FR3006248A1 - PILOT AIR INLET MODULE FOR AUTOMOTIVE VEHICLE OPTIMIZED FOR PITCH SHOCKS - Google Patents
PILOT AIR INLET MODULE FOR AUTOMOTIVE VEHICLE OPTIMIZED FOR PITCH SHOCKS Download PDFInfo
- Publication number
- FR3006248A1 FR3006248A1 FR1354804A FR1354804A FR3006248A1 FR 3006248 A1 FR3006248 A1 FR 3006248A1 FR 1354804 A FR1354804 A FR 1354804A FR 1354804 A FR1354804 A FR 1354804A FR 3006248 A1 FR3006248 A1 FR 3006248A1
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- flaps
- air intake
- module
- cross member
- controlled air
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- 239000000463 material Substances 0.000 claims abstract description 12
- 210000000689 upper leg Anatomy 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 239000002826 coolant Substances 0.000 claims abstract description 3
- 230000035939 shock Effects 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 239000012815 thermoplastic material Substances 0.000 claims description 2
- 238000002604 ultrasonography Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 4
- 238000013016 damping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/08—Air inlets for cooling; Shutters or blinds therefor
-
- 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
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
-
- 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
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/08—Air inlets for cooling; Shutters or blinds therefor
- B60K11/085—Air inlets for cooling; Shutters or blinds therefor with adjustable shutters or blinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
- B60R2019/486—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds with air passages, e.g. for cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
- B60R2021/343—Protecting non-occupants of a vehicle, e.g. pedestrians using deformable body panel, bodywork or components
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Module (5) d'entrée d'air piloté destiné à être fixé à l'avant d'un véhicule automobile pour refroidir le liquide de refroidissement circulant dans le moteur thermique du véhicule, ledit module (5) comportant des volets (6) mobiles entre une position fermée et une position ouverte et des moyens (12) pour commander le déplacement de ces volets (6) entre ces deux positions, ce module (1) étant destiné en outre à être fixé dans une position telle qu'il puisse, en cas de choc piéton, recevoir l'impact du fémur de ce piéton, caractérisé en ce que ledit module (5) comprend un cadre périphérique comportant une traverse supérieure (7), une traverse inférieure (8) et deux montants latéraux (9, 10) entre lesquels sont fixés les volets mobiles (6), ladite traverse inférieure (8) et les deux montants latéraux (9, 10) étant en matière rigide et la traverse supérieure (7) étant en matière souple.Controlled air intake module (5) intended to be fixed to the front of a motor vehicle for cooling the coolant circulating in the engine of the vehicle, said module (5) comprising movable flaps (6) between a closed position and an open position and means (12) for controlling the movement of these flaps (6) between these two positions, this module (1) being further intended to be fixed in a position such that it can, in the event of a pedestrian impact, receive the impact of the pedestrian's femur, characterized in that said module (5) comprises a peripheral frame comprising an upper cross-member (7), a lower cross-member (8) and two lateral posts (9, 10) between which are fixed the movable flaps (6), said lower cross member (8) and the two lateral uprights (9, 10) being of rigid material and the upper cross member (7) being of flexible material.
Description
062 4 8 1 MODULE D'ENTREE D'AIR PILOTE POUR VEHICULE AUTOMOBILE OPTIMISE POUR LES CHOCS PIETON La présente invention concerne un module d'entrée d'air piloté destiné à être fixé à l'avant d'un véhicule automobile pour refroidir le liquide de refroidissement circulant dans le moteur thermique du véhicule. Les figures 1 et 2 montrent schématiquement en coupe verticale un module d'entrée d'air piloté 1 placé devant un radiateur 2 de refroidissement d'un moteur thermique (non représenté).The present invention relates to a piloted air inlet module intended to be fixed to the front of a motor vehicle to cool the liquid. cooling circulating in the engine of the vehicle. Figures 1 and 2 show schematically in vertical section a controlled air inlet module 1 placed in front of a cooling radiator 2 of a heat engine (not shown).
Le module 1 comprend un cadre 3 qui entoure une série de volets parallèles 4 montés pivotants chacun autour d'un axe fixe par rapport au cadre 3 entre une position ouverte (voir figure 1) et une position fermée (voir figure 2). Lorsque les volets 4 sont ouverts, ils sont situés chacun dans un plan horizontal et laissent passer entre eux de l'air qui permet de refroidir le liquide circulant dans le radiateur 2. Lorsque les volets 4 sont fermés, l'air ne traverse pas le module 1, ne refroidit pas le liquide circulant dans le radiateur 2 et par conséquent ce liquide peut s'échauffer. De façon connue, le déplacement des volets 4 entre les positions ouverte et 20 fermée peut être piloté par un actionneur coopérant avec un calculateur ou avec l'unité centrale de gestion du véhicule. Un module de ce type est décrit par exemple dans le brevet FR 2950574. Ce module présente par ailleurs la capacité de pouvoir absorber l'énergie d'un choc piéton. 25 Le but de la présente invention est de créer un module d'entrée d'air piloté, ayant en outre la capacité de pouvoir absorber de façon optimisée l'énergie d'un choc piéton en particulier d'un choc fémur. Ce but est atteint, selon l'invention, grâce à un module d'entrée d'air piloté destiné à être fixé à l'avant d'un véhicule automobile pour refroidir le liquide de 30 refroidissement circulant dans le moteur thermique du véhicule, ledit module comportant des volets mobiles entre une position fermée et une position ouverte et des moyens pour commander le déplacement de ces volets entre ces deux positions, ce module étant destiné en outre à être fixé dans une position telle qu'il puisse, en cas de choc piéton, recevoir l'impact du fémur de ce piéton, caractérisé en ce que ledit module comprend un cadre périphérique comportant une traverse supérieure, une traverse inférieure et deux montants latéraux entre lesquels sont fixés les volets mobiles, ladite traverse inférieure et les deux montants latéraux étant en matière rigide et la traverse supérieure étant en matière souple.The module 1 comprises a frame 3 which surrounds a series of parallel flaps 4 pivotally mounted each about a fixed axis relative to the frame 3 between an open position (see Figure 1) and a closed position (see Figure 2). When the flaps 4 are open, they are each located in a horizontal plane and let air pass between them to cool the liquid flowing in the radiator 2. When the flaps 4 are closed, the air does not cross the module 1, does not cool the liquid flowing in the radiator 2 and therefore this liquid can heat up. In known manner, the movement of the flaps 4 between the open and closed positions can be controlled by an actuator cooperating with a computer or with the central management unit of the vehicle. A module of this type is described for example in patent FR 2950574. This module also has the ability to absorb the energy of a pedestrian impact. The object of the present invention is to create a controlled air intake module, which furthermore has the capacity to be able to optimally absorb the energy of a pedestrian impact, in particular of a femoral shock. This object is achieved, according to the invention, by means of a controlled air intake module intended to be fixed at the front of a motor vehicle to cool the cooling liquid flowing in the engine of the vehicle, said module comprising flaps movable between a closed position and an open position and means for controlling the movement of these flaps between these two positions, this module being further intended to be fixed in a position such that it can, in case of shock pedestrian, receive the impact of the femur of the pedestrian, characterized in that said module comprises a peripheral frame having an upper rail, a lower rail and two lateral uprights between which are fixed the movable flaps, said lower rail and the two lateral uprights being made of rigid material and the upper cross member being made of flexible material.
Le fait que la traverse supérieure du cadre du module d'entrée d'air soit réalisé en matière souple et que le reste du cadre soit en matière rigide confère à ce cadre et à l'ensemble du module une capacité à se déformer sous l'effet d'un choc piéton, ce qui lui permet d'absorber de façon optimale l'énergie du choc. Dans un mode de réalisation préféré de l'invention, ladite traverse supérieure est en caoutchouc ou en élastomère et ladite traverse inférieure ainsi que les deux montants latéraux sont en matière plastique thermodurcissable ou thermoplastique rigide. Dans un mode de réalisation particulièrement avantageux, lesdits moyens pour commander le déplacement desdits volets coopèrent avec des moyens pour déterminer l'imminence d'un choc piéton et activer lesdits moyens pour commander le déplacement des volets vers la position assurant la meilleure capacité d'absorption de l'énergie du choc. Le fait que le déplacement des volets soit activé en cas de détection de l'imminence d'un choc piéton permet de protéger encore davantage le piéton contre les risques de blessure dus au choc. De préférence également, lorsque l'imminence d'un tel choc est déterminée, lesdits moyens sont activés pour commander le déplacement des volets vers la position ouverte. En effet, l'ouverture des volets permet au module de se déformer davantage 25 en cas de choc piéton et donc d'absorber davantage d'énergie. De préférence également, lors du choc piéton, les moyens de commande des volets sont activés pour déplacer ces volets vers leur position de fermeture à une vitesse prédéterminée en fonction de l'effet d'absorption de l'énergie du choc recherché. 30 Lesdits moyens de détermination de l'imminence du choc piéton peuvent comprendre un radar, une caméra, un émetteur ultrasons ou analogue.The fact that the upper cross member of the air intake module frame is made of flexible material and that the rest of the frame is made of rigid material gives the frame and the entire module an ability to deform under the effect of a pedestrian shock, which allows it to optimally absorb the energy of the shock. In a preferred embodiment of the invention, said upper cross member is made of rubber or elastomer and said lower cross member and the two side posts are made of thermosetting plastic or rigid thermoplastic material. In a particularly advantageous embodiment, said means for controlling the movement of said flaps cooperate with means for determining the imminence of a pedestrian impact and activate said means for controlling the movement of the flaps to the position ensuring the best absorption capacity. shock energy. The fact that the movement of the flaps is activated when the imminence of a pedestrian impact is detected makes it possible to further protect the pedestrian against the risks of injury due to impact. Also preferably, when the imminence of such a shock is determined, said means are activated to control the movement of the flaps to the open position. Indeed, the opening of the flaps allows the module to deform more 25 in case of pedestrian impact and therefore to absorb more energy. Also preferably, during the pedestrian impact, the shutter control means are activated to move these flaps to their closed position at a predetermined speed depending on the energy absorption effect of the desired impact. Said means for determining the imminence of the pedestrian impact may comprise a radar, a camera, an ultrasonic transmitter or the like.
Les moyens pour commander le déplacement desdits volets peuvent comprendre un ou plusieurs actionneurs, qui sont eux-mêmes commandés par un calculateur coopérant avec des moyens de détection. Selon un autre aspect, l'invention concerne également un véhicule automobile équipé d'un module d'entrée d'air piloté selon l'invention. De préférence, le module d'entrée d'air est fixé sous la traverse avant qui relie les deux brancards avant de la caisse du véhicule. Le module est ainsi positionné dans la zone d'impact du fémur d'un piéton et donc en mesure d'absorber efficacement un choc piéton du type fémur.The means for controlling the movement of said flaps may comprise one or more actuators, which are themselves controlled by a computer cooperating with detection means. According to another aspect, the invention also relates to a motor vehicle equipped with a controlled air intake module according to the invention. Preferably, the air intake module is fixed under the front cross member which connects the two front stretchers of the vehicle body. The module is thus positioned in the impact zone of the femur of a pedestrian and therefore able to effectively absorb a pedestrian shock of the femur type.
De préférence également, la traverse souple supérieure du cadre du module d'entrée d'air est en contact avec ladite traverse avant. Cette disposition permet de créer une liaison souple entre la traverse avant et le cadre pour que ce dernier puisse se déformer en cas de choc piéton. D'autres particularités et avantages de l'invention apparaîtront encore tout au long de la description ci-après. Aux dessins annexés, donnés à titre d'exemples, non limitatifs : - la figure 3 est une vue en perspective montrant un module d'entrée d'air selon l'invention, fixé sous la traverse avant d'un véhicule automobile, - la figure 4 est une vue en perspective montrant le module d'entrée d'air seul, les volets étant fermés, - la figure 5 est un schéma bloc montrant les moyens de détection, les moyens de commande et le calculateur associés au module d'entrée d'air piloté selon l'invention. Les figures 3 et 4 représentent un module 5 d'entrée d'air piloté destiné à 25 être fixé à l'avant d'un véhicule automobile pour refroidir le liquide de refroidissement circulant dans le moteur thermique du véhicule. Ce module 5 comporte (voir figure 5) des volets 6 mobiles entre une position fermée et une position ouverte et des moyens, tels qu'un actionneur 7, pour commander le déplacement de ces volets 6 entre ces deux positions. 30 Dans la position fermée, les volets 6 sont tous situés dans un même plan, tandis que dans la position ouverte, les volets 6 sont situés chacun dans un plan perpendiculaire au plan précité.Also preferably, the upper flexible cross member of the frame of the air intake module is in contact with said front cross member. This arrangement makes it possible to create a flexible connection between the front cross member and the frame so that the latter can be deformed in the event of a pedestrian impact. Other features and advantages of the invention will become apparent throughout the description below. In the accompanying drawings, given by way of nonlimiting example: FIG. 3 is a perspective view showing an air intake module according to the invention, fixed under the front crossmember of a motor vehicle; FIG. 4 is a perspective view showing the air intake module alone, the flaps being closed; FIG. 5 is a block diagram showing the detection means, the control means and the computer associated with the input module; driven air according to the invention. Figures 3 and 4 show a piloted air inlet module 5 for attachment to the front of a motor vehicle for cooling the coolant circulating in the engine of the vehicle. This module 5 includes (see Figure 5) flaps 6 movable between a closed position and an open position and means, such as an actuator 7, to control the movement of these flaps 6 between these two positions. In the closed position, the flaps 6 are all located in the same plane, while in the open position, the flaps 6 are each located in a plane perpendicular to the aforementioned plane.
Le module 5 est destiné en outre à être fixé dans une position telle qu'il puisse, en cas de choc piéton, recevoir l'impact du fémur de ce piéton. Comme on le voit sur les figures 3 et 4, le module 5 comprend un cadre périphérique comportant une traverse supérieure 7, une traverse inférieure 8 et deux montants latéraux 9, 10 entre lesquels sont fixés de façon pivotante les volets mobiles 6. La traverse inférieure 8 et les deux montants latéraux 9, 10 sont en matière rigide et la traverse supérieure 7 est en matière souple. Dans l'exemple représenté sur les figures 3 et 4, le cadre du module 5 10 comporte en outre un montant central 11 qui est en matière rigide comme les deux autres montants 9, 10. A titre d'exemple, la traverse supérieure 7 peut être en caoutchouc ou en élastomère et la traverse inférieure 8 ainsi que les trois montants 9, 10, 11 peuvent être en matière plastique thermodurcissable ou thermoplastique rigide. 15 Le module 5 comprend en outre des moyens tels qu'un actionneur 12 (voir figure 4) pour commander le déplacement des volets 6 et des moyens pour déterminer l'imminence d'un choc piéton agencés pour activer les moyens pour commander le déplacement des volets 6 vers la position assurant la meilleure capacité d'absorption du choc piéton. 20 Ainsi, lorsque l'imminence d'un tel choc est déterminée, les moyens ci- dessus peuvent commander le déplacement des volets 6 vers la position ouverte. Les moyens de détection du choc piéton peuvent comprendre un radar, une caméra ou un émetteur d'ultrasons. Par ailleurs, les moyens pour commander le déplacement des volets 6 25 peuvent comprendre un ou plusieurs actionneurs, qui sont eux-mêmes commandés par un calculateur coopérant avec les moyens de détection ci-dessus. Le schéma de la figure 5 montre schématiquement un piéton 13, des moyens 14 tels qu'un radar pour détecter le piéton 13, la distance entre le véhicule et le 30 piéton, la vitesse du véhicule, etc..., un calculateur 15 pour déterminer l'imminence d'un choc entre le véhicule et le piéton 13 et l'actionneur 12 pour commander l'ouverture des volets 6 et piloter leur fermeture progressive pour optimiser la courbe d'absorption de l'effort.The module 5 is also intended to be fixed in a position such that, in the event of a pedestrian impact, it can receive the impact of the pedestrian's femur. As can be seen in FIGS. 3 and 4, the module 5 comprises a peripheral frame comprising an upper crossmember 7, a lower crossmember 8 and two lateral posts 9, 10 between which are pivotally attached the movable flaps 6. The lower crossmember 8 and the two lateral uprights 9, 10 are rigid material and the upper cross member 7 is flexible material. In the example shown in FIGS. 3 and 4, the frame of the module 10 further comprises a central upright 11 which is made of rigid material such as the other two uprights 9, 10. For example, the upper crossmember 7 can be rubber or elastomer and the lower rail 8 and the three uprights 9, 10, 11 may be of thermosetting plastic or rigid thermoplastic. The module 5 further comprises means such as an actuator 12 (see FIG. 4) for controlling the movement of the flaps 6 and means for determining the imminence of a pedestrian impact arranged to activate the means for controlling the movement of the flaps 6 to the position ensuring the best absorption capacity of the pedestrian impact. Thus, when the imminence of such a shock is determined, the above means can control the movement of the flaps 6 to the open position. The pedestrian impact detection means may comprise a radar, a camera or an ultrasound transmitter. Furthermore, the means for controlling the movement of the flaps 6 may comprise one or more actuators, which are themselves controlled by a computer cooperating with the above detection means. The diagram of FIG. 5 schematically shows a pedestrian 13, means 14 such as a radar for detecting the pedestrian 13, the distance between the vehicle and the pedestrian, the speed of the vehicle, etc., a calculator 15 for determine the imminence of a shock between the vehicle and the pedestrian 13 and the actuator 12 to control the opening of the flaps 6 and control their gradual closure to optimize the absorption curve of the effort.
La figure 3 montre également que le module 5 d'entrée d'air piloté est fixé sous la poutre transversale avant 16 qui relie les deux brancards avant (non représenté) de la caisse du véhicule. On voit sur cette figure que la traverse souple supérieure 7 du cadre du module 5 d'entrée d'air est en contact avec la poutre transversale avant 16. Cette traverse supérieure 7 en matière souple comprend sur son bord supérieur des pattes 17 munies de trous pour fixer cette traverse 7 à la poutre transversale avant 16 du véhicule. Ainsi, une liaison souple existe entre la traverse avant 16 et la partie 10 supérieure du cadre du module 5. De ce fait, ce cadre peut se déformer en cas de choc piéton et par conséquent absorber ce choc pour protéger le piéton. On va maintenant décrire le fonctionnement du dispositif que l'on vient de décrire. 15 On supposera que les moyens 14 embarqués dans le véhicule détectent un piéton 13 à une certaine distance du véhicule. En prenant en compte des paramètres, tels que la distance entre le véhicule et le piéton et la vitesse du véhicule, le calculateur 15 détermine si le choc entre le véhicule et le piéton est imminent ou non, c'est-à-dire inévitable ou non. 20 Dans l'affirmative, un signal déclenche l'actionneur 12 qui va commander l'ouverture des volets 6. L'ouverture des volets 6 rend le cadre du module plus déformable que lorsque ces volets 6 sont fermés. En effet, dans ce dernier cas, les volets 6 se touchent mutuellement, ce qui a 25 pour effet de rigidifier le cadre du module 5. Ainsi, lors du choc, la déformation du cadre du module 5 absorbe de façon optimale l'énergie du choc piéton. Après le début du choc, le calculateur ou l'unité centrale de gestion embarqué dans le véhicule calcule la vitesse d'ouverture des volets 6 qu'il faut 30 régler pour obtenir l'effet d'absorption de l'énergie du choc que l'on veut obtenir. Il faut en effet que la vitesse d'ouverture des volets 6 ne soit ni trop rapide, ni trop lente.FIG. 3 also shows that the piloted air intake module 5 is fixed under the front transverse beam 16 which connects the two front stretchers (not shown) of the vehicle body. It can be seen in this figure that the upper flexible cross member 7 of the frame 5 of the air intake module is in contact with the transverse beam before 16. This upper cross member 7 of flexible material comprises on its upper edge legs 17 provided with holes to fix this crossbar 7 to the transverse beam before 16 of the vehicle. Thus, a flexible connection exists between the front cross member 16 and the upper part of the frame of the module 5. As a result, this frame can be deformed in the event of a pedestrian impact and therefore absorb this shock to protect the pedestrian. We will now describe the operation of the device that has just been described. It will be assumed that the means 14 on board the vehicle detect a pedestrian 13 at a certain distance from the vehicle. Taking into account parameters, such as the distance between the vehicle and the pedestrian and the speed of the vehicle, the computer 15 determines whether the collision between the vehicle and the pedestrian is imminent or not, that is to say inevitable or no. If so, a signal triggers the actuator 12 which will control the opening of the flaps 6. The opening of the flaps 6 makes the frame of the module more deformable than when these flaps 6 are closed. Indeed, in the latter case, the flaps 6 touch each other, which has the effect of stiffening the frame of the module 5. Thus, during the shock, the deformation of the frame of the module 5 optimally absorbs the energy of the pedestrian shock. After the start of the shock, the computer or the central management unit on board the vehicle calculates the opening speed of the flaps 6 which must be adjusted to obtain the effect of absorbing the energy of the shock that the we want to get. It is indeed necessary that the opening speed of the flaps 6 is neither too fast nor too slow.
Si cette vitesse est trop rapide, l'amortissement des effets du choc risque d'être négligeable, tandis que si cette vitesse est trop lente, cet amortissement risque d'être trop brutal. Lorsque le module d'entrée d'air piloté est du type « à double cassette », le module placé en partie supérieure pourra avantageusement contribuer au choc piéton du type tête.If this speed is too fast, the damping of the effects of the shock may be negligible, whereas if this speed is too slow, this damping may be too abrupt. When the piloted air inlet module is of the "double cassette" type, the module placed in the upper part can advantageously contribute to the pedestrian impact of the head type.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1354804A FR3006248B1 (en) | 2013-05-28 | 2013-05-28 | PILOT AIR INLET MODULE FOR AUTOMOTIVE VEHICLE OPTIMIZED FOR PITCH SHOCKS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1354804A FR3006248B1 (en) | 2013-05-28 | 2013-05-28 | PILOT AIR INLET MODULE FOR AUTOMOTIVE VEHICLE OPTIMIZED FOR PITCH SHOCKS |
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| Publication Number | Publication Date |
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| FR3006248A1 true FR3006248A1 (en) | 2014-12-05 |
| FR3006248B1 FR3006248B1 (en) | 2015-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| FR1354804A Active FR3006248B1 (en) | 2013-05-28 | 2013-05-28 | PILOT AIR INLET MODULE FOR AUTOMOTIVE VEHICLE OPTIMIZED FOR PITCH SHOCKS |
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Cited By (4)
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| WO2017007312A1 (en) * | 2015-07-07 | 2017-01-12 | Mci (Mirror Controls International) Netherlands B.V. | Adjustment device for adjusting shutoff elements of an air inlet of a motor compartment of a motor vehicle, provided with an emergency adjustment device for opening the shutoff elements |
| FR3071438A1 (en) * | 2017-09-25 | 2019-03-29 | Psa Automobiles Sa | AUTOMOTIVE VEHICLE PILOTED AIR INLET GRILLE WITH RABBABLE PIPE PARTITIONS |
| FR3114775A1 (en) * | 2020-10-06 | 2022-04-08 | Psa Automobiles Sa | AIR INTAKE MODULE FOR MOTOR VEHICLES ADAPTED FOR PEDESTRIAN IMPACTS |
| FR3123261A1 (en) | 2021-05-31 | 2022-12-02 | Psa Automobiles Sa | Device for controlled regulation of the incoming air flow of a vehicle optimized for shock repairability |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2963660C (en) * | 2016-04-22 | 2023-09-05 | Magna International Inc. | Active grille shutter multi part modular frame |
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| DE102009032592A1 (en) * | 2009-07-10 | 2011-01-13 | GM Global Technology Operations, Inc., Detroit | Front part for motor vehicle body, has bumper and mobile closure element that is arranged in fresh air duct for modulating flow rate of fresh air duct, and bumper carrier provided to form wall for fresh air duct |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017007312A1 (en) * | 2015-07-07 | 2017-01-12 | Mci (Mirror Controls International) Netherlands B.V. | Adjustment device for adjusting shutoff elements of an air inlet of a motor compartment of a motor vehicle, provided with an emergency adjustment device for opening the shutoff elements |
| NL2015106B1 (en) * | 2015-07-07 | 2017-01-31 | MCI (Mirror Controls International) Netherlands B V | Adjusting device for adjusting closing elements of an air inlet of a motor compartment of a motor vehicle, provided with an emergency adjusting device for opening the closing elements. |
| FR3071438A1 (en) * | 2017-09-25 | 2019-03-29 | Psa Automobiles Sa | AUTOMOTIVE VEHICLE PILOTED AIR INLET GRILLE WITH RABBABLE PIPE PARTITIONS |
| FR3114775A1 (en) * | 2020-10-06 | 2022-04-08 | Psa Automobiles Sa | AIR INTAKE MODULE FOR MOTOR VEHICLES ADAPTED FOR PEDESTRIAN IMPACTS |
| FR3123261A1 (en) | 2021-05-31 | 2022-12-02 | Psa Automobiles Sa | Device for controlled regulation of the incoming air flow of a vehicle optimized for shock repairability |
| WO2022254110A1 (en) | 2021-05-31 | 2022-12-08 | Psa Automobiles Sa | Device for controlled regulation of the flow of air entering a vehicle optimised for impact reparability |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3006248B1 (en) | 2015-05-29 |
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