KR-20260066465-A - Vehicle wheel, shaft drive unit and vehicle including same

KR20260066465AKR 20260066465 AKR20260066465 AKR 20260066465AKR-20260066465-A

Abstract

A wheel for a vehicle according to one embodiment of the present invention comprises: a wheel body having an open hole and a first axis extending in a first direction as a central axis; a wheel cover covering at least a portion of the open hole; and a shaft having one side connected to the wheel cover, extending along the first axis and penetrating the wheel body, wherein the shaft can move the wheel cover in the first direction or rotate it around the first axis.

Inventors

김운태
김동현
황경민
신준식
박상면
한정민

Assignees

현대자동차주식회사
기아 주식회사

Dates

Publication Date: 20260512
Application Date: 20241104

Claims (20)

A wheel body having an open hole and a first axis extending in a first direction as a central axis; A wheel cover covering at least a portion of the above-mentioned open hole; and It includes a shaft, one side of which is connected to the wheel cover and extends along the first axis and penetrates the wheel body, The above shaft is a vehicle wheel capable of moving in the first direction relative to the wheel body or rotating around the first axis.
In Article 1, It further includes a shaft drive device connected to the other side of the shaft and capable of driving the wheel cover, The above shaft drive device is: A rotary motor capable of rotating the wheel cover and the shaft; and A vehicle wheel comprising a gear connecting the rotary motor and the shaft.
In Article 2, The above gear is: A first gear connected to the above rotary motor; and It includes the first gear and the second gear connected to the shaft, A vehicle wheel in which the thickness of the first gear is thicker than the thickness of the second gear.
In Article 1, It further includes a shaft drive device connected to the other side of the shaft and capable of driving the wheel cover, The above shaft drive device is: An actuator connected to the shaft and capable of moving the shaft in the first axial direction; A bracket for fixing the above actuator to the wheel body; and A vehicle wheel comprising a shaft support that surrounds at least a portion of the shaft and assists in the rotation of the shaft.
In Paragraph 4, The above shaft support includes a first shaft support, and The above first shaft support is: First shaft support body; and A vehicle wheel comprising a first bearing located between the first shaft support body and the shaft.
In Article 5, A vehicle wheel comprising a first shaft support member extending in a first direction from the wheel body and further including a first guide pin penetrating the first shaft support body.
In Article 5, It further includes a second gear that rotates the shaft, and The above shaft support further includes a second shaft support, The above second shaft support is: Second shaft support body; and It includes a second guide pin extending in a first direction from the second shaft support body, and A vehicle wheel in which the first shaft support and the second shaft support are located on opposite sides of the wheel body.
In Article 7, The second shaft support further includes a second bearing located between the shaft and the second shaft support body, and The above shaft is a vehicle wheel having a groove in which at least a portion of the first bearing and the second bearing can be located.
In Article 7, The second shaft support further includes a third bearing located between the second guide pin and the second gear, and The above second guide pin is a vehicle wheel that penetrates at least a portion of the bracket.
In Article 7, The above shaft drive device is a vehicle wheel further comprising an elastic member located between the second shaft support body and the bracket.
In Paragraph 4, The above actuator is: Actuator body; and It includes an actuator arm extending in the first direction by means of the actuator body, and One side of the actuator arm is formed in a conical shape, and the actuator arm and the shaft make point contact for a vehicle wheel.
In Paragraph 4, The shaft driving device further includes an auxiliary bearing that is coupled to the shaft and connects the shaft and the actuator, The above auxiliary bearing is a vehicle wheel that surrounds at least a part of the actuator.
In Article 2, The above shaft drive device is electrically connected to a control unit, and A vehicle wheel in which the above-described control unit changes the rotational speed or rotational direction of the wheel cover to variably control the relative rotational speed between the wheel cover and the wheel body.
In Paragraph 4, The above shaft drive device is electrically connected to a control unit, and A vehicle wheel in which the above-described control unit controls the actuator to enable mode switching between a first mode in which the wheel cover and the wheel body are in contact and a second mode in which the wheel cover moves in the first direction and is separated from the wheel body.
Vehicle body; A vehicle wheel coupled to the vehicle body; and It includes a control unit electrically connected to the above-mentioned vehicle wheel, and The above vehicle wheel is: Wheel body; A wheel cover covering at least a portion of the wheel body; A shaft having one side connected to the wheel cover and extending in a first direction and penetrating the wheel body; and It includes a shaft drive device connected to the other side of the shaft and located on the opposite side of the wheel cover relative to the wheel body, A vehicle in which the above control unit is electrically connected to the shaft drive device to move the wheel cover relative to the wheel body.
In Article 15, The above shaft drive device is: A bracket coupled to the above wheel body; A rotary motor fixed by the above bracket; and It includes a gear located between the rotary motor and the shaft and transmitting power of the rotary motor to the shaft, The above control unit controls the rotation motor to rotate the wheel cover, thereby rotating the vehicle.
In Article 16, A vehicle in which the above-described control unit changes the rotational speed or rotational direction of the wheel cover by controlling the rotational motor, thereby variably controlling the relative rotational speed between the wheel cover and the wheel body.
In Article 15, The above shaft drive device is: A bracket coupled to the wheel body; and It includes an actuator that is fixed by the above bracket and whose length changes in the first direction, A vehicle in which the above control unit is electrically connected to the actuator and changes the distance between the wheel cover and the wheel body by extending the actuator to move the wheel cover in the first direction.
In Article 15, The above-mentioned vehicle wheel rotates together in dependence on the rotation of the driving wheel, which receives driving force from the vehicle body, and is a non-driving wheel that does not receive driving force directly from the vehicle body.
In Article 18, A vehicle in which the above-described control unit controls the actuator to enable mode switching between a first mode in which the wheel cover and the wheel body are in contact and a second mode in which the wheel cover moves in the first direction and is separated from the wheel body.

Description

Vehicle wheel, shaft drive unit and vehicle including same The present invention relates to a vehicle wheel capable of improving vehicle driving performance by means of a wheel cover, a shaft drive device, and a vehicle including the same. With the development of eco-friendly electric vehicles, there is an increasing trend of applying vehicle wheels with small, flat open holes to improve the all-electric range (AER) of electric vehicles and to improve fuel efficiency in vehicles other than electric vehicles. The size of the open holes in vehicle wheels may be related to brake cooling performance and aerodynamic performance. Making the open holes smaller to reduce the amount of air flowing into the wheel from the outside can improve aerodynamic performance, but it may increase the internal temperature of the wheel and degrade brake cooling performance. Conversely, expanding the open holes increases the amount of air flowing into the wheel from the outside, which can improve brake cooling performance, but it may reduce aerodynamic performance, potentially lowering the vehicle's fuel efficiency or AER. Therefore, a vehicle wheel with a structure capable of controlling the amount of air flowing from the outside into the interior of the wheel for brake cooling is required as needed. FIG. 1 is a schematic perspective view illustrating a vehicle according to one embodiment of the present invention. FIG. 2 is a perspective view showing a wheel for a vehicle according to one embodiment of the present invention. FIG. 3 is a rear perspective view showing a wheel for a vehicle according to one embodiment of the present invention. FIG. 4 is a rear perspective view showing an enlarged view of a vehicle wheel according to one embodiment of the present invention. FIG. 5 is an exploded perspective view showing a wheel for a vehicle according to one embodiment of the present invention. FIG. 6 is a rear perspective view showing a wheel body according to one embodiment of the present invention. FIG. 7 is an exploded perspective view showing a bracket according to one embodiment of the present invention. FIG. 8 is a rear perspective view showing a wheel for a vehicle according to one embodiment of the present invention. FIG. 9 is an enlarged cross-sectional view of a vehicle wheel according to one embodiment of the present invention. FIG. 10 is an enlarged cross-sectional view of a vehicle wheel according to one embodiment of the present invention. FIG. 11 is an enlarged perspective view of a vehicle wheel according to one embodiment of the present invention. FIG. 12 is a cross-sectional view showing a wheel for a vehicle according to one embodiment of the present invention. FIG. 13 is an enlarged cross-sectional view of a vehicle wheel according to one embodiment of the present invention. FIG. 14 is a perspective view showing a wheel for a vehicle according to one embodiment of the present invention. FIG. 15 is a rear perspective view showing a wheel for a vehicle according to one embodiment of the present invention. FIG. 16 is a perspective view showing a wheel for a vehicle according to one embodiment of the present invention. FIG. 17 is a rear perspective view showing an enlarged view of a vehicle wheel according to one embodiment of the present invention. FIG. 18 is a cross-sectional view showing a wheel for a vehicle according to one embodiment of the present invention. The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the invention to specific embodiments, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. The term "and/or" includes a combination of a plurality of related described items or any of a plurality of related described items. Terms such as "~part," "~section," "~part," etc. may be used to describe various components, but said components should not be limited by said terms. These terms may refer not only to physically or visibly distinguishable components but also to descriptions of the function or configuration of a relevant part, even if the distinction or division is not clearly defined. The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In th