WO2017129867A1 - Vehicle body having a reinforced roof - Google Patents
Vehicle body having a reinforced roof Download PDFInfo
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- WO2017129867A1 WO2017129867A1 PCT/FR2016/053308 FR2016053308W WO2017129867A1 WO 2017129867 A1 WO2017129867 A1 WO 2017129867A1 FR 2016053308 W FR2016053308 W FR 2016053308W WO 2017129867 A1 WO2017129867 A1 WO 2017129867A1
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- roof
- vehicle body
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- lateral
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/06—Fixed roofs
Definitions
- the invention relates to the field of motor vehicles. More specifically, the invention relates to motor vehicles whose body includes a roof with panoramic roof, opening or fixed, a panoramic roof extending over most or almost the entire roof.
- US 91 8091 7 describes an example panoramic sunroof, comprising a frame for supporting a glazing element, the frame being secured to the body of the motor vehicle by means of an armature.
- the establishment of a panoramic roof can affect the stiffness of the body, and thus reduce the torsional rigidity of the body, degrading the dynamic behavior of the vehicle.
- An object of the invention is to provide a vehicle body overcomes these disadvantages.
- Another object of the invention is to provide motor vehicles comprising a panoramic roof, these vehicles offering high acoustic comfort.
- a motor vehicle body comprising a structure adapted to support a panoramic roof, this structure being reported in an opening of the vehicle body, the opening being defined by two roof arches extending substantially along a longitudinal axis of the motor vehicle, a front cross member and a rear cross member extending substantially transversely to the longitudinal axis of the motor vehicle, the structure being provided with at least one pair of lateral supports spaced from each other and interconnected by a central arch, the lateral supports respectively extending substantially parallel to the roof arches from the front cross member while the central arch extends substantially parallel to the rear cross member, each lateral support of the structure comprising an extension extending from the central arch and extending the lateral support until 'to the rear crossmember.
- such a structure makes it possible to stiffen a motor vehicle body and to limit the vibrations generated. by road solicitations, as well as the acoustic resonance induced by these vibrations.
- the structure gives the box on which it is mounted a stiffness equivalent to the stiffness of a vehicle body not equipped with a panoramic roof.
- the invention relates, in a second aspect, to a vehicle body comprising a structure as shown above, the extensions constituting one end of the lateral supports resting on the rear cross member, so as to be secured to it, the supports resting at their opposite end on the front cross member, so as to be secured.
- the fixing of the lateral supports on the body is thus carried out in zones having a high rigidity.
- the extensions are in one piece with the supports and constituted by the ends of said supports extending beyond the central arch to the rear crossmember.
- the lateral supports comprise a rim resting on the roof arches
- a panoramic roof is housed in a first enclave, delimited by the front cross member, the central arch and the lateral supports;
- the panoramic roof is fixed or has an opening
- the front cross member is an upper windshield rail
- the rear crossmember is an upper transom of rear window
- the body comprises a sheet between the central arch and the rear cross.
- FIG. 1 is a perspective view of a motor vehicle (in dashed lines) comprising a body (in continuous bold lines) and a panoramic roof;
- FIG. 1 is an exploded perspective view of the body of Figure 1;
- FIG. 3 is an exploded perspective view of a portion of the box shown in Figure 2;
- FIG. 4 is a top view of a panoramic roof, according to one embodiment.
- Figure 1 a vehicle 1 automobile (in dashed lines) comprising a box 2 (in continuous bold lines) including a flag 3, a panoramic roof 4 being arranged in this flag 3.
- an axis X defining a longitudinal, horizontal direction coinciding with the general direction of movement of the vehicle
- a Y axis defining a transverse, horizontal direction which, with the X axis, defines a horizontal XY plane;
- the terms “longitudinal” or “longitudinally” refer to a direction coincident with the X axis
- the terms “transverse” or “transversely” are reference to a direction coincident with the Y axis
- the terms “vertical” or “vertically” refer to a direction coincident with the Z axis.
- the body 2 comprises a front block and a rear block, the front block being associated with a front axle, while the rear block is associated with a rear axle, the two axles carrying the wheels 5 of the 1 car vehicle.
- the front block and the rear block are connected in the lower part of the body 2 by a base 6, and laterally by two sides 7 cockpit.
- a passenger compartment 9 is delimited by the front block, the rear block, the base 6, the sides 7 cabin and roof 4 panoramic.
- the interior sides 7 each comprise two openings 10, separated by a foot 1 1 medium, and an arc 12 of flag.
- the body 2 comprises a front transverse 13 and a transverse cross 14 transverse.
- the cross 13 is a front cross member of the windshield, and the cross 14 is a rear cross member of the rear window.
- the panoramic roof 4 is fixed. In other embodiments, not shown, the panoramic roof comprises an opening.
- the panoramic roof 4 comprises a structure 8 comprising a central hoop 16 and two lateral supports 17.
- the structure 8 is fixed on the roof arches 12 and crosses 13, 14 front and rear, for example by welding.
- the panoramic roof 4 comprises a glazing element 18, surrounded by a seal 19 and a frame 20.
- the glazing element 18 is made of mineral or organic glass.
- the seal 19 makes it possible to seal the roof 4 panoramic, thus avoiding any water leak inside the passenger compartment 9.
- each element constituting the structure 8 is made from a stamped metal sheet.
- the lateral supports 17 comprise a flange 21, extending advantageously over the entire length of the lateral supports 17, and are thus able to bear on the arches 12 flag.
- Each lateral support 17 comprises two ends 22, 23, adapted to bear respectively on the cross 13 before and the cross 14 back.
- the central arch 16 includes edges 24, able to bear on the lateral supports 17 to be secured.
- the central arch 16 is disposed between the crosspieces 13, 14 front and rear, so as to form a first enclave 25 and a second enclave 26.
- the first enclave 25 is delimited by the cross member 13 before, forming the windshield upper rail, the central arch 16 and the lateral supports 17 extending from the crossbar 13 to the central arch 16.
- the first enclave 25 houses the frame 20 of the panoramic roof 4.
- the central arch 16 does not extend substantially between the central feet 1, e but is placed towards the rear of the body, relative to these central feet 1 1.
- the panoramic roof 4 can be fixed or include an opening.
- the second enclave 26 is defined by the central arch 16, the rear cross member 14 and extensions 27 of the lateral supports 17. These extensions 27 of the lateral supports 17 extend said supports beyond the central arch 6 and come to rest and are fixed, for example by welding, in the rear part of the body.
- An extension 27 may be in one piece with a lateral support or be attached to the end of such a support between the end of the lateral support fixed on the central arch and the rear cross member.
- a sheet is placed on the body flag, covering the second enclave 26.
- the body 2 is deformed according to its torsional stiffness, the torsional stiffness in nm / deg and defining the torque needed to twist the body 2 of a degree .
- a stiffness of body too low causes a displacement of the points of attachment of the suspensions, modifies the kinematics of the suspensions, these displacements being detrimental to the good behavior of road of a motor vehicle, and being able to cause other undesirable effects, like vibrations and acoustic resonances.
- the torsional stiffness of the motor vehicle provided with a panoramic roof and comprising a structure according to the invention is similar to that of a similar motor vehicle, but with a sheet metal roof.
- the adjustment of the trains of a motor vehicle is adapted to the torsional stiffness of the body, and a single adjustment is thus implemented for vehicles produced, with or without a panoramic roof.
- the lateral supports 17 create a structure that stiffens the roof arches 12 over the length of the roof. first enclave 25 but also along the length of the second enclave 26, thanks to the extensions 27.
- the structure that has just been described increases the natural frequency of dynamic torsion of the body, bringing stiffness to the pavilion panoramic roof box.
- each clean mode of a body has a modal deformed and a natural frequency.
- the dynamic behavior of the vehicle, and in particular the vibratory comfort, is related to the body torsion.
- the structure just described increases the torsional frequency of the body, of the order of a few Hz, with respect to a longitudinal axis, without excessive mass.
- the acoustic comfort of the passengers of the vehicle is improved.
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- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
CAISSE DE VEH I CULE A PAVI LLON RENFORCE BOX OF VEH I CULE A PAVI LLON REINFORCED
[0001 ] L'invention a trait au domaine des véhicules automobiles. L'invention concerne, plus précisément, les véhicules automobiles dont la caisse comprend un pavillon à toit panoramique, ouvrant ou fixe, un toit panoramique s'étendant sur la plus grande partie, voire sur la quasi-totalité du toit. The invention relates to the field of motor vehicles. More specifically, the invention relates to motor vehicles whose body includes a roof with panoramic roof, opening or fixed, a panoramic roof extending over most or almost the entire roof.
[0002] Le document US 91 8091 7 décrit un exemple de toit ouvrant panoramique, comprenant un cadre pour supporter un élément de vitrage, le cadre étant solidaire de la caisse du véhicule automobile au moyen d'une armature. US 91 8091 7 describes an example panoramic sunroof, comprising a frame for supporting a glazing element, the frame being secured to the body of the motor vehicle by means of an armature.
[0003] La mise en place d'un toit panoramique peut affecter la raideur de la caisse, et ainsi réduire la rigidité en torsion de cette caisse, dégradant le comportement dynamique du véhicule. The establishment of a panoramic roof can affect the stiffness of the body, and thus reduce the torsional rigidity of the body, degrading the dynamic behavior of the vehicle.
[0004] Un objet de l'invention est de proposer une caisse de véhicule palliant ces inconvénients. An object of the invention is to provide a vehicle body overcomes these disadvantages.
[0005] Un autre objet de l'invention est de proposer des véhicules automobiles comprenant un toit panoramique, ces véhicules offrant un confort acoustique élevé. Another object of the invention is to provide motor vehicles comprising a panoramic roof, these vehicles offering high acoustic comfort.
[0006] A cet effet, il est proposé, en premier lieu, une caisse de véhicule automobile comprenant une structure apte à supporter un toit panoramique, cette structure étant rapportée dans une ouverture de la caisse de véhicule automobile, l'ouverture étant définie par deux arcs de pavillon s'étendant sensiblement selon un axe longitudinal du véhicule automobile, une traverse avant et une traverse arrière s'étendant sensiblement transversalement à l'axe longitudinal du véhicule automobile, la structure étant munie d'au moins une paire de supports latéraux espacés l'un de l'autre et reliés entre eux par un arceau central, les supports latéraux s'étendant respectivement sensiblement parallèlement aux arcs de pavillon depuis la traverse avant tandis que l'arceau central s'étend sensiblement parallèlement à la traverse arrière, chaque support latéral de la structure comprenant une extension s'étendant depuis l'arceau central et prolongeant le support latéral jusqu'à la traverse arrière. For this purpose, it is proposed, first, a motor vehicle body comprising a structure adapted to support a panoramic roof, this structure being reported in an opening of the vehicle body, the opening being defined by two roof arches extending substantially along a longitudinal axis of the motor vehicle, a front cross member and a rear cross member extending substantially transversely to the longitudinal axis of the motor vehicle, the structure being provided with at least one pair of lateral supports spaced from each other and interconnected by a central arch, the lateral supports respectively extending substantially parallel to the roof arches from the front cross member while the central arch extends substantially parallel to the rear cross member, each lateral support of the structure comprising an extension extending from the central arch and extending the lateral support until 'to the rear crossmember.
[0007] Avantageusement, une telle structure permet de rigidifier une caisse de véhicule automobile et de limiter les vibrations engendrées par des sollicitations routières, ainsi que les résonnances acoustiques induites par ces vibrations. Advantageously, such a structure makes it possible to stiffen a motor vehicle body and to limit the vibrations generated. by road solicitations, as well as the acoustic resonance induced by these vibrations.
[0008] Par ailleurs, avantageusement, la structure confère à la caisse sur laquelle elle est montée une raideur équivalente à la raideur d'une caisse de véhicule non équipé d'un toit panoramique. Furthermore, advantageously, the structure gives the box on which it is mounted a stiffness equivalent to the stiffness of a vehicle body not equipped with a panoramic roof.
[0009] L'invention se rapporte, selon un deuxième aspect, à une caisse de véhicule comprenant une structure telle que présentée ci- dessus, les extensions constituant une extrémité des supports latéraux reposant sur la traverse arrière, de sorte à y être solidarisées, les supports reposant à leur extrémité opposée sur la traverse avant, de sorte à y être solidarisées. La fixation des supports latéraux sur la caisse est ainsi effectuée en des zones présentant une rigidité élevée. The invention relates, in a second aspect, to a vehicle body comprising a structure as shown above, the extensions constituting one end of the lateral supports resting on the rear cross member, so as to be secured to it, the supports resting at their opposite end on the front cross member, so as to be secured. The fixing of the lateral supports on the body is thus carried out in zones having a high rigidity.
[0010] Les extensions sont d'une pièce avec les supports et constitués par les extrémités desdits supports s'étendant au-delà de l'arceau central jusqu'à la traverse arrière. The extensions are in one piece with the supports and constituted by the ends of said supports extending beyond the central arch to the rear crossmember.
[001 1 ] Diverses caractéristiques supplémentaires peuvent être prévues, seules ou en combinaison [001 1] Various additional features may be provided, alone or in combination
- les supports latéraux comprennent un rebord reposant sur les arcs de pavillon ; - The lateral supports comprise a rim resting on the roof arches;
- l'arceau central repose à la fois sur les arcs de pavillon et les supports latéraux ; - the central arch rests on both the roof arches and the lateral supports;
- un toit panoramique est logé dans une première enclave, délimitée par la traverse avant, l'arceau central et les supports latéraux ; - A panoramic roof is housed in a first enclave, delimited by the front cross member, the central arch and the lateral supports;
- le toit panoramique est fixe ou comporte un ouvrant ; - The panoramic roof is fixed or has an opening;
la traverse avant est une traverse supérieure de pare-brise ; the front cross member is an upper windshield rail;
la traverse arrière est une traverse supérieure de lunette arrière ; the rear crossmember is an upper transom of rear window;
- la caisse comprend une tôle entre l'arceau central et la traverse arrière. - The body comprises a sheet between the central arch and the rear cross.
[0012] Il est proposé, en troisième lieu , un véhicule automobile comprenant la caisse telle que présentée ci-dessus. It is proposed, thirdly, a motor vehicle comprising the body as presented above.
[0013] D'autres caractéristiques et avantages de l'invention apparaîtront plus clairement et de manière concrète à la lecture de la description ci-après de modes de réalisation, laquelle est faite en référence aux dessins annexés dans lesquels : - la figure 1 est une vue en perspective d'un véhicule automobile (en traits pointillés) comprenant une caisse (en traits gras continus) et un toit panoramique ; Other features and advantages of the invention will appear more clearly and concretely on reading the following description of embodiments, which is made with reference to the accompanying drawings in which: - Figure 1 is a perspective view of a motor vehicle (in dashed lines) comprising a body (in continuous bold lines) and a panoramic roof;
- la figure 2 est une vue en perspective éclatée de la caisse de la figure 1 ; - Figure 2 is an exploded perspective view of the body of Figure 1;
- la figure 3 est une vue en perspective éclatée d'une partie de la caisse représentée en figure 2 ; - Figure 3 is an exploded perspective view of a portion of the box shown in Figure 2;
- la figure 4 est une vue de dessus d'un toit panoramique, selon un mode de réalisation. - Figure 4 is a top view of a panoramic roof, according to one embodiment.
[0014] Sur la figure 1 est représenté un véhicule 1 automobile (en traits pointillés) comprenant une caisse 2 (en traits gras continus) incluant un pavillon 3, un toit 4 panoramique étant aménagé dans ce pavillon 3. In Figure 1 is shown a vehicle 1 automobile (in dashed lines) comprising a box 2 (in continuous bold lines) including a flag 3, a panoramic roof 4 being arranged in this flag 3.
[0015] On définit par rapport au véhicule 1 un repère orthogonal XYZ comprenant trois axes perpendiculaires deux à deux, à savoir : One defines with respect to the vehicle 1 an orthogonal reference XYZ comprising three axes perpendicular two by two, namely:
- un axe X, définissant une direction longitudinale, horizontale, confondue avec la direction générale de déplacement du véhicule, an axis X, defining a longitudinal, horizontal direction coinciding with the general direction of movement of the vehicle,
- un axe Y, définissant une direction transversale, horizontale, qui avec l'axe X définit un plan XY horizontal, a Y axis, defining a transverse, horizontal direction which, with the X axis, defines a horizontal XY plane;
- un axe Z, définissant une direction verticale, perpendiculaire au plan XY horizontal. an axis Z, defining a vertical direction perpendicular to the horizontal XY plane.
[0016] Dans la suite de la description et en référence au repère défini ci-dessus, les termes « longitudinal » ou « longitudinalement » font référence à une direction confondue avec l'axe X, les termes « transversal » ou « transversalement » font référence à une direction confondue avec l'axe Y, et les termes « vertical » ou « verticalement » font référence à une direction confondue avec l'axe Z. In the following description and with reference to the reference defined above, the terms "longitudinal" or "longitudinally" refer to a direction coincident with the X axis, the terms "transverse" or "transversely" are reference to a direction coincident with the Y axis, and the terms "vertical" or "vertically" refer to a direction coincident with the Z axis.
[0017] Tel qu'illustré, la caisse 2 comprend un bloc avant et un bloc arrière, le bloc avant étant associé à un essieu avant, tandis que le bloc arrière est associé à un essieu arrière, les deux essieux portant les roues 5 du véhicule 1 automobile. Le bloc avant et le bloc arrière sont reliés en partie inférieure de la caisse 2 par un soubassement 6, et latéralement par deux côtés 7 habitacle. Un habitacle 9 est délimité par le bloc avant, le bloc arrière, le soubassement 6, les côtés 7 habitacle et le toit 4 panoramique. Les côtés 7 habitacle comprennent chacun deux ouvertures 10, séparées par un pied 1 1 milieu, et un arc 12 de pavillon. La caisse 2 comprend une traverse 13 avant et une traverse 14 arrière transversales. As illustrated, the body 2 comprises a front block and a rear block, the front block being associated with a front axle, while the rear block is associated with a rear axle, the two axles carrying the wheels 5 of the 1 car vehicle. The front block and the rear block are connected in the lower part of the body 2 by a base 6, and laterally by two sides 7 cockpit. A passenger compartment 9 is delimited by the front block, the rear block, the base 6, the sides 7 cabin and roof 4 panoramic. The interior sides 7 each comprise two openings 10, separated by a foot 1 1 medium, and an arc 12 of flag. The body 2 comprises a front transverse 13 and a transverse cross 14 transverse.
[0018] Dans le mode de réalisation représenté, la traverse 13 avant est une traverse supérieure de pare-brise, et la traverse 14 arrière est une traverse supérieure de lunette arrière. In the embodiment shown, the cross 13 is a front cross member of the windshield, and the cross 14 is a rear cross member of the rear window.
[0019] Les arcs 12 de pavillon, les traverses 13, 14 avant et arrière définissent ensemble une ouverture 15 recevant notamment le toit 4 panoramique. The roof arches 12, the crosspieces 13, 14 front and rear together define an opening 15 receiving in particular the panoramic roof 4.
[0020] Dans le mode de réalisation représenté, le toit 4 panoramique est fixe. Dans d'autres modes de réalisation, non représentés, le toit panoramique comporte un ouvrant. In the embodiment shown, the panoramic roof 4 is fixed. In other embodiments, not shown, the panoramic roof comprises an opening.
[0021 ] Le toit 4 panoramique comporte une structure 8 comprenant un arceau 16 central et deux supports 17 latéraux. La structure 8 est fixée sur les arcs 12 de pavillon et les traverse 13, 14 avant et arrière, par exemple par soudage. The panoramic roof 4 comprises a structure 8 comprising a central hoop 16 and two lateral supports 17. The structure 8 is fixed on the roof arches 12 and crosses 13, 14 front and rear, for example by welding.
[0022] Le toit 4 panoramique comprend un élément 18 de vitrage, entouré d'un joint 19 et d'un cadre 20. L'élément 18 de vitrage est en verre minéral ou organique. The panoramic roof 4 comprises a glazing element 18, surrounded by a seal 19 and a frame 20. The glazing element 18 is made of mineral or organic glass.
[0023] Le joint 19 permet d'assurer l'étanchéité du toit 4 panoramique, évitant ainsi toute fuite d'eau à l'intérieur de l'habitacle 9. The seal 19 makes it possible to seal the roof 4 panoramic, thus avoiding any water leak inside the passenger compartment 9.
[0024] Tel qu'illustré sur la figure 3, chaque élément constituant la structure 8 est réalisé à partir d'une tôle métallique emboutie. As illustrated in Figure 3, each element constituting the structure 8 is made from a stamped metal sheet.
[0025] Les supports 17 latéraux comprennent un rebord 21 , s'étendant avantageusement sur toute la longueur des supports 17 latéraux, et sont ainsi aptes à venir en appui sur les arcs 12 de pavillon. The lateral supports 17 comprise a flange 21, extending advantageously over the entire length of the lateral supports 17, and are thus able to bear on the arches 12 flag.
[0026] Chaque support 17 latéral comprend deux extrémités 22, 23, aptes à venir en appui respectivement sur la traverse 13 avant et la traverse 14 arrière. Each lateral support 17 comprises two ends 22, 23, adapted to bear respectively on the cross 13 before and the cross 14 back.
[0027] Une fois que les supports 17 latéraux sont mis en place sur la caisse 2, l'arceau 16 central est installé. L'arceau 16 central comprend des bords 24, aptes à venir en appui sur les supports 17 latéraux pour y être solidarisés. Once the lateral supports 17 are put in place on the body 2, the central hoop 16 is installed. The central arch 16 includes edges 24, able to bear on the lateral supports 17 to be secured.
[0028] L'arceau 16 central est disposé entre les traverses 13, 14 avant et arrière, de sorte à former une première enclave 25 et une seconde enclave 26. Dans le mode de réalisation représenté, la première enclave 25 est délimitée par la traverse 13 avant, formant la traverse supérieure de baie de pare-brise, l'arceau 16 central et les supports 17 latéraux s'étendant depuis la traverse 13 jusqu'à l'arceau 16 central. The central arch 16 is disposed between the crosspieces 13, 14 front and rear, so as to form a first enclave 25 and a second enclave 26. In the embodiment shown, the first enclave 25 is delimited by the cross member 13 before, forming the windshield upper rail, the central arch 16 and the lateral supports 17 extending from the crossbar 13 to the central arch 16.
[0029] Dans le mode de réalisation représenté, la première enclave 25 loge le cadre 20 du toit 4 panoramique. Avantageusement, l'arceau 16 central ne s'étend pas sensiblement entre les pieds 1 1 centraux, e mais est placé vers l'arrière de la caisse, par rapport à ces pieds 1 1 centraux. Ainsi qu'il a été dit précédemment, le toit 4 panoramique peut être fixe ou comporter un ouvrant. In the embodiment shown, the first enclave 25 houses the frame 20 of the panoramic roof 4. Advantageously, the central arch 16 does not extend substantially between the central feet 1, e but is placed towards the rear of the body, relative to these central feet 1 1. As has been said previously, the panoramic roof 4 can be fixed or include an opening.
[0030] La seconde enclave 26 est délimitée par l'arceau 16 central, la traverse 14 arrière et des extensions 27 des supports 17 latéraux. Ces extensions 27 des supports 17 latéraux prolongent lesdits supports au-delà de l'arceau 6 central et viennent en appui et sont fixées, par exemple par soudage, en partie arrière de la caisse. Une extension 27 peut être d'une pièce avec un support latéral ou être rapporté à l'extrémité d'un tel support entre l'extrémité du support latéral fixée sur l'arceau central et la traverse arrière. The second enclave 26 is defined by the central arch 16, the rear cross member 14 and extensions 27 of the lateral supports 17. These extensions 27 of the lateral supports 17 extend said supports beyond the central arch 6 and come to rest and are fixed, for example by welding, in the rear part of the body. An extension 27 may be in one piece with a lateral support or be attached to the end of such a support between the end of the lateral support fixed on the central arch and the rear cross member.
[0031 ] Dans un mode de réalisation, une tôle est placée sur le pavillon de caisse, recouvrant la deuxième enclave 26. In one embodiment, a sheet is placed on the body flag, covering the second enclave 26.
[0032] Lors de l'utilisation du véhicule, la caisse 2 se déforme en fonction de sa raideur en torsion, la raideur en torsion s'exprimant en n.m/deg et définissant le couple nécessaire pour faire vriller la caisse 2 d'un degré. Une raideur de caisse trop faible entraine un déplacement des points d'attache des suspensions, modifie la cinématique des suspensions, ces déplacements étant néfastes à la bonne tenue de route d'un véhicule automobile, et pouvant entraîner d'autres effets indésirables, comme des vibrations et des résonances acoustiques. During the use of the vehicle, the body 2 is deformed according to its torsional stiffness, the torsional stiffness in nm / deg and defining the torque needed to twist the body 2 of a degree . A stiffness of body too low causes a displacement of the points of attachment of the suspensions, modifies the kinematics of the suspensions, these displacements being detrimental to the good behavior of road of a motor vehicle, and being able to cause other undesirable effects, like vibrations and acoustic resonances.
[0033] Avantageusement, la raideur en torsion du véhicule automobile muni d'un toit panoramique et comportant une structure selon l'invention est proche de celle d'un véhicule automobile semblable, mais avec un toit en tôle. En effet, le réglage des trains d'un véhicule automobile est adapté à la raideur en torsion de la caisse, et un seul réglage est ainsi mis en œuvre pour les véhicules produits, pourvus ou non d'un toit panoramique. Advantageously, the torsional stiffness of the motor vehicle provided with a panoramic roof and comprising a structure according to the invention is similar to that of a similar motor vehicle, but with a sheet metal roof. Indeed, the adjustment of the trains of a motor vehicle is adapted to the torsional stiffness of the body, and a single adjustment is thus implemented for vehicles produced, with or without a panoramic roof.
[0034] Avantageusement, les supports 17 latéraux créent une structure rigidifiant les arcs 12 de pavillon sur la longueur de la première enclave 25 mais aussi sur la longueur de la seconde enclave 26, grâce aux extensions 27. Advantageously, the lateral supports 17 create a structure that stiffens the roof arches 12 over the length of the roof. first enclave 25 but also along the length of the second enclave 26, thanks to the extensions 27.
[0035] La structure qui vient d'être décrite permet d'augmenter la fréquence propre de torsion dynamique de la caisse, en apportant de la raideur au pavillon de caisse à toit panoramique. The structure that has just been described increases the natural frequency of dynamic torsion of the body, bringing stiffness to the pavilion panoramic roof box.
[0036] En effet, chaque mode propre d'une caisse présente une déformée modale et une fréquence propre. Le comportement dynamique du véhicule, et en particulier le confort vibratoire, est lié à la torsion de caisse. La structure qui vient d'être décrite augmente la fréquence propre en torsion de la caisse, de l'ordre de quelques Hz, par rapport à un axe longitudinal, sans apport excessif de masse. Le confort acoustique des passagers du véhicule est amélioré. Indeed, each clean mode of a body has a modal deformed and a natural frequency. The dynamic behavior of the vehicle, and in particular the vibratory comfort, is related to the body torsion. The structure just described increases the torsional frequency of the body, of the order of a few Hz, with respect to a longitudinal axis, without excessive mass. The acoustic comfort of the passengers of the vehicle is improved.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP16825814.3A EP3408161A1 (en) | 2016-01-29 | 2016-12-09 | Vehicle body having a reinforced roof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1650726 | 2016-01-29 | ||
| FR1650726A FR3047221B1 (en) | 2016-01-29 | 2016-01-29 | VEHICLE BOX WITH REINFORCED PAVILION |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017129867A1 true WO2017129867A1 (en) | 2017-08-03 |
Family
ID=55953220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2016/053308 Ceased WO2017129867A1 (en) | 2016-01-29 | 2016-12-09 | Vehicle body having a reinforced roof |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3408161A1 (en) |
| FR (1) | FR3047221B1 (en) |
| MA (1) | MA43904A (en) |
| WO (1) | WO2017129867A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1149757A2 (en) * | 2000-04-25 | 2001-10-31 | Nissan Motor Company, Limited | Car body assembling method and body structure of a vehicle |
| JP2005153650A (en) * | 2003-11-25 | 2005-06-16 | Mitsubishi Motors Corp | Automobile roof structure |
| DE102005032564A1 (en) * | 2005-07-11 | 2007-01-18 | Webasto Ag | Framework arrangement for adjustable storage of openable vehicle roof part e.g. sunroof, has each framework side arm comprising of longitudinal metallic and plastic sections defining guide rail and discharge channel, respectively |
| US9180917B1 (en) * | 2014-09-02 | 2015-11-10 | Ford Global Technologies, Llc | Supplemental support flange for a vehicle frame pillar and expanded daylight opening of panoramic sunroof |
-
2016
- 2016-01-29 FR FR1650726A patent/FR3047221B1/en not_active Expired - Fee Related
- 2016-12-09 WO PCT/FR2016/053308 patent/WO2017129867A1/en not_active Ceased
- 2016-12-09 MA MA043904A patent/MA43904A/en unknown
- 2016-12-09 EP EP16825814.3A patent/EP3408161A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1149757A2 (en) * | 2000-04-25 | 2001-10-31 | Nissan Motor Company, Limited | Car body assembling method and body structure of a vehicle |
| JP2005153650A (en) * | 2003-11-25 | 2005-06-16 | Mitsubishi Motors Corp | Automobile roof structure |
| DE102005032564A1 (en) * | 2005-07-11 | 2007-01-18 | Webasto Ag | Framework arrangement for adjustable storage of openable vehicle roof part e.g. sunroof, has each framework side arm comprising of longitudinal metallic and plastic sections defining guide rail and discharge channel, respectively |
| US9180917B1 (en) * | 2014-09-02 | 2015-11-10 | Ford Global Technologies, Llc | Supplemental support flange for a vehicle frame pillar and expanded daylight opening of panoramic sunroof |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3047221B1 (en) | 2018-01-19 |
| FR3047221A1 (en) | 2017-08-04 |
| EP3408161A1 (en) | 2018-12-05 |
| MA43904A (en) | 2018-12-05 |
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