CN209539900U - Automobile Magnetorheological Semi-active Suspension damper - Google Patents
Automobile Magnetorheological Semi-active Suspension damper Download PDFInfo
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- CN209539900U CN209539900U CN201920301336.XU CN201920301336U CN209539900U CN 209539900 U CN209539900 U CN 209539900U CN 201920301336 U CN201920301336 U CN 201920301336U CN 209539900 U CN209539900 U CN 209539900U
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- CN
- China
- Prior art keywords
- damper
- inner cylinder
- piston component
- valve assembly
- bottom valve
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- 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.)
- Expired - Fee Related
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- 239000000725 suspension Substances 0.000 title claims abstract description 42
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000013016 damping Methods 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000003190 augmentative effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- 229920006380 polyphenylene oxide Polymers 0.000 description 2
- 238000000518 rheometry Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to vehicle suspension fields, there is provided a kind of Automobile Magnetorheological Semi-active Suspension damper includes piston rod, bottom valve assembly, piston component, damper ontology, control module, damper ontology, which is that hollow tubular is coaxially interior, is cased with inner cylinder, liquid storage chamber is formed between damper ontology and inner cylinder, one end is connect with automotive wheel, the other end is connect with automobile frame, bottom valve assembly is fixed at damper ontology close to one end of automotive wheel, piston component is arranged in damper ontology, piston component can be slided freely along the inner cylinder axis direction, inner cylinder is nonmetallic materials, inner wall is provided with guide rail, piston component is connect towards one end far from bottom valve assembly with piston rod, magnetorheological fluid is full of inside liquid storage chamber and inner cylinder, it is not only compact-sized, simply, and improve the internally-damped characteristic of damper.
Description
Technical field
The utility model relates to vehicle suspension technical field, in particular to a kind of Automobile Magnetorheological Semi-active Suspension vibration damping
Device.
Background technique
Automotive suspension (Automotive Suspension) is the important set for influencing automobile ride, manipulating stability
At part, automotive suspension is divided into independent suspension and rigid axle suspension, typically refers to vehicle body, vehicle frame, the connection structure between wheel
System, structure includes shock absorber, bearing spring, sway bar, longitudinal rod etc., when running car is on road surface because of ground injustice
It is whole and impacted, it is greatly to be absorbed by automotive suspension, so automotive suspension is the pass for influencing car steering comfort
Key member is suffered from various types of vehicles and is widely applied.
Inhibit vibration that vehicle body is kept to stablize, using magnetorheological fluid using inductive reaction fast reaction for pavement behavior
The working media of (Magneto-Rheological Fluid, MR) as damper, can work normally in 50~140 DEG C, and
Compared to traditional vehicle shock absorber, moving component is reduced, and energy consumption is small and with small vibration.
The fixed passive suspension of traditional parameter not can be carried out timely adjustment control, road surface bad adaptability, semi-active suspension
Perceive pavement behavior and body gesture by sensor, damping parameter be adjusted, so as to improve vehicle running smoothness and
A kind of controllable type suspension system of stability.109203900 A of CN discloses a kind of automobile electrically-controlled half based on magnetic converting technique
Active suspension system, relative travel information and magnetic current including normal acceleration information, wheel and vehicle body for detecting vehicle body
The detection module for becoming the temperature information of damper, according to the normal acceleration information of the vehicle body, the phase of the wheel and vehicle body
The current driving pavement state of the vehicle is identified to the temperature information of travel information and the magneto-rheological vibration damper, and according to institute
State the Suspension control module that current driving pavement state controls the damping state of the magneto-rheological vibration damper.CN107976904A is public
A kind of magneto-rheological semiactive suspension Taylor series-double H is opened2Time lag compensation control method is write time lag as first order Taylor grade
Number-Delay Equations, and with suspension system state equation form augmented state equation, and the first order Taylor series-Delay Equations with
The PREDICTIVE CONTROL power at next time lag moment is input；For this augmented state equation, H is utilized2Norm constraint suspension comprehensive performance
Index utilizes H2The PREDICTIVE CONTROL power at norm constraint lower time lag moment designs Taylor series-H2/H2Time lag compensation controller；
The time lag compensation controller is input with suspension state variable and above-mentioned first order Taylor series-Delay Equations output, below for the moment
The PREDICTIVE CONTROL power at stagnant moment is that control current signal is sought in output, and inputs the reality that Numerical Controlled Current Source obtains magneto-rheological vibration damper
Border controls electric current, and then realizes and control magneto-rheological semiactive suspension time lag compensation.
However the damping force size of Automobile Magnetorheological Semi-active Suspension be by input current timely adjustment, and because magnetic current cash
As the factors such as, electromagnetic coil lag are there are ysteresis effect, entire suspension system is made to show as hysteresis and non-linear, so that
Structure is complicated lacks active control, so traditional suspension frame structure cannot be well adapted for damping semi- active control under actual condition
Needs.
Utility model content
In view of this, the utility model is directed to a kind of Automobile Magnetorheological Semi-active Suspension damper, the automobile magnetic current
It is not only compact-sized, simple to become semi-active suspension damper, but also partly can actively improve the internally-damped characteristic of damper, reduces magnetic
Hysteresis when rheology liquid status changes, control method is easy to implement, has semi- active control ability and high-efficient.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that a kind of half active of auto magnetorheological
Suspension shock-absorber, the Automobile Magnetorheological Semi-active Suspension damper include piston rod, bottom valve assembly, piston component, damper
Ontology, control module, the damper ontology are hollow tubular, and the damper ontology is coaxially interior to be cased with inner cylinder, described to subtract
Vibration device ontology and the inner cylinder between be formed with liquid storage chamber, damper ontology one end is connect with automotive wheel, the other end and
Automobile frame connection, the bottom valve assembly are fixed at the damper ontology close to one end of automotive wheel, the piston
Component is arranged in the damper ontology, and the piston component can be slided freely along the inner cylinder axis direction, the inner cylinder
For nonmetallic materials, the inner cylinder inner wall is provided with guide rail, the one end and institute of the piston component towards the separate bottom valve assembly
Piston rod connection is stated, is full of magnetorheological fluid inside the liquid storage chamber and the inner cylinder.
Preferably, cavity of resorption is formed between the piston component and the bottom valve assembly, the piston component is far from described
The end face of bottom valve assembly and the inner cylinder inner wall are formed with epicoele, and the piston component end face is circumferentially laid at least four circulation
Hole.
Preferably, the piston component side circumferential direction winding with guiding-wire, close to lead loop described in the bottom valve assembly side
Between spacing be greater than the spacing described in the other side between lead loop.
Preferably, the conducting wire is electrically connected with control module.
Preferably, the inner cylinder axis direction setting guide rail, at least 4, the guide rail.
Using the above-mentioned Automobile Magnetorheological Semi-active Suspension damper of the utility model, compared with the existing technology, have as follows
Effect:
By setting interior blank pipe shape for the damper body interior, and it is arranged inner cylinder, by liquid storage chamber, pistons work chamber
It is full of magnetorheological fluid in vivo, magnetorheological fluid can not only change the magnetic in piston component recirculation hole according to hot-wire coil, hot-wire coil
Rheology liquid damping characteristic value, and the magnetorheological fluid damp characteristic value of liquid storage chamber corresponding position can be changed, so that further synthesis changes
It is apt to corresponding damping characteristic；It is arranged with conducting wire on piston component and forms coil and recirculation hole circumferentially, compact-sized,
Simply, and facilitate control.
Other features and advantages of the utility model will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The exemplary embodiment and its explanation of type are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 is a kind of cut-away section of embodiment of the Automobile Magnetorheological Semi-active Suspension damper of the utility model
Figure.
Description of symbols:
1 piston rod, 2 epicoele
3 liquid storage chamber, 4 cavity of resorption
5 bottom valve assembly, 6 piston component
7 conducting wire, 8 recirculation hole
9 damper ontology, 10 guide rail
11 inner cylinders
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, left and right " is usual
Refer to reference to upper and lower, left and right shown in the drawings；" inside and outside " refers to the inside and outside of the profile relative to each component itself.Below will
The utility model is described in detail with reference to attached drawing and in conjunction with embodiment.
In order to solve the complexity of magneto-rheological semiactive suspension damper structure pointed by background technology part, control difficulty is big
Problem, as shown in Figure 1, in the present invention, Automobile Magnetorheological Semi-active Suspension damper includes piston rod 1, bottom valve assembly
5, piston component 6, damper ontology 9, control module, the damper ontology 9 are hollow tubular, and the damper ontology 9 is same
It is cased with inner cylinder 11 in axis ground, liquid storage chamber 3, the damper ontology 9 are formed between the damper ontology 9 and the inner cylinder 11
One end is connect with automotive wheel, and the other end is connect with automobile frame, and the bottom valve assembly 5 is fixed at the damper ontology
9 are arranged in the damper ontology 9 close to one end of automotive wheel, the piston component 6, and the piston component 6 can be free
It is slided along 11 axis direction of inner cylinder, 11 inner wall of inner cylinder is provided with guide rail 10, and the piston component 6 is towards far from the bottom
One end of valve module 5 is connect with the piston rod 1, and magnetorheological fluid is full of inside the liquid storage chamber 3 and the inner cylinder 11.
In the present invention, the conduction for the control of preferably damping characteristic and magnetorheological fluid in recirculation hole, damping
Characteristic changing and hysteresis is reduced, under preferable case, solid suspended particles use carbonyl iron dust in the magnetorheological fluid of selection, satisfy
With 2~3 tesla of the intensity of magnetization, diameter is 0.1 μm~200 μm, and yield stress changes 20kPa~35kPa, solid suspension grain
Son preferably uses spherical or fusiform form, and density is 5~12g/cm3。
In order to reduce shielding of the inner cylinder 11 to magnetic field, and influence of the reinforcement to 11 outer wall magnetorheological fluid of inner cylinder, institute
It states inner cylinder 11 and uses nonmetallic materials, for example, polycarbonate (PC) or polyformaldehyde (POM) or polyphenylene oxide (PPO).
In the present invention, for the sap cavity that the piston component 6 forms different pressure between inner cylinder, the piston group
Be formed with cavity of resorption 4 between part 6 and the bottom valve assembly 5, end face of the piston component 6 far from the bottom valve assembly 5 with it is described
11 inner wall of inner cylinder is formed with epicoele 2；The piston component 6 is free to slide more smoothly along inner cylinder inner wall, and in horizontal cross-section institute
In plane uniform force, 6 end face of piston component is circumferentially laid at least four recirculation hole 8.
In the present invention, in order to be passed through identical size of current in coil, the recirculation hole 8 is close to bottom valve assembly
The damped coefficient that side is formed is less than the recirculation hole 8 in the magnetic field for forming varying strength far from bottom valve assembly side, to change
Become the damped coefficient of magnetorheological fluid, the 6 side circumferential direction winding with guiding-wire 7 of piston component, close to described in 5 side of bottom valve assembly
Spacing between 7 coil of conducting wire is greater than the spacing between 7 coil of conducting wire described in the other side, under preferable case, close to the bottom valve
Spacing between 7 coil of conducting wire described in 5 side of component is 4mm~8mm, far from 7 coil of conducting wire described in 5 side of bottom valve assembly
Between spacing be 2~4mm.
In the present invention, for the magnetorheological fluid state in semi- active control damper, the conducting wire 7 and control
Module electrical connection, preferably in the case of, control module can be integrated in automotive suspension electric-control system inside modules.
In the present invention, in order to which piston component axially can preferably move in inner cylinder, the inner cylinder
The guide rail 10 is arranged in 11 axis directions, in order to which piston component can run more steady, the guide rail 10 at least 4 in inner tube wall
Item.
The foregoing is merely the better embodiments of the utility model, are not intended to limit the utility model, it is all
Within the spirit and principles of the utility model, it is practical new to should be included in this for any modification, equivalent replacement, improvement and so on
Within the protection scope of type.
Claims (5)
1. a kind of Automobile Magnetorheological Semi-active Suspension damper, which is characterized in that the Automobile Magnetorheological Semi-active Suspension vibration damping
Device includes piston rod (1), bottom valve assembly (5), piston component (6), damper ontology (9), control module, the damper ontology
(9) be hollow tubular, the damper ontology (9) coaxially in is cased with inner cylinder (11), the damper ontology (9) with it is described interior
It is formed with liquid storage chamber (3) between cylinder (11), described damper ontology (9) one end is connect with automotive wheel, the other end and Automobile
Frame connection, the bottom valve assembly (5) are fixed at the one end of the damper ontology (9) close to automotive wheel, the piston
In the damper ontology (9), the piston component (6) can be freely along the inner cylinder (11) axis direction for component (6) setting
Sliding, the inner cylinder (11) are nonmetallic materials, and inner cylinder (11) inner wall is provided with guide rail (10), the piston component (6)
It is connect towards one end far from the bottom valve assembly (5) with the piston rod (1), in the liquid storage chamber (3) and the inner cylinder (11)
Portion is full of magnetorheological fluid.
2. Automobile Magnetorheological Semi-active Suspension damper according to claim 1, which is characterized in that the piston component
(6) it is formed between the bottom valve assembly (5) cavity of resorption (4), end of the piston component (6) far from the bottom valve assembly (5)
Face and the inner cylinder (11) inner wall are formed with epicoele (2), and piston component (6) end face is circumferentially laid at least four recirculation hole
(8)。
3. Automobile Magnetorheological Semi-active Suspension damper according to claim 2, which is characterized in that the piston component
(6) side circumferential direction winding with guiding-wire (7), the spacing between conducting wire (7) coil described in the bottom valve assembly (5) side are greater than another
Spacing between conducting wire described in side (7) coil.
4. Automobile Magnetorheological Semi-active Suspension damper according to claim 3, which is characterized in that the conducting wire (7) with
The control module electrical connection.
5. Automobile Magnetorheological Semi-active Suspension damper according to claim 1, which is characterized in that inner cylinder (11) axis
The guide rail (10), the guide rail (10) at least 4 is arranged in line direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920301336.XU CN209539900U (en) | 2019-03-08 | 2019-03-08 | Automobile Magnetorheological Semi-active Suspension damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920301336.XU CN209539900U (en) | 2019-03-08 | 2019-03-08 | Automobile Magnetorheological Semi-active Suspension damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209539900U true CN209539900U (en) | 2019-10-25 |
Family
ID=68275007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920301336.XU Expired - Fee Related CN209539900U (en) | 2019-03-08 | 2019-03-08 | Automobile Magnetorheological Semi-active Suspension damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209539900U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812536A (en) * | 2019-03-08 | 2019-05-28 | 重庆工业职业技术学院 | Automobile Magnetorheological Semi-active Suspension damper and control method |
| CN114211926A (en) * | 2021-12-31 | 2022-03-22 | 重庆工业职业技术学院 | Automobile suspension control system for bumpy road surface |
-
2019
- 2019-03-08 CN CN201920301336.XU patent/CN209539900U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812536A (en) * | 2019-03-08 | 2019-05-28 | 重庆工业职业技术学院 | Automobile Magnetorheological Semi-active Suspension damper and control method |
| CN114211926A (en) * | 2021-12-31 | 2022-03-22 | 重庆工业职业技术学院 | Automobile suspension control system for bumpy road surface |
| CN114211926B (en) * | 2021-12-31 | 2022-08-05 | 重庆工业职业技术学院 | Automobile suspension control system for bumpy road surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |