JP4466543B2 - Evaluation device for in-vehicle collision mitigation system - Google Patents

Description

  The present invention relates to an evaluation apparatus for an in-vehicle collision mitigation system, and more particularly to an apparatus that can evaluate the in-vehicle collision mitigation system at a low cost.

If the sensor detects an obstacle ahead of the vehicle and predicts the possibility of a collision between the obstacle and the vehicle, and determines that there is a danger of a collision, it performs a process to reduce the shock of the collision. Many on-vehicle collision mitigation systems have been proposed (for example, Patent Document 1). For example, the in-vehicle collision mitigation system notifies the driver of the danger of a collision or automatically performs deceleration or stop control as a process when it is determined that there is a danger of a collision.
JP 2004-110394 A

  When developing an in-vehicle collision mitigation system, it is necessary to evaluate whether the system achieves the intended purpose. If an actual vehicle is used as a collided object in this evaluation, both the vehicle on which the collision mitigation system is mounted and the collided vehicle are damaged each time a collision occurs. There is a problem that it becomes necessary.

  The present invention has been made based on this circumstance, and the object of the present invention is to reduce the collision of a vehicle equipped with a collision mitigation system and a collision object, and to enable repeated evaluation by enabling the repeated evaluation. It is to provide a system evaluation apparatus.

In order to achieve the object, the invention according to claim 1 supports a target member that can collide with a vehicle on which a collision mitigation system is mounted, and supports the target member so that the target member can turn to the side opposite to the collision side of the vehicle. and a rotation mechanism an evaluation apparatus including car mounting collision mitigation system, the rotating mechanism, the horizontal shaft around times for rotating said target members about a horizontal axis perpendicular with respect to the collision direction of the vehicle It is a moving mechanism, and further includes a vertical axis rotation mechanism that is connected to the target member and allows the target member to rotate about the vertical axis.

  When the vehicle to be evaluated collides with the target member of this evaluation apparatus, the target member is rotated to the opposite side of the vehicle by the rotation mechanism, so that the impact at the time of the collision is reduced. Therefore, since damage is reduced in both the vehicle and the evaluation device, repeated evaluation is possible.

In addition , even if a force around the vertical axis is applied to the target member due to a vehicle collision, the target member is rotated about the vertical axis by the vertical axis rotation mechanism, so that the vehicle to be evaluated and the evaluation apparatus are damaged. Is further reduced.

Also, the evaluation apparatus of the in-vehicle collision mitigation system according to claim 1, as claimed in claim 2, it is more preferable that the target member is biased to the opposite side of the vehicle collision side by the urging member .

  In this way, when the vehicle collides, the state where the vehicle and the target member are colliding ends early, so that the impact at the time of the collision is further reduced. Therefore, damage is further reduced in both the vehicle to be evaluated and the evaluation device.

Also, the evaluation apparatus of the in-vehicle collision mitigation system according to claim 1 or 2, as claimed in claim 3, wherein a reverse rotation blocking device that prevents the target member is rotated to the initial position direction by its own weight Furthermore, it is preferable to include.

  In this way, after the vehicle and the target member collide and the target member rotates to the opposite side of the vehicle, it is prevented from rotating again in the reverse direction due to its own weight and re-collision with the vehicle. Is done.

More preferably, the on-board collision mitigation system evaluation device according to any one of claims 1 to 3 is arranged on the opposite side of the target member from the vehicle collision side as in claim 4 , An impact absorbing device that is caused to collide with the target member by the rotation of the member is further provided.

  In this case, when the target member collides with the impact absorbing device by the target mechanism rotating to the opposite side of the vehicle by the rotating mechanism, the impact absorbing device absorbs the rotational energy of the target member. Is done. Therefore, damage to the evaluation device is further reduced.

The on-vehicle collision mitigation system evaluation device according to any one of claims 1 to 3 is characterized in that, as in claim 5, the vertical axis around the vehicle and the target member that is applied to the target member by the collision between the vehicle and the target member. It is preferable that the apparatus further comprises a rotation energy reducing device around the vertical axis for reducing the rotation energy.

  In this way, when the target member is rotated around the vertical axis due to a vehicle collision, the rotational energy around the vertical axis can be reduced by the rotation energy reducing device around the vertical axis. The rotation around the axis ends early. Therefore, it is suppressed that the target member rotates around the vertical axis and collides with another member, thereby damaging the target member.

As the vertical shaft about a rotational energy reduction device as claimed in claim 6, there is a brake device to decrease by converting the rotational energy into frictional heat. Further, the rotational energy may be reduced by electromagnetic force, or the rotational energy may be reduced by collision with the target member.

The invention according to claim 7 is the evaluation apparatus for the on-vehicle collision mitigation system according to any one of claims 1 to 6 , wherein the target member is a first rod-like member that is caused to collide with the vehicle, and the first rod-like member. And a second rod-shaped member that connects the rotating mechanism.

  As described above, when the target member is constituted by the rod-shaped member, the weight of the target member is reduced and the moment of inertia is reduced, so that the impact applied from one to the other during the collision between the vehicle and the target member is reduced. Therefore, both damages due to the collision are further reduced.

According to an eighth aspect of the present invention, in the on-board collision mitigation system evaluation device according to any one of the first to seventh aspects, a gantry fixed to an upper portion of a movable vehicle, the gantry, and the rotation mechanism And a connecting arm that connects the two.

  In this way, if the gantry and the connecting arm are provided, the evaluation apparatus can be fixed to a movable vehicle, and the target member and the vehicle equipped with the in-vehicle collision mitigation system collide with each other while the vehicle is running. By doing so, it is possible to evaluate the operation of the in-vehicle collision mitigation system when it collides with another moving object such as another traveling vehicle while reducing damage to the collision vehicle and the evaluation device.

Moreover, as for the evaluation apparatus of the vehicle-mounted collision mitigation system of Claim 8 , as for Claim 9 , it is preferable that the said mount frame and the said connection arm are connected via the impact absorption mechanism. In this way, when the vehicle and the target member collide, the impact transmitted from the target member to the gantry via the rotation mechanism and the connecting arm is reduced, so that damage to the gantry and the connecting arm can be suppressed. .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1, 2, and 3 are a front view, a plan view, and a right side view, respectively, of an evaluation apparatus (hereinafter simply referred to as an evaluation apparatus) 10 for an in-vehicle collision mitigation system.

  As shown in FIG. 1, in the evaluation apparatus 10 of the present embodiment, the target member 20 includes a horizontal bar 21 that collides with an evaluation vehicle (not shown) equipped with a collision mitigation system, and a longitudinal center of the horizontal bar 21. A vertical pipe 22 protruding upward in the vertical direction and a bar 24 connected to the vertical pipe 22 through a pipe attachment 23 so that their axes coincide with each other are provided.

  Reflecting members 25 for efficiently reflecting signal waves (radio waves or light) emitted from the evaluation vehicle are provided at both longitudinal ends of the side surface of the horizontal bar 21 facing the evaluation vehicle. In addition, the cushion sheet for reducing the impact by the collision with the evaluation vehicle is attached to the portion of the horizontal bar 21 where the reflecting member 25 is not provided.

  The horizontal bar 21 corresponds to a first bar member, and the vertical pipe 22 and the bar 24 correspond to a second bar member. The target member 20 also includes a pair of reinforcing bars 26. In each of the pair of reinforcing bars 26, one end is fixed to the horizontal bar 21 and the other end is fixed to the vertical pipe 22.

  The target member 20 configured as described above is connected to the rotation mechanism unit 40 by the shaft attachment 30. 4 is an enlarged view of the rotation mechanism 40 of FIG. 1, and FIG. 5 is a right side view of FIG.

  As shown in FIG. 4, a bar 24 is inserted into the lower end of the shaft attachment 30. The upper part of the shaft attachment 30 is accommodated in a notch 41 </ b> A formed in the lower part of the shaft 41. This notch 41A opens in the right direction and the downward direction in FIG.

  The hinge pin 42 penetrates the shaft 41 and the shaft attachment 30 in a direction perpendicular to the axial center thereof. As described above, the shaft attachment 30 is fixed to the shaft 41 by the hinge pin 42, and the notch 41A is formed in the shaft 41, whereby the shaft attachment 30 and the target member 20 connected thereto are arranged in the notch 41A. It is rotatable in the opening direction (right direction in FIG. 5). The hinge pin 42, the shaft 41, and the shaft attachment 30 constitute a horizontal axis turning mechanism 40A.

  The shaft 41 is formed with a pair of through holes 41 </ b> B penetrating in the axis crossing direction (horizontal direction) at the lower portion thereof. Further, the shaft attachment 30 is formed with a recess 30A at a position facing the pair of through holes 41B. A shaft lock 44 is fitted into the through hole 41 </ b> B and the recess 30 </ b> A by being held by a cylindrical shaft lock holder 43.

  The shaft lock 44 is urged in the direction of the recess 30 </ b> A by a coil spring 45 housed in the shaft lock holder 43. With this structure, the shaft attachment 30 and the target member 20 connected to the shaft attachment 30 are prevented from being shaken by a light force (for example, a wind force or vibration from a moving vehicle 85 described later).

  Further, a screw plug 46 is fitted into the end of the shaft lock holder 43 opposite to the shaft lock 44 in order to prevent the coil spring 45 from falling off the shaft lock holder 43.

  Further, a stepped portion 41C is formed on the shaft 41, and a brake disc 47 is fitted on the outer peripheral side of the stepped portion 41C. The upper side of the stepped portion 41C of the shaft 41 has a smaller diameter than the lower side of the stepped portion 41C, and the upper portion of the shaft 41 is fitted into the bearing holder 48 as shown in FIG. . The brake disc 47 is fixed to the shaft 41 with screws 49.

  A bearing holder set 50 is fitted in the center of the bearing holder 48. The bearing holder set 50 includes two bearings 51 and 52 arranged in the axial direction, and a flange portion 50A protruding outward in the radial direction is formed at the upper end of the bearing holder set 50. The bolts 53 penetrate the flanges 50 </ b> A in the axial direction and are screwed into the bearing holders 48, so that the bearing holder set 50 is fixed to the bearing holders 48.

  The upper portion of the shaft 41 penetrates the inner peripheral side of the bearing holder set 51 and protrudes above the upper surface of the bearing holder set 50. An annular set collar 54 is fixed by a bolt 55 on the outer peripheral side of the protruding portion. As the set collar 54 is fixed, the shaft 41 cannot move downward. Moreover, since the diameter of the upper part of the shaft 41 is a diameter in sliding contact with the bearings 51 and 52, the shaft 41 and the target member 20 connected thereto via the shaft attachment 30 rotate to both sides in the horizontal direction. It is possible. The shaft 41 and the bearing holder set 50 that rotatably holds the shaft 41 constitute a vertical axis rotation mechanism 40B.

  A pair of pad holding holes 56 penetrating in the vertical direction are formed in the outer edge portion of the bearing holder 48. An upper pad 57 is fitted into the pad holding hole 56. The lower end portion of the upper pad 57 protrudes from the bearing holder 48, and the upper end portion of the upper pad 57 has a larger diameter than the other portions, and the lower portion of the pad holding hole 56 is the pad holding hole 56. The upper pad 57 is prevented from dropping downward from the pad holding hole 56 because the diameter of the upper pad 57 is reduced.

  A coil spring 58 is inserted on the upper side of the upper pad 57 in the pad holding hole 56, and a screw plug 59 is fitted on the upper side of the coil spring 58 in the pad holding hole 56. As a result, the upper pad 57 is always biased toward the brake disc 47 side.

  Further, a lower pad 60 is disposed on the opposite side of the brake disk 47 from the upper pad 57 so as to face the upper pad 57. The lower pad 60 has a lower end portion fitted in a recess 62 </ b> A formed in the pad holder 62, and is integrated with the pad holder 62 by a bolt 63.

  The pad holder 62 is a member having an L-shaped vertical cross section, and is fixed to the bearing holder 48 by four bolts 64. A flat aluminum frame plate 65 is fixed to the upper surface of the bearing holder 48 by bolts (not shown). The upper and lower pads 57 and 60, the brake disc 47, the coil spring 58, the screw plug 59, and the pad holder 62 constitute a brake device 61.

  FIG. 6 is a plan view of the brake disc 47. The brake disc 47 is a disk-shaped member, and the shaft 41 is fitted into the inner peripheral hole 47A, and a screw 49 is inserted into a screw hole 47B formed adjacent to the inner peripheral hole 47A. In addition, at the outer peripheral edge of the brake disc 47, elongated holes 47C that are curved along the outer peripheral arc and penetrate in the thickness direction are formed at three locations in the circumferential direction. The diameters of the upper and lower pads 57 and 60 are set to fit into the elongated hole 47C, and the brake disk 47 rotates from the state in which the upper and lower pads 57 and 60 are fitted into the elongated hole 47C. Since a relatively large force is required when 57 and 60 come out of the long hole 47C, this structure makes it easier for the brake device 61 to stop the rotation of the target member 20.

  Returning to FIG. 3, one end in the longitudinal direction of a pair of rectangular flat bar frames 70 is fixed to a pair of parallel side surfaces of the shaft 41. The bar frame 70 protrudes from the shaft 41 to the side where the horizontal cutout 41A is open.

  The bar frame 70 is formed integrally with the absorber frame 72. The absorber frame 72 has a base connected to a longitudinal direction distal end portion of the bar frame 70 and is located on the upper side of the bar frame 70, and has a shape that is directed upward toward the distal end side.

  FIG. 7 is a schematic perspective view showing the shape of the absorber frame 72. As shown in FIG. 7, the absorber frame 72 has a longitudinal shape with an opening on the lower side, and is composed of a longitudinal rectangular substrate portion 72A and a pair of side plate portions 72B that are directed downward from a pair of long sides of the substrate portion 72A. ing.

  A pair of stopper stays 73 are fixed to the tip of the bar frame 70. The stopper stay 73 has a connecting portion 73A that protrudes to the opposite side of the other stopper stay 73 at the tip of the bar frame 70, and a support portion 73B that extends from the connecting portion 73A to the opposite side of the base portion of the bar frame 70. ing. A stopper 75 is rotatably connected to the connecting portion 73 </ b> A of the stopper stay 73 by a pin 74.

  The stopper 75 is a longitudinal plate-like member, and the tip end portion has a right triangle shape with the lower side position becoming the upper side toward the tip end. One end of the coil spring 76 is fixed to the tip of the stopper 75, and the other end is fixed to the tip of the bar frame 70. Due to the elastic force of the coil spring 76, the stopper 75 is urged in the direction in which the tip portion is directed downward. However, in the state where the stopper 75 is horizontal (the state shown in FIG. 7), the base portion of the stopper 75 is supported by the support portion 73B of the stopper stay 73, whereby the stopper 75 is further rotated. It becomes impossible.

  As shown in FIG. 7, when the bar 24 is positioned on the upper surface of the stopper 75, the bar 24 is also prevented from rotating downward. Accordingly, the bar 24 is prevented from rotating downward by the stopper 75 and the stopper stay 73, and the stopper 75 and the stopper stay 73 function as a reverse rotation prevention device.

  Returning to FIG. 3, five shock absorbers 77 functioning as shock absorbers are fixed to the base plate portion 72 </ b> A of the absorber frame 72 in a straight line by bolts. These five shock absorbers 77 have a cylindrical shape, and their lower portions are housed in an absorber frame 72. Bars 24 collide with the lower surfaces of these shock absorbers 77, and the impact at the time of collision is absorbed by hydraulic pressure or air pressure. A roller 78 is attached to the tip of the absorber frame 72.

  The aluminum frame plate 65 located at the uppermost part of the rotation mechanism unit 40 is fixed to an aluminum connection arm 80 with bolts. A prismatic aluminum frame 81 extending upward from the distal end portion is fixed to the distal end portion of the connecting arm 80. An eye bolt 83 is attached to the tip of the aluminum frame 81 via a mounting plate 82.

  A rubber belt 84 having one end fixed to the eyebolt 83 is stretched around a roller 78, and the other end of the rubber belt 84 is attached to the horizontal bar 21. Therefore, although the target member 20 is urged counterclockwise in FIG. 3 by the rubber belt 84, the target member 20 stops at a position where the bar 24 becomes vertical by its own weight. This rubber belt 84 functions as an urging member.

  The connection arm 80 is a rod-shaped member, and as shown in FIGS. 1 and 2, the other end of the connection arm 80 is connected to the target member 20 of the gantry 86 fixed to the moving vehicle 85 for moving the evaluation device 10. Extends to the opposite end. Further, a reinforcing arm 87 is disposed below the connecting arm 80.

  The reinforcing arm 87 has the same material and the same cross-sectional shape as the connecting arm 80, and differs only in length. One end of the reinforcing arm 87 is matched with the end of the connecting arm 80 on the moving vehicle 85 side. The pair of plates 88 are fixed to both side surfaces of the reinforcing arm 87 and the connecting arm 80 at the end of the reinforcing arm 87 on the target member 20 side. As a result, one end of the reinforcing arm 87 is integrated with the connecting arm 80.

  The other end of the reinforcing arm 87 is placed on a rectangular plate 90. Further, five small plates 91 are placed at equal intervals on the upper surface of the connecting arm 80 above the plate 90. The small plate 91 and the plate 90 are connected by a bar 92. With this structure, the reinforcing arm 87 and the connecting arm 80 are integrally held.

  The plate 90 is fixed to a pair of parallel sides of an aluminum square frame member 93 by bolts. Reinforcing plates 94 are fixed to the four corners of the square frame member 93. The square frame member 93 is connected to the gantry 86 via a floating mechanism 100 in which four corners function as an impact absorbing mechanism.

  8A and 8B are enlarged views of the floating mechanism 100, where FIG. 8A is a front view and FIG. 8B is a plan view. The floating mechanism 100 includes a spring stay 101, a damper plate 102, a bolt 103, coil springs 104 and 105, a washer 106, and the like.

  The spring stay 101 is fixed to the gantry 86 with bolts 107, and a cylindrical wide hole 101A into which the coil spring 104 is fitted is formed on the upper surface of the spring stay 101, and further, the wide hole 101A. A deep hole 101B is formed at the center of. The tip of the bolt 103 is screwed into the deep hole 101B.

  The damper plate 102 is placed on the upper side of the coil spring 104 and is fixed to the square frame member 93 by four bolts 108. Further, the damper plate 102 has a through hole 102A through which the bolt 103 is inserted, and an annular recess 102B in which the axial center is shared with the through hole 102A and the coil spring 105 is fitted. Yes. The diameter of the through hole 102A is larger than the diameter of the bolt 103, and the damper plate 102 can be moved relative to the gantry 86 in the horizontal direction by a gap generated by the difference between the diameters of the bolts 103A. Yes.

  A washer 106 is placed on the upper surface of the coil spring 105, and the bolt 103 passes through the washer 106, the coil spring 105, the damper plate 102, and the coil spring 104 and is fixed to the spring stay 101.

  Since the four corners are connected to the gantry 86 through the floating mechanism 100 configured in this way, the square frame member 93 can move a minute amount in an arbitrary horizontal direction, and the coil spring 104 can be moved. , 105 determines the position of the stationary state.

  Next, the operation of the evaluation apparatus 10 configured as described above will be described. First, as an initial state, the horizontal bar 21 is in parallel with the connecting arm 80. At this time, the direction of the bar 24 is vertical due to the weight of the horizontal bar 21 and the shaft lock 44. The moving vehicle 85 may be stopped, or may be moving forward or backward at a predetermined speed.

  Next, an evaluation vehicle (not shown) equipped with a collision mitigation system is caused to travel toward the target member 20 from the side facing the reflecting member 25. When the evaluation vehicle and the horizontal bar 21 collide, the target member 20 is rotated in a direction away from the evaluation vehicle with the hinge pin 42 as a fulcrum by the impact force of the collision. Further, since the target member 20 is also rotated by the elastic force of the rubber belt 84, the collision state between the horizontal bar 20 and the evaluation vehicle is quickly eliminated.

  When the force applied to the horizontal bar 21 from the evaluation vehicle in this collision is only in the direction perpendicular to the connecting arm 80, only the horizontal axis turning mechanism 40A operates, and the target member 20 is It can be rotated only around the hinge pin 42.

However, when the force applied to the horizontal bar 21 from the evaluation vehicle in the event of a collision includes a component parallel to the connecting arm 80, the vertical axis rotation mechanism 40B in addition to the horizontal axis rotation mechanism 40A. The target member 20 is also rotated around the shaft 41 (see the two-dot chain line in FIG. 2).
When the impact force is large to some extent, the target member 20 jumps up the stopper 75 and the shock absorber 77 and the bar 24 collide with each other. Thereby, the rotational energy around the hinge pin 42 applied to the target member 20 from the evaluation vehicle is absorbed. Therefore, this time, the target member 20 starts to rotate in the opposite direction around the hinge pin 42 due to its own weight. However, the horizontal bar 21 descends and collides with the evaluation vehicle again when the bar 24 collides with the upper surface of the stopper 75. Is prevented.

  Further, the rotational energy around the axis of the shaft 41 applied from the vehicle to the target member 20 is converted into heat energy by the brake device 61 and consumed, so that the rotation around the axis of the shaft 41 is relatively comparative. Exit quickly.

  A part of the impact force caused by the collision between the evaluation vehicle and the target member 20 is also transmitted to the gantry 86 via the connecting arm 80, but the floating mechanism 100 is interposed between the linking arm 80 and the gantry 86. Since the impact is absorbed by the floating mechanism 100, damage to the gantry 86 and the connecting arm 80 due to the impact force being transmitted to the gantry 86 is also suppressed.

  As described above, according to this embodiment described above, when the vehicle to be evaluated collides with the target member 20, the target member 20 is rotated to the opposite side of the evaluation vehicle by the horizontal axis rotation mechanism 40A. Therefore, the impact at the time of collision is reduced. Therefore, since damage is reduced in both the evaluation vehicle and the evaluation apparatus 10, repeated evaluation is possible.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the above-mentioned embodiment, The following embodiment is also contained in the technical scope of this invention, and also the summary other than the following is also included. Various modifications can be made without departing from the scope.

  For example, although the target member 20 of the above-described embodiment is composed of a plurality of rod-shaped members, the target member may have other shapes such as a plate shape.

  Further, the evaluation device 10 of the above-described embodiment includes the vertical axis rotation mechanism 40B in addition to the horizontal axis rotation mechanism 40A, but only the rotation mechanism around one axis, that is, the horizontal axis. Only the rotation mechanism 40A may be provided.

  In the above-described embodiment, the rotation mechanism unit 40 is disposed above the target member 20, but the rotation mechanism may be disposed in the horizontal direction with respect to the target member. In this case, the rotation mechanism has a function of rotating the target member at least around the vertical axis.

  In the above-described embodiment, the evaluation device 10 is fixed to the moving vehicle 85 and is movable, but the evaluation device may be configured to be immovable.

  Moreover, although the target member 20 of the above-mentioned embodiment was provided with the reflection member 25 at the longitudinal direction both ends of the horizontal bar 21, in addition to or instead of it, a triangular pyramid-like reflection member is used for the vertical pipe 22 or the reinforcement. You may attach to predetermined positions, such as the bar | burr 26. FIG.

It is a front view of the evaluation apparatus 10 of a vehicle-mounted collision mitigation system. It is a top view of the evaluation apparatus 10 of a vehicle-mounted collision mitigation system. It is a right view of the evaluation apparatus 10 of a vehicle-mounted collision mitigation system. It is an enlarged view of the rotation mechanism part 40 of FIG. FIG. 5 is a right side view of FIG. 4. 4 is a plan view of a brake disc 47. FIG. 3 is a schematic perspective view showing the shape of an absorber frame 72. FIG. It is an enlarged view of the floating mechanism 100 part, (a) is a front view, (b) is a top view.

Explanation of symbols

10: Evaluation device 20 for in-vehicle collision mitigation system 20: Target member 21: Horizontal bar (first bar-shaped member)
22: Vertical pipe 24: Bar 40A: Horizontal axis rotation mechanism 40B: Vertical axis rotation mechanism 61: Brake device 77: Shock absorber (shock absorber)
80: Connecting arm 84: Rubber belt (urging member)
85: Moving vehicle 86: Mount 100: Floating structure (shock absorbing mechanism)

Claims (9)

A target member that can collide with a vehicle equipped with a collision mitigation system;
An evaluation device including a car mounting collision-reduction system and a rotating mechanism for supporting rotatably the opposite side of its target member and the collision side of the vehicle,
The turning mechanism is a turning mechanism around a horizontal axis for turning the target member around a horizontal axis perpendicular to the collision direction of the vehicle;
Furthermore, the evaluation apparatus of the vehicle-mounted collision mitigation system characterized by including the vertical axis rotation mechanism connected with the target member, and enabling the target member to rotate about the vertical axis . The evaluation apparatus for an in-vehicle collision mitigation system according to claim 1 , wherein the target member is biased by a biasing member to a side opposite to the vehicle collision side. Vehicle collision mitigation evaluation apparatus system according to claim 1 or 2, characterized in that said target member further comprises a reverse rotation blocking device that prevents rotates in the initial position direction by its own weight. It is further provided with an impact absorbing device that is disposed in the direction of rotation of the rotation mechanism and is opposite to the vehicle collision side of the target member and is allowed to collide with the target member by the rotation of the target member. The in-vehicle collision mitigation system evaluation device according to any one of claims 1 to 3 . Any of claims 1 to 3, characterized in that it further comprises the vehicle and the rotational energy reduction device about a vertical axis to reduce the rotational energy around the vertical axis applied to the target member from the vehicle by collisions with the target member The evaluation apparatus of the vehicle-mounted collision mitigation system of crab. The in-vehicle collision mitigation system evaluation device according to claim 5 , further comprising a brake device that reduces rotational energy around the vertical axis by converting rotational energy into frictional heat. The said target member is provided with the 1st rod-shaped member made to collide with the said vehicle, and the 2nd rod-shaped member which connects the 1st rod-shaped member and the said rotation mechanism, The 1st thru | or 6 characterized by the above-mentioned. The evaluation apparatus of the vehicle-mounted collision mitigation system in any one of. A platform fixed to the top of the movable vehicle;
Vehicle crash evaluation apparatus mitigation system according to any one of claims 1 to 7, characterized by further comprising a connecting arm for connecting its cradle and the pivoting mechanism. The on-board collision mitigation system evaluation apparatus according to claim 8 , wherein the gantry and the connection arm are connected to each other via an impact absorbing mechanism.

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