• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a land vehicle (10) having a front portion (12), said front portion comprising a protection device (15), said protection device comprising: - a bumper (17) disposed in front of the vehicle (10); - A device (18) for detecting shock or presence, capable of detecting an obstacle (16) in front of the vehicle (10), characterized in that the bumper (17) comprises a flap (20) located at the at the lower part of the front portion (12) of the vehicle (10), said flap (20) being able to pass from a closed position to an open position towards the bottom of the vehicle when detected by the device (18). ) a shock or a presence in front of the vehicle, so as to prevent a passage of the obstacle (16) under the front portion (12) of the vehicle (10).
    公开号:FR3025469A1
    申请号:FR1458502
    申请日:2014-09-10
    公开日:2016-03-11
    发明作者:Breton Frederic Le；Guillaume Vidal；Bernard Metayer
    申请人:Alstom Transport Technologies SAS；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a land vehicle comprising a front part, said front part comprising a protection device comprising: a bumper disposed at the front of the vehicle; a device for detecting shock or presence, able to detect an obstacle in front of the vehicle. EP1334018 discloses a shock energy dissipation device equipping vehicles, particularly rail. Such a device has energy-absorbing elements configured so that, in the event of impact, a part of the vehicle is deployed opposite to the direction of impact and the intermediate space generated by this deployment is filled by the absorber elements. energy. This type of device is particularly suitable for protecting the passengers of the vehicle in the event of impact with an obstacle, or with another vehicle. However, if the obstacle is constituted by a pedestrian, the latter risks serious injuries in case of shock. The pedestrian is particularly likely to be driven under the vehicle and go under the wheels. The invention aims to improve the existing devices for the protection of pedestrians in the event of a frontal impact with a vehicle, in particular of the railway vehicle type, whatever the position of the pedestrian at the moment of impact: from the front, from the side or well laid to the ground. In particular, the invention aims to prevent a passage of the pedestrian under the front of the vehicle. For this purpose, the subject of the invention is a land vehicle of the aforementioned type, in which the bumper comprises a flap located at the front in the lower part of the front part of the vehicle, said flap being able to pass from a closed position to an open position towards the bottom of the vehicle if the device detects a shock or presence in front of the vehicle, so as to prevent an obstacle passing under the front of the vehicle. According to particular embodiments, the vehicle comprises one or more of the following characteristics, taken individually or according to all the possible technical combinations: the bumper further comprises a cover capable of passing from a closed position to a position open towards the front of the vehicle if the device detects a shock or presence in front of the vehicle, so as to eject the obstacle towards the front to move it away from the front of the vehicle; The protective device further comprises a first shock energy absorption means, able to deploy by inflation in the event of impact or of a presence in front of the vehicle; the shock energy absorbing means is configured to deploy beyond, preferably above, a space between the closed and open positions of the hood; the vehicle comprises a windshield located above the bumper, such that the shock energy absorption means is configured so as to deploy in front of the windshield; The shutter is capable of passing by rotation or translation from the closed position to the open position towards the bottom of the vehicle; - The flap is adapted to go through rotation of the closed position to the open position towards the bottom of the vehicle, the flap further comprising a protective surface adapted to fill the space between the flap in the open position and the cover; The protective surface further comprises a second shock energy absorption means capable of being deployed between the cover and the flap after opening the flap (20); - The hood is adapted to pass by rotation or translation of the closed position to the open position towards the front of the vehicle; 20 - in the closed positions of the hood and the flap, the bumper protrudes towards the front of the vehicle. The subject of the invention is also a method of protecting a vehicle, comprising the following steps: detection of an impact on a bumper or presence of an obstacle in front of the vehicle, for a vehicle vehicle in non-zero speed condition; - Passing a lower flap from a closed position to an open position towards the bottom of the vehicle. According to particular embodiments, the method comprises one or more of the following characteristics, taken separately or in any possible technical combination: following the detection step, the method comprises steps of passage of a hood the vehicle from a closed position to an open position towards the front of the vehicle, and inflating deployment of a shock energy absorbing means, over a space between the closed and open positions hood; 3025469 3 - the hood passage in the open position is performed before or after the passage of the flap in the open position, or simultaneously with the passage of the flap in the open position. - Following the detection step, the method further comprises an emergency braking step of the vehicle.
    [0002] The invention also relates to a vehicle as described above, provided with means for implementing a protection method as described above. The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the drawings, in which: FIG. 1 is a perspective view of the front of a vehicle; according to an embodiment of the invention, before a frontal impact with a standing pedestrian; FIG. 2 is a side view of the front of the vehicle of FIG. 1, before a frontal impact; - Figure 3 is a perspective view of the front of the vehicle of Figure 1, following detection of a frontal impact or detection of a pedestrian presence; FIG. 4 is a side view of the front of the vehicle of FIG. 1, following detection of a frontal impact or detection of a pedestrian presence; FIG. 5 is a side view of the front of the vehicle of FIG. 1, following detection of a frontal impact or detection of a pedestrian presence on the ground; and FIG. 6 is a side view of the front of the vehicle of FIG. 1, according to one variant embodiment of the invention, following detection of a frontal impact or detection of a pedestrian presence. The vehicle 10 represented in FIGS. 1 and 2 is a train or tram-type railway vehicle intended to move along an axis 11. The vehicle 10 comprises a front portion 12 forming the front of said vehicle. The front portion 12 includes 25 including a windshield 13, possibly provided with a windshield wiper 14. The windshield wiper 14 can be integrated at the bottom, top or side of the windshield. The vehicle 10 is equipped with a device 15 for protecting an obstacle 16 in the event of a frontal impact with the vehicle 10. The type of obstacle considered is in particular a pedestrian 16.
    [0003] The device 15 comprises a bumper 17, also called fairing. The bumper 17 is preferably projecting towards the front of the vehicle 10. The bumper 17 is equipped with a device 18 for detecting shock or presence in front of the vehicle, shown schematically in FIG. 18 of detection is able to detect, by contact or without contact, an obstacle in front of the vehicle. The device 18 is for example an electronic device comprising contact sensors, for example pressure sensors, or non-contact sensors, for example infrared or ultrasonic sensors. In order to optimize the detection speed of a frontal impact, the sensors are preferably located at the front of the bumper 17.
    [0004] Preferably, the bumper 17 is located at the bottom of the frontal portion 12, so as to strike first and foremost the legs of the pedestrian 16 and not vital regions such as the head or the ribs, and by controlling the trauma levels of the pedestrians. knees. The bumper 17 comprises a cover 19 located at the front of the vehicle 10, under the windshield 13. The cover 19 is for example formed by a fairing or a strip 10 carrying headlights. In the normal situation of movement of the vehicle 10, the cover 19 is in a closed position, shown in FIGS. 1 and 2. In the closed position, the cover 19 forms a continuous surface with the windshield 13. In a variant, the cover does not form a continuous surface with the windshield, the hood being for example positioned forward with respect to the windshield.
    [0005] The cover 19 is able to move to an open position. With respect to the closed position, the cover 19 in the open position is remote from the front portion 12 towards the front of the vehicle 10. In the embodiment described here and shown in FIGS. 3, 4 and 5 in the open position, the cover 19 is connected to a pivoting means towards the front of the top of the cover 19. This means comprises for example hinges.
    [0006] The cover 19 includes an opening device, such as a spring cylinder associated with a latch which holds the hood in the closed position. The detection device 18 is able to execute a program in which the latch opens when a shock or pedestrian presence is detected at the bumper 17, triggering the passage of the cover 19 in the open position.
    [0007] The bumper 17 also comprises a flap 20 located at the front of the vehicle 10, in the lower part of the front portion 12, which is lower than the cover 19. In a normal situation of movement of the vehicle 10, the flap 20 is in a closed position, shown in Figures 1 and 2. In the closed position, the flap 20 forms a continuous surface with a lower surface 21 disposed under the front portion 12 of the vehicle 10.
    [0008] The flap 20 is adapted to move to an open position, shown in Figures 3, 4 and 5. With respect to the closed position, the flap 20 in the open position is moved away from the surface 21 in the downward direction. In the embodiment described here, the flap 20 is connected to a means of pivoting downwards from the front of the flap 20. Various embodiments are possible, in combination or not, for triggering the opening of the flap. cover 19 and triggering the opening of the flap 20, 3025469 5 following detection of a frontal impact or detection of a pedestrian presence by the detection device 18. In a first embodiment, the opening of the cover 19 is triggered before the opening of the flap 20. The flap 20 is for example equipped with a spring actuator system which triggers the pivoting down of said flap, after release of a point of attachment by the opening of the cover 19. In a second embodiment, the opening of the flap 20 is triggered before the opening of the cover 19. In a third embodiment, the opening of the flap 20 is triggered substantially at the same time as the opening of the cover 19. The flap 20 and / or the cover 19 are for example equipped with a spring cylinder system which triggers the movement of said flap and said cover by the release. a latch. After opening the flap 20, it is maintained in support of the ground or near the ground until the immobilization of the vehicle 10.
    [0009] Other embodiments may however be envisaged. In the event of detecting a frontal impact of the vehicle 10 with a pedestrian 16 or detection of a pedestrian presence, the opening of the pane 20 aims to block a space between the vehicle 10 and the ground to prevent the pedestrian from passing under the vehicle, and in particular under the front portion 12 of the vehicle 10. Thus, no part of the body of the pedestrian 16 can pass under the vehicle 10, which reduces the risk of serious injury and facilitates the release of the pedestrian 16. Preferably, the flap 20 has a protective surface 22. The surface 22 is for example formed by a net attached to the rear of the flap 20 and contained inside the vehicle 10 in the closed position of the flap. When the flap is in the open position, the surface 22 is deployed in a space between the open and closed positions of the flap, so as to fill the open space between the flap 20 and the cover 19. The device 15 further comprises shock energy absorbing means 23, adapted to deploy by inflation in the event of shock detection or pedestrian presence. The means 23 is visible in the deployed position in FIGS. 3, 4 and 5. The means 23 is preferably an airbag or air bag, comprising a gas generator activated by the opening of the cover 19, after detection of a shock or A pedestrian presence by the device 18. For example, according to a known system, the actuator opening the cover 19 sends an electrical signal to a pyrotechnic device that ignites a chemical reagent, generating inflation gases.
    [0010] When the cover 19 is in the closed position, the airbag 23 is in a folded position behind the cover 19. When the cover is in the open position, the airbag 23 is deployed above a space between the positions. The airbag in the extended position, as shown in FIGS. 3, 4 and 5, is located in front of the windshield 13 and in front of the wiper 14. The airbag 23 is deployed on all or part of the width of the windshield 13. In a preferred embodiment, the protection device 15 comprises only the flap 20 as an active protective element, the cover 19 being fixed and the device 15 having no airbag 23.
    [0011] In a second embodiment, the protection device 15 comprises only the flap 20 and the cover 19 as active protective elements, the device 15 having no airbag 23. In a third embodiment, the device 15 of protection comprises the shutter 20, the cover 19 and the airbag 23 as active protection elements.
    [0012] A method of operating the device 15 according to the third embodiment above will now be described, taking as an example a pedestrian type obstacle. The vehicle 10 is provided with means for implementing said method, such as a program stored in the device 18. The implementation of the method is triggered by the detection of a shock or a presence between the screen shock 17 of the vehicle 10 and the pedestrian 16. The detection is performed by the device 18 which triggers the opening of the cover 19 towards the front of the vehicle 10. The opening of the cover 19 is intended to eject forward the pedestrian 16 to move away from the front portion 12. In particular, the opening of the cover 19 aims to keep the pedestrian head 16 away from the windshield 13 and / or the windscreen wiper 14, which pose a risk of serious injury. The opening of the cover 19 causes the deployment of the airbag 23, above a space between the open and closed positions of the cover 19. The airbag 23 is thus taken place between the head of the pedestrian 16 and the pare 13, providing additional protection to said pedestrian.
    [0013] The opening of the cover 19 further causes the flap 20 to open towards the bottom of the vehicle 10 to prevent the pedestrian 16 from being driven under the vehicle. In normal operation, the method can trigger an emergency braking of the vehicle as soon as a presence or shock is detected, or when the flap 20 and / or the cover 19 are opened. Preferably, the detection device 18 is active. only for non-zero speeds of the vehicle 10.
    [0014] In the event of a malfunction, for example in the event of a malfunction of the cover latch 19, the method may trigger an emergency brake of the vehicle simultaneously with the opening of the flap 20. Before the vehicle is restarted, it is necessary to perform certain maintenance operations such as: the restoration of operating condition and the replacement of the airbag 23, the latter being easily removable without tools; the replacement of the shutter 20, with possible replacement in case of deformation or breakage; the replacement of the cover 19, with possible replacement; resetting the detection device 18.
    [0015] According to an embodiment not shown, the surface 22 comprises an additional airbag adapted to be deployed between the cover 19 and the flap 20, after opening the flap 20, to protect a pedestrian fallen to the ground. According to another embodiment shown in Figure 6 in the open position, the cover 19 and the flap 20 are fixed relative to one another and are able to translate diagonally with respect to the front portion 12, towards forward and towards the ground. According to a variant not shown in the embodiment of FIG. 6, the cover 19 and the shutter 20 are not fixed with respect to each other and are able to translate, independently of one another, of the closed position to the open position.
    权利要求:
    Claims (16)
    [0001]
    CLAIMS1.- A land vehicle (10) having a portion (12) frontal, said front portion comprising a device (15) for protection, said protection device comprising: - a bumper (17) disposed at the front of the vehicle ( 10); - A device (18) for detecting shock or presence, capable of detecting an obstacle (16) in front of the vehicle (10), characterized in that the bumper (17) comprises a flap (20) located at the at the lower part of the front portion (12) of the vehicle (10), said flap (20) being able to pass from a closed position to an open position towards the bottom of the vehicle when detected by the device (18). ) a shock or a presence in front of the vehicle, so as to prevent a passage of the obstacle (16) under the front portion (12) of the vehicle (10).
    [0002]
    2. Vehicle according to claim 1, such that the bumper (17) further comprises a cover (19) adapted to move from a closed position to an open position towards the front of the vehicle when detected by the device. (18) a shock or presence in front of the vehicle, so as to eject the obstacle (16) forward to move it away from the front portion (12) of the vehicle (10).
    [0003]
    3. Vehicle according to claim 2, such that the device (15) of protection further comprises a first means (23) for absorbing shock energy, able to deploy by inflation in case of shock or presence in front of the vehicle.
    [0004]
    The vehicle of claim 3, wherein the shock energy absorbing means (23) is configured to extend beyond a gap between the closed and open positions of the hood (19).
    [0005]
    5. Vehicle according to claim 4, such that the shock energy absorbing means (23) is configured to deploy above the space between the closed and open positions of the hood (19). .
    [0006]
    6. Vehicle according to claim 5, comprising a windshield (13) located above the bumper, such that the shock energy absorbing means (23) is configured to deploy in front of the bumper. windshield. 3025469 9
    [0007]
    7.- Vehicle according to any one of the preceding claims, such that the flap (20) is adapted to pass by rotation or translation of the closed position to the open position towards the bottom of the vehicle. 5
    [0008]
    8. Vehicle according to claim 7, such that the flap (20) is able to go through rotation from the closed position to the open position towards the bottom of the vehicle, the flap (20) further comprising a surface (22) of protection adapted to fill the space between the flap (20) in the open position and the cover (19). 10
    [0009]
    9. Vehicle according to claim 8, such that the surface (22) of protection further comprises a second shock energy absorption means, able to be deployed between the cover (19) and the flap (20) after opening of the flap (20). 15
    [0010]
    10.- Vehicle according to any one of claims 2 to 9, such that the cover (19) is adapted to pass by rotation or translation of the closed position to the open position towards the front of the vehicle.
    [0011]
    11. Vehicle according to any one of claims 2 to 10, such as in the closed positions of the hood and the flap, the bumper protrudes towards the front of the vehicle.
    [0012]
    12. A method of protecting a vehicle (10), comprising the following steps: - detection of a shock on a bumper or the presence of an obstacle (16) in front of the vehicle, for a vehicle in non-zero speed condition; - passage of a lower flap (20) from a closed position to an open position towards the bottom of the vehicle.
    [0013]
    13. A process according to claim 12, comprising the following steps following the detection step: passing a hood (19) of the vehicle from a closed position to an open position towards the front of the vehicle; inflating deployment of a shock energy absorbing means (23) above a space between the closed and open positions of the hood. 3025469 10
    [0014]
    14- The method of claim 13, such that the passage of the cover (19) in the open position is performed before or after the passage of the flap (20) in the open position, or simultaneously with the passage of the flap (20) in the open position. 5
    [0015]
    15.- Method according to one of claims 12 to 14, further comprising a step of emergency braking of the vehicle following the detection step.
    [0016]
    16.- Vehicle (10) according to one of claims 1 to 11, provided with means for implementing a method according to one of claims 12 to 15. 10
    类似技术:
    公开号 | 公开日 | 专利标题
    EP2995508B1|2017-10-18|Device for protection of pedestrians in case of impact with a vehicle
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    FR2660609A1|1991-10-11|IMPACT PROTECTION DEVICE FOR AN OCCUPANT OF A MOTOR VEHICLE.
    EP1514768A1|2005-03-16|Combined use of a wing and bonnetwith an airbag and a wingretention andsupport device, vehicle wing,vehicle wing module and bonnet
    FR2848947A1|2004-06-25|SAFETY DEVICE FOR LIFTING A HOOD OF A MOTOR VEHICLE IN THE EVENT OF A COLLISION
    EP0926018A1|1999-06-30|Pedestrian protection method in case of a frontal collision with a motor vehicle and device for carrying out the method
    FR2818224A1|2002-06-21|RAIL VEHICLE WITH DRIVING CABIN COMPRISING AN ENERGY ABSORBING STRUCTURE SUITABLE FOR COLLISION ABOVE THE VEHICLE CHASSIS
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    EP2165905B1|2013-02-06|Vehicle occupant protection device
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    BE1016533A3|2006-12-05|Protection device.
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    同族专利:
    公开号 | 公开日
    EP2995508B2|2021-07-14|
    EP2995508A1|2016-03-16|
    FR3025469B1|2018-02-16|
    BR102015022090A2|2016-03-15|
    AU2015221501B2|2019-02-14|
    EP2995508B1|2017-10-18|
    AU2015221501A1|2016-03-24|
    引用文献:
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    法律状态:
    2015-09-22| PLFP| Fee payment|Year of fee payment: 2 |
    2016-03-11| PLSC| Search report ready|Effective date: 20160311 |
    2016-09-21| PLFP| Fee payment|Year of fee payment: 3 |
    2017-09-28| PLFP| Fee payment|Year of fee payment: 4 |
    2018-02-02| CA| Change of address|Effective date: 20180103 |
    2018-09-24| PLFP| Fee payment|Year of fee payment: 5 |
    2019-09-25| PLFP| Fee payment|Year of fee payment: 6 |
    2020-09-14| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1458502A|FR3025469B1|2014-09-10|2014-09-10|PIECE PROTECTION DEVICE IN THE EVENT OF SHOCK WITH A VEHICLE|FR1458502A| FR3025469B1|2014-09-10|2014-09-10|PIECE PROTECTION DEVICE IN THE EVENT OF SHOCK WITH A VEHICLE|
    EP15182700.3A| EP2995508B2|2014-09-10|2015-08-27|Device for protection of pedestrians in case of impact with a vehicle|
    AU2015221501A| AU2015221501B2|2014-09-10|2015-09-03|Device for protection of pedestrians in case of impact with a vehicle|
    BR102015022090A| BR102015022090A2|2014-09-10|2015-09-09|pedestrian impact protection device with a vehicle|
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