Chassis assembly and vehicle

Abstract

The utility model discloses a chassis assembly and a vehicle. The chassis assembly comprises an auxiliary frame longitudinal beam; one end of the swing arm is connected with the wheel, and the other end of the swing arm is connected with the auxiliary frame longitudinal beam through a swing arm support; the swing arm support is provided with a shearing plate, the shearing plate can abut against the swing arm and shear the swing arm in the process that the swing arm rotates towards the tail of the vehicle with the swing arm support as the center, the shearing plate and the swing arm are arranged in the first direction, and the shearing plate is close to the tail of the vehicle; the first direction is the connecting line direction of the head and the tail of the vehicle. When the vehicle is under the working condition of the small offset counterguard and the position where the swing arm is connected with the wheel moves towards the tail of the vehicle and rotates, the swing arm can abut against the shearing plate, the shearing plate generates shearing force on the swing arm, and therefore the swing arm is broken, deflection of the wheel is released, and the deflection angle of the wheel is increased. The position where the wheel collides with the vehicle body is deflected to other positions from the original foot rest, so that the invasion amount of the wheel at the foot rest is reduced, and the injury to passengers in the vehicle is reduced.

Description

Technical Field

[0001] This application relates to the technical field of vehicle performance, and more particularly to a chassis component and a vehicle. Background Technology

[0002] The small overlap barrier (SOB) crash test is a vehicle safety testing method primarily used to evaluate the safety performance of a vehicle in a small-angle collision.

[0003] In the case of a small overlap barrier (SOB), the impact posture of the vehicle's wheels is strongly correlated with the intrusion into the vehicle's footrest area. Therefore, controlling the position of the wheels impacting the vehicle body can reduce the amount of intrusion into the vehicle body and reduce the injury to the occupants.

[0004] Currently, by controlling the breakage of the swing arm of the subframe longitudinal beam connecting the wheel and the vehicle, the wheel is released, thereby increasing the wheel rotation angle, changing the collision position between the wheel and the vehicle body, reducing the intrusion of the wheel into the vehicle's foot rest area, and thus reducing injury to the occupants.

[0005] Therefore, how to provide a vehicle chassis component that enables the breakage of the control arm, thereby changing the collision position between the wheel and the vehicle body and reducing the intrusion of the wheel into the vehicle's footrest area, is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of the above problems, this application provides a chassis assembly for a vehicle to achieve the breakage of the control arm, thereby changing the collision position between the wheel and the vehicle body and reducing the intrusion of the wheel into the vehicle's footrest area. Furthermore, this application also provides a vehicle with the chassis assembly.

[0007] The specific plan is as follows:

[0008] The first aspect of this application provides a chassis assembly, comprising: a subframe longitudinal beam; a swing arm, one end of which is connected to a wheel, and the other end of which is connected to the subframe longitudinal beam via a swing arm bracket; the swing arm bracket has a shearing plate, which can abut against and shear the swing arm as the swing arm rotates about the swing arm bracket toward the rear of the vehicle, the shearing plate and the swing arm are arranged along a first direction, and the shearing plate is close to the rear of the vehicle; the first direction is the line connecting the front and rear of the vehicle.

[0009] In one possible implementation, in the aforementioned chassis assembly, the swing arm bracket includes a first side plate and a second side plate, the second side plate being the shear plate; the first side plate and the second side plate are arranged along the first direction, and the swing arm is rotatably connected to the swing arm bracket, the swing arm being rotatable relative to the swing arm bracket in the height direction of the vehicle.

[0010] In one possible implementation, in the aforementioned chassis assembly, the dimension of the first side plate along the second direction is smaller than the dimension of the second side plate along the second direction; the second direction is the arrangement direction of the subframe longitudinal beam and the swing arm.

[0011] In one possible implementation, the aforementioned chassis assembly further includes a third side plate, one end of which is connected to the first side plate along the first direction, and the other end of which is connected to the second side plate along the first direction.

[0012] In one possible implementation, the aforementioned chassis assembly further includes: a fourth side plate, one end of which is connected to the first side plate along the first direction, and the other end of which is connected to the second side plate along the first direction; the fourth side plate is connected to the third side plate along one side of the second direction, and the first side plate, the third side plate, and the second side plate are arranged sequentially along the circumference of the fourth side plate.

[0013] In one possible implementation, in the chassis assembly described above, the second side of the fourth side plate along the second direction is opposite to the first side, and the distance between the first side and the second side along the second direction gradually increases from the first side plate towards the second side plate.

[0014] In one possible implementation, in the chassis assembly described above, a pivot is provided between the first side plate and the second side plate, the axis of the pivot is along the first direction, and the swing arm is rotatably sleeved on the pivot.

[0015] In one possible implementation, the aforementioned chassis assembly further includes a reinforcement member that connects the shear plate and the subframe longitudinal beam.

[0016] In one possible implementation, in the aforementioned chassis assembly, the reinforcing member is welded to the subframe longitudinal beam, and the reinforcing member is welded to the shear plate.

[0017] A second aspect of this application provides a vehicle including a chassis assembly, wherein the chassis assembly is any of the chassis assemblies described above.

[0018] Using the above technical solution, in the chassis assembly provided in this application, the control arm is connected to the subframe longitudinal beam via a control arm bracket, and the control arm bracket has a shear plate near the rear of the vehicle. Under small offset barrier conditions, the two ends of the control arm in the second direction displace along the first direction. As the position where the control arm connects to the wheel moves towards the rear of the vehicle and rotates, the control arm abuts against the shear plate, causing the shear plate to exert a shearing force on the control arm, thus causing the control arm to break. This releases the wheel's deflection, increasing the wheel's deflection angle. Therefore, the point of impact between the wheel and the vehicle body shifts from the original footrest to another position, which helps reduce the wheel's intrusion at the footrest, thereby reducing injury to the occupants. Attached Figure Description

[0019] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0020] Figure 1 This is a structural diagram of the vehicle chassis;

[0021] Figure 2 A structural diagram illustrating the collision state between the vehicle chassis and a small offset barrier;

[0022] Figure 3 A schematic diagram of the swing arm fracture state during a collision between the vehicle chassis and a small offset barrier.

[0023] Figure 4 This is a structural schematic diagram of the vehicle chassis provided in an embodiment of this application;

[0024] Figure 5 A partial structural schematic diagram of the vehicle chassis provided in an embodiment of this application;

[0025] Figure 6 This is a schematic diagram of the connection structure between the swing arm and the swing arm bracket provided in an embodiment of this application;

[0026] Figure 7 for Figure 6 A schematic diagram of the structure in another direction;

[0027] Figure 8 This is a schematic diagram of the structure of the swing arm bracket and reinforcing member provided in the embodiments of this application;

[0028] Figure 9 This is a schematic diagram of the swing arm bracket and reinforcing member provided in an embodiment of this application from another direction;

[0029] Figure 10 This is a schematic diagram of the swing arm shearing under a small offset barrier collision state, provided in an embodiment of this application.

[0030] Among them, 1000 is the chassis component, 100 is the subframe longitudinal beam, 200 is the swing arm, 300 is the wheel, 400 is the footrest, 500 is the sill, 600 is the swing arm bracket, 700 is the reinforcement component, and 800 is the bogie.

[0031] 201 is the pivot, 601 is the first side plate, 602 is the second side plate, 603 is the third side plate, and 604 is the fourth side plate. Detailed Implementation

[0032] The embodiments of this application are described below with reference to the accompanying drawings. The terminology used in the implementation section of this application is for explaining specific embodiments only and is not intended to limit the scope of this application.

[0033] The embodiments of this application will now be described with reference to the accompanying drawings. Those skilled in the art will recognize that, with technological advancements and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.

[0034] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms are interchangeable where appropriate; this is merely a way of distinguishing objects with the same attributes in the embodiments of this application. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, so that a process, method, system, product, or apparatus that comprises a series of elements is not necessarily limited to those elements, but may include other elements not explicitly listed or inherent to those processes, methods, products, or apparatuses.

[0035] The small overlap barrier (SOB) crash test is a vehicle safety testing method primarily used to evaluate the safety performance of a vehicle in a small-angle collision.

[0036] In small overlap barrier (SOB) conditions, the impact posture of the vehicle's wheels is strongly correlated with the intrusion into the vehicle's footrest area. Therefore, controlling the position of the wheels impacting the vehicle body can reduce the amount of intrusion into the vehicle body and reduce the injury to the occupants.

[0037] Combination Figures 1 to 3As shown, the wheels 300 of the vehicle's chassis assembly 1000 are connected to the subframe longitudinal beam 100 via a swing arm 200. The wheels 300 and the swing arm 200 are arranged along a second direction; the wheels 300 and the footrest 400 are arranged along a first direction and are opposite to each other. In this text, the first direction is the direction of the line connecting the front and rear of the vehicle, where the front is shown in the figure and the rear is shown in the figure; the second direction in this text is the width direction of the vehicle.

[0038] In the case of a small offset barrier, the wheel 300 of the chassis assembly 1000 collides with the rigid barrier. Under the restriction of the rigid barrier, the wheel 300 and the subframe longitudinal beam 100 move relative to each other in the first direction. That is, the swing arm 200 deforms in the first direction toward the rear of the vehicle, that is, the swing arm 200 bends toward the rear of the vehicle until it breaks.

[0039] like Figure 2 As shown, if the swing arm 200 does not break, the rotation of the wheel 300 is restricted by the swing arm 200. The rotation radius of the wheel 300 is small, and it will hit the area of ​​the footrest 400 during the collision, and the footrest 400 will intrude into the vehicle body.

[0040] like Figure 3 As shown, after the swing arm 200 breaks and fails, the wheel 300 rotates more, and the wheel 300 hits the sill 500 instead of the footrest 400. The sill 500 is the main force transmission structure of the chassis assembly 1000 and can withstand much higher forces than the footrest 400. Therefore, the intrusion of the footrest 400 into the vehicle body can be reduced.

[0041] In summary, current methods typically involve controlling the breakage of the control arm of the subframe longitudinal beam connecting the wheel and the vehicle, thereby releasing the wheel and increasing the wheel's rotation angle. This alters the point of impact between the wheel and the vehicle body, reducing the intrusion of the wheel into the vehicle's footwell and thus minimizing injury to occupants.

[0042] Based on the above problems, the purpose of this application is to reduce the intrusion of the wheel 300 into the vehicle body under small offset barrier conditions by controlling the breakage of the swing arm 200, thereby reducing the injury to the occupants and improving the safety performance of the vehicle.

[0043] like Figures 4 to 9 As shown in the figure, this application discloses a vehicle chassis assembly 1000, including: a subframe longitudinal beam 100, a swing arm 200, and a swing arm bracket 600.

[0044] Among them, the two ends of the subframe longitudinal beam 100 along the second direction are respectively connected to the swing arms 200, and the swing arms 200 are respectively connected to the wheels (not shown in the figure) on the corresponding side through the bogie 800.

[0045] Optionally, the subframe longitudinal beam 100 is connected to the two swing arms 200 in the same way; here, only one side is used as an example for explanation.

[0046] Figures 4 to 7 In this configuration, one end of the swing arm 200 is rotatably connected to the swing arm bracket 600, and the other end of the swing arm 200 is connected to the bogie 800. The plane of rotation of the swing arm 200 relative to the swing arm bracket 600 is perpendicular to the plane containing the first direction and the second direction.

[0047] The swing arm bracket 600 is fixed to the subframe longitudinal beam 100. For example, the swing arm bracket 600 is welded to the subframe longitudinal beam 100. Welding the swing arm bracket 600 to the subframe longitudinal beam 100 can improve the stability and strength of the connection.

[0048] like Figure 8 and Figure 9 As shown, the swing arm bracket 600 of this application embodiment has a shear plate (second side plate 602 in the figure) along the first direction. The shear plate is arranged near the rear of the vehicle. After the vehicle collision, the swing arm 200 will rotate towards the rear of the vehicle with the swing arm bracket 600 as the center. During the rotation, the swing arm 200 will abut against the shear plate and generate shearing force with the shear plate until the swing arm 200 breaks.

[0049] In some embodiments, the swing arm bracket 600 has a first side plate 601 and a second side plate 602 along a first direction, wherein the first side plate 601 is closer to the front of the vehicle, the second side plate 602 is closer to the rear of the vehicle, and the dimension of the first side plate 601 along a second direction is smaller than the dimension of the second side plate 602 along the second direction. (Combined with...) Figure 10 As shown, the dimensional difference between the first side plate 601 and the second side plate 602 along the second direction is L. The specific value of L is not specifically limited here.

[0050] In this application, the swing arm 200 is connected to the subframe longitudinal beam 100 via a swing arm bracket 600, and the second side plate 602 of the swing arm bracket 600, which is closer to the rear of the vehicle, has a larger dimension along the second direction. Under small offset barrier conditions, the two ends of the swing arm 200 along the second direction undergo displacement along the first direction. As the position where the swing arm 200 is connected to the wheel 300 moves towards the rear of the vehicle and rotates, the swing arm 200 abuts against the end of the second side plate 602, causing it to break. This releases the wheel's deflection, increasing the wheel's deflection angle. Therefore, the point of impact between the wheel and the vehicle body shifts from the footrest to the sill position, reducing the wheel's intrusion at the footrest. Furthermore, due to the high strength of the sill, the wheel's intrusion into the vehicle body is further reduced.

[0051] The swing arm 200 in this application can break at a preset position while ensuring strength, thereby controlling the posture of the wheel hitting the vehicle body, reducing the amount of intrusion into the vehicle body, reducing the injury to the occupants, and improving the safety performance of the vehicle.

[0052] Optionally, the swing arm bracket 600 includes a first side plate 601, a second side plate 602, a third side plate 603, and a fourth side plate 604.

[0053] The first side plate 601 and the second side plate 602 are arranged parallel to each other along a first direction and opposite to each other, forming a space between the first side plate 601 and the second side plate 602 to accommodate the swing arm 200. In some embodiments, a rotating shaft 201 is provided between the first side plate 601 and the second side plate 602, and the swing arm 200 is rotatably mounted on the rotating shaft 201.

[0054] The fourth side plate 604 is connected to the first side plate 601 on one side along the first direction, and the fourth side plate 604 is connected to the second side plate 602 on the other side along the first direction, forming a U-shaped groove structure.

[0055] The fourth side panel 604 includes a first side and a second side along the second direction. The first side is connected to the third side panel 603, and the second side is not flush with the first direction. This can be understood as the distance between the first side and the second side along the second direction gradually increasing from the front to the rear of the vehicle, in order to accommodate the situation where the first side panel 601 and the second side panel 602 have different lengths along the second direction.

[0056] One end of the third side plate 603 along the first direction is connected to the first side plate 601, and the other end of the third side plate 603 along the first direction is connected to the second side plate 602. For example, the first side plate 601, the third side plate 603, the second side plate 602 and the fourth side plate 604 are integrally formed into a groove structure, and the swing arm bracket 600 is made of high-strength steel.

[0057] In the swing arm bracket 600 of this application embodiment, the first side plate 601 and the second side plate 602 are connected by a third side plate 603, which increases the connection strength between the first side plate 601 and the second side plate 602. The first side plate 601, the second side plate 602 and the third side plate 603 are connected as a whole by a fourth side plate 604, which further increases the connection strength of the second side plate 602, helps to prevent the second side plate 602 from breaking, and ensures that the swing arm 200 breaks at a preset position.

[0058] It should be noted that the length of the second side plate 602 along the second direction in this embodiment can be set according to the position where the swing arm 200 needs to break. This application does not limit it in combination with the actual needs of the vehicle.

[0059] In some embodiments, the chassis assembly 1000 further includes a reinforcing member 700, one end of which is fixedly connected to the second side plate 602, and the other end of which is fixedly connected to the subframe longitudinal beam 100. The reinforcing member 700 and the subframe longitudinal beam 100 are connected by, but not limited to, welding, threaded connections, or integral molding. The reinforcing member 700 and the second side plate 602 are connected by, but not limited to, welding, threaded connections, or integral molding. For example, the reinforcing member 700 and the second side plate 602 are cross-welded to increase the strength of the second side plate 602 of the swing arm bracket 600.

[0060] The connection between the swing arm bracket 600 and the reinforcing member 700 in this embodiment of the application can increase the strength of the second side plate 602 of the swing arm bracket 600.

[0061] In accordance with the above structure, during the collision of wheel 300 and its displacement towards the rear of the vehicle relative to the subframe longitudinal beam 100, the rotating wheel 300 will cause the swing arm 200 to abut against the second side plate 602 of the swing arm bracket 600 until the swing arm 200 breaks at the point of contact with the second side plate 602. During the contact process between the swing arm 200 and the second side plate 602, the high strength of the second side plate 602 reduces the risk of failure of the second side plate 602, thereby reducing the risk of breakage of the swing arm 200.

[0062] Optionally, the reinforcing member 700 may be made of high-strength steel, and the shape and size of the reinforcing member 700 may be set according to the strength requirements.

[0063] Furthermore, this application also discloses a vehicle including a chassis assembly, wherein the chassis assembly is the chassis assembly disclosed in the above embodiments. Therefore, the vehicle having this chassis assembly also has all the above-mentioned technical problems, which will not be repeated here.

[0064] See Figure 10 As shown, in conjunction with the chassis assembly disclosed in this application embodiment, during a small offset barrier collision: as the vehicle moves forward, after the vehicle's wheels are compressed by the small offset barrier, the wheels shift relative to the vehicle's subframe longitudinal beam 100 towards the rear of the vehicle, causing the swing arm 200 to rotate towards the rear of the vehicle with the swing arm bracket 600 as the center. During the rotation of the swing arm 200, the swing arm 200 will compress the second side plate 602 of the swing arm bracket 600. After the swing arm 200 rotates to a certain extent, under the strong shearing of the second side plate 602 of the swing arm bracket 600, the swing arm 200 breaks, the swing arm 200 that restricts the wheel fails, the wheel deflection is released, and the wheel deflection angle increases. Therefore, the position of the wheel impacting the vehicle body changes from the original footrest to the sill position, reducing the amount of wheel intrusion at the footrest. Furthermore, due to the high strength of the sill, the amount of wheel intrusion into the vehicle body can be reduced.

[0065] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0066] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A chassis assembly characterized by, The application relates to a vehicle subframe, which comprises: a subframe longitudinal beam (100); a swing arm (200) connected with a wheel at one end, and connected with the subframe longitudinal beam (100) through a swing arm support (600) at the other end; the swing arm support (600) has a shearing plate capable of abutting against and shearing the swing arm (200) during rotation of the swing arm (200) about the swing arm support (600) to the tail direction of the vehicle, the shearing plate is arranged along a first direction with the swing arm (200), and the shearing plate is close to the tail of the vehicle; the first direction is the direction of the line connecting the head and the tail of the vehicle.

2. The chassis assembly of claim 1, wherein, The swing arm support (600) comprises a first side plate (601) and a second side plate (602), and the second side plate (602) is the shearing plate; the first side plate (601) and the second side plate (602) are arranged along the first direction, and the swing arm (200) is rotationally connected with the swing arm support (600), and the swing arm (200) can rotate relative to the swing arm support (600) in the height direction of the vehicle.

3. The chassis assembly of claim 2, wherein, The size of the first side plate (601) along a second direction is smaller than the size of the second side plate (602) along the second direction; the second direction is the arrangement direction of the subframe longitudinal beam (100) and the swing arm (200).

4. The chassis assembly of claim 3, wherein, The swing arm support (600) further comprises: a third side plate (603) connected with the first side plate (601) at one end along the first direction, and connected with the second side plate (602) at the other end along the first direction.

5. The chassis assembly of claim 4, wherein, The swing arm support (600) further comprises: a fourth side plate (604) connected with the first side plate (601) at one end along the first direction, and connected with the second side plate (602) at the other end along the first direction; one side of the fourth side plate (604) along a second direction is connected with the third side plate (603), and the first side plate (601), the third side plate (603) and the second side plate (602) are sequentially arranged along the circumference of the fourth side plate (604).

6. The chassis assembly of claim 5, wherein, The second side of the fourth side plate (604) along the second direction is opposite to the first side, and the distance between the first side and the second side along the second direction gradually increases from the first side plate (601) to the second side plate (602).

7. The chassis assembly of claim 2, wherein, A rotating shaft (201) is arranged between the first side plate (601) and the second side plate (602), the axis direction of the rotating shaft (201) is along the first direction, and the swing arm (200) is rotatably sleeved on the rotating shaft (201).

8. The chassis assembly of any one of claims 1 to 7, wherein, The application further comprises: a reinforcing member (700) connecting the shearing plate and the subframe longitudinal beam (100).

9. The chassis assembly of claim 8, wherein, The reinforcing member (700) is welded with the subframe longitudinal beam (100), and the reinforcing member (700) is welded with the shearing plate.

10. A vehicle comprising a chassis assembly, characterised in that, The chassis assembly is as claimed in any of claims 1 to 9. The chassis assembly is as claimed in any of claims 1 to 9.

Images