CN105840712B - A kind of stepless adjustable power feeding shock absorber of half active - Google Patents
A kind of stepless adjustable power feeding shock absorber of half active Download PDFInfo
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- CN105840712B CN105840712B CN201610403791.1A CN201610403791A CN105840712B CN 105840712 B CN105840712 B CN 105840712B CN 201610403791 A CN201610403791 A CN 201610403791A CN 105840712 B CN105840712 B CN 105840712B
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- shock absorber
- damper
- pump
- chain gear
- gear apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/14—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers accumulating utilisable energy, e.g. compressing air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a kind of stepless adjustable power feeding shock absorber of half active, belong to hydraulic buffer technical field.The present invention compensate for existing shock absorber be difficult take into account damping force it is stepless reconcile suspension vibration energy regenerating the problem of.It is of the invention main by cylinder type damper, pump, stepless speed regulation chain gear apparatus and generating set into.Pressure in cylinder type damper then by stepless speed regulation chain gear apparatus drives to generator as the power resources of pump, by energy regenerating.The present invention realizes the stepless adjustable of damping force by adjusting the gearratio of stepless speed regulation chain gear apparatus, thus can carry out step-less adjustment to damping force according to traveling road conditions and driver's will, it is ensured that each shock absorber is all operated under conditions of optimal damping power.When system breaks down, by closing the failure valve between shock absorber and return line, it is set to become a traditional cylinder type damper, it is to avoid because of damper system failure accident occurs for automobile.
Description
Technical field
The invention belongs to hydraulic buffer technical field.
Background technology
In Hyundai Motor structure, suspension is the essential system of vehicle, and it is all between automobile frame and vehicle bridge
The general name of force transmission connections.Suspension is typically made up of flexible member, guiding mechanism and shock absorber etc..The operation principle of shock absorber
It is the energy using damped motion to be produced in convergent mode of motion, critical component when it is running car can relax faster
Decay road surface brings the vibration of automobile with speed, improves the comfortableness, economy, safety and stability of automobile itself.Due to
The performance of shock absorber is directly connected to the value of automobile, and so that with the fast development of scientific and technological level and economic level, people are to subtracting
Shake device requirement also with regard to more and more higher.
Current cartridge type hydraulic type shock absorber is due to having the advantages that cost is low, long lifespan has obtained making extensively on automobile
With.Because traditional cartridge type hydraulic type shock absorber is passive damper, it is impossible to adjust resistance according to road conditions and the will of driver
Buddhist nun's power, therefore the comfortableness and control stability of automobile is not met.In order to enable the vehicle in control stability and multiply
All accomplish optimal performance in terms of sitting comfortableness, occur in that active and semi-active suspension, both differences are essentially consisted in：Active suspension
A top quality damping force can be obtained in theory, but in order to realize that the dreamboat energy consumption is big, cost is high, and structure is multiple
It is miscellaneous；Semi-active suspension is only made up of without extra power source controllable flexible member or damping element.But regulation elasticity element
Rigidity very high energy to be typically provided, and it is high to implement complicated, cost, therefore the research to semi-active suspension mainly collects for many years
In regulation damping element characteristic on.Semi-active suspension includes discrete switching and continuously adjusts two classes.
Margolis etc. proposed in 1975 " switching regulator ' control semi-active suspension；Toyota Motor company is in 1983
Year develops " switching regulator " semi-active suspension containing three kinds of operating modes, and in Toyota Soare:Applied on 28OGT type cars；Japan
Nissan was equipped with " sonar " formula semi-active suspension in 1988 on Maximas cars first, with " soft ", " moderate "
" stabilization " three kinds of state switchings, these belong to the application of discrete suitching type semi-active suspension.Nineteen nineties with
Afterwards, the research to novel intelligent material has promoted succeeding in developing for continuously adjustabe damper, including throttle diameter regulation and damping
Liquid viscosity adjustment two ways.This patent relate to a kind of stepless adjustable shock absorber of damping force.Damping force regulative mode is different
In shock absorber described above, but the continuously adjustabe of damping force is carried out with the cooperation of generator by a pump housing.
It is becoming tight with the day of world energy sources, the power saving of automobile increasingly attracts attention.Automobile is by road conditions, speed etc.
The influence of many factors, the energy that suspension is dissipated can account for the 10%-40% that engine exports gross energy, be returned using feed energy suspension
Energy reduction vehicle fuel consumption during receipts automobile vibration is the study hotspot of current domestic and foreign scholars.
The content of the invention
The technical problems to be solved by the invention are：It is difficult to take into account the stepless suspension that reconciles of damping force to make up existing shock absorber
The problem of vibration energy regeneration, there is provided a kind of stepless adjustable power feeding shock absorber of half active.
In order to solve the above technical problems, the invention provides a kind of stepless adjustable power feeding shock absorber of half active, being subtracted by cartridge type
Shake device, pump 9, stepless speed regulation chain gear apparatus and generator 21 is constituted.
Cylinder type damper includes shock absorber piston rod 1, shock absorber upper end cover 2, shock absorber cylinder barrel 3, floating piston 4, vibration damping
Device piston 6, trip bolt 7, shock absorber bottom end cover 8；The inner cylinder face of shock absorber cylinder barrel 3 from top to bottom successively with shock absorber upper end cover
2nd, the external cylindrical surface of floating piston 4, damper piston 6 and shock absorber bottom end cover 8 coordinates；Shock absorber upper end cover 2, floating piston 4
Through hole is provided with the center of damper piston 6 to be engaged with shock absorber piston rod 1；Damper piston 6 and shock absorber piston rod 1
Damper piston 6, is fastened on shock absorber piston rod 1 by threaded connection by trip bolt 7.Floating piston 4 is empty by shock absorber
Air cavity 12 is isolated entirely from shock absorber upper chamber 11, damper piston 6 provided with normal open damping hole make shock absorber upper chamber 11 with
The inner fluid of shock absorber lower chambers 10 can circulate；Shock absorber upper end cover 2 is fixed on the upper end of shock absorber cylinder barrel 3, shock absorber bottom end cover 8
It is fixed on the lower end of shock absorber cylinder barrel 3, shock absorber upper end cover 2, shock absorber bottom end cover 8 and the formation sealing structure of shock absorber cylinder barrel 3.
Pump 9 is fixed on immediately below cylinder type damper, has two fluid exchange routes therebetween, one is the upper end two of pump 9
Individual through hole is connected by stretching one-way hydraulic valve 40 and compression one-way hydraulic valve 41 with shock absorber lower chambers 10, and another is pump
The normal open hole of 9 bottoms is connected to shock absorber upper chamber 11 by return line 5.Shock absorber upper chamber 11 and the company of return line 5
Failure valve 42 is crossed all to control.
Stepless speed regulation chain gear apparatus is transmission device, and stepless speed regulation chain gear apparatus side is connected with pump 9, and opposite side is with generating electricity
Machine 21 is connected, and pump 9 is drive device, and generator 21 is driven device.
One of preferred embodiment of the present invention, floating piston 4 includes rubber buffer I 22, sealing ring I 23, floating piston body
24, rubber buffer II 25, sealing ring III 29；Sealing ring III 29 is located at the inside outer wall of floating piston body 24, rubber buffer I 22
It is located at the upper and lower end face of floating piston body 24 respectively with rubber buffer II 25, and is partially embedded into floating piston body 24.
One of preferred embodiment of the present invention, damper piston 6 includes rubber buffer III 26, sealing ring II 27, shock absorber
Piston body 28；Sealing ring II 27 is located at the inside outer wall of damper piston body 28, and rubber buffer III 26 is located at damper piston body
28 upper surface, and be partially embedded into inside damper piston body 28.
One of preferred embodiment of the present invention, stepless speed regulation chain gear apparatus includes chain gear apparatus input shaft 16, drive sprocket 17,
Steel band 18, driven sprocket 19, chain gear apparatus output shaft 20.Steel band 18 links together drive sprocket 17 and driven sprocket 19,
The rotating speed of the two is set to have certain proportionate relationship.
Wherein, drive sprocket 17 mainly includes two parts, i.e. the moveable work wheel 31 in left side and the fixation active wheel on right side
32 compositions, two active wheels are tapered, and steel band 18 can be moved up and down along its conical surface, and moveable work wheel 31 passes through input shaft 16,
And can be horizontally slipped in the presence of hydraulic coupling or electromagnetic force along input shaft 16, fixed active wheel 32 is then fixed to input shaft 16
Right-hand member can not rotate around it.
Driven sprocket 19 mainly includes two parts, i.e. the fixation active wheel 34 in left side and 33 groups of the moveable work wheel on right side
Into the tapered steel band 18 of two active wheels can be moved up and down along its conical surface, and moveable work wheel 33 passes through chain gear apparatus output shaft
20, and can be horizontally slipped in the presence of hydraulic coupling or electromagnetic force along chain gear apparatus output shaft 20, fixed active wheel 34 is then solid
Surely arriving the left end of chain gear apparatus output shaft 20 can not rotate around it.
One of preferred embodiment of the present invention, the pump 9 is preferably vane pump, and vane pump is by vane pump left end cap 13, flat key
14, vane pump right end cap 15, bearing 30 and pump housing composition.The pump housing is wrapped up close by vane pump left end cap 13 and vane pump right end cap 15
Close and, bearing 30 is located inside the right center of vane pump left end cap 13, flat key 14 is used to link the blade pump housing and sprocket wheel dress
Put input shaft 16.
One of preferred embodiment of the present invention, the failure valve 42 is magnetic valve.
One of preferred embodiment of the present invention, the lower regions of failure valve 42 cave inward shock absorber cylinder barrel 3 provided with two
Structure, can prevent floating piston 4 from crossing failure valve 42 and shock absorber air chamber 12 is communicated with return line 5, while also preventing
Only the excessive tensile of damper piston 6, which crosses failure valve 42, makes shock absorber lower chambers 10 be communicated with return line 5.
One of preferred embodiment of the present invention, the upper and lower ends of shock absorber cylinder barrel 3 are provided with ladder blind hole, shock absorber upper end cover 2
The upper end of shock absorber cylinder barrel 3 is fixed on by ladder blind hole, shock absorber bottom end cover 8 is fixed on shock absorber cylinder barrel 3 by ladder blind hole
Lower end.
Beneficial effects of the present invention：
, can be according to traveling road conditions 1. the stepless adjustable power feeding shock absorber of half active of the present invention is compared to conventional damper
And driver's will carries out step-less adjustment to damping force, it is ensured that each shock absorber is all operated under conditions of optimal damping power.
2. the stepless adjustable power feeding shock absorber of half active of the present invention can be with complete using vane pump, chain gear apparatus and motor
The recovery of energy during into suspension vibration, reduction vehicle fuel consumption is economic and environment-friendly.
3. the stepless adjustable power feeding shock absorber of half active of the present invention can meet the stepless of damping force simultaneously and reconcile
Suspension vibration energy regenerating.
4. the stepless adjustable power feeding shock absorber of half active of the present invention, when system breaks down, can close shock absorber
Failure valve between return line, makes it become a traditional cylinder type damper, it is to avoid automobile because of damper system therefore
Hinder and occur unexpected.
5. the stepless adjustable power feeding shock absorber of half active of the present invention, the recovery system of its energy can be with car braking energy
Amount recovery system is integrated, and is applied on electric automobile, improves vehicle economy.
Brief description of the drawings
Fig. 1 is the sectional view of front view of the present invention；
Fig. 2 is the sectional view of side view of the present invention；
Fig. 3 is C-C partial enlarged drawings in the present invention；
Fig. 4 is the sectional view of floating piston and shock absorber piston front view in the present invention；
Fig. 5 is floating piston body top view in the present invention；
Fig. 6 is the sectional view of floating piston body front view in the present invention；
Fig. 7 is the top view of rubber buffer in the present invention；
Fig. 8 is the sectional view of rubber buffer front view in the present invention；
Fig. 9 is the position for stressing chain gear apparatus under the conditions of comfortableness in the present invention；
Figure 10 is the position of the chain gear apparatus under the conditions of control stability is stressed in the present invention；
Figure 11 is the workflow diagram of the present invention；
It is as follows using marking in the figures above：1. shock absorber piston rod, 2. shock absorber upper end covers, 3. shock absorber cylinder barrels, 4.
Floating piston, 5. return lines, 6. damper pistons, 7. trip bolts, 8. shock absorber bottom end covers, 9. vane pumps, 10. shock absorbers
Lower chambers, 11. shock absorber upper chamber, 12. shock absorber air chambers, 13. vane pump left end caps, 14. flat keys, 15. vane pump right-hand members
Lid, 16. chain gear apparatus input shafts, 17. drive sprockets, 18. steel bands, 19. driven sprockets, 20. chain gear apparatus output shafts, 21. hairs
Motor, 22. rubber buffers I, 23. sealing rings I, 24. floating piston bodies, 25. rubber buffers II, 26. rubber buffers III,
27. sealing ring II, 28. damper piston bodies, 29. sealing rings III, 30. bearings, 31. moveable work wheels, 32. fix active wheel,
33. moveable work wheel, 34. fix the stretching one-way hydraulic valve of active wheel 40., 41. compression one-way hydraulic valves, 42. failure magnetic valves.
Embodiment
Technical solution of the present invention is further explained and illustrated with reference to Figure of description.
Embodiment 1
Refering to Fig. 1, Fig. 2, shock absorber piston rod 1 is axial workpiece, is machined with its top and the bottom outside external screw thread, upper end
Screw thread is connected with vehicle body, and lower end external screw thread is connected with damper piston 6 and trip bolt 7, and damper piston 6 is by trip bolt 7
It is tightened in the externally threaded root in the lower end of shock absorber piston rod 1.Shock absorber piston rod 1 subtracts from shock absorber upper end cover 2, floating piston 4
Shaken device piston 6, and the circular through holes of trip bolt 7 are passed through.
Shock absorber upper end cover 2 be disk part by performing, its center be provided with through hole and with the cylindrical outer surface of shock absorber piston rod 1
It is engaged, the inner cylinder face of its external cylindrical surface and shock absorber cylinder barrel 3 is interference fitted.Its lower surface is by the upper end of shock absorber cylinder barrel 3
Flange is pressed on the shoulder hole shoulder of the upper end of shock absorber cylinder barrel 3, plays a part of axially position.
Shock absorber cylinder barrel 3 is tube kind part, and its upper and lower ends is provided with ladder blind hole, and its inner cylinder face is from top to bottom successively
Coordinate with the external cylindrical surface of shock absorber upper end cover 2, floating piston 4, damper piston 6 and shock absorber bottom end cover 8, when assembling is finished
Shock absorber cylinder barrel upper and lower side is done into flange processing afterwards, the upper surface of shock absorber upper end cover 2 is now pressed in after its upper end flange, under it
The lower surface of shock absorber bottom end cover 8 is pressed in after the flange of end.The top of shock absorber cylinder barrel 3 passes through failure magnetic valve 42 and return line 5
It is connected, the failure magnetic valve 42 is normal open valve, is closed after shock absorber failure is detected, the shock absorber is turned into a tradition
Cylinder type damper.Shock absorber cylinder barrel 3 is made into two structures caved inward, the structure in the lower regions of failure magnetic valve 42
Effect be to prevent floating piston 4 from crossing failure magnetic valve 42 and shock absorber air chamber 12 is communicated with return line 5, while also preventing
Only the excessive tensile of damper piston 6, which crosses failure magnetic valve 42, makes shock absorber lower chambers 10 be communicated with return line 5.In other words
Say, the effect of the structure is to ensure that shock absorber upper chamber 11 communicates with return line 5.
Reference picture 4, floating piston 4 is circle ring parts, and its interior bone is engaged with shock absorber piston rod 1, outside cylinder
Face is engaged with the inner cylinder face of shock absorber cylinder barrel 3, and its effect is that shock absorber air chamber 12 and shock absorber upper chamber 11 is complete
Keep apart.
Return line 5 is hollow steel pipe, and its upper port is connected by failure magnetic valve 42 with shock absorber upper chamber 11, its
Lower port keeps normal open with the lower port of vane pump 9, and this structure ensures that the pressure near the lower port of vane pump 9 is equal to shock absorber epicoele
Pressure inside room 11.
Reference picture 4, damper piston 6 is circle ring parts, and its internal whorl through hole is outer with the lower end of shock absorber piston rod 1
Screw thread is engaged, and external cylindrical surface is engaged with the inner cylinder face of shock absorber cylinder barrel 3, and damper piston 6 is tightened in by trip bolt 7
The externally threaded root in the lower end of shock absorber piston rod 1.
Shock absorber bottom end cover 8 is disk part by performing, and it is provided with two through holes, PATENT left side via on along the circumferential direction and is provided with
Stretch and compression one-way hydraulic valve 41 is installed in one-way hydraulic valve 40, right side through hole, the effect of this structure is under certain condition
Connect shock absorber lower chambers 10 and vane pump 9.The external cylindrical surface of shock absorber bottom end cover 8 and the inner cylinder face mistake of shock absorber cylinder barrel 3
It is full of cooperation.Its upper surface is pressed on the shoulder hole shoulder of the lower end of shock absorber cylinder barrel 3 by the lower end flange of shock absorber cylinder barrel 3 and plays axle
To the effect of positioning.
Refering to Fig. 2 and Fig. 3, vane pump 9 is box parts, by vane pump left end cap 13, flat key 14, vane pump right end cap
15th, bearing 30 and pump housing composition, its upper end are provided with two holes, pass through the stretching one-way hydraulic valve 40 and the pressure on right side in left side respectively
Contracting one-way hydraulic valve 41 is connected with shock absorber lower chambers 10.The lower end center of vane pump 9 is provided with a through hole and return line 5
It is connected and is connected eventually through failure magnetic valve 42 with shock absorber upper chamber 11.
Vane pump left end cap 13 and vane pump right end cap 15 are mainly sealed, and shock absorber fluid is firmly enclosed in into leaf
In the piece pump housing, there is a blind hole center of vane pump left end cap 13, and there is a through hole center of vane pump right end cap 15.Bearing 30 is located at
In the central blind hole of vane pump left end cap 13, its internal left end external cylindrical surface with chain gear apparatus input shaft 16 is interference fitted.It is flat
The main function of key 14 is the link blade pump housing and chain gear apparatus input shaft 16, the two is kept synchronous axial system.
Chain gear apparatus input shaft 16 is axial workpiece, and its left end is provided with keyway, is led to through the center of vane pump right end cap 15
Hole is engaged with flat key 14, and its left end is supported on by bearing 30 in the central blind hole of vane pump left end cap 13.Chain gear apparatus
The right-hand member of input shaft 16 and the moveable work wheel 31 through the left side of drive sprocket 17, and it is mutually solid in the fixed active wheel 32 in its right side
It is fixed.
Refering to Fig. 7 and Fig. 8, rubber buffer I 22, rubber buffer II 25 and rubber buffer III 26 are rubber ring
Class part, its section is in " work " font.Wherein the latter half of rubber buffer I 22 is embedded in the groove of the upper surface of floating piston body 24
Interior and be fitted close, it is to prevent floating piston from hitting shock absorber upper end cover 2 that it, which is acted on, plays the effect of buffering.Rubber buffer
The groove of the lower surface of II 25 top halfs insertion floating piston body 24 is interior and is fitted close, and its effect is to prevent floating piston upward
The projection at shock absorber edge is hit, the effect of buffering is played.The latter half of rubber buffer III 26 insertion damper piston body 28
The groove of upper surface is interior and is fitted close, and it is the projection for preventing floating piston from hitting shock absorber edge upwards that it, which is acted on, plays slow
The effect of punching.
Damper piston body 28 is disk part by performing, and its center is machined with through hole, and through-hole inner surface is machined with internal thread, should
Internal thread is engaged with the external screw thread of the lower end of shock absorber piston rod 1, and annular groove and sealing ring II 27 are machined with disk outer wall
Coordinate.Damper piston body 28 is along the circumferential direction evenly equipped with 6 through holes, and upper surface is machined with annular groove at outer wall,
It is engaged respectively with rubber buffer III 26, lower surface is pressed on the lower end thread root of shock absorber piston rod 1 by trip bolt 7.
Refering to Fig. 5 and Fig. 6, floating piston body 24 is disk part by performing, and its center is machined with through hole, through-hole wall and is provided with
Annular groove coordinates with sealing ring III 29, and annular groove is machined with disk outer wall and is coordinated with sealing ring I 23.Floating piston body 24
Upper and lower end face is machined with annular groove at outer wall, is engaged respectively at rubber buffer I 22 and rubber buffer II 25.
Refering to Fig. 9, Figure 10, drive sprocket 17 mainly includes two parts, i.e., on the left of moveable work wheel 31 and right side consolidate
Determine active wheel 32 to constitute, two active wheels are tapered, steel band 18 can be moved up and down along its conical surface, moveable work wheel 31 passes through defeated
Enter axle 16, and can be horizontally slipped in the presence of hydraulic coupling or electromagnetic force along input shaft 16, fixed active wheel 32 is then fixed to
The right-hand member of input shaft 16 can not be rotated around it.
Driven sprocket 19 mainly includes two parts, i.e. the fixation active wheel 34 in left side and 33 groups of the moveable work wheel on right side
Into the tapered steel band 18 of two active wheels can be moved up and down along its conical surface, and moveable work wheel 33 passes through chain gear apparatus output shaft
20, and can be horizontally slipped in the presence of hydraulic coupling or electromagnetic force along chain gear apparatus output shaft 20, fixed active wheel 34 is then solid
Surely arriving the left end of chain gear apparatus output shaft 20 can not rotate around it.
The course of work (Figure 11) is as follows：
Automobile in the process of moving, when run into bump, i.e. vehicle body and wheel close to when, the piston of shock absorber is pressed downward
Fluid in pressure rise in contracting, shock absorber lower chambers 10, the pressure reduction of shock absorber upper chamber 11, shock absorber lower chambers 10 is flowed through
Normal open damping hole on damper piston 6 is flowed into shock absorber upper chamber 11, simultaneously because the lower through-hole of vane pump 9 and shock absorber
Upper chamber 11 keeps normal open therefore the two pressure is identical, and pressure is higher than vane pump 9 in shock absorber lower chambers 10, therefore compresses one-way hydraulic
Valve 41 is opened, and stretching one-way hydraulic valve 40 is closed.Pressure at the inside of vane pump 9 is higher than bottom through-hole, and now vane pump 9 is in oil
Clockwise flow gets up in the presence of pressure, and the fluid in shock absorber lower chambers 10 flows into shock absorber upper chamber 11 by vane pump 9
In.
Automobile in the process of moving, when run into road surface depression, i.e. vehicle body and wheel away from when, the piston of shock absorber is relative to be subtracted
The device cylinder barrel that shakes is pulled up, and pressure is reduced in shock absorber lower chambers 10, the pressure rise of shock absorber upper chamber 11, shock absorber upper chamber
The normal open damping hole that fluid in 11 is flowed through on damper piston 6 is flowed into shock absorber lower chambers 10, simultaneously because under vane pump 9
Portion's through hole keeps normal open with shock absorber upper chamber 11 therefore the two pressure is identical, and pressure is less than vane pump 9 in shock absorber lower chambers 10,
Therefore stretching one-way hydraulic valve 40 is opened, compression one-way hydraulic valve 41 is closed.Pressure at the inner tensile one-way hydraulic valve 40 of vane pump 9
Power is less than bottom through-hole, and now the clockwise flow in the presence of oil pressure of vane pump 9 gets up, the fluid in shock absorber upper chamber 11
Flowed into by vane pump 9 in shock absorber lower chambers 10；
The electricity generating principle of generator 21：The rotation of the center rotor of generator 21 is driven by the rotation of chain gear apparatus output shaft 20
Turn, producing electric current by cutting magnetic induction line principle charges a battery.From electromagnetic induction principle, chain gear apparatus output shaft 20
The faster generator magnetic flux change rotated is bigger therefore opposing torque T2 that produce is bigger, if by the defeated of vane pump 9
Shaft 16 is directly connected with the input shaft of generator, then the rotating speed of generator 21 is equal to the rotating speed of vane pump 9, if leading to therebetween
Cross stepless time adjustment device to be connected, then can increase or reduce the rotating speed of generator 21, you can with the opposing torque to generator 21
T2 is increased or reduced.
Realize the stepless adjustable principle of damping force：
Fluid is very big by the damping force of damper piston damping hole, the big I of damping force that fluid passes through vane pump 9
Adjust, and less than the damping force of damping hole.Damping force in the present invention it is stepless it is adjustable refer to adjusting flow through fluid in vane pump 9
Damping force, now directly affects the ratio that fluid inside shock absorber flows through different circuit, and the resistance that fluid is subject in different circuit
Buddhist nun's power is also differed, so as to play a part of adjusting resistance of shock absorber.The stepless speed regulation of the present invention needs to coordinate vehicle body acceleration
Sensor, wheel wheel speed sensors, and shock absorber ECU ECU.Specific regulation process is as follows：
Refering to Figure 11, shock absorber ECU ECU receive come from body-acceleration sensor, wheel wheel speed sensors and
The signal (brake pressure, throttle position, speed, driving mode, yaw velocity, spring carried mass etc.) of CAN, is integrated
A suitable damping force is determined after calculating, the signal is transmitted to drive sprocket 17, the magnetic valve on driven sprocket 19, control is led
The moveable work wheel 32 on the right side of movable sprocket 17 and the movement of moveable work wheel 34 in the left side of driven sprocket 19 are got up, in drive sprocket
17th, in driven sprocket 19 in moveable work wheel moving process equivalent to the contact radius for changing principal and subordinate's movable sprocket and steel band, i.e.,
Realize Chain conveyer gearratio i consecutive variations, so when can continuously regulate and control the level of torque of chain gear apparatus input shaft 16.Actively
The drive connection of sprocket wheel 17 and driven sprocket 19 is represented by：
R1 × n1=r2 × n2 (1)
When the sprocket radius r1 of drive sprocket 17 is bigger, driven sprocket 19 sprocket radius r2 is smaller, the rotating speed of vane pump 9 is not
Become the rotating speed increase of then generator, and then produce bigger reverse moment of resistance T2, hinder the rotating speed of vane pump 9, increase shock absorber
Damping force.
Similarly, when the sprocket radius r1 of drive sprocket 17 is smaller, driven sprocket 19 sprocket radius r2 is bigger, vane pump 9
The rotating speed of the constant then generator of rotating speed reduces, and then produces less reverse moment of resistance T2, reduces the damping force of shock absorber.Now lift
Example is illustrated：
As shown in figure 9, when moveable work wheel 33 and moveable work wheel 31 are moved to the left simultaneously, steel band 18 is close to driven chain
19 sides are taken turns, now r2 increases, r1 reduces；The rotating speed of generator 21 is reduced, the input torque of input shaft 16 reduces for T1, increased
Add by the fluid ratio of vane pump 9 that (fluid is less than the resistance by damper piston damping hole by the damping force of vane pump
Buddhist nun's power), reduce the damping force of shock absorber.When r2 increases to maximum, and r1 is reduced to minimum value, the damping force of shock absorber reaches
The minimum value arrived.
As shown in Figure 10, when moveable work wheel 33 and moveable work wheel 31 move right simultaneously, steel band 18 is close to actively
The side of sprocket wheel 17, now r2 reductions, r1 increases；The rotating speed of generator 21 is added, the input torque of input shaft 16 increases for T1,
Reduce by the fluid ratio of vane pump 9 that (fluid is less than by damper piston damping hole by the damping force of vane pump
Damping force), add the damping force of shock absorber.When r2 is reduced to minimum value, and r1 increases to maximum, the damping force of shock absorber
The maximum reached.
For safeguard protection, under original state, the r1 of drive sprocket 17 takes maximum, and the r2 of driven sprocket 19 takes minimum
Value, i.e., damping force is maximum in the case where not taking any measure.Hereafter r1 is gradually reduced, increase r2 subtracts absorber damping force
It is small.
As the above analysis, by controlling the movement of moveable work wheel 33 and moveable work wheel 31 can step-less adjustment vibration damping
The damping force of device, if the damping force of shock absorber stretching or compression travel also can be individually controlled by certain control algolithm, or
Damping force is adjusted in a certain scope and forms different shock absorber gears, shock absorber is all up comfortableness under different operating modes
It is perfectly balanced with control stability.For example：
1. at a high speed：Damping force increases as speed increases, and when it is higher than a certain threshold value, absorber damping force is all the time
It is maintained at regulation in a higher scope；
2. low speed：When speed is less than a certain threshold value, absorber damping force is remained in a relatively low scope
Regulation；
3. turn：The increase of turning medial shock absorbers compression damping force, outside shock absorber stretching damping force increase of turning；
4. braking：The increase of vehicle front shock absorbers compression damping force, the stretching damping force increase of rear absorber damping force；
5. accelerate：The stretching damping force increase of vehicle front shock absorber, the increase of rear absorber damping force compression damping power；
6. resonance：Damping force is always maintained at being higher than a certain fixed value, prevents nonspring carried mass from resonating；
Shock absorber energy regenerative principle：
During shock absorbers compression, damper piston 6 moves down pressure rise part oil in shock absorber lower chambers 10
Liquid is flowed into vane pump 9 through 41, and promotes vane pump 9 to be turned clockwise with driven input shaft 16, and input shaft 16 passes through chain gear transmission
Device band movable sprocket device output shaft 20 rotates, so as to drive generator to rotate to be battery charging.
In shock absorbers compression stretching, damper piston 6 moves up pressure in shock absorber lower chambers 10 and reduced, part oil
Liquid is flowed into shock absorber lower chambers 10 through 40 from vane pump 9, and promotes vane pump 9 to be turned clockwise with driven input shaft 16, is inputted
Axle 16 drives chain gear apparatus output shaft 20 to rotate by sprocket transmission device, so as to drive generator to rotate to be battery charging.
No matter shock absorber is in compression travel or stretching travel as the above analysis, and input shaft 16 remains up time
Pin rotates, and is so conducive to generator to charge a battery.
Fail safe：
Failure electricity is opened when vane pump 9, chain gear apparatus or charging device of shock absorber of the present invention etc. break down
Magnet valve blocks the path that shock absorber upper chamber 11 exchanges with the inner fluid of return line 5.Now described shock absorber is one normal
Shock absorber is advised, shock absorber lower chambers 10 and shock absorber upper chamber 11 can only exchange fluid by the damping hole on damper piston 6,
Now absorber damping force is maximum.I.e. impeller pump work when, be, by the process of the damping force of shock absorber reduction, to improve automobile
Comfortableness, impeller air pump inoperative make for the sake of security shock absorber be in a damping force it is larger in the state of, improve automobile
Control stability.
Explanation：
1. the vane pump in the present invention can be substituted by the pump of other forms, such as gear pump, in the present invention, no
Pumping action form with form is substantially the same.Various forms of pumps respectively have its feature, such as oil mass, stability, can integrate many
Kind of factor selects the stepless adjustable and energy regenerative function of a suitable pump completion shock absorber.
2. the electric-control system of drive sprocket set can be replaced by hydraulic system, and the hydraulic system can be with brake fluid system
It is integrated.
3. the stepless adjustable power feeding shock absorber of active can partly should be integrated with brake power recovering device, electronic vapour can be arranged on
Che Shang, can preferably reach the purpose of energy regenerating.
Claims (9)
1. the stepless adjustable power feeding shock absorber of a kind of half active, it is characterised in that the shock absorber is by cylinder type damper, pump（9）, it is stepless
Speed governing chain gear apparatus and generator（21）Composition, cylinder type damper includes shock absorber piston rod（1）, shock absorber upper end cover（2）, subtract
Shake device cylinder barrel（3）, floating piston（4）, damper piston（6）, trip bolt（7）, shock absorber bottom end cover（8）；Shock absorber cylinder barrel
（3）Inner cylinder face from top to bottom successively with shock absorber upper end cover（2）, floating piston（4）, damper piston（6）Under shock absorber
End cap（8）External cylindrical surface coordinate；Shock absorber upper end cover（2）, floating piston（4）And damper piston（6）Center be provided with
Through hole and shock absorber piston rod（1）It is engaged；Damper piston（6）With shock absorber piston rod（1）Threaded connection, by fastening spiral shell
Nail（7）By damper piston（6）It is fastened on shock absorber piston rod（1）On；Floating piston（4）By shock absorber air chamber（12）With subtracting
Zhen Qi upper chamber（11）It is isolated entirely from, damper piston（6）Make shock absorber upper chamber provided with normal open damping hole（11）With vibration damping
Device lower chambers（10）Inner fluid can circulate；Shock absorber upper end cover（2）It is fixed on damper cylinder barrel（3）Upper end, shock absorber lower end
Lid（8）It is fixed on damper cylinder barrel（3）Lower end, shock absorber upper end cover（2）, shock absorber bottom end cover（8）With damper cylinder barrel（3）Shape
Into sealing structure；
Pump（9）It is fixed on immediately below cylinder type damper, there are two fluid exchange routes therebetween, one is pump（9）Upper end two
Individual through hole is by stretching one-way hydraulic valve（40）With compression one-way hydraulic valve（41）With shock absorber lower chambers（10）It is connected, it is another
Bar is pump（9）The normal open hole of bottom passes through return line（5）It is connected to shock absorber upper chamber（11）；Shock absorber upper chamber（11）With
Return line（5）Connection pass through failure valve（42）Control；
Stepless speed regulation chain gear apparatus is transmission device, stepless speed regulation chain gear apparatus side and pump（9）It is connected, opposite side and generator
（21）It is connected, pump（9）For drive device, generator（21）For driven device.
2. the stepless adjustable power feeding shock absorber of half active according to claim 1, it is characterised in that floating piston（4）Including
Rubber buffer I（22）, sealing ring I（23）, floating piston body（24）, rubber buffer II（25）, sealing ring III（29）；Sealing
Circle III（29）Positioned at floating piston body（24）Inside outer wall, rubber buffer I（22）With rubber buffer II（25）It is located at respectively
Floating piston body（24）Upper and lower end face, and be partially embedded into floating piston body（24）It is interior.
3. the stepless adjustable power feeding shock absorber of half active according to claim 1, it is characterised in that damper piston（6）Bag
Include rubber buffer III（26）, sealing ring II（27）, damper piston body（28）；Sealing ring II（27）Positioned at damper piston
Body（28）Inside outer wall, rubber buffer III（26）Positioned at damper piston body（28）Upper surface, and be partially embedded into vibration damping
Device piston body（28）It is internal.
4. the stepless adjustable power feeding shock absorber of half active according to claim 1, it is characterised in that stepless speed regulation chain gear apparatus
Including chain gear apparatus input shaft（16）, drive sprocket（17）, steel band（18）, driven sprocket（19）, chain gear apparatus output shaft（20）；
Steel band（18）By drive sprocket（17）And driven sprocket（19）Link together；
Wherein, drive sprocket（17）Mainly include the moveable work wheel of two parts, i.e. left side（31）With the fixation active wheel on right side
（32）Composition, two active wheels are tapered, steel band（18）It can be moved up and down along its conical surface, moveable work wheel（31）Through input
Axle（16）, and can be in the presence of hydraulic coupling or electromagnetic force along input shaft（16）Horizontally slip, fixed active wheel（32）It is then solid
Surely input shaft is arrived（16）Right-hand member can not rotate around it；
Driven sprocket（19）Mainly include the fixation active wheel of two parts, i.e. left side（34）With the moveable work wheel on right side（33）Group
Into the tapered steel band of two active wheels（18）It can be moved up and down along its conical surface, moveable work wheel（33）It is defeated through chain gear apparatus
Shaft（20）, and can be in the presence of hydraulic coupling or electromagnetic force along chain gear apparatus output shaft（20）Horizontally slip, fixed work
Wheel（34）Then it is fixed to chain gear apparatus output shaft（20）Left end can not rotate around it.
5. the stepless adjustable power feeding shock absorber of half active according to claim 4, it is characterised in that pump（9）For vane pump.
6. the stepless adjustable power feeding shock absorber of half active according to claim 5, it is characterised in that the vane pump is by blade
Pump left end cap（13）, flat key（14）, vane pump right end cap（15）, bearing（30）With pump housing composition；Vane pump left end cap（13）With
Vane pump right end cap（15）Pump housing environmental sealing is got up, bearing（30）Positioned at vane pump left end cap（13）Right center in
Portion, flat key（14）For linking the blade pump housing and chain gear apparatus input shaft（16）.
7. the stepless adjustable power feeding shock absorber of half active according to claim 1, it is characterised in that the failure valve（42）
For magnetic valve.
8. the stepless adjustable power feeding shock absorber of half active according to claim 1, it is characterised in that shock absorber cylinder barrel（3）It is interior
Failure valve（42）Lower regions are provided with two structures caved inward.
9. the half stepless adjustable power feeding shock absorber of active according to claim 1 ~ 8 any one, it is characterised in that shock absorber
Cylinder barrel（3）Upper and lower ends are provided with ladder blind hole, shock absorber upper end cover（2）Damper cylinder barrel is fixed on by ladder blind hole（3）
Upper end, shock absorber bottom end cover（8）Damper cylinder barrel is fixed on by ladder blind hole（3）Lower end.
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| CN201610403791.1A CN105840712B (en) | 2016-06-08 | 2016-06-08 | A kind of stepless adjustable power feeding shock absorber of half active |
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| CN201610403791.1A CN105840712B (en) | 2016-06-08 | 2016-06-08 | A kind of stepless adjustable power feeding shock absorber of half active |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110667330B (en) * | 2018-08-28 | 2024-07-23 | 浙江大学 | Automobile electromagnetic actuator with safety device |
| CN110667364B (en) * | 2019-09-18 | 2024-05-14 | 阿尔特汽车技术股份有限公司 | Suspension system with energy recovery device |
| CN111963611B (en) * | 2020-08-07 | 2022-10-14 | 蔚蓝计划(北京)科技有限公司 | Automobile capable of adaptively adjusting vibration reduction effect |
| CN112096775B (en) * | 2020-09-23 | 2021-09-03 | 同济大学 | Constant-pressure piston type particle damper |
| CN113074211B (en) * | 2021-03-25 | 2022-10-04 | 天津大学 | Frequency-dependent passive intelligent variable damping control device |
| CN113202894B (en) * | 2021-04-20 | 2022-05-17 | 淮阴工学院 | Hydro-electric vibration energy recovery shock absorber |
| CN115574036B (en) * | 2022-11-23 | 2023-04-07 | 泰州市明朗机械制造有限公司 | Damper |
| CN115949693B (en) * | 2022-12-13 | 2024-05-24 | 浙江方泰汽车配件有限公司 | Impeller energy feedback type damping rod |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH04282040A (en) * | 1991-03-08 | 1992-10-07 | Kayaba Ind Co Ltd | Shock absorber using electroviscous fluid |
| CN100478580C (en) * | 2006-09-05 | 2009-04-15 | 北京理工大学 | Inflation damping continuous adjusting current transformation vibration damper |
| EP2246566A2 (en) * | 2009-04-20 | 2010-11-03 | Innas B.V. | Axial bearing for use in a hydraulic device, a hydraulic transformer and a vehicle with a hydraulic drive system |
| CN104343878B (en) * | 2014-09-30 | 2016-04-06 | 重庆工商大学 | A kind of control system of vibrational energy and method |
| CN104976266A (en) * | 2015-06-15 | 2015-10-14 | 万向钱潮股份有限公司 | Fluid electric energy feedback type semi-active control shock absorber system |
| CN205678045U (en) * | 2016-06-08 | 2016-11-09 | 吉林大学 | A kind of partly stepless adjustable power feeding shock absorber of active |
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