Device for damping hunting of trailer towed by self-propelled vehicle

FIELD: transport engineering.

SUBSTANCE: invention relates to design of trailers and coupler gears. Proposed device contains arch-shaped damping pad to take action of friction device, for instance, pneumatic type, installed on end of draft pole. Damping pad is connected, for instance, by hinge joint with fixed or sufficiently resilient rear part of prime mover to kill transverse and longitudinal angular vibrations. Friction device contains friction shoes pressed to damping pad by pneumatic drive. Pressure force, thus created, changes depending on load of trailer and/or speed of prime mover automatically adapting to damping of hunting.

EFFECT: provision of change of operation of drive depending on pressure in suspension and/or speed of prime mover.

20 cl, 6 dwg

 

The present invention relates to a device for the attenuation of the wobbling of the trailer that is part of the transport complex consisting of a self-propelled vehicle and attached trailer, this device is also a safety means in case of breakage of the coupling.

It is intended, in particular, to ensure the sustainability of the road transport sector, consisting of a car towing a trailer with a Central axis, also called balanced trailer.

Experts know the risks and dangers associated with the wobbling of trailers, in particular, when driving downhill at high speeds.

Such wavering may lead to the overturning of the trailer or skid across the road in the so-called "position of the portfolio.

There are numerous devices for limiting the amplitude of the wobbling.

In particular, there is a lateral telescopic boom with shock-absorbing effect. These rods installed along both sides of the coupling device and connect one end by means of a ball joint with the rear part of the vehicle and at the other end by a ball joint with hitch.

These rods provide sufficient restriction to whipping with a small amp is audoi, but does not guarantee security in the case of trailers large size and high load.

From DE 2527673 a device for the attenuation of the wobbling of the trailer, in which the force pressing the friction elements of the drawbar is adjustable.

The present invention is to improve the device according to patent DE 2527673. Means in accordance with the present invention can additionally be a safety node, forming a temporary hitch connection in the event of breakage of the coupling device.

To achieve this objective the shock-absorbing device has an arcuate rigid or elastic shock-absorbing pad that interacts with a friction device mounted on the end of the drawbar, with both ends of the moving platform in the extension, providing rigid or swivel with fixed rear part of the car. The friction device consists of a flat friction structures, driven contact friction with the sides curved pad by drive means creating force convergence of these structures. The magnitude of this force convergence may vary, allowing you to get cushioning that is required in this situation. Such change is simply and automatically by feedback of the drive means with pnev oticheskimi pendants trailer and/or the speed of the transport complex.

In the case of the transport complex, not containing suspension, the effect is only speed, or use a special sensor for receiving the load of the trailer.

In the prior art a device for depreciation of their influence, as described in the application FR 2044031 And consisting of a metal disk sectors and brackets fixed to the shaft and is equipped with two friction pads. These pads are closely pressed to both sides of the disk sector by means of an elastic device, by creating friction braking when turning the drawbar relative to the towing vehicle to limit the influence of the trailer.

Excluding depreciation depreciation is provided a system has pre-defined limits, which depend only on the elastic force acting on the friction pads and, respectively, on the space sector.

Application DE 2527673 A, DE 7718934 U, CH 765858 A known similar devices in which the force pressing elements is adjustable.

In the suspension device in accordance with the present invention, the force pressing the friction design to the arched space, is not constant. It changes, and thereby the intensity of the depreciation of the wobbling becomes dependent on the load of the trailer and/or speed. It is known that, the more weight, nahtashah is camping in the trailer, the faster wobbling occurs and the more it becomes dangerous, since this increases the inertia of the trailer. The device in accordance with the present invention preferably increases the effect of depreciation in these circumstances. Indeed, the more loaded the trailer, the more involved the suspension and the more cushioning device presses the friction design to the arched space, thereby increasing the friction force.

When the trailer is empty or nedozagruzhen, its inertia is reduced. In this case, even weak depreciation. Pendants are involved to a lesser extent, and associated with the suspension device in accordance with the invention reduces the force which presses the friction design, reducing, thus, the frictional force and, accordingly, the intensity of the depreciation. Such changes can be achieved simply, quickly and completely automatically.

It is also known that an increase in speed leads to more dangerous wobbling. Therefore, it is necessary to take into account the value of the velocity and the pressure value of the suspensions to provide improved feedback.

It is also possible to limit the wobbling, using one or the other of these variables. Of course, if you are using the suspension of another type, it is impossible to use a pneumatic actuator, and to account for the level of retrieve and you must use a special sensor.

This dependence of the intensity of depreciation from being transported in the trailer load and/or speed allows you to accomplish one goal is to reduce the wear of the friction structures and extend thus the service life of the device.

Similarly, the intensity of depreciation can vary, and automatically, depending on road conditions, that is, from the terrain and road conditions, which moves the car, and from motion: acceleration, deceleration, centrifugal force.

The device in accordance with the present invention has an additional advantage: thanks to the design of the clamping unit is much easier maintenance device, such as a replacement of the friction pads, and attach and detach the trailer. In the suspension systems known in the prior art to carry out the necessary installation and dismantling had to overcome constant elastic pull-down force, such as a spring. When using the device in accordance with the present invention it is sufficient to remove the clamping pressure to freely carry out such work.

In addition, in the case of pneumatic means for creating a force which presses the friction design, the invention can automatically compensate for the gap, which is formed from wear trus is, for example by transferring them designs, through exposure to appropriate pressure to the pneumatic actuator.

In the latter case, even in the energy of the fluid pneumatic system incorporated some gradualism or much less sharpness when exposed to forces that caused pneumatic effect, accompanying every action.

Other distinctive features and advantages of the present invention are explained in the following description, given as non-restrictive example, with reference to the drawings, in which:

Figure 1 is a General top view and side view in perspective of the rear part of the vehicle and the hitch of the trailer, equipped with a device for the attenuation of the wobbling in accordance with the present invention.

Figure 2 is a top view of the rear of the car and hitch, equipped with a device for the attenuation of the wobbling in accordance with the present invention.

Figure 3 is a side view of the rear part of the vehicle and hitch, equipped with a device for the attenuation of the wobbling in accordance with the present invention.

Figure 4 - image of a cross-section along the line IV-IV of figure 2 options for performing a damping device in accordance with the present invention.

5 is a simplified diagram of the pneumatic control circuit device for depreciation of their influence, showing the e is on a direct communication with the pneumatic suspension system of the trailer.

6 is a diagram of a pneumatic control circuit device for depreciation of their influence, showing his feedback with pneumatic suspension system of the trailer by means of the pressure sensor speed by a speed sensor.

A device for the attenuation of the wobbling installed on the rear part 1 of the chassis or the vehicle body, connected to the trailer through the shaft 2, the hinge connected to the mechanical node, usually called coupling hook 3. Cushioning device comprises a cushioning pad 4 arch-like form, preferably in the form of an arc of a circle, centered on the coupling hook 3. Depreciation Playground 4 is a rigid metal plate or an elastic plate that is flexible enough to be deformed and to restore its original condition after the cessation of external influence. Each of the ends of the platform enters the cords 5 and 6 for connection with the rear part of the chassis to which it is attached. In accordance with the variation of the execution of the bracket pad ends with the free ends 7 and 8, each of which is hinged to the fixed part by means of a swivel joint 9 or 10, providing at least one rotary movement around the axis 11, transverse relative to the longitudinal axis of the vehicle.

In a preferred embodiment, in the connecting hinges 9 and 10 use ball bearings to provide multiple degrees of freedom and the angular damping of the oscillations in the longitudinal plane in combination with the angular oscillations in the transverse plane, or use any appropriate means to provide sufficient deflection of the swivel axis when the oscillations in the longitudinal plane.

The hinged connection of the ends of the bracket cushioning pad 4 is realized by constructing the block 12, is fixed relative to the vehicle chassis, for example, but not exclusively, on the mechanical node 13 is installed on the coupling hook 3.

In accordance with the option run depreciation Playground 4 is a more or less thick plate or a plate made of elastic material, for example of metal, is installed in a horizontal position, i.e. in a plane parallel to the shaft, at least its working part is made in the form of an arc of a circle. It contains two flat friction side: bottom side 14 and the upper side 15. This depreciation area is located on both sides of the drawbar 2, crossing it, for example, on top near its front end 16. In the upper h the STI front end 16 of the drawbar 2 is installed friction device 17, designed to amortize the wobbling by cuddling front flat sides 18 and 19 of the friction pads 21 and 22 respectively to the sides 14 and 15 of the cushioning pad 4 through the influence of one or more clamping force, for example pneumatic/th powers/s.

You can also differently placed or matching friction surfaces on the sides 14 and 15 of the pad 4 or apply on the side of this cushioning pad friction coating.

To ensure efficient operation, that is, to guarantee the efficiency of contact of the flat sides of the friction pads to the flat sides of the cushioning pad 4, determined by the latter plane is essentially parallel to the plane of the bracket, which is fixed to the friction device 17.

As for the connection between the cushioning pad 4 and the chassis, for security on each of the hinge joints 9 and 10 can be performed gap 20 perpendicular to the axis 11 of rotation. In the case of large angular oscillations in the transverse plane, e.g. tilting, the fingers are hinge joints 9 and 10 can slide in the slots 20 and receive different height position relative to each other.

In a preferred embodiment, the coupling hook should be located as close as possible to the plane defined by the damping space.

<> Although in the framework of the present invention to provide operation of the friction device is more preferable pneumatic energy, one should bear in mind that you can also use any other types of energy, particularly the energy of any other fluid, and electrical energy.

Next is a detailed description of the friction device 17 in accordance with a variant of execution, shown in figure 4. In this case we are talking about friction device using pneumatic energy.

The friction device 17 is installed in the bolt drawbar 2, contains a number of elements, sequentially superimposed on one another on both sides of the cushioning pad 4. The friction device 17 is a device clamping type with clamping jaws 23 and 24, on which is installed the upper friction pad 21 and the lower friction pad 22, such as friction linings.

The upper clamp sponge contains 23 on their outer side of the locking plate 25 and on the inner side of the friction pad 21. The lower clamp sponge 24 contains more elements. It also contains a shut-off plate 26 on the outer side and the friction pad 22 on the inner side. Under the distribution plate 28 in contact with the lower friction pad 22, pnevmaticheskie 27.

Under the action of pressure pneumatic actuator 27 acts on the distribution plate 28 force, the upward and transmitted to the lower friction pad 22, covering the distribution plate 28. This force moves the lower friction pad 22 up and pulls her to the surface 15 of the cushioning pad 4. Depreciation space 4 is sandwiched between the two friction pads 21 and 22. In the case of the wobbling trailer movement of the cushioning pad 4 relative to the drawbar depreciated due to friction between the surfaces 14, 15 of the cushioning pad and the surfaces 18, 19 of the friction pads.

The distribution plate 28 allows to distribute the force generated by the pneumatic actuator 27 and acting on the friction pad 22, to increase efficiency and ensure uniform wear of the pads, which is a relatively fragile component.

Pneumatic actuator 27 is a pneumatic bellows with one air chamber, through which the inlet-outlet opening 29 is supplied with compressed air. The pressure of the compressed air expands the camera, creating a force upward on the bottom plate and forcing the friction surface to converge. Naturally, the pneumatic actuator may differ from that presented in considered the m variant, but do not exit from the scope of the present invention. For example, it may be accordion type used in suspensions or in any of the air chamber, such as a fire hose or flat hose. You can also include embodiments of the present invention with another type of pneumatic actuator, for example, in the form of a pneumatic Jack.

In accordance with another variant of execution of the pneumatic force can act on the lower friction surface, and the upper friction surface against the cushioning pad 4.

Component parts of the friction device 17 are held together are pressed to each other via one or more fasteners, such as the connecting rod 30, which provides blocking of the upper locking plate 25 by means of base plates, fixed on the top plate retaining pins 31 with safety rings. Under the force of the pneumatic pressure of the upper plate 25 rests on the thrust washers.

When the wear of the pads 21 and 22, the thickness decreases, and consequently the frictional force on the depreciation area is becoming weaker. However, due to the pneumatic device in accordance with the present invention, the wear is automatically compensated for, because as you wear the pressure does not change. In Otley is from their classic systems require mechanical adjustment by tightening of the fastening means, in this case, this operation occurs continuously and automatically.

When the wear of the pads 21 and 22 becomes excessive and requires replacement, maintenance friction device 17 in accordance with the present invention is much easier compared with the conventional device. In fact, it is enough to release the air from the pneumatic actuator 27 for the termination of the force holding the various elements, and simple removal of the friction pads, starting from the top. In the classical system such dismantling works require much more effort as you have to overcome a permanent elastic force of the compression.

In accordance with the essential feature of the present invention a pneumatic actuator 27 is connected to the pneumatic circuit of the suspension of the trailer and/or truck, for example, directly by diversion of the pipeline supply of suspensions or through the drive circuit containing at least one pressure sensor mounted in the path of the suspensions of the trailer and/or truck, and the control module. The compressive pressure of the fluid inside the pneumatic actuator 27 can thus vary depending on the parameters of suspensions, reflecting the load of the trailer or truck or naked is the ultrasonic inspection both at the same time. In the preferred embodiment, it provides automatic and continuous coordination depreciation of their influence, in particular, with the weight of the trailer.

It should be noted that the values of the speed of the vehicle is also taken into consideration any alternative instead of the values of the pressure in the suspensions, or in conjunction with them.

Speed values can be taken into account, starting from the lowest or only from a certain threshold, further increase in depreciation after this threshold.

For this trailer and/or truck has a special sensor or use existing on the truck circuit that outputs the velocity values, for example values generated by the control circuit braking, called ABS.

Figure 5 and 6 schematically illustrate two examples of the implementation of the control loop cushioning device.

Air suspension trailer feed compressed air from the compressor through the buffer tank, and then through the control module and control.

Figure 5 and 6 of the suspension is shown diagrammatically in the form of bellows, and the modules and sensors in the form of rectangles.

In accordance with the basic option, shown in figure 5, compressed air is used to control the pneumatic actuator 27, passes through the outlet of the supply pipe hangers and served on a cushioning device, for example, h is the cut of the adaptation module. Compressed air is the working environment for pneumatic actuator 27, in which he goes through the hole 29. Get cushioning effect depends on the instantaneous air pressure in the supply pipe hangers.

Compressed air may also be supplied from the pneumatic system of the vehicle or truck.

The implementation of such a basic option allows you to get the primary drive system, sufficient for attenuation depended on the impact of the pneumatic suspension of the trailer and/or truck, showing the loading of the trailer and/or truck. So, in the case of increasing the weight of the trailer and/or truck the pressure in the pneumatic actuator also increases, increasing the force of compression and, hence, depreciation, and amortization.

In this embodiment, it is preferable that the pressure in the bellows suspension of the trailer and in the pneumatic actuator was equivalent.

In accordance with a second embodiment perform depreciation is provided a driving circuit in the form of a loop according to the scheme shown in Fig.6.

This diagram shows that the pneumatic actuator is powered pneumatic working medium flowing under pressure directly from the source of compressed air through the allotment made for the buffer tank. Compressed air is supplied to pneumatic actuator on the main is Truboprovod through the control module, which works on the basis of the values or States of the pressure sensor, installed on the pipeline compressed air suspension trailer and/or truck. The pressure sensor is a transducer or any other means, responsive to a pressure change by which or during which it becomes possible to operate the control module pneumatic energy supplied to the pneumatic actuator. Thus, the management of the cushioning device depends on the work and condition of the suspension of the trailer and/or truck.

In accordance with another variant of execution of the pressure sensor is complemented by the vehicle speed sensor, allowing to take into account the value of speed to control the force of compression exerted on the friction lining.

In accordance with another alternative implementation cushioning unit can be operated only from the speed sensor.

Pneumatic circuit may contain other, not shown in the drawings, such as a counting unit that calculates the average value of the pressure in two accordions suspensions to determine the pressure of the working medium supplied to the depreciation device. Indeed, the pressure can be different in each of the two suspensions, in particular, when the side slopes.

Can before the watch embodiment of a device in accordance with the present invention, in which pneumatic actuator 27 can be powered by the working environment from a source independent of the contour of the suspensions, but in which the pressure of working medium will be calculated depending on the parameters of the circuit.

You can also use other energy or other working environment, in addition to compressed air for creating the effort cuddling, such as hydraulic environment or electrical energy.

We can also perform numerous options. For example, you can apply additional pressure control of the working environment of user-specific or instant special parameters associated with the traffic conditions, and in particular on the amplitude of the wobbling, in addition to the values of velocity.

According to the law of action efforts cuddling the magnitude of the acting force is inversely proportional to the angular deviation between the direction of the longitudinal axis of the vehicle and the direction of the longitudinal axis of the trailer.

Of course, in this case, this force is preferably not must act on the turns to the shaft during the movement was entirely free.

For this purpose it is possible to provide an embodiment in which the thickness of the cushioning pad 4 can be varied, for example it may be more in the Central part and to decrease towards the ends of the pad. In smogen reverse option when the thickness of the pad is smaller in the Central part.

There are various options of constructive and technological character to perform a cushioning pad 4, a friction device 17 and mounting of site-level front end 16 of the drawbar 2.

In particular, we can provide complete mechanical functional site in the form of a single structural unit, in which at the level of the front end 16 of the drawbar 2 are connected together amortization Playground 4 and its continuation 5 and 6, each of which ends with a swivel 9 or 10, or made direct mounting connection, and a friction device 17 mounted on the front end 16 of the drawbar 2.

In accordance with the additional option swivel 9 and 10 are interconnected by a connecting cross member (not shown in the drawings)containing fastening means, such as removable means on the stationary rear part of the car.

Thus, by using the removable connection of this cross member to the vehicle's chassis or plate, made in one piece with this chassis, by gearing, suspension, stops or other means to install the device in accordance with the present invention that is already installed on the front end of the drawbar at the rear of the car every time completion of the connection of the trailer.

As for the plate in the form of an arc of a circle, forming part of its length cushioning platform 4, it is the preferred option will have the following characteristics.

Technically choose as much as possible the radius of the arc of a circle, thereby providing the lowest friction for the same depreciation moment. This minimum friction reduces wear of the friction surfaces and thereby significantly reduce maintenance costs and increase the service life of the friction device. When you select this radius can be considered all the requirements for the design and position of the friction device on the shaft.

In a preferred embodiment, the plates have a small thickness in order to give it greater flexibility and the ability to deform, for example, when twisted.

In addition, the plate must have the possibility of radial displacement, i.e. longitudinal movement relative to the shaft 2 at the exit of the UPS and downs on the road, and take the remote or near the position corresponding to the descent or ascent.

This task can be achieved by performing a large longitudinal dimensions clamping jaw friction device 17.

Pneumatic suspension whipping in accordance with the present invention forms a set of tools that will complement the flax ensure safety in the event of breakage of the coupling at the level of the coupling hook.

Indeed, if there is breakage of the mechanical connection at the level of the coupling hook, mounted to rotate through a bracket on the rear arcuate depreciation Playground instantly provides a mechanical connection between the vehicle and the trailer.

1. A device for the attenuation of the wobbling of the trailer that is part of the transport complex consisting of a truck and attached trailer, at least one of them is made on pneumatic suspensions, containing near a front end (16) of the drawbar (2) depreciation node, in which the damping action of the force of friction and which contains arcuate cushioning pad (4) with the center on the coupling hook (3), but independent from the latter, while depreciation Playground (4) or its bracket is connected with the possibility of damping the transverse or longitudinal angle oscillations with holder, made in one piece with the rear part of the vehicle, or with an intermediate bracket mounted on the fixed rear of the truck, the friction device (17)rigidly connected to the shaft (2), friction design (21, 22), pressed against the sides of the cushioning pad (4) by means of the actuator (27) to obtain the effect of the depreciation of the wobbling is ay reduce energy by friction on the ground, characterized in that the actuator (27)acting on the friction design, is driven by the operating energy, state-dependent load and/or speed of the trailer or truck and is controlled by means sensitive to the speed of the truck, and/or the means sensitive to pressure changes in the supply pipeline suspension of the trailer and/or truck so that with increasing load and/or speed increases depreciation wobbling and Vice versa, and as the operating energy for the actuation of the actuator (27) is used, the working environment of the suspensions of the trailer and/or truck.

2. The device according to claim 1, characterized in that the working environment of the actuator (27) flows through the outlet of the supply pipe suspension of the trailer and/or truck.

3. The device according to claim 1 or 2, characterized in that the drive loop is arranged to control the operation of the actuator (27) depending on the pressure suspension of the trailer and/or truck.

4. Device according to any one of claims 1 to 3, characterized in that the drive loop is arranged to control the operation of the actuator (27) depending on the load of the trailer.

5. Device according to any one of claims 1 to 4, characterized in that the drive loop is arranged to control the operation of the actuator (27) depending on the pressure suspension of the trailer and/or truck the speed of the car.

6. The device according to claim 1 or 2, characterized in that the drive loop is arranged to control the operation of the actuator (27) depending on vehicle speed.

7. The device according to claim 5 or 6, characterized in that the speed values of the vehicle are taken into account for the depreciation of their influence, only starting from a certain threshold.

8. Device according to any one of claims 1 to 7, characterized in that the shock-absorbing pad (4) is made in the form of a plate of flexible material, attached by their ends to the back of the truck.

9. Device according to any one of claims 1 to 8, characterized in that the friction device (17) is fixed on the upper side of the front end (16) of the drawbar (2).

10. Device according to any one of claims 1 to 9, characterized in that the shock-absorbing pad (4) is made with a friction coating.

11. Device according to any one of claims 1 to 9, characterized in that the shock-absorbing pad (4) contains two opposite sides (14) and (15), parallel to each other and essentially parallel to the shaft (2) or road surface, and a friction device (17) is a clamping device type.

12. The device according to claim 11, characterized in that the friction device (17) of the clamping type contains the clamping jaws (23) and (24)installed on pads or pads (21, 22), presses under the influence of the actuator (27) to the flat sides (14, 15) of amortization the second area (4).

13. Device according to any one of claims 1 to 12, characterized in that the thickness of the pad (4) is changed toward its ends.

14. Device according to any one of claims 1 to 13, characterized in that the actuator (27) runs on pneumatic power.

15. Device according to any one of claims 1 to 14, characterized in that the actuator is an air chamber.

16. The device according to item 15, characterized in that the actuator (27) is made in the form of an accordion that contains one or more folds.

17. The device according to item 16, characterized in that the accordion is an accordion pneumatic suspension of the car.

18. The device according to 14, characterized in that the actuator (27) is a pneumatic Jack.

19. Device according to any one of claims 1 to 18, characterized in that the various elements of the friction device (17) superimposed on each other in the form of a sandwich on both sides of the cushioning pad (4) and are held together by one or more fasteners, such as connecting rods (30), and this arrangement allows for easy disassembly after the termination or weaken the force of the compression generated by the actuator (27).

20. Device according to any one of claims 1 to 19, characterized in that the above-mentioned means comprises a single mechanical unit, made in the form of a single structural unit, in which the front end (16) of the drawbar (2) soy is inany depreciation Playground (4), the friction device (17), fixed on the shaft, and mechanical cross member connecting the two ends of the cushioning pad (4), and on which are fixed rigidly or by means of hinge joints the ends of the continuations depreciation area (4).



 

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20 cl, 6 dwg

FIELD: transport engineering; suspensions.

SUBSTANCE: proposed suspension hydraulic shock absorber has hydraulic cylinder, rod with piston, throttling holes made in piston, and compression valve and rebound valves. Sock absorber contains additionally external liquid flow main line secured between upper and lower spaces of hydraulic cylinder, with compression bypass spring valve and rebound bypass spring valve installed in parallel with external main line and device to adjust compression ratio of springs of bypass valves. Said device includes step motor and worms with floating nuts installed in compression and rebound valve housings, worms being mechanically coupled with step motor. Worms with floating nuts are set into rotation by step motor simultaneously, owing to corresponding arrangement of bypass valves, and provide synchronous adjustment of compression ratio of valve springs owing to translational displacements of floating nuts along worms. Shock absorber has control unit electrically coupled with step motor.

EFFECT: provision of adjustment of resistance of shock absorber depending on required smoothness, accuracy and operative control within required range owing to adjustment of are of cross section of throttling holes.

1 dwg

FIELD: automotive industry.

SUBSTANCE: hydraulic shock absorber comprises hydraulic cylinder (1) and rod with piston (2). The piston is provided with throttle openings (3) and receives the relief compression valve (4) and relief delivery valve (5). The shock absorber receives outer pipeline (6) for communication the top and bottom spaces of hydraulic cylinder (1), step motor (11) provided with mechanical drive (12) for control of compression (8) and delivery (10) cock-throttles, and control unit (13) connected with step motor (11). The pipeline receives, connected in parallel, the unit composed of by-pass valve (7) and compression cock-throttle (8) connected in series and unit composed of by-pass valve (9) and delivery cock-throttle (10) connected in series.

EFFECT: improved shock absorbing.

1 dwg

FIELD: transport.

SUBSTANCE: invention relates to machine building and can be used to control vibrations of damped mass and to stabilise its static position. Said system comprises suspension that incorporates hydraulic engine with double-acting electro hydraulic booster. Hydraulic engine plunger is articulated via flexible element with stabilised mass. Hydraulic engine power cylinder casing is coupled via flexible element with wheel axle or vehicle frame. Said system incorporates controller to generate control law on the basis of preset reference properties of motion and current state of stabilised mass and hydraulic engine plunger. One of controller inputs is connected via acceleration transducer with stabilised mass, while another input is connected via power cylinder casing current collector and double-way rod bars with feedback potentiometre. The latter controls power cylinder plunger positions at every time interval. Controller output is connected with electro hydraulic booster input.

EFFECT: reduced accelerations, higher accuracy of stabilisation.

1 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Proposed active suspension system comprises active suspension element incorporating stator and armature. Stator is secured on vehicle body. Armature is magnetically coupled with stator and can vertically move along the first support system. Note here that armature has rigid coupling with the carriage that moves in the second support system. Carriage is articulated by control tie rod with vehicle wheel. Second support system takes on loads originating at lateral and longitudinal vibrations of wheels.

EFFECT: ruling out of wheel loads on suspension active element.

78 cl, 23 dwg

FIELD: transport.

SUBSTANCE: set of invention relates to automatic control of transport facility chassis elements. Proposed system comprises air-operated regulation mechanism, air pressure source, control unit, pressure pickup, transducer to record magnitudes of mutual arrangement between chassis element and wheel pair. Control unit compares measured magnitude with target magnitude, and system pressure with tolerable pressure, defines if one of two criteria is satisfied for making decision on pressure adjustment to preset level, and adjusts system pressure to first upper limit. Proposed method comprises stages whereat mutual arrangement between chassis element and wheel pair is affected, control signal is generated proceeding from target magnitude, airflow is fed into adjustment mechanism, system pressure parameter is recorded, parameter of mutual arrangement between chassis element and wheel pair is recorded, measured magnitude is compared with target magnitude, and system pressure is compared with tolerable pressure. One of two criteria is checked for satisfaction. If yes, system pressure is adjusted to preset level. System pressure is adjusted to first upper limit if measured magnitude is in the limits of preset range nearby target magnitude before system pressure reaches said first upper limit. Motor transport facility comprises above described system.

EFFECT: power-consuming chassis control.

15 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive suspension with electromagnetic drive. Proposed suspension comprises electromagnetic drive, coupling mechanism and controller. Electromagnetic drive comprises cushioned side assembly, that of uncushioned side, and electromagnetic drive. Coupling mechanism comprises support spring. Controller comprises assembly to define drive target force to allow control said force. Assembly to define drive target force defines said force proceeding from required acting force using first and second transfer function. First transfer function represents that outputting cushioned and uncushioned side assemblies displacement relative to each other with drive actuated. Second transfer function represents that outputting actual acting force between cushioned and uncushioned sections with displacement magnitude loaded in controller.

EFFECT: higher stability and controllability.

8 cl, 8 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive suspension with electromagnetic drive. Suspension system comprises electromagnetic actuator, coupling mechanism and controller. Electromagnetic actuator comprises unit of cushioned section, unit on uncushioned section, screw mechanism, and motor. Coupling mechanism comprises thrust spring to allow jointing float unit and float unit support section. Controller serves to control actuator force. Controller incorporates circuit to control damping the oscillations of cushioned part and that to control relative oscillations.

EFFECT: higher stability and controllability.

15 cl, 22 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Adjustment device is arranged between wheel suspension spring plate 16 displacing in height and automobile body 54, 56. Drive motor 10 interacts via reduction gear stage 34, 36, 40 with rotary adjustment bush 26 to displace said plate 16 of spring 18. Reduction gear stage (34, 36, 40) is installed inside the rotary adjustment bush (26).

EFFECT: decreased sizes.

17 cl, 2 dwg

FIELD: transport.

SUBSTANCE: group of inventions relates to method for lowering dynamic loading of vehicle when moving over the surface, and to vehicles implementing this method. The method consists in the following: the response of vehicle model with various characteristics of shock-absorbing device rigidity and damping to given types of irregularities is measured; the responses are stored in memory unit. Memory unit with model responses is installed in vehicle. Using scanner, surface characteristics in direction of vehicle movement are determined. The characteristics are transmitted to memory unit containing model responses. Surface characteristic is compared with types of surface irregularities contained in the memory unit and with model response to similar surface characteristics. The best version of shock-absorbing device control is selected. The best control version is compared with measured spatial and angular coordinates of vehicle and with their first and second derivatives. Control signal is generated and transmitted to vehicle's shock-absorbing device. A vehicle including such as aircraft contains system which controls vehicle's components according to above mentioned method.

EFFECT: lower overloads of vehicle when it moves over irregular surface.

10 cl, 7 dwg

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