• 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 invention relates to a motor vehicle comprising outer spars (1) and side doors (13, 25) each comprising a box, the vehicle being remarkable in that it further comprises at least one shock absorbing device ( 15, 17, 23) arranged in the lower part of the door casing of at least one door (13, 25) and in that the device or devices (15, 17, 23) are arranged to be placed at least partly in position. view of one of said outer longitudinal members (1).
    公开号:FR3050705A1
    申请号:FR1653879
    申请日:2016-04-29
    公开日:2017-11-03
    发明作者:Marc Peru；Patricia Lembert
    申请人:Peugeot Citroen Automobiles SA；
    IPC主号:
    专利说明:

    The invention is in the field of passive vehicle safety equipment. In particular, the invention lies in the field of protection of vehicles against side impacts. The invention relates to an energy absorption system and a vehicle equipped with such a system.
    Current regulations require motor vehicle manufacturers to meet certain safety constraints and to have tests performed to obtain the necessary certification for all marketing. There are also optional tests, performed by consumer organizations (the various "NCAP" world), such as the post test that is to launch a vehicle at a preset speed against a pole at the driver's seat according to different protocols. According to a first protocol, a side impact is achieved by bringing the vehicle into contact with the post in a direction orthogonal to the longitudinal axis of the vehicle and at an impact speed of 29 km / h. In a second protocol, called severed, the side impact is achieved by bringing the vehicle into contact with the post in a direction forming an angle of 75 ° with respect to the longitudinal axis of the vehicle, and according to a speed of impact of 32 km / h. The severed protocol having been recently implemented in Europe, there is therefore a need for improvement of the behavior of the vehicle structure in the event of side impact, and in particular of side impact against a pole.
    It is known from the prior art to reinforce the substructure structures such as, for example, the external longitudinal members.
    Thus the document DE102012024836 proposes a vehicle spar comprising two internal chambers formed by two parts. The outer part is conventionally made of metal while the inner part of the vehicle is made of composite material and filled with foam.
    Document DE102014206002 proposes a vehicle spar comprising a series of internal reinforcing partitions forming chambers. It is also proposed to fill one of these chambers with a composite material element showing a honeycomb structure.
    The document DE102013214787 proposes to strengthen the spar with foam and reinforcements. It is also proposed to fill the space presented between the spar and the outer skin of sills by pultrusion with foam.
    Unfortunately, these solutions can only improve the behavior of the vehicle in the event of a side impact, once the outer spar enters its phase of deformation. But it could be interesting to find a system that allows energy absorption dice before the spar is impacted by the shock. Moreover, the insertion of reinforcement elements or foam inside the spar may involve a modification of the assembly synoptic parts, particularly because of the problems of resistance of the absorbent materials to the high temperatures encountered in the step cataphoresis. It would be advantageous to propose solutions that do not risk to involve modifications of these assembly synoptics because such modifications are expensive to implement because of the automation of the production lines.
    The document DE19538844 proposes to fill the cavity formed by the outer wall of the spar and the outer skin of the sill of a foam to cushion shocks. This solution is interesting but not yet quite satisfactory. For example, it is not compatible with the styles of vehicles in which the doors will fully cover the rocker.
    In addition, there is an interest in further improving the absorption performance that can be obtained by this means, because none of the proposed solutions takes into account the possibility of reinforcing the doorway structures. The object of the invention is to meet the drawbacks of the prior art by proposing a new system for absorbing energy at the bottom of the body, the installation of which does not modify the assembly synoptic of the parts in its part. robotic. For this purpose the invention relates to a motor vehicle comprising outer rails and side doors each comprising a box, the vehicle being remarkable in that it further comprises at least one shock absorbing device arranged in the lower part of the box of at least one door and in that the device or devices are arranged to be placed at least partly facing one of said outer longitudinal members.
    According to particular embodiments, the invention may comprise one or the other of the following characteristics, taken separately or according to all the possible combinations:
    The shock absorbing device comprises or is a wedge, preferably the wedge is made of foam and / or ribbed composite material.
    The shock absorbing device comprises or is a spacer system, preferably said system comprises at least one or more struts interconnected by at least one tube and / or at least one bar passing through them.
    The shock absorbing device comprises or is a reinforcement, preferably in the form of a profile, of metal or composite material.
    The vehicle includes doors extending in the vertical direction down to cover the rocker over substantially its entire height.
    The vehicle comprises a lower body opening in that it comprises an outer skin being placed in surface continuity with the bottom of the door and defining a chamber, between the outer spar and said outer skin, which extends in the direction longitudinal of the vehicle, the vehicle being remarkable in that it further comprises at least one shock absorbing device disposed in said chamber.
    The shock absorbing device of the door is arranged and / or dimensioned to extend in height until it is placed opposite the door step.
    The door is a front door of the vehicle, preferably it is the front door on the driver's side. - At least one shock absorbing device is glued or welded in the bottom of the door box and / or in the sill chamber.
    The vehicle further comprises spray foam on at least one side of the shock absorbing device.
    As will be understood from reading the definition that has just been given, the invention consists in a first aspect of having at least one shock absorbing device in the lower part of the door box from to less a side door. Depending on the style of the vehicle, that is to say according to the fact that the doors extend in the vertical direction down to cover totally or partially the rocker, said absorption device will be placed opposite one of the longerons of the vehicle so as to cover it completely or at least partially. In the event of a side impact such as for example a pole impact, the shock will begin to be absorbed before the spar is stressed, thus improving the performance of the vehicle in this area.
    According to a second aspect, and in particular when the doors of the vehicle do not cover the entire rocker, the invention proposes to place an additional shock absorber device at the chambers formed between the outer face of the spar and the outer skin of rocker. In this way the spar is protected in full regardless of the style of the vehicle.
    Finally, according to a third aspect, the shock absorption devices arranged in the door box are arranged and / or dimensioned to extend in height until they are placed opposite the door step. The invention will be clearly understood and other aspects and advantages will become apparent from the following description, given by way of example with reference to the accompanying drawing plates in which: FIGS. 1 and 8 show schematically views in lower profile section of side doors of a motor vehicle and their general arrangement with respect to the spar according to the prior art. - Figures 2 and 3 show a first variant of the invention in the context of doors fully covering the rocker. - Figures 4 and 5 show a second variant of the invention in the context of doors fully covering the underside. - Figures 6 and 7 show a third variant of the invention in the context of doors fully covering the underside. - Figure 9 shows a fourth embodiment of the invention in the context of doors partially covering the underside. - Figure 10 shows a fifth variant of the invention in the context of doors partially covering the rocker.
    In the following description, the term "understand" is synonymous with "include" and is not limiting in that it allows the presence of other elements in the device, the arrangement or the vehicle to which it refers. It is understood that the term "understand" includes the words "consist of".
    Similarly, the terms "lower", "upper", "forward", "rear", "longitudinal" and "transverse" will be used in relation to the general orientation of the vehicle. "Inferior" will mean a greater proximity to the ground than "higher" along the vertical axis.
    The similar elements in the different figures will be designated by the same references.
    Referring firstly to Figure 1 schematically showing a sectional view and profile of an outer beam 1 of a motor vehicle composed of two parts welded or interconnected. The spar 1 extends longitudinally along one of the sides of the vehicle so that one can define on the spar an outer side 3 and an inner side 5. Typically the spar 1 is connected to a floor 7 of the vehicle . On its inner side 5, it can be connected to a seat cross 9. The spar 1 is protected on its outer side 3 by a skin 11 forming the underside. In the exemplary configuration shown, a door 13 extends vertically laterally to the spar 1 to cover the spar 1 over substantially its entire height. The door 13 is then called "covering". Figure 1 shows a configuration according to the prior art. It is understood that, in the event of a side impact, the absorption of the energy of the impact is made from the biasing of the spar 1 at its outer side 3 according to a slice referenced AE1 in FIG. 1. The invention is remarkable in that it will make it possible to anticipate the loading of the spar 1 and to start damping a shock earlier. Figure 2 illustrates a first variant of the invention, according to which a shock absorbing device is disposed in the doors 13 at the lower part, or lower, of the door box. In this first example, the shock absorbing device is a wedge 15 foam for example polyurethane. In such a case the foam is advantageously chosen to be dense and therefore has for this purpose a density of at least 80 g / l.
    The shim 15 may also be made of ribbed composite material. For example thermoplastic or thermosetting material. The material chosen is preferably composed of a polymer matrix reinforced for example with fibers. Those skilled in the art will benefit from selecting the polymer matrix from among one or more materials selected from polypropylene (PP), polyphthalamide (PPA), polyetheretherketone (PEEK), phenylene polysulfide (PPS), polyamide-imide (PAI) ), polyetherimide (PEI), polyarylamide (PAA), or polyamide (PA) such as, for example, polyamide 6 (PA 6 or polycaprolactam) or polyamide 6.6 (PA 6.6 or polyhexamethylene adipamide), or from polyepoxide resins unsaturated polyester resins, vinylester resins, copolymers such as polyester-vinylester resins.
    The reinforcing fibers may be organic or inorganic, and may comprise fibers or a blend of fibers selected from glass, carbon, ceramic, graphite, natural fibers such as flax, hemp or bamboo fibers. organic polymers such as polyester fibers. Preferably, the fibers are glass and / or carbon fibers.
    The manufacture of the absorption device can be done according to the known techniques of BMC (Bulk Molding Compound) or SMC (Sheet Molding Compound) for example.
    The shim can also be made of ribbed composite material filled with foam.
    It is understood that the absorption of the shock will begin before the spar 1 is stressed, according to an energy absorption slice AE2 which starts at the door of the vehicle.
    The distance "d" of additional absorption will increase the energy absorption efficiency at the beginning of shock, which improves the behavior of the vehicle in case of side impact. In a perspective where it would not be desired to improve this particular behavior, the invention makes it possible to implant elements of the passenger compartment closer to the outer spar or to reduce the mass of the body reinforcements with respect to the art. prior.
    In Figure 3, we can see that the wedge 15 is an object easily manipulated by an editor. One of the advantages of the invention is that the absorption device is installed without it being necessary to modify the production line of the vehicles in its robotic part. The wedge 15 can indeed be introduced into the door box manually, through the inner opening of the door. The shim 15 can be simply placed at the bottom of the box. According to a preferred embodiment of the invention it is glued to the bottom of the box.
    FIGS. 4 and 5 illustrate a second embodiment of the invention, according to which the shock absorber device 17 comprises a spacer system 19 made of a thermoplastic or thermosetting composite material, preferably reinforced with fibers and as defined more high. Advantageously, the spacers 19 are interconnected by at least one tube 21 and / or at least one bar made of composite material or metal which pass through them and on which they are glued. Those skilled in the art will preferentially choose a tube or a metal bar, for example steel or aluminum, because they will have more deformation (without breaking) capabilities than the tubes or bars of composite material. Preferably the device 17 comprises only one tube 21. The absorption of the shock offered by the tube or the bar 21 is completed by the spacers 19 regularly spaced along its length. In Figure 5, the device comprises four spacers, but it is understood that this number may vary. Advantageously, the device will comprise three spacers. The fact of sticking the spacers 19 on the tube or bar 21 will allow to keep their spacing during the manipulations of the device to insert it into the door box and thus to ensure optimal positioning of the spacers 19.
    Figures 6 and 7 illustrate a third embodiment of the invention according to which the shock absorbing device is in the form of a profile 23 of composite material or metal forming a reinforcement. The profile is for example with an omega-shaped section, whose branches extend horizontally to optimize their performance in terms of shock absorption.
    It goes without saying that the embodiments of absorption devices according to the invention are not limiting, and that other devices can be envisaged provided that they can be inserted in the lower part of the door box and that they are able to absorb shocks. Preferably, and whatever the device used, that is manipulable by an editor and can be glued or welded in the lower part of the door box.
    Referring now to Figure 8 showing another vehicle configuration to which the invention applies. In this configuration, the door 25 does not cover or only partially the outer spar. This is a conventional configuration in which the body side is said to "open" in that its outer skin 27 is placed in surface continuity with the bottom of the door 25. It is thus defined a chamber 29 between the outer spar and the rocker skin 27 which extends in the longitudinal direction of the vehicle.
    According to a fourth exemplary embodiment of the invention, illustrated in FIG. 9, a shock absorbing device is disposed in the door of the vehicle and preferably an additional shock absorbing device is placed in the bottom chamber 29. checkout. In this example, the shock absorbing device of the door is a wedge 15 and that in the rocker chamber is a profile 23 shaped irregular omega. It is understood that other combinations of devices are conceivable by those skilled in the art. Advantageously, the device disposed in the chamber 29 of the sill is glued or welded to the outer face of the outer side 3 of the spar 1. It will be understood that the objective is to begin the absorption of the shock before the spar 1 is sought. In general, the shock absorbing device disposed in the door of the vehicle is preferably arranged and / or dimensioned to be placed opposite the door step so as to also offer protection.
    According to the invention, it is possible to place several absorption devices in the door and / or in the sill chamber, as shown in FIG. 10. In this fifth embodiment, the profile 23 arranged in the chamber rocker 31 is associated with spray foam 31. The foam 31 will stabilize the section 23 preventing any risk of bending up or down, while providing additional energy absorption. Moreover, it offers a gain of quality in acoustic material by attenuating any vibrations.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    A motor vehicle comprising outer spars (1) and side doors (13, 25) each comprising a box, the vehicle being characterized in that it further comprises at least one shock absorbing device (15, 17). , 23) arranged in the lower part of the door casing of at least one door (13, 25) and in that the device or devices (15, 17, 23) are arranged to be placed at least partially opposite to one of said outer longitudinal members (1).
    [2" id="c-fr-0002]
    2. Vehicle according to claim 1 characterized in that the shock absorbing device comprises a shim (15), preferably the shim (15) is made of foam and / or ribbed composite material.
    [3" id="c-fr-0003]
    3. Vehicle according to one of claims 1 or 2 characterized in that the shock absorbing device comprises a system (17) of spacers, preferably said system (17) comprises at least one or more spacers (19). interconnected by at least one tube and / or at least one bar (21) passing through them.
    [4" id="c-fr-0004]
    4. Vehicle according to one of claims 1 to 3 characterized in that the shock absorbing device comprises a reinforcement (23), preferably in the form of profile, metal or composite material.
    [5" id="c-fr-0005]
    5. Vehicle according to one of claims 1 to 4, characterized in that it comprises doors (13) extending in the vertical direction down to cover the underside (11) on substantially all its height.
    [6" id="c-fr-0006]
    6. Vehicle according to one of claims 1 to 5, the vehicle comprising a sill (27) opening in that it comprises an outer skin being in surface continuity with the bottom of the door (25) and defining a chamber (29), between the outer spar and said outer skin, extending in the longitudinal direction of the vehicle, the vehicle being characterized in that it further comprises at least one shock absorbing device (23, 31) disposed in said chamber (29).
    [7" id="c-fr-0007]
    7. Vehicle according to one of claims 1 to 6 characterized in that the shock absorbing device (15, 17, 23) of the door (13, 25) is arranged and / or dimensioned to extend in height to stand next to the door.
    [8" id="c-fr-0008]
    8. Vehicle according to one of claims 1 to 7 characterized in that the door (13, 25) is a vehicle front door, preferably the front door driver's side.
    [9" id="c-fr-0009]
    9. Vehicle according to one of claims 1 to 8 characterized in that at least one shock absorbing device (15, 17, 23) is glued or welded in the bottom of the door box and / or in the room underbody.
    [10" id="c-fr-0010]
    10. Vehicle according to one of claims 1 to 9 characterized in that it further comprises foam (31) sprayed on at least one side of the shock absorbing device (15, 17, 23).
    类似技术:
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    同族专利:
    公开号 | 公开日
    FR3050705B1|2021-09-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2567460A1|1984-07-13|1986-01-17|Daimler Benz Ag|Impact absorbing car door|
    EP0426648A2|1989-11-02|1991-05-08|Austria Metall Aktiengesellschaft|Vehicle door for motor-car|
    DE19538844A1|1995-10-19|1997-04-24|Ymos Ag Ind Produkte|Side body panel for motor vehicles|
    DE19755935A1|1996-12-16|1998-06-18|Hyundai Motor Co Ltd|Broadside collision protector for side doors of motor vehicles|
    EP0879720A2|1997-05-23|1998-11-25|Daimler-Benz Aktiengesellschaft|Side impact protection|
    US20130168997A1|2011-12-28|2013-07-04|Honda Motor Co., Ltd|Vehicular door|
    DE102013009923A1|2013-06-13|2014-03-27|Daimler Ag|Side door for passenger car, has support element with predetermined-failure point, at which accidental application of force is deformed inwards under pivoting in vehicle transverse direction|US20170326954A1|2014-11-27|2017-11-16|Autotech Engineering A.I.E.|Reinforced vehicle door against side impact|
    EP3770045A1|2019-07-23|2021-01-27|Mazda Motor Corporation|Vehicle-body structure of vehicle, and vehicle|
    EP3770047A1|2019-07-23|2021-01-27|Mazda Motor Corporation|Vehicle-body structure of vehicle, and vehicle|
    EP3770043A1|2019-07-23|2021-01-27|Mazda Motor Corporation|Vehicle-body structure of vehicle, and vehicle|
    法律状态:
    2017-03-21| PLFP| Fee payment|Year of fee payment: 2 |
    2017-11-03| PLSC| Search report ready|Effective date: 20171103 |
    2018-03-22| PLFP| Fee payment|Year of fee payment: 3 |
    2020-03-19| PLFP| Fee payment|Year of fee payment: 5 |
    2021-03-23| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1653879A|FR3050705B1|2016-04-29|2016-04-29|VEHICLE WITH SIDE REINFORCEMENTS AT THE BOTTOM OF THE DOOR|FR1653879A| FR3050705B1|2016-04-29|2016-04-29|VEHICLE WITH SIDE REINFORCEMENTS AT THE BOTTOM OF THE DOOR|
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