Z - direction expandable wheel - side module and vehicle

Abstract

The present invention provides a wheel side module and an automobile that can be extended in the Z direction. The wheel side module includes a wheel assembly and a suspension assembly, and the suspension assembly includes a first steering knuckle. Among them, the wheel assembly includes a tire and a rim. Below the tire, there is a grounding point. A first reference hole is provided inside the rim. The tire and the rim are connected in a breakable manner, and at the connection of the tire and the rim, different specifications of tires can be shared, or by adjusting the axis position of the first reference hole, the tire static radius of the grounding point and the axis can be adjusted according to different vehicle models. Through the structural design of the wheel side module, the Z - direction extension scheme of the platform architecture vehicle model can form a fixed strategy or a combination of strategies. For each strategy, a bandwidth is given in combination with the layout clearance and performance boundary, forming an internal specification or standard of the enterprise, improving the work efficiency in the pre - research stage of the platform architecture and reducing the development risk.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile manufacturing processes, and in particular to a wheel side module and an automobile. Background Art

[0002] "Automobile architecture" is the current mainstream design direction. The automobile architecture evolves from the platform. When the number of automobile platforms of an automobile enterprise is too large, it will also cause an increase in R & D costs. If a connection can be established between platforms, the role of the platform can be better played. The architecture is an architecture system based on the platform itself, providing engineering design solutions and modular manufacturing at a higher level, and running through links such as production, R & D, and products. It can be said that the architecture has higher extensibility and modularity characteristics.

[0003] However, there is currently no systematic elaboration on the architecture or platform-based vehicle expansion strategy. Most are conceived as internal technical solutions of the enterprise, and most structures cannot apply a unified expansion strategy and all require re-formulating solutions. Especially for the wheel side module, it results in low development efficiency and lack of generality in structure.

[0004] In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] The present invention provides a modular wheel side module and an automobile to solve the technical problems that when the size of an existing architecture vehicle changes in the Z-axis direction relative to the body coordinate system, there is no specific expansion structure and corresponding strategy, resulting in a large number of parts to be modified, a complex development plan, and poor migration and generality.

[0006] In view of the above, the present invention provides a wheel side module. By designing the wheel side module, when the height in the Z direction of different vehicle models changes, there is no need to re-design and develop, and a unified general part is used for expansion, which has strong migration. The present invention also provides an automobile including the above wheel side module.

[0007] In a first aspect, the present application first provides a wheel side module that is expandable in the Z direction. The wheel side module includes a wheel assembly and a suspension system. The suspension system includes a first steering knuckle. Among them, the wheel assembly includes a tire and a wheel rim. Below the tire, there is a grounding point. The tire and the wheel rim are connected in a breakable manner, and different specifications of tires can be shared at the connection of the tire and the wheel rim, and by adjusting the axis position of the first reference hole of the tire, the tire static radius of the grounding point and the axis can be adjusted according to different vehicle models.

[0008] In an optional solution of the present application, the suspension assembly includes a wheel center, and in the Z direction, the height of the wheel center relative to the vehicle horizontal reference is adjustable and can be adjusted according to different vehicle models.

[0009] In an alternative embodiment of the present application, the first knuckle includes a second reference hole and a hub bearing mounting hole. In the Z direction, the height difference between the hub bearing mounting hole and the second reference hole on the blank of the first knuckle is adjusted according to different vehicle models.

[0010] In an alternative embodiment of the present application, the hub bearing mounting holes are arranged in a matrix around the second reference hole with the second reference hole as the reference.

[0011] In an alternative embodiment of the present application, the suspension assembly further includes a second knuckle for replacement. The second knuckle also includes a hub bearing mounting hole, and the relative positions of the hub bearing mounting holes on the first knuckle and the second knuckle are different.

[0012] In an alternative embodiment of the present application, a machining area is provided on the blank of the first knuckle. Different positions or different shapes of hub bearing mounting holes and / or the second reference hole are machined on the machining area according to different vehicle models, so as to adjust the height difference between the hub bearing mounting hole and the second reference hole on the blank of the first knuckle.

[0013] In a second aspect, an embodiment of the present invention further provides a Z-direction expansion method for a wheel side module as described above. The Z-direction expansion method includes:

[0014] When the extended vehicle model has a Z direction less than a preset first threshold, change the static tire radius;

[0015] When the Z direction is greater than the first threshold and less than a preset second threshold range, adjust the height of the wheel center relative to the vehicle's horizontal reference.

[0016] When the Z direction is greater than the second threshold, change the static tire radius, adjust the height of the wheel center relative to the vehicle's horizontal reference, and at the same time adjust the height difference between the hub bearing mounting hole and the second reference hole on the blank of the first knuckle.

[0017] In an alternative embodiment of the present application, the static tire radius is adjusted within a preset first height bandwidth range; the height of the wheel center relative to the vehicle's horizontal reference is adjusted within a preset second height bandwidth range; and the height difference between the hub bearing mounting hole and the second reference hole on the blank of the first knuckle is adjusted within a preset third height range.

[0018] In an alternative embodiment of the present application, the first height bandwidth is less than 15 mm; the second height width is less than 15 mm, and the third height width is less than 10 mm.

[0019] In a second aspect of the present application, an automobile is further provided. The automobile includes the wheel side module as described above.

[0020] Beneficial effects

[0021] An embodiment of the present invention provides a wheel hub module that is expandable in the Z direction. The wheel hub module includes a wheel assembly and a suspension system. The suspension system includes a first steering knuckle. The wheel assembly is detachably connected through a tire and a rim, and different specifications of tires can be shared at the connection between the tire and the rim, or the static radius of the tire can be adjusted by adjusting the axis position of the first reference hole of the tire and other structural designs. Through the structural design of the wheel hub module, a fixed strategy or a combination of strategies can be formed for the Z-direction (vertical) expansion scheme of the platform architecture model. For each strategy, a bandwidth is given in combination with the layout gap and performance boundary to form an internal specification or standard of the enterprise, improve the work efficiency in the pre-research stage of the platform architecture, and reduce the development risk.

[0022] Other features and advantages of the embodiments of the present invention will be described in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the specific implementation or the description of the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic structural diagram showing an expandable wheel hub module in the Z direction according to an exemplary embodiment of the present invention;

[0025] FIG. 2(a) is a schematic structural diagram showing the wheel assembly as a general part in the expandable wheel hub module in the Z direction according to an exemplary embodiment of the present invention;

[0026] FIG. 2(b) is a cross-sectional view taken along line A-A at FIG. 2(a) in an embodiment of the present invention;

[0027] Figure 3 It is a schematic structural diagram (front view) showing the suspension system in the connected state in the expandable wheel hub module in the Z direction according to an exemplary embodiment of the present invention;

[0028] FIG. 4(a) is a schematic diagram of the blank of the first steering knuckle before processing in the wheel hub module provided by an embodiment of the present invention; and

[0029] FIG. 4(b) is a schematic structural diagram of the first steering knuckle after processing in the wheel hub module provided by an embodiment of the present invention;

[0030] FIG. 5(a) is a schematic structural diagram of the second steering knuckle in the wheel hub module provided by an embodiment of the present invention;

[0031] Figure 5(b) is a schematic structural diagram of the second steering knuckle in the wheel side module provided by the embodiment of the present invention; and

[0032] Figure 6 It is a flowchart of the Z-direction expansion method for the wheel side module provided by the embodiment of the present invention.

[0033] In the above drawings, the list of components represented by each label is as follows:

[0034] Detailed implementation manners

[0035] In order to make the above and other features and advantages of the present invention clearer, the present invention will be further described below with reference to the drawings. It should be understood that the specific embodiments given herein are for the purpose of explaining to those skilled in the art and are merely exemplary, not restrictive.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0038] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0039] An embodiment of the present invention proposes a structural design for a wheel side module, through which a platform architecture vehicle model can form a unified fixed strategy or strategy combination in the Z direction (longitudinal) expansion plan, aiming to solve the problems of low development efficiency and low versatility when expanding the wheel side module in the prior art.

[0040] It can be understood that the "X direction and Y direction" mentioned above are interpreted with reference to the vehicle coordinate system, that is, the straight line where the front direction of the vehicle is located is the X direction, the axial direction of the front wheels is the Y direction, and the direction perpendicular to the ground is the Z direction, and the same below.

[0041] [Overall Invention Concept]

[0042] Therefore, based on the technical problems existing in the prior art, this solution specifically proposes a modular wheel edge module 1000, and a wheel edge module 1000 that is expandable in the Z direction, aiming to solve the technical problems mentioned above.

[0043] See also Figure 1 , Figure 1 It is a schematic diagram of the structure of a wheel side module 1000 which is expandable in the Z direction according to an embodiment of the present invention.

[0044] As can be seen from the figure, in the embodiment of the present invention, the wheel side module 1000 includes a wheel assembly 100 and a suspension assembly 200 that are adjustable in the Z direction;

[0045] In terms of connection relationship, from the diagram (wheel module on the left), the wheel assembly 100 and the suspension system 200 are sequentially shown. The wheel assembly 100 is connected to the suspension system 200. In the wheel assembly 100 provided by the present invention, the wheel assembly 100 refers to a rim and a tire (not numbered one by one). The rim is a rigid wheel that fixes the tire bead, supports the tire, and bears the load together with the tire. The suspension system 200 refers to an elastic element, a guide mechanism, a shock absorber, etc.

[0046] The guide mechanism of the suspension system 200 includes a first steering knuckle 300 .

[0047] One side of the first steering knuckle 300 is connected to the wheel rim through the wheel hub bearing, and the other side is connected to the suspension, control arm, etc., for transmitting and bearing the vehicle load, supporting and driving the front wheel to rotate around the kingpin to turn the vehicle. When the vehicle is in motion, the first steering knuckle 300 is used to bear variable impact loads.

[0048] In the embodiments of the present invention, in order to meet the requirement of Z-axis adjustability, through structural design, the static radius of the tire, the wheel bounce travel, and the relative height between the rim bearing and the steering knuckle can be adaptively changed without re-design and development, realizing the architecture of the vehicle wheel side module and being able to be based on the structural design.

[0049]

Steering Knuckle

[0050] Please refer to FIGS. 2(a) - (b) and Figure 3 , FIG. 2(a) is a schematic structural diagram showing that the wheel assembly 100 is a common part in the Z-direction expandable wheel side module 1000 in the embodiments of the present invention; FIG. 2(b) is a cross-sectional view taken along line A - A at the position of FIG. 2(a) in the embodiments of the present invention.

[0051] In the embodiments of the present invention, the wheel assembly 100 includes a tire 101 and a rim 102. Below the tire 101, there is a ground contact point 110. A first reference hole 120 is provided at the center of the rim 102. The tire 101 and the rim 102 are connected in a breakable manner. The breakable connection means that after the gas inside the tire 101 is depressurized, the connection between the tire 101 and the rim 102 can be released.

[0052] It can be understood that the connection relationship between the rim 102 and the tire 101 adopted in the embodiments of the present invention is such that different specifications of tires 101 can be shared at the connection between the tire 101 and the rim 102, thereby realizing the Z-direction expansion here.

[0053] It should be noted that the "different specifications" of the tires referred to in the present invention mean different outer diameters and widths.

[0054] By according to the requirements of vehicle model expansion, the distance between the tire ground contact point 110 and the axis of the first reference hole 120 (the static radius of the tire), that is, △Z1 in the figure, can also be changed. By selecting different tire specifications for different vehicle models to adjust the static radius of the tire, the Z-direction expansion strategy can be unified.

[0055] In some embodiments, the axis position of the first reference hole 120 of the rim 102 can also be adjusted to realize the adjustment of the static radius of the ground contact point 110 and the axis according to different vehicle models.

[0056] Furthermore, the above-mentioned static radius of the tire is adjusted within a preset first height bandwidth range. The first height bandwidth range can be a formulated fixed strategy. Through experiments, the bandwidth is given for each strategy in combination with the layout gap and performance boundary within the design specifications, forming an internal enterprise specification or standard.

[0057] In summary, the wheel assembly 100 provided by the embodiments of the present invention realizes changing the distance between the tire contact point 110 and the axis of the first reference hole 120, that is, the static radius of the tire, only by changing the tire specifications through the structural design of the tire 101 and the rim 102. This strategy does not change the suspension hard points and the attitude of the rod system, and has the least impact on the suspension performance.

[0058]

Suspension assembly

[0059] Please refer to Figure 3 , Figure 3 which is a schematic diagram (front view) of the suspension system 200 in the connected state in the wheel side module 1000 with Z - direction expandability provided by the embodiments of the present invention.

[0060] The suspension system 200 includes a wheel center 220. In the Z - direction, the height of the wheel center 220 relative to the vehicle body horizontal reference XY plane is adjustable and can be adjusted within a preset second height bandwidth range according to different vehicle models.

[0061] It can be understood that the vehicle body horizontal reference XY plane is commonly defined at the height of the front wheel center of the vehicle body. In the embodiments of the present invention, the height of the wheel center 220 of the suspension system relative to the vehicle body horizontal reference (XY plane) is variable, that is, △Z2 in the figure is the wheel jumping stroke, and the initial curb wheel center height can be adjusted within a certain bandwidth range according to different vehicle models. Generally speaking, when expanding according to the vehicle model, the wheel center can be changed by suspension jumping.

[0062] Changing the relative height between the wheel center 220 and the vehicle body through suspension jumping. This strategy can not change the relative relationship of the suspension hard points, but the attitude of the rod system changes, which has a certain impact on the suspension performance.

[0063]

Steering knuckle

[0064] Please refer to FIGS. 4(a) - (b). FIG. 4(a) is a schematic diagram of the blank of the first steering knuckle 300 in the wheel side module 1000 provided by the embodiments of the present invention before processing, and FIG. 4(b) is a schematic diagram of the structure of the first steering knuckle 300 in the wheel side module 1000 provided by the embodiments of the present invention after processing.

[0065] In the embodiments of the present invention, for the sake of distinction, the blank of the first steering knuckle before processing, which is a casting or forging, is denoted as the first steering knuckle blank 300′, and the steering knuckle used after hole processing and post - treatment is denoted as the first steering knuckle 300, and the same hereinafter.

[0066] Moreover, the steering knuckle is in a double - arm shape as a whole before and after processing to ensure the space of the processing area 320′.

[0067] In an embodiment of the present invention, a machining area 320' is provided on one side of the first knuckle blank 300'. First, a basic second reference hole 310' is pre-opened in the first knuckle blank 300'. The machining areas 320' are arranged in a matrix around the second reference hole 310', and the machining areas 320' are planar areas. On the machining areas 320', hub bearing mounting holes 320 with different positions or different shapes can be machined according to different vehicle models, where the hub bearing mounting holes 320 are through holes penetrating the entire first knuckle 300.

[0068] During machining, the hub bearing mounting holes 320 are also arranged in a matrix around the second reference hole 310' with the second reference hole 310' as the reference. Using the second reference hole 310' as a reference coordinate can better perform precise position machining on the hub bearing mounting holes 320, facilitating the replacement of parameters such as coordinates and hole diameters.

[0069] It can be understood that by machining the vertical positions of the hub bearing mounting holes 320 differently, the height difference between the hub bearing mounting holes 320 and the second reference hole 310' on the blank part of the first knuckle 300 can be adjusted, and it can be adjusted within a preset third height bandwidth range according to different vehicle models.

[0070] As shown in the figure, in one example, the height dimension of the rim bearing mounting hole 320 on the first knuckle 300 can change relative to the second reference hole 310' of the first knuckle blank 300', that is, △Z3 in the figure. The machining areas 320' on the knuckle blank 300' can machine different hub bearing mounting holes 320 within the operating range of the third height bandwidth to achieve the change of △Z3.

[0071] By changing the position of the hub bearing mounting hole 320, the relative height between the hub bearing and the first knuckle 320 is changed, making the first knuckle 320 different. It is possible to newly develop or reserve a certain adjustment margin at the blank design stage, making the knuckle blanks for high and low models universal, and realizing the change of the installation positions of the hub bearing and the brake caliper through machining.

[0072] Please refer to FIGS. 5(a) - 5(b). FIG. 5(a) is a schematic structural diagram of the second knuckle 400 in the wheel side module 1000 provided by the embodiment of the present invention, and FIG. 5(b) is a schematic structural diagram of the second knuckle 400 in the wheel side module 1000 provided by the embodiment of the present invention for comparison. According to the above, the replaceable second knuckle 400 can be pre-machined. The second knuckle 400 also includes hub bearing mounting holes 320, and the relative positions of the hub bearing mounting holes 320 on the first knuckle 300 and the second knuckle 400 are different, so that it can be used for replacement of different vehicle models.

[0073]

Z - direction Expansion Strategy Customized According to the Above - mentioned Wheel End Module 1000

[0074] Please refer to Figure 6 , Figure 6 which is the flowchart of the Z - direction expansion method for the wheel end module provided by the embodiment of the present invention;

[0075] The embodiment of the present invention also provides a Z - direction expansion method for the wheel end module. According to the structural design of the above - mentioned wheel end module 1000, a Z - direction expansion strategy can be formulated to achieve a general architectural strategy, reduce development risks, and improve development efficiency. The method includes the following steps:

[0076] S101. When the extended vehicle model has a Z - direction less than a preset first threshold, change the static radius of the tire;

[0077] S102. When the Z - direction is greater than the first threshold and less than a preset second threshold range, on the basis of S101, further adjust the height of the wheel center relative to the vehicle's horizontal reference;

[0078] S103. When the Z - direction is greater than the second threshold, on the basis of S102, simultaneously adjust the height difference between the hub bearing mounting hole 320 and the second reference hole 310 on the blank part of the first steering knuckle 300.

[0079] Furthermore, the static radius of the tire is adjusted within a preset first height bandwidth range;

[0080] The height of the wheel center relative to the vehicle's horizontal reference is adjusted within a preset second height bandwidth range;

[0081] The height difference between the hub bearing mounting hole and the second reference hole on the blank part of the first steering knuckle is adjusted within a preset third height range.

[0082] It can be understood that for each strategy, a bandwidth is given in combination with the layout clearance and performance boundary to form an internal enterprise specification or standard, improve the work efficiency in the pre - research stage of the platform architecture, reduce development risks, and facilitate management and process improvement.

[0083] Optionally, the first height adjustment bandwidth is less than 15 mm; the second height adjustment bandwidth is less than 15 mm, and the third height adjustment bandwidth is less than 10 mm.

[0084] Specifically, the expansion of the ground clearance (Z - direction) of multiple vehicle models in the platform architecture planning stage is a key expansion requirement. This Z - direction expansion combination strategy can be understood as:

[0085] When the extended vehicle model is less than a preset first threshold in the Z direction, the vehicle model differentiation is small at this time. For the high and low stance vehicle models of the same level, due to the difference in ground clearance, it is necessary to adjust the relative height between the tire contact point and the vehicle body floor. Strategy S1 is preferentially adopted, that is, changing the static radius of the tire. This strategy does not change the suspension hard points and the attitude of the rod system, and has the least impact on the suspension performance. Considering the tire envelope limitation, the adjustment bandwidth of this strategy is generally not greater than 15 mm;

[0086] When it is within the range greater than the first threshold and less than a preset second threshold in the Z direction, at this time, it belongs to different levels of the same vehicle model. Due to the difference in ground clearance, it is necessary to adjust the relative height between the tire contact point and the vehicle body floor. Strategy S2 is preferentially adopted, that is, changing the relative height between the wheel center and the vehicle body by suspension movement. This strategy does not change the suspension hard points, but the attitude of the rod system changes, which has a certain impact on the suspension performance. The adjustment bandwidth is generally not greater than 15 mm;

[0087] When it is greater than the second threshold in the Z direction, for the larger ground clearance change of the cross-level high and low stance vehicle models, Strategy S3 is adopted, that is, changing the relative height between the wheel hub bearing and the steering knuckle. The steering knuckle is differentiated, and it can be newly developed or a certain adjustment margin can be reserved at the blank design stage to make the steering knuckle blanks of high and low vehicle models universal, and the installation positions of the wheel hub bearing and the caliper are changed through machining. This strategy only changes the wheel center point among the suspension hard points, and the attitude of the rod system does not change either, and it has less impact on the suspension performance. Limited by the clearance between the steering knuckle and the rim and the clearance between the outer ball joint of the control arm and the fixed joint of the drive shaft, the adjustment bandwidth is generally not greater than 10 mm.

[0088] The above three strategies S1~S3 can cover the Z-direction dimension expansion bandwidth of 0~40 mm, and can meet the expansion requirements of most vehicle models. The bandwidth is 0~40 mm, and it can cover A00 level~A level or A level~C level according to the vehicle model level.

[0089] The above three strategies can cover the Z-direction dimension expansion and have the following effects: Considering the impact on the suspension performance in the expansion strategy ranking, it can reduce the performance development risk; Considering the tire selection of different vehicle models in the expansion strategy ranking, it standardizes the tire selection dimension boundary, protects the suspension movement space to a certain extent in advance, and reduces the risk of later tire envelope verification; Considering the universality of the same-level vehicle models and the inheritance of cross-level vehicle models of the architecture components in the expansion strategy ranking, space and performance adjustment margins are reserved in the early stage of pre-research, reducing the development cost, cycle and performance risk; Single strategies or combined strategies are given for different expansion bandwidths, with a large coverage area, and the standardized expansion plan is convenient for internal implementation of the enterprise or formulation of relevant standards, and has strong operability.

[0090] Therefore, through the above design, when the vehicle changes in the Z direction, the parts do not need to be re-molded, the connection structure between the parts and the surrounding connecting parts remains unchanged, and the number of tooling adjustments and modified parts is very small, which is convenient for management and saves costs.

Specific Embodiment

[0092] Expanding from the A - level Sedan model to the B - level SUV model, strategy S103 is adopted, that is, changing the static radius of the tire, adjusting the height of the wheel center relative to the vehicle's horizontal reference, and simultaneously adjusting the height difference between the hub bearing mounting hole 320 and the second reference hole 310 on the blank of the first steering knuckle 300. The total expansion in the Z - direction is 37 mm. Among them: the change in the static radius of the tire △Z1 = 22 mm; the wheel's downward jump stroke △Z2 = 5 mm; the downward displacement of the steering knuckle hub bearing mounting hole △Z3 = 10 mm.

[0093] Those skilled in the art should understand that if all or part of the sub - modules involved in the wheel - side module 1000 provided in the embodiments of the present invention are combined or replaced by means of fusion, simple change, mutual transformation, etc., such as moving the positions of each component; or integrating the products formed thereby; or designing them to be detachable; as long as the combined components can form a device / device / system with specific functions, replacing the corresponding components of the present invention with such a device / device / system also falls within the protection scope of the present invention.

[0094] Although the embodiments of the present invention have been shown and described above, it can be understood that the above - mentioned embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above - mentioned embodiments within the scope of the present invention.

[0095] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non - exclusive inclusion, so that a process, method, commodity or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, commodity or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, commodity or device including the element.

[0096] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A wheel hub module that can be extended in the Z direction, characterized in that The wheel-end module includes a wheel assembly (100) and a suspension system (200), and the suspension system (200) includes a first steering knuckle (300). Wherein, the wheel assembly (100) includes a tire (101) and a rim (102), the outer side of the tire (101) includes a ground contact point (110), a first reference hole (120) is provided on the inner side of the rim (102), the tire (101) and the rim (102) are connected in a breakable manner, and different specifications of tires (101) can be shared at the connection of the tire (101) and the rim (102), and by adjusting the axial position of the first reference hole (120), the static tire radius of the ground contact point (110) and the axis can be adjusted according to different vehicle models; the suspension system (200) includes a wheel center (220), in the Z direction, the height of the wheel center (220) relative to the vehicle's horizontal reference is adjustable and is adjusted according to different vehicle models; the first steering knuckle (300) includes a second reference hole (310) and a hub bearing mounting hole (320), in the Z direction, the height difference between the hub bearing mounting hole (320) and the second reference hole on the blank of the first steering knuckle (300) is adjusted according to different vehicle models.

2. The wheel-end module according to claim 1, wherein The hub bearing mounting holes (320) are arranged in a matrix around the second reference hole (310) with the second reference hole (310) as the reference.

3. The wheel-end module according to claim 2, wherein The suspension system (200) further includes a second steering knuckle (400) for replacement, and the second steering knuckle (400) also includes a hub bearing mounting hole (320), and the relative positions of the hub bearing mounting holes (320) on the first steering knuckle (300) and the second steering knuckle (400) are different.

4. The wheel-end module according to claim 3, characterized in that A machining area is provided on the blank of the first steering knuckle (300), and hub bearing mounting holes (320) with different positions or different shapes and / or the second reference hole (310) are machined on the machining area according to different vehicle models, so as to adjust the height difference between the hub bearing mounting hole (320) and the second reference hole on the blank of the first steering knuckle (300).

5. A method for Z - direction expansion of a wheel hub module according to any one of claims 1 to 4, characterized in that, The Z-direction expansion method includes: When the extended vehicle model has a Z direction less than a preset first threshold, changing the static tire radius; When the Z direction is greater than the first threshold and less than a preset second threshold range, adjusting the height of the wheel center relative to the vehicle's horizontal reference; When the Z direction is greater than the second threshold, changing the static tire radius, adjusting the height of the wheel center relative to the vehicle's horizontal reference, and simultaneously adjusting the height difference between the hub bearing mounting hole (320) and the second reference hole (310) on the blank of the first steering knuckle (300).

6. The Z-direction expansion method of the wheel-end module according to claim 5, wherein the static tire radius is adjusted within a preset first height bandwidth range; the height of the wheel center relative to the vehicle's horizontal reference is adjusted within a preset second height bandwidth range; The height difference between the hub bearing mounting hole and the second reference hole on the blank of the first steering knuckle is adjusted within a preset third height range.

7. The method for Z-direction expansion of the wheel side module according to claim 6, characterized in that The first height width is less than 15 mm; the second height width is less than 15 mm, and the third height width is less than 10 mm.

8. A vehicle, characterized in that, The vehicle includes the wheel side module according to any one of claims 1 to 4.

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