EP3649001A1 - Systeme de regulation d'air pour vehicule automobile - Google Patents
Systeme de regulation d'air pour vehicule automobileInfo
- Publication number
- EP3649001A1 EP3649001A1 EP18765945.3A EP18765945A EP3649001A1 EP 3649001 A1 EP3649001 A1 EP 3649001A1 EP 18765945 A EP18765945 A EP 18765945A EP 3649001 A1 EP3649001 A1 EP 3649001A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- flaps
- control system
- flap
- failure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/10—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers
-
- 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
Definitions
- the invention relates to an air regulation system for a motor vehicle.
- the front faces of motor vehicles may be composed of a main air inlet or two air inlets, called high and low track, separated by a bumper beam. Behind this bumper beam are generally placed the heat exchangers of the motor vehicle, such as that used for the air conditioning of the passenger compartment.
- Air guide channels for channeling air to the heat exchangers are generally used to improve their thermal performance.
- shutters for reducing the drag coefficient of the motor vehicle and a flap movement control device between a closed position of the air inlet and at least one open position. from the air inlet.
- Such an air intake management system is most often referred to by the acronym AGS, derived from the English expression "Active Grid Shutter”.
- AGS Air intake management system
- the air intake management system is preferably installed at a radiator grille of the motor vehicle.
- the air In the open position of the air inlet, the air can circulate through the calender and participate in particular in cooling the engine of the motor vehicle. In the closed position of the air inlet, the air does not enter via the grille which reduces drag and thus reduces fuel consumption and carbon dioxide emissions.
- the air intake management system therefore reduces energy consumption and pollution when the engine does not need to be cooled by outside air.
- One of the aims of the present invention is to provide an improved air regulation system.
- the invention thus relates to an air regulation system for a motor vehicle, comprising:
- each channel comprising a plurality of shutters, the shutters being configured to be movable between an open position allowing a flow of air to pass through the air channel and a shut-off position in which no air flow passes through said set of flaps,
- a security device configured to ensure the opening of at least one set of flaps in the event of failure of the flap assembly control device.
- control device flap assemblies means an element configured to rotate at least one or the plurality of flaps present within sets of flaps.
- a security device configured to ensure the opening of at least one of the sets of flaps is written, it is understood that the security device is able to move, for example by pivoting, the plurality of flaps. present within sets of flaps in the open position.
- the invention has the advantage that it is possible to completely close the air channels, when this is desired especially when it is not necessary to cool the heat exchange device, this total closure to reduce the fuel consumption of the vehicle and therefore the C02 emissions.
- the invention is particularly advantageous in that the module comprises two input channels so that in case of failure, it is possible to open only one of the two input channels, the other may remain closed to limit the air flows to the radiator.
- it is possible to disengage the shutter or flaps of the air intake management system in the event of detection of a failure, and to impose an opening of the shutter or shutters , which ensures optimum safety of the motor vehicle.
- the invention is particularly advantageous when two air inlet channels are provided.
- the air channels are arranged so that one is in the upper position and the other is in the lower position along a vertical axis when the air regulation system is mounted on a vehicle automobile, the safety device being arranged to open the set of shutters associated with the air channel in the lower position, lower position which makes it possible not to unduly reduce the performance due to the flow of air.
- the channels are one in the upper position and the other in the lower position when the module is mounted on the vehicle, the safety device being arranged to open the set of flaps associated with the channel. upper position.
- the security device being configured to open only one of the flap assemblies in case of failure of the flap assembly control device.
- the security device is configured to open the two sets of flaps in case of failure of the flap assembly control device.
- control device comprises two actuators each associated with a set of flaps. According to one aspect of the invention, alternatively, the control device comprises a common actuator associated with the two sets of flaps.
- the safety device comprises at least one drive member disposed between the control device of the flap assemblies and the flaps.
- the drive member comprises an intermediate wheel of a gear train having a first gear connected to the control device, a second gear connected to said at least one flap, and the wheel. intermediate gear, the safety device being configured so that, in the normal use position of the vehicle, the first gear engages the second gear via the intermediate gear.
- the air control system comprises a drive shaft configured to be driven by at least one actuator, a driver configured to be coupled to at least one flap, the safety device comprising an element linkage movably mounted between an engaged position, wherein the linkage element transmits movement between the drive shaft and the drive, and a disengaged position, wherein the linkage element disengages the drive shaft and the trainer in the event of failure of the flap assembly control device and at least one resilient member configured to bias the connecting element between the engaged position and the disengaged position.
- the safety device comprises a spring arranged to ensure the opening of the flaps in the event of failure of the flap assembly control device.
- the channels may be formed by upstream pipes arranged upstream of the flap assemblies.
- the air guide is for example obtained by bi-injection. Bi-injection makes it possible to inject two different materials into one tool. It is thus monobloc while being composed of different materials to provide in particular a softer material for the at least one upstream duct air inlet.
- the air channels are overmolded to a downstream main conduit.
- least one upstream air intake duct may have a shape general flaring forward, enlarging the side intended to be connected to the air intake of said motor vehicle. The flared shape of the upstream air intake duct also contributes to the flexibility of the air guide.
- the air guide may include at least one flap support configured to maintain a set of flaps.
- the air guide may comprise a carrier frame in which is formed the downstream main conduit.
- the carrier frame may comprise an exchanger support configured to maintain the heat exchange device of the motor vehicle.
- the air guide can thus support the heat exchangers and the ventilation system.
- the carrier frame may comprise two projector brackets arranged laterally on either side of the at least one main downstream conduit.
- the air guide can thus support the projectors.
- the invention also relates to a method for securing a set of flaps of an air control system according to one of the preceding claims, comprising the following step: ensure the opening of one at least sets of flaps in case of failure of the flap assembly control device.
- FIG. 1 represents a schematic side view and in vertical section of an air guide mounted in a motor vehicle
- FIG. 2 represents a schematic and front view of the air guide of FIG. 1 and elements of the motor vehicle
- FIG. 3 illustrates an exemplary embodiment of an air guide module viewed from the front
- FIG. 4 represents a safety device associated with the air regulation system of FIG. 1,
- FIGS. 1 and 2 illustrate a first example of an air regulation system 60 comprising an air guide 1.
- the air guide 1 is mounted at the front of a motor vehicle 2, between a carrier structure 3 of the front of the vehicle ("carrier” or “bolster” in English), generally connected to the wings and the longitudinal members of the vehicle. vehicle, and the shield of the vehicle in which is mounted the calender 4.
- the air guide 1 may be alternately mounted on a structural nozzle of the front face, the structural nozzle supporting the heat exchange device 5 of the vehicle as shown in FIG.
- the air guide 1 comprises at least one duct or main air channel 7 downstream connected to the heat exchange device 5 of the motor vehicle 2, an upstream air channel 8 arranged in the upper part and an air channel 9 upstream, arranged in the lower part.
- the downstream and upstream qualifiers with respect to the flow of an air flow are relative to the air regulation system 60.
- the main air channel 7 is arranged downstream of the control system 60 and the channels 8, 9 are arranged upstream of the air regulation system 60 which will be described later.
- the air ducts 8, 9 upstream are connected, on the one hand, to an inlet respective air 10, 11 of the motor vehicle 2 and open into the main air channel 7 to form a single conduit.
- the air intakes 10, 11, respectively called high way and low way, are formed at the front of the motor vehicle 2, behind grilles of the calender 4.
- the air inlets 10, 11, and by extension the air channels 8, 9, are arranged one above the other along a vertical axis once mounted in the vehicle.
- the air ducts 8, 9 form air inlet ducts 8 and 9.
- the air ducts 8, 9 are connected on the other hand to a common downstream main duct 7 for guiding the air from the entrances of air 10, 11 to the heat exchange device 5.
- the upstream air channels are connected to a respective main downstream duct, the air flows then remaining separated from the inputs of air to the main ducts.
- the heat exchange device 5 comprises at least one heat exchanger facing a rear opening of the main downstream pipe 7.
- the heat exchange device 5 comprises for example a condenser 12, a radiator 13 and a ventilation system 14.
- the superimposed air ducts 8, 9 extend in parallel and are connected to the main downstream duct 7 forming a transverse housing 15 in which is received a protective beam 16 of the motor vehicle 2.
- the air guide 1 may comprise the main downstream conduit 7 and the air channels 8, 9 made in one piece. The seal is thus improved because it is not necessary to seal several connected parts. Labor can be reduced because of the reduction in the number of parts to be assembled in a sealed manner, which reduces the costs of production. Also, disassembly of the air guide is facilitated.
- the air guide may also comprise the main downstream conduit 7 and the air ducts 8, 9 made in several parts.
- a set of flaps 1 9a, 1 9b is provided and the flaps 50 are for example formed panels or slats mounted pivotally transversely.
- the inclination of the flaps can be controlled between a vertical closing position blocking the passage of air and several intermediate positions to a horizontal opening position where a maximum air flow can flow.
- each flap 50 comprises an axis of rotation which makes it possible, by rotation, to open and close said flap. Opening a shutter 50 amounts to placing it (by rotation) so that it is as little as possible against the passage of the airflow while orienting it appropriately. Closing a shutter 50 amounts to placing it in such a way as to oppose as much as possible to the flow of the air flow, in cooperation with the other shutters 50.
- Said axes of rotation of the shutters 50 are parallel to each other. other.
- the rotations applied to all the flaps 50 are all rotations along the same axis, with a translation close.
- the flaps 50 are for example arranged in front of the heat exchange device 5, which in particular allows them to be closed in order to accelerate the rise in temperature of the exchangers during the heating phase by reducing the consumption of the vehicle 2.
- the flap assemblies 1 9a, 1 9b can be mounted in the air guide
- the support frame can be in two parts, a 1 8a carrying the set of flaps 19a arranged within the air channel 8 arranged in the upper or upper part of the air guide 1 and a 1 8b carrying the set of flaps 19b arranged within the air duct 9 arranged in the lower or lower part of the air guide 1.
- the support frame 18a, 18b can be made in one piece.
- Each support frame 18a, 18b may correspond to a frame comprising two side walls and two longitudinal walls so as to define a frame and an air channel 8, 9 through which the flow of air flows.
- each support frame 18a, 18b may comprise two side walls which, together with the walls of the air guide 1, define an air channel 8, 9 through which the flow of air flows.
- the flap assemblies 19a, 19b are able to completely close the air channels 8, 9 respectively.
- the air channels 8, 9 are defined by the air guide 1 only or defined by the air guide 1 and the support frames 18a, 18b or defined by the support frames 18a, 18b only.
- a set of flaps 19a, 19b is mounted in each upstream duct 8, 9, which improves the sealing.
- the air channels 8, 9 are made of flexible material, such as at least partially elastomeric material.
- the air channels 8, 9 are for example formed of EPDM material, SEBS, or PP polypropylene EPDM loaded.
- the air channels 8, 9 extend in a direction substantially perpendicular to a plane defined by a rear opening of the main downstream pipe 7 connected to the heat exchange device 5, that is to say horizontally once the air guide mounted in the motor vehicle 2.
- the length over which the air channels 8, 9 extend defines an absorption distance A on which the air guide 1 can deform to absorb the shocks.
- the air channels 8, 9 extend for example over an absorption distance A of between 50 and 200 millimeters, such as between 80 and 120 millimeters ( Figure 1).
- the air channels 8, 9 Due to their specific shapes and / or the properties of their materials, the air channels 8, 9 have a certain flexibility giving the air guide the ability to deform. This deformation capacity allows the air guide to absorb the energy of low speed shocks that can occur at the front of the vehicle 2, such as parking shocks, in particular to limit damage to vehicle components 2 located at the rear of the air guide, such as the heat exchange device 5. The air guide thus provides an additional function to the air channel by participating in the absorption of shocks.
- the air guide 1 ' is mounted on a structural nozzle 22 of the front face, supporting the heat exchange device 5.
- the flap assembly 19 can be mounted in the structural nozzle 22 at the rear air channels 8, 9.
- the air ducts 8, 9 have a sleeve shape, that is to say a thin annular wall whose end substantially forms a lip.
- the air channels 8, 9 also have a generally flared shape forward, enlarging the side intended to be connected to the air inlets 10, 11 of the motor vehicle 2.
- the sleeve shapes and flared air channels 8, 9 also participate in the flexibility of the guide of air 1.
- the air regulation system 60 comprises a control device 61 comprising an actuator 70 controls all the flaps 50 of the flap assemblies 19a, 19b which are pivotally mounted between a closed position, or shutter, air channels 8, 9 and at least one open position of the air channels 8, 9.
- the actuator 70 may for example be engaged with a movable rod which itself is engaged with the plurality of flaps so that the rotational movement transmitted to the connecting rod is retransmitted to the set of flaps 50 simultaneously.
- the actuator 70 under the effect of a control that can be pneumatic, electrical and / or mechanical, actuates the rotation of a connecting rod or at least one of the flaps 50.
- This flap 50 is then driven by pivoting at a defined angle, for example in a range of 0 to 90 °.
- the air regulation system comprises a safety device 100 for securing and disengaging the actuator 70 from the flaps 50.
- the safety device 100 is configured so that, in a first configuration, called the normal use configuration, the flaps 50 are driven in motion by the actuator 70.
- This configuration corresponds to the usual operation of the air management system installed in the motor vehicle.
- the flaps 50 pivot between the closed position and the open position.
- the security device 100 is configured so that, in a second configuration, called security configuration, the flaps 3 are independent in motion of the actuator 70.
- the safety device 100 comprises a gear train 111 disposed in a housing 112.
- the gear train 111 comprises a first, a second and a third gear wheel respectively referenced 113, 114 and 115, the intermediate wheel 115 being disposed between the first wheel 113 and the second wheel 114.
- the gear train 111 is straight type with straight teeth with parallel shafts.
- the invention is not limited to this type of gear and it is possible that the toothed wheels are of type with helical gears or any other type.
- the first gear 113 is connected to the actuator 70.
- a shaft 116 of the wheel 113 connects the wheel 113 to the actuator 70.
- the second gear 114 is connected to at least one of the flaps 50.
- the second gear 114 is connected to a lever 119
- Lever 119 can also correspond to one end of the flap 50, and in particular to the axis of rotation of the flap 50.
- displacement element 117 of the intermediate wheel 115 As can be seen in FIG. displacement element 117 of the intermediate wheel 115.
- the displacement element 117 is preferably an actuator, distinct from the actuator 70.
- the actuator 117 imparts a translational movement to the intermediate wheel 115.
- the translational movement operates in a direction parallel to the shafts of the gears 113 and 114.
- the translational movement spreads the toothing of the intermediate wheel 114 out of the toothings of the gears 113 and 114.
- the first wheel 113 is not able to mesh the wheel 115 and the wheel 115 to mesh the second wheel 114.
- the actuator 70 does not control the flaps 50 since the safety device 100 disengages the kinematics of the flaps 50 of the actuator 70.
- the safety device 100 comprises a control means 118 of the flaps 3 in the open position.
- the control means 118 comprises a spiral spring 118.
- the spiral spring 118 is wound in the center of the second gear 114.
- the spiral spring 118 is connected to the housing 112 on the one hand and the lever 119 on the other hand. In the normal use position, the control by the actuator 70 of the pivoting of the flaps 50 exerts a force on the spring 18.
- the second gear 114 In the safety position, the second gear 114 is not driven by the intermediate wheel 151 and only exerts on the lever 119 a force generated by the spring 118 which returns the flaps 50 in the open position.
- gear train 11 is not limited to the illustrated embodiment.
- Another embodiment of the security device 100 illustrated in FIG. 5 comprises:
- a drive shaft 201 configured to be driven by an actuator 70
- a trainer 202 configured to be coupled to at least one flap 50 or to a connecting rod
- a connecting element 203 mounted movably between:
- At least one resilient member 204 configured to bias the connecting member 203 between the engaged position and the disengaged position.
- the drive shaft 201 comprises a guide portion 205 configured to guide the displacement of the connecting element 203 between the engaged and disengaged positions, and said at least one elastic member 204 is connected by a part to the drive shaft 201 and secondly to the connecting element 203, being arranged at least partially inside the guide portion 205.
- the elastic member 204 comprises at least a first elastic element 215 made of shape memory material configured to deform between a first state and a second state, in the event of failure of the actuator 70 or the control device 61 of the flap assemblies 19a, 19b, and for axially biasing the connecting element 203 from the first state to the second state.
- the elastic member 204 in particular the first elastic element 215 made of shape memory material, has a generally "U” -shaped general shape with two substantially parallel branches connected by a substantially curvilinear base, the two branches of the "U” shape. Respectively having an end fixed to the connecting element 203, and said base of the "U” shape winding at least partially around a transverse axis arranged inside the drive shaft 201.
- the drive shaft 201 is configured to drive in motion the trainer 202 configured to drive in turn one or more flaps 50 or a connecting rod.
- an actuator 70 is provided for driving the drive shaft 201.
- the actuator 70 may or may not be integral with the safety device 100.
- the control of the actuator perhaps pneumatic, electrical or mechanical.
- the drive shaft 201 is configured to be rotated about a drive axis.
- the drive shaft 201 comprises, for example, a first portion 206, the section of which may have, in a nonlimiting manner, a star shape and a second part 205, for example substantially cylindrical.
- the first portion 206 is configured to be driven by the actuator 70.
- the second portion 206 is a guide portion configured to guide the movement of the link member 203 between the engaged and disengaged positions.
- the first 206 and second 205 parts here extend along the drive axis.
- the drive shaft 201 further comprises a junction portion 207 between the first 206 and second 205 portions of the drive shaft 201.
- the joining portion 207 may have a substantially circular shape of greater diameter than the diameter of the first 206 and second 205 parts and is for example concentric with the first 206 and second 205 parts.
- This joining portion 207 is shaped to cooperate with the trainer 202. Furthermore, the second portion 205 may have one or more notches 208 whose function will be detailed later. In addition, the drive shaft 201 may have a transverse axis extending inside the first portion 206. Similarly, the function of this transverse axis will be described later.
- the trainer 202 may be a control lever 202.
- coach 202 means any means for transmitting a movement to one or more flaps 50 or a connecting rod.
- the driver 202 is on the one hand directly or indirectly coupled to at least one flap 50 and is further configured to be coupled to the actuator 70 via the drive shaft 201 , so as to move the shutter or flaps 50 under the impulse of the actuator 70.
- the trainer 202 is for example coupled by shape cooperation to at least one flap 50 or the connecting rod.
- the actuator 70 controls the rotation of the trainer 202 which causes the translation of the link to which are connected the flaps 50 which are therefore rotated in turn.
- the driver 202 comprises a substantially disk-shaped 209 and an arm 210 extending from the disk 209 and configured to be coupled to at least one flap 50 for example via the connecting rod.
- the driver 202 has on the disk 209 a plurality of first teeth 211 alternated with a plurality of first depressions 212.
- This plurality of first alternating first 211 teeth 212 is also called the first toothing. More precisely, according to the embodiment described, this first toothing is formed on the internal surface of the disc 209.
- the first teeth 211 do not extend over the entire height of the disc 211 but only over a portion, here on a portion of the disk 211 on the side of the actuator 70 in the assembled state of the device 1.
- the arm 210 terminates in a fork shaped to cooperate with a drive finger of the rod or the flap 50.
- This link element 203 is:
- the connecting element 203 thus makes it possible to separate the flaps 50 of the actuator 70 by disengaging itself from the trainer 202.
- the connecting element 203 is in the example illustrated in FIG. 5 mounted movably in axial translation, c i.e. along the drive axis A
- the connecting element 203 is for example made in the form of a bell. More specifically, the connecting element 203 has an end portion from which extends a peripheral skirt. The peripheral skirt extends towards the trainer 202 in the assembled state of the safety device 100.
- the connecting element 203 may have a shape complementary to the second portion 205 of the drive shaft 201.
- the connecting element 203 may have a groove for at least partially receiving the second portion 205, more precisely the substantially cylindrical peripheral body of the second portion 205.
- the guiding of the connecting element 203 is therefore achieved by the sliding of the peripheral body of the second part 205 forming a guide part in the groove of the connecting element 203. This is a linear guide allowing the translational guidance of the connecting element 203 between the positions engaged and disengaged.
- the connecting element 203 may comprise one or more lugs 213 intended to engage in the slot or slots 208 of the second portion 205 of the drive shaft 201.
- the cooperation between this (these) lug (s) 213 and the slots 208 may also contribute to translational guiding of the connecting element 203 between the engaged and disengaged positions.
- the rotational connection and the translational guidance between the connecting member 203 and the drive shaft 201 is best provided in the second portion 205 of the drive shaft 201 to a suitable shape.
- the link member 203 may be formally engaged to the trainer 202 during normal operation.
- the connecting element 203 is of complementary shape to the shape of the disc 209 of the trainer 202.
- the connecting element 203 is configured to mesh with the trainer 202 in normal operation.
- the connecting element 203 has on the free end of the peripheral skirt arranged on the side of the driver 202, a second toothing 214 or gear.
- the second toothing 214 comprises a plurality of second alternating teeth with a plurality of second recesses, complementary to the first set of teeth 211, 212 of the trainer 202.
- the second teeth 214 of the connecting element 203 are configured to to interpose between the first teeth 211 of the trainer 202 so as to rotate together the connecting element 203 and the trainer 202 by complementary shape.
- the second toothing 214 of the connecting element is decoupled, disengaged from the first toothing of the trainer 202.
- the separation between the flaps 50 and the actuator 70 by the separation between the connecting element 203 and the drive 202 can be reversible.
- the trainer 202 is thus configured to be separated from the connecting element 203 in a reversible manner in the event of a failure of the actuator 7.
- the trainer 202 and the link element 203 may return. in the engaged position in which they are integral for example when the failure of the actuator 70n was only temporary.
- the safety device 100 comprises a means of displacement of the connecting element 203.
- the displacement means is configured to move the connection element 203 to the engaged position in normal operation, or vice versa to the disengaged position in case of failure of the actuator 70.
- the second toothing 214 or gear of the connecting element 203 and the moving means form a clutch and disengagement mechanism for coupling or disconnecting the connecting element 203 and the trainer 202
- the trainer 202 thus integrates a portion of the clutch and disengagement mechanism.
- the displacement means comprises at least one elastic member 204.
- elastic member means an elastically deformable element or a set of elastically deformable elements ensuring the function of biasing the connecting element 203 from the engaged position to the disengaged position and vice versa.
- the resilient member 204 is arranged at least partially inside the second portion 205 of the drive shaft 201 forming a guide portion, being connected on the one hand to the drive shaft 201 and on the other hand part to the element of 203. More precisely, one or more elastically deformable elements forming the elastic member 204 are thus arranged at least partially inside the second portion 205 of the drive shaft 201. Advantageously, all of the elastically deformable elements forming the elastic member 204 are arranged at least partially inside the second portion 205.
- the elastic member 204 comprises at least a first elastic element 215 of shape memory material.
- the elastic member 204 further comprises at least one second elastic element 216 forming a return means such as a return spring or a leaf spring.
- the first elastic element 204 of shape memory material it is for example a wire shape memory material or alternatively a spring shaped memory material.
- the first elastic member 215 of shape memory material can elastically deform between a first state and a second state.
- the first elastic member 215 of shape memory material may be in compressed or retracted form in the first state, and relaxed in the second state.
- the change of state of the first elastic member 215 of shape memory material can be triggered or activated by a change of power supply and / or under the effect of a temperature change.
- said first elastic member 215 may, from the compressed position, relax or lengthen a distance d sufficient to decouple the connecting member 203 and the trainer 202, here to disengage the second teeth 111 of the element 203 of the first hollows 212 of the coach 202.
- the second elastic element 216 or return spring is configured to axially urge the connecting element 203.
- the spring 216 can make it possible to coupling the drive 202 and the actuator 70 in the normal conditions of use, that is to say here in the absence of failure of the actuator 70. In other words, the spring 216 exerts a biasing force requesting the connecting element 203 to the engaged position.
- the spring 216 is arranged inside the second portion 205 of the drive shaft 201 forming the guide portion being connected firstly to the drive shaft 201 and secondly to the element link 203.
- the invention also relates to a method for securing a set of flaps 19a, 19b of an air control system comprising the following steps: it is first necessary to detect a failure of the control device 61 of the flap assemblies 19a, 19b, it is then necessary to activate the safety device 100 via an electrical control then open a flap assembly 19a, 19b.
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1757543A FR3069810B1 (fr) | 2017-08-04 | 2017-08-04 | Systeme de regulation d'air pour vehicule automobile |
| PCT/FR2018/051938 WO2019025708A1 (fr) | 2017-08-04 | 2018-07-27 | Systeme de regulation d'air pour vehicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3649001A1 true EP3649001A1 (fr) | 2020-05-13 |
Family
ID=60515516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18765945.3A Withdrawn EP3649001A1 (fr) | 2017-08-04 | 2018-07-27 | Systeme de regulation d'air pour vehicule automobile |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3649001A1 (fr) |
| FR (1) | FR3069810B1 (fr) |
| WO (1) | WO2019025708A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3104078A1 (fr) | 2019-12-09 | 2021-06-11 | Valeo Systemes Thermiques | Système de volets pilotés d’un véhicule comprenant deux ensembles de volets |
| FR3145515A1 (fr) | 2023-02-06 | 2024-08-09 | Psa Automobiles Sa | ProcÉdÉ de pilotage des entrÉes d’Air dans un vÉhicule automobile |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012012535A2 (fr) * | 2010-07-21 | 2012-01-26 | Shape Corp. | Absorbeur d'énergie intégré et structure de gestion de l'écoulement de l'air |
| US9573458B2 (en) * | 2012-10-03 | 2017-02-21 | Magna, International Inc. | Spring operated back-up/fail-safe module for active grille shutter systems |
| DE102013225610A1 (de) * | 2013-12-11 | 2015-06-11 | Röchling Automotive SE & Co. KG | Luftklappenvorrichtung |
| DE102014015070A1 (de) * | 2014-10-11 | 2015-07-09 | Daimler Ag | Kühlergrillanordnung für ein Fahrzeug, Verfahren zum Betrieb der Kühlergrillanordnung und Fahrzeug mit einer solchen Kühlergrillanordnung |
| DE102014225819A1 (de) * | 2014-12-15 | 2016-06-16 | Bayerische Motoren Werke Aktiengesellschaft | Luftzufuhreinstellvorrichtung für ein Kraftfahrzeug |
| US9878609B2 (en) * | 2015-10-28 | 2018-01-30 | Ford Global Technologies, Llc | Method and system for operating active grille shutters |
| FR3046756B1 (fr) * | 2016-01-20 | 2019-07-19 | Valeo Systemes Thermiques | Systeme de gestion d'entree d'air pour face avant de vehicule automobile |
-
2017
- 2017-08-04 FR FR1757543A patent/FR3069810B1/fr not_active Expired - Fee Related
-
2018
- 2018-07-27 EP EP18765945.3A patent/EP3649001A1/fr not_active Withdrawn
- 2018-07-27 WO PCT/FR2018/051938 patent/WO2019025708A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3069810A1 (fr) | 2019-02-08 |
| FR3069810B1 (fr) | 2020-06-26 |
| WO2019025708A1 (fr) | 2019-02-07 |
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