WO2018110113A1 - Vehicle travel testing system, program for vehicle travel testing system, and method for displaying vehicle speed pattern - Google Patents

Abstract

In order to improve measuring accuracy without making driving along a vehicle speed pattern more difficult, this vehicle travel testing system 100 is provided with a display control device 8 that displays, on a display 22, a vehicle speed pattern B in which a vehicle speed fluctuates in response to a travel time and a travel distance, wherein the display control device 8 is configured to display a travel road surface R that extends in a predetermined direction on the display 22 such that a gradient can be recognized, and to display the vehicle speed pattern B overlapping the travel road surface R, where the width direction of the travel road surface R represents the vehicle speed, and the advancing direction of the vehicle on the travel road surface R represents the travel time or the travel distance.

Description

Vehicle running test system, vehicle running test system program, and vehicle speed pattern display method

The present invention relates to a vehicle running test system, a vehicle running test system program, and a vehicle speed pattern display method.

A vehicle running test performed by simulating running on an actual road on a test bench such as a chassis dynamo, as shown in Patent Document 1, displays a predetermined vehicle speed pattern on the display to assist the driving of the test driver. While being done.

As specific display contents in Patent Document 1, the horizontal axis represents the travel distance, the vertical axis represents the vehicle speed, and the vehicle speed pattern is displayed on the lower stage of the display. The topographic information with the vertical axis as the road surface height is displayed. This allows the test driver to drive with a sense of reality while grasping the terrain information.

Further, as another display content in Patent Document 1, the above vehicle speed pattern is displayed on a graph in which the horizontal axis represents the travel distance and the vertical axis represents the vehicle speed, and the test vehicle at the local point is displayed on this graph. The vehicle speed is displayed with a marker imitating the shape of the vehicle. The marker is displayed in an inclined manner according to the road surface gradient so that the test driver can drive while grasping the road surface gradient information.

However, in the former display mode, the vehicle speed pattern and the terrain information are displayed at different positions. Therefore, when the terrain information is to be confirmed, the line of sight moves away from the vehicle speed pattern, and driving along the vehicle speed pattern is performed. It becomes more difficult than before.
Further, in the latter display mode, only the gradient information of the road surface at the local point can be grasped, and it is not possible to grasp the gradient of the road surface to be traveled from now on. As a result, the driving sensation on the test bench differs from the driving sensation on the actual road, and driving on the actual road cannot be accurately reproduced on the test bench. For example, vehicle performance such as fuel consumption measurement is measured with high accuracy. I can't.

JP-A-11-160204

Therefore, the present invention has been made to solve the above-described problems all at once, and its main object is to improve measurement accuracy without making it difficult to drive along the vehicle speed pattern.

That is, the vehicle travel test system according to the present invention is a vehicle travel test system including a display control device that displays on a display a vehicle speed pattern in which the vehicle speed fluctuates according to travel time or travel distance. Is displayed on the display so that the gradient can be recognized on the traveling road surface extending in a predetermined direction, the width direction of the traveling road surface is a vehicle speed, and the traveling direction of the vehicle on the traveling road surface is a traveling time or a traveling distance. The vehicle speed pattern is displayed so as to overlap the travel road surface.

In such a vehicle traveling test system, the traveling road surface extending in a predetermined direction is displayed on the display so that the gradient can be visually recognized, the width direction of the traveling road surface is the vehicle speed, and the traveling direction of the vehicle on the traveling road surface is displayed. As the travel time or travel distance, the vehicle speed pattern is displayed superimposed on the travel road surface, so that the slope of the road surface to be traveled can be grasped while viewing the vehicle speed pattern. Thereby, the driving on the actual road can be accurately reproduced without making the driving along the vehicle speed pattern difficult as compared with the conventional one, and the measurement accuracy can be improved.

In order to make it easy to see the vehicle speed pattern while grasping the gradient, it is preferable that the display device displays the gradient in the traveling time or traveling distance at a local point and the vehicle speed pattern in an overlapping manner.

It is preferable that the display control device displays an allowable width set for the vehicle speed pattern so as to overlap the traveling road surface.
With such a configuration, it is possible to drive the vehicle speed within an allowable range while grasping the gradient of the road surface.

In order to easily recognize the gradient of the traveling road surface, it is preferable that the display control device displays a plurality of second auxiliary lines extending along the width direction of the traveling road surface so as to overlap the traveling road surface.

As a more specific embodiment, there is an embodiment in which the interval between the second auxiliary lines adjacent to each other changes according to the gradient of the traveling road surface.

Further, in order to make it easier to recognize the gradient of the traveling road surface, it is preferable that the display control device displays a plurality of first auxiliary lines extending along the extending direction of the traveling road surface so as to overlap the traveling road surface.

It is preferable that the display control device displays the plurality of first auxiliary lines at equal intervals along the width direction of the traveling road surface, and the first auxiliary lines indicate vehicle speeds at equal intervals. .
With such a display mode, it is possible to easily recognize not only the gradient of the traveling road surface but also the vehicle speed indicated by the vehicle speed pattern.

In order to make it closer to a driving sensation on an actual road, the display control device displays a boundary line indicating an end in the width direction of the traveling road surface, and the traveling road surface is represented by a perspective method by the boundary line. It is preferable.

In order to make it easy to recognize the gradient of the traveling road surface, the angle formed by the tangent line between the pair of reference straight lines indicating both ends in the width direction of the flat surface extending in the predetermined direction and the boundary line is large. It is preferable that the smaller the display is, the smaller the gradient of the traveling road surface is.

As a more specific display mode, when the traveling road surface has an upward slope, the boundary line indicating the traveling road surface extends in a direction away from the reference straight line, and the traveling road surface has a downward slope. Further, when the boundary line indicating the traveling road surface extends in a direction approaching the reference straight line and the traveling road surface is flat, the boundary line indicating the traveling road surface extends in parallel with the reference straight line. A display mode is mentioned.

In order to make it easy to recognize the vehicle speed at the local point of the test vehicle, the display control device calculates the actual vehicle speed at the present time of the test vehicle traveling along the vehicle speed pattern on the traveling road surface. It is preferable to display while moving in the width direction.

As a specific embodiment of the vehicle running test system, there is a configuration further including a chassis dynamo on which the test vehicle is mounted and an exhaust gas measuring device that measures exhaust gas of the test vehicle.

The vehicle running test system program according to the present invention is a program used for a vehicle running test system including a display control device that displays a vehicle speed pattern in which a vehicle speed varies according to a running time or a running distance on a display. The display control device displays a traveling road surface extending in a predetermined direction on the display so that a gradient can be recognized, and the width direction of the traveling road surface is a vehicle speed, and the traveling direction of the vehicle on the traveling road surface Is a travel time or a travel distance, and the vehicle speed pattern is displayed overlaid on the travel road surface.

Furthermore, the vehicle speed pattern display method according to the present invention is a method for displaying on a display a vehicle speed pattern in which the vehicle speed fluctuates in accordance with a travel time or a travel distance, and travels in a predetermined direction on the display The road surface is displayed so that the gradient can be recognized, and the vehicle speed pattern is superimposed on the road surface, with the width direction of the road surface being the vehicle speed and the traveling direction of the vehicle on the road surface being the travel time or distance. It is the method characterized by doing.

Such a vehicle running test system program and vehicle speed pattern display method can provide the same effects as the vehicle running test system described above.

According to the present invention configured as described above, it is possible to improve the measurement accuracy without making the driving along the vehicle speed pattern difficult.

The schematic diagram which shows the whole structure of the vehicle running test system of this embodiment. The functional block diagram which shows the function with which the vehicle running test system of this embodiment is provided. The figure explaining the display content by the display control apparatus of this embodiment. The figure explaining the display content by the display device control apparatus in deformation | transformation embodiment. The figure explaining the display content by the display device control apparatus in deformation | transformation embodiment. The figure explaining the display content by the display device control apparatus in deformation | transformation embodiment. The figure explaining the display content by the display device control apparatus in deformation | transformation embodiment. The figure explaining the display content by the display device control apparatus in deformation | transformation embodiment.

A vehicle running test system 100 according to the present embodiment is for performing a running test on a test vehicle V in a room called a cell at a predetermined vehicle speed pattern and performing exhaust gas analysis, fuel consumption measurement, and the like at that time. As shown in FIG. 1, a chassis dynamo device 1, an exhaust gas measurement device 3, a measurement management device 4, a vehicle speed pattern display device 2 and the like are provided.

The chassis dynamo device 1 is, for example, a single-shaft type, and a dynamo body 1b having a rotating drum 11 and the like on which a driving wheel of the test vehicle V is mounted, and the traveling load similar to that on the road on the test vehicle V by controlling the rotating drum 11 And a dynamo control device 1a for providing The dynamo control device 1a is configured by using a computer system including, for example, a CPU, a memory, and the like, and has a function capable of communicating control signals, data, and the like with each other. Although FIG. 1 shows the one for 2WD and FF vehicles, it is of course possible to have a pair of rotating drums 11 at the front and rear so as to be compatible with 4WD, or it may be a two-shaft type. Needless to say.

The exhaust gas measuring device 3 is equipped with a plurality of gas analyzers having different measurement principles, and can continuously measure each component such as HC, NO _x , CO, and CO ₂ contained in the engine exhaust gas separately. Is. In the present embodiment, CO, HC, NO, etc. per unit mileage are combined with the exhaust gas constant volume sampling device 5 that samples exhaust gas diluted in the atmosphere and samples the diluted exhaust gas as a sample gas at a constant volume. It is configured to be able to measure the weight. The exhaust gas measuring device 3 includes a computer system configured using a CPU, a memory, and the like, and has a function of mutually communicating control signals, data, and the like with the outside.

The measurement management device 4 is a computer system including, for example, a main body unit including a CPU, a memory, a communication port, and a console including a display and input means. Data is exchanged between the dynamo control device 1a and the exhaust gas measurement device 3 via a network NT such as a LAN, and the dynamo control device 1a, the exhaust gas measurement device 3 or other equipment (vehicle cooling fan 6). The vehicle information acquisition device 7, the exhaust gas suction blower 51, the indoor air conditioning, etc.) can be integratedly controlled and data can be acquired.

Further, the measurement management device 4 here functions as a display control device 8 that exchanges data with the vehicle speed pattern display device 2 via a network NT such as a LAN and controls the vehicle speed pattern display device 2. It also has. A specific function as the display control device 8 will be described later.

As shown in FIG. 2, the vehicle speed pattern display device 2 includes a main body 21 having a CPU and a memory, a display 22 installed inside and outside the test vehicle V, for example, in the vicinity of the front window so that the driver can visually recognize, and an input. Means 23 are provided to assist the driver when driving the test vehicle V. Here, the input means 23 is, for example, a touch panel or a remote controller integrally attached to the display 22.

The display control device 8 cooperates the CPU and peripheral devices in accordance with a predetermined program stored in a predetermined area of the memory, so that the vehicle speed pattern storage unit 81, the traveling road surface information storage are performed as shown in FIG. The function as the part 82, the display image creation part 83, and the control part 84 is provided.

The vehicle speed pattern storage unit 81 stores a vehicle speed pattern in which the vehicle speed fluctuates according to the travel time or the travel distance. Here, the vehicle speed pattern storage unit 81 stores a plurality of types of vehicle speed patterns defined by laws and regulations, for example. ing.
FIG. 3 shows an example of the vehicle speed pattern B that is set so that the vehicle speed changes irregularly along the travel distance. Further, the vehicle speed pattern storage unit 81 stores an upper limit speed pattern H and a lower limit speed pattern L indicating an allowable width (tolerance) set for each vehicle speed pattern B together with each vehicle speed pattern B. .
Note that the user can newly register each speed pattern B, H, and L, or change the registered one using the input means attached to the measurement management device 4, for example.

The traveling road surface information storage unit 82 stores information on a simulated traveling road surface on which the test vehicle V travels (hereinafter referred to as traveling road surface information). Here, the traveling distance and the height of the traveling road surface at the traveling distance are stored. A plurality of types are stored as the traveling road surface information.
Note that the user can newly register the traveling road surface information or change the registered information by using, for example, an input unit attached to the measurement management device 4.

The display image creation unit 83 acquires the vehicle speed pattern stored in the vehicle speed pattern storage unit 81 and the traveling road surface information stored in the traveling road surface information storage unit 82, and uses them to display the vehicle speed pattern. Display image data to be displayed on the display 22 of the apparatus 2 (hereinafter referred to as display image data) is created.
Here, for example, the user can select a desired vehicle speed pattern and desired traveling road surface information using the input means attached to the measurement management device 4, and the display image creation unit 83 selects the selected vehicle speed. Based on the pattern and the traveling road surface information, as shown in FIG. 3, a display image in which the vehicle speed pattern B is superimposed on the traveling road surface R is created as display image data.

The display image will be described. Here, the traveling road surface R that appears to extend from the front to the back on the display 22 is displayed so that the gradient can be recognized. Specifically, the traveling road surface R is represented as a region sandwiched between a pair of boundary lines X1 indicating both ends in the width direction of the traveling road surface R, and the pair of boundary lines X1 extends from the bottom to the top of the display 22. Or a line segment composed of a continuous curve and a straight line from the bottom to the top of the display 22.
In the present embodiment, the distance between the pair of boundary lines X1, that is, the width dimension of the traveling road surface R is gradually narrowed from the bottom to the top of the display 22 to represent the traveling road surface R using a perspective method. The shape of the pair of boundary lines X1 is calculated and displayed based on the traveling road surface information so that the height of the traveling road surface R changes according to the traveling distance.

Here, a plurality of first auxiliary lines Y1 (hereinafter referred to as auxiliary horizontal lines Y1) parallel to the width direction of the traveling road surface R are superimposed on the traveling road surface R, and the interval between the auxiliary horizontal lines Y1 adjacent to each other is displayed. It is changed according to the gradient of the road surface R. Specifically, when the traveling road surface R has an ascending slope, the smaller the gradient, the smaller the interval between the auxiliary horizontal lines Y1, and the larger the gradient, the larger the interval between the auxiliary horizontal lines Y1. On the other hand, when the traveling road surface R has a downward gradient, the smaller the gradient, the larger the interval between the auxiliary horizontal lines Y1, and the larger the gradient, the smaller the interval between the auxiliary horizontal lines Y1.

Further, the display 22 displays a reference straight line X2 indicating both ends in the width direction of the flat surface along the extending direction of the traveling road surface R. This reference straight line X2 is a straight line that gradually narrows from the bottom to the top of the display 22, so that the flat surface, which is the region sandwiched between the reference straight lines X2, is projected from the front to the back on the display 22 by perspective. It is displayed so that it may extend toward it.
Here, the center line of the pair of boundary lines X1 and the center line of the pair of reference straight lines X2 are made to coincide with each other, and these center lines are made to coincide with the center line in the horizontal direction of the display 22.
The reference straight line X2 is not necessarily displayed.

In the present embodiment, the slope of the traveling road surface R can be visually recognized by comparing the reference straight line X2 and the boundary line X1, and for example, the tangential direction of the boundary line X1 and the extending direction of the reference straight line X2 are formed. The angle is changed in accordance with the degree of inclination (inclination angle) of the traveling road surface R.
Specifically, the greater the gradient of the traveling road surface R, the larger the angle formed, and the smaller the gradient of the traveling road surface R, the smaller the angle formed.

Further, depending on the relative extending direction of the boundary line X1 with respect to the reference straight line X2, it is possible to visually recognize whether the traveling road surface R is ascending, descending, or flat.
Specifically, when the traveling road surface R has an upward slope, the boundary line X1 extends in a direction away from the reference straight line X2, and when the traveling road surface R has a downward slope, the boundary line X1 approaches the reference straight line X2. Extend. Further, when the traveling road surface R is flat, the boundary line X1 extends in parallel with the reference straight line X2.
In other words, as shown in FIG. 3, the angle θ1 formed by the horizontal axis (vehicle speed axis) parallel to the width direction of the road surface R and the boundary line X1 and the angle θ2 formed by the horizontal axis and the reference line are set. When the traveling road surface R has an upward slope, θ1-θ2 is positive, when the traveling road surface R is a downward slope, θ1-θ2 is negative, and when the traveling road surface R is flat, θ1-θ2 is 0. It becomes.

The display image creating unit 83 sets the vehicle speed pattern B on the traveling road surface R, with the width direction of the traveling road surface R as the vehicle speed and the traveling direction of the vehicle on the traveling road surface R (the direction in which the traveling road surface R extends) as the traveling distance. Display image data is created so that it can be seen superimposed. That is, the vehicle speed pattern B and the traveling road surface R are both displayed with the traveling distance in the direction from the bottom to the top of the display.
Here, the gradient in the travel distance at the local point and the vehicle speed pattern B are displayed so as to overlap each other. Specifically, when the travel speed pattern B and the travel road surface R are displayed on the display, The gradient at the traveling position of the vehicle and the vehicle speed pattern B are overlapped.

Specifically, the plan view shape of the vehicle speed pattern B represented as the vehicle speed in the left-right direction of the display 22 and the travel distance in the vertical direction is deformed along the height of the travel road surface R according to the travel distance, The vehicle speed pattern B after the deformation is superimposed on the traveling road surface R.
Accordingly, the vehicle speed pattern B is displayed on the traveling road surface R while being raised and lowered along the gradient of the traveling road surface R.
The display image creation unit 83 creates the display image data so that the upper limit speed pattern H and the lower limit speed pattern L indicating the allowable width (tolerance) can be seen superimposed on the traveling road surface R as in the case of the vehicle speed pattern B. is doing.

Here, a plurality of second auxiliary Y2 (hereinafter referred to as auxiliary vertical lines Y2) that are equally spaced along the width direction of the traveling road surface R are superimposed on the traveling road surface R, and each auxiliary vertical line Y2 is equally spaced. The vehicle speed set in is shown.
Further, like the boundary line X1, the auxiliary vertical line Y2 has a larger angle between the reference straight line X2 and the auxiliary vertical line Y2 as the gradient of the traveling road surface is larger, and the smaller the gradient of the traveling road surface is as a reference. The angle formed between the straight line X2 and the auxiliary vertical line Y2 is displayed so as to be small.
That is, the auxiliary vertical line Y2 indicates the vehicle speed and makes it possible to recognize the gradient of the traveling road surface R.

The control unit 84 controls the display image (display content) displayed on the display 22, acquires the image data created by the display image creation unit 83 described above, and outputs it to the vehicle speed pattern display device 2. The display image described above is displayed on the display 22.

The controller 84 sequentially outputs the image data to the main body 21 of the vehicle speed pattern display device 2 so that the display image scrolls in synchronization with the driving of the test vehicle V by the driver. Here, the upper side of the display 22 is the future side, and the traveling road surface R scrolls from the top to the bottom of the display 22. Furthermore, this control part 84 displays a display image so that the angle over which the traveling road surface R looks down changed according to the height of the traveling road surface R in the travel distance at a local point. As a result, the traveling road surface R is displayed in a manner that is visible at a certain height from the traveling road surface R at the local point (for example, how it is viewed from the viewpoint of the driver) while scrolling from top to bottom.

The control unit 84 of the present embodiment calculates the scroll speed based on the actual vehicle speed of the test vehicle V at the local point. The actual vehicle speed is obtained by acquiring the dynamo roller speed from the chassis dynamo device 1 and converting it to the vehicle speed, and the control unit 84 sets the marker P indicating the actual vehicle speed along the width direction of the traveling road surface R. To display while moving. Note that the actual vehicle speed may be obtained from the number of rotations of the wheels of the test vehicle V.

According to the vehicle traveling test system 100 according to the present embodiment configured as described above, the traveling road surface R that appears to extend from the front to the back on the display 22 is displayed so that the gradient can be visually recognized, and the traveling road surface R is displayed on the traveling road surface R. Since the vehicle speed pattern B is displayed in an overlapping manner, the driver can grasp the gradient of the traveling road surface R to be traveled while looking at the vehicle speed pattern B. This makes it possible to drive with a sense of presence without making driving along the vehicle speed pattern B difficult compared to the conventional case.

In addition, since the reference straight line X2, the auxiliary horizontal line Y1, and the auxiliary vertical line Y2 are displayed together with the traveling road surface R, the gradient of the traveling road surface R can be more easily recognized.

Furthermore, since the auxiliary vertical line Y2 is displayed together with the traveling road surface R, the vehicle speed and the actual vehicle speed indicated by the vehicle speed pattern B can be easily recognized.

The present invention is not limited to the above embodiment.

For example, as shown in FIGS. 4A to 4C, the auxiliary horizontal line Y1 and the auxiliary vertical line Y2 do not have to be displayed on the displayed traveling road surface.
In the embodiment, the pair of boundary lines X1 is a curved line or a line segment composed of a continuous straight line and a curved line. However, as shown in FIG. 4D, one of the boundary lines X1 of the embodiment is used. May be a straight line.

Furthermore, the traveling road surface R is displayed from the bottom to the top of the display 22 so as to extend from the front to the back on the display 22 in the embodiment, but as shown in FIGS. It may be displayed so as to extend in the left-right direction of the display 22, or may be displayed so as to extend in an oblique direction (diagonal direction) of the display 22 although not shown.

More specifically, a mode in which the traveling road surface R is displayed by the pair of boundary lines X1, the first auxiliary line Y1, and the second auxiliary line Y2 (FIG. 5), or one boundary indicating one end in the width direction of the traveling road surface. A mode in which the travel road surface R is displayed by the line X1 (FIG. 6), a mode in which the travel road surface R is displayed without using the first auxiliary line Y1 (FIG. 7), or a travel road surface R without using the second auxiliary line Y2. And the like (FIG. 8).

When the traveling road surface R is displayed using the second auxiliary line Y2, the display control device 8 displays a scale S such as a vehicle speed value or a scale indicated by the second auxiliary line Y2, as shown in FIG. 22 may be displayed. In this case, the value and scale of the scale S may be scrolled up and down according to the vehicle speed of the test vehicle. When the value of the scale S and scale are fixed, the vehicle speed pattern according to the vehicle speed of the test vehicle. B and allowable width (tolerance) may be moved up and down.

Further, when the display modes of FIGS. 5 to 8 are used, for example, when the ascending slope continues for a while, the boundary line X1 continues to move above the display 22 and the traveling road surface R disappears from the display 22 There is a risk.
Therefore, it is preferable that the display control device 8 displays the traveling road surface R while moving it up and down on the display 22 according to the height of the traveling road surface R. Specifically, when the position of the vehicle increases on an upward slope. Scrolls the traveling road surface R downward, and when the position of the vehicle is lowered on a downward slope, the traveling road surface R can be scrolled upward.

In order to make it easier to recognize the gradient of the traveling road surface R, the traveling road surface R may be provided with, for example, color shading, clearness, or a pattern.

In addition, in the above-described embodiment, the vehicle speed pattern B is described as the vehicle speed changing according to the travel distance. However, the vehicle speed pattern B may be changed according to the travel time.
In this case, the direction in which the traveling road surface R extends is preferably set as the traveling time, and the scroll speed of the display image is preferably a constant speed.

In addition, in the above-described embodiment, the travel road surface information is obtained by combining the travel distance and the height of the travel road surface at the travel distance, but the travel distance and the inclination angle (gradient) of the travel road surface at the travel distance are associated. Things may be used as road surface information.

Moreover, in the said embodiment, after producing the display image which overlap | superposed the driving | running | working road surface R and the vehicle speed pattern B, the display image was displayed on the display 22, For example, the driving | running road surface R is first displayed on the display 22. Then, the vehicle speed pattern B may be superimposed and displayed on the displayed traveling road surface R.
In this case, the function as the display image creation unit 83 in the embodiment can be made unnecessary.

Furthermore, in the said embodiment, although the function as the vehicle speed pattern memory | storage part 81, the driving | running | working road surface information storage part 82, the display image preparation part 83, and the control part 84 was provided in the display control apparatus 8, these functions were provided. For example, the vehicle speed pattern display device 2 may be partially or entirely equipped.
In the above-described embodiment, the measurement management device 4 has been described as having the function as the display control device 8. However, the display control device 8 may be a computer or server other than the measurement management device 4.

In the above-described embodiment, the case where the vehicle travel test system 100 is used for the performance test of a completed vehicle has been described. However, the vehicle travel test system according to the present invention is a performance of a part of a vehicle such as an engine or a drive train (powertrain). You may use for a test etc.

In addition, it goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 100 ... Vehicle travel test system 2 ... Vehicle speed pattern display apparatus 8 ... Display control apparatus R ... Travel road surface X1 ... Boundary line X2 ... Reference straight line B ... Vehicle speed pattern Y1 ... Auxiliary horizontal line Y2 ... Auxiliary vertical line

Claims (14)

A vehicle running test system comprising a display control device for displaying a vehicle speed pattern in which a vehicle speed varies depending on a running time or a running distance on a display,
The display control device
While displaying the traveling road surface extending in a predetermined direction on the display so that the gradient can be recognized,
A vehicle travel test system that displays the vehicle speed pattern superimposed on the travel road surface, where the width direction of the travel road surface is a vehicle speed and the traveling direction of the vehicle on the travel road surface is a travel time or travel distance. The vehicle travel test system according to claim 1, wherein the display control device displays the gradient and the vehicle speed pattern in a travel time or travel distance at a local point in an overlapping manner. The vehicle travel test system according to claim 1 or 2, wherein the display control device displays an allowable width set for the vehicle speed pattern so as to overlap the travel road surface. The vehicle test system according to any one of claims 1 to 3, wherein the display control device displays a plurality of first auxiliary lines extending along the width direction of the traveling road surface so as to overlap the traveling road surface. 5. The vehicle travel test system according to claim 4, wherein an interval between the first auxiliary lines adjacent to each other changes according to a gradient of the travel road surface. The vehicle test system according to any one of 1 to 5, wherein the display control device displays a plurality of second auxiliary lines extending along the extending direction of the traveling road surface so as to overlap the traveling road surface. The display control device displays the plurality of second auxiliary lines at equal intervals along the width direction of the traveling road surface,
The vehicle test system according to claim 6, wherein each of the second auxiliary lines indicates vehicle speed at equal intervals. The display control device displays a boundary line indicating an end in the width direction of the traveling road surface;
The vehicle running test system according to any one of claims 1 to 7, wherein the running road surface is represented by a perspective method by the boundary line. An angle formed by a pair of reference straight lines indicating both ends in the width direction of the flat surface extending in the predetermined direction and a tangent to the boundary line is larger as the gradient of the traveling road surface is larger, and smaller as the gradient of the traveling road surface is smaller. The vehicle running test system according to claim 8 displayed. When the traveling road surface is an upward slope, the boundary line indicating the traveling road surface extends in a direction away from the reference straight line,
When the traveling road surface is a downward slope, the boundary line indicating the traveling road surface extends in a direction approaching the reference straight line,
The vehicle travel test system according to claim 9, wherein when the travel road surface is flat, the boundary line indicating the travel road surface extends in parallel with the reference straight line. 11. The display control device according to any one of claims 1 to 10, wherein an actual vehicle speed at a current time of a test vehicle traveling along the vehicle speed pattern is displayed while being moved in the width direction on the traveling road surface. Vehicle driving test system in the section. A chassis dynamo on which a test vehicle can be placed,
The vehicle running test system according to any one of claims 1 to 11, further comprising an exhaust gas measuring device that measures exhaust gas of the test vehicle. A program used for a vehicle travel test system including a display control device that displays a vehicle speed pattern in which a vehicle speed varies according to a travel time or a travel distance on a display,
In the display control device,
While displaying the traveling road surface extending in a predetermined direction on the display so that the gradient can be recognized,
A program for a vehicle running test system that displays the vehicle speed pattern superimposed on the running road surface, where the width direction of the running road surface is a vehicle speed and the traveling direction of the vehicle on the running road surface is a running time or a running distance. A vehicle speed pattern display method for displaying on a display a vehicle speed pattern in which a vehicle speed fluctuates according to a travel time or a travel distance,
While displaying the traveling road surface extending in a predetermined direction on the display so that the gradient can be recognized,
A vehicle speed pattern display method for displaying the vehicle speed pattern superimposed on the traveling road surface, where the width direction of the traveling road surface is a vehicle speed and the traveling direction of the vehicle on the traveling road surface is a traveling time or a traveling distance.

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