KR101063891B1 - 1/4 vehicle testing machine - Google Patents

Abstract

The present invention relates to a 1/4 vehicle tester, and the test result is configured to be closer to the test result of the actual vehicle, and can be assembled in consideration of design and processing errors when assembling the jig to which the suspension parts are fixed. By eliminating the problem of jig plate and jig reworking, it is possible to reduce the material cost and to configure the test system more simply and quickly.

To this end, the present invention and the base plate; A U-frame having a U-shaped structure coupled to the base plate; A quarter vehicle tester is provided, comprising a main plate coupled to the front of the U-frame.

1/4, vehicle, tester, suspension, main plate

Description

Quarter car simulator

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle tester, and more particularly to a quarter vehicle tester for fatigue endurance testing of various suspension components such as control arms used in suspension of a general vehicle.

In general, the 1/4 Car test refers to the fatigue durability test of each component constituting the suspension of the vehicle. The 1/4 Car test corresponds to the entire vehicle test by testing the 1/4 part of the vehicle. You get a result.

1 is a real vehicle showing the test type, the green ellipse part is a full car test, the blue ellipse part is a half car test, and a red ellipse part ("A" part in the drawing). Are indicated for the quarter (Quarter) vehicle test.

In order to obtain the most accurate data, it is desirable to conduct a full car test in reality. However, the time and cost involved and the relationship between the current quarter vehicle test, half vehicle test and full vehicle test Because of the grasp, the results can be obtained even if the full car test is not necessarily performed.

On the other hand, the method for the test is performed by assembling the parts constituting each suspension device in the same manner as a complete vehicle. In the 1/4 vehicle test, the red ellipse suspension shown in FIG.

In general, 1/4 vehicle testers include trailing arms, assist arms, lower arms, damper springs, shock absorbers, knuckles, etc. It is configured to test the suspension parts.

Looking at the configuration of a conventional 1/4 vehicle tester (Simulator) with reference to Figure 2, the base plate, U-frame of the U-shaped structure coupled to the base plate, and various suspension components for coupling to the U-frame It includes a jig, an actuator for inputting loads to test the suspension components, and a wheel that replaces the actual vehicle wheel in the test.

At this time, the front surface of the U-frame is formed with a plurality of bolt fastening holes that can be fastened jig for mounting various suspension parts.

In addition, the existing 1/4 vehicle tester performed a 1/4 vehicle test including a cross member.

That is, referring to Figure 2, the damping spring and the shock absorber jig is installed on the U-frame, the conventional 1/4 vehicle tester configured as described above uses a cross member passing through the intermediate space of the U-frame do.

However, the conventional 1/4 vehicle tester configured as described above has the following problems.

First, the conventional 1/4 vehicle tester has a U-shaped frame due to the installation of the cross member. However, when testing only the suspension parts such as the control arm without testing the cross member, the frame does not have to be U-shaped. .

Nevertheless, since the suspension member to be tested is not supported unless the cross member is installed, suspension parts such as control arms cannot be fixed and tested without the installation of the cross member.

In addition, the conventional 1/4 vehicle tester combines the suspension components from the bottom to the top even if the cross member is installed, and thus, the suspension components for the test are combined differently from the actual vehicle configuration, thereby reducing the reliability of the test results. There was this.

That is, by fixing the parts using the lower jig fixed to the base plate, there is a result that does not provide an environment close to the actual vehicle.

On the other hand, the conventional quarter-vehicle tester due to the structural characteristics of the U-frame, the middle of the cross member is empty to pass through this part to combine the suspension parts, it was impossible to fix the jig without the cross member.

In other words, the jig for the 1/4 vehicle tester refers to a part which is connected to and fixed to a cross member instead of a cross member when the vehicle tester is configured, or to a part that is not connected to a suspension part. Since the cross member needed for the joining was extended to the opposite side of the U-frame, it had to be fixed on the floor.

In addition, in the case of the existing tester, in order to test the suspension parts of one vehicle type after testing one vehicle type, there is a disadvantage in that all of the lower jigs and cross members are newly manufactured and replaced. For reference, the cross member is the largest and most expensive component, and is a component suitable for applying to a half car test rather than a quarter car test.

That is, in the case of the existing tester, the lower jig is installed on the base plate to combine the parts and perform the test. Since the configuration of the tester for each vehicle is restarted from the beginning, it is cumbersome to install with the overall cost. have

In addition, in the case of the conventional jig for a vehicle tester, it is difficult to apply even slight distortions, basic movements of right and left, and up and down, so that the jig plate and jig have to be redesigned and reworked.

The present invention is to solve the above problems, and to configure the test results using a 1/4 vehicle tester closer to the test results of the actual vehicle, as well as design and processing when assembling jig and jig plate The aim is to provide a 1 / 4-vehicle tester that can reduce the cost of materials and make the test system simpler and faster by eliminating the problems caused by the reworking of the jig and jig plate by allowing the assembly with consideration of errors.

In order to achieve the above object, the present invention and the base plate; A U-frame having a U-shaped structure coupled to the base plate; A quarter vehicle tester is provided, comprising a main plate coupled to the front of the U-frame.

The effects of the present invention are as follows.

The 1/4 vehicle tester of the present invention is configured in a form in which a cross member is removed. This results in cost savings for components and convenience in the construction of the tester, and allows the test results using the 1/4 vehicle tester to be closer to the test results of the actual vehicle.

On the other hand, 1/4 vehicle tester of the present invention, since the main plate, jig play and jig to the left and right and up and down direction of the jig, and the distortion of the parts to be fixed considering the configuration can be configured more smoothly and simply the tester.

That is, according to the present invention, since the cross member is removed, the jig can be configured without going over to the opposite side, and the quarter vehicle is fixed by fixing the suspension parts at the front to implement the 1/4 vehicle test in a real vehicle close to the actual vehicle. The reliability of the test results can be increased.

In addition, the present invention can delete the cross member, the largest and most expensive parts, and the lower jig is deleted, so that the test system can be easily configured regardless of the test vehicle, thereby reducing the overall cost and eliminating installation troubles. .

Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to FIGS. 3 to 9.

First, Figure 3 shows a 1/4 vehicle tester of the present invention, a perspective view illustrating a state in which various jigs and suspension components are coupled, Figure 4 is a front view of Figure 3, Figure 5 is a suspension of the vehicle of Figure 3 This is a reference perspective diagram showing the assembly of the control arm and the test jig assembly.

6A is a perspective view showing only the U-frame and the base plate of the vehicle tester of FIG. 3 separately, and FIG. 6B is a front view showing only the main plate of FIG. 3.

On the other hand, Figure 7 is a schematic diagram for explaining the coupling structure of the 1/4 vehicle tester of the present invention, Figure 8 is a detailed view of the jig plate of Figure 7, Figure 9 shows the fatigue endurance test load input direction of the vehicle rear See also.

Referring to these drawings, the 1/4 vehicle tester of the present invention includes a base plate 1, a U-frame 2 having a "U-shaped" structure coupled to the base plate 1, and the U- It is configured to include a main plate (3) coupled to the front of the frame (2).

Of course, a plurality of fastening holes are provided on the front surface of the U-frame 2 as before.

On the other hand, the 1/4 vehicle tester of the present invention, a variety of jig plate 4 for mounting the suspension parts to be coupled to the main plate (3), and various jig (5) coupled to the suspension plate mounting jig plate (4) It is configured to include).

In this case, the main plate 3 is provided with a plurality of fastening holes 300 and through holes 310 through which the stabilizer bar 12 passes.

Meanwhile, referring to FIG. 8, a plurality of long holes are formed on the surface of the jig plate 4, and the long holes are formed of a transverse long hole 400a and a longitudinal long hole 400b.

The lateral slot 400a considers a design error and a machining error in the left and right directions when fixing the jig plate 4 to the main plate 3, and the longitudinal slot 400b is the jig plate 4. In order to fix the jig (5) in the upper and lower directions in consideration of the design error and processing error, the longitudinal hole 400b is formed in the center of the jig plate 4, the horizontal holes 400a on both the left and right sides thereof Is formed.

In addition, the jig 5 (Jig) finally combined with the suspension component is configured to be rotatable, and is configured to be rotated and fixed in consideration of the twist angle when there is distortion of other components.

On the other hand, the jig 5 includes a control arm jig 5a, an assist arm jig 5b, a damping spring, a shock absorber jig 5c, and the like, as shown in FIG. Generic jig for suspension parts.

Assembly of the jig 5 and its operation of the 1/4 vehicle tester of the present invention configured as described above are as follows.

The 1/4 vehicle tester of the present invention is a basic type tester consisting of a base plate 1 (Base Plate) and a U-frame (U-Frame), as shown in FIG. By adding the Main Plate, the components can be assembled from the front, similar to the actual vehicle configuration, rather than the conventional method of combining the components from the bottom up.

That is, referring to the schematic diagram of FIG. 7, the main plate 3 is coupled to the U-frame 2, and the jig plate 4 is mounted on the main plate 3 again. Then, the jig 5 is assembled to the jig plate 4 to be engaged with each suspension component.

Meanwhile, referring to FIG. 8, the structure and the working example of the jig plate 4 are applied to the jig plate 4, and the lateral direction 400a and the longitudinal length 400b are applied to the jig plate 4. The long hole 400a enables left and right movement when the jig plate 4 is coupled to the main plate 3, and the longitudinal long hole 400b is up-down when assembling the jig 5 (Jig). Fine adjustment of is possible. This configuration basically solves the assembly problems that may occur even if the errors that may occur in the jig design are minimized.

Then, the jig 5 (Jig) finally combined with the suspension component is configured to rotate, so that if there is a distortion of other components, it is possible to rotate and fix in consideration of the twist angle.

And before the final test, the jig arm and the jig bar constituting the jig 5 can have strength through welding.

Hereinafter, the operation of the 1/4 vehicle tester assembled as described above will be described.

3 to 5, FIG. 3 is a perspective view of a 1/4 vehicle tester designed according to the above description, and inputs a load to the input receiving portion 7 using an actuator (see FIG. 2). The vehicle is to be tested like a quarter vehicle tester in use.

The portion for inputting the load to the input receiving portion 7 is to input the load received by the vehicle using the hydraulic pressure as the load input portion (see "B" portion of Figure 2).

On the other hand, Figure 5 is a view showing a state in which a control arm 8 (Control Arm), which is a suspension component that currently enters a vehicle to be tested, is coupled to a jig and a jig plate. The control arm 8 is coupled to the knuckle 6 and the ball joint, and is connected to the jig 5 (Jig) and the jig plate 4 (Jig Plate) to form a tester.

This, 1/4 vehicle tester of the present invention by applying the base plate (1), the U-frame (2), the main plate (3), it is possible to perform a test at a minimum cost for various vehicle tests .

In addition, since the 1/4 vehicle tester of the present invention considers movement along each direction so that design and processing errors can be considered when assembling the main plate 3, the jig plate 4, and the jig 5, The problem of correction and rework can be solved.

Meanwhile, the 1/4 vehicle tester of the present invention is configured in a form in which a 1/4 vehicle tester used in the past is removed from a cross member. This results in cost savings for components and convenience in tester configuration.

In addition, the present invention can reduce the time required for the tester configuration in a 1/4 vehicle tester.

In addition, in the 1/4 vehicle tester of the present invention, the main plate 3, the jig plate 4, and the jig 5 are shifted from side to side, up and down, and twists of the parts to be fixed are considered. The tester can be configured.

On the other hand, in the case of the existing 1/4 vehicle tester, the jig cannot be used continuously when the vehicle model is changed, and it is difficult to apply the design to the slight movement of the jig and the basic movement of the left and right and the upper and lower sides, but the present invention must be redesigned. 1/4 vehicle tester takes into account the movement in each direction so that design and machining errors can be considered during assembly, thus solving the problem of jig design modification and reworking.

On the other hand, the cross member (cross member) has to be fixed to the floor because the cross member passes through the U-frame to the opposite side, but the present invention has the advantage that the jig device can be configured without going to the opposite side because the cross member is removed There is this.

And, in fixing the suspension parts, as in the case of using the existing cross member is fixed from the front without using the floor, it is possible to obtain a test result close to the actual vehicle state.

The present invention is not limited to the above embodiments, and various changes and modifications can be made without departing from the scope of the technical idea of the present invention.

That is, the rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and various changes and modifications can be made by those skilled in the art within the scope of the claims. It is self evident.

1 is a reference diagram illustrating the type of vehicle test.

Figure 2 is a reference picture showing a conventional actual 1/4 vehicle tester

Figure 3 is a 1/4 vehicle tester of the present invention, a perspective view illustrating a state in which various jigs and suspension components are coupled

4 is a front view of FIG. 3

FIG. 5 is a reference perspective view illustrating an assembly state of a control arm and a test jig assembly, which are suspension parts of the vehicle of FIG. 3. FIG.

FIG. 6A is a perspective view illustrating only a U-frame and a base plate of the vehicle tester of FIG. 3 separately. FIG.

6B is a front view illustrating only the main plate of FIG. 3.

7 is a schematic view for explaining the coupling structure of the 1/4 vehicle tester of the present invention

8 is a detailed view of the jig plate of FIG. 7, (a) is a side view, and (b) is a front view.

9 is a reference diagram showing the fatigue durability test load input direction of the vehicle rear (Rear)

Explanation of symbols on the main parts of the drawings

1: base plate 2: U-frame

3: main plate 4: jig plate

400a, 400b: Long field 5: jig

5a: Jig for Control Arm 5b: Jig for Assist Arm

5c: Jig for damper spring and shock absorber

6: Knuckle 7: Input housing

8: control arm

Claims (6)

A base plate 1; U-frame (2) of the U-shaped structure coupled to the base plate (1); 1/4 vehicle tester, characterized in that it comprises a main plate (3) coupled to the front of the U-frame (2). The method of claim 1, Jig plate (4) for mounting various suspension components coupled to the main plate (3), 1/4 vehicle tester, characterized in that it further comprises a variety of jigs (5) coupled to the suspension component mounting jig plate (4). The method of claim 2, The main vehicle (3) is a quarter vehicle tester, characterized in that a plurality of fastening holes 300, the through hole 310 through which the stabilizer bar 12 passes. The method of claim 2, A plurality of long holes are formed on the surface of the jig plate (4), wherein the long holes are made of a transverse long hole (400a) and a longitudinal long hole (400b). The method of claim 4, wherein Longitudinal long holes 400b are formed at the center of the surface of the jig plate 4, and transverse long holes 400a are formed at both left and right sides thereof. The lateral slot 400a is to consider the design error and the machining error in the left and right direction in fixing the jig plate 4 to the main plate 3, the longitudinal slot 400b is the jig plate 4 (1) The 1/4 vehicle tester characterized in that the design and processing errors in the vertical direction are taken into consideration when the jig (5) is fixed. The method of claim 2, The jig (5) is a 1/4 vehicle tester, characterized in that configured to be rotated and fixed in consideration of the twist angle in case of distortion of other parts.

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