CN115217883A

CN115217883A - Adjustable control valve for electric control shock absorber and electric control shock absorber

Info

Publication number: CN115217883A
Application number: CN202211028083.6A
Authority: CN
Inventors: 黄震
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2022-10-21
Anticipated expiration: 2042-08-25
Also published as: CN115217883B

Abstract

The present disclosure provides an adjustable control valve for an electronic control shock absorber and an electronic control shock absorber, the adjustable control valve comprising: an electromagnet configured to generate an electromagnetic force; the valve body is connected with the electromagnet; the valve control core moves under the driving of electromagnetic force; the cavity forming part comprises a first reciprocating element, a second reciprocating element and a jacket assembly. The first reciprocating element and the second reciprocating element are sleeved outside the valve body, the first reciprocating element and the second reciprocating element are arranged oppositely in the axial direction of the valve control core, the outer sleeve component is surrounded outside the valve body, a first cavity is formed in the peripheral space of the outer sleeve component to allow main path flow to circulate, the outer sleeve component, the first reciprocating element and the second reciprocating element and the valve body are surrounded together to form a second cavity, the valve body and the valve control core are matched to form a third cavity, pressure adjustability of the third cavity is achieved according to the movement of the valve control core, and the third cavity is communicated with the second cavity to allow branch path flow to circulate. The adjustable control valve can continuously control the damping force of the shock absorber and has the advantages of high control precision, quick response and low cost.

Description

Adjustable control valve for electric control shock absorber and electric control shock absorber

Technical Field

The disclosure relates to an adjustable control valve for an electronic control shock absorber and the electronic control shock absorber.

Background

With the development of the automobile industry, intelligent components and parts integrated with mechatronics are increasingly applied to various types of automobiles. Suspension is the main assembly of an automobile that elastically couples a vehicle body and an axle (or wheel). The shock absorber of the suspension has the functions of buffering and inhibiting impact and vibration caused by uneven road surfaces, quickly attenuating the vibration of a vehicle body and wheels, and keeping the ground gripping force of the vehicle so as to ensure the driving smoothness and stability of the vehicle. Because the shock absorber has great influence on the relaxation and attenuation of the vibration and the impact, the shock absorber with excellent function plays an important role in ensuring the stability, the safety and the comfort of the automobile during high-speed running.

Disclosure of Invention

At least one embodiment of the present disclosure provides an adjustable control valve for an electronically controlled shock absorber, comprising: an electromagnet configured at least in part to generate a corresponding electromagnetic force when a current is passed therethrough; a valve body connected with the electromagnet; a valve control core disposed in a main cavity of the valve body, the valve control core being configured to be movable in an axial direction of the main cavity of the valve body by the electromagnetic force, wherein the axial direction of the valve control core is coaxial with or parallel to the axial direction of the main cavity; the cavity forming part comprises a first reciprocating piece, a second reciprocating piece and a jacket assembly, wherein the first reciprocating piece and the second reciprocating piece are sleeved on the outer side of the valve body, the first reciprocating piece and the second reciprocating piece are arranged oppositely in the axial direction of the valve control core, the jacket assembly is arranged on the outer side of the valve body in a surrounding mode, a first cavity is formed in the peripheral space of the jacket assembly and is used for main path flow circulation of target liquid, the jacket assembly, the first reciprocating piece, the second reciprocating piece and the valve body are arranged together in a surrounding mode to form a second cavity, the valve body and the valve control core are matched to form a third cavity, the third cavity is configured to achieve pressure adjustability according to the valve control core along the axial movement, and the third cavity is communicated with the second cavity and is used for branch path flow circulation of the target liquid.

For example, in at least one embodiment of the present disclosure, an adjustable control valve is provided in which the housing assembly includes a first housing corresponding to the first shuttle and a second housing corresponding to the second shuttle; the chamber constituent further comprises a separator seat configured to separate the second chamber into a first sub-chamber and a second sub-chamber; first sub-chamber by first overcoat first reciprocating motion piece the valve body and the formation is enclosed to the separator seat, the second sub-chamber by the second overcoat second reciprocating motion piece the valve body and the formation is enclosed to the separator seat.

For example, at least one embodiment of the present disclosure provides an adjustable control valve further including a first hydraulic control valve and a second hydraulic control valve, where the first hydraulic control valve is connected to one end of the first reciprocating member in the axial direction of the valve control core, the end being close to the second reciprocating member, the first hydraulic control valve is sleeved on the outer side of the valve body, the second hydraulic control valve is connected to one end of the second reciprocating member in the axial direction of the valve control core, the end being close to the first reciprocating member, and the second hydraulic control valve is sleeved on the outer side of the valve body.

For example, in an adjustable control valve provided in at least one embodiment of the present disclosure, each of the first and second hydraulic control valves is provided with a first through hole on both sides in a radial direction of the valve control core, respectively, to form at least a part of the second chamber; each of the first and second shuttles is provided with second through holes on both sides in a radial direction of the valve control core, respectively; an axial direction of the first through hole and an axial direction of the second through hole are respectively parallel to an axial direction of the valve control core, and the first through hole and the corresponding second through hole are provided so as to be at least partially aligned so as to communicate with each other.

For example, in at least one embodiment of the present disclosure, there is provided an adjustable control valve, wherein the second through hole of the first shuttle and the second through hole of the second shuttle are respectively communicated with the first chamber to pass the main path flow rate flowing in from the second through hole.

For example, at least one embodiment of the present disclosure provides an adjustable control valve further including a first balance spring located in the first sub-chamber and a second balance spring located in the second sub-chamber, wherein an axial direction of the second balance spring and an axial direction of the first balance spring are respectively parallel to an axial direction of the valve control core, the first balance spring is sleeved on an outer side of the valve body, the first balance spring is disposed between the first hydraulic control valve and the separation seat, the second balance spring is sleeved on an outer side of the valve body, and the second balance spring is disposed between the second hydraulic control valve and the separation seat.

For example, at least one embodiment of the present disclosure provides an adjustable control valve further including an inner through spring plate, wherein the inner through spring plate is provided in the first and second reciprocating members, respectively, at an end distant from each other in an axial direction of the valve control core, the inner through spring plate is enclosed outside the valve body, the inner through spring plate is provided with an inner through hole, and the inner through hole of the inner through spring plate and the corresponding second through hole are provided to be at least partially aligned so as to communicate with each other.

For example, at least one embodiment of the present disclosure provides an adjustable control valve further comprising: the first reciprocating element is arranged on the first hydraulic control valve, the first valve plate and/or the second adjusting valve plate are arranged between the first reciprocating element and the first hydraulic control valve, and/or the first valve plate and/or the second adjusting valve plate are arranged between the second reciprocating element and the second hydraulic control valve.

For example, in an adjustable control valve provided by at least one embodiment of the present disclosure, the valve body includes at least one lateral port, the lateral port communicates with the main chamber and the second chamber respectively, and the at least one lateral port includes: at least one first lateral valve port in communication with the first subchamber, and at least one second lateral valve port in communication with the second subchamber, to form at least a portion of the third chamber.

For example, in at least one embodiment of the present disclosure, the valve control core is cylindrical, and one end of the lateral valve port, which is far away from the outer sleeve component in the radial direction of the valve control core, is provided with an end surface with a curvature matched with that of the valve control core, so that the third cavity is configured to realize pressure adjustability for opening and closing of the lateral valve port through the outer surface of the valve control core in the radial direction.

For example, in an adjustable control valve provided in at least one embodiment of the present disclosure, the cavity component includes a to-be-controlled fitting portion located on an inner wall of the main cavity of the valve body, and the to-be-controlled fitting portion is located between the first lateral valve port and the second lateral valve port in an axial direction of the valve control core; the to-be-controlled matching part comprises a first inner valve assembly, a second inner valve assembly and a first positioning ring which is arranged between the first inner valve assembly and the second inner valve assembly in the axial direction of the valve control core, and the axial direction of the first inner valve assembly and the axial direction of the second inner valve assembly are respectively parallel to the axial direction of the valve control core.

For example, in an adjustable control valve provided by at least one embodiment of the present disclosure, the first inner valve component and/or the second inner valve component are/is a one-way valve, the one-way valve includes an inner valve body and an inner valve spring plate disposed on one side of the inner valve body close to the first positioning ring, the inner valve body is annular, third through holes are respectively opened on two sides of the inner valve body in the radial direction of the valve control core, and an inner hole of the first positioning ring and the third through hole of the first inner valve component and/or the third through hole of the second inner valve component are/is at least partially aligned so as to communicate with each other, so as to form at least a part of the third cavity.

For example, in at least one embodiment of the present disclosure, an outer surface of the first portion of the valve control core is provided with a concave-convex shape, and the concave-convex shape is configured to adjust a gap formed with the to-be-controlled engagement portion of the valve body when the valve control core moves in the axial direction, so that the third chamber is pressure-adjustable when the valve control core moves in the axial direction.

For example, in an adjustable control valve provided in at least one embodiment of the present disclosure, the concave-convex shape of the outer surface of the first portion of the valve control core includes at least two sections of recesses, the outer surfaces of bosses corresponding to the at least two sections of recesses are respectively a plane, and the outer diameter of each boss is equal to the inner diameter of the inner valve body; a dimension of the recess in the axial direction of the valve control core is equal to a sum of a dimension of the first positioning ring in the axial direction of the valve control core and a dimension of the first or second inner valve assembly in the axial direction of the valve control core; the outer surface of the boss has a dimension in the axial direction of the valve control core that is smaller than a dimension of the first positioning ring in the axial direction of the valve control core.

For example, in at least one embodiment of the disclosure, an outer surface of the second portion of the valve control core is provided as an inner groove and configured to be engaged with the lateral valve port, such that the valve control core communicates with the gap formed by the portion of the valve body to be engaged and the lateral valve port to allow the bypass flow to pass through.

For example, in at least one embodiment of the present disclosure, an adjustable control valve is provided, wherein a side of one of the first and second inner valve assemblies, which is remote from the electromagnet, is provided with a second positioning ring.

For example, in an adjustable control valve provided in at least one embodiment of the present disclosure, the cavity constituent part and the valve body are respectively disposed symmetrically with respect to an axial direction of the valve control core.

At least one embodiment of the present disclosure further provides an electrically controlled shock absorber, including the adjustable control valve as described in any one of the above, which is externally disposed, wherein the electrically controlled shock absorber further includes a control valve tube, and at least a portion of the electromagnet of the adjustable control valve is fixed with the control valve tube.

At least one embodiment of the present disclosure further provides an electrically controlled shock absorber, including the adjustable control valve as described in any one of the above, wherein the adjustable control valve is built-in, and the electrically controlled shock absorber further includes a hollow connecting rod, and at least a portion of the electromagnet of the adjustable control valve is connected to the hollow connecting rod.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

1-2 are cross-sectional schematic views of an adjustable control valve provided in accordance with certain embodiments of the present disclosure, wherein FIG. 2 shares the same features as FIG. 1, but FIG. 2 is labeled with a different number than FIG. 1;

FIG. 3 is a schematic illustration in cross-section of an adjustable control valve according to further embodiments of the present disclosure;

FIG. 4 is an enlarged partial schematic view of FIG. 3;

FIG. 5 is an enlarged partial schematic view of FIG. 4;

fig. 6A-6D are schematic views illustrating the state of the to-be-controlled engagement portion engaging with the valve control core at different strokes of the valve control core according to some embodiments of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The use of "first," "second," and similar terms in the embodiments of the disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The use of the terms "a" and "an" or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. Similarly, the word "comprising" or "comprises", and the like, means that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Flow charts are used in the disclosed embodiments to illustrate the steps of a method according to an embodiment of the disclosure. It should be understood that the preceding or subsequent steps need not be performed in the exact order shown. Rather, various steps may be processed in reverse order or simultaneously. Meanwhile, other operations may be added to the processes, or a certain step or steps may be removed from the processes.

At present, the existing products in the automobile market mainly comprise common shock absorbers. The inventor of the disclosure finds that the damping coefficient of the common shock absorber is single, and the requirements of safety, smoothness and comfort of an automobile can not be well met under different road conditions. Adjustable shock absorbers have thus been introduced in some medium and high end vehicle models. Moreover, more and more automobile manufacturers introduce an electronic control shock absorber system when developing new automobile models. However, the inventor of the present disclosure finds that, in the field of automobiles, the control precision of the electric control valve applied to the shock absorber is limited, the response is slow, the cost is high, and the requirements cannot be well met.

To this end, at least one embodiment of the present disclosure provides an adjustable control valve for an electronically controlled shock absorber that includes an electromagnet, a valve body, a valve control core, and a cavity forming portion. At least a portion of the electromagnets are configured to generate a corresponding electromagnetic force when an electric current is passed therethrough; the valve body is connected with the electromagnet; the valve control core is arranged in the main cavity of the valve body, the valve control core is configured to be capable of moving along the axial direction of the main cavity of the valve body under the driving of electromagnetic force, and the axial direction of the valve control core is coaxial or parallel to the axial direction of the main cavity of the valve body; the cavity forming part comprises a first reciprocating element, a second reciprocating element and a jacket assembly, the first reciprocating element and the second reciprocating element are sleeved on the outer side of the valve body, and the first reciprocating element and the second reciprocating element are oppositely arranged along the axial direction of the valve control core; the outer sleeve component is arranged on the outer side of the valve body in an enclosing mode, a first cavity is formed in the peripheral space of the outer sleeve component and is used for main path flow circulation of target liquid, and the outer sleeve component, the first reciprocating piece, the second reciprocating piece and the valve body are arranged in an enclosing mode to form a second cavity; the valve body and the valve control core are matched to form a third cavity, the third cavity is configured to achieve pressure adjustment according to axial movement of the valve control core, and the third cavity is communicated with the second cavity to allow branch flow of target liquid to flow through.

The adjustable control valve of the embodiment of the disclosure adopts a three-cavity design and continuously controls the pressure of the working cavity through the continuous movement of the valve control core, so that the effect of continuously controlling the damping force of the shock absorber can be achieved, and the adjustable control valve has the advantages of high control precision, quick response and low cost.

At least one embodiment of the present disclosure also provides an electronically controlled shock absorber including the adjustable control valve described above.

Some embodiments of the present disclosure and examples thereof are described in detail below with reference to the accompanying drawings.

Fig. 1-2 are schematic cross-sectional views of an adjustable control valve provided in accordance with some embodiments of the present disclosure, wherein fig. 2 and 1 are drawings in which the same features are present in accordance with embodiments of the present disclosure, and wherein different numbers are indicated in fig. 2 as compared to fig. 1, e.g., fig. 2 has some numbers not shown in fig. 1, to facilitate clarity of the description and drawings herein.

FIG. 3 is a schematic cross-sectional view of an adjustable control valve according to further embodiments of the present disclosure. Fig. 4 is a partially enlarged view of fig. 3. Fig. 5 is a partially enlarged view of fig. 4.

For convenience of description, hereinafter, the embodiment of the present disclosure will refer to a side of the adjustable control valve of fig. 1 to 4, which is close to the valve control core 3 in the radial direction, as an "inner side", and a side, which is away from the valve control core 3, as an "outer side". As used herein, "axial" refers to the direction of the central axis of the adjustable control valve as a whole, which is parallel or coaxial with the axial direction of the valve control core 3. The orientations of the embodiments of the present disclosure are relative positions, and do not limit the scope of the present disclosure. It should be noted that, for convenience of description, drawing directions, such as up, down, left, right, etc., are also introduced in the embodiments of the present disclosure, for example, the axial direction of the valve control core 3 is the up-down drawing direction in fig. 1-4, and the radial direction of the adjustable control valve or the valve control core 3 is the left-right drawing direction in fig. 1-4, and these definitions do not affect the orientation in practical application, and the protection scope of the present disclosure is not affected thereby.

For example, as shown in fig. 1 to 4, an adjustable control valve provided by at least one embodiment of the present disclosure includes an electromagnet 1, a valve body 2, a valve control core 3, and a cavity constituent part 4. At least part of the electromagnet 1 is configured to generate a corresponding electromagnetic force when a current is passed through it. The valve body 2 is connected to the electromagnet 1. The valve control core 3 is disposed in the main cavity 21 of the valve body 2, the valve control core 3 is configured to be movable in the axial direction of the main cavity 21 of the valve body 2 under the driving of electromagnetic force, and the axial direction of the valve control core 3 is coaxial or parallel with the axial direction of the main cavity 21 of the valve body 2.

For example, the cavity constituting part 4 includes a first shuttle 41, a second shuttle 42 and a jacket member 43. The first and second reciprocators 41 and 42 are fitted around the outside of the valve body 2, and the first and second reciprocators 41 and 42 are disposed opposite to each other in the axial direction of the valve control core 3.

For example, as shown in FIG. 1, the cover assembly 43 includes a first cover 431 corresponding to the first shuttle 41 and a second cover 432 corresponding to the second shuttle 42. For example, the first shuttle 41 sleeves the upper end of the first outer sleeve 431 and the second shuttle 42 sleeves the lower end of the second outer sleeve 432.

For example, the outer jacket 43 is disposed around (i.e., disposed around) the outside of the valve body 2, and the peripheral space of the outer jacket 43 forms a first chamber Q1 for the main flow rate of the target liquid to flow through. The outer housing assembly 43, the first shuttle 41, the second shuttle 42 and the valve body 2 together enclose a second chamber Q2. The valve body 2 and the valve control core 3 are matched to form a third cavity Q3, the third cavity Q3 is configured to achieve pressure adjustability according to axial movement of the valve control core 3, and the third cavity Q3 is communicated with the second cavity Q2 to enable branch flow of target liquid to flow.

For example, when the valve control core 3 moves along the axial direction, the pressure relief of the third chamber Q3 can be controlled by controlling the size of the flow relief area, so that the pressure of the third chamber Q3 can be adjusted, and the pressure of the second chamber Q2 can be controlled. For example, hereinafter, the clearance control is performed by the cooperation of the portion to be controlled of the valve body 2 and the control portion of the valve core 3 to control the liquid leakage flow.

In some examples, the first chamber Q1, the second chamber Q2, and the third chamber Q3 of the embodiments of the present disclosure may also be referred to as an outer chamber, a middle chamber, and an inner chamber, respectively, depending on the position of the arrangement. For example, the lumen may also be referred to as a working lumen and the lumen may also be referred to as a control lumen. It should be noted that the nomenclature of the components herein is merely exemplary, and not limiting of the present disclosure, which is primarily for convenience of description herein, nor is the scope of the present disclosure limited thereby.

According to the adjustable control valve disclosed by the embodiment of the disclosure, the pressure of the working middle cavity is continuously controlled through the design of the inner cavity, the middle cavity and the outer cavity and through the continuous movement of the valve control core, so that the effect of connecting and controlling the damping force of the shock absorber can be achieved, and the adjustable control valve has the advantages of high control precision, quick response and low cost.

For example, the electronically controlled shock absorber of the embodiments of the present disclosure includes an adjustable control valve and a hollow connecting rod 101, and at least a portion of the electromagnet 1 is connected to the hollow connecting rod 101. Thus, the adjustable valve is formed as a built-in valve structure.

In other examples, the electronically controlled shock absorber includes the adjustable control valve described above and a control valve tube (not shown) to which at least a portion of the electromagnet 1 is secured. Thus, the controllable valve is formed as an external valve structure.

The structure of the adjustable control valve included in the electronic control shock absorber according to the embodiments of the present disclosure may refer to the adjustable control valve according to any of the embodiments herein, and thus, the technical effects of the electronic control shock absorber may refer to the description of the adjustable control valve herein, and are not described herein again.

For example, when the electronically controlled shock absorber is operated at the extension end, fluid flows from the upper end to the lower end, such as the path through which flow A passes and the path through which flow B passes as shown in FIG. 1. For another example, when the electronically controlled shock absorber is operated at the compression end, fluid flows from the lower end to the upper end, such as the path through which flow rate C passes and the path through which flow rate D passes as shown in fig. 1.

For example, as shown in fig. 1 and 2, the electromagnet 1 includes a coil 12, and the coil 12 is configured to generate a corresponding electromagnetic field to generate an electromagnetic force when a current is passed therethrough, and acts on the valve control core 3. Thus, the valve control core 3 can move along the axial direction of the main cavity 21 of the valve body 2 under the driving of the electromagnetic force, so that the size of the leakage area can be controlled, and the pressure of the third cavity Q3 and the second cavity Q2 can be further controlled, and the damping force of the shock absorber can be further controlled.

For example, as shown in fig. 1 and 2, the adjustable control valve further includes a valve housing 91, and the valve body 2 is coupled to the valve housing 91. This is merely exemplary and is not a limitation of the present disclosure. It should be noted that the valve sleeve 91 and the valve body 2 can be combined together not only by the thread coupling manner as shown in fig. 1-2, but also by other methods, such as laser welding, riveting, etc., and the embodiments of the present disclosure are not limited thereto.

It should be further noted that, in order to implement the adjusting function of the adjustable control valve of the embodiment of the present disclosure when applied to the electronically controlled shock absorber, a person skilled in the art may provide and arrange other components, such as the non-magnetic sleeve, etc., in the electromagnet 1 according to specific needs, and the embodiment of the present disclosure is not limited thereto, and since the emphasis of the embodiment of the present disclosure is not described herein, the detailed description is omitted here.

For example, as shown in fig. 1, the chamber constituent part 4 further includes a separation seat 44, and the separation seat 44 is configured to divide the second chamber Q2 into a first sub-chamber Q1 and a second sub-chamber Q2. The first sub-chamber q1 is defined by the first outer sleeve 431, the first reciprocating member 41, the valve body 2, and the separating seat 44. The second sub-chamber q2 is defined by the second outer sleeve 432, the second shuttle 42, the valve body 2 and the separating seat 44.

Embodiments of the present disclosure may separate the central cavity into upper and lower working areas by a separating seat, thereby separating the upper and lower working areas into a tension working area and a compression working area.

In some examples, the separating seat 44 may be press-fit to seal the inner and outer ends of the separating seat when separating the middle chamber, or may be a special seal to completely separate the upper and lower portions, which is not limited by the embodiments of the present disclosure.

For example, as shown in FIG. 1, the adjustable control valve further includes a first hydraulic control valve 61 and a second hydraulic control valve 62. The first hydraulic control valve 61 is connected to the first reciprocating member 41, and one end of the first reciprocating member 41 near the second reciprocating member 42 in the axial direction of the valve core 3. The second hydraulic control valve 62 is connected to the second reciprocating member 42, and one end of the second reciprocating member 42 near the first reciprocating member 41 in the axial direction of the valve control core 3.

For example, in the example of fig. 1, a first hydraulic control valve 61 is located at the lower end of the first reciprocating member 41, and a second hydraulic control valve 62 is located at the upper end of the second reciprocating member 42. The first hydraulic control valve 61 is sleeved outside the valve body 2, and the second hydraulic control valve 62 is sleeved outside the valve body 2.

Embodiments of the present disclosure may control a pressure difference generated when a fluid flows through by opening heights of upper and lower hydraulic control valves to control a tension pressure difference or a compression pressure difference.

For example, the first reciprocating member 41 is a first piston reciprocally linearly movable, and the second reciprocating member 42 is a second piston reciprocally linearly movable. These are merely exemplary and are not intended to limit the embodiments of the present disclosure, as long as the components can be pushed to reciprocate by a force, and are not exhaustive or described in detail herein.

In some examples, the first shuttle 41, the second shuttle 42, the first outer sleeve 431, and the second outer sleeve 432 may be fixedly attached to the valve body 2, either directly or indirectly.

For example, as shown in fig. 1 and 2, the adjustable control valve further includes a first balance spring 51 located in the first sub-chamber q1 and a second balance spring 52 located in the second sub-chamber q2, and an axial direction of the second balance spring 52 and an axial direction of the first balance spring 51 are parallel to an axial direction of the valve control core 3, respectively. For example, the first balance spring 51 is fitted around the outside of the valve body 2, and the first balance spring 51 is disposed between the first hydraulic control valve 61 and the separation seat 44. For example, the second balance spring 52 is fitted around the outside of the valve body 2, and the second balance spring 52 is disposed between the second hydraulic control valve 62 and the release seat 44.

According to the embodiment of the disclosure, the stress of the hydraulic control valve can be balanced when the hydraulic control valve moves through the spring force of the balance spring, and the back pressure of the corresponding hydraulic control valve is adjusted.

For example, when the valve control core 3 is depressurized by an axial movement (see below), the pressure in the second chamber Q2 is reduced, and the first hydraulic control valve 61 moves downward, and the first hydraulic control valve 61 compresses the first balance spring 51, and the first balance spring 51 makes the first hydraulic control valve 61 balanced by the spring force. This is merely an example to facilitate the reader's understanding of the techniques of the embodiments of the disclosure and is not intended to be a limitation of the embodiments of the disclosure.

In some examples, the cavity constituent part 4 and the valve body 2 are respectively symmetrical or approximately symmetrical with respect to the axial direction of the valve control core 3. Therefore, the adjustable control valve disclosed by the embodiment of the disclosure has the advantages of stable structure, simple processing technology and lower cost. Of course, this is merely exemplary and not a limitation of the present disclosure.

It should be noted that, the present disclosure mainly uses an approximately symmetrical adjustable control valve as an example, and therefore, for some parts or positions that are symmetrical up and down or left and right in the drawings, the present disclosure only marks a reference numeral on one side of the parts or positions, so as to make the drawings concise and clear, which does not affect the understanding of the technical solutions of the embodiments of the present disclosure by those skilled in the art, and will not affect the protection scope of the present disclosure.

For example, as shown in fig. 1, the outer surfaces of the first reciprocating member 41 and/or the second reciprocating member 42 are respectively provided with piston rings 47, so that axial sealing and low friction force in up-and-down sliding can be provided.

For example, as shown in fig. 1, a seal ring 63 is provided between each of the first hydraulic control valve 61 and the second hydraulic control valve 62 and the valve body 2, so that axial sealing can be provided.

For example, as shown in fig. 1 and 2, the adjustable control valve further includes a third spring 53, the third spring 53 is connected to one end of the valve control core 3 remote from the electromagnet 1 (i.e., the third spring 53 is connected to the lower end of the valve control core 3), and the electromagnet 1 includes a fourth spring 11 connected to the other end of the valve control core 3 (i.e., the upper end of the valve control core 3). As such, embodiments of the present disclosure may provide pre-stress and spring rate by providing a spring.

For example, as shown in fig. 1, the adjustable control valve further includes an adjusting nut 71 and a bolt 72, the adjusting nut 71 is disposed on a side of the valve body 2 away from the electromagnet 1, and the adjusting nut 71 is configured to adjust the preload of the third spring 53. A bolt 72 is located on the side of the adjusting nut 71 remote from the electromagnet 1, the bolt 72 being configured to tighten the adjustable control valve, which may lock the entire adjustable control valve.

For example, as shown in fig. 2, each of the first hydraulic control valve 61 and the second hydraulic control valve 62 is provided with a first through hole 6a on both sides in the radial direction of the valve control core 3, respectively, to form at least a part of the second chamber Q2.

For example, in the example of fig. 2, the first hydraulic control valve 61 is opened with first through holes 6a on the left and right sides, respectively. As such, a cavity portion between the lower end of the first hydraulic control valve 61 and the separating seat 44 communicates with the first through hole 6a of the first hydraulic control valve 61 to form the first sub-chamber q1. For example, in the example of fig. 2, the left and right sides of the second hydraulic control valve 62 are opened with first through holes 6a, respectively. As such, a cavity portion between the upper end of the second hydraulic control valve 62 and the separating seat 44 communicates with the first through hole 6a of the second hydraulic control valve 62 to form the second sub-chamber q2.

For example, as shown in fig. 2, each of the first and

second shuttles

41 and 42 is provided with the second through-holes 4a, respectively, on both sides in the radial direction of the valve control core 3. For example, in the example of fig. 2, the left and right sides of the first reciprocating member 41 are opened with the second through holes 4a, respectively, and the left and right sides of the second reciprocating member 42 are opened with the second through holes 4a, respectively.

For example, the axial direction of the first through hole 6a and the axial direction of the second through hole 4a are respectively parallel to the axial direction of the valve control core 3, and the first through hole 6a and the corresponding second through hole 4a are provided so as to be at least partially aligned so as to communicate with each other to provide a flow space for the liquid. Illustratively, the first through holes 6a are arranged coaxially with the corresponding second through holes 4a. Of course, this is merely exemplary and not a limitation of the present disclosure.

For example, as shown in fig. 2, the second through hole 4a of the first shuttle 41 and the second through hole 4a of the second shuttle 42 communicate with the first chamber Q1, respectively, so that a main path flow flowing in from the second through hole 4a may pass, such as the fluid path a and the fluid path C shown in fig. 2. For example, the second through hole 4a of the first shuttle 41 may be in communication with the first chamber Q1 through an outer passage of the first shuttle 41, and the second through hole 4a of the second shuttle 42 may be in communication with the first chamber Q1 through an outer passage of the second shuttle 42.

Based on the above, the embodiments of the present disclosure can obtain various damping forces of the electronically controlled shock absorber, which are required in practical use, by the ingenious design of the three cavities arranged inside and outside in sequence.

In some examples, the adjustable control valve further includes an inner passage spring plate 45, and the inner passage spring plates 45 are provided in the first and

second shuttles

41 and 42, respectively, at ends that are away from each other in the axial direction of the valve control core 3. For example, as shown in fig. 1 and 2, the first reciprocating member 41 is provided at its upper end with an inner through spring plate 45, and the second reciprocating member 42 is also provided at its lower end with an inner through spring plate 45. The passage of the first cavity Q1 of the embodiment of the present disclosure may be unidirectionally blocked by the upper end of the internal through spring plate 45.

For example, as shown in fig. 1 and 2, an inner through spring piece 45 is enclosed outside the valve body 2, the inner through spring piece 45 is provided with an inner through hole, and the inner through hole of the inner through spring piece 45 and the corresponding second through hole 4a are provided to be at least partially aligned so as to communicate with each other to provide a flow space for the liquid.

For example, as shown in fig. 1 and 2, the adjustable control valve further comprises: a first valve plate 48 and/or a second regulator valve plate 46 provided between the first shuttle 41 and the first hydraulic control valve 61, and/or a first valve plate 48 and/or a second regulator valve plate 46 provided between the second shuttle 42 and the second hydraulic control valve 62. For example, the first valve plate 48 and/or the second regulating valve plate 46 may be used to elastically open each corresponding fluid passage and regulate the flow amount using the through hole.

The opening of the main loop corresponding to the main flow rate of the target liquid in the embodiment of the present disclosure may be controlled by the first hydraulic control valve 61 and the second hydraulic control valve 62, and the magnitude of the control liquid flow rate may be adjusted by the valve sheet.

In some examples, the valve body 2 includes at least one lateral port 22, and the lateral port 22 communicates with the main chamber 21 and the second chamber Q2, respectively. For example, the lateral valve port 22 includes: at least one first lateral valve port in communication with first subchamber Q1 and at least one second lateral valve port in communication with second subchamber Q2 to form at least a portion of third chamber Q3. Embodiments of the present disclosure can continuously control the shock absorber damping forces in the upper and lower regions of the middle chamber.

According to the embodiment of the disclosure, the control inner cavity is formed in the valve body, and the pressure control of the middle cavity is realized through the pressure control of the control inner cavity, so that the damping force of the electric control shock absorber is controlled.

For example, as shown in fig. 1 and 2, the valve control core 3 is substantially cylindrical, and one end of the lateral port 22, which is away from the outer sheath member 43 in the radial direction of the valve control core 3, is provided with an end surface having a curvature matching with that of the valve control core 3, so that the third chamber Q3 is configured to allow the pressure in the third chamber Q3 to be adjusted by opening and closing the lateral port 22 through the outer surface of the valve control core 3 in the radial direction. Therefore, the control inner cavity is simple in structure, convenient to operate and low in cost. For example, one end of the lateral port 22 of the present disclosure, which is far from the outer cover member 43 in the radial direction of the valve control core 3, may be curved or flat, as long as the end matches with the outer surface of the corresponding portion of the valve control core 3, so that the valve control core 3 can close the lateral port 22 or open the lateral port 22, which is not limited by the embodiment of the present disclosure.

For example, as shown in fig. 1, when the valve control core 3 moves up and down, when the radially outer surface of the valve control core 3 blocks the side valve ports 22, the pressure in the second chamber Q2 is maximized, and the damper force is also maximized. For example, when the opening of the outer surface of the valve control core 3 in the radial direction and the side valve port 22 is larger (i.e., the larger the leakage area), the smaller the back pressure of the first hydraulic control valve 61 or the second hydraulic control valve 62 is, the smaller the damper damping force is. Conversely, the greater the damping force of the shock absorber.

For example, in the example of fig. 1 and 2, when the valve control core 3 moves up and down, the pressure in the third chamber Q3 gradually changes during the process that a part of the valve control core 3 (i.e., the control part of the valve control core 3) gradually moves from the lower end of the lateral port 22 to the upper end of the lateral port 22 (i.e., the inner surface of the lateral port 22 is the part to be controlled, which is correspondingly engaged with the control part of the valve control core 3), so that the pressure in the second chamber Q2 can gradually change. Accordingly, the embodiment of the present disclosure allows a control flow (such as control flows B and D hereinafter, which may also be referred to as a branch flow) to pass between the fitting to be controlled and the control portion of the valve control core through the continuous movement of the valve control core, and the magnitude of the passing flow is inversely related to, for example, the pressure of the second chamber Q2.

The embodiment of the present disclosure adjusts the position of the valve control core 3 by using electromagnetic force, thereby achieving the purpose of continuously controlling the pressure of the second chamber Q2, that is, continuously controlling the damping force of the shock absorber.

In some examples, the chamber constituent part 4 includes a to-be-controlled fitting portion located on an inner wall of the main chamber 21 of the valve body 2, and the to-be-controlled fitting portion is used for cooperating with a control portion of the valve control core 3 to control the pressure of the third chamber Q3 and thus the pressure of the second chamber Q2. For example, the fitting to be controlled is located between the first lateral port of the valve body 2 and the second lateral port of the valve body 2 in the axial direction of the valve control core 3.

For example, as shown in fig. 4, the fitting portion to be controlled includes a first inner valve assembly 81, a second inner valve assembly 82, and a first positioning ring 83 located between the first inner valve assembly 81 and the second inner valve assembly 82 in the axial direction of the valve control core 3. The first positioning ring 83 is used to position the inner valve body of the first inner valve assembly 81 and the inner valve body of the second inner valve assembly 82 to form a fluid space. The axial direction of the first inner valve assembly 81 and the axial direction of the second inner valve assembly 82 are parallel to the axial direction of the valve control core 3, respectively.

In some examples, the first and/or second internal valve assemblies 81 and 82, respectively, are one-way valves.

For example, as shown in the example of fig. 4 and 5, the check valve includes an inner valve body 811 (e.g., an inner valve body 801a of the first inner valve assembly 81 and an inner valve body 801b of the second inner valve assembly 82) and an inner valve leaf spring (e.g., an inner valve leaf spring 802a corresponding to the inner valve body 801a and an inner valve leaf spring 802b corresponding to the inner valve body 801 b) provided on a side of the inner valve body 811 close to the first positioning ring 83.

For example, the inner valve body 801a and/or the inner valve body 801b are annular. This is merely exemplary and is not a limitation of the present disclosure.

For example, as shown in fig. 5, the valve control core 3 includes a control portion 31 that cooperates with a portion to be controlled, so that the pressure of the second chamber Q2 is controlled by the movement of the valve control core 3 in the axial direction.

For example, as shown in fig. 4 and 5, third through holes 8a are opened in both sides of the inner valve body 811 in the radial direction of the valve control core 3, respectively, and the inner holes 8b of the first positioning ring 83 are at least partially aligned with the third through holes 8a of the first inner valve assembly 81 and/or the third through holes 8a of the second inner valve assembly 82, respectively, so as to communicate with each other to form at least a part of the third chamber Q3.

In some examples, the outer surface of the first portion of the valve control core 3 (i.e., the control portion 31 described above) is provided with a relief configured to allow the gap formed by the valve control core 3 and the portion of the valve body 3 to be controlled to be adjustable when the valve control core 3 moves in the axial direction, so that the third chamber Q3 is pressure-adjustable when the valve control core 3 moves in the axial direction. Therefore, the adjustable control valve can achieve the aim of continuously controlling the damping force of the shock absorber, and is high in control precision, quick in response and wide in application range.

For example, as shown in fig. 5, the concave-convex shape of the outer surface of the control portion 31 of the valve control core 3 includes at least two stages of concave portions 301, the outer surfaces of the convex portions 302 corresponding to the concave portions 301 are respectively flat surfaces, and the outer diameter of the convex portions 302 is equal to the inner diameter of the inner valve body 811 (e.g., the inner valve body 801a or the inner valve body 801 b).

In some examples, the dimension of the recess 301 in the axial direction of the valve control core 3 is larger than the dimension of the first or second inner valve assemblies 81, 82 in the axial direction of the valve control core 3. For example, the dimension of the recess 301 in the axial direction of the valve core 3 (e.g., the largest dimension of the recess 301 in the axial direction of the valve core 3, i.e., the dimension of the leftmost end of the recess 301 in the axial direction of the valve core 3) is equal to the sum of the dimension of the first positioning ring 83 in the axial direction of the valve core 3 and the dimension of the first or second inner valve assembly 81, 82 in the axial direction of the valve core 3.

So, this disclosure can realize valve control core 3's the outer surface shutoff valve body 2 of radial direction treat accuse cooperation portion for pressure in the second chamber Q2 is the biggest, and the design can make the response of control quicker moreover like this. Of course, this is merely exemplary and not a limitation of the present disclosure, for example, the dimension of the recess 301 in the axial direction of the valve control core 3 may be slightly larger than the sum of the dimension of the first positioning ring 83 in the axial direction of the valve control core 3 and the dimension of the first internal valve assembly 81 or the second internal valve assembly 82 in the axial direction of the valve control core 3, and for example, the dimension of the recess 301 in the axial direction of the valve control core 3 may be slightly smaller than the sum of the dimension of the first positioning ring 83 in the axial direction of the valve control core 3 and the dimension of the first internal valve assembly 81 or the second internal valve assembly 82 in the axial direction of the valve control core 3, which is not limited by the embodiments of the present disclosure.

In some examples, the outer surface of the boss 302 has a dimension in the axial direction of the valve control core 3 that is smaller than the dimension of the first positioning ring 83 in the axial direction of the valve control core 3. In this way, the present disclosure can realize that the branch flow rate D can pass through the gap between the inner valve body 801a and the control portion 31 of the valve body 3 and the branch flow rate B can also pass through the gap between the inner valve body 801B and the control portion 31 of the valve body 3, so that various electronically controlled damper damping forces required in actual use can be obtained.

For example, as shown in fig. 4, the outer surface of the second portion of the valve control core 3 is provided as an inner groove 303 and configured to be engaged with the lateral port 22, so that the gap formed by the valve control core 3 and the portion to be engaged of the valve body 3 communicates with the lateral port 22 for bypass flow communication, so that liquid can flow into or out of the third chamber Q3. For example, a second portion of valve control cartridge 3 is located adjacent a side of inner valve body 811 distal from first retainer ring 83.

In some examples, a second positioning ring 84 is disposed on a side of one of first and second inner valve assemblies 81 and 82 that is distal from electromagnet 1, on a side distal from electromagnet 1.

It should be noted that, for clarity and conciseness, in the embodiment of the adjustable control valve shown in fig. 3-4, differences between the adjustable control valve shown in fig. 3-4 and the adjustable control valve shown in fig. 1-2 are mainly explained, and the same and similar parts can be referred to the embodiment of the adjustable control valve shown in fig. 1-2, which are not described again herein.

It should be further noted that the form of the to-be-controlled matching portion corresponding to the third cavity Q3 of the adjustable control valve according to the embodiment of the present disclosure is not limited to the examples related to fig. 1 to fig. 2 and fig. 3 to fig. 4, and may be any other reasonable form as long as the pressure of the third cavity Q3 can be controlled through the movement of the valve control core, so as to control the pressure of the second cavity Q2, and the embodiment of the present disclosure is not exhaustive and repeated.

At least one embodiment of the present disclosure provides a method for an electronically controlled shock absorber to work at a stretching end, which specifically includes the following steps:

for example, referring to the right side of the adjustable control valve in fig. 3 and 4:

(1) The main path flow rate a of the target liquid passes through the inner through hole of the upper inner passage spring plate 45, the second through hole 4a of the first reciprocating member 41, and then the outer passage of the first reciprocating member 41, so that the main path flow rate a enters the first cavity Q1, and then the main path flow rate a passes through the outer passage of the second reciprocating member 42, and the lower inner passage spring plate 45 is opened, so that the main path flow rate a reaches below the adjustable control valve;

(2) The branch flow B (i.e., the control flow B) passes through the regulating hole of the second regulating valve plate 46 above and the first through hole 6a of the first hydraulic control valve 61, and continues to circulate in the first sub-cavity Q1 of the second chamber Q2, and then enters the inner channel of the inner valve body 811 in the third chamber Q3; then the branch flow B continuously circulates, enters the second sub-chamber Q2 of the second chamber Q2, and then sequentially passes through the first through hole 6a of the second hydraulic control valve 62, the second regulating valve plate 46 (opened), the second through hole 4a of the second reciprocating member 42 and the inner through spring plate 45 below, so that the branch flow B reaches the lower part of the adjustable control valve.

For example, as shown in fig. 3 and 4, when the electronically controlled shock absorber operates at the extension end, when the branch flow B enters the third chamber Q3, the branch flow B at least sequentially passes through the inner hole of the inner valve body 801a and the inner valve spring lamination 802a (opens), so that the branch flow B can enter the lower end of the fitting part to be controlled under a certain condition, and then sequentially passes through the second hydraulic control valve 62, the second regulating valve plate 46, the second reciprocating member 42 and the inner through spring lamination 45 below, so as to reach the lower part of the adjustable control valve.

At least one embodiment of the present invention further provides a method for operating an electronically controlled shock absorber at a compression end, which specifically includes the following steps:

for example, referring to the left side of the adjustable control valve in fig. 3 and 4:

(1) The main path flow rate C of the target liquid passes through the inner through hole of the inner passage spring piece 45 at the lower side, the second through hole 4a of the second reciprocating member 42 and the outer channel of the second reciprocating member 42, so that the main path flow rate C enters the first cavity Q1, then the main path flow rate C passes through the outer channel of the first reciprocating member 41, and the inner passage spring piece 45 at the upper side is opened, so that the main path flow rate C reaches the upper side of the adjustable control valve;

(2) The branch flow D (control flow D) passes through the regulating hole of the second regulating valve sheet 46 below and the first through hole 6a of the second hydraulic control valve 62, continues to circulate in the second sub-cavity Q2 of the second chamber Q2, and then enters the inner passage of the inner valve body 811 in the third chamber Q3; then, the branch flow rate D continues to flow, enters the first sub-chamber Q1 of the second chamber Q2, and then sequentially passes through the first through hole 6a of the first hydraulic control valve 61, the second regulating valve plate 46 (open), the second through hole 4a of the first reciprocating member 41, and the inner through spring plate 45 above, so that the branch flow rate D reaches above the adjustable control valve.

For example, as shown in fig. 3 and 4, when the electronically controlled shock absorber operates at the compression end, when the branch flow D enters the third chamber Q3, the branch flow D at least sequentially passes through the inner hole of the inner valve body 801b and the inner valve spring lamination 802b (opens), so that the branch flow D can enter the upper end of the fitting part to be controlled under a certain condition, and then sequentially passes through the first hydraulic control valve 61, the second regulating valve plate 46, the first reciprocating member 41 and the upper inner through spring lamination 45, thereby reaching the upper part of the adjustable control valve.

Fig. 6A is a schematic diagram of a second state obtained after the valve control core 3 is moved upward by 0.1mm based on the first state shown in fig. 5, in which the first state of fig. 5 is a state in which the stroke of the valve control core 3 is zero, and the second state of fig. 6A is a state in which the stroke of the valve control core 3 is 0.1 mm.

For example, as shown in fig. 5, when the clearance between the upper end of the inner valve body 801a and the control portion 31 of the valve body 3 and the clearance between the upper end of the inner valve body 801b and the control portion 31 of the valve body 3 are both zero, that is, the outer surface of the valve control core 3 in the radial direction blocks the portion to be controlled of the valve body 2, the pressure in the second chamber Q2 is maximized, and therefore the damping force of the shock absorber is maximized.

For example, as shown in fig. 6A, the bypass flow rate D may pass through a gap between the inner valve body 801a and the control portion 31 of the valve body 3 after sequentially passing through the inner hole of the inner valve body 801b and the inner valve leaf spring 802 b. After the branch flow B passes through the inner hole of the inner valve body 801a and the inner valve spring plate 802a in sequence, the gap between the upper end of the inner valve body 801B and the control part 31 of the valve body 3 is zero, so that the branch flow B cannot pass through continuously. Therefore, in the state of fig. 6A, the tensile damping force is large, and the clearance between the inner valve body 801a and the valve body 3 is small because the stroke amount of the valve control core 3 is small, so the compression damping force is still large.

It should be noted that fig. 6A to 6D are only schematic diagrams, and a side of fig. 6A, 6B, 6C, or 6D simultaneously illustrates a branch flow rate B and a branch flow rate D, which are mainly used for convenience of describing a state, a structure, a principle of a scheme, and the like of a to-be-controlled matching portion of the embodiment of the disclosure matching with a valve control core, and this is not a limitation to the embodiment of the disclosure, and does not generate any contradiction with the above description of the disclosure, and is not repeated here.

Fig. 6B is a schematic diagram of a third state obtained after the valve control core 3 is moved upward by 0.6mm based on the second state shown in fig. 6A, the third state of fig. 6B being a state when the stroke of the valve control core 3 is 0.7 mm.

For example, as shown in fig. 6B, the bypass flow rate D may pass through a gap between the inner valve body 801a and the control portion 31 of the valve body 3; since the dimension (e.g., 0.7 mm) of the outer surface of the boss 302 in the axial direction of the valve control core 3 is not smaller than (e.g., equal to) the stroke (e.g., 0.7 mm) of the valve control core 3, the clearance between the upper end of the inner valve body 801B and the control portion 31 of the valve body 3 is zero, and the bypass flow rate B cannot continue to pass therethrough. Therefore, in the state of fig. 6B, the tensile damping force is large, and since the gap between the inner valve body 801a and the control portion 31 of the valve body 3 becomes large, the compressive damping force becomes small as compared with fig. 6A.

Fig. 6C is a schematic diagram of a fourth state obtained after the valve control core 3 is moved upward by another 0.6mm based on the third state shown in fig. 6B, the fourth state of fig. 6C being a state when the stroke of the valve control core 3 is 1.3 mm.

For example, as shown in fig. 6C, the bypass flow rate D may pass through a gap between the inner valve body 801a and the control portion 31 of the valve body 3, and the bypass flow rate B may pass through a gap between the inner valve body 801B and the control portion 31 of the valve body 3. Therefore, in the state of fig. 6C, the tensile damping force becomes small, and the compressive damping force becomes small.

Fig. 6D is a schematic view showing a fifth state obtained after the valve control core 3 is moved upward by another 0.6mm based on the fourth state shown in fig. 6C, the fifth state of fig. 6D being a state where the stroke of the valve control core 3 is 1.9 mm.

For example, as shown in fig. 6D, the bypass flow rate B may also pass through a gap between the inner valve body 801B and the control portion 31 of the valve body 3; since the gap between the lower end of the inner valve body 801a and the control portion 31 of the valve body 3 is zero, the bypass flow D cannot continue to pass therethrough. Therefore, in the state of fig. 6D, the tensile damping force is small and the compressive damping force is large.

Therefore, the adjustable control valve of the above embodiment of the present disclosure can obtain various electrically controlled shock absorber damping forces required in practical use through the smart design.

The following points need to be explained:

(1) The drawings of the embodiments of the disclosure only relate to the structures related to the embodiments of the disclosure, and other structures can refer to common designs.

(2) Without conflict, embodiments of the present disclosure and features of the embodiments may be combined with each other to arrive at new embodiments.

The above description is only a specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and the scope of the present disclosure should be subject to the scope of the claims.

Claims

1. An adjustable control valve for an electronically controlled shock absorber, comprising:

an electromagnet configured at least in part to generate a corresponding electromagnetic force when an electric current is passed therethrough;

a valve body connected with the electromagnet;

a valve control core disposed in a main cavity of the valve body, the valve control core being configured to be movable in an axial direction of the main cavity of the valve body by the electromagnetic force, wherein the axial direction of the valve control core is coaxial with or parallel to the axial direction of the main cavity;

a cavity forming part comprising a first reciprocating member, a second reciprocating member and a jacket assembly,

wherein the first reciprocating member and the second reciprocating member are fitted around the outside of the valve body, the first reciprocating member and the second reciprocating member are disposed opposite to each other in the axial direction of the valve control core,

the outer sleeve component is arranged around the outer side of the valve body, a first cavity is formed in the peripheral space of the outer sleeve component for the main path flow of the target liquid to circulate,

the jacket assembly, the first reciprocating member, the second reciprocating member and the valve body are arranged together to form a second cavity,

the valve body and the valve control core are matched to form a third cavity, the third cavity is configured to achieve pressure adjustability according to axial movement of the valve control core, and the third cavity is communicated with the second cavity to enable branch flow of the target liquid to flow.

2. The adjustable control valve of claim 1,

the jacket assembly comprises a first jacket corresponding to the first shuttle and a second jacket corresponding to the second shuttle;

the chamber constituent further comprises a separator seat configured to separate the second chamber into a first sub-chamber and a second sub-chamber;

the first sub-cavity is formed by the first outer sleeve, the first reciprocating motion piece, the valve body and the separating seat in an enclosing mode, and the second sub-cavity is formed by the second outer sleeve, the second reciprocating motion piece, the valve body and the separating seat in an enclosing mode.

3. The adjustable control valve of claim 2, further comprising a first hydraulic control valve and a second hydraulic control valve, wherein,

the first hydraulic control valve is connected to one end, close to the second reciprocating member, of the first reciprocating member in the axial direction of the valve control core, the first hydraulic control valve is sleeved on the outer side of the valve body,

the second hydraulic control valve is connected to one end, close to the first reciprocating member, of the second reciprocating member in the axial direction of the valve control core, and the second hydraulic control valve is sleeved on the outer side of the valve body.

4. The adjustable control valve of claim 3,

each of the first and second hydraulic control valves is provided with first through holes on both sides in a radial direction of the valve control core, respectively, to form at least a part of the second chamber;

each of the first and second shuttles is provided with second through holes on both sides in a radial direction of the valve control core, respectively;

an axial direction of the first through hole and an axial direction of the second through hole are respectively parallel to an axial direction of the valve control core, and the first through hole and the corresponding second through hole are provided so as to be at least partially aligned so as to communicate with each other.

5. The adjustable control valve of claim 4,

the second through hole of the first reciprocating member and the second through hole of the second reciprocating member are respectively communicated with the first cavity so as to allow the main path flow flowing in from the second through hole to pass through.

6. The adjustable control valve of claim 3, further comprising: a first counterbalance spring located within the first sub-chamber and a second counterbalance spring located within the second sub-chamber, wherein,

an axial direction of the second balance spring and an axial direction of the first balance spring are respectively parallel to an axial direction of the valve control core,

the first balance spring is sleeved on the outer side of the valve body and is arranged between the first hydraulic control valve and the separating seat,

the second balance spring is sleeved on the outer side of the valve body and arranged between the second hydraulic control valve and the separating seat.

7. The adjustable control valve of claim 4, further comprising an internal passage spring plate, wherein the internal passage spring plates are provided respectively at ends of the first and second reciprocating members that are distant from each other in an axial direction of the valve control core,

the inner through spring plate is enclosed outside the valve body, the inner through spring plate is provided with an inner through hole, and the inner through hole of the inner through spring plate and the corresponding second through hole are arranged to be at least partially aligned so as to communicate with each other.

8. The adjustable control valve of claim 3, further comprising:

a first valve plate and/or a second regulator plate provided between the first reciprocating member and the first hydraulic control valve,

and/or a first valve plate and/or a second adjusting valve plate are/is arranged between the second reciprocating member and the second hydraulic control valve.

9. The adjustable control valve of claim 2,

the valve body comprises at least one lateral valve port which is respectively communicated with the main cavity and the second cavity,

the at least one lateral valve port comprises: at least one first lateral valve port in communication with the first sub-chamber, and at least one second lateral valve port in communication with the second sub-chamber, to form at least a portion of the third chamber.

10. The adjustable control valve of claim 9,

the valve control core is cylindrical, and one end of the lateral valve port, which is far away from the outer sleeve component in the radial direction of the valve control core, is provided with an end face with a curvature matched with that of the valve control core, so that the third cavity is configured to realize pressure adjustment through the outer surface of the valve control core in the radial direction to the opening and closing of the lateral valve port.

11. The adjustable control valve of claim 9,

the cavity forming part comprises a part to be controlled and matched, which is positioned on the inner wall of the main cavity of the valve body, and the part to be controlled and matched is positioned between the first lateral valve port and the second lateral valve port in the axial direction of the valve control core;

the part to be controlled comprises a first inner valve component, a second inner valve component and a first positioning ring which is positioned between the first inner valve component and the second inner valve component in the axial direction of the valve control core,

an axial direction of the first inner valve assembly and an axial direction of the second inner valve assembly are parallel to an axial direction of the valve control core, respectively.

12. The adjustable control valve of claim 11,

the first internal valve assembly and/or the second internal valve assembly are/is a one-way valve,

the one-way valve comprises an inner valve body and an inner valve spring sheet arranged on one side of the inner valve body close to the first positioning ring,

the inner valve body is annular, third through holes are respectively formed in the inner valve body along two sides of the valve control core in the radial direction, and the inner hole of the first positioning ring is at least partially aligned with the third through hole of the first inner valve assembly and/or the third through hole of the second inner valve assembly to be communicated with each other so as to form at least one part of the third cavity.

13. The adjustable control valve of claim 12,

the outer surface of the first part of the valve control core is arranged to be concave-convex, and the concave-convex shape is configured to be adjustable in a gap formed between the valve control core and the part to be controlled and matched of the valve body when the valve control core moves along the axial direction, so that the pressure of the third cavity is adjustable when the valve control core moves along the axial direction.

14. The adjustable control valve of claim 13,

the concave-convex shape of the outer surface of the first part of the valve control core comprises at least two sections of depressions, the outer surfaces of bosses corresponding to the at least two sections of depressions are planes respectively, and the outer diameter of each boss is equal to the inner diameter of the inner valve body;

a dimension of the recess in the axial direction of the valve control core is equal to a sum of a dimension of the first positioning ring in the axial direction of the valve control core and a dimension of the first or second inner valve assembly in the axial direction of the valve control core;

the outer surface of the boss has a dimension in the axial direction of the valve control core that is smaller than a dimension of the first positioning ring in the axial direction of the valve control core.

15. The adjustable control valve of claim 13,

the outer surface of the second part of the valve control core is provided with an inner groove and is configured to be matched with the lateral valve port, so that the gap formed by the valve control core and the part to be controlled and matched of the valve body is communicated with the lateral valve port to allow the branch flow to flow.

16. The adjustable control valve of claim 11,

and a second positioning ring is arranged on one side, away from the electromagnet, of the first inner valve assembly and the second inner valve assembly.

17. The adjustable control valve of any one of claims 1 to 16,

the cavity forming part and the valve body are respectively arranged in axial symmetry with respect to the valve control core.

18. An electrically controlled shock absorber, comprising at least one adjustable control valve according to any one of claims 1 to 17,

the adjustable control valve is externally arranged, wherein the electric control shock absorber further comprises a control valve pipe, and at least one part of the electromagnet of the adjustable control valve is fixed with the control valve pipe.

19. An electrically controlled shock absorber, comprising at least one adjustable control valve according to any one of claims 1 to 17,

the adjustable control valve is built-in, wherein the electric control shock absorber further comprises a hollow connecting rod, and at least one part of the electromagnet of the adjustable control valve is connected with the hollow connecting rod.