts his or her foot on the accelerator pedal in the existing vehicle when viewed from the side, and the center point of the front wheel Is set to a predetermined relative positional relationship.
The third condition is a condition that a basic specification value (specification value) that defines the external dimensions of a vehicle model as a new vehicle planning study model is determined.
As will be described later, the basic specifications include a total length, a wheel base, a front overhang, a rear overhang, an overall height, a vehicle body width, and the like.
These three conditions are set as necessary, and whether to set the three conditions or how to select the three conditions is arbitrary.
Moreover, how to set the basic specifications in the third condition is arbitrary and may be set in advance, or may be set by changing the basic specifications as necessary.
The setting operation of the constraint condition is arbitrary, for example, performed by operating the input device 6D of the client terminal 6.

The adjustment amount determination unit 45 determines whether or not the adjustment amount of the external dimension of the platform component by the vehicle model deformation unit 44 is within a range that can be absorbed by using the existing platform component.
The determination operation is performed based on the platform component data read from the platform component DB 14 by the adjustment amount determination unit 45.

The vehicle model measuring unit 46 measures the size, area, volume, angle, etc. of a desired portion of the new vehicle planning examination model obtained by the vehicle model deforming unit 44 and outputs the measurement result as measurement data. It is.
In addition, the output form of the measurement data of the new vehicle planning examination model output from the vehicle model measurement unit 46 is displayed on the screen of the display device 6E, or printed out using a printer. Various forms are possible.

The vehicle model output unit 48 outputs data of a new vehicle plan study model obtained by the vehicle model deformation unit 44.
The model data for the new vehicle planning examination output from the vehicle model output unit 48 may be in any data format that can be used by various conventionally known application software for image processing used in, for example, CG and CAD. It is not limited.
Further, the data output form of the new vehicle plan review model data output from the vehicle model output unit 48 can be various forms known in the art such as print output using a printer.

Next, the operation of the new vehicle plan review support system 8, that is, the new vehicle plan review support method will be described with reference to the flowchart of FIG.
First, among a plurality of platform components, a fixed platform component that fixes the outer dimensions without interlocking with the deformation of the vehicle model in step S18 (vehicle model deformation step) described later, and an external shape interlocking with the deformation of the vehicle model A deformed platform component for adjusting the dimensions is set (step S10: component setting step).
That is, a fixed platform component for fixing the outer dimension and a deformed platform component for adjusting the outer dimension in conjunction with the deformation of the basic vehicle model are set.
In other words, in step S10, a deformed platform component that absorbs changes in the dimensions of the basic specifications is determined.
Hereinafter, these platform components will be described in detail.

As shown in FIG. 7, the vehicle 50 includes a platform 52, a body 54 and an outer plate 56 as vehicle components assembled to the platform 52, and front and rear wheels 58 and 60.
The platform components constituting the platform 52 include a frame 5202 constituting most of the platform 52 and a plurality of frame assembly parts assembled to the frame.
In the present embodiment, the following components among the frame assembly components are deformed platform components for adjusting the external dimensions, and these deformed platform components are hatched at a low density.
In the present embodiment, the following parts among the frame 5202 (underbody) and the frame assembly parts are deformed platform components, and these platform components are hatched at a low concentration.
Floor extension 5204, front axle 5210, front suspension arm 5212, side sill 5214, front bumper mounting part 5216, rear axle 5218, rear suspension arm 5220, rear bumper mounting part 5226.
Further, a matching portion 53 of the upper body and the platform 52 constituting a part of the body 54 is indicated by dark hatching in FIG.

The modified platform component will be described in detail.
As shown in FIG. 9A, a front bumper attachment component 5216 is attached to the front end of the frame 5202, and a front bumper 5230 is attached to the front bumper attachment component 5216.
L1 in the drawing indicates a horizontal distance between the front end of the frame 5202 and the front end of the front bumper 5230 in the front-rear direction of the vehicle.
In other words, when the front overhang C shown in FIG. 8 changes in accordance with the change in the outer shape of the vehicle, the distance L1 is adjusted by changing the outer dimension of the front bumper attachment component 5216.

As shown in FIG. 9B, the frame 5202 is divided into two parts, a front half part 5202A and a rear half part 5202B, and the front half part 5202A and the rear half part 5202B are connected via a floor extension 5204.
L2 in the drawing indicates a horizontal distance between the rear end of the front half portion 5202A and the front end of the rear half portion 5202B in the front-rear direction of the vehicle.
In other words, when the wheel base B shown in FIG. 8 changes according to the change in the outer shape of the vehicle, the distance L2 is adjusted by changing the outer dimension of the floor extension 5204.

As shown in FIG. 9C, a rear bumper attachment component 5226 is attached to the rear end of the frame 5202, and a rear bumper 5232 is attached to the rear bumper attachment component 5226.
L3 in the drawing indicates a horizontal distance between the rear end of the frame 5202 and the rear end of the rear bumper 5232 in the front-rear direction of the vehicle.
In other words, when the rear overhang D shown in FIG. 8 changes in accordance with the change in the outer shape of the vehicle, the distance L3 is adjusted by changing the outer dimensions of the rear bumper attachment component 5226.

As shown in FIG. 11A, the left and right sides of the front portion of the frame 5202 and the front wheel 58 are connected by a front axle 5210.
L4 in the figure indicates the horizontal distance between the left and right sides of the frame 5202 and the inner surface of the front wheel 58 in the vehicle width direction.
In other words, when the front tread U shown in FIG. 10 changes according to the change in the outer shape of the vehicle, the distance L4 is adjusted by changing the outer dimensions of the front axle 5210 and the front suspension arm 5212.

As shown in FIG. 11B, side sills 5214 are attached to both sides of the frame 5202.
L5 in the figure indicates the distance between the left and right sides of the frame 5202 and the inner surface of the front wheel 58 in the vehicle width direction.
In other words, when the vehicle body width W of the vehicle shown in FIGS. 10 and 12 changes in accordance with the change in the external shape of the vehicle, the distance L5 is adjusted by changing the external dimensions of the side sill 5214.

As shown in FIG. 13, the left and right sides of the rear portion of the frame 5202 and the rear wheel 60 are connected by a rear axle 5218.
L6 in the figure indicates the distance between the left and right sides of the frame 5202 and the inner surface of the rear wheel 60 in the vehicle width direction.
In other words, when the rear tread L shown in FIG. 12 changes in accordance with the change in the outer shape of the vehicle, the outer dimensions of the rear axle 5218 and the rear suspension arm 5220 change to adjust the distance L6.

Next, a constraint condition is set (step S12).
As described above, the presence / absence and combination of the first to third conditions are arbitrary.
The first to third conditions will be specifically described.
As shown in FIG. 8, the first condition is that the front deck FD, which is a portion where the outer plate 56 part constituting the bonnet and the windshield 62 intersect, with the basic vehicle model viewed from the side, the front wheels It is a condition that 58 center points P1 are set in a predetermined relative positional relationship.
As shown in FIG. 15, the second condition is that the heel point 78 is the intersection of the floor and the heel when the occupant puts his / her foot on the accelerator pedal in the existing vehicle when the basic vehicle model is viewed from the side. And the center point of the front wheel are set in a predetermined relative positional relationship.
The third condition is to determine the values of basic specifications.
As shown in FIG. 8, in this embodiment, the basic specifications are the total length A (the horizontal distance from the front bumper 5230 tip to the rear bumper 5282 rear end), the wheel base B (the center point between the front wheel 58 and the rear wheel 60). Horizontal distance), front overhang C, rear overhang D, and total height H.
As a third condition, at least some of the basic specifications are fixed and set as fixed values that are not changed. In this case, the remaining basic specifications whose values are not fixed are changed according to the deformation of the outer shape of the vehicle.

Returning to FIG. 4, the description will be continued.
Next, the basic vehicle model construction unit 40 of the client terminal 6 includes the vehicle model indicating the three-dimensional shape of the existing vehicle read from the existing vehicle 3D model DB 10 of the server 2 and the basic of the existing vehicle read from the existing vehicle 2DDB 12. A basic vehicle model is constructed based on the layout data (step S14: basic vehicle model construction step).
Then, the image display unit 42 displays an outline image of the basic vehicle model on the screen of the display device 6E based on the basic vehicle model constructed by the basic vehicle model construction unit 40 (step S16: first image display). Step).

Next, the vehicle model deforming unit 44 deforms the outline image of the basic vehicle model displayed on the screen of the display device 6E based on the operation of the user while satisfying the constraint condition set in step S12. At the same time, the basic vehicle model is deformed in conjunction with the deformation of the outline image (step S18: vehicle model deformation step).
At this time, the deformation of the basic image of the basic vehicle model and the deformation of the basic vehicle model are performed by adjusting the external dimensions of the deformed platform components. That is, the influence on the existing platform due to the deformation of the basic vehicle model is absorbed by adjusting the external dimensions of the deformed platform components.
By deforming the outer shape image of the basic vehicle model in this way, the outer shape image of the vehicle model having the desired outer shape, that is, the outer shape image of the new vehicle planning study model is displayed on the screen of the image display unit 42. .
Further, by deforming the basic vehicle model, a vehicle model having a desired outer shape, that is, a new vehicle plan study model can be obtained.
As a result, the image display unit 42 displays, on the screen of the display device 6E, the basic vehicle model deformed by the vehicle model deforming unit 44, that is, the external image of the new vehicle planning study model and the image showing the shape of the passenger compartment. (Step S20: Second image display step).

Hereinafter, the deformation | transformation operation of the external shape image of a basic vehicle model in step S18 is demonstrated concretely.
In the present embodiment, deformation of the outline image of the basic vehicle model by the user's operation is performed by operating a guide bar displayed on the screen of the display device 6E.
FIG. 5 and FIG. 6 show a case where adjustment of the wheel base is required in accordance with the deformation of the basic vehicle model.
As shown in FIG. 6, an outline image 64 of the side surface of the vehicle model is displayed on the screen, and an operation guide bar 66 is displayed above the outline image 64.
The guide bar 66 has a straight line portion 6602 extending along the front-rear direction of the vehicle model with an interval above the outer shape image 64 of the vehicle model.
The guide bar 66 is movable along first and second operation points 6604 and 6606 corresponding to the front and rear ends of the vehicle in the longitudinal direction of the vehicle, a reference point 6608 corresponding to the front deck FD, and a straight line portion 6602. And a movable reference point 6610.
The movable reference point 6610 is a point at which the location of the vehicle model outline image 64 corresponding to the movable reference point 6610 does not move on the screen when the vehicle model outline image 64 is deformed.

The user positions the mouse pointer displayed on the screen on the second operation point 6606 and maintains the clicked state, and drags the second operation point 6606 forward or backward.
Then, the vehicle model deforming unit 44 that has received this operation input moves the second operation point 6602 back and forth along the straight line portion 6602 and displays it. At this time, a portion 6612 of the straight line portion 6602 that connects the movable reference point 6610 and the second operation point 6606 is displayed in an expanded and contracted manner in conjunction with the movement of the second operation point 6602.
The vehicle model deforming unit 44 expands and contracts a portion corresponding to the portion 6612 of the straight line portion 6602 in the outline image 64 of the vehicle model following the expansion and contraction of the portion 6612 of the straight line portion 6602, thereby causing the outline image 64 to be solid and broken. It is displayed as deformed as shown in.
The outline image 64 of the basic vehicle model is displayed as a three-dimensional image shown in FIG. 5 or a two-dimensional image shown in FIG.

In this example, as shown in FIG. 20, the deformation of the basic vehicle model outer shape image 64 and the deformation of the basic vehicle model are performed by adjusting the outer dimensions of the floor extension 5204 as a deformed platform component.
As described above, the front half portion 5202 A and the rear half portion 5202 B of the frame 5202 are connected via the floor extension 5204.
Therefore, the deformation of the basic vehicle model outer shape image 64 and the deformation of the basic vehicle model are made by adjusting the outer dimensions of the floor extension 5204, in other words, the wheel base is adjusted by adjusting the outer dimensions of the floor extension 5204.

Returning to FIG. 4, the description will be continued.
Next, the adjustment amount determination unit 45 determines whether or not the adjustment amount of the external dimensions of the platform components in the vehicle model transformation step S18 is within a range that can be absorbed by using the existing platform components ( Step S22: Adjustment amount determination step).

If the determination result in step S22 is affirmative, a first display is displayed on the screen indicating that the platform component for adjusting the external dimensions is configured by an existing platform component (step S24: first). Display step).
That is, as shown in FIG. 21, in the first display, the outer shape image of the floor extension 5204 is superimposed on the outer shape image 64 of the deformed basic vehicle model and displayed on the screen. In this state, the external image of the floor extension 5204 is displayed in a first display color different from the color for displaying the external image 64 of the deformed basic vehicle model, for example, blue. In FIG. 21, the first display color is displayed by hatching with a plurality of parallel straight lines.

If the determination result in step S22 is negative, a second display is displayed on the screen indicating that the platform component for adjusting the external dimensions is composed of a newly manufactured platform component (step S26). : Second display step).
That is, as shown in FIG. 22, in the second display, the outer shape image of the floor extension 5204 is superimposed on the outer shape image 64 of the deformed basic vehicle model and displayed on the screen. In such a state, the external image of the floor extension 5204 is displayed in a second display color different from the first display color blue, for example, red. In FIG. 22, the second display color is displayed by hatching with straight lines intersecting each other.
In this way, the platform component that adjusts the external dimensions according to whether or not the adjustment amount of the external dimensions of the platform components is within the range that can be absorbed by using the existing platform components (this example Then, the display color of the floor extension 5204) changes to the first display color and the second display color.

The user visually recognizes the outline image 64 on the screen and determines whether or not to end the deformation operation (step S28). If the desired outer shape image 64 is not obtained, the process returns to step S18 to perform the deformation operation.
If the desired outer shape image 64 is obtained, the user ends the deformation operation and performs the measurement operation.
That is, the vehicle model measurement unit 46 measures each part of the new vehicle plan review model according to the measurement operation of the user, and outputs measurement data of the new vehicle plan review model as a measurement result (step S30: vehicle model). Measurement step).
A measurement operation will be described.
As shown in FIGS. 14 to 19, an external image 64 of the new vehicle planning examination model and an image 66 showing the shape of the vehicle interior are displayed on the screen of the display device 6E.

More specifically, as shown in FIGS. 14 and 15, the engine outline 68, the muffler and fuel tank outline 69, the center lines 70 and 72 of the front wheels 58 and the rear wheels 60, and the interior (headline) An outline 74 indicating the inner surface and a ground line GL are displayed.
As shown in FIGS. 14 and 15, the first row seat 68A, the second row seat 68B, and the third row seat 68C are displayed side by side from the front to the rear in the vehicle front-rear direction.
The passengers M1, M2, and M3 seated on the first row seat 68A, the second row seat 68B, and the third row seat 68C are displayed.
In the measurement of each part, as in the case of the above-described image deformation operation, an operation index such as a cursor or a pointer displayed on the screen of the display device 60E by using a pointing device such as a mouse as the input device 6D. It is done by operating.
For example, a measurement position as a starting point is determined by clicking with an operation index such as a cursor or a pointer positioned on the outline image of the new vehicle planning study model.
Then, after dragging the operation indicators such as the cursor and the pointer to the measurement position as the end point, click again.
By operating in this way, the dimension from the start point to the end point is measured.
Such an operation for measuring an arbitrary portion of the image on the screen is the same as the operation when using various conventionally known application software for image processing used in CG, CAD, and the like.

As shown in FIGS. 15, 16, and 17, the parts to be measured include the above-described total length A, wheel base B, front overhang C, rear overhang D, total height H, front tread K, rear tread L, vehicle body In addition to width M, there are dimensions for each part below.
Hip point width E1 of the first row seat 68A and the second row seat 68B,
Hip point width E2 of the second row seat 68B and the third row seat 68C,
Hip point height F of the first row seat 68A from the floor,
Hip point height G1 of the second row seat 68B from the floor,
Hip point height G2 of the third row seat 68C from the floor,
First row seat headroom I, which is a dimension from the hip point of the first row seat 68A to the head lining of the interior,
The second row seat headroom J1, which is the dimension from the hip point of the second row seat 68B to the head lining of the interior,
Third row seat headroom J2, which is the dimension from the hip point of the third row seat 68C to the head lining of the interior,
Shoulder room N of the first row seat 68A,
Hip point width O of the first row seat 68A.
Here, the hip point refers to the center of the waist of the occupant seated on the seat.
Further, the first row seat headroom I, the second row seat headroom J1, and the third row seat headroom J2 specify and measure the angle formed by the occupant's torso seated on the seat with respect to the vertical line.
Further, as shown in FIG. 15, the parts to be measured further include an approach angle θ1, a ramp breakover angle θ2, a departure angle θ3, and a minimum ground height HL (muffler part height).

  In addition, as shown in FIG. 19, the wheel cut portion of the outer plate 56 has a front wheel 58, a rear wheel 60, and an outer shape corresponding to the wheel cut portion of the upper body used as a basic vehicle model in a side view of the vehicle. Hold the interval.

Returning to FIG. 4, the description will be continued.
Next, the vehicle model output unit 48 outputs the new vehicle plan consideration model data obtained by the vehicle model deformation unit 44 (step S32: vehicle model output step).

  As described above, the measurement data of the new vehicle planning examination model output from the vehicle model measurement unit 46 and the new vehicle planning examination model data output from the vehicle model output unit 48 are displayed on the screen of the display device. Alternatively, it is displayed as a print screen for evaluation.

According to the present embodiment, the influence on the existing platform due to the deformation of the basic vehicle model is absorbed by adjusting the external dimensions of the platform components, and the adjustment amount of the external dimensions of the platform components is the existing platform components. It was made to judge whether it was in the range which can be absorbed by using.
Depending on the determination result, the platform component that adjusts the external dimension is configured with an existing platform component, or the platform component that adjusts the external dimension is configured with a newly manufactured platform component. Displayed what will be done.
Therefore, in constructing a vehicle model for studying new vehicle planning, it is advantageous for easily and surely grasping how much a platform constituting an existing vehicle can be shared.
In addition, it is possible to immediately grasp whether an existing platform component is sufficient or a new platform component needs to be produced in response to the deformation operation of the external image of the vehicle model.
Therefore, it is advantageous in efficiently constructing a new vehicle plan study model while taking into consideration the cost and period required for the development, design and manufacture of a new vehicle.

In the present embodiment, among the plurality of platform components, a fixed platform component that fixes the outer dimension and a deformed platform component that adjusts the outer dimension in conjunction with the deformation of the basic vehicle model are set. I made it.
Therefore, by setting fixed platform components, the types of existing platform components to be used can be reduced.

In the present embodiment, as a constraint condition, the front deck FD and the center point of the front wheel 58 are set in a predetermined relative positional relationship in a state where the basic vehicle model is viewed from the side. Including the first condition.
In the case of an FF vehicle, changing the relative positional relationship between the front deck FD and the center point of the front wheel 58 affects the engine room and the indoor space.
Then, it is necessary to redo the technical examination of the engine room and the vehicle compartment space, and there is a disadvantage that the design man-hour is required.

  Further, in the present embodiment, the constraint condition is a state where the basic vehicle model is viewed from the side, and the heel point that is the intersection of the floor and the heel when the occupant puts his / her foot on the accelerator pedal in the existing vehicle, A second condition is included in which the center point of the front wheel is set to a predetermined relative positional relationship.

Further, in the present embodiment, the constraint condition includes a third condition in which a value of a basic specification that defines the outer dimension of a vehicle model as a new vehicle planning study model, that is, a specification value is determined.
Defining the specification value is to set a fixed value that does not change the values of at least some of the basic specifications. In this case, the remaining specification values whose specification values are not fixed are changed according to the deformation of the outer shape of the vehicle.
For example, if the wheel base B is a fixed value, the length in the front-rear direction of the passenger compartment space is fixed, so that the possibility of using existing interior parts is increased.
On the other hand, if the wheel base B can be changed, it is necessary to newly design an interior part in accordance with a change in the length of the vehicle interior space in the front-rear direction, which causes an increase in design cost and manufacturing cost.
In this way, a new vehicle planning study model can be constructed by satisfying the third condition of determining specification values and deforming the outer shape of the basic vehicle model.

  In the present embodiment, the vehicle model measurement step measures each part of the new vehicle planning study model and outputs the measurement data of the new vehicle planning study model as a measurement result. Therefore, it is advantageous in efficiently performing verification and evaluation of the specification values or performance necessary for the performance.

In the present embodiment, the case where the platform component for adjusting the outer dimensions is the floor extension 5204 has been described.
However, the platform components for adjusting the external dimensions are conventionally known, for example, the front axle 5210, the front suspension arm 5212, the side sill 5214, the front bumper attachment part 5216, the rear axle 5218, the rear suspension arm 5220, and the rear bumper attachment part 5226. Various platform components can also be implemented.

  In the present embodiment, the case where the vehicle is a passenger car has been described. However, the vehicle to which the method of the present invention is applied is not limited to a passenger car, and can be applied to various conventionally known work vehicles and building vehicles. is there.

  64... Outline image, 5204... Rear floor extension, S14... Basic vehicle model construction step, S16... First image display step, S18. ... adjustment amount determination step, S24 ... first display step, S26 ... second display step.

Claims (6)

By displaying a vehicle model as a new vehicle plan review model on the screen of the display device using a personal computer including a display device, an input device and a storage device storing a new vehicle plan review support program A new vehicle planning and examination support method for supporting the planning and examination of new vehicles,
By accepting an input operation from an operator, the personal computer constructs a vehicle model configured by assembling a plurality of vehicle components on an existing platform including a plurality of existing platform components as a basic vehicle model. Basic vehicle model construction step,
A first image display step in which the personal computer displays an outline image of the basic vehicle model on the screen based on the basic vehicle model by receiving an input operation from an operator;
By accepting an input operation from the operator, the personal computer deforms the outline image of the basic vehicle model displayed on the screen based on the operation of the user and interlocks with the deformation of the outline image. By deforming the basic vehicle model and receiving an input operation from an operator, the personal computer adjusts the external dimensions of the platform components to influence the existing platform due to the deformation of the basic vehicle model. Vehicle model deformation step to be absorbed by,
A second image display step in which the personal computer displays an outer shape image of the deformed basic vehicle model on the screen by receiving an input operation from an operator;
The personal computer by receiving an input operation from the operator, or the adjustment amount of external dimension of the platform component according to the vehicle model deformation step is the absorbable range by using the existing platform component An adjustment amount determination step for determining whether or not,
When the personal computer accepts an input operation from the operator and the determination result of the adjustment amount determination step is affirmative, the platform component that adjusts the outer dimensions is configured by an existing platform component. A first display step of performing on the screen a first display indicating that;
When the personal computer accepts an input operation from the operator, the platform component for adjusting the outer dimensions is newly produced when the determination result of the adjustment amount determination step is negative. A second display step of performing a second display on the screen indicating that the screen is configured,
The first display in the first display step is a state in which an external image of a platform component for adjusting the external dimensions is superimposed on an external image of the deformed basic vehicle model and displayed on the screen. A display that displays an external image of a platform component for adjusting the external dimensions in a first display color different from a color for displaying the external image of the deformed basic vehicle model;
In the second display in the second display step, the external image of the platform component that adjusts the external dimensions is displayed on the screen while being superimposed on the external image of the deformed basic vehicle model. It is a display that displays an external image of a platform component that adjusts external dimensions in a second display color different from the first display color.
New vehicle planning study support method. By receiving an input operation from an operator, the personal computer , prior to the vehicle model deformation step, of the plurality of platform components, a fixed platform component that fixes an outer dimension thereof, and the basic vehicle model A component setting step for setting a deformed platform component that adjusts the external dimensions in conjunction with the deformation;
The new vehicle plan examination support method according to claim 1. The deformation of the image of the basic vehicle model and the deformation of the basic vehicle model in the vehicle model deformation step are performed in a state where a constraint condition is satisfied,
The constraint condition is that the basic vehicle model is viewed from the side, and the front deck, which is a portion where the outer plate portion constituting the bonnet and the windshield intersect, and the center point of the front wheel are predetermined relative to each other. Including a first condition that is set to a target positional relationship,
The new vehicle plan examination support method according to claim 1 or 2. The deformation of the image of the basic vehicle model and the deformation of the basic vehicle model in the vehicle model deformation step are performed in a state where a constraint condition is satisfied,
The constraint condition is that when the basic vehicle model is viewed from the side, the heel point that is the intersection of the floor and the heel when the occupant puts his / her foot on the accelerator pedal in the existing vehicle, and the center point of the front wheel Including a second condition that is set to a predetermined relative positional relationship,
The new vehicle plan examination support method according to any one of claims 1 to 3. The deformation of the image of the basic vehicle model and the deformation of the basic vehicle model in the vehicle model deformation step are performed in a state where a constraint condition is satisfied,
The constraint condition includes a third condition that defines a value of a basic specification that defines an external dimension of a vehicle model as the new vehicle plan review model.
The new vehicle plan examination support method according to any one of claims 1 to 4. Upon receiving an input operation from an operator, the personal computer measures the size, area, volume, or angle of the new vehicle planning study model obtained by the vehicle model transformation step, and the measurement result Further including a vehicle model measurement step for outputting as measurement data,
The new vehicle plan examination support method according to any one of claims 1 to 5.

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