CN117261518A - Electric control type active suspension system - Google Patents
Electric control type active suspension system Download PDFInfo
- Publication number
- CN117261518A CN117261518A CN202311482476.9A CN202311482476A CN117261518A CN 117261518 A CN117261518 A CN 117261518A CN 202311482476 A CN202311482476 A CN 202311482476A CN 117261518 A CN117261518 A CN 117261518A
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- Prior art keywords
- shell
- sleeve
- active suspension
- suspension system
- spring tray
- Prior art date
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- 239000000725 suspension Substances 0.000 title claims abstract description 37
- 238000013016 damping Methods 0.000 claims abstract description 13
- 239000000428 dust Substances 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/0152—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
- B60G17/0157—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit non-fluid unit, e.g. electric motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/005—Suspension locking arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/40—Type of actuator
- B60G2202/42—Electric actuator
- B60G2202/422—Linear motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/46—Means for locking the suspension
- B60G2204/4604—Means for locking the suspension mechanically, e.g. using a hook as anticreep mechanism
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/30—Height or ground clearance
Abstract
The invention discloses an electric control type active suspension system, which comprises: the outer side of one end of the linear propulsion unit is provided with a spring tray, and the spring tray is propped against one end of the damping spring; the linear propulsion unit comprises a shell, a stator and a rotor which are arranged in the shell, and a screw rod connected with the spring tray, wherein a thread roller sleeve is arranged on the screw rod, the thread roller sleeve is matched with a nut sleeve, and the nut sleeve is fixedly connected with the rotor; the braking unit is arranged between the shell and the nut sleeve and comprises a friction plate connected with the nut sleeve or the rotor and a brake stator arranged on the shell, and the nut sleeve, the rotor, the thread roller sleeve, the stator and the screw rod are coaxially arranged. The invention can solve the problems of slow response speed and inaccurate adjustment of the height of the vehicle body of the existing hydraulic active suspension.
Description
Technical Field
The invention relates to the technical field of automotive suspension systems, in particular to an electric control type active suspension system.
Background
In recent years, the riding comfort of vehicles is always paid attention to by the people, and in the past, hydraulic active suspensions and air suspensions are adopted to ensure the stability of the vehicle body and improve the riding comfort when the vehicle body runs on different road conditions; meanwhile, under different driving road conditions, such as braking, accelerating and steering processes, the height of the whole vehicle suspension is also indirectly related to the safety of a driver.
The existing hydraulic active suspension and air suspension are complex in structure, large in occupied space, and for the hydraulic active suspension, the height of the vehicle body under various road conditions cannot be accurately adjusted, the response speed of the hydraulic active suspension is slow, the vehicle body cannot be quickly adjusted to be stabilized under complex road conditions, and the active suspensions with different structures are required to be independently designed according to different vehicle types, so that the universality is low.
Disclosure of Invention
The invention provides an electric control type active suspension system which can solve the problems that the existing hydraulic active suspension is slow in response speed and inaccurate in height adjustment of a vehicle body.
In order to achieve the above purpose, the present invention provides the following technical solutions: an electronically controlled active suspension system comprising: the linear propulsion unit is provided with a spring tray at the outer side of one end of the linear propulsion unit, and the spring tray is propped against one end of the damping spring;
the linear propulsion unit comprises a shell, a stator arranged in the shell and a rotor arranged on the radial inner side of the stator, wherein a screw rod with one end connected with a spring tray is coaxially arranged in the middle of the shell, a threaded roller sleeve is coaxially arranged on the screw rod, a matched nut sleeve is coaxially arranged on the outer side of the threaded roller sleeve, the outer part of the nut sleeve is fixedly connected with the rotor, and the threaded roller sleeve axially moves along a spiral roller path on the inner side wall of the nut sleeve when the nut sleeve is driven to rotate by the rotor so as to push the screw rod and the spring tray to axially move;
the brake unit is arranged between the shell and the nut sleeve and comprises a friction plate connected with the nut sleeve or the rotor and a brake stator arranged on the shell, the nut sleeve, the rotor, the thread roller sleeve, the stator and the screw rod are coaxially arranged, so that the linear propulsion unit can realize axial movement of the screw rod in an electric control mode, the position of the spring tray is adjusted, accurate adjustment of a vehicle body is realized, the whole linear propulsion unit is small in size and convenient to install, the brake unit is arranged, and can generate instantaneous braking force when the brake unit can be suspended and adjusted in place and needs to be locked, the rotor or the nut sleeve is locked, the locking moment is large, and the reliability is high.
Further, the nut sleeve is connected with the shell through the bearing assembly, the bearing assembly comprises a first bearing close to the spring tray and a second bearing close to the brake unit, one axial side of the friction plate is propped against the second bearing, and the nut sleeve can bear relatively large radial force through the arrangement of the first bearing and the second bearing, so that stable rotation of the nut sleeve is ensured.
Further, install sensor subassembly between casing and the screw cover, sensor subassembly include activity response part and with the corresponding displacement sensor of activity response part, activity response part install on the screw cover, sensor subassembly can monitor the rotation of screw cover to turn into the axial displacement control of lead screw, make the lead screw more accurate to the position adjustment of spring tray.
Further, the movable induction component comprises a positioning ring sleeved on the outer side of the nut sleeve and magnetic steel uniformly arranged along the circumferential direction of the positioning ring, and the magnetic steel can accurately sense the rotation number and the rotation angle of the nut sleeve through mutual induction of the magnetic steel and a displacement sensor, and the occupied space is smaller.
Further, the shell comprises a shell, an end cover arranged at one end of the shell close to the spring tray and a tail shell arranged at the other end of the shell, the brake unit is arranged in the tail shell, and the end cover and the tail shell are beneficial to the installation of various components in the shell.
Further, one end axial of lead screw be connected with the enhancement axle, the tip of enhancement axle pass from the spring tray and link to each other with coupling nut, the enhancement axle can improve the intensity of lead screw, improve the joint strength with the spring tray.
Furthermore, in the braking unit, when the brake stator is electrified, the brake stator does not have a magnetic force for attracting the friction plate, a gap is reserved between the brake stator and the friction plate, and when the brake stator is powered off, the brake stator generates magnetic force for attracting the friction plate, so that the screw rod can not axially move under the condition of power off or emergency power off of an automobile, the locking is realized, and the height of the automobile body is unchanged.
Further, the rubber pad is installed on the radial outer side of the spring tray, the end part of the damping spring is propped against the rubber pad, the rubber pad can increase friction force between the damping spring and the spring tray, and abrasion of the spring tray can be reduced.
Further, the radial inboard of spring tray and casing between install the tray direction sliding sleeve, the outside of casing be provided with the telescopic dust cover of axial, the one end of dust cover link to each other with the spring tray, the other end links to each other with the casing with the area cover that the tray direction sliding sleeve removed along the casing, the tray direction sliding sleeve has the effect of self-lubricating, can reduce the frictional force between spring tray and the casing, the dust cover can prevent that outside debris from entering into the clearance between spring tray and the casing in influencing the removal of spring tray.
Further, sensor subassembly and stator on be connected with the pencil that passes perforation on the casing and extend to outside, the outside of pencil be provided with the pencil rubber sleeve of installing on the perforation, the outside of casing install the fixed clamp plate of pushing down pencil rubber sleeve, fixed clamp plate and pencil rubber sleeve can seal the installation of pencil, sealed effectual.
Compared with the prior art, the invention has the beneficial effects that:
the device has the advantages that the device is reasonable in structure, the screw sleeve, the rotor, the thread roller sleeve, the stator and the screw rod are coaxially arranged, the linear propulsion unit can realize axial movement of the screw rod in an electric control mode, the position of the spring tray is adjusted, accurate adjustment of a vehicle body is realized, the whole linear propulsion unit is small in size and convenient to install, the sensor assembly and the brake unit are arranged, the sensor assembly can accurately control the position of the screw rod, the brake unit can generate instantaneous braking force when the suspension is adjusted to be in place and needs to be locked, the rotor or the screw sleeve is locked, the locking moment is large, and the reliability is high. The DC brushless motor formed by the rotor and the stator has fast response and good controllability, can adjust motor data according to data of a host factory and different vehicle types, has good universality, and can bear vehicles with various vehicle types and various loads, thereby solving the problems of slower response speed and inaccurate height adjustment of the existing hydraulic active suspension.
Drawings
FIG. 1 is a front view block diagram of the present invention;
fig. 2 is a perspective view of a linear propulsion unit according to the present invention;
FIG. 3 is a front cross-sectional view of the linear propulsion unit of the present invention;
FIG. 4 is an enlarged block diagram of the portion A of FIG. 3;
FIG. 5 is an enlarged block diagram of the portion B of FIG. 3;
fig. 6 is an enlarged structural view of fig. 3 at C.
Reference numerals:
1. the device comprises a spring tray, 11, a tray guiding sliding sleeve, 12, a wire harness rubber sleeve, 13, a wire harness, 14, a second bearing, 15, a tail shell, 16, a dust cover, 17, a rotor, 18, a screw sleeve, 2, a damping spring, 21, a fixed pressing plate, 22, a brake stator, 23, a friction plate, 24, a displacement sensor, 25, a movable sensing part, 26, a screw rod, 27, a thread rolling sleeve, 28, a rubber pad, 3, a linear propulsion unit, 4, a braking unit, 5, a reinforcing shaft, 6, a connecting nut, 7, an end cover, 8, a first bearing, 9, a shell, 10 and a stator.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The invention aims to solve the problems that the response speed of the existing hydraulic active suspension is relatively slow and the height adjustment of a vehicle body is inaccurate. As shown in fig. 1-6, the following technical scheme is provided: an electronically controlled active suspension system comprising: the linear propulsion unit 3, a spring tray 1 is arranged outside one end of the linear propulsion unit 3, and the spring tray 1 is propped against one end of the damping spring 2; the outer diameter of the spring tray 1 is larger than the outer diameter of the linear propulsion unit 3, so that the linear propulsion unit 3 can conduct guiding action on movement of the spring tray 1, meanwhile, the linear propulsion unit 3 is used for driving the spring tray 1 to conduct axial movement, the height of a vehicle body can be adjusted through movement of the spring tray 1, the adjusting process can be completed in a short time, for example, a suspension system of two wheels can be adjusted when a vehicle turns, vehicle sound on the side is lifted, stability of the vehicle body is improved, and accurate adjustment is difficult to achieve in a short time if a traditional hydraulic active suspension system is adopted.
In this embodiment, in order to realize accurate adjustment of the position of the linear propulsion unit 3 on the spring tray 1, the linear propulsion unit 3 includes a housing 9, a stator 10 disposed inside the housing 9, and a rotor 17 disposed inside the stator 10 in a radial direction, a lead screw 26 having one end connected to the spring tray 1 is coaxially disposed in the middle of the housing 9, a threaded roller sleeve 27 is coaxially mounted on the lead screw 26, a matched nut sleeve 18 is coaxially disposed on the outer side of the threaded roller sleeve 27, the outer part of the nut sleeve 18 is fixedly connected with the rotor 17, the threaded roller sleeve 27 axially moves along a spiral raceway on the inner side wall of the nut sleeve 18 when the nut sleeve 18 is driven to rotate by the rotor 17, so as to push the lead screw 26 and the spring tray 1 to axially move, the direct current brushless motor composed of the rotor 17 and the stator 10 has high controllability, and can adjust motor data according to a host factory and different data, and can bear vehicles with various types and loads, although the direct current comparison composed of the rotor 17 and the stator 10 is coaxially disposed with the rotor 17 and the stator 10, the direct current brushless motor has no need to be applied to the design of the drive the lead screw 26 and the spring tray 26 to realize the axial damping system by applying the axial damping force to the axial damping system;
for the safety of the suspension system, the embodiment further comprises a brake unit 4, the brake unit is arranged between the shell 9 and the nut sleeve 18, the brake unit comprises a friction plate 23 connected with the nut sleeve 18 or the rotor 17 and a brake stator 22 arranged on the shell 9, the nut sleeve 18, the rotor 17, the thread roller sleeve 27, the stator 10 and the screw rod 26 are coaxially arranged, the linear propulsion unit 3 can realize axial movement of the screw rod 26 in an electric control mode, the position of the spring tray 1 is adjusted, accurate adjustment of a vehicle body is realized, the whole linear propulsion unit 3 is small in size and convenient to install, the brake unit 4 is arranged, the brake unit 4 can generate instant braking force when the suspension is adjusted to be in place and needs to be locked, the rotor or the nut sleeve is locked, the locking moment is large, and the reliability is high.
Specifically, the position of the brake unit 4 may be mounted at any position between the housing 9 and the nut sleeve 18, which is based on the convenience of mounting, and may be mounted at one end of the housing 9 and the nut sleeve 18 away from the spring tray 1, so as to facilitate the mounting of the brake unit 4.
In some embodiments, the braking unit 4 adopts an electromagnetic brake, the braking response of the electromagnetic brake is relatively fast, the braking torque is large, dust cannot be generated in the braking process, two types of electromagnetic brakes are mainly adopted, one type of electromagnetic brake is powered on braking, the other type of electromagnetic brake is powered off braking, in the embodiment, powered off braking can be adopted, specifically, when the brake stator 22 is powered on, the brake stator 22 does not have a magnetic attraction friction plate 23, a gap is reserved between the brake stator 22 and the friction plate 23, when the brake stator 22 is powered off, the brake stator 22 generates magnetic force to attract the friction plate 23, so that a screw rod cannot axially move under the condition of power off or emergency power off of an automobile, locking is realized, and the height of the automobile body is unchanged.
In order to make the nut sleeve 18 stably rotate in the shell 9, as shown in fig. 3, the nut sleeve 18 is connected with the shell 9 through a bearing assembly, the bearing assembly comprises a first bearing 8 close to the spring tray 1 and a second bearing 14 close to the brake unit 4, one axial side of the friction plate 23 is abutted against the second bearing 14, the nut sleeve can bear relatively large radial force by arranging the first bearing 8 and the second bearing 14, the stable rotation of the nut sleeve is ensured, and in the embodiment, axial limiting can be carried out on the first bearing 8 and the second bearing 14 according to the requirement, for example, a butterfly spring or a wave spring is axially arranged between the first bearing 8 or the second bearing 14 and the shell 9, so that the assembly axial tolerance can be eliminated.
In order to realize the accurate control of the master controller of the automobile on the active suspension system, as shown in fig. 3 and 5, a sensor assembly is installed between the shell 9 and the screw sleeve 18, the sensor assembly comprises a movable sensing part 25 and a displacement sensor 24 corresponding to the movable sensing part 25, the movable sensing part 25 is installed on the screw sleeve 18, and the sensor assembly can monitor the rotation of the screw sleeve 18, so that the rotation of the screw sleeve 18 is converted into the axial movement control of the screw rod 26, and the position adjustment of the screw rod 26 on the spring tray 1 is more accurate. As shown in fig. 5, the movable sensing component 25 includes a positioning ring sleeved on the outer side of the nut sleeve 18 and magnetic steel uniformly arranged along the circumferential direction of the positioning ring, the magnetic steel can accurately sense the rotation number and rotation angle of the nut sleeve 18 through mutual sensing with the displacement sensor 24, and the occupied space is relatively small, and the sensor component can be mounted on one axial side of the stator 10, so that the space between the housing 9 and the nut sleeve 18 is effectively utilized.
In some embodiments, to facilitate assembly of the housing 9, the housing 9 includes a housing, an end cover 7 disposed at one end of the housing near the spring tray 1, and a tail housing 15 disposed at the other end of the housing, the brake unit 4 is mounted in the tail housing 15, the end cover 7 and the tail housing 15 facilitate installation of various components inside the housing, the tail housing 15 may be assembled with the brake unit 4 first and then mounted on the housing, and the mounting sequence of the end cover 7 and the tail housing 15 may be adjusted as needed.
In some embodiments, as shown in fig. 3, one end of the screw rod 26 is axially connected with a reinforcing shaft 5, the end of the reinforcing shaft 5 passes through the spring tray 1 and is connected with the connecting nut 6, the reinforcing shaft 5 can improve the strength of the screw rod 26 and the connection strength with the spring tray 1, the reinforcing shaft 5 and the screw rod 26 are connected through threads, and the screw rod 26 can be replaced according to requirements, so that the spring tray 1 can need different initial positions.
In some embodiments, as shown in fig. 3, a rubber pad 28 is installed on the radial outer side of the spring tray 1, the end portion of the damping spring 2 abuts against the rubber pad 28, and the rubber pad 28 can increase the friction force between the damping spring 2 and the spring tray 1 and also can reduce the abrasion of the spring tray 1.
Meanwhile, as shown in fig. 3, a tray guiding sliding sleeve 11 is installed between the radial inner side of the spring tray 1 and the shell 9, an axially telescopic dust cover 16 is arranged on the outer side of the shell 9, one end of the dust cover 16 is connected with the spring tray 1, the other end of the dust cover 16 is connected with the shell 9 to cover the area of the tray guiding sliding sleeve 11 moving along the shell 9, the tray guiding sliding sleeve 11 has a self-lubricating effect, friction force between the spring tray 1 and the shell 9 can be reduced, foreign matters outside can be prevented from entering a gap between the spring tray 1 and the shell 9 to influence movement of the spring tray 1, the dust cover 16 can be of a folded corrugated structure, and the dust cover has elasticity and a good protection effect.
The sensor assembly and the stator 10 on be connected with the pencil 13 that passes perforation on the casing 9 and extend to outside, the outside of pencil 13 be provided with the pencil rubber sleeve 12 of installing on the perforation, the outside of casing 9 install the fixed clamp plate 21 of pushing down pencil rubber sleeve 12, fixed clamp plate 21 and pencil rubber sleeve 12 can seal the installation of pencil 13, sealed effectual, perforation on the casing 9 can be oval, many pencil 13 pass from oval perforation, pencil rubber sleeve 12 also is oval structure, with many pencil 13 contact, will make pencil rubber sleeve 12 take place deformation when fixed clamp plate 21 presses the upside of pencil rubber sleeve 12 through the fastener, its inner circle can shrink and wrap up many pencil 13, can realize sealing like this, prevent outside debris from entering inside casing 9.
Therefore, the scheme of the linear brushless motor full-active suspension system in the embodiment has the characteristics of quick response, small volume and low noise, and can accurately adjust the height of the vehicle body under various road conditions and improve riding comfort. Meanwhile, the motor and the module parameters are suitable for vehicles with different vehicle conditions and different costs, and various requirements of each host factory can be met.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear are used in the embodiments of the present invention) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
Claims (10)
1. An electronically controlled active suspension system comprising:
the device comprises a linear propulsion unit (3), wherein a spring tray (1) is arranged at the outer side of one end of the linear propulsion unit (3), and the spring tray (1) is propped against one end of a damping spring (2);
the linear propulsion unit (3) comprises a shell (9), a stator (10) arranged in the shell (9) and a rotor (17) arranged on the radial inner side of the stator (10), a screw rod (26) with one end connected with the spring tray (1) is coaxially arranged in the middle of the shell (9), a threaded roller sleeve (27) is coaxially arranged on the screw rod (26), a matched nut sleeve (18) is coaxially arranged on the outer side of the threaded roller sleeve (27), the outer part of the nut sleeve (18) is fixedly connected with the rotor (17), and the threaded roller sleeve (27) axially moves along a spiral raceway on the inner side wall of the nut sleeve (18) when the nut sleeve (18) is driven to rotate by the rotor (17) so as to push the screw rod (26) and the spring tray (1) to axially move;
and the braking unit (4) is arranged between the shell (9) and the screw sleeve (18) and comprises a friction plate (23) connected with the screw sleeve (18) or the rotor (17) and a brake stator (22) arranged on the shell (9).
2. The electrically controlled active suspension system of claim 1 wherein: the nut sleeve (18) is connected with the shell (9) through a bearing assembly, the bearing assembly comprises a first bearing (8) close to the spring tray (1) and a second bearing (14) close to the brake unit (4), and one axial side of the friction plate (23) is abutted against the second bearing (14).
3. The electrically controlled active suspension system of claim 1 wherein: a sensor assembly is arranged between the shell (9) and the nut sleeve (18), the sensor assembly comprises a movable sensing part (25) and a displacement sensor (24) corresponding to the movable sensing part (25), and the movable sensing part (25) is arranged on the nut sleeve (18).
4. The electrically controlled active suspension system of claim 3 wherein: the movable induction component (25) comprises a positioning ring sleeved on the outer side of the nut sleeve (18) and magnetic steel uniformly arranged along the circumferential direction of the positioning ring.
5. The electrically controlled active suspension system of claim 1 wherein: the shell (9) comprises a shell, an end cover (7) arranged at one end of the shell close to the spring tray (1) and a tail shell (15) arranged at the other end of the shell, and the brake unit (4) is arranged in the tail shell (15).
6. The electrically controlled active suspension system of claim 1 wherein: one end of the screw rod (26) is axially connected with a reinforcing shaft (5), and the end part of the reinforcing shaft (5) penetrates through the spring tray (1) to be connected with the connecting nut (6).
7. The electrically controlled active suspension system of claim 1 wherein: in the braking unit (4), when the brake stator (22) is electrified, the brake stator (22) has no magnetic force to attract the friction plate (23), a gap is reserved between the brake stator (22) and the friction plate (23), and when the brake stator (22) is powered off, the brake stator (22) generates magnetic force to attract the friction plate (23).
8. The electrically controlled active suspension system of claim 1 wherein: a rubber pad (28) is arranged on the radial outer side of the spring tray (1), and the end part of the damping spring (2) is propped against the rubber pad (28).
9. The electrically controlled active suspension system of claim 1 wherein: the spring tray (1) radial inside and casing (9) between install tray direction sliding sleeve (11), the outside of casing (9) be provided with but axial telescopic dust cover (16), one end of dust cover (16) link to each other with spring tray (1), the other end links to each other with casing (9) in order to cover tray direction sliding sleeve (11) along the region of casing (9) removal.
10. The electrically controlled active suspension system of claim 3 wherein: the sensor assembly and the stator (10) are connected with a wire harness (13) which penetrates through a perforation on the shell (9) and extends to the outside, a wire harness rubber sleeve (12) arranged on the perforation is arranged on the outer side of the wire harness (13), and a fixed pressing plate (21) for pressing the wire harness rubber sleeve (12) is arranged on the outer side of the shell (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311482476.9A CN117261518B (en) | 2023-11-09 | 2023-11-09 | Electric control type active suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311482476.9A CN117261518B (en) | 2023-11-09 | 2023-11-09 | Electric control type active suspension system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117261518A true CN117261518A (en) | 2023-12-22 |
| CN117261518B CN117261518B (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311482476.9A Active CN117261518B (en) | 2023-11-09 | 2023-11-09 | Electric control type active suspension system |
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| CN (1) | CN117261518B (en) |
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| CN109906157A (en) * | 2016-10-27 | 2019-06-18 | 舍弗勒技术股份两合公司 | Electromechanical chassis actuator |
| KR20190104814A (en) * | 2018-03-02 | 2019-09-11 | 현대자동차주식회사 | Apparatus of adjusting vehicle height for macpherson strut suspension |
| DE102018130418A1 (en) * | 2018-08-29 | 2020-03-05 | Hyundai Mobis Co., Ltd. | Vehicle height adjustment device for a suspension |
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- 2023-11-09 CN CN202311482476.9A patent/CN117261518B/en active Active
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| CN2598237Y (en) * | 2003-01-10 | 2004-01-07 | 浙江新益气动工业有限公司 | Electric linear drive |
| JP2007176325A (en) * | 2005-12-28 | 2007-07-12 | Equos Research Co Ltd | Suspension device of vehicle |
| CN103199649A (en) * | 2013-02-18 | 2013-07-10 | 成都瑞迪机械实业有限公司 | Mechanical and electrical integration linear driving device |
| CN107757285A (en) * | 2016-08-22 | 2018-03-06 | 比亚迪股份有限公司 | The suspension system of automobile and with its automobile, control method |
| CN107757288A (en) * | 2016-08-22 | 2018-03-06 | 比亚迪股份有限公司 | The suspension system of automobile and with its automobile, control method |
| CN109906157A (en) * | 2016-10-27 | 2019-06-18 | 舍弗勒技术股份两合公司 | Electromechanical chassis actuator |
| KR20190104814A (en) * | 2018-03-02 | 2019-09-11 | 현대자동차주식회사 | Apparatus of adjusting vehicle height for macpherson strut suspension |
| DE102018130418A1 (en) * | 2018-08-29 | 2020-03-05 | Hyundai Mobis Co., Ltd. | Vehicle height adjustment device for a suspension |
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| CN117261518B (en) | 2024-03-15 |
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