CN117656726A - Suspension system and automobile - Google Patents

Abstract

The application provides a suspension system and an automobile, wherein the suspension system comprises an auxiliary frame and a wheel bracket, and is characterized by further comprising a first swing arm, wherein the outer end of the first swing arm is connected with the auxiliary frame, the inner end of the first swing arm is connected with the wheel bracket, the first swing arm comprises a swing arm main body, and the swing arm main body is made of a composite material; at least part of the swing arm main body forms an included angle with the horizontal direction. The swing arm main body of the first swing arm is made of a composite material, has certain elasticity, can deform along with the jumping of the suspension system, and plays a role of a spring; and at least part of the swing arm main body of the first swing arm has an included angle with the horizontal direction, and the first swing arm is obliquely arranged relative to the horizontal plane, namely, is obliquely arranged relative to the ground, so that the first swing arm is equivalent to a four-point control arm, can bear the stress from all directions of wheels and control the toe-in of the wheels, and the suspension system has simpler structure, compact structure and easy whole vehicle arrangement.

Description

Suspension system and automobile

Technical Field

The invention relates to the technical field of vehicles, in particular to a suspension system and an automobile.

Background

The automobile suspension has great influence on the performances such as light weight, smoothness, stability in operation, NVH and the like of the automobile, and determines the space and arrangement of an oil tank of the fuel and the hybrid electric automobile, the volume and arrangement of batteries of the pure electric automobile and the hybrid electric automobile and the arrangement of a driving motor of the pure electric automobile and the hybrid electric automobile. The traditional automobile suspension is made of steel and aluminum alloy materials, has the forms of Macpherson, double fork arms, torsion beams, multiple connecting rods and the like, and most of suspension forms are provided with parts such as swing arms, shock absorbers and spiral springs, and the structure is complex.

Disclosure of Invention

The application provides a suspension system, can reduce spare part, and the structure is comparatively simple.

The suspension system comprises an auxiliary frame and a wheel bracket, and is characterized by further comprising a first swing arm, wherein the outer end of the first swing arm is connected with the auxiliary frame, the inner end of the first swing arm is connected with the wheel bracket, the first swing arm comprises a swing arm main body, and the swing arm main body is made of a composite material; at least part of the swing arm main body forms an included angle with the horizontal direction.

In a specific embodiment, the swing arm body gradually inclines upwards from outside to inside, and the upper surface and the lower surface of the swing arm body are curved surfaces; the thickness of the swing arm main body is gradually increased from outside to inside.

In a specific embodiment, the swing arm body is provided with a first connecting end and a second connecting end, the first swing arm further comprises a first connecting piece connected with the first connecting end and a second connecting piece connected with the second connecting end, and the first swing arm is connected with the wheel support and the auxiliary frame through the first connecting piece and the second connecting piece respectively.

In one embodiment, the first connector is provided with a clamping end for clamping the first connector end, and the clamping end and the first connector end are fastened by a first fastener.

In one embodiment, the first connecting member further includes a bushing press-in end, the bushing press-in end is press-fitted with a bushing, and the first connecting member is connected to the wheel bracket by a bolt inserted into the bushing.

In one embodiment, the second connector comprises two oppositely disposed connector plate structures, and the second connector end is located between the two connector plate structures and is fastened by a second fastener.

In one specific embodiment, the second fastener is a bolt, and the second fastener is simultaneously inserted into the connection hole of the subframe to fix the second connection end, the connection plate structure to the subframe.

In one embodiment, the vehicle further comprises a third fastener, wherein the third fastener fixes the connecting plate structure and the auxiliary frame.

In a specific embodiment, the connecting plate structure is provided with a first boss, the first boss protrudes from two side surfaces of the connecting plate structure, and the height of the first boss protruding from one side surface of the connecting plate structure, which is close to the second connecting end, is equal to the thickness of the swing arm main body; and/or the connecting plate structure is provided with a second boss, and the second boss protrudes out of the surface of one side of the connecting plate structure away from the second connecting end;

the connecting plate structure is provided with a connecting hole penetrating through the first boss, and the second fastening piece is inserted into the connecting hole penetrating through the first boss; the connecting plate structure is further provided with a connecting hole penetrating through the second boss, and the third fastener is inserted into the connecting hole penetrating through the second boss.

In a specific embodiment, the connecting plate structure comprises a plate main body and reinforcing ribs, wherein the reinforcing ribs are arranged on one side surface of the plate main body away from the second connecting end, and the other side surface of the plate main body is attached to the second connecting end.

In a specific embodiment, a glue layer is provided between the first connecting piece and the first connecting end, and/or between the second connecting piece and the second connecting end.

In one embodiment, the first connector and/or the second connector are cast.

The application also provides an automobile, which comprises an automobile body and a suspension system connected with the automobile body, and is characterized in that the suspension system is any one of the suspension systems.

The suspension system is provided with the first swing arm, the swing arm main body of the first swing arm is made of a composite material, has certain elasticity, then forms a plate spring structure, can deform along with the jumping of the suspension system, plays a role of a spring, and meets the requirement of light weight; and at least part of the swing arm main body of the first swing arm has an included angle with the horizontal direction, and the first swing arm is obliquely arranged relative to the horizontal plane, namely obliquely arranged relative to the ground, so that the first swing arm is equivalent to a four-point control arm, can bear stress from all directions of wheels and control toe-in of the wheels, and can serve as a traditional suspension swing arm and a traditional coil spring, so that the suspension system has simpler structure, high integration level, fewer parts, compact structure, good stability and easy whole vehicle arrangement. The first swing arm made of the composite material has the advantage of light structure, can reduce the weight by 30% -45% compared with a traditional suspension system, is beneficial to improving the smoothness and the operation stability of the whole automobile, is beneficial to improving the cruising ability of the electric automobile when being applied to the electric automobile, saves space in the direction of the whole automobile X, Y, Z, and is beneficial to arrangement of large batteries, large fuel tanks, larger passenger cabins or luggage cabins of the automobile body of the electric automobile.

Drawings

FIG. 1 is a schematic view of a suspension system according to an embodiment of the present application;

FIG. 2 is a schematic view of a left side portion of the suspension system of FIG. 1;

FIG. 3 is a front view of the first swing arm position of FIG. 2;

FIG. 4 is a bottom view of FIG. 2;

FIG. 5 is a schematic view concealing the first swing arm rear bottom view of the suspension system of FIG. 4;

FIG. 6 is a schematic view of the suspension system of FIG. 4 from a rear top view;

FIG. 7 is a schematic view of a first swing arm of the suspension system of FIG. 1;

FIG. 8 is a bottom view of FIG. 7;

FIG. 9 is an exploded view of FIG. 7;

FIG. 10 is a schematic view of a leaf spring of the first swing arm of FIG. 7;

FIG. 11 is a schematic view of a first connector of the first swing arm of FIG. 7;

FIG. 12 is a schematic view of the second link of the first swing arm of FIG. 7 in a top view;

fig. 13 is a schematic view of the second connecting member of the second swing arm in fig. 7 in a bottom view.

The reference numerals in fig. 1-13 are illustrated as follows:

1-a first swing arm;

101-a swing arm body; 1011-a first connection terminal; 1011 a-first connecting holes; 1012 a-a second connection hole; 1012-a second connection;

102-a first connector; 102 a-clamping plate; 102 b-a first bushing press-in end; 102 c-a second bushing press-in end; 102 d-a third connection hole;

103-a bushing; 104-a first bolt; 105-a first nut; 106, a glue layer;

107' -a second connector; 107-connection plate structure; 107 a-plate body; 107 b-a first boss; 107 c-fifth connection holes; 107 d-second boss; 107 e-fourth connection holes; 107 f-reinforcing ribs;

108-a second bolt;

2-a wheel support;

3-a stabilizer bar;

4-a damper;

5-a second swing arm;

6-auxiliary frames; 6 a-connection point.

Detailed Description

In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Referring to fig. 1-5, fig. 1 is a schematic view of a suspension system according to an embodiment of the present application, not shown as a shock absorber or stabilizer bar; FIG. 2 is a schematic view of a left side portion of the suspension system of FIG. 1; fig. 3 is a front view of the first swing arm 1 in fig. 2, i.e. from the rear to the front; FIG. 4 is a bottom view of FIG. 2; fig. 5 is a schematic view hiding the first swing arm 1 of the suspension system of fig. 4 from the back view; fig. 6 is a schematic view of the suspension system of fig. 4 from a rear top view hidden from view of the subframe 6.

The suspension system in this embodiment includes a subframe 6, a wheel bracket 2, a shock absorber 4, a first swing arm 1, a second swing arm 5, and a stabilizer bar 3. The auxiliary frame 6 both sides are equipped with a set of wheel support 2, bumper shock absorber 4, first swing arm 1, second swing arm 5 respectively, and stabilizer bar 3 is located the front side of suspension system, and both ends are connected to the wheel support 2 of suspension system both sides, and the tip of stabilizer bar 3 can press-fit stabilizer bar bush, installs to wheel support 2 through the bolt. In addition, the bottom of the wheel bracket 2 and the bottom of the subframe 6 are connected through a first swing arm 1, specifically, the inner end of the first swing arm 1 is connected to the subframe 6, the outer end of the first swing arm 1 is connected to the wheel bracket 2, one end of a second swing arm 5 is connected to the upper end of the wheel bracket 2, the other end is connected to the subframe 6, and the second swing arm 5 is used for controlling the camber of the wheel; the two ends of the shock absorber 4 are used for connecting the wheel bracket 2 and the vehicle body, the end part of the shock absorber 4 can be provided with a shock absorber bushing which is connected with the wheel bracket 2, when the shock absorber 4 is rigidly connected with the wheel bracket 2, the second swing arm 5 is not required to be arranged, and the shock absorber 4 also has the effect of preventing the wheel from being camber.

In fig. 2, the left side of the suspension system is shown, and in addition, the directions of the sub-frames 6 near the middle are defined as the inner direction and the direction of the sub-frame 6 far from the middle are defined as the outer direction, and the left side is also the outer side and the right side is also the inner side in fig. 2.

With continued reference to fig. 7-13, fig. 7 is a schematic view of the first swing arm 1 of the suspension system of fig. 1; FIG. 8 is a bottom view of FIG. 7; FIG. 9 is an exploded view of FIG. 7; fig. 10 is a schematic view of a leaf spring of the first swing arm 1 in fig. 7; fig. 11 is a schematic view of the first connection member 102 of the first swing arm 1 in fig. 7; fig. 12 is a schematic diagram of the second connection member 107' of the first swing arm 1 in fig. 7 in a top view; fig. 13 is a schematic view of the second connecting member 107' of the second swing arm 5 in fig. 7 in a bottom view.

The first swing arm 1 in this embodiment includes a swing arm body 101 made of a composite material and having a plate shape, and first and second connection members located at both ends of the swing arm body 101, and is connected to the wheel bracket 2 and the sub-frame 6 via the first and second connection members.

Specifically, the swing arm body 101 is a plate spring made of glass fiber material shown in fig. 7, and the glass fiber material is glass fiber reinforced plastic material, or carbon fiber reinforced plastic material, or similar fiber reinforced composite material may be used. As shown in fig. 10, the swing arm main body 101 has a plate-like structure and is substantially trapezoidal, the outer side edge of the swing arm main body 101 corresponds to the top side of the trapezoid, and the inner side edge corresponds to the bottom side of the trapezoid, but the swing arm main body 101 is not limited to the trapezoidal arrangement, and may be rectangular, square, or other shapes based on the whole vehicle arrangement requirement. The swing arm body 101 has a first connection end 1011 and a second connection end 1012 at the left and right ends, the first connection end 1011 has a plurality of first connection holes 1011a, and the second connection end 1012 has a plurality of first connection holes 1012a.

Referring again to fig. 7, the first connecting end 1011 and the second connecting end 1012 of the swing arm body 101 are connected to the first connecting member 102 and the second connecting member 107', respectively, and are connected to the wheel carrier 2 via the first connecting member 102 and the subframe 6 via the second connecting member 107'.

Specifically, as will be understood with reference to fig. 11, the first connecting member 102 may be understood that the first connecting member 102 includes a clamping end and a bushing press-in end, the clamping end includes two clamping plates 102a, the two clamping plates 102a are disposed opposite to each other with an accommodating space formed therebetween, the first connecting end 1011 of the swing arm body 101 may be inserted between the two clamping plates 102a, the two clamping plates 102a are provided with a third connecting hole 102d, the clamping plates 102a and the first connecting end 1011 may be connected by a first fastener, which is a first bolt 104, as shown in fig. 9, and the first bolt 104 may be inserted into the first connecting hole 1011a and the third connecting hole 102d and locked by a first nut 105, thereby achieving connection of the first connecting member 102 and the swing arm body 101, and of course, the first fastener may be a fastening structure other than a bolt, such as a pin, a screw, or the like. In addition, as shown in fig. 7, the adhesive layer 106 may be coated on a surface of the clamping plate 102a facing the first connection end 1011 of the swing arm body 101, so that the connection between the clamping plate 102a and the first connection end 1011 is more reliable, or, of course, the adhesive layer 106 may be coated on the first connection end 1011, or the adhesive layer 106 may be coated on the contact positions of the clamping plate 102a and the first connection end 1011.

The first connecting member 102 further includes bushing press-in ends, and two bushing press-in ends may be provided that are distributed in the front-rear direction, i.e., the front-rear direction of the vehicle. The two bushing press-in ends are a first bushing press-in end 102b and a second bushing press-in end 102c, respectively, and the bushing 103 is press-fitted into the first bushing press-in end 102b and the second bushing press-in end 102c to be fixed therein, and as shown in fig. 4, the bushing 103 of the bushing press-in end and the wheel carrier 2 can be fixed by bolts and nuts penetrating the bushing 103. In this embodiment, the two bushing press-in ends and the clamping plate 102a are provided as an integral structure, which may be a casting, and the bushing press-in ends are easy to manufacture. The first connecting member 102 is connected to the wheel bracket 2 by bolts inserted into the bushings 103, so that the bushings 103 can perform a good vibration isolation function. Of course, the swing arm body 101 may also be connected to the wheel bracket 2 by other conventional mechanical connection means, such as a direct rigid connection with the wheel bracket 2.

The other end of the swing arm body 101 is connected with a second connecting piece 107', the second connecting piece 107' comprises an upper connecting piece and a lower connecting piece, the structures of the upper connecting piece and the lower connecting piece are the same, the two connecting piece structures 107 are oppositely arranged, and the upper connecting piece and the lower connecting piece can be castings. The second attachment end 1012 of the swing arm body 101 is located between the two attachment plate structures 107 and secured by a second fastener. Specifically, as will be understood with reference to fig. 12 and 13, the connection plate structure 107 includes a plate main body 107a, where a plurality of fourth connection holes 107e are provided on the plate main body 107a, specifically four fourth connection holes 107e are provided, a plurality of connection points 6a are provided at the bottom of the subframe 6 in fig. 5, a second nut (not shown in the drawing) may be welded to the connection point 6a, the second fastening member may be a second bolt 108, and the second bolt 108 may be sequentially inserted into the fourth connection hole 107e of the connection plate structure 107 on the lower side of the second connecting member 107 'from bottom to top, the first connection hole 1012a of the swing arm main body 101, the fourth connection hole 107e of the upper connection plate structure 107, and the second nut of the subframe 6, so as to implement connection of the swing arm main body 101, the second connecting member 107' and the subframe 6, and of course, the second fastening member may be other fastening structures than bolts.

As shown in fig. 12, in this embodiment, a reinforcing rib 107f is provided on one side surface of the plate main body 107a of the connection plate structure 107 to enhance the structural strength, the reinforcing rib 107f is located on one side of the plate main body 107a away from the second connection end 1012 of the swing arm main body 101, and when the swing arm main body 101 is mounted, the reinforcing rib 107f of the connection plate structure 107 located on the upper side is provided on the upper side surface of the plate main body 107a, the reinforcing rib 107f of the connection plate structure 107 located on the lower side is provided on the lower side surface of the plate main body 107a, and the other side surface of the two connection plate structures 107 which are relatively flat is attached to the upper and lower side surfaces of the second connection end 1012 of the swing arm main body 101 so as to clamp the swing arm main body 101 better. Also, the adhesive layer 106 may be coated on a surface of the connecting member facing the second connecting end 1012 of the swing arm body 101, so that the connection with the swing arm body 101 is more reliable, or, of course, the adhesive layer 106 may be coated on the second connecting end 1012, or the adhesive layer 106 may be coated on the connecting plate structure 107 and the position where the second connecting end 1012 contacts.

The structure of the upper connecting plate structure 107 of the second connecting piece 107 'and the structure of the lower connecting plate structure 107 are identical, so that casting is convenient, the upper connecting piece and the lower connecting piece are symmetrically arranged along the middle line extending leftwards and rightwards, the connecting piece structure can be turned upside down to be used as the upper connecting plate structure 107 or the lower connecting plate structure 107, the second connecting pieces 107' of the first swing arms 1 on two sides of the auxiliary frame 6 are universal leftwards and rightwards, the die cost can be saved, and factory assembly is convenient.

With continued reference to fig. 12 and 13, in this embodiment, the connection plate structure 107 is further provided with a fifth connection hole 107c, and specifically two fifth connection holes 107c may be provided. Referring to fig. 3, when the second connection end 1012 of the first swing arm 1 is inserted between the upper and lower connection plate structures 107, the fifth connection hole 107c and the second connection end 1012 do not overlap in the vertical projection, and at this time, a third fastener may be further provided, specifically, a third bolt 109 shown in fig. 9, and the third bolt 109 may be directly inserted into the second nut welded to the subframe 6 to be locked after being inserted into the fifth connection hole 107c. In fig. 12, the connecting plate structure 107 is trapezoidal, four fourth connecting holes 107e are distributed on the top edge of the trapezoidal connecting plate structure 107, two fifth connecting holes 107c are distributed on the end of the bottom edge of the trapezoidal connecting plate structure 107, that is, on the corner of the bottom edge of the trapezoid, so that the distance between the two fifth connecting holes 107c is longer, when the second connecting end 1012 is inserted between the two connecting plate structures 107, the axis of the fifth connecting hole 107c may not pass through the second connecting end 1012, as shown in fig. 7, after the third bolt 109 is inserted into the fifth connecting hole 107c, it is located on the front and rear sides of the second connecting end 1012, respectively, so that the limiting effect on the second connecting end 1012 can be achieved, and when the view angle is shown in fig. 7, the fifth connecting hole 107c is located on the outer side of the fourth connecting hole 107 e. Here, the fifth connecting hole 107c is provided to connect with the subframe 6, so that the reliability of connection between the connecting plate structure 107 and the subframe 6 can be increased, and too many connecting holes are not required to be provided on the swing arm main body 101, so that too many holes are prevented from affecting the performance of the swing arm main body 01 made of the composite material.

As shown in fig. 12, the upper connector is provided with a first boss 107b and a second boss 107d, wherein a fourth connection hole 107e penetrates the second boss 107d and a fifth connection hole 107c penetrates the first boss 107b. The first boss 107b protrudes from both side surfaces of the connection plate structure 107, i.e., one side surface of the connection plate structure 107 facing the second connection end 1012, and the other side surface facing away from the second connection end 1012. The height of the first boss 107b protruding from the surface of the connecting plate structure 107 facing the second connecting end 1012 may be half of the thickness of the swing arm body 101, so that after the two connecting plate structures 107 are oppositely arranged up and down and clamp the swing arm body 101, the first boss 107b of the connecting plate structure 107 located on the upper side and the first boss 107b of the connecting plate structure 107 located on the lower side can just abut against each other, so that the clamping of the second connecting end 1012 is not affected, and the two connecting plate structures can be better matched, connected and fixed.

The second boss 107d protrudes from only a side surface of the connection plate structure 107 facing away from the second connection end 1012, so that the connection plate structure 107 and the swing arm body 101 can be bonded. The first boss 107b and the second boss 107d may be machined to ensure roughness, so that the first boss 107b and the second boss 107d may be matched with the second nut of the subframe 6 during connection, as shown in fig. 5, six mounting points may be set at the bottom of the subframe 6, and six second nuts may be welded and respectively correspond to the two fifth connection holes 107c and the four fourth connection holes 107 e. It is understood that the number and distribution of the fourth connection holes 107e and the fifth connection holes 107c are not limited thereto, and may be designed according to factors such as actual mounting reliability, space layout, and the like.

The suspension system in this embodiment is provided with the first swing arm 1, and the swing arm main body 101 of the first swing arm 1 is made of a composite material, has a certain elasticity, and then forms a plate spring structure, can deform along with the runout of the suspension system, and plays a role of a spring; and the swing arm main body 101 of the first swing arm 1 has an included angle with the horizontal direction, and the first swing arm 1 is obliquely arranged relative to the horizontal plane, namely, is obliquely arranged relative to the ground, so that the first swing arm 1 is equivalent to a four-point control arm, can bear stress from all directions of wheels and control toe-in of the wheels, and can serve as a traditional suspension swing arm and a traditional coil spring, so that the suspension system has simpler structure, high integration level, fewer parts, compact structure, good operation stability and easy whole vehicle arrangement. The first swing arm 1 made of the composite material has the advantage of light structure, can reduce the weight by 30% -45% compared with a traditional suspension system, is beneficial to improving the smoothness and the operation stability of the whole automobile, is beneficial to improving the cruising ability of the electric automobile when being applied to the electric automobile, saves space in the direction of the whole automobile X, Y, Z, and is beneficial to arrangement of a big battery, a big fuel tank, a big passenger cabin or a luggage cabin of the automobile body of the electric automobile.

In addition, in the embodiment, the first swing arm 1 is connected with the wheel bracket 2 and the auxiliary frame 6, and large road impact is not transmitted to the vehicle body through the spiral spring, but is transmitted to the auxiliary frame 6 by the first swing arm 1 and then transmitted to the vehicle body, so that the vibration reduction effect is better, and the smoothness and NVH performance of the vehicle are also better.

It should be noted that, as shown in fig. 3, the first swing arm 1 is gradually inclined upwards from outside to inside, and the upper surface and the lower surface of the first swing arm are curved, and accordingly, the side surface of the swing arm main body 101 is curved, and is in a parabolic shape when looking forward from behind, and meanwhile, in the embodiment, the thickness of the swing arm main body 101 is gradually increased from outside to inside, that is, the inner end is thick, and the outer end is thin, so that an equal stress design can be realized, and the stress can be balanced better and the function of a spring can be exerted better.

The embodiment also provides an automobile, which comprises an automobile body and a suspension system connected with the automobile body, wherein the suspension system is the suspension system described in the above embodiment, and the effects are the same and are not repeated.

The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.

Claims (13)

1. The suspension system comprises an auxiliary frame and a wheel bracket, and is characterized by further comprising a first swing arm, wherein the outer end of the first swing arm is connected with the auxiliary frame, the inner end of the first swing arm is connected with the wheel bracket, the first swing arm comprises a swing arm main body, and the swing arm main body is made of a composite material; at least part of the swing arm main body forms an included angle with the horizontal direction.

2. The suspension system according to claim 1, wherein the swing arm body is gradually inclined upward from outside to inside, and upper and lower surfaces of the swing arm body are curved surfaces; and the thickness of the swing arm main body gradually increases from outside to inside.

3. The suspension system according to claim 1 or 2, wherein the swing arm body is provided with a first connection end and a second connection end, the first swing arm further includes a first connection member connected to the first connection end, a second connection member connected to the second connection end, and the first swing arm is connected to the wheel bracket and the subframe through the first connection member and the second connection member, respectively.

4. A suspension system according to claim 3, wherein the first connection member is provided with a clamping end for clamping the first connection end, and the clamping end and the first connection end are fastened by a first fastener.

5. The suspension system of claim 4 wherein the first connector further comprises a bushing press-in end, the bushing press-in end being press-fitted with a bushing, the first connector being connected to the wheel bracket by a bolt inserted into the bushing.

6. A suspension system according to claim 3, wherein the second connector comprises two oppositely disposed connector plate structures, the second connector end being located between the two connector plate structures and being secured by a second fastener.

7. The suspension system of claim 6 wherein the second fastener is a bolt and the second fastener is simultaneously inserted into the connection aperture of the subframe to secure the second connection end, the web structure to the subframe.

8. The suspension system of claim 7 further comprising a third fastener securing the connection plate structure and the subframe.

9. The suspension system of claim 8, wherein the connection plate structure is provided with a first boss protruding from both side surfaces of the connection plate structure, and a height of the first boss protruding from one side surface of the connection plate structure near the second connection end is equal to a thickness of the swing arm body; and/or the connecting plate structure is provided with a second boss, and the second boss protrudes out of the surface of one side of the connecting plate structure away from the second connecting end;

the connecting plate structure is provided with a connecting hole penetrating through the first boss, and the second fastening piece is inserted into the connecting hole penetrating through the first boss; the connecting plate structure is further provided with a connecting hole penetrating through the second boss, and the third fastener is inserted into the connecting hole penetrating through the second boss.

10. The suspension system of claim 6 wherein the web structure includes a web body and a stiffener disposed on a side surface of the web body remote from the second link, the other side surface of the web body being in engagement with the second link.

11. A suspension system according to claim 3, wherein the first connection member and the first connection end and/or the second connection member and the second connection end are provided with a glue layer therebetween.

12. A suspension system according to claim 3, wherein the first and/or second connection members are cast.

13. An automobile comprising a body, and a suspension system connected to the body, wherein the suspension system is the suspension system of any one of claims 1-12.