CN110374950A - The oil circuit control method and oil channel structures of damper, damper, vehicle - Google Patents
The oil circuit control method and oil channel structures of damper, damper, vehicle Download PDFInfo
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- CN110374950A CN110374950A CN201910537046.XA CN201910537046A CN110374950A CN 110374950 A CN110374950 A CN 110374950A CN 201910537046 A CN201910537046 A CN 201910537046A CN 110374950 A CN110374950 A CN 110374950A
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- oil
- hydraulic cylinder
- branch
- damper
- channel structures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
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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
- F16F9/18—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 with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—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 with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
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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
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
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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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
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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
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
- F16F2228/066—Variable stiffness
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention relates to absorber technical field more particularly to the oil circuit control methods and oil channel structures of a kind of damper, damper and vehicle.In the oil channel structures of damper of the present invention, piston is reciprocating in the inside of hydraulic cylinder, to be to have bar cylinder and without bar cylinder by the inside division of hydraulic cylinder, driving oil circuit and overflow oil circuit are connected in parallel on pressure oil tank jointly and have between bar cylinder, the first branch and repairing branch are connected in parallel on pressure oil tank and jointly without between bar cylinders, second branch is located at the outside of hydraulic cylinder and has been connected to bar cylinder and without between bar cylinder, and third branch is located in hydraulic cylinder and has been connected to bar cylinder and without between bar cylinder.At least two control models may be implemented in the oil channel structures, specifically include full aggressive mode and half aggressive mode, the damper can be made to carry out real-time automatic adjusument, the damping force for adjusting hydraulic cylinder in real time is controlled by oil circuit, so that the overall performance of vehicle is attained by optimum state under various driving conditions.
Description
Technical field
The present invention relates to absorber technical field more particularly to the oil circuit control method and oil channel structures of a kind of damper,
Damper and vehicle.
Background technique
Rail traffic vehicles in the process of running, track excitation, hunting autoexcitation crosswind motivate etc. due to, meeting
Generate vibration.When vibration reaches a certain level, safety, comfort and the service life of vehicle operation can be generated very big
Negative effect.For this purpose, rail locomotive vehicle nearly all will be installed damper to offset Vehicular vibration in use.
High-speed EMUs is frequently subjected to track excitation, hunting autoexcitation and crosswind excitation etc. in operation and causes car body
Resonance seriously affects easypro so that yawing, traversing vibration can occur, set one's heart the rolling vehicle phenomenon such as pendular oscillation and lower heart pendular oscillation
Appropriateness.
Automatic adjusument can not be carried out after traditional passive damper factory, causes rolling vehicle phenomenon that cannot be solved well
Certainly.And existing active damper is excessively complicated in terms of control system at present, reliability is not high, and not can solve vehicle and exist
The problem of running stability difference when passing through curve；On the other hand, at present in existing active damper or vibration insulating system, control
System, there is no the rolling problem for considering car body, cannot be sent out well in design so as to cause existing active damper
Wave damping effect.
Summary of the invention
(1) technical problems to be solved
The embodiment of the invention provides the oil circuit control method and oil channel structures of a kind of damper, damper and vehicles, use
Excessively complicated in terms of control system to solve existing active damper, reliability is not high, and not can solve vehicle logical
The problem of running stability difference when crossing curve.
(2) technical solution
In order to solve the above-mentioned technical problems, the present invention provides a kind of oil channel structures of damper, including hydraulic cylinder and work
Plug, the piston is reciprocating in the inside of hydraulic cylinder, is to have bar cylinder and without bar cylinder by the inside division of the hydraulic cylinder,
It is characterized in that, the oil channel structures further include pressure oil tank and oil circuit composition, the oil circuit composition includes driving oil circuit, overflow
Oil circuit, the first branch, second branch and third branch, the driving oil circuit and overflow oil circuit are connected in parallel on the pressure oil tank and have
Between bar cylinder, the first branch and repairing branch circuit parallel connection are in the pressure oil tank and without between bar cylinder, the second branch position
In hydraulic cylinder outside and be connected to and described have bar cylinder and without between bar cylinder, the third branch is located at the inside of hydraulic cylinder and company
Connecing has bar cylinder and without between bar cylinder described.
In some embodiments, the driving branch road is in series with transfer tube, and the transfer tube is connected with motor.
In some embodiments, the driving branch road is in series with third check valve, and the overflow branch road is in series with ratio
Example overflow valve, is in series with first switch valve and second switch valve, the benefit in the first branch and the second branch respectively
Oily branch road is in series with the first check valve, and the third branch road is in series with second one-way valve.
In some embodiments, the oil circuit composition further includes emergency branch, and the emergency branch circuit parallel connection is in the pressure
Fuel tank and it is described have between bar cylinder, emergency branch road is parallel with throttle valve and safety overflow valve.
The present invention also provides a kind of dampers, the oil channel structures including lower oil path block and damper as described above,
The lower oil path block is fixed on the hydraulic cylinder bottom of the oil channel structures, the pressure oil tank and oil circuit group ingredient of the oil channel structures
It is not integrated in the lower oil path block, the two sides of the lower oil path block are respectively fixed with transfer tube and motor.
In some embodiments, one end of the hydraulic cylinder is fixed with attachment base, and the lower oil path block is fixed on the company
The bottom of joint chair is respectively equipped with first switch valve, second switch valve and proportional pressure control valve on the lower oil path block.
In some embodiments, the piston includes piston only and piston rod, and one end of the piston rod is from the liquid
End on cylinder pressure far from attachment base stretches to the inside of the hydraulic cylinder, and the piston only is connected to the end of the piston rod
Portion, and can be reciprocating in the inside of the hydraulic cylinder under the drive of the piston rod.
In some embodiments, the piston rod far from hydraulic cylinder one end be equipped with back seat, the back seat of the piston rod with
Telescopic dust cover is connected between the hydraulic cylinder.
In some embodiments, the hydraulic cylinder is equipped on the end of attachment base and the back seat of the piston rod and sets respectively
There is mounting base connector.
In some embodiments, which further includes upper oil path block, and the upper oil path block is fixed on the hydraulic cylinder
Top is respectively provided with safety overflow valve and shut-off valve on the upper oil path block.
The present invention also provides a kind of vehicles, including at least one damper as described above.
It is the oil circuit knot based on damper as described above the present invention also provides a kind of oil circuit control method of damper
What structure proposed, this method comprises:
The control model of the oil channel structures includes full aggressive mode, half aggressive mode and Passive Mode；
When the oil channel structures switch to full aggressive mode, oil circuit and overflow oil circuit is driven to enable simultaneously；
When the oil channel structures switch to half aggressive mode, the overflow oil circuit is enabled, and the driving oil circuit does not enable；
When the oil channel structures switch to Passive Mode, the driving oil circuit and overflow oil circuit are not enabled.
(3) beneficial effect
Above-mentioned technical proposal of the invention has the advantages that in the oil channel structures of damper of the present invention,
Piston is reciprocating in the inside of hydraulic cylinder, is to have bar cylinder and without bar cylinder by the inside division of hydraulic cylinder, drive oil circuit and
Overflow oil circuit is connected in parallel on pressure oil tank jointly and has between bar cylinder, the first branch and repairing branch be connected in parallel on jointly pressure oil tank and
Without between bar cylinder, it is outer and be connected to bar cylinder and without between bar cylinder, third branch is located at hydraulic cylinder that second branch is located at hydraulic cylinder
It is interior and be connected to bar cylinder and without between bar cylinder.At least two control models may be implemented in the oil channel structures, specifically include full master
Dynamic model formula and half aggressive mode can make the damper carry out real-time automatic adjusument, controlled by oil circuit and adjust liquid in real time
The damping force of cylinder pressure, so that the overall performance of vehicle is attained by optimum state, especially vehicle under various driving conditions
Carry out curve when driving, which can be by active automatic adjusument, to greatly improve the steady of curve motion
Property, and also can effectively solve the rolling problem of car body.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the damper of the embodiment of the present invention；
Fig. 2 is the oil circuit control figure of the damper of the embodiment of the present invention；
Fig. 3 is that the piston of the full aggressive mode of the damper of the embodiment of the present invention stretches out decaying subpattern working principle diagram；
Fig. 4 is that the piston of the full aggressive mode of the damper of the embodiment of the present invention stretches out off-load subpattern working principle diagram；
Fig. 5 is that the piston of the full aggressive mode of the damper of the embodiment of the present invention retracts decaying subpattern working principle diagram；
Fig. 6 is that the piston of the full aggressive mode of the damper of the embodiment of the present invention retracts off-load subpattern working principle diagram；
Fig. 7 is that the piston of half aggressive mode of the damper of the embodiment of the present invention stretches out decaying subpattern working principle diagram；
Fig. 8 is that the piston of half aggressive mode of the damper of the embodiment of the present invention stretches out off-load subpattern working principle diagram；
Fig. 9 is that the piston of half aggressive mode of the damper of the embodiment of the present invention retracts decaying subpattern working principle diagram；
Figure 10 is that the piston of half aggressive mode of the damper of the embodiment of the present invention retracts off-load subpattern working principle diagram；
Figure 11 is that the piston of the Passive Mode of the damper of the embodiment of the present invention stretches out subpattern working principle diagram；
Figure 12 is that the piston of the Passive Mode of the damper of the embodiment of the present invention retracts subpattern working principle diagram；
In above each figure:
1, hydraulic cylinder；2, dust cover；3, mounting base connector；4, first switch valve；
5, second switch valve；6, motor；7, proportional pressure control valve；8, lower oil path block；
9, pipeline；10, transfer tube；11, upper oil path block；12, safety overflow valve；
13, electromagnetic switch valve；14, piston；15, pressure oil tank；16, throttle valve；
17, mandrel；18, the first check valve；19, second one-way valve；
20, third check valve；PA, there is bar cylinder；PB, without bar cylinder.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment is used for
Illustrate the present invention, but cannot be used to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.Term " on ",
The orientation or positional relationship of the instructions such as "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and should not be understood as instruction or
Imply relative importance.
In a first aspect, present embodiments providing a kind of oil channel structures of damper and the oil circuit controlling party of the oil channel structures
Method.
At least two control models may be implemented in oil channel structures provided in this embodiment.Control model specifically includes but unlimited
In full aggressive mode and half aggressive mode, the damper can be made to carry out real-time automatic adjusument, be controlled by oil circuit real-time
The damping force of hydraulic cylinder 1 is adjusted, so that the overall performance of vehicle is attained by optimum state under various driving conditions, it is special
It is not that vehicle is carrying out curve when driving, which can be by active automatic adjusument, to greatly improve curve motion
Stationarity, and also can effectively solve the rolling problem of car body.
Specifically, as depicted in figs. 1 and 2, the oil channel structures of damper of the present invention include hydraulic cylinder 1, piston 14,
Pressure oil tank 15 and oil circuit composition.The setting of the oil channel structures can solve bullet train by track irregularity excitation and transverse direction
Headstock yawing caused by the factors such as wind excitation, sets one's heart pendular oscillation and lower heart pendular oscillation etc. at traversing vibration, overcomes traditional
The problem of passive damper cannot be according to line condition automatic adjusument damping parameter, moreover it is possible to which vehicle is under different driving status
Comfort level.
The hydraulic cylinder 1 of the present embodiment is connected between bogie and vehicle body, for mentioning in vehicle travel process for vehicle body
For damping power.Piston 14 is reciprocating in the inside of hydraulic cylinder 1, is to have bar cylinder PA by the inside division of hydraulic cylinder 1
With no bar cylinder PB.With piston 14 from the direction that hydraulic cylinder 1 is extracted from inside to outside to stretch out direction, the left side as shown in Fig. 2~Figure 12
As stretch out direction；The direction that then piston 14 is protruded into the inside of hydraulic cylinder 1 is retracted orientation, the right side as shown in Fig. 2~Figure 12
Side is retracted orientation.When along direction and retracted orientation reciprocating motion is stretched out, the oil liquid in oil circuit composition occurs more piston 14
Kind variation, so that hydraulic cylinder 1 is able to further in different subpatterns in full aggressive mode and half aggressive mode
Between switch.Specifically, the full aggressive mode and half aggressive mode of hydraulic cylinder 1 respectively include decaying subpattern and off-load submodule
Formula.Each mode specific work process is decomposed in detail in subsequent work.
In the present embodiment, oil circuit composition include but is not limited to driving oil circuit, overflow oil circuit and it is a plurality of be used for repairing or reflux
Branch.Specifically, a plurality of branch of the present embodiment includes the first branch, second branch, third branch and repairing branch.
The first branch and repairing branch are connected in parallel on pressure oil tank 15 and jointly without between bar cylinder PB, preferably go here and there in the first branch
It is associated with first switch valve 4, repairing branch road is in series with the first check valve 18.Second branch is located at the outside of hydraulic cylinder 1 and connection
There is bar cylinder PA and without between bar cylinder PB, second switch valve 5 is preferably in series in second branch.In the present embodiment, first switch
Valve 4 and second switch valve 5 are switching valve, have two working conditions of on and off.The on off operating mode of switching valve is by control signal
Polarity control, can be switched at high speed, realize the application damping force under the full aggressive mode of damper or half aggressive mode and refer to
Enable accurately tracking for signal.
Third branch is located at the inside of hydraulic cylinder 1 and has been connected to bar cylinder PA and without between bar cylinder PB, preferably third branch
On be in series with second one-way valve 19.Driving oil circuit and overflow oil circuit are connected in parallel on pressure oil tank 15 jointly and have between bar cylinder PA,
Middle driving oil circuit is used to provide constant hydraulic flow under full aggressive mode for hydraulic cylinder 1 as driving source, preferably driving branch
Road is in series with third check valve 20 and transfer tube 10, and transfer tube 10 is connected with motor 6, and motor 6 starts under full aggressive mode,
So that transfer tube 10 generates hydraulic action in driving oil circuit, so that oil liquid has been pumped in bar cylinder PA from pressure oil tank 15.
Overflow oil circuit is worked at the same time in full aggressive mode and half aggressive mode, can control the hydraulic of overflow oil circuit, to realize hydraulic
Damping force is actively generated in cylinder 1, preferably overflow branch road is in series with proportional pressure control valve 7, can promote when proportional pressure control valve 7 works on power
Overflow branch is set to work, to actively generate damping force, proportional pressure control valve 7 can also be used as safety valve use when power is off, from
And improve the safety guarantee power of the oil circuit control of hydraulic cylinder 1.
In the present embodiment, the control model of oil channel structures further includes Passive Mode.When the oil channel structures of damper are in quilt
When dynamic model formula, the oil channel structures are identical as traditional passive damper, not can be carried out automatic adjusument, but Passive Mode can
Contingency mode when being powered off as oil channel structures, to guarantee damper still when vehicle is in the precarious position of power-off
It can work normally, improve the safety of vehicle driving.
Specifically, oil circuit composition further includes emergency branch in the oil channel structures of the present embodiment, emergency branch is connected to pressure
Fuel tank 15 and have between bar cylinder PA, so emergency branch, driving oil circuit and overflow oil circuit are connected in parallel on pressure oil tank 15 jointly and have
Between bar cylinder PA.Emergency branch road is connected separately with throttle valve 16 and safety overflow valve 12, throttle valve 16 and safety overflow valve 12
Between it is in parallel.Throttle valve 16 works in Passive Mode, and in oil channel structures power-off, throttle valve 16 can generate damping force to ensure liquid
Cylinder pressure 1 normally plays damping effect, so that damper generates passive damping effect.
Based on above-mentioned oil channel structures, the present embodiment proposes a kind of oil circuit control method of damper.In this method, needle
Control model to above-mentioned oil channel structures includes at least two modes.Specific in the present embodiment, the control of the oil channel structures
Mode includes full aggressive mode, half aggressive mode and Passive Mode.When the oil channel structures switch to full aggressive mode, driving
Oil circuit and overflow oil circuit enable simultaneously；When the oil channel structures switch to half aggressive mode, the overflow oil circuit is enabled, described
Driving oil circuit does not enable；When the oil channel structures switch to Passive Mode, the driving oil circuit and overflow oil circuit are not enabled.
Three control models of the oil channel structures described in the present embodiment make parsing in detail below.
(1) full aggressive mode
As shown in Fig. 3~Fig. 6, when oil channel structures described in the present embodiment are in full aggressive mode, proportional pressure control valve 7,
One switch valve 4 and second switch valve 5 work on power, wherein according to 14 moving situation of piston, first switch valve 4 and second switch
Valve 5 is made adaptively to switch in two subpatterns of on-off.Motor 6 and transfer tube 10 are in starting operating status always, thus
So that the oil liquid in pressure oil tank 15 exports constant flow rate to having in bar cylinder PA for hydraulic cylinder 1 by driving oil circuit.Due to driving
Pump 10 provide constant flow rate output so that damper under full aggressive mode for the control of damping force than under half aggressive mode
It is more smooth.
Full aggressive mode described in the present embodiment further comprises following four subpattern:
1. complete actively stretch out decaying subpattern
As shown in figure 3, when the piston 14 under the subpattern in hydraulic cylinder 1 is stretched out to stretching direction, motor 6 and transfer tube 10
Starting operating is kept, and exports constant flow rate to 1 rod chamber of hydraulic cylinder, then drives oil circuit in running order.The fortune of piston rod
Dynamic direction is stretching direction, and the power output control command direction of hydraulic cylinder 1 is retracted orientation, so at the stretch out motion of piston rod
In attenuation state.
First switch valve 4 obtains electric and switches to logical state, 7 work once electrified of proportional pressure control valve.With the stretching of piston rod, one
Aspect pressure oil tank 15 supplements oil liquid into no bar cylinder PB simultaneously by repairing branch and the first branch；On the other hand there is bar cylinder PA
Interior oil liquid enters in overflow oil circuit and flows back to pressure oil tank 15 by proportional pressure control valve 7.At this point, the overflow pressure in overflow oil circuit
Power and the size for thering is 14 area of piston in bar cylinder PA to determine damping force, and the direction of damping force is retraction side under the subpattern
To opposite with perturbation direction (direction of vibration).
Under the subpattern, throttle valve 16 is closed, i.e., the emergency branch in oil channel structures by shielding, lead to by oil-free liquid stream.The
Three branches are limited by the flow direction of second one-way valve 19 and are in an off state, that is, have oil liquid in bar cylinder PA in no bar cylinder PB
Oil liquid does not circulate in the inside of hydraulic cylinder 1.Second switch valve 5 obtains electric but switches to disconnected state, so that nothing in second branch
Oil liquid circulation.
2. actively stretching out off-load mode entirely
As shown in figure 4, when the piston 14 under the subpattern in hydraulic cylinder 1 is stretched out to stretching direction, motor 6 and transfer tube 10
Starting operating is kept, and exports constant flow rate to 1 rod chamber of hydraulic cylinder, then drives oil circuit in running order.Second switch valve 5
It obtains electric and switches to logical state, 7 work once electrified of proportional pressure control valve.
With the stretching of piston rod, there is a part of oil liquid in bar cylinder PA to enter in second branch and flow through second switch valve
Be supplemented in rodless cavity after 5, another part oil liquid then enters in overflow oil circuit flow through proportional pressure control valve 7 after flow back to pressure oil tank 15
In.At this point, having, the pressure of bar cylinder PA is equal with the pressure of no bar cylinder PB, which is equal to the overflow pressure of proportional pressure control valve 7
Power.There is 14 area of piston in bar cylinder PA since 14 area of piston in no bar cylinder PB is greater than, at this time the direction of motion of piston rod
To stretch out direction, and the power output control command direction of hydraulic cylinder 1 is similarly and stretches out direction, and the size of the hydraulic cylinder 1 power output can lead to
Cross the adjusting of proportional pressure control valve 7.Therefore, under full aggressive mode, damper can also actively be generated in off-load and perturbation direction
It is consistent to unload load forces, to keep the work of damper more smooth.
Under the subpattern, throttle valve 16 is closed, i.e., the emergency branch in oil channel structures by shielding, lead to by oil-free liquid stream.The
Three branches are limited by the flow direction of second one-way valve 19 and are in an off state, that is, have oil liquid in bar cylinder PA in no bar cylinder PB
Oil liquid does not circulate in the inside of hydraulic cylinder 1.Repairing branch is limited by the flow direction of the first check valve 18 and is in an off state.First
Switch valve 4 obtains electric but switches to disconnected state, so that oil-free liquid stream is logical in the first branch.
3. complete actively retract decaying subpattern
As shown in figure 5, when the piston 14 under the subpattern in hydraulic cylinder 1 is retracted in hydraulic cylinder 1 to retracted orientation, motor
6 and transfer tube 10 keep starting operating, and to 1 rod chamber of hydraulic cylinder export constant flow rate, then drive oil circuit in running order.
Second switch valve 5 obtains electric and switches to logical state, 7 work once electrified of proportional pressure control valve.The direction of motion of piston rod is retracted orientation,
And the power output control command direction of hydraulic cylinder 1 is stretching direction, so the retraction movement of piston rod is in attenuation state.
With the retraction of piston rod, on the one hand enters third branch without a part of oil liquid in bar cylinder PB and flow through second unidirectionally
It has been filled into after valve 19 in bar cylinder PA, another part oil liquid, which enters after second branch flows through second switch valve 5, have been filled into bar cylinder PA；
On the other hand there is the oil liquid in bar cylinder PA to enter in overflow oil circuit and pressure oil tank 15 is flowed back to by proportional pressure control valve 7.At this point, than
The oil pressure relief of example overflow valve 7 without 14 area of piston in bar cylinder PB and has 14 area of piston in bar cylinder PA to codetermine resistance
The size of Buddhist nun's power, and damping force direction is to stretch out direction, it is opposite with perturbation direction.
Under the subpattern, throttle valve 16 is closed, i.e., the emergency branch in oil channel structures by shielding, lead to by oil-free liquid stream.It mends
Oily branch is limited by the flow direction of the first check valve 18 and is in an off state.First switch valve 4 obtains electric but switches to disconnected state, from
And make oil-free liquid stream in the first branch logical.
4. actively retracting off-load subpattern entirely
As shown in fig. 6, when the piston 14 under the subpattern in hydraulic cylinder 1 is retracted in hydraulic cylinder 1 to retracted orientation, motor
6 and transfer tube 10 keep starting operating, and to 1 rod chamber of hydraulic cylinder export constant flow rate, then drive oil circuit in running order.
The power output control command direction of hydraulic cylinder 1 is identical as the direction of motion of piston rod at this time, is all retracted orientation.First switch valve 4
It obtains electric and switches to logical state, 7 work once electrified of proportional pressure control valve.
With the retraction of piston rod, the oil liquid in no bar cylinder PB enters in the first branch and flows after flowing through first switch valve 4
Be back in pressure oil tank 15, have the oil liquid in bar cylinder PA enter in overflow oil circuit flow through proportional pressure control valve 7 after flow back to pressure oil tank
In 15.At this time since the oil liquid in pressure oil tank 15 being pumped into bar cylinder PA in driving oil circuit, then it can be considered driving oil circuit
The oil liquid being pumped into bar cylinder PA returns in pressure oil tank 15 by overflow oil circuit.Since transfer tube 10 is pumped to having in bar cylinder PA
Constant flow is sent, when hydraulic cylinder 1 retracts off-load, has the pressure in bar cylinder PA still to be controlled by proportional pressure control valve 7, to make
The power output of hydraulic cylinder 1 direction is also retracted orientation, i.e., consistent with perturbation direction.Therefore, under full aggressive mode, damper is in off-load
When can also actively generate and perturbation direction is consistent unloads load forces, to keep the work of damper more smooth.
Under the subpattern, throttle valve 16 is closed, i.e., the emergency branch in oil channel structures by shielding, lead to by oil-free liquid stream.The
Three branches are limited by the flow direction of second one-way valve 19 and are in an off state, that is, have oil liquid in bar cylinder PA in no bar cylinder PB
Oil liquid does not circulate in the inside of hydraulic cylinder 1.Repairing branch is limited by the flow direction of the first check valve 18 and is in an off state.Second
Switch valve 5 obtains electric but switches to disconnected state, so that oil-free liquid stream is logical in second branch.
(2) half aggressive modes
As shown in Fig. 7~Figure 10, when oil channel structures described in the present embodiment are in half aggressive mode, proportional pressure control valve 7,
One switch valve 4 and second switch valve 5 work on power, wherein according to 14 moving situation of piston, first switch valve 4 and second switch
Valve 5 is made adaptively to switch in two subpatterns of on-off.Motor 6 and transfer tube 10 are in halted state, i.e. driving oil circuit
It disconnects.Throttle valve 16 is closed, so that emergency branch is shielded.Under the mode, the oil pressure relief size of proportional pressure control valve 7
Depending on control command size, the switch state of each switch valve is controlled by the polarity of control command.
Half aggressive mode described in the present embodiment further comprises following four subpattern:
1. half actively stretches out decaying subpattern
As shown in fig. 7, when the piston 14 under the subpattern in hydraulic cylinder 1 is stretched out to stretching direction, the power output control of hydraulic cylinder 1
Command direction processed is retracted orientation, and the stretch out motion of piston rod is in attenuation state.
First switch valve 4 obtains electric and switches to logical state, 7 work once electrified of proportional pressure control valve.With the stretching of piston rod, one
Oil liquid in aspect pressure oil tank 15 supplements oil liquid into no bar cylinder PB simultaneously by repairing branch and the first branch；On the other hand
There is the oil liquid in bar cylinder PA to enter in overflow oil circuit and pressure oil tank 15 is flowed back to by proportional pressure control valve 7.At this point, in overflow oil circuit
Oil pressure relief and the size that there is 14 area of piston in bar cylinder PA to determine damping force, and under the subpattern damping force direction
It is opposite with perturbation direction (direction of vibration) for retracted orientation.
Under the subpattern, motor 6 and transfer tube 10 are in the state that shuts down, then oil circuit is driven to be in off state.Section
Stream valve 16 is closed, i.e., the emergency branch in oil channel structures by shielding, lead to by oil-free liquid stream.Third branch is by second one-way valve 19
Flow direction limitation and be in an off state, that is, have the oil liquid in bar cylinder PA with the oil liquid in no bar cylinder PB in the inside of hydraulic cylinder 1
It does not circulate.Second switch valve 5 obtains electric but switches to disconnected state, so that oil-free liquid stream is logical in second branch.
2. half actively stretches out off-load subpattern
As shown in figure 8, the piston 14 under the subpattern in hydraulic cylinder 1 is to when stretching out direction stretching, second switch valve 5 obtains electric
And logical state is switched to, 7 work once electrified of proportional pressure control valve.
With the stretching of piston rod, there is the oil liquid in bar cylinder PA to enter in second branch and mend after flowing through second switch valve 5
It is charged in rodless cavity, but was stayed in proportional pressure control valve 7 without oil liquid, so overflow oil circuit does not generate damping force.
In addition, have 14 area of piston of bar cylinder PA since 14 area of piston of no bar cylinder PB is greater than, thus have bar cylinder PA to
The oil liquid volume of no bar cylinder PB supplement is not enough to still need to pressure oil tank 15 by repairing Zhi Luxiang without in bar cylinder PB full of rodless cavity
Supplement oil liquid.Have that the pressure of bar cylinder PA is equal with the pressure of no bar cylinder PB, which is equal to the overflow pressure of proportional pressure control valve 7
Power.There is 14 area of piston in bar cylinder PA since 14 area of piston in no bar cylinder PB is greater than, at this time the direction of motion of piston rod
To stretch out direction, and the power output control command direction of hydraulic cylinder 1 is similarly and stretches out direction, and the size of the hydraulic cylinder 1 power output can lead to
Cross the adjusting of proportional pressure control valve 7.At this point, there is the pressure base in the pressure of bar cylinder PA, the pressure without bar cylinder PB and pressure oil tank 15
This is equal, and due to the pressure very little in pressure oil tank 15, so it is considered that damper is in the stretching of piston 14 and unloads at this time
The state of lotus.
Under the subpattern, motor 6 and transfer tube 10 are in the state that shuts down, then oil circuit is driven to be in off state.Section
Stream valve 16 is closed, i.e., the emergency branch in oil channel structures by shielding, lead to by oil-free liquid stream.Third branch is by second one-way valve 19
Flow direction limitation and be in an off state, that is, have the oil liquid in bar cylinder PA with the oil liquid in no bar cylinder PB in the inside of hydraulic cylinder 1
It does not circulate.First switch valve 4 obtains electric but switches to disconnected state, so that oil-free liquid stream is logical in the first branch.
3. half actively retracts evanescent mode
As shown in figure 9, when the piston 14 under the subpattern in hydraulic cylinder 1 is retracted in hydraulic cylinder 1 to retracted orientation, second
Switch valve 5 obtains electric and switches to logical state, 7 work once electrified of proportional pressure control valve.The direction of motion of piston rod is retracted orientation, and liquid
The power output control command direction of cylinder pressure 1 is stretching direction, so the retraction movement of piston rod is in attenuation state.
With the retraction of piston rod, on the one hand enters third branch without a part of oil liquid in bar cylinder PB and flow through second unidirectionally
It has been filled into after valve 19 in bar cylinder PA, another part oil liquid, which enters after second branch flows through second switch valve 5, have been filled into bar cylinder PA；
On the other hand there is the oil liquid in bar cylinder PA to enter in overflow oil circuit and pressure oil tank 15 is flowed back to by proportional pressure control valve 7.Due to nothing
14 area of piston of bar cylinder PB, which is greater than, 14 area of piston of bar cylinder PA, so without bar cylinder PB to the oil liquid body for having bar cylinder PA to supplement
Product will be more than there is the oil liquid volume required supplementation in bar cylinder PA, then extra oil liquid flows back to pressure oil tank 15 by overflow oil circuit,
Damping force size depends on the oil pressure relief of the proportional pressure control valve 7 of oil overflow road, has 14 area of piston and nothing of bar cylinder PA
14 area of piston of bar cylinder PB, and the direction of damping force is to stretch out direction, it is opposite with perturbation direction.
Under the subpattern, motor 6 and transfer tube 10 are in the state that shuts down, then oil circuit is driven to be in off state.Section
Stream valve 16 is closed, i.e., the emergency branch in oil channel structures by shielding, lead to by oil-free liquid stream.Repairing branch is by the first check valve 18
Flow direction limitation and be in an off state.First switch valve 4 obtains electric but switches to disconnected state, so that oil-free in the first branch
Liquid stream is logical.
4. half actively retracts off-load subpattern
As shown in Figure 10, when the piston 14 under the subpattern in hydraulic cylinder 1 is retracted in hydraulic cylinder 1 to retracted orientation, liquid
The power output control command direction of cylinder pressure 1 is identical as the direction of motion of piston rod, is all retracted orientation.Under the subpattern, first is opened
Valve 4 is closed to obtain electric and switch to logical state, 7 work once electrified of proportional pressure control valve.
With the retraction of piston rod, a part of oil liquid in no bar cylinder PB enters after third branch flows through second one-way valve 19
It has filled into bar cylinder PA, another part oil liquid enters in the first branch and flows back into pressure oil tank 15 after flowing through first switch valve 4
In.But it was stayed in proportional pressure control valve 7 without oil liquid, so overflow oil circuit does not generate damping force.At this point, having the pressure of bar cylinder PA, nothing
The pressure of bar cylinder PB and pressure in pressure oil tank 15 are of substantially equal, and due to the pressure very little in pressure oil tank 15, so
It is considered that damper is in the state that piston 14 retracts simultaneously off-load at this time.
Under the subpattern, motor 6 and transfer tube 10 are in the state that shuts down, then oil circuit is driven to be in off state.Section
Stream valve 16 is closed, i.e., the emergency branch in oil channel structures by shielding, lead to by oil-free liquid stream.Repairing branch is by the first check valve 18
Flow direction limitation and be in an off state.Second switch valve 5 obtains electric but switches to disconnected state, so that oil-free in second branch
Liquid stream is logical.
(3) Passive Mode
As is illustrated by figs. 11 and 12, when oil channel structures described in the present embodiment are in Passive Mode, motor 6 and transfer tube 10
It is in halted state, i.e. driving oil circuit disconnects.Proportional pressure control valve 7 is in off-position, i.e. overflow oil circuit is in normally off state,
Proportional pressure control valve 7 under the mode serves only as safety valve use.First switch valve 4 and second switch valve 5 are all in off-position
(i.e. off state), then the first branch and second branch disconnect.
Under the subpattern, throttle valve 16 is opened, so that emergency branch enables.Under the mode, the size of damping force is taken
Certainly in the highest setting pressure of the throttling of fixed orifice and safety valve.
Passive Mode described in embodiment further comprises following two subpattern:
1. passively stretching out subpattern
As shown in figure 11, the piston 14 under the subpattern in hydraulic cylinder 1 is to when stretching out direction stretching, on the one hand, has bar cylinder
Oil liquid in PA flows back in pressure oil tank 15 after flowing through throttle valve 16 by branch of meeting an urgent need, and throttle valve 16 plays the oil liquid flowed through
Throttling action simultaneously generates damping force accordingly, damping force size depend on 16 parameter of throttle valve, have 14 area of piston of bar cylinder PA with
And disturbance velocity size.On the other hand, the oil liquid in pressure oil tank 15 enters in repairing branch and by after the first check valve 18
It is added in no bar cylinder PB.
Under the subpattern, motor 6 and 6 motor 6 of driving motor and transfer tube 10 are in the state that shuts down, then drive oil circuit
In off state.Proportional pressure control valve 7, first switch valve 4 and second switch valve 5 are all in off-position.Wherein, proportional overflow
Valve 7 makees safety valve use, when damping force is excessive and is more than the safe pressure value of the setting of proportional pressure control valve 7, proportional pressure control valve 7
(being used as safety valve) is opened, and has the part oil liquid in bar cylinder PA to flow back in pressure oil tank 15 by proportional pressure control valve 7, to rise
To shunting function, to ensure that overload situations or the excessive perturbed force of generation do not occur for entire oil channel structures and influence damper
Effectiveness in vibration suppression.
2. passively retracting subpattern
As shown in figure 12, the piston 14 under the subpattern in hydraulic cylinder 1 is to when stretching out direction stretching, on the one hand, without bar cylinder
Oil liquid in PB enters in third branch and by being added in bar cylinder PA after second one-way valve 19.On the other hand, due to nothing
14 area of piston of bar cylinder PB, which is greater than, 14 area of piston of bar cylinder PA, so without bar cylinder PB to the oil liquid body for having bar cylinder PA to supplement
Product then has oil liquid extra in bar cylinder PA to enter in emergency branch and flows through throttling more than there is the oil liquid volume supplemented needed for bar cylinder PA
Pressure oil tank 15 is flowed back to after valve 16.Joined by the damping force size that the throttling action of throttle valve 16 generates depending on throttle valve 16
Number, have bar cylinder PA 14 area of piston, without 14 area of bar cylinder PB piston and disturbance velocity size；
Under the subpattern, motor 6 and 6 motor 6 of driving motor and transfer tube 10 are in the state that shuts down, then drive oil circuit
In off state.Proportional pressure control valve 7, first switch valve 4 and second switch valve 5 are all in off-position.Wherein, proportional overflow
Valve 7 makees safety valve use, when damping force is excessive and is more than the safe pressure value of the setting of proportional pressure control valve 7, proportional pressure control valve 7
(being used as safety valve) is opened, and has the part oil liquid in bar cylinder PA to flow back in pressure oil tank 15 by proportional pressure control valve 7, to rise
To shunting function, the vibration damping of damper is influenced to avoid the excessive perturbed force of entire oil channel structures generation overload situations or generation
Effect.
As shown in the above, in oil channel structures described in the present embodiment, when 14 reciprocating process of piston, is divided into three
A control model amounts to ten subpatterns.The working condition of each component is as shown in table 1 under three control models.
The oil channel structures of 1 damper of table each component working condition under three kinds of control models
It can be seen that oil channel structures described in the present embodiment are in the passive mode, motor 6 and proportional pressure control valve 7 not work
Make, then damping force is uncontrollable, depends entirely on disturbance situation；Under half aggressive mode, proportional pressure control valve 7 actively carries out damping force
Size control, but control effect is limited；Under full aggressive mode, motor 6 and proportional pressure control valve 7 are worked at the same time, can be actively to resistance
Buddhist nun's power controls, and keeps damper work more smooth, control effect is also good compared with half aggressive mode very much.
Second aspect, as shown in Figure 1, damper described in the present embodiment includes lower oil path block 8 and subtracts as described above
The oil channel structures of vibration device.Lower oil path block 8 is fixed on 1 bottom of hydraulic cylinder of oil channel structures.Pressure oil tank in above-mentioned oil channel structures
15 and oil circuit composition be integrated in lower oil path block 8 respectively.Transfer tube 10 and motor 6 in above-mentioned oil channel structures are separately fixed at
The two sides of lower oil path block 8.Oil circuit in lower oil path block 8 is concentrated respectively between hydraulic cylinder 1, pressure oil tank 15 and transfer tube 10
It is connected by pipeline 9, passes through connection between transfer tube 10 and motor 6.Oil channel structures are integrated in lower oil circuit by the damper
In block 8, to simplify the overall structure of damper, structural reliability is improved.
Damper described in the present embodiment further includes upper oil path block 11, and upper oil path block 11 is fixed on the top of hydraulic cylinder 1, on
Safety overflow valve 12 and electromagnetic switch valve 13 are respectively provided on oil path block 11.In the oil channel structures of the damper, branch collection of meeting an urgent need
At in upper oil path block 11.Other oil circuits that oil circuit composition may include in damper are also integrated in one by oil path block 11 on this
Body improves structural reliability to further simplify the overall structure of damper.
In the present embodiment, it is fixed with attachment base in one end of hydraulic cylinder 1, lower oil path block 8 is fixed on the bottom of attachment base, oil
First switch valve 4, second switch valve 5 and proportional pressure control valve 7 in line structure, which respectively correspond, to be mounted on lower oil path block 8.
In the present embodiment, piston 14 includes piston only and piston rod, and one end of piston rod is from hydraulic cylinder 1 far from connection
The end of seat stretches to the inside of hydraulic cylinder 1, and piston only is connected to the end of piston rod, and can under the drive of piston rod
The inside of hydraulic cylinder 1 is reciprocating.On piston rod far from hydraulic cylinder 1 one end be equipped with back seat, the back seat of piston rod with it is hydraulic
Telescopic dust cover 2 is connected between cylinder 1.Dust cover 2 can protect hydraulic cylinder 1 and piston 14, prevent impurity from entering and shadow
Ring the work safety of hydraulic cylinder 1.
In the present embodiment, hydraulic cylinder 1, which is equipped on the end of attachment base and the back seat of piston rod, is respectively equipped with mounting base company
Fitting 3 is hydraulic pressure cylinder assembly with hydraulic cylinder 1 and piston 14, the both ends of hydraulic pressure cylinder assembly pass through respectively mounting base connector 3 with
Bogie is connected with the mounting base on vehicle body, so that damper is integrally attached on vehicle.For the ease of damper and bogie
Vibration transmitting between vehicle body, installation connecting element 3 includes attachment base and mandrel 17, and the end of attachment base is fixed on hydraulic cylinder group
On the end of part, attachment base center is equipped with an axis hole, attachment base by shaft hole sleeve outside the mandrel 17, with will pass through mandrel 17 with
Bogie is connected with the mounting base on vehicle body.
The third aspect, the present embodiment additionally provide a kind of vehicle, which includes at least one damper as described above.
The oil channel structures of damper in motion, can be switched to half aggressive mode under straight travel state, in curvilinear rows by the vehicle
It sails and the oil channel structures of damper is switched into full aggressive mode under state, and in certain danger situation by the oil circuit knot of damper
Structure switches to Passive Mode, to guarantee that vehicle can be in best driving status under any state, and meets in driving process
The best requirement of energy-saving and emission-reduction.
It further include control system in the vehicle of the present embodiment.Control system includes control unit and acceleration transducer.Its
In, the hydraulic cylinder 1 of damper is installed between bogie and vehicle body, and the power output of hydraulic cylinder 1 passes through transfer tube 10 and shock absorber oil
Each valve control in line structure, control unit is according to the acceleration transducer live signal being installed on vehicle body, by certain
Control algolithm, corresponding control command and drive command are issued respectively to each valve and transfer tube 10, to adjust liquid in real time
The damping force of cylinder pressure 1, so that the overall performance of vehicle reaches best under various driving conditions.The control system of the vehicle and subtract
The device that shakes uses separate design structure, effectively improves the reliability of vehicle structure.
In conclusion piston 14 makees reciprocal fortune in the inside of hydraulic cylinder 1 in the oil channel structures of the damper of the present embodiment
It is dynamic, it is to have bar cylinder PA and without bar cylinder PB, oil circuit and overflow oil circuit is driven to be connected in parallel on pressure jointly by the inside division of hydraulic cylinder 1
Fuel tank 15 and having between bar cylinder PA, the first branch and repairing branch are connected in parallel on pressure oil tank 15 and jointly without between bar cylinder PB, and
Two branches are located at outside hydraulic cylinder 1 and have been connected to bar cylinder PA and without between bar cylinder PB, and third branch is located in hydraulic cylinder 1 and connects
There is bar cylinder PA and without between bar cylinder PB.At least two control models may be implemented in the oil channel structures, specifically include full active mould
Formula and half aggressive mode can make the damper carry out real-time automatic adjusument, controlled by oil circuit and adjust hydraulic cylinder 1 in real time
Damping force so that the overall performance of vehicle is attained by optimum state under various driving conditions, especially vehicle exists
Carry out curve when driving, the damper can by active automatic adjusument, to greatly improve the stationarity of curve motion, and
And it also can effectively solve the rolling problem of car body.
The embodiment of the present invention is given for the purpose of illustration and description, and is not exhaustively or by this to send out
It is bright to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Choosing
Selecting and describe embodiment is and to make those skilled in the art to more preferably illustrate the principle of the present invention and practical application
It will be appreciated that the present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (12)
1. a kind of oil channel structures of damper, including hydraulic cylinder and piston, the piston is reciprocating in the inside of hydraulic cylinder,
To be to have bar cylinder and without bar cylinder by the inside division of the hydraulic cylinder, which is characterized in that the oil channel structures further include pressure oil
Case and oil circuit composition, the oil circuit composition include driving oil circuit, overflow oil circuit, the first branch, second branch and third branch, institute
It states driving oil circuit and overflow oil circuit is connected in parallel on the pressure oil tank and has between bar cylinder, the first branch and repairing branch circuit parallel connection
In the pressure oil tank and without between bar cylinder, the second branch, which is located at the outside of hydraulic cylinder and is connected to, described has bar cylinder and nothing
Between bar cylinder, the third branch, which is located at the inside of hydraulic cylinder and is connected to, described has bar cylinder and without between bar cylinder.
2. oil channel structures according to claim 1, which is characterized in that the driving branch road is in series with transfer tube, described
Transfer tube is connected with motor.
3. oil channel structures according to claim 2, which is characterized in that the driving branch road is in series with third check valve,
The overflow branch road is in series with proportional pressure control valve, is in series with first switch respectively in the first branch and the second branch
Valve and second switch valve, the repairing branch road are in series with the first check valve, and the third branch road is in series with second one-way valve.
4. oil channel structures according to claim 1-3, which is characterized in that the oil circuit composition further includes emergency branch
Road, the emergency branch circuit parallel connection the pressure oil tank and it is described have between bar cylinder, emergency branch road is parallel with throttle valve
And safety overflow valve.
5. a kind of damper, which is characterized in that including lower oil path block and damper according to any one of claims 1-4
Oil channel structures, the lower oil path block are fixed on the hydraulic cylinder bottom of the oil channel structures, the pressure oil tank of the oil channel structures and
Oil circuit composition is integrated in respectively in the lower oil path block, and the two sides of the lower oil path block are respectively fixed with transfer tube and motor.
6. damper according to claim 5, which is characterized in that one end of the hydraulic cylinder is fixed with attachment base, described
Lower oil path block is fixed on the bottom of the attachment base, be respectively equipped on the lower oil path block first switch valve, second switch valve and
Proportional pressure control valve.
7. damper according to claim 6, which is characterized in that the piston includes piston only and piston rod, described
End of the one end of piston rod from the hydraulic cylinder far from attachment base stretches to the inside of the hydraulic cylinder, the piston only
It is connected to the end of the piston rod, and can be reciprocating in the inside of the hydraulic cylinder under the drive of the piston rod.
8. damper according to claim 7, which is characterized in that after the piston rod is equipped with far from one end of hydraulic cylinder
Seat, is connected with telescopic dust cover between the back seat of the piston rod and the hydraulic cylinder.
9. damper according to claim 8, which is characterized in that the hydraulic cylinder is equipped with the end of attachment base and described
Mounting base connector is respectively equipped on the back seat of piston rod.
10. damper according to claim 9, which is characterized in that the damper further includes upper oil path block, the upper oil circuit
Block is fixed on the top of the hydraulic cylinder, is respectively provided with safety overflow valve and shut-off valve on the upper oil path block.
11. a kind of vehicle, which is characterized in that including at least one such as the described in any item dampers of claim 5-10.
12. a kind of oil circuit control method of damper, which is characterized in that subtracted based on as described in any one of claims 1-3
What the oil channel structures of vibration device proposed, this method comprises:
The control model of the oil channel structures includes full aggressive mode, half aggressive mode and Passive Mode；
When the oil channel structures switch to full aggressive mode, oil circuit and overflow oil circuit is driven to enable simultaneously；
When the oil channel structures switch to half aggressive mode, the overflow oil circuit is enabled, and the driving oil circuit does not enable；
When the oil channel structures switch to Passive Mode, the driving oil circuit and overflow oil circuit are not enabled.
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| CN201910537046.XA CN110374950B (en) | 2019-06-20 | 2019-06-20 | Oil way control method and oil way structure of shock absorber, shock absorber and vehicle |
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| CN201910537046.XA CN110374950B (en) | 2019-06-20 | 2019-06-20 | Oil way control method and oil way structure of shock absorber, shock absorber and vehicle |
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| CN114483873A (en) * | 2022-01-26 | 2022-05-13 | 陈昱洲 | Damping vibration attenuation device for series damping branch |
| WO2023202021A1 (en) * | 2022-04-19 | 2023-10-26 | 中车青岛四方机车车辆股份有限公司 | Yaw damper, yaw damper system and control method therefor, and railway vehicle |
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| CN110374950B (en) | 2021-02-09 |
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