An active wheel hub cover and a vehicle using the same

Abstract

The application provides a kind of active wheel hub decorative cover and vehicle using the decorative cover.The decorative cover includes decorative panel, and at least one vent is provided on the decorative panel;The decorative cover rear frame includes a circular frame and at least one spoke extending radially along the circular frame, the circular frame is fixedly connected with the wheel hub decorative cover, the spoke penetrates the vent of the wheel hub decorative cover, and a guide rail groove is provided on the spoke;The adjusting mechanism includes a driving swing rod, a connecting rod, a rotating shaft and a motor, the two ends of the driving swing rod are rotatably connected to the rotating shaft and the connecting rod respectively, and the rotating shaft is connected to the motor.The center of the wheel hub decorative cover, the center of the decorative cover rear frame and the rotating shaft of the adjusting mechanism are arranged in overlapping manner, the motor drives the rotating shaft of the adjusting mechanism to drive the driving swing rod and the connecting rod to move, the movement of the connecting rod drives the slider on the decorative cover baffle to slide in the guide rail groove of the spoke on the decorative cover rear frame to the vent to cover the vent, and finally the wheel hub decorative cover with active adjustment of wheel hub opening rate is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to a vehicle wheel hub cover, in particular to an active wheel hub cover capable of active adjustment and a vehicle using the same. BACKGROUND

[0002] The wheel of the automobile is mainly composed of two parts of the spoke and the rim, wherein the opening size of the spoke will affect the appearance modeling of the wheel and the strength of the wheel itself; in addition, the spoke will stir the air flowing through the wheel when the vehicle is running, thereby generating resistance to the rotation of the wheel, if the opening of the spoke is too large, it is easy to cause the wheel resistance to be too large, which is easy to cause the electric vehicle range to be further reduced under the trend of electrification today; if the opening is too small, it will cause insufficient air flow and affect the cooling effect of the brake disc, and will increase the weight of the wheel to affect the endurance and handling performance.

[0003] In the prior art, if the wheel is installed with a cover, the cover is mostly of a closed structure and fixed, and the gap between the spokes is always closed, which can reduce the air flow through the spokes, so that the air flow in the front of the vehicle can flow more to the rear of the vehicle, reducing the air flow in the wheel cavity, which can achieve the effect of reducing the aerodynamic resistance of the wheel cavity. Although the closed cover helps to reduce the wind resistance, it cannot take into account the heat dissipation demand of the brake disc during braking. Some automobile manufacturers design the spoke opening to be larger, and fill the wheel cover between the spokes, which can ensure the endurance while avoiding too high unsprung mass. Therefore, how to endow the wheel hub with the performance of low wind resistance under the condition of ensuring the wheel hub heat dissipation exists a great design optimization space. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide an active wheel hub cover for solving the problem of the prior art that the wheel hub ensures the wheel hub heat dissipation under the condition of low wind resistance performance.

[0005] To achieve the above-mentioned purposes and other related purposes, the present application provides an active wheel hub cover, comprising:

[0006] A wheel hub cover 1, the wheel hub cover 1 comprises a decorative panel 12, and at least one vent 11 is arranged on the decorative panel 12;

[0007] A decorative cover rear frame 2, the decorative cover rear frame 2 comprises a circular frame 22 and at least one spoke 23 extending radially along the circular frame, the circular frame 22 is fixedly connected with the wheel hub cover 1, the spoke 23 penetrates the vent 11 of the wheel hub cover 1, and a guide rail groove 21 is arranged on the spoke 23;

[0008] An adjusting mechanism 4 is connected to the rear frame 2 of the decorative cover and is arranged between the hub decorative cover 1 and the rear frame 2 of the decorative cover, the adjusting mechanism 4 comprises at least one active swing rod 41, at least one connecting rod 42, a rotating shaft 43 and a motor 44, both ends of the active swing rod 41 are rotatably connected to the rotating shaft 43 and the connecting rod 42 respectively, and the rotating shaft 43 is connected to the motor 44;

[0009] At least one decorative cover baffle 3 is arranged between the hub decorative cover 1 and the rear frame 2 of the decorative cover, the decorative cover baffle 3 comprises a baffle 33, a sliding block 31 and a fixed column 32, the sliding block 31 and the fixed column 32 are arranged on the inner side of the baffle 33, the connecting rod 42 of the adjusting mechanism 4 is rotatably connected to the fixed column 32 of the baffle 33, and the sliding block 31 and the guide groove 21 of the rear frame 2 of the decorative cover are matched so that the decorative cover baffle 3 can slide along the spoke 23.

[0010] Wherein, the center of the hub decorative cover 1, the center of the rear frame 2 of the decorative cover and the rotating shaft 43 of the adjusting mechanism 4 are arranged in an overlapping manner, the motor 44 drives the rotating shaft 43 of the adjusting mechanism 4 to drive the active swing rod 41 and the connecting rod 42 to move, the movement of the connecting rod 42 drives the sliding block 31 on the decorative cover baffle 3 to slide in the guide groove 21 of the spoke 23 on the rear frame 2 of the decorative cover, so that the decorative cover baffle 3 can slide along the radial direction of the spoke 23 to the air vent to cover the air vent.

[0011] In an embodiment of the present application, the hub decorative cover 1 comprises a plurality of air vents 11, the air vents 11 are uniformly distributed between the decorative panels 12, and the air vents 11 have the same size; one spoke 23 and one decorative cover baffle 3 are arranged corresponding to each air vent 11, and one active swing rod 41 and one connecting rod 42 are arranged corresponding to each decorative cover baffle 3.

[0012] In an embodiment of the present application, a through hole is arranged in the center of the rear frame 2 of the decorative cover and a bearing is arranged, and the rotating shaft 43 of the adjusting mechanism 4 is arranged in the bearing; the rotating shaft 43 of the adjusting mechanism 4 is rigidly connected to the motor 44 and the rear frame 2 of the decorative cover respectively.

[0013] In an embodiment of the present application, the guide groove 21 comprises an inner end 211 and an outer end 212, and the guide groove 21 is internally provided with a guide rail 26 extending from the inner end 211 to the outer end 212, the inner end 211 is close to the center of the rear frame 2 of the decorative cover, and the outer end 212 is close to the circular frame 22; the guide rail 26 is provided with a first preset height 24 close to the inner end 211, and the guide rail 26 is provided with a second preset height 25 close to the outer end 212, and the first preset height 24 is smaller than the second preset height 25.

[0014] In an embodiment of the present application, the first preset height 24 of the guide rail 26 in the guide groove 21 on each spoke 23 is the same, the second preset height 25 of the guide rail 26 in the guide groove 21 on each spoke 23 is different, and the height of the sliding block 31 of each decorative cover baffle 3 is also different, so that when the sliding block 31 of the corresponding decorative cover baffle 3 slides along the guide rail in the guide groove 21 to the outer side position of the decorative cover baffle 3, all the decorative cover baffles 3 are located in the same plane; and when the sliding block 31 of the corresponding decorative cover baffle 3 slides along the guide rail in the guide groove 21 to the inner side position of the decorative cover baffle 3, all the decorative cover baffles 3 are stacked and arranged in a disc shape at the center position of the hub decorative cover 1 and the rear frame 2 of the decorative cover, and the parts close to the center position of all the decorative cover baffles 3 are arranged in different heights.

[0015] In an embodiment of the present application, the driving swing rod 41 and the connecting rod 42 on the adjusting mechanism 4 are hingedly connected, the swing rod first end 411 of the driving swing rod 41 is provided with a spline sleeve, and the rotating shaft 43 is a spline shaft, and the rotating shaft 43 is connected with the spline sleeve of the swing rod first end 411.

[0016] In an embodiment of the present application, the fixed column 32 on the decorative cover baffle 3 is located on one side of the baffle 33 close to the center position, and the connecting rod first end 421 of the connecting rod 42 on the adjusting mechanism 4 is hingedly connected with the fixed column 32.

[0017] In an embodiment of the present application, when the sliding block 31 on each decorative cover baffle 3 slides to the outer end 212 of the guide rail 26, the decorative cover baffle 3 reaches the outer side position of completely shielding the corresponding air vent 11; when the sliding block 31 slides from the outer end 212 of the guide rail 26 to the inner end 211, the baffle 33 connected with the sliding block 31 also moves, and when the sliding block 31 reaches the inner end 211 position, the decorative cover baffle 3 reaches the inner side position of completely not shielding the air vent 11, and the opening rate of the air vent 11 is from 0% to 100%.

[0018] In an embodiment of the present application, the active wheel hub cover further comprises a detection control unit 5, which comprises a vehicle controller 51, a temperature sensor 52, a vehicle speed sensor 53 and a brake state sensor 54, the vehicle controller 51 can signal interact with the temperature sensor 52, the vehicle speed sensor 53 and the brake state sensor 54, the temperature sensor 52 is arranged on the wheel hub, the vehicle speed sensor 53 is arranged in the vehicle suspension, and the brake state sensor 54 is arranged in the vehicle brake device.

[0019] In an embodiment of the present application, the temperature sensor 52 and the vehicle speed sensor 53 of the detection control unit 5 obtain the wheel hub temperature and the vehicle speed, and send signals to the vehicle controller 51, and the vehicle controller 51 obtains the state signal of the brake state sensor 54 in real time; the vehicle controller 51 calculates the opening rate of the air vent 11 on the wheel hub cover 1 according to the received signal, and sends an adjustment signal to the motor 44; the motor 44 drives the rotating shaft 43 to rotate by a preset angle according to the adjustment signal, and then drives the active swing rod 41 matched with the rotating shaft 43 to drive the connecting rod 42 to move; the movement of the connecting rod 42 drives the sliding block 31 of the cover baffle 3 to slide on the guide rail in the guide groove 21, so as to drive the cover baffle 3 to move between the inner side position and the outer side position, so as to adjust the opening size of the air vent 11 of the wheel hub cover 1.

[0020] The present application also provides a vehicle using the active wheel hub cover.

[0021] As described above, the active wheel hub cover and the vehicle using the active wheel hub cover have the following beneficial effects:

[0022] By arranging the cover baffle capable of moving relative to the fixed spoke, the wheel hub structure can be switched between the open state and the closed state. In the open state at low speed, the heat dissipation of the brake is enhanced; in the closed state at high speed, the wind resistance of the automobile is reduced. The cover baffle rotates relative to the fixed spoke as a whole, and the opening is reliable, the noise is low, and the dynamic balance is good; in the closed state, the cover baffle can completely cover the gap in the fixed spoke, and the requirements of reducing wind resistance during vehicle driving and heat dissipation of the brake disc during vehicle braking can be met. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a perspective view of the active wheel hub cover of the present application.

[0024] Figure 2Fig. 1 is a schematic diagram of the active wheel hub cover of the present application, wherein (a) is a front view and (b) is a rear view.

[0025] Figure 3 Fig. 2 is a schematic diagram of the active wheel hub cover of the present application, wherein (a) is a front view and (b) is a rear view.

[0026] Figure 4 Fig. 3 is a schematic diagram of the active wheel hub cover of the present application, wherein (a) is a front view and (b) is a rear view.

[0027] Figure 5 Fig. 4 is a schematic diagram of the adjustment mechanism and the cover baffle of the active wheel hub cover of the present application.

[0028] Figure 6 Fig. 5 is a schematic diagram of the cover baffle of the present application, wherein (a) is a view of the inner side of the cover baffle and (b) is a view of the active swing lever and the connecting rod cooperating with the cover baffle.

[0029] Figure 7 Fig. 6 is a schematic diagram of the rear frame of the cover of the present application, wherein (a) is a perspective view and (b) is a sectional view of three different guide groove structures of the rear frame of the cover.

[0030] Figure 8 Fig. 7 is a schematic diagram of the detection control unit cooperating with the adjustment mechanism and the rear frame of the cover of the present application.

[0031] Figure 9 Fig. 8 is a schematic diagram of the control logic of the active wheel hub cover of the present application.

[0032] Element Number Description

[0033] Wheel hub cover 1, air vent 11;

[0034] Rear frame of cover 2, guide groove 21, first end guide groove 211, second end guide groove 212, circular frame 22, center shaft 221, spoke 23, first preset depth 24, second preset depth 25, guide rail 26;

[0035] Cover baffle 3, sliding block 31, fixed column 32, baffle 33;

[0036] Adjustment mechanism 4, active swing lever 41, first end of swing lever 411, second end of swing lever 412, connecting rod 42, first end of connecting rod 421, second end of connecting rod 422, rotating shaft 43, motor 44;

[0037] Detection control unit 5, vehicle controller 51, temperature sensor 52, vehicle speed sensor 53, brake plate state sensor 54. DETAILED DESCRIPTION

[0038] Following, the embodiments of the present application are illustrated by specific examples, and other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of the specification. The present application can also be implemented or applied by other different embodiments, and various modifications or changes can be made to the details in the specification based on different views and applications without departing from the spirit of the present application. It should be noted that the following examples and features in the examples can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present application are for describing specific embodiments, not for limiting the protection scope of the present application. The test methods in the following examples are not specified, and are generally carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0039] Please refer to Figures 1 to 9 It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not have technical significance to limit the conditions under which the present application can be implemented. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the specification are only for the convenience of clear description, not for limiting the scope of the present application, and the change or adjustment of the relative relationship without substantial change of technical content is also considered as the scope of the present application.

[0040] Please refer to Figure 1 The present application provides a structure of a hub cap, comprising:

[0041] The hub cap 1, the cap rear frame 2 and the adjusting mechanism 4.

[0042] Among them, the hub cap 1 is provided with a decorative panel 12, and the decorative panel 12 is provided with a plurality of air vents 11. The air vents 11 are uniformly distributed on the decorative panel 12, and the shapes and sizes of each air vent 11 are the same.

[0043] Each air vent 11 corresponds to a spoke 23 and a cap baffle 3. When the vehicle is running at low speed, all the air vents 11 are in an open state, which can enhance the heat dissipation of the brake; when the vehicle is running at high speed, all the air vents 11 are in a closed state, which can reduce the wind resistance of the automobile and achieve energy saving effect.

[0044] The rear frame 2 of the decorative cover comprises a circular frame 22 and a plurality of spokes 23 extending radially from the circular frame 22, one end of each spoke 23 is connected to the central shaft 221 of the circular frame 22, and the other end is fixed on the circular frame 22. Each spoke 23 corresponds to a ventilation hole 11 passing through the hub decorative cover 1.

[0045] The circular frame 22 is fixedly connected with the hub decorative cover 1, and the connection mode can be buckle connection or other suitable mode.

[0046] The adjusting mechanism 4 is arranged between the hub decorative cover 1 and the rear frame 2 of the decorative cover and is connected with the rear frame 2 of the decorative cover.

[0047] The hub decorative cover is further provided with a plurality of decorative cover baffles 3 arranged between the hub decorative cover 1 and the rear frame 2 of the decorative cover.

[0048] In combination Figure 5 And Figure 6 As can be seen, the adjusting mechanism 4 comprises at least one driving swing rod 41, at least one connecting rod 42, a rotating shaft 43 and a motor 44, and each decorative cover baffle 3 is provided with one driving swing rod 41 and one connecting rod 42.

[0049] The swing rod first end 411 of the driving swing rod 41 is in spline engagement with the rotating shaft 43, the swing rod first end 411 is provided with a spline sleeve, and the rotating shaft 43 is a spline shaft.

[0050] The swing rod second end 412 and the second end of the connecting rod 42 can be hingedly connected or other suitable movable connection mode.

[0051] Each decorative cover baffle 3 comprises a baffle 33, a sliding block 31 and a fixed column 32, and the sliding block 31 and the fixed column 32 are arranged on the inner side of the baffle 33. The fixed column 32 is located on one side of the baffle 33 close to the center of the rear frame 2 of the decorative cover, and the sliding block 31 is located on one side of the baffle 33 close to the circular frame 22.

[0052] The connecting rod 42 on the adjusting mechanism 4 is rotatably connected to the fixed column 32 of the baffle 33, the sliding block 31 cooperates with the guide rail groove 21 of the rear frame 2 of the decorative cover and the guide rail 26 therein, so that the decorative cover baffle 3 can slide radially along the spoke 23.

[0053] The connecting rod 42 and the fixed column 32 can also be connected in other suitable modes.

[0054] The center of the hub decorative cover 1, the center of the rear frame 2 of the decorative cover and the rotating shaft 43 of the adjusting mechanism 4 are arranged in overlapping manner, and the hub decorative cover 1 and the rear frame 2 of the decorative cover are fixedly connected through the circular frame 22.

[0055] A through hole is formed in the center of the rear frame 2 of the decorative cover, and a bearing is arranged in the through hole. The rotating shaft 43 of the adjusting mechanism 4 is connected to the rear frame 2 of the decorative cover through the bearing.

[0056] The adjusting mechanism 4 is arranged between the hub decorative cover 1 and the rear frame 2 of the decorative cover, and the rotating shaft 43 and the motor rotating shaft of the motor 44 are rigidly connected through welding or a flat key. The rotating shaft 43 and the rear frame 2 of the decorative cover can be rigidly connected through a bearing arranged in the central shaft 221 of the circular frame 22.

[0057] The motor 44 drives the rotating shaft 43 of the adjusting mechanism 4 to drive the driving swing rod 41 and the connecting rod 42 to move, and then the movement of the connecting rod 42 drives the sliding block 31 of the decorative cover baffle 3 to slide in the guide groove 21 of the spoke 23 of the rear frame 2 of the decorative cover. Thus, the decorative cover baffle 3 can slide along the radial direction of the spoke 23, thereby moving from the inner position of not blocking the air vent 11 to the outer position of completely covering the air vent 11.

[0058] From Figure 7 It can be seen that the guide groove 21 is arranged on each spoke 23 of the rear frame 2 of the decorative cover. The guide groove 21 includes an inner end 211 and an outer end 212. The inner end 211 is close to the center of the rear frame 2 of the decorative cover, and the outer end 212 is close to the circular frame 22. The guide rail 26 has a first preset height 24 relative to the bottom surface of the guide groove 21 near the inner end 211, and has a second preset height 25 relative to the bottom surface of the guide groove 21 near the outer end 212. The first preset height is smaller than the second preset height.

[0059] The guide rail 26 is arranged in the guide groove 21 and extends from the inner end 211 to the outer end 212. The first preset height 24 of the guide rail 26 is the same, and the second preset height 25 is different. The first preset height 24 can be zero, that is, the guide rail 26 is flush with the bottom surface of the guide groove 21 at the inner end 211. The second preset height 25 decreases in the clockwise direction of the hub, and correspondingly, the height of the sliding block 31 of the corresponding decorative cover baffle 3 also increases in the clockwise direction of the hub.

[0060] The sum of the second preset height 25 of the guide rail 26 on the outer end 212 of each spoke 23 and the height of the sliding block 31 of the corresponding decorative cover baffle 3 is equal.

[0061] In this way, when the sliding block 31 slides along the guide rail in the guide groove 21 to the position of the outer end 212 of the decorative cover baffle 3, all the decorative cover baffles 3 are arranged in the same plane, that is, in the same plane.

[0062] When the slider 31 of the corresponding decorative cover baffle 3 slides along the guide rail 26 in the guide rail groove 21 to the inner side position of the decorative cover baffle 3, all the decorative cover baffles 3 are retracted and partially stacked and arranged in a disc shape at the central position of the hub decorative cover 1 and the decorative cover rear frame 2.

[0063] Since the height of the second preset height 25 of the guide rail 26 is sequentially decreased, the height of the slider 31 of the corresponding decorative cover baffle 3 is sequentially increased, and when the slider 31 reaches the inner side end 211 of the guide rail groove 21, the baffles 33 connected with the slider 31 are stacked and placed, so that the parts of all the decorative cover baffles 3 near the central position are partially overlapped at different heights.

[0064] Figure 5 is a working schematic diagram of the adjusting mechanism and the decorative cover baffle, and it can be seen that:

[0065] When the slider 31 of each decorative cover baffle 3 slides to the outer side end 212 of the guide rail groove 21, the decorative cover baffle 3 reaches the outer side position of completely covering the corresponding air vent 11.

[0066] When the slider 31 slides from the outer side end 212 of the guide rail 26 to the inner side end 211, the baffle 33 connected with the slider 31 also moves, and when the slider 31 reaches the inner side end 211, the decorative cover baffle 3 reaches the inner side position of completely not covering the air vent 1, and the opening rate of the air vent 11 can be from 0% to 100%, that is, the air vent 11 is from a fully closed state to a fully open state.

[0067] Figure 8 is a schematic diagram of the detection control unit cooperating with the adjusting mechanism, the detection control unit 5 includes a vehicle controller 51, a temperature sensor 52, a vehicle speed sensor 53 and a brake state sensor 54, and the vehicle controller 51 can signal interact with the temperature sensor 52, the vehicle speed sensor 53 and the brake state sensor 54; the vehicle controller 51 is electrically connected with the motor 44.

[0068] The motor 44 can be a stepping motor, and the vehicle controller 51 controls the rotation angle of the stepping motor to realize the adjusting function.

[0069] Among them, the temperature sensor 52 is arranged on the hub, the vehicle speed sensor 53 is arranged in the vehicle suspension, and the brake state sensor 54 is arranged in the vehicle brake device.

[0070] The temperature sensor 52 and the vehicle speed sensor 53 obtain the temperature and the speed of the hub and send corresponding signals to the vehicle controller 51; at the same time, the vehicle controller 51 collects the state signal of the brake state sensor 54 in real time.

[0071] The working principle of a preferred embodiment of the active hub decorative cover of the present application is as follows:

[0072] The vehicle controller 51 calculates the opening rate of the wheel hub air vent 11 according to the received signals, and sends a control signal to the motor 44.

[0073] The motor 44 drives the rotating shaft 43 to rotate a preset angle according to the control signal, and drives the driving swing rod 41 to move the connecting rod 42.

[0074] The movement of the connecting rod 42 drives the sliding block 31 of the wheel hub cover baffle 3 to slide on the guide rail 26 in the guide rail groove 21, so as to drive the wheel hub cover baffle 3 to move between the inner side end 211 and the outer side end 212 of the guide rail groove 21, so as to adjust the opening size of the wheel hub air vent 11 of the wheel hub cover 1.

[0075] Figures 2 to 4 It is a schematic diagram of the active wheel hub cover from full opening to full closing.

[0076] In the vehicle parking state, the wheel hub cover baffle 3 is in the fully open state, that is, the opening rate of the wheel hub air vent 11 on the wheel hub cover 1 is 100%.

[0077] In one practical example of the present application, when the vehicle speed sensor 53 on the detection control unit 5 detects that the vehicle speed is greater than 60kph, the temperature sensor 53 detects that the temperature is less than 300℃, and the brake plate state sensor 54 is in the non-trigger state, the vehicle controller 51 calculates that the opening rate of the wheel hub air vent 11 on the wheel hub cover 1 should be 0%. Then, the vehicle controller 51 sends a control signal to the motor 44 of the adjusting mechanism 4, and the motor 44 drives the rotating shaft 43 to rotate the driving swing rod 41, and the driving swing rod 41 drives the fixed column 32 of the wheel hub cover baffle 3 connected with the connecting rod 42, so that the sliding block 31 of the wheel hub cover baffle 3 slides along the guide rail 26 in the guide rail groove 21 on the wheel hub cover rear frame 2, and guides the wheel hub cover baffle 3 to reach the outer side position, at this time, the wheel hub cover baffle 3 completely closes the air vent 11.

[0078] When the vehicle stops accelerating, the vehicle speed sensor 53 detects that the vehicle speed decreases to 40kpm, and the vehicle controller 51 calculates that the opening rate of the wheel hub air vent 11 on the wheel hub cover 1 can be 100%. Then, the vehicle controller 51 drives the adjusting mechanism 4 to move as described above, so that the wheel hub cover baffle 3 slides to the inner side end 211 of the guide rail groove 21, and the air vent 11 is in the fully open state.

[0079] When the vehicle speed sensor 53 on the detection control unit 5 detects a vehicle speed of, for example, above 50 kph, the temperature sensor 53 detects a temperature of, for example, between 300-400°C, and the brake pedal state sensor 54 is in an untriggered state, the vehicle controller 51 calculates that the opening rate of the wheel hub vent 11 on the wheel hub cover 1 should be 25%. Then, the vehicle controller 51 drives the motor 44 to rotate by a preset angle, and drives the adjustment mechanism 4 to move, so that the sliding block 31 of the wheel hub cover shutter 3 slides in the guide rail slot 21, and the sliding block 31 slides to one quarter of the stroke of the guide rail slot 21, i.e. the vent 11 is in a 25% open state.

[0080] When the temperature sensor 53 detects a temperature of, for example, between 400-450°C, the vehicle controller 51 calculates that the opening rate of the wheel hub vent 11 on the wheel hub cover 1 should be 60%. Then, the vehicle controller 51 drives the motor 44 to rotate by a preset angle, and drives the adjustment mechanism 4 to move, so that the wheel hub cover shutter 3 slides in the guide rail slot 21, and the sliding block 31 slides to five thirds of the stroke of the guide rail slot 21, i.e. the vent 11 is in a 60% open state.

[0081] When the temperature sensor 53 detects a temperature of, for example, greater than 450°C, the vehicle controller 51 calculates that the opening rate of the wheel hub vent 11 on the wheel hub cover 1 should be 100%. Then, the vehicle controller 51 drives the motor 44 to rotate by a preset angle, and drives the adjustment mechanism 4 to move, so that the sliding block 31 of the wheel hub cover shutter 3 slides in the guide rail slot 21, and the sliding block 31 slides to the inner end 211 of the guide rail slot 21, i.e. the vent 11 is in a 100% open state.

[0082] When the brake pedal state sensor 54 on the detection control unit 5 is triggered, and the pedal stroke is detected to be between 25-50% and lasts for 5 seconds, the vehicle controller 51 calculates the opening rate of the vent 11 on the current wheel hub cover 1, and finds that the wheel hub vent opening rate is less than 25%. Then, the vehicle controller 51 drives the motor 44 to rotate by a preset angle, and drives the adjustment mechanism 4 to move, so that the sliding block 31 of the wheel hub cover shutter 3 slides in the guide rail slot 21, and the sliding block 31 slides to one quarter of the stroke of the guide rail slot 21, i.e. the vent 11 is in a 25% open state.

[0083] If the pedal travel reaches 25-50% and remains so for 8 seconds, the vehicle controller 51 calculates the opening ratio of the vent 11 on the wheel hub cover 1. If the vent opening ratio is less than 50%, the vehicle controller 51, as described above, drives the motor 44 to rotate by a preset angle and moves the adjustment mechanism 4, causing the slider 31 of the wheel hub cover baffle 3 to slide within the guide rail groove 21. The slider 31 slides to half the travel of the guide rail groove 21, meaning the vent 11 is in a 50% open state.

[0084] If the pedal travel reaches 50-100% and lasts for 5 seconds, the vehicle controller 51 calculates that the opening rate of the wheel hub vent 11 on the wheel hub decorative cover 1 should be 100%. Then, as described above, the vehicle controller 51 drives the motor 44 to rotate at a preset angle and drives the adjustment mechanism 4 to move, so that the slider 31 of the wheel hub decorative cover baffle 3 slides in the guide rail groove 21. The slider 31 slides to the inner end 211 of the guide rail groove 21, that is, the vent 11 is in the 100% open state.

[0085] like Figure 9 As shown, the size of the wheel hub opening ratio affects the wheel hub temperature, which is the temperature detected by the temperature sensor. When the vehicle is in motion, the vehicle speed sensor 53, brake pedal status sensor 54, and temperature sensor 52 located at the wheel hub acquire the vehicle speed, brake pedal status, and wheel hub temperature signals, respectively. The obtained signals are input to the vehicle controller 51, which calculates the heat dissipation and braking performance of the wheel hub and then controls the rotation angle of the stepper motor 44 to adjust the wheel hub opening ratio.

[0086] The present invention also includes a vehicle comprising the active wheel hub cover of the present invention according to any one or more of the foregoing embodiments, the technical features and effects of which correspond to the foregoing description, and therefore will not be repeated here.

[0087] In summary, the active wheel hub decorative cover provided by this invention includes multiple decorative cover baffles that can close the ventilation openings of the wheel hub decorative cover. The decorative cover baffles are connected to the rear frame of the wheel hub decorative cover, and the wheel hub is equipped with an adjustment mechanism for adjusting the rotation range of the decorative cover baffles. In this invention, the decorative cover baffles are a movable structure, actively controlled by a stepper motor rotating at a preset angle calculated by sensors and a vehicle controller. This allows the gaps in the ventilation openings to be closed during vehicle operation and exposed during vehicle braking, thus balancing the needs for reducing wind resistance during driving and the heat dissipation needs of the brake disc during braking.

[0088] When the vehicle runs at low speed, the vent of the hub cover is in the open state, which can enhance the heat dissipation of the brake; when the vehicle runs at high speed, the vent of the hub cover is in the closed state, so as to reduce the wind resistance of the automobile, and achieve the switching of the hub structure between the open state and the closed state. Therefore, the present application effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0089] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. An active wheel hub decorative cover, characterized in that, The application relates to a hub decorative cover (1) comprising a decorative panel (12) provided with at least one air vent (11); a decorative cover rear frame (2) comprising a circular frame (22) fixedly connected with the hub decorative cover (1) and at least one spoke (23) extending radially along the circular frame, the spoke (23) penetrating the air vent (11) of the hub decorative cover (1) and provided with a guide groove (21); an adjusting mechanism (4) connected with the decorative cover rear frame (2) and arranged between the hub decorative cover (1) and the decorative cover rear frame (2), the adjusting mechanism (4) comprising at least one active swing rod (41), at least one connecting rod (42), a rotating shaft (43) and a motor (44), the two ends of the active swing rod (41) being rotatably connected to the rotating shaft (43) and the connecting rod (42) respectively, and the rotating shaft (43) being connected to the motor (44); and at least one decorative cover baffle (3) arranged between the hub decorative cover (1) and the decorative cover rear frame (2), the decorative cover baffle (3) comprising a baffle (33), a sliding block (31) and a fixed column (32), the sliding block (31) and the fixed column (32) being arranged on the inner side of the baffle (33), the connecting rod (42) of the adjusting mechanism (4) being rotatably connected to the fixed column (32) of the baffle (33), and the sliding block (31) and the guide groove (21) of the decorative cover rear frame (2) being matched to enable the decorative cover baffle (3) to slide along the spoke (23). The center of the hub decorative cover (1), the center of the decorative cover rear frame (2) and the rotating shaft (43) of the adjusting mechanism (4) are arranged in an overlapped mode, the motor (44) drives the rotating shaft (43) of the adjusting mechanism (4) to drive the active swing rod (41) and the connecting rod (42) to move, the movement of the connecting rod (42) drives the sliding block (31) on the decorative cover baffle (3) to slide in the guide groove (21) of the spoke (23) on the decorative cover rear frame (2), so that the decorative cover baffle (3) can slide along the radial direction of the spoke (23) to the air vent to cover the air vent. The hub decorative cover (1) comprises a plurality of air vents (11) uniformly distributed between the decorative panels (12) and having the same size, one spoke (23) and one decorative cover baffle (3) are arranged corresponding to each air vent (11), and one active swing rod (41) and one connecting rod (42) are arranged corresponding to each decorative cover baffle (3). ​ ​ ​ 2. The hubcap of claim 1, wherein: ​ 3. The hubcap of claim 2, wherein: The center of the rear frame (2) of the decorative cover is provided with a through hole and a bearing, and the rotating shaft (43) of the adjusting mechanism (4) is arranged in the bearing; the rotating shaft (43) of the adjusting mechanism (4) is rigidly connected with the motor (44) and the rear frame (2) of the decorative cover respectively.

4. The hubcap of claim 3, wherein: The guide rail groove (21) comprises an inner side end (211) and an outer side end (212), and a guide rail (26) extending from the inner side end (211) to the outer side end (212) is arranged in the guide rail groove (21); the inner side end (211) is close to the center of the rear frame (2) of the decorative cover, and the outer side end (212) is close to the circular frame (22); the guide rail (26) has a first preset height (24) close to the inner side end (211), and has a second preset height (25) close to the outer side end (212); the first preset height (24) is smaller than the second preset height (25).

5. The hubcap of claim 4, wherein: In the guide rail groove (21) on the spoke (23), the first preset height (24) of the guide rail (26) is the same, and the second preset height (25) is different; the height of the sliding block (31) of the decorative cover baffle (3) is also different, so that when the sliding block (31) of the corresponding decorative cover baffle (3) slides along the guide rail in the guide rail groove (21) to the outer side position, all the decorative cover baffles (3) are located in the same plane; when the sliding block (31) of the corresponding decorative cover baffle (3) slides along the guide rail in the guide rail groove (21) to the inner side position, all the decorative cover baffles (3) are stacked in the center position of the hub decorative cover (1) and the rear frame (2) of the decorative cover, and the parts close to the center position are arranged in different heights.

6. The hubcap of claim 5, wherein: The driving swing rod (41) and the connecting rod (42) of the adjusting mechanism (4) are hingedly connected, the swing rod first end (411) of the driving swing rod (41) is provided with a spline sleeve; the rotating shaft (43) is a spline shaft, and the rotating shaft (43) is connected with the spline sleeve of the swing rod first end (411).

7. The hubcap of claim 5, wherein: The fixed column (32) on the decorative cover baffle (3) is located on one side of the baffle (33) close to the center position, and the connecting rod first end (421) of the connecting rod (42) of the adjusting mechanism (4) is hingedly connected with the fixed column (32).

8. The hubcap of claim 7, wherein: When the sliding block (31) slides to the outer end (212) of the guide rail (26) on several decorative cover baffles (3), the decorative cover baffles (3) reach the outer position of completely shielding the corresponding air vents (11); when the sliding block (31) slides from the outer end (212) to the inner end (211) of the guide rail (26), the baffle (33) connected with the sliding block (31) also moves, and when the sliding block (31) reaches the inner end (211), the decorative cover baffle (3) reaches the inner position of completely not shielding the air vent (11), and the opening rate of the air vent (11) is from 0% to 100%.

9. The hubcap of claim 8, wherein: The active wheel hub decorative cover structure further comprises a detection control unit (5), the detection control unit (5) comprises a vehicle controller (51), a temperature sensor (52), a vehicle speed sensor (53) and a brake state sensor (54), the vehicle controller (51) can signal interact with the temperature sensor (52), the vehicle speed sensor (53) and the brake state sensor (54), the temperature sensor (52) is arranged on the wheel hub, the vehicle speed sensor (53) is arranged in the vehicle suspension, and the brake state sensor (54) is arranged in the vehicle brake device.

10. The hubcap of claim 9, wherein: The temperature sensor (52) and the vehicle speed sensor (53) of the detection control unit (5) obtain the wheel hub temperature and the vehicle speed, and send signals to the vehicle controller (51), and the vehicle controller (51) obtains the state signal of the brake state sensor (54) in real time; the vehicle controller (51) calculates the opening rate of the air vent (11) on the wheel hub decorative cover (1) according to the received signal, and sends an adjustment signal to the motor (44); the motor (44) drives the rotation of the rotating shaft (43) by a preset angle according to the adjustment signal, and then drives the active swing rod (41) matched with the rotating shaft (43) to drive the connecting rod (42) to move; the movement of the connecting rod (42) drives the sliding block (31) of the decorative cover baffle (3) to slide on the guide rail in the guide rail groove (21), so as to drive the decorative cover baffle (3) to move between the inner position and the outer position, so as to adjust the opening size of the air vent (11) of the wheel hub decorative cover (1).

11. A vehicle characterized by comprising: The vehicle is provided with the active wheel hub decorative cover according to any one of claims 1-10. The vehicle is provided with the active wheel hub decorative cover according to any one of claims 1-10.

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