CN2708034Y - Vibration damper for vehicle suspension - Google Patents
Vibration damper for vehicle suspension Download PDFInfo
- Publication number
- CN2708034Y CN2708034Y CN 200420060203 CN200420060203U CN2708034Y CN 2708034 Y CN2708034 Y CN 2708034Y CN 200420060203 CN200420060203 CN 200420060203 CN 200420060203 U CN200420060203 U CN 200420060203U CN 2708034 Y CN2708034 Y CN 2708034Y
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- vibration damper
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- piston rod
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Abstract
The utility model relates to a shock absorber for a vehicle suspension, which is composed of a cylinder body, liquid filled in the cylinder body, a dust cover, a piston head, a piston rod, an energizing coil on the piston head, an induction coil in the piston rod, etc. When the energizing coil is loaded with a signal of intermediate frequency alternating voltage, a same frequency alternating magnetic field generated by the energizing coil forms a closing magnetic loop in the part structure of the shock absorber, and the induction coil is caused to generate a signal of same frequency alternating voltage. When a vehicle shocks, a magnetic linkage of the induction coil is caused to generate corresponding linear variation; voltage signals generated on both ends of the coil is amplitude modulation signal with double sidebands, wherein, the amplitude modulation signals reflect the speed of relative movement between a vehicle body and a vehicle bridge. The shock absorber for a vehicle suspension formed in such a way can realize the sensing of the speed of the relative movement between the vehicle body and the vehicle bridge, so that the shock absorber not only has the function of damping shock absorption, but also has the function of the self sensing of the relative speed. The utility model further realizes the self adaptation for the damping shock absorption of a vehicle suspension system.
Description
Technical field
The utility model relates to a kind of vehicle suspension vibration damper, especially a kind of vehicle suspension vibration damper with relative velocity self-sensing function that designs at the controlled semi-active vehicle suspension system of damping force.
Technical background
Vehicle suspension is meant the general name of all the power transmission connection sets between vehicle body and the vehicle bridge.The suspension system of vehicle has directly determined the riding comfort and the control stability of vehicle.In recent years, in order to improve the performance of suspension system, improve the riding comfort and the control stability of vehicle, people's research has also been developed multiple semi-active suspension system.The controlled semi-active vehicle suspension system of damping force mainly is made of parts such as sensor, vibration damper, spring, electric control device, automatically controlled servovalve, accumulators (comprising liquid container and nitrogen chamber).In the vehicle driving process, electric control device according to sensor to vehicle body status and pavement conditions send control commands corresponding realizes the damping force of vibration damper by the working state that changes automatically controlled servovalve corresponding control and adjusting.In the damping force control system of this closed loop, important input quantity is exactly the vehicle body that connected of vibration damper two ends and the speed of related movement between the vehicle bridge.
In the controlled semi-active vehicle suspension system of existing damping force, realize that the mode of the speed of related movement sensing between vehicle body and the vehicle bridge mainly contains two kinds: adopt the relative position sensor mode and adopt the acceleration transducer mode.Generally in suspension system, dispose one or more relative position sensors (installing side by side) when adopting the relative position sensor mode with vibration damper, one end of sensor is connected on the vehicle body, the other end is connected on the vehicle bridge, sensor converts the variation of the relative position between vehicle body and the vehicle bridge to electrical signal when Vehicular vibration, and this signal promptly obtains relative velocity by differentiator.Generally in the appropriate location of vehicle body and vehicle bridge one or more acceleration transducers are installed respectively when adopting the acceleration transducer mode, by corresponding two-way acceleration signal being subtracted each other and through follow-up integration circuit acquisition vehicle body and the speed of related movement between the vehicle bridge.No matter adopt which kind of sensing mode, the sensor of configuration has not only increased the cost and the structural complexity of whole suspension system separately, and directly be exposed to sensor among the external environment condition and be easy to be subjected to the interference of external environment (as mechanical collision, infiltration oil impregnate etc.) and damage, thereby influence the global reliability and the stability of suspension system, shorten the working life of system.
Thomas W.Nehl, " Vehicle SuspensionDamper with Relative Velocity Sensor Having Controlled Flux Path " (translated name: vehicle suspension damping device by name of applications such as Jeri A.Betts and Larry S.Mihalko with relative velocity sensor of controlled magnetic circuit, U. S. Patent, the patent No.: patent of invention 5252729,1993) discloses a kind of new vehicle suspension shock-absorber of integrated relative velocity sensor.Vibration damper adopts the excitation field of the stationary magnetic field of permanent magnet generation as the relative velocity sensor, and utilizes the part-structure (comprising the dustproof enclosure) of vibration damper to form closed work magnetic loop.When this vibration damper is operated in the actual environment, the electromagnetic interference that its work magnetic loop is easy to be subjected to from vehicle body, road surface and vehicle periphery influences, the voltage signal of the sign relative velocity of inductor coil two ends induction generation is distorted, cause the error of relative velocity sensing to increase.Simultaneously, because the dust-proof cover of vibration damper is enclosed within the outside of cylinder body, and the kind of air-gap design between the dustproof enclosure and the cylinder body is a pith of work magnetic circuit, have only size of gaps to be maintained fixed the constant induced voltage signal that just can make inductor coil and vehicle body and become the favorable linearity proportionate relationship with speed of related movement between the vehicle bridge, but be difficult in the actual vehicle vibration processes guarantee that the size of this air gap immobilizes, thereby the degree of accuracy and the stability decreases that cause relative velocity to be measured.In addition, because therefore the dustproof enclosure of vibration damper will will adopt the metallic material of magnetic conduction as the part of the closed work magnetic circuit of relative velocity sensor, then can't apply for the vibration damper that adopts the dustproof enclosure of other form such as rubber.These are not enough and narrow limitation makes people's such as Thomas patent of invention should use the restriction that is subjected to a certain degree.
Summary of the invention
The utility model discloses a kind of vehicle suspension vibration damper, it is integrated magnetoelectric relative velocity sensor on the structure of existing vehicle suspension vibration damper, realize real-time, the accurately detection of the speed of related movement between vehicle body and the vehicle bridge, make the vehicle suspension vibration damper not only have the damping vibration attenuation function, but also have relative velocity self-sensing function, further realize the self-adaptive damping vibration damping purpose of vehicle suspension system.
The purpose of this utility model is realized by following mode:
A kind of vehicle suspension vibration damper comprises the cylinder body in the hydraulic type monotubular vibration damper and is contained in the interior liquid of cylinder body, piston rod and connection piston head, upper end cap, lower end cap and seal ring thereon.The upper end cap of cylinder body has dust-proof cover outward, in order to protect piston rod and to prevent that introduced contaminants from entering cylinder body.Piston head is divided into two active chambers up and down to cylinder body, and liquid flows between two active chambers back and forth by the damping hole of piston head and the orifice valve of outside and vibration damper cooperating.There is connection set to be connected on piston rod outer end and the cylinder barrel lower end cap with the vehicle body or the vehicle bridge of vehicle.The utility model is coiling one electromagnetic coil on piston head, and as the field coil of relative velocity sensor, the lead-in wire of field coil connects outside excitation signal source, i.e. intercarrier signal source.Simultaneously, piston rod is designed to hollow tubular structure, in the piston rod the inside wire winding rod is housed, and on wire winding rod even coiling one electromagnetic coil, inductor coil as the relative velocity sensor, the lead-in wire of inductor coil connects the external signal pre-process circuit, and scribbles the insulation glue-line on every side at the outer surface and the lead-in wire thereof of above-mentioned field coil and inductor coil.The lower end cap of the piston rod of vibration damper, cylinder barrel adopts extremely low permeability magnetic material in the utility model, and the wire winding rod in the piston head, piston rod, the cylinder barrel and the upper end cap of cylinder body all adopt high permeability material.In addition, between cylinder barrel and the piston head, adopt Spielpassung between upper end cap and the piston rod.
Piston head described in the utility model adopts the cylinder I-shape construction, field coil evenly is wound in the I-shaped groove, there is the pressing line disk of the utmost point low permeability upper end of piston head, have the breach that the lead-in wire that holds field coil passes on it, the lower end of piston head is fixedly connected on the piston rod by the packing ring and the locking nut of utmost point low permeability.
Vehicle suspension vibration damper with relative velocity self-sensing function described in the utility model, when feeding an intermediate frequency alternating voltage signal to field coil by outside excitation signal source, the same frequency alternating magnetic field that it produces will form a closed magnetic loop between upper end cap, cylinder barrel, cylinder barrel and the piston of the wire winding rod in piston head, the piston rod, cylinder body and in the air gap between upper end cap and the piston rod, and will make inductor coil produce together alternating voltage signal frequently.Piston head and piston rod produce the axial relative movement identical with vibration frequency with respect to cylinder body when Vehicular vibration, owing between the cylinder barrel and piston of vibration damper, adopt Spielpassung between upper end cap and the piston rod, make that the air gap between them remains unchanged substantially.Because most magnetic resistance of magnetic loop concentrate on this air gap, air gap is constant substantially when Vehicular vibration makes the magnetic resistance in the magnetic loop remain unchanged substantially, and magnetic resistance remains unchanged substantially and makes the magnetic flux in the magnetic loop remain unchanged substantially.The piston rod of vibration damper with respect to this of cylinder body or advance or go out to axial the motion make the coil turn of inductor coil in magnetic loop correspondingly increase or reduce.Because magnetic resistance and magnetic flux remain unchanged substantially in the magnetic loop, the variation of coil turn will cause that magnetic linkage of induction changes thereupon, and the voltage signal of inducting in the two ends that make this coil becomes a double-side band amplitude-modulated signal, its am signals is consistent with the Changing Pattern of magnetic linkage, the carrier signal of this amplitude-modulated signal then is original intermediate frequency alternating voltage signal in the inductor coil, this amplitude-modulated signal is sent vibration damper as the voltage output signal of inductor coil by the lead-in wire of coil, and be sent to the external signal pre-process circuit and amplify, demodulation, Signal Pretreatment such as filtering obtain and the consistent am signals of inductor coil magnetic linkage Changing Pattern.Speed of related movement between the Changing Pattern of this signal and vehicle body and the vehicle bridge is certain proportionate relationship, and the frequency of signal is consistent with this relative movement frequency, and the amplitude of signal becomes certain linear relationship with this relative movement amplitude.Like this, make the vehicle suspension vibration damper that constitutes thus can realize real-time detection, make vibration damper have relative velocity self-sensing function the speed of related movement between vehicle body and the vehicle bridge.
Advantage of the present utility model:
1. the utility model has been simplified the structure of the controlled semi-active vehicle suspension system of damping force, can reduce system cost.Adopt vehicle suspension vibration damper described in the utility model can constitute the controlled semi-active vehicle suspension system of various damping forces (as motorcycle, automobile or train etc.), thereby save the various relative position sensors or the acceleration transducer that are used to detect relative velocity between vehicle body and the vehicle bridge, improve the level of integration of whole suspension system structure, the cost of reduction system aspect equipment and corresponding I﹠M thereof.
2. the utility model is integrated with relative velocity sensor and vibration damper, and anti-outside electromagnetic interference ability is strong.In the utility model, the relative velocity sensor adopts has the strong intermediate frequency active sensor principle formation of anti-electromagnetic interference capability, promptly utilize the outside voltage of intermediate frequency signal source that provides on field coil, to produce same frequency electromagnetic field, and on the vibration damper internal structure, form the magnetic loop of a closure, in inductor coil, will induct and obtain a same frequency voltage output signal that comprises the relative vibration velocity information of vehicle body with vehicle bridge, by the frequency-selecting of carrier signal being amplified the electromagnetic interference influence that to eliminate extraneous various frequency ranges, make this sensor have very strong anti-outside electromagnetic interference ability.Adopt permanent magnet as excitation field in people's such as Thomas the patent thereby effectively overcome, the work magnetic loop of making is easy to be subjected to outside electromagnetic interference and causes inductor coil output signal on its dust-proof cover that the phenomenon of distortion takes place, and is beneficial in actual applications and promotes.
3. the relative velocity testing precision height of the integrated relative velocity sensor of the utility model vibration damper.In the present invention, owing to adopt Spielpassung between cylinder barrel and the piston and between cylinder body upper end cap and the piston rod, this gap can remain unchanged well in the Vehicular vibration process, make the size of gaps in the work magnetic loop also remain unchanged accordingly, the relative velocity voltage signal that thereby making inducts on the inductor coil obtains is linear with actual vehicle body and the relative vibration velocity between the vehicle bridge, guarantees the velocity pick-up precision.Effectively overcome in people's such as Thomas the patent owing to the work magnetic circuit size of gaps can not finely be maintained fixed the sensing accuracy decline problem that the transducing signal that occurs and the linear relationship instability of actual relative vibration velocity cause.
4. improve the functional reliability and the stability of the controlled semi-active vehicle suspension system of damping force.The utility model scheme makes the vehicle suspension vibration damper self have the relative velocity sensing function, avoided the relative velocity sensor directly to be exposed among the abominable operate outside environment between vehicle body and the vehicle bridge and the working sensor decreased performance that the various external environments that are subjected to (as mechanical collision, infiltration oil impregnate etc.) are disturbed and may be caused, thereby improve the anti-external environmental interference ability of relative velocity sensor, the vibration control effect of enhancement controller, guarantee and improve the functional reliability and the stability of suspension system on the whole, prolong the working life of system.
5. the structure and material of the dust-proof cover of disclosed vibration damper can be selected configuration flexibly according to practical situations in the utility model, the material of dust-proof cover can be rubber or metal, thereby overcomes in people's such as Thomas the patent dust-proof cover as the part of work magnetic circuit and essential and material must be the application limitation of metal magnetic conducting material.
Description of drawings
Fig. 1 is the part sectioned view of a kind of example structure schematic representation of the present utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is that (main flux of relative velocity autobiography sensor is at a time at the inner formation work of vibration damper magnetic loop schematic representation during the alternating voltage signal of 1KHz～40KHz) when the field coil two ends of giving Fig. 1 embodiment load an intermediate frequency.
Embodiment
Describe concrete structure of the present utility model in detail below in conjunction with accompanying drawing:
With reference to Fig. 1, Fig. 2, this vehicle suspension vibration damper mainly comprises cylinder body 15 and is contained in the field coil 25 on the interior liquid 35 of cylinder body, piston rod 7, piston head 18, dust-proof cover 6, the piston, the parts such as inductor coil 10 in the piston rod.The cylinder body of vibration damper mainly is made of the cylinder barrel 16 of high permeability and the lower end cap 33 of upper end cap 14 and utmost point low permeability, and lower end cap 33 is provided with connection set 34, is used to connect vehicle body or vehicle bridge.The piston rod 7 of vibration damper is processed to form by low-permeability material, and the piston rod outer end is provided with suspension ring connection set 1 and is used to connect vehicle body or vehicle bridge.Piston rod 7 the insides are hollow tubular structure, and a solid wire winding rod 11 of high magnetic conduction is housed, and are provided with sealing compound envelope 36,37 at the two ends of wire winding rod.Even coiling one electromagnetic coil on the wire winding rod 11, as the inductor coil 10 of relative velocity sensor, the lead-in wire 5 of inductor coil connects external signal pre-process circuits 4 by the hollow tubular structure part 8 of piston rod.The piston head 18 of vibration damper is enclosed within the inner one side of piston rod 7, and is fixedly connected on the piston rod by the packing ring 29 and the locking nut 30 of utmost point low permeability.The piston head 18 of vibration damper is the cylinder I-shape construction, be formed with cylinder convex step 27, the piston head 18 with high permeability is at pressing line disk 23, cylinder convex step 27, packing ring 29 and locking nut 30 that utmost point low permeability is housed successively near the less end of piston rod external diameter.Even coiling one electromagnetic coil in the groove of the piston head of cylinder I-shape construction, as the field coil 25 of the relative velocity sensor in the utility model, the lead-in wire of field coil 2 is connected outside excitation signal source 3 by the hollow tubular structure part 8 of aperture 19 on the breach 21 on the pressing line disk 23, wire casing ditch 20, the piston rod and piston rod.Outer surface and lead-in wire thereof at inductor coil 10 and field coil 25 all scribble insulation glue-line 9,24 on every side.Piston head is divided into active chamber 17 and 31 two parts of following active chamber to cylinder body 15, and two active chambers all are loaded with liquid 35 up and down, and the sidewall of cylinder body lower end is provided with the attachment hole 32 that is used to connect outside automatically controlled orifice valve, and is provided with a plurality of throttle orifices 22 on piston head.In order to ensure the sealing of vibration damper, all adopt O RunddichtringO 13,26 in the joint of piston, piston rod, cylinder body and cylinder barrel.During Vehicular vibration, the vehicle body of vehicle and vehicle bridge generation relative movement make the piston of vibration damper and piston rod produce with motion to axial frequently with respect to cylinder body, the piston of axial motion by the throttle orifice on the piston head 22, cylinder side wall attachment hole 32 and the outside automatically controlled orifice valve (not providing among the figure) that links to each other with attachment hole 32 make between the accumulator (comprising liquid container and nitrogen chamber) that liquid do not provide among active chamber 17 and following active chamber 31 and the figure on cylinder body mobile back and forth, throttle orifice 22 on the piston head and automatically controlled orifice valve realization damping vibration attenuation.Movement velocity to axial between the outside detected piston rod 7 of electric control device (not providing among the figure) relative velocity autobiography sensor that provide according to the utility model and that existing damper structure is integrated, piston head 18 and the cylinder body 7, the flow of the switching program control liquid of the automatically controlled orifice valve that real-time regulated links to each other with attachment hole 32 is realized half initiatively self adaptive control of suspension damping power.Wherein, contents such as the concrete controlling device of the concrete structure of vibration damper itself, damping force and electric control device can obtain in the correlation technique data of the controlled semi-active vehicle suspension system of existing damping force (as motorcycle, automobile, train etc.), these contents and this vibration damper are used, so do not provide relevant accompanying drawing and detailed elaboration thereof.The content of setting forth according to the utility model can realize the utility model at an easy rate on the damper structure basis of existing this class suspension system simultaneously.
With reference to Fig. 3, (during the alternating voltage signal of 1KHz～40KHz), the same frequency alternating magnetic field that its produces will be at the air gap 28 formation closed magnetic loops 38 between the convex step of upper end cap 14, cylinder barrel 16, cylinder barrel and the piston of the air gap 12 between the convex step 27 of piston head, the upper end cap 14 of wire winding rod 11, piston rod and cylinder body in the piston rod, cylinder body when circuit turn-on, the field coil two ends in excitation signal source load an intermediate frequency in the present embodiment.Most magnetic flux in the magnetic field that field coil produced form the main flux in this magnetic field by this magnetic circuit, and make inductor coil produce together alternating voltage signal frequently, and the amplitude of excitation signal directly determines the size of magnetic flux in the magnetic loop.The Magnetic leakage flux that also has minute quantity at positions such as air gap 12,28, piston rod 7, piston head 18 and cylinder bodies 15 simultaneously and since this Magnetic leakage flux compare with the main flux of magnetic loop very little, so ignore.
The working principle of this vibration damper is as follows:
When Vehicular vibration, piston rod 7, piston head 18 produce the axial relative movement identical with vibration frequency with respect to cylinder body 15, between the cylinder barrel 16 and piston head 18 of vibration damper, adopt Spielpassung between upper end cap 14 and the piston rod 7, make that the air gap 12,28 between them remains unchanged substantially.Because most magnetic resistance of magnetic loop concentrate on these air gaps, air gap is constant substantially when Vehicular vibration makes the magnetic resistance in the magnetic loop remain unchanged substantially, and remaining unchanged substantially of magnetic resistance makes the magnetic flux in the magnetic loop remain unchanged substantially.Do in the drawing process at the piston of vibration damper, piston rod stretches out cylinder body gradually, make the coil turn of inductor coil 10 in magnetic loop of piston rod the inside correspondingly reduce, because magnetic resistance and magnetic flux remains unchanged substantially in the magnetic loop, the minimizing of inductor coil number of turn in magnetic field will cause that its magnetic linkage also reduces thereupon, because electromagnetic induction effect, make that the amplitude of original intermediate frequency alternating voltage signal also begins to reduce gradually thereupon in the inductor coil: same, do in the compression process at the piston of vibration damper, the coil turn of inductor coil 10 in magnetic loop of piston rod the inside correspondingly increases, magnetic resistance and magnetic flux remain unchanged equally in the magnetic loop, magnetic linkage of induction also increases thereupon like this, makes that the amplitude of the intermediate frequency alternating voltage signal of original 1KHz～40KHz begins again to increase in the inductor coil; Simultaneously since piston rod stretch out or enter the frequency of the speed of cylinder body much smaller than intercarrier signal, so the induced voltage signal on the inductor coil will become a double-side band amplitude-modulated signal, the am signals of this amplitude-modulated signal is consistent with the Changing Pattern of magnetic linkage, and the carrier signal of this amplitude-modulated signal then is the intermediate frequency alternating voltage signal of original 1KHz～40KHz.This amplitude-modulated signal is sent vibration damper by the lead-in wire of inductor coil, through obtaining and the consistent am signals of inductor coil magnetic linkage Changing Pattern behind the pre-process circuits such as outside signal frequency-selecting amplification, demodulation, filtering.Like this, electric control device just can in real time, accurately obtain speed of related movement between vehicle body and the vehicle bridge by analyzing this voltage output signal, make existing vehicle suspension vibration damper, especially the vibration damper of the controlled semi-active vehicle suspension system of damping force not only has the damping vibration attenuation function, also have the relative velocity self-sensing function between vehicle body and the vehicle bridge, further realize the self-adaptive damping vibration damping of vehicle suspension.
Claims (4)
1. vehicle suspension vibration damper, comprise cylinder body and be contained in the interior liquid of cylinder body, piston rod and connection piston head, upper end cap, lower end cap and seal ring thereon, the upper end cap of cylinder body has dust-proof cover outward, piston head is divided into two active chambers up and down to cylinder body, liquid flows between two active chambers back and forth by damping hole on the piston head and the orifice valve that is connected with vibration damper, has connection set to be connected with the vehicle body or the vehicle bridge of vehicle on piston rod outer end and the cylinder body lower end cap; It is characterized in that: coiling one electromagnetic coil on the described piston head, as the field coil of relative velocity sensor, the lead-in wire of field coil connects outside excitation signal source; Piston rod adopts hollow tubular structure, and a wire winding rod is equipped with in the inside, and on wire winding rod even coiling one electromagnetic coil, as the inductor coil of relative velocity sensor, the lead-in wire of inductor coil connects the external signal pre-process circuit; Outer surface and lead-in wire thereof at field coil and inductor coil all scribble the insulation glue-line on every side; The piston rod of vibration damper, cylinder barrel lower end cap adopt extremely low permeability magnetic material, and wire winding rod, cylinder barrel and upper end cap in the piston head, piston rod all adopt high permeability material; Between cylinder barrel and the piston head, adopt Spielpassung between upper end cap and the piston rod.
2. vehicle suspension vibration damper according to claim 1, it is characterized in that: described piston head adopts the cylinder I-shape construction, field coil evenly is wound in the I-shaped groove, there is the pressing line disk of the utmost point low permeability upper end of piston head, have the breach that the lead-in wire that holds field coil passes on it, the lower end of piston head is fixedly connected on the piston rod by the packing ring and the locking nut of utmost point low permeability.
3. vehicle suspension vibration damper according to claim 1 and 2 is characterized in that: the excitation signal source that field coil connects is a voltage of intermediate frequency signal source, as the carrier signal of relative velocity sensor.
4. vehicle suspension vibration damper according to claim 1 and 2 is characterized in that: the wire winding rod two ends are provided with the sealing compound envelope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060203 CN2708034Y (en) | 2004-07-07 | 2004-07-07 | Vibration damper for vehicle suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060203 CN2708034Y (en) | 2004-07-07 | 2004-07-07 | Vibration damper for vehicle suspension |
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| Publication Number | Publication Date |
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| CN2708034Y true CN2708034Y (en) | 2005-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420060203 Expired - Lifetime CN2708034Y (en) | 2004-07-07 | 2004-07-07 | Vibration damper for vehicle suspension |
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| CN (1) | CN2708034Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344472C (en) * | 2004-07-07 | 2007-10-24 | 重庆大学 | Vehicle suspension vibration damper with relative velocity self-sensing function |
| CN101936362A (en) * | 2010-08-23 | 2011-01-05 | 扬州市开发区三特轻工机械厂 | Shock absorber |
| CN101693439B (en) * | 2005-10-26 | 2012-02-15 | 丰田自动车株式会社 | Suspension system for vehicle |
| CN103277447A (en) * | 2008-06-05 | 2013-09-04 | 坦尼科汽车操作有限公司 | Nested check high speed valve |
| CN103552451A (en) * | 2013-11-08 | 2014-02-05 | 上海中科力帆电动汽车有限公司 | Damping contact structure for replacing battery pack |
| CN103953679A (en) * | 2014-04-28 | 2014-07-30 | 浙大新剑（上海）智能技术有限公司 | Double-rod magnetorheological damper piston assembly and manufacturing method thereof |
| CN104695577A (en) * | 2013-12-06 | 2015-06-10 | 贵州省交通规划勘察设计研究院股份有限公司 | Liquid viscoelastic damper |
| CN108725121A (en) * | 2018-07-26 | 2018-11-02 | 西南交通大学 | A kind of permanent magnetism and electromagnetism are crosslinked the energy active suspension actuator of electric of floating type |
| CN113474232A (en) * | 2018-12-20 | 2021-10-01 | 安沃驰有限责任公司 | Valve device and method for adjusting the air suspension level of a rail vehicle |
| CN117734363A (en) * | 2023-12-28 | 2024-03-22 | 常熟理工学院 | Vehicle braking force enhancing device and vehicle suspension |
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2004
- 2004-07-07 CN CN 200420060203 patent/CN2708034Y/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344472C (en) * | 2004-07-07 | 2007-10-24 | 重庆大学 | Vehicle suspension vibration damper with relative velocity self-sensing function |
| CN101693439B (en) * | 2005-10-26 | 2012-02-15 | 丰田自动车株式会社 | Suspension system for vehicle |
| CN103277447B (en) * | 2008-06-05 | 2015-05-13 | 坦尼科汽车操作有限公司 | Nested check high speed valve |
| CN103291823B (en) * | 2008-06-05 | 2015-08-19 | 坦尼科汽车操作有限公司 | Nested check high speed valve |
| CN103291823A (en) * | 2008-06-05 | 2013-09-11 | 坦尼科汽车操作有限公司 | Nested check high speed valve |
| CN102057180B (en) * | 2008-06-05 | 2014-01-29 | 坦尼科汽车操作有限公司 | Nested check high speed valve |
| CN103277447A (en) * | 2008-06-05 | 2013-09-04 | 坦尼科汽车操作有限公司 | Nested check high speed valve |
| CN101936362A (en) * | 2010-08-23 | 2011-01-05 | 扬州市开发区三特轻工机械厂 | Shock absorber |
| CN103552451A (en) * | 2013-11-08 | 2014-02-05 | 上海中科力帆电动汽车有限公司 | Damping contact structure for replacing battery pack |
| CN103552451B (en) * | 2013-11-08 | 2016-09-14 | 上海中科力帆电动汽车有限公司 | The damping structure of contact terminal changed for battery bag |
| CN104695577A (en) * | 2013-12-06 | 2015-06-10 | 贵州省交通规划勘察设计研究院股份有限公司 | Liquid viscoelastic damper |
| CN103953679A (en) * | 2014-04-28 | 2014-07-30 | 浙大新剑（上海）智能技术有限公司 | Double-rod magnetorheological damper piston assembly and manufacturing method thereof |
| CN108725121A (en) * | 2018-07-26 | 2018-11-02 | 西南交通大学 | A kind of permanent magnetism and electromagnetism are crosslinked the energy active suspension actuator of electric of floating type |
| CN108725121B (en) * | 2018-07-26 | 2023-06-13 | 西南交通大学 | Permanent magnet and electromagnetic cross-linked suspension type energy feedback type active suspension actuator |
| CN113474232A (en) * | 2018-12-20 | 2021-10-01 | 安沃驰有限责任公司 | Valve device and method for adjusting the air suspension level of a rail vehicle |
| CN113474232B (en) * | 2018-12-20 | 2023-11-10 | 安沃驰有限责任公司 | Valve device and method for adjusting the air suspension level of a rail vehicle |
| CN117734363A (en) * | 2023-12-28 | 2024-03-22 | 常熟理工学院 | Vehicle braking force enhancing device and vehicle suspension |
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