Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D35/00—Vehicle bodies characterised by streamlining
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
  • B62D25/08—Front or rear portions
  • B62D25/16—Mud-guards or wings; Wheel cover panels
  • B62D25/161—Mud-guards made of non-conventional material, e.g. rubber, plastics

Definitions

• the present invention is in the field of the development of a sub-assembly of lateral bodywork of a motor vehicle organized to improve the aerodynamics of the vehicle.
• the body subassembly of the invention relates to those comprising at least one wing trim participating in the formation, in particular in the environment of a wheel arch of the vehicle, a conveying conduit of a airflow from the front to the rear of the vehicle.
• the body of a motor vehicle is a frame on which are reported various components of the vehicle. Among these components, it is to consider the body elements or subassemblies forming a side trim of the vehicle. More specifically, such a lateral body subassembly may be installed in the area of passage of a wheel of the vehicle and comprise at least one wing and a wing trim.
• the wing classically dresses a longitudinal right or left side end of the longitudinal end of the vehicle, front or rear, being fixed to the body at a plurality of attachment points.
• the wing is docked against an arched box edge typically defining a wheel arch formed under the vehicle body and opening on the outer lateral side of the vehicle body.
• the wing then has a clearance providing access to the wheel well laterally from outside the vehicle.
• the wing trim is generally shaped ring portion and is fixed to the body and / or wing in a plurality of anchor points.
• the wing trim covers the edge of the wing delimiting its access clearance lateral to the wheel well, in particular to hide the landing area of the wing against the arched edge of the box and thus not break the line aesthetics of the vehicle in the wheel arch area. It is already specified the relative concepts commonly accepted to describe a bodywork of a motor vehicle.
• the concepts "before” and “rear” of the vehicle are relative concepts defined in the direction of forward movement of the vehicle identified by the driver station on board the vehicle.
• the driver at the vehicle control station in particular faces the direction of advance towards the front of the vehicle.
• the notion of "lateral” is identified by the sides of the vehicle distributed on either side of a transversely median longitudinal axis of the vehicle extending between the front and the rear of the vehicle.
• the concepts "right” and “left” are relative notions considered laterally with respect to a forward orientation of the vehicle.
• the notion of verticality is assessed in relation to the rolling plane of the vehicle and identifies, for example, the concepts of "lower” and “higher”, as well as the notions “above” and “below” relating to the positions between two organs. According to a vertical axis oriented perpendicular to the rolling plane of the vehicle, the concepts “above” and “above” mean “more distant from the rolling plane of the vehicle” than the concepts “lower” and "below”.
• the wrapping of the vehicle gives it its aerodynamics and exterior aesthetics to which the customer is particularly sensitive.
• An improvement in the aerodynamics of the vehicle reduces its propulsive energy consumption and therefore its impact on the environment to which the customer is equally sensitive.
• Customers are also particularly sensitive to the noise that can be perceived from inside the vehicle interior.
• a sub-assembly of the lateral body of a motor vehicle to improve its aerodynamics, by providing a channel path of a flow of air along the body subassembly.
• the air flow is generated during a progression of the vehicle forward, the air from outside the vehicle.
• the duct opens towards the front of the vehicle for the admission of the air flow inside the duct and towards the rear of the vehicle for the evacuation of the air flow out of the duct.
• the air flow enters the interior of the conduit through its upstream outlet oriented towards the front of the vehicle and is discharged from the conduit through its downstream outlet oriented towards the rear of the vehicle.
• the concepts upstream and downstream are relative notions considered according to the direction of flow of the air flow along the vehicle.
• a conduit is partly formed between a wing and a hubcap fitted to a front wheel well.
• the upstream outlet of the conduit leads to the wheel well and the downstream outlet of the conduit opens through a bodywork element longitudinally extending the wing trim towards the rear of the vehicle, such as the wing and / or a door. access to the passenger compartment of the vehicle.
• the present invention relates to a motor vehicle provided with a sub-assembly of lateral bodywork providing a conduit for circulating an air flow from the front to the rear of the vehicle.
• the subassembly of bodywork comprises at least one wing trim participating in the formation of the conduit. More particularly, the wing trim at least participates in the formation of a section of the duct.
• An object of the invention is to provide an arrangement of the conduit which improves the aerodynamic performance of the vehicle and therefore reduces its propulsive energy consumption.
• the propulsive energy of the vehicle is likely to be produced by a combustion engine and / or an electric motor.
• Another object of the invention is to give the vehicle a particular aesthetic line that can appeal to customers for the purchase of the vehicle or at least not to impede an act of purchase of the vehicle despite the aerodynamic performance of the vehicle obtained.
• the motor vehicle of the present invention is provided with a lateral body subassembly providing a duct for circulating a flow of air from the front to the rear of the vehicle.
• the body subassembly comprises at least one wing fitting a wheel arch opening laterally towards the outside of the vehicle.
• the wing is equipped with a wing trim participating in the formation of the duct.
• the motor vehicle is mainly recognizable in that the conduit comprises at least two duct sections each opening to the wheel well at a longitudinal distance from one another.
• the continuity of the duct is broken in the zone of the wheel arch by leaving two sections of duct which open each on the wheel well at a longitudinal distance from each other.
• the downstream outlet of an upstream duct section opens onto the wheel well being arranged opposite and at a longitudinal distance from the upstream outlet of a downstream duct section which opens out onto the wheel well.
• turbulence usually generated by the flow of air flowing along the wheel arches.
• obtaining a laminar flow of air flow along the wheel well is optimized and drag of the vehicle is reduced.
• the aerodynamics of the vehicle is improved and the noise nuisance usually generated by such turbulence is avoided.
• the formation of the duct sections can be used to improve the aesthetics of the vehicle in the wheel well area, especially from a symmetrical configuration on either side of the vertical axis of the wheel of the portions of the duct sections delimited at least in part by a wall of the hubcap facing the outside of the vehicle.
• the hubcap may be symmetrically shaped on either side of the vertical axis of the wheel by arranging at least one wall of the hubcap facing the outside of the vehicle to form the pipe sections while conferring a particular aesthetic harmonious to the hubcap.
• Such an arrangement can be achieved at lower costs while providing the results to achieve the aims of the invention.
• a remarkable form of the invention is the formation between the duct sections of an air flow generating device of an air curtain along the lateral outlet of the wheel well to the outside of the vehicle. More specifically, according to this remarkable embodiment of the invention, the outlets of the duct sections on the wheel passage together form a ventilation device of the duct capable of forming a curtain. of air at least partly along the lateral outlet of the wheel arch.
• the air coming from the air curtain is notably provided by the flow of air flowing through the duct during the progression of the vehicle.
• the air flow device generates a flow of air flow from the upstream pipe section along the wheel well, and then a drive of the air flow to the upstream outlet of the downstream pipe section.
• An air passage is thus generated along the lateral outlet of the wheel well to the outside of the vehicle, such an air passage forming an air curtain extending in particular in front of the wheel housed in the wheel well.
• the duct sections open in particular in an area of the wheel arch lined by its side outlet to the outside of the vehicle.
• the outlets of the pipe sections are in particular oriented in a substantially vertical plane defined by the substantially vertical extension of the lateral outlet of the wheel well to the outside of the vehicle.
• the outlets of the pipe sections extend vertically from the base of the wing trim or in other words from an area of the wing trim closest to the rolling plane of the vehicle.
• the outlets of the pipe sections extend vertically towards a limit defined by the tread of the wheel.
• the surface of the air curtain is thus optimized to extend at best along a half-volume of the wheel extending between its axis of rotation and its tread.
• the conduit sections comprise in particular at least one channel delimited by at least one wall of the wing trim.
• the channel of at least one of the pipe sections is formed inside the wing trim.
• the channel is formed between at least two walls of the hubcap oriented for one towards the wheel well and the other towards the outside of the vehicle.
• the channel of at least one of the duct sections is formed between a wall of the wing trim and a wall of the wing. More particularly in this case, the wall of the wing trim is particularly oriented towards the outside of the vehicle overlay of the wall of the wing in its area receiving the wing trim.
• the channel of at least one of the pipe sections can be arranged inside the wing trim and the channel of the one to less sections of duct may be formed between the wall of the hubcap and the wall of the wing.
• the channel of at least one of the duct sections at least partially houses fins oriented towards the other duct section. The fins form between them two by two circuits for passage of air flow through the channel.
• the fins are in particular planar conformation and oriented parallel to each other by delimiting between them air passage circuits of substantially the same volumes.
• the fins preferably extend at least partly inside the channel being in particular more or less oriented parallel to the rolling plane of the vehicle.
• the fins extend in their plane substantially parallel to the rolling plane. According to one variant, the fins may extend in their plane transversely to the rolling plane. According to one embodiment, the fins are formed by grids equipping the outlets of the channel of at least one of the pipe sections. According to one variant, the fins are formed by partition walls of the channel. According to one embodiment, at least one of the duct sections comprises a channel extension duct which is formed by at least one bodywork element of the body subassembly comprising at least the wing.
• At least one of the duct sections comprises a pipe adapted to be arranged in extension of the channel at least in the vehicle station allowing its progression.
• the pipe extends at least partly along the bodywork element being disposed permanently in extension of the channel.
• the pipe is arranged in extension of the channel when the bodywork element is placed in a position. position allowing the progression of the vehicle.
• the bodywork element providing the conduit comprises at least one access door to the passenger compartment of the vehicle.
• the pipe then extends the channel into a station of the vehicle allowing its progression, especially in the closed position of the door.
• the pipe may be arranged along the upstream part of the front wing and / or at least partly along at least one door. Driving may lead to the front of the vehicle through the front bumper.
• the pipe may be provided along the downstream portion of the wing and / or may open through the rear bumper.
• Figure 1 is an essentially side perspective illustration of a motor vehicle, illustrating the context of the invention.
• Figure 2 is an illustration in side view of an embodiment of a ventilation device according to the invention applied to a front wheel well of a motor vehicle.
• FIG. 3 is an essentially lateral perspective illustration of an embodiment of a ventilation device according to the invention applied to a rear wheel arch of a motor vehicle.
• FIG. 4 is a detail of Figure 3 illustrating a particular embodiment of the invention.
• Figure 5 is a schematic illustration in vertical section of an embodiment of a duct section participating in a ventilation device according to the invention.
• Figure 6 is a schematic illustration in vertical section of another embodiment of a duct portion participating in a ventilation device according to the invention.
• a motor vehicle 1 is represented as a progression station, in particular in a direction of progression SP oriented towards the front of the vehicle 1.
• the vehicle 1 extends in a following orthonormal frame:
• the vehicle 1 has wheel passages 3a, 3b housing the wheels 2 of the vehicle 1, including right and left front wheel arches 3a and right and left rear wheel arches 3b.
• the wheel arches 3a, 3b each delimit a lateral recess 4 of arcuate conformation to allow access to the wheel 2 which they house from outside the vehicle 1.
• the vehicle 1 comprises body sub-assemblies for restoring at least wheel wells 3a, 3b.
• the body subassemblies each comprise a wing 5 and a wing trim 6 to hide the docking area between the wing 5 and the chassis of the vehicle 1.
• the wing trim 6 is of arcuate conformation to follow the aesthetic line of the lateral outlet 4 of the wheel arch 3a, 3b.
• the wing 5 and the wing trim 6 extend essentially in a longitudinal extension plane of the vehicle 1.
• the concepts "substantially” or “substantially” particularly applied to a position and / or an orientation of an organ are indicative notions that may be considered rigorously or in an approximate manner, or in other words that may indicate an approximation of the position and / or orientation of the organ to which these indicative notions apply.
• At least the wing trim 6 accommodates a duct 7a, 7b or 8a, 8b for supplying an air stream FA flowing along the vehicle 1 when it is progressing. forward.
• the conduit comprises two duct sections 7a, 7b or 8a, 8b between which is provided a ventilation device 9b, 10a.
• an upstream duct 7a, 7b is at least formed by a wing trim 6 covering a front wheel well 3a.
• a downstream duct 8a, 8b is formed by a wing trim 6 covering a rear wheel well 3b.
• the terms downstream and upstream are identified along the direction SA of circulation of the airflow FA flowing successively through the ducts 7a, 7b or 8a, 8b.
• the duct sections 7a, 7b or 8a, 8b of a given duct are longitudinally formed on either side of the wheel well 3a, 3b or in other words on either side of a vertical axis A1 wheel 2 identifying its axis of rotation A2.
• the conduit sections 7a, 7b or 8a, 8b of a given duct extend in a substantially vertical plane near the lateral outlet 4 of the wheel well 3a, 3b.
• the ventilation device 9b, 10a is longitudinally arranged in interposition between the duct sections 7a, 7b or 8a, 8b of a duct given in the direction SA of circulation of the air flow FA through the duct sections 7a, 7b or 8a, 8b.
• the aeraulic device 9b, 10a provides a break in the continuity of the extension of the duct 7a, 7b or 8a, 8b.
• the duct sections 7a, 7b or 8a, 8b of a given duct are thus arranged at a longitudinal distance D1 from one another and open onto the wheel passage 3a, 3b towards each other.
• the pipe sections 7a, 7b or 8a, 8b of a given duct comprise at least one upstream pipe section 7a, 8a and at least one downstream pipe section 7b, 8b.
• the duct sections 7a, 7b or 8a, 8b are in particular formed in the lower zone of the wing trim 6 or in other words in the area of the wing trim 6 closest to the taxiing plane PR of the vehicle 1.
• the duct sections 7a, 7b or 8a, 8b extend substantially vertically from the base to a central zone of the wheel trims 6, which may be limited by the tread 11 of the wheel 2 considered in the zone. upper wheel 2 in the vertical direction DV.
• An upstream outlet 9a of the upstream pipe section 7a is open towards the front of the vehicle 1 for the admission of the air flow FA inside the upstream pipe section 7a.
• a downstream outlet 9b of the upstream duct section 7a opens on the wheel passage 3a or 3b for the evacuation of the air flow FA out of the upstream duct section 7a to the wheel well 3a, 3b.
• An upstream outlet 10a of the downstream duct section 7b opens out onto the wheel well 3a or 3b while being arranged opposite the downstream outlet 9b of the upstream duct section 7a, for admission inside the downstream duct section 7b of the duct 7a.
• An upstream outlet 10b of the downstream duct section 7b is open towards the rear of the vehicle 1 for evacuation of the air flow FA out of the downstream pipe section 7b.
• the air flow device comprises the downstream outlet 9b of the upstream pipe section 7a and the upstream outlet 10a of the downstream pipe section 7b, which cooperate with each other by their opening towards the wheel well 3a, 3b and their facing. one on the other at longitudinal distance D1 from one another.
• the air flow device 9b, 10a thus generates an air curtain R1 extending at least partly along the lateral outlet 4 of the wheel well 3a or 3b.
• the air curtain R1 is formed by the flow of air FA flowing from the downstream outlet 9b of the upstream pipe section 7a and the upstream outlet 10a of the downstream pipe section 7b.
• the duct sections 7a, 7b or 8a, 8b each delimit at least one channel 12 through which the air flow FA circulates.
• the channel 12 is delimited between walls 13a, 13b, 14 of the duct 7a, 7b or 8a, 8b.
• the channel 12 is delimited between a wall 14 of the wing 5 and a wall 13a of the hubcap 6.
• the sections 7a, 7b or 8a, 8b are at least partly formed by the wall 14 of the wing 5 and the wall 13a of the trim 6.
• the channel 12 is delimited between walls 13a, 13b of the hubcap 6, which is abutted against the wall 14 of the wing 5.
• the pipe sections 7a, 7b or 8a, 8b and form a unitary assembly 13a, 13b can be docked against the wall 14 of the wing 5.
• the channel 12 delimited by each of the pipe sections 7a, 7b or 8a, 8b houses fins 15 which are oriented substantially parallel to the rolling plane PR of the vehicle 1.
• the fins 15 housed in the channel 12 of a given pipe section 7a, 7b or 8a, 8b are substantially parallel to each other and are oriented in their plane towards the other of the pipe sections 7a, 7b or 8a , 8b and more specifically to the fins 15 that it comprises.
• the fins 15 extend along the channels 12 by being arranged in pairs vertically spaced D2 from each other or in other words being successively superimposed in the vertical direction DV d vehicle extension 1.
• the fins 15 partition the channels 12 by delimiting successively two by two circuits 16 for passage of the airflow FA through the channels 12.
• the fins 15 segment the flow of air FA into several fractions of airflow FA which flow through the circuits 16 along the pipe sections 7a, 7b or 8a, 8b.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Body Structure For Vehicles (AREA)
• Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=58401715

Family Applications (1)

Country Status (5)

Families Citing this family (6)

Family Cites Families (12)

• 2016
  • 2016-12-08 FR FR1662119A patent/FR3059974B1/fr not_active Expired - Fee Related
• 2017
  • 2017-11-16 BR BR112019009643A patent/BR112019009643A2/pt active Search and Examination
  • 2017-11-16 WO PCT/FR2017/053130 patent/WO2018104604A1/fr unknown
  • 2017-11-16 CN CN201780075626.0A patent/CN110049914A/zh active Pending
  • 2017-11-16 EP EP17811631.5A patent/EP3551523A1/de not_active Withdrawn

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