KR20170013756A

KR20170013756A - Test cart for frontal crash tests

Info

Publication number: KR20170013756A
Application number: KR1020150106853A
Authority: KR
Inventors: 김장수; 양대호; 김응천; 김경식; 권동근; 이영민; 심기홍
Original assignee: 주식회사 엠에스 오토텍; 김경식; (재)울산테크노파크
Priority date: 2015-07-28
Filing date: 2015-07-28
Publication date: 2017-02-07
Also published as: KR101751702B1

Abstract

An engine model having a plurality of loading spaces partitioned by a bulkhead, the bulkhead for frontal crash test applicable to multiple vehicles; A body configured to mount an engine model; And a mounting means for assembling the engine model to the body. The loading space of the engine model is divided in the lateral direction by the partition walls.

Description

{TEST CART FOR FRONTAL CRASH TESTS}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a frontal crash test vehicle capable of being applied to multiple vehicles.

Collision testing is essential to ensure and ensure the safety and reliability of vehicles and their components. Despite the improvement of simulation technology, it can be said that it is a feature of the vehicle field that makes safety the top priority.

The vehicle crash test proceeds in such a way that the test vehicle collides against a barrier or collides with a vehicle.

For example, a test vehicle loaded with a human body model or a sensor attached to a structure is collided with a fixture to evaluate passenger safety or component reliability, or conversely, a vehicle is collided with a test vehicle to obtain necessary data.

Although the actual vehicle is used as the test vehicle, it is not possible to perform the collision test by using the actual vehicle in all of the various vehicle parts development processes. Therefore, the collision test is carried out using the vehicle equipped with the structure simulating the vehicle.

When a truck is used as a conventional frontal collision test vehicle, the front side member and the bumper beam are usually mounted in front of the truck. This is due to the large proportion of these components in the front structure in terms of safety.

Patent Publication No. 2004-0011925 (Feb.

The present invention is a result of research carried out with the support of the " Project for Supporting the Base Economy Base Base Institution "of the Ministry of Commerce, Industry & Energy and the Korea Industrial Technology Association.

As described above, in the frontal collision test using the bogie, only a partial collision test was performed on the front side member, the bumper beam, or the coupling structure thereof.

In order to guarantee passenger safety in various ways, it is necessary to perform collision test in an environment similar to the actual front structure of the vehicle. It is necessary to observe collisional deformation of forward structures and their behavior into the room.

However, using the actual vehicle in the crash test is too costly, and using the front side member and the bumper mounted bogie, comprehensive data on the crash behavior of the vehicle front structure can not be obtained except for members and beam stiffness .

Therefore, it is necessary to derive appropriate and efficient measures between the above two collision test methods. As the deformable structure mounted on the bogie is closer to the actual vehicle, the cost burden becomes larger, and therefore, a scheme for obtaining the maximum efficiency at the minimum cost is needed.

According to the above consideration, the present invention provides a frontal crash test vehicle capable of realizing a behavior similar to a frontal vehicle crash.

On the other hand, the frontal collision test is not performed for only one vehicle type. In order to apply the same constituent parts to various types of vehicles, it is necessary to perform a collision test for each type of vehicle. However, these considerations and attempts were not made at all.

Accordingly, the present invention intends to provide a frontal collision bogie applicable to a multi-vehicle crash test.

The bogie for frontal crash test according to the present invention comprises: an engine model having a plurality of loading spaces partitioned by partition walls; A body having a front frame and adapted to mount an engine model; And mounting means for assembling the engine model to the body.

According to the embodiment, the loading space of the engine model is divided in the left-right direction by the partition walls which are erected in the front-rear direction and arranged in the left-right direction. In this loading space, plate-like weights can be loaded side by side with the bulkhead.

According to the structure of the engine model as described above, it is easy to simulate the weight and the left / right balance of the engine room according to the type of vehicle, and the rigidity is excellent, so that the collision behavior of the engine model similar to the power train of the actual vehicle is shown.

According to the present invention, in order to easily fix the engine model on the body according to the simulated model, a plate having a plurality of fastening grooves may be provided on the outer surface of the engine model. A fastener for fixing the engine model to the body can be fixed to the fastening groove.

According to the present invention, it is possible to realize a behavior similar to a frontal collision of an actual vehicle.

Also, according to the present invention, it is possible to apply to a collision test of a multi-vehicle bogie.

1 is a side view showing a front collision test vehicle according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a bogie for a frontal crash test in which an engine model is assembled according to an embodiment of the present invention.
3 is an enlarged view of an enlarged engine model according to an embodiment of the present invention.
4 is a perspective view illustrating a partition wall in an engine model according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same components or parts are denoted by the same reference numerals as much as possible for convenience of description.

DETAILED DESCRIPTION OF THE INVENTION The following description is one of many aspects of the claimed invention and the following description may form part of the detailed description of the invention. However, the detailed description of known configurations or functions in describing the present invention may be omitted for clarity.

Referring to FIG. 1, the front collision bogie 10 according to the embodiment has a structure in which a vehicle front structure is simulated using a jig 20 on a known bogie with wheels.

The structure in front of the bogie 20 may include a body 100, an engine model 200, a mounting means 300, and a weight (not shown).

Referring to Figures 1 and 2, the body 100 is rigidly secured to and juxtaposed to the jig 20 and includes a front frame 110, a front side member 140, and a bumper beam 150 .

The front frame 110 is intended to refer to the front part of the main frame of the vehicle, that is, the front part of the body in white (BIW), which is disposed in front of the vehicle as viewed from the inside of the vehicle. .

Preferably, the body 100 includes a dash panel 120, and more preferably a cowl panel 130, and preferably a cowl crossbar (not shown) to simulate crash behavior and interior intrusion of a forward structure at the time of a vehicle collision Not shown).

As shown in FIG. 1, the body 100 preferably includes a part of each of the front pillars 101 and the side seal frames 102 rearward of the dash panel 120. These are the major components supporting the external force due to the front collision, and are needed to simulate the actual vehicle collision behavior more closely.

As shown in FIGS. 1 and 2, the body 100 may include a front side member 140 and at least a bumper beam 150. Usually, the front end module 151 is assembled in front of the vehicle, so that the structure including the front end module 151 can be achieved.

It is the power train that usually takes up a large volume and weight of the front structure of the vehicle. Thus, the vehicle front space is referred to as the engine room, and the body 100 of the front crash test vehicle according to the embodiment also naturally simulates the engine room.

The body 100 may include a subframe of the vehicle, particularly a cross member 160, for mounting the engine model 200 described below. Although it is intended to simulate the actual vehicle as much as possible, a simpler structure may be used if necessary.

The components that are most important in weight and stiffness in the engine room defined by the front frame 110, the members 140 and 160 and the bumper beam 150 or the front end module are powertrains. According to the embodiment, the engine model 200 simulating the power train is mounted in the engine room, and other components are omitted.

The engine model 200 can be obtained by simplifying the outline of the skeleton to some extent through simulation based on data such as shape, connection structure, and weight balance of each of the engine and the transmission.

The inventors of the present invention have developed a frontal crash test vehicle in which an engine room of an actual vehicle is simulated in consideration of the fact that the size, weight, and shape of the power train are different for each vehicle type, but the basic shape model is not largely changed.

As shown in FIG. 3, the engine model 200 can be divided into an engine simulation unit and a transmission simulation unit. The left side is the engine side and the right side is the lower side is the transmission side.

The engine model 200 may be manufactured in different sizes depending on the type of the vehicle. In addition, according to the embodiment, the single engine model 200 modeled by simplification can be directly applied to multiple vehicles. In any case, the engine model 200 should be easily installed on the truck, which will be described later.

The structure of the engine model 200 will be described in detail with reference to FIGS. 3 and 4. FIG.

The engine model 200 may be provided with a plurality of loading spaces 201 partitioned in the left-right direction. The weight can be selectively loaded in each space in consideration of the structural characteristics (for example, weight, left / right balance) of the engine room depending on the type of vehicle in the plurality of loading spaces 201.

Since the power train of the vehicle has different weight, left and right balance depending on the vehicle type, the engine model 200 most similar to the model to be simulated can be obtained by changing the position and the number of the weight in the engine model 200 according to the model of the vehicle. It can be applied to bogies.

The mounting means 300 can be easily mounted on the body 100 having different sizes depending on the type of vehicle, with the installation position of the engine model 200 being different.

The mounting means 300 includes a mounting plate 310 fixed to the engine model 200. A mounting bracket 320 fixed to the body 100 and a connecting piece 330 connecting the mounting plate 310 and the mounting bracket 320 to each other.

The mounting plate 310 includes a first mounting plate 310a fixed to one side of the engine model 200, a second mounting plate 310b fixed to the other side of the engine model 200, And a third mounting plate 310c fixed to a central lower portion of the second mounting plate 310c.

On the first to third mounting plates 310a, 310b and 310c, a plurality of coupling grooves 311 are formed in a matrix. One end of the connecting piece 330 is fastened to the fastening grooves 311 by a fastener (not shown).

Since the plurality of fastening grooves 311 are provided, the fastener fixing position can be easily changed, and therefore, even if the type of the vehicle is changed, the engine model 200 for the body 100 can be easily mounted.

The mounting bracket 320 is an engine mount for buffering vibration and noise of the engine and includes a first mounting bracket 320a positioned on one side of the body 100 and a second mounting bracket 320b positioned on the other side of the body 100, A mounting bracket 320b and a third mounting bracket 320c provided at the lower portion of the body 100. [

The first mounting bracket 320a can be fitted to the connecting piece 330 in the left and right direction of the body 100 to buffer the vibration of the engine in the left and right direction and the second mounting bracket 320b and the third mounting bracket 320b 320c may be assembled to the connecting piece 330 in the vertical direction of the body 100 to buffer vibrations in the vertical direction of the engine.

4 is a perspective view illustrating a partition wall in an engine model according to an embodiment of the present invention.

4, the plurality of loading spaces 201 in the engine model 200 may be partitioned by a plurality of partitions 210. [ The plurality of partition walls 210 are fitted and fixed between the pair of fixing pieces 211 in the interior of the engine model 200. In order to adjust the volume of the loading space 201, (Not shown).

The partition walls 210 divide the interior of the engine model 200 in the left-right direction. For example, the barrier ribs 210 are arranged in the front-rear direction and arranged side-by-side. The loading spaces 201 defined by the partition walls 210 need not have the same size as each other.

According to the structure of the engine model 200 partitioned by the partition walls 210 as described above, it is easy to simulate the weight and the left / right balance of the engine room according to the type of the vehicle, and the rigidity is excellent. And a similar collision behavior.

It is not entirely excluded to arrange the partition walls 210 in the front-rear direction to divide the internal space of the engine model 200 in the front-rear direction, but is not preferred.

It is preferable that the heavy objects are placed in a plate shape in the longitudinal direction as in the case of the partition 210, and are stacked in the left and right direction. Thus, the stiffness of the engine model 200 at the time of collision is reinforced, and the balance of the left and right direction may be adjusted.

As described above, according to the present invention, since the mount position of the engine model corresponding to the engine room of each vehicle type can be moved in one front collision test bogie, the position of the engine room can be adjusted according to the type of the vehicle, Accordingly, since the weight is selectively loaded in the loading space 201 in the engine model, the weight and the balance of the engine room can be variously adjusted according to the type of the vehicle.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. For example, a person skilled in the art can change the material, size and the like of each constituent element depending on the application field or can combine or substitute the embodiments in a form not clearly disclosed in the embodiments of the present invention, Of the range. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and that such modified embodiments are included in the technical idea described in the claims of the present invention.

100: Body 200: Engine model
300: mounting means 310: mounting plate
320: mounting bracket 330: connecting piece

Claims

An engine model having a plurality of loading spaces partitioned by partition walls;
A body configured to mount the engine model including a front frame, a front side member, and a bumper beam; And
And mounting means for assembling the engine model to the body.

The engine model of claim 1,
Wherein the partition wall is divided in the left-right direction by barrier ribs which are erected in the front-rear direction and are arranged in the left-right direction.

The apparatus of claim 2, further comprising a weight mounted in the loading space,
Characterized in that the heavy objects are stacked in a plate-like manner in the fore-and-aft direction like the bulkheads and are stacked in the left-right direction.

The image forming apparatus according to any one of claims 1 to 3,
And a plate having a plurality of fastening grooves formed in the engine model and fastening the fasteners.

5. The apparatus of claim 4,
A first plate provided on one upper side of the engine model;
A second plate provided on an upper portion of the other side of the engine model; And
And a third plate at the bottom of the engine model.

5. The connector according to claim 4,
Characterized in that it is arranged in the form of a matrix on the plate.

5. The apparatus according to claim 4,
A mounting bracket installed on the body,
Wherein the one end portion is fixed to the fastening groove and the other end portion further comprises a connecting piece fastened to the mounting bracket by a fastener.