CN111919102B

CN111919102B - Trolley for automobile collision test and automobile collision simulation test device

Info

Publication number: CN111919102B
Application number: CN201980022233.2A
Authority: CN
Inventors: 西村隼人
Original assignee: Mitsubishi Heavy Industries Machinery Systems Co Ltd
Current assignee: Mitsubishi Heavy Industries Machinery Systems Co Ltd
Priority date: 2018-04-09
Filing date: 2019-04-09
Publication date: 2022-09-20
Anticipated expiration: 2039-04-09
Also published as: WO2019198722A1; CN111919102A; KR102513737B1; KR20200131308A; JP2019184399A; JP7117130B2

Abstract

The vehicle collision test carriage is provided with: a carriage body that can carry a specimen and can move on a rail disposed in a horizontal front-rear direction; a rolling member provided in the carriage body and capable of switching between a rollable state in which the rolling member is rollably disposed on the rail in a state in which the carriage body is raised and a non-contact state in which the rolling member is disposed in a non-contact state with respect to the rail; and a control device for bringing the rolling member into a non-contact state during a test period of a car collision simulation test in which the carriage body is struck by the launcher and moves while sliding on the rail, and bringing the rolling member into a rollable state during movement in a non-test period different from the test period.

Description

Trolley for automobile collision test and automobile collision simulation test device

Technical Field

The present invention relates to a vehicle crash test carriage and a vehicle crash simulation test apparatus for reproducing the degree of injury of a passenger due to a secondary collision by reproducing the acceleration generated in a passenger compartment during a collision without damaging the vehicle.

Background

Generally, as a collision test of an automobile, there is an actual vehicle collision test for evaluating physical quantities such as a collision amount and a remaining space amount of a passenger compartment and a value of injury of an occupant, but a method of mounting a dummy on an actual vehicle and colliding with an obstacle at a predetermined speed is a destructive test, and very high cost is required. Therefore, a vehicle body in white, a dummy body, or the like, on which a dummy, an airbag, or the like is mounted, is mounted on a carriage (vehicle for dynamic secondary collision test), and the vehicle for dynamic secondary collision test is given an acceleration substantially equal to that at the time of actual vehicle collision, so that the degree of collision applied to a test piece is reproduced nondestructively to evaluate the injury value of a passenger, and a vehicle collision simulation test for developing a safety device such as an airbag is performed.

As such an automobile collision simulation test device, for example, there is a device described in patent document 1 below. The automobile collision simulation test device described in patent document 1 includes a secondary dynamic collision test vehicle capable of carrying a test piece and moving on a horizontal front and rear rail, and a launcher capable of striking a piston toward the secondary dynamic collision test vehicle.

Documents of the prior art

Patent document

Patent document 1 (Japanese unexamined patent publication No. 2012-002699)

Disclosure of Invention

Problems to be solved by the invention

In the vehicle collision simulation test apparatus described in patent document 1, the secondary collision dynamic test vehicle is configured to slide on a rail while moving. For example, when the vehicle for the dynamic test of secondary collision is returned to the launching start position after the vehicle for the dynamic test of secondary collision is struck, the vehicle for the dynamic test of secondary collision is pulled in the opposite direction while sliding on the track. In this case, since sliding friction is generated between the vehicle for the secondary collision dynamic test and the track, it is necessary to couple, for example, a roller chain or a winch to the vehicle for the secondary collision dynamic test to pull the vehicle for the secondary collision dynamic test with a large traction force.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a vehicle collision test carriage and a vehicle collision simulation test apparatus that can easily and smoothly move on a rail.

Means for solving the problems

The present invention provides a vehicle collision test carriage, comprising: a carriage body that can carry a specimen and can move on a rail disposed in a horizontal front-rear direction; a rolling member provided in the carriage main body and capable of switching between a rollable state in which the rolling member is rollably disposed on the rail in a state in which the carriage main body is lifted and a non-contact state in which the rolling member is disposed in a non-contact state with respect to the rail; and a control device that sets the rolling member in the non-contact state during a test period of a vehicle collision simulation test in which the carriage body is struck by the launcher and moves while sliding on the rail, and sets the rolling member in the rollable state during movement in a non-test period different from the test period.

Therefore, since the carriage body can move by the movement of the rolling members on the rails, when the carriage body is moved on the rails, the frictional force acting on the carriage body becomes rolling friction smaller than sliding friction. Therefore, the driving force acting on the carriage body can be reduced. This makes it possible to easily and smoothly move the rail.

Further, the vehicle may further include a driving device provided in the carriage main body and configured to apply a driving force in a front-rear direction to the carriage main body, and the control device may apply the driving force to the carriage main body via the driving device when the rolling member is in the rollable state during the non-test period.

Therefore, since the driving device is provided in the vehicle for dynamic secondary collision test itself, it is not necessary to couple a roller chain, a winch, or the like to the vehicle for dynamic secondary collision test when the vehicle for dynamic secondary collision test moves during a non-test period. This can reduce the burden on the operator.

The drive device may include a motor device and a transmission member coupled to an output shaft of the motor device and configured to transmit rotation of the output shaft, the transmission member may be configured to be switchable between a transmission state in which the transmission member is in contact with a side surface of the track and a non-transmission state in which the transmission member is spaced apart from the side surface of the track, and the control device may set the transmission member to the non-transmission state during the test and may set the transmission member to the transmission state when the rolling member is in the rollable state during the non-test.

Therefore, the transmission member is in the non-transmission state during the test period, and therefore, the movement of the vehicle for the secondary collision dynamic test during the test period can be prevented.

The car collision simulation test device of the invention comprises: the trolley for the automobile collision simulation test; and a launching device for launching the trolley main body of the trolley for the automobile collision simulation test to carry out the automobile collision simulation test.

Therefore, since the test is performed using the vehicle collision simulation test carriage capable of easily and smoothly performing the movement of the vehicle for the secondary collision dynamic test during the non-test period, the load on the operator can be reduced, and the vehicle collision simulation test can be easily and smoothly performed.

Effects of the invention

According to the present invention, it is possible to provide a vehicle collision test carriage and a vehicle collision simulation test apparatus that can easily and smoothly move on a rail.

Drawings

Fig. 1 is a schematic configuration diagram showing an example of the automobile collision simulation test apparatus according to the present embodiment.

Fig. 2 is a plan view showing an example of the carriage.

Fig. 3 is a side view showing an example of the carriage when viewed from the side (rear) opposite to the transmitter.

Fig. 4 is a cross-sectional view showing an example of the slider and the rolling device.

Fig. 5 is a cross-sectional view showing an example of the downward movement of the rolling member.

Fig. 6 is a flowchart showing a flow of an operation of the automobile collision simulation test apparatus.

Fig. 7 is a diagram showing a process of operation of the automobile collision simulation test apparatus.

Fig. 8 is a diagram showing a process of operation of the automobile collision simulation test apparatus.

Fig. 9 is a diagram showing a process of operation of the automobile collision simulation test apparatus.

Fig. 10 is a diagram showing a process of operation of the automobile collision simulation test apparatus.

Fig. 11 is a sectional view showing a slider and a rolling device according to a modification.

Fig. 12 is a schematic configuration diagram showing a modified example of the automobile collision simulation test apparatus.

Detailed Description

Embodiments of a car crash test carriage and a car crash simulation test apparatus according to the present invention will be described below with reference to the accompanying drawings. The present invention is not limited to the embodiment. The components in the following embodiments include components that can be easily replaced by those skilled in the art or substantially the same components.

Fig. 1 is a schematic configuration diagram showing an example of an automobile collision simulation test apparatus 100 according to the present embodiment. As shown in fig. 1, the automobile collision simulation test apparatus 100 includes: a vehicle for a secondary collision dynamic test (a vehicle for a car collision simulation test) 10, a launching device 20, a track part 30, and a control device 40.

The vehicle 10 for a secondary collision dynamic test includes: a vehicle body (bogie body) 11 for a secondary collision dynamic test, a slider 12, a rolling device 13, and a drive device 14. Fig. 2 is a plan view showing an example of the secondary collision dynamic test vehicle 10. Fig. 3 is a side view of the secondary collision dynamic test vehicle 10 when viewed from the opposite side (rear side) to the launching device 20. As shown in fig. 2 and 3, the vehicle body 11 for a secondary collision dynamic test is a frame member having a plate material with a predetermined thickness. The vehicle body 11 for the secondary collision dynamic test can mount a test piece 15 on the upper surface. This test piece 15 is, for example, an automobile having only a skeleton, that is, a so-called body-in-white, on which accessories such as a seat, a steering wheel, an airbag, a seat belt, and the like are mounted, and a dummy is mounted. The test piece 15 is placed at a predetermined position on the vehicle body 11 for secondary collision dynamic test and fixed by a fixing member not shown.

In the present embodiment, the front side (left direction in fig. 1) of the automobile as the test piece 15 is the front side of the vehicle body 11 for the secondary collision dynamic test, and the rear side (right direction in fig. 1) of the automobile as the test piece 15 is the rear side of the vehicle body 11 for the secondary collision dynamic test. The vehicle body 11 for the secondary collision dynamic test has a rectangular shape that is long in the horizontal front-rear direction in plan view. In the present embodiment, a direction perpendicular to a horizontal plane is described as an up-down direction.

The slider 12 is disposed on the bottom surface 11a of the vehicle body 11 for secondary collision dynamic test. The slider 12 moves while sliding on the 2

rails

31 and 32 of the rail portion 30. The slider 12 is disposed at each position corresponding to 4 corners on the bottom surface 11a of the vehicle body 11 for secondary collision dynamic test, for example, but is not limited thereto.

Fig. 4 is a cross-sectional view showing an example of the slider 12 and the rolling device 13. As shown in fig. 4, a concave portion 12b is provided on the bottom surface 12a of the slider 12. The rolling device 13 is housed in the recess 12 b. As the rolling device 13, for example, a ball-shaped air elevator or the like is used. The rolling device 13 includes: rolling parts 13a, receiving parts 13b, and an elevator 13 c. The rolling members 13a are rollable on the

rails

31, 32. The rolling member 13a is, for example, spherical, but is not limited thereto, and may be in any shape as long as it can roll on the

rails

31 and 32, and may be in other shapes such as a cylindrical shape, a disc shape, and an annular shape. The receiving member 13b rotatably supports the rolling member 13 a. The receiving member 13b is supported by the lifter 13 c. The lifter 13c moves up and down the rolling member 13a and the receiving member 13b using, for example, air pressure as a driving source. When the rolling member 13a is disposed at the raised position as shown in fig. 4, the rolling member 13a is accommodated in the concave portion 12b of the slider 12 and is in a state of non-contact with the rails 31 and 32 (non-contact state).

Fig. 5 is a cross-sectional view showing an example of a state in which the rolling member 13a moves downward. As shown in fig. 5, the lifter 13c can integrally move the rolling member 13a and the receiving member 13b to a lowered position where a part of the rolling member 13a protrudes downward from the bottom surface 12a of the slider 12. The rolling member 13a is disposed so as to project below the slider 12 and be rollable on the

rails

31 and 32 in a state in which the vehicle body 11 for a secondary collision dynamic test is lifted (rollable state).

In this way, the rolling member 13a can be switched by the lifter 13c between a non-contact state (see fig. 4) in which it is accommodated in the recess 12b of the slider 12 and is not in contact with the

rails

31 and 32 and a rollable state (see fig. 5) in which it protrudes below the slider 12 and is rollable on the

rails

31 and 32 in a state in which the vehicle body 11 for a secondary collision dynamic test is lifted up.

The driving device 14 is provided in the vehicle body 11 for secondary collision dynamic test, and applies a driving force in the front-rear direction to the vehicle body 11 for secondary collision dynamic test. The drive devices 14 are disposed at, for example, 2 locations along the rear end edge of the vehicle main body 11 for a secondary collision dynamic test. Each of the driving devices 14 includes: a motor device 14a, an output shaft 14b, a transmission member 14c, and a slide mechanism 14 d. The motor device 14a is provided as a drive source and rotates the output shaft 14 b. The transmission member 14c is fixed to the output shaft 14b, and rotates integrally with the output shaft 14b to transmit the driving force of the motor device 14 a. The slide mechanism 14d moves the motor device 14a in the left-right direction. The slide mechanism 14d is configured to be able to switch the transmission member 14c between a position where it is in contact with or presses the inner side surfaces 31b and 32b of the

rails

31 and 32 and a position where it is separated from the inner side surfaces 31b and 32b of the

rails

31 and 32 by moving the motor device 14 a. When the transmission member 14c contacts the inner side surfaces 31b, 32b or presses the inner side surfaces 31b, 32b, the transmission member 14c is in a state (transmittable state) in which the driving force of the motor device 14a is transmittable to the inner side surfaces 31b, 32 b. When the transmission member 14c is separated from the inner side surfaces 31b and 32b, the transmission member 14c is in a state (non-transmission state) in which the driving force of the motor device 14a is not transmitted to the inner side surfaces 31b and 32 b. The transmitting member 14c is provided to be switchable between a transmittable state and a non-transmittable state by the slide mechanism 14 d.

The vehicle body 11 for secondary collision dynamic test has a reaction plate 16 at the bottom. One end of the reaction plate 16 is fixed to the bottom of the vehicle body 11 for secondary collision dynamic test, and the other end is disposed below the

rails

31 and 32 in a curved manner. The reaction plate 16 suppresses the secondary collision dynamic test vehicle body 11 from falling off the

rails

31, 32. The reaction plate 16 is disposed below the

rails

31 and 32 with a vertical gap between the

rails

31 and 32. The gap is set to a dimension such that the reaction plate 16 does not contact the

rails

31 and 32 when the vehicle body 11 for the secondary collision dynamic test is lifted by the rolling member 13 a. That is, the rolling member 13a lifts the vehicle body 11 for the secondary collision dynamic test by an amount smaller than the clearance between the reaction plate 16 and the

rails

31 and 32. The vehicle body 11 for the secondary collision dynamic test includes a brake device, not shown. The brake device has a brake piston and a brake pad. The brake piston floats the vehicle body 11 for the secondary collision dynamic test, and brings the slider 12 into a non-contact state with respect to the

rails

31 and 32. The brake pads are sandwiched from above and below with respect to the

rails

31, 32 when the vehicle body 11 for the secondary collision dynamic test is floated.

The launching device 20 has a device body 21 and a piston rod 22. The apparatus main body 21 has a hydraulic mechanism that drives the piston rod 22 by hydraulic pressure, for example. The piston rod 22 moves in the front-rear direction by the driving of the apparatus main body 21, and gives a rearward acceleration to the vehicle main body 11 for a dynamic secondary collision test.

The rail portion 30 has the 2

rails

31 and 32. The

rails

31, 32 guide the vehicle body 11 for the secondary collision dynamic test. The

rails

31, 32 are connected to an air pallet 33. The air pallet 33 has connecting rails 34, 35 connected to the

rails

31, 32, respectively. The air pad 33 can be transported to the outside with the vehicle body 11 for the dynamic secondary collision test placed on the connecting rails 34 and 35. Further, a stopper 36 is disposed behind the air pad 33. The stopper 36 restricts the rearward movement of the vehicle body 11 for a secondary collision dynamic test.

The controller 40 controls the operations of the secondary collision dynamic test vehicle 10 and the launcher 20. The control device 40 includes: a launcher control unit 41, an elevator control unit 42, and a motor control unit 43. The launcher control section 41 controls the operation of the device main body 21 of the launcher 20. The elevator control unit 42 controls the operation of the elevator 13c of the rolling device 13. The motor control unit 43 controls the operation of the motor device 14a of the drive device 14. For example, a vehicle collision simulation test apparatus 100 operated by an operator or an input device 44 for inputting information is connected to the control device 40.

Next, the operation of the vehicle collision simulation test apparatus 100 configured as described above will be described. Fig. 6 is a flowchart showing the flow of the operation of the vehicle collision simulation test apparatus 100. Fig. 7 to 10 are diagrams showing a process of the operation of the automobile collision simulation test apparatus 100. Before the vehicle collision simulation test apparatus 100 is operated, the vehicle body 11 for the secondary collision dynamic test is moved to the test start position P1 (see fig. 1 and 7).

As shown in fig. 6, first, the launcher control unit 41 controls the device body 21 of the launcher 20 to apply a rearward acceleration to the vehicle body 11 for secondary collision dynamic test disposed at the test start position P1, thereby striking the vehicle body 11 for secondary collision dynamic test (step S10). In step S10, the vehicle body 11 for a secondary collision dynamic test floats the slider 12 from the

rails

31 and 32 by the brake piston of the brake device, and moves backward with the

rails

31 and 32 sandwiched from above and below by the brake pads. The vehicle body 11 for the secondary collision dynamic test is gradually decelerated and stopped by friction between the brake pads and the

rails

31 and 32 as shown in fig. 7.

After the vehicle body 11 for secondary collision dynamic test is stopped, the brake piston and the brake pad of the brake device are released, and the elevator control unit 42 lifts the vehicle body 11 for secondary collision dynamic test by the rolling member 13a (step S20). In step S20, as shown in fig. 8, the lifter 13c moves the rolling member 13a and the receiving member 13b downward, whereby a part of the rolling member 13a protrudes downward from the bottom surface 12a of the slider 12. Therefore, the vehicle body 11 for the dynamic secondary collision test is lifted by the rolling members 13a, and is supported by the rolling members 13a on the

upper surfaces

31a and 32a of the

rails

31 and 32. The rolling member 13a is supported by the receiving member 13b, and is thereby in a rollable state rollable in a state where the vehicle body 11 for a secondary collision dynamic test is lifted up. The amount of movement of the rolling member 13a and the receiving member 13b that are moved downward by the lifter 13c can be set in advance, for example.

After the rolling member 13a is placed in the rollable state, the motor control unit 43 presses the transmission member 14c of the drive device 14 against the inner side surfaces 31b and 32b of the rails 31 and 32 (step S30). In step S30, as shown in fig. 9, the motor devices 14a are moved outward in the left-right direction by the slide mechanisms 14d, respectively. By this movement, the output shaft 14b and the transmission member 14c move toward the

rails

31 and 32, respectively, integrally with the motor device 14a, and the transmission member 14c is pressed against the inner side surfaces 31b and 32 b.

After the transmission member 14c is pressed against the inner side surfaces 31b and 32b, the motor control unit 43 rotates the motor device 14a (step S40). In step S40, the output shaft 14b and the transmission member 14c rotate integrally with the rotation of the motor device 14 a. The transmission member 14c rotates to generate a frictional force in the front-rear direction between the transmission member and the inner side surfaces 31b and 32b of the

rails

31 and 32. As shown in fig. 10, the rolling member 13a rolls and the vehicle body 11 for the secondary collision dynamic test moves forward due to the frictional force. In this case, rolling friction is generated between the rolling member 13a and the

upper surfaces

31a, 32a of the

rails

31, 32.

After the secondary collision dynamic test vehicle body 11 moves, it is determined whether or not the motor control unit 43 has instructed to stop the rotation of the motor device 14a (step S50). For example, the operator can visually confirm the position of the vehicle body 11 for the secondary collision dynamic test and input a stop instruction via the input device 44 when approaching the test start position P1. In this case, in step S50, the motor control unit 43 determines whether or not a stop instruction is given from the input device 44. If it is determined that the rotation stop instruction of the motor device 14a is not given (No at step S60), the motor control unit 43 performs the determination at step S50. When it is determined that the rotation stop instruction of the motor device 14a is given (Yes at step S50), the motor control unit 43 stops the rotation of the motor device 14a (step S60). In step S60, the movement of the vehicle body 11 for the secondary collision dynamic test is stopped as the rotation of the motor device 14a is stopped.

After the vehicle body 11 for the secondary collision dynamic test is stopped, the motor control unit 43 brings the transmission member 14c into a non-contact state (step S70). In step S70, the motor control unit 43 moves the motor device 14a inward in the left-right direction, and thereby the transmission member 14c is separated from the

inner surfaces

31b and 32b of the

rails

31 and 32.

After bringing the transmission member 14c into the non-contact state, the elevator control unit 42 returns the rolling member 13a to the storage position (step S80). In step S80, the vehicle body 11 for a secondary collision dynamic test causes the rolling member 13a to rise, thereby accommodating the lower portion of the rolling member 13a in the slider 12. Thus, the bottom surface 12a of the slider 12 is landed on the

rails

31, 32, and the vehicle body 11 for secondary collision dynamic test is supported by the

rails

31, 32 via the slider 12.

As described above, the vehicle 10 for a secondary collision dynamic test according to the present embodiment includes: a secondary collision dynamic test vehicle body 11 capable of carrying a test piece 15 and moving on

rails

31 and 32 arranged in a horizontal front-rear direction; a rolling member 13a provided in the vehicle body 11 for dynamic secondary collision test and capable of switching between a rollable state in which the vehicle body 11 for dynamic secondary collision test is lifted up and arranged rollably on the

rails

31 and 32 and a non-contact state in which the vehicle body is arranged in non-contact with the

rails

31 and 32; the control device 40 sets the rolling member 13a in a non-contact state during a test period of a vehicle collision simulation test in which the vehicle body 11 for a secondary collision dynamic test is struck by the launcher 20 and moves while sliding on the

rails

31 and 32, and sets the rolling member 13a in a rollable state during movement in a non-test period different from the test period.

Therefore, since the rolling members 13a roll on the

rails

31 and 32 to move the vehicle body 11 for dynamic secondary collision test, when the vehicle body 11 for dynamic secondary collision test is moved on the

rails

31 and 32, the frictional force acting on the vehicle body 11 for dynamic secondary collision test is rolling friction smaller than sliding friction. Therefore, the driving force acting on the vehicle body 11 for secondary collision dynamic test can be reduced. This makes it possible to easily and smoothly move the vehicle body 11 for dynamic secondary collision test on the

rails

31 and 32.

The vehicle 10 for dynamic secondary collision test according to the present embodiment includes the driving device 14 that is provided in the vehicle body 11 for dynamic secondary collision test and applies a driving force to the vehicle body 11 for dynamic secondary collision test, and the control device 40 applies a driving force to the vehicle body 11 for dynamic secondary collision test via the driving device 14 when the rolling member 13a is in a rollable state during the non-test period. Therefore, since the driving device 14 is provided in the vehicle body 11 for secondary collision dynamic test itself, it is not necessary to couple a roller chain, a winch, or the like to the vehicle body 11 for secondary collision dynamic test when the vehicle body 11 for secondary collision dynamic test moves during a non-test period. This can reduce the burden on the operator.

In the vehicle 10 for a dynamic secondary collision test according to the present embodiment, the drive device 14 includes the motor device 14a and the transmission member 14c coupled to the output shaft 14b of the motor device 14a and transmitting the rotation of the output shaft 14b, the transmission member 14c is arranged so as to be switchable between a transmission state in which the transmission member is in contact with the inner side surfaces 31b and 32b of the

rails

31 and 32 and a non-transmission state in which the transmission member 14c is separated from the inner side surfaces 31b and 32b of the

rails

31 and 32, and the control device 40 sets the transmission member 14c in the non-transmission state during the test and sets the transmission member 14c in the transmission state when the rolling member 13a is in the rollable state during the non-test. Therefore, since the transmission member 14c is in the non-transmission state during the test, the movement of the vehicle body 11 for secondary collision dynamic test during the test period can be prevented from being hindered.

The automobile collision simulation test apparatus 100 of the present invention includes the above-described secondary collision dynamic test vehicle 10 and a launcher 20 for performing an automobile collision simulation test by striking out the secondary collision dynamic test vehicle body 11 of the secondary collision dynamic test vehicle 10. Therefore, since the test is performed using the vehicle for secondary collision dynamic test 10 in which the movement of the vehicle body for secondary collision dynamic test 11 during the non-test period can be easily and smoothly performed, the load on the operator can be reduced, and the vehicle collision simulation test can be easily and smoothly performed.

The technical scope of the present invention is not limited to the above-described embodiments, and appropriate modifications can be added without departing from the spirit of the present invention. For example, in the above embodiment, the rolling device 13 is accommodated in the recess 12b provided in the bottom portion of the slider 12, but the present invention is not limited thereto.

Fig. 11 is a cross-sectional view showing a slider and a rolling device according to a modification. In the vehicle 110 for secondary collision dynamic test shown in fig. 11, no recess is formed in the bottom of the slider 112, and the rolling device 113 is attached to the side of the slider 112. The rolling device 113 includes a rolling member 113a, a receiving member 113b, a lifter 113c, and an attachment member 113d, and is attached to the slider 112 by the attachment member 113 d. The rolling device 113 is brought into a non-contact state by disposing the rolling member 113a above the bottom of the slider 112 by the lifter 113 c. The rolling device 113 is configured such that the rolling member 113a is disposed to be more open than the bottom of the slider 112 by the lifter 113c, thereby being in a rollable state. The rolling device 113 may be detachable from the slider 112. Thus, the slider 112 may be configured to include the rolling device 113 without any special design change.

Fig. 12 is a schematic configuration diagram of an automobile collision simulation test apparatus according to a modification. In the above embodiment, the case where the rolling member 13a (113a) and the receiving member 13b (113b) are moved downward by the lifter 13c (113c) because the rolling member is in the rollable state is exemplified as the case where the moving distance is set in advance, but the present invention is not limited to this. As shown in the automobile collision simulation test apparatus 200 of fig. 12, the traveling distance sensor S1 may be provided in the vehicle body 11 for secondary collision dynamic test of the vehicle 210 for secondary collision dynamic test. The movement distance sensor S1 detects the movement distance of the rolling member 13a and the receiving member 13b that are moved by the elevator 13c, and transmits the detection result to the control device 40. When receiving the detection result of the movement distance sensor S1, the elevator control unit 42 can perform feedback control of the elevator 13c based on the detection result.

In the above embodiment, the case where the operator inputs the stop timing through the input device 44 when stopping the driving of the motor device 14a is described as an example, but the present invention is not limited to this. As shown in the automobile collision simulation test apparatus 200 shown in fig. 12, the position detection sensor S2 may be provided in the secondary collision dynamic test vehicle body 11 of the secondary collision dynamic test vehicle 210. The position detection sensor S2 detects the position in the front-rear direction of the vehicle body 11 for the secondary collision dynamic test that is moving by the driving force of the motor device 14a, and transmits the detection result to the control device 40. Upon receiving the detection result of the position detection sensor S2, the motor control unit 43 can control the stop position of the motor device 14a based on the detection result. This enables the vehicle body 11 for the secondary collision dynamic test to be automatically moved.

In the above embodiment, the motor device 14a is provided as an example of the drive source of the drive device 14, but the present invention is not limited to this, and another drive source may be used. In the above embodiment, the transmission member 14c has been described as being switchable between the transmission state and the non-transmission state with respect to the inner side surfaces 31b and 32b of the

rails

31 and 32, but the present invention is not limited thereto, and the transmission member 14c may be switchable between the transmission state and the non-transmission state with respect to a position different from the inner side surfaces 31b and 32b in the

rails

31 and 32. In the above embodiment, the description has been given by taking the example in which the driving device 14 is provided in the vehicle body 11 for secondary collision dynamic test, but the present invention is not limited to this, and the driving device may be disposed at a position different from the vehicle body 11 for secondary collision dynamic test.

Description of the reference numerals

10, 110, 210 … vehicle for dynamic test of secondary collision

11 … vehicle body for secondary collision dynamic test

11a … bottom surface

12, 112 … slide block

12a … bottom surface

12b … concave part

13, 113 … rolling device

13a, 113a … rolling element

13b, 113b … receiving part

13c, 113c … elevator

14 … driving device

14a … motor device

14b … output shaft

14c … transfer member

14d … sliding mechanism

15 … test piece

16 … counterforce plate

20 … emitter

21 … device body

22 … piston rod

30 … track part

31, 32 … orbit

31a, 32a … upper surface

31b, 32b … medial side

33 … air cushion

34, 35 … connecting rail

36 … stop

40 … control device

41 … emitter control part

42 … Elevator control section

43 … Motor control part

44 … input device

100, 200 … automobile collision simulation test device

113d … mounting component

P1 … test start position

S1 … moving distance sensor

S2 … position detection sensor.

Claims

1. A vehicle collision simulation test carriage is provided with:

a carriage body that can carry a specimen and can move on a rail disposed in a horizontal front-rear direction;

a rolling member provided in the carriage body and capable of switching between a rollable state in which the rolling member is arranged rollably on the rail in a state in which the carriage body is lifted and a non-contact state in which the rolling member is arranged in a non-contact state with respect to the rail;

and a control device that sets the rolling member in the non-contact state during a test period of a vehicle collision simulation test in which the carriage body is struck by the launcher and moves while sliding on the rail, and sets the rolling member in the rollable state during movement in a non-test period different from the test period.

2. The bogie for vehicle collision simulation test according to claim 1,

a drive device provided in the carriage body and configured to apply a driving force in a front-rear direction to the carriage body,

in the non-test period, the control device applies the driving force to the carriage main body by the driving device in a case where the rolling member is in the rollable state.

3. The bogie for vehicle collision simulation test according to claim 2,

the drive device includes a motor device and a transmission member coupled to an output shaft of the motor device and transmitting rotation of the output shaft,

the transmission member is configured to be switchable between a transmission state in which the transmission member is in contact with a side surface of the rail and a non-transmission state in which the transmission member is separated from the side surface of the rail,

the control device sets the transmission member to the non-transmission state during the test, and sets the transmission member to the transmission state when the rolling member is in the rollable state during the non-test.

4. An automobile collision simulation test device is provided with:

the bogie for automobile collision simulation test according to any one of claims 1 to 3;

and a launching device for launching the trolley main body of the trolley for the automobile collision simulation test to carry out the automobile collision simulation test.