Stabilizer bar, transverse stabilization system and vehicle

Abstract

The invention discloses a stabilizer bar, a transverse stabilization system and a vehicle. The stabilizer bar includes: a first bar body; a second rod body; one end of the first rod body is coaxially connected to one end of the transmission device, one end of the second rod body is coaxially connected to the other end of the transmission device, the transmission device is provided with a first cavity, a middle transmission component is arranged in the first cavity, and the first rod body or the second rod body drives the middle transmission component to axially move when rotating; the damping device is provided with a second chamber, the first chamber is communicated with the second chamber, fluid flows between the first chamber and the second chamber, a first electrode and a second electrode are arranged in the second chamber, an electrode gap is formed between the first electrode and the second electrode, and the second chamber is divided into two chambers by the electrode gap; the electrorheological device is used for performing electrorheological on flowing fluid under different working conditions; the middle transmission component axially moves to extrude fluid in the first cavity to the second cavity, and the fluid sequentially flows through the cavities and then flows into the first cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a stabilizer bar, a lateral stability system and a vehicle. Background Art

[0002] At present, stabilizer bars increasingly appear in the chassis of various vehicles to meet the growing demands of automotive users for vehicle performance and driving experience. However, passive stabilizer bars have the following problems: Although passive stabilizer bars have a simple structure and low cost, they cannot change their stiffness, cannot balance handling stability and comfort, and cannot adapt to diverse working conditions. At the same time, although active stabilizer bars can adjust their stiffness in real time, they cannot be effectively promoted due to problems such as their complex structure and control logic. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a stabilizer bar that has three working modes: decoupling, semi-decoupling, and locking. When in the semi-decoupling working mode, the stiffness is adjustable, and the adjustable range is wide and the regulation is fine, greatly improving handling stability and comfort.

[0004] The present invention further provides a lateral stability system.

[0005] The present invention further provides a vehicle.

[0006] The stabilizer bar according to the first aspect embodiment of the present invention includes: a first rod body; a second rod body; a transmission device, one end of the first rod body is coaxially connected to one end of the transmission device, and one end of the second rod body is coaxially connected to the other end of the transmission device. The transmission device has a first chamber, and an intermediate transmission member is arranged in the first chamber. When the first rod body or the second rod body rotates, it drives the intermediate transmission member to axially move; a damping device, the damping device has a second chamber, the first chamber and the second chamber are communicated and fluid flows between the first chamber and the second chamber. A first electrode and a second electrode are arranged in the second chamber, and an electrode gap is formed between the first electrode and the second electrode, and the electrode gap divides the second chamber into two chambers for performing electrorheological effect on the flowing fluid under different working conditions; the axial movement of the intermediate transmission member squeezes the fluid in the first chamber into the second chamber and flows through the chambers in sequence and then flows into the first chamber.

[0007] According to the stabilizer bar of the embodiment of the present invention, when the first rod body or the second rod body rotates along the axis, it drives the intermediate transmission member to axially move in the first chamber, squeezing the fluid in the first chamber to flow into the second chamber and sequentially flow through multiple chambers. During this period, by changing the electric field magnitude of the electrode gap, the viscosity of the fluid is changed, which can provide different resistances for the axial movement of the piston, thereby effectively realizing the function of stiffness adjustment. Among them, the present invention only needs to control the input current of the first electrode and the second electrode. Compared with the prior art, the failure risk of related damping members is completely avoided, and the reliability and stability of the entire system are effectively improved. Moreover, the stiffness of the stabilizer bar can be changed only by changing the input current of the first electrode and the second electrode, and the control logic and control method are simple. The stabilizer bar of the present invention has three working modes: decoupling, semi-decoupling, and locking. When in the semi-decoupling working mode, the stiffness is adjustable, and the adjustable range is wide and the regulation is dense, greatly improving the handling stability and comfort, and can be applied to various applicable scenarios.

[0008] According to some embodiments of the present invention, a first flow path and a second flow path are provided between the first chamber and the second chamber. The first chamber, the first flow path, the second chamber, and the second flow path are sequentially connected to form a circulation loop. When one of the first flow path and the second flow path is the outflow flow path of the first chamber, the other of the first flow path and the second flow path is the return flow path of the first chamber.

[0009] According to some embodiments of the present invention, the two ends of the intermediate transmission member along the axis respectively define a first sub-chamber and a second sub-chamber with the two ends of the first chamber. The first sub-chamber and the second sub-chamber are filled with fluid. When the intermediate transmission member axially moves, it squeezes the fluid in the first sub-chamber to flow into the second chamber through the first flow path or squeezes the fluid in the second sub-chamber to flow into the second chamber through the second flow path.

[0010] According to some embodiments of the present invention, a first through-flow port and a second through-flow port are respectively formed at the two ends of the first chamber along the axis, and a third through-flow port and a fourth through-flow port are respectively formed at the two ends of the second chamber along the fluid flow direction. The first through-flow port and the third through-flow port respectively communicate with the two ends of the first flow path, and the second through-flow port and the fourth through-flow port respectively communicate with the two ends of the second flow path.

[0011] According to some embodiments of the present invention, the damping device is disposed on one side of the transmission device; further included is a pipeline assembly, the pipeline assembly including a first pipeline and a second pipeline, one ends of the first pipeline and the second pipeline are respectively connected to the axial two ends of the first chamber and the other ends of the first pipeline and the second pipeline are respectively connected to the two ends of the second chamber along the fluid flow direction, a first flow path is formed in the first pipeline, and a second flow path is formed in the second pipeline.

[0012] According to some embodiments of the present invention, the transmission device further includes a first transmission member and a second transmission member, the first transmission member is configured with the first chamber, a part of the second transmission member is disposed in the first chamber, the first transmission member is rigidly connected to the first rod body, the second transmission member is rigidly connected to a transition sleeve, the transition sleeve is rigidly connected to the second rod body, and the intermediate transmission member is respectively in transmission connection with the first transmission member and the second transmission member and can axially move cyclically relative to the first transmission member and the second transmission member.

[0013] According to some embodiments of the present invention, the intermediate transmission member is sleeved on the second transmission member located in the first chamber and can axially move in a limited manner along the second transmission member, and the intermediate transmission member and the first transmission member are in transmission connection through a cyclic transmission assembly.

[0014] According to some embodiments of the present invention, the cyclic transmission assembly includes balls, ball slides and reversers, a ball slide is configured between the inner wall of the first transmission member and the outer wall of the intermediate transmission member, a plurality of the balls are disposed in the ball slide and reversers are respectively disposed at the two ends of the ball slide, and the intermediate transmission member and the first transmission member are connected through the balls.

[0015] According to some embodiments of the present invention, the first transmission member includes a transmission housing and transmission end covers one and two sealed at the two ends of the transmission housing, the transmission housing, the transmission end cover one and the transmission end cover two jointly define the first chamber, the transmission end cover one is rigidly connected to the first rod body, and a part of the second transmission member penetrates through the transmission end cover two and is disposed in the first chamber.

[0016] According to some embodiments of the present invention, the first electrode and the second electrode are a pair of electrodes, at least two pairs of the electrodes are spaced apart and disposed in the second chamber along the fluid flow direction and divide the second chamber into at least three chambers.

[0017] According to some embodiments of the present invention, the first electrode and the second electrode are a pair of electrodes, and n pairs of such electrodes are sequentially arranged in the second chamber along the fluid flow direction. Each pair of electrodes forms an electrode gap, and the n electrode gaps divide the second chamber into n + 1 chambers.

[0018] According to some embodiments of the present invention, a protrusion is formed at at least one end of the second chamber along the fluid flow direction, the extending direction of the protrusion is parallel to the fluid flow direction, the first electrode is annularly arranged on the side wall of the second chamber, and the second electrode is annularly arranged on the protrusion.

[0019] According to some embodiments of the present invention, the damping device includes a damping housing and damping end caps one and two sealed at both ends of the damping housing. The damping housing, the damping end cap one, and the damping end cap two jointly define the second chamber. At least one of the damping end cap one and the damping end cap two forms the protrusion, and the first electrode is annularly arranged on the inner wall of the housing.

[0020] According to the lateral stability system of the second aspect embodiment of the present invention, the lateral stability system includes a control device and the stabilizer bar. The control device is electrically connected to the first electrode and the second electrode, and the control device is used to be electrically connected to a plurality of external sensors to control the electric field strength of the electrode gap.

[0021] According to the vehicle of the third aspect embodiment of the present invention, the vehicle includes the stabilizer bar.

[0022] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. Description of the Drawings

[0023] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein: Figure 1 is a schematic structural diagram of a lateral stability system according to an embodiment of the present invention; Figure 2 is a schematic structural diagram of a stabilizer bar according to an embodiment of the present invention; Figure 3 is a schematic structural diagram of a transmission device according to an embodiment of the present invention; Figure 4 is a schematic structural diagram of a damping device according to an embodiment of the present invention; Figure 5 is a schematic structural diagram of a first rod body and a second rod body according to an embodiment of the present invention; Figure 6Schematic diagram of the relationship between the stabilizer bar stiffness and vehicle speed according to an embodiment of the present invention.

[0024] Reference numerals: 1. First rod body; 2. Second rod body; 3. Transmission device; 31. First chamber; 3101. First sub-chamber; 3102. Second sub-chamber; 32. Intermediate transmission member; 33. First flow port; 34. Second flow port; 35. First transmission member; 3501. Transmission housing; 3502. First transmission end cover; 3503. Second transmission end cover; 36. Second transmission member; 37. Circulating transmission assembly; 3701. Ball; 3702. Ball slideway; 3703. Reverser; 38. Transition sleeve; 4. Damping device; 41. Second chamber; 4101. Third sub-chamber; 4102. Fourth sub-chamber; 4103. Fifth sub-chamber; 42. First electrode; 43. Second electrode; 44. Electrode gap; 45. Third flow port; 46. Fourth flow port; 47. Protrusion; 48. Damping housing; 49. First damping end cover; 50. Second damping end cover; 5. First flow path; 6. Second flow path; 7. Pipeline assembly; 71. First pipeline; 72. Second pipeline; 8. Control device; 9. Support assembly. Detailed implementation manners

[0025] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention will be described in detail below.

[0026] Below, refer to Figures 1-6 Describe the stabilizer bar according to an embodiment of the present invention.

[0027] As Figures 1-5 shown, the stabilizer bar includes: a first rod body 1, a second rod body 2, a transmission device 3, and a damping device 4.

[0028] One end of the first rod body 1 is coaxially connected to one end of the transmission device 3, and one end of the second rod body 2 is coaxially connected to the other end of the transmission device 3.

[0029] Specifically, one end of the first rod body 1 is coaxially connected to one end of the transmission device 3. The end of the first rod body 1 far from the transmission device 3 is connected to one end of a link (i.e., anti-roll bar link). The other end of the link is connected to a shock absorber or a lower control arm on one side in the vehicle width direction. One end of the second rod body 2 is coaxially connected to the other end of the transmission device 3. The end of the second rod body 2 far from the transmission device 3 is connected to one end of another link. The other end of the link is connected to a shock absorber or a lower control arm on the other side in the vehicle width direction. The first rod body 1 and the second rod body 2 can be installed on the vehicle frame or sub-frame through their respective support assemblies 9.

[0030] Among them, both the first rod body 1 and the second rod body 2 include a torsion rod and a torque arm. The torsion rod extends laterally on the vehicle and is arranged along a common transverse axis, and the torsion rods of the first rod body 1 and the second rod body 2 are coaxially arranged. The inner ends of the torsion rods of the first rod body 1 and the second rod body 2 are respectively coaxially connected to the transmission device 3. The torque arm extends from the outer end of the torsion rod at a relatively large angle with respect to the axis of the common transverse axis and is substantially longitudinally located in the vehicle. At the end of the torque arm far from the torsion rod, it is connected to the shock absorber or the lower control arm through a Panhard rod.

[0031] Furthermore, the transmission device 3 has a first chamber 31, and an intermediate transmission member 32 is arranged in the first chamber 31. When the first rod body 1 or the second rod body 2 rotates along the axis, it drives the intermediate transmission member 32 to move axially. It should be noted that the axial movement of the intermediate transmission member 32 refers to the axial movement along the above-mentioned axis.

[0032] Specifically, when one end of the first rod body 1 rotates in one direction and a displacement difference is generated with one end of the second rod body 2, or when one end of the second rod body 2 rotates in one direction and a displacement is generated with one end of the first rod body 1, it will drive the intermediate transmission member 32 to move axially in the first chamber 31. It should be noted that the axial movement direction of the intermediate transmission member 32 in the first chamber 31 depends on the direction of the force received by the first rod body 1 or the second rod body 2.

[0033] Furthermore, the damping device 4 has a second chamber 41. The first chamber 31 and the second chamber 41 are connected and communicate with each other, and fluid flows between the first chamber 31 and the second chamber 41. A first electrode 42 and a second electrode 43 are arranged in the second chamber 41. An electrode gap 44 for the fluid to pass through is formed between the first electrode 42 and the second electrode 43, and the electrode gap 44 divides the second chamber 41 into two chambers for performing electrorheological effect on the flowing fluid under different working conditions. It should be noted that the electrode gap 44 divides the second chamber 41 into two chambers, and the two chambers are connected.

[0034] Specifically, the first electrode 42 and the second electrode 43 are respectively connected to a power supply through a control device 8. The first electrode 42 is connected to a positive voltage through the control device 8, and the second electrode 43 is connected to a negative voltage through the control device 8, so that an electric field will be formed in the electrode gap 44. The magnitude of the electric field strength is determined by the current input through the control device 8. When the fluid flows through the electrode gap 44, it undergoes an electrorheological effect under the action of the electric field and changes the viscosity (damping characteristic) of the fluid. That is, the electric field strength generated by the electrode gap 44 changes the viscosity of the fluid flowing through the second chamber 41.

[0035] It can be understood that the fluid in this embodiment is a special electrorheological fluid, which has the characteristics of being able to be quickly and reversibly regulated by an external electric field. Specifically, in the absence of an electric field, the electrorheological fluid behaves as a Newtonian fluid with low viscosity; when an electric field is applied, the interaction between the particles is enhanced, forming a chain structure, causing the viscosity of the liquid to increase sharply, and even showing solid characteristics. This liquid-solid transition can be completed in milliseconds, and when the electric field is removed, the material will quickly return to its original liquid state.

[0036] Further, when the first rod body 1 or the second rod body 2 rotates along the axis, the intermediate transmission member 32 is driven to move axially, and the fluid in the first chamber 31 is squeezed to flow into the second chamber 41, and then flows through the two chambers in sequence and flows into the first chamber 31. In this embodiment, when the first rod body 1 or the second rod body 2 rotates along the axis, it will drive the intermediate transmission member 32 to move axially in the first chamber 31, and squeeze the fluid in the first chamber 31 to flow into the second chamber 41. When the fluid flowing into the second chamber 41 flows from the chamber on one side of the electrode gap 44 to the chamber on the other side of the electrode gap 44, at this time, by changing the size of the electric field formed by the electrode gap 44, the fluid will produce an electrorheological effect when flowing through the electrode gap 44, so that the viscosity of the fluid changes. After that, the fluid in the second chamber 41 will flow back to the first chamber 31, providing a certain resistance to the axial movement of the intermediate transmission member 32, and realizing the adjustment of stiffness. For example, if the fluid acquires a greater viscosity, it is equivalent to that the flow of the fluid is subject to a greater resistance, making it less easy for the fluid to circulate, thereby hindering the movement of the intermediate transmission member 32, which is equivalent to providing resistance for the axial movement of the intermediate transmission member 32. That is, the viscosity of the fluid is determined by the damping of the axial movement of the intermediate transmission member 32. It can be understood that since the fluid has an incompressible property, a vacuum environment cannot be formed in the first chamber 31 and the second chamber 41. Therefore, when the fluid is less easy to circulate, resistance can be provided for the axial movement of the intermediate transmission member 32. In this way, by changing the viscosity of the fluid, different resistances can be provided for the axial movement of the intermediate transmission member 32, thereby achieving the adjustment of the stiffness of the stabilizer bar. As an example, the stiffness of the stabilizer bar can be adjusted in the range of 30N / mm~100N / mm.

[0037] It should be noted that the electrode gap 44 mentioned above divides the second chamber 41 into two chambers, which is only one embodiment of the present invention, and the number of chambers can be determined according to the number of electrode gaps 44 actually formed.

[0038] like Figure 6 As shown, the stabilizer bar of this embodiment uses vehicle control parameters such as vehicle speed as input to achieve different stiffness adjustments, as follows: When the vehicle is in the idle condition, which is common in scenarios such as traffic jams and parking, the demand for the use of the stabilizer bar is relatively low. There is no input current in both the first electrode 42 and the second electrode 43, and the fluid in the first chamber 31 and the second chamber 41 can flow freely. At this time, the stabilizer bar is in the decoupled state. That is, the function of the stabilizer bar is a disconnect-type stabilizer bar.

[0039] When the vehicle is in the low-speed condition, a real-time adjustable current is input to the first electrode 42 and the second electrode 43. An electric field will be formed in the electrode gap 44. When the first rod body 1 and the second rod body 2 move, the fluid in the first chamber 31 flows into the damping device 4 and undergoes an electrorheological effect when flowing through the electrode gap 44, generating a damping force that changes in real time, thereby changing the stiffness of the stabilizer bar in real time. At this time, the stabilizer bar is in the semi-decoupled state, that is, the function of the stabilizer bar is an active stabilizer bar.

[0040] When the vehicle is in the high-speed condition, when the first rod body 1 and the second rod body 2 move, the input current of the first electrode 42 and the second electrode 43 is kept at the maximum. At this time, the stiffness of the stabilizer bar is kept at the maximum and is in the locked state, that is, the function of the stabilizer bar is a passive stabilizer bar.

[0041] When the vehicle is in the off-road condition and drives over a severely pitted or bumpy road surface, there may be a phenomenon that a single wheel is suspended, which greatly reduces the vehicle's passability. At this time, the current input to the damping device 4 can be turned off. At this time, the fluid in the first chamber 31 and the second chamber 41 can flow freely, achieving the effect of increasing the wheel hop stroke and improving the vehicle's passability.

[0042] Of course, the stiffness of the stabilizer bar in this embodiment can also be adjusted according to other vehicle control parameters, such as the steering wheel angle, roll angle, etc., including all vehicle control parameters used in the prior art, not limited to the above embodiments.

[0043] In addition, in the damping device 4, electrode materials are used. The electric field generated by a pair of electrodes is directional, that is, from one electrode to the other electrode, making the action range of the electric field more concentrated. In contrast, the magnetic field generated by a coil surrounds the coil, and its intensity decreases rapidly with the increase of distance, and the action range is relatively wider but not as concentrated. Electrodes are usually composed of simple metal sheets or conductors, which are easy to manufacture and integrate into the damping device 4. Compared with the coil that needs to be wound and has eddy current losses, etc., the assembly process is simplified and the current utilization rate is improved. In addition, compared with installing a damping structure in the transmission device 3, in this application, the damping device 4 and the transmission device 3 are separately designed. This can not only ensure the axial movement of the intermediate transmission member 32 of the transmission device 3, improve the transmission efficiency and reliability, but also make the control logic of the entire lateral stability system relatively simple, thereby reducing the failure risk of the entire lateral stability system.

[0044] Thus, by connecting the damping device 4 to the transmission device 3, the first chamber 31 and the second chamber 41 are connected and communicated. When the first rod 1 or the second rod 2 rotates along the axis, it drives the intermediate transmission member 32 to axially move in the first chamber 31, so as to squeeze the fluid in the first chamber 31 into the second chamber 41 and flow through multiple chambers in sequence. During this period, by changing the electric field strength of the electrode gap 44, the viscosity of the fluid is changed, which can provide different resistances for the axial movement of the piston, thereby effectively realizing the function of stiffness adjustment. Among them, the present invention only needs to control the input current of the first electrode and the second electrode, compared with the prior art, it completely avoids the failure risk of related damping components, and effectively improves the reliability and stability of the whole system. Moreover, the stabilizer bar can change the stiffness only by changing the input current of the first electrode and the second electrode, and the control logic and control method are simple. The stabilizer bar of the present invention has three working modes: decoupling, semi-decoupling, and locking. When in the semi-decoupling working mode, the stiffness is adjustable, and the adjustable range is wide and the regulation is dense, which greatly improves the handling stability and comfort, and can be applied to various applicable scenarios.

[0045] Further, in the embodiment of the present invention, a first flow path 5 and a second flow path 6 are provided between the first chamber 31 and the second chamber 41. The first chamber 31, the first flow path 5, the second chamber 41, and the second flow path 6 are connected in sequence to form a circulation loop. When one of the first flow path 5 and the second flow path 6 is the outflow flow path of the first chamber 31, the other of the first flow path 5 and the second flow path 6 is the return flow path of the first chamber 31.

[0046] As Figure 1 shown, in this embodiment, a first flow path 5 and a second flow path 6 are provided between the first chamber 31 and the second chamber 41, so that the first chamber 31, the first flow path 5, the second chamber 41, and the second flow path 6 are connected in sequence to form a circulation loop. For example, when the intermediate transmission member 32 axially moves to squeeze the fluid in the first chamber 31 to flow into the second chamber 41 through the first flow path 5, by adjusting the magnitude of the input current of the first electrode 42 and the second electrode 43, the electric field strength of the electrode gap 44 is changed, and the electrorheological effect occurs when the fluid flows through the electrode gap 44, obtaining a certain viscosity; thereafter, the fluid in the second chamber 41 will be squeezed back into the first chamber 31 through the second flow path 6, providing a certain resistance for the axial movement of the intermediate transmission member 32 and realizing the adjustment of stiffness. Or, the fluid in the first chamber 31 can also flow into the second chamber 41 through the second flow path 6, and then flow back into the first chamber 31 through the first fluid. It can be understood that according to the direction of the force received by the first rod 1 or the second rod 2, the fluid is selectively discharged from one of the first flow path 5 and the second flow path 6 and flows back from the other of the first flow path 5 and the second flow path 6.

[0047] With such a setting, a circulation loop is formed between the first chamber 31 and the second chamber 41. Since the first chamber 31 and the second chamber 41 are filled with fluid, the axial movement of the intermediate transmission member 32 promotes the flow of the fluid in the entire chamber, and the fluid in the entire chamber can be affected by the first electrode 42 and the second electrode 43 in the second chamber 41, so that the damping characteristics of the fluid in the entire chamber can be changed, and then the required resistance magnitude for the axial movement of the intermediate transmission member 32 can be provided, thereby realizing the function of stiffness adjustment.

[0048] Therefore, the damping fluid used in the present invention adopts the design of a circulation loop, which ensures the reliability of the entire lateral stability system. Compared with the stabilizer bar in the prior art, in addition to being affected by the electric field strength factor, there is also a risk of failure of other components, while the present invention completely avoids the risk of failure of other components, effectively improving the reliability and stability of the entire system. At the same time, the stiffness of the stabilizer bar can be changed only by changing the input current, and the control logic and control method are simple.

[0049] Further, both ends of the intermediate transmission member 32 in the axial direction respectively define a first sub-chamber 3101 and a second sub-chamber 3102 with the two ends of the first chamber 31, and the fluid fills the first sub-chamber 3101 and the second sub-chamber 3102. When the intermediate transmission member 32 moves axially, it can squeeze the fluid in the first sub-chamber 3101 to flow into the second chamber 41 through the first flow path 5 or squeeze the fluid in the second sub-chamber 3102 to flow into the second chamber 41 through the second flow path 6.

[0050] In the present embodiment, as Figure 1 and Figure 3 shown, one end of the intermediate transmission member 32 in the axial direction and the end of the first chamber 31 adjacent to the first rod body 1 define a first sub-chamber 3101, and the other end of the intermediate transmission member 32 in the axial direction and the end of the first chamber 31 adjacent to the second rod body 2 define a second sub-chamber 3102, and the fluid fills the first sub-chamber 3101 and the second sub-chamber 3102. When the intermediate transmission member 32 moves axially in the direction of the first rod body 1, it can squeeze the fluid in the first sub-chamber 3101 to flow into the second chamber 41 through the first flow path 5, and after the fluid obtains a certain viscosity, it flows back into the second sub-chamber 3102 through the second flow path 6; when the intermediate transmission member 32 moves axially in the direction of the second rod body 2, it can squeeze the fluid in the second sub-chamber 3102 to flow into the second chamber 41 through the second flow path 6, and after the fluid obtains a certain viscosity, it flows back into the first sub-chamber 3101 through the first flow path 5 to provide resistance for the intermediate transmission member 32.

[0051] Among them, from the perspective of the transmission device 3, the first sub-chamber 3101 and the second sub-chamber 3102 do not communicate with each other. However, from the perspective of the circulation loop formed between the transmission device 3 and the damping device 4, the fluid in the first sub-chamber 3101 can flow into the second sub-chamber 3102 through the damping device 4. Similarly, the fluid in the second sub-chamber 3102 can flow into the first sub-chamber 3101 through the damping device 4.

[0052] Thus, in the present invention, the first sub-chamber 3101 and the second sub-chamber 3102 are defined in the first chamber 31. By the action of the fluid in the first sub-chamber 3101 and the second sub-chamber on both ends of the intermediate transmission member 32, it is possible to provide more efficient resistance for the axial movement of the intermediate transmission member 32, and completely avoid the failure risk of other components, with high controllability and fine regulation, greatly improving the handling stability and comfort, and effectively improving the reliable stability of the entire system.

[0053] Further, a first through-flow port 33 and a second through-flow port 34 are respectively formed at both axial ends of the first chamber 31, and a third through-flow port 45 and a fourth through-flow port 46 are respectively formed at both ends of the second chamber 41 along the fluid flow direction. The first through-flow port 33 and the third through-flow port 45 respectively communicate with both ends of the first flow path 5, and the second through-flow port 34 and the fourth through-flow port 46 respectively communicate with both ends of the second flow path 6.

[0054] In the present embodiment, as Figure 3 and Figure 4 , the fluid in the first chamber 31 can flow from the first through-flow port 33 through the first flow path 5 from the third through-flow port 45 into the second chamber 41, and flow back into the first chamber 31 from the fourth through-flow port 46 through the second flow path 6 from the second through-flow port 34. Similarly, the fluid in the first chamber 31 can also flow from the second through-flow port 34 through the second flow path 6 from the fourth through-flow port 46 into the second chamber 41, and flow back into the first chamber 31 from the third through-flow port 45 through the first flow path 5 from the first through-flow port 33.

[0055] Further, the damping device 4 is disposed on one side of the transmission device 3. The stabilizer bar further includes: a pipeline assembly 7, and the pipeline assembly 7 includes a first pipeline 71 and a second pipeline 72. One ends of the first pipeline 71 and the second pipeline 72 are respectively connected to both axial ends of the first chamber 31, and the other ends of the first pipeline 71 and the second pipeline 72 are respectively connected to both ends of the second chamber 41 along the fluid flow direction. The first flow path 5 is formed in the first pipeline 71, and the second flow path 6 is formed in the second pipeline 72.

[0056] In an embodiment of one aspect of the present embodiment, the damping device 4 and the transmission device 3 adopt a split structure, as Figure 2As shown, the damping device 4 can be arranged on one axial side of the transmission device 3. One ends of the first pipeline 71 and the second pipeline 72 are respectively connected to the first through-flow port 33 and the second through-flow port 34 at the two axial ends of the first chamber 31, and the other ends of the first pipeline 71 and the second pipeline 72 are respectively connected to the third through-flow port 45 and the fourth through-flow port 46 at the two ends of the second chamber 41 along the fluid flow direction.

[0057] Specifically, the first through-flow port 33 is connected to the third through-flow port 45 through the first pipeline 71. At the same time, the first through-flow port 33 is connected to one end of the first pipeline 71 by means of threaded connection or the like, and the third through-flow port 45 is connected to the other end of the first pipeline 71 by means of threaded connection or the like. Similarly, the second through-flow port 34 is connected to the fourth through-flow port 46 through the second pipeline 72. At the same time, the second through-flow port 34 is connected to one end of the second pipeline 72 by means of threaded connection or the like, and the fourth through-flow port 46 is connected to the other end of the second pipeline 72 by means of threaded connection or the like, thereby connecting the transmission device 3 and the damping device 4.

[0058] In another embodiment of this embodiment, the damping device 4 and the transmission device 3 can also adopt an integrated structure, integrating the damping device 4 and the transmission device 3 in a large housing, which is convenient for installation and effectively protects the components inside the damping device 4 and the transmission device 3. And a first flow path 5 and a second flow path 6 can be directly formed in the housing, thus eliminating the setting and installation of the pipeline assembly 7 and at the same time avoiding the risk of fluid leakage.

[0059] Furthermore, the transmission device 3 further includes: a first transmission member 35 and a second transmission member 36. The first transmission member 35 is configured with a first chamber 31. The second transmission member 36 is partially arranged in the first chamber 31. The first transmission member 35 is rigidly connected to the first rod body 1. The second transmission member 36 is rigidly connected to the transition sleeve 38. The transition sleeve 38 is rigidly connected to the second rod body 2. The intermediate transmission member 32 is respectively in transmission connection with the first transmission member 35 and the second transmission member 36 and can axially move cyclically relative to the first transmission member 35 and the second transmission member 36.

[0060] In this embodiment, the first transmission member 35 has a first chamber 31. The intermediate transmission member 32 and a part of the second transmission member 36 are arranged in the first chamber 31. And the intermediate transmission member 32 is respectively in transmission connection with the first transmission member 35 and the second transmission member 36 located in the first chamber 31 and can axially move cyclically relative to the first transmission member 35 and the second transmission member 36.

[0061] Specifically, when one end of the first rod 1 rotates in one direction and there is a displacement difference with one end of the second rod 2, it will drive the first transmission member 35 to rotate together. At this time, the force received by the first transmission member 35 drives the intermediate transmission member 32 to axially move cyclically relative to the first transmission member 35 and the second transmission member 36. When one end of the second rod 2 rotates in one direction and there is a displacement difference with one end of the first rod 1, it will drive the second transmission member 36 to rotate together. At this time, the force received by the second transmission member 36 drives the intermediate transmission member 32 to axially move cyclically relative to the first transmission member 35 and the second transmission member 36.

[0062] Thus, by using the installation method and transmission method among the first transmission member 35, the intermediate transmission member 32 and the second transmission member 36, the rotational motion of the first rod 1 or the second rod 2 can be converted into the axial motion of the intermediate transmission member 32. The structure is simple and reliable, resulting in relatively high transmission efficiency and reliability, and is suitable for mass production and promotion. In addition, by setting the intermediate transmission member 32 to axially move cyclically, the volume of the transmission device 3 can be reduced, which is conducive to the layout of the transmission device 3 in the vehicle and is suitable for the limited space layout of the vehicle.

[0063] Furthermore, the intermediate transmission member 32 is sleeved on the second transmission member 36 located in the first chamber 31 and can axially move with limited displacement along the second transmission member 36. And the intermediate transmission member 32 and the first transmission member 35 are connected by a circulating transmission assembly 37.

[0064] In the embodiment of this implementation manner, as Figure 3 shown, the intermediate transmission member 32 can be a piston, the second transmission member 36 can be a lead screw shaft, and the first transmission member 35 is a shell structure with a first chamber 31. Specifically, the lead screw shaft penetrates through the first transmission member 35 and extends into the first chamber 31. The lead screw shaft is connected to one end of the first transmission member 35 adjacent to the second rod 2 through a bearing, and the lead screw shaft is connected to one end of the first transmission member 35 adjacent to the first rod 1 inside through a bearing. And the inner side of the piston and the lead screw shaft can be connected by spline transmission so that the lead screw shaft can drive the piston to axially move along the lead screw shaft within a certain axial length. And the lead screw shaft and the transition sleeve 38 can be connected by involute splines and welded together, and the second rod 2 is welded to the transition sleeve 38. And the outer side of the piston and the inner wall of the first transmission member 35 can be connected by a circulating transmission assembly 37 so that the first transmission member 35 can drive the piston to axially move along the lead screw shaft within a certain axial length. Among them, by setting the circulating transmission assembly 37, due to the characteristics of cyclic transmission of the circulating transmission assembly 37, it can ensure that the piston moves axially cyclically.

[0065] Further, the cyclic transmission assembly 37 includes balls 3701, a ball slideway 3702, and a reverser 3703. A ball slideway 3702 is formed between the inner wall of the first transmission member 35 and the outer wall of the intermediate transmission member 32. A number of balls 3701 are arranged in the ball slideway 3702, and reversers 3703 are respectively arranged at both ends of the ball slideway 3702. The intermediate transmission member 32 and the first transmission member 35 are connected by the balls 3701.

[0066] In this embodiment, a ball slideway 3702 is provided between the inner wall of the first transmission member 35 and the outer side of the piston. Reversers 3703 are respectively arranged at both ends of the ball slideway 3702, and the reverser 3703 is connected to the inner wall of the first transmission member 35 by bolts. The outer side of the piston is connected to the inner wall of the first transmission member 35 by the balls 3701, and the inner side of the piston is connected to the lead screw shaft by a spline. At the same time, the piston divides the first chamber 31 formed by the first transmission member 35 into a first sub-chamber 3101 and a second sub-chamber 3102, and the first sub-chamber 3101 and the second sub-chamber 3102 are filled with fluid. Wherein, the arrangement of the reverser 3703 can ensure that the intermediate transmission member 32 can axially move cyclically.

[0067] Taking one case as an example, when one end of the first rod body 1 rotates in one direction and there is a displacement difference from one end of the second rod body 2, the first rod body 1 is integrally welded to the first transmission member 35, which will drive the first transmission member 35 to rotate together, thereby pressing the balls 3701 to make the piston move axially along the lead screw shaft, so that the fluid in the first sub-chamber 3101 flows out through the first flow port 33 or the fluid in the second sub-chamber 3102 flows out through the second flow port 34, and then enters the damping device 4; the control device 8 controls the magnitudes of the currents input to the first electrode 42 and the second electrode 43. When the fluid flows through the electrode gap 44, an electrorheological effect occurs, the viscosity of the fluid changes, and then it flows back into the first chamber 31 to provide resistance to the axial movement of the piston, realizing the function of stiffness adjustment.

[0068] Taking another case as an example, when one end of the second rod body 2 rotates in one direction and there is a displacement difference from one end of the first rod body 1, the second rod body 2 is integrally welded to the transition sleeve 38, and at the same time the transition sleeve 38 is integrally welded to the lead screw shaft and rotates together, pressing the balls 3701 to make the piston move axially along the lead screw shaft, so that the fluid in the first sub-chamber 3101 flows out through the first flow port 33 or the fluid in the second sub-chamber 3102 flows out through the second flow port 34, and then enters the damping device 4; the control device 8 controls the magnitudes of the currents input to the first electrode 42 and the second electrode 43. When the fluid flows through the electrode gap 44, an electrorheological effect occurs, the viscosity of the fluid changes, providing resistance to the axial movement of the piston, realizing the function of stiffness adjustment.

[0069] Thus, by adopting the cyclic transmission assembly 37, the intermediate transmission member 32 can be axially moved cyclically, and the structure using the ball slideway 3702 and the balls 3701 ensures the transmission reliability between the intermediate transmission member 32 and the first transmission member 35.

[0070] Further, the first transmission member 35 includes: a transmission housing 3501, a first transmission end cover 3502 and a second transmission end cover 3503 sealed at both ends of the transmission housing 3501. The transmission housing 3501, the first transmission end cover 3502 and the second transmission end cover 3503 jointly define a first chamber 31. The first transmission end cover 3502 is rigidly connected to the first rod body 1, and a part of the second transmission member 36 is disposed in the first chamber 31 through the second transmission end cover 3503.

[0071] In this embodiment, as Figure 3 shown, the first transmission end cover 3502 is provided with a first through-flow port 33, and the second transmission end cover 3503 is provided with a second through-flow port 34. The first transmission end cover 3502 is connected to the transmission housing 3501 by bolts or welding, and the transmission housing 3501 is connected to the second transmission end cover 3503 by bolts or welding. Moreover, one end of the first rod body 1 is connected to the first transmission end cover 3502 by an involute spline and welded, thereby connecting the first rod body 1 to the transmission device 3. One end of the second rod body 2 is welded to the transition sleeve 38 through an oval hole, and the lead screw shaft is connected to the transition sleeve 38 by an involute spline and welded, thereby connecting the second rod body 2 to the transmission device 3, ensuring the connection reliability between the transmission device 3 and the stabilizer bar.

[0072] Further, the first electrode 42 and the second electrode 43 are a pair of electrodes, and at least two pairs of electrodes are arranged at intervals in the second chamber 41 along the fluid flow direction, and the second chamber 41 is divided into at least three chambers.

[0073] In this embodiment, as Figure 4 shown, two pairs of electrodes are arranged in the second chamber 41, and the two pairs of electrodes are respectively arranged at both ends of the second chamber 41 along the fluid flow direction. The above two pairs of electrodes jointly divide the internal space formed by the second chamber 41 into three chambers, namely a third sub-chamber 4101, a fourth sub-chamber 4102 and a fifth sub-chamber 4103 that are sequentially and mutually communicated. Fluids exist in the third sub-chamber 4101, the fourth sub-chamber 4102, the fifth sub-chamber 4103 and the two electrode gaps 44 formed by the two pairs of electrodes. With such an arrangement, by providing at least two pairs of electrodes, the function of the stabilizer bar can still be maintained by the other pair of electrodes after one pair of electrodes is damaged.

[0074] Further, at least one end of the second chamber 41 along the fluid flow direction is formed with a protrusion 47, the extending direction of the protrusion 47 is parallel to the fluid flow direction, the first electrode 42 is disposed around the side wall of the second chamber 41, and the second electrode 43 is disposed around the protrusion 47.

[0075] In this embodiment, as Figure 4 shown, the two first electrodes 42 are respectively embedded in the side walls of the second chamber 41 near the ends, and the second electrodes 43 are respectively embedded in the protrusions 47 at both ends of the second chamber 41. At this time, two electrode gaps 44 are respectively formed at both ends of the second chamber 41.

[0076] Further, the damping device 4 includes a damping housing 48 and damping end caps 49 and 50 sealed at both ends of the damping housing 48. The damping housing 48, the damping end cap 49 and the damping end cap 50 together define the second chamber 41. At least one of the damping end cap 49 and the damping end cap 50 is formed with a protrusion 47, and the first electrode 42 is disposed around the inner wall of the housing.

[0077] In this embodiment, as Figure 4 shown, the damping end cap 49 is provided with a third through-flow port 45, and the damping end cap 50 is provided with a fourth through-flow port 46; the damping end cap 49 is connected to the damping housing 48 by bolts or welding, and the damping housing 48 is connected to the damping end cap 50 by bolts or welding.

[0078] Further, the first electrode 42 and the second electrode 43 are a pair of electrodes. n pairs of electrodes are sequentially arranged in the second chamber 41 along the fluid flow direction. Each pair of electrodes forms an electrode gap 44, and the n electrode gaps 44 divide the second chamber 41 into n + 1 chambers.

[0079] According to the lateral stability system of the second aspect embodiment of the present invention, the lateral stability system includes a control device 8 and a stabilizer bar. The control device 8 is electrically connected to the first electrode 42 and the second electrode 43, and the control device 8 is used to be electrically connected to a plurality of external sensors to control the electric field strength of the electrode gap 44. Thus arranged, the plurality of external sensors may include a vehicle speed sensor, an angle sensor, etc. The control device 8 controls the magnitude of the current input to the first electrode 42 and the second electrode 43 according to the signals of the plurality of external sensors, so as to control the electric field magnitude of the electrode gap 44 to change the damping characteristics of the fluid, and further realize stiffness adjustment.

[0080] According to the vehicle of the third aspect embodiment of the present invention, the vehicle includes a stabilizer bar.

[0081] A stabilizer bar and its control method of the present invention are detailed as follows: I. Working principle The stabilizer bar plays a role in stabilizing the vehicle body when there is a displacement difference between one end of the first rod body 1 and one end of the second rod body 2 (such as during turning or driving over an uneven road surface). At the same time, it has three working modes: decoupling, semi-decoupling, and locking. And when it is in the semi-decoupling working mode, the stiffness is adjustable. The principle is as follows: Two first electrodes 42 are connected to a positive current through wires, and two second electrodes 43 are connected to a negative current through wires. An electric field will be formed between the two electrode gaps 44, and the magnitude of the electric field strength is only determined by the current input by the control device 8. When the fluid flows through the two electrode gaps 44, the electro-rheological effect occurs under the action of the electric field, changing the damping characteristics of the fluid, resulting in a change in the stiffness of the stabilizer bar. The stiffness that changes in real time according to different working conditions enables the vehicle to balance handling stability and comfort.

[0082] II. Control Method The control method of the stabilizer bar is only realized by controlling the magnitude of the input current, which has the advantages of stability, reliability, and simple control logic. It is beneficial to improve the comfort during low-speed driving, the stability during high-speed driving, and the balance of comfort and stability during medium-speed driving, and enhance the off-road passability.

[0083] The control parameters of the stabilizer bar include vehicle speed, steering wheel angle, roll angle, etc. Taking the vehicle speed as an example (the relationship between the stiffness of the stabilizer bar and the vehicle speed is as Figure 6 shown) and combining a situation to elaborate the control method: When idling (vehicle speed < 5 km / h), this working condition is common in scenarios such as traffic jams and parking. The demand for using the stabilizer bar is relatively low, and no input current is applied to both pairs of electrodes. The fluid in the stabilizer bar can flow freely, which conforms to the concept of green energy conservation.

[0084] When at low speed (5 km / h ≤ vehicle speed < 75 km / h), emphasizing the balance of vehicle handling stability and comfort, a real-time adjustable current is input to at least one pair of the first electrodes 42 and the second electrodes 43, so that at least one electrode gap 44 will form an electric field; when the stabilizer bar comes into play, the fluid in the first chamber 31 flows into the damping device 4 and undergoes the electro-rheological effect when flowing through the electrode gap 44, generating a real-time changing damping force, thereby changing the stiffness of the stabilizer bar in real time; then, the fluid in the damping device 4 will be squeezed back into the first chamber 31, and at this time, the stabilizer bar functions similar to an active stabilizer bar.

[0085] When at high speed (vehicle speed ≥ 75 km / h), emphasizing vehicle handling stability, when the stabilizer bar comes into play, keep the input current of the first electrode 42 and the second electrode 43 at the maximum, and the stiffness of the stabilizer bar remains the maximum. At this time, the stabilizer bar functions similar to a passive stabilizer bar.

[0086] When driving over a severely pitted or bumpy road surface <47> under off-road conditions, it is possible for a single wheel to become suspended, significantly reducing the vehicle's passability. At this time, the current input to the control device <8> can be manually turned off, allowing the fluid in the stabilizer bar to flow freely, achieving the effect of increasing the wheel jump stroke, improving the vehicle's passability. At this time, the stabilizer bar functions similarly to a disconnectable stabilizer bar.

[0087] In addition, when either one of a pair of first electrodes <42> and second electrodes <43> is damaged, the other pair of first electrodes <42> and second electrodes <43> can still work normally, and the stabilizer bar can still play a role in balancing the vehicle body.

[0088] Therefore, the stabilizer bar of the present invention has the following characteristics: First, adjustable stiffness: The stabilizer bar has three working modes: decoupling, semi-decoupling, and locking. When in the semi-decoupling working mode, the stiffness is adjustable, and the adjustable range is wide and the regulation is fine, greatly improving the handling stability and comfort. Second, fast response speed: The response speed of the overall system depends on the change speed of the fluid properties, and this speed can reach the millisecond level. Third, rich applicable scenarios: The stabilizer bar can be applied to various applicable scenarios, such as: it can be applied to common urban road conditions and off-road road conditions. Fourth, high reliability: The stabilizer bar is mainly composed of a mechanical structure, and the stabilizer bar can still maintain its function even if the electrical system part is damaged. Fifth, strong ductility: The stabilizer bar can easily adjust its own structure according to the different chassis structures of various vehicle models, such as: it can be selected as a split type or an integrated type according to the situation. Sixth, simple control: The stabilizer bar can change the stiffness only by changing the input voltage, and the control logic and control method are simple.

[0089] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0090] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0091] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A stabilizer bar, characterized in that: include: A first rod body; A second rod body; A transmission device, wherein one end of the first rod body is coaxially connected to one end of the transmission device, and one end of the second rod body is coaxially connected to the other end of the transmission device, and the transmission device has a first chamber, and an intermediate transmission member is arranged in the first chamber, and when the first rod body or the second rod body rotates, the intermediate transmission member is driven to move axially; A damping device, wherein the damping device has a second chamber, the first chamber and the second chamber are communicated with each other and a fluid flows between the first chamber and the second chamber, a first electrode and a second electrode are arranged in the second chamber, an electrode gap is formed between the first electrode and the second electrode and the electrode gap divides the second chamber into two chambers, which is used to perform electrorheological operation on the fluid flowing through under different working conditions; the intermediate transmission member moves axially to squeeze the fluid in the first chamber into the second chamber and flows through the chambers in sequence and then flows into the first chamber.

2. The stabilizer bar according to claim 1, characterized in that A first flow path and a second flow path are provided between the first chamber and the second chamber, and the first chamber, the first flow path, the second chamber and the second flow path are sequentially connected to form a circulation loop, and when one of the first flow path and the second flow path is the outflow path of the first chamber, the other of the first flow path and the second flow path is the return path of the first chamber.

3. The stabilizer bar according to claim 2, characterized in that: The two ends of the intermediate transmission member along the axial direction respectively define a first sub-chamber and a second sub-chamber with the two ends of the first chamber, and the fluid fills the first sub-chamber and the second sub-chamber; when the intermediate transmission member moves axially, the fluid in the first sub-chamber is squeezed to flow into the second chamber through the first flow path, or the fluid in the second sub-chamber is squeezed to flow into the second chamber through the second flow path.

4. The stabilizer bar according to claim 2, characterized in that: The first chamber has a first flow opening and a second flow opening formed at both ends along the axial direction, and the second chamber has a third flow opening and a fourth flow opening formed at both ends along the fluid flow direction, the first flow opening and the third flow opening are respectively connected to the two ends of the first flow path, and the second flow opening and the fourth flow opening are respectively connected to the two ends of the second flow path.

5. The stabilizer bar according to claim 2, characterized in that: The damping device is arranged on one side of the transmission device; It also includes: a pipeline assembly, which includes a first pipeline and a second pipeline, one end of the first pipeline and the second pipeline are respectively connected to the axial ends of the first chamber, and the other ends of the first pipeline and the second pipeline are respectively connected to the two ends of the second chamber along the fluid flow direction, the first flow path is formed in the first pipeline, and the second flow path is formed in the second pipeline.

6. The stabilizer bar according to claim 1, characterized in that: The transmission device also includes: a first transmission member and a second transmission member, the first transmission member is configured with the first chamber, the second transmission member is partially disposed in the first chamber, the first transmission member is rigidly connected to the first rod body, the second transmission member is rigidly connected to the second rod body, and the intermediate transmission member is respectively transmission-connected to the first transmission member and the second transmission member and can be cyclically moved axially relative to the first transmission member and the second transmission member.

7. The stabilizer bar according to claim 6, characterized in that The intermediate transmission member is sleeved on the second transmission member located in the first chamber and can move axially along the second transmission member in a limited manner, and the intermediate transmission member and the first transmission member are transmission-connected via a circulating transmission assembly.

8. The stabilizer bar according to claim 7, characterized in that The circulating transmission component includes balls, ball slides and a deflector. The ball slide is constructed between the inner wall of the first transmission component and the outer wall of the intermediate transmission component. A plurality of balls are arranged in the ball slide and the deflectors are respectively arranged at both ends of the ball slide. The intermediate transmission component is connected to the first transmission component through the balls.

9. The stabilizer bar according to claim 6, characterized in that: The first transmission component includes: a transmission housing and a transmission end cover 1 and a transmission end cover 2 sealed at both ends of the transmission housing, the transmission housing, the transmission end cover 1 and the transmission end cover 2 jointly define the first chamber, the transmission end cover 1 is rigidly connected to the first rod body, and the second transmission component is partially passed through the transmission end cover 2 and is arranged in the first chamber.

10. The stabilizer bar according to claim 1, characterized in that The first electrode and the second electrode form a pair of electrodes, and at least two pairs of the electrodes are spaced apart and arranged in the second chamber along the direction of fluid flow to divide the second chamber into at least three chambers.

11. The stabilizer bar according to claim 10, characterized in that The first electrode and the second electrode form a pair of electrodes, and n pairs of electrodes are sequentially arranged in the second chamber along the direction of fluid flow, each pair of electrodes forms an electrode gap, and the n electrode gaps divide the second chamber into n+1 chambers.

12. The stabilizer bar according to claim 1, characterized in that A protrusion is formed at at least one end of the second chamber along the fluid flow direction, and the protrusion extends in a direction parallel to the fluid flow direction. The first electrode ring is arranged on the side wall of the second chamber, and the second electrode ring is arranged on the protrusion.

13. The stabilizer bar according to claim 12, characterized in that The damping device includes a damping shell and a damping end cover 1 and a damping end cover 2 sealed at both ends of the damping shell. The damping shell, the damping end cover 1 and the damping end cover 2 jointly define the second chamber. At least one of the damping end cover 1 and the damping end cover 2 is formed with the protrusion, and the first electrode ring is arranged on the inner wall of the shell.

14. A lateral stabilization system, characterized in that: The lateral stabilization system comprises a control device and a stabilization bar as claimed in any one of claims 1 to 13, wherein the control device is electrically connected to the first electrode and the second electrode, and the control device is used to electrically connect to a plurality of external sensors to control the electric field strength of the electrode gap.

15. A vehicle, characterized in that: The vehicle comprises a stabilizer bar as claimed in any one of claims 1-13.

Images