Vehicle and stabilizer bar system thereof
By setting the torsion member and elastic member in the stabilizing rod system, the coupling relationship between the connecting part and the mating part is used to realize automatic stiffness adjustment under different working conditions, solving the problem of difficulty in adjusting the stiffness in the prior art, and improving the vehicle Comfort and stability.
Patent Information
- Application Number
- CN202311029246.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-16
- Publication Date
- 2025-02-21
AI Technical Summary
In the prior art, the stiffness of the stabilizing rod system is difficult to adjust easily, resulting in the vehicle being unable to adapt automatically under different working conditions, affecting the comfort and stability of the vehicle.
By providing a torsion member and an elastic member in the stabilizing rod system, the mating relationship between the connecting part and the mating part is employed so that when the torsion angle of the torsion member reaches a specific threshold, the elastic member participates in torsion and adjusts the system stiffness.
The automatic stiffness adjustment of the stabilizing rod system under different operating conditions is achieved, reducing the risk of vehicle rolling and improving the comfort and steering stability of the vehicle.
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Figure CN119489649A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle and a stabilizer bar system thereof. Background Art
[0002] As an important component of the vehicle's suspension system, the structural performance of the stabilizer bar system has an important impact on the stability, safety and comfort of the vehicle.
[0003] The stiffness of the stabilizer bar system is an important structural performance of the stabilizer bar system. The stiffness of the stabilizer bar system required by the vehicle under different working conditions is also different. In the related technology, it is necessary to replace related parts to adjust the stiffness of the stabilizer bar, which is complicated. Therefore, how to conveniently adjust the stiffness of the stabilizer bar system has become a technical problem that needs to be solved in this field. Summary of the invention
[0004] The embodiments of the present application provide a vehicle and a stabilizer bar system thereof, which can quickly adjust the stiffness of the stabilizer bar system.
[0005] In a first aspect, the present application provides a stabilizer bar system, which includes a torsion member and an elastic member; the torsion member includes a main body and a connecting portion, the connecting portion is arranged on the main body; the elastic member is sleeved on the main body, the elastic member includes a first matching portion, the connecting portion is configured to be able to offset against the first matching portion when the torsion member is twisted, so that the elastic member twists along with the torsion member, and when the first matching portion offsets against the connecting portion, the torsion angle of the torsion member is greater than or equal to a first threshold value.
[0006] The stabilizer bar system provided in the embodiment of the present application can achieve a smaller stiffness when the torsion angle of the torsion member is less than the first threshold value, and a larger stiffness when the torsion angle of the torsion member is greater than or equal to the first threshold value, by setting the first matching portion of the elastic member to abut against the connecting portion. In this way, the stabilizer bar system can automatically adjust its own stiffness value according to the actual operating conditions to improve the comfort of the vehicle while reducing the risk of vehicle roll.
[0007] In some embodiments, the connection portion includes a first pin and a second pin, and the first pin and the second pin are arranged at intervals on the main body at least along the axial direction of the elastic member; the first matching portion includes a first through hole and a second through hole arranged at intervals, the first pin is configured to be able to be inserted into the first through hole, and the second pin is configured to be able to be inserted into the second through hole, the hole wall of the first through hole is against the first pin on both sides along the circumference of the elastic member, the size of the second through hole along the circumference is larger than the size of the second pin along the circumference, and when the torsion angle of the torsion member is zero, the hole wall of the second through hole and the second pin are arranged at intervals along the circumference. Such an arrangement is conducive to simplifying the structure of the connection portion and the elastic member.
[0008] In some embodiments, the elastic member further includes a second matching portion, and the connecting portion is configured to be able to counteract one of the first matching portion and the second matching portion when the torsion member is twisted, so that the elastic member is twisted along with the torsion member, and when the second matching portion is matched with the connecting portion, the torsion angle of the torsion member is greater than or equal to the second threshold value, and the second threshold value is not equal to the first threshold value. In this way, when the stabilizer bar system is in different working conditions, the timing of increasing the stiffness of the stabilizer bar system can be adjusted by selecting the elastic first matching portion or the second matching portion to match with the connecting portion, which is conducive to improving the steering accuracy of the vehicle and reducing the understeering degree of the vehicle while ensuring the comfort of the vehicle.
[0009] In some embodiments, the second matching portion is arranged axially and connected with the first matching portion, and the connecting portion is configured to be able to move axially to match with the first matching portion or the second matching portion. In this way, the elastic member can switch between matching with the first matching portion and matching with the second matching portion by simply moving the elastic member axially, which is conducive to improving the convenience of adjusting the stiffness of the stabilizer bar system.
[0010] In some embodiments, the connecting portion includes a first pin and a second pin, and the first pin and the second pin are arranged at intervals in the main body at least along the axial direction of the elastic member; the elastic member has a strip hole and a matching hole arranged at intervals, and the strip hole extends along the axial direction of the elastic member; the first pin is inserted into the strip hole, and the strip hole contacts the first pin on both side walls along the circumference of the elastic member; the matching hole extends along the axial direction and includes a first matching portion and a second matching portion arranged along the axial direction, and the distance between the hole walls on both sides of the circumference of the first matching portion is smaller than the distance between the hole walls on both sides of the circumference of the second matching portion, and the second pin is inserted into the matching hole, and when the torsion angle of the torsion member is zero, the second pin is spaced from the hole walls on both sides of the circumference of the first matching portion or the hole walls on both sides of the circumference of the second matching portion. With such an arrangement, it is only necessary to realize the movement of the elastic member relative to the main body along the axial direction, which is conducive to simplifying the structure of the elastic member and the torsion member.
[0011] In some embodiments, the matching hole further includes a third matching portion, the first matching portion, the second matching portion and the third matching portion are arranged along the axial direction, the distance between the hole walls of the third matching portion on both sides along the circumferential direction is greater than the distance between the hole walls of the second matching portion on both sides along the circumferential direction, and when the torsion angle of the torsion member is zero, the second pin shaft is spaced from the first matching portion, the second matching portion or the third matching portion. According to actual working conditions, the first matching portion, the second matching portion or the third matching portion of the elastic member can be selected to match with the second pin shaft to increase the stiffness of the stabilizer bar system at an appropriate time, which is conducive to further improving the comfort and steering stability of the vehicle.
[0012] In some embodiments, the first matching portion has a first center plane and a first side wall and a second side wall opposite to each other in the circumferential direction, the first side wall and the second side wall are symmetrically arranged relative to the first center plane, the second matching portion has a second center plane and a third side wall and a fourth side wall opposite to each other in the circumferential direction, the third side wall and the fourth side wall are symmetrically arranged relative to the second center plane; the first center plane and the second center plane coincide with each other or have a spacing. In the case where the first center plane and the second center plane coincide with each other, in the process of the elastic member switching the first matching portion or the second matching portion to match with the second pin shaft, it is only necessary to move the elastic member axially to achieve that the two first thresholds of the torsion member torsion in opposite directions are equal, and the two second thresholds of the torsion member torsion in opposite directions are equal. In this way, it is beneficial to improve the stability of vehicle operation. Wherein, the first center plane and the second center plane extend in the axial direction, in particular, the first center plane and the second center plane are located in the same plane; or the first center plane and the second center plane are arranged in parallel and have a spacing. In addition, the first center plane and the second center plane can also be arranged non-parallel.
[0013] In some embodiments, the spacing d between the first center plane and the second center plane satisfies: 0<d≤1mm. The first center plane and the second center plane overlap as much as possible, and allow the relevant dimensions of the first matching part and the second matching part to have a certain error. In this way, by reasonably setting the appropriate initial position of the second pin relative to the matching hole, in the process of the elastic member switching the first matching part or the second matching part to match with the second pin, it is only necessary to move the elastic member axially to achieve a small difference between the two first thresholds of the torsion member twisting in opposite directions, and a small difference between the two second thresholds of the torsion member twisting in opposite directions. In this way, it is beneficial to improve the stability of vehicle operation and reduce the difficulty of processing the first matching part and the second matching part.
[0014] In some embodiments, the first side wall and / or the second side wall are arranged to be inclined relative to the first center plane. In this way, the first matching portion of the elastic member can be steplessly adjusted to participate in the different timings of the torsion of the torsion member, that is, the timing of increasing the stiffness of the stabilizer bar system can be steplessly adjusted, which is conducive to further improving the adaptability of the stabilizer bar system to different working conditions, so as to improve the comfort and stability of the vehicle.
[0015] In some embodiments, the third side wall and / or the fourth side wall are arranged to be inclined relative to the second center plane. In this way, the second matching portion of the elastic member can be steplessly adjusted to participate in the torsion of the torsion member at different times, that is, the timing of increasing the stiffness of the stabilizer bar system can be steplessly adjusted, which is conducive to further improving the adaptability of the stabilizer bar system to different working conditions, so as to improve the comfort and stability of the vehicle.
[0016] In some embodiments, the stabilizer bar system further includes a driving member, which is connected to the elastic member and can drive the elastic member to move so that the second pin shaft passes through the first matching portion or the second matching portion of the matching hole to match. The elastic member is moved axially by the driving member, which is more labor-saving and convenient for controlling the distance of the elastic member moving axially.
[0017] In some embodiments, the material of the elastic member includes silicone or rubber, which is beneficial for the elastic member to restore its deformation in time after the torsion angle of the torsion member is restored, and to increase the stiffness of the stabilization system to a large extent when the elastic member participates in the torsion of the torsion member.
[0018] In some embodiments, the stabilizer bar system further comprises a clamping member, which is disposed through the main body and vulcanized to the main body, so that during the torsion member torsional process, the friction force of the torsion member relative to the clamping member is reduced, and the wear and noise of the torsion member are reduced.
[0019] In some embodiments, the main body includes a first connecting rod, a second connecting rod and a third connecting rod, the second connecting rod and the third connecting rod are respectively hinged at two ends of the first connecting rod, the connecting portion is arranged on the first connecting rod, and the elastic member is sleeved on the first connecting rod. Such an arrangement is conducive to further improving the stability of the stabilizer bar system.
[0020] In a second aspect, an embodiment of the present application provides a vehicle, comprising a stabilizer bar system provided by any of the above embodiments.
[0021] The vehicle provided in the embodiment of the present application has the same technical effect as the stabilizer bar system provided in any of the above embodiments, and thus will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.
[0023] Figure 1 is a schematic structural diagram of a vehicle provided in an embodiment of the present application;
[0024] Figure 2 is a structural schematic diagram of a stabilizer bar system provided in an embodiment of the present application;
[0025] Figure 3 is a schematic structural diagram of another stabilizer bar system provided in an embodiment of the present application;
[0026] Figure 4 yes Figure 3 A partial enlarged view of the middle A;
[0027] Figure 5 is a schematic structural diagram of an elastic member in a stabilizer bar system provided in an embodiment of the present application;
[0028] Figure 6 is a schematic structural diagram of another elastic member in a stabilizer bar system provided in an embodiment of the present application;
[0029] Figure 7 yes Figure 6 A partial enlarged view of point B in the middle;
[0030] Figure 8 is a schematic structural diagram of another elastic member in the stabilizer bar system provided in an embodiment of the present application;
[0031] Fig. 9 is a structural schematic diagram of another stabilizer bar system provided in an embodiment of the present application;
[0032] Fig.10 It is a partial structural schematic diagram of a vehicle provided in an embodiment of the present application.
[0033] In the drawings, the drawings are not necessarily drawn to scale.
[0034] Marking Description:
[0035] 1. Vehicles;
[0036] 10. Stabilizer bar system;
[0037] 11. torsion member; 111. main body; 1111. first connecting rod; 1112. second connecting rod; 1113. third connecting rod; 112. connecting part; 112a. first pin shaft; 112b. second pin shaft;
[0038] 12, elastic member; 12a, strip hole; 12b, matching hole; 121, first matching portion; 121a, first through hole; 121b, second through hole; 121c, first center plane; 1211, first side wall; 1212, second side wall; 122, second matching portion; 122a, second center plane; 1221, third side wall; 1222, fourth side wall; 123, third matching portion;
[0039] 13. Driving member; 14. Connecting member;
[0040] 20. Shock absorber;
[0041] X, circumferential direction; Y, axial direction. DETAILED DESCRIPTION
[0042] The following detailed description and drawings of the embodiments of the present application are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.
[0043] In the description of the present application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inside", "outside", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but is within the allowable error range. "Parallel" is not strictly parallel, but is within the allowable error range.
[0044] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.
[0045] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0046] The term "plurality" used in the present application refers to two or more (including two).
[0047] The stabilizer bar system connects the shock absorbers on both sides of the vehicle to reduce the risk of the vehicle rolling over when the vehicle is turning or driving on bumpy roads. The stiffness of the stabilizer bar system has an important impact on the comfort and stability of the vehicle. During the driving of the vehicle, the stiffness requirements of the stabilizer bar system are different under different working conditions. For example, when the vehicle is driving on a bumpy road, the stabilizer bar system needs to have a larger stiffness to reduce the risk of the vehicle rolling over, while when the vehicle is driving on a flat road, the stabilizer bar system needs to have a relatively lower stiffness to improve the comfort of the vehicle. However, in the related art, the stiffness of the stabilizer bar system is usually fixed, and the stiffness of the stabilizer bar system cannot be adjusted conveniently and quickly.
[0048] In view of this, if Figure 1 and Figure 2 As shown, one aspect of an embodiment of the present application provides a stabilizer bar system 10, which includes a torsion member 11 and an elastic member 12. The torsion member 11 includes a main body 111 and a connecting portion 112, and the connecting portion 112 is arranged on the main body 111. The elastic member 12 is sleeved on the main body 111, and the elastic member 12 includes a first matching portion 121, and the connecting portion 112 is configured to be able to counteract with the first matching portion 121 when the torsion member 11 is twisted, so that the elastic member 12 is twisted together with the torsion member 11, and when the first matching portion 121 counteracts with the connecting portion 112, the torsion angle of the torsion member 11 is greater than or equal to the first threshold value.
[0049] When the stabilizer bar system 10 is applied to the vehicle 1, the torsion member 11 can be connected to the shock absorbers 20 on both sides of the vehicle 1. When the shock absorbers 20 on either side of the vehicle 1 are stimulated by the road surface, they pull up or rebound, and the torsion member 11 is subjected to the tensile force or thrust from the shock absorber 20. The torsion member 11 suppresses the risk of the vehicle 1 rolling over by its own torsion.
[0050] The connecting portion 112 is connected to the main body 111, and the connecting portion 112 can be connected to the main body 111 by bolts or pins.
[0051] The connecting part 112 is connected with the main body 111 by a connecting piece, or the connecting part 112 is directly connected with the main body 111 by welding or interference connection. In this way, when the main body 111 is twisted, the connecting part 112 can be twisted together with the main body 111.
[0052] When the first matching portion 121 of the elastic member 12 is against the connecting portion 112, the torsion angle of the torsion member 11 is greater than or equal to the first threshold. In other words, when the torsion angle of the torsion member 11 is greater than or equal to the first threshold, the first matching portion 121 of the elastic member 12 is against the connecting portion 112, and when the torsion angle of the torsion member 11 is less than the first threshold, the first matching portion 121 and the connecting portion 112 are not against each other.
[0053] The connecting portion 112 and the first matching portion 121 may be any structure that can be switched between mutually abutting and mutually separated states. For example, one of the connecting portion 112 and the first matching portion 121 is a protrusion, and the other is a groove or hole structure that matches the protrusion.
[0054] When the connecting portion 112 and the first matching portion 121 are in contact with each other, the torsional force of the torsion member 11 is transmitted to the elastic member 12, and the elastic member 12 is torsioned together with the torsion member 11. The elastic member 12 participates in the torsion of the stabilizer bar system 10, thereby increasing the overall rigidity of the stabilizer bar system 10. When the connecting portion 112 and the first matching portion 121 are not in contact with each other, the elastic member 12 does not bear the torque, does not participate in the torsion of the stabilizer bar system 10, and the elastic member 12 does not increase the rigidity of the stabilizer bar system 10.
[0055] In this way, during the operation of the stabilizer bar system 10, the torsion member 11 is subjected to torsional force, and the torsion member 11 twists first. As the torsion angle of the torsion member 11 increases and reaches a first threshold, the first matching portion 121 and the connecting portion 112 offset each other, and the elastic member 12 participates in the torsion of the stabilizer bar system 10. As the torsion member 11 twists together, the overall stiffness of the stabilizer bar system 10 increases.
[0056] According to needs, by setting a reasonable distance between the connecting portion 112 and the first matching portion 121, the specific value of the first threshold can be reasonably configured. When the torsion angle of the torsion member 11 reaches the first threshold, the connecting portion 112 begins to counteract the first matching portion 121. In this way, when the torsion angle of the torsion member 11 is less than the first threshold, the elastic member 12 will not participate in the torsion of the torsion member 11, and when the torsion angle of the torsion member 11 reaches the first threshold, the first matching portion 121 of the elastic member 12 counteracts the connecting portion 112, and is twisted together with the torsion member 11 driven by the connecting portion 112, and the elastic member 12 participates in the torsion of the torsion member 11.
[0057] Therefore, during the operation of the stabilizer bar system 10, when the torsion angle of the torsion member 11 is small, the elastic member 12 does not participate in the torsion of the torsion member 11, and the stabilizer bar system 10 has a smaller stiffness. As the torsion angle of the torsion member 11 increases, the elastic member 12 participates in the torsion of the torsion member 11, and the stiffness of the stabilizer bar system 10 increases.
[0058] That is to say, during the operation of the stabilizer bar system 10, when the vehicle 1 has a small rollover risk, the stabilizer bar system 10 needs to have a small stiffness, so as to make the vehicle 1 have better comfort under the premise of reducing the risk of the vehicle 1 rolling. Since the torsion member 11 has a small torsion angle at this time, the elastic member 12 will not participate in the torsion of the torsion member 11, and the stabilizer bar system 10 has a small stiffness. When the vehicle 1 has a large rollover risk, the stabilizer bar system 10 needs to have a large stiffness, because the torsion member 11 will have a large torsion angle at this time, and the elastic member 12 will participate in the torsion of the torsion member 11 when the torsion angle of the torsion member 11 reaches the first threshold, and the overall stiffness of the stabilizer bar system 10 will increase. In this way, the stabilizer bar system 10 will have at least two stiffness values, and the timing of the change of its stiffness value can be appropriately adjusted as needed.
[0059] It is understandable that after the torsion member 11 recovers its deformation under the action of the shock absorber, etc., the elastic member 12 will automatically return to its initial state under the action of its own elastic potential energy.
[0060] The stabilizer bar system 10 provided in the present application can achieve that the torsion angle of the torsion member 11 is greater than or equal to a first threshold value when the first matching portion 121 of the elastic member 12 is against the connecting portion 112, so that the stabilizer bar system 10 has a smaller stiffness when the torsion angle of the torsion member 11 is less than the first threshold value, and has a larger stiffness when the torsion angle of the torsion member 11 is greater than or equal to the first threshold value. In this way, the stabilizer bar system 10 can automatically adjust its own stiffness value according to the actual operating conditions to improve the comfort of the vehicle 1 while reducing the risk of the vehicle 1 rolling.
[0061] like Figure 2 As shown, in some embodiments, the connecting portion 112 includes a first pin shaft 112a and a second pin shaft 112b, and the first pin shaft 112a and the second pin shaft 112b are arranged at intervals on the main body portion 111 at least along the axial direction Y of the elastic member 12. The first matching portion 121 includes a first through hole 121a and a second through hole 121b arranged at intervals, the first pin shaft 112a is configured to be able to pass through the first through hole 121a, and the second pin shaft 112b is configured to be able to pass through the second through hole 121b, the hole wall of the first through hole 121a is against the first pin shaft 112a on both sides along the circumferential direction X of the elastic member 12, the size of the second through hole 121b along the circumferential direction X is greater than the size of the second pin shaft 112b along the circumferential direction X, and when the torsion angle of the torsion member 11 is zero, the hole wall of the second through hole 121b is arranged at intervals from the second pin shaft 112b along the circumferential direction X.
[0062] The first pin shaft 112a and the second pin shaft 112b are arranged at intervals on the body part 111 at least along the axial direction Y of the elastic member 12, then, the first pin shaft 112a and the second pin shaft 112b can be arranged at intervals only along the axial direction Y of the elastic member 12, or the first pin shaft 112a and the second pin shaft 112b can be arranged at intervals along both the axial direction Y and the circumferential direction X of the elastic member 12. Optionally, the first pin shaft 112a or the second pin shaft 112b can be columnar, illustratively, the first pin shaft 112a or the second pin shaft 112b can be cylindrical or prismatic.
[0063] The first pin shaft 112a is inserted into the first through hole 121a, and the second pin shaft 112b is inserted into the second through hole 121b. The hole wall of the first through hole 121a is against the first pin shaft 112a on both sides along the circumferential direction X of the elastic member 12. When the torsion angle of the torsion member 11 is zero, the hole wall of the second through hole 121b is spaced from the second pin shaft 112b on both sides along the circumferential direction X. As the torsion angle of the torsion member 11 increases, the first pin shaft 112a and the first through hole 121a are spaced from each other. The hole walls of the second through hole 121a always abut against each other along the circumferential direction X, the elastic member 12 and one end close to the first through hole 121a are twisted along with the torsion member 11, and one end of the elastic member 12 close to the second through hole 121b slides relative to the elastic member 12 along the circumferential direction X until the torsion angle of the torsion member 11 increases to a first threshold value, the hole wall of the second through hole 121b on one side along the circumferential direction X abuts against the second pin shaft 112b, the elastic member 12 is twisted together with the torsion member 11, and the stiffness of the stabilizer bar system 10 increases.
[0064] Since the torsion member 11 may be twisted in two directions, the hole walls of the second through hole 121b are arranged at intervals from the second pin shaft 112b on both sides along the circumferential direction X. In this way, no matter in which direction the torsion member 11 is twisted, only when the torsion angle of the torsion member 11 reaches the first threshold value, the second pin shaft 112b and the hole wall of the second through hole 121b will offset each other, and the elastic member 12 will participate in the torsion of the torsion member 11.
[0065] It can be understood that, when the torsion angle of the torsion member 11 is zero, the farther the distance between the hole wall of the second through hole 121b and the second pin shaft 112b along the circumferential direction X, the larger the corresponding first threshold value. Since the distances between the hole wall of the second through hole 121b and the second pin shaft 112b on both sides along the circumferential direction X are not necessarily the same, the first threshold values are not necessarily the same during the torsion of the torsion member 11 in two directions, and the torsion member 11 may have two first threshold values. To this end, it can be set that when the torsion angle of the torsion member 11 is zero, the distances between the hole wall of the second through hole 121b and the second pin shaft 112b on both sides along the circumferential direction X are equal, and the first threshold values of the torsion member 11 in two opposite directions are equal.
[0066] Therefore, the first through hole 121a and the second through hole 121b of the first matching portion 121 are respectively matched with the first pin shaft 112a and the second pin shaft 112b of the connecting portion 112, which is beneficial to simplifying the structure of the connecting portion 112 and the elastic member 12.
[0067] like Figure 3 and Figure 4 As shown, in some embodiments, the elastic member 12 also includes a second matching portion 122, and the connecting portion 112 is configured to be able to counteract one of the first matching portion 121 and the second matching portion 122 when the torsion member 11 is twisted, so that the elastic member 12 is twisted together with the torsion member 11, and when the second matching portion 122 is matched with the connecting portion 112, the torsion angle of the torsion member 11 is greater than or equal to a second threshold value, and the second threshold value is not equal to the first threshold value.
[0068] The second matching portion 122 may have a similar structure to the first matching portion 121, so that when the torsion angle of the torsion member 11 reaches a second threshold, the second matching portion 122 abuts against the connecting portion 112, and the second threshold is not equal to the first threshold. In this case, the second threshold may be smaller than the first threshold, or the second threshold may be larger than the first threshold.
[0069] In this way, after the elastic member 12 and the torsion member 11 are installed, the first matching portion 121 or the second matching portion 122 of the elastic member 12 can be selectively matched with the connection portion 112 by adjusting the position of the elastic member 12 relative to the torsion member 11, and when the torsion angle of the torsion member 11 reaches the corresponding threshold, the first matching portion 121 or the second matching portion 122 abuts against the connection portion 112. When the first threshold and the second threshold are different and the connection portion 112 abuts against the first matching portion 121 and the second matching portion 122 respectively, the timing when the elastic member 12 participates in the torsion of the torsion member 11 is different, and the timing when the stiffness of the stabilizer bar system 10 increases is different.
[0070] It can be understood that when the first matching portion 121 of the elastic member 12 and the connecting portion 112 just begin to abut against each other so that the elastic member 12 begins to twist with the torsion member 11, that is, when the stiffness of the stabilizer bar system 10 begins to increase, the larger the torsion angle of the torsion member 11, the more conducive it is to improve the comfort of the vehicle 1. In other words, the larger the first threshold or the second threshold, the more conducive it is to improve the comfort of the vehicle 1; and when the first matching portion 121 of the elastic member 12 and the connecting portion 112 just begin to abut against each other so that the elastic member 12 begins to twist with the torsion member 11, that is, when the stiffness of the stabilizer bar system 10 begins to increase, the smaller the torsion angle of the torsion member 11, the more conducive it is to improve the accuracy of the steering angle during the steering process of the vehicle 1, and thus improve the steering stability of the vehicle 1. In other words, the smaller the first threshold or the second threshold, the more conducive it is to improve the steering stability of the vehicle 1. In this way, under different working conditions, the timing when the stiffness of the stabilizer bar system 10 needs to be increased is different. By reasonably setting the values of the first threshold and the second threshold, a better balance can be achieved between the comfort and steering accuracy of the vehicle 1.
[0071] Therefore, in the embodiment of the present application, the elastic member 12 is provided with a second matching portion 122, and the connecting portion 112 can be offset against one of the first matching portion 121 and the second matching portion 122. Since the first threshold value and the second threshold value of the torsion member 11 are not equal when the connecting portion 112 respectively offsets against the first matching portion 121 and the second matching portion 122, when the stabilizer bar system 10 is in different working conditions, the timing of increasing the stiffness of the stabilizer bar system 10 can be adjusted by selecting the first matching portion 121 or the second matching portion 122 of the elastic member 12 to match with the connecting portion 112, which is beneficial to improving the steering accuracy of the vehicle 1 and reducing the understeering degree of the vehicle 1 while ensuring the comfort of the vehicle 1.
[0072] In some embodiments, the second matching portion 122 is arranged and connected with the first matching portion 121 along the axial direction Y, and the elastic member 12 is configured to be movable along the axial direction Y to enable the first matching portion 121 or the second matching portion 122 to match with the connecting portion 112 .
[0073] The first matching portion 121 and the second matching portion 122 are connected along the axial direction Y, and the elastic member 12 can move along the axial direction Y, so that the elastic member 12 can selectively select any one of the first matching portion 121 and the second matching portion 122 to match with the connecting portion 112, so as to adjust the timing of the elastic member 12 participating in the torsion of the torsion member 11. Therefore, in this configuration, the elastic member 12 can switch between matching with the first matching portion 121 and matching with the second matching portion 122 by simply moving the elastic member 12 along the axial direction Y, which is conducive to improving the convenience of adjusting the stiffness of the stabilizer bar system 10.
[0074] Please continue reading Figure 3 and Figure 4In some embodiments, the connecting portion 112 includes a first pin shaft 112a and a second pin shaft 112b, and the first pin shaft 112a and the second pin shaft 112b are spaced apart from each other on the main body portion 111 at least along the axial direction Y of the elastic member 12. The elastic member 12 has a strip hole 12a and a matching hole 12b spaced apart from each other, and the strip hole 12a extends along the axial direction Y of the elastic member 12. The first pin shaft 112a is inserted into the strip hole 12a, and the two side walls of the strip hole 12a along the circumferential direction X of the elastic member 12 are in contact with the first pin shaft 112a. The matching hole 12b extends along the axial direction Y and includes a first matching portion 121 and a second matching portion 122 arranged along the axial direction Y. The distance between the hole walls on both sides of the first matching portion 121 along the circumferential direction X is smaller than the distance between the hole walls on both sides of the second matching portion 122 along the circumferential direction X. The second pin shaft 112b is passed through the matching hole 12b. When the torsion angle of the torsion member 11 is zero, the second pin shaft 112b is spaced from the hole walls on both sides of the first matching portion 121 along the circumferential direction X or the hole walls on both sides of the second matching portion 122 along the circumferential direction X.
[0075] The matching hole 12b includes a first matching portion 121 and a second matching portion 122, and the first matching portion 121 and the second matching portion 122 are arranged along the axial direction Y, so the first matching portion 121 and the second matching portion 122 can correspond to different hole sections of the matching hole 12b along the axial direction Y. The first matching portion 121 is adjacent to and communicates with the second matching portion 122, so that the second pin shaft 112b can slide between the first matching portion 121 and the second matching portion 122.
[0076] The two side walls of the strip hole 12a along the circumferential direction X of the elastic member 12 are in contact with the first pin shaft 112a, so the strip hole 12a of the elastic member 12 cannot move along the circumferential direction X relative to the torsion member 11, but because the strip hole 12a extends along the axial direction Y, the strip hole 12a of the elastic member 12 can move along the axial direction Y relative to the first pin shaft 112a.
[0077] The second pin shaft 112b is inserted into the matching hole 12b, and the second pin shaft 112b can selectively correspond to the first matching portion 121 or the second matching portion 122 of the matching hole 12b. When the second pin shaft 112b is matched with the first matching portion 121, the elastic member 12 is twisted together with the torsion member 11 when the torsion angle of the torsion member 11 reaches the first threshold value, and when the second pin shaft 112b is matched with the second matching portion 122, the elastic member 12 is twisted together with the torsion member 11 when the torsion angle of the torsion member 11 reaches the second threshold value. If the distance between the hole walls on both sides of the first matching portion 121 along the circumferential direction X is smaller than the distance between the hole walls on both sides of the second matching portion 122 along the circumferential direction X, then the first threshold corresponding to the first matching portion 121 is smaller than the second threshold corresponding to the second matching portion 122.
[0078] Since the strip hole 12a extends along the axial direction Y, and the first matching portion 121 and the second matching portion 122 are arranged along the axial direction Y, the elastic member 12 can be moved along the axial direction Y to switch the position where the matching hole 12b matches with the second pin shaft 112b, so that the second pin shaft 112b switches between matching with the first matching portion 121 and matching with the second matching portion 122, thereby adjusting the timing of increasing the stiffness of the stabilizer bar system 10. In this arrangement, it is only necessary to adjust the relative position of the elastic member 12 with respect to the main body 111 along the axial direction Y, which is conducive to simplifying the structure of the elastic member 12 and the torsion member 11.
[0079] like Figure 5 As shown, in some embodiments, the mating hole 12b also includes a third mating portion 123, the first mating portion 121, the second mating portion 122 and the third mating portion 123 are arranged along the axial direction Y and are interconnected, the distance between the hole walls on both sides of the third mating portion 123 along the circumferential direction X is greater than the distance between the hole walls on both sides of the second mating portion 122 along the circumferential direction X, and when the torsion angle of the torsion member 11 is zero, the second pin shaft 112b and the third mating portion 123 are spaced apart from the hole walls on both sides of the circumferential direction X.
[0080] The first matching portion 121, the second matching portion 122 and the third matching portion 123 are arranged along the axial direction Y, and any one of the first matching portion 121, the second matching portion 122 and the third matching portion 123 can be arranged between the other two. Since the distance between the hole walls on both sides of the third matching portion 123 along the circumferential direction X is greater than the distance between the hole walls on both sides of the second matching portion 122 along the circumferential direction X, when the third matching portion 123 abuts against the second pin 112b, the torsion angle of the torsion member 11 is greater than the second threshold value. In this way, by selecting the first matching portion 121, the second matching portion 122 or the third matching portion 123 of the elastic member 12 to match the second pin 112b, the elastic member 12 can be realized to participate in the torsion of the elastic member 12 at three different times, that is, the stiffness of the stabilizer bar system 10 is increased at three different times.
[0081] Therefore, the matching hole 12b is also provided with a third matching portion 123, and the first matching portion 121, the second matching portion 122 and the third matching portion 123 are arranged along the axial direction Y, and the distance between the hole walls on both sides of the third matching portion 123 along the circumferential direction X is greater than the distance between the hole walls on both sides of the second matching portion 122 along the circumferential direction X. According to actual working conditions, the first matching portion 121, the second matching portion 122 or the third matching portion 123 of the elastic member 12 can be selected to match with the second pin shaft 112b to adjust the stiffness of the stabilizer bar system 10 at multiple appropriate times, which is beneficial to further improve the comfort and steering stability of the vehicle 1.
[0082] It is understandable that the matching hole 12b can also be provided with other matching parts, so that the elastic member 12 can be matched with the second pin shaft 112b from more parts, so that when the torsion angle of the torsion member 11 reaches a suitable degree, the elastic member 12 can participate in the torsion of the torsion member 11, and the stiffness of the stabilizer bar system 10 can change at more opportunities, thereby improving the control accuracy and matching of the stabilizer bar system 10. The specific setting can be made according to actual needs.
[0083] like Figure 6 and Figure 7 As shown, in some embodiments, the first matching portion 121 has a first center plane 121c extending along the axial direction Y and a first side wall 1211 and a second side wall 1212 opposite to each other in the circumferential direction X, and the first side wall 1211 and the second side wall 1212 are symmetrically arranged relative to the first center plane 121c, and the second matching portion 122 has a second center plane 122a extending along the axial direction Y and a third side wall 1221 and a fourth side wall 1222 opposite to each other in the circumferential direction X, and the third side wall 1221 and the fourth side wall 1222 are symmetrically arranged relative to the second center plane 122a. The first center plane 121c coincides with the second center plane 122a or has a spacing therebetween.
[0084] When the first matching portion 121 is matched with the second pin shaft 112b, the torsion member 11 may be twisted in two opposite directions to achieve the second pin shaft 112b to abut against the first side wall 1211 or the second side wall 1212. When the torsion angle of the torsion member 11 is zero and the distances between the second pin shaft 112b and the first side wall 1211 and the second side wall 1212 are equal, when the torsion angle of the torsion member 11 reaches a first threshold value during the twisting process of the torsion member 11 in opposite directions, the second pin shaft 112b abuts against the first side wall 1211 or the second side wall 1212 of the first matching portion 121, and the two first threshold values of the torsion angle of the torsion member 11 twisted in two opposite directions are equal.
[0085] Similarly, when the second matching portion 122 is matched with the second pin shaft 112b, when the torsion angle of the torsion member 11 is zero, and the distances between the second pin shaft 112b and the third side wall 1221 and the fourth side wall 1222 are equal, when the torsion angle of the torsion member 11 reaches a second threshold value during the torsion of the torsion member 11 in opposite directions, the second pin shaft 112b is abutted against the third side wall 1221 or the fourth side wall 1222 of the second matching portion 122, and the two second threshold values of the torsion angle of the torsion member 11 twisted in opposite directions are equal.
[0086] In the case of arranging the first center plane 121c to coincide with the second center plane 122a, by reasonably setting a suitable initial position of the second pin shaft 112b relative to the matching hole 12b, when the elastic member 12 switches the first matching portion 121 or the second matching portion 122 to match with the second pin shaft 112b, it is only necessary to move the elastic member 12 along the axial direction Y, so that the two first thresholds of the torsion member 11 twisting in opposite directions are equal, and the two second thresholds of the torsion member 11 twisting in opposite directions are equal. In this way, it is helpful to simplify the complexity of the control of the vehicle 1 and improve the stability of the operation of the vehicle 1.
[0087] The first center plane 121c and the second center plane 122a have a distance d, and the distance d between the first center plane 121c and the second center plane 122a can be set to be very small. In the process of the elastic member 12 switching the first matching part 121 or the second matching part 122 to match with the second pin shaft 112b, it is only necessary to move the elastic member 12 along the axial direction Y to achieve a small difference between the two first thresholds of the torsion member 11 twisting in opposite directions, and a small difference between the two second thresholds of the torsion member 11 twisting in opposite directions.
[0088] Of course, alternatively, the distance d between the first center plane 121c and the second center plane 122a can be set to be larger, for example, d≥10mm, so that the first center plane 121c and the second center plane 122a are obviously staggered in the direction of the circumferential direction X, thereby making the abutment and fit between the second pin shaft 112b and the first matching portion 121 and the second matching portion 122 asymmetric in the two directions of the circumferential direction X, that is, the stiffness curves of the torsion member 11 in the two directions of the circumferential direction X are different, so that it can adapt to and match more scenarios.
[0089] In some embodiments, the distance d between the first center plane 121c and the second center plane 122a satisfies: 0<d≤1mm.
[0090] Optionally, d can be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm or 1 mm, etc.
[0091] After systematic analysis and long-term practice, the inventors discovered that by setting 0<d≤1mm, that is, allowing a certain error in the relevant dimensions of the first matching portion 121 and the second matching portion 122 during the processing of the elastic member 12, it is possible to achieve that when the elastic member 12 switches the first matching portion 121 or the second matching portion 122 to match with the second pin shaft 112b, it is only necessary to move the elastic member 12 along the axial direction Y, so that the two first thresholds of twisting of the torsion member 11 in opposite directions are slightly different, and the two second thresholds of twisting of the torsion member 11 in opposite directions are slightly different, which is beneficial to reducing the processing difficulty of the elastic member 12.
[0092] like Figure 8 As shown, in some embodiments, the first side wall 1211 and / or the second side wall 1212 are inclined relative to the first center plane 121c.
[0093] The first side wall 1211 is inclined relative to the first center plane 121 c . Since the first side wall 1211 and the second side wall 1212 are symmetrically arranged relative to the first center plane 121 c , the second side wall 1212 is also inclined relative to the first inclined plane.
[0094] In this way, the first matching portion 121 matches with the second pin shaft 112b at different positions along the axial direction Y, and the first threshold value of the torsion angle of the torsion member 11 when the corresponding first side wall 1211 or the second side wall 1212 is against the second pin shaft 112b is different. In this way, the different timings at which the first matching portion 121 of the elastic member 12 participates in the torsion of the torsion member 11 can be steplessly adjusted, that is, the timing of increasing the stiffness of the stabilizer bar system 10 can be steplessly adjusted, which is beneficial to further improve the adaptability of the stabilizer bar system 10 to different working conditions, so as to improve the comfort and stability of the vehicle 1.
[0095] Please continue reading Figure 8 In some embodiments, the third side wall 1221 and / or the fourth side wall 1222 are inclined relative to the second center plane 122a.
[0096] Since the third side wall 1221 and the fourth side wall 1222 are symmetrically arranged relative to the second center plane 122a, if the third side wall 1221 is inclined relative to the second center plane 122a, the fourth side wall 1222 is also inclined relative to the second center plane 122a.
[0097] The second matching portion 122 matches with the second pin shaft 112b at different positions along the axial direction Y, and the second threshold value of the torsion angle of the torsion member 11 when the corresponding third side wall 1221 or the fourth side wall 1222 is against the second pin shaft 112b is different. In this way, the different timings at which the second matching portion 122 of the elastic member 12 participates in the torsion of the torsion member 11 can be steplessly adjusted, that is, the timing of increasing the stiffness of the stabilizer bar system 10 can be steplessly adjusted, which is beneficial to further improve the adaptability of the stabilizer bar system 10 to different working conditions, so as to improve the comfort and stability of the vehicle 1.
[0098] like Fig. 9 As shown, in some embodiments, the stabilizer bar system 10 further includes a driving member 13, which is connected to the elastic member 12 and can drive the elastic member 12 to move so that the second pin shaft 112b is engaged with the first engaging portion 121 or the second engaging portion 122 of the engaging hole 12b.
[0099] The driving member 13 can be a component such as a motor that can drive the elastic member 12 to move along the axial direction Y. The driving member 13 drives the elastic member 12 to move along the axial direction Y, so as to select the corresponding position of the first matching portion 121 or the second matching portion 122 of the elastic member 12 to match with the second pin 112b, and adjust the timing of increasing the stiffness of the stabilizer bar system 10. In this way, the movement of the elastic member 12 along the axial direction Y is realized by the driving member 13, which is more labor-saving and convenient to control the distance and position of the elastic member 12 moving along the axial direction Y. In addition, the elastic member 12 has a position holding and locking function, for example, the position holding and locking function of the elastic member 12 is realized by a ratchet pawl structure or by the driving member 13.
[0100] In some embodiments, the material of the elastic member 12 includes silicone or rubber.
[0101] It is understandable that both silicone and rubber have a certain elasticity, so after the torsion member 11 recovers its deformation, the elastic member 12 can also recover its deformation under the action of its own elastic force. Since silicone and rubber have a large elastic modulus, after the elastic member 12 participates in the torsion of the torsion member 11, the stiffness of the stabilizer bar system 10 is greatly increased.
[0102] Therefore, the material of the elastic member 12 includes rubber or silicone, which is beneficial for the elastic member 12 to restore its deformation in time after the torsion angle of the torsion member 11 is restored, and to greatly increase the stiffness of the stabilization system when the elastic member 12 participates in the torsion of the torsion member 11.
[0103] Please continue reading Fig. 9 In some embodiments, the stabilizer bar system 10 further includes a clip 14 , which is disposed through the main body 111 and is vulcanized to the main body 111 .
[0104] The clamping member 14 may be a clamp, and the clamping member 14 is arranged to pass through the main body 111 . The clamping member 14 can be connected to the frame of the vehicle 1 to support the torsion member 11 .
[0105] The clip 14 is vulcanized with the main body 111, and the main body 111 is connected with the clip 14 through the rubber layer. During the torsion of the torsion member 11, the elastic deformation of the rubber layer can realize the torsion of the torsion member 11 relative to the clip 14, and during the torsion angle recovery of the torsion member 11, the recovery deformation of the rubber layer can realize the reverse torsion of the torsion member 11 relative to the clip 14. In this way, during the torsion of the torsion member 11, the friction force of the torsion member 11 relative to the clip 14 is reduced, and the wear and noise of the torsion member 11 are reduced.
[0106] like Fig. 9 and Fig.10As shown, in some embodiments, the main body 111 includes a first connecting rod 1111, a second connecting rod 1112 and a third connecting rod 1113, the second connecting rod 1112 and the third connecting rod 1113 are respectively hinged at both ends of the first connecting rod 1111, the connecting portion 112 is arranged on the first connecting rod 1111, and the elastic member 12 is sleeved on the first connecting rod 1111.
[0107] In this way, the third connecting rod 1113 and the second connecting rod 1112 can be connected to the shock absorbers 20 on both sides of the vehicle 1 respectively, and the third connecting rod 1113 and the second connecting rod 1112 are respectively hinged at both ends of the first connecting rod 1111. The displacement of the shock absorber 20 in the up-down direction can be transmitted to the first connecting rod 1111 through the third connecting rod 1113 or the second connecting rod 1112, and the roll degree and risk of the vehicle 1 can be reduced by the torsion of the first connecting rod 1111. The elastic member 12 is sleeved on the first connecting rod 1111 to increase the stiffness of the first connecting rod 1111 in a timely manner during the torsion of the first connecting rod 1111.
[0108] Therefore, the main body 111 includes a first connecting rod 1111, a second connecting rod 1112 and a third connecting rod 1113, and the second connecting rod 1112 and the third connecting rod 1113 are respectively hinged to the two ends of the first connecting rod 1111, which is beneficial to further improve the stability of the stabilizer bar system 10.
[0109] like Figure 1 and Fig.10 As shown, the vehicle 1 provided in the second aspect of the embodiment of the present application includes the stabilizer bar system 10 provided in any of the above embodiments.
[0110] The vehicle 1 provided according to the embodiment of the present application also includes a shock absorber 20, and the two ends of the stabilizer bar system 10 are respectively connected to the shock absorbers 20 on both sides of the vehicle 1, so that when the shock absorber 20 generates displacement, the displacement is transmitted to the stabilizer bar system 10, and the risk of the vehicle 1 rolling over is reduced through the torsion of the stabilizer bar system 10.
[0111] The vehicle 1 provided in the embodiment of the present application adopts the stabilizer bar system 10 provided in the embodiment of the present application. During the driving process of the vehicle 1, the stabilizer bar system 10 can automatically adjust its own stiffness value according to the actual operating conditions, so as to improve the comfort of the vehicle 1 while reducing the risk of rollover of the vehicle 1.
[0112] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A stabilizer bar system, characterized in that: include: The torsion member comprises a main body and a connecting portion, wherein the connecting portion is arranged on the main body; An elastic member is sleeved on the main body, the elastic member includes a first matching portion, and the connecting portion is configured to be able to resist against the first matching portion when the torsion member is twisted, so that the elastic member twists along with the torsion member, and when the first matching portion resists against the connecting portion, the torsion angle of the torsion member is greater than or equal to a first threshold value.
2. The stabilizer bar system according to claim 1, characterized in that: The connecting portion comprises a first pin and a second pin, wherein the first pin and the second pin are arranged on the main body portion at intervals at least along the axial direction of the elastic member; The first matching portion includes a first through hole and a second through hole arranged at intervals, the first pin shaft is configured to be able to be inserted into the first through hole, and the second pin shaft is configured to be able to be inserted into the second through hole, the hole wall of the first through hole is against the first pin shaft on both sides along the circumference of the elastic member, the size of the second through hole along the circumference is larger than the size of the second pin shaft along the circumference, and when the torsion angle of the torsion member is zero, the hole wall of the second through hole and the second pin shaft are spaced apart along the circumference.
3. The stabilizer bar system according to claim 1, characterized in that: The elastic member also includes a second matching portion, and the connecting portion is configured to be able to counteract one of the first matching portion and the second matching portion when the torsion member is twisted, so that the elastic member twists along with the torsion member, and when the second matching portion cooperates with the connecting portion, the torsion angle of the torsion member is greater than or equal to a first threshold value, and the second threshold value is not equal to the first threshold value.
4. The stabilizer bar system according to claim 3, characterized in that: The second matching portion is arranged and communicated with the first matching portion along the axial direction, and the elastic member is configured to be movable along the axial direction so that the first matching portion or the second matching portion matches with the connecting portion.
5. The stabilizer bar system according to claim 3, characterized in that: The connecting portion comprises a first pin shaft and a second pin shaft, wherein the first pin shaft and the second pin shaft are arranged on the main body portion at least at intervals along the axial direction of the elastic member; The elastic member has a strip hole and a matching hole arranged at intervals, the strip hole extends along the axial direction of the elastic member; the first pin shaft is inserted into the strip hole, and the two side walls of the strip hole along the circumference of the elastic member are in contact with the first pin shaft; The mating hole extends along the axial direction and includes the first mating portion and the second mating portion arranged along the axial direction, the distance between the hole walls of the first mating portion along the circumferential direction is smaller than the distance between the hole walls of the second mating portion along the circumferential direction, the second pin shaft passes through the mating hole, and when the torsion angle of the torsion member is zero, the second pin shaft is spaced from the hole walls of the first mating portion along the circumferential direction or the hole walls of the second mating portion along the circumferential direction.
6. The stabilizer bar system according to claim 5, characterized in that: The mating hole also includes a third mating portion, the first mating portion, the second mating portion and the third mating portion are arranged and connected along the axial direction, the distance between the hole walls of the third mating portion along both sides of the circumferential direction is greater than the distance between the hole walls of the second mating portion along both sides of the circumferential direction, and when the torsion angle of the torsion member is zero, the second pin shaft and the third mating portion are spaced apart from each other along the hole walls on both sides of the circumferential direction.
7. The stabilizer bar system according to claim 5 or 6, characterized in that: The first matching portion has a first center plane and a first side wall and a second side wall opposite to each other along the circumferential direction, and the first side wall and the second side wall are symmetrically arranged relative to the first center plane. The second matching portion has a second center plane and a third side wall and a fourth side wall opposite to each other along the circumferential direction, and the third side wall and the fourth side wall are symmetrically arranged relative to the second center plane.
8. The stabilizer bar system according to claim 7, characterized in that: The first center plane and the second center plane extend in the axial direction, the first center plane and the second center plane are located in the same plane or have a distance therebetween, and the distance d between the first center plane and the second center plane satisfies: 0<d≤1mm.
9. The stabilizer bar system according to claim 7, characterized in that: The first side wall and / or the second side wall are arranged obliquely relative to the first center plane; and / or the third side wall and / or the fourth side wall are arranged obliquely relative to the second center plane; in particular, the first center plane and the second center plane are not parallel.
10. The stabilizer bar system according to any one of claims 5 to 9, characterized in that The stabilizer bar system further includes a driving member, which is connected to the elastic member and can drive the elastic member to move so that the second pin shaft is matched with the first matching portion or the second matching portion of the matching hole.
11. The stabilizer bar system according to any one of claims 1 to 10, characterized in that: The material of the elastic member includes silicone or rubber.
12. The stabilizer bar system according to any one of claims 1 to 11, characterized in that The stabilizer bar system further comprises a clamping piece, which is passed through the main body and vulcanized to the main body.
13. The stabilizer bar system according to any one of claims 1 to 12, characterized in that The main body comprises a first connecting rod, a second connecting rod and the third connecting rod, the second connecting rod and the third connecting rod are respectively hinged at two ends of the first connecting rod, the connecting part is arranged on the first connecting rod, and the elastic member is sleeved on the first connecting rod.
14. A vehicle, characterized in that: Comprising a stabiliser bar system as claimed in any one of claims 1 to 13.