Steering knuckle assembly, steering system and vehicle

Abstract

The invention relates to a steering knuckle assembly, a steering system and a vehicle, the steering knuckle assembly comprises an inner steering knuckle and an outer steering knuckle, the inner steering knuckle is suitable for being connected with a vehicle body and wheels to adjust the steering angle of the wheels relative to the vehicle body, and the outer steering knuckle is connected to the inner steering knuckle and suitable for being connected with the wheels; wherein the outer steering knuckle is configured to move relative to the inner steering knuckle to adjust the steering angle of the wheel, so that the inner steering knuckle can independently adjust the steering angle, meanwhile, the outer steering knuckle can independently adjust the steering angle relative to the inner steering knuckle, and a larger steering angle of the steering knuckle assembly can be achieved by adjusting the steering angle twice.

Description

Technical Field

[0001] The present application relates to the field of new energy technology, and in particular to a steering knuckle assembly, a steering system, and a vehicle. Background Art

[0002] The steering knuckle in the existing steering system has a single structure and single function, which is difficult to meet user needs. Summary of the invention

[0003] The embodiments of the present application provide a steering knuckle assembly, a steering system, and a vehicle, wherein the steering knuckle assembly includes an inner steering knuckle and an outer steering knuckle that can move with each other, so as to at least partially solve the above-mentioned technical problems.

[0004] In order to achieve the above object, according to a first aspect of the present application, a steering knuckle assembly is provided, comprising:

[0005] an inner steering knuckle, adapted to connect the vehicle body and the wheel to adjust a steering angle of the wheel relative to the vehicle body; and

[0006] An outer steering knuckle connected to the inner steering knuckle and adapted to be connected to the wheel;

[0007] The outer steering knuckle is configured to be movable relative to the inner steering knuckle to adjust the steering angle of the wheel.

[0008] Optionally, the outer steering knuckle is rotatably connected to the inner steering knuckle.

[0009] Optionally, the change in the torque of the wheel can drive the outer steering knuckle to rotate relative to the inner steering knuckle to change the steering angle of the wheel.

[0010] Optionally, the wheel center of the wheel and the rotation axis of the outer steering knuckle are staggered.

[0011] Optionally, a limiting assembly is further included, wherein the limiting assembly is connected to the outer steering knuckle and the inner steering knuckle to fix or change the relative position of the outer steering knuckle and the inner steering knuckle.

[0012] Optionally, the second limiting portion is provided with a accommodating cavity, and the first limiting portion is movably installed in the accommodating cavity to divide the accommodating cavity into a first sub-cavity and a second sub-cavity; wherein the first sub-cavity and the second sub-cavity are suitable for accommodating a medium, and the medium is suitable for controlling the relative movement between the first limiting portion and the second limiting portion.

[0013] Optionally, the limit assembly also includes a valve, and the second limit portion is also provided with a channel, and the channel is connected to the first sub-cavity and the second sub-cavity; wherein a valve is provided in the channel, and the valve is suitable for allowing or preventing the medium from flowing between the first sub-cavity and the second sub-cavity through the channel to control the relative movement between the first limit portion and the second limit portion.

[0014] Optionally, the first limiting portion is movably installed in the second limiting portion.

[0015] Optionally, the first limiting portion is rotatably mounted in the second limiting portion.

[0016] Optionally, the first limiting portion is integrally provided with the outer steering knuckle, and the second limiting portion is integrally provided with the inner steering knuckle.

[0017] Optionally, one of the inner steering knuckle and the outer steering knuckle is provided with a connecting portion, and the other of the inner steering knuckle and the outer steering knuckle is provided with a matching portion, and the connecting portion cooperates with the matching portion to rotationally connect the inner steering knuckle and the outer steering knuckle.

[0018] Optionally, a rotating hole is provided on the inner steering knuckle, and a rotating shaft is provided on the outer steering knuckle, and the rotating hole cooperates with the rotating shaft to enable the inner steering knuckle to be rotatably connected to the outer steering knuckle.

[0019] Optionally, a brake housing is further included, wherein the brake housing is integrated with the outer steering knuckle.

[0020] According to a second aspect of the present application, a steering system is provided, comprising a steering knuckle assembly as described in any of the above embodiments.

[0021] Optionally, the steering system includes a primary steering system and a secondary steering system, the primary steering system includes the inner steering knuckle, the secondary steering system includes the outer steering knuckle, and the primary steering system and the secondary steering system can independently adjust the steering angle of the wheel.

[0022] Optionally, the primary steering system further comprises a steering gear assembly, wherein the steering gear assembly comprises a steering tie rod for driving the inner steering knuckle to rotate, wherein the steering tie rod is fixedly connected to the inner steering knuckle. Optionally, the primary steering system further comprises a wheel hub unit, wherein the outer steering knuckle comprises a mounting hole, and wherein the mounting hole is used to mount the wheel hub unit.

[0023] According to a third aspect of the present application, a vehicle is provided, comprising a steering knuckle assembly as described in any one of the above embodiments, or a steering system as described in any one of the above embodiments.

[0024] Optionally, there are multiple wheels; wherein, when the vehicle turns, the axes of the multiple wheels intersect at one point.

[0025] Optionally, there are multiple wheels; in two wheels that are opposite to each other along the width direction of the vehicle body, each steering knuckle assembly is suitable for driving the corresponding wheel to deflect so that the deflection directions of the two wheels are opposite.

[0026] Optionally, when the vehicle is in a braking state, among the two wheels opposite to each other along the width direction of the vehicle body, each steering knuckle assembly is suitable for driving the corresponding wheel to deflect so that the deflection directions of the two wheels are opposite.

[0027] Optionally, the inner steering knuckle is included in a primary steering system, and the outer steering knuckle is included in a secondary steering system; wherein, among the two wheels opposite to each other along the width direction of the vehicle body, when the primary steering system is in a non-working state, the secondary steering system is suitable for driving the corresponding wheels to deflect so that the deflection directions of the two wheels are opposite.

[0028] In the steering knuckle assembly of the embodiment of the present application, the steering knuckle assembly is divided into an inner steering knuckle and an outer steering knuckle. The inner steering knuckle is suitable for connecting the vehicle body and the wheel to adjust the steering angle of the wheel relative to the vehicle body, and the outer steering knuckle is configured to move relative to the inner steering knuckle to adjust the steering angle of the wheel, so that the inner steering knuckle can independently adjust the steering angle, and the outer steering knuckle can also independently adjust the steering angle relative to the inner steering knuckle. By adjusting the steering angle twice, a larger steering angle of the steering knuckle assembly can be achieved; the technical problem of the steering knuckle assembly in the prior art that a large steering angle and practicality cannot be taken into account at the same time is alleviated.

[0029] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0031] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0032] Figure 1 is a structural schematic diagram of a steering system provided in an exemplary embodiment of the present disclosure;

[0033] Figure 2 is a schematic structural diagram of an inner steering knuckle in a steering knuckle assembly provided in an exemplary embodiment of the present disclosure;

[0034] Figure 3 is a schematic diagram of a first structure of an outer steering knuckle in a steering knuckle assembly provided in an exemplary embodiment of the present disclosure;

[0035] Figure 4 is a second structural schematic diagram of an outer steering knuckle in a steering knuckle assembly provided in an exemplary embodiment of the present disclosure;

[0036] Figure 5 is a schematic structural diagram of a limit assembly in a steering knuckle assembly provided in an exemplary embodiment of the present disclosure;

[0037] Figure 6 is a schematic diagram of a first state of a limit assembly in a steering knuckle assembly provided in an exemplary embodiment of the present disclosure;

[0038] Figure 7 is a schematic diagram of a second state of a limit assembly in a steering knuckle assembly provided in an exemplary embodiment of the present disclosure;

[0039] Figure 8 is a schematic diagram of a state in which a secondary steering system in a steering system provided in an exemplary embodiment of the present disclosure rotates counterclockwise;

[0040] Fig. 9 is a schematic diagram of a clockwise rotating state of a secondary steering system in a steering system provided in an exemplary embodiment of the present disclosure;

[0041] Fig.10 is a schematic structural diagram of a steering system in an initial state provided in an exemplary embodiment of the present disclosure;

[0042] Fig.11 is a schematic diagram of a steering system provided in an exemplary embodiment of the present disclosure turning counterclockwise to an extreme state;

[0043] Fig.12 is a first structural schematic diagram of a steering knuckle assembly provided in an exemplary embodiment of the present disclosure;

[0044] Fig.13 is a second structural schematic diagram of a steering knuckle assembly provided in an exemplary embodiment of the present disclosure.

[0045] Description of reference numerals:

[0046] 1. Steering system;

[0047] 2. inner steering knuckle; 21. first main body; 22. steering hole; 23. first mounting bracket; 24. second mounting bracket;

[0048] 3. outer steering knuckle; 31. steering shaft; 32. third mounting bracket; 33. mounting hole; 34. brake housing; 35. second main body; 301 first part; 302 second part;

[0049] 4. Limiting assembly; 41. First limiting portion; 42. Second limiting portion; 43. First sub-chamber; 44. Second sub-chamber; 45. Channel; 46. Valve; 47. Piston;

[0050] 5. Steering gear assembly; 51. Steering tie rod; 52. Swing arm assembly;

[0051] 6. Wheel hub unit. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0053] According to the first aspect of this application, see Figure 1 , Figure 2 , Figure 3 The steering knuckle assembly provided by the present invention includes an inner steering knuckle 2 and an outer steering knuckle 3, wherein the inner steering knuckle 2 is suitable for connecting the vehicle body and the wheel to adjust the steering angle of the wheel relative to the vehicle body, and the outer steering knuckle 3 is connected to the inner steering knuckle 2 and is suitable for connecting the wheel; wherein the outer steering knuckle 3 is configured to move relative to the inner steering knuckle 2 to adjust the steering angle of the wheel.

[0054] The inner steering knuckle 2 can be indirectly connected to the wheel via the outer steering knuckle 3 .

[0055] In this embodiment, the steering knuckle assembly is divided into an inner steering knuckle 2 and an outer steering knuckle 3. The inner steering knuckle 2 is suitable for connecting the vehicle body and the wheel to adjust the steering angle of the wheel relative to the vehicle body. The outer steering knuckle 3 is configured to move relative to the inner steering knuckle 2 to adjust the steering angle of the wheel, so that the inner steering knuckle 2 can independently adjust the steering angle, and the outer steering knuckle 3 can also independently adjust the steering angle relative to the inner steering knuckle 2. By adjusting the steering angle twice, a larger steering angle of the steering knuckle assembly can be achieved.

[0056] In one embodiment, see Figure 1 , Figure 2 , Figure 3 The outer steering knuckle 3 is rotatably connected to the inner steering knuckle 2.

[0057] The outer steering knuckle 3 can be rotatably connected to the inner steering knuckle 2 via a pin shaft.

[0058] It can be understood that, by the outer steering knuckle 3 and the inner steering knuckle 2 being rotatably connected to each other, the steering angle of the wheel relative to the vehicle body can be additionally adjusted to achieve a larger steering angle.

[0059] In one embodiment, the change in the wheel torque can drive the outer steering knuckle 3 to rotate relative to the inner steering knuckle 2 to change the steering angle of the wheel.

[0060] The inner steering knuckle 2 and the outer steering knuckle 3 are rotatably connected along a rotation axis.

[0061] The wheel center of the wheel cannot be located on the rotation axis to avoid the torque failing to drive the inner steering knuckle 2 and the outer steering knuckle 3 to rotate relative to each other.

[0062] It can be understood that the inner steering knuckle 2 and the outer steering knuckle 3 are driven to rotate relative to each other by torque; without providing additional driving force, not only can at least one driving component be reduced, but also, since the torque is used to achieve the relative rotation of the inner steering knuckle 2 and the outer steering knuckle 3, it can also be beneficial to energy saving and environmental protection.

[0063] In one embodiment, the wheel center of the wheel and the rotation axis of the outer steering knuckle are arranged in an offset manner.

[0064] Therein, the outer steering knuckle rotates relative to the inner steering knuckle about a rotation axis.

[0065] It can be understood that when the wheel center is located on the rotation axis of the outer steering knuckle, the change in the torque of the wheel cannot drive the outer steering knuckle 3 to rotate relative to the inner steering knuckle 2; therefore, by staggering the wheel center and the rotation axis of the outer steering knuckle, the change in the torque of the wheel can drive the outer steering knuckle 3 to rotate relative to the inner steering knuckle 2 to change the steering angle of the wheel.

[0066] In one embodiment, see Figure 5 , and also includes a limiting component 4, which is connected to the outer steering knuckle 3 and the inner steering knuckle 2 to adjust the relative position of the outer steering knuckle 3 and the inner steering knuckle 2.

[0067] The limiting assembly 4 is connected between the outer steering knuckle 3 and the inner steering knuckle 2 .

[0068] It can be understood that when the outer steering knuckle 3 and the inner steering knuckle 2 rotate relative to each other, the limit assembly 4 fails, causing the relative position of the outer steering knuckle 3 and the inner steering knuckle 2 to change with the rotation; when there is no need for the outer steering knuckle 3 and the inner steering knuckle 2 to rotate relative to each other, the limit assembly 4 works, so that the outer steering knuckle 3 and the inner steering knuckle 2 are relatively fixed and cannot rotate relative to each other, thereby achieving the limitation of the outer steering knuckle 3 and the inner steering knuckle 2.

[0069] It should be noted that the working of the limit assembly 4 refers to: the limit assembly 4 plays a limiting role on the outer steering knuckle 3 and the inner steering knuckle 2; when the limit assembly 4 is working, the positions of the limit assembly 4, the inner steering knuckle 2 and the outer steering knuckle 3 are relatively fixed. At this time, the limit assembly 4, the inner steering knuckle 2 and the outer steering knuckle 3 can be regarded as a whole, and the inner steering knuckle 2 is connected to the vehicle through the whole, so that the steering angle of the wheel relative to the vehicle body is adjusted through the inner steering knuckle 2.

[0070] In this embodiment, the limit assembly 4 can be used to control whether the outer steering knuckle 3 and the inner steering knuckle 2 rotate relative to each other under the torque, so that the outer steering knuckle 3 and the inner steering knuckle 2 can rotate relative to each other only when needed, so as to further adjust the steering angle of the wheel relative to the vehicle body.

[0071] In one embodiment, see Figure 5 The limiting assembly 4 includes a first limiting portion 41 and a second limiting portion 42 which are movably connected; wherein the first limiting portion 41 and the second limiting portion 42 are connected between the outer steering knuckle 3 and the inner steering knuckle 2 to adjust the relative position of the outer steering knuckle 3 and the inner steering knuckle 2.

[0072] The first limiting portion 41 may be a movable portion, the second limiting portion 42 may be a fixed portion, and the first limiting portion 41 and the second limiting portion 42 may be switched between a movable connection and a fixed connection to adjust the relative positions of the outer steering knuckle 3 and the inner steering knuckle 2 .

[0073] It can be understood that, by connecting the first limiting portion 41 and the second limiting portion 42 between the outer steering knuckle 3 and the inner steering knuckle 2, when the first limiting portion 41 and the second limiting portion 42 can move relatively, the outer steering knuckle 3 and the inner steering knuckle 2 rotate relatively to further adjust the steering angle of the wheel relative to the vehicle body, thereby increasing the maximum steering angle of the vehicle relative to the vehicle body.

[0074] In one embodiment, the second limiting portion 42 is provided with a accommodating cavity, and the first limiting portion 41 is movably installed in the accommodating cavity to divide the accommodating cavity into a first sub-cavity 43 and a second sub-cavity 44; wherein the first sub-cavity 43 and the second sub-cavity 44 are suitable for accommodating a medium, and the medium is suitable for controlling the relative movement between the first limiting portion 41 and the second limiting portion 42.

[0075] In one embodiment, see Figure 6 and Figure 7 The limiting assembly 4 also includes a valve 46, and the second limiting portion 42 is also provided with a channel, which is connected to the first sub-cavity 43 and the second sub-cavity 44; wherein a valve 46 is provided in the channel, and the valve 46 is suitable for allowing or preventing the medium from flowing between the first sub-cavity 43 and the second sub-cavity 44 through the channel to control the relative movement between the first limiting portion 41 and the second limiting portion 42.

[0076] The first sub-cavity 43 and the second sub-cavity 44 in the limiting assembly 4 are connected through a channel 45 .

[0077] The first limiting portion 41 is connected to the outer steering knuckle 3 , and the second limiting portion 42 is connected to the inner steering knuckle 2 .

[0078] The first sub-cavity 43 is located at a side of the second sub-cavity 44 close to the first limiting portion 41 .

[0079] The valve 46 may be a solenoid valve 46 .

[0080] It can be understood that when the limit assembly 4 fails, the first sub-cavity 43 and the second sub-cavity 44 are connected, and the media in the first sub-cavity 43 and the second sub-cavity 44 are exchanged through the channel 45. The first limit portion 41, driven by the outer steering knuckle 3, pushes the medium to flow to the second sub-cavity 44 through the channel 45, thereby realizing the mutual rotation of the outer steering knuckle 3 and the inner steering knuckle 2 to adjust the steering angle of the wheel relative to the vehicle body.

[0081] It can be understood that the solenoid valve 46 is disposed in the channel 45 . When the solenoid valve 46 is closed, the channel 45 is disconnected; when the solenoid valve 46 is opened, the channel 45 is connected.

[0082] In this embodiment, the position limiting assembly 4 can be made to work or fail by opening or closing the electromagnetic valve 46 , and whether the outer steering knuckle 3 and the inner steering knuckle 2 rotate relative to each other can be better regulated by the electromagnetic valve 46 .

[0083] In one embodiment, the valve can also control the speed of rotation of the outer steering knuckle relative to the inner steering knuckle by controlling the flow speed of the medium in the first sub-chamber 43, the second sub-chamber 44 and the channel 45.

[0084] It can be understood that, when the flow rate of the medium is faster, the outer steering knuckle rotates faster relative to the inner steering knuckle; when the flow rate of the medium is slower, the outer steering knuckle rotates slower relative to the inner steering knuckle; in this way, the steering speed of the outer steering knuckle relative to the inner steering knuckle can be adjusted.

[0085] In one embodiment, see Fig.12 The first limiting portion 41 is movably installed in the second limiting portion 42 , and the second limiting portion 42 is provided with a channel 45 .

[0086] The first limiting portion 41 is connected to the piston 47 , and the piston 47 is located in the second limiting portion 42 to separate the first sub-cavity 43 from the second sub-cavity 44 . The first limiting portion 41 and the piston 47 move together in the direction in which the first limiting portion 41 extends or shortens.

[0087] It can be understood that the first limiting portion 41 and the second limiting portion 42 can move relative to each other to better cooperate with the rotation between the inner steering knuckle 2 and the outer steering knuckle 3 .

[0088] In one embodiment, see Fig.13 The first limiting portion 41 is rotatably installed in the second limiting portion 42 . The first limiting portion 41 is integrally provided with the outer steering knuckle 3 , and the second limiting portion 42 is integrally provided with the inner steering knuckle 2 .

[0089] The outer steering knuckle 3 includes a steering shaft 31 , and the inner steering knuckle 2 includes a first main body portion 21 .

[0090] It can be understood that by using the steering shaft 31 as the first limiting portion 41, the first main body 21 as the second limiting portion 42, and the outer steering knuckle 3 and the inner steering knuckle 2 acting as the limiting component 4, there is no need to set up an additional limiting component 4, which saves space and reduces costs.

[0091] In one embodiment, one of the inner steering knuckle 2 and the outer steering knuckle 3 is provided with a connecting portion, and the other of the inner steering knuckle and the outer steering knuckle is provided with a matching portion, and the connecting portion cooperates with the matching portion to rotationally connect the inner steering knuckle 2 and the outer steering knuckle 4.

[0092] Optionally, a rotating hole is provided on the inner steering knuckle, and a rotating shaft is provided on the outer steering knuckle, and the rotating hole cooperates with the rotating shaft to enable the inner steering knuckle to be rotatably connected with the outer steering knuckle.

[0093] In one embodiment, the inner steering knuckle 2 includes at least one steering hole 22 , and the steering hole 22 is used for rotationally connecting with the outer steering knuckle 3 .

[0094] The connecting part is the steering knuckle 3 , and the matching part is the steering hole 2 .

[0095] The inner steering knuckle 2 includes a first main body portion 21 and a steering hole 22 . The steering hole 22 is disposed in the first main body portion 21 , and the steering hole 22 is rotatably connected to the steering shaft 31 .

[0096] It can be understood that the steering hole 22 is used for the inner steering knuckle 2 to be rotatably connected to the outer steering knuckle 3 so as to adjust the steering angle of the wheel relative to the vehicle body.

[0097] In one embodiment, a limiting assembly 4 is further included, the limiting assembly 4 includes a second limiting portion 42 , and the inner steering knuckle 2 includes a first mounting bracket 23 , and the first mounting bracket 23 is used for being fixedly connected to the second limiting portion 42 .

[0098] The second limiting portion 42 may be fixedly connected to the first mounting bracket 23 by bolts.

[0099] It can be understood that the second limiting portion 42 is relatively fixed to the inner steering knuckle 2, and only the outer steering knuckle 3 needs to be connected to the first limiting portion 41 so that the first limiting portion 41 is driven by the outer steering knuckle 3, so that the first limiting portion 41 is relatively displaced with respect to the second limiting portion 42, thereby adjusting the steering angle between the outer steering knuckle 3 and the inner steering knuckle 2.

[0100] In one embodiment, the outer steering knuckle 3 includes a steering shaft 31 , and the steering shaft 31 is used to be rotatably connected to the steering hole 22 of the inner steering knuckle 2 .

[0101] The outer steering knuckle 3 includes a steering shaft 31 , and the outer steering knuckle 3 is rotatably connected to the steering hole 22 of the inner steering knuckle 2 via the steering shaft 31 , so as to adjust the steering angle of the wheel relative to the vehicle body.

[0102] In one embodiment, the steering shaft 31 includes a first portion 301 and a second portion 302 that are coaxially arranged, the first portion 301 is connected to a corresponding steering hole 22 , and the second portion 302 is connected to another corresponding steering hole 22 .

[0103] The outer steering knuckle 3 includes a second main body portion 35 .

[0104] The first portion 301 and the second portion 302 are respectively connected to the second main body portion 35 and are located at two opposite sides of the second main body portion 35 .

[0105] It can be understood that the steering shaft 31 is divided into a coaxial first part 301 and a second part 302 , the inner steering knuckle 2 includes two oppositely arranged steering holes 22 , and the two steering shafts 31 are respectively connected to the two steering holes 22 to achieve a rotational connection between the inner steering knuckle 2 and the outer steering knuckle 3 .

[0106] In one embodiment, see Figure 2 , Figure 3 , Figure 4 , Figure 5 , also includes a limiting component 4, the outer steering knuckle 3 includes a third mounting bracket 32, and the third mounting bracket 32 ​​is used to be fixedly connected to the first limiting portion 41.

[0107] The first limiting portion 41 may be fixedly connected to the third mounting bracket 32 ​​by bolts.

[0108] It can be understood that the first limiting portion 41 is connected to the third mounting bracket 32 ​​of the outer steering knuckle 3 , so that the first limiting portion 41 has a limiting effect on the outer steering knuckle 3 .

[0109] In one embodiment, see Figure 4 , and also includes a brake housing 34 , which is integrated with the outer steering knuckle 3 .

[0110] The brake housing 34 may be a caliper brake or a drum brake.

[0111] It can be understood that, by integrally arranging the brake housing 34 and the outer steering knuckle 3 , the overall weight of the vehicle can be reduced and the strength of the brake housing 34 and the outer steering knuckle 3 can be improved.

[0112] According to the second aspect of this application, please refer to Figure 1 , a steering system 1 is also provided, comprising a steering knuckle assembly as described in any of the above embodiments.

[0113] In one embodiment, the steering system 1 includes a primary steering system 1 and a secondary steering system 1. The primary steering system 1 is that the inner steering knuckle 2 rotates to drive the wheel to steer, and the secondary steering system 1 is that the outer steering knuckle 3 rotates relative to the inner steering knuckle 2 to drive the wheel to steer. The primary steering system 1 and the secondary steering system 1 are independent of each other.

[0114] It can be understood that the steering system 1 is composed of a primary steering system 1 and a secondary steering system 1. The two steering systems 1 are independent of each other, which can meet the redundancy requirements of the wire control steering regulations and is conducive to mass production.

[0115] It can be understood that, through the independent primary steering system 1 and secondary steering system 1 , after the primary steering system 1 completes the steering angle, the secondary steering system 1 can further adjust the steering angle to obtain a larger steering angle.

[0116] It should be noted that the steering angle can be further adjusted through the secondary steering system 1 so that the axes of the four wheels intersect at one point, so that when the vehicle turns, all the wheels are in a rolling state, reducing the wear between the individual wheels and the ground and extending the service life of the wheels.

[0117] In one embodiment, see Figure 1 , and also includes a steering gear assembly 5, which includes a steering rod 51 for driving the inner steering knuckle 2 to rotate, and the steering rod 51 is fixedly connected to the inner steering knuckle 2.

[0118] The steering gear assembly 5 further includes a swing arm assembly 52 , and the swing arm assembly 52 is used for connecting the steering system 1 with the vehicle body.

[0119] It can be understood that the steering gear assembly 5 drives the inner steering knuckle 2 through the steering rod 51, so that the inner steering knuckle 2 can adjust the steering angle of the wheel; the swing arm assembly 52 is used to connect the steering system 1 and the vehicle body to improve the stability of the steering system 1 and the vehicle body.

[0120] In one embodiment, see Figure 2 The inner steering knuckle 2 includes a second mounting bracket 24 , and the steering tie rod 51 is mounted on the second mounting bracket 24 .

[0121] The second mounting bracket 24 and the steering tie rod 51 may be threadedly connected.

[0122] It is understandable that the steering tie rod 51 can be more stably connected to the inner steering knuckle 2 via the second mounting bracket 24 located on the inner steering knuckle 2 .

[0123] In one embodiment, see Figure 1 , also includes a wheel hub unit 6, the outer steering knuckle 3 includes a mounting hole 33, and the mounting hole 33 is used to install the wheel hub unit 6.

[0124] The wheel hub unit 6 is used to connect with the wheel to drive the wheel to turn.

[0125] It can be understood that the outer steering knuckle 3 is connected to the wheel hub unit 6 via the mounting hole 33 , so that the wheel hub unit 6 and the wheel are driven to steer via the outer steering knuckle 3 .

[0126] In one embodiment, a steering gear assembly 5 is further included, the outer steering knuckle 3 includes a steering shaft 31 , and the wheel center of the wheel is located on a side of the steering shaft 31 away from the steering gear assembly 5 .

[0127] It also includes a limit assembly 4, one end of which is fixedly connected to the inner steering knuckle 2, and the other end of the limit assembly 4 is fixedly connected to the outer steering knuckle 3; when the torque of the wheel increases, the wheel rotates toward the side close to the steering gear assembly 5, and the other end of the limit assembly 4 is shortened; when the torque of the wheel decreases, the wheel rotates toward the side away from the steering gear assembly 5, and the other end of the limit assembly 4 is extended.

[0128] In one embodiment, a steering gear assembly 5 is further included, the outer steering knuckle 3 includes a steering shaft 31 , and the wheel center of the wheel is located on the side of the steering shaft 31 facing the steering gear assembly 5 .

[0129] It also includes a limit assembly 4, one end of which is fixedly connected to the inner steering knuckle 2, and the other end of the limit assembly 4 is fixedly connected to the outer steering knuckle 3; when the torque of the wheel increases, the wheel rotates toward the side away from the steering gear assembly 5, and the other end of the limit assembly 4 extends; when the torque of the wheel decreases, the wheel rotates toward the side close to the steering gear assembly 5, and the other end of the limit assembly 4 shortens.

[0130] It should be noted that when the wheel center is located on the side of the steering shaft 31 facing the steering gear assembly 5, the steering direction of the outer steering knuckle 3 is opposite to that of the inner steering knuckle 2 compared to when the wheel center is located on the side of the steering shaft 31 away from the steering gear assembly 5.

[0131] In one embodiment, see Figure 8 , Fig. 9 , Fig.10, Fig.11 The maximum clockwise rotation angle of the wheel driven by the primary steering system 1 is a first angle, and the maximum clockwise rotation angle of the wheel driven by the secondary steering system 1 is a second angle, wherein the maximum clockwise rotation angle of the wheel driven by the steering system 1 is the sum of the first angle and the second angle.

[0132] Among them, when the steering system 1 drives the wheel to rotate counterclockwise, the maximum rotation angle of the wheel driven by the first-level steering system 1 in the counterclockwise direction is the third angle, the maximum rotation angle of the wheel driven by the second-level steering system 1 in the clockwise direction is the fourth angle, and the maximum rotation angle of the wheel driven by the steering system 1 in the counterclockwise direction is the sum of the third angle and the fourth angle.

[0133] It can be understood that, with the initial position angle of the wheel as 0 and the clockwise rotation angle as positive, the steering system 1 drives the wheel in an angle range from the sum of the third angle and the fourth angle taking a negative value to the sum of the first angle and the second angle taking a positive value.

[0134] It should be noted that since the secondary steering system 1 is driven by the torque of the wheels, there is no need to add components for driving the secondary steering system 1 to rotate. The steering angle of the secondary steering system 1 can be adjusted by the torque of the wheels to increase the maximum steering angle of the wheels. It is suitable for any form of suspension and steering gear, and has a wider range of applications.

[0135] According to a third aspect of the present disclosure, a vehicle is provided, which includes a steering knuckle assembly according to any of the above embodiments, or includes a steering system 1 according to any of the above embodiments. The vehicle has all the beneficial effects of the steering knuckle assembly or the steering system 1 according to any of the embodiments, which will not be described in detail in the present disclosure.

[0136] In one embodiment, there are multiple wheels; wherein, when the vehicle turns, the axes of the multiple wheels intersect at one point.

[0137] It can be understood that when the vehicle turns, the axes of multiple wheels intersect at one point, so that all wheels are in a rolling state, reducing the wear between the wheels and the ground.

[0138] In one embodiment, there are multiple wheels; in two wheels facing each other along the width direction of the vehicle body, each steering knuckle assembly is suitable for driving the corresponding wheel to deflect so that the deflection directions of the two wheels are opposite.

[0139] It can be understood that each steering knuckle assembly is suitable for driving the corresponding wheel to deflect so that the deflection directions of the two wheels are opposite, thereby actively adjusting the toe angle of the four-wheel alignment.

[0140] In one embodiment, when the vehicle is in a braking state, in two wheels that are opposite to each other along the width direction of the vehicle body, each steering knuckle assembly is suitable for driving the corresponding wheel to deflect so that the deflection directions of the two wheels are opposite.

[0141] In one embodiment, the inner steering knuckle 2 is included in a primary steering system, and the outer steering knuckle 3 is included in a secondary steering system; wherein, among the two wheels opposite to each other along the width direction of the vehicle body, when the primary steering system is in a non-working state, the secondary steering system is suitable for driving the corresponding wheel to deflect so that the deflection directions of the two wheels are opposite.

[0142] It can be understood that the deflection directions of the two wheels are opposite, so that the wheels are turned to the extreme "inward-toed" or "outward-toed" state to achieve emergency braking.

[0143] The vehicle may be a fuel vehicle, a plug-in hybrid vehicle, a new energy vehicle, etc., and the present disclosure does not make any specific limitation on this.

[0144] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0145] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0146] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0147] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A steering knuckle assembly, characterized in that: include: An inner steering knuckle (2) adapted to connect the vehicle body and the wheel to adjust the steering angle of the wheel relative to the vehicle body; as well as An outer steering knuckle (3) connected to the inner steering knuckle (2) and suitable for connecting to the wheel; The outer steering knuckle (3) is configured to be movable relative to the inner steering knuckle (2) to adjust the steering angle of the wheel.

2. The steering knuckle assembly according to claim 1, characterized in that: The outer steering knuckle (3) is rotatably connected to the inner steering knuckle (2).

3. The steering knuckle assembly according to claim 1, characterized in that: The change in the torque of the wheel can drive the outer steering knuckle (2) to rotate relative to the inner steering knuckle (3) to change the steering angle of the wheel.

4. The steering knuckle assembly according to claim 1, characterized in that: The wheel center of the wheel and the rotation axis of the outer steering knuckle are arranged in a staggered manner.

5. The steering knuckle assembly according to claim 1, characterized in that: It also comprises a limiting assembly (4), which is connected to the outer steering knuckle (3) and the inner steering knuckle (2) to fix or change the relative position of the outer steering knuckle (3) and the inner steering knuckle (2).

6. The steering knuckle assembly according to claim 5, characterized in that: The limiting assembly (4) comprises a first limiting portion (41) and a second limiting portion (42), wherein the first limiting portion (41) and the second limiting portion (42) are connected between the outer steering knuckle (3) and the inner steering knuckle (2), and the first limiting portion (41) and the second limiting portion (42) are capable of relative movement, so that the relative positions of the outer steering knuckle (3) and the inner steering knuckle (2) are changed.

7. The steering knuckle assembly according to claim 6, characterized in that: The second limiting portion (42) is provided with a containing cavity, and the first limiting portion (41) is movably installed in the containing cavity to divide the containing cavity into a first sub-cavity (43) and a second sub-cavity (44); wherein the first sub-cavity (43) and the second sub-cavity (44) are suitable for containing a medium, and the medium is suitable for controlling the relative movement between the first limiting portion and the second limiting portion.

8. The steering knuckle assembly according to claim 7, characterized in that: The limiting assembly (4) further comprises a valve (46), and the second limiting portion (42) is further provided with a channel, wherein the channel is connected to the first sub-cavity (43) and the second sub-cavity (44); wherein a valve (46) is provided in the channel, and the valve (46) is suitable for allowing or preventing the medium from flowing between the first sub-cavity (43) and the second sub-cavity (44) through the channel, so as to control the relative movement between the first limiting portion (41) and the second limiting portion (42).

9. The steering knuckle assembly according to claim 6, characterized in that: The first limiting portion (41) is movably mounted in the second limiting portion (42).

10. The steering knuckle assembly according to claim 6, characterized in that: The first limiting portion (41) is rotatably mounted in the second limiting portion (42).

11. The steering knuckle assembly according to claim 6, characterized in that: The first limiting portion (41) is integrally arranged with the outer steering knuckle (3), and the second limiting portion (42) is integrally arranged with the inner steering knuckle (2).

12. The steering knuckle assembly according to claim 1, characterized in that: One of the inner steering knuckle (2) and the outer steering knuckle (3) is provided with a connecting portion, and the other of the inner steering knuckle (2) and the outer steering knuckle (3) is provided with a matching portion, and the connecting portion cooperates with the matching portion to enable the inner steering knuckle (2) and the outer steering knuckle (3) to be rotationally connected.

13. The steering knuckle assembly according to claim 10, characterized in that: The inner steering knuckle is provided with a rotation hole, and the outer steering knuckle is provided with a rotation shaft. The rotation hole cooperates with the rotation shaft so that the inner steering knuckle is rotatably connected with the outer steering knuckle.

14. The steering knuckle assembly according to claim 1, characterized in that: It also comprises a brake housing (34), wherein the brake housing (34) is integrated with the outer steering knuckle (3).

15. A steering system (1), characterized in that: Comprising a steering knuckle assembly as claimed in any one of claims 1 to 14.

16. The steering system (1) according to claim 15, characterized in that The steering system (1) comprises a primary steering system and a secondary steering system, the primary steering system comprises the inner steering knuckle (2), the secondary steering system comprises the outer steering knuckle (3), and the primary steering system and the secondary steering system are capable of independently adjusting the steering angle of the wheel.

17. The steering system (1) according to claim 16, characterized in that The primary steering system further comprises a steering gear assembly (5), wherein the steering gear assembly (5) comprises a steering tie rod (51) for driving the inner steering knuckle (2) to rotate, and the steering tie rod (51) is fixedly connected to the inner steering knuckle (2).

18. The steering system (1) according to claim 17, characterized in that It also comprises a wheel hub unit, the outer steering knuckle (3) comprises a mounting hole (33), and the mounting hole (33) is used to mount the wheel hub unit.

19. A vehicle, characterized in that: It comprises at least one steering knuckle assembly according to any one of claims 1 to 14, or at least one steering system (1) according to any one of claims 15 to 18.

20. The vehicle according to claim 19, characterized in that There are multiple wheels; when the vehicle turns, the axes of the multiple wheels intersect at one point.

21. The vehicle according to claim 19, characterized in that There are multiple wheels; in two wheels that are opposite to each other along the width direction of the vehicle body, each steering knuckle assembly is suitable for driving the corresponding wheel to deflect so that the deflection directions of the two wheels are opposite.

22. The vehicle according to claim 21, characterized in that When the vehicle is in a braking state, among the two wheels facing each other along the width direction of the vehicle body, each steering knuckle assembly is suitable for driving the corresponding wheel to deflect so that the deflection directions of the two wheels are opposite.

23. The vehicle according to claim 21, characterized in that The inner steering knuckle (2) is included in the primary steering system, and the outer steering knuckle (3) is included in the secondary steering system; wherein, among the two wheels opposite to each other along the width direction of the vehicle body, when the primary steering system is in a non-working state, the secondary steering system is suitable for driving the corresponding wheels to deflect so that the deflection directions of the two wheels are opposite.

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