• 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 structure, comprising at least one sill (4) of sill comprising a section (6) of aluminum or aluminum alloy and at least one pole (8), such as a foot front, made of sheet steel extending substantially vertically from the spar (4), a portion of said post (8) covering a corresponding portion of the profile (6). The structure also comprises a reinforcement (18) made of sheet steel extending between the portion of the post (8) covering the profile (6) and the corresponding portion of the profile (6), said reinforcement (18) being fixed by clamping and / or mechanical engagement (181, 63) to the profile (6) and welding to the post (8).
    公开号:FR3024414A1
    申请号:FR1457581
    申请日:2014-08-04
    公开日:2016-02-05
    发明作者:Frederic Coiffier；Franck Kopec；Eric Lefevre；Andre Ting
    申请人:Peugeot Citroen Automobiles SA；
    IPC主号:
    专利说明:

    [0001] The invention relates to the field of motor vehicles, more particularly to the construction of structures or crates of motor vehicles.
    [0002] The published patent document FR 2 999 517 A1 discloses a construction of a sill spar for a motor vehicle, part of which consists of an aluminum profile. This spar is illustrated in FIG. 1. It can be observed that the central and generally straight portion 1041 of the spar 104 is made by the aluminum profile 106 while the front portions 1042 and 1043 rear, including including the foot or post before 108 and the foot or rear pole 110, are in turn made in conventional sheet steel. The connection between the section 106 and the front portions 1042 and 1043 rear are not detailed in this teaching. It seems that each of the front portions 1042 and 1043 rear extends longitudinally and covers a portion of the profile 106. These portions of spar seem to be fixed to the profile by fixing means of the type screwing or riveting 112. In case of impact to the front of the vehicle, part of the impact energy is transmitted by a so-called upper transmission path, that is to say resting on an upper part of the foot or post before 108. The connection between this front foot 108 and the profile 106 is a weak point to the point that the front foot 108 can bend deformed at its lower part to the point of pouring backwards. The published patent document FR 2 923 203 B1 addresses the problem of reinforcing a front foot of a cabriolet-type vehicle structure and for this purpose provides a reinforcement piece which is formed with a hollow element of the front foot, and this by hot stamping. The reinforcing element forms the bent part of the front foot. It is previously fixed by welding to a sheet blank which is then heated to 800 ° C-900 ° C to be then stamped and cut. The front foot thus comprises a hollow element provided with a reinforcing element directly shaped with the hollow element. This solution is interesting in that it proposes a strengthening of the bent portion of the front foot. However, it is not useful for reinforcement of a spar according to the preceding teaching, the weak point of which is at the level of the connection between the section and the front foot which are made of different materials and incompatible with one another. metallurgical view. The object of the invention is to propose a construction of a motor vehicle frame spar that is light, rigid and capable of satisfactorily absorbing forward shocks transmitted by the upper track of the structure. The invention relates to a motor vehicle structure, comprising: at least one sill spar comprising a section of aluminum or aluminum alloy; at least one steel sheet pole extending substantially vertically from the spar, a portion of said post covering a corresponding portion of the profile; remarkable in that it further comprises a steel sheet reinforcement extending between the portion of the post covering the profile and the corresponding portion of the profile, said reinforcement being fixed by clamping and / or mechanical engagement to the profile and by welding to the pole. The extent of the reinforcement is preferably not limited to the portion of the post 15 covering the profile and the corresponding portion of the profile. Preferably, it extends beyond this portion so as to be fixed to the pole in areas of said pole which are outside the portion of the column covering the section. The welds can be point or line. They are preferably of the type with electrical resistance. The aluminum or aluminum alloy profile is preferably extruded. It preferably comprises a constant section. The post preferably forms an elbow connected to the spar. The reinforcement is preferably located mainly in the elbow in question. According to an advantageous embodiment of the invention, the post is a front post extending essentially vertically from a front end of the spar. The front post is also commonly called the front foot. According to an advantageous embodiment of the invention, the reinforcement extends mainly in a vertical and longitudinal plane, or forming an angle of less than 10 ° with each of the vertical and longitudinal directions.
    [0003] According to an advantageous embodiment of the invention, the post is formed by at least two hollow elements assembled to one another along edges forming a front assembly rabbet and a rear assembly rabbet, the reinforcement extending into the rear rabbet and / or the front rabbet.
    [0004] According to an advantageous embodiment of the invention, the reinforcement comprises at least one notch at the level of the front rabbet and / or the rear rabbet, the edges of the at least two hollow elements forming the pole being directly welded to one another. another in said at least one of said notches. According to an advantageous embodiment of the invention, the edges of the at least two hollow elements forming the post form with a lower edge of the profile a lower assembly rabbet, said edge of the profile comprising at least one notch and the reinforcement comprising at least one tab extending substantially vertically in said rabbet facing said one or more notches, respectively, so as to be welded (s) to the hollow element of the post disposed on the side of the edge of the profile opposite the reinforcement. According to an advantageous embodiment of the invention, the profile comprises an upper edge forming, with the edges of the hollow elements forming the pole, an upper rebate, said edge of the profile comprising at least one notch in which the edge or the hollow element located laterally on the inner side is welded directly to the hollow element located laterally on the outer side or to a body side covering said outer element. According to an advantageous embodiment of the invention, the section of aluminum or aluminum alloy has a generally flat outer side face, the reinforcement extending against said face.
    [0005] According to an advantageous embodiment of the invention, one of the at least two hollow elements forming the post is disposed laterally on the outside of the vehicle and another of said elements is disposed laterally on the inside of the vehicle, the reinforcement extending between the side face. outer profile and outer element. According to an advantageous embodiment of the invention, the reinforcement comprises one or more ribs capable of stiffening said reinforcement, said rib or ribs being formed by deformation of a sheet metal element constituting the reinforcement. The measurements of the invention are interesting in that they make it possible to achieve efficient, simple and light reinforcement between two elements made of materials which are incompatible from a metallurgical point of view. Other features and advantages of the present invention will be better understood from the description and the drawings, in which: FIG. 1 is a perspective view of a straight spar, viewed from its inside, according to FIG. state of the art; FIG. 2 is a side view of the front foot of the spar of FIG. 1, illustrating a spill phenomenon in the event of an impact at the front; Figure 3 is an exploded view of the front portion of the spar of a structure according to the invention; FIG. 4 is a side view of the connection zone between the spar and the front foot of the structure of FIG. 3, without the body side and without the outer hollow element of the front foot. Figure 1 has been described in the prior art section. FIG. 2 is a side view of the front portion of the spar of FIG. 1, illustrating the swiveling and dumping phenomenon observed in the event of transmission of forces by the upper track in the event of an impact at the front of the vehicle. . Indeed, in the event of an impact at the front of the vehicle, part of the forces of the impact is transmitted by the element 116 connected to the upper part of the foot or post before 108. This is the track superior force transmission. Another part of the forces can be transmitted by the front wheel (not shown) bearing on the front end of the beam 104. This is the lower track. A casing embossing forming a body side 114 covers the spar 104 and the front foot 108. The forces transmitted by the element 116 exert a bending torque at the bottom of the front foot 108, this torque soliciting the connection between the foot before 108 and the spar, specifically the aluminum profile (not visible in Figure 2 but in Figure 1). This bending moment is likely to dump the front foot towards the rear, as shown in dotted line in FIG. 2. Such a spill is to be avoided if it is desired to maintain a certain integrity of the passenger compartment of the vehicle. .
    [0006] Figures 3 and 4 illustrate the front of the spar of a structure according to the invention, providing a solution to the spill problem mentioned above. Figure 3 is an exploded view of the front right portion of the vehicle structure according to the invention. This comprises, essentially, a spar 4 consisting of a profile 6 of aluminum or aluminum alloy, a front foot 8, a body side trim 14 and a reinforcement 18. The profile 6 preferably extends along most of the spar. It may have a constant section, in particular obtained by extrusion. The material of the profile 6 may be an aluminum alloy of the 6000 series. Such a profile is particularly interesting in that it is economical to produce. The necessary length can also be debited a greater length of the profile. The profile 6 has a section forming a preferentially closed profile, in this case a rectangular two-chamber profile, and with an upper free edge 61 and a lower free edge 62. These edges are intended to cooperate with corresponding edges of the other elements. components of the structure to form joining rebates. The front leg 8 is formed, essentially, by two hollow steel sheet elements, namely a first hollow element 81 located laterally on the inside of the vehicle, and a second hollow element 82 located laterally on the outside of the vehicle.
    [0007] The hollows of these two elements correspond to form a volume. Each of the hollow members 81 and 82 includes edges for superimposing to form joining rabbets. The reinforcement 18 is disposed against the lateral face of the aluminum profile which is directed towards the outside of the vehicle. The reinforcement 18 comprises orifices 181 intended to cooperate with corresponding orifices 63 made in the profile 6, in particular by means of rivets. It should be noted, however, that other fixing means of a mechanical nature, that is to say, compatible for a connection between elements made of materials that are incompatible from a metallurgical point of view, are conceivable. By way of example, the reinforcement 18 can be screwed to the profile 6 and / or have mechanical engagement surfaces with the profile 6.
    [0008] The reinforcement 18 extends substantially vertically and longitudinally between the outer face of the profile 6 and the outer hollow element 82 of the front foot 8. It is made of sheet steel, in particular by stamping and trimming. It comprises free edges intended to be found in the assembly grooves of the front foot 8 and the spar 4. It can then be fixed to said outer hollow element by means of electrical resistance weld points, at their respective free edges. . Figure 4 is a side view of the connection zone between the spar 4 and the front foot 8 of the structure of Figure 3, without the body side and without the outer hollow element of the front foot. It can be seen in FIGS. 3 and 4 that the edges of the hollow elements 81 and 82 of the front foot 8 form a rear assembly rabbet 20 and a front assembly rabbet 22. It can also be seen in FIG. 4 that the reinforcement 18 is present in the rear assembly rabbet 20, and more precisely that the corresponding edge of the reinforcement 18 has a notch 184 for joining directly and by welding the edges of the two hollow elements 81 and 82. It can also be observed at the 4 that, similarly, the reinforcement 18 is also present in the front assembly rabbet 22, and more specifically that the corresponding edge of the reinforcement 18 has a notch 182 for joining directly and by welding the edges of the two hollow elements 81 and 82. Figures 3 and 4 also show that the upper edge 61 of the aluminum profile 6 has several notches e allowing the corresponding edge of the hollow element x interior 81 to directly contact the edge vis-à-vis the body side dressing 14, thus forming an upper assembly rabbet 24. For this purpose, the outer hollow element 82 of the front foot can also also have corresponding notches. Similarly, Figures 3 and 4 also show that the lower edge 62 of the aluminum profile 6 has a notch 65 allowing the corresponding edge of the inner hollow member 81 to directly contact the edge vis-à-vis the covering 14 body side or outer hollow member 82.
    [0009] 302 44 14 7 The reinforcement 18 is fixed to the outer hollow element 82 of the front foot 8 by electrical resistance welding along the rear rabbets 20 and before 22. The lower edge of the reinforcement 18 may have one or more tabs 183 s' extending, preferably substantially vertically, into a lower assembly rabbet 26. The corresponding edge of one of the hollow elements 81 and 82 of the front foot may comprise one or more recesses adapted to receive the tab or legs in question. The reinforcement 18 may comprise moldings or ribs 185 configured to stiffen it. They are preferably made of material with the reinforcement, more preferably made by stamping a portion of steel sheet constituting the reinforcement. FIG. 4 illustrates in thicker lines an alternating reinforcing contour 18 '. Unlike the reinforcement 18, the contour of the alternating reinforcement 18 'extends further along the lower assembly rabbet 26, ie towards the rear of this rabbet, so as to overlap the notch 65 of the profile. 6 and for example to integrate a support function of a lifting jack.
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. Motor vehicle structure, comprising: - at least one side sill (4) comprising a section (6) made of aluminum or aluminum alloy; at least one steel sheet post (8) extending essentially vertically from the spar (4), a portion of said post covering a corresponding portion of the profile; characterized in that it further comprises: a reinforcement (18) of sheet steel extending between the portion of the post (8) covering the profile (6) and the corresponding portion of the profile (6), said reinforcement (18) being fixed by clamping and / or mechanical engagement (18 ', 6) to the profile (6) and by welding to the post (8).
    [0002]
    Motor vehicle structure, according to claim 1, characterized in that the post is a front post (8) extending substantially vertically from a front end of the spar (4).
    [0003]
    3. Motor vehicle structure, according to one of claims 1 and 2, characterized in that the reinforcement (18) extends mainly in a vertical and longitudinal plane, or forming an angle of less than 10 ° with each of vertical and longitudinal directions.
    [0004]
    Motor vehicle structure according to one of Claims 1 to 3, characterized in that the post (8) is formed by at least two hollow elements (81, 82) assembled together. edges forming a front assembly rabbet (22) and a rear assembly rabbet (20), the reinforcement (18) extending into the front rabbet (22) and / or the rear rabbet (20).
    [0005]
    5. Motor vehicle structure according to claim 4, characterized in that the reinforcement (18) comprises at least one notch (182, 184) at the front rabbet (22) and / or the rear rabbet (20). ), the edges of the at least two hollow members (81, 82) forming the pole (8) being directly welded to each other in said or at least one of said notches (182, 184).
    [0006]
    6. Motor vehicle structure according to one of claims 4 and 5, characterized in that the edges of the at least two hollow elements (81, 82) forming the pole (8) form with a lower edge (62) of the profile (6) a lower assembly rabbet (26), said edge (62) of the profile (6) comprising at least one notch (65) and the reinforcement (18) comprising at least one tab (183) extending essentially vertically in said rabbet (26) opposite said one or more notches (65), respectively, so as to be welded to the hollow member (81) of the post (8) disposed on the edge side (62) of the profile (6) opposite the reinforcement (18).
    [0007]
    Motor vehicle structure according to one of Claims 4 to 6, characterized in that the profile (6) comprises an upper edge (61) forming, with the edges of the hollow elements (81, 82) forming the pole. (8), an upper assembly rabbet (24), said edge (61) of the profile (6) comprising at least one notch (64) in which the edge of the hollow element (81) located laterally on the side interior is welded directly to the hollow member (82) located laterally on the outside or to a body side (14) covering said outer member (82).
    [0008]
    8. Motor vehicle structure according to one of claims 1 to 7, characterized in that the profile (6) of aluminum or aluminum alloy has a generally flat outer side face, the reinforcement (18) s' extending against said face.
    [0009]
    Motor vehicle structure according to one of Claims 4 to 7 and Claim 8, characterized in that one (82) of the at least two hollow elements (81, 82) forming the post (8) is arranged laterally on the outside of the vehicle and another (81) of said elements (81, 82) is arranged laterally on the inside of the vehicle, the reinforcement (18) extending between the outer side face of the profile (6) and the outer member (82).
    [0010]
    10. Motor vehicle structure, according to one of claims 1 to 9, characterized in that the reinforcement (18) comprises one or more ribs (185) adapted to stiffen said reinforcement, said rib or ribs (185) being formed by deformation of a sheet metal element constituting the reinforcement.
    类似技术:
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    同族专利:
    公开号 | 公开日
    CN106660588B|2018-10-26|
    CN106660588A|2017-05-10|
    WO2016020591A1|2016-02-11|
    EP3177507A1|2017-06-14|
    FR3024414B1|2016-08-26|
    EP3177507B1|2018-09-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US6283539B1|1997-02-28|2001-09-04|Audi Ag|Channel with reinforcing insert of a motor vehicle|
    US6293617B1|1998-10-15|2001-09-25|Honda Giken Kogyo Kabushiki Kaisha|Extruded material frame connection structure for vehicle|
    EP1132280A1|2000-03-10|2001-09-12|Nissan Motor Co., Ltd.|Body structure for vehicle|
    FR2999517A1|2012-12-19|2014-06-20|Peugeot Citroen Automobiles Sa|Longeron for rocker panel on side of passenger compartment of motor vehicle, has front and rear longerons including one part having hollow and closed extruded section made of aluminum or aluminum based alloy|WO2019135034A1|2018-01-04|2019-07-11|Psa Automobiles Sa|Vehicle equipped with a jacking point in the front pillar reinforcement, and jacking point for such a vehicle|
    WO2020128178A1|2018-12-21|2020-06-25|Psa Automobiles Sa|Front rocker panel structure reinforcement with integrated jack support function|
    FR3096335A1|2019-05-24|2020-11-27|Psa Automobiles Sa|Stiffening insert for a vehicle body|
    FR3111320A1|2020-06-16|2021-12-17|Psa Automobiles Sa|Spar reinforcement for motor vehicle|US4944553A|1989-06-30|1990-07-31|Chrysler Corporation|Vehicle reinforcing structure|
    FR2923203B1|2007-11-06|2010-04-16|Peugeot Citroen Automobiles Sa|FRONT FOOT FOR A BODY STRUCTURE OF A MOTOR VEHICLE AND METHOD FOR MANUFACTURING SUCH FOOT FRONT|
    CN202449069U|2011-12-31|2012-09-26|浙江吉利汽车研究院有限公司|Novel A-pillar structure|
    CN203666780U|2013-12-25|2014-06-25|安徽江淮汽车股份有限公司|High-strength steel frame structure and car body|DE102016118891A1|2016-10-05|2018-04-05|Dr. Ing. H.C. F. Porsche Aktiengesellschaft|body component|
    法律状态:
    2015-07-27| PLFP| Fee payment|Year of fee payment: 2 |
    2016-02-05| PLSC| Search report ready|Effective date: 20160205 |
    2016-07-20| PLFP| Fee payment|Year of fee payment: 3 |
    2017-07-20| PLFP| Fee payment|Year of fee payment: 4 |
    2018-06-29| CA| Change of address|Effective date: 20180312 |
    2018-06-29| CD| Change of name or company name|Owner name: PEUGEOT CITROEN AUTOMOBILES SA, FR Effective date: 20180312 |
    2018-07-20| PLFP| Fee payment|Year of fee payment: 5 |
    2020-05-08| ST| Notification of lapse|Effective date: 20200406 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1457581A|FR3024414B1|2014-08-04|2014-08-04|VEHICLE STRUCTURE WITH REINFORCEMENT BETWEEN ALUMINUM LONGERON AND FRONT FOOT|FR1457581A| FR3024414B1|2014-08-04|2014-08-04|VEHICLE STRUCTURE WITH REINFORCEMENT BETWEEN ALUMINUM LONGERON AND FRONT FOOT|
    EP15744274.0A| EP3177507B1|2014-08-04|2015-07-16|Vehicle structure with reinforcement between aluminium sill and front hinge pillar|
    CN201580042106.0A| CN106660588B|2014-08-04|2015-07-16|Vehicle structure with reinforcer between aluminium longeron and front stempoda|
    PCT/FR2015/051955| WO2016020591A1|2014-08-04|2015-07-16|Vehicle structure with reinforcement between aluminium sill and front hinge pillar|
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