JP5489364B2 - Vehicle hood moving device - Google Patents

Description

  The present invention relates to a hood moving device for a vehicle that absorbs an impact when a pedestrian collides with a front hood.

  When a traveling vehicle collides with a pedestrian, the pedestrian may have a secondary collision with the upper surface of the hood at the front of the vehicle body. For this reason, conventionally, when a pedestrian collides with a vehicle, the hood in front of the vehicle is flipped up to absorb an impact when the pedestrian collides with the hood (see Patent Document 1).

  Here, the impact received by the pedestrian that has collided with the vehicle includes a secondary collision to the hood, an impact received by falling from the hood onto the road surface, and the like.

  Therefore, a hood control device has been developed for preventing a pedestrian from falling from the hood onto the road surface (see Patent Document 2). When a pedestrian collides with a vehicle, this device forms a space that absorbs impact by jumping up the front end of the hood, and then impacts when the pedestrian jumps up on the rear side of the hood and rests on the hood. In addition, the front end of the hood is further lifted and the hood is inclined rearward to prevent the pedestrian from falling from the hood onto the road surface.

JP 2007-1539 A JP 2007-38955 A

  The conventional means for moving the hood is a device that is provided on the vehicle body and that uses a cylinder that expands and contracts using gas pressure or explosive explosives. It is limited to the direction or only the inclination by the cylinder jumping up only a part of the hood. In addition, since a lot of equipment is arranged in the engine room, the space for arranging the cylinder in the engine room is limited.

  In addition, when a mechanism that uses the magnetic force of a magnet such as a permanent magnet or an electromagnet is adopted as the hood jumping mechanism, sand iron or dust may be adsorbed by the magnetic force when the flipping mechanism is activated. There is a risk that undesired noise may be generated due to clogging with iron sand and dust. In addition, when an electromagnet is used, if there is a strong electromagnetic field nearby, there is a possibility of adversely affecting the operation of the electromagnet as an actuator.

  The present invention has been made in view of such problems, and a means for moving the hood can be installed in the engine room in a space-saving manner, and the degree of freedom in the moving direction of the hood is high, and the operability is further improved. It is an object of the present invention to provide a hood moving device for a vehicle that can prevent the deterioration of the vehicle.

In order to achieve the above object, the present invention provides a hood moving device for a vehicle (the automobile 1 in the embodiment) provided with a hood at the front of the vehicle body, the hood being provided movably at the front of the vehicle, The first magnet disposed in the hood, the position facing the first magnet, the second magnet disposed in the front part of the vehicle body , and the first magnet and the second magnet are arranged so as to cover both or one of them. Pedestrian collision detection means (in the embodiment) for detecting whether the electromagnetic field suppressing member (electromagnetic shield in the embodiment) provided and the pedestrian collides with the vehicle or there is a possibility that the pedestrian may collide. A pedestrian collision detection device 40), and when the pedestrian collision detection means detects that the pedestrian collides with the vehicle or the pedestrian may collide, the magnetic force of the first magnet and the second magnet. To move the hood relative to the vehicle body To (claim 1).

  In the invention, it is preferable that the electromagnetic field suppressing member covers a portion excluding a surface where the first magnet and the second magnet are opposed to each other (Claim 2).

  In the present invention, at least one of the first magnet and the second magnet is an electromagnet (claim 3).

  In the present invention, when the pedestrian collision detection means detects that the pedestrian collides with the vehicle or the pedestrian may collide, the first magnet and the second magnet are constituted by electromagnets. The hood movement control means (the controller 50 in the embodiment) for moving the hood by exciting the hood is provided (claim 4).

  The hood of the present invention is movable in at least one of the front-rear direction and the left-right direction with respect to the vehicle body (Claim 5).

  As described above, according to the hood moving apparatus for a vehicle according to the present invention, the means for moving the hood can be installed in the engine room in a space-saving manner due to the above characteristics, and the moving direction of the hood It is possible to provide a hood moving device for a vehicle that has a high degree of freedom and that can prevent a decrease in operability.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory side view of a vehicle front side provided with a vehicle hood moving device according to an embodiment of the present invention. The perspective view of the vehicle front side in which the hood movement apparatus of the vehicle was provided is shown. The perspective view of the vehicle front side in the state where the hood of the vehicle was opened is shown. The structure figure of the moving apparatus which moves a hood is shown. The block diagram of the hood movement apparatus of the vehicle concerning one embodiment of this invention is shown. Explanatory drawing for demonstrating the moving direction of the hood moved by the hood moving apparatus of a vehicle is shown. The structure figure of the food | hood movement apparatus which moves the food | hood concerning other embodiment of this invention is shown. The structure figure of the food | hood movement apparatus which moves the food | hood concerning other embodiment of this invention is shown. The structure figure of the food | hood movement apparatus which moves the food | hood concerning other embodiment of this invention is shown. An explanatory view for explaining arrangement of a hood movement device concerning other embodiments of the present invention is shown. The explanatory view for explaining other arrangement of the hood movement device concerning other embodiments of the present invention is shown.

  A preferred embodiment of a hood moving device for a vehicle according to the present invention will be described below with reference to FIGS. First, with reference to FIG. 1, FIG. 2, FIG. 3, the front side of a vehicle provided with a hood moving device for a vehicle will be outlined. In this embodiment, an automobile will be described as an example of a vehicle.

  As shown in FIGS. 1, 2, and 3, an engine room 5 is provided on the front side of the vehicle body 3 of the automobile 1, and an upper portion of the engine room 5 is covered with a hood 10. A front bumper 13 is disposed at the front end of the vehicle body 3. The front bumper 13 includes a bumper face 14 and a bumper beam 15 (see FIG. 1) disposed on the inner side and extending in the vehicle width direction. The bumper beam 15 is fixed to a vehicle body frame (not shown), and the shape and strength are designed so that when an object to be collided (pedestrian) collides, the shape is rebounded by elasticity.

  The hood 10 is supported by the vehicle body 3 so as to be openable and closable via a pair of hood hinges 11 provided on both sides in the vehicle width direction at the rear end. The hood hinge 11 rotatably couples the two link members 11a and 11b, and the fixed plate 12 is pivotally connected to end portions of the link members 11a and 11b. One of the fixed plates 12 is fixed to the vehicle body 3 with bolts or the like, and the other of the fixed plates 12 is fixed to the back surface of the hood 10 with bolts or the like. For this reason, the rear side of the hood 10 is movable up and down by the rotation of the two link members 11a and 11b. The hood hinge 11 normally supports the rear side of the hood 10 in a folded state, and one link member 11a in the folded state is connected to the vehicle body 3 via a break bolt 12a, and the other link member 11b is It is connected to the hood 10 via a breaking bolt 12a. As will be described later, the breaking bolt 12a is broken by an upward bias by a moving device 21 described later when there is a collision or there is a risk of collision, and the pair of link members 11a, 11b are freely rotated, The hood 10 can be moved upward. The front end portion of the hood 10 is locked to the vehicle body side by a hood lock device 17. The hood lock device 17 includes a lock striker 17a provided on the hood side, a latch (not shown) that is provided rotatably on the vehicle body side and can lock and release the lock striker 17a, and rotates the latch. And a release driving portion 17b for forcibly releasing the lock striker 17a.

  The release drive unit 17b is an actuator (for example, a solenoid, a motor, or the like) that is driven by being supplied with electric power in accordance with a command from the controller 50 described later. When power is supplied, the release drive unit 17b rotates the latch to release the locked state of the lock striker 17a. Accordingly, the hood 10 is opened from the front side while being supported by the vehicle body 3 via the hood hinge 11 in a folded state. In FIG. 3, for convenience of explanation, the hood 10 shows a state in which the front side is opened upward with the rear end side as a fulcrum. However, during traveling, the hood 10 is in the engine room 5 as shown in FIG. 2. And is held by the hood hinge 11 and the hood lock device 17.

  Next, the overall configuration of the hood moving device 20 will be described with reference to FIGS. As shown in FIG. 1, the hood moving device 20 includes a moving device 21 that moves the hood 10 and a pedestrian collision detection that detects whether a pedestrian collides with the vehicle or a pedestrian may collide. When the device 40 and the pedestrian collision detection device 40 detect that the pedestrian collides with the vehicle or that the pedestrian may collide, the moving device 21 moves the hood 10 relative to the vehicle body 3. 50.

  2 and 3, the moving device 21 includes a plurality of first magnets 30 disposed at predetermined intervals in the front-rear direction on both sides in the vehicle width direction on the back surface of the hood 10, and the engine room 5. A plurality of second magnets 22 disposed at predetermined intervals in the front-rear direction on both sides in the vehicle width direction. The first magnet 30 and the second magnet 22 are arranged so as to face each other with the hood 10 covering the engine room 5. The first magnet 30 is a permanent magnet, and the second magnet 22 is an electromagnet.

  The structure of the first magnet 30 and the second magnet 22 will be described with reference to FIG. First, the second magnet 22 will be described. As shown in FIG. 4, the second magnet 22 includes cylindrical iron cores 23, 24, 25 formed so as to be continuous in three stages from the upper side to the lower side, and the iron cores 23, 24, 25. It is formed with coils 26, 27, and 28 wound around it, and is installed in the engine room 5 so that the holes 23a, 24a, 25a in the iron core face in the vertical direction. For convenience of explanation, a portion disposed on the upper portion of the second magnet 22 is referred to as a second magnet 22a, and a portion disposed on an intermediate portion in the vertical direction is referred to as a second magnet 22b and disposed on the lower portion. This part is referred to as a second magnet 22c. The coils 26, 27, and 28 are electrically connected to the controller 50 (see FIG. 1), and power is supplied or power supply is interrupted. When electric power is supplied to the coils 26, 27, 28 of the second magnet 22, the lower ends of the corresponding iron cores 23, 24, 25 become N poles and the upper ends become S poles. Further, when the current direction of the supplied power is changed, the lower ends of the iron cores 23, 24, and 25 become the S poles, and the upper ends become the N poles.

  The outer periphery and bottom of the second magnet 22 are covered with an electromagnetic shield 90 (electromagnetic field suppressing member). The electromagnetic shield 90 (electromagnetic field suppressing member) is a member that reflects, blocks, or weakens the electromagnetic field. For example, as an electromagnetic field suppressing member, a conductive member, conductive synthetic resin, carbon fiber interwoven fabric, carbon dispersed in foamed urethane, foam metal, iron plate, copper plate, aluminum plate, metal mesh plate, There are conductive paint and plating. These thicknesses and the sizes of the mesh holes can be changed according to the wavelength of the electromagnetic wave to be shielded. The electromagnetic shield should be grounded if necessary.

  The electromagnetic shield 90 can prevent the iron sand and dust from being adsorbed by the magnetic force during operation. Moreover, the influence on the operation | movement of an electromagnet can be suppressed by preventing the electromagnetic field from the outside.

  The first magnet 30 is a permanent magnet in which the iron core 30a extends in a bar shape, and is inserted in the holes 23a, 24a, and 25a of the second magnets 22a, 22b, and 22c so as to be insertable / removable. The lower part of the iron core 30a is excited to the N pole, and the middle part of the iron core 30a is excited to the S pole. The south pole has a length slightly larger than the length in the vertical direction of each of the second magnets 22a, 22b, and 22c, and is disposed above the north pole. Therefore, electric power is supplied to the coil 28 disposed below the second magnet 22c in a state where the iron core 30a of the first magnet 30 is inserted into the holes 23a, 24a, and 25a of the second magnet 22. The lower side of the second magnet 22c is excited to the N pole, and the upper side is excited to the S pole. Therefore, the magnetic force (repulsive force) between the N pole of the second magnet 22c and the N pole of the first magnet 30 and the magnetic force (repulsive force) between the S pole of the second magnet 22c and the S pole of the first magnet 30 One magnet 30 is pulled up and moved into the second magnet 22b.

  When power is supplied to the coil 27 of the second magnet 22b while power is supplied to the second magnet 22c, the lower part of the iron core 24 of the second magnet 22b is excited to the N pole, and the upper part of the iron core 24 is Excited to the S pole. When the power supply to the second magnet 22c is interrupted in this state, the second magnet 22c enters a non-excited state, and the magnetic force (repulsive force) between the N pole of the second magnet 22b and the N pole of the first magnet 30 and the second Due to the magnetic force (repulsive force) between the S pole of the magnet 22b and the S pole of the first magnet 30, the first magnet 30 is further lifted and moved into the second magnet 22a.

  On the other hand, when power is supplied to the second magnet 22b so that a current in the opposite direction flows to the second magnet 22b with the first magnet 30 pulled up, the lower side of the second magnet 22b is S. Excited to the pole and the upper side is excited to the N pole. Therefore, the magnetic force (attraction force) between the S pole of the second magnet 22b and the S pole of the first magnet 30, the magnetic force (attraction force) between the S pole of the second magnet 22b and the S pole of the first magnet 30, and the hood 10 Due to the gravity, the first magnet 30 moves downward and moves into the second magnet 22b. Similarly, when power is supplied to the second magnet 22c so that a current in the opposite direction flows to the second magnet 22c with the second magnet 22b excited, the iron core 30a of the first magnet 30 moves downward. The first magnet 30 moves into the second magnet 22c.

  That is, when the power supply to the coils 27 and 28 of the second magnets 22b and 22c is controlled, the vertical position of the first magnet 30 can be adjusted. For this reason, by controlling the power supply to the second magnet 22, the first magnet 30 can be moved or moved away from the second magnet 22. Therefore, when the locked state of the hood 10 by the hood lock device 17 provided on the front end side of the hood 10 shown in FIG. 3 is released, the hood 10 can be moved in the vertical direction by the moving device 21. For convenience of explanation, as shown in FIG. 3, the second magnet 22 disposed in the front portion on the left side in the vehicle width direction of the engine room 5 is referred to as a second left front magnet 22Lf, and the vehicle width direction in the engine room 5 The second magnet 22 disposed in the middle portion on the left side in the front-rear direction is referred to as a second magnet left middle 22Ls, and the second magnet 22 disposed on the rear left side in the vehicle width direction of the engine room 5 is the second magnet left rear. Described as 22Lb. Also. The second magnet 22 disposed in the front portion on the right side in the vehicle width direction of the engine room 5 is referred to as a second magnet right front portion 22Rf, and the second magnet disposed in the middle in the front-rear direction on the right side in the vehicle width direction of the engine room 5. 22 is referred to as a second magnet right middle 22Rs, and the second magnet 22 disposed at the rear right side of the engine room 5 in the vehicle width direction is referred to as a second magnet right rear 22Rb.

  Next, a collision detection sensor and a collision prediction device will be described with reference to FIGS. As shown in FIGS. 1 and 2, the collision detection sensor 41 is attached to the front surface of the bumper beam 15 and converts the collision load into an electric signal and outputs the electric signal. The collision prediction device 42 includes a camera 43 disposed in the center in the vehicle width direction on the rear surface side of the windshield 7 in the passenger compartment 6, and a pedestrian collides from an image captured in front of the vehicle captured by the camera 43. It is configured to predict and output whether or not there is a risk.

  Next, the controller 50 will be described with reference to FIGS. 1, 5, and 6. FIG. As shown in FIGS. 1 and 5, the controller 50 supplies power to the second magnet 22 and the release drive unit 17b according to detection signals from the collision detection sensor 41 and the collision prediction device 42, or cuts off the power supply. To do. Specifically, when the controller 50 receives an electric signal corresponding to the collision load from the collision detection sensor 41, the controller 50 determines whether or not the electric signal is a collision load at the time of the collision of the pedestrian. When it is determined that the load is a collision load, power is supplied to the release drive unit 17b to release the locked state of the hood 10 by the hood lock device 17, and the coils 28 of the second magnet left rear 22Lb and the second magnet right rear 22Rb are applied. Supply power. Therefore, the first magnet 30 inserted in the second magnet left rear 22Lb and the second magnet right rear 22Rb is pulled upward, and the break bolt 12a provided on the link members 11a and 11b breaks, and the hood hinge 11 Is extended upward from the folded state, and the hood 10 is in a state where the front side is inclined. Here, when electric power is supplied to the coils 27 and 26 of the second magnets 22b and 22a shown in FIG. 4 according to the magnitude of the collision load at the time of the collision, the hood 10 is inclined forward with the inclination angle being further increased. be able to.

  When the controller 50 receives a detection signal indicating that there is a possibility that the pedestrian may collide from the collision prediction device 42, the controller 50 supplies power to the removal drive unit 17 b in the same manner as the case from the collision detection sensor 41, and the hood lock. When the lock state of the hood 10 by the device 17 is released and power is supplied to the coils 28 of the second magnet left rear 22Lb and the second magnet right rear 22Rb, they are inserted into the second magnet left rear 22Lb and the second magnet right rear 22Rb. The first magnet 30 that has been lifted is pulled upward, the breaking bolt 12a provided on the link members 11a and 11b is broken, and the hood hinge 11 is folded upward so that the hood 10 is tilted forward. Let it be in the state you let it. The controller 50 adjusts the inclination angle of the hood 10 according to the degree of possibility that a pedestrian collides from the collision prediction device 42. Since the adjustment of the inclination angle of the hood 10 conforms to the case of the collision detection sensor 41, the description thereof is omitted. In addition, although the collision detection sensor 41 and the collision prediction device 42 are connected to the controller 50, when the controller 50 receives a signal indicating that a pedestrian collides or may collide from at least one of the devices or the like. The hood 10 is tilted as described above.

  Further, the controller 50 receives an electrical signal corresponding to the collision load from the collision detection sensor 41 or a detection signal indicating that a pedestrian may collide from the collision prediction device 42, and detects the rear side of the hood 10. Power may be supplied to the coils 28 of the second magnet left front 22Lf and the second magnet right front 22Rf so that the front side of the hood 10 moves upward simultaneously with or after the hood 10 is tilted forward by moving upward. . If it does in this way, the space 45 which absorbs the impact when a pedestrian gets on the hood 10 can be formed under the hood 10 (refer Fig.6 (a)).

  Further, the controller 50 receives an electrical signal corresponding to the collision load from the collision detection sensor 41 or a detection signal indicating that a pedestrian may collide from the collision prediction device 42, and detects the rear side of the hood 10. The power supply to the coil 28 of the second magnet left front 22Lf and the second magnet right front 22Rf is cut off or reversed so that the front side of the hood 10 moves downward simultaneously with or after the hood 10 is tilted forward by moving upward. An electric current may be passed. If it does in this way, more space 46 which absorbs the impact to the food | hood 10 at the time of a pedestrian moving to the windshield 7 side can be ensured more (refer FIG.6 (b)).

  Further, the controller 50 receives an electrical signal corresponding to the collision load from the collision detection sensor 41 or a detection signal indicating that a pedestrian may collide from the collision prediction device 42, and detects the rear side of the hood 10. The second magnet left front 22Lf, the second magnet so that the front side of the hood 10 is moved upward and the rear side of the hood 10 is moved downward at the same time or after the hood 10 is tilted forward by moving upward. The power supply to the coils 26, 27, and 28 of the right front 22Rf, the second magnet left rear 22Lb, and the second magnet right rear 22Rb may be controlled. If it does in this way, the space 47 which absorbs the impact when a pedestrian rests on the hood 10 can be formed, and the possibility that the pedestrian falls from the hood 10 onto the road surface can be reduced ( (Refer FIG.6 (c)).

  Further, the controller 50 controls power supply to the second magnet left middle 22Ls and the second magnet right middle 22Rs according to the inclination of the hood 10.

  In the hood moving apparatus 20 of the above-described embodiment, the second magnet 22 is configured such that the coil 26 is wound around the cylindrical iron core 23 and the first magnet 30 can be inserted into the hole 23 a of the iron core 23. As shown in FIG. 7, the hood moving device 70 uses the second magnet 60 as a columnar iron core 61 and winds a coil 62 around the iron core 61 to face the iron core 30 a of the first magnet 30. It may be arranged like this. In this case, the vertical length of the iron core 30a of the first magnet 30 is made shorter than that of the iron core 30a (see FIG. 4) described above. The controller 50 controls the magnitude of the current supplied to the coil 62 of the second magnet 60, so that the vertical position of the first magnet 30 relative to the second magnet 60 can be adjusted. Since this structure is simpler than the above-described embodiment, the cost can be reduced. In addition, a buffer material 63 for alleviating the collision with the second magnet 60 may be provided at the lower end of the first magnet 30. This cushioning material may be provided on the second magnet side.

  In addition, electromagnetic shields 91 and 90 (electromagnetic field suppressing members) covering these magnets are disposed around each of the first magnet 30 and the second magnet 22. The electromagnetic shields 91 and 90 (electromagnetic field suppressing members) are members that reflect, block, or weaken the electromagnetic field. For example, conductive members, conductive synthetic resin, carbon fiber interwoven fabric, carbon dispersed in foamed urethane, foam metal, iron plate, copper plate, aluminum plate, metal mesh plate, conductive paint, plating, etc. . These thicknesses and the sizes of the mesh holes can be changed according to the wavelength of the electromagnetic wave to be shielded.

  Thereby, adsorption | suction of the iron sand attracted by the magnetic force of the 1st magnet 30 which consists of a permanent magnet, a dust, etc. can be prevented, and operativity can be improved. In addition, it is possible to prevent the generation of sound due to adsorption of sand iron or dust.

  In the hood moving device 70 according to the above-described embodiment, the first magnet 30 is covered with the electromagnetic shield 91, and the buffer material 63 for reducing the collision with the second magnet 60 is provided at the lower end of the first magnet 30. As shown in FIG. 8, the hood moving device 71 may be a hood moving device in which an electromagnetic shield 92 that covers the surface facing the second magnet 60 in addition to the periphery of the first magnet 30 is arranged.

  In this case, iron sand and dust attracted by the magnetic force from the surface of the first magnet 30 facing the second magnet 60 can be prevented. Here, the member used for this opposing surface 92a may have a function as a cushioning material. For example, a synthetic resin, plastic, gel, or the like in which a conductive material is kneaded. The member on the facing surface is preferably a material that shields the magnetic force from the facing surface of the first magnet 30 and allows the magnetic lines of force from the second magnet 60 to pass through. Further, the electromagnetic shield 92 may be a member that is different between the facing surface and the peripheral portion. For example, the surrounding portion is made of a member that completely shields the electromagnetic field, and the facing surface is a member that weakens the electromagnetic field, or shields the magnetic force from the facing surface of the first magnet 30 as described above, and from the second magnet 60. A material that passes the magnetic field lines is preferable.

  Further, as shown in FIG. 9, the hood moving device 80 forms a second magnet group 82 by arranging a plurality of second magnets 81 constituting an electromagnet by winding a coil 62 around a cylindrical iron core 61 in the front-rear direction. In addition, the first magnet 83 may be provided on the back surface of the hood 10 so as to face the upper side of the plurality of second magnets 81 arranged, and a linear motor may be configured by the first magnet 83 and the second magnet group 82. . Each of the second magnets 81 is covered with an electromagnetic shield 90, and a portion facing the first magnet 83 is covered with a member that does not shield and reflect the magnetic field. In this case, the 1st magnet 83 is comprised so that a magnetic pole may come to the 2nd magnet 81 side which opposes. In this embodiment, N poles, S poles, and N poles are arranged from the front side to the rear side of the vehicle. Note that an electromagnetic shield 92 as shown in FIG. 8 may be arranged for the first magnet 83.

  As shown in FIG. 10, the second magnet group 82 is installed at both ends in the vehicle width direction of the engine room 5 so as to extend in the front-rear direction. When the second magnet group 82 is arranged in this way and the switching of excitation is controlled so that the magnetic pole of the iron core on the hood side of the second magnet 81 becomes N pole or S pole, the second magnet 81 and the first magnet The hood 10 can be moved in the front-rear direction by the force attracted by 83 N poles and S poles and the repulsive force between the N poles and the S poles. The first magnet 81 is provided on the front side and the rear side of the back surface of the hood 10 so as to extend in the hood width direction, and the second magnet group 82 is opposed to the first magnet 81 as shown in FIG. 5 may be provided on the front side and the rear side. In this way, when the switching of excitation is controlled so that the iron core magnetic pole on the hood side of the second magnet 81 becomes N pole or S pole, the N pole and S pole of the second magnet 81 and the first magnet 83 are changed. The hood 10 can be moved in the vehicle width direction by the attractive force and the repulsive force between the N poles and the S poles.

  As described above, the moving devices 21 of the hood moving devices 20, 70, 80 are composed of the first magnet and the second magnet, and a plurality of moving devices 21 are arranged around the engine room 5. For this reason, the magnitude | size of each magnet can be made small and the moving apparatus 21 can be installed in the engine room 5 in space-saving.

  In the above-described embodiment, the second magnet 22 is an electromagnet, but may be a permanent magnet. In this case, a plate member (for example, a conductive plate) that interrupts the magnetic field is inserted between the first magnet 30 and the second magnet 22, and the plate is used when there is a possibility of a pedestrian colliding or colliding. A device for removing the member is required.

  Moreover, although the case where the hood is moved by the hood moving devices 20, 70, 80 has been described in the above-described embodiments, the movement target may be a side door, a rear door, or a ceiling of the vehicle.

1 Automobile (vehicle)
3 Body 10 Hood 20, 70, 80 Hood moving device 22 Second magnet 30 First magnet 40 Pedestrian collision detection device (pedestrian collision detection means)
50 controller (hood movement control means)
90, 91, 92 Electromagnetic shield (electromagnetic field suppressing member)

Claims (5)

A vehicle hood moving device provided with a hood at the front of the vehicle body,
The hood is provided movably on the front of the vehicle body,
A first magnet disposed in the hood;
A position facing the front Symbol first magnet, a second magnet disposed on the vehicle body front,
An electromagnetic field suppressing member disposed to cover both or one of the first magnet and the second magnet;
Pedestrian collision detection means for detecting whether a pedestrian collides with the vehicle or a pedestrian may collide,
When the pedestrian collision detection means detects that a pedestrian collides with the vehicle or a pedestrian may collide, the hood is attached to the vehicle body by the magnetic force of the first magnet and the second magnet. A hood moving device for a vehicle, characterized in that The hood movement device for a vehicle according to claim 1, wherein the electromagnetic field suppressing member covers a portion excluding a surface where the first magnet and the second magnet are opposed to each other. The vehicle hood movement device according to claim 1, wherein at least one of the first magnet and the second magnet is an electromagnet. When the pedestrian collision detection means detects that a pedestrian collides with the vehicle or a pedestrian may collide, one of the first magnet and the second magnet constituted by the electromagnet is used. The vehicle hood movement device according to claim 3, further comprising a hood movement control unit configured to excite and move the hood. The vehicle hood moving apparatus according to any one of claims 1 to 4, wherein the hood is movable in at least one of a front-rear direction and a left-right direction with respect to the vehicle body.

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