CN118124683A - Air dam system for vehicle and vehicle - Google Patents

Abstract

The invention provides an air dam system for a vehicle and the vehicle. The air dam system comprises at least one air dam device mounted at the bottom of a vehicle, the air dam device comprising at least one spoiler and a support plate adjacent to or attached to the bottom of the vehicle, each spoiler having opposite first and second ends, the first end of each spoiler being hinged to the support plate of the corresponding air dam device, and each spoiler being arranged to be controllably rotated to a closed condition adjacent to or attached to the support plate and an extended condition downwardly away from the support plate. The invention can directly attach the air dam device as a whole to the bottom plate of the vehicle, parts can be independently detached, and the air dam device can be independently attached, thereby being convenient for production and maintenance.

Description

Air dam system for vehicle and vehicle

Technical Field

The invention relates to the technical field of vehicles, in particular to an air dam system for a vehicle and the vehicle.

Background

Air dams have an important role in reducing vehicle energy consumption. An air dam may be installed under a front bumper of an automobile to control a flow rate of air with respect to the vehicle, enhance dynamics and handling of the vehicle and increase a traction coefficient of the vehicle body, or generate a down force thereon.

Disclosure of Invention

It is an object of the present invention to provide an air dam system that can be integrally attached directly to the bottom of a vehicle.

The invention further aims to solve the problem of aerodynamic force at the front bottom of the vehicle under different running conditions, improve the control stability of the vehicle, reduce the running resistance of the vehicle, reduce the oil consumption/electricity consumption of the whole vehicle and provide better vehicle-computer interaction experience for a user.

In particular, the present invention provides an air dam system for a vehicle, said air dam system comprising at least one air dam device mounted to the bottom of the vehicle, said air dam device comprising at least one spoiler, each said spoiler having opposite first and second ends,

The first end of each spoiler is hinged to the support plate of the corresponding air dam device, and each spoiler is arranged to be controllably rotated to a closed state adjacent to or attached to the support plate and a deployed state downwardly away from the support plate.

Through at least one air dam device of installation in the bottom of vehicle, every air dam device includes spoiler and backup pad to make the spoiler rotate with the backup pad control, not only promote the aerodynamic performance of vehicle, can also through installing the backup pad on the bottom plate of vehicle, thereby realize directly installing the air dam device as a whole to the bottom plate of vehicle on, the part can dismantle alone, and can install alone, be convenient for production and maintenance.

Optionally, each air dam device further comprises a driving mechanism, the driving mechanism comprises:

a motor body;

the driving shaft is connected with the motor body, and the motor body drives the driving shaft to rotate;

And one end of the connecting rod assembly is fixedly connected with the driving shaft, the other end of the connecting rod assembly is hinged with the spoiler, and the connecting rod assembly moves under the driving of the driving shaft and drives the spoiler to rotate relative to the supporting plate.

By arranging the driving mechanism, the active driving of the air dam system can be realized.

Optionally, the connecting rod assembly includes:

The first connecting rod is fixedly arranged on the driving shaft;

The second connecting rod is hinged with the first connecting rod and the spoiler, so that the spoiler is driven to rotate relative to the supporting seat when the first connecting rod rotates in a controlled manner.

In this embodiment scheme, the rotation of spoiler just can be realized through this first connecting rod and second connecting rod to this link assembly, simple structure, and first connecting rod can with drive shaft integrated into one piece, further reduces the quantity of spare part.

Optionally, the spoiler comprises a first side surface and a second side surface which is away from the first side surface, the spoiler extends along the transverse direction of the vehicle, and the first side surface of the spoiler is a windward side when in the unfolded state;

the spoiler has a connecting member extending from the second side surface toward the connecting rod assembly, the connecting member being respectively hinged with the support plate and the second connecting rod.

Optionally, the air dam system includes a plurality of air dam devices, and the plurality of air dam devices share a driving device to drive the spoilers of the plurality of air dam devices to rotate.

Optionally, a side of the support plate adjacent the first end of the spoiler is provided with a plurality of preassemblies spaced apart, each of the preassemblies being configured to be rotatably connected to a bottom of the vehicle to suspend the air dam device to the bottom of the vehicle by the plurality of preassemblies.

Optionally, the air dam device further comprises a cover plate covering a side of the support plate away from the spoiler, a side of the cover plate away from the first end of the spoiler being provided with a plurality of pre-fixtures at intervals, each of the pre-fixtures being configured to be cooperatively fixed with the bottom of the vehicle after the plurality of pre-fixtures are pre-assembled to the bottom of the vehicle to pre-fix the support plate at a position to be assembled.

In the prior art, operators often need to make the air dam device approximately parallel to the bottom of the vehicle and then mount the air dam device on the bottom plate from bottom to top, and the mounting mode has limited mounting view angle and difficult mounting. Compared with the prior art, in the scheme of the invention, an operator can install the air dam device to the bottom of the vehicle from bottom to top in a mode of being approximately perpendicular to the bottom plate, then the air dam device is rotated for a certain angle, and the installation view angle is greatly increased, so that the installation difficulty of installing the aerodynamic device in a limited installation space is reduced, and the operation possibility of a single person can be realized.

Optionally, the number of the air dam devices is two, and the two air dam devices are symmetrically arranged at the left side and the right side of the bottom of the vehicle.

Optionally, the number of the air dam devices is at least three, and at least three of the air dam devices are arranged in the lateral direction of the vehicle.

Optionally, the air dam system further comprises a controller connected with the at least one air dam device, and the controller is configured to determine the opening and closing states of the spoiler for controlling the at least one air dam device according to the vehicle working conditions.

Optionally, the controller is configured to turn on a welcome mode when the vehicle is in a stationary and unlocked state, so that the at least one air dam device is turned on and off according to a preset rule.

Optionally, when the number of the air dam devices is multiple, all air dam devices in the multiple air dam devices are in the closed state and serve as a first position state, only two air dam devices at the outermost side in the multiple air dam devices are in the open state and serve as a second position state, and all air dam devices in the multiple air dam devices are in the open state and serve as a third position state;

The preset rule is that the plurality of air dam devices periodically and sequentially open the first position state, the second position state and the third position state, and then sequentially close the third position state, the second position state and the first position state.

Optionally, the controller is configured to determine and control the on-off states of the plurality of air dam devices according to a mode in which the air dam system is located, an active grille starting state of the vehicle, and/or a speed of the vehicle when the vehicle is in a driving condition.

Optionally, the controller is configured to control all of the plurality of air dam devices to be turned on when the air dam system is in an automatic mode and the active grille is in an on state when the vehicle is in a driving condition;

The controller is configured to control only the outermost two air dam devices of the plurality of air dam devices to be opened when the air dam system is in an automatic mode, the active grille is in a closed state and the vehicle speed is greater than a preset speed when the vehicle is in a running condition;

The controller is configured to control all of the plurality of air dam devices to be closed when the air dam system is in an automatic mode, the active grille is in a closed state, and the vehicle speed is less than or equal to a preset speed when the vehicle is in a driving condition.

According to the scheme, intelligent control of the front air dam of the automobile can be realized, so that the air dike root is opened and selected according to different running conditions of the automobile, the system control stability of the automobile is improved, and the oil consumption and the electricity consumption of the whole automobile are reduced.

In particular, the invention also provides a vehicle comprising an air dam system as described above.

The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

FIG. 1 shows a schematic block diagram of a vehicle according to one embodiment of the invention;

FIG. 2 shows a schematic block diagram of an air dam apparatus according to one embodiment of the present invention;

FIG. 3 shows a schematic exploded view of the air dam apparatus shown in FIG. 2;

FIG. 4 shows a schematic exploded view of an air dam apparatus according to one embodiment of the present invention;

FIG. 5 shows a schematic block diagram of an air dam apparatus according to one embodiment of the present invention;

FIG. 6 shows a schematic exploded view of an air dam apparatus according to another embodiment of the present invention;

FIG. 7 shows a partial schematic view of an air dam apparatus according to an embodiment of the present invention;

fig. 8 shows a schematic structural view of a motor body according to an embodiment of the present invention;

fig. 9 is a schematic structural view showing a partial structure of a driving mechanism according to an embodiment of the present invention;

FIG. 10 shows a schematic enlarged view at B of FIG. 9;

FIG. 11 shows a schematic enlarged view at A of FIG. 5;

FIG. 12 is a schematic structural view showing a partial structure of an air dam apparatus according to an embodiment of the present invention;

FIG. 13 is a schematic structural view showing a partial structure of a vehicle according to an embodiment of the present invention;

FIG. 14 is another schematic structural view showing a partial structure of a vehicle according to an embodiment of the present invention;

FIG. 15 illustrates a schematic exploded view of a spoiler according to one embodiment of the invention;

FIG. 16 shows a schematic control flow diagram of a controller of an air dam system according to one embodiment of the invention;

In the figure: 1-floor, 2-air dam system, 3-air dam device, 4-spoiler, 41-first end, 42-second end, 43-first side, 44-second side, 45-connector, 451-panel, 452-fourth through-hole, 453-fifth through-hole, 46-first body, 47-second body, 48-bonding structure, 5-support plate, 51-relief hole, 52-load-bearing portion, 521-arcuate recess, 531-primary pre-assembly, 532-secondary pre-assembly, 533-hook portion, 6-drive mechanism, 61-motor body, 611-rotor, 6111-shaft hole, 612-internal spline, 62-drive shaft, 621-shaft body, 6211-axial rib, 6212-external spline, 622-rib, 623-annular structure, 63-link assembly, 631-first link, 632-second link, 6321-stiffener, 6322-second through-hole, 7-cover plate, 71-first abutment structure, 72-second abutment structure, 73-tab, 74-fixture structure.

Detailed Description

Fig. 1 shows a schematic structural diagram of a vehicle according to an embodiment of the present invention. As shown in fig. 1, the vehicle includes a bumper, a floor 1, and an air dam system 2. The air dam system 2 is mounted at the floor 1. In the embodiment shown in fig. 1, the air dam system 2 includes three air dam devices 3, and the three air dam devices 3 are arranged in order in the lateral direction of the vehicle (i.e., the width direction of the vehicle). The number of the air dam devices 3 is not limited, however, and may be designed as desired, and may be, for example, one, two, four or more. Also, the size of each air dam apparatus 3 may be designed as desired, and not every air dam apparatus 3 need to be kept uniform. But the structure of each air dam means 3 remains the same.

Fig. 2 shows a schematic structural view of the air dam apparatus 3 according to an embodiment of the present invention, in which the spoiler 4 is in a closed state. Fig. 3 shows a schematic exploded view of the air dam device 3 shown in fig. 2. As shown in fig. 2 and 3, the air dam device 3 includes a spoiler 4 and a support plate 5 near or attached to the bottom of the vehicle. In this embodiment, the number of spoilers 4 is one, the spoilers 4 extend in the lateral direction of the vehicle, and the support plate 5 may also extend in the lateral direction of the vehicle. The spoiler 4 has opposite first and second ends 41, 42. The first end 41 of the spoiler 4 is hinged to the support plate 5 of the air dam assembly 3 and the spoiler 4 is arranged to be controllably rotated into a closed condition adjacent or against the support plate 5 and a deployed condition downwardly away from the support plate 5. In other embodiments, the number of the spoilers 4 may be plural, the spoilers 4 are sequentially connected along the transverse direction of the vehicle, and the ends of two adjacent spoilers 4 may overlap together to form a continuous and complete flow disturbing surface with good sealing performance. In the following, a description will be given by taking an example in which each air dam device 3 has a spoiler 4.

According to the scheme of the embodiment of the invention, by installing at least one air dam device 3 at the bottom of the vehicle, each air dam device 3 comprises a spoiler 4 and a supporting plate 5, and the spoiler 4 rotates relative to the supporting plate 5 in a controlled manner, not only is the aerodynamic performance of the vehicle improved, but also the air dam device 3 can be directly arranged on the bottom plate 1 of the vehicle as a whole by installing the supporting plate 5 on the bottom plate 1 of the vehicle, parts can be independently detached and can be independently arranged, and the production and the maintenance are convenient.

Fig. 4 shows a schematic exploded view of an air dam device 3 according to an embodiment of the invention, wherein the spoiler 4 is in a closed state. Fig. 5 shows a schematic structural view of the air dam apparatus 3 according to an embodiment of the present invention, in which the spoiler 4 is in an unfolded state. As shown in fig. 4 and 5, the air dam device 3 may further include a driving mechanism 6. The drive mechanism 6 includes a motor body 61, a drive shaft 62, and a link assembly 63. The driving shaft 62 is connected to the motor body 61, and the motor body 61 drives the driving shaft 62 to rotate. The number of the link assemblies 63 is at least one. One end of each connecting rod assembly 63 is fixedly connected with the driving shaft 62, the other end of each connecting rod assembly 63 is hinged with the spoiler 4, and the connecting rod assemblies 63 move under the driving of the driving shafts 62 and drive the spoiler 4 to rotate relative to the supporting plate 5. In this embodiment, there are two driving shafts 62, two driving shafts 62 are provided at both ends of the motor body 61, respectively, and are synchronously driven by the motor body 61, and the number of the link assemblies 63 is plural. However, the number of the driving shafts 62 may be one, and the number of the link assemblies 63 may be one. Fig. 6 shows a schematic exploded view of the air dam apparatus 3 according to another embodiment of the present invention, and as shown in fig. 6, the number of the driving shafts 62 is one, and the number of the link assemblies 63 is one, so that the number of the driving shafts 62 may be set to one or two as needed, and the number of the link assemblies 63 may be set to one or more as needed. By providing the driving mechanism 6, active driving of the air dam system 2 can be achieved.

Fig. 7 shows a partial schematic structure of the air dam apparatus 3 according to an embodiment of the present invention. Referring to fig. 7, the drive shaft 62 includes a shaft body 621 and a plurality of ribs 622. The shaft body 621 has a plurality of axial ribs 6211 extending in the axial direction of the shaft body 621 and arranged at intervals. A plurality of ribs 622 are disposed between adjacent two axial ribs 6211, the plurality of ribs 622 forming a mesh structure. By providing a plurality of axial ribs 6211 on the shaft body 621 and a plurality of ribs 622 between two adjacent axial ribs 6211, and making the plurality of ribs 622 into a net structure, the weight of the drive shaft 62 can be reduced while improving the bending strength of the drive shaft 62. As shown in fig. 7, the adjacent two axial ribs 6211 of the shaft body 621 and the ribs 622 between the adjacent two axial ribs 6211 form a plurality of triangular patterns. And, three intersection points in the triangular pattern are all at the axial ribs 6211. The triangular pattern further enhances the torsional strength of the drive shaft 62.

Fig. 8 shows a schematic structural view of a motor body 61 according to an embodiment of the present invention. As shown in fig. 8, the motor body 61 includes a rotor 611, and the rotor 611 is elastically coupled to the shaft end of the driving shaft 62. In one embodiment, the rotor 611 defines an axial bore 6111, the axial bore 6111 having an internal spline 612 and the first axial end of the shaft body 621 having an external spline 6212. The internal spline 612 and the external spline 6212 are cooperatively coupled together to achieve a resilient coupling of the rotor 611 to the drive shaft 62. The drive shaft 62 is simply and reliably coupled to the motor body 61 by a quick-disconnect spline feature.

Fig. 9 shows a schematic structural view of a part of the structure of the drive mechanism 6 according to one embodiment of the present invention. Fig. 10 shows a schematic enlarged view at B shown in fig. 9. As shown in fig. 9 and 10, the link assembly 63 includes a first link 631 and a second link 632. The first link 631 is fixedly provided on the drive shaft 62, and may be integrally formed with the drive shaft 62, for example. The second link 632 is arranged to hinge with the first link 631 and the spoiler 4 to rotate the spoiler relative to the support base when the first link 631 is controllably moved. The connecting rod assembly 63 can rotate the spoiler 4 only through the first connecting rod 631 and the second connecting rod 632, the structure is simple, and the first connecting rod 631 and the driving shaft 62 can be integrally formed, so that the number of parts is further reduced. The surface of the second link 632 has a plurality of reinforcing ribs 6321, and the plurality of reinforcing ribs 6321 together form a net structure. In one embodiment, the plurality of ribs 6321 form a plurality of rib sets, each rib set comprising three ribs 6321 forming a triangle. The reinforcing rib group is triangular, so that the strength of the second connecting rod 632 can be greatly enhanced, and the strength requirement and the power transmission requirement for driving the spoiler 4 to rotate are met.

The first link 631 has a first through hole (hidden in fig. 10) and the second link 632 has a second through hole 6322 and a third through hole (hidden in fig. 10), and the first through hole of the first link 631 and the second through hole 6322 of the second link 632 are aligned such that the first link 631 and the second link 632 are hinged together. The third through hole of the second link 632 is connected to the spoiler 4.

Referring to fig. 5 and 10, the spoiler 4 comprises a first side 43 and a second side 44 arranged facing away from the first side 43, the spoiler 4 being arranged extending in a transverse direction of the vehicle and being arranged such that the first side 43 of the spoiler 4 is facing the wind when in the deployed state. The second side 44 of the spoiler 4 has a connecting member 45, which connecting member 45 extends towards the linkage assembly 63. The connector 45 includes two plates 451 disposed opposite and spaced apart, each plate 451 being provided with a fourth through hole 452, and the second link 632 being hinged between the two plates 451. The fourth through hole 452 in the connector 45 is aligned with the third through hole of the second link 632 such that the second link 632 is hinged with the spoiler 4. The connector 45 also has a fifth through hole 453, and the fifth through hole 453 of the connector 45 is aligned with the hole in the support plate 5 to hinge the support plate 5 together.

Referring to fig. 7, the support plate 5 has a plurality of relief holes 51, and the number of the relief holes 51 is consistent with the number of the link assemblies 63. The function of the relief hole 51 is to allow the link assembly 63 to penetrate the support plate 5 and to relief the rotation of the link assembly 63.

Fig. 11 shows a schematic enlarged view at a shown in fig. 5. As shown in fig. 5, 7 and 11, the support plate 5 has a carrying portion 52 for carrying the drive shaft 62 thereon, and the carrying portion 52 has an arc-shaped recess 521. The drive shaft 62 has a plurality of raised annular formations 623, the annular formations 623 being disposed at the arcuate recesses 521. The annular structure 623 extends outwardly from the outer periphery of the drive shaft 62, and the thickness of the annular structure 623 is slightly less than the width of the arcuate recess 521, such that the arcuate recess 521 substantially retains the annular structure 623, thereby preventing displacement or deflection of the drive shaft 62 during rotation, and providing a stop.

Fig. 12 is a schematic structural view showing a partial structure of the air dam apparatus 3 according to one embodiment of the present invention. As shown in fig. 12, the air dam device 3 further includes a cover plate 7, an inner wall surface of the cover plate 7 near the first link 631 has a first abutting structure 71 and a second abutting structure 72, and the link assembly 63 rotates between the first abutting structure 71 and the second abutting structure 72. The cover plate 7 of the driving mechanism 6 is covered on the supporting plate 5, and the cover plate 7 and the supporting plate 5 together define a space for accommodating the motor body 61 and the driving shaft 62. The motor body 61 is arranged to stop operation when the first abutment structure 71 and the link assembly 63 abut, and the motor body 61 is further arranged to stop operation when the second abutment structure 72 and the link assembly 63 abut. The spoiler 4 is arranged to rotate to a closed condition close to or abutting against the support plate 5 when the first abutment structure 71 abuts against the link assembly 63 and to rotate downwardly to a deployed condition away from the support plate 5 when the second abutment structure 72 abuts against the link assembly 63. Therefore, the driving mechanism 6 can mechanically stop running, complex control is not needed, and the aim of simplifying the running stopping mode of the motor body 61 on the premise of accurately controlling the running stopping position of the motor body 61 is fulfilled.

The first abutting structure 71 and the second abutting structure 72 each include at least one protruding strip structure 73 protruding from the inner wall surface of the cover plate 7 in a direction approaching the link assembly 63. The shape of the protruding strip structure 73 is not limited, and any structure may be used that can block the link assembly 63 after rotation in place. In the embodiment shown in fig. 12, the first abutment structure 71 and the second abutment structure 72 each comprise two ridge structures 73. Of course, the number of the convex structures 73 is not limited, and may be set as needed.

Referring to fig. 1 to 7, the support plate 5 also has a plurality of preassemblies provided at the edge of the support plate 5 near the first end 41 of the spoiler 4. Fig. 13 shows a schematic structural view of a part of the structure of a vehicle according to an embodiment of the present invention. As shown in fig. 13, each preassembly is configured to be rotatably connected to the floor 1 of the vehicle to suspend the support plate 5 to the floor 1 and thus the air dam apparatus 3 to the floor 1 by a plurality of preassemblies. By "suspended" is meant here that one side of the support plate 5 is connected to the base plate 1, while the other side opposite to this side is not connected to the base plate 1. The base plate 1 has a plurality of rotation shafts. Each preassembly piece is provided with a clamping hook portion 533, and the clamping hook portion 533 is matched with the rotating shaft of the corresponding preassembly piece so as to clamp the clamping hook at the rotating shaft and rotate around the rotating shaft.

A rotation shaft mounting portion for mounting a rotation shaft is provided at the base plate 1. The plurality of preassemblies includes at least one main preassembly 531, and a length of the hooking portion 533 of the main preassembly 531 in the rotation axis direction is maintained to be identical to a length of the rotation axis so that a gap between the hooking portion 533 of the main preassembly 531 and the rotation axis mounting portion in the rotation axis direction is not clearance or the clearance length is less than a first threshold when the hooking portion 533 of the main preassembly 531 is hooked at the rotation axis. The plurality of pre-assemblies further includes at least one auxiliary pre-assembly 532, a length of the hooking portion 533 of the auxiliary pre-assembly 532 in the rotation axis direction being smaller than a length of the rotation axis so that a gap length between the hooking portion 533 of the auxiliary pre-assembly 532 and the rotation axis mounting portion in the rotation axis direction is greater than or equal to a second threshold value, which is greater than the first threshold value, when the hooking portion 533 of the auxiliary pre-assembly 532 is hooked at the rotation axis. In the illustrated embodiment, the number of primary preassemblies 531 is less than the number of secondary preassemblies 532. When the air dam apparatus 3 is integrally assembled to the base plate 1, one side of the air dam apparatus 3 is first pre-hung at the base plate 1 by the pre-assembly member, and first, the main pre-assembly member 531 is hung with the base plate 1, that is, the semi-circular attaching surface of the hook portion 533 of the main pre-assembly member 531 is attached to the rotation axis at the base plate 1, at this time, the hook portions 533 of the other auxiliary pre-assembly members 532 are in a free state, and then, the other auxiliary pre-assembly members 532 are hung with the base plate 1, that is, the semi-circular attaching surface of the hook portion 533 of the other auxiliary pre-assembly members 532 is attached to the other rotation axis at the base plate 1. Therefore, one side of the air dam device 3 is pre-hung at the bottom plate 1, so that the problem that one person cannot operate when an operator installs the large-size air dam device 3 from bottom to top can be solved, and meanwhile, the pre-assembly problem under a limited space is solved.

Referring to fig. 4 and 13, the side of the cover plate 7 remote from the preassembly is also provided with a plurality of preassemblies 74. Each of the pre-fixtures 74 is configured to be cooperatively fixed with the base plate 1 after a plurality of pre-assemblies are pre-assembled to the base plate 1 to pre-fix the support plate at a position to be assembled. Each pre-fixed element 74 is an integral elastic snap. When the air dam apparatus 3 is integrally assembled to the base plate 1, after one side of the air dam apparatus 3 is preassembled to the base plate 1 by the preassembly, the other side of the air dam apparatus 3 is preassembled at the base plate 1 by the preassembly 74, thereby achieving the objective of preassembling the entire air dam apparatus 3 at the base plate 1. Thus, the purpose of installing the large-sized air dam apparatus 3 in the limited work piece from the bottom to the top by one operator can be completely achieved.

Fig. 14 shows another schematic structural view of a part structure of a vehicle according to an embodiment of the present invention. In the embodiment shown in fig. 1, 13 and 14, the air dam system 2 comprises three air dam apparatuses 3, namely a left air dam apparatus 3, a middle air dam apparatus 3 and a right air dam apparatus 3, which are sequentially connected, wherein the left air dam apparatus 3, the middle air dam apparatus 3 and the right air dam apparatus 3 are respectively provided with a spoiler 4. Each spoiler 4 has a lap portion overlapping with the adjacent other spoiler 4, the lap portion being located at an end portion of the spoiler 4. The overlapping parts of two adjacent spoilers 4 are mutually matched in structure, so that the windward surfaces of the spoilers 4 after overlapping form continuous smooth surfaces at the overlapping parts. The spoiler 4 realizes an integrated front spoiler design by overlapping and matching.

Fig. 15 shows a schematic exploded view of a spoiler 4 according to an embodiment of the invention. As shown in fig. 15, each spoiler 4 includes a first body 46 and a second body 47, the second body 47 is attached to the first body 46, and a surface of the second body 47 away from an attaching surface attached to the first body 46 is a windward surface. The first body 46 and the second body 47 are plastic members, and the hardness of the second body 47 is smaller than that of the first body 46. The second body 47 has an area larger than that of the first body 46, and the second body 47 is disposed to cover the entire first body 46. Each spoiler 4 further includes an adhesive 48, the adhesive 48 being disposed between the first body 46 and the second body 47 for adhering the first body 46 and the second body 47. The structural design of the spoiler 4 achieves the maximum spoiler area, and simultaneously promotes the downward pressure of the air dam system 2, so that the trafficability of the vehicle is ensured. The Z downward boundary of the vehicle passing property is hard rubber, and the designed soft rubber is higher than the hard rubber in Z direction length, for example, can be 40mm higher, so that the maximum turbulent flow area is ensured, and the turbulent flow plate 4 is protected. The outermost second body 47 is soft to resist foreign matter such as stone impact, and protects the air dam device 3.

According to the scheme provided by the embodiment of the invention, the opening and closing of the active air dam and the central rigidity requirement of 200N can be realized within 4 seconds under the condition of the load of the air pressure center 67N.

In one embodiment, the air dam system 2 further comprises a controller, which is connected to each air dam device 3. Fig. 16 shows a schematic control flow diagram of a controller of the air dam system 2 according to an embodiment of the present invention. As shown in fig. 16, the controller is configured to determine the on-off state of the spoiler 4 of the at least one air dam device 3 according to the vehicle condition. In a specific embodiment, the controller is configured to turn on the welcome mode when the vehicle is in a stationary and unlocked state, so that the air dam device 3 is turned on and off according to a preset rule. In this embodiment, the number of the air dam apparatuses 3 is plural, and all of the air dam apparatuses 3 in the plural air dam apparatuses 3 are in the closed state as the first position state, which is denoted by P0. Only the outermost two air dam apparatuses 3 among the plurality of air dam apparatuses 3 are in the open state as a second position state, which is denoted by P1. All of the plurality of air dam apparatuses 3 are in the open state as a third position state, which is denoted by P2. The preset rule is such that the plurality of air dam apparatuses 3 periodically sequentially open the first position state, the second position state, and the third position state, and sequentially close the third position state, the second position state, and the first position state. The welcome mode can provide a very good vehicle-computer interaction experience for a user. In one embodiment, the controller is configured to determine whether the vehicle is unlocked after the vehicle enters the welcome mode, if the vehicle is unlocked, the air dam device 3 is opened and closed according to a preset rule, otherwise, the controller returns to the step of determining whether the vehicle is stationary.

In one embodiment, the controller is configured to determine and control the on-off state of the plurality of air dam devices 3 based on the mode in which the air dam system 2 is located, the active grille-up state of the vehicle, and/or the speed of the vehicle when the vehicle is in a driving condition. The on-off state of any one or more of the air dam devices 3 may be determined to be controlled according to which one or more of the mode in which the air dam system 2 is located, the active grille-up state of the vehicle, and the speed of the vehicle, according to the use requirement.

In one embodiment, the controller is configured to control all of the plurality of air dam apparatuses 3 to be turned on when the air dam system 2 is in the automatic mode and the active grille is in the on state when the vehicle is in the running condition, i.e., the air dam system 2 is in the P2 state. The controller is configured to control only the outermost two air dam devices 3 of the plurality of air dam devices 3 to be turned on, i.e., the air dam system 2 is in the P1 state, when the air dam system 2 is in the automatic mode, the active grille is in the closed state, and the vehicle speed is greater than a preset speed when the vehicle is in a driving condition. And the controller is configured to control all of the plurality of air dam devices 3 to be closed when the air dam system 2 is in the automatic mode, the active grille is in the closed state, and the vehicle speed is less than or equal to a preset speed, i.e., when the air dam system 2 is in the P0 state, when the vehicle is in the running condition. The preset speed may be, for example, 100km/h, 110km/h or 120km/h. Therefore, intelligent control of the front air dam of the automobile can be realized, so that the air dike root is opened and selected according to different running conditions of the automobile, the system control stability of the automobile is improved, and the oil consumption and the electricity consumption of the whole automobile are reduced.

In particular, the invention also provides a vehicle comprising the aforementioned air dam system 2.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations or modifications of the general principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (15)

1. An air dam system for a vehicle, wherein the air dam system comprises at least one air dam device mounted to a bottom of the vehicle, the air dam device comprising at least one spoiler, each spoiler having opposite first and second ends, and a support plate adjacent to or conforming to the bottom of the vehicle,

The first end of each spoiler is hinged to the support plate of the corresponding air dam device, and each spoiler is arranged to be controllably rotated to a closed state adjacent to or attached to the support plate and a deployed state downwardly away from the support plate.

2. The air dam system of claim 1, wherein each air dam device further comprises a drive mechanism comprising:

a motor body;

the driving shaft is connected with the motor body, and the motor body drives the driving shaft to rotate;

And one end of the connecting rod assembly is fixedly connected with the driving shaft, the other end of the connecting rod assembly is hinged with the spoiler, and the connecting rod assembly moves under the driving of the driving shaft and drives the spoiler to rotate relative to the supporting plate.

3. The air dam system of claim 2, wherein the linkage assembly comprises:

The first connecting rod is fixedly arranged on the driving shaft;

The second connecting rod is hinged with the first connecting rod and the spoiler, so that the spoiler is driven to rotate relative to the supporting seat when the first connecting rod rotates in a controlled manner.

4. A dam system according to claim 3, wherein said spoiler comprises a first side and a second side disposed away from said first side, said spoiler extending in a transverse direction of the vehicle and being arranged such that said first side of said spoiler is a windward side when in said deployed state;

the spoiler has a connecting member extending from the second side surface toward the connecting rod assembly, the connecting member being respectively hinged with the support plate and the second connecting rod.

5. The air dam system according to claim 1, wherein the air dam system comprises a plurality of air dam devices, the plurality of air dam devices sharing a single driving device for driving the spoilers of the plurality of air dam devices to rotate.

6. The air dam system according to any of claims 1-5, wherein a side of the support plate proximate the first end of the spoiler is provided with a plurality of preassemblies spaced apart, each of the preassemblies being configured to be rotatably connected to a bottom of the vehicle to suspend the air dam device at the bottom of the vehicle by the plurality of preassemblies.

7. The air dam system of claim 6, further comprising a cover plate covering a side of the support plate remote from the spoiler, a side of the cover plate remote from the first end of the spoiler being provided with a plurality of pre-fixtures spaced apart, each of the pre-fixtures configured to matingly secure with the bottom of the vehicle after the plurality of pre-fixtures are pre-assembled thereto to pre-secure the support plate thereto.

8. A dam system according to any of claims 1-4 and 7, wherein the number of said dam means is two, two of said dam means being symmetrically arranged on both left and right sides of the bottom of said vehicle.

9. The air dam system according to any of claims 1-4 and 7, wherein the number of air dam devices is at least three, at least three of the air dam devices being arranged in a lateral direction of the vehicle.

10. The air dam system according to any of claims 1-5 and 7, further comprising a controller coupled to the at least one air dam device, the controller configured to determine an on-off state of the spoiler controlling the at least one air dam device based on vehicle conditions.

11. The air dam system of claim 10, wherein the controller is configured to turn on a welcome mode when the vehicle is in a stationary and unlocked state to turn on and off the at least one air dam device according to a preset rule.

12. The air dam system according to claim 11, wherein when the number of the air dam apparatuses is plural, all of the plurality of air dam apparatuses are in the closed state as a first position state, only the outermost two of the plurality of air dam apparatuses are in the open state as a second position state, and all of the plurality of air dam apparatuses are in the open state as a third position state;

The preset rule is that the plurality of air dam devices periodically and sequentially open the first position state, the second position state and the third position state, and then sequentially close the third position state, the second position state and the first position state.

13. The air dam system of claim 10, wherein the controller is configured to determine to control the on-off state of a plurality of the air dam devices based on a mode in which the air dam system is located, an active grille-up state of the vehicle, and/or a speed of the vehicle when the vehicle is in a driving condition.

14. The air dam system of claim 13, wherein the controller is configured to control all of the plurality of air dam devices to be turned on when the air dam system is in an automatic mode and the active grille is in an on state when the vehicle is in a driving condition;

The controller is configured to control only the outermost two air dam devices of the plurality of air dam devices to be opened when the air dam system is in an automatic mode, the active grille is in a closed state and the vehicle speed is greater than a preset speed when the vehicle is in a running condition;

The controller is configured to control all of the plurality of air dam devices to be closed when the air dam system is in an automatic mode, the active grille is in a closed state, and the vehicle speed is less than or equal to a preset speed when the vehicle is in a driving condition.

15. A vehicle comprising an air dam system as claimed in any one of claims 1 to 14.