JP7249806B2 - Automobile collision simulation test trolley, automobile collision simulation test device, and automobile collision simulation test method - Google Patents

Description

TECHNICAL FIELD The present invention relates to an automobile collision simulation test truck, an automobile collision simulation test apparatus, and an automobile collision simulation test method.

As an automobile collision simulation test device, for example, there is one described in Patent Document 1 below. The automobile collision simulation test device described in Patent Document 1 includes a sled on which a test object can be mounted and which moves on a rail along a horizontal front-rear direction, a launcher capable of launching a piston toward the sled, It has

JP 2012-002699 A

In the automobile crash simulation test device described in Patent Document 1, when mounting the test object on the sled, it was necessary to attach a large number of bolts to fix the test object or the table to the sled. Similarly, when removing the specimen, it was necessary to remove a large number of bolts. Therefore, it takes time and effort to attach and detach the table.

The present invention has been made in view of the above. It is an object of the present invention to provide a test device and a method of simulating an automobile collision.

A vehicle collision simulation test trolley according to an aspect of the present invention is capable of mounting a table containing a magnetic material on which a test object is arranged, and a trolley body that can move on rails arranged in a predetermined direction along a horizontal plane. and an electromagnet unit provided on the carriage body for fixing the table by magnetic force.

Therefore, when the electromagnet section is operated, the table can be fixed to the carriage body by magnetic force, and when the electromagnet section is stopped, the fixed state of the table can be canceled. Therefore, it is possible to reduce labor and time consumption compared to tightening or unfastening a large number of bolts. As a result, the automobile collision simulation test can be efficiently performed.

Further, the carriage body has a plurality of linear portions extending in the predetermined direction in a direction orthogonal to the predetermined direction and along a horizontal plane, and the electromagnet portion is arranged in each of the plurality of linear portions in the predetermined direction. A plurality of them may be arranged side by side.

Therefore, by arranging a plurality of electromagnets aligned in a predetermined direction on each of the plurality of linear portions, the table can be securely fixed to the carriage body.

Further, the carriage body may be detachable from the table, and may have a clamp portion that holds the table in an attached state.

Therefore, the table can be more reliably fixed to the carriage body by the clamp portion.

Further, a hydraulic mechanism for switching attachment and detachment of the clamp section may be provided.

Therefore, since the attachment/detachment state of the clamping portion can be automatically switched by the hydraulic mechanism, work efficiency can be improved. Also, the table can be held with a large force by the hydraulic mechanism.

Further, the carriage body may have a magnetic shield portion covering a predetermined area different from the area where the table is arranged.

Therefore, a device such as a measuring device, which is susceptible to magnetic force, can be placed in the area covered by the magnetic shield.

An automobile collision simulation test apparatus according to an aspect of the present invention comprises rails arranged in a predetermined direction along a horizontal plane, the above-described automobile collision simulation test carriage capable of moving on the rails, and the automobile collision simulation test a launching device for launching the carriage in the predetermined direction; and controlling the launching device so as to launch the vehicle collision simulation test carriage in the predetermined direction based on a predetermined input; and a control device for activating the electromagnet part before a period of time and for stopping the operation of the electromagnet part after the truck body has been driven out.

Therefore, since the vehicle collision simulation test truck is used, the fixed state of the table can be switched by the electromagnet unit, so that the labor and time required for installing or removing the table can be reduced. As a result, the automobile collision simulation test can be efficiently performed.

The control device further comprises a detection unit for detecting a fixed state of the table, wherein the control device detects whether the detection result of the detection unit meets a predetermined standard during the period from the operation of the electromagnet unit to the timing of the start of hitting. It may be determined whether or not the condition is satisfied, and if it is determined that the predetermined criterion is not satisfied, the launching device may be controlled so as not to be launched.

Therefore, if the detection result of the detection unit does not meet the predetermined criteria, the launching device is not allowed to launch. .

An automobile collision simulation test method according to an aspect of the present invention is capable of moving on a rail arranged in a predetermined direction along a horizontal plane, and is equipped with a table on which a test object containing a magnetic material is arranged, and a magnetic force is applied to the table. on the rail, launching the car crash simulation test car placed on the rail in the predetermined direction with a launcher, and the car crash simulation test activating the electromagnet part for a predetermined period before the timing of starting the driving when the truck is driven out, and stopping the operation of the electromagnet part after the driving of the truck body is completed.

Therefore, since the vehicle collision simulation test truck is used, the fixed state of the table can be switched by the electromagnet unit, so that the labor and time required for installing or removing the table can be reduced. As a result, the automobile collision simulation test can be efficiently performed.

According to the aspect of the present invention, by reducing the labor and time required for attaching and detaching the table, it is possible to efficiently perform the automobile crash simulation test.

FIG. 1 is a schematic configuration diagram showing an example of an automobile collision simulation test apparatus according to this embodiment. FIG. 2 is a plan view showing an example of a sled. FIG. 3 is a side view showing an example of a sled. FIG. 4 is a flow chart showing the operation flow of the automobile collision simulation test device. FIG. 5 is a plan view showing a sled according to a modification. FIG. 6 is a side view showing a sled according to a modification. FIG. 7 is a side view showing another example of the sled according to the modification.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of an automobile collision simulation test truck, an automobile collision simulation test apparatus, and an automobile collision simulation test method according to the present invention will be described below with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, components in the following embodiments include components that can be easily replaced by those skilled in the art, or components that are substantially the same. In this embodiment, the direction in which the sled 10 is launched by the launching device 20 is defined as the rear of the front-rear direction (predetermined direction), and the opposite direction of the rear is defined as the front. In addition, the left and right directions when viewed from the rear to the front are defined as the left and right directions, the left direction is defined as the left direction, and the right direction is defined as the right direction. Also, the direction perpendicular to the horizontal plane is the vertical direction, the upper side is the upper side, and the lower side is the lower side.

FIG. 1 is a schematic configuration diagram showing an example of an automobile collision simulation test device 100 according to this embodiment. As shown in FIG. 1 , an automobile collision simulation test apparatus 100 includes a sled (car collision simulation test truck) 10 , a launcher 20 , a rail section 30 , and a control device 40 .

The sled 10 includes a sled body (carriage body) 11 , a slider 12 , an electromagnet portion 13 and a magnetic shield portion 14 . FIG. 2 is a plan view showing an example of the sled 10. FIG. FIG. 3 is a side view showing an example of the sled 10. FIG. As shown in FIGS. 2 and 3, the sled body 11 is a frame member having plate members with a predetermined thickness.

The sled main body 11 can mount a test piece 15 via a table 16 on its upper surface. The table 16 is formed using a material containing a magnetic substance. The table 16 is, for example, flat. A specimen 15 is placed on a table 16 . The specimen 15 is, for example, an automobile having only a skeleton, that is, a so-called body in white.

The thread body 11 has a base portion 11a, a linear portion 11b, and a connecting portion 11c. The base portion 11 a is provided at the front portion of the sled body 11 . The base portion 11a is longitudinal in the left-right direction. A measurement device placement area 11d is set on the upper surface of the base 11a. Measuring instruments such as strain sensors and amplifiers for detecting the state of the specimen 15 in the simulation test are arranged in the measuring instrument arrangement area 11d.

The linear portion 11b is provided in a state of extending rearward from the base portion 11a. Two linear portions 11b are arranged side by side in the left-right direction. The connecting portion 11c connects between the two straight portions 11b. The connecting portion 11c has, for example, a portion connecting the rear ends of the two straight portions 11b and a portion connecting the central portions in the front-rear direction.

The slider 12 is arranged on the bottom surface of the sled body 11 . The slider 12 moves while sliding on the two rails 31 of the rail portion 30 . For example, the sliders 12 are arranged one by one at positions corresponding to the four corners on the bottom surface of the sled body 11, but the present invention is not limited to this.

The electromagnet part 13 fixes the table 16 by magnetic force. The electromagnet portion 13 is arranged on the straight portion 11 b of the thread body 11 . A plurality of the electromagnet portions 13 are arranged in a line in the front-rear direction at predetermined intervals for each of the two straight portions 11b. The plurality of electromagnet portions 13 arranged in each linear portion 11b may be arranged at uniform intervals, or may be arranged at intervals different from each other. The electromagnet portion 13 may be arranged, for example, on the upper surface of the linear portion 11b. Alternatively, a concave portion may be formed in the upper surface of the linear portion 11b, and the electromagnet portion 13 may be arranged in the concave portion. A coil is arranged in each electromagnet part 13 . Magnetism is generated in each electromagnet unit 13 by applying a current to the coil. Due to this magnetism, the table 16 containing the magnetic material is fixed in a state of being attracted to the sled body 11 .

The magnetic shield part 14 has, for example, a rectangular box shape and is formed using a magnetic alloy such as a permalloy material. The measuring equipment arranged in the measuring equipment arrangement area 11 d is covered with the magnetic shield section 14 . The magnetic shield section 14 suppresses the influence of the magnetism generated by the electromagnet section 13, for example, from reaching the measuring device.

The launch device 20 has a device body 21 and a piston rod 22 . The device 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 driving the device body 21 and imparts rearward acceleration to the sled body 11 .

The rail portion 30 has the two rails 31 described above. The rail 31 guides the sled body 11 . Rail 31 is connected to air pallet 33 . The air pallet 33 has connecting rails 34 respectively connected to the rails 31 . The air pallet 33 can be transported to and from the outside while the sled body 11 is placed on the connection rails 34 . A stopper 36 is arranged behind the air pallet 33 . The stopper 36 restricts the rearward movement of the sled body 11 .

A sled moving device 32 is arranged between the two rails 31 . The sled moving device 32 has a chain 32a and a chain drive section 32b. The chain 32 a is wound between the front end and the rear end of the rail 31 . The chain 32a can be connected with the sled 10, for example, via the connecting part 17. As shown in FIG. The chain 32a is rotated by the chain driving portion 32b while being connected to the sled 10, so that the sled 10 can be moved in the rotational direction.

A controller 40 controls the operation of the sled 10 and launcher 20 described above. The control device 40 has a launcher control section 41 , a sled control section 42 and a movement control section 43 . The launcher control section 41 controls the operation of the device body 21 of the launcher 20 . The thread control unit 42 controls operations of the electromagnet unit 13 . The movement control unit 43 controls the operation of the sled movement device 32 . An input device 44 is connected to the control device 40, for example, for an operator to operate the automobile collision simulation test device 100 and to input information.

Next, the operation of the automobile collision simulation test device 100 configured as described above will be described. FIG. 4 is a flow chart showing the operation flow of the automobile collision simulation test device 100. As shown in FIG. First, the table 16 on which the specimen 15 is arranged is mounted on the sled 10, and in this state, the sled 10 is arranged on the rail 31 from the air pallet 33 (step S10). Then, the moving device 32 moves the sled 10 along the rail 31 to the test start position P1 (step S20). At the test start position P1, the table 16 is positioned and various measuring instruments to be arranged in the measuring instrument arrangement area 11d are prepared.

After that, the control device 40 waits until the operator inputs an instruction to start the test to the input device 44 (steps S30, No in S30). When an instruction to start the test is input to the input device 44 (Yes in step S30), the launching device control unit 41 causes the launching device 20 to perform launch determination processing to determine whether or not to launch the sled 10. FIG. In the launch determination process, for example, it is determined whether or not an event or the like that hinders normal launch has occurred in each part of the automobile collision simulation test device 100 . The launch determination process is performed for several seconds, for example. During this launch determination process, the thread control unit 42 operates the electromagnet unit 13 (step S40). By step S40, magnetism is generated by the electromagnet part 13 until the sled 10 starts to be driven, and the table 16 is fixed to the sled body 11 by the magnetic force. Therefore, the operator can fix the table 16 to the sled 10 without attaching bolts or the like.

When the launch determination period is completed and the launch start timing has arrived, the launcher control unit 41 controls the device body 21 of the launcher 20 to accelerate backward the sled 10 placed at the test start position P1. , the thread 10 is launched (step S50). The sled 10 moves backward while the slider 12 is lifted from the rail 31 by the brake piston of the brake device and the rail 31 is clamped from above and below by the brake pad. The sled body 11 gradually slows down and stops due to friction between the brake pad and the rail 31 .

The thread control unit 42 determines whether or not the thread 10 is stopped after the thread 10 is launched (step S60, No in step S60). This determination can be made, for example, by arranging an acceleration sensor or speed sensor (not shown) on the thread 10 and based on the detection result of the sensor. When the thread control unit 42 determines that the thread 10 has stopped (Yes in step S60), it stops the operation of the electromagnet unit 13 (step S70). By this operation, the magnetism of the electromagnet portion 13 is reduced, and the fixation of the table 16 is released. After the table 16 is unlocked, the operator can remove the table 16 from the sled 10 without removing bolts or the like.

As described above, the sled 10 according to the present embodiment can mount the table 16 containing a magnetic material and on which the specimen is arranged. A main body 11 and an electromagnet part 13 provided in the sled main body 11 for fixing a table 16 by magnetic force.

Therefore, when the electromagnet part 13 is operated, the table 16 can be fixed to the sled body 11 by magnetic force, and when the electromagnet part 13 is stopped, the fixed state of the table 16 can be canceled. Therefore, it is possible to reduce labor and time consumption compared to tightening or unfastening a large number of bolts. As a result, the automobile collision simulation test can be efficiently performed.

In the thread 10 according to the present embodiment, the thread main body 11 has a plurality of straight portions 11b extending in a predetermined direction in a direction perpendicular to the predetermined direction and along the horizontal plane, and the electromagnet portion 13 is arranged between the straight portions 11b. A plurality of them are arranged in a state of being aligned in a predetermined direction. Therefore, by arranging a plurality of electromagnet portions 13 in a predetermined direction on each of the plurality of straight portions 11b, the table 16 can be securely fixed by the sled body 11. As shown in FIG.

In the sled 10 according to the present embodiment, the sled main body 11 has a magnetic shield portion that covers a measuring device placement area 11d that is different from the area where the table 16 is placed. Therefore, a device such as a measuring device, which is susceptible to magnetic force, can be placed in the area covered by the magnetic shield.

An automobile collision simulation test apparatus 100 according to the present embodiment includes rails 31 arranged in a predetermined direction along a horizontal plane, the above-described sled 10 that can move on the rails 31, and a launcher that shoots out the sled 10 in a predetermined direction. 20, the launching device 20 is controlled to launch the sled 10 in a specified direction based on a specified input, and the electromagnet part 13 is actuated a specified period before the start timing of launching by the launching device 20 so that the sled body 11 is ejected. and a control device 40 for stopping the operation of the electromagnet part 13 after the hitting is completed.

The automobile crash simulation test method according to the aspect of the present invention is capable of moving on rails 31 arranged in a predetermined direction along a horizontal plane. A carriage having an electromagnet part 13 for fixing a table 16 is arranged on a rail 31, a sled 10 arranged on the rail 31 is launched in a predetermined direction by a launcher 20, and the sled 10 is launched: It includes operating the electromagnet part 13 for a predetermined period before the timing of starting striking and stopping the operation of the electromagnet part 13 after the striking of the sled body 11 is completed.

Therefore, since the sled 10 that can switch the fixing state of the table 16 by the electromagnet part 13 is used, it is possible to reduce the labor and consumption time required for installing or removing the table 16 . As a result, the automobile collision simulation test can be efficiently performed.

The technical scope of the present invention is not limited to the above embodiments, and modifications can be made as appropriate without departing from the scope of the present invention. 5 and 6 are diagrams showing an example of a thread 10A according to a modification. 5 is a plan view, and FIG. 6 is a side view. The sled 10A may have a clamping portion 17, as shown in FIGS.

The clamp part 17 is arranged on the upper surface of the thread body 11 . The clamp part 17 is detachable from the table 16 and holds the table 16 while attached to the table 16 . The clamp part 17 may be switchable between the mounted state and the unmounted state manually by an operator, for example. Moreover, the clamp part 17 may be switchable between the mounted state and the unmounted state under the control of the control device 40 . By attaching the clamp portion 17 to the table 16 , the table 16 is fixed to the sled body 11 by the magnetic force of the electromagnet portion 13 and the gripping force of the clamp portion 17 . Further, the clamping portion 17 can suppress the displacement of the table 16 in the horizontal direction. Therefore, the table 16 can be more securely fixed to the sled body 11 . Furthermore, the table 16 can be fixed by the clamp portion 17 even when the power supply to the electromagnet portion 13 is cut off, for example.

FIG. 7 is a diagram showing an example of a thread 10B according to a modification. As shown in FIG. 7, the clamp part 17 may be switchable between attachment and detachment by a hydraulic mechanism 18, for example. The hydraulic mechanism 18 has a hydraulic drive source 18a and a hydraulic transmission portion 18b. The hydraulic drive source 18a can be controlled by the controller 40, for example. In this configuration, the attachment/detachment state of the clamp portion 17 can be automatically switched by the hydraulic mechanism 18, so that work efficiency can be improved. Also, the table 16 can be held with a large force by the hydraulic mechanism 18 .

Further, in the above-described embodiment, a detection section may be provided to detect the fixed state of the table 16 by the electromagnet section 13 . Examples of such detection units include magnetic sensors. In this case, the magnetism from the electromagnet portion 13 can be detected by arranging the magnetic sensor on the sled body 11 . Alternatively, the thread control unit 42 may detect the current supplied to the electromagnet unit 13 and estimate the timing of occurrence in the electromagnet unit 13 based on the detected current value. The fixed state of the table 16 can be estimated based on the intensity of magnetism generated from the electromagnet section 13, for example. That is, it can be considered that the stronger the magnetism generated from the electromagnet part 13, the stronger the table 16 is fixed. Further, it can be considered that the weaker the magnetism generated from the electromagnet part 13, the weaker the table 16 is fixed.

Therefore, the control device 40 determines whether or not the detection result of the detection unit satisfies a predetermined criterion during the period in which the launch determination is performed. In this case, the control device 40 determines whether or not the strength of the magnetism generated by the electromagnet section 13 is equal to or greater than a predetermined threshold. If the magnetic intensity is equal to or greater than a predetermined threshold, it is determined that the predetermined criterion is met. On the other hand, the control device 40 determines that the predetermined criterion is not satisfied when the magnetic strength is less than the predetermined threshold. When the control device 40 determines that the predetermined criteria are not satisfied, the control device 40 controls the launching device 20 not to launch. By this operation, for example, when the fixed state of the table 16 is insufficient, it is possible to prevent the shot from being performed.

Further, in the above-described embodiment, an example in which the table 16 is fixed to the sled body 11 using the electromagnet portion 13 has been described, but the present invention is not limited to this. For example, the table 16 may be fixed to the sled body 11 with bolts instead of or in addition to the electromagnet part 13 . In this case, the number of bolts can be reduced compared to the case where the table 16 is entirely fixed with bolts, so that the labor and time required for attaching and detaching the table can be reduced.

Further, in the above embodiment, the case where the operation of the electromagnet unit 13 is stopped when the thread control unit 42 determines that the sled 10 has been struck and stopped has been described as an example, but the present invention is limited to this. not. For example, when the sled 10 stops, the operator may manually stop the operation of the electromagnet part 13 .

10, 10A, 10B Thread 11 Thread body 11a Base portion 11b Straight portion 11c Connection portion 11d Measurement equipment arrangement area 12 Slider 13 Electromagnet portion 14 Magnetic shield portion 15 Specimen 16 Table 17 Clamp portion 18 Hydraulic mechanism 18a Hydraulic drive source 18b Hydraulic transmission portion 20 launching device 21 device body 22 piston rod 30 rail portion 31 rail 32 sled moving device, moving device 33 air pallet 34 connection rail 36 stopper 40 control device 41 launching device control portion 42 sled control portion 43 movement control portion 44 input device 100 automobile Collision simulation test device P1 Test start position

Claims (6)

a rectangular plate-like table containing a magnetic material on which a specimen can be placed ;
a carriage body on which the table can be mounted and which can move on rails arranged in a predetermined direction along a horizontal plane;
an electromagnet unit provided on the carriage body and fixing the table by magnetic force ,
The bogie body has two linear portions extending in the predetermined direction spaced apart in a direction orthogonal to the predetermined direction and along a horizontal plane,
a plurality of the electromagnet portions arranged in the predetermined direction on each of the two linear portions;
The carriage body is detachable from the table, and has a clamp portion that holds the table in an attached state,
The table is placed on the carriage body with two opposing sides along the two straight lines,
The clamping part is arranged at a position to grip a part corresponding to two sides different from the two sides along the straight part among the four sides of the table.
Truck for automobile crash simulation test. The truck for automobile collision simulation test according to claim 1 , further comprising a hydraulic mechanism for switching attachment and detachment of the clamp part. 3. The truck for automobile collision simulation test according to claim 1 , wherein the truck main body has a magnetic shield part covering a predetermined area different from the area where the table is arranged. rails arranged in a predetermined direction along a horizontal plane;
4. The carriage for automobile collision simulation test according to any one of claims 1 to 3 , which is movable on the rail;
a launching device for launching the automobile collision simulation test truck in the predetermined direction;
controlling the launching device so as to launch the automobile collision simulation test truck in the prescribed direction based on a prescribed input, operating the electromagnet unit for a prescribed period of time prior to the start timing of launching by the launching device; and a control device for stopping the operation of the electromagnet unit after the launch of the bogie body is completed. Further comprising a detection unit for detecting a fixed state of the table,
The control device determines whether or not the detection result of the detection unit satisfies a predetermined criterion in a period from when the electromagnet unit is operated until the timing of the launch start, and determines whether the predetermined criterion is satisfied. 5. The automobile collision simulation test device according to claim 4 , wherein, when determined, control is performed so that the launching device does not launch. arranging the automobile collision simulation test trolley according to any one of claims 1 to 4 on the rail;
launching the automobile collision simulation test truck placed on the rail in the predetermined direction by a launcher;
When the automobile collision simulation test truck is launched, the electromagnet unit is operated during a launch judgment period performed before the start of the launch, and the operation of the electromagnet unit is stopped after the automobile collision simulation test vehicle has completed launching. A vehicle crash simulation test method including and .

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