• 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:
    Reinforcement element (10) for a body (1) of a motor vehicle comprising means of protection (30, 31, 40, 41, 42) against impact from the rear of the vehicle, characterized in that it comprises at least two tubes (20, 22) to be positioned generally in the direction of the length of the vehicle, as well as a rigid contact surface (30, 31, 70) directed towards the rear, the rigid contact surface (30, 31, 70 ) and the two tubes (20, 22) being arranged vis-a-vis the other to allow the movement of the vehicle in case of impact from the rear.
    公开号:FR3054817A1
    申请号:FR1657487
    申请日:2016-08-02
    公开日:2018-02-09
    发明作者:Marc Peru；Richard Zeitouni
    申请人:Peugeot Citroen Automobiles SA；
    IPC主号:
    专利说明:

    Holder (s): PEUGEOT CITROEN AUTOMOBILES SA Société anonyme.
    Extension request (s)
    Agent (s): PEUGEOT CITROEN AUTOMOBILES SA Public limited company.
    MODULAR REINFORCEMENT MEMBER FOR A MOTOR VEHICLE BODY FOR PROTECTION IN THE EVENT OF REAR OR LATERAL SHOCK
    FR 3 054 817 - A1 (57) Reinforcement element (10) for body (1) of a motor vehicle comprising means of protection (30, 31, 40, 41, 42) against impact from the rear of the vehicle, characterized in that it comprises at least two tubes (20, 22) to be positioned overall in the direction of the length of the vehicle, as well as a rigid contact surface (30, 31, 70) directed towards the rear, the surface rigid contact (30, 31,70) and the two tubes (20, 22) being arranged one opposite the other to allow the vehicle to move in the event of a rear impact.

    MODULAR REINFORCEMENT ELEMENT FOR A MOTOR VEHICLE BODY FOR PROTECTION IN THE EVENT OF REAR IMPACT OR SIDE IMPACT The invention is in the field of motor vehicle bodies, in particular electric or hybrid motor vehicles.
    These vehicles need to be protected in the event of an impact, in particular a rear impact, or a side impact.
    We are particularly interested in protection against rear impact called "offset 70%", for example at a speed of 80 km / h or high speed. It is a high energy shock. We are also interested in the class of impact known as "lateral side impact (centered on the rear)". It’s a very intrusive shock. These shock categories are not limiting for the purposes of this disclosure, but are mentioned by way of illustration.
    It is desired that the vehicles are well protected in the event of an impact, but nevertheless retain a lighter silhouette. We wish to develop vehicles with hybrid or electric propulsion using the ribs of compact rear units, with an increased wheelbase and a reduced rear overhang, and / or using existing rear suspension systems. We are also interested in using economical rear axle systems (rear axle with deformable cross member, in particular).
    In the case of the reuse of a rear axle with deformable crosspiece, for which one wishes to take over the body, it is necessary to add, for an electric vehicle two battery modules, in front of and behind the train, under the body of the vehicle, and for a hybrid vehicle, a battery module at the rear of the train and a fuel tank at the front of the train. These elements, placed right across the vehicle, must be protected in the event of a rear impact or a side impact.
    To meet these new constraints, the state of the art consists in strengthening existing designs in terms of the strength of the base. For example, one can insert a central spar for rear impact, or a continuous spar reinforcement and an internal reinforcement for side impact: this results in an increase in the mass of the structure, but also in questioning the rear unit, which involves costly investments for a new industrial installation. This also implies a higher mass.
    WO201286297 discloses a body structure with controlled buckling of a battery support frame. However, the support frame is not configured to stiffen the structure and allow the vehicle to move in the event of a rear impact.
    We therefore sought to design a system that meets the above constraints without having the defects mentioned.
    It is proposed in this context a reinforcing element for a motor vehicle body, the reinforcing element comprising means for protection against impact from the rear of the vehicle, characterized in that it comprises at least two tubes to be positioned overall in the direction of the length of the vehicle and to be fixed to the body as well as a rigid contact surface comprising impactors, the rigid contact surface being arranged opposite the two tubes to allow setting in motion of the vehicle in the event of a rear impact, the reinforcing element further comprising energy absorption means projecting from the rigid contact surface and to be positioned towards the rear of the vehicle, so that the impactors do not come into operation for said setting in motion unless the energy absorption means have been requested and overcome by such a rear impact.
    The invention can also include the following optional and advantageous characteristics:
    - a protective structure for a battery or a fuel tank which may be present under the vehicle body;
    - for each side of the vehicle, a rigid contact surface directed to the side to absorb the energy of a possible side impact;
    - a means of attachment to the adjustable body to adapt to the wheelbase of the vehicle;
    - three tubes to be positioned overall in the direction of the length of the vehicle, to stiffen the reinforcing element and transmit energy to the front; these three tubes to be positioned overall in the direction of the length of the vehicle, for example include two tubes to be placed between a rear axle and the body, and a third tube, intermediate between said two tubes, being such that the rear axle is at place between the body and said third tube;
    - on at least one of the tubes, a means of attachment to the bottom of the body, opposite the rigid contact surface.
    The reinforcing element can be made of steel or aluminum tubes.
    It is also proposed a motor vehicle with rear axle with deformable crosspiece, characterized in that it further comprises a reinforcing element according to the invention.
    This motor vehicle can include a first battery under the body and behind the rear axle and respectively a second battery or a fuel tank under the body and in front of the rear axle, the first battery and respectively the second battery or the tank to fuel being protected by the reinforcing element.
    The invention will be better understood, and other objects, characteristics, details and advantages thereof will appear more clearly in the explanatory description which follows, made with reference to the appended drawings given solely by way of example illustrating embodiments of the invention and in which:
    - Figure 1 shows a first version of a reinforcing element according to the invention, placed on an electric vehicle;
    - Figure 2 shows the same version, but implemented on a hybrid vehicle;
    - Figure 3 shows a second version, on a hybrid vehicle;
    - Figure 4 shows a third version on a hybrid vehicle equipped with two batteries.
    In Figure 1 is shown the rear part of the body 1 of a motor vehicle, seen from below. We can see in particular the batteries 2 and 3 placed under the interior surface of the body, across the vehicle, on either side of the rear axle 5. It is a rear axle with deformable cross member, which has the advantage of being economical.
    The vehicle is equipped with a reinforcing element 10 in the form of an arrangement of tubes welded to each other. It includes in particular longitudinal tubes 20, and 22, to the left of the vehicle, in the middle of the vehicle and to the right of the vehicle. The tube 21, intermediate between the tubes 20 and 22, is placed so that the batteries 2 and 3 and the train 5 are placed between the body 1 and the tube 21. The tubes 20 and 22 are in turn placed so '' be placed between the train 5 and the body 1.
    Towards the rear, the reinforcing element 10 comprises two side impactors 30 and 31 constituting a rigid contact surface, having a barrier function, for setting the vehicle in motion in the event of a rear impact. These two structures 30 and 31 are in the same position on each of the two sides of the body. They are connected by a tube of the structure, which will be discussed later.
    Even further back, the reinforcing element 10 comprises three absorbers 40, 41 and 42 having a role of absorbing energy in the event of a rear impact. They are able to deform to act as a buffer, and prevent the rest of the vehicle from receiving too much energy. They are mounted on sliding tubes so that their length is adapted to the rear overhang of the vehicle on which the reinforcing element is mounted. They project from the rigid surface defined by the impactors 30 and 31 and the tube connecting them. They are to be positioned towards the rear of the vehicle.
    The impactors 30 and 31 only come into operation if the absorbers 40, 41 and 42 have been stressed and overcome, by a highly energetic shock.
    The reinforcing element 10 comprises two fixing zones 50 and 51, respectively to the left and to the right of the vehicle. They allow, using for example a screw nut system, the fixing of the tubular frame, or reinforcing element, to the body and its adjustment according to the wheelbase of the vehicle. These attachment zones are essentially at the end of the longitudinal tubes 20 and 22.
    The reinforcing element 10 also includes side bars 60 and 61, fixed to the longitudinal tubes 20 and 22, and extending along the side of the body, to serve as reinforcement in the event of a side impact. They constitute rigid contact surfaces, directed to the side to absorb the energy of a side impact.
    The reinforcing element 10 also includes transverse tubes to hold its different elements together. There is a rear transverse tube 70, connecting the longitudinal tubes to each other at their rear ends, at the height of the impactors 30 and 31. There is a front transverse tube 72, connecting the longitudinal tubes to each other at their front ends, and an intermediate transverse tube 71, also connecting the three longitudinal tubes.
    Thus, there is an optimized tubular frame, or reinforcement element 10, similar to a frame, and acting for protection against rear impact and side impact. It strengthens the structure by stiffening it. It consists of steel tubes or aluminum profiles. The tubes are arranged to constitute a protective structure for a battery or a fuel tank present under the body, or several batteries and fuel tanks.
    The longitudinal tubes 20, 21 and 22 are positioned overall in the direction of the length of the vehicle, and, with the rigid contact surface directed towards the rear constituted by the impactors 30 and 31 and the transverse tube 70 connecting them , by their reciprocal arrangement (by welding or any other means of rigid immobilization of the tubes with respect to each other), allow the vehicle to be set in motion in the event of a rear impact.
    It causes the vehicle to move more quickly in the event of a rear impact, thanks to its general stiffness and to the function provided by the impactors 30 and 31, serving, combined with the rear transverse tube 70, as a thrust device thanks at their contact surface, which prevents too much energy from being absorbed into the vehicle. The optimized tubular frame, or reinforcing element, also provides an energy absorption capacity in the event of a side impact to protect the battery organs. Finally, it adapts to several layouts and is adjusted according to the wheelbase and the overhang of the vehicle's silhouette.
    In the end, this reinforcing element 10 improves the protection of the vehicle and is adjustable depending on the vehicle. Being a tubular structure, steel consumption is kept modest. We can gain, for example, 5 kg of steel compared to a conventional system comprising non-tubular reinforcements.
    Figure 2 shows that the structure of Figure 1 fits very easily on a vehicle comprising, instead of two batteries 2 and 3 (Figure 1), a battery 2 behind the train 5, and a fuel tank 4 in front of the train 5. The tank 4 is larger than the battery 3 but the reinforcing element 10 is adapted to adapt to its size and protect it.
    With this first version of the reinforcing element, the fragile organs (batteries and fuel tank) are protected in the event of a rear impact or a side impact against a pole.
    Optionally, the rear unit of the body can be lightened compared to the reference unit from which the model is developed, since the reinforcing element 10 reinforces it.
    Figure 3 shows a variant, derived from Figure 1, in which the longitudinal tubes 20 and 22 are extended towards the front of the vehicle. The tubes 20 and 22 are fixed by fixing zones 110 and 111 to the stretcher under the floor or bottom of the vehicle body, by any system, for example a screw-nut system. The tubes 20 and 22 are optionally flattened at the height of the fixing. They are not fixed by the previously described fixing zones 50 and 51 (Figure 1).
    The front transverse tube 72 is at a distance from the end of the longitudinal tubes 110 and 111, and near the fuel tank 4, or the intermediate transverse tube 71.
    The reinforcing element 10, in this variant, comprises lateral absorbers
    120 and 121, at the height of the front transverse tube 72, fixed to the longitudinal tubes 20 and 22, arranged horizontally and turned towards the outside of the vehicle. The lateral bars 60 and 61 are carried by these lateral absorbers 120 and 121. The lateral absorbers 120 and
    121 constitute a deformable zone of energy absorption in the event of a lateral impact against a post from the rear. They protect the battery 2 and the tank 4.
    In Figure 4, there is shown another variant, derived from that of Figure 3. In this variant, the longitudinal tubes 20, 21 and 22 are all three elongated, so as to accommodate the presence at 'before the train 5, of both a battery 3 and a tank 4, constituting a larger volume of organs. They are both placed under the body, the tank 4 being more forward than the battery 3. The transverse tube 72 is moved forward, as are the side absorbers 120 and 121.
    It is possible to add side absorbers 220 and 221 in duplicate with respect to the absorbers 120 and 121 already mentioned, between the longitudinal tubes 20 and 22 and the side bars 60 and 61. This makes it possible to absorb energy in the event of a violent impact with a side post, for example if the vehicle is heavy.
    It is specified that the reinforcing element 10 prevents the rear axle 5 from being subjected to an impact or an impact during rear impact, which then makes it possible to use a more economical rear axle 5, such as a train with a deformable cross member.
    The reinforcing element 10 has a modular use, since it adapts to 5 cases comprising batteries or reservoirs, in variable number, and that it adapts to cases of different dimensions (door false and wheelbase)
    权利要求:
    Claims (9)
    [1" id="c-fr-0001]
    1. Reinforcement element (10) for a body (1) of a motor vehicle, the reinforcement element comprising means of protection (30, 31, 40, 41, 42) against impact from the rear of the vehicle, characterized in that it comprises at least two tubes (20, 22) to be positioned overall in the direction of the length of the vehicle and to be fixed to the body (1), as well as a rigid contact surface (30, 31, 70) comprising impactors (30, 31), the rigid contact surface (30, 31, 70) being arranged opposite the two tubes (20, 22) to allow the vehicle to be set in motion in the event of impact by the rear, the reinforcing element further comprising energy absorption means (40, 41, 42) projecting from the rigid contact surface (30, 31, 70) and to be positioned towards the rear of the vehicle, so that the impactors (30, 31) do not operate for said setting in motion unless the energy absorption means (40, 41, 42) have been you were stressed and overcome by such a rear impact.
    [2" id="c-fr-0002]
    2. Reinforcement element according to claim 1, characterized in that it constitutes a protective structure for a battery or a fuel tank which may be present under the body of the vehicle.
    [3" id="c-fr-0003]
    3. Reinforcement element according to claim 1 or claim 2, characterized in that it comprises, for each side of the vehicle, a rigid contact surface (60, 61) directed towards the side to absorb the energy of a side impact.
    [4" id="c-fr-0004]
    4. Reinforcement element according to one of claims 1 to 3, characterized in that it comprises three tubes (20, 21, 22) to be positioned generally in the direction of the length of the vehicle, including two tubes (20, 22 ) are to be placed between a rear axle (5) of the vehicle and the body (1), and a third tube (21), intermediate between said two tubes, being such that the rear axle (5) is to be placed between the body (1) and said third tube (21).
    [5" id="c-fr-0005]
    5. Reinforcement element according to one of claims 1 to 4, characterized in that it comprises a fixing means (50, 51) for fixing to the adjustable body to adapt to the wheelbase of the vehicle.
    [6" id="c-fr-0006]
    6. Reinforcement element according to one of claims 1 to 4, characterized in that it comprises on at least one of the tubes, a fixing means (110, 111) at the bottom of the body.
    [7" id="c-fr-0007]
    7. Reinforcement element according to one of claims 1 to 6, characterized in that it consists essentially of steel or aluminum tubes.
    [8" id="c-fr-0008]
    8. Motor vehicle with rear axle (5) with deformable cross member, characterized in that it further comprises a reinforcing element (10) according to one of claims 1 to 7.
    5
    [0009]
    9. Motor vehicle according to claim 8, characterized in that it comprises a first battery (2) under the body and behind the rear axle (5), and respectively a second battery (3) or a fuel tank (4) under the body and in front of the rear axle (5), the first battery and respectively the second battery or the fuel tank being protected by the reinforcing element (10).
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    同族专利:
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    引用文献:
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    法律状态:
    2017-07-19| PLFP| Fee payment|Year of fee payment: 2 |
    2018-02-09| PLSC| Publication of the preliminary search report|Effective date: 20180209 |
    2018-07-20| PLFP| Fee payment|Year of fee payment: 3 |
    2019-07-22| PLFP| Fee payment|Year of fee payment: 4 |
    2020-07-21| PLFP| Fee payment|Year of fee payment: 5 |
    2021-07-22| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1657487A|FR3054817B1|2016-08-02|2016-08-02|MODULAR REINFORCING ELEMENT FOR AUTOMOTIVE VEHICLE CASE FOR PROTECTION IN THE EVENT OF REAR SHOCK OR LATERAL SHOCK|
    FR1657487|2016-08-02|FR1657487A| FR3054817B1|2016-08-02|2016-08-02|MODULAR REINFORCING ELEMENT FOR AUTOMOTIVE VEHICLE CASE FOR PROTECTION IN THE EVENT OF REAR SHOCK OR LATERAL SHOCK|
    PCT/FR2017/051838| WO2018024954A1|2016-08-02|2017-07-06|Adjustable reinforcing element for a motor vehicle body for protection in case of a rear impact or side impact|
    EP17746169.6A| EP3494028B1|2016-08-02|2017-07-06|Adjustable reinforcing element for a motor vehicle body for protection in case of a rear impact or side impact|
    US16/321,794| US11208149B2|2016-08-02|2017-07-06|Adjustable reinforcing element for a motor vehicle body for protection in case of a rear impact or side impact|
    CN201780048597.9A| CN109562790A|2016-08-02|2017-07-06|The adjustable reinforcing element of the vehicle body of motor vehicles for shielding in rear shock or lateral impact|
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