KR20230141185A - Apparatus for test of vehicle - Google Patents

Abstract

A vehicle testing device according to an embodiment includes an impactor that applies an impact to a vehicle in a first direction; and a projectile that impacts the vehicle in a second direction different from the first direction.

Description

Vehicle testing device {APPARATUS FOR TEST OF VEHICLE}

One embodiment of the present invention relates to a vehicle testing device, and specifically to a sled testing device for reproducing atypical complex collisions.

When testing a vehicle, certain standards can be established and completeness can be checked based on whether it meets these standards.

In particular, the safety of a vehicle is related to the lives of its occupants, and can be said to be the factor that has the greatest impact on the completeness of the vehicle.

These safety tests include seat safety tests, test dummy durability tests, airbag operation tests, and door lock deformation tests.

Although research is being conducted on various test devices for these tests, improvements for various tests are lacking.

A vehicle testing device according to an embodiment includes an impactor that applies an impact to a vehicle in a first direction; and a projectile that impacts the vehicle in a second direction different from the first direction.

The projectile according to one embodiment may impact the vehicle in a direction perpendicular to the first direction.

The vehicle testing device according to one embodiment may further include a bottom plate disposed close to at least a portion of the projectile.

The vehicle test device according to one embodiment may further include an upper plate disposed on at least a portion of the lower plate.

The vehicle test device according to one embodiment may further include an impactor base structure disposed below at least a portion of the impactor.

The vehicle test device according to one embodiment may further include a stopper structure disposed close to at least a portion of the top plate.

The vehicle test device according to one embodiment may further include a stopper base structure disposed below at least a portion of the stopper structure.

The vehicle testing device according to one embodiment may further include a linear motion (LM) rail disposed between at least a portion of the bottom plate and at least a portion of the top plate.

The vehicle test device according to one embodiment may further include a linear motion (LM) guide disposed on at least a portion of the linear motion rail.

A control device for testing a vehicle according to an embodiment includes an impactor control unit that controls an impactor that applies an impact to the vehicle in a first direction; And it may include a projectile control unit that controls a projectile that impacts the vehicle in a second direction different from the first direction.

A vehicle testing method according to an embodiment includes applying an impact to a vehicle in a first direction; and applying an impact to the vehicle in a second direction different from the first direction.

The step of applying an impact to the vehicle in the second direction according to one embodiment may include applying an impact to the vehicle in a direction perpendicular to the first direction.

In the step of applying an impact in the first direction according to one embodiment, an impact may be applied to the vehicle using an impactor.

The step of applying an impact to the vehicle in the second direction according to one embodiment may include applying an impact to the vehicle using a projectile.

1 is a diagram showing the front of a vehicle test device according to an embodiment.
Figure 2 is a diagram showing a side of a vehicle test device according to an embodiment.
Figure 3 is a diagram showing the configuration of a vehicle test device according to an embodiment.
Figure 4 is a diagram showing the operation of a vehicle test device according to an embodiment.
Figure 5 is a diagram showing pulses during operation of a vehicle test device according to an embodiment.
Figure 6 is a diagram showing a comparison of car body and dummy injuries of a vehicle test device according to an embodiment.
Figure 7 is a diagram showing a control device for vehicle testing according to an embodiment.
Figure 8 is a diagram showing a vehicle testing method according to an embodiment.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

However, the technical idea of the present invention is not limited to some of the described embodiments, but may be implemented in various different forms, and as long as it is within the scope of the technical idea of the present invention, one or more of the components may be optionally used between the embodiments. It can be used by combining and replacing.

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention, unless explicitly specifically defined and described, are generally understood by those skilled in the art to which the present invention pertains. It can be interpreted as meaning, and the meaning of commonly used terms, such as terms defined in a dictionary, can be interpreted by considering the contextual meaning of the related technology.

Additionally, the terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention.

In this specification, the singular may also include the plural unless specifically stated in the phrase, and when described as “at least one (or more than one) of A and B and C”, it is combined with A, B, and C. It can contain one or more of all possible combinations.

Additionally, when describing the components of an embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used.

These terms are only used to distinguish the component from other components, and are not limited to the essence, sequence, or order of the component.

And, when a component is described as being 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected, coupled or connected to that other component, but also is connected to that component. It can also include cases where other components are 'connected', 'combined', or 'connected' due to another component between them.

Additionally, when described as being formed or disposed “above” or “below” each component, “above” or “below” refers not only to cases where two components are in direct contact with each other, but also to one This also includes cases where another component described above is formed or placed between two components. In addition, when expressed as “top (above) or bottom (bottom)”, it can include not only the upward direction but also the downward direction based on one component.

Hereinafter, embodiments will be described in detail with reference to the attached drawings, but identical or corresponding components will be assigned the same reference numbers regardless of reference numerals, and duplicate descriptions thereof will be omitted.

1 is a diagram showing the front of a vehicle test device according to an embodiment.

Referring to FIG. 1, the vehicle testing device includes an impactor 101 that impacts a vehicle to be tested in a first direction, and a projectile 102 that impacts the vehicle in a second direction different from the first direction. can do.

Projectile 102 may include a sled projectile.

According to one embodiment, the projectile 102 may impact the vehicle in a direction perpendicular to the first direction.

The first direction may be a side direction of the vehicle, and the second direction may be a front direction of the vehicle.

According to one embodiment, the first direction may be a side direction of the vehicle, and the second direction may be a rear direction of the vehicle. The first direction may be the front direction of the vehicle, and the second direction may be the side direction of the vehicle. The first direction may be toward the rear of the vehicle, and the second direction may be toward the side of the vehicle.

According to one embodiment, the vehicle test device may further include a bottom plate disposed close to at least a portion of the projectile 102.

The height of the location where the lower portion of the bottom plate is disposed may be the same as the height of the location where the upper portion of the projectile is disposed. The lowest position of the bottom plate may be higher than the lowest position of the projectile.

The vehicle test device may further include a sled carriage, and the bottom plate may be disposed on the sled carriage. The sled carriage may be disposed between the highest position of the projectile and the lowest position of the projectile. At least a portion of the bottom plate and at least a portion of the sled carriage may be connected or detachable by a connection means or a detachment means.

The vehicle test device may further include a sled rail, and the sled rail may be disposed below the sled carriage. There may be multiple sled rails. Sled rails may be placed below both sides of the sled carriage.

The sled carriage can move on the sled rails horizontally relative to the sled rails. The sled carriage can move on the sled rails (depending on the impact exerted by the projectile 102). At least a portion of the sled carriage and at least a portion of the projectile 102 may be disposed in close proximity.

According to one embodiment, the vehicle test device may further include an upper plate disposed on at least a portion of the lower plate.

The top plate can move horizontally on top of the bottom plate with respect to the bottom plate.

According to one embodiment, the vehicle test device may further include an impactor base structure disposed below at least a portion of the impactor 101.

The impactor base structure may be installed or placed on the floor of the test room where the vehicle test device is placed.

According to one embodiment, the vehicle test device may further include a stopper structure disposed close to at least a portion of the top plate.

The stopper structure may be disposed in a direction opposite to the impactor 101.

The height of the position where the top plate is arranged may be between the maximum height and the minimum height of the position where the stopper structure is arranged.

The stopper structure can serve to prevent the top plate from leaving the Linear Motion (LM) rail due to movement of the top plate due to impactor impact.

According to one embodiment, the vehicle test device may further include a stopper base structure disposed below at least a portion of the stopper structure.

The stopper base structure may be installed or placed on the floor of the test room where the vehicle test device is placed. The stopper base structure may be disposed in an opposite direction to the impactor base structure.

According to one embodiment, the vehicle test device may further include a linear motion (LM) rail disposed between at least a portion of the bottom plate and at least a portion of the top plate.

The linear motion (LM) rail may be disposed on the bottom plate, and at least a portion of the linear motion rail and at least a portion of the bottom plate may be connected or detachable by a connection means or a detachment means.

According to one embodiment, the vehicle test device may further include a linear motion (LM) guide disposed on at least a portion of the linear motion rail.

The linear motion guide may move (depending on the impact applied by the impactor 101) on at least a portion of the linear motion rail. The moving distance of the linear motion guide may be determined by the size of the impact applied by the impactor 101, and the moving direction of the linear motion guide may include a direction opposite to the direction of the impact applied by the impactor 101 to the vehicle. When the impact direction applied by the impactor 101 is on the left side of the vehicle, the moving direction of the linear motion guide may be on the right side of the vehicle. When the impact direction applied by the impactor 101 is on the right side of the vehicle, the moving direction of the linear motion guide may be on the left side of the vehicle. When the impact direction applied by the impactor 101 is the front of the vehicle, the moving direction of the linear motion guide may be the rear of the vehicle. When the impact direction applied by the impactor 101 is the rear of the vehicle, the moving direction of the linear motion guide may be the front of the vehicle.

The moving direction of the linear motion guide may include the same direction as the direction of impact applied by the impactor 101. When the impact direction applied by the impactor 101 is from the left to the right of the vehicle, the moving direction of the linear motion guide may be from the left to the right of the vehicle. When the impact direction applied by the impactor 101 is from the right to the left of the vehicle, the moving direction of the linear motion guide may be from the right to the left of the vehicle. When the impact direction applied by the impactor 101 is from the front to the rear of the vehicle, the moving direction of the linear motion guide may be from the front to the rear of the vehicle. When the impact direction applied by the impactor 101 is from the rear to the front of the vehicle, the moving direction of the linear motion guide may be from the rear to the front of the vehicle.

A top plate may be placed on the linear motion guide.

At least a portion of the top plate and at least a portion of the linear motion guide may be connected or detachable by a connecting means or a detachable means.

Figure 2 is a diagram showing a side of a vehicle test device according to an embodiment.

Referring to FIG. 2, the vehicle test device can cause a primary collision (Y direction) as a first impact due to the impactor and a secondary collision (X direction) as a second impact due to the projectile. . The projectile may be a sled projectile 202.

The vehicle test device may include a sled tester (SLED TESTER) and a simulated crash tester that reproduces the deceleration waveform of the vehicle body when a real vehicle crashes using projectile thrust. The vehicle under test can be fixed on a sled carriage, and the sled carriage can be launched in a defined axial direction along the sled rail.

The lower plate is fixed to the sled carriage, and a linear motion (LM: Linear Motion) rail in the Y direction can be fixed to the top of the lower plate.

The upper plate has a linear motion (LM) guide attached to the lower part, and at least a part of the vehicle, which is a test object, can be fixed to the upper part. Upon impact with the impactor, the top plate moves in the Y direction along the LM rail, allowing the lateral body behavior of an actual vehicle to be reproduced during a collision.

The impactor base structure is a structure for fixing the impactor to apply impact to the bottom plate, and can be installed on the floor of the test room, a separate space, to prevent damage to the sled rail and sled carriage during impact.

The impactor can perform a projectile function to impart lateral impact.

Figure 3 is a diagram showing the configuration of a vehicle test device according to an embodiment.

Referring to Figure 3, the test wall 305 may be fixedly mounted on the top plate.

The impactor 301 can apply an impact to the upper plate in the Y direction.

Base structure 304 may support the reaction force for impactor operation.

The lower part of the upper plate 303 may be fastened to the LM guide, and the upper part of the upper plate 303 may be fastened to the test wall 305.

The lower portion of the lower plate 302 may be fixed to the sled carriage, and the upper portion of the lower plate 302 may be mounted on the LM rail.

The lower part of the LM rail 308 may be fixed to the lower plate, and the upper part of the LM rail 308 may be mounted on the LM guide.

The stopper 306 may restrict the movement of the upper plate 303 or the test wall 305.

The base structure 307 may support the reaction force for the operation of the stopper 306.

Figure 4 is a diagram showing the operation of a vehicle test device according to an embodiment.

Figure 4 (a) shows movement on the LM rail according to the impactor disposed on the right side of the vehicle during actual operation of the vehicle test device. Figure 4(b) shows the movement on the sled rail according to the projectile placed in front of the vehicle during actual operation of the vehicle test device.

The vehicle test device uses a new sled test device to reproduce a complex crash mode in which a secondary collision occurs after the first collision, and uses a rail in the Y direction to provide a Y-direction pulse to the vehicle body during the first collision. and a linear motion (LM) guide may be installed.

The vehicle test device applies an impact in the Y direction to the test vehicle (BUCK) fixed to the sled plate using an impactor device, and then applies a pulse in the X direction of the vehicle body during a secondary collision using a sled projectile to 1 , technology can be used to reproduce the complex collision phenomenon of secondary collisions.

The vehicle test device is a dynamic sled crash test device that can replace real-vehicle crash tests for atypical complex crash modes, and can provide the basic characteristics of sled test equipment, including unidirectional rails and other rails, and real-vehicle crash tests. It may include simulated crash test equipment that generates shock pulses in the direction of the main impact occurring during the crash.

The vehicle test device has the effect of ensuring vehicle safety through detailed tuning of restraint systems under actual accident collision conditions for complex collisions, and dynamic reproduction of complex crash modes determines whether and when restraint systems such as airbags and seat belts are activated. It has the advantage of being able to evaluate dynamic sleds that can replace actual vehicle collisions with respect to the impact of passenger injuries.

In addition, the vehicle test device can contribute to improving the reliability of evaluation technology through the development of new sled evaluation techniques, and the test device can be applied to crash modes in which lateral movement of the vehicle body occurs.

The vehicle test device can reproduce the dummy behavior during the primary collision (event 1) using a new test device configuration (impactor + linear motion guide) using a complex collision mode analysis and reproduction method. there is.

The vehicle test device can secure the freedom of movement of the test vehicle body in the Y direction. The vehicle test device can have rails and linear motion guides installed on the top of the sled plate, operate the impactor, and apply a Y-direction impact pulse (ACU ACC_Y, etc.) to the test vehicle body.

The impactor's actuator's operating force can use the explosion pressure of the inflator.

The vehicle test device can measure continuous dummy behavior and dummy injury by applying a secondary collision pulse using a sled projectile as a secondary collision (event 2) using a complex collision mode analysis and reproduction method.

A vehicle test device may utilize a sled launch vehicle. The vehicle test device can reproduce sled pulses (ACU ACC_X, etc.) by applying deceleration pulses in the vehicle body X direction. The vehicle test device can evaluate the composite crash sled by reflecting the test conditions, and can be performed by changing the dummy, whether airbags and seat belts are applied, and when they are applied.

Figure 5 is a diagram showing pulses during operation of a vehicle test device according to an embodiment.

Referring to FIG. 5, the vehicle body pulse can be known when the vehicle test device is operating.

The vehicle test device can reproduce dummy behavior and injuries for the entire collision section by reproducing vehicle body characteristics for complex collisions.

A complex collision may include at least some of a center line violation complex collision, a median collision complex, and a roadside tree complex collision.

The vehicle test device may implement a composite crash sled, and the composite crash sled may be implemented by adding an ACC_Y acceleration pulse (primary crash) and an ACC_X acceleration pulse (secondary crash).

The vehicle test device can use an impactor to apply the amount of impact in the Y direction of the vehicle body initially generated during a primary collision, and can reproduce the acceleration pulse in the X direction of the vehicle body initially generated during a secondary collision using a sled projectile. there is.

Figure 6 is a diagram showing a comparison of car body and dummy injuries of a vehicle test device according to an embodiment.

Referring to Figure 6, it can be seen by comparing the car body and dummy injuries to the passenger seat.

The vehicle test device is an actual sled test result that can be tested by reproducing the primary collision with the oncoming vehicle after crossing the center line and the secondary collision with the impactor impact and projectile impact, and reproduces the actual vehicle dummy behavior as the sled dummy behavior. can do.

The vehicle test device can be controlled to display the test status through a connected user terminal or display. The vehicle test device may include a display device or display that displays results for the test.

A display connected to or included in the vehicle test device may display X-axis acceleration or Y-axis acceleration for at least some of the dummy's head acceleration, chest acceleration, pelvic acceleration, and body acceleration. X-axis acceleration or Y-axis acceleration may include acceleration due to a primary impact (collision) or secondary impact (collision).

The display connected to or included in the vehicle test device may additionally display Z-axis acceleration for at least some of the dummy's head acceleration, chest acceleration, pelvic acceleration, and body acceleration. Z-axis acceleration may include acceleration due to a tertiary impact (collision).

Figure 7 is a diagram showing a control device for vehicle testing according to an embodiment.

Referring to FIG. 7, the control device 700 for vehicle testing includes an impactor control unit 701 that controls an impactor that applies an impact to the vehicle in a first direction, and an impactor control unit 701 that controls an impactor that applies an impact to the vehicle in a second direction different from the first direction. It may include a projectile control unit 702 that controls the projectile that applies impact.

The control device 700 for vehicle testing can control at least part of the vehicle testing device described above. The control device 700 for vehicle testing may include at least a portion of the vehicle test device described above or may be connected to at least a portion of the vehicle test device described above.

Figure 8 is a diagram showing a vehicle testing method according to an embodiment.

Referring to FIG. 8, each step of the vehicle testing method may be performed by at least some of the components of the vehicle testing device described above.

In step 801, the vehicle test device may apply an impact to the vehicle in a first direction.

According to one embodiment, the vehicle testing device may apply an impact to the vehicle in a first direction using an impactor. The first direction may be the side of the vehicle.

At step 802, the vehicle test device may impact the vehicle in a second direction that is different from the first direction.

According to one embodiment, the vehicle test device may apply an impact to the vehicle in a second direction that is perpendicular to the first direction. The second direction may be the front of the vehicle.

According to one embodiment, the vehicle test device may apply an impact to the vehicle in a second direction using a projectile.

The term '~unit' used in this embodiment refers to software or hardware components such as FPGA (field-programmable gate array) or ASIC, and the '~unit' performs certain roles. However, '~part' is not limited to software or hardware. The '~ part' may be configured to reside in an addressable storage medium and may be configured to reproduce on one or more processors. Therefore, as an example, '~ part' refers to components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, and procedures. , subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. The functions provided within the components and 'parts' may be combined into a smaller number of components and 'parts' or may be further separated into additional components and 'parts'. Additionally, components and 'parts' may be implemented to regenerate one or more CPUs within a device or a secure multimedia card.

Although the present invention has been described above with reference to preferred embodiments, those skilled in the art may make various modifications and changes to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that you can do it.

Claims (14)

An impactor that applies an impact to the vehicle in a first direction; and
A projectile that impacts the vehicle in a second direction different from the first direction.
A vehicle test device comprising:
According to paragraph 1,
The projectile is,
A vehicle testing device that applies an impact to the vehicle in a direction perpendicular to the first direction.
According to paragraph 1,
A bottom plate disposed in close proximity to at least a portion of the projectile
A vehicle test device further comprising:
According to paragraph 3,
A top plate disposed on at least a portion of the bottom plate
A vehicle test device further comprising:
According to paragraph 1,
Impactor base structure disposed below at least a portion of the impactor
A vehicle test device further comprising:
According to paragraph 4,
A stopper structure disposed close to at least a portion of the top plate
A vehicle test device further comprising:
According to clause 6,
A stopper base structure disposed below at least a portion of the stopper structure.
A vehicle test device further comprising:
According to paragraph 4,
A linear motion (LM) rail disposed between at least a portion of the bottom plate and at least a portion of the top plate.
A vehicle test device further comprising:
According to clause 8,
A linear motion (LM) guide disposed on at least a portion of the linear motion rail.
A vehicle test device further comprising:
In a control device for vehicle testing,
An impactor control unit that controls an impactor that applies an impact to the vehicle in a first direction; and
A projectile control unit that controls a projectile that impacts the vehicle in a second direction different from the first direction.
A control device comprising a.
applying an impact to the vehicle in a first direction; and
applying an impact to the vehicle in a second direction different from the first direction.
Vehicle testing method including.
According to clause 11,
The step of impacting the vehicle in the second direction includes:
A vehicle testing method of applying an impact to the vehicle in a direction perpendicular to the first direction.
According to clause 11,
The step of applying an impact in the first direction is,
A vehicle testing method that applies impact to the vehicle using an impactor.
According to clause 11,
The step of impacting the vehicle in the second direction includes:
A vehicle testing method that applies impact to the vehicle using a projectile.