Semi-active inerter vibration reduction system of vehicle suspension device

Abstract

The invention discloses a semi-active inerter vibration reduction system of a vehicle suspension device, which relates to the technical field of vibration reduction and comprises a rectifying valve block, an oil cylinder, an air cylinder and a measurement and control system comprising a displacement sensor and a controller, the rectifying valve block is internally provided with a first mounting port for mounting an oil cylinder, a second mounting port for mounting an air cylinder, a first liquid flow channel internally provided with a damper and a high-speed switch valve, a second liquid flow channel internally provided with an inerter and a high-speed switch valve, a first flow channel, a second flow channel, a first connecting channel and a second connecting channel; the first liquid flow channel and the second liquid flow channel are arranged in parallel; the damper and the inerter have the same damping force and different inertia forces; at least one one-way valve is arranged between the first flowing channel and the first connecting channel, between the second flowing channel and the first connecting channel, between the second connecting channel and the first flowing channel and between the second connecting channel and the second flowing channel. The size of the inerter can be automatically adjusted, and the vibration reduction effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vibration reduction, in particular to a semi-active inertial haptic vibration reduction system of a vehicle suspension device. BACKGROUND

[0002] The suspension system plays a very key role in vehicle performance and control, which establishes the connection between the road and the vehicle body, has the effect of bearing the weight of the vehicle body, absorbing and attenuating the vibration and impact of the vehicle frame or body caused by the uneven road.

[0003] The existing vibration reduction system is composed of springs, hydraulic damping shock absorbers and inertial containers in series and parallel, and cannot independently identify the vehicle vibration according to the specific road conditions, and then provide targeted vibration reduction scheme, so the best vibration reduction effect cannot be achieved. SUMMARY

[0004] The purpose of the present application is to provide a semi-active inertial haptic vibration reduction system of a vehicle suspension device to solve the problems existing in the prior art, which can realize the independent adjustment of the size of the inertial container and improve the vibration reduction effect.

[0005] To achieve the above purpose, the present application provides the following scheme:

[0006] The application provides a semi-active inertial damper system of a vehicle suspension device, which comprises a rectifier valve block, an oil cylinder, an air cylinder and a measurement and control system; the rectifier valve block is internally provided with a first mounting port, a second mounting port, a first liquid flow channel, a second liquid flow channel, a first flow channel, a second flow channel, a first connecting channel and a second connecting channel; the first liquid flow channel and the second liquid flow channel are arranged in parallel; the first liquid flow channel is internally provided with a damper and at least one first high-speed on-off valve, the damper and each first high-speed on-off valve are arranged in series; the second liquid flow channel is internally provided with an inertial damper and at least one second high-speed on-off valve, the inertial damper and each second high-speed on-off valve are arranged in series; one end of the first liquid flow channel and the second liquid flow channel is communicated with the first connecting channel, and the other end of the first liquid flow channel and the second liquid flow channel is communicated with the second connecting channel; the damping force of the damper is the same as the damping force of the inertial damper, and the inertial force of the damper is different from the inertial force of the inertial damper; one end of the first flow channel is communicated with the first mounting port, and the oil liquid at the other end of the first flow channel flows into the first connecting channel in one direction through at least one first check valve; the oil liquid of the second flow channel flows into the first connecting channel in one direction through at least one second check valve; the oil liquid of the second connecting channel flows into the first flow channel in one direction through at least one third check valve; the oil liquid of the second connecting channel flows into the second flow channel in one direction through at least one fourth check valve; the second flow channel is communicated with the second mounting port; the oil cylinder is fixedly connected to the first mounting port, and the oil port of the oil cylinder is communicated with the first mounting port; the air cylinder is fixedly connected to the second mounting port, and the oil port of the air cylinder is communicated with the second mounting port; the measurement and control system comprises a displacement sensor and a controller, the displacement sensor is used for measuring the extension and retraction displacement of the oil cylinder; the controller is in communication connection with the displacement sensor, each first high-speed on-off valve and each second high-speed on-off valve.

[0007] Preferably, the first flow channel is further provided with an oil filling port, the oil filling port is used for being connected with an oil filling device, and the oil filling port can be opened and closed.

[0008] Preferably, when the number of the first high-speed on-off valves is greater than or equal to 2, each first high-speed on-off valve is arranged in parallel, and the damper and each first high-speed on-off valve are in series connection; when the number of the second high-speed on-off valves is greater than or equal to 2, each second high-speed on-off valve is arranged in parallel, and the inertial damper and each second high-speed on-off valve are in series connection.

[0009] Preferably, when the number of the first check valve, the second check valve, the third check valve and the fourth check valve is greater than or equal to 2, each corresponding valve is arranged in parallel.

[0010] Preferably, the first flow channel comprises a cylinder communication oil channel and a second transverse oil channel; the cylinder communication oil channel and the second transverse oil channel are both blind holes, the opening of the cylinder communication oil channel is in communication with the first mounting port, the bottom of the hole of the cylinder communication oil channel is in communication with the bottom of the hole of the second transverse oil channel, the opening of the second transverse oil channel is sealed and blocked by a second transverse sealing member; the second transverse oil channel is in communication with the first connection channel through each first one-way valve; and the second transverse oil channel is in communication with the second connection channel through each third one-way valve.

[0011] Preferably, the first connection channel comprises a first transverse oil channel and a first longitudinal oil channel; the first transverse oil channel and the first longitudinal oil channel are both blind holes, the opening of the first transverse oil channel is sealed and blocked by a first transverse sealing member; the first longitudinal oil channel is in cross communication with the first transverse oil channel, the opening of the first longitudinal oil channel is sealed and blocked by a first longitudinal sealing member; the first transverse oil channel is in communication with the first flow channel through each first one-way valve; the first longitudinal oil channel is in communication with the second flow channel through each second one-way valve; and the first transverse oil channel is in communication with the inerter and the damper.

[0012] Preferably, the first flow channel comprises a second longitudinal oil channel, at least one first high-speed switching oil channel and at least one first connecting oil channel; the second longitudinal oil channel, each first high-speed switching oil channel and each first connecting oil channel are all blind holes; the damper is arranged in the second longitudinal oil channel, the opening of the second longitudinal oil channel is sealed and blocked by a second longitudinal sealing member, and the second longitudinal oil channel is in cross communication with the first transverse oil channel; each first high-speed switching oil channel is arranged in parallel, the first high-speed switching valve is arranged at the opening of the first high-speed switching oil channel, and the bottom of the hole of the first high-speed switching oil channel is in communication with the second connection channel; each first connecting oil channel is arranged in parallel, the first connecting oil channel corresponds to the first high-speed switching oil channel one by one, the opening of each first connecting oil channel is respectively sealed and blocked by a first connecting sealing member, and the bottom of the hole of the first connecting oil channel is in cross communication with the first high-speed switching oil channel and the second longitudinal oil channel respectively.

[0013] Preferably, the second flow channel comprises an inerter oil channel, a second connection oil channel and at least one second high-speed switch oil channel; the inerter oil channel, the second connection oil channel and each second high-speed switch oil channel are blind holes; the bottom of the inerter oil channel is communicated with the first transverse oil channel, and the opening of the inerter oil channel is communicated with one end of the inerter; the other end of the inerter is communicated with the opening of the second connection oil channel; each second high-speed switch oil channel is arranged in parallel, the second high-speed switch valve is arranged at the opening of the second high-speed switch oil channel, the bottom of the second high-speed switch oil channel is communicated with the second connection channel, and the second high-speed switch oil channel is cross communicated with the second connection oil channel.

[0014] Preferably, the second flow channel comprises a fourth longitudinal oil channel and a cylinder oil inlet channel; the fourth longitudinal oil channel and the cylinder oil inlet channel are blind holes; the opening of the fourth longitudinal oil channel is communicated with the second mounting port, and the fourth longitudinal oil channel is communicated with the first longitudinal oil channel through each second one-way valve; the opening of the cylinder oil inlet channel is communicated with the second mounting port, and the cylinder oil inlet channel is communicated with the second connection channel through each fourth one-way valve.

[0015] Preferably, the inerter is a spiral pipe, and the damper is a short straight channel with a damping hole.

[0016] The present application has the following technical effects relative to the prior art:

[0017] The semi-active inerter damping system of the vehicle suspension device provided by the present application provides elastic force through gas in the cylinder, and provides damping force through the inerter or the damper and the corresponding high-speed switch valve in the process of oil flowing through the inerter or the damper and the corresponding high-speed switch valve; the inerter provides larger inertial force when oil flows therethrough, and the damper provides smaller inertial force when oil flows therethrough; the controller controls the opening and closing of the corresponding high-speed switch valve according to the extension and retraction displacement of the oil cylinder measured by the displacement sensor, so as to switch the oil between the two different flow channels, thereby realizing two-stage regulation of the large and small inertial forces and realizing self-regulation of the damping characteristics; when the controller controls all the high-speed switch valves to be closed, the rigid locking function of the oil cylinder can also be realized; the oil forms one-way stable flow through the arrangement of the one-way valves; the relative acceleration signal can be obtained by taking the second-order derivative of the extension and retraction displacement of the oil cylinder with respect to time, when the product of the relative acceleration and the extension and retraction displacement is less than zero, the controller controls each first high-speed switch valve to be closed, and the oil flows through the second flow channel, at this time, larger inertial force is provided; when the product of the relative acceleration and the extension and retraction displacement is greater than or equal to zero, the controller controls each second high-speed switch valve to be closed, and the oil flows through the first flow channel, thereby providing smaller inertial force. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0019] Figure 1 A hydraulic principle schematic diagram of a semi-active inertial hysteresis damping system of a vehicle suspension device provided by the present application is shown in the figure.

[0020] Figure 2 A schematic diagram of the overall structure of a semi-active inertial hysteresis damping system of a vehicle suspension device provided by the present application is shown in the figure.

[0021] Figure 3 A schematic diagram of the overall structure of a rectifier valve block in a semi-active inertial hysteresis damping system of a vehicle suspension device provided by the present application is shown in the figure.

[0022] Figure 4 A schematic diagram of the structure of a rectifier valve block in a semi-active inertial hysteresis damping system of a vehicle suspension device provided by the present application is shown in the figure.

[0023] Figure 5 A schematic diagram of the structure of each oil passage in a rectifier valve block in a semi-active inertial hysteresis damping system of a vehicle suspension device provided by the present application is shown in the figure.

[0024] Figure 6 A schematic diagram of the structure of each oil passage in a rectifier valve block in a semi-active inertial hysteresis damping system of a vehicle suspension device provided by the present application is shown in the figure.

[0025] Figure 7 A schematic diagram of the structure of each oil passage in a rectifier valve block in a semi-active inertial hysteresis damping system of a vehicle suspension device provided by the present application is shown in the figure.

[0026] Figure 8 A schematic diagram of the structure of each oil passage in a rectifier valve block in a semi-active inertial hysteresis damping system of a vehicle suspension device provided by the present application is shown in the figure.

[0027] Figure 9 A schematic diagram of the structure of each oil passage in a rectifier valve block in a semi-active inertial hysteresis damping system of a vehicle suspension device provided by the present application is shown in the figure.

[0028] Figure 10 A schematic diagram of the structure of each oil passage in a rectifier valve block in a semi-active inertial hysteresis damping system of a vehicle suspension device provided by the present application is shown in the figure.

[0029] In the figure:

[0030] 10-cylinder; 11-first lifting lug;

[0031] 20-rectifier valve block; 21-second lifting lug; 22-first transverse oil passage; 221-inerter oil passage; 222-spiral pipe; 223-second connection oil passage; 224-second high-speed on-off valve; 225-first check valve; 226-first transverse seal; 23-second transverse oil passage; 231-cylinder communication oil passage; 232-third check valve; 233-branch oil passage; 234-second transverse seal; 235-branch seal; 24-first longitudinal oil passage; 241-second check valve; 242-first longitudinal seal; 25-second longitudinal oil passage; 251-first high-speed on-off valve; 252-first connection oil passage; 253-second longitudinal seal; 254-first connection seal; 255-damper; 26-third longitudinal oil passage; 261-third longitudinal seal; 27-fourth longitudinal oil passage; 28-cylinder oil inlet passage; 281-fourth check valve; 282-check valve seal; 29-filling port; 291-first mounting port; 292-second mounting port;

[0032] 30-cylinder;

[0033] 40-displacement sensor. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0035] The present application aims to provide a semi-active inerter damping system of a vehicle suspension device to solve the problems in the prior art and to realize autonomous adjustment of the size of the inerter and improve the damping effect.

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0037] Embodiment one

[0038] The present embodiment provides a semi-active inerter damping system of a vehicle suspension device, which comprises a cylinder, a displacement sensor, a rectifier valve block, a first lifting lug, a second lifting lug, a first transverse oil passage, an inerter oil passage, a spiral pipe, a second connection oil passage, a second high-speed on-off valve, a first check valve, a first transverse seal, a second transverse oil passage, a cylinder communication oil passage, a third check valve, a branch oil passage, a second transverse seal, a branch seal, a first longitudinal oil passage, a second check valve, a first longitudinal seal, a second longitudinal oil passage, a first high-speed on-off valve, a first connection oil passage, a second longitudinal seal, a first connection seal, a damper, a third longitudinal oil passage, a third longitudinal seal, a fourth longitudinal oil passage, a cylinder oil inlet passage, a fourth check valve, a check valve seal, a filling port, a first mounting port and a second mounting port. Figures 1-10As shown, the hydraulic system comprises a rectifier valve block 20, an oil cylinder 10, an air cylinder 30 and a measurement and control system; the rectifier valve block 20 has a first mounting port 291, a second mounting port 292, a first liquid flow channel, a second liquid flow channel, a first flow channel, a second flow channel, a first connecting channel and a second connecting channel; the first liquid flow channel and the second liquid flow channel are arranged in parallel; the first liquid flow channel is provided with a damper 255 and at least one first high-speed on-off valve 251, and the damper 255 and each first high-speed on-off valve 251 are arranged in series; the second liquid flow channel is provided with an inertial damper and at least one second high-speed on-off valve 224, and the inertial damper and each second high-speed on-off valve 224 are arranged in series; one end of the first liquid flow channel and one end of the second liquid flow channel are in communication with the first connecting channel, and the other end of the first liquid flow channel and the other end of the second liquid flow channel are in communication with the second connecting channel; the damping force of the damper 255 is the same as the damping force of the inertial damper (the length, the inner diameter of the spiral pipe 222 and the inner diameter of the damping hole (or the throttling hole) can be optimized and matched to make the damping constant when the oil circuit is switched), and the inertia of the damper 255 is different from the inertia of the inertial damper (the size of the generated inertia is related to the length and the inner diameter of the pipeline, which is a prior art and will not be described in detail); one end of the first flow channel is in communication with the first mounting port 291, and the oil liquid at the other end of the first flow channel flows into the first connecting channel in one direction through at least one first check valve 225 (the meaning of one-way flow is that the oil liquid of the former (the first flow channel) can only flow to the latter (the first connecting channel), and vice versa, the same meaning of approximate position will not be described in detail below); the oil liquid of the second flow channel flows into the first connecting channel in one direction through at least one second check valve 241; the oil liquid of the second connecting channel flows into the first flow channel in one direction through at least one third check valve 232; the oil liquid of the second connecting channel flows into the second flow channel in one direction through at least one fourth check valve 281; the second flow channel is in communication with the second mounting port 292; the oil cylinder 10 is fixedly connected to the first mounting port 291, and the oil port of the oil cylinder 10 is in communication with the first mounting port 291; the air cylinder 30 is fixedly connected to the second mounting port 292, and the oil port of the air cylinder 30 is in communication with the second mounting port 292; the measurement and control system comprises a displacement sensor 40 and a controller, the displacement sensor 40 is used for measuring the extension and retraction displacement of the oil cylinder 10; the controller is in communication connection with the displacement sensor 40, each first high-speed on-off valve 251 and each second high-speed on-off valve 224.

[0039] The elastic force is provided by the gas (high pressure gas) in the cylinder 30, and the damper force is provided by the inertance tube or damper 255 and the corresponding high-speed on-off valve during the flow of the oil through the inertance tube or damper 255 and the corresponding high-speed on-off valve (the damper force mainly comes from two parts, one part is the pressure drop generated by the flow of the oil through the high-speed on-off valve, and the other part is the throttling loss caused by the inertance tube or damper 255); the inertance tube provides a larger inertial force when the oil flows through it, and the damper 255 provides a smaller inertial force when the oil flows through it; by controlling the opening and closing of the corresponding high-speed on-off valve according to the extension and retraction displacement of the oil cylinder 10 measured by the displacement sensor 40, the switching of the oil between the two different liquid flow channels is realized, thereby realizing the two-stage regulation of the large and small inertial forces and the self-regulation of the damping characteristics; and when the controller controls all the high-speed on-off valves to be closed, the rigid locking function of the oil cylinder 10 can also be realized; the oil forms a one-way stable flow through the arrangement of the one-way valves; the switching control strategy of the first liquid flow channel and the second liquid flow channel is as follows: the relative acceleration signal can be obtained by taking the second derivative of the extension and retraction displacement of the oil cylinder 10 with respect to time (the speed signal can also be derived from the extension and retraction displacement data), when the product of the relative acceleration and the extension and retraction displacement is less than zero, the controller controls each first high-speed on-off valve 251 to be closed, and the oil flows through the second liquid flow channel, at this time, a larger inertial force is provided; when the product of the relative acceleration and the extension and retraction displacement is greater than or equal to zero, the controller controls each second high-speed on-off valve 224 to be closed, and the oil flows through the first liquid flow channel, thereby providing a smaller inertial force.

[0040] Among them, the related setting of the inertance tube and the damper 255 is as follows:

[0041] In the optional scheme of the embodiment, preferably, the inertance tube is a spiral pipe 222, and the damper 255 is a short straight passage with a damping hole.

[0042] Among them, the related setting of the high-speed on-off valve and the one-way valve is as follows:

[0043] In the optional scheme of the embodiment, preferably, as shown in Figures 1-3 , Figure 5 , Figure 7 and Figure 9 , when the number of the first high-speed on-off valve 251 is greater than or equal to 2, each first high-speed on-off valve 251 is arranged in parallel, and the damper 255 is connected in series with each first high-speed on-off valve 251; when the number of the second high-speed on-off valve 224 is greater than or equal to 2, each second high-speed on-off valve 224 is arranged in parallel, and the inertance tube is connected in series with each second high-speed on-off valve 224.

[0044] In the optional scheme of the embodiment, preferably, as shown in Figure 1 , Figures 5-10As shown, when the number of the first check valve 225, the second check valve 241, the third check valve 232 and the fourth check valve 281 are all ≥2, the corresponding valves are arranged in parallel.

[0045] The following are the relevant settings for the first flow channel:

[0046] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 , Figures 5-10 As shown, the first flow channel includes a cylinder connecting oil passage 231 and a second transverse oil passage 23; both the cylinder connecting oil passage 231 and the second transverse oil passage 23 are blind holes. The opening of the cylinder connecting oil passage 231 is connected to the first mounting port 291, and the bottom of the cylinder connecting oil passage 231 is connected to the bottom of the second transverse oil passage 23. The opening of the second transverse oil passage 23 is sealed by a second transverse seal 234. The second transverse oil passage 23 is connected to the first connecting channel through each first check valve 225. The second transverse oil passage 23 is connected to the second connecting channel through each third check valve 232 (the second transverse oil passage 23 and the third longitudinal oil passage 26 are intersected and connected, and a third check valve 232 is set at the intersection. A branch oil passage 233 is intersected and connected on the third longitudinal oil passage 26. The branch oil passage 233 is a blind hole. The bottom of the branch oil passage 233 is connected to the second transverse oil passage 23 through a third check valve 232. The opening of the branch oil passage 233 is sealed by a branch seal 235).

[0047] The following are the settings instructions for the first connection channel:

[0048] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 , Figures 5-10 As shown, the first connecting channel includes a first transverse oil passage 22 and a first longitudinal oil passage 24; both the first transverse oil passage 22 and the first longitudinal oil passage 24 are blind holes, and the opening of the first transverse oil passage 22 is sealed by a first transverse seal 226; the first longitudinal oil passage 24 is intersecting and connected with the first transverse oil passage 22, and the opening of the first longitudinal oil passage 24 is sealed by a first longitudinal seal 242; the first transverse oil passage 22 is connected to the first flow channel through each first check valve 225; the first longitudinal oil passage 24 is connected to the second flow channel through each second check valve 241; and the first transverse oil passage 22 is connected to both the inertial container and the damper 255.

[0049] The following are the settings instructions for the second connection channel:

[0050] Specifically, the second connecting channel is the third longitudinal oil passage 26, which is a blind hole, and the opening of the third longitudinal oil passage 26 is sealed by the third longitudinal seal 261.

[0051] The following are the relevant settings for the first fluid flow channel:

[0052] In the optional solution of the embodiment, preferably, as shown in Figure 1 、 Figures 5-10 illustrated, the first liquid flow channel comprises a second longitudinal oil passage 25, at least one first high-speed switching oil passage, and at least one first connecting oil passage 252; the second longitudinal oil passage 25, each first high-speed switching oil passage, and each first connecting oil passage 252 are blind holes; the second longitudinal oil passage 25 is provided with a damper 255, the opening of the second longitudinal oil passage 25 is sealed and blocked by a second longitudinal sealing member 253, and the second longitudinal oil passage 25 is cross-connected with the first transverse oil passage 22; each first high-speed switching oil passage is arranged in parallel, a first high-speed switching valve 251 is arranged at the opening of the first high-speed switching oil passage, and the bottom of the hole of each first high-speed switching oil passage is communicated with the second connecting channel; each first connecting oil passage 252 is arranged in parallel, the first connecting oil passage 252 corresponds to the first high-speed switching oil passage one by one, the opening of each first connecting oil passage 252 is respectively sealed and blocked by a first connecting sealing member 254, and the bottom of the hole of the first connecting oil passage 252 is respectively cross-connected with the first high-speed switching oil passage and the second longitudinal oil passage 25.

[0053] Among them, the related setting of the second liquid flow channel is as follows:

[0054] In the optional solution of the embodiment, preferably, as shown in Figure 1 、 Figures 5-10 illustrated, the second liquid flow channel comprises an inerter oil passage 221, a second connecting oil passage 223, and at least one second high-speed switching oil passage; the inerter oil passage 221, the second connecting oil passage 223, and each second high-speed switching oil passage are blind holes; the bottom of the hole of the inerter oil passage 221 is communicated with the first transverse oil passage 22, the opening of the inerter oil passage 221 is communicated with one end of the inerter, the other end of the inerter is communicated with the opening of the second connecting oil passage 223; each second high-speed switching oil passage is arranged in parallel, a second high-speed switching valve 224 is arranged at the opening of the second high-speed switching oil passage, the bottom of the hole of the second high-speed switching oil passage is communicated with the second connecting channel, and the second high-speed switching oil passage is cross-connected with the second connecting oil passage 223.

[0055] Among them, the related setting of the second flow channel is as follows:

[0056] In the optional solution of the embodiment, preferably, as shown in Figure 1 、 Figures 5-10As shown, the second flow channel includes a fourth longitudinal oil passage 27 and a cylinder oil inlet passage 28; both the fourth longitudinal oil passage 27 and the cylinder oil inlet passage 28 are blind holes; the opening of the fourth longitudinal oil passage 27 is in communication with the second mounting hole 292, and the fourth longitudinal oil passage 27 is in communication with the first longitudinal oil passage 24 through each second one-way valve 241; the opening of the cylinder oil inlet passage 28 is in communication with the second mounting hole 292, and the cylinder oil inlet passage 28 is in communication with the second connecting passage through each fourth one-way valve 281.

[0057] Among them, the relevant setting of the oil cylinder 10, the cylinder 30 (specifically, the structure of the oil cylinder 10 and the cylinder 30 is the existing structure, and will not be described in detail) is as follows:

[0058] Specifically, the piston rod inside the oil cylinder 10 can be telescopic along its own axis direction, and a stop washer is arranged on the piston rod. The stop washer can limit the relative rotation between the oil cylinder 10 cylinder body and the piston rod, so as to ensure that the axis of the first lifting lug 11 on the oil cylinder 10 cylinder body and the second lifting lug 21 on the rectifier valve block 20 are parallel; when the vehicle passes through the bumpy convex road section, the wheel will vibrate to the oil cylinder 10, and the oil cylinder 10 as a driving unit drives the whole damping system to work, thereby achieving the effect of damping.

[0059] Specifically, the displacement sensor 40 can adopt an external wire displacement sensor 40, or an internal magnetostrictive displacement sensor 40, which functions to measure the extension amount of the piston rod of the oil cylinder 10, the relative displacement between the piston rod and the cylinder body in the cylinder body, and the relative acceleration obtained by second-order derivation.

[0060] Specifically, the cylinder 30 is provided with a partition plate capable of moving along the axis direction of the cylinder 30, which divides the inner cavity of the cylinder 30 into a hydraulic oil warehouse and an air warehouse; the oil port of the hydraulic oil warehouse is connected and communicated with the second mounting hole 292. The air warehouse is filled with high-pressure gas. When the road surface has a convexity, the wheel drives the suspension system to rise, the hydraulic oil in the oil cylinder 10 flows through the rectifier valve block 20 and then enters the hydraulic oil warehouse of the cylinder 30, drives the partition plate to move downward, and compresses the high-pressure gas in the air warehouse, thereby achieving the effect of damping and energy dissipation. When the road surface has a concave, the high-pressure gas in the air warehouse expands to drive the partition plate to move upward, and at this time, the hydraulic oil in the hydraulic oil warehouse flows through the rectifier valve block 20 under the pushing of the partition plate, enters the oil cylinder 10, and then drives the piston rod of the oil cylinder 10 to extend, drives the wheel to move downward, and makes the wheel more fit the road surface, so as to improve the controllability.

[0061] Among them, the relevant setting of the other is as follows:

[0062] In the optional scheme of the embodiment, it is more preferred that Figure 3 and Figure 9As shown, the first flow channel is further provided with an oil filling port 29, the oil filling port 29 is used for being connected with an oil filling device, and the oil filling port 29 is openable and closable (which can be realized by setting a manual stop valve).

[0063] Specifically, by injecting oil into the oil filling port 29, the vehicle posture adjusting function can be realized.

[0064] Specifically, the input and output of the semi-active inertial hysteresis damping system of the vehicle suspension device of the embodiment can be completed in the device, and only the power supply of the whole vehicle is required.

[0065] Specifically, the oil cylinder 10 and the air cylinder 30 are integrated on the rectifier valve block 20, the oil cylinder 10 is provided with a first lifting lug 11 at an end away from the rectifier valve block 20, and the rectifier valve block 20 is fixedly provided with a second lifting lug 21 opposite to the first lifting lug 11, the first lifting lug 11 is used for being connected with a wheel hinge, and the second lifting lug 21 is used for being connected with a vehicle body hinge.

[0066] Specifically, each sealing member for sealing and plugging the corresponding opening can adopt a high-pressure-resistant sealing screw.

[0067] Specifically, the first one-way valve 225, the second one-way valve 241, the third one-way valve 232 and the fourth one-way valve 281 are installed in the corresponding one-way valve oil channels, the one-way valve oil channels are blind holes, each one-way valve oil channel is connected with the corresponding oil channel (except for one third one-way valve 232 at the intersection of the third longitudinal oil channel 26 and the second transverse oil channel 23), and the opening of the one-way valve oil channel is sealed and plugged by a one-way valve sealing member 282.

[0068] The principles and implementation modes of the present application are described by using specific examples in the present application, the above embodiment is only used for helping to understand the method and core idea of the present application; meanwhile, for the general technical personnel in the art, according to the idea of the present application, the specific implementation mode and application range will be changed. In conclusion, the content of the specification should not be understood as the limitation of the present application.

Claims

1. A semi-active inertial capacitance damping system for a vehicle suspension, characterized in that: The rectifier valve block, the oil cylinder, the air cylinder and the measurement and control system are included. The first installation port, the second installation port, the first liquid flow channel, the second liquid flow channel, the first flow channel, the second flow channel, the first connection channel and the second connection channel are arranged in the rectifier valve block; the first liquid flow channel and the second liquid flow channel are arranged in parallel; the damper and at least one first high-speed switch valve are arranged in the first liquid flow channel, and the damper and each first high-speed switch valve are arranged in series; the inertial container and at least one second high-speed switch valve are arranged in the second liquid flow channel, and the inertial container and each second high-speed switch valve are arranged in series; one end of the first liquid flow channel and the second liquid flow channel is communicated with the first connection channel, and the other end of the first liquid flow channel and the second liquid flow channel is communicated with the second connection channel; the damping force of the damper is the same as the damping force of the inertial container, and the inertial force of the damper is different from the inertial force of the inertial container; One end of the first flow channel is communicated with the first installation port, and the oil liquid at the other end of the first flow channel flows into the first connection channel in one direction through at least one first one-way valve; the oil liquid of the second flow channel flows into the first connection channel in one direction through at least one second one-way valve; the oil liquid of the second connection channel flows into the first flow channel in one direction through at least one third one-way valve; the oil liquid of the second connection channel flows into the second flow channel in one direction through at least one fourth one-way valve; The second flow channel is communicated with the second installation port; The oil cylinder is fixedly connected to the first installation port, and the oil port of the oil cylinder is communicated with the first installation port; The air cylinder is fixedly connected to the second installation port, and the oil port of the air cylinder is communicated with the second installation port; The measurement and control system includes a displacement sensor and a controller, the displacement sensor is used for measuring the extension and retraction displacement of the oil cylinder; the controller is in communication connection with the displacement sensor, each first high-speed switch valve and each second high-speed switch valve.

2. The semi-active inerter suspension system of a vehicle according to claim 1, wherein: The first flow channel is further provided with an oil filling port, the oil filling port is used for being connected with an oil filling device, and the oil filling port can be opened and closed.

3. The semi-active inerter suspension system of a vehicle according to claim 1, wherein: When the number of the first high-speed switch valves is greater than or equal to 2, each first high-speed switch valve is arranged in parallel, and the damper and each first high-speed switch valve are connected in series; When the number of the second high-speed switch valves is greater than or equal to 2, each second high-speed switch valve is arranged in parallel, and the inertial container and each second high-speed switch valve are connected in series.

4. The semi-active inerter suspension system of claim 3, wherein: When the number of the first one-way valve, the second one-way valve, the third one-way valve and the fourth one-way valve is greater than or equal to 2, each corresponding valve is arranged in parallel.

5. The semi-active inerter suspension system of claim 4, wherein: The first flow channel includes an oil cylinder communication oil channel and a second transverse oil channel; the oil cylinder communication oil channel and the second transverse oil channel are both blind holes, the opening of the oil cylinder communication oil channel is communicated with the first installation port, the hole bottom of the oil cylinder communication oil channel is communicated with the hole bottom of the second transverse oil channel, and the second transverse oil channel opening is sealed and blocked by a second transverse sealing member; The second transverse oil passage is communicated with the first connecting passage through each first one-way valve; and the second transverse oil passage is communicated with the second connecting passage through each third one-way valve.

6. The semi-active inerter suspension system of claim 4, wherein: The first connecting passage comprises a first transverse oil passage and a first longitudinal oil passage; The first transverse oil passage and the first longitudinal oil passage are both blind holes, the opening of the first transverse oil passage is sealed by a first transverse sealing member, the first longitudinal oil passage is cross communicated with the first transverse oil passage, the opening of the first longitudinal oil passage is sealed by a first longitudinal sealing member, the first transverse oil passage is communicated with the first flow passage through each first one-way valve, the first longitudinal oil passage is communicated with the second flow passage through each second one-way valve, and the first transverse oil passage is communicated with the inerter and the damper.

7. The semi-active inerter suspension system of a vehicle according to claim 6, wherein: The first liquid flow passage comprises a second longitudinal oil passage, at least one first high-speed switching oil passage and at least one first connecting oil passage; The second longitudinal oil passage, each first high-speed switching oil passage and each first connecting oil passage are all blind holes; the damper is arranged in the second longitudinal oil passage, the opening of the second longitudinal oil passage is sealed by a second longitudinal sealing member, and the second longitudinal oil passage is cross communicated with the first transverse oil passage; each first high-speed switching oil passage is arranged in parallel, the first high-speed switching valve is arranged at the opening of the first high-speed switching oil passage, and the bottom of the hole of the first high-speed switching oil passage is communicated with the second connecting passage; each first connecting oil passage is arranged in parallel, the first connecting oil passage corresponds to the first high-speed switching oil passage, the opening of each first connecting oil passage is respectively sealed by a first connecting sealing member, and the bottom of the hole of the first connecting oil passage is cross communicated with the first high-speed switching oil passage and the second longitudinal oil passage respectively.

8. The semi-active inerter suspension system of claim 6, wherein: The second liquid flow passage comprises an inerter oil passage, a second connecting oil passage and at least one second high-speed switching oil passage; The inerter oil passage, the second connecting oil passage and each second high-speed switching oil passage are all blind holes; the bottom of the hole of the inerter oil passage is communicated with the first transverse oil passage, and the opening of the inerter oil passage is communicated with one end of the inerter; the other end of the inerter is communicated with the opening of the second connecting oil passage; each second high-speed switching oil passage is arranged in parallel, the second high-speed switching valve is arranged at the opening of the second high-speed switching oil passage, the bottom of the hole of the second high-speed switching oil passage is communicated with the second connecting passage, and the second high-speed switching oil passage is cross communicated with the second connecting oil passage.

9. The semi-active inerter suspension system of claim 6, wherein: The second flow passage comprises a fourth longitudinal oil passage and a cylinder oil inlet passage; The fourth longitudinal oil passage and the cylinder oil inlet passage are both blind holes; the opening of the fourth longitudinal oil passage is communicated with the second mounting port, and the fourth longitudinal oil passage is communicated with the first longitudinal oil passage through each second one-way valve; the opening of the cylinder oil inlet passage is communicated with the second mounting port, and the cylinder oil inlet passage is communicated with the second connecting passage through each fourth one-way valve.

10. The semi-active inerter suspension system of a vehicle according to claim 1, wherein: The inerter is a spiral pipe, and the damper is a short straight passage with a damping hole.

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