CN101349316B - Sensing load damp-changing or controllable sensing load damp-changing shock mitigation system - Google Patents
Sensing load damp-changing or controllable sensing load damp-changing shock mitigation system Download PDFInfo
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- CN101349316B CN101349316B CN 200810135048 CN200810135048A CN101349316B CN 101349316 B CN101349316 B CN 101349316B CN 200810135048 CN200810135048 CN 200810135048 CN 200810135048 A CN200810135048 A CN 200810135048A CN 101349316 B CN101349316 B CN 101349316B
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- 230000035939 shock Effects 0.000 title claims abstract description 42
- 230000000116 mitigating effect Effects 0.000 title abstract description 15
- 238000013016 damping Methods 0.000 claims abstract description 116
- 239000000725 suspension Substances 0.000 claims description 49
- 238000010521 absorption reaction Methods 0.000 claims description 25
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 3
- 239000006096 absorbing agent Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000001145 hydrido group Chemical class *[H] 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The invention relates to a load sensing variable damping or a controllable load sensing variable damping shock mitigation system, which is adaptable for air or oil gas hanger brackets (including semi-active hanger brackets) for various vehicles with the damping varying with loading and driving conditions. The shock mitigation system arranges a loading sensing variable damping valve or a controllable load sensing variable damping with a special structure on an air or oil gas hanger bracket, thereby realizing enabling a flowing damp of air or oil gas to automatically change along with loading, or enabling the flowing damp of air or oil gas to automatically change along with loading or to be controlled by signals emitted by a switch or a running state sensor of a driver, thereby realizing the adjustment to the damp. Compared with the internal resistance shock absorber of the traditional air or oil gas hanger bracket, the shock mitigation system has the advantages that the damp not only can automatically change along with the loading, but also can be adjusted along with external controlling signals ( driver's intention or moving state), compared with the air hanger bracket which is usually equipped with an independent shock absorber, the shock mitigation system has the advantages of simple structure, low cost and long service life.
Description
Technical field
The present invention relates to the internal damping control technique of fluid suspension.Utilize present technique need not add vibration damper parts independently and can realize the control of suspension damping.Be applicable on the air that needs the various vehicles that damping changes with the situation of travelling, the hydro pneumatic suspension (comprising semi-active suspension).
Background technique
Vehicle changes the requirement meeting of the damping power of the shock mitigation system variation with running condition such as load, condition of road surface, the speed of a motor vehicle, longitudinal acceleration, side acceleration, normal accelerations, simultaneously also can be different because of the difference of driver's personality trend.When running condition changes, or when having the damping of adjusting damping to need, shock mitigation system that usually can not corresponding adjusting damping intensity is difficult to reach gratifying damping effect, and vehicle riding comfort is affected.Controllable sensing load proposed by the invention becomes the damping shock absorption system, compare with the internal damping system of hydro pneumatic suspension with existing air suspension, have damping and both can change automatically with load, also the characteristics that can regulate with external control signal (driver intention or motion state).Compare with the air suspension of the independent vibration damper of common device, have simple in structure, the characteristics that cost is low and the life-span is long.
Summary of the invention
Novel suspension shock mitigation system proposed by the invention comprises for the shock mitigation system of air suspension and is used for the shock mitigation system of hydro pneumatic suspension.These two kinds of shock mitigation systems respectively have two kinds of control modes again: a kind ofly control its damping size " sense carry become a damping mode " automatically by suspension load, another kind is not only by the control but also control " the controllable sensing load change damping mode " of its damping size by adding electrical signal automatically of suspension load.Described air suspension and hydro pneumatic suspension shock mitigation system are to become orifice valve or controllable sensing load change orifice valve by adopted the sense of special construction to carry at described suspension, thereby have formed adaptive damping shock mitigation system of the present invention.The air suspension sense is carried and is become the damping shock absorption system and carried by pneumatic spring, auxiliary tank and sense and become orifice valve and form.The hydro pneumatic suspension sense is carried and is become the damping shock absorption system and carried by hydro-pneumatic spring, accumulator and sense and become orifice valve and form.Sense is wherein carried to become on the orifice valve and can be set up controllable electromagnetic valve, forms controllable sensing load and becomes orifice valve, forms air suspension accordingly and becomes the damping shock absorption system with controllable sensing load change damping shock absorption system and hydro pneumatic suspension with controllable sensing load.
Description of drawings
Fig. 1 carries for the air suspension sense and becomes the damping shock absorption system
Fig. 2 carries the change orifice valve for the air suspension sense
Fig. 3 is for replacing the sense of seal ring to carry the change orifice valve with seal membrane
Fig. 4 carries the fundamental diagram that becomes damped system for sense
Fig. 5 carries the change damped system for the hydro pneumatic suspension sense
Fig. 6 carries the change damped system for the hydro pneumatic suspension sense
Fig. 7 becomes damped system for the air suspension controllable sensing load
Fig. 8 becomes orifice valve for the air suspension controllable sensing load
Fig. 9 becomes damped system for the hydro pneumatic suspension controllable sensing load
Figure 10 becomes orifice valve for the hydro pneumatic suspension controllable sensing load
Figure 11 carries the change damped system for the hydro pneumatic suspension sense
Figure 12 becomes damped system for the hydro pneumatic suspension controllable sensing load
Embodiment
Air suspension carries with sense and becomes the damping shock absorption system, as shown in Figure 1, carries the change orifice valve by pneumatic spring, auxiliary tank and sense and forms.Feel year concrete structure of change orifice valve as shown in Figure 2, the A chamber that the change orifice valve is carried in sense is communicated with pneumatic spring, and the B chamber is communicated with auxiliary tank.A sense year change orifice valve is made up of damping spool 3, first seal ring 4, one-way valve return spring 5, one-way valve 6, valve body 7, check-valve port 8, second seal ring 9, control spring 10 and valve gap 11.
First seal ring 4 that sense is carried in the orifice valve can replace with seal membrane, and as shown in Figure 3, the advantage of this replacement is the frictional force that can reduce seal ring, improves the sensitivity of load control.
The characteristics that air suspension shown in Figure 1 carry to become the damping shock absorption system with sense are that the damping of airsuspension system is not produced by vibration damper independently, but carry and become that orifice valve produces by being installed on sense special between pneumatic spring and the auxiliary tank.
Air suspension is with feeling year working principle of change damped system as shown in Figure 4:
When pneumatic spring was unloaded, the pressure in A chamber was less, and control spring 10 will be controlled spool 3 and push away downwards, and the circulation area of throttle orifice is in maximum (resistance minimum) position; When the pneumatic spring heavy duty, the pressure in A chamber is bigger, and pressure will be controlled spool and upwards push away, and the circulation area of throttle orifice is subjected to the screening of valve body to be worked as, and is in the damping maximum position.When compression stroke, compressed air flows into auxiliary tank by one-way valve 6 and the variable cross section valve port of controlling the through hole in the spool 3 and drive in the side.At this moment aisle spare is very big, and circulating resistance is very little.When pneumatic spring is upheld, one-way valve 6 is closed, and the air pressure in the auxiliary tank (being higher than the heavy air pressure of pneumatic spring) flows into pneumatic spring by variable cross section valve port and the through hole of driveing in the spool 3 in the side, because the throttling of variable cross section valve port, system produces corresponding damping.Because the air pressure that acts on the spool cross-sectional area and the state of equilibrium of control spring 10 compressive forcees are depended in the position of control spool 3, along with load increases, pneumatic spring air pressure increases, and moves on the spool 3, turns down throttle orifice, thereby damping is increased.Suitably the shape of design spool 3 lateral openings and big I reach the desired desirable damping of different loads.
On all four sense is carried the change orifice valve and be can be used for hydro-pneumatic suspension system, thereby form hydro pneumatic suspension and carry change damping shock absorption system (as Fig. 5 with sense, shown in Figure 6), this shock mitigation system is by hydro-pneumatic spring, accumulator and sense are carried and are become the orifice valve composition, sense is carried the A chamber that becomes orifice valve and is communicated with hydro-pneumatic spring, the B chamber is communicated with accumulator, sense is carried orifice valve by damping spool 3, first seal ring 4, one-way valve return spring 5, one-way valve 6, valve body 7, check-valve port 8, second seal ring 9, control spring 10 and valve gap 11 are formed, the position of damping spool 3 is subjected to the control of hydro-pneumatic spring internal pressure size, and this shock mitigation system can obtain the desirable damping that changes with load (spring oil cylinder internal pressure).
If carry on the change orifice valve in the sense that air suspension shown in Figure 2 is used, add the electromagnetic coil (as Fig. 7, shown in Figure 8) of a cover control valve element position, can form controllable sensing load and become orifice valve, this valve is used in can form the controllable sensing load change damping shock absorption system that air suspension is used on the air suspension.Air suspension becomes the damping shock absorption system with controllable sensing load to be made up of pneumatic spring, auxiliary tank and controllable sensing load change orifice valve, and the feature of this system is the control that the position of damping spool both had been subjected to the pneumatic spring internal air pressure, also is subjected to the control of solenoid valve 2 suction simultaneously.The automatic variation characteristic, can also be controlled by the electrical signal of driver's will or motion state with load except having damping.Controllable sensing load becomes orifice valve (as shown in Figure 8) and is made up of solenoid valve lead 1, solenoid valve 2, damping spool 3, first seal ring 4, one-way valve return spring 5, one-way valve 6, valve body 7, check-valve port 8, second seal ring 9, control spring 10 and valve gap 11.Solenoid valve suction is subjected to switch motion that the driver arranges and the control of driving conditions signal.Owing to have the automatical control system of controlling resistance more flexibly, it can realize that opposing rolls and the first-class function of brake point.
Also the formed controllable sensing load of electromagnetic coil that has added a cover control valve element position can be become orifice valve and be applied on the hydro pneumatic suspension, become damping shock absorption system (as Fig. 9, shown in Figure 10) thereby constitute hydro pneumatic suspension with controllable sensing load.This hydro pneumatic suspension becomes the damping shock absorption system by hydro-pneumatic spring with controllable sensing load, accumulator and controllable sensing load orifice valve are formed, the controllable sensing load orifice valve is by solenoid valve lead 1, solenoid valve 2, damping spool 3, first seal ring 4, one-way valve return spring 5, one-way valve 6, valve body 7, check-valve port 8, second seal ring 9, control spring 10 and valve gap 11 are formed, it is characterized in that: the position of damping spool 3 both had been subjected to the control of hydro-pneumatic spring internal pressure, also be subjected to simultaneously the control of solenoid valve 2 suction, solenoid valve suction is subjected to switch motion that the driver arranges and the control of driving conditions signal.Compare with Fig. 5, hydro-pneumatic suspension system shown in Figure 6, it is except having damping changes automatically with spring load, can also be controlled by driver's will or the electrical signal that characterizes motion state of automobile.Because fluid has incompressibility preferably, the semi-active suspension that its easier realization is controlled by motion state of automobile.
Figure 11 shows that the integrated type sense carries sense that hydro-pneumatic spring uses and carry and become the damping shock absorption system, carry an orifice valve by hydro-pneumatic spring oil cylinder 21, piston 22, auxiliary tank 23 and sense and form.Hydro-pneumatic spring oil cylinder 21, auxiliary tank 23 and sense are carried orifice valve and are linked to be an integral body, without pipeline connection.A sense year orifice valve is made up of damping spool 13, seal ring 14, control spring 18, guide finger 19.It is characterized in that: the position of damping spool 13 is subjected to the control of A chamber (a hole) pressure in the hydro-pneumatic spring.The effect of guide finger 19 is the damping spool to be risen prevent the positioning action of rotating.The balance each other size of the circulation area that determined a hole and b hole of oil liquid pressure on the damping spool and control spring power changes system damping.When oil pressure surpassed limit value, damping spool 13 outer moving above certain-length were opened c hole and d hole, and system produces the off-load effect.
Figure 12 shows that the integrated type sense carries sense that hydro-pneumatic spring uses and carry and become the damping shock absorption system, formed by hydro-pneumatic spring oil cylinder 21, piston 22, auxiliary tank 23 and controllable sensing load orifice valve.Hydro-pneumatic spring oil cylinder 21, auxiliary tank 23 and controllable sensing load orifice valve are linked to be an integral body, without pipeline connection.The controllable sensing load orifice valve is made up of solenoid valve lead 15, solenoid valve 12, damping spool 13, seal ring 14, control spring 18, guide finger 19.The effect of guide finger 19 is the damping spool to be risen prevent the positioning action of rotating.It is characterized in that: the position of damping spool 13 both had been subjected to the control of hydro-pneumatic spring internal air pressure, also was subjected to simultaneously the control of solenoid valve 12 suction, and solenoid valve suction is subjected to switch motion that the driver arranges and the control of driving conditions signal.When oil pressure surpassed limit value, damping spool 13 outer moving above certain-length were opened c hole and d hole, and system produces the off-load effect.
Claims (9)
1. air suspension carries with sense and becomes the damping shock absorption system, by pneumatic spring, auxiliary tank and sense are carried and are become the orifice valve composition, sense is carried the A chamber that becomes orifice valve and is communicated with pneumatic spring, the B chamber is communicated with auxiliary tank, sense is carried and is become orifice valve by damping spool (3), first seal ring (4), one-way valve return spring (5), one-way valve (6), valve body (7), check-valve port (8), second seal ring (9), control spring (10) and valve gap (11) are formed, damping spool (3) is embedded in the through hole in the valve body (7), and can move up and down with respect to valve body (7), first seal ring (4) places between damping spool (3) and the valve body (7), second seal ring (9) places between one-way valve (6) and the valve body (7), one-way valve (6) places damping spool (3) outside, one-way valve return spring (5) one ends link to each other with one-way valve (6), the other end is connected on the valve body (7), control spring (10) one ends link to each other with damping spool (3), the other end is connected on the valve gap (11), valve gap (11) is connected with valve body (7), and it is characterized in that: the position of damping spool is subjected to the control of pneumatic spring internal air pressure.
2. the described sense of claim 1 is carried and is become the damping shock absorption system, the upper end closed of damping spool (3), and the lower end perforate communicates with the B chamber, and the variable cross section port has been cut in the centre, changes and the circulation area in B chamber with the position of damping spool (3) is different.
3. the described sense of claim 1 is carried and is become the damping shock absorption system, and it is characterized in that: first seal ring (4) of damping spool replaces with seal membrane.
4. the controllable sensing load used of air suspension becomes the damping shock absorption system, by pneumatic spring, auxiliary tank and controllable sensing load orifice valve are formed, the controllable sensing load orifice valve is by solenoid valve lead (1), solenoid valve (2), damping spool (3), first seal ring (4), one-way valve return spring (5), one-way valve (6), valve body (7), check-valve port (8), second seal ring (9), control spring (10) and valve gap (11) are formed, solenoid valve lead (1) links to each other with solenoid valve (2), solenoid valve (2) places between valve gap (11) and the valve body (7), and can under "on" position, apply suction to damping spool (3), damping spool (3) is embedded in the through hole in the valve body (7), and can move up and down with respect to valve body (7), first seal ring (4) places between damping spool (3) and the valve body (7), second seal ring (9) places between one-way valve (6) and the valve body (7), one-way valve (6) places damping spool (3) outside, one-way valve return spring (5) one ends link to each other with one-way valve (6), the other end is connected on the valve body (7), control spring (10) one ends link to each other with damping spool (3), the other end is connected on the valve gap (11), valve gap (11) is connected with valve body (7), it is characterized in that: the position of damping spool (3) both had been subjected to the control of pneumatic spring internal air pressure, also be subjected to simultaneously the control of solenoid valve (2) suction, solenoid valve suction is subjected to switch motion that the driver arranges and the control of driving conditions signal.
5. hydro pneumatic suspension carries with sense and becomes the damping shock absorption system, by hydro-pneumatic spring, accumulator and sense are carried and are become the orifice valve composition, sense is carried the A chamber that becomes orifice valve and is communicated with hydro-pneumatic spring, the B chamber is communicated with accumulator, sense is carried orifice valve by damping spool (3), first seal ring (4), one-way valve return spring (5), one-way valve (6), valve body (7), check-valve port (8), second seal ring (9), control spring (10) and valve gap (11) are formed, damping spool (3) is embedded in the through hole in the valve body (7), and can move up and down with respect to valve body (7), first seal ring (4) places between damping spool (3) and the valve body (7), second seal ring (9) places between one-way valve (6) and the valve body (7), one-way valve (6) places damping spool (3) outside, one-way valve return spring (5) one ends link to each other with one-way valve (6), the other end is connected on the valve body (7), control spring (10) one ends link to each other with damping spool (3), the other end is connected on the valve gap (11), valve gap (11) is connected with valve body (7), and it is characterized in that: the position of damping spool (3) is subjected to the control of hydro-pneumatic spring internal pressure size.
6. the described sense of claim 5 is carried and is become the damping shock absorption system, the upper end closed of damping spool (3), and the lower end perforate communicates with the B chamber, and the port of variable cross section is cut in the centre, changes and the circulation area in B chamber with the position of damping spool (3) is different.
7. hydro pneumatic suspension becomes the damping shock absorption system with controllable sensing load, by hydro-pneumatic spring, accumulator and controllable sensing load orifice valve are formed, the controllable sensing load orifice valve is by solenoid valve lead (1), solenoid valve (2), damping spool (3), first seal ring (4), one-way valve return spring (5), one-way valve (6), valve body (7), check-valve port (8), second seal ring (9), control spring (10) and valve gap (11) are formed, solenoid valve lead (1) links to each other with solenoid valve (2), solenoid valve (2) places between valve gap (11) and the valve body (7), and can under "on" position, apply suction to damping spool (3), damping spool (3) is embedded in the through hole in the valve body (7), and can move up and down with respect to valve body (7), first seal ring (4) places between damping spool (3) and the valve body (7), second seal ring (9) places between one-way valve (6) and the valve body (7), one-way valve (6) places damping spool (3) outside, one-way valve return spring (5) one ends link to each other with one-way valve (6), the other end is connected on the valve body (7), control spring (10) one ends link to each other with damping spool (3), the other end is connected on the valve gap (11), valve gap (11) is connected with valve body (7), it is characterized in that: the position of damping spool (3) both had been subjected to the control of hydro-pneumatic spring internal pressure, also be subjected to simultaneously the control of solenoid valve (2) suction, solenoid valve suction is subjected to switch motion that the driver arranges and the control of driving conditions signal.
8. hydro pneumatic suspension carries with the integrated type sense and becomes the damping shock absorption system, by hydro-pneumatic spring oil cylinder (21), piston (22), auxiliary tank (23) and sense are carried and are become the orifice valve composition, hydro-pneumatic spring oil cylinder (21), auxiliary tank (23) and sense are carried orifice valve and are linked to be an integral body, without pipeline connection, sense is carried orifice valve by damping spool (13), seal ring (14), control spring (18), guide finger (19), valve gap (11) is formed, damping spool (13) is embedded in the through hole on hydro-pneumatic spring oil cylinder (21) top, and can be with respect to hydro-pneumatic spring oil cylinder (21) side-to-side movement, seal ring (14) places between damping spool (13) and the hydro-pneumatic spring oil cylinder (21), control spring (18) one ends link to each other with damping spool (13), the other end is connected on the valve gap (11), valve gap (11) is connected with hydro-pneumatic spring oil cylinder (21), guide finger (19) is installed between hydro-pneumatic spring oil cylinder (21) and the damping spool (13), it is characterized in that: the position of damping spool (13) is subjected to the control of A chamber air pressure in the hydro-pneumatic spring and the circulation area that changes a hole and b hole changes damping.
9. hydro pneumatic suspension becomes the damping shock absorption system with the integrated type controllable sensing load, by hydro-pneumatic spring oil cylinder (21), piston (22), auxiliary tank (23) and controllable sensing load orifice valve are formed, hydro-pneumatic spring oil cylinder (21), auxiliary tank (23) and controllable sensing load orifice valve are linked to be an integral body, without pipeline connection, the controllable sensing load orifice valve is by solenoid valve lead (15), solenoid valve (12), damping spool (13), seal ring (14), control spring (18), guide finger (19), valve gap (11) is formed, solenoid valve lead (15) links to each other with solenoid valve (12), solenoid valve (12) places between valve gap (11) and the hydro-pneumatic spring oil cylinder (21), and can under "on" position, apply suction to damping spool (13), damping spool (13) is embedded in the through hole on hydro-pneumatic spring oil cylinder (21) top, and can be with respect to hydro-pneumatic spring oil cylinder (21) side-to-side movement, seal ring (14) places between damping spool (13) and the hydro-pneumatic spring oil cylinder (21), control spring (18) one ends link to each other with damping spool (13), the other end is connected on the valve gap (11), valve gap (11) is connected with hydro-pneumatic spring oil cylinder (21), guide finger (19) is installed between hydro-pneumatic spring oil cylinder (21) and the damping spool (13), it is characterized in that: the position of damping spool (13) both had been subjected to the control of hydro-pneumatic spring internal air pressure, also be subjected to simultaneously the control of solenoid valve (12) suction, solenoid valve suction is subjected to switch motion that the driver arranges and the control of driving conditions signal.
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| CN 200810135048 CN101349316B (en) | 2008-07-29 | 2008-07-29 | Sensing load damp-changing or controllable sensing load damp-changing shock mitigation system |
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| CN 200810135048 CN101349316B (en) | 2008-07-29 | 2008-07-29 | Sensing load damp-changing or controllable sensing load damp-changing shock mitigation system |
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| CN101349316B true CN101349316B (en) | 2013-07-10 |
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| CN101818777B (en) * | 2010-05-07 | 2011-08-10 | 华中科技大学 | Self-adaptive damping variable ultra-precise vibration absorber |
| CN101949424B (en) * | 2010-08-31 | 2012-05-02 | 南京常荣噪声控制环保工程有限公司 | Vibration absorber capable of regulating and controlling frequency automatically |
| CN102107683A (en) * | 2011-01-20 | 2011-06-29 | 南京农业大学 | Vibration damping device for cab |
| CN102278403A (en) * | 2011-07-12 | 2011-12-14 | 胡培培 | Air spring system |
| CN103225668B (en) * | 2013-04-02 | 2015-08-26 | 江苏大学 | Mutative damp electromagnetic vibration damping system is carried in a kind of sense |
| CN103195856A (en) * | 2013-04-07 | 2013-07-10 | 南京农业大学 | Parameter variable hydro-pneumatic spring |
| CN105650305B (en) * | 2016-02-24 | 2018-05-08 | 北京亚泰金合机械设备有限公司 | Trimmer valve |
| CN106151357B (en) * | 2016-07-30 | 2018-01-26 | 江苏师范大学 | A kind of rigidity and the active air suspension arrangement of damp adjustable bullet train half |
| ES2796000T3 (en) * | 2017-04-20 | 2020-11-25 | Safran Landing Systems Uk Ltd | Aircraft landing gear shock absorber strut |
| US11156261B2 (en) * | 2018-12-28 | 2021-10-26 | Tenneco Automotive Operating Company Inc. | Damper with multiple external control valves |
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|---|---|---|---|---|
| JP2001158213A (en) * | 1999-09-24 | 2001-06-12 | Kuruuzu:Kk | Suspension device |
| CN1560490A (en) * | 2004-02-19 | 2005-01-05 | 川 郭 | Pressure controlled variable damping vibration attenuator |
| CN1560491A (en) * | 2004-02-19 | 2005-01-05 | 川 郭 | Electrici controlled type variable damping attenuator |
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| CN201240242Y (en) * | 2008-07-29 | 2009-05-20 | 郭孔辉 | Load sensing variable damping or controllable load sensing variable damping shock mitigation system |
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| CN101349316A (en) | 2009-01-21 |
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