WO2019122310A1 - Anti-recoil device for a motor vehicle component in the event of a front impact - Google Patents
Anti-recoil device for a motor vehicle component in the event of a front impact Download PDFInfo
- Publication number
- WO2019122310A1 WO2019122310A1 PCT/EP2018/086530 EP2018086530W WO2019122310A1 WO 2019122310 A1 WO2019122310 A1 WO 2019122310A1 EP 2018086530 W EP2018086530 W EP 2018086530W WO 2019122310 A1 WO2019122310 A1 WO 2019122310A1
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- WIPO (PCT)
- Prior art keywords
- motor vehicle
- stop
- recoil device
- engine
- motor
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
- B60K5/1208—Resilient supports
- B60K5/1216—Resilient supports characterised by the location of the supports relative to the motor or to each other
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/01—Reducing damages in case of crash, e.g. by improving battery protection
Definitions
- the invention relates to an anti-recoil device of a motor vehicle element during a front impact.
- the invention also relates to a motor vehicle body comprising such an anti-recoil device.
- the invention also relates to a motor vehicle engine comprising such an anti-recoil device.
- the invention relates to a motor vehicle comprising such a box, such a motor or such an anti-recoil device.
- a motor vehicle is generally equipped with an engine, for example an internal combustion engine, arranged in an engine compartment at the front of the motor vehicle.
- the motor vehicle may be subjected during its use to shock, particularly a front shock also called frontal impact.
- a front shock also called frontal impact.
- the front of the motor vehicle is generally equipped with elements that deform and / or break and / or recede.
- elements located at the front of the motor vehicle, in particular the engine can move back in the event of a front impact.
- the engine compartment is separated from the passenger compartment occupied by one or more occupants by a simple apron.
- This apron is usually a steel sheet. Also, in the event of a frontal impact, if the engine and / or front elements retreat beyond a threshold value, the engine and / or the front elements deform or even pass through the deck.
- the object of the invention is to provide an anti-recoil device of an element arranged in the engine compartment before overcoming the disadvantages above.
- the invention makes it possible to provide an anti-recoil device of an element that is simple, reliable and easy to implement.
- the invention relates to an anti-recoil device of a motor vehicle engine during a front impact, the anti-recoil device comprising a first beam-type stop, intended to extend longitudinally or substantially longitudinally, in particular extending between the engine and a chassis element of the motor vehicle, the first stop having at least one pointed end, in particular a beveled end, so that the at least one end is fixed in the element chassis or in the engine in case of impact.
- the anti-recoil device may comprise a first means for fixing the first stop on the chassis element or on the motor vehicle element, in particular a first bridge-shaped fastening means.
- the anti-recoil device may comprise a second stop, in particular a reinforcement, and a second means for fixing the second stop on the motor vehicle element or on the chassis element.
- the second stop may be a plate, in particular a metal plate.
- the invention also relates to a motor vehicle body, in particular a body comprising a front cradle type frame element intended to receive a first means for fixing a first abutment or a second means for fixing a second abutment, the body comprising an anti-recoil device as defined above.
- the invention also relates to a motor vehicle engine, in particular an internal combustion engine comprising an oil sump, intended to receive a first means for fixing a first stop or a second means for fixing a second stop, the engine comprising an anti-recoil device as defined above.
- the invention relates to a motor vehicle, including a motor vehicle comprising a motor in the front, the motor vehicle comprising a box as defined above or a motor as defined above or an anti-recoil device as defined above.
- Figure 1 schematically shows a top view of a motor vehicle according to one embodiment.
- FIG. 2 represents a perspective view of a box comprising an anti-recoil device of an element according to one embodiment, without being subjected to a front impact.
- FIG 3 shows a perspective view of the box comprising the anti-recoil device of an element according to the embodiment, following a front impact.
- Figure 4 shows a perspective view of a detail of the anti-recoil device of an element according to the embodiment.
- the direction in which a motor vehicle usually moves in a straight line is defined as the direction longitudinal.
- the direction perpendicular to the longitudinal direction, located in a plane parallel to the ground, is called transverse direction.
- the third direction, perpendicular to the other two, is named vertical direction.
- the "forward" direction corresponds to the direction in which the motor vehicle usually moves in the longitudinal direction, and is opposite to the "back" direction.
- a motor vehicle 1 comprises a motor 10.
- the engine 10 may for example be an internal combustion engine with an oil sump 15.
- the engine 10, more precisely its oil sump 15, receives a second attachment means 121 of a second stop 120.
- a box 3 of the motor vehicle 1 comprises a frame member 4, for example of the front cradle type.
- An anti-recoil device 100 of an element such as, for example, the motor 10, comprises the first abutment 110.
- This first abutment 110 is preferably a beam, for example an angle beam, IPN, or tubular with a circular section, square, rectangular or oval.
- This first stop 110 extends longitudinally or substantially longitudinally, in particular between the motor 10 and the front cradle 4 of the motor vehicle 1.
- the anti-recoil device 100 preferably comprises the first attachment means 130 of the first stop 110 on the front cradle 4.
- the anti-recoil device 100 preferably comprises the second stop 120, for example a stop 120 of the reinforcement type.
- the second stop 120 is preferably a plate, for example a metal plate.
- the anti-recoil device 100 then preferably comprises the second attachment means 121 of the second stop 120 on the motor vehicle engine 1, for example on its oil sump 15. This second attachment means 121 can comprise one or several screws passing through for example the second stop 120.
- the first attachment means 130 is fixed on the front cradle 4, for example at a front edge 4 'of the front cradle 4.
- the first fixing means 130 has, for example, a shape trigger guard.
- the first fixing means 130 is for example made of steel and is welded to the front cradle 4, preferably of steel.
- the first fastening means 130 is advantageously traversed by the first stop 110 in order to be able to guide it easily.
- the first attachment means 130 is fixed to the first stop 110, for example by welding.
- the rear end 111 of the first stop 110 has a shape adapted to facilitate its insertion into the front cradle 4. Thus, this end 111 is preferably pointed, for example beveled.
- a clearance J between the second stop 120 and the first stop 110 is provided.
- This clearance J is dimensioned so as to prevent the transmission of vibrations and to allow the movements or movements of the motor 10 to the front cradle 4, during the use of the motor vehicle 1.
- the first and second stops come closer.
- the first stop 110 and the second stop 120 come into contact.
- the clearance J is fully compensated by the recoil of the motor 10.
- the first attachment means 130 deforms, while maintaining the first stop 110, so that the rear end 111 of the first stop 1 10 comes into contact with, or even sinks into, the cradle before 4, for example at the level of an upper shell of the front cradle.
- This kinematics is favored by guiding in the longitudinal direction of the first stop 110 by the first attachment means 130.
- the first stop 110 at least its rear end 111, then necessarily comes into the cradle before 4 and transmits the forces of the engine 10 to the cradle before 4.
- the front cradle 4 undergoes a deformation following the forces transmitted by the first stop 110, efforts having prevented, at least in part, the recoil of the motor 10.
- the forces related to the recoil of the engine 10 during a frontal impact are taken up by the first stop 110 and, possibly, by the deformation of the front cradle 4.
- the recoil of the engine 10 is then limited and the deck separating the engine compartment of the passenger compartment is not or little impacted. This results in an absence of intrusion into the passenger compartment thus eliminating the risk of injury to the occupants of the motor vehicle.
- the engine for example via its oil sump or a gearbox, which receives the first attachment means of the first stop.
- the body for example the front cradle, which receives the second attachment means of the second stop (variant not shown).
- the element 10 may be another element than an internal combustion engine, for example an electric motor.
- the element 10 may for example be a bulky and / or heavy propulsion battery disposed at the front of the vehicle.
- the solution thus achieves the object sought to limit the retreat of a motor vehicle engine during a front impact and has the following advantages:
- first stop 110, the second stop 120 and the first attachment means 130 being for example steel parts, for example obtained by conventional manufacturing processes,
- the invention is particularly well suited to a motor vehicle having a motor compartment at the front. It provides better security for the occupant (s) of the vehicle during a frontal impact. It relates to an anti-recoil device of a motor vehicle element during a front impact. It also relates to a box comprising such an anti-recoil device. It still relates to an engine comprising such an anti-recoil device. Finally, it relates to a motor vehicle comprising such a box or such an engine or such an anti-recoil device.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to an anti-recoil device (100) for a component (10) of a motor vehicle (1) during a front impact, in particular a component (10) such as an engine, characterized in that the device comprises a first abutment (110), in particular a beam, intended to extend longitudinally or substantially longitudinally, in particular extending between the component (10) and a chassis component (4) of the motor vehicle (1).
Description
Dispositif anti-recul d’un élément de véhicule automobile en cas de choc avant Anti-recoil device of a motor vehicle element in the event of a front impact
L’invention concerne un dispositif anti-recul d’un élément de véhicule automobile lors d’un choc avant. L’invention porte aussi sur une caisse de véhicule automobile comprenant un tel dispositif anti-recul. L’invention porte encore sur un moteur de véhicule automobile comprenant un tel dispositif anti-recul. L’invention porte enfin sur un véhicule automobile comprenant une telle caisse, un tel moteur ou un tel dispositif anti-recul. The invention relates to an anti-recoil device of a motor vehicle element during a front impact. The invention also relates to a motor vehicle body comprising such an anti-recoil device. The invention also relates to a motor vehicle engine comprising such an anti-recoil device. Finally, the invention relates to a motor vehicle comprising such a box, such a motor or such an anti-recoil device.
Un véhicule automobile est généralement doté d’un moteur, par exemple un moteur à combustion interne, disposé dans un compartiment moteur à l’avant du véhicule automobile. Or, le véhicule automobile peut être soumis au cours de son utilisation à un choc, en particulier un choc avant aussi appelé choc frontal. Ainsi, afin d’absorber un maximum d’énergie, l’avant du véhicule automobile est généralement équipé d’éléments qui se déforment et/ou se cassent et/ou reculent. Autrement dit des éléments situés à l’avant du véhicule automobile, en particulier le moteur, peuvent reculer en cas de choc avant. A motor vehicle is generally equipped with an engine, for example an internal combustion engine, arranged in an engine compartment at the front of the motor vehicle. However, the motor vehicle may be subjected during its use to shock, particularly a front shock also called frontal impact. Thus, in order to absorb a maximum of energy, the front of the motor vehicle is generally equipped with elements that deform and / or break and / or recede. In other words, elements located at the front of the motor vehicle, in particular the engine, can move back in the event of a front impact.
Seulement, le compartiment moteur est séparé de l’habitacle occupé par un ou plusieurs occupants par un simple tablier. Ce tablier est généralement une tôle en acier. Aussi, en cas de choc frontal, si le moteur et/ou des éléments avant reculent au-delà d’une valeur seuil, le moteur et/ou les éléments avant déforment voire traversent le tablier. Only, the engine compartment is separated from the passenger compartment occupied by one or more occupants by a simple apron. This apron is usually a steel sheet. Also, in the event of a frontal impact, if the engine and / or front elements retreat beyond a threshold value, the engine and / or the front elements deform or even pass through the deck.
Une telle situation n’est pas acceptable car elle peut engendrer des blessures superficielles, voire graves, aux occupants du véhicule automobile. Such a situation is not acceptable because it can cause superficial or even serious injuries to the occupants of the motor vehicle.
Le but de l’invention est de fournir un dispositif anti-recul d’un élément disposé dans le compartiment moteur avant remédiant aux inconvénients
ci-dessus. En particulier, l’invention permet de réaliser un dispositif anti- recul d’un élément qui soit simple, fiable et aisé à implanter. The object of the invention is to provide an anti-recoil device of an element arranged in the engine compartment before overcoming the disadvantages above. In particular, the invention makes it possible to provide an anti-recoil device of an element that is simple, reliable and easy to implement.
Pour atteindre cet objectif, l’invention porte sur un dispositif anti-recul d’un moteur de véhicule automobile lors d’un choc avant, le dispositif anti-recul comprenant une première butée de type poutre, destinée à s’étendre longitudinalement ou sensiblement longitudinalement, notamment s’étendant entre le moteur et un élément de châssis du véhicule automobile, la première butée ayant au moins une extrémité pointue, notamment une extrémité biseautée, de sorte à ce que l’au moins une extrémité se plante dans l’élément de châssis ou dans le moteur en cas de choc. To achieve this objective, the invention relates to an anti-recoil device of a motor vehicle engine during a front impact, the anti-recoil device comprising a first beam-type stop, intended to extend longitudinally or substantially longitudinally, in particular extending between the engine and a chassis element of the motor vehicle, the first stop having at least one pointed end, in particular a beveled end, so that the at least one end is fixed in the element chassis or in the engine in case of impact.
Le dispositif anti-recul peut comprendre un premier moyen de fixation de la première butée sur l’élément de châssis ou sur l’élément de véhicule automobile, notamment un premier moyen de fixation en forme de pontet. The anti-recoil device may comprise a first means for fixing the first stop on the chassis element or on the motor vehicle element, in particular a first bridge-shaped fastening means.
Le dispositif anti-recul peut comprendre une deuxième butée, notamment un renfort, et un deuxième moyen de fixation de la deuxième butée sur l’élément de véhicule automobile ou sur l’élément de châssis. The anti-recoil device may comprise a second stop, in particular a reinforcement, and a second means for fixing the second stop on the motor vehicle element or on the chassis element.
La deuxième butée peut être une plaque, notamment une plaque métallique. The second stop may be a plate, in particular a metal plate.
L’invention porte encore sur une caisse de véhicule automobile, notamment une caisse comprenant un élément de châssis de type berceau avant, destinée à recevoir un premier moyen de fixation d’une première butée ou un deuxième moyen de fixation d’une deuxième butée, la caisse comprenant un dispositif anti-recul tel que défini précédemment.
L’invention porte encore sur un moteur de véhicule automobile, notamment un moteur à combustion interne comprenant un carter d’huile, destiné à recevoir un premier moyen de fixation d’une première butée ou un deuxième moyen de fixation d’une deuxième butée, le moteur comprenant un dispositif anti-recul tel que défini précédemment. The invention also relates to a motor vehicle body, in particular a body comprising a front cradle type frame element intended to receive a first means for fixing a first abutment or a second means for fixing a second abutment, the body comprising an anti-recoil device as defined above. The invention also relates to a motor vehicle engine, in particular an internal combustion engine comprising an oil sump, intended to receive a first means for fixing a first stop or a second means for fixing a second stop, the engine comprising an anti-recoil device as defined above.
L’invention porte enfin sur un véhicule automobile, notamment un véhicule automobile comprenant un moteur à l’avant, le véhicule automobile comprenant une caisse telle que définie précédemment ou un moteur tel que défini précédemment ou un dispositif anti-recul tel que défini précédemment. Finally, the invention relates to a motor vehicle, including a motor vehicle comprising a motor in the front, the motor vehicle comprising a box as defined above or a motor as defined above or an anti-recoil device as defined above.
Les figures annexées représentent, à titre d’exemple, un mode de réalisation d’un dispositif anti-recul d’un élément de véhicule automobile selon l’invention. The appended figures represent, by way of example, an embodiment of an anti-recoil device of a motor vehicle element according to the invention.
La figure 1 représente schématiquement une vue de dessus d’un véhicule automobile selon un mode de réalisation. Figure 1 schematically shows a top view of a motor vehicle according to one embodiment.
La figure 2 représente une vue en perspective d’une caisse comprenant un dispositif anti-recul d’un élément selon un mode de réalisation, sans avoir subi de choc avant. FIG. 2 represents a perspective view of a box comprising an anti-recoil device of an element according to one embodiment, without being subjected to a front impact.
La figure 3 représente une vue en perspective de la caisse comprenant le dispositif anti-recul d’un élément selon le mode de réalisation, suite à un choc avant. 3 shows a perspective view of the box comprising the anti-recoil device of an element according to the embodiment, following a front impact.
La figure 4 représente une vue en perspective d’un détail du dispositif anti-recul d’un élément selon le mode de réalisation. Figure 4 shows a perspective view of a detail of the anti-recoil device of an element according to the embodiment.
La direction selon laquelle un véhicule automobile se déplace habituellement en ligne droite est définie comme étant la direction
longitudinale. Par convention, la direction perpendiculaire à la direction longitudinale, située dans un plan parallèle au sol, est nommée direction transversale. La troisième direction, perpendiculaire aux deux autres, est nommée direction verticale. Le sens « avant » correspond au sens dans lequel le véhicule automobile se déplace habituellement dans la direction longitudinale, et est opposé au sens « arrière ». The direction in which a motor vehicle usually moves in a straight line is defined as the direction longitudinal. By convention, the direction perpendicular to the longitudinal direction, located in a plane parallel to the ground, is called transverse direction. The third direction, perpendicular to the other two, is named vertical direction. The "forward" direction corresponds to the direction in which the motor vehicle usually moves in the longitudinal direction, and is opposite to the "back" direction.
Par « recul », on entend un déplacement vers l’arrière. By "retreat" is meant a backward movement.
Comme illustré schématiquement sur la figure 1 , un véhicule automobile 1 comprend un moteur 10. Le moteur 10 peut par exemple être un moteur à combustion interne doté d’un carter d’huile 15. Le moteur 10, plus précisément son carter d’huile 15, reçoit un deuxième moyen de fixation 121 d’une deuxième butée 120. As illustrated schematically in Figure 1, a motor vehicle 1 comprises a motor 10. The engine 10 may for example be an internal combustion engine with an oil sump 15. The engine 10, more precisely its oil sump 15, receives a second attachment means 121 of a second stop 120.
Comme illustré sur la figure 2, une caisse 3 du véhicule automobile 1 comprend un élément de châssis 4, par exemple de type berceau avant. La caisse 3, plus précisément le berceau avant 4, reçoit un premier moyen de fixation 130 d’une première butée 110. As illustrated in Figure 2, a box 3 of the motor vehicle 1 comprises a frame member 4, for example of the front cradle type. The body 3, more precisely the front cradle 4, receives a first attachment means 130 of a first stop 110.
Un dispositif anti-recul 100 d’un élément comme par exemple le moteur 10, comprend la première butée 110. Cette première butée 110 est de préférence une poutre, par exemple une poutre de type cornière, IPN, ou encore tubulaire à section circulaire, carrée, rectangulaire ou ovale. Cette première butée 110 s’étend longitudinalement ou sensiblement longitudinalement, en particulier entre le moteur 10 et le berceau avant 4 du véhicule automobile 1. An anti-recoil device 100 of an element such as, for example, the motor 10, comprises the first abutment 110. This first abutment 110 is preferably a beam, for example an angle beam, IPN, or tubular with a circular section, square, rectangular or oval. This first stop 110 extends longitudinally or substantially longitudinally, in particular between the motor 10 and the front cradle 4 of the motor vehicle 1.
Le dispositif anti-recul 100 comprend de préférence le premier moyen de fixation 130 de la première butée 110 sur le berceau avant 4.
Le dispositif anti-recul 100 comprend de préférence la deuxième butée 120 par exemple une butée 120 de type renfort. La deuxième butée 120 est de préférence une plaque, par exemple une plaque métallique. Le dispositif anti-recul 100 comprend alors de préférence le deuxième moyen de fixation 121 de la deuxième butée 120 sur le moteur 10 de véhicule automobile 1 , par exemple sur son carter d’huile 15. Ce deuxième moyen de fixation 121 peut comprendre une ou plusieurs vis traversant par exemple la deuxième butée 120. The anti-recoil device 100 preferably comprises the first attachment means 130 of the first stop 110 on the front cradle 4. The anti-recoil device 100 preferably comprises the second stop 120, for example a stop 120 of the reinforcement type. The second stop 120 is preferably a plate, for example a metal plate. The anti-recoil device 100 then preferably comprises the second attachment means 121 of the second stop 120 on the motor vehicle engine 1, for example on its oil sump 15. This second attachment means 121 can comprise one or several screws passing through for example the second stop 120.
Comme illustré sur la figure 3, suite à un choc, le moteur 10 est reculé. Toutefois, ce recul est maîtrisé et limité. En effet, grâce à la présence du dispositif anti-recul 100, une voie d’efforts supplémentaire, c’est-à-dire un moyen de reprise d’efforts, suivant la direction longitudinale est créée entre une partie rigide du moteur 10, par exemple le carter d’huile 15, et le berceau avant 4. Ainsi, bien que le moteur 10 soit déplacé vers l’arrière à cause du choc, le moteur 10 est bloqué en progression vers l’arrière. Cette voie d’efforts peut s’opposer à environ 7000 daN. As illustrated in Figure 3, following a shock, the motor 10 is moved back. However, this decline is controlled and limited. Indeed, thanks to the presence of the anti-recoil device 100, an additional force path, that is to say a force recovery means, in the longitudinal direction is created between a rigid portion of the motor 10, for example, the oil sump 15, and the front cradle 4. Thus, although the engine 10 is moved backwards because of the shock, the motor 10 is blocked in progression towards the rear. This way of efforts can oppose about 7000 daN.
Comme illustré sur la figure 4, de préférence le premier moyen de fixation 130 est fixé sur le berceau avant 4, par exemple au niveau d’un bord avant 4’ du berceau avant 4. Le premier moyen de fixation 130 a par exemple une forme de pontet. Le premier moyen de fixation 130 est par exemple en acier et est soudé au berceau avant 4 de préférence en acier. Le premier moyen de fixation 130 est avantageusement traversé par la première butée 110 afin de pouvoir la guider aisément. A noter que le premier moyen de fixation 130 est fixé à la première butée 110, par exemple par soudage. De préférence encore, l’extrémité 111 arrière de la première butée 110 a une forme apte à faciliter son insertion dans le berceau avant 4. Ainsi, cette extrémité 111 est de préférence pointue, par exemple biseautée.
A l’état normal illustré sur la figure 1 , c’est-à-dire tant que le véhicule automobile 1 n’a pas subi de choc frontal, un jeu J entre la deuxième butée 120 et la première butée 110 est prévu. Ce jeu J est dimensionné de sorte à empêcher la transmission de vibrations et à permettre les débattements ou mouvements du moteur 10 au berceau avant 4, lors de l’utilisation du véhicule automobile 1. As illustrated in FIG. 4, preferably the first attachment means 130 is fixed on the front cradle 4, for example at a front edge 4 'of the front cradle 4. The first fixing means 130 has, for example, a shape trigger guard. The first fixing means 130 is for example made of steel and is welded to the front cradle 4, preferably of steel. The first fastening means 130 is advantageously traversed by the first stop 110 in order to be able to guide it easily. Note that the first attachment means 130 is fixed to the first stop 110, for example by welding. More preferably, the rear end 111 of the first stop 110 has a shape adapted to facilitate its insertion into the front cradle 4. Thus, this end 111 is preferably pointed, for example beveled. In the normal state illustrated in Figure 1, that is to say, as the motor vehicle 1 has not suffered a frontal impact, a clearance J between the second stop 120 and the first stop 110 is provided. This clearance J is dimensioned so as to prevent the transmission of vibrations and to allow the movements or movements of the motor 10 to the front cradle 4, during the use of the motor vehicle 1.
Ainsi, lors d’un choc, dans un premier temps initié au moment du contact du véhicule avec un obstacle, les première et deuxième butées se rapprochent. A la fin de ce premier temps, par exemple au bout de 70 ms, la première butée 110 et la deuxième butée 120 entrent en contact. Autrement dit, le jeu J est compensé intégralement par le recul du moteur 10. De préférence, le premier moyen de fixation 130 se déforme, tout en maintenant la première butée 110, de sorte à ce que l’extrémité arrière 111 de la première butée 1 10 vienne au contact du, voire se plante dans le, berceau avant 4, par exemple au niveau d’une coquille supérieure de ce berceau avant. Cette cinématique est favorisée par le guidage suivant la direction longitudinale de la première butée 110 par le premier moyen de fixation 130. Lors du choc, la première butée 110, tout du moins son extrémité arrière 111 , vient alors obligatoirement s’encastrer dans le berceau avant 4 et transmet les efforts du moteur 10 au berceau avant 4. Thus, during a shock, initially initiated at the time of contact of the vehicle with an obstacle, the first and second stops come closer. At the end of this first time, for example after 70 ms, the first stop 110 and the second stop 120 come into contact. In other words, the clearance J is fully compensated by the recoil of the motor 10. Preferably, the first attachment means 130 deforms, while maintaining the first stop 110, so that the rear end 111 of the first stop 1 10 comes into contact with, or even sinks into, the cradle before 4, for example at the level of an upper shell of the front cradle. This kinematics is favored by guiding in the longitudinal direction of the first stop 110 by the first attachment means 130. During the impact, the first stop 110, at least its rear end 111, then necessarily comes into the cradle before 4 and transmits the forces of the engine 10 to the cradle before 4.
Ensuite, dans un deuxième temps, par exemple au bout de 110 ms, le berceau avant 4 subit une déformation suite aux efforts transmis par la première butée 110, efforts ayant empêché, au moins en partie, le recul du moteur 10. Then, in a second step, for example after 110 ms, the front cradle 4 undergoes a deformation following the forces transmitted by the first stop 110, efforts having prevented, at least in part, the recoil of the motor 10.
Ainsi, les efforts liés au recul du moteur 10 lors d’un choc frontal sont repris par la première butée 110 et, éventuellement, par la déformation du berceau avant 4. Le recul du moteur 10 est alors limité et le tablier séparant le compartiment moteur de l’habitacle n’est pas ou peu impacté.
Il en résulte une absence d’intrusion au sein de l’habitacle éliminant ainsi les risques de blessures du ou des occupants du véhicule automobile. Thus, the forces related to the recoil of the engine 10 during a frontal impact are taken up by the first stop 110 and, possibly, by the deformation of the front cradle 4. The recoil of the engine 10 is then limited and the deck separating the engine compartment of the passenger compartment is not or little impacted. This results in an absence of intrusion into the passenger compartment thus eliminating the risk of injury to the occupants of the motor vehicle.
Alternativement, c’est le moteur, par exemple via son carter d’huile ou une boîte de vitesses, qui reçoit le premier moyen de fixation de la première butée. Dans ce cas, c’est la caisse, par exemple le berceau avant, qui reçoit le deuxième moyen de fixation de la deuxième butée (variante non illustrée). Alternatively, it is the engine, for example via its oil sump or a gearbox, which receives the first attachment means of the first stop. In this case, it is the body, for example the front cradle, which receives the second attachment means of the second stop (variant not shown).
L’élément 10 peut être un autre élément qu’un moteur à combustion interne, par exemple un moteur électrique. The element 10 may be another element than an internal combustion engine, for example an electric motor.
En outre, en cas de véhicule automobile hybride et/ou électrique, l’élément 10 peut être par exemple une batterie de propulsion volumineuse et/ou lourde disposée à l’avant du véhicule. In addition, in the case of a hybrid and / or electric motor vehicle, the element 10 may for example be a bulky and / or heavy propulsion battery disposed at the front of the vehicle.
En remarque, la solution atteint donc l’objet recherché de limiter le recul d’un moteur de véhicule automobile lors d’un choc avant et présente les avantages suivants : As a note, the solution thus achieves the object sought to limit the retreat of a motor vehicle engine during a front impact and has the following advantages:
- Elle peut être utilisée sur tous types de véhicules automobiles disposant d’un moteur à l’avant, - It can be used on all types of motor vehicles with a motor at the front,
- Elle est simple et économique, la première butée 110, la deuxième butée 120 et le premier moyen de fixation 130 étant par exemple des pièces en acier, par exemple obtenues par des procédés de fabrication classiques, - It is simple and economical, the first stop 110, the second stop 120 and the first attachment means 130 being for example steel parts, for example obtained by conventional manufacturing processes,
- Elle peut être mise au point tardivement au cours de la conception d’un véhicule automobile puisqu’elle est sans conséquence par rapport aux autres problématiques (résistance en cas de choc à une roue avant, endurance du train avant, acoustique au sein de l’habitacle...), - It can be developed late in the design of a motor vehicle since it is of no consequence compared to other issues (resistance in case of impact to a front wheel, endurance of the front axle, acoustics within the passenger ...)
- Elle peut être utilisée uniquement pour certaines versions d’un modèle de véhicule automobile, par exemple des versions recourant à un moteur
davantage volumineux et/ou particulièrement lourd, afin d’éviter d’avoir à renforcer la caisse pour ces versions. - It may be used only for certain versions of a motor vehicle model, for example versions using an engine more bulky and / or particularly heavy, to avoid having to strengthen the box for these versions.
L’invention est particulièrement bien adaptée à un véhicule automobile disposant d’un compartiment moteur à l’avant. Elle offre une meilleure sécurité pour le ou les occupants du véhicule lors d’un choc frontal. Elle porte sur un dispositif anti-recul d’un élément de véhicule automobile lors d’un choc avant. Elle porte également sur une caisse comprenant un tel dispositif anti-recul. Elle porte encore sur un moteur comprenant un tel dispositif anti-recul. Elle porte enfin sur un véhicule automobile comprenant une telle caisse ou un tel moteur ou un tel dispositif anti- recul.
The invention is particularly well suited to a motor vehicle having a motor compartment at the front. It provides better security for the occupant (s) of the vehicle during a frontal impact. It relates to an anti-recoil device of a motor vehicle element during a front impact. It also relates to a box comprising such an anti-recoil device. It still relates to an engine comprising such an anti-recoil device. Finally, it relates to a motor vehicle comprising such a box or such an engine or such an anti-recoil device.
Claims
Revendications claims
1 . Dispositif anti-recul (100) d’un moteur (10) de véhicule automobile (1 ) lors d’un choc avant, caractérisé en ce qu’il comprend une première butée (1 10) de type poutre destinée à s’étendre longitudinalement ou sensiblement longitudinalement, notamment s’étendant entre le moteur (10) et un élément de châssis (4) du véhicule automobile (1 ), la première butée (1 10) ayant au moins une extrémité (1 1 1 ) pointue, notamment une extrémité (1 1 1 ) biseautée, de sorte à ce que l’au moins une extrémité (1 1 1 ) se plante dans l’élément de châssis (4) ou dans le moteur (10) en cas de choc. 1. Anti-recoil device (100) of an engine (10) of a motor vehicle (1) during a front impact, characterized in that it comprises a first stop (1 10) beam type intended to extend longitudinally or substantially longitudinally, in particular extending between the motor (10) and a frame member (4) of the motor vehicle (1), the first stop (1 10) having at least one pointed end (1 1 1), in particular a end (1 1 1) beveled, so that the at least one end (1 1 1) is planted in the frame member (4) or in the motor (10) in case of impact.
2. Dispositif anti-recul (100) selon la revendication précédente, caractérisé en ce qu’il comprend un premier moyen de fixation (130) de la première butée (1 10) sur l’élément de châssis (4) ou sur le moteur (10) de véhicule automobile (1 ), notamment un premier moyen de fixation (130) en forme de pontet. 3. Dispositif anti-recul (100) selon l’une des revendications précédentes, caractérisé en ce qu’il comprend une deuxième butée (120), notamment un renfort, et un deuxième moyen de fixation (121 ) de la deuxième butée (120) sur le moteur (10) de véhicule automobile (1 ) ou sur l’élément de châssis (4). 2. anti-recoil device (100) according to the preceding claim, characterized in that it comprises a first fastening means (130) of the first stop (1 10) on the frame member (4) or on the engine (10) of a motor vehicle (1), in particular a first fastening means (130) shaped bridge. 3. Anti-recoil device (100) according to one of the preceding claims, characterized in that it comprises a second stop (120), in particular a reinforcement, and a second attachment means (121) of the second stop (120). ) on the motor vehicle engine (10) (1) or on the chassis element (4).
4. Dispositif anti-recul (100) selon la revendication 3, caractérisé en ce que la deuxième butée (120) est une plaque, notamment une plaque métallique. 5. Caisse (3) de véhicule automobile (1 ), notamment caisse (3) comprenant un élément de châssis (4) de type berceau avant, destinée à recevoir un premier moyen de fixation (130) d’une
première butée (110) ou un deuxième moyen de fixation (121 ) d’une deuxième butée (120), caractérisée en ce que la caisse (3) comprend un dispositif anti-recul (100) selon l’une des revendications précédentes. 4. anti-recoil device (100) according to claim 3, characterized in that the second stop (120) is a plate, in particular a metal plate. 5. Box (3) of a motor vehicle (1), in particular body (3) comprising a frame member (4) of the front cradle type, intended to receive a first fixing means (130) of a first stop (110) or a second attachment means (121) of a second stop (120), characterized in that the box (3) comprises an anti-recoil device (100) according to one of the preceding claims.
6. Moteur (10) de véhicule automobile (1 ), notamment moteur à combustion interne comprenant un carter d’huile (15), destiné à recevoir un premier moyen de fixation (130) d’une première butée (110) ou un deuxième moyen de fixation (121 ) d’une deuxième butée (120), caractérisé en ce que le moteur (10) comprend un dispositif anti-recul (100) selon l’une des revendications 1 à 4. Motor vehicle engine (10) (1), in particular an internal combustion engine comprising an oil sump (15) intended to receive a first fixing means (130) of a first stop (110) or a second fastening means (121) for a second stop (120), characterized in that the motor (10) comprises an anti-recoil device (100) according to one of claims 1 to 4.
7. Véhicule automobile (1 ), notamment véhicule automobile (1 ) comprenant un moteur (10) à l’avant, caractérisé en ce qu’il comprend une caisse (3) selon la revendication 5 ou un moteur7. Motor vehicle (1), especially a motor vehicle (1) comprising a motor (10) at the front, characterized in that it comprises a box (3) according to claim 5 or an engine
(10) selon la revendication précédente ou un dispositif anti-recul (100) selon l’une des revendications 1 à 4.
(10) according to the preceding claim or an anti-recoil device (100) according to one of claims 1 to 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18830482.8A EP3727918A1 (en) | 2017-12-21 | 2018-12-21 | Anti-recoil device for a motor vehicle component in the event of a front impact |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1762727 | 2017-12-21 | ||
FR1762727A FR3075725B1 (en) | 2017-12-21 | 2017-12-21 | ANTI-KICKBACK OF A MOTOR VEHICLE COMPONENT IN THE EVENT OF A FRONT IMPACT |
Publications (1)
Publication Number | Publication Date |
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WO2019122310A1 true WO2019122310A1 (en) | 2019-06-27 |
Family
ID=61028053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2018/086530 WO2019122310A1 (en) | 2017-12-21 | 2018-12-21 | Anti-recoil device for a motor vehicle component in the event of a front impact |
Country Status (3)
Country | Link |
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EP (1) | EP3727918A1 (en) |
FR (1) | FR3075725B1 (en) |
WO (1) | WO2019122310A1 (en) |
Citations (6)
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JP2002321648A (en) * | 2001-04-26 | 2002-11-05 | Honda Motor Co Ltd | Body structure of vehicle |
JP2003118632A (en) * | 2001-10-12 | 2003-04-23 | Nissan Motor Co Ltd | Front body structure of vehicle |
FR2921032A1 (en) * | 2007-09-19 | 2009-03-20 | Peugeot Citroen Automobiles Sa | SHOCK IMPACTOR FOR MOTOR POWERTRAIN GROUP |
DE202014103277U1 (en) * | 2013-07-25 | 2014-07-30 | Ford Global Technologies, Llc | Powertrain lifting hoops |
FR3027859A1 (en) * | 2014-10-30 | 2016-05-06 | Peugeot Citroen Automobiles Sa | CARTER WITH INTEGRATED AND ADAPTABLE IMPACTOR |
DE102014116649A1 (en) * | 2014-11-14 | 2016-05-19 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Passenger cars |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112008003307B4 (en) * | 2007-12-07 | 2022-05-05 | Toyota Jidosha Kabushiki Kaisha | Floor structure of a car body |
JP5329576B2 (en) * | 2011-01-26 | 2013-10-30 | 本田技研工業株式会社 | Vehicle body front |
FR2976863B1 (en) * | 2011-06-24 | 2013-07-05 | Peugeot Citroen Automobiles Sa | RETENTION SYSTEM OF A MOTORPOWER GROUP |
-
2017
- 2017-12-21 FR FR1762727A patent/FR3075725B1/en active Active
-
2018
- 2018-12-21 WO PCT/EP2018/086530 patent/WO2019122310A1/en unknown
- 2018-12-21 EP EP18830482.8A patent/EP3727918A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2002321648A (en) * | 2001-04-26 | 2002-11-05 | Honda Motor Co Ltd | Body structure of vehicle |
JP2003118632A (en) * | 2001-10-12 | 2003-04-23 | Nissan Motor Co Ltd | Front body structure of vehicle |
FR2921032A1 (en) * | 2007-09-19 | 2009-03-20 | Peugeot Citroen Automobiles Sa | SHOCK IMPACTOR FOR MOTOR POWERTRAIN GROUP |
DE202014103277U1 (en) * | 2013-07-25 | 2014-07-30 | Ford Global Technologies, Llc | Powertrain lifting hoops |
FR3027859A1 (en) * | 2014-10-30 | 2016-05-06 | Peugeot Citroen Automobiles Sa | CARTER WITH INTEGRATED AND ADAPTABLE IMPACTOR |
DE102014116649A1 (en) * | 2014-11-14 | 2016-05-19 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Passenger cars |
Also Published As
Publication number | Publication date |
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FR3075725A1 (en) | 2019-06-28 |
FR3075725B1 (en) | 2020-12-25 |
EP3727918A1 (en) | 2020-10-28 |
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