Double wishbone independent suspension system and vehicle

Abstract

This invention belongs to the field of vehicle suspension technology and discloses a double wishbone independent suspension system and a vehicle. The double wishbone independent suspension system includes a frame assembly and a steering mechanism. The steering mechanism includes a steering knuckle, a shock absorber assembly, an upper control arm assembly, an air brake disc assembly, a lower control arm assembly, and a rack and pinion steering assembly. The shock absorber assembly is located on the side of the frame assembly; the upper control arm assembly is connected to the upper part of the shock absorber assembly and the steering knuckle; the air brake disc assembly is spaced behind the shock absorber assembly in a first direction; the lower control arm assembly is connected to the frame assembly and the steering knuckle, and the lower part of the shock absorber assembly is connected to the lower control arm assembly; the tie rod of the rack and pinion steering assembly is located below the lower control arm assembly and connected to the steering knuckle. This double wishbone independent suspension system can improve the vehicle's suspension comfort and handling stability, and can ensure the vehicle's braking reliability.

Description

Technical Field

[0001] This invention relates to the field of vehicle suspension technology, and more particularly to a double wishbone independent suspension system and vehicle. Background Technology

[0002] The front suspension of light-duty trucks widely uses a non-independent suspension structure. Non-independent suspensions employ a solid front axle, with both wheels fixed to the chassis along with the axle via leaf springs. Because the wheels cannot move independently, this results in poor comfort and handling stability. Therefore, double wishbone independent suspensions are increasingly being used in light-duty trucks.

[0003] The vehicle's braking system uses either hydraulic disc brakes or air disc brakes. Hydraulic disc brakes have a slightly slower response time, provide smoother braking, and have less braking force. They are also simpler in structure and require less space for installation, needing only a master cylinder, wheel cylinders, hydraulic reservoirs, and connecting lines, without any other auxiliary equipment. However, in heavy-duty vehicles such as light trucks, air disc brakes, which offer faster response and greater braking force, are required.

[0004] However, because air disc brakes require more installation space, there is a structural interference problem between the existing double wishbone independent suspension and air disc brakes. Therefore, air disc brakes cannot be used on light trucks equipped with double wishbone independent suspensions. As a result, it is impossible to simultaneously achieve the goals of improving the comfort and handling stability of the vehicle suspension and ensuring the reliability of the brakes.

[0005] Therefore, there is an urgent need for a double wishbone independent suspension system and vehicle to solve the above problems. Summary of the Invention

[0006] According to one aspect of the present invention, the object is to provide a double wishbone independent suspension system that can improve the suspension comfort and handling stability of a vehicle and ensure the braking reliability of the vehicle.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] The double wishbone independent suspension system includes:

[0009] Chassis assembly;

[0010] Steering mechanism, the steering mechanism comprising:

[0011] Steering knuckle;

[0012] A shock absorber assembly, wherein the shock absorber assembly is disposed on the side of the frame assembly;

[0013] Upper control arm assembly, the upper control arm assembly being connected to the upper part of the shock absorber assembly and the steering knuckle;

[0014] An air brake disc brake assembly is provided at a distance from the rear of the shock absorber assembly in a first direction.

[0015] The lower control arm assembly is connected to the frame assembly and the steering knuckle, and the lower part of the shock absorber assembly is connected to the lower control arm assembly;

[0016] A rack and pinion steering assembly, wherein the tie rod of the rack and pinion steering assembly is located below the lower control arm assembly and connected to the steering knuckle.

[0017] As a preferred embodiment of the double wishbone independent suspension system provided by the present invention, the frame assembly includes a main frame, a subframe, and a shock absorber bracket. The main frame is connected above the subframe, the shock absorber assembly is mounted on the shock absorber bracket, the shock absorber bracket is connected to the main frame, and a shim is sandwiched between the two. The lower control arm assembly is connected to the subframe.

[0018] As a preferred embodiment of the double wishbone independent suspension system provided by the present invention, the shock absorber assembly includes a coil spring and a shock absorber body. The upper control arm assembly is connected to the shock absorber bracket, and the shock absorber body is connected to the shock absorber bracket. The coil spring is coaxially sleeved outside the shock absorber body. The shock absorber body includes an oil reservoir and a dust cover. The oil reservoir can extend and retract within the dust cover.

[0019] As a preferred embodiment of the double wishbone independent suspension system provided by the present invention, the shock absorber assembly further includes an upper spring support plate and a lower spring support plate. The upper spring support plate is disposed at the end of the dust cover away from the oil reservoir, and the lower spring support plate is arranged around the periphery of the oil reservoir. The coil spring is disposed between the upper spring support plate and the lower spring support plate. The end of the oil reservoir away from the dust cover can be connected to the lower control arm assembly.

[0020] As a preferred embodiment of the double wishbone independent suspension system provided by the present invention, a connecting component is provided at the end of the oil reservoir away from the dust cover. The connecting component includes a connecting ball and a connecting pin. The connecting pin is located on the side of the connecting ball and connected to the upper end face of the lower control arm assembly. The lower control arm assembly has a connecting countersunk hole corresponding to the position of the connecting ball, and the connecting ball is embedded in the connecting countersunk hole.

[0021] As a preferred embodiment of the double wishbone independent suspension system provided by the present invention, the upper end face of the lower control arm assembly is provided with a limiting protrusion, which is located on the opening side of the connecting countersunk hole and can abut against the connecting pin.

[0022] As a preferred embodiment of the double wishbone independent suspension system provided by the present invention, the upper control arm assembly includes a C-shaped upper control arm body, and a bushing is provided at each end of the C-shaped upper control arm body. The bushing is adjustablely connected to the shock absorber bracket by adjusting the position of the component, and the steering knuckle is movably connected to the C-shaped upper control arm body.

[0023] As a preferred embodiment of the double wishbone independent suspension system provided by the present invention, the adjustment assembly includes flange bolts and adjusting shims that are fixedly connected to each other.

[0024] The shock absorber bracket has a first waist-shaped groove on the side opposite to the connection position of the bushing, and a first waist-shaped through hole is formed at the geometric center of the first waist-shaped groove. The flange bolt passes through the first waist-shaped through hole and the bushing. The adjusting shim is movably embedded in the first waist-shaped groove. The long axis of the first waist-shaped groove is parallel to the vertical direction, and the long axis of the first waist-shaped through hole is perpendicular to the vertical direction. The adjusting shim rotates in the first waist-shaped groove, causing the flange bolt to move along the long axis of the first waist-shaped through hole.

[0025] As a preferred embodiment of the double wishbone independent suspension system provided by the present invention, the shock absorber bracket is provided with a buffer block corresponding to the position of the lower control arm assembly, and the buffer block is located in front of the shock absorber body and the coil spring in a first direction.

[0026] As a preferred embodiment of the double wishbone independent suspension system provided by the present invention, the lower control arm assembly has a ball joint connecting groove, and the movable ball joint of the steering knuckle is connected to the ball joint connecting groove.

[0027] According to another aspect of the present invention, an object is to provide a vehicle comprising a double wishbone independent suspension system as described in any of the above embodiments, the frame assembly being arranged along the width direction of the vehicle, and two sets of linked steering mechanisms being respectively provided at both ends of the frame assembly.

[0028] The beneficial effects of this invention are:

[0029] The double wishbone independent suspension system provided by this invention includes a frame assembly and a steering mechanism. The steering mechanism includes a steering knuckle, a shock absorber assembly, an upper control arm assembly, an air disc brake assembly, a lower control arm assembly, and a rack and pinion steering assembly. The shock absorber assembly is located on the side of the frame assembly; the upper control arm assembly is connected to the upper part of the shock absorber assembly and the steering knuckle; the air disc brake assembly is spaced behind the shock absorber assembly in a first direction; the lower control arm assembly is connected to the frame assembly and the steering knuckle, and the lower part of the shock absorber assembly is connected to the lower control arm assembly; the tie rod of the rack and pinion steering assembly is located below the lower control arm assembly and connected to the steering knuckle. In other words, the steering mechanism, through the rational arrangement of the steering knuckle, shock absorber assembly, upper control arm assembly, lower control arm assembly, and rack and pinion steering assembly, provides installation space for the air disc brake assembly. A double wishbone independent suspension system integrating air disc brake assemblies can improve vehicle comfort and handling stability. Furthermore, the integrated air disc brake assembly offers the advantage of high braking reliability. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the double wishbone independent suspension system provided in an embodiment of the present invention;

[0031] Figure 2 yes Figure 1 A magnified view of a section marked A in the middle;

[0032] Figure 3 This is a schematic diagram of the upper control arm assembly provided in an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of the shock absorber bracket and adjustment assembly provided in an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of the adjustment component provided in an embodiment of the present invention;

[0035] Figure 6 This is a partial structural schematic diagram of the shock absorber bracket provided in an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the structure of the vibration damper assembly provided in an embodiment of the present invention;

[0037] Figure 8 This is an axial sectional view of the shock absorber assembly provided in an embodiment of the present invention;

[0038] Figure 9 This is a schematic diagram of the lower control arm assembly provided in an embodiment of the present invention;

[0039] Figure 10This is a bottom view of the lower control arm assembly provided in an embodiment of the present invention;

[0040] Figure 11 This is a schematic diagram of the arrangement of the air brake disc brake assembly and steering knuckle provided in an embodiment of the present invention.

[0041] In the picture:

[0042] 100. Chassis assembly; 110. Main frame; 120. Subframe; 130. Shim; 140. Shock absorber bracket; 141. First waist-shaped groove; 142. First waist-shaped through hole; 143. Buffer block;

[0043] 200. Steering knuckle;

[0044] 300. Shock absorber assembly; 320. Coil spring; 330. Shock absorber body; 331. Oil reservoir; 332. Dust cover; 340. Upper spring support plate; 341. Projection weld bolt; 350. Lower spring support plate; 360. Connecting component; 361. Connecting ball joint; 362. Connecting pin; 370. Bushing assembly; 371. Liner; 372. Liner sleeve;

[0045] 400. Upper control arm assembly; 410. C-shaped upper control arm body; 420. Bushing;

[0046] 500. Air disc brake assembly;

[0047] 600. Lower control arm assembly; 610. Connecting countersunk hole; 620. Limiting protrusion; 630. Ball joint connecting groove;

[0048] 700, tie rod;

[0049] 800, Adjustment component; 810, Flange bolt; 811, Connecting bolt; 811a, Threaded section; 811b, Intermediate section; 811c, Head section; 811d, Limiting groove; 812, Bolt washer; 820, Adjusting shim; 821, Eccentric through hole; 830, Nut. Detailed Implementation

[0050] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0051] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0052] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0054] This embodiment provides a double wishbone independent suspension and a vehicle. The vehicle includes the double wishbone independent suspension provided in this embodiment.

[0055] Figure 1 This diagram illustrates the structure of a double wishbone independent suspension system provided in an embodiment of the present invention. (Refer to...) Figure 1 The double wishbone independent suspension system of this embodiment includes a frame assembly 100 and a steering mechanism. Specifically, the frame assembly 100 is arranged along the width direction of the vehicle, and two sets of linked steering mechanisms are respectively provided at both ends of the frame assembly 100. The wheels on both sides of the vehicle in the width direction are respectively connected to the two sets of steering mechanisms.

[0056] Specifically, continue to refer to Figure 1 The steering mechanism includes a steering knuckle 200, a shock absorber assembly 300, an upper control arm assembly 400, an air brake disc brake assembly 500, a lower control arm assembly 600, and a rack and pinion steering assembly. Two rack and pinion steering assemblies on the same frame assembly 100 are interconnected to achieve linkage between the two sets of the steering mechanism.

[0057] More specifically, the chassis assembly 100 includes a main frame 110, a subframe 120, and a shock absorber bracket 140. The main frame 110 is connected above the subframe 120, the shock absorber bracket 140 is mounted on the side of the main frame 110, and a shim 130 is sandwiched between the shock absorber bracket 140 and the main frame 110. The lower control arm assembly 600 is connected to the subframe 120. The shim 130 provides cushioning between the shock absorber assembly 300 and the main frame 110, preventing rigid collisions or even damage between the two during vehicle operation.

[0058] More specifically, the shock absorber assembly 300 is disposed on the side of the frame assembly 100. The upper control arm assembly is connected to the upper part of the shock absorber assembly 300 and the steering knuckle 200. The air brake disc assembly 500 is spaced behind the shock absorber assembly 300 in a first direction, and is located behind the front axle center plane. The front axle center plane is the plane containing the line connecting the centers of the two front wheels when both are parallel to the length direction of the vehicle, and is perpendicular to the horizontal plane. The lower control arm assembly 600 is connected to the frame assembly 100 and the steering knuckle 200, and the lower part of the shock absorber assembly 300 is connected to the lower control arm assembly 600. The tie rod 700 of the rack and pinion steering assembly is located below the lower control arm assembly 600 and connected to the steering knuckle 200. In other words, the steering mechanism, through the rational arrangement of the steering knuckle 200, shock absorber assembly 300, upper control arm assembly 400, lower control arm assembly 600, and rack and pinion steering assembly, provides installation space for the air brake disc brake assembly 500. Furthermore, the double wishbone independent suspension system integrating the air brake disc brake assembly 500 enhances vehicle comfort and handling stability, and the air brake disc brake assembly 500 boasts high braking reliability, thus improving vehicle safety.

[0059] Figure 2 Show Figure 1 A magnified view of a section marked A in the middle; Figure 3 This diagram shows a structural schematic of the upper control arm assembly provided in an embodiment of the present invention. Figure 4 A schematic diagram of the structure of the shock absorber bracket and adjustment assembly provided in an embodiment of the present invention is shown. (Refer to...) Figures 1-4 The upper control arm assembly 400 is connected to the upper part of the shock absorber bracket 140. The upper control arm assembly 400 includes a C-shaped upper control arm body 410, with a bushing 420 at each end. The bushing 420 is adjustablely connected to the shock absorber bracket 140 via an adjusting assembly 800. The steering knuckle 200 is movably connected to the C-shaped upper control arm body 410.

[0060] Specifically, Figure 5 This diagram illustrates the structure of the adjustment component provided in an embodiment of the present invention. Figure 6 This diagram illustrates a partial structural schematic of the vibration damper bracket provided in an embodiment of the present invention. (Refer to...) Figure 4 and Figure 5 The adjustment assembly 800 includes flange bolts 810 and adjusting shims 820 that are fixed to each other.

[0061] More specifically, the aforementioned flange bolt 810 includes a connecting bolt 811 and a bolt washer 812 that are press-fitted together with an interference fit. The connecting bolt 811 is sequentially divided into a threaded section 811a, a middle section 811b, and a head section 811c along its axial direction. The bolt washer 812 is press-fitted onto the head section 811c, and the adjusting shim 820 is sleeved on the outside of the threaded section 811a. The flange bolt 810 can penetrate the damper bracket 140 at positions corresponding to the two bushings 420, and both bushings 420 are threaded onto the flange bolt 810.

[0062] More specifically, the shock absorber bracket 140 has a first oblong groove 141 and a second oblong groove (not shown) on the side opposite to the connection position of the two bushings 420. A first oblong through hole 142 is formed at the geometric center of the first oblong groove 141, and similarly, a second oblong through hole (not shown) is formed at the geometric center of the second oblong groove. The flange bolt 810 passes through the first oblong through hole 142, one bushing 420, the other bushing 420, and the second oblong through hole in sequence. Nuts 830 are provided at both ends of the flange bolt 810 for fixation. At this time, the adjusting shim 820 is movably fitted into the first oblong groove 141, and the bolt washer 812 is movably fitted into the second oblong groove.

[0063] The structure and shape of the combination of the second waist-shaped groove and the second waist-shaped through hole are the same as the structure and shape of the combination of the first waist-shaped groove 141 and the first waist-shaped through hole 142. This embodiment is described using the first waist-shaped groove 141 and the first waist-shaped through hole 142 as examples.

[0064] Specifically, refer to Figure 6 The long axis of the first waist-shaped groove 141 is parallel to the vertical direction, and the long axis of the first waist-shaped through hole 142 is perpendicular to the vertical direction. The adjusting shim 820 rotates in the first waist-shaped groove 141, which can drive the flange bolt 810 to move along the long axis of the first waist-shaped through hole 142 in the first waist-shaped through hole 142, thereby driving the upper control arm assembly 400 to move and adjust its position.

[0065] More specifically, the center distance of the first waist-shaped groove 141 is defined as D1, and the center distance of the first waist-shaped through hole 142 is defined as D2. In this embodiment, D1 equals D2. The adjusting shim 820 has an eccentric through hole 821, and the eccentricity between the eccentric through hole 821 and the outer circle of the adjusting shim 820 is defined as D3. D3 is equal to half of D1 and half of D2.

[0066] More specifically, the inner wall of the eccentric through-hole 821 is provided with a protruding structure, which protrudes from the inner wall of the eccentric through-hole 821 toward the central axis of the eccentric through-hole 821. Correspondingly, the threaded segment 811a has a limiting groove 811d along its axial direction, and the protruding structure can slide in the limiting groove 811d. That is, the adjusting shim 820 can only be fitted onto the threaded segment 811a when the protruding structure is aligned with the limiting groove 811d. Through the above arrangement, the installation of the adjusting shim 820 and the threaded segment 811a can be guided, and the rotation of the adjusting shim 820 relative to the threaded segment 811a can be prevented.

[0067] Figure 7 This diagram shows a structural schematic of the vibration damper assembly provided in an embodiment of the present invention; Figure 8 An axial sectional view of a vibration damper assembly provided in an embodiment of the present invention is shown. (Refer to...) Figure 1 , Figure 7 and Figure 8 The shock absorber assembly 300 includes a coil spring 320 and a shock absorber body 330.

[0068] Specifically, the top of the shock absorber body 330 is connected to the upper part of the shock absorber bracket 140, and the coil spring 320 is coaxially sleeved on the outside of the shock absorber body 330. The bottom of the shock absorber body 330 is connected to the lower control arm assembly 600.

[0069] More specifically, the shock absorber body 330 includes an oil reservoir 331 and a dust cover 332. The oil reservoir 331 is telescopic within the dust cover 332. The bottom end of the oil reservoir 331 is connected to the upper end face of the lower control arm assembly 600, and the top end of the dust cover 332 is connected to the shock absorber bracket 140.

[0070] More specifically, the shock absorber assembly 300 also includes an upper spring support plate 340 and a lower spring support plate 350. The upper spring support plate 340 is located at the top of the dust cover 332 away from the oil reservoir 331, and the lower spring support plate 350 is circumferentially welded to the periphery of the oil reservoir 331 and close to the bottom end of the oil reservoir 331. The coil spring 320 is disposed between the upper spring support plate 340 and the lower spring support plate 350, that is, the top and bottom of the coil spring 320 abut against the upper spring support plate 340 and the lower spring support plate 350, respectively.

[0071] Preferably, three projection-welded bolts 341 are evenly distributed on the upper support plate 340 of the spring. A set of padding assemblies 370 are respectively provided on the upper and lower end faces of the center position of the upper support plate 340 of the spring. The padding assembly includes two pads 371 and a sleeve 372. The two pads 371 are arranged parallel to each other and spaced apart. The sleeve 372 is sandwiched between the two pads 371. Bolts are sequentially inserted into one padding assembly 370, the upper support plate 340 of the spring, and the other padding assembly 370, and are fixed to the top of the dust cover 332.

[0072] More specifically, continue to refer to Figure 1 and Figure 7 The oil reservoir 331 has a connecting component 360 at one end away from the dust cover 332. The connecting component 360 includes a connecting ball head 361 and a connecting pin 362. The connecting pin 362 is located on the side of the connecting ball head 361 and can be connected to the upper end face of the lower control arm assembly 600 by a connecting bolt.

[0073] Figure 9 This diagram illustrates the structure of the lower control arm assembly provided in an embodiment of the present invention. (Refer to...) Figure 1 , Figure 7 and Figure 9 The lower control arm assembly 600 has a countersunk hole 610 corresponding to the position of the connecting ball head 361. The connecting ball head 361 has a cylindrical structure, and the connecting countersunk hole 610 has a C-shaped structure, so that the connecting ball head 361 can be embedded in the connecting countersunk hole 610.

[0074] Specifically, the upper end face of the lower control arm assembly 600 is provided with two limiting protrusions 620, which are spaced apart along a first direction on the opening side of the connecting countersunk hole 610. The height of the limiting protrusion 620 is greater than half the height of the connecting pin 362. The limiting protrusion 620 can abut against the connecting pin 362, preventing the shock absorber assembly 300 from sliding relative to the lower control arm assembly 600 towards the wheel after the connecting bolts loosen, thus preventing the vehicle from posing a danger.

[0075] Figure 10 This is a bottom view of the lower control arm assembly provided in an embodiment of the present invention, with reference to... Figure 1 and Figure 10 The lower control arm assembly 600 has a ball joint connection groove 630 on its bottom end face, and the movable ball joint of the steering knuckle 200 is connected to the ball joint connection groove 630. This arrangement achieves the connection between the lower control arm assembly 600 and the steering knuckle 200. The ball joint connection groove 630 is a stepped cylindrical hole, capable of transmitting the load of the movable ball joint.

[0076] Continue to refer to Figure 1The shock absorber bracket 140 is provided with a buffer block 143 corresponding to the position of the lower control arm assembly 600. The buffer block 143 is located in front of the shock absorber body 330 and the coil spring 320 in a first direction, and the buffer block 143 is located in front of the front axle center plane. The buffer block 143 can prevent rigid collision between the shock absorber body 330 and the lower control arm assembly 600 during the vertical travel of the wheel.

[0077] Figure 11 This diagram illustrates the arrangement of the air brake disc brake assembly and steering knuckle provided in an embodiment of the present invention. (Refer to...) Figure 1 and Figure 11 The angle α between the center plane of the air brake disc brake assembly 500 and the kingpin center line of the steering knuckle 200 is 20° to 90°.

[0078] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A double wishbone independent suspension system, characterised in that, Comprise: Frame assembly (100); Steering mechanism, the steering mechanism comprises: Knuckle (200); Shock absorber assembly (300), the shock absorber assembly (300) is provided in the side of the frame assembly (100); Upper control arm assembly (400), the upper control arm assembly is connected to the upper portion of the shock absorber assembly (300) and the knuckle (200); Air brake disc brake assembly (500), the air brake disc brake assembly (500) is spaced apart in the rear of the shock absorber assembly (300) in the first direction; Lower control arm assembly (600), the lower control arm assembly (600) is connected to the frame assembly (100) and the knuckle (200), and the lower portion of the shock absorber assembly (300) is connected to the lower control arm assembly (600); Rack and pinion steering gear assembly, the tie rod (700) of the rack and pinion steering gear assembly is below the lower control arm assembly (600) and is connected to the knuckle (200); The frame assembly (100) comprises a main frame (110), a subframe (120) and a shock absorber support (140), the main frame (110) is connected to the upper portion of the subframe (120), the shock absorber assembly (300) is installed on the shock absorber support (140), the shock absorber support (140) is connected to the main frame (110), and a gasket (130) is clamped between the main frame (110) and the shock absorber support (140), and the lower control arm assembly (600) is connected to the subframe (120); The shock absorber assembly (300) comprises a coil spring (320) and a shock absorber body (330), the upper control arm assembly (400) is connected to the shock absorber support (140), the shock absorber body (330) is connected to the shock absorber support (140), the coil spring (320) is coaxially sleeved outside the shock absorber body (330), the shock absorber body (330) comprises an oil storage cylinder (331) and a dust cover (332), and the oil storage cylinder (331) can be telescopic in the dust cover (332); The end of the oil storage cylinder (331) away from the dust cover (332) is provided with a connecting component (360), the connecting component (360) comprises a connecting ball head (361) and a connecting pin shaft (362), the connecting pin shaft (362) is arranged on the side of the connecting ball head (361) and is connected to the upper end surface of the lower control arm assembly (600), the lower control arm assembly (600) is provided with a connecting counterbore (610) corresponding to the position of the connecting ball head (361), and the connecting ball head (361) is embedded in the connecting counterbore (610).

2. The double wishbone independent suspension system of claim 1, wherein, The shock absorber assembly (300) further comprises a spring upper support disc (340) and a spring lower support disc (350), the spring upper support disc (340) is arranged at one end of the dust cover (332) away from the oil storage cylinder (331), the spring lower support disc (350) is arranged around the side of the oil storage cylinder (331), the coil spring (320) is arranged between the spring upper support disc (340) and the spring lower support disc (350), and one end of the oil storage cylinder (331) away from the dust cover (332) can be connected to the lower control arm assembly (600).

3. The double wishbone independent suspension system of claim 1, wherein, The upper end surface of the lower control arm assembly (600) is provided with a limiting protrusion (620), the limiting protrusion (620) is located at the opening side of the connecting counterbore (610), and can abut against the connecting pin shaft (362).

4. The double wishbone independent suspension system of claim 1, wherein, The upper control arm assembly (400) comprises a C-shaped upper control arm body (410), one bushing (420) is arranged at each end of the C-shaped upper control arm body (410), the bushing (420) is adjustably connected to the shock absorber support (140) through an adjusting assembly (800), and the knuckle (200) is movably connected to the C-shaped upper control arm body (410).

5. The double wishbone independent suspension system of claim 4, wherein, The adjusting assembly (800) comprises a flange bolt (810) and an adjusting washer (820) fixed to each other. The shock absorber support (140) is provided with a first waist-shaped groove (141) on the side away from the connecting position of the bushing (420), a first waist-shaped via (142) is arranged at the geometric center of the first waist-shaped groove (141), the flange bolt (810) penetrates the first waist-shaped via (142) and the bushing (420), the adjusting washer (820) is movably arranged in the first waist-shaped groove (141), the long axis direction of the first waist-shaped groove (141) is parallel to the vertical direction, the long axis direction of the first waist-shaped via (142) is perpendicular to the vertical direction, the adjusting washer (820) rotates in the first waist-shaped groove (141), and drives the flange bolt (810) to move in the first waist-shaped via (142) along the long axis of the first waist-shaped via (142).

6. The double wishbone independent suspension system of claim 1, wherein, The shock absorber support (140) is provided with a buffer block (143) corresponding to the position of the lower control arm assembly (600), and the buffer block (143) is located in front of the shock absorber body (330) and the coil spring (320) in the first direction.

7. The double wishbone independent suspension system of claim 1, wherein, The lower control arm assembly (600) is provided with a ball head connecting groove (630), and the movable ball head of the knuckle (200) is connected in the ball head connecting groove (630).

8. Vehicle, characterized in that The double wishbone independent suspension system comprises the double wishbone independent suspension system according to any one of claims 1-7, the vehicle frame assembly (100) is arranged along the width direction of the vehicle, and two groups of the linkage steering mechanisms are arranged at two ends of the vehicle frame assembly (100).

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