CN103883663B - Shock absorber, shock absorber control system and automobile - Google Patents
Shock absorber, shock absorber control system and automobile Download PDFInfo
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- CN103883663B CN103883663B CN201210558566.7A CN201210558566A CN103883663B CN 103883663 B CN103883663 B CN 103883663B CN 201210558566 A CN201210558566 A CN 201210558566A CN 103883663 B CN103883663 B CN 103883663B
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Abstract
The invention discloses a kind of shock absorber, shock absorber includes working cylinder (1), working cylinder includes cylinder body (2) and piston rod (3), one end of cylinder body is provided with valve seat (21), during piston rod stretches into cylinder body from the other end of cylinder body, cylinder body is divided into rod chamber and rodless cavity by the piston of piston rod, wherein, the through-flow pipeline (4) of rod chamber and rodless cavity of the shock absorber also including UNICOM's working cylinder, it is formed at the guiding gutter (22) for communicating in valve seat and with through-flow pipeline, regulating valve (5) and the controlled motor (6) for controlling the circulation aperture of the regulating valve for adjusting flow is arranged in guiding gutter.Present invention also offers shock absorber control system and automobile.By above-mentioned technical proposal, shock absorber is allowed for can adapt in a variety of automobile running conditions, effective vibration damping and strength even rigid support are provided vehicle vehicle body, effectively prevent vehicle body sustained vibration, excessive pitching, excessively roll even rollover etc., it is ensured that the safety and steady operation of vehicle.
Description
Technical field
The present invention relates to vehicle chassis technology, in particular it relates to a kind of shock absorber, shock absorber control system and automobile.
Background technology
With the continuous improvement developed rapidly with living standards of the people of automobile industry, ride comfort of the people to automobile
The requirement more and more higher of the security of property, occupant and goods.
At present, in automobile chassis, connect vehicle bridge and vehicle body usually using shock absorber to suppress vibration.In road bump
When, although vibration absorbing spring can filter the vibration on road surface, but because the reciprocating motion of spring itself still can cause vehicle body
Pitch, shock absorber jumps for suppressing this spring.If the resistance of shock absorber is too small, vehicle body will be jumped up and down
Jump, if the resistance of shock absorber is too big, hinders spring normal work.
Extensively using hydraulic buffer in the suspension system of automobile.Its principle is, when vehicle frame and vehicle bridge are due to vibration
When doing relatively reciprocating motion, the piston reciprocal telescopic movement in the cylinder barrel of shock absorber therewith, the fluid in damper shelf body is just anti-
Again another inner chamber is flowed into from an inner chamber by some narrow holes.Now, liquid and the friction of inwall and liquid point
Friction in son just forms the damping force to vibrating, so as to produce the effect for suppressing to vibrate.
But existing shock absorber is usually mechanical structure, therefore its resistance for producing is fixed, it is difficult to adapt to it is various not
Same automobile running condition, especially automobile are under the limiting conditions such as zig zag, brake hard and anxious acceleration, it is easy to cause car
Rollover or pitching etc..
The content of the invention
It is an object of the invention to provide a kind of shock absorber, the shock absorber can be adjusted according to the travel situations of automobile and damped
Power.
To achieve these goals, the present invention provides a kind of shock absorber, and the shock absorber includes working cylinder, and the working cylinder includes
Cylinder body and piston rod, one end of the cylinder body are provided with valve seat, and the piston rod stretches into the cylinder from the other end of the cylinder body
In body, and the cylinder body is divided into rod chamber and rodless cavity by the piston of the piston rod, wherein, the shock absorber also includes connection
Lead to the rod chamber of the working cylinder and the through-flow pipeline of rodless cavity, be formed at what is communicated in the valve seat and with the through-flow pipeline
Guiding gutter, it is arranged in the guiding gutter for adjusting the regulating valve of flow and the control for controlling the circulation aperture of the regulating valve
Motor processed.
Preferably, the regulating valve includes fixed valve plate, moving valve plate and through the fixed valve plate and the center of the moving valve plate
And the rotary shaft being fixedly connected with the moving valve plate, there is fixed valve plate arcuate socket on the fixed valve plate, have on the moving valve plate
Can all be overlapped with the fixed valve plate arcuate socket, partially overlapped or misaligned moving valve plate arcuate socket.
Preferably, also there is the alignment pin that can be moved along the fixed valve plate arcuate socket, the positioning on the moving valve plate
Pin, fixed valve plate arcuate socket and moving valve plate arcuate socket are all disposed within the radius identical circumference with the rotary shaft as the center of circle, institute
Alignment pin is stated in the fixed valve plate arcuate socket and can be moved along the fixed valve plate arcuate socket with the rotation of the moving valve plate.
Preferably, the arc length of the fixed valve plate arcuate socket is more than the arc length of the moving valve plate arcuate socket, when the alignment pin
During positioned at the first end of the fixed valve plate arcuate socket, institute is worked as in all being overlapped with fixed valve plate arcuate socket for the moving valve plate arcuate socket
When stating alignment pin positioned at the second end of the fixed valve plate arcuate socket, the moving valve plate arcuate socket is misaligned with fixed valve plate arcuate socket.
Preferably, the displacement transducer of the position for detecting the piston rod is provided with the cylinder body, the displacement is passed
Sensor is electrically connected with the controlled motor.
Preferably, the flow that the flow for detecting the fluid in the through-flow pipeline is provided with the through-flow pipeline is passed
Sensor, the flow sensor is electrically connected with the controlled motor.
The present invention a kind of shock absorber control system is also provided, wherein, the shock absorber control system include controller and according to
Shock absorber of the present invention, the controller includes input module, processing module and control module, the control module and the control
Motor electrical connection processed,
The input module is used to receive the input signal for representing automobile running condition, and the input signal is sent into institute
State processing module；
The processing module is used to produce vibration reduction control signal according to the input signal that the input module is received, and will
The vibration reduction control signal is sent to the control module；
The control module is used to receive the vibration reduction control signal, and correspondingly controls the controlled motor.
Preferably, the displacement transducer of the position for detecting the piston rod is provided with the cylinder body, the displacement is passed
Sensor is electrically connected with the input module,
The input module is used to receive and comes from the piston position signal of institute's displacement sensors, and by the piston position
Signal is sent to processing module；
The processing module is used to produce vibration reduction control signal according to the piston position signal, and the vibration damping is controlled to believe
Number it is sent to the control module.
Preferably, the flow that the flow for detecting the fluid in the through-flow pipeline is provided with the through-flow pipeline is passed
Sensor, the flow sensor is electrically connected with the input module,
The input module is used to receive the flow signal for coming from the flow sensor, and the flow signal is transmitted
To processing module；
The processing module is used to produce vibration reduction control signal according to the flow signal, and the vibration reduction control signal is passed
It is sent to the control module.
The present invention also provides a kind of automobile, wherein, the automobile includes shock absorber control system of the present invention.
By above-mentioned technical proposal, the structure of shock absorber is simpler, and can realize to the damping force of shock absorber
Control.This makes it possible to cause shock absorber to can adapt in a variety of automobile running conditions, provide effective to vehicle vehicle body
Vibration damping and strength even rigid support, effectively prevent vehicle body sustained vibration, excessive pitching, excessively roll even rollover etc.,
Ensure the safety and steady operation of vehicle.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute the part of specification, with following tool
Body implementation method is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the floor map of the regulating valve according to one embodiment of the present invention；
Fig. 2 is the schematic cross-section of the line A-A interception along Fig. 1；
Fig. 3 is the floor map of the regulating valve according to another implementation method of the invention；
Fig. 4 is the schematic cross-section of the line B-B interception along Fig. 3；
Fig. 5 is the axis side view according to regulating valve of the invention；
Fig. 6 is the schematic diagram of the shock absorber control system according to the preferred embodiment for the present invention；
Fig. 7 is the schematic diagram of the controller according to the preferred embodiment for the present invention；
Fig. 8 is the schematic diagram of the shock absorber according to the preferred embodiment for the present invention.
Description of reference numerals
The cylinder body of 1 working cylinder 2
The guiding gutter of 21 valve seat 22
The through-flow pipeline of 3 piston rod 4
The fixed valve plate of 5 regulating valve 51
The rotary shaft of 52 moving valve plate 53
The moving valve plate arcuate socket of 54 fixed valve plate arcuate socket 55
The normal open hole of 56 alignment pin 57
The displacement transducer of 6 controlled motor 7
8 flow sensors
Specific embodiment
Specific embodiment of the invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
In the present invention, in the case where opposite explanation is not made, the noun of locality for using should combine technical side of the invention
Case, based on context and/or Figure of description is understood.
The present invention provides a kind of shock absorber, and the shock absorber includes working cylinder 1, and the working cylinder 1 includes cylinder body 2 and piston rod 3,
One end of the cylinder body 2 is provided with valve seat 21, and the piston rod 3 is stretched into the cylinder body 2 from the other end of the cylinder body 2, and
Be rod chamber and rodless cavity by 2 points of the cylinder body, wherein, the shock absorber also include the rod chamber of working cylinder 1 described in UNICOM and
The through-flow pipeline 4 of rodless cavity, the guiding gutter 22 for being formed in the valve seat 21 and being communicated with the through-flow pipeline 4, it is arranged at institute
Stating is used for the regulating valve 5 and the controlled motor 6 for controlling the circulation aperture of the regulating valve 5 that adjust flow in guiding gutter 22.
Shock absorber of the invention includes working cylinder 1, and working cylinder 1 includes cylinder body 2 and piston rod 3, is set in one end of cylinder body 2
There is valve seat 21, piston rod 3 is extend into cylinder body 2 from the other end.Wherein, 2 points of cylinder body is two chambers, i.e. rod chamber by piston rod 3
And store fluid in rodless cavity, and the rod chamber and rodless cavity of working cylinder 1.
Technology according to the present invention scheme, the shock absorber includes through-flow pipeline 4, and guiding gutter 22 is formed with valve seat 21,
Guiding gutter 22 namely is formed with the side of rodless cavity, the guiding gutter 22 and the UNICOM of through-flow pipeline 4, for having for working cylinder 2
Rod cavity and rodless cavity.When piston rod 3 is moved in cylinder body 2, fluid passes through guiding gutter 22 and through-flow pipeline 4 having in cylinder body 2
Flowed between rod cavity and rodless cavity.The regulating valve 5 of the flow for adjusting fluid is provided with guiding gutter 22.
In use, when the piston rod 3 is relative to outwards (upward i.e. shown in Fig. 1) motion of the cylinder body 2
When, pressure rise in the rod chamber of cylinder body 2, pressure reduction in rodless cavity, the fluid of rod chamber passes through through-flow pipeline 4 and guiding gutter
22 enter rodless cavity, due to that can adjust the regulating valve 5 being arranged in the guiding gutter 22 by controlled motor 6, to adjust
The flow of the fluid is saved, so as to adjust the size of the damping force of shock absorber.
Similarly, when the piston rod 3 is relative to inwardly (downward i.e. shown in Fig. 1) motion of the cylinder body 2, cylinder body
Pressure rise in 2 rodless cavity, pressure reduction in rod chamber, the fluid of rodless cavity enters also by guiding gutter 22 and through-flow pipeline 4
Enter rod chamber, similarly, the regulating valve 5 being arranged in guiding gutter 22 is adjusted by controlled motor 6, it is possible to adjust shock absorber
The size of damping force.
By above-mentioned technical proposal, the structure of shock absorber is simpler, and can realize to the damping force of shock absorber
Control.This makes it possible to cause shock absorber to can adapt in a variety of automobile running conditions, provide effective to vehicle vehicle body
Vibration damping and strength even rigid support, effectively prevent vehicle body sustained vibration, excessive pitching, excessively roll even rollover etc.,
Ensure the safety and steady operation of vehicle.
Preferably, the regulating valve 5 includes fixed valve plate 51, moving valve plate 52 and through the fixed valve plate (51) and the dynamic valve
The center of piece 52 and the rotary shaft 53 being fixedly connected with the moving valve plate 52, have fixed valve plate arcuate socket on the fixed valve plate 51
54, having on the moving valve plate 52 can all overlap with the fixed valve plate arcuate socket 54, partially overlap or misaligned dynamic valve
Piece arcuate socket 55.
Wherein, the fixed valve plate 51 and the moving valve plate 52 can as needed be formed as variously-shaped, it is preferable that equal shape
As discoid, and the two size is corresponding, can snugly be assembled together each other.
The rotary shaft 53 can first be made for independent component, then again by various modes well known in the art, such as
Welding, bolt connection, bonding etc. make it be fixedly connected on through the state at the center of the moving valve plate 52 and the moving valve plate 52
Together, or can also be as shown in Fig. 2 be directly made the rotary shaft 53 with the moving valve plate 52 and be integrated.Then, pass through
In the through hole that is centrally formed of the fixed valve plate 51, and make the rotary shaft 53 through the through hole, can be by the fixed valve plate
51 are sleeved in the rotary shaft 53 and are fitted with the moving valve plate 52, so as to by the fixed valve plate 51, moving valve plate 52 and rotate
Axle 53 is fitted together, and the rotary shaft 53 can be relative to 51 turns of the fixed valve plate together with the moving valve plate 52
It is dynamic.
The fixed valve plate arcuate socket 54 on moving valve plate arcuate socket 55 and the fixed valve plate 51 on the moving valve plate 52 has base
This identical groove width, and the radial distance at the respective place valve block center of their distances is of substantially equal, therefore, with the dynamic valve
The rotation of piece 52, the moving valve plate arcuate socket 55 and the fixed valve plate arcuate socket 54 can be realized overlapping wholly or in part, i.e. institute
Stating moving valve plate arcuate socket 55 can realize connecting wholly or in part with the fixed valve plate arcuate socket 54.
Thus, drive the moving valve plate 52 to rotate by rotating the rotary shaft 53, can make on the moving valve plate 52
Moving valve plate arcuate socket 55 and the fixed valve plate 51 on the overlapping area of fixed valve plate arcuate socket 54 linearly change, that is to say, that
When the regulating valve 5 is arranged in the hydraulic buffer of automobile, fluid can be made by rotating the moving valve plate 52
Passage section linear change, therefore control can be adjusted to the flow of the fluid in shock absorber such that it is able to shock absorber
Damping force be adjusted control, with reach preferably suppress spring vibrate effect so that further improve automobile seating
Comfortableness.
Preferably, also there is the alignment pin 56 that can be moved along the fixed valve plate arcuate socket 54, institute on the moving valve plate 52
State the radius phase that alignment pin 56, fixed valve plate arcuate socket 54 and moving valve plate arcuate socket 55 are all disposed within the rotary shaft 53 as the center of circle
On same circumference, the alignment pin 56 is arranged in the fixed valve plate arcuate socket 54 and can be with the rotation of the moving valve plate 52 along institute
Fixed valve plate arcuate socket 54 is stated to move.
The alignment pin 56 can be by various modes well known in the art, such as welding, bolt connection, the fixed company of bonding
It is connected on the moving valve plate 52, or can also be directly integrally formed with the moving valve plate 52.When by the fixed valve plate 51, dynamic valve
When piece 52 and rotary shaft 53 are fitted together, the alignment pin 56 will just be inserted in the fixed valve plate arcuate socket of the fixed valve plate 51
In 54, therefore when the moving valve plate 52 is rotated, the alignment pin 56 will be moved along the fixed valve plate arcuate socket 54, and work as institute
When stating alignment pin 56 and moving to the two-end-point position of the fixed valve plate arcuate socket 54, the moving valve plate arcuate socket will be corresponded respectively to
55 with the maximum overlapping area of the fixed valve plate arcuate socket 54 and minimum overlapping area.The alignment pin 56 is thus utilized, can
Carried out between the moving valve plate arcuate socket 55 and the maximum overlapping area and minimum overlapping area of the fixed valve plate arcuate socket 54
Adjustment, i.e., be adjusted between the maximum passage section and minimum passage section of fluid, namely be can be provided in shock absorber
Moving valve plate 52 is adjusted between the angle of maximum damping and the corresponding moving valve plate 52 of minimum damping.
As shown in Fig. 3, Fig. 4 and Fig. 5, in another embodiment of the present invention, the regulating valve 5 also includes insertion institute
State the normal open hole 57 of fixed valve plate 51 and the moving valve plate 52.The normal open hole 57 can be arranged as required to multiple, and it is acted on
In when the moving valve plate arcuate socket 55 and the fixed valve plate arcuate socket 54 it is completely misaligned, that is to say, that the moving valve plate arcuate socket
55 when not connecting completely with the fixed valve plate arcuate socket 54, and the fluid of the fixed valve plate 51 and the both sides of the moving valve plate 52 can lead to
Cross the normal open hole 57 to be circulated, to play damping action.
But, above-mentioned normal open hole 57 can optionally be set according to actual conditions.As shown in figure 1, of the invention excellent
Select in implementation method and be not provided with the normal open hole 57, and moving valve plate arcuate socket 55 and fixed valve plate arcuate socket 54 can not weighed completely
Close, that is to say, that can completely be blocked guiding gutter 22 by the regulating valve 5, so that the rod chamber and rodless cavity of shock absorber
Between can be fully disconnected.Need to produce larger damping force to shock absorber in some cases, or even need the oil of shock absorber
Roadlock is disconnected to make it just as cylinder body, and now the damping force of shock absorber is far longer than nominal situation damping force, to play effective vibration damping
Effect, is preventing vehicle body sustained vibration, excessive pitching, is excessively rolling and even tumble, it is ensured that vehicle safety even running aspect
There is significantly more efficient effect.
Preferably, the arc length of the fixed valve plate arcuate socket 54 is more than the arc length of the moving valve plate arcuate socket 55, when described fixed
Position pin 56 be located at the fixed valve plate arcuate socket 54 first end when, the moving valve plate arcuate socket 55 all with fixed valve plate arcuate socket
54 overlap, when the alignment pin 56 is located at the second end of the fixed valve plate arcuate socket 54, the moving valve plate arcuate socket 55 with it is fixed
Valve block arcuate socket 54 is misaligned.
Overlapping area when this preferred embodiment is also located at extreme position to alignment pin 56 is defined, and works as alignment pin
56 when positioned at the two ends of fixed valve plate arcuate socket 54, and the moving valve plate arcuate socket 55 is integrated with the faying surface of fixed valve plate arcuate socket 54
Ju You not maximum and minimum value.In the preferred embodiment, as shown in Fig. 2 because the arc length of moving valve plate arcuate socket 55 is small
In the arc length of fixed valve plate arcuate socket 54, therefore when alignment pin 56 is located at the first end of fixed valve plate arcuate socket 54, moving valve plate arc
Hole 55 fully fall in in fixed valve plate arcuate socket 54, so, moving valve plate arcuate socket 55 all with the phase of fixed valve plate arcuate socket 54
Correspondence, that is, the moving valve plate arcuate socket 55 has maximum with the overlapping area of fixed valve plate arcuate socket 54, as shown in Figure 2
Implementation method in, when alignment pin 56 is located at the first end of fixed valve plate arcuate socket 54, moving valve plate arcuate socket 55 it is fixed away from this
One end of position pin 56 is corresponding with the second end of fixed valve plate arcuate socket 54；When alignment pin 56 is located at the second of fixed valve plate arcuate socket 54
During end, moving valve plate arcuate socket 55 is fully fallen in outside fixed valve plate arcuate socket 54, so, moving valve plate arcuate socket 55 and fixed valve plate arc
Hole 54 is completely misaligned, i.e., described moving valve plate arcuate socket 55 has minimum value with the overlapping area of fixed valve plate arcuate socket 54.
In the embodiment illustrated in fig. 2, it is preferable that the alignment pin 56 is with moving valve plate arcuate socket 55 away from the positioning
Arc length between one end of pin 56 is equal with the arc length of fixed valve plate arcuate socket 54, and the structure just can realize above-mentioned operation.
Preferably, the displacement transducer 7 of the position for detecting the piston rod 3, the displacement are provided with the cylinder body 2
Sensor 7 is electrically connected with the controlled motor 6.
In the preferred embodiment, displacement transducer 7 is provided with cylinder body 2, the displacement transducer 7 can detect work
The position of stopper rod 3, the i.e. actually located position in whole stroke of piston rod 3, by detecting the physical location of the piston rod 3,
May determine that the working condition residing for the shock absorber, and the comprehensively size of the damping force produced by shock absorber, the traveling feelings of automobile
The conditions such as condition calculate the size of the damping force of the shock absorber being actually needed, so as to be adjusted to shock absorber.
In the present embodiment, displacement transducer 7 is electrically connected with controlled motor 6, in actual applications, displacement transducer 7
Generally it is electrically connected with the controller so as to position signalling is sent into controller, controller is electrically connected with controlled motor 6 again, so that right
Controlled motor 6 is controlled, this makes it possible to the piston rod detected according to displacement transducer 7 using controller equal controller
3 position signalling is controlled to controlled motor 6, so as to control to adjust valve 5 to adjust the flow in guiding gutter 22, that is, adjusts
Flow in through-flow pipeline 4, to play the control to the damping force of shock absorber.
Preferably, the flow of the flow for detecting the fluid in the through-flow pipeline 4 is provided with the through-flow pipeline 4
Sensor 8, the flow sensor 8 is electrically connected with the controlled motor 6.
In the preferred embodiment, flow sensor 8 is set in through-flow pipeline 4, and the flow sensor is used to detect
Pass through the volume of the fluid of the through-flow pipeline 4 in the flow of the fluid in through-flow pipeline 4, i.e. unit interval, it is through-flow by detecting
The flow of the fluid in pipeline 4, it can be determined that the working condition residing for the shock absorber, and the damping force produced by comprehensive shock absorber
Size, the condition such as travel situations of automobile calculates the size of the damping force of the shock absorber being actually needed, so as to shock absorber
It is adjusted.
In the present embodiment, flow sensor 8 is electrically connected with controlled motor 6, so as to directly be examined by flow sensor 8
Flow signal in the through-flow pipeline 4 for measuring is controlled to controlled motor 6, so as to control to adjust valve 5 to adjust guiding gutter
Flow in 22, that is, adjust the flow in through-flow pipeline 4, to play the control to the damping force of shock absorber.
It should be noted that displacement transducer 7 and flow biography have been respectively adopted in two implementation methods mentioned above
Sensor 8 is detected come the flow of position respectively to piston rod 3 and the fluid of through-flow pipeline 4, so as to realize to shock absorber
The judgement of working condition.But in actual applications, can simultaneously using the He of displacement transducer 7 of the position for detecting piston rod 3
The flow sensor 8 of the flow of the fluid of through-flow pipeline 4 is detected, the work shape of shock absorber thus can be more accurately judged
State, such as flow sensor 8 detect the flow increase of the fluid in through-flow pipeline 4, and displacement transducer 7 detects piston
Bar 3 is moved towards to the direction shunk in cylinder body 2, then can more accurately judge that now vehicle is subject to upward impulsive force,
Vehicle bridge is post towards body movement, so that regulating valve 5 is adjusted according to actual conditions, to adjust the stream of guiding gutter 22
Amount, that is, the flow in through-flow pipeline 4 is adjusted, so that the damping force of shock absorber is adjusted.
Certainly, how the present invention detects that the working condition of shock absorber is not any limitation as, and has been only exemplified by utilizing displacement herein
The position of the detection piston rod 3 of sensor 7 and detect that using flow sensor 8 flow of fluid of through-flow pipeline 4 is preferable to carry out
Mode, and both be used in conjunction with it is more preferable to the judgement effect of shock absorber working condition.Furthermore it is also possible to be answered according to actual
It is used in combination other detection means with situation to detect shock absorber, so as to judge the working condition of shock absorber.
The present invention a kind of shock absorber control system is also provided, wherein, the shock absorber control system include controller and according to
Shock absorber of the present invention, the controller includes input module, processing module and control module, the control module and the control
Motor processed 6 is electrically connected,
The input module is used to receive the input signal for representing automobile running condition, and the input signal is sent into institute
State processing module；
The processing module is used to produce vibration reduction control signal according to the input signal that the input module is received, and will
The vibration reduction control signal is sent to the control module；
The control module is used to receive the vibration reduction control signal, and correspondingly controls the controlled motor 6.
The shock absorber control system that the present invention is provided includes shock absorber and controller, and the shock absorber is according to of the invention excellent
The shock absorber described in implementation method is selected, the regulating valve 5 of the shock absorber has the knot according to the preferred embodiment for the present invention
Structure (its feature, working method and technique effect will not be repeated here), so that the regulating valve 5 can be by controlled motor 6
To adjust.Certain regulating valve 5 may also be using any applicable structure in the prior art to realize.
The input module of controller receives the input signal for representing automobile running condition, and the input signal can be by detection
Device is detected, it is also possible to by artificially or other modes are obtained, being such as input into by operating personnel and representing garage
The signal of situation is sailed, input module is sent to processing module after receiving the input signal.Processing module is according to the input signal
Vibration reduction control signal is produced, and the vibration reduction control signal is sent to control module.The control module is used to receive the vibration damping control
Signal processed, and the controlled motor 6 is correspondingly controlled according to the vibration reduction control signal, regulating valve 5 is controlled, so as to adjust
The size of the damping force of shock absorber.
It should be noted that by the detection to automobile running condition, those skilled in the art can be according to physical principle
The controlled quentity controlled variable to shock absorber is readily determined with experience etc., and can also be according to a variety of automobile running conditions come phase
The size of the damping force of the shock absorber required for answering ground to know, and can be right with what physical principle was set up based on experience value by this
Should be related to and be stored in processing module, be adjusted with to regulating valve 5, so as to the damping force to shock absorber is adjusted.For example,
In automobile emergency brake, vehicle body leans forward, and amplitude is larger, and now the piston rod of the shock absorber of propons is retracted, the shock absorber of back axle
Piston rod stretches out, and the flow in the through-flow pipeline 4 of the shock absorber of propons and back axle all increases suddenly, should now reduce regulating valve
Aperture so that flow in guiding gutter reduces, so that the damping force that shock absorber is produced can quickly achieve needs.At other
In the case of urgent change automobile balance transport condition, regulating valve is correspondingly adjusted, dashed forward with reducing this transport condition
Right trend of change, but speed for then being changed by the transport condition of the degree of specific regulation etc. determines.Therefore, in the present invention
Above-mentioned corresponding relation is not limited, those skilled in the art can set up the correspondence and close according to existing knowledge and experience
It is and carries out appropriate amendment, and any present invention that can be used in is adjusted to regulating valve 5, so as to the damping force to shock absorber
It is adjusted.
Preferably, the displacement transducer 7 of the position for detecting the piston rod 3, the displacement are provided with the cylinder body 2
Sensor 7 is electrically connected with the input module,
The input module is used to receive and comes from the piston position signal of institute's displacement sensors 7, and by piston position
Confidence number is sent to processing module；
The processing module is used to produce vibration reduction control signal according to the piston position signal, and the vibration damping is controlled to believe
Number it is sent to the control module.
In the preferred embodiment, displacement transducer 7 is provided with cylinder body 2, the displacement transducer 7 can detect work
The piston position signal of stopper rod 3, that is, represent the signal of the actually located position in whole stroke of piston rod 3, should by detection
The physical location of piston rod 3, it can be determined that the working condition residing for the shock absorber, and the piston position signal is sent to input
The piston position signal is sent to processing module by module, input module, and processing module is produced according to the piston position signal and subtracted
Shake control signal, and the vibration reduction control signal is sent to control module, control module is further according to the vibration reduction control signal to control
Motor processed 6 is adjusted.
It should be noted that processing module also may be used when vibration reduction control signal is produced according to the piston position signal
With the size of the damping force produced by comprehensive shock absorber, the condition such as the travel situations of automobile, so that vibration reduction control signal is more smart
Really.
In the present embodiment, displacement transducer 7 is electrically connected by controller with controlled motor 6, and controller is according to displacement
The position signalling of the piston rod 3 that sensor 7 is detected is controlled to controlled motor 6, so as to control to adjust valve 5 be led with adjusting
Flow in chute 22, that is, adjust the flow in through-flow pipeline 4, to play the control to the damping force of shock absorber.
Preferably, the flow of the flow for detecting the fluid in the through-flow pipeline 4 is provided with the through-flow pipeline 4
Sensor 8, the flow sensor 8 is electrically connected with the input module,
The input module is used to receive the flow signal for coming from the flow sensor 8, and the flow signal is passed
It is sent to processing module；
The processing module is used to produce vibration reduction control signal according to the flow signal, and the vibration reduction control signal is passed
It is sent to the control module.
In the preferred embodiment, flow sensor 8 is set in through-flow pipeline 4, and the flow sensor is used to detect
Pass through the volume of the fluid of the through-flow pipeline 4 in the flow of the fluid in through-flow pipeline 4, i.e. unit interval, it is through-flow by detecting
The flow of the fluid in pipeline 4, it can be determined that the working condition residing for the shock absorber, and the flow signal is sent to input mould
The piston position signal is sent to processing module by block, input module, and processing module produces vibration damping according to the piston position signal
Control signal, control module is sent to by the vibration reduction control signal, and control module is further according to the vibration reduction control signal to control electricity
Machine 6 is adjusted.
It should be noted that processing module according to the flow signal when vibration reduction control signal is produced, it is also possible to comprehensive
The conditions such as the size of the damping force produced by shock absorber, the travel situations of automobile are closed, so that vibration reduction control signal is more accurate.
In the present embodiment, flow sensor 8 is electrically connected by controller with controlled motor 6, and controller is according to flow
Flow signal in the through-flow pipeline 4 that sensor 8 is detected is controlled to controlled motor 6, so as to control to adjust valve 5 to adjust
Flow in whole guiding gutter 22, that is, adjust the flow in through-flow pipeline 4, to play the control to the damping force of shock absorber.
It should be noted that displacement transducer 7 and flow biography have been respectively adopted in two implementation methods mentioned above
Sensor 8 is detected come the flow of position respectively to piston rod 3 and the fluid of through-flow pipeline 4, so as to realize to shock absorber
The judgement of working condition, and corresponding detection signal is sent to controller.But in actual applications, can simultaneously using inspection
The flow sensor 8 of the flow of the displacement transducer 7 of the position of piston rod 3 and the fluid of the through-flow pipeline 4 of detection is surveyed, controller
Input module receives piston position signal and flow signal, thus can more accurately judge the working condition of shock absorber,
Such as flow sensor 8 detects the flow increase of the fluid in through-flow pipeline 4, and displacement transducer 7 detects piston rod 3
Moved towards to the direction shunk in cylinder body 2, then can more accurately judge that now vehicle is subject to upward impulsive force, vehicle bridge
Post towards body movement, input module is sent to processing module after receiving the detection signal, and processing module is according to automobile
Transport condition produce vibration reduction control signal, so as to be adjusted to regulating valve 5, to adjust the flow of guiding gutter 22, also
It is the flow in the through-flow pipeline 4 of adjustment, so that the damping force of shock absorber is adjusted.
Certainly, how the present invention detects that the working condition of shock absorber is not any limitation as, and has been only exemplified by utilizing displacement herein
The position of the detection piston rod 3 of sensor 7 and detect that using flow sensor 8 flow of fluid of through-flow pipeline 4 is preferable to carry out
Mode, and both be used in conjunction with it is more preferable to the judgement effect of shock absorber working condition.Furthermore it is also possible to be answered according to actual
It is used in combination other detection means with situation to detect shock absorber, so as to judge the working condition of shock absorber.
The present invention also provides a kind of automobile, wherein, the automobile includes shock absorber control system of the present invention.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in range of the technology design of the invention, various letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy is no longer separately illustrated.
Additionally, can also be combined between a variety of implementation methods of the invention, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (9)
1. a kind of shock absorber, the shock absorber includes working cylinder (1), and the working cylinder (1) includes cylinder body (2) and piston rod (3), described
One end of cylinder body (2) is provided with valve seat (21), and the piston rod (3) stretches into the cylinder body (2) from the other end of the cylinder body (2)
In, and the cylinder body (2) is divided into rod chamber and rodless cavity by the piston of the piston rod (3), it is characterised in that the vibration damping
Device also includes the through-flow pipeline (4) of the rod chamber of working cylinder (1) described in UNICOM and rodless cavity, is formed in the valve seat (21) simultaneously
The guiding gutter (22) that is communicated with the through-flow pipeline (4), regulating valve for adjusting flow is arranged in the guiding gutter (22)
(5) and for controlling the controlled motor (6) of the circulation aperture of the regulating valve (5), it is provided with for detecting on the cylinder body (2)
The displacement transducer (7) of the position of piston rod (3) is stated, the displacement transducer (7) is electrically connected with the controlled motor (6).
2. shock absorber according to claim 1, it is characterised in that the regulating valve (5) includes fixed valve plate (51), moving valve plate
(52) and through the center of the fixed valve plate (51) and the moving valve plate (52) and with the moving valve plate (52) it is fixedly connected
Rotary shaft (53), has fixed valve plate arcuate socket (54) on the fixed valve plate (51), having on the moving valve plate (52) can be with institute
Fixed valve plate arcuate socket (54) is stated all to overlap, partially overlap or misaligned moving valve plate arcuate socket (55).
3. shock absorber according to claim 2, it is characterised in that also having on the moving valve plate (52) can be along described fixed
The alignment pin (56) of valve block arcuate socket (54) motion, the alignment pin (56), fixed valve plate arcuate socket (54) and moving valve plate arcuate socket
(55) it is all disposed within the radius identical circumference with the rotary shaft (53) as the center of circle, the alignment pin (56) is installed in described
In fixed valve plate arcuate socket (54) and can be mobile along the fixed valve plate arcuate socket (54) with the rotation of the moving valve plate (52).
4. shock absorber according to claim 3, it is characterised in that the arc length of the fixed valve plate arcuate socket (54) is more than described
The arc length of moving valve plate arcuate socket (55), when first end of the alignment pin (56) positioned at the fixed valve plate arcuate socket (54), institute
All being overlapped with fixed valve plate arcuate socket (54) for moving valve plate arcuate socket (55) is stated, when the alignment pin (56) is positioned at the fixed valve plate
During the second end of arcuate socket (54), the moving valve plate arcuate socket (55) is misaligned with fixed valve plate arcuate socket (54).
5. shock absorber according to claim 1, it is characterised in that be provided with for detecting in the through-flow pipeline (4)
State the flow sensor (8) of the flow of fluid in through-flow pipeline (4), the flow sensor (8) and the controlled motor (6) electricity
Connection.
6. a kind of shock absorber control system, it is characterised in that the shock absorber control system includes controller and according to aforesaid right
It is required that the shock absorber in 1-4 described in any one, the controller includes input module, processing module and control module, the control
Module is electrically connected with the controlled motor (6),
The input module is used to receive the input signal for representing automobile running condition, and the input signal is sent into the place
Reason module；
The processing module is used to produce vibration reduction control signal according to the input signal that the input module is received, and this is subtracted
Control signal of shaking is sent to the control module；
The control module is used to receive the vibration reduction control signal, and correspondingly controls the controlled motor (6).
7. shock absorber control system according to claim 6, it is characterised in that be provided with for examining on the cylinder body (2)
The displacement transducer (7) of the position of the piston rod (3) is surveyed, the displacement transducer (7) is electrically connected with the input module,
The input module comes from the piston position signal of institute's displacement sensors (7) for reception, and by the piston position
Signal is sent to processing module；
The processing module is used to produce vibration reduction control signal according to the piston position signal, and the vibration reduction control signal is passed
It is sent to the control module.
8. the shock absorber control system according to claim 6 or 7, it is characterised in that be provided with the through-flow pipeline (4)
Flow sensor (8) for detecting the flow of the fluid in the through-flow pipeline (4), the flow sensor (8) is defeated with described
Enter module electrical connection,
The input module comes from the flow signal of the flow sensor (8) for reception, and the flow signal is transmitted
To processing module；
The processing module is used to produce vibration reduction control signal according to the flow signal, and the vibration reduction control signal is sent to
The control module.
9. a kind of automobile, it is characterised in that the automobile includes the shock absorber control described in any one in the claims 6-8
System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210558566.7A CN103883663B (en) | 2012-12-20 | 2012-12-20 | Shock absorber, shock absorber control system and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210558566.7A CN103883663B (en) | 2012-12-20 | 2012-12-20 | Shock absorber, shock absorber control system and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103883663A CN103883663A (en) | 2014-06-25 |
| CN103883663B true CN103883663B (en) | 2017-06-06 |
Family
ID=50952724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210558566.7A Active CN103883663B (en) | 2012-12-20 | 2012-12-20 | Shock absorber, shock absorber control system and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103883663B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402252A (en) * | 2016-11-04 | 2017-02-15 | 江苏金泰堡机械制造有限公司 | Absorber base device with continuously adjustable damping |
| CN111396495A (en) * | 2020-03-25 | 2020-07-10 | 桂林电子科技大学 | Shock absorber and commercial car suspension |
| CN112665673B (en) * | 2021-01-08 | 2023-05-23 | 临沂汇泉仪表有限公司 | Intelligent water meter with water flow regulating function |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2342729A (en) * | 1942-10-30 | 1944-02-29 | Nevin S Focht | Hydraulic shock absorber |
| DE3446133A1 (en) * | 1984-12-18 | 1986-06-19 | Fichtel & Sachs Ag, 8720 Schweinfurt | VIBRATION DAMPER WITH VARIABLE DAMPING FORCE |
| CN2731174Y (en) * | 2004-06-07 | 2005-10-05 | 江苏大学 | Multi-purpose Throttle type adjustable shock-damper |
| CN201344226Y (en) * | 2008-12-24 | 2009-11-11 | 比亚迪股份有限公司 | Vibration damper and vehicle with the same |
| CN202371076U (en) * | 2011-11-21 | 2012-08-08 | 北汽福田汽车股份有限公司 | Adjusting valve and damping-adjustable shock absorber comprising adjusting valve |
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2012
- 2012-12-20 CN CN201210558566.7A patent/CN103883663B/en active Active
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| Publication number | Publication date |
|---|---|
| CN103883663A (en) | 2014-06-25 |
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