CN112848831B - Suspension device for vehicle and control method thereof - Google Patents
Suspension device for vehicle and control method thereof Download PDFInfo
- Publication number
- CN112848831B CN112848831B CN201911183192.3A CN201911183192A CN112848831B CN 112848831 B CN112848831 B CN 112848831B CN 201911183192 A CN201911183192 A CN 201911183192A CN 112848831 B CN112848831 B CN 112848831B
- Authority
- CN
- China
- Prior art keywords
- electromagnetic
- suspension
- magnetic
- vehicle
- set value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
- B60G17/019—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 type of sensor or the arrangement thereof
- B60G17/01908—Acceleration or inclination sensors
-
- 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
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/021—Spring characteristics, e.g. mechanical springs and mechanical adjusting means the mechanical spring being a coil spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/20—Spring action or springs
- B60G2500/22—Spring constant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/20—Stationary vehicle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Devices Of Dampers And Springs (AREA)
- Body Structure For Vehicles (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a suspension device of a vehicle and a control method thereof, the vehicle comprises an auxiliary frame, a vehicle body and a suspension, the suspension device of the vehicle comprises: the two ends of the elastic part are respectively connected with the auxiliary frame/the vehicle body and the suspension; a magnetic member provided on one of the subframe/body and the suspension or connected to one end of the elastic member; and the electromagnetic part is arranged on the other one of the auxiliary frame/the vehicle body and the suspension or is connected with the other end of the elastic part, and the magnetic pole of the magnetic part is opposite to the magnetic pole of the electromagnetic part in the movement direction of the elastic part. From this, through installation magnetic part and electromagnetism piece, can change suspension's rigidity through the mode that changes the power size and the direction between electromagnetism piece and the magnetic part to can reach the purpose that changes the offset frequency, and then can promote the travelling comfort that the passenger took the vehicle, and the suspension that so sets up simple structure, it is with low costs.
Description
Technical Field
The present invention relates to the field of vehicle technologies, and in particular, to a suspension apparatus for a vehicle and a control method thereof.
Background
In the related technology, when the load of a vehicle changes, the common suspension can not change the rigidity of a spiral spring and other parameters related to offset frequency calculation, so that certain influence is exerted on the riding comfort; although the air spring can change the rigidity of the spring and further change the offset frequency of the whole vehicle, the cost is high.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a suspension apparatus for a vehicle, which changes the stiffness of the suspension apparatus by electromagnetic force to change the vehicle offset frequency, so as not to affect the riding comfort, but to reduce the investment and cost.
The invention further provides a control method of the suspension device of the vehicle.
According to the suspension apparatus of the present invention, the vehicle includes the subframe, the vehicle body, and the suspension, the suspension apparatus includes: the two ends of the elastic part are respectively connected with the auxiliary frame/the vehicle body and the suspension; a magnetic member provided on one of the sub-frame/vehicle body and the suspension or connected to one end of the elastic member; and the electromagnetic part is arranged on the other one of the auxiliary frame/the vehicle body and the suspension or is connected with the other end of the elastic part, and the magnetic pole of the magnetic part is opposite to the magnetic pole of the electromagnetic part in the moving direction of the elastic part in an orientation mode.
According to the suspension device, the magnetic part and the electromagnetic part are arranged, the size and the direction of the magnetic field intensity can be changed by changing the size and the direction of the current in the electromagnetic part, so that the rigidity of the suspension device is changed, the purpose of changing the offset frequency can be achieved, the riding comfort is not influenced, and the cost can be reduced.
In some examples of the invention, the magnetic member and the electromagnetic member are both disposed within the elastic member.
In some examples of the invention, the elastic member is a coil spring.
In some examples of the invention, the axis of the electromagnetic member is directly opposite to the axis of the magnetic member.
In some examples of the present invention, a heat sink is disposed around the magnetic member.
In some examples of the invention, an electromagnetic shield is disposed around the periphery of the electromagnetic member.
In some examples of the invention, the subframe/body is provided with an upper mounting seat; a lower mounting seat is arranged on the suspension, the upper mounting seat and the lower mounting seat are arranged oppositely up and down, one of the magnetic part and the electromagnetic part is mounted on the upper mounting seat, and the other one of the magnetic part and the electromagnetic part is mounted on the lower mounting seat; and/or two ends of the elastic piece are respectively arranged on the upper mounting seat and the lower mounting seat.
In some examples of the present invention, an upper mount is provided on the subframe/body or a lower mount is provided on the suspension, and one of the magnetic member and the electromagnetic member is mounted on the upper mount or the lower mount.
In some examples of the present invention, the suspension apparatus further includes: go up acceleration sensor, lower acceleration sensor, controller and power, it is used for detecting to go up acceleration sensor the vertical acceleration of sub vehicle frame/automobile body, acceleration sensor is used for detecting down the vertical acceleration of the wheel of vehicle, go up acceleration sensor with acceleration sensor all with the controller electricity is connected down, the controller still with the power electricity is connected, the power with the electromagnetism piece electricity is connected.
According to the control method of the suspension apparatus of the vehicle of the present invention, when the vertical acceleration of the subframe/vehicle body is greater than the first set value, the electromagnetic member is controlled to magnetically attract the magnetic member; when the vertical acceleration of the auxiliary frame/the vehicle body is smaller than a second set value, controlling the electromagnetic part to magnetically repel the magnetic part; when the vertical acceleration of the wheel is larger than a third set value, controlling the electromagnetic part to magnetically repel the magnetic part; when the vertical acceleration of the wheel is smaller than a fourth set value, controlling the electromagnetic part to magnetically attract the magnetic part; when the vertical acceleration of the auxiliary frame/the vehicle body upper mounting seat is larger than a first set value or the vertical acceleration of the auxiliary frame/the vehicle body upper mounting seat is smaller than a second set value, and when the vertical acceleration of the wheel is larger than a third set value or the vertical acceleration of the wheel is smaller than a fourth set value, calculating the absolute value of the difference between the vertical acceleration of the auxiliary frame/the vehicle body and the first set value or the second set value, namely a first absolute value, and the absolute value of the difference between the vertical acceleration of the wheel and the third set value or the fourth set value, namely a second absolute value, respectively, controlling the electromagnetic part to attract or repel the magnetic part according to the vertical acceleration of the auxiliary frame/the vehicle body when the first absolute value is larger than the second absolute value, and controlling the electromagnetic part to attract or repel the magnetic part according to the vertical acceleration of the wheel when the first absolute value is smaller than the second absolute value.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a vehicle suspension apparatus;
FIG. 2 is a schematic view of a vehicle suspension assembly;
FIG. 3 is a top view of the magnetic member;
fig. 4 is a schematic view of an electromagnetic member.
Reference numerals:
a suspension device 100;
an elastic member 10; a magnetic member 20; an electromagnetic member 30;
a vehicle body 200; a suspension 300; and a wheel 400.
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
A suspension apparatus 100 of a vehicle according to an embodiment of the present invention is described below with reference to fig. 1 to 4, the vehicle including a subframe, a vehicle body 200, and a suspension 300, the suspension apparatus 100 being disposed between the subframe, the vehicle body 200, and the suspension 300. It should be noted that, if the vehicle body 200 is a load-carrying vehicle body 200, there is no subframe, the vehicle body 200 directly serves as a mounting base for each assembly of the engine and the chassis, and the vehicle body 200 also functions as a frame and receives all loads.
As shown in fig. 1 to 2, a suspension apparatus 100 of a vehicle according to an embodiment of the present invention includes: elastic member 10, magnetic member 20 and electromagnetic member 30. The elastic member 10 may play a role of shock absorption and buffering in the suspension apparatus 100, and both ends of the elastic member 10 may be connected to the subframe/vehicle body 200 and the suspension 300, respectively, and specifically, an upper end of the elastic member 10 may be connected to the subframe/vehicle body 200, and a lower end of the elastic member 10 may be connected to the suspension 300.
The magnetic member 20 is provided on one of the subframe/vehicle body 200 and the suspension 300, or the magnetic member 20 is connected to one end of the elastic member 10, and the electromagnetic member 30 is provided on the other of the subframe/vehicle body 200 and the suspension 300, or the electromagnetic member 30 is connected to the other end of the elastic member 10.
That is, the arrangement of the magnetic member 20 and the arrangement of the electromagnetic member 30 are not limited to one, and both may be connected to the surrounding components, the magnetic member 20 may be disposed adjacent to the upper end of the elastic member 10, and the electromagnetic member 30 may be disposed adjacent to the lower end of the elastic member 10, or the magnetic member 20 may be disposed adjacent to the lower end of the elastic member 10, and the electromagnetic member 30 may be disposed adjacent to the upper end of the elastic member 10.
For example, the magnetic member 20 may be disposed on the subframe/body 200, the electromagnetic member 30 may be disposed on the suspension 300, and for example, the magnetic member 20 may be disposed on the suspension 300, and the electromagnetic member 30 may be disposed on the subframe/body 200, and for example, the magnetic member 20 may be connected to one end of the elastic member 10, and the electromagnetic member 30 may be connected to the other end of the elastic member 10.
As shown in fig. 1, the magnetic pole of the magnetic member 20 is opposed to the magnetic pole of the electromagnetic member 30 in the moving direction of the elastic member 10. The magnetic poles of the electromagnetic member 30 refer to magnetic poles of a magnetic field around the electromagnetic member 30, and the moving direction of the elastic member 10 is the up-down direction, wherein the elastic member 10 can elastically contract in the up-down direction and can also elastically expand in the up-down direction. The electromagnetic member 30 in the pass-through state can magnetically interact with the magnetic member 20, and the magnetic interaction includes magnetic attraction and magnetic repulsion, and the magnetic attraction or repulsion is required according to the motion conditions of the subframe/vehicle body 200 and the suspension 300.
Wherein the electromagnet 30 magnetically attracts or repels the magnetic member 20 when energized. It will be appreciated that by varying the magnitude and direction of the current in the electromagnetic element 30, the magnitude and direction of the magnetic field strength can be varied, thereby varying the magnitude and direction of the force between the magnetic element 20 and the electromagnetic element 30, varying the electromagnetic force between the sprung and unsprung portions, and thus varying the stiffness of the suspension apparatus 100 to vary the vehicle offset frequency.
According to an alternative embodiment of the present invention, as shown in fig. 1-2, the magnetic member 20 and the electromagnetic member 30 are both disposed in the elastic member 10, that is, the elastic member 10 may surround the magnetic member 20 and the electromagnetic member 30. The suspension device 100 thus provided can ensure a small volume and can ensure no contact with any peripheral members throughout the stroke of the suspension 300, so that the mounting arrangement of the suspension device 100 can be facilitated. Also, the elastic member 10 plays a role of protecting and limiting the magnetic member 20 and the electromagnetic member 30.
Alternatively, as shown in fig. 1-2, the elastic member 10 is a coil spring. The elastic member 10 is an elastic member of the vehicle suspension 300. The coil spring can reduce the space occupancy of the suspension apparatus 100 and can filter road bumps during vehicle travel to improve vehicle comfort or improve handling.
Specifically, as shown in fig. 3, the magnetic member 20 may have a cylindrical shape, and as shown in fig. 4, the electromagnetic member 30 is an electromagnetic coil. The axis of the electromagnetic member 30 is opposite to the axis of the magnetic member 20. The cylindrical magnetic member 20 has a small volume, and can be stably arranged in the elastic member 10, and the axis between the electromagnetic member 30 and the magnetic member 20 is arranged right opposite to each other, so that the magnetic member 20 can better sense the magnetic field intensity, and the magnetic poles of the magnetic member 20 and the magnetic poles of the electromagnetic member 30 can be conveniently arranged right opposite to each other.
Optionally, an electromagnetic shield (not shown) is disposed around the periphery of the electromagnetic element 30, and the electromagnetic shield may be used to shield the surrounding electromagnetic signal, so as to prevent the electromagnetic element 30 from being interfered by other electromagnetic signals, and thus, the operational reliability of the suspension apparatus 100 may be ensured.
Further, a heat sink is disposed around the magnetic member 20. That is, the effect of the magnetic member 20 is affected by the heat generated by the current in the elastic member 10 or the heat generated during the operation of the vehicle, and the heat generated can be effectively dispersed in time by providing the heat sink, so that the reliability of the use of the magnetic member 20 can be ensured.
The magnetic member 20 is a strong magnet. The strong magnet has strong magnetic properties, so that sufficient repulsion or attraction force can be generated to the electromagnetic member 30 during operation, thereby better adjusting the rigidity of the suspension apparatus 100.
Alternatively, the subframe/body 200 is provided with an upper mounting seat, the suspension 300 is provided with a lower mounting seat, the upper mounting seat and the lower mounting seat are arranged opposite to each other in the vertical direction, both ends of the elastic member 10 are respectively mounted on the upper mounting seat and the lower mounting seat, one of the magnetic member 20 and the electromagnetic member 30 is mounted on the upper mounting seat, and the other is mounted on the lower mounting seat. The rigidity of the suspension device 100 can be reasonably adjusted according to actual conditions by the vehicle arranged in this way, so that the vehicle offset frequency can be changed, the riding comfort can be guaranteed, and the manufacturing cost can be reduced.
Alternatively, the subframe/body 200 is provided with an upper mount in which one of the magnetic member 20 and the electromagnetic member 30 is mounted, and the other is directly mounted on the suspension 300. Still alternatively, the suspension 300 is provided with a lower mount in which one of the magnetic member 20 and the electromagnetic member 30 is mounted, and the other is directly mounted on the subframe/body 200. That is, the vehicle may employ a manner of omitting one mount, so that the mounting reliability of the suspension apparatus 100 can be secured as well.
In some examples of the invention, the magnetic member 20 is bonded to the upper mount and the electromagnetic member 30 is bonded to the lower mount. By adopting the bonding mode, the reliability of the magnetic part 20 and the reliability of the electromagnetic part 30 can be ensured, and the bonding mode is simple and convenient.
According to an embodiment of the present invention, the suspension apparatus 100 further comprises: the vehicle auxiliary frame comprises an upper acceleration sensor, a lower acceleration sensor, a controller and a power supply, wherein the upper acceleration sensor is used for detecting the vertical acceleration of the auxiliary frame/vehicle body 200, the lower acceleration sensor is used for detecting the vertical acceleration of the wheels 400 of the vehicle, the upper acceleration sensor and the lower acceleration sensor are both electrically connected with the controller, the controller is also electrically connected with the power supply, and the power supply is electrically connected with the electromagnetic part 30. The controller can compare the detection values of the upper acceleration sensor and the lower acceleration sensor with a preset value, and control the power supply to supply current in which direction and which magnitude to the electromagnetic part 30 according to the comparison result, so that the rigidity of the suspension device 100 can be changed, the vehicle offset frequency can be changed, the riding comfort can be ensured, and the manufacturing cost can be reduced.
Note that the upper acceleration sensor may be provided on any one of the upper mount, the sub-frame, and the vehicle body 200, the lower acceleration sensor may be provided in the vicinity of the wheel, or the suspension device 100 may directly use the detection result of the ESP system. The controller and power source may be disposed within the vehicle body 200.
The operation principle of the suspension apparatus 100 according to the embodiment of the present invention will be described in detail below in conjunction with the structure of the vehicle.
According to a vehicle offset frequency calculation formula:
n-vehicle offset frequency; c-stiffness of suspension 100; m-sprung mass.
The vertical acceleration signal Am of the auxiliary frame/vehicle body 200 (sprung mass) is collected, when Am is larger than a first set value Am0, the electromagnetic part 30 is electrified reversely to generate attraction, the electromagnetic part 30 is controlled to magnetically attract the magnetic part 20, the rigidity of the suspension device 100 is reduced, and the offset frequency is reduced, so that the comfort is facilitated. When Am is smaller than the first set value Am0, the electromagnetic member 30 is de-energized.
When Am is smaller than the second set value Am1, the electromagnetic element 30 is energized in the forward direction to generate a repulsive force, the electromagnetic element 30 is controlled to magnetically repel the magnetic element 20, the rigidity of the suspension device 100 is increased, and the offset frequency is increased, which is beneficial to the controllability and the grounding performance. When Am is less than the second set value Am1, the electromagnetic element 30 is de-energized.
The vertical acceleration signal Aw of the wheel 400 (unsprung mass) of the vehicle is collected, when Aw is larger than a third set value Aw0, the electromagnetic part 30 is electrified in the positive direction to generate repulsive force, the electromagnetic part 30 is controlled to magnetically repel the magnetic part 20, the rigidity of the suspension device 100 is increased, the offset frequency is increased, and the controllability and the grounding performance are facilitated. When Aw is less than the third set value Aw0, the electromagnetic member 30 is de-energized.
When Aw is smaller than the fourth setting value Aw1, the electromagnetic element 30 is energized in the reverse direction to generate an attraction force, the electromagnetic element 30 is controlled to magnetically attract the magnetic element 20, the rigidity of the suspension device 100 is reduced, and the offset frequency is reduced, which is beneficial to comfort. When Aw is less than the fourth set value Aw1, the electromagnetic member 30 is de-energized.
The first set value and the third set value are positive, the second set value and the fourth set value are negative, the second set value is equal to the negative first set value, and the fourth set value is equal to the negative third set value. The vertical acceleration is positive in the upward direction and negative in the downward direction.
When the vertical acceleration Am of the mount pad on the subframe/body 200 is greater than the first set value Am0 or when the vertical acceleration Am of the mount pad on the subframe/body 200 is less than the second set value Am1, and when the vertical acceleration Aw of the wheel 400 is greater than the third set value Aw0 or when the vertical acceleration Aw of the wheel 400 is less than the fourth set value Aw1, an absolute value of a difference between the vertical acceleration Am of the subframe/body 200 and the first set value Am0 or the second set value Am1, that is, a first absolute value, and an absolute value of a difference between the vertical acceleration Aw of the wheel 400 and the third set value Aw0 or the fourth set value Aw1, that is, a second absolute value are calculated, respectively, and when the first absolute value is greater than the second absolute value, the electromagnetic member 30 is controlled to attract or repel the magnetic member 20 according to the vertical acceleration Am of the subframe/body 200, and when the first absolute value is less than the second absolute value, the electromagnetic member 30 is controlled to attract or repel the magnetic member 20 according to the vertical acceleration Aw of the wheel 400.
For example, when the vertical acceleration Am of the mount on the subframe/body 200 is greater than the first set value Am0 and the vertical acceleration Aw of the wheel 400 is greater than the third set value Aw0, if the absolute value of the difference between the vertical acceleration Am of the subframe/body 200 and the first set value Am0 is greater than the absolute value of the difference between the vertical acceleration Aw of the wheel 400 and the third set value Aw0, that is, the first absolute value is greater than the second absolute value, the electromagnetic member 30 is controlled to magnetically attract the magnetic member 20, and the stiffness and the offset frequency of the suspension apparatus 100 are reduced.
For another example, when the vertical acceleration Am of the mount on the subframe/body 200 is smaller than the second set value Am1 and the vertical acceleration Aw of the wheel 400 is larger than the third set value Aw0, if the absolute value of the difference between the vertical acceleration Am of the subframe/body 200 and the second set value Am1 is larger than the absolute value of the difference between the vertical acceleration Aw of the wheel 400 and the third set value Aw0, that is, the first absolute value is larger than the second absolute value, the electromagnetic member 30 is controlled to magnetically repel the magnetic member 20, so that the stiffness of the suspension apparatus 100 is increased and the offset frequency is increased.
For another example, when the vertical acceleration Am of the mount on the subframe/vehicle body 200 is greater than the first set value Am0 and the vertical acceleration Aw of the wheel 400 is greater than the third set value Aw0, if the absolute value of the difference between the vertical acceleration Am of the subframe/vehicle body 200 and the first set value Am0 is smaller than the absolute value of the difference between the vertical acceleration Aw of the wheel 400 and the third set value Aw0, that is, the first absolute value is smaller than the second absolute value, the electromagnetic member 30 is controlled to magnetically repel the magnetic member 20, so that the stiffness of the suspension apparatus 100 is increased, the offset frequency is increased, and the operability and the grounding performance are improved.
When the first absolute value and the second absolute value are equal, there are various control methods.
For example, when the first absolute value and the second absolute value are equal, the vehicle may control the electromagnetic member 30 to attract or repel the magnetic member 20 according to the vertical acceleration of the subframe/body 200.
As another example, when the first absolute value and the second absolute value are equal, the vehicle may control the electromagnetic member 30 to attract or repel the magnetic member 20 according to the vertical acceleration of the suspension 300.
For another example, if the vertical acceleration of the wheel 400 is upward, the electromagnetic element 30 is preferentially controlled to repel the magnetic element 20, so as to weaken the upward movement tendency of the wheel 400; if the vertical acceleration of the wheel 400 is downward, the electromagnetic member 30 is controlled to attract or repel the magnetic member 20 according to the vertical acceleration of the subframe/body 200.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A suspension device of a vehicle including a sub-frame, a vehicle body, and a suspension, characterized by comprising:
the two ends of the elastic part are respectively connected with the auxiliary frame/the vehicle body and the suspension;
a magnetic member provided on one of the sub-frame/vehicle body and the suspension or connected with one end of the elastic member;
an electromagnetic member provided on the other of the subframe/vehicle body and the suspension or connected to the other end of the elastic member, a magnetic pole of the magnetic member being opposed to a magnetic pole of the electromagnetic member in a direction toward the moving direction of the elastic member;
when the vertical acceleration of the auxiliary frame/the vehicle body upper mounting seat is larger than a first set value or the vertical acceleration of the auxiliary frame/the vehicle body upper mounting seat is smaller than a second set value, and when the vertical acceleration of the wheel is larger than a third set value or the vertical acceleration of the wheel is smaller than a fourth set value, calculating the absolute value of the difference between the vertical acceleration of the auxiliary frame/the vehicle body and the first set value or the second set value, namely a first absolute value, and the absolute value of the difference between the vertical acceleration of the wheel and the third set value or the fourth set value, namely a second absolute value, respectively, controlling the electromagnetic part to attract or repel the magnetic part according to the vertical acceleration of the auxiliary frame/the vehicle body when the first absolute value is larger than the second absolute value, and controlling the electromagnetic part to attract or repel the magnetic part according to the vertical acceleration of the wheel when the first absolute value is smaller than the second absolute value.
2. The suspension device of a vehicle according to claim 1, wherein the magnetic member and the electromagnetic member are both provided in the elastic member.
3. The suspension device of a vehicle according to claim 2, wherein the elastic member is a coil spring.
4. The suspension apparatus for a vehicle according to claim 1, wherein an axis of the electromagnetic member is opposed to an axis of the magnetic member.
5. The suspension device for a vehicle according to claim 1, wherein a heat sink is provided around the magnetic member.
6. The suspension apparatus for a vehicle according to claim 1, wherein an electromagnetic shield is provided around the electromagnetic member.
7. The suspension apparatus for a vehicle according to claim 1, wherein an upper mounting seat is provided on the subframe/body, a lower mounting seat is provided on the suspension, the upper mounting seat and the lower mounting seat are disposed vertically opposite to each other, one of the magnetic member and the electromagnetic member is mounted on the upper mounting seat, and the other is mounted on the lower mounting seat; and/or two ends of the elastic piece are respectively arranged on the upper mounting seat and the lower mounting seat.
8. The suspension device for a vehicle according to claim 1, wherein an upper mount is provided on the subframe/vehicle body or a lower mount is provided on the suspension, and one of the magnetic member and the electromagnetic member is mounted on the upper mount or the lower mount.
9. The suspension device of a vehicle according to claim 1, characterized by further comprising: go up acceleration sensor, lower acceleration sensor, controller and power, it is used for detecting to go up acceleration sensor the vertical acceleration of sub vehicle frame/automobile body, acceleration sensor is used for detecting down the vertical acceleration of the wheel of vehicle, go up acceleration sensor with acceleration sensor all with the controller electricity is connected down, the controller still with the power electricity is connected, the power with the electromagnetism piece electricity is connected.
10. A control method of a suspension apparatus of a vehicle according to any one of claims 1 to 9,
when the vertical acceleration of the auxiliary frame/the vehicle body is larger than a first set value, controlling the electromagnetic part to magnetically attract the magnetic part;
when the vertical acceleration of the auxiliary frame/the vehicle body is smaller than a second set value, controlling the electromagnetic part to magnetically repel the magnetic part;
when the vertical acceleration of the wheel is larger than a third set value, controlling the electromagnetic part to magnetically repel the magnetic part;
and when the vertical acceleration of the wheel is smaller than a fourth set value, controlling the electromagnetic part to magnetically attract the magnetic part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911183192.3A CN112848831B (en) | 2019-11-27 | 2019-11-27 | Suspension device for vehicle and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911183192.3A CN112848831B (en) | 2019-11-27 | 2019-11-27 | Suspension device for vehicle and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112848831A CN112848831A (en) | 2021-05-28 |
| CN112848831B true CN112848831B (en) | 2023-01-06 |
Family
ID=75985710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911183192.3A Active CN112848831B (en) | 2019-11-27 | 2019-11-27 | Suspension device for vehicle and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112848831B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980049097A (en) * | 1996-12-19 | 1998-09-15 | 박병재 | Automotive Magnetic Shock Absorbers |
| WO2007079733A2 (en) * | 2006-01-10 | 2007-07-19 | Zf Friedrichshafen Ag | Method for determining at least one displacement state of a vehicle body |
| CN104648073A (en) * | 2015-02-04 | 2015-05-27 | 福州大学 | Electromagnetic variable suspension and regulating method thereof |
| CN106004310A (en) * | 2016-06-22 | 2016-10-12 | 北京长安汽车工程技术研究有限责任公司 | Automobile and suspension offset frequency adjustment device |
| CN208247894U (en) * | 2018-03-16 | 2018-12-18 | 北京汽车股份有限公司 | Suspension fork screw spring component, automotive suspension and automobile |
| CN109649103A (en) * | 2019-01-22 | 2019-04-19 | 河南科技大学 | Suspension system and vehicle |
-
2019
- 2019-11-27 CN CN201911183192.3A patent/CN112848831B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980049097A (en) * | 1996-12-19 | 1998-09-15 | 박병재 | Automotive Magnetic Shock Absorbers |
| WO2007079733A2 (en) * | 2006-01-10 | 2007-07-19 | Zf Friedrichshafen Ag | Method for determining at least one displacement state of a vehicle body |
| CN104648073A (en) * | 2015-02-04 | 2015-05-27 | 福州大学 | Electromagnetic variable suspension and regulating method thereof |
| CN106004310A (en) * | 2016-06-22 | 2016-10-12 | 北京长安汽车工程技术研究有限责任公司 | Automobile and suspension offset frequency adjustment device |
| CN208247894U (en) * | 2018-03-16 | 2018-12-18 | 北京汽车股份有限公司 | Suspension fork screw spring component, automotive suspension and automobile |
| CN109649103A (en) * | 2019-01-22 | 2019-04-19 | 河南科技大学 | Suspension system and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112848831A (en) | 2021-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9633644B2 (en) | Vehicle vibration and noise reduction system | |
| US8160774B2 (en) | Vehicular actuator system | |
| EP1942020B1 (en) | Suspension system for vehicle | |
| US8616536B2 (en) | Active dynamic vibration absorber apparatus for vehicle | |
| EP1445131A3 (en) | Electromagnetic suspension system for vehicle | |
| CN109649103A (en) | Suspension system and vehicle | |
| CN106004306B (en) | Magnetic suspension suspension and vehicle with it | |
| CN112848831B (en) | Suspension device for vehicle and control method thereof | |
| CN209381715U (en) | A kind of suspension system and vehicle | |
| EP3366946B1 (en) | Powertrain mount system | |
| JP2005096587A (en) | Vehicle suspension device | |
| CN101818773A (en) | Shock absorber with controllable damping | |
| RU176370U1 (en) | Vehicle seat suspension | |
| CN112644539A (en) | Magnetic suspension spring for railway vehicle | |
| JPH06312616A (en) | Vibration control supporting device | |
| JP2008273356A (en) | Suspension system for vehicle | |
| KR101913082B1 (en) | Electronic suspension for vehicles | |
| CN106427449B (en) | Magnetic suspension suspension and vehicle with it | |
| KR100448777B1 (en) | a vibration damping device for shock absorber of vehicles | |
| JP2010228579A (en) | Vehicular suspension system | |
| KR101465009B1 (en) | Secondary suspension device for railway car using magnetic levitation principle | |
| CN112277557A (en) | Damping system for suspension, vehicle suspension and vehicle | |
| KR20050009017A (en) | Vehicle suspension and method for controlling vehicle behavior using electromagnetic effect | |
| JPH10246270A (en) | Suspension device for vehicle | |
| RU154616U1 (en) | ADAPTIVE SUSPENSION |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |